/* Generated by re2c 0.14.3 */
#line 1 "src/parser.re"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "vt100.h"
#include "parser.h"

#define UNUSED(x) ((void)x)

#ifdef VT100_DEBUG_TRACE
#define DEBUG_TRACE1(x) do { \
    fputs(x"\n", stderr); \
} while (0)
#define DEBUG_TRACE3(x, x2, x2len) do { \
    char old = (x2)[(x2len)]; \
    (x2)[(x2len)] = '\0'; \
    fprintf(stderr, x" %s\n", (x2)); \
    (x2)[(x2len)] = old; \
} while (0)
#else
#define DEBUG_TRACE1(x)
#define DEBUG_TRACE3(x, x2, x2len)
#endif

#define VT100_PARSER_CSI_MAX_PARAMS 256

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_cha(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_su(VT100Screen *vt, char *buf, size_t len);
static void vt100_parser_handle_sd(VT100Screen *vt, char *buf, size_t len);
static void vt100_parser_handle_ech(VT100Screen *vt, char *buf, size_t len);
static void vt100_parser_handle_vpa(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);
static void vt100_parser_ignore(VT100Screen *vt);

int vt100_parser_yylex(VT100Screen *vt, uint8_t *buf, size_t len)
{
    uint8_t *marker, *start = buf, *cursor = buf;

#define EXIT() { return cursor - buf; }
#define NEXT() { buf = cursor; continue; }
#define IGNORE() { vt100_parser_ignore(vt); NEXT() }
#define HANDLE1(x) { vt100_parser_handle_##x(vt); NEXT() }
#define HANDLE3(x) { vt100_parser_handle_##x(vt, (char*)buf, cursor - buf); NEXT() }

    while (buf - start < (ptrdiff_t)len) {

#line 87 "src/parser.c"
{
        uint8_t yych;
        unsigned int yyaccept = 0;

        yych = *cursor;
        if (yych <= 0x0F) {
                if (yych <= '\n') {
                        if (yych <= 0x07) {
                                if (yych >= 0x07) goto yy4;
                        } else {
                                if (yych <= 0x08) goto yy6;
                                if (yych <= '\t') goto yy8;
                                goto yy10;
                        }
                } else {
                        if (yych <= '\f') {
                                if (yych <= '\v') goto yy12;
                                goto yy14;
                        } else {
                                if (yych <= '\r') goto yy16;
                                if (yych >= 0x0F) goto yy18;
                        }
                }
        } else {
                if (yych <= 0x7F) {
                        if (yych <= 0x1B) {
                                if (yych >= 0x1B) goto yy20;
                        } else {
                                if (yych <= 0x1F) goto yy2;
                                if (yych <= '~') goto yy22;
                        }
                } else {
                        if (yych <= 0xDF) {
                                if (yych <= 0xBF) goto yy24;
                                goto yy26;
                        } else {
                                if (yych <= 0xEF) goto yy28;
                                if (yych <= 0xF7) goto yy30;
                                goto yy24;
                        }
                }
        }
yy2:
        ++cursor;
#line 272 "src/parser.re"
        {
    fprintf(stderr, "unhandled control character: \\%03hho\n", buf[0]);
    NEXT()
}
#line 137 "src/parser.c"
yy4:
        ++cursor;
#line 161 "src/parser.re"
        HANDLE1(bel)
#line 142 "src/parser.c"
yy6:
        ++cursor;
#line 162 "src/parser.re"
        HANDLE1(bs)
#line 147 "src/parser.c"
yy8:
        ++cursor;
#line 163 "src/parser.re"
        HANDLE1(tab)
#line 152 "src/parser.c"
yy10:
        ++cursor;
#line 164 "src/parser.re"
        HANDLE1(lf)
#line 157 "src/parser.c"
yy12:
        ++cursor;
#line 165 "src/parser.re"
        HANDLE1(lf)
#line 162 "src/parser.c"
yy14:
        ++cursor;
#line 166 "src/parser.re"
        HANDLE1(lf)
#line 167 "src/parser.c"
yy16:
        ++cursor;
#line 167 "src/parser.re"
        HANDLE1(cr)
#line 172 "src/parser.c"
yy18:
        ++cursor;
#line 168 "src/parser.re"
        IGNORE()
#line 177 "src/parser.c"
yy20:
        yyaccept = 0;
        yych = *(marker = ++cursor);
        if (yych <= 'M') {
                if (yych <= '6') {
                        if (yych <= '(') {
                                if (yych <= 0x1F) goto yy74;
                                if (yych <= '\'') goto yy47;
                                goto yy49;
                        } else {
                                if (yych <= ')') goto yy50;
                                if (yych <= '*') goto yy51;
                                if (yych <= '+') goto yy52;
                                goto yy47;
                        }
