diff options
| -rw-r--r-- | .gitignore | 2 | ||||
| -rw-r--r-- | Makefile | 39 | ||||
| -rw-r--r-- | src/parser.c | 2922 | ||||
| -rw-r--r-- | src/parser.h | 338 | ||||
| -rw-r--r-- | src/parser.l | 791 | ||||
| -rw-r--r-- | src/screen.c | 959 | ||||
| -rw-r--r-- | src/screen.h | 175 | ||||
| -rw-r--r-- | src/vt100.h | 12 |
8 files changed, 5238 insertions, 0 deletions
diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..f9d502a --- /dev/null +++ b/.gitignore @@ -0,0 +1,2 @@ +/build +libvt100.so diff --git a/Makefile b/Makefile new file mode 100644 index 0000000..113658c --- /dev/null +++ b/Makefile @@ -0,0 +1,39 @@ +OUT = libvt100.so +BUILD = build/ +SRC = src/ +OBJ = $(BUILD)parser.o \ + $(BUILD)screen.o +LIBS = glib-2.0 +CFLAGS ?= -g -Wall -Wextra -Werror +LDFLAGS ?= -g -Wall -Wextra -Werror + +ALLCFLAGS = $(shell pkg-config --cflags $(LIBS)) $(CFLAGS) +ALLLDFLAGS = $(shell pkg-config --libs $(LIBS)) $(LDFLAGS) + +MAKEDEPEND = $(CC) $(ALLCFLAGS) -M -MP -MT '$@ $(@:$(BUILD)%.o=$(BUILD).%.d)' + +build: $(OUT) + +$(OUT): $(OBJ) + $(CC) $(ALLLDFLAGS) -fPIC -shared -o $@ $^ + +$(BUILD)%.o: $(SRC)%.c + @mkdir -p $(BUILD) + @$(MAKEDEPEND) -o $(<:$(SRC)%.c=$(BUILD).%.d) $< + $(CC) $(ALLCFLAGS) -c -fPIC -o $@ $< + +$(SRC)screen.c: $(SRC)parser.h + +$(SRC)%.c: $(SRC)%.l + $(LEX) -o $@ $< + +$(SRC)%.h: $(SRC)%.l + $(LEX) --header-file=$(<:.l=.h) -o /dev/null $< + +clean: + rm -f $(OUT) $(OBJ) $(OBJ:$(BUILD)%.o=$(BUILD).%.d) + @rmdir -p $(BUILD) > /dev/null 2>&1 + +-include $(OBJ:$(BUILD)%.o=$(BUILD).%.d) + +.PHONY: build clean diff --git a/src/parser.c b/src/parser.c new file mode 100644 index 0000000..0cef7cf --- /dev/null +++ b/src/parser.c @@ -0,0 +1,2922 @@ +#line 2 "src/parser.c" + +#line 4 "src/parser.c" + +#define YY_INT_ALIGNED short int + +/* A lexical scanner generated by flex */ + +#define FLEX_SCANNER +#define YY_FLEX_MAJOR_VERSION 2 +#define YY_FLEX_MINOR_VERSION 5 +#define YY_FLEX_SUBMINOR_VERSION 39 +#if YY_FLEX_SUBMINOR_VERSION > 0 +#define FLEX_BETA +#endif + +/* First, we deal with platform-specific or compiler-specific issues. */ + +/* begin standard C headers. */ +#include <stdio.h> +#include <string.h> +#include <errno.h> +#include <stdlib.h> + +/* end standard C headers. */ + +/* flex integer type definitions */ + +#ifndef FLEXINT_H +#define FLEXINT_H + +/* C99 systems have <inttypes.h>. Non-C99 systems may or may not. */ + +#if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L + +/* C99 says to define __STDC_LIMIT_MACROS before including stdint.h, + * if you want the limit (max/min) macros for int types. + */ +#ifndef __STDC_LIMIT_MACROS +#define __STDC_LIMIT_MACROS 1 +#endif + +#include <inttypes.h> +typedef int8_t flex_int8_t; +typedef uint8_t flex_uint8_t; +typedef int16_t flex_int16_t; +typedef uint16_t flex_uint16_t; +typedef int32_t flex_int32_t; +typedef uint32_t flex_uint32_t; +#else +typedef signed char flex_int8_t; +typedef short int flex_int16_t; +typedef int flex_int32_t; +typedef unsigned char flex_uint8_t; +typedef unsigned short int flex_uint16_t; +typedef unsigned int flex_uint32_t; + +/* Limits of integral types. */ +#ifndef INT8_MIN +#define INT8_MIN (-128) +#endif +#ifndef INT16_MIN +#define INT16_MIN (-32767-1) +#endif +#ifndef INT32_MIN +#define INT32_MIN (-2147483647-1) +#endif +#ifndef INT8_MAX +#define INT8_MAX (127) +#endif +#ifndef INT16_MAX +#define INT16_MAX (32767) +#endif +#ifndef INT32_MAX +#define INT32_MAX (2147483647) +#endif +#ifndef UINT8_MAX +#define UINT8_MAX (255U) +#endif +#ifndef UINT16_MAX +#define UINT16_MAX (65535U) +#endif +#ifndef UINT32_MAX +#define UINT32_MAX (4294967295U) +#endif + +#endif /* ! C99 */ + +#endif /* ! FLEXINT_H */ + +#ifdef __cplusplus + +/* The "const" storage-class-modifier is valid. */ +#define YY_USE_CONST + +#else /* ! __cplusplus */ + +/* C99 requires __STDC__ to be defined as 1. */ +#if defined (__STDC__) + +#define YY_USE_CONST + +#endif /* defined (__STDC__) */ +#endif /* ! __cplusplus */ + +#ifdef YY_USE_CONST +#define yyconst const +#else +#define yyconst +#endif + +/* Returned upon end-of-file. */ +#define YY_NULL 0 + +/* Promotes a possibly negative, possibly signed char to an unsigned + * integer for use as an array index. If the signed char is negative, + * we want to instead treat it as an 8-bit unsigned char, hence the + * double cast. + */ +#define YY_SC_TO_UI(c) ((unsigned int) (unsigned char) c) + +/* An opaque pointer. */ +#ifndef YY_TYPEDEF_YY_SCANNER_T +#define YY_TYPEDEF_YY_SCANNER_T +typedef void* yyscan_t; +#endif + +/* For convenience, these vars (plus the bison vars far below) + are macros in the reentrant scanner. */ +#define yyin yyg->yyin_r +#define yyout yyg->yyout_r +#define yyextra yyg->yyextra_r +#define yyleng yyg->yyleng_r +#define yytext yyg->yytext_r +#define yylineno (YY_CURRENT_BUFFER_LVALUE->yy_bs_lineno) +#define yycolumn (YY_CURRENT_BUFFER_LVALUE->yy_bs_column) +#define yy_flex_debug yyg->yy_flex_debug_r + +/* Enter a start condition. This macro really ought to take a parameter, + * but we do it the disgusting crufty way forced on us by the ()-less + * definition of BEGIN. + */ +#define BEGIN yyg->yy_start = 1 + 2 * + +/* Translate the current start state into a value that can be later handed + * to BEGIN to return to the state. The YYSTATE alias is for lex + * compatibility. + */ +#define YY_START ((yyg->yy_start - 1) / 2) +#define YYSTATE YY_START + +/* Action number for EOF rule of a given start state. */ +#define YY_STATE_EOF(state) (YY_END_OF_BUFFER + state + 1) + +/* Special action meaning "start processing a new file". */ +#define YY_NEW_FILE vt100_parser_yyrestart(yyin ,yyscanner ) + +#define YY_END_OF_BUFFER_CHAR 0 + +/* Size of default input buffer. */ +#ifndef YY_BUF_SIZE +#define YY_BUF_SIZE 16384 +#endif + +/* The state buf must be large enough to hold one state per character in the main buffer. + */ +#define YY_STATE_BUF_SIZE ((YY_BUF_SIZE + 2) * sizeof(yy_state_type)) + +#ifndef YY_TYPEDEF_YY_BUFFER_STATE +#define YY_TYPEDEF_YY_BUFFER_STATE +typedef struct yy_buffer_state *YY_BUFFER_STATE; +#endif + +#ifndef YY_TYPEDEF_YY_SIZE_T +#define YY_TYPEDEF_YY_SIZE_T +typedef size_t yy_size_t; +#endif + +#define EOB_ACT_CONTINUE_SCAN 0 +#define EOB_ACT_END_OF_FILE 1 +#define EOB_ACT_LAST_MATCH 2 + + #define YY_LESS_LINENO(n) + #define YY_LINENO_REWIND_TO(ptr) + +/* Return all but the first "n" matched characters back to the input stream. */ +#define yyless(n) \ + do \ + { \ + /* Undo effects of setting up yytext. */ \ + int yyless_macro_arg = (n); \ + YY_LESS_LINENO(yyless_macro_arg);\ + *yy_cp = yyg->yy_hold_char; \ + YY_RESTORE_YY_MORE_OFFSET \ + yyg->yy_c_buf_p = yy_cp = yy_bp + yyless_macro_arg - YY_MORE_ADJ; \ + YY_DO_BEFORE_ACTION; /* set up yytext again */ \ + } \ + while ( 0 ) + +#define unput(c) yyunput( c, yyg->yytext_ptr , yyscanner ) + +#ifndef YY_STRUCT_YY_BUFFER_STATE +#define YY_STRUCT_YY_BUFFER_STATE +struct yy_buffer_state + { + FILE *yy_input_file; + + char *yy_ch_buf; /* input buffer */ + char *yy_buf_pos; /* current position in input buffer */ + + /* Size of input buffer in bytes, not including room for EOB + * characters. + */ + yy_size_t yy_buf_size; + + /* Number of characters read into yy_ch_buf, not including EOB + * characters. + */ + yy_size_t yy_n_chars; + + /* Whether we "own" the buffer - i.e., we know we created it, + * and can realloc() it to grow it, and should free() it to + * delete it. + */ + int yy_is_our_buffer; + + /* Whether this is an "interactive" input source; if so, and + * if we're using stdio for input, then we want to use getc() + * instead of fread(), to make sure we stop fetching input after + * each newline. + */ + int yy_is_interactive; + + /* Whether we're considered to be at the beginning of a line. + * If so, '^' rules will be active on the next match, otherwise + * not. + */ + int yy_at_bol; + + int yy_bs_lineno; /**< The line count. */ + int yy_bs_column; /**< The column count. */ + + /* Whether to try to fill the input buffer when we reach the + * end of it. + */ + int yy_fill_buffer; + + int yy_buffer_status; + +#define YY_BUFFER_NEW 0 +#define YY_BUFFER_NORMAL 1 + /* When an EOF's been seen but there's still some text to process + * then we mark the buffer as YY_EOF_PENDING, to indicate that we + * shouldn't try reading from the input source any more. We might + * still have a bunch of tokens to match, though, because of + * possible backing-up. + * + * When we actually see the EOF, we change the status to "new" + * (via vt100_parser_yyrestart()), so that the user can continue scanning by + * just pointing yyin at a new input file. + */ +#define YY_BUFFER_EOF_PENDING 2 + + }; +#endif /* !YY_STRUCT_YY_BUFFER_STATE */ + +/* We provide macros for accessing buffer states in case in the + * future we want to put the buffer states in a more general + * "scanner state". + * + * Returns the top of the stack, or NULL. + */ +#define YY_CURRENT_BUFFER ( yyg->yy_buffer_stack \ + ? yyg->yy_buffer_stack[yyg->yy_buffer_stack_top] \ + : NULL) + +/* Same as previous macro, but useful when we know that the buffer stack is not + * NULL or when we need an lvalue. For internal use only. + */ +#define YY_CURRENT_BUFFER_LVALUE yyg->yy_buffer_stack[yyg->yy_buffer_stack_top] + +void vt100_parser_yyrestart (FILE *input_file ,yyscan_t yyscanner ); +void vt100_parser_yy_switch_to_buffer (YY_BUFFER_STATE new_buffer ,yyscan_t yyscanner ); +YY_BUFFER_STATE vt100_parser_yy_create_buffer (FILE *file,int size ,yyscan_t yyscanner ); +void vt100_parser_yy_delete_buffer (YY_BUFFER_STATE b ,yyscan_t yyscanner ); +void vt100_parser_yy_flush_buffer (YY_BUFFER_STATE b ,yyscan_t yyscanner ); +void vt100_parser_yypush_buffer_state (YY_BUFFER_STATE new_buffer ,yyscan_t yyscanner ); +void vt100_parser_yypop_buffer_state (yyscan_t yyscanner ); + +static void vt100_parser_yyensure_buffer_stack (yyscan_t yyscanner ); +static void vt100_parser_yy_load_buffer_state (yyscan_t yyscanner ); +static void vt100_parser_yy_init_buffer (YY_BUFFER_STATE b,FILE *file ,yyscan_t yyscanner ); + +#define YY_FLUSH_BUFFER vt100_parser_yy_flush_buffer(YY_CURRENT_BUFFER ,yyscanner) + +YY_BUFFER_STATE vt100_parser_yy_scan_buffer (char *base,yy_size_t size ,yyscan_t yyscanner ); +YY_BUFFER_STATE vt100_parser_yy_scan_string (yyconst char *yy_str ,yyscan_t yyscanner ); +YY_BUFFER_STATE vt100_parser_yy_scan_bytes (yyconst char *bytes,yy_size_t len ,yyscan_t yyscanner ); + +void *vt100_parser_yyalloc (yy_size_t ,yyscan_t yyscanner ); +void *vt100_parser_yyrealloc (void *,yy_size_t ,yyscan_t yyscanner ); +void vt100_parser_yyfree (void * ,yyscan_t yyscanner ); + +#define yy_new_buffer vt100_parser_yy_create_buffer + +#define yy_set_interactive(is_interactive) \ + { \ + if ( ! YY_CURRENT_BUFFER ){ \ + vt100_parser_yyensure_buffer_stack (yyscanner); \ + YY_CURRENT_BUFFER_LVALUE = \ + vt100_parser_yy_create_buffer(yyin,YY_BUF_SIZE ,yyscanner); \ + } \ + YY_CURRENT_BUFFER_LVALUE->yy_is_interactive = is_interactive; \ + } + +#define yy_set_bol(at_bol) \ + { \ + if ( ! YY_CURRENT_BUFFER ){\ + vt100_parser_yyensure_buffer_stack (yyscanner); \ + YY_CURRENT_BUFFER_LVALUE = \ + vt100_parser_yy_create_buffer(yyin,YY_BUF_SIZE ,yyscanner); \ + } \ + YY_CURRENT_BUFFER_LVALUE->yy_at_bol = at_bol; \ + } + +#define YY_AT_BOL() (YY_CURRENT_BUFFER_LVALUE->yy_at_bol) + +/* Begin user sect3 */ + +#define vt100_parser_yywrap(yyscanner) 1 +#define YY_SKIP_YYWRAP + +typedef unsigned char YY_CHAR; + +typedef int yy_state_type; + +#define yytext_ptr yytext_r + +static yy_state_type yy_get_previous_state (yyscan_t yyscanner ); +static yy_state_type yy_try_NUL_trans (yy_state_type current_state ,yyscan_t yyscanner); +static int yy_get_next_buffer (yyscan_t yyscanner ); +static void yy_fatal_error (yyconst char msg[] ,yyscan_t yyscanner ); + +/* Done after the current pattern has been matched and before the + * corresponding action - sets up yytext. + */ +#define YY_DO_BEFORE_ACTION \ + yyg->yytext_ptr = yy_bp; \ + yyleng = (size_t) (yy_cp - yy_bp); \ + yyg->yy_hold_char = *yy_cp; \ + *yy_cp = '\0'; \ + yyg->yy_c_buf_p = yy_cp; + +#define YY_NUM_RULES 57 +#define YY_END_OF_BUFFER 58 +/* This struct is not used in this scanner, + but its presence is necessary. */ +struct yy_trans_info + { + flex_int32_t yy_verify; + flex_int32_t yy_nxt; + }; +static yyconst flex_int16_t yy_accept[149] = + { 0, + 0, 0, 58, 55, 1, 2, 3, 4, 5, 6, + 7, 8, 48, 40, 56, 42, 43, 44, 53, 54, + 54, 54, 54, 54, 14, 15, 9, 10, 11, 46, + 47, 12, 13, 0, 0, 0, 40, 0, 0, 0, + 41, 43, 44, 0, 36, 0, 37, 0, 38, 0, + 39, 49, 50, 45, 45, 50, 50, 16, 17, 18, + 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, + 29, 30, 0, 0, 0, 51, 52, 52, 52, 52, + 0, 0, 0, 0, 0, 0, 0, 44, 45, 45, + 45, 31, 32, 0, 0, 0, 0, 0, 0, 0, + + 0, 0, 0, 0, 45, 0, 33, 0, 0, 0, + 0, 34, 0, 0, 0, 0, 35, 0, 0, 0, + 0, 0, 45, 45, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 27, 28, 45, 0, 0, 0, + 45, 45, 0, 45, 45, 0, 45, 0 + } ; + +static yyconst flex_int32_t yy_ec[256] = + { 0, + 1, 1, 1, 1, 1, 1, 2, 3, 4, 5, + 6, 7, 8, 1, 9, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 10, 1, 1, 1, + 1, 11, 11, 11, 11, 11, 11, 11, 11, 12, + 13, 14, 15, 11, 11, 11, 11, 16, 17, 18, + 19, 19, 19, 19, 20, 21, 19, 22, 23, 24, + 25, 26, 27, 28, 29, 30, 31, 32, 22, 22, + 22, 33, 22, 34, 35, 36, 37, 22, 22, 38, + 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, + 39, 22, 40, 22, 22, 22, 22, 22, 41, 22, + + 22, 22, 42, 43, 22, 22, 22, 44, 45, 22, + 22, 22, 22, 46, 22, 22, 22, 22, 22, 22, + 22, 22, 22, 22, 22, 22, 1, 47, 47, 47, + 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, + 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, + 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, + 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, + 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, + 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, + 47, 48, 48, 48, 48, 48, 48, 48, 48, 48, + + 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, + 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, + 48, 48, 48, 49, 49, 49, 49, 49, 49, 49, + 49, 49, 49, 49, 49, 49, 49, 49, 49, 50, + 50, 50, 50, 50, 50, 50, 50, 51, 51, 51, + 51, 51, 51, 51, 51 + } ; + +static yyconst flex_int32_t yy_meta[52] = + { 0, + 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, + 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, + 4, 3, 5, 6, 6, 3, 6, 3, 3, 3, + 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, + 3, 3, 5, 5, 3, 3, 7, 8, 8, 8, + 7 + } ; + +static yyconst flex_int16_t yy_base[167] = + { 0, + 0, 51, 379, 556, 556, 556, 556, 556, 556, 556, + 556, 556, 102, 14, 556, 331, 330, 329, 556, 556, + 0, 5, 10, 15, 556, 556, 556, 556, 556, 152, + 202, 556, 556, 328, 327, 325, 17, 324, 323, 312, + 20, 311, 310, 20, 556, 25, 556, 30, 556, 60, + 556, 556, 556, 190, 556, 237, 268, 556, 556, 556, + 556, 556, 556, 556, 556, 556, 556, 556, 556, 556, + 556, 556, 309, 308, 307, 556, 556, 330, 329, 328, + 302, 294, 292, 283, 282, 281, 277, 274, 52, 198, + 288, 556, 556, 273, 272, 44, 197, 228, 271, 263, + + 254, 253, 317, 64, 62, 252, 556, 242, 251, 250, + 246, 556, 246, 216, 202, 196, 556, 277, 188, 186, + 181, 177, 0, 198, 216, 348, 169, 102, 50, 49, + 48, 44, 368, 202, 556, 556, 386, 43, 41, 31, + 406, 207, 424, 0, 213, 296, 327, 556, 470, 476, + 482, 486, 490, 494, 500, 506, 511, 516, 523, 530, + 535, 538, 541, 543, 546, 549 + } ; + +static yyconst flex_int16_t yy_def[167] = + { 0, + 149, 149, 148, 148, 148, 148, 148, 148, 148, 148, + 148, 148, 148, 150, 148, 148, 148, 148, 148, 148, + 151, 152, 153, 154, 148, 148, 148, 148, 148, 148, + 155, 148, 148, 148, 148, 148, 150, 148, 148, 148, + 156, 148, 148, 151, 148, 152, 148, 153, 148, 154, + 148, 148, 148, 30, 148, 30, 56, 148, 148, 148, + 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, + 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, + 148, 148, 148, 148, 148, 148, 148, 148, 157, 56, + 56, 148, 148, 148, 148, 158, 159, 160, 148, 148, + + 148, 148, 56, 148, 161, 148, 148, 158, 148, 148, + 148, 148, 159, 148, 148, 148, 148, 160, 148, 148, + 148, 148, 103, 162, 163, 91, 148, 148, 148, 148, + 148, 148, 103, 164, 148, 148, 91, 148, 148, 148, + 103, 165, 91, 143, 166, 143, 143, 0, 148, 148, + 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, + 148, 148, 148, 148, 148, 148 + } ; + +static yyconst flex_int16_t yy_nxt[608] = + { 0, + 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, + 44, 44, 44, 44, 44, 46, 46, 46, 46, 46, + 48, 48, 48, 48, 48, 50, 50, 50, 50, 50, + 44, 44, 44, 44, 44, 46, 46, 46, 46, 46, + 48, 48, 48, 48, 48, 107, 15, 16, 17, 18, + 15, 4, 5, 6, 7, 8, 9, 10, 11, 12, + 13, 38, 39, 40, 38, 39, 40, 38, 39, 40, + 50, 50, 50, 50, 50, 104, 104, 118, 104, 125, + 125, 125, 125, 125, 125, 104, 104, 113, 104, 108, + 140, 109, 110, 111, 118, 139, 113, 15, 16, 17, + + 18, 15, 19, 19, 19, 19, 19, 19, 19, 19, + 19, 19, 20, 21, 22, 23, 24, 20, 20, 20, + 20, 25, 26, 20, 20, 20, 27, 28, 20, 20, + 20, 20, 20, 20, 20, 20, 20, 20, 29, 20, + 30, 31, 32, 33, 20, 20, 20, 20, 138, 34, + 35, 36, 52, 52, 52, 52, 52, 52, 52, 52, + 52, 52, 53, 53, 53, 53, 53, 54, 54, 54, + 54, 54, 54, 53, 55, 56, 56, 53, 57, 58, + 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, + 53, 53, 53, 53, 69, 70, 71, 72, 112, 73, + + 74, 75, 76, 76, 76, 76, 76, 76, 76, 76, + 76, 76, 89, 53, 53, 108, 53, 78, 79, 80, + 105, 104, 104, 77, 104, 104, 104, 132, 104, 117, + 104, 104, 131, 104, 118, 53, 104, 104, 134, 104, + 69, 70, 130, 107, 114, 115, 116, 112, 129, 81, + 82, 83, 90, 90, 90, 90, 90, 90, 135, 136, + 53, 53, 113, 53, 53, 53, 53, 53, 53, 53, + 53, 53, 53, 53, 53, 119, 120, 121, 117, 53, + 53, 53, 53, 91, 91, 91, 91, 91, 91, 109, + 110, 111, 128, 114, 115, 116, 127, 108, 53, 41, + + 20, 92, 93, 91, 91, 91, 91, 91, 91, 122, + 105, 147, 147, 147, 147, 147, 147, 77, 106, 53, + 41, 92, 93, 102, 119, 120, 121, 41, 101, 20, + 69, 70, 123, 123, 123, 123, 123, 123, 100, 124, + 99, 53, 147, 147, 147, 147, 147, 147, 77, 63, + 98, 97, 96, 95, 94, 53, 88, 41, 87, 69, + 70, 71, 72, 137, 137, 137, 137, 137, 137, 86, + 41, 85, 53, 84, 20, 43, 42, 41, 148, 148, + 148, 53, 53, 141, 141, 141, 141, 141, 141, 148, + 142, 148, 148, 148, 148, 148, 148, 148, 148, 148, + + 53, 137, 137, 137, 137, 137, 137, 148, 148, 148, + 148, 148, 148, 148, 148, 148, 148, 148, 148, 53, + 53, 141, 141, 141, 141, 141, 141, 148, 142, 148, + 148, 148, 148, 148, 148, 148, 148, 148, 53, 144, + 144, 144, 144, 144, 144, 148, 145, 148, 148, 148, + 148, 148, 148, 148, 148, 148, 148, 53, 53, 148, + 148, 148, 148, 148, 148, 148, 148, 148, 71, 72, + 14, 14, 14, 14, 14, 14, 14, 14, 37, 37, + 37, 37, 148, 37, 45, 45, 45, 45, 47, 47, + 47, 47, 49, 49, 49, 49, 51, 51, 51, 51, + + 77, 77, 77, 77, 77, 77, 148, 77, 41, 41, + 41, 41, 148, 41, 103, 148, 103, 108, 108, 108, + 108, 108, 148, 108, 113, 113, 113, 113, 113, 148, + 113, 118, 118, 118, 118, 118, 148, 118, 126, 148, + 126, 133, 148, 133, 125, 125, 125, 148, 125, 143, + 148, 143, 146, 148, 146, 3, 148, 148, 148, 148, + 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, + 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, + 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, + 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, + + 148, 148, 148, 148, 148, 148, 148 + } ; + +static yyconst flex_int16_t yy_chk[608] = + { 0, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 21, 21, 21, 21, 21, 22, 22, 22, 22, 22, + 23, 23, 23, 23, 23, 24, 24, 24, 24, 24, + 44, 44, 44, 44, 44, 46, 46, 46, 46, 46, + 48, 48, 48, 48, 48, 96, 1, 1, 1, 1, + 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 14, 14, 14, 37, 37, 37, 41, 41, 41, + 50, 50, 50, 50, 50, 89, 89, 140, 89, 104, + 104, 104, 104, 104, 104, 105, 105, 139, 105, 138, + 132, 96, 96, 96, 131, 130, 129, 2, 2, 2, + + 2, 2, 13, 13, 13, 13, 13, 13, 13, 13, + 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, + 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, + 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, + 13, 13, 13, 13, 13, 13, 13, 13, 128, 13, + 13, 13, 30, 30, 30, 30, 30, 30, 30, 30, + 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, + 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, + 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, + 30, 30, 30, 30, 30, 30, 30, 30, 97, 30, + + 30, 30, 31, 31, 31, 31, 31, 31, 31, 31, + 31, 31, 54, 54, 54, 127, 54, 31, 31, 31, + 90, 124, 124, 122, 124, 134, 134, 121, 134, 98, + 142, 142, 120, 142, 119, 54, 145, 145, 125, 145, + 90, 90, 116, 108, 97, 97, 97, 113, 115, 31, + 31, 31, 56, 56, 56, 56, 56, 56, 125, 125, + 56, 56, 114, 56, 56, 56, 56, 56, 56, 56, + 56, 56, 56, 56, 56, 98, 98, 98, 118, 56, + 56, 56, 56, 57, 57, 57, 57, 57, 57, 108, + 108, 108, 111, 113, 113, 113, 110, 109, 106, 102, + + 101, 57, 57, 91, 91, 91, 91, 91, 91, 100, + 91, 146, 146, 146, 146, 146, 146, 99, 95, 94, + 88, 91, 91, 87, 118, 118, 118, 86, 85, 84, + 91, 91, 103, 103, 103, 103, 103, 103, 83, 103, + 82, 146, 147, 147, 147, 147, 147, 147, 81, 103, + 80, 79, 78, 75, 74, 73, 43, 42, 40, 103, + 103, 103, 103, 126, 126, 126, 126, 126, 126, 39, + 38, 36, 147, 35, 34, 18, 17, 16, 3, 0, + 0, 126, 126, 133, 133, 133, 133, 133, 133, 0, + 133, 0, 0, 0, 0, 0, 0, 0, 0, 0, + + 133, 137, 137, 137, 137, 137, 137, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 137, + 137, 141, 141, 141, 141, 141, 141, 0, 141, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 141, 143, + 143, 143, 143, 143, 143, 0, 143, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 143, 143, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 143, 143, + 149, 149, 149, 149, 149, 149, 149, 149, 150, 150, + 150, 150, 0, 150, 151, 151, 151, 151, 152, 152, + 152, 152, 153, 153, 153, 153, 154, 154, 154, 154, + + 155, 155, 155, 155, 155, 155, 0, 155, 156, 156, + 156, 156, 0, 156, 157, 0, 157, 158, 158, 158, + 158, 158, 0, 158, 159, 159, 159, 159, 159, 0, + 159, 160, 160, 160, 160, 160, 0, 160, 161, 0, + 161, 162, 0, 162, 163, 163, 164, 0, 164, 165, + 0, 165, 166, 0, 166, 148, 148, 148, 148, 148, + 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, + 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, + 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, + 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, + + 148, 148, 148, 148, 148, 148, 148 + } ; + +/* The intent behind this definition is that it'll catch + * any uses of REJECT which flex missed. + */ +#define REJECT reject_used_but_not_detected +#define yymore() yymore_used_but_not_detected +#define YY_MORE_ADJ 0 +#define YY_RESTORE_YY_MORE_OFFSET +#line 1 "src/parser.l" +#line 2 "src/parser.l" +#include <string.h> + +#include "vt100.h" + +#define VT100_PARSER_CSI_MAX_PARAMS 256 + +#define YY_EXIT_FAILURE (UNUSED(yyscanner), 2) +#define YY_NO_INPUT 1 +#line 82 "src/parser.l" +static void vt100_parser_handle_bel(VT100Screen *vt); +static void vt100_parser_handle_bs(VT100Screen *vt); +static void vt100_parser_handle_tab(VT100Screen *vt); +static void vt100_parser_handle_lf(VT100Screen *vt); +static void vt100_parser_handle_cr(VT100Screen *vt); +static void vt100_parser_handle_deckpam(VT100Screen *vt); +static void vt100_parser_handle_deckpnm(VT100Screen *vt); +static void vt100_parser_handle_ri(VT100Screen *vt); +static void vt100_parser_handle_ris(VT100Screen *vt); +static void vt100_parser_handle_vb(VT100Screen *vt); +static void vt100_parser_handle_decsc(VT100Screen *vt); +static void vt100_parser_handle_decrc(VT100Screen *vt); +static void vt100_parser_extract_csi_params( + char *buf, size_t len, int *params, int *nparams); +static void vt100_parser_extract_sm_params( + char *buf, size_t len, char *modes, int *params, int *nparams); +static void vt100_parser_handle_ich(VT100Screen *vt, char *buf, size_t len); +static void vt100_parser_handle_cuu(VT100Screen *vt, char *buf, size_t len); +static void vt100_parser_handle_cud(VT100Screen *vt, char *buf, size_t len); +static void vt100_parser_handle_cuf(VT100Screen *vt, char *buf, size_t len); +static void vt100_parser_handle_cub(VT100Screen *vt, char *buf, size_t len); +static void vt100_parser_handle_cup(VT100Screen *vt, char *buf, size_t len); +static void vt100_parser_handle_ed(VT100Screen *vt, char *buf, size_t len); +static void vt100_parser_handle_el(VT100Screen *vt, char *buf, size_t len); +static void vt100_parser_handle_il(VT100Screen *vt, char *buf, size_t len); +static void vt100_parser_handle_dl(VT100Screen *vt, char *buf, size_t len); +static void vt100_parser_handle_dch(VT100Screen *vt, char *buf, size_t len); +static void vt100_parser_handle_sm(VT100Screen *vt, char *buf, size_t len); +static void vt100_parser_handle_rm(VT100Screen *vt, char *buf, size_t len); +static void vt100_parser_handle_sgr(VT100Screen *vt, char *buf, size_t len); +static void vt100_parser_handle_csr(VT100Screen *vt, char *buf, size_t len); +static void vt100_parser_handle_decsed(VT100Screen *vt, char *buf, size_t len); +static void vt100_parser_handle_decsel(VT100Screen *vt, char *buf, size_t len); +static void vt100_parser_handle_osc0(VT100Screen *vt, char *buf, size_t len); +static void vt100_parser_handle_osc1(VT100Screen *vt, char *buf, size_t len); +static void vt100_parser_handle_osc2(VT100Screen *vt, char *buf, size_t len); +static void vt100_parser_handle_ascii(VT100Screen *vt, char *text, size_t len); +static void vt100_parser_handle_text(VT100Screen *vt, char *text, size_t len); +#line 668 "src/parser.c" + +#define INITIAL 0 + +#ifndef YY_NO_UNISTD_H +/* Special case for "unistd.h", since it is non-ANSI. We include it way + * down here because we want the user's section 1 to have been scanned first. + * The user has a chance to override it with an option. + */ +#include <unistd.h> +#endif + +#define YY_EXTRA_TYPE VT100Screen * + +/* Holds the entire state of the reentrant scanner. */ +struct yyguts_t + { + + /* User-defined. Not touched by flex. */ + YY_EXTRA_TYPE yyextra_r; + + /* The rest are the same as the globals declared in the non-reentrant scanner. */ + FILE *yyin_r, *yyout_r; + size_t yy_buffer_stack_top; /**< index of top of stack. */ + size_t yy_buffer_stack_max; /**< capacity of stack. */ + YY_BUFFER_STATE * yy_buffer_stack; /**< Stack as an array. */ + char yy_hold_char; + yy_size_t yy_n_chars; + yy_size_t yyleng_r; + char *yy_c_buf_p; + int yy_init; + int yy_start; + int yy_did_buffer_switch_on_eof; + int yy_start_stack_ptr; + int yy_start_stack_depth; + int *yy_start_stack; + yy_state_type yy_last_accepting_state; + char* yy_last_accepting_cpos; + + int yylineno_r; + int yy_flex_debug_r; + + char *yytext_r; + int yy_more_flag; + int yy_more_len; + + }; /* end struct yyguts_t */ + +static int yy_init_globals (yyscan_t yyscanner ); + +int vt100_parser_yylex_init (yyscan_t* scanner); + +int vt100_parser_yylex_init_extra (YY_EXTRA_TYPE user_defined,yyscan_t* scanner); + +/* Accessor methods to globals. + These are made visible to non-reentrant scanners for convenience. */ + +int vt100_parser_yylex_destroy (yyscan_t yyscanner ); + +int vt100_parser_yyget_debug (yyscan_t yyscanner ); + +void vt100_parser_yyset_debug (int debug_flag ,yyscan_t yyscanner ); + +YY_EXTRA_TYPE vt100_parser_yyget_extra (yyscan_t yyscanner ); + +void vt100_parser_yyset_extra (YY_EXTRA_TYPE user_defined ,yyscan_t yyscanner ); + +FILE *vt100_parser_yyget_in (yyscan_t yyscanner ); + +void vt100_parser_yyset_in (FILE * in_str ,yyscan_t yyscanner ); + +FILE *vt100_parser_yyget_out (yyscan_t yyscanner ); + +void vt100_parser_yyset_out (FILE * out_str ,yyscan_t yyscanner ); + +yy_size_t vt100_parser_yyget_leng (yyscan_t yyscanner ); + +char *vt100_parser_yyget_text (yyscan_t yyscanner ); + +int vt100_parser_yyget_lineno (yyscan_t yyscanner ); + +void vt100_parser_yyset_lineno (int line_number ,yyscan_t yyscanner ); + +int vt100_parser_yyget_column (yyscan_t yyscanner ); + +void vt100_parser_yyset_column (int column_no ,yyscan_t yyscanner ); + +/* Macros after this point can all be overridden by user definitions in + * section 1. + */ + +#ifndef YY_SKIP_YYWRAP +#ifdef __cplusplus +extern "C" int vt100_parser_yywrap (yyscan_t yyscanner ); +#else +extern int vt100_parser_yywrap (yyscan_t yyscanner ); +#endif +#endif + +#ifndef yytext_ptr +static void yy_flex_strncpy (char *,yyconst char *,int ,yyscan_t yyscanner); +#endif + +#ifdef YY_NEED_STRLEN +static int yy_flex_strlen (yyconst char * ,yyscan_t yyscanner); +#endif + +#ifndef YY_NO_INPUT + +#ifdef __cplusplus +static int yyinput (yyscan_t yyscanner ); +#else +static int input (yyscan_t yyscanner ); +#endif + +#endif + +/* Amount of stuff to slurp up with each read. */ +#ifndef YY_READ_BUF_SIZE +#define YY_READ_BUF_SIZE 8192 +#endif + +/* Copy whatever the last rule matched to the standard output. */ +#ifndef ECHO +/* This used to be an fputs(), but since the string might contain NUL's, + * we now use fwrite(). + */ +#define ECHO do { if (fwrite( yytext, yyleng, 1, yyout )) {} } while (0) +#endif + +/* Gets input and stuffs it into "buf". number of characters read, or YY_NULL, + * is returned in "result". + */ +#ifndef YY_INPUT +#define YY_INPUT(buf,result,max_size) \ + if ( YY_CURRENT_BUFFER_LVALUE->yy_is_interactive ) \ + { \ + int c = '*'; \ + size_t n; \ + for ( n = 0; n < max_size && \ + (c = getc( yyin )) != EOF && c != '\n'; ++n ) \ + buf[n] = (char) c; \ + if ( c == '\n' ) \ + buf[n++] = (char) c; \ + if ( c == EOF && ferror( yyin ) ) \ + YY_FATAL_ERROR( "input in flex scanner failed" ); \ + result = n; \ + } \ + else \ + { \ + errno=0; \ + while ( (result = fread(buf, 1, max_size, yyin))==0 && ferror(yyin)) \ + { \ + if( errno != EINTR) \ + { \ + YY_FATAL_ERROR( "input in flex scanner failed" ); \ + break; \ + } \ + errno=0; \ + clearerr(yyin); \ + } \ + }\ +\ + +#endif + +/* No semi-colon after return; correct usage is to write "yyterminate();" - + * we don't want an extra ';' after the "return" because that will cause + * some compilers to complain about unreachable statements. + */ +#ifndef yyterminate +#define yyterminate() return YY_NULL +#endif + +/* Number of entries by which start-condition stack grows. */ +#ifndef YY_START_STACK_INCR +#define YY_START_STACK_INCR 25 +#endif + +/* Report a fatal error. */ +#ifndef YY_FATAL_ERROR +#define YY_FATAL_ERROR(msg) yy_fatal_error( msg , yyscanner) +#endif + +/* end tables serialization structures and prototypes */ + +/* Default declaration of generated scanner - a define so the user can + * easily add parameters. + */ +#ifndef YY_DECL +#define YY_DECL_IS_OURS 1 + +extern int vt100_parser_yylex (yyscan_t yyscanner); + +#define YY_DECL int vt100_parser_yylex (yyscan_t yyscanner) +#endif /* !YY_DECL */ + +/* Code executed at the beginning of each rule, after yytext and yyleng + * have been set up. + */ +#ifndef YY_USER_ACTION +#define YY_USER_ACTION +#endif + +/* Code executed at the end of each rule. */ +#ifndef YY_BREAK +#define YY_BREAK break; +#endif + +#define YY_RULE_SETUP \ + YY_USER_ACTION + +/** The main scanner function which does all the work. + */ +YY_DECL +{ + register yy_state_type yy_current_state; + register char *yy_cp, *yy_bp; + register int yy_act; + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + + if ( !yyg->yy_init ) + { + yyg->yy_init = 1; + +#ifdef YY_USER_INIT + YY_USER_INIT; +#endif + + if ( ! yyg->yy_start ) + yyg->yy_start = 1; /* first start state */ + + if ( ! yyin ) + yyin = stdin; + + if ( ! yyout ) + yyout = stdout; + + if ( ! YY_CURRENT_BUFFER ) { + vt100_parser_yyensure_buffer_stack (yyscanner); + YY_CURRENT_BUFFER_LVALUE = + vt100_parser_yy_create_buffer(yyin,YY_BUF_SIZE ,yyscanner); + } + + vt100_parser_yy_load_buffer_state(yyscanner ); + } + + { +#line 122 "src/parser.l" + + +#line 919 "src/parser.c" + + while ( 1 ) /* loops until end-of-file is reached */ + { + yy_cp = yyg->yy_c_buf_p; + + /* Support of yytext. */ + *yy_cp = yyg->yy_hold_char; + + /* yy_bp points to the position in yy_ch_buf of the start of + * the current run. + */ + yy_bp = yy_cp; + + yy_current_state = yyg->yy_start; +yy_match: + do + { + register YY_CHAR yy_c = yy_ec[YY_SC_TO_UI(*yy_cp)] ; + if ( yy_accept[yy_current_state] ) + { + yyg->yy_last_accepting_state = yy_current_state; + yyg->yy_last_accepting_cpos = yy_cp; + } + while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state ) + { + yy_current_state = (int) yy_def[yy_current_state]; + if ( yy_current_state >= 149 ) + yy_c = yy_meta[(unsigned int) yy_c]; + } + yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c]; + ++yy_cp; + } + while ( yy_current_state != 148 ); + yy_cp = yyg->yy_last_accepting_cpos; + yy_current_state = yyg->yy_last_accepting_state; + +yy_find_action: + yy_act = yy_accept[yy_current_state]; + + YY_DO_BEFORE_ACTION; + +do_action: /* This label is used only to access EOF actions. */ + + switch ( yy_act ) + { /* beginning of action switch */ + case 0: /* must back up */ + /* undo the effects of YY_DO_BEFORE_ACTION */ + *yy_cp = yyg->yy_hold_char; + yy_cp = yyg->yy_last_accepting_cpos; + yy_current_state = yyg->yy_last_accepting_state; + goto yy_find_action; + +case 1: +YY_RULE_SETUP +#line 124 "src/parser.l" +vt100_parser_handle_bel(yyextra); + YY_BREAK +case 2: +YY_RULE_SETUP +#line 125 "src/parser.l" +vt100_parser_handle_bs(yyextra); + YY_BREAK +case 3: +YY_RULE_SETUP +#line 126 "src/parser.l" +vt100_parser_handle_tab(yyextra); + YY_BREAK +case 4: +/* rule 4 can match eol */ +#line 128 "src/parser.l" +case 5: +/* rule 5 can match eol */ +#line 129 "src/parser.l" +case 6: +/* rule 6 can match eol */ +YY_RULE_SETUP +#line 129 "src/parser.l" +vt100_parser_handle_lf(yyextra); + YY_BREAK +case 7: +YY_RULE_SETUP +#line 130 "src/parser.l" +vt100_parser_handle_cr(yyextra); + YY_BREAK +case 8: +YY_RULE_SETUP +#line 131 "src/parser.l" + + YY_BREAK +case 9: +YY_RULE_SETUP +#line 133 "src/parser.l" +vt100_parser_handle_deckpam(yyextra); + YY_BREAK +case 10: +YY_RULE_SETUP +#line 134 "src/parser.l" +vt100_parser_handle_deckpnm(yyextra); + YY_BREAK +case 11: +YY_RULE_SETUP +#line 135 "src/parser.l" +vt100_parser_handle_ri(yyextra); + YY_BREAK +case 12: +YY_RULE_SETUP +#line 136 "src/parser.l" +vt100_parser_handle_ris(yyextra); + YY_BREAK +case 13: +YY_RULE_SETUP +#line 137 "src/parser.l" +vt100_parser_handle_vb(yyextra); + YY_BREAK +case 14: +YY_RULE_SETUP +#line 138 "src/parser.l" +vt100_parser_handle_decsc(yyextra); + YY_BREAK +case 15: +YY_RULE_SETUP +#line 139 "src/parser.l" +vt100_parser_handle_decrc(yyextra); + YY_BREAK +case 16: +YY_RULE_SETUP +#line 141 "src/parser.l" +vt100_parser_handle_ich(yyextra, yytext, yyleng); + YY_BREAK +case 17: +YY_RULE_SETUP +#line 142 "src/parser.l" +vt100_parser_handle_cuu(yyextra, yytext, yyleng); + YY_BREAK +case 18: +YY_RULE_SETUP +#line 143 "src/parser.l" +vt100_parser_handle_cud(yyextra, yytext, yyleng); + YY_BREAK +case 19: +YY_RULE_SETUP +#line 144 "src/parser.l" +vt100_parser_handle_cuf(yyextra, yytext, yyleng); + YY_BREAK +case 20: +YY_RULE_SETUP +#line 145 "src/parser.l" +vt100_parser_handle_cub(yyextra, yytext, yyleng); + YY_BREAK +case 21: +YY_RULE_SETUP +#line 146 "src/parser.l" +vt100_parser_handle_cup(yyextra, yytext, yyleng); + YY_BREAK +case 22: +YY_RULE_SETUP +#line 147 "src/parser.l" +vt100_parser_handle_ed(yyextra, yytext, yyleng); + YY_BREAK +case 23: +YY_RULE_SETUP +#line 148 "src/parser.l" +vt100_parser_handle_el(yyextra, yytext, yyleng); + YY_BREAK +case 24: +YY_RULE_SETUP +#line 149 "src/parser.l" +vt100_parser_handle_il(yyextra, yytext, yyleng); + YY_BREAK +case 25: +YY_RULE_SETUP +#line 150 "src/parser.l" +vt100_parser_handle_dl(yyextra, yytext, yyleng); + YY_BREAK +case 26: +YY_RULE_SETUP +#line 151 "src/parser.l" +vt100_parser_handle_dch(yyextra, yytext, yyleng); + YY_BREAK +case 27: +YY_RULE_SETUP +#line 152 "src/parser.l" +vt100_parser_handle_sm(yyextra, yytext, yyleng); + YY_BREAK +case 28: +YY_RULE_SETUP +#line 153 "src/parser.l" +vt100_parser_handle_rm(yyextra, yytext, yyleng); + YY_BREAK +case 29: +YY_RULE_SETUP +#line 154 "src/parser.l" +vt100_parser_handle_sgr(yyextra, yytext, yyleng); + YY_BREAK +case 30: +YY_RULE_SETUP +#line 155 "src/parser.l" +vt100_parser_handle_csr(yyextra, yytext, yyleng); + YY_BREAK +case 31: +YY_RULE_SETUP +#line 157 "src/parser.l" +vt100_parser_handle_decsed(yyextra, yytext, yyleng); + YY_BREAK +case 32: +YY_RULE_SETUP +#line 158 "src/parser.l" +vt100_parser_handle_decsel(yyextra, yytext, yyleng); + YY_BREAK +case 33: +YY_RULE_SETUP +#line 160 "src/parser.l" +vt100_parser_handle_osc0(yyextra, yytext, yyleng); + YY_BREAK +case 34: +YY_RULE_SETUP +#line 161 "src/parser.l" +vt100_parser_handle_osc1(yyextra, yytext, yyleng); + YY_BREAK +case 35: +YY_RULE_SETUP +#line 162 "src/parser.l" +vt100_parser_handle_osc2(yyextra, yytext, yyleng); + YY_BREAK +case 36: +#line 165 "src/parser.l" +case 37: +#line 166 "src/parser.l" +case 38: +#line 167 "src/parser.l" +case 39: +YY_RULE_SETUP +#line 167 "src/parser.l" + + YY_BREAK +case 40: +YY_RULE_SETUP +#line 169 "src/parser.l" +vt100_parser_handle_ascii(yyextra, yytext, yyleng); + YY_BREAK +case 41: +YY_RULE_SETUP +#line 170 "src/parser.l" +vt100_parser_handle_text(yyextra, yytext, yyleng); + YY_BREAK +case 42: +#line 173 "src/parser.l" +case 43: +#line 174 "src/parser.l" +case 44: +#line 175 "src/parser.l" +case 45: +#line 176 "src/parser.l" +case 46: +#line 177 "src/parser.l" +case 47: +#line 178 "src/parser.l" +case 48: +YY_RULE_SETUP +#line 178 "src/parser.l" +return yyleng; + YY_BREAK +case YY_STATE_EOF(INITIAL): +#line 180 "src/parser.l" +return 0; + YY_BREAK +case 49: +/* rule 49 can match eol */ +YY_RULE_SETUP +#line 182 "src/parser.l" +{ + fprintf(stderr, + "unhandled CSI sequence: \\033%*s\\%hho\n", + (int)yyleng - 2, yytext + 1, yytext[yyleng - 1]); +} + YY_BREAK +case 50: +YY_RULE_SETUP +#line 188 "src/parser.l" +{ + fprintf(stderr, + "unhandled CSI sequence: \\033%*s\n", + (int)yyleng - 1, yytext + 1); +} + YY_BREAK +case 51: +/* rule 51 can match eol */ +YY_RULE_SETUP +#line 194 "src/parser.l" +{ + fprintf(stderr, + "unhandled OSC sequence: \\033%*s\\%hho\n", + (int)yyleng - 2, yytext + 1, yytext[yyleng - 1]); +} + YY_BREAK +case 52: +YY_RULE_SETUP +#line 200 "src/parser.l" +{ + fprintf(stderr, + "unhandled OSC sequence: \\033%*s\n", + (int)yyleng - 1, yytext + 1); +} + YY_BREAK +case 53: +/* rule 53 can match eol */ +YY_RULE_SETUP +#line 206 "src/parser.l" +{ + fprintf(stderr, "unhandled escape sequence: \\%hho\n", yytext[1]); +} + YY_BREAK +case 54: +YY_RULE_SETUP +#line 210 "src/parser.l" +{ + fprintf(stderr, + "unhandled escape sequence: %*s\n", + (int)yyleng - 1, yytext + 1); +} + YY_BREAK +case 55: +/* rule 55 can match eol */ +YY_RULE_SETUP +#line 216 "src/parser.l" +{ + fprintf(stderr, "unhandled control character: \\%hho\n", yytext[0]); +} + YY_BREAK +case 56: +YY_RULE_SETUP +#line 220 "src/parser.l" +{ + fprintf(stderr, "invalid utf8 byte: \\%hho\n", yytext[0]); +} + YY_BREAK +case 57: +YY_RULE_SETUP +#line 224 "src/parser.l" +YY_FATAL_ERROR( "flex scanner jammed" ); + YY_BREAK +#line 1261 "src/parser.c" + + case YY_END_OF_BUFFER: + { + /* Amount of text matched not including the EOB char. */ + int yy_amount_of_matched_text = (int) (yy_cp - yyg->yytext_ptr) - 1; + + /* Undo the effects of YY_DO_BEFORE_ACTION. */ + *yy_cp = yyg->yy_hold_char; + YY_RESTORE_YY_MORE_OFFSET + + if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_NEW ) + { + /* We're scanning a new file or input source. It's + * possible that this happened because the user + * just pointed yyin at a new source and called + * vt100_parser_yylex(). If so, then we have to assure + * consistency between YY_CURRENT_BUFFER and our + * globals. Here is the right place to do so, because + * this is the first action (other than possibly a + * back-up) that will match for the new input source. + */ + yyg->yy_n_chars = YY_CURRENT_BUFFER_LVALUE->yy_n_chars; + YY_CURRENT_BUFFER_LVALUE->yy_input_file = yyin; + YY_CURRENT_BUFFER_LVALUE->yy_buffer_status = YY_BUFFER_NORMAL; + } + + /* Note that here we test for yy_c_buf_p "<=" to the position + * of the first EOB in the buffer, since yy_c_buf_p will + * already have been incremented past the NUL character + * (since all states make transitions on EOB to the + * end-of-buffer state). Contrast this with the test + * in input(). + */ + if ( yyg->yy_c_buf_p <= &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[yyg->yy_n_chars] ) + { /* This was really a NUL. */ + yy_state_type yy_next_state; + + yyg->yy_c_buf_p = yyg->yytext_ptr + yy_amount_of_matched_text; + + yy_current_state = yy_get_previous_state( yyscanner ); + + /* Okay, we're now positioned to make the NUL + * transition. We couldn't have + * yy_get_previous_state() go ahead and do it + * for us because it doesn't know how to deal + * with the possibility of jamming (and we don't + * want to build jamming into it because then it + * will run more slowly). + */ + + yy_next_state = yy_try_NUL_trans( yy_current_state , yyscanner); + + yy_bp = yyg->yytext_ptr + YY_MORE_ADJ; + + if ( yy_next_state ) + { + /* Consume the NUL. */ + yy_cp = ++yyg->yy_c_buf_p; + yy_current_state = yy_next_state; + goto yy_match; + } + + else + { + yy_cp = yyg->yy_last_accepting_cpos; + yy_current_state = yyg->yy_last_accepting_state; + goto yy_find_action; + } + } + + else switch ( yy_get_next_buffer( yyscanner ) ) + { + case EOB_ACT_END_OF_FILE: + { + yyg->yy_did_buffer_switch_on_eof = 0; + + if ( vt100_parser_yywrap(yyscanner ) ) + { + /* Note: because we've taken care in + * yy_get_next_buffer() to have set up + * yytext, we can now set up + * yy_c_buf_p so that if some total + * hoser (like flex itself) wants to + * call the scanner after we return the + * YY_NULL, it'll still work - another + * YY_NULL will get returned. + */ + yyg->yy_c_buf_p = yyg->yytext_ptr + YY_MORE_ADJ; + + yy_act = YY_STATE_EOF(YY_START); + goto do_action; + } + + else + { + if ( ! yyg->yy_did_buffer_switch_on_eof ) + YY_NEW_FILE; + } + break; + } + + case EOB_ACT_CONTINUE_SCAN: + yyg->yy_c_buf_p = + yyg->yytext_ptr + yy_amount_of_matched_text; + + yy_current_state = yy_get_previous_state( yyscanner ); + + yy_cp = yyg->yy_c_buf_p; + yy_bp = yyg->yytext_ptr + YY_MORE_ADJ; + goto yy_match; + + case EOB_ACT_LAST_MATCH: + yyg->yy_c_buf_p = + &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[yyg->yy_n_chars]; + + yy_current_state = yy_get_previous_state( yyscanner ); + + yy_cp = yyg->yy_c_buf_p; + yy_bp = yyg->yytext_ptr + YY_MORE_ADJ; + goto yy_find_action; + } + break; + } + + default: + YY_FATAL_ERROR( + "fatal flex scanner internal error--no action found" ); + } /* end of action switch */ + } /* end of scanning one token */ + } /* end of user's declarations */ +} /* end of vt100_parser_yylex */ + +/* yy_get_next_buffer - try to read in a new buffer + * + * Returns a code representing an action: + * EOB_ACT_LAST_MATCH - + * EOB_ACT_CONTINUE_SCAN - continue scanning from current position + * EOB_ACT_END_OF_FILE - end of file + */ +static int yy_get_next_buffer (yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + register char *dest = YY_CURRENT_BUFFER_LVALUE->yy_ch_buf; + register char *source = yyg->yytext_ptr; + register int number_to_move, i; + int ret_val; + + if ( yyg->yy_c_buf_p > &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[yyg->yy_n_chars + 1] ) + YY_FATAL_ERROR( + "fatal flex scanner internal error--end of buffer missed" ); + + if ( YY_CURRENT_BUFFER_LVALUE->yy_fill_buffer == 0 ) + { /* Don't try to fill the buffer, so this is an EOF. */ + if ( yyg->yy_c_buf_p - yyg->yytext_ptr - YY_MORE_ADJ == 1 ) + { + /* We matched a single character, the EOB, so + * treat this as a final EOF. + */ + return EOB_ACT_END_OF_FILE; + } + + else + { + /* We matched some text prior to the EOB, first + * process it. + */ + return EOB_ACT_LAST_MATCH; + } + } + + /* Try to read more data. */ + + /* First move last chars to start of buffer. */ + number_to_move = (int) (yyg->yy_c_buf_p - yyg->yytext_ptr) - 1; + + for ( i = 0; i < number_to_move; ++i ) + *(dest++) = *(source++); + + if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_EOF_PENDING ) + /* don't do the read, it's not guaranteed to return an EOF, + * just force an EOF + */ + YY_CURRENT_BUFFER_LVALUE->yy_n_chars = yyg->yy_n_chars = 0; + + else + { + yy_size_t num_to_read = + YY_CURRENT_BUFFER_LVALUE->yy_buf_size - number_to_move - 1; + + while ( num_to_read <= 0 ) + { /* Not enough room in the buffer - grow it. */ + + /* just a shorter name for the current buffer */ + YY_BUFFER_STATE b = YY_CURRENT_BUFFER_LVALUE; + + int yy_c_buf_p_offset = + (int) (yyg->yy_c_buf_p - b->yy_ch_buf); + + if ( b->yy_is_our_buffer ) + { + yy_size_t new_size = b->yy_buf_size * 2; + + if ( new_size <= 0 ) + b->yy_buf_size += b->yy_buf_size / 8; + else + b->yy_buf_size *= 2; + + b->yy_ch_buf = (char *) + /* Include room in for 2 EOB chars. */ + vt100_parser_yyrealloc((void *) b->yy_ch_buf,b->yy_buf_size + 2 ,yyscanner ); + } + else + /* Can't grow it, we don't own it. */ + b->yy_ch_buf = 0; + + if ( ! b->yy_ch_buf ) + YY_FATAL_ERROR( + "fatal error - scanner input buffer overflow" ); + + yyg->yy_c_buf_p = &b->yy_ch_buf[yy_c_buf_p_offset]; + + num_to_read = YY_CURRENT_BUFFER_LVALUE->yy_buf_size - + number_to_move - 1; + + } + + if ( num_to_read > YY_READ_BUF_SIZE ) + num_to_read = YY_READ_BUF_SIZE; + + /* Read in more data. */ + YY_INPUT( (&YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[number_to_move]), + yyg->yy_n_chars, num_to_read ); + + YY_CURRENT_BUFFER_LVALUE->yy_n_chars = yyg->yy_n_chars; + } + + if ( yyg->yy_n_chars == 0 ) + { + if ( number_to_move == YY_MORE_ADJ ) + { + ret_val = EOB_ACT_END_OF_FILE; + vt100_parser_yyrestart(yyin ,yyscanner); + } + + else + { + ret_val = EOB_ACT_LAST_MATCH; + YY_CURRENT_BUFFER_LVALUE->yy_buffer_status = + YY_BUFFER_EOF_PENDING; + } + } + + else + ret_val = EOB_ACT_CONTINUE_SCAN; + + if ((yy_size_t) (yyg->yy_n_chars + number_to_move) > YY_CURRENT_BUFFER_LVALUE->yy_buf_size) { + /* Extend the array by 50%, plus the number we really need. */ + yy_size_t new_size = yyg->yy_n_chars + number_to_move + (yyg->yy_n_chars >> 1); + YY_CURRENT_BUFFER_LVALUE->yy_ch_buf = (char *) vt100_parser_yyrealloc((void *) YY_CURRENT_BUFFER_LVALUE->yy_ch_buf,new_size ,yyscanner ); + if ( ! YY_CURRENT_BUFFER_LVALUE->yy_ch_buf ) + YY_FATAL_ERROR( "out of dynamic memory in yy_get_next_buffer()" ); + } + + yyg->yy_n_chars += number_to_move; + YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[yyg->yy_n_chars] = YY_END_OF_BUFFER_CHAR; + YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[yyg->yy_n_chars + 1] = YY_END_OF_BUFFER_CHAR; + + yyg->yytext_ptr = &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[0]; + + return ret_val; +} + +/* yy_get_previous_state - get the state just before the EOB char was reached */ + + static yy_state_type yy_get_previous_state (yyscan_t yyscanner) +{ + register yy_state_type yy_current_state; + register char *yy_cp; + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + + yy_current_state = yyg->yy_start; + + for ( yy_cp = yyg->yytext_ptr + YY_MORE_ADJ; yy_cp < yyg->yy_c_buf_p; ++yy_cp ) + { + register YY_CHAR yy_c = (*yy_cp ? yy_ec[YY_SC_TO_UI(*yy_cp)] : 1); + if ( yy_accept[yy_current_state] ) + { + yyg->yy_last_accepting_state = yy_current_state; + yyg->yy_last_accepting_cpos = yy_cp; + } + while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state ) + { + yy_current_state = (int) yy_def[yy_current_state]; + if ( yy_current_state >= 149 ) + yy_c = yy_meta[(unsigned int) yy_c]; + } + yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c]; + } + + return yy_current_state; +} + +/* yy_try_NUL_trans - try to make a transition on the NUL character + * + * synopsis + * next_state = yy_try_NUL_trans( current_state ); + */ + static yy_state_type yy_try_NUL_trans (yy_state_type yy_current_state , yyscan_t yyscanner) +{ + register int yy_is_jam; + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; /* This var may be unused depending upon options. */ + register char *yy_cp = yyg->yy_c_buf_p; + + register YY_CHAR yy_c = 1; + if ( yy_accept[yy_current_state] ) + { + yyg->yy_last_accepting_state = yy_current_state; + yyg->yy_last_accepting_cpos = yy_cp; + } + while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state ) + { + yy_current_state = (int) yy_def[yy_current_state]; + if ( yy_current_state >= 149 ) + yy_c = yy_meta[(unsigned int) yy_c]; + } + yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c]; + yy_is_jam = (yy_current_state == 148); + + (void)yyg; + return yy_is_jam ? 0 : yy_current_state; +} + +#ifndef YY_NO_INPUT +#ifdef __cplusplus + static int yyinput (yyscan_t yyscanner) +#else + static int input (yyscan_t yyscanner) +#endif + +{ + int c; + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + + *yyg->yy_c_buf_p = yyg->yy_hold_char; + + if ( *yyg->yy_c_buf_p == YY_END_OF_BUFFER_CHAR ) + { + /* yy_c_buf_p now points to the character we want to return. + * If this occurs *before* the EOB characters, then it's a + * valid NUL; if not, then we've hit the end of the buffer. + */ + if ( yyg->yy_c_buf_p < &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[yyg->yy_n_chars] ) + /* This was really a NUL. */ + *yyg->yy_c_buf_p = '\0'; + + else + { /* need more input */ + yy_size_t offset = yyg->yy_c_buf_p - yyg->yytext_ptr; + ++yyg->yy_c_buf_p; + + switch ( yy_get_next_buffer( yyscanner ) ) + { + case EOB_ACT_LAST_MATCH: + /* This happens because yy_g_n_b() + * sees that we've accumulated a + * token and flags that we need to + * try matching the token before + * proceeding. But for input(), + * there's no matching to consider. + * So convert the EOB_ACT_LAST_MATCH + * to EOB_ACT_END_OF_FILE. + */ + + /* Reset buffer status. */ + vt100_parser_yyrestart(yyin ,yyscanner); + + /*FALLTHROUGH*/ + + case EOB_ACT_END_OF_FILE: + { + if ( vt100_parser_yywrap(yyscanner ) ) + return EOF; + + if ( ! yyg->yy_did_buffer_switch_on_eof ) + YY_NEW_FILE; +#ifdef __cplusplus + return yyinput(yyscanner); +#else + return input(yyscanner); +#endif + } + + case EOB_ACT_CONTINUE_SCAN: + yyg->yy_c_buf_p = yyg->yytext_ptr + offset; + break; + } + } + } + + c = *(unsigned char *) yyg->yy_c_buf_p; /* cast for 8-bit char's */ + *yyg->yy_c_buf_p = '\0'; /* preserve yytext */ + yyg->yy_hold_char = *++yyg->yy_c_buf_p; + + return c; +} +#endif /* ifndef YY_NO_INPUT */ + +/** Immediately switch to a different input stream. + * @param input_file A readable stream. + * @param yyscanner The scanner object. + * @note This function does not reset the start condition to @c INITIAL . + */ + void vt100_parser_yyrestart (FILE * input_file , yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + + if ( ! YY_CURRENT_BUFFER ){ + vt100_parser_yyensure_buffer_stack (yyscanner); + YY_CURRENT_BUFFER_LVALUE = + vt100_parser_yy_create_buffer(yyin,YY_BUF_SIZE ,yyscanner); + } + + vt100_parser_yy_init_buffer(YY_CURRENT_BUFFER,input_file ,yyscanner); + vt100_parser_yy_load_buffer_state(yyscanner ); +} + +/** Switch to a different input buffer. + * @param new_buffer The new input buffer. + * @param yyscanner The scanner object. + */ + void vt100_parser_yy_switch_to_buffer (YY_BUFFER_STATE new_buffer , yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + + /* TODO. We should be able to replace this entire function body + * with + * vt100_parser_yypop_buffer_state(); + * vt100_parser_yypush_buffer_state(new_buffer); + */ + vt100_parser_yyensure_buffer_stack (yyscanner); + if ( YY_CURRENT_BUFFER == new_buffer ) + return; + + if ( YY_CURRENT_BUFFER ) + { + /* Flush out information for old buffer. */ + *yyg->yy_c_buf_p = yyg->yy_hold_char; + YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = yyg->yy_c_buf_p; + YY_CURRENT_BUFFER_LVALUE->yy_n_chars = yyg->yy_n_chars; + } + + YY_CURRENT_BUFFER_LVALUE = new_buffer; + vt100_parser_yy_load_buffer_state(yyscanner ); + + /* We don't actually know whether we did this switch during + * EOF (vt100_parser_yywrap()) processing, but the only time this flag + * is looked at is after vt100_parser_yywrap() is called, so it's safe + * to go ahead and always set it. + */ + yyg->yy_did_buffer_switch_on_eof = 1; +} + +static void vt100_parser_yy_load_buffer_state (yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + yyg->yy_n_chars = YY_CURRENT_BUFFER_LVALUE->yy_n_chars; + yyg->yytext_ptr = yyg->yy_c_buf_p = YY_CURRENT_BUFFER_LVALUE->yy_buf_pos; + yyin = YY_CURRENT_BUFFER_LVALUE->yy_input_file; + yyg->yy_hold_char = *yyg->yy_c_buf_p; +} + +/** Allocate and initialize an input buffer state. + * @param file A readable stream. + * @param size The character buffer size in bytes. When in doubt, use @c YY_BUF_SIZE. + * @param yyscanner The scanner object. + * @return the allocated buffer state. + */ + YY_BUFFER_STATE vt100_parser_yy_create_buffer (FILE * file, int size , yyscan_t yyscanner) +{ + YY_BUFFER_STATE b; + + b = (YY_BUFFER_STATE) vt100_parser_yyalloc(sizeof( struct yy_buffer_state ) ,yyscanner ); + if ( ! b ) + YY_FATAL_ERROR( "out of dynamic memory in vt100_parser_yy_create_buffer()" ); + + b->yy_buf_size = size; + + /* yy_ch_buf has to be 2 characters longer than the size given because + * we need to put in 2 end-of-buffer characters. + */ + b->yy_ch_buf = (char *) vt100_parser_yyalloc(b->yy_buf_size + 2 ,yyscanner ); + if ( ! b->yy_ch_buf ) + YY_FATAL_ERROR( "out of dynamic memory in vt100_parser_yy_create_buffer()" ); + + b->yy_is_our_buffer = 1; + + vt100_parser_yy_init_buffer(b,file ,yyscanner); + + return b; +} + +/** Destroy the buffer. + * @param b a buffer created with vt100_parser_yy_create_buffer() + * @param yyscanner The scanner object. + */ + void vt100_parser_yy_delete_buffer (YY_BUFFER_STATE b , yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + + if ( ! b ) + return; + + if ( b == YY_CURRENT_BUFFER ) /* Not sure if we should pop here. */ + YY_CURRENT_BUFFER_LVALUE = (YY_BUFFER_STATE) 0; + + if ( b->yy_is_our_buffer ) + vt100_parser_yyfree((void *) b->yy_ch_buf ,yyscanner ); + + vt100_parser_yyfree((void *) b ,yyscanner ); +} + +/* Initializes or reinitializes a buffer. + * This function is sometimes called more than once on the same buffer, + * such as during a vt100_parser_yyrestart() or at EOF. + */ + static void vt100_parser_yy_init_buffer (YY_BUFFER_STATE b, FILE * file , yyscan_t yyscanner) + +{ + int oerrno = errno; + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + + vt100_parser_yy_flush_buffer(b ,yyscanner); + + b->yy_input_file = file; + b->yy_fill_buffer = 1; + + /* If b is the current buffer, then vt100_parser_yy_init_buffer was _probably_ + * called from vt100_parser_yyrestart() or through yy_get_next_buffer. + * In that case, we don't want to reset the lineno or column. + */ + if (b != YY_CURRENT_BUFFER){ + b->yy_bs_lineno = 1; + b->yy_bs_column = 0; + } + + b->yy_is_interactive = file ? (isatty( fileno(file) ) > 0) : 0; + + errno = oerrno; +} + +/** Discard all buffered characters. On the next scan, YY_INPUT will be called. + * @param b the buffer state to be flushed, usually @c YY_CURRENT_BUFFER. + * @param yyscanner The scanner object. + */ + void vt100_parser_yy_flush_buffer (YY_BUFFER_STATE b , yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + if ( ! b ) + return; + + b->yy_n_chars = 0; + + /* We always need two end-of-buffer characters. The first causes + * a transition to the end-of-buffer state. The second causes + * a jam in that state. + */ + b->yy_ch_buf[0] = YY_END_OF_BUFFER_CHAR; + b->yy_ch_buf[1] = YY_END_OF_BUFFER_CHAR; + + b->yy_buf_pos = &b->yy_ch_buf[0]; + + b->yy_at_bol = 1; + b->yy_buffer_status = YY_BUFFER_NEW; + + if ( b == YY_CURRENT_BUFFER ) + vt100_parser_yy_load_buffer_state(yyscanner ); +} + +/** Pushes the new state onto the stack. The new state becomes + * the current state. This function will allocate the stack + * if necessary. + * @param new_buffer The new state. + * @param yyscanner The scanner object. + */ +void vt100_parser_yypush_buffer_state (YY_BUFFER_STATE new_buffer , yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + if (new_buffer == NULL) + return; + + vt100_parser_yyensure_buffer_stack(yyscanner); + + /* This block is copied from vt100_parser_yy_switch_to_buffer. */ + if ( YY_CURRENT_BUFFER ) + { + /* Flush out information for old buffer. */ + *yyg->yy_c_buf_p = yyg->yy_hold_char; + YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = yyg->yy_c_buf_p; + YY_CURRENT_BUFFER_LVALUE->yy_n_chars = yyg->yy_n_chars; + } + + /* Only push if top exists. Otherwise, replace top. */ + if (YY_CURRENT_BUFFER) + yyg->yy_buffer_stack_top++; + YY_CURRENT_BUFFER_LVALUE = new_buffer; + + /* copied from vt100_parser_yy_switch_to_buffer. */ + vt100_parser_yy_load_buffer_state(yyscanner ); + yyg->yy_did_buffer_switch_on_eof = 1; +} + +/** Removes and deletes the top of the stack, if present. + * The next element becomes the new top. + * @param yyscanner The scanner object. + */ +void vt100_parser_yypop_buffer_state (yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + if (!YY_CURRENT_BUFFER) + return; + + vt100_parser_yy_delete_buffer(YY_CURRENT_BUFFER ,yyscanner); + YY_CURRENT_BUFFER_LVALUE = NULL; + if (yyg->yy_buffer_stack_top > 0) + --yyg->yy_buffer_stack_top; + + if (YY_CURRENT_BUFFER) { + vt100_parser_yy_load_buffer_state(yyscanner ); + yyg->yy_did_buffer_switch_on_eof = 1; + } +} + +/* Allocates the stack if it does not exist. + * Guarantees space for at least one push. + */ +static void vt100_parser_yyensure_buffer_stack (yyscan_t yyscanner) +{ + yy_size_t num_to_alloc; + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + + if (!yyg->yy_buffer_stack) { + + /* First allocation is just for 2 elements, since we don't know if this + * scanner will even need a stack. We use 2 instead of 1 to avoid an + * immediate realloc on the next call. + */ + num_to_alloc = 1; + yyg->yy_buffer_stack = (struct yy_buffer_state**)vt100_parser_yyalloc + (num_to_alloc * sizeof(struct yy_buffer_state*) + , yyscanner); + if ( ! yyg->yy_buffer_stack ) + YY_FATAL_ERROR( "out of dynamic memory in vt100_parser_yyensure_buffer_stack()" ); + + memset(yyg->yy_buffer_stack, 0, num_to_alloc * sizeof(struct yy_buffer_state*)); + + yyg->yy_buffer_stack_max = num_to_alloc; + yyg->yy_buffer_stack_top = 0; + return; + } + + if (yyg->yy_buffer_stack_top >= (yyg->yy_buffer_stack_max) - 1){ + + /* Increase the buffer to prepare for a possible push. */ + int grow_size = 8 /* arbitrary grow size */; + + num_to_alloc = yyg->yy_buffer_stack_max + grow_size; + yyg->yy_buffer_stack = (struct yy_buffer_state**)vt100_parser_yyrealloc + (yyg->yy_buffer_stack, + num_to_alloc * sizeof(struct yy_buffer_state*) + , yyscanner); + if ( ! yyg->yy_buffer_stack ) + YY_FATAL_ERROR( "out of dynamic memory in vt100_parser_yyensure_buffer_stack()" ); + + /* zero only the new slots.*/ + memset(yyg->yy_buffer_stack + yyg->yy_buffer_stack_max, 0, grow_size * sizeof(struct yy_buffer_state*)); + yyg->yy_buffer_stack_max = num_to_alloc; + } +} + +/** Setup the input buffer state to scan directly from a user-specified character buffer. + * @param base the character buffer + * @param size the size in bytes of the character buffer + * @param yyscanner The scanner object. + * @return the newly allocated buffer state object. + */ +YY_BUFFER_STATE vt100_parser_yy_scan_buffer (char * base, yy_size_t size , yyscan_t yyscanner) +{ + YY_BUFFER_STATE b; + + if ( size < 2 || + base[size-2] != YY_END_OF_BUFFER_CHAR || + base[size-1] != YY_END_OF_BUFFER_CHAR ) + /* They forgot to leave room for the EOB's. */ + return 0; + + b = (YY_BUFFER_STATE) vt100_parser_yyalloc(sizeof( struct yy_buffer_state ) ,yyscanner ); + if ( ! b ) + YY_FATAL_ERROR( "out of dynamic memory in vt100_parser_yy_scan_buffer()" ); + + b->yy_buf_size = size - 2; /* "- 2" to take care of EOB's */ + b->yy_buf_pos = b->yy_ch_buf = base; + b->yy_is_our_buffer = 0; + b->yy_input_file = 0; + b->yy_n_chars = b->yy_buf_size; + b->yy_is_interactive = 0; + b->yy_at_bol = 1; + b->yy_fill_buffer = 0; + b->yy_buffer_status = YY_BUFFER_NEW; + + vt100_parser_yy_switch_to_buffer(b ,yyscanner ); + + return b; +} + +/** Setup the input buffer state to scan a string. The next call to vt100_parser_yylex() will + * scan from a @e copy of @a str. + * @param yystr a NUL-terminated string to scan + * @param yyscanner The scanner object. + * @return the newly allocated buffer state object. + * @note If you want to scan bytes that may contain NUL values, then use + * vt100_parser_yy_scan_bytes() instead. + */ +YY_BUFFER_STATE vt100_parser_yy_scan_string (yyconst char * yystr , yyscan_t yyscanner) +{ + + return vt100_parser_yy_scan_bytes(yystr,strlen(yystr) ,yyscanner); +} + +/** Setup the input buffer state to scan the given bytes. The next call to vt100_parser_yylex() will + * scan from a @e copy of @a bytes. + * @param yybytes the byte buffer to scan + * @param _yybytes_len the number of bytes in the buffer pointed to by @a bytes. + * @param yyscanner The scanner object. + * @return the newly allocated buffer state object. + */ +YY_BUFFER_STATE vt100_parser_yy_scan_bytes (yyconst char * yybytes, yy_size_t _yybytes_len , yyscan_t yyscanner) +{ + YY_BUFFER_STATE b; + char *buf; + yy_size_t n; + yy_size_t i; + + /* Get memory for full buffer, including space for trailing EOB's. */ + n = _yybytes_len + 2; + buf = (char *) vt100_parser_yyalloc(n ,yyscanner ); + if ( ! buf ) + YY_FATAL_ERROR( "out of dynamic memory in vt100_parser_yy_scan_bytes()" ); + + for ( i = 0; i < _yybytes_len; ++i ) + buf[i] = yybytes[i]; + + buf[_yybytes_len] = buf[_yybytes_len+1] = YY_END_OF_BUFFER_CHAR; + + b = vt100_parser_yy_scan_buffer(buf,n ,yyscanner); + if ( ! b ) + YY_FATAL_ERROR( "bad buffer in vt100_parser_yy_scan_bytes()" ); + + /* It's okay to grow etc. this buffer, and we should throw it + * away when we're done. + */ + b->yy_is_our_buffer = 1; + + return b; +} + +#ifndef YY_EXIT_FAILURE +#define YY_EXIT_FAILURE 2 +#endif + +static void yy_fatal_error (yyconst char* msg , yyscan_t yyscanner) +{ + (void) fprintf( stderr, "%s\n", msg ); + exit( YY_EXIT_FAILURE ); +} + +/* Redefine yyless() so it works in section 3 code. */ + +#undef yyless +#define yyless(n) \ + do \ + { \ + /* Undo effects of setting up yytext. */ \ + int yyless_macro_arg = (n); \ + YY_LESS_LINENO(yyless_macro_arg);\ + yytext[yyleng] = yyg->yy_hold_char; \ + yyg->yy_c_buf_p = yytext + yyless_macro_arg; \ + yyg->yy_hold_char = *yyg->yy_c_buf_p; \ + *yyg->yy_c_buf_p = '\0'; \ + yyleng = yyless_macro_arg; \ + } \ + while ( 0 ) + +/* Accessor methods (get/set functions) to struct members. */ + +/** Get the user-defined data for this scanner. + * @param yyscanner The scanner object. + */ +YY_EXTRA_TYPE vt100_parser_yyget_extra (yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + return yyextra; +} + +/** Get the current line number. + * @param yyscanner The scanner object. + */ +int vt100_parser_yyget_lineno (yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + + if (! YY_CURRENT_BUFFER) + return 0; + + return yylineno; +} + +/** Get the current column number. + * @param yyscanner The scanner object. + */ +int vt100_parser_yyget_column (yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + + if (! YY_CURRENT_BUFFER) + return 0; + + return yycolumn; +} + +/** Get the input stream. + * @param yyscanner The scanner object. + */ +FILE *vt100_parser_yyget_in (yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + return yyin; +} + +/** Get the output stream. + * @param yyscanner The scanner object. + */ +FILE *vt100_parser_yyget_out (yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + return yyout; +} + +/** Get the length of the current token. + * @param yyscanner The scanner object. + */ +yy_size_t vt100_parser_yyget_leng (yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + return yyleng; +} + +/** Get the current token. + * @param yyscanner The scanner object. + */ + +char *vt100_parser_yyget_text (yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + return yytext; +} + +/** Set the user-defined data. This data is never touched by the scanner. + * @param user_defined The data to be associated with this scanner. + * @param yyscanner The scanner object. + */ +void vt100_parser_yyset_extra (YY_EXTRA_TYPE user_defined , yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + yyextra = user_defined ; +} + +/** Set the current line number. + * @param line_number + * @param yyscanner The scanner object. + */ +void vt100_parser_yyset_lineno (int line_number , yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + + /* lineno is only valid if an input buffer exists. */ + if (! YY_CURRENT_BUFFER ) + YY_FATAL_ERROR( "vt100_parser_yyset_lineno called with no buffer" ); + + yylineno = line_number; +} + +/** Set the current column. + * @param line_number + * @param yyscanner The scanner object. + */ +void vt100_parser_yyset_column (int column_no , yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + + /* column is only valid if an input buffer exists. */ + if (! YY_CURRENT_BUFFER ) + YY_FATAL_ERROR( "vt100_parser_yyset_column called with no buffer" ); + + yycolumn = column_no; +} + +/** Set the input stream. This does not discard the current + * input buffer. + * @param in_str A readable stream. + * @param yyscanner The scanner object. + * @see vt100_parser_yy_switch_to_buffer + */ +void vt100_parser_yyset_in (FILE * in_str , yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + yyin = in_str ; +} + +void vt100_parser_yyset_out (FILE * out_str , yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + yyout = out_str ; +} + +int vt100_parser_yyget_debug (yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + return yy_flex_debug; +} + +void vt100_parser_yyset_debug (int bdebug , yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + yy_flex_debug = bdebug ; +} + +/* Accessor methods for yylval and yylloc */ + +/* User-visible API */ + +/* vt100_parser_yylex_init is special because it creates the scanner itself, so it is + * the ONLY reentrant function that doesn't take the scanner as the last argument. + * That's why we explicitly handle the declaration, instead of using our macros. + */ + +int vt100_parser_yylex_init(yyscan_t* ptr_yy_globals) + +{ + if (ptr_yy_globals == NULL){ + errno = EINVAL; + return 1; + } + + *ptr_yy_globals = (yyscan_t) vt100_parser_yyalloc ( sizeof( struct yyguts_t ), NULL ); + + if (*ptr_yy_globals == NULL){ + errno = ENOMEM; + return 1; + } + + /* By setting to 0xAA, we expose bugs in yy_init_globals. Leave at 0x00 for releases. */ + memset(*ptr_yy_globals,0x00,sizeof(struct yyguts_t)); + + return yy_init_globals ( *ptr_yy_globals ); +} + +/* vt100_parser_yylex_init_extra has the same functionality as vt100_parser_yylex_init, but follows the + * convention of taking the scanner as the last argument. Note however, that + * this is a *pointer* to a scanner, as it will be allocated by this call (and + * is the reason, too, why this function also must handle its own declaration). + * The user defined value in the first argument will be available to vt100_parser_yyalloc in + * the yyextra field. + */ + +int vt100_parser_yylex_init_extra(YY_EXTRA_TYPE yy_user_defined,yyscan_t* ptr_yy_globals ) + +{ + struct yyguts_t dummy_yyguts; + + vt100_parser_yyset_extra (yy_user_defined, &dummy_yyguts); + + if (ptr_yy_globals == NULL){ + errno = EINVAL; + return 1; + } + + *ptr_yy_globals = (yyscan_t) vt100_parser_yyalloc ( sizeof( struct yyguts_t ), &dummy_yyguts ); + + if (*ptr_yy_globals == NULL){ + errno = ENOMEM; + return 1; + } + + /* By setting to 0xAA, we expose bugs in + yy_init_globals. Leave at 0x00 for releases. */ + memset(*ptr_yy_globals,0x00,sizeof(struct yyguts_t)); + + vt100_parser_yyset_extra (yy_user_defined, *ptr_yy_globals); + + return yy_init_globals ( *ptr_yy_globals ); +} + +static int yy_init_globals (yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + /* Initialization is the same as for the non-reentrant scanner. + * This function is called from vt100_parser_yylex_destroy(), so don't allocate here. + */ + + yyg->yy_buffer_stack = 0; + yyg->yy_buffer_stack_top = 0; + yyg->yy_buffer_stack_max = 0; + yyg->yy_c_buf_p = (char *) 0; + yyg->yy_init = 0; + yyg->yy_start = 0; + + yyg->yy_start_stack_ptr = 0; + yyg->yy_start_stack_depth = 0; + yyg->yy_start_stack = NULL; + +/* Defined in main.c */ +#ifdef YY_STDINIT + yyin = stdin; + yyout = stdout; +#else + yyin = (FILE *) 0; + yyout = (FILE *) 0; +#endif + + /* For future reference: Set errno on error, since we are called by + * vt100_parser_yylex_init() + */ + return 0; +} + +/* vt100_parser_yylex_destroy is for both reentrant and non-reentrant scanners. */ +int vt100_parser_yylex_destroy (yyscan_t yyscanner) +{ + struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; + + /* Pop the buffer stack, destroying each element. */ + while(YY_CURRENT_BUFFER){ + vt100_parser_yy_delete_buffer(YY_CURRENT_BUFFER ,yyscanner ); + YY_CURRENT_BUFFER_LVALUE = NULL; + vt100_parser_yypop_buffer_state(yyscanner); + } + + /* Destroy the stack itself. */ + vt100_parser_yyfree(yyg->yy_buffer_stack ,yyscanner); + yyg->yy_buffer_stack = NULL; + + /* Destroy the start condition stack. */ + vt100_parser_yyfree(yyg->yy_start_stack ,yyscanner ); + yyg->yy_start_stack = NULL; + + /* Reset the globals. This is important in a non-reentrant scanner so the next time + * vt100_parser_yylex() is called, initialization will occur. */ + yy_init_globals( yyscanner); + + /* Destroy the main struct (reentrant only). */ + vt100_parser_yyfree ( yyscanner , yyscanner ); + yyscanner = NULL; + return 0; +} + +/* + * Internal utility routines. + */ + +#ifndef yytext_ptr +static void yy_flex_strncpy (char* s1, yyconst char * s2, int n , yyscan_t yyscanner) +{ + register int i; + for ( i = 0; i < n; ++i ) + s1[i] = s2[i]; +} +#endif + +#ifdef YY_NEED_STRLEN +static int yy_flex_strlen (yyconst char * s , yyscan_t yyscanner) +{ + register int n; + for ( n = 0; s[n]; ++n ) + ; + + return n; +} +#endif + +#define YYTABLES_NAME "yytables" + +#line 224 "src/parser.l" + + + +static void vt100_parser_handle_bel(VT100Screen *vt) +{ + vt100_screen_audible_bell(vt); +} + +static void vt100_parser_handle_bs(VT100Screen *vt) +{ + vt100_screen_move_to(vt, vt->grid->cur.row, vt->grid->cur.col - 1); +} + +static void vt100_parser_handle_tab(VT100Screen *vt) +{ + vt100_screen_move_to( + vt, vt->grid->cur.row, + vt->grid->cur.col - (vt->grid->cur.col % 8) + 8); +} + +static void vt100_parser_handle_lf(VT100Screen *vt) +{ + vt100_screen_move_to(vt, vt->grid->cur.row + 1, vt->grid->cur.col); +} + +static void vt100_parser_handle_cr(VT100Screen *vt) +{ + vt100_screen_move_to(vt, vt->grid->cur.row, 0); +} + +static void vt100_parser_handle_deckpam(VT100Screen *vt) +{ + vt100_screen_set_application_keypad(vt); +} + +static void vt100_parser_handle_deckpnm(VT100Screen *vt) +{ + vt100_screen_reset_application_keypad(vt); +} + +static void vt100_parser_handle_ri(VT100Screen *vt) +{ + vt100_screen_move_to(vt, vt->grid->cur.row - 1, vt->grid->cur.col); +} + +static void vt100_parser_handle_ris(VT100Screen *vt) +{ + vt100_screen_use_normal_buffer(vt); + vt100_screen_set_scroll_region( + vt, 0, vt->grid->max.row - 1, 0, vt->grid->max.col - 1); + vt100_screen_clear_screen(vt); + vt100_screen_save_cursor(vt); + vt100_screen_reset_text_attributes(vt); + vt100_screen_show_cursor(vt); + vt100_screen_reset_application_keypad(vt); + vt100_screen_reset_application_cursor(vt); + vt100_screen_reset_mouse_reporting_press(vt); + vt100_screen_reset_mouse_reporting_press_release(vt); +} + +static void vt100_parser_handle_vb(VT100Screen *vt) +{ + vt100_screen_visual_bell(vt); +} + +static void vt100_parser_handle_decsc(VT100Screen *vt) +{ + vt100_screen_save_cursor(vt); +} + +static void vt100_parser_handle_decrc(VT100Screen *vt) +{ + vt100_screen_restore_cursor(vt); +} + +static void vt100_parser_extract_csi_params( + char *buf, size_t len, int *params, int *nparams) +{ + vt100_parser_extract_sm_params(buf, len, NULL, params, nparams); +} + +static void vt100_parser_extract_sm_params( + char *buf, size_t len, char *modes, int *params, int *nparams) +{ + char *pos = buf; + + /* this assumes that it will only ever be called on a fully matched CSI + * sequence: accessing one character beyond the end is safe because CSI + * sequences always have one character after the parameters (to determine + * the type of sequence), and the parameters can only ever be digits, + * separated by semicolons. */ + buf[len] = '\0'; + *nparams = 0; + while ((size_t)(pos - buf) < len) { + if (*nparams >= VT100_PARSER_CSI_MAX_PARAMS) { + fprintf(stderr, "max CSI parameter length exceeded\n"); + break; + } + + if (modes && (size_t)(pos - buf) < len) { + if (strspn(pos, "0123456789")) { + modes[*nparams] = '\0'; + } + else { + modes[*nparams] = *pos++; + } + } + + params[(*nparams)++] = atoi(pos); + + pos = strchr(pos, ';'); + if (pos) { + pos++; + } + else { + break; + } + } +} + +static void vt100_parser_handle_ich(VT100Screen *vt, char *buf, size_t len) +{ + int params[VT100_PARSER_CSI_MAX_PARAMS] = { 1 }, nparams; + + vt100_parser_extract_csi_params(buf + 2, len - 3, params, &nparams); + vt100_screen_insert_characters(vt, params[0]); +} + +static void vt100_parser_handle_cuu(VT100Screen *vt, char *buf, size_t len) +{ + int params[VT100_PARSER_CSI_MAX_PARAMS] = { 1 }, nparams; + + vt100_parser_extract_csi_params(buf + 2, len - 3, params, &nparams); + vt100_screen_move_to( + vt, vt->grid->cur.row - params[0], vt->grid->cur.col); +} + +static void vt100_parser_handle_cud(VT100Screen *vt, char *buf, size_t len) +{ + int params[VT100_PARSER_CSI_MAX_PARAMS] = { 1 }, nparams; + + vt100_parser_extract_csi_params(buf + 2, len - 3, params, &nparams); + vt100_screen_move_to( + vt, vt->grid->cur.row + params[0], vt->grid->cur.col); +} + +static void vt100_parser_handle_cuf(VT100Screen *vt, char *buf, size_t len) +{ + int params[VT100_PARSER_CSI_MAX_PARAMS] = { 1 }, nparams; + + vt100_parser_extract_csi_params(buf + 2, len - 3, params, &nparams); + vt100_screen_move_to( + vt, vt->grid->cur.row, vt->grid->cur.col + params[0]); +} + +static void vt100_parser_handle_cub(VT100Screen *vt, char *buf, size_t len) +{ + int params[VT100_PARSER_CSI_MAX_PARAMS] = { 1 }, nparams; + + vt100_parser_extract_csi_params(buf + 2, len - 3, params, &nparams); + vt100_screen_move_to( + vt, vt->grid->cur.row, vt->grid->cur.col - params[0]); +} + +static void vt100_parser_handle_cup(VT100Screen *vt, char *buf, size_t len) +{ + int params[VT100_PARSER_CSI_MAX_PARAMS] = { 0, 0 }, nparams; + + vt100_parser_extract_csi_params(buf + 2, len - 3, params, &nparams); + if (params[0] == 0) { + params[0] = 1; + } + if (params[1] == 0) { + params[1] = 1; + } + vt100_screen_move_to(vt, params[0] - 1, params[1] - 1); +} + +static void vt100_parser_handle_ed(VT100Screen *vt, char *buf, size_t len) +{ + int params[VT100_PARSER_CSI_MAX_PARAMS] = { 0 }, nparams; + + vt100_parser_extract_csi_params(buf + 2, len - 3, params, &nparams); + switch (params[0]) { + case 0: + vt100_screen_clear_screen_forward(vt); + break; + case 1: + vt100_screen_clear_screen_backward(vt); + break; + case 2: + vt100_screen_clear_screen(vt); + break; + default: + fprintf(stderr, "unknown ED parameter %d\n", params[0]); + break; + } +} + +static void vt100_parser_handle_el(VT100Screen *vt, char *buf, size_t len) +{ + int params[VT100_PARSER_CSI_MAX_PARAMS] = { 0 }, nparams; + + vt100_parser_extract_csi_params(buf + 2, len - 3, params, &nparams); + switch (params[0]) { + case 0: + vt100_screen_kill_line_forward(vt); + break; + case 1: + vt100_screen_kill_line_backward(vt); + break; + case 2: + vt100_screen_kill_line(vt); + break; + default: + fprintf(stderr, "unknown EL parameter %d\n", params[0]); + break; + } +} + +static void vt100_parser_handle_il(VT100Screen *vt, char *buf, size_t len) +{ + int params[VT100_PARSER_CSI_MAX_PARAMS] = { 1 }, nparams; + + vt100_parser_extract_csi_params(buf + 2, len - 3, params, &nparams); + vt100_screen_insert_lines(vt, params[0]); + vt100_screen_move_to(vt, vt->grid->cur.row, 0); +} + +static void vt100_parser_handle_dl(VT100Screen *vt, char *buf, size_t len) +{ + int params[VT100_PARSER_CSI_MAX_PARAMS] = { 1 }, nparams; + + vt100_parser_extract_csi_params(buf + 2, len - 3, params, &nparams); + vt100_screen_delete_lines(vt, params[0]); + vt100_screen_move_to(vt, vt->grid->cur.row, 0); +} + +static void vt100_parser_handle_dch(VT100Screen *vt, char *buf, size_t len) +{ + int params[VT100_PARSER_CSI_MAX_PARAMS] = { 1 }, nparams; + + vt100_parser_extract_csi_params(buf + 2, len - 3, params, &nparams); + vt100_screen_delete_characters(vt, params[0]); +} + +static void vt100_parser_handle_sm(VT100Screen *vt, char *buf, size_t len) +{ + int params[VT100_PARSER_CSI_MAX_PARAMS], nparams, i; + char modes[VT100_PARSER_CSI_MAX_PARAMS] = { 0 }; + + vt100_parser_extract_sm_params(buf + 2, len - 3, modes, params, &nparams); + for (i = 0; i < nparams; ++i) { + switch (modes[i]) { + case 0: + switch (params[i]) { + case 34: + /* do nothing, no idea what this is even for */ + break; + default: + fprintf(stderr, "unknown SM parameter: %d\n", params[i]); + break; + } + break; + case '?': + switch (params[i]) { + case 1: + vt100_screen_set_application_cursor(vt); + break; + case 9: + vt100_screen_set_mouse_reporting_press(vt); + break; + case 25: + vt100_screen_show_cursor(vt); + break; + case 1000: + vt100_screen_set_mouse_reporting_press_release(vt); + break; + case 47: + case 1049: + vt100_screen_use_alternate_buffer(vt); + break; + case 2004: + vt100_screen_set_bracketed_paste(vt); + break; + default: + fprintf(stderr, + "unknown SM parameter: %c%d\n", modes[i], params[i]); + break; + } + break; + default: + fprintf(stderr, + "unknown SM parameter: %c%d\n", modes[i], params[i]); + break; + } + } +} + +static void vt100_parser_handle_rm(VT100Screen *vt, char *buf, size_t len) +{ + int params[VT100_PARSER_CSI_MAX_PARAMS], nparams, i; + char modes[VT100_PARSER_CSI_MAX_PARAMS] = { 0 }; + + vt100_parser_extract_sm_params(buf + 2, len - 3, modes, params, &nparams); + for (i = 0; i < nparams; ++i) { + switch (modes[i]) { + case 0: + switch (params[i]) { + case 34: + /* do nothing, no idea what this is even for */ + break; + default: + fprintf(stderr, "unknown RM parameter: %d\n", params[i]); + break; + } + break; + case '?': + switch (params[i]) { + case 1: + vt100_screen_set_application_cursor(vt); + break; + case 9: + vt100_screen_set_mouse_reporting_press(vt); + break; + case 25: + vt100_screen_hide_cursor(vt); + break; + case 1000: + vt100_screen_set_mouse_reporting_press_release(vt); + break; + case 47: + case 1049: + vt100_screen_use_normal_buffer(vt); + break; + case 2004: + vt100_screen_reset_bracketed_paste(vt); + break; + default: + fprintf(stderr, + "unknown RM parameter: %c%d\n", modes[i], params[i]); + break; + } + break; + default: + fprintf(stderr, + "unknown RM parameter: %c%d\n", modes[i], params[i]); + break; + } + } +} + +static void vt100_parser_handle_sgr(VT100Screen *vt, char *buf, size_t len) +{ + int params[VT100_PARSER_CSI_MAX_PARAMS] = { 0 }, nparams, i; + + vt100_parser_extract_csi_params(buf + 2, len - 3, params, &nparams); + if (nparams < 1) { + nparams = 1; + } + for (i = 0; i < nparams; ++i) { + switch (params[i]) { + case 0: + vt100_screen_reset_text_attributes(vt); + break; + case 1: + vt100_screen_set_bold(vt); + break; + case 3: + vt100_screen_set_italic(vt); + break; + case 4: + vt100_screen_set_underline(vt); + break; + case 7: + vt100_screen_set_inverse(vt); + break; + case 22: + vt100_screen_reset_bold(vt); + break; + case 23: + vt100_screen_reset_italic(vt); + break; + case 24: + vt100_screen_reset_underline(vt); + break; + case 27: + vt100_screen_reset_inverse(vt); + break; + case 30: case 31: case 32: case 33: + case 34: case 35: case 36: case 37: + vt100_screen_set_fg_color(vt, params[i] - 30); + break; + case 38: { + i++; + if (i >= nparams) { + fprintf(stderr, + "unknown SGR parameter: %d (too few parameters)\n", + params[i - 1]); + break; + } + + switch (params[i]) { + case 2: + i += 3; + if (i >= nparams) { + fprintf(stderr, + "unknown SGR parameter: %d;%d (too few parameters)\n", + params[i - 4], params[i - 3]); + break; + } + vt100_screen_set_fg_color_rgb( + vt, params[i - 2], params[i - 1], params[i]); + break; + case 5: + i++; + if (i >= nparams) { + fprintf(stderr, + "unknown SGR parameter: %d;%d (too few parameters)\n", + params[i - 2], params[i - 1]); + break; + } + vt100_screen_set_fg_color(vt, params[i]); + break; + default: + i++; + fprintf(stderr, + "unknown SGR parameter: %d;%d\n", + params[i - 2], params[i - 1]); + break; + } + break; + } + case 39: + vt100_screen_reset_fg_color(vt); + break; + case 40: case 41: case 42: case 43: + case 44: case 45: case 46: case 47: + vt100_screen_set_bg_color(vt, params[i] - 40); + break; + case 48: { + i++; + if (i >= nparams) { + fprintf(stderr, + "unknown SGR parameter: %d (too few parameters)\n", + params[i - 1]); + break; + } + + switch (params[i]) { + case 2: + i += 3; + if (i >= nparams) { + fprintf(stderr, + "unknown SGR parameter: %d;%d (too few parameters)\n", + params[i - 4], params[i - 3]); + break; + } + vt100_screen_set_bg_color_rgb( + vt, params[i - 2], params[i - 1], params[i]); + break; + case 5: + i++; + if (i >= nparams) { + fprintf(stderr, + "unknown SGR parameter: %d;%d (too few parameters)\n", + params[i - 2], params[i - 1]); + break; + } + vt100_screen_set_bg_color(vt, params[i]); + break; + default: + i++; + fprintf(stderr, + "unknown SGR parameter: %d;%d\n", + params[i - 2], params[i - 1]); + break; + } + break; + } + case 49: + vt100_screen_reset_bg_color(vt); + break; + case 90: case 91: case 92: case 93: + case 94: case 95: case 96: case 97: + vt100_screen_set_fg_color(vt, params[i] - 82); + break; + case 100: case 101: case 102: case 103: + case 104: case 105: case 106: case 107: + vt100_screen_set_bg_color(vt, params[i] - 92); + break; + default: + fprintf(stderr, "unknown SGR parameter: %d\n", params[i]); + break; + } + } +} + +static void vt100_parser_handle_csr(VT100Screen *vt, char *buf, size_t len) +{ + int params[VT100_PARSER_CSI_MAX_PARAMS] = { + 1, vt->grid->max.row, 1, vt->grid->max.col }; + int nparams; + + vt100_parser_extract_csi_params(buf + 2, len - 3, params, &nparams); + + vt100_screen_set_scroll_region( + vt, params[0] - 1, params[1] - 1, params[2] - 1, params[3] - 1); +} + +static void vt100_parser_handle_decsed(VT100Screen *vt, char *buf, size_t len) +{ + /* XXX not quite correct, but i don'vt think programs really use anything + * that would show a difference */ + vt100_parser_handle_ed(vt, buf, len); +} + +static void vt100_parser_handle_decsel(VT100Screen *vt, char *buf, size_t len) +{ + /* XXX not quite correct, but i don'vt think programs really use anything + * that would show a difference */ + vt100_parser_handle_el(vt, buf, len); +} + +static void vt100_parser_handle_osc0(VT100Screen *vt, char *buf, size_t len) +{ + vt100_screen_set_icon_name(vt, buf + 4, len - 5); + vt100_screen_set_window_title(vt, buf + 4, len - 5); +} + +static void vt100_parser_handle_osc1(VT100Screen *vt, char *buf, size_t len) +{ + vt100_screen_set_icon_name(vt, buf + 4, len - 5); +} + +static void vt100_parser_handle_osc2(VT100Screen *vt, char *buf, size_t len) +{ + vt100_screen_set_window_title(vt, buf + 4, len - 5); +} + +static void vt100_parser_handle_ascii(VT100Screen *vt, char *text, size_t len) +{ + vt100_screen_show_string_ascii(vt, text, len); +} + +static void vt100_parser_handle_text(VT100Screen *vt, char *text, size_t len) +{ + vt100_screen_show_string_utf8(vt, text, len); +} + +/* XXX these are copied from the generated file so that I can add the UNUSED + * declarations, otherwise we get compilation errors */ +void *vt100_parser_yyalloc(yy_size_t size, yyscan_t yyscanner) +{ + UNUSED(yyscanner); + return (void *)malloc(size); +} + +void *vt100_parser_yyrealloc(void *ptr, yy_size_t size, yyscan_t yyscanner) +{ + UNUSED(yyscanner); + return (void *)realloc((char *)ptr, size); +} + +void vt100_parser_yyfree(void *ptr, yyscan_t yyscanner) +{ + UNUSED(yyscanner); + free((char *) ptr); +} + diff --git a/src/parser.h b/src/parser.h new file mode 100644 index 0000000..a250957 --- /dev/null +++ b/src/parser.h @@ -0,0 +1,338 @@ +#ifndef vt100_parser_yyHEADER_H +#define vt100_parser_yyHEADER_H 1 +#define vt100_parser_yyIN_HEADER 1 + +#line 6 "src/parser.h" + +#line 8 "src/parser.h" + +#define YY_INT_ALIGNED short int + +/* A lexical scanner generated by flex */ + +#define FLEX_SCANNER +#define YY_FLEX_MAJOR_VERSION 2 +#define YY_FLEX_MINOR_VERSION 5 +#define YY_FLEX_SUBMINOR_VERSION 39 +#if YY_FLEX_SUBMINOR_VERSION > 0 +#define FLEX_BETA +#endif + +/* First, we deal with platform-specific or compiler-specific issues. */ + +/* begin standard C headers. */ +#include <stdio.h> +#include <string.h> +#include <errno.h> +#include <stdlib.h> + +/* end standard C headers. */ + +/* flex integer type definitions */ + +#ifndef FLEXINT_H +#define FLEXINT_H + +/* C99 systems have <inttypes.h>. Non-C99 systems may or may not. */ + +#if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L + +/* C99 says to define __STDC_LIMIT_MACROS before including stdint.h, + * if you want the limit (max/min) macros for int types. + */ +#ifndef __STDC_LIMIT_MACROS +#define __STDC_LIMIT_MACROS 1 +#endif + +#include <inttypes.h> +typedef int8_t flex_int8_t; +typedef uint8_t flex_uint8_t; +typedef int16_t flex_int16_t; +typedef uint16_t flex_uint16_t; +typedef int32_t flex_int32_t; +typedef uint32_t flex_uint32_t; +#else +typedef signed char flex_int8_t; +typedef short int flex_int16_t; +typedef int flex_int32_t; +typedef unsigned char flex_uint8_t; +typedef unsigned short int flex_uint16_t; +typedef unsigned int flex_uint32_t; + +/* Limits of integral types. */ +#ifndef INT8_MIN +#define INT8_MIN (-128) +#endif +#ifndef INT16_MIN +#define INT16_MIN (-32767-1) +#endif +#ifndef INT32_MIN +#define INT32_MIN (-2147483647-1) +#endif +#ifndef INT8_MAX +#define INT8_MAX (127) +#endif +#ifndef INT16_MAX +#define INT16_MAX (32767) +#endif +#ifndef INT32_MAX +#define INT32_MAX (2147483647) +#endif +#ifndef UINT8_MAX +#define UINT8_MAX (255U) +#endif +#ifndef UINT16_MAX +#define UINT16_MAX (65535U) +#endif +#ifndef UINT32_MAX +#define UINT32_MAX (4294967295U) +#endif + +#endif /* ! C99 */ + +#endif /* ! FLEXINT_H */ + +#ifdef __cplusplus + +/* The "const" storage-class-modifier is valid. */ +#define YY_USE_CONST + +#else /* ! __cplusplus */ + +/* C99 requires __STDC__ to be defined as 1. */ +#if defined (__STDC__) + +#define YY_USE_CONST + +#endif /* defined (__STDC__) */ +#endif /* ! __cplusplus */ + +#ifdef YY_USE_CONST +#define yyconst const +#else +#define yyconst +#endif + +/* An opaque pointer. */ +#ifndef YY_TYPEDEF_YY_SCANNER_T +#define YY_TYPEDEF_YY_SCANNER_T +typedef void* yyscan_t; +#endif + +/* For convenience, these vars (plus the bison vars far below) + are macros in the reentrant scanner. */ +#define yyin yyg->yyin_r +#define yyout yyg->yyout_r +#define yyextra yyg->yyextra_r +#define yyleng yyg->yyleng_r +#define yytext yyg->yytext_r +#define yylineno (YY_CURRENT_BUFFER_LVALUE->yy_bs_lineno) +#define yycolumn (YY_CURRENT_BUFFER_LVALUE->yy_bs_column) +#define yy_flex_debug yyg->yy_flex_debug_r + +/* Size of default input buffer. */ +#ifndef YY_BUF_SIZE +#define YY_BUF_SIZE 16384 +#endif + +#ifndef YY_TYPEDEF_YY_BUFFER_STATE +#define YY_TYPEDEF_YY_BUFFER_STATE +typedef struct yy_buffer_state *YY_BUFFER_STATE; +#endif + +#ifndef YY_TYPEDEF_YY_SIZE_T +#define YY_TYPEDEF_YY_SIZE_T +typedef size_t yy_size_t; +#endif + +#ifndef YY_STRUCT_YY_BUFFER_STATE +#define YY_STRUCT_YY_BUFFER_STATE +struct yy_buffer_state + { + FILE *yy_input_file; + + char *yy_ch_buf; /* input buffer */ + char *yy_buf_pos; /* current position in input buffer */ + + /* Size of input buffer in bytes, not including room for EOB + * characters. + */ + yy_size_t yy_buf_size; + + /* Number of characters read into yy_ch_buf, not including EOB + * characters. + */ + yy_size_t yy_n_chars; + + /* Whether we "own" the buffer - i.e., we know we created it, + * and can realloc() it to grow it, and should free() it to + * delete it. + */ + int yy_is_our_buffer; + + /* Whether this is an "interactive" input source; if so, and + * if we're using stdio for input, then we want to use getc() + * instead of fread(), to make sure we stop fetching input after + * each newline. + */ + int yy_is_interactive; + + /* Whether we're considered to be at the beginning of a line. + * If so, '^' rules will be active on the next match, otherwise + * not. + */ + int yy_at_bol; + + int yy_bs_lineno; /**< The line count. */ + int yy_bs_column; /**< The column count. */ + + /* Whether to try to fill the input buffer when we reach the + * end of it. + */ + int yy_fill_buffer; + + int yy_buffer_status; + + }; +#endif /* !YY_STRUCT_YY_BUFFER_STATE */ + +void vt100_parser_yyrestart (FILE *input_file ,yyscan_t yyscanner ); +void vt100_parser_yy_switch_to_buffer (YY_BUFFER_STATE new_buffer ,yyscan_t yyscanner ); +YY_BUFFER_STATE vt100_parser_yy_create_buffer (FILE *file,int size ,yyscan_t yyscanner ); +void vt100_parser_yy_delete_buffer (YY_BUFFER_STATE b ,yyscan_t yyscanner ); +void vt100_parser_yy_flush_buffer (YY_BUFFER_STATE b ,yyscan_t yyscanner ); +void vt100_parser_yypush_buffer_state (YY_BUFFER_STATE new_buffer ,yyscan_t yyscanner ); +void vt100_parser_yypop_buffer_state (yyscan_t yyscanner ); + +YY_BUFFER_STATE vt100_parser_yy_scan_buffer (char *base,yy_size_t size ,yyscan_t yyscanner ); +YY_BUFFER_STATE vt100_parser_yy_scan_string (yyconst char *yy_str ,yyscan_t yyscanner ); +YY_BUFFER_STATE vt100_parser_yy_scan_bytes (yyconst char *bytes,yy_size_t len ,yyscan_t yyscanner ); + +void *vt100_parser_yyalloc (yy_size_t ,yyscan_t yyscanner ); +void *vt100_parser_yyrealloc (void *,yy_size_t ,yyscan_t yyscanner ); +void vt100_parser_yyfree (void * ,yyscan_t yyscanner ); + +/* Begin user sect3 */ + +#define vt100_parser_yywrap(yyscanner) 1 +#define YY_SKIP_YYWRAP + +#define yytext_ptr yytext_r + +#ifdef YY_HEADER_EXPORT_START_CONDITIONS +#define INITIAL 0 + +#endif + +#ifndef YY_NO_UNISTD_H +/* Special case for "unistd.h", since it is non-ANSI. We include it way + * down here because we want the user's section 1 to have been scanned first. + * The user has a chance to override it with an option. + */ +#include <unistd.h> +#endif + +#define YY_EXTRA_TYPE VT100Screen * + +int vt100_parser_yylex_init (yyscan_t* scanner); + +int vt100_parser_yylex_init_extra (YY_EXTRA_TYPE user_defined,yyscan_t* scanner); + +/* Accessor methods to globals. + These are made visible to non-reentrant scanners for convenience. */ + +int vt100_parser_yylex_destroy (yyscan_t yyscanner ); + +int vt100_parser_yyget_debug (yyscan_t yyscanner ); + +void vt100_parser_yyset_debug (int debug_flag ,yyscan_t yyscanner ); + +YY_EXTRA_TYPE vt100_parser_yyget_extra (yyscan_t yyscanner ); + +void vt100_parser_yyset_extra (YY_EXTRA_TYPE user_defined ,yyscan_t yyscanner ); + +FILE *vt100_parser_yyget_in (yyscan_t yyscanner ); + +void vt100_parser_yyset_in (FILE * in_str ,yyscan_t yyscanner ); + +FILE *vt100_parser_yyget_out (yyscan_t yyscanner ); + +void vt100_parser_yyset_out (FILE * out_str ,yyscan_t yyscanner ); + +yy_size_t vt100_parser_yyget_leng (yyscan_t yyscanner ); + +char *vt100_parser_yyget_text (yyscan_t yyscanner ); + +int vt100_parser_yyget_lineno (yyscan_t yyscanner ); + +void vt100_parser_yyset_lineno (int line_number ,yyscan_t yyscanner ); + +int vt100_parser_yyget_column (yyscan_t yyscanner ); + +void vt100_parser_yyset_column (int column_no ,yyscan_t yyscanner ); + +/* Macros after this point can all be overridden by user definitions in + * section 1. + */ + +#ifndef YY_SKIP_YYWRAP +#ifdef __cplusplus +extern "C" int vt100_parser_yywrap (yyscan_t yyscanner ); +#else +extern int vt100_parser_yywrap (yyscan_t yyscanner ); +#endif +#endif + +#ifndef yytext_ptr +static void yy_flex_strncpy (char *,yyconst char *,int ,yyscan_t yyscanner); +#endif + +#ifdef YY_NEED_STRLEN +static int yy_flex_strlen (yyconst char * ,yyscan_t yyscanner); +#endif + +#ifndef YY_NO_INPUT + +#endif + +/* Amount of stuff to slurp up with each read. */ +#ifndef YY_READ_BUF_SIZE +#define YY_READ_BUF_SIZE 8192 +#endif + +/* Number of entries by which start-condition stack grows. */ +#ifndef YY_START_STACK_INCR +#define YY_START_STACK_INCR 25 +#endif + +/* Default declaration of generated scanner - a define so the user can + * easily add parameters. + */ +#ifndef YY_DECL +#define YY_DECL_IS_OURS 1 + +extern int vt100_parser_yylex (yyscan_t yyscanner); + +#define YY_DECL int vt100_parser_yylex (yyscan_t yyscanner) +#endif /* !YY_DECL */ + +/* yy_get_previous_state - get the state just before the EOB char was reached */ + +#undef YY_NEW_FILE +#undef YY_FLUSH_BUFFER +#undef yy_set_bol +#undef yy_new_buffer +#undef yy_set_interactive +#undef YY_DO_BEFORE_ACTION + +#ifdef YY_DECL_IS_OURS +#undef YY_DECL_IS_OURS +#undef YY_DECL +#endif + +#line 224 "src/parser.l" + + +#line 337 "src/parser.h" +#undef vt100_parser_yyIN_HEADER +#endif /* vt100_parser_yyHEADER_H */ diff --git a/src/parser.l b/src/parser.l new file mode 100644 index 0000000..0ca55d1 --- /dev/null +++ b/src/parser.l @@ -0,0 +1,791 @@ +%{ +#include <string.h> + +#include "vt100.h" + +#define VT100_PARSER_CSI_MAX_PARAMS 256 + +#define YY_EXIT_FAILURE (UNUSED(yyscanner), 2) +%} + +%option reentrant nodefault batch +%option noyywrap nounput noinput noyyalloc noyyrealloc noyyfree +%option prefix="vt100_parser_yy" +%option extra-type="VT100Screen *" + +CTRL [\000-\037\177] +ASCII [\040-\176] +LEAD2 [\300-\337] +LEAD3 [\340-\357] +LEAD4 [\360-\367] +CONT [\200-\277] +UNICHAR ({LEAD2}{CONT}|{LEAD3}{CONT}{CONT}|{LEAD4}{CONT}{CONT}{CONT}) +CHAR ({ASCII}|{UNICHAR}) + +ST \007 +BEL \007 +BS \010 +TAB \011 +LF \012 +VT \013 +FF \014 +CR \015 +SI \017 +ESC \033 + +DECKPAM {ESC}= +DECKPNM {ESC}> +CSI {ESC}\[ +OSC {ESC}\] +RI {ESC}M +RIS {ESC}c +VB {ESC}g +DECSC {ESC}7 +DECRC {ESC}8 + +DECCSI {CSI}\? +CSIPARAM1 ([0-9]+)? +CSIPARAM2 ([0-9]+(;[0-9]+)?)? +CSIPARAM24 ([0-9]+(;[0-9]+){1,3})? +CSIPARAMS ([0-9]+(;[0-9]+)*)? +SMPARAMS ([<=?]?[0-9]+(;[<=?]?[0-9]+)*)? + +ICH {CSI}{CSIPARAM1}@ +CUU {CSI}{CSIPARAM1}A +CUD {CSI}{CSIPARAM1}B +CUF {CSI}{CSIPARAM1}C +CUB {CSI}{CSIPARAM1}D +CUP {CSI}{CSIPARAM2}H +ED {CSI}{CSIPARAM1}J +EL {CSI}{CSIPARAM1}K +IL {CSI}{CSIPARAM1}L +DL {CSI}{CSIPARAM1}M +DCH {CSI}{CSIPARAM1}P +SM {CSI}{SMPARAMS}h +RM {CSI}{SMPARAMS}l +SGR {CSI}{CSIPARAMS}m +CSR {CSI}{CSIPARAM24}r + +DECSED {DECCSI}{CSIPARAM1}J +DECSEL {DECCSI}{CSIPARAM1}K + +OSC0 {OSC}0;{CHAR}*{ST} +OSC1 {OSC}1;{CHAR}*{ST} +OSC2 {OSC}2;{CHAR}*{ST} + +GZD4 {ESC}\([\040-\057]*[\060-\176] +G1D4 {ESC}\)[\040-\057]*[\060-\176] +G2D4 {ESC}\*[\040-\057]*[\060-\176] +G3D4 {ESC}\+[\040-\057]*[\060-\176] + +%{ +static void vt100_parser_handle_bel(VT100Screen *vt); +static void vt100_parser_handle_bs(VT100Screen *vt); +static void vt100_parser_handle_tab(VT100Screen *vt); +static void vt100_parser_handle_lf(VT100Screen *vt); +static void vt100_parser_handle_cr(VT100Screen *vt); +static void vt100_parser_handle_deckpam(VT100Screen *vt); +static void vt100_parser_handle_deckpnm(VT100Screen *vt); +static void vt100_parser_handle_ri(VT100Screen *vt); +static void vt100_parser_handle_ris(VT100Screen *vt); +static void vt100_parser_handle_vb(VT100Screen *vt); +static void vt100_parser_handle_decsc(VT100Screen *vt); +static void vt100_parser_handle_decrc(VT100Screen *vt); +static void vt100_parser_extract_csi_params( + char *buf, size_t len, int *params, int *nparams); +static void vt100_parser_extract_sm_params( + char *buf, size_t len, char *modes, int *params, int *nparams); +static void vt100_parser_handle_ich(VT100Screen *vt, char *buf, size_t len); +static void vt100_parser_handle_cuu(VT100Screen *vt, char *buf, size_t len); +static void vt100_parser_handle_cud(VT100Screen *vt, char *buf, size_t len); +static void vt100_parser_handle_cuf(VT100Screen *vt, char *buf, size_t len); +static void vt100_parser_handle_cub(VT100Screen *vt, char *buf, size_t len); +static void vt100_parser_handle_cup(VT100Screen *vt, char *buf, size_t len); +static void vt100_parser_handle_ed(VT100Screen *vt, char *buf, size_t len); +static void vt100_parser_handle_el(VT100Screen *vt, char *buf, size_t len); +static void vt100_parser_handle_il(VT100Screen *vt, char *buf, size_t len); +static void vt100_parser_handle_dl(VT100Screen *vt, char *buf, size_t len); +static void vt100_parser_handle_dch(VT100Screen *vt, char *buf, size_t len); +static void vt100_parser_handle_sm(VT100Screen *vt, char *buf, size_t len); +static void vt100_parser_handle_rm(VT100Screen *vt, char *buf, size_t len); +static void vt100_parser_handle_sgr(VT100Screen *vt, char *buf, size_t len); +static void vt100_parser_handle_csr(VT100Screen *vt, char *buf, size_t len); +static void vt100_parser_handle_decsed(VT100Screen *vt, char *buf, size_t len); +static void vt100_parser_handle_decsel(VT100Screen *vt, char *buf, size_t len); +static void vt100_parser_handle_osc0(VT100Screen *vt, char *buf, size_t len); +static void vt100_parser_handle_osc1(VT100Screen *vt, char *buf, size_t len); +static void vt100_parser_handle_osc2(VT100Screen *vt, char *buf, size_t len); +static void vt100_parser_handle_ascii(VT100Screen *vt, char *text, size_t len); +static void vt100_parser_handle_text(VT100Screen *vt, char *text, size_t len); +%} + +%% + +{BEL} vt100_parser_handle_bel(yyextra); +{BS} vt100_parser_handle_bs(yyextra); +{TAB} vt100_parser_handle_tab(yyextra); +{LF} | +{VT} | +{FF} vt100_parser_handle_lf(yyextra); +{CR} vt100_parser_handle_cr(yyextra); +{SI} + +{DECKPAM} vt100_parser_handle_deckpam(yyextra); +{DECKPNM} vt100_parser_handle_deckpnm(yyextra); +{RI} vt100_parser_handle_ri(yyextra); +{RIS} vt100_parser_handle_ris(yyextra); +{VB} vt100_parser_handle_vb(yyextra); +{DECSC} vt100_parser_handle_decsc(yyextra); +{DECRC} vt100_parser_handle_decrc(yyextra); + +{ICH} vt100_parser_handle_ich(yyextra, yytext, yyleng); +{CUU} vt100_parser_handle_cuu(yyextra, yytext, yyleng); +{CUD} vt100_parser_handle_cud(yyextra, yytext, yyleng); +{CUF} vt100_parser_handle_cuf(yyextra, yytext, yyleng); +{CUB} vt100_parser_handle_cub(yyextra, yytext, yyleng); +{CUP} vt100_parser_handle_cup(yyextra, yytext, yyleng); +{ED} vt100_parser_handle_ed(yyextra, yytext, yyleng); +{EL} vt100_parser_handle_el(yyextra, yytext, yyleng); +{IL} vt100_parser_handle_il(yyextra, yytext, yyleng); +{DL} vt100_parser_handle_dl(yyextra, yytext, yyleng); +{DCH} vt100_parser_handle_dch(yyextra, yytext, yyleng); +{SM} vt100_parser_handle_sm(yyextra, yytext, yyleng); +{RM} vt100_parser_handle_rm(yyextra, yytext, yyleng); +{SGR} vt100_parser_handle_sgr(yyextra, yytext, yyleng); +{CSR} vt100_parser_handle_csr(yyextra, yytext, yyleng); + +{DECSED} vt100_parser_handle_decsed(yyextra, yytext, yyleng); +{DECSEL} vt100_parser_handle_decsel(yyextra, yytext, yyleng); + +{OSC0} vt100_parser_handle_osc0(yyextra, yytext, yyleng); +{OSC1} vt100_parser_handle_osc1(yyextra, yytext, yyleng); +{OSC2} vt100_parser_handle_osc2(yyextra, yytext, yyleng); + +{GZD4} | +{G1D4} | +{G2D4} | +{G3D4} + +{ASCII}+ vt100_parser_handle_ascii(yyextra, yytext, yyleng); +{CHAR}+ vt100_parser_handle_text(yyextra, yytext, yyleng); + +{LEAD2} | +{LEAD3}{CONT}? | +{LEAD4}{CONT}?{CONT}? | +{CSI}[<=?]?{CSIPARAMS}[0-9;] | +{CSI} | +{OSC} | +{ESC} return yyleng; + +<<EOF>> return 0; + +{CSI}[<=?]?{CSIPARAMS}{CTRL} { + fprintf(stderr, + "unhandled CSI sequence: \\033%*s\\%hho\n", + (int)yyleng - 2, yytext + 1, yytext[yyleng - 1]); +} + +{CSI}[<=?]?{CSIPARAMS}{CHAR} { + fprintf(stderr, + "unhandled CSI sequence: \\033%*s\n", + (int)yyleng - 1, yytext + 1); +} + +{OSC}{CTRL} { + fprintf(stderr, + "unhandled OSC sequence: \\033%*s\\%hho\n", + (int)yyleng - 2, yytext + 1, yytext[yyleng - 1]); +} + +{OSC}{CHAR} { + fprintf(stderr, + "unhandled OSC sequence: \\033%*s\n", + (int)yyleng - 1, yytext + 1); +} + +{ESC}{CTRL} { + fprintf(stderr, "unhandled escape sequence: \\%hho\n", yytext[1]); +} + +{ESC}{CHAR} { + fprintf(stderr, + "unhandled escape sequence: %*s\n", + (int)yyleng - 1, yytext + 1); +} + +{CTRL} { + fprintf(stderr, "unhandled control character: \\%hho\n", yytext[0]); +} + +(?s:.) { + fprintf(stderr, "invalid utf8 byte: \\%hho\n", yytext[0]); +} + +%% + +static void vt100_parser_handle_bel(VT100Screen *vt) +{ + vt100_screen_audible_bell(vt); +} + +static void vt100_parser_handle_bs(VT100Screen *vt) +{ + vt100_screen_move_to(vt, vt->grid->cur.row, vt->grid->cur.col - 1); +} + +static void vt100_parser_handle_tab(VT100Screen *vt) +{ + vt100_screen_move_to( + vt, vt->grid->cur.row, + vt->grid->cur.col - (vt->grid->cur.col % 8) + 8); +} + +static void vt100_parser_handle_lf(VT100Screen *vt) +{ + vt100_screen_move_to(vt, vt->grid->cur.row + 1, vt->grid->cur.col); +} + +static void vt100_parser_handle_cr(VT100Screen *vt) +{ + vt100_screen_move_to(vt, vt->grid->cur.row, 0); +} + +static void vt100_parser_handle_deckpam(VT100Screen *vt) +{ + vt100_screen_set_application_keypad(vt); +} + +static void vt100_parser_handle_deckpnm(VT100Screen *vt) +{ + vt100_screen_reset_application_keypad(vt); +} + +static void vt100_parser_handle_ri(VT100Screen *vt) +{ + vt100_screen_move_to(vt, vt->grid->cur.row - 1, vt->grid->cur.col); +} + +static void vt100_parser_handle_ris(VT100Screen *vt) +{ + vt100_screen_use_normal_buffer(vt); + vt100_screen_set_scroll_region( + vt, 0, vt->grid->max.row - 1, 0, vt->grid->max.col - 1); + vt100_screen_clear_screen(vt); + vt100_screen_save_cursor(vt); + vt100_screen_reset_text_attributes(vt); + vt100_screen_show_cursor(vt); + vt100_screen_reset_application_keypad(vt); + vt100_screen_reset_application_cursor(vt); + vt100_screen_reset_mouse_reporting_press(vt); + vt100_screen_reset_mouse_reporting_press_release(vt); +} + +static void vt100_parser_handle_vb(VT100Screen *vt) +{ + vt100_screen_visual_bell(vt); +} + +static void vt100_parser_handle_decsc(VT100Screen *vt) +{ + vt100_screen_save_cursor(vt); +} + +static void vt100_parser_handle_decrc(VT100Screen *vt) +{ + vt100_screen_restore_cursor(vt); +} + +static void vt100_parser_extract_csi_params( + char *buf, size_t len, int *params, int *nparams) +{ + vt100_parser_extract_sm_params(buf, len, NULL, params, nparams); +} + +static void vt100_parser_extract_sm_params( + char *buf, size_t len, char *modes, int *params, int *nparams) +{ + char *pos = buf; + + /* this assumes that it will only ever be called on a fully matched CSI + * sequence: accessing one character beyond the end is safe because CSI + * sequences always have one character after the parameters (to determine + * the type of sequence), and the parameters can only ever be digits, + * separated by semicolons. */ + buf[len] = '\0'; + *nparams = 0; + while ((size_t)(pos - buf) < len) { + if (*nparams >= VT100_PARSER_CSI_MAX_PARAMS) { + fprintf(stderr, "max CSI parameter length exceeded\n"); + break; + } + + if (modes && (size_t)(pos - buf) < len) { + if (strspn(pos, "0123456789")) { + modes[*nparams] = '\0'; + } + else { + modes[*nparams] = *pos++; + } + } + + params[(*nparams)++] = atoi(pos); + + pos = strchr(pos, ';'); + if (pos) { + pos++; + } + else { + break; + } + } +} + +static void vt100_parser_handle_ich(VT100Screen *vt, char *buf, size_t len) +{ + int params[VT100_PARSER_CSI_MAX_PARAMS] = { 1 }, nparams; + + vt100_parser_extract_csi_params(buf + 2, len - 3, params, &nparams); + vt100_screen_insert_characters(vt, params[0]); +} + +static void vt100_parser_handle_cuu(VT100Screen *vt, char *buf, size_t len) +{ + int params[VT100_PARSER_CSI_MAX_PARAMS] = { 1 }, nparams; + + vt100_parser_extract_csi_params(buf + 2, len - 3, params, &nparams); + vt100_screen_move_to( + vt, vt->grid->cur.row - params[0], vt->grid->cur.col); +} + +static void vt100_parser_handle_cud(VT100Screen *vt, char *buf, size_t len) +{ + int params[VT100_PARSER_CSI_MAX_PARAMS] = { 1 }, nparams; + + vt100_parser_extract_csi_params(buf + 2, len - 3, params, &nparams); + vt100_screen_move_to( + vt, vt->grid->cur.row + params[0], vt->grid->cur.col); +} + +static void vt100_parser_handle_cuf(VT100Screen *vt, char *buf, size_t len) +{ + int params[VT100_PARSER_CSI_MAX_PARAMS] = { 1 }, nparams; + + vt100_parser_extract_csi_params(buf + 2, len - 3, params, &nparams); + vt100_screen_move_to( + vt, vt->grid->cur.row, vt->grid->cur.col + params[0]); +} + +static void vt100_parser_handle_cub(VT100Screen *vt, char *buf, size_t len) +{ + int params[VT100_PARSER_CSI_MAX_PARAMS] = { 1 }, nparams; + + vt100_parser_extract_csi_params(buf + 2, len - 3, params, &nparams); + vt100_screen_move_to( + vt, vt->grid->cur.row, vt->grid->cur.col - params[0]); +} + +static void vt100_parser_handle_cup(VT100Screen *vt, char *buf, size_t len) +{ + int params[VT100_PARSER_CSI_MAX_PARAMS] = { 0, 0 }, nparams; + + vt100_parser_extract_csi_params(buf + 2, len - 3, params, &nparams); + if (params[0] == 0) { + params[0] = 1; + } + if (params[1] == 0) { + params[1] = 1; + } + vt100_screen_move_to(vt, params[0] - 1, params[1] - 1); +} + +static void vt100_parser_handle_ed(VT100Screen *vt, char *buf, size_t len) +{ + int params[VT100_PARSER_CSI_MAX_PARAMS] = { 0 }, nparams; + + vt100_parser_extract_csi_params(buf + 2, len - 3, params, &nparams); + switch (params[0]) { + case 0: + vt100_screen_clear_screen_forward(vt); + break; + case 1: + vt100_screen_clear_screen_backward(vt); + break; + case 2: + vt100_screen_clear_screen(vt); + break; + default: + fprintf(stderr, "unknown ED parameter %d\n", params[0]); + break; + } +} + +static void vt100_parser_handle_el(VT100Screen *vt, char *buf, size_t len) +{ + int params[VT100_PARSER_CSI_MAX_PARAMS] = { 0 }, nparams; + + vt100_parser_extract_csi_params(buf + 2, len - 3, params, &nparams); + switch (params[0]) { + case 0: + vt100_screen_kill_line_forward(vt); + break; + case 1: + vt100_screen_kill_line_backward(vt); + break; + case 2: + vt100_screen_kill_line(vt); + break; + default: + fprintf(stderr, "unknown EL parameter %d\n", params[0]); + break; + } +} + +static void vt100_parser_handle_il(VT100Screen *vt, char *buf, size_t len) +{ + int params[VT100_PARSER_CSI_MAX_PARAMS] = { 1 }, nparams; + + vt100_parser_extract_csi_params(buf + 2, len - 3, params, &nparams); + vt100_screen_insert_lines(vt, params[0]); + vt100_screen_move_to(vt, vt->grid->cur.row, 0); +} + +static void vt100_parser_handle_dl(VT100Screen *vt, char *buf, size_t len) +{ + int params[VT100_PARSER_CSI_MAX_PARAMS] = { 1 }, nparams; + + vt100_parser_extract_csi_params(buf + 2, len - 3, params, &nparams); + vt100_screen_delete_lines(vt, params[0]); + vt100_screen_move_to(vt, vt->grid->cur.row, 0); +} + +static void vt100_parser_handle_dch(VT100Screen *vt, char *buf, size_t len) +{ + int params[VT100_PARSER_CSI_MAX_PARAMS] = { 1 }, nparams; + + vt100_parser_extract_csi_params(buf + 2, len - 3, params, &nparams); + vt100_screen_delete_characters(vt, params[0]); +} + +static void vt100_parser_handle_sm(VT100Screen *vt, char *buf, size_t len) +{ + int params[VT100_PARSER_CSI_MAX_PARAMS], nparams, i; + char modes[VT100_PARSER_CSI_MAX_PARAMS] = { 0 }; + + vt100_parser_extract_sm_params(buf + 2, len - 3, modes, params, &nparams); + for (i = 0; i < nparams; ++i) { + switch (modes[i]) { + case 0: + switch (params[i]) { + case 34: + /* do nothing, no idea what this is even for */ + break; + default: + fprintf(stderr, "unknown SM parameter: %d\n", params[i]); + break; + } + break; + case '?': + switch (params[i]) { + case 1: + vt100_screen_set_application_cursor(vt); + break; + case 9: + vt100_screen_set_mouse_reporting_press(vt); + break; + case 25: + vt100_screen_show_cursor(vt); + break; + case 1000: + vt100_screen_set_mouse_reporting_press_release(vt); + break; + case 47: + case 1049: + vt100_screen_use_alternate_buffer(vt); + break; + case 2004: + vt100_screen_set_bracketed_paste(vt); + break; + default: + fprintf(stderr, + "unknown SM parameter: %c%d\n", modes[i], params[i]); + break; + } + break; + default: + fprintf(stderr, + "unknown SM parameter: %c%d\n", modes[i], params[i]); + break; + } + } +} + +static void vt100_parser_handle_rm(VT100Screen *vt, char *buf, size_t len) +{ + int params[VT100_PARSER_CSI_MAX_PARAMS], nparams, i; + char modes[VT100_PARSER_CSI_MAX_PARAMS] = { 0 }; + + vt100_parser_extract_sm_params(buf + 2, len - 3, modes, params, &nparams); + for (i = 0; i < nparams; ++i) { + switch (modes[i]) { + case 0: + switch (params[i]) { + case 34: + /* do nothing, no idea what this is even for */ + break; + default: + fprintf(stderr, "unknown RM parameter: %d\n", params[i]); + break; + } + break; + case '?': + switch (params[i]) { + case 1: + vt100_screen_set_application_cursor(vt); + break; + case 9: + vt100_screen_set_mouse_reporting_press(vt); + break; + case 25: + vt100_screen_hide_cursor(vt); + break; + case 1000: + vt100_screen_set_mouse_reporting_press_release(vt); + break; + case 47: + case 1049: + vt100_screen_use_normal_buffer(vt); + break; + case 2004: + vt100_screen_reset_bracketed_paste(vt); + break; + default: + fprintf(stderr, + "unknown RM parameter: %c%d\n", modes[i], params[i]); + break; + } + break; + default: + fprintf(stderr, + "unknown RM parameter: %c%d\n", modes[i], params[i]); + break; + } + } +} + +static void vt100_parser_handle_sgr(VT100Screen *vt, char *buf, size_t len) +{ + int params[VT100_PARSER_CSI_MAX_PARAMS] = { 0 }, nparams, i; + + vt100_parser_extract_csi_params(buf + 2, len - 3, params, &nparams); + if (nparams < 1) { + nparams = 1; + } + for (i = 0; i < nparams; ++i) { + switch (params[i]) { + case 0: + vt100_screen_reset_text_attributes(vt); + break; + case 1: + vt100_screen_set_bold(vt); + break; + case 3: + vt100_screen_set_italic(vt); + break; + case 4: + vt100_screen_set_underline(vt); + break; + case 7: + vt100_screen_set_inverse(vt); + break; + case 22: + vt100_screen_reset_bold(vt); + break; + case 23: + vt100_screen_reset_italic(vt); + break; + case 24: + vt100_screen_reset_underline(vt); + break; + case 27: + vt100_screen_reset_inverse(vt); + break; + case 30: case 31: case 32: case 33: + case 34: case 35: case 36: case 37: + vt100_screen_set_fg_color(vt, params[i] - 30); + break; + case 38: { + i++; + if (i >= nparams) { + fprintf(stderr, + "unknown SGR parameter: %d (too few parameters)\n", + params[i - 1]); + break; + } + + switch (params[i]) { + case 2: + i += 3; + if (i >= nparams) { + fprintf(stderr, + "unknown SGR parameter: %d;%d (too few parameters)\n", + params[i - 4], params[i - 3]); + break; + } + vt100_screen_set_fg_color_rgb( + vt, params[i - 2], params[i - 1], params[i]); + break; + case 5: + i++; + if (i >= nparams) { + fprintf(stderr, + "unknown SGR parameter: %d;%d (too few parameters)\n", + params[i - 2], params[i - 1]); + break; + } + vt100_screen_set_fg_color(vt, params[i]); + break; + default: + i++; + fprintf(stderr, + "unknown SGR parameter: %d;%d\n", + params[i - 2], params[i - 1]); + break; + } + break; + } + case 39: + vt100_screen_reset_fg_color(vt); + break; + case 40: case 41: case 42: case 43: + case 44: case 45: case 46: case 47: + vt100_screen_set_bg_color(vt, params[i] - 40); + break; + case 48: { + i++; + if (i >= nparams) { + fprintf(stderr, + "unknown SGR parameter: %d (too few parameters)\n", + params[i - 1]); + break; + } + + switch (params[i]) { + case 2: + i += 3; + if (i >= nparams) { + fprintf(stderr, + "unknown SGR parameter: %d;%d (too few parameters)\n", + params[i - 4], params[i - 3]); + break; + } + vt100_screen_set_bg_color_rgb( + vt, params[i - 2], params[i - 1], params[i]); + break; + case 5: + i++; + if (i >= nparams) { + fprintf(stderr, + "unknown SGR parameter: %d;%d (too few parameters)\n", + params[i - 2], params[i - 1]); + break; + } + vt100_screen_set_bg_color(vt, params[i]); + break; + default: + i++; + fprintf(stderr, + "unknown SGR parameter: %d;%d\n", + params[i - 2], params[i - 1]); + break; + } + break; + } + case 49: + vt100_screen_reset_bg_color(vt); + break; + case 90: case 91: case 92: case 93: + case 94: case 95: case 96: case 97: + vt100_screen_set_fg_color(vt, params[i] - 82); + break; + case 100: case 101: case 102: case 103: + case 104: case 105: case 106: case 107: + vt100_screen_set_bg_color(vt, params[i] - 92); + break; + default: + fprintf(stderr, "unknown SGR parameter: %d\n", params[i]); + break; + } + } +} + +static void vt100_parser_handle_csr(VT100Screen *vt, char *buf, size_t len) +{ + int params[VT100_PARSER_CSI_MAX_PARAMS] = { + 1, vt->grid->max.row, 1, vt->grid->max.col }; + int nparams; + + vt100_parser_extract_csi_params(buf + 2, len - 3, params, &nparams); + + vt100_screen_set_scroll_region( + vt, params[0] - 1, params[1] - 1, params[2] - 1, params[3] - 1); +} + +static void vt100_parser_handle_decsed(VT100Screen *vt, char *buf, size_t len) +{ + /* XXX not quite correct, but i don'vt think programs really use anything + * that would show a difference */ + vt100_parser_handle_ed(vt, buf, len); +} + +static void vt100_parser_handle_decsel(VT100Screen *vt, char *buf, size_t len) +{ + /* XXX not quite correct, but i don'vt think programs really use anything + * that would show a difference */ + vt100_parser_handle_el(vt, buf, len); +} + +static void vt100_parser_handle_osc0(VT100Screen *vt, char *buf, size_t len) +{ + vt100_screen_set_icon_name(vt, buf + 4, len - 5); + vt100_screen_set_window_title(vt, buf + 4, len - 5); +} + +static void vt100_parser_handle_osc1(VT100Screen *vt, char *buf, size_t len) +{ + vt100_screen_set_icon_name(vt, buf + 4, len - 5); +} + +static void vt100_parser_handle_osc2(VT100Screen *vt, char *buf, size_t len) +{ + vt100_screen_set_window_title(vt, buf + 4, len - 5); +} + +static void vt100_parser_handle_ascii(VT100Screen *vt, char *text, size_t len) +{ + vt100_screen_show_string_ascii(vt, text, len); +} + +static void vt100_parser_handle_text(VT100Screen *vt, char *text, size_t len) +{ + vt100_screen_show_string_utf8(vt, text, len); +} + +/* XXX these are copied from the generated file so that I can add the UNUSED + * declarations, otherwise we get compilation errors */ +void *vt100_parser_yyalloc(yy_size_t size, yyscan_t yyscanner) +{ + UNUSED(yyscanner); + return (void *)malloc(size); +} + +void *vt100_parser_yyrealloc(void *ptr, yy_size_t size, yyscan_t yyscanner) +{ + UNUSED(yyscanner); + return (void *)realloc((char *)ptr, size); +} + +void vt100_parser_yyfree(void *ptr, yyscan_t yyscanner) +{ + UNUSED(yyscanner); + free((char *) ptr); +} diff --git a/src/screen.c b/src/screen.c new file mode 100644 index 0000000..ea16498 --- /dev/null +++ b/src/screen.c @@ -0,0 +1,959 @@ +#include <stdlib.h> +#include <string.h> + +#include <glib.h> + +#include "vt100.h" +#include "parser.h" + +static void vt100_screen_ensure_capacity(VT100Screen *vt, int size); +static struct vt100_row *vt100_screen_row_at(VT100Screen *vt, int row); +static struct vt100_cell *vt100_screen_cell_at(VT100Screen *vt, int row, int col); +static void vt100_screen_scroll_down(VT100Screen *vt, int count); +static void vt100_screen_scroll_up(VT100Screen *vt, int count); +static int vt100_screen_scroll_region_is_active(VT100Screen *vt); +static int vt100_screen_loc_is_between( + VT100Screen *vt, struct vt100_loc loc, + struct vt100_loc start, struct vt100_loc end); +static int vt100_screen_row_max_col(VT100Screen *vt, int row); + +void vt100_screen_init(VT100Screen *vt) +{ + vt->grid = calloc(1, sizeof(struct vt100_grid)); + vt100_parser_yylex_init_extra(vt, &vt->scanner); +} + +void vt100_screen_set_window_size(VT100Screen *vt) +{ + struct vt100_loc old_size; + int i; + + old_size.row = vt->grid->max.row; + old_size.col = vt->grid->max.col; + + /* vt->grid->max.row = vt->display.ypixel / vt->display.fonty; */ + /* vt->grid->max.col = vt->display.xpixel / vt->display.fontx; */ + // XXX vt100 + vt->grid->max.row = 24; + vt->grid->max.col = 80; + + if (vt->grid->max.row == 0) { + vt->grid->max.row = 1; + } + if (vt->grid->max.col == 0) { + vt->grid->max.col = 1; + } + + if (vt->grid->max.row == old_size.row && vt->grid->max.col == old_size.col) { + return; + } + + if (vt->grid->cur.row >= vt->grid->max.row) { + vt->grid->cur.row = vt->grid->max.row - 1; + } + if (vt->grid->cur.col > vt->grid->max.col) { + vt->grid->cur.col = vt->grid->max.col; + } + + vt100_screen_ensure_capacity(vt, vt->grid->max.row); + + for (i = 0; i < vt->grid->row_count; ++i) { + vt->grid->rows[i].cells = realloc( + vt->grid->rows[i].cells, + vt->grid->max.col * sizeof(struct vt100_cell)); + if (old_size.col < vt->grid->max.col) { + memset( + &vt->grid->rows[i].cells[old_size.col], 0, + (vt->grid->max.col - old_size.col) * sizeof(struct vt100_cell)); + } + } + + for (i = vt->grid->row_count; i < vt->grid->max.row; ++i) { + vt->grid->rows[i].cells = calloc( + vt->grid->max.col, sizeof(struct vt100_cell)); + } + + if (vt->grid->row_count < vt->grid->max.row) { + vt->grid->row_count = vt->grid->max.row; + vt->grid->row_top = 0; + } + else { + vt->grid->row_top = vt->grid->row_count - vt->grid->max.row; + } + + vt->grid->scroll_top = 0; + vt->grid->scroll_bottom = vt->grid->max.row - 1; +} + +int vt100_screen_process_string(VT100Screen *vt, char *buf, size_t len) +{ + int remaining; + + vt->state = vt100_parser_yy_scan_bytes(buf, len, vt->scanner); + remaining = vt100_parser_yylex(vt->scanner); + vt100_parser_yy_delete_buffer(vt->state, vt->scanner); + return len - remaining; +} + +int vt100_screen_loc_is_selected(VT100Screen *vt, struct vt100_loc loc) +{ + struct vt100_loc start = vt->grid->selection_start; + struct vt100_loc end = vt->grid->selection_end; + + if (!vt->has_selection) { + return 0; + } + + if (loc.row == start.row) { + int start_max_col; + + start_max_col = vt100_screen_row_max_col(vt, start.row); + if (start.col > start_max_col) { + start.col = vt->grid->max.col; + } + } + + if (loc.row == end.row) { + int end_max_col; + + end_max_col = vt100_screen_row_max_col(vt, end.row); + if (end.col > end_max_col) { + end.col = vt->grid->max.col; + } + } + + return vt100_screen_loc_is_between(vt, loc, start, end); +} + +void vt100_screen_get_string( + VT100Screen *vt, struct vt100_loc *start, struct vt100_loc *end, + char **strp, size_t *lenp) +{ + int row, col; + size_t capacity = 8; + + *lenp = 0; + + if (end->row < start->row || (end->row == start->row && end->col <= start->col)) { + return; + } + + *strp = malloc(capacity); + + for (row = start->row; row <= end->row; ++row) { + int start_col, end_col, max_col; + struct vt100_row *grid_row = &vt->grid->rows[row]; + + max_col = vt100_screen_row_max_col(vt, row); + + if (row == start->row) { + if (start->col > max_col) { + start_col = vt->grid->max.col; + } + else { + start_col = start->col; + } + } + else { + start_col = 0; + } + + if (row == end->row) { + if (end->col > max_col) { + end_col = vt->grid->max.col; + } + else { + end_col = end->col; + } + } + else { + end_col = vt->grid->max.col; + } + + if (end_col > max_col) { + end_col = max_col; + } + + for (col = start_col; col < end_col; ++col) { + struct vt100_cell *cell = &grid_row->cells[col]; + char *contents = cell->contents; + size_t len = cell->len; + + if (cell->len == 0) { + contents = " "; + len = 1; + } + + if (*lenp + len > capacity) { + capacity *= 1.5; + *strp = realloc(*strp, capacity); + } + memcpy(*strp + *lenp, contents, len); + *lenp += len; + } + + if ((row != end->row || end->col > max_col) && !grid_row->wrapped) { + if (*lenp + 1 > capacity) { + capacity *= 1.5; + *strp = realloc(*strp, capacity); + } + memcpy(*strp + *lenp, "\n", 1); + *lenp += 1; + } + } +} + +void vt100_screen_audible_bell(VT100Screen *vt) +{ + vt->audible_bell = 1; +} + +void vt100_screen_visual_bell(VT100Screen *vt) +{ + vt->visual_bell = 1; +} + +void vt100_screen_show_string_ascii(VT100Screen *vt, char *buf, size_t len) +{ + size_t i; + int col = vt->grid->cur.col; + + for (i = 0; i < len; ++i) { + struct vt100_cell *cell; + + if (col >= vt->grid->max.col) { + vt100_screen_row_at(vt, vt->grid->cur.row)->wrapped = 1; + vt100_screen_move_to(vt, vt->grid->cur.row + 1, 0); + col = 0; + } + cell = vt100_screen_cell_at(vt, vt->grid->cur.row, col++); + + cell->len = 1; + cell->contents[0] = buf[i]; + cell->attrs = vt->attrs; + cell->is_wide = 0; + } + vt100_screen_move_to(vt, vt->grid->cur.row, col); + + vt->dirty = 1; +} + +void vt100_screen_show_string_utf8(VT100Screen *vt, char *buf, size_t len) +{ + char *c = buf, *next; + int col = vt->grid->cur.col; + + /* XXX need to detect combining characters and append them to the previous + * cell */ + while ((next = g_utf8_next_char(c))) { + gunichar uc; + struct vt100_cell *cell = NULL; + int is_wide, is_combining; + GUnicodeType ctype; + + uc = g_utf8_get_char(c); + /* XXX handle zero width characters */ + is_wide = g_unichar_iswide(uc); + ctype = g_unichar_type(uc); + /* XXX should this also include spacing marks? */ + is_combining = ctype == G_UNICODE_ENCLOSING_MARK + || ctype == G_UNICODE_NON_SPACING_MARK; + + if (is_combining) { + if (col > 0) { + cell = vt100_screen_cell_at( + vt, vt->grid->cur.row, col - 1); + } + else if (vt->grid->cur.row > 0 && vt100_screen_row_at(vt, vt->grid->cur.row - 1)->wrapped) { + cell = vt100_screen_cell_at( + vt, vt->grid->cur.row - 1, vt->grid->max.col - 1); + } + + if (cell) { + char *normal; + + memcpy(cell->contents + cell->len, c, next - c); + cell->len += next - c; + /* some fonts have combined characters but can'vt handle + * combining characters, so try to fix that here */ + /* XXX it'd be nice if there was a way to do this that didn'vt + * require an allocation */ + normal = g_utf8_normalize( + cell->contents, cell->len, G_NORMALIZE_NFC); + memcpy(cell->contents, normal, cell->len); + free(normal); + } + } + else { + if (col + (is_wide ? 2 : 1) > vt->grid->max.col) { + vt100_screen_row_at(vt, vt->grid->cur.row)->wrapped = 1; + vt100_screen_move_to(vt, vt->grid->cur.row + 1, 0); + col = 0; + } + cell = vt100_screen_cell_at(vt, vt->grid->cur.row, col); + cell->is_wide = is_wide; + + cell->len = next - c; + memcpy(cell->contents, c, cell->len); + cell->attrs = vt->attrs; + + col += is_wide ? 2 : 1; + } + + c = next; + if ((size_t)(c - buf) >= len) { + break; + } + } + vt100_screen_move_to(vt, vt->grid->cur.row, col); + + vt->dirty = 1; +} + +void vt100_screen_move_to(VT100Screen *vt, int row, int col) +{ + int top = vt->grid->scroll_top, bottom = vt->grid->scroll_bottom; + + if (row > bottom) { + vt100_screen_scroll_down(vt, row - bottom); + row = bottom; + } + else if (row < top) { + vt100_screen_scroll_up(vt, top - row); + row = top; + } + + if (col < 0) { + col = 0; + } + + if (col > vt->grid->max.col) { + col = vt->grid->max.col; + } + + vt->grid->cur.row = row; + vt->grid->cur.col = col; +} + +void vt100_screen_clear_screen(VT100Screen *vt) +{ + int r; + + for (r = 0; r < vt->grid->max.row; ++r) { + struct vt100_row *row; + + row = vt100_screen_row_at(vt, r); + memset(row->cells, 0, vt->grid->max.col * sizeof(struct vt100_cell)); + row->wrapped = 0; + } + + vt->dirty = 1; +} + +void vt100_screen_clear_screen_forward(VT100Screen *vt) +{ + struct vt100_row *row; + int r; + + row = vt100_screen_row_at(vt, vt->grid->cur.row); + memset( + &row->cells[vt->grid->cur.col], 0, + (vt->grid->max.col - vt->grid->cur.col) * sizeof(struct vt100_cell)); + row->wrapped = 0; + for (r = vt->grid->cur.row + 1; r < vt->grid->max.row; ++r) { + row = vt100_screen_row_at(vt, r); + memset(row->cells, 0, vt->grid->max.col * sizeof(struct vt100_cell)); + row->wrapped = 0; + } + + vt->dirty = 1; +} + +void vt100_screen_clear_screen_backward(VT100Screen *vt) +{ + struct vt100_row *row; + int r; + + for (r = 0; r < vt->grid->cur.row - 1; ++r) { + row = vt100_screen_row_at(vt, r); + memset(row->cells, 0, vt->grid->max.col * sizeof(struct vt100_cell)); + row->wrapped = 0; + } + row = vt100_screen_row_at(vt, vt->grid->cur.row); + memset(row->cells, 0, vt->grid->cur.col * sizeof(struct vt100_cell)); + + vt->dirty = 1; +} + +void vt100_screen_kill_line(VT100Screen *vt) +{ + struct vt100_row *row; + + row = vt100_screen_row_at(vt, vt->grid->cur.row); + memset(row->cells, 0, vt->grid->max.col * sizeof(struct vt100_cell)); + row->wrapped = 0; + + vt->dirty = 1; +} + +void vt100_screen_kill_line_forward(VT100Screen *vt) +{ + struct vt100_row *row; + + row = vt100_screen_row_at(vt, vt->grid->cur.row); + memset( + &row->cells[vt->grid->cur.col], 0, + (vt->grid->max.col - vt->grid->cur.col) * sizeof(struct vt100_cell)); + row->wrapped = 0; + + vt->dirty = 1; +} + +void vt100_screen_kill_line_backward(VT100Screen *vt) +{ + struct vt100_row *row; + + row = vt100_screen_row_at(vt, vt->grid->cur.row); + memset(row->cells, 0, vt->grid->cur.col * sizeof(struct vt100_cell)); + if (vt->grid->cur.row > 0) { + row = vt100_screen_row_at(vt, vt->grid->cur.row - 1); + row->wrapped = 0; + } + + vt->dirty = 1; +} + +void vt100_screen_insert_characters(VT100Screen *vt, int count) +{ + struct vt100_row *row; + + row = vt100_screen_row_at(vt, vt->grid->cur.row); + if (count >= vt->grid->max.col - vt->grid->cur.col) { + vt100_screen_kill_line_forward(vt); + } + else { + memmove( + &row->cells[vt->grid->cur.col + count], + &row->cells[vt->grid->cur.col], + (vt->grid->max.col - vt->grid->cur.col - count) * sizeof(struct vt100_cell)); + memset( + &row->cells[vt->grid->cur.col], 0, + count * sizeof(struct vt100_cell)); + row->wrapped = 0; + } + + vt->dirty = 1; +} + +void vt100_screen_insert_lines(VT100Screen *vt, int count) +{ + if (count >= vt->grid->max.row - vt->grid->cur.row) { + vt100_screen_clear_screen_forward(vt); + vt100_screen_kill_line(vt); + } + else { + struct vt100_row *row; + int bottom = vt->grid->scroll_bottom + 1; + int i; + + for (i = bottom - count; i < bottom; ++i) { + row = vt100_screen_row_at(vt, i); + free(row->cells); + } + row = vt100_screen_row_at(vt, vt->grid->cur.row); + memmove( + row + count, row, + (bottom - vt->grid->cur.row - count) * sizeof(struct vt100_row)); + memset(row, 0, count * sizeof(struct vt100_row)); + for (i = vt->grid->cur.row; i < vt->grid->cur.row + count; ++i) { + row = vt100_screen_row_at(vt, i); + row->cells = calloc(vt->grid->max.col, sizeof(struct vt100_cell)); + row->wrapped = 0; + } + } + + vt->dirty = 1; +} + +void vt100_screen_delete_characters(VT100Screen *vt, int count) +{ + if (count >= vt->grid->max.col - vt->grid->cur.col) { + vt100_screen_kill_line_forward(vt); + } + else { + struct vt100_row *row; + + row = vt100_screen_row_at(vt, vt->grid->cur.row); + memmove( + &row->cells[vt->grid->cur.col], + &row->cells[vt->grid->cur.col + count], + (vt->grid->max.col - vt->grid->cur.col - count) * sizeof(struct vt100_cell)); + memset( + &row->cells[vt->grid->max.col - count], 0, + count * sizeof(struct vt100_cell)); + row->wrapped = 0; + } + + vt->dirty = 1; +} + +void vt100_screen_delete_lines(VT100Screen *vt, int count) +{ + if (count >= vt->grid->max.row - vt->grid->cur.row) { + vt100_screen_clear_screen_forward(vt); + vt100_screen_kill_line(vt); + } + else { + struct vt100_row *row; + int bottom = vt->grid->scroll_bottom + 1; + int i; + + for (i = vt->grid->cur.row; i < vt->grid->cur.row + count; ++i) { + row = vt100_screen_row_at(vt, i); + free(row->cells); + } + row = vt100_screen_row_at(vt, vt->grid->cur.row); + memmove( + row, row + count, + (bottom - vt->grid->cur.row - count) * sizeof(struct vt100_row)); + row = vt100_screen_row_at(vt, bottom - count); + memset(row, 0, count * sizeof(struct vt100_row)); + for (i = bottom - count; i < bottom; ++i) { + row = vt100_screen_row_at(vt, i); + row->cells = calloc(vt->grid->max.col, sizeof(struct vt100_cell)); + row->wrapped = 0; + } + } + + vt->dirty = 1; +} + +void vt100_screen_set_scroll_region( + VT100Screen *vt, int top, int bottom, int left, int right) +{ + if (left > 0 || right < vt->grid->max.col - 1) { + fprintf(stderr, "vertical scroll regions not yet implemented\n"); + } + + if (top > bottom) { + return; + } + + vt->grid->scroll_top = top < 0 + ? 0 + : top; + vt->grid->scroll_bottom = bottom >= vt->grid->max.row + ? vt->grid->max.row - 1 + : bottom; + + vt100_screen_move_to(vt, vt->grid->scroll_top, 0); +} + +void vt100_screen_reset_text_attributes(VT100Screen *vt) +{ + memset(&vt->attrs, 0, sizeof(struct vt100_cell_attrs)); +} + +void vt100_screen_set_fg_color(VT100Screen *vt, int idx) +{ + vt->attrs.fgcolor.type = VT100_COLOR_IDX; + vt->attrs.fgcolor.idx = idx; +} + +void vt100_screen_set_fg_color_rgb( + VT100Screen *vt, unsigned char r, unsigned char g, unsigned char b) +{ + vt->attrs.fgcolor.type = VT100_COLOR_RGB; + vt->attrs.fgcolor.r = r; + vt->attrs.fgcolor.g = g; + vt->attrs.fgcolor.b = b; +} + +void vt100_screen_reset_fg_color(VT100Screen *vt) +{ + vt->attrs.fgcolor.type = VT100_COLOR_DEFAULT; +} + +void vt100_screen_set_bg_color(VT100Screen *vt, int idx) +{ + vt->attrs.bgcolor.type = VT100_COLOR_IDX; + vt->attrs.bgcolor.idx = idx; +} + +void vt100_screen_set_bg_color_rgb( + VT100Screen *vt, unsigned char r, unsigned char g, unsigned char b) +{ + vt->attrs.bgcolor.type = VT100_COLOR_RGB; + vt->attrs.bgcolor.r = r; + vt->attrs.bgcolor.g = g; + vt->attrs.bgcolor.b = b; +} + +void vt100_screen_reset_bg_color(VT100Screen *vt) +{ + vt->attrs.bgcolor.type = VT100_COLOR_DEFAULT; +} + +void vt100_screen_set_bold(VT100Screen *vt) +{ + vt->attrs.bold = 1; +} + +void vt100_screen_set_italic(VT100Screen *vt) +{ + vt->attrs.italic = 1; +} + +void vt100_screen_set_underline(VT100Screen *vt) +{ + vt->attrs.underline = 1; +} + +void vt100_screen_set_inverse(VT100Screen *vt) +{ + vt->attrs.inverse = 1; +} + +void vt100_screen_reset_bold(VT100Screen *vt) +{ + vt->attrs.bold = 0; +} + +void vt100_screen_reset_italic(VT100Screen *vt) +{ + vt->attrs.italic = 0; +} + +void vt100_screen_reset_underline(VT100Screen *vt) +{ + vt->attrs.underline = 0; +} + +void vt100_screen_reset_inverse(VT100Screen *vt) +{ + vt->attrs.inverse = 0; +} + +void vt100_screen_use_alternate_buffer(VT100Screen *vt) +{ + if (vt->alternate) { + return; + } + + vt->alternate = vt->grid; + vt->grid = calloc(1, sizeof(struct vt100_grid)); + vt100_screen_set_window_size(vt); + + vt->dirty = 1; +} + +void vt100_screen_use_normal_buffer(VT100Screen *vt) +{ + int i; + + if (!vt->alternate) { + return; + } + + for (i = 0; i < vt->grid->row_count; ++i) { + free(vt->grid->rows[i].cells); + } + free(vt->grid->rows); + free(vt->grid); + + vt->grid = vt->alternate; + vt->alternate = NULL; + + vt100_screen_set_window_size(vt); + + vt->dirty = 1; +} + +void vt100_screen_save_cursor(VT100Screen *vt) +{ + vt->grid->saved = vt->grid->cur; +} + +void vt100_screen_restore_cursor(VT100Screen *vt) +{ + vt->grid->cur = vt->grid->saved; +} + +void vt100_screen_show_cursor(VT100Screen *vt) +{ + vt->hide_cursor = 0; +} + +void vt100_screen_hide_cursor(VT100Screen *vt) +{ + vt->hide_cursor = 1; +} + +void vt100_screen_set_application_keypad(VT100Screen *vt) +{ + vt->application_keypad = 1; +} + +void vt100_screen_reset_application_keypad(VT100Screen *vt) +{ + vt->application_keypad = 0; +} + +void vt100_screen_set_application_cursor(VT100Screen *vt) +{ + vt->application_cursor = 1; +} + +void vt100_screen_reset_application_cursor(VT100Screen *vt) +{ + vt->application_cursor = 0; +} + +void vt100_screen_set_mouse_reporting_press(VT100Screen *vt) +{ + vt->mouse_reporting_press = 1; +} + +void vt100_screen_reset_mouse_reporting_press(VT100Screen *vt) +{ + vt->mouse_reporting_press = 0; +} + +void vt100_screen_set_mouse_reporting_press_release(VT100Screen *vt) +{ + vt->mouse_reporting_press_release = 1; +} + +void vt100_screen_reset_mouse_reporting_press_release(VT100Screen *vt) +{ + vt->mouse_reporting_press_release = 0; +} + +void vt100_screen_set_bracketed_paste(VT100Screen *vt) +{ + vt->bracketed_paste = 1; +} + +void vt100_screen_reset_bracketed_paste(VT100Screen *vt) +{ + vt->bracketed_paste = 0; +} + +void vt100_screen_set_window_title(VT100Screen *vt, char *buf, size_t len) +{ + free(vt->title); + vt->title_len = len; + vt->title = malloc(vt->title_len); + memcpy(vt->title, buf, vt->title_len); + vt->update_title = 1; +} + +void vt100_screen_set_icon_name(VT100Screen *vt, char *buf, size_t len) +{ + free(vt->icon_name); + vt->icon_name_len = len; + vt->icon_name = malloc(vt->icon_name_len); + memcpy(vt->icon_name, buf, vt->icon_name_len); + vt->update_icon_name = 1; +} + +void vt100_screen_cleanup(VT100Screen *vt) +{ + int i; + + for (i = 0; i < vt->grid->row_count; ++i) { + free(vt->grid->rows[i].cells); + } + free(vt->grid->rows); + free(vt->grid); + + free(vt->title); + free(vt->icon_name); + + vt100_parser_yylex_destroy(vt->scanner); +} + +static void vt100_screen_ensure_capacity(VT100Screen *vt, int size) +{ + int old_capacity = vt->grid->row_capacity; + + if (vt->grid->row_capacity >= size) { + return; + } + + if (vt->grid->row_capacity == 0) { + vt->grid->row_capacity = vt->grid->max.row; + } + + while (vt->grid->row_capacity < size) { + vt->grid->row_capacity *= 1.5; + } + + vt->grid->rows = realloc( + vt->grid->rows, vt->grid->row_capacity * sizeof(struct vt100_row)); + memset( + &vt->grid->rows[old_capacity], 0, + (vt->grid->row_capacity - old_capacity) * sizeof(struct vt100_row)); +} + +static struct vt100_row *vt100_screen_row_at(VT100Screen *vt, int row) +{ + return &vt->grid->rows[row + vt->grid->row_top]; +} + +static struct vt100_cell *vt100_screen_cell_at(VT100Screen *vt, int row, int col) +{ + return &vt->grid->rows[row + vt->grid->row_top].cells[col]; +} + +static void vt100_screen_scroll_down(VT100Screen *vt, int count) +{ + struct vt100_row *row; + int i; + + if (vt100_screen_scroll_region_is_active(vt) || vt->alternate) { + int bottom = vt->grid->scroll_bottom, top = vt->grid->scroll_top; + + if (bottom - top + 1 > count) { + for (i = 0; i < count; ++i) { + row = vt100_screen_row_at(vt, top + i); + free(row->cells); + } + row = vt100_screen_row_at(vt, top); + memmove( + row, row + count, + (bottom - top + 1 - count) * sizeof(struct vt100_row)); + for (i = 0; i < count; ++i) { + row = vt100_screen_row_at(vt, bottom - i); + row->cells = calloc( + vt->grid->max.col, sizeof(struct vt100_cell)); + row->wrapped = 0; + } + } + else { + for (i = 0; i < bottom - top + 1; ++i) { + row = vt100_screen_row_at(vt, top + i); + memset( + row->cells, 0, + vt->grid->max.col * sizeof(struct vt100_cell)); + row->wrapped = 0; + } + } + } + else { + /* int scrollback = vt->config.scrollback_length; */ + int scrollback = 4096; // XXX vt100 + + if (vt->grid->row_count + count > scrollback) { + int overflow = vt->grid->row_count + count - scrollback; + + vt100_screen_ensure_capacity(vt, scrollback); + for (i = 0; i < overflow; ++i) { + free(vt->grid->rows[i].cells); + } + memmove( + &vt->grid->rows[0], &vt->grid->rows[overflow], + (scrollback - overflow) * sizeof(struct vt100_row)); + for (i = scrollback - count; i < scrollback; ++i) { + vt->grid->rows[i].cells = calloc( + vt->grid->max.col, sizeof(struct vt100_cell)); + } + vt->grid->row_count = scrollback; + vt->grid->row_top = scrollback - vt->grid->max.row; + } + else { + vt100_screen_ensure_capacity(vt, vt->grid->row_count + count); + for (i = 0; i < count; ++i) { + row = vt100_screen_row_at(vt, i + vt->grid->max.row); + row->cells = calloc( + vt->grid->max.col, sizeof(struct vt100_cell)); + } + vt->grid->row_count += count; + vt->grid->row_top += count; + } + } + + vt->dirty = 1; +} + +static void vt100_screen_scroll_up(VT100Screen *vt, int count) +{ + struct vt100_row *row; + int bottom = vt->grid->scroll_bottom, top = vt->grid->scroll_top; + int i; + + if (bottom - top + 1 > count) { + for (i = 0; i < count; ++i) { + row = vt100_screen_row_at(vt, bottom - i); + free(row->cells); + } + row = vt100_screen_row_at(vt, top); + memmove( + row + count, row, + (bottom - top + 1 - count) * sizeof(struct vt100_row)); + for (i = 0; i < count; ++i) { + row = vt100_screen_row_at(vt, top + i); + row->cells = calloc(vt->grid->max.col, sizeof(struct vt100_cell)); + row->wrapped = 0; + } + } + else { + for (i = 0; i < bottom - top + 1; ++i) { + row = vt100_screen_row_at(vt, top + i); + memset( + row->cells, 0, vt->grid->max.col * sizeof(struct vt100_cell)); + row->wrapped = 0; + } + } + + vt->dirty = 1; +} + +static int vt100_screen_scroll_region_is_active(VT100Screen *vt) +{ + return vt->grid->scroll_top != 0 + || vt->grid->scroll_bottom != vt->grid->max.row - 1; +} + +static int vt100_screen_loc_is_between( + VT100Screen *vt, struct vt100_loc loc, + struct vt100_loc start, struct vt100_loc end) +{ + UNUSED(vt); + + if (end.row < start.row || (end.row == start.row && end.col < start.col)) { + struct vt100_loc tmp; + + tmp = start; + start = end; + end = tmp; + } + + if (loc.row < start.row || loc.row > end.row) { + return 0; + } + + if (loc.row == start.row && loc.col < start.col) { + return 0; + } + + if (loc.row == end.row && loc.col >= end.col) { + return 0; + } + + return 1; +} + +static int vt100_screen_row_max_col(VT100Screen *vt, int row) +{ + struct vt100_cell *cells = vt->grid->rows[row].cells; + int i, max = -1; + + for (i = 0; i < vt->grid->max.col; ++i) { + if (cells[i].len) { + max = i; + } + } + + return max + 1; +} diff --git a/src/screen.h b/src/screen.h new file mode 100644 index 0000000..2ac4b9e --- /dev/null +++ b/src/screen.h @@ -0,0 +1,175 @@ +#ifndef _VT100_SCREEN_H +#define _VT100_SCREEN_H + +#include <stdint.h> + +enum VT100ColorType { + VT100_COLOR_DEFAULT, + VT100_COLOR_IDX, + VT100_COLOR_RGB +}; + +struct vt100_loc { + int row; + int col; +}; + +struct vt100_color { + union { + struct { + union { + struct { + unsigned char r; + unsigned char g; + unsigned char b; + }; + unsigned char idx; + }; + unsigned char type; + }; + uint32_t id; + }; +}; + +struct vt100_cell_attrs { + struct vt100_color fgcolor; + struct vt100_color bgcolor; + union { + struct { + unsigned char bold: 1; + unsigned char italic: 1; + unsigned char underline: 1; + unsigned char inverse: 1; + }; + unsigned char attrs; + }; +}; + +struct vt100_cell { + char contents[8]; + size_t len; + struct vt100_cell_attrs attrs; + unsigned char is_wide: 1; +}; + +struct vt100_row { + struct vt100_cell *cells; + unsigned char wrapped: 1; +}; + +struct vt100_grid { + struct vt100_loc cur; + struct vt100_loc max; + struct vt100_loc saved; + + struct vt100_loc selection_start; + struct vt100_loc selection_end; + + int scroll_top; + int scroll_bottom; + + int row_count; + int row_capacity; + int row_top; + + struct vt100_row *rows; +}; + +/* XXX including parser.h in a place which would be visible here breaks things, + * so we copy these defintions over here */ +typedef void* yyscan_t; +struct yy_buffer_state; +typedef struct yy_buffer_state *YY_BUFFER_STATE; + +struct vt100_screen { + struct vt100_grid *grid; + struct vt100_grid *alternate; + + char *title; + size_t title_len; + char *icon_name; + size_t icon_name_len; + + struct vt100_cell_attrs attrs; + + yyscan_t scanner; + YY_BUFFER_STATE state; + + unsigned char hide_cursor: 1; + unsigned char application_keypad: 1; + unsigned char application_cursor: 1; + unsigned char mouse_reporting_press: 1; + unsigned char mouse_reporting_press_release: 1; + unsigned char bracketed_paste: 1; + + unsigned char visual_bell: 1; + unsigned char audible_bell: 1; + unsigned char update_title: 1; + unsigned char update_icon_name: 1; + unsigned char has_selection: 1; + + unsigned char dirty: 1; +}; + +void vt100_screen_init(VT100Screen *vt); +void vt100_screen_set_window_size(VT100Screen *vt); +int vt100_screen_process_string(VT100Screen *vt, char *buf, size_t len); +int vt100_screen_loc_is_selected(VT100Screen *vt, struct vt100_loc loc); +void vt100_screen_get_string( + VT100Screen *vt, struct vt100_loc *start, struct vt100_loc *end, + char **strp, size_t *lenp); +void vt100_screen_audible_bell(VT100Screen *vt); +void vt100_screen_visual_bell(VT100Screen *vt); +void vt100_screen_show_string_ascii(VT100Screen *vt, char *buf, size_t len); +void vt100_screen_show_string_utf8(VT100Screen *vt, char *buf, size_t len); +void vt100_screen_move_to(VT100Screen *vt, int row, int col); +void vt100_screen_clear_screen(VT100Screen *vt); +void vt100_screen_clear_screen_forward(VT100Screen *vt); +void vt100_screen_clear_screen_backward(VT100Screen *vt); +void vt100_screen_kill_line(VT100Screen *vt); +void vt100_screen_kill_line_forward(VT100Screen *vt); +void vt100_screen_kill_line_backward(VT100Screen *vt); +void vt100_screen_insert_characters(VT100Screen *vt, int count); +void vt100_screen_insert_lines(VT100Screen *vt, int count); +void vt100_screen_delete_characters(VT100Screen *vt, int count); +void vt100_screen_delete_lines(VT100Screen *vt, int count); +void vt100_screen_set_scroll_region( + VT100Screen *vt, int top, int bottom, int left, int right); +void vt100_screen_reset_text_attributes(VT100Screen *vt); +void vt100_screen_set_fg_color(VT100Screen *vt, int idx); +void vt100_screen_set_fg_color_rgb( + VT100Screen *vt, unsigned char r, unsigned char g, unsigned char b); +void vt100_screen_reset_fg_color(VT100Screen *vt); +void vt100_screen_set_bg_color(VT100Screen *vt, int idx); +void vt100_screen_set_bg_color_rgb( + VT100Screen *vt, unsigned char r, unsigned char g, unsigned char b); +void vt100_screen_reset_bg_color(VT100Screen *vt); +void vt100_screen_set_bold(VT100Screen *vt); +void vt100_screen_set_italic(VT100Screen *vt); +void vt100_screen_set_underline(VT100Screen *vt); +void vt100_screen_set_inverse(VT100Screen *vt); +void vt100_screen_reset_bold(VT100Screen *vt); +void vt100_screen_reset_italic(VT100Screen *vt); +void vt100_screen_reset_underline(VT100Screen *vt); +void vt100_screen_reset_inverse(VT100Screen *vt); +void vt100_screen_use_alternate_buffer(VT100Screen *vt); +void vt100_screen_use_normal_buffer(VT100Screen *vt); +void vt100_screen_save_cursor(VT100Screen *vt); +void vt100_screen_restore_cursor(VT100Screen *vt); +void vt100_screen_show_cursor(VT100Screen *vt); +void vt100_screen_hide_cursor(VT100Screen *vt); +void vt100_screen_set_application_keypad(VT100Screen *vt); +void vt100_screen_reset_application_keypad(VT100Screen *vt); +void vt100_screen_set_application_cursor(VT100Screen *vt); +void vt100_screen_reset_application_cursor(VT100Screen *vt); +void vt100_screen_set_mouse_reporting_press(VT100Screen *vt); +void vt100_screen_reset_mouse_reporting_press(VT100Screen *vt); +void vt100_screen_set_mouse_reporting_press_release(VT100Screen *vt); +void vt100_screen_reset_mouse_reporting_press_release(VT100Screen *vt); +void vt100_screen_set_bracketed_paste(VT100Screen *vt); +void vt100_screen_reset_bracketed_paste(VT100Screen *vt); +void vt100_screen_set_window_title(VT100Screen *vt, char *buf, size_t len); +void vt100_screen_set_icon_name(VT100Screen *vt, char *buf, size_t len); +void vt100_screen_cleanup(VT100Screen *vt); + +#endif diff --git a/src/vt100.h b/src/vt100.h new file mode 100644 index 0000000..12bbb7c --- /dev/null +++ b/src/vt100.h @@ -0,0 +1,12 @@ +#ifndef _VT100_H +#define _VT100_H + +struct vt100_screen; + +typedef struct vt100_screen VT100Screen; + +#include "screen.h" + +#define UNUSED(x) ((void)x) + +#endif |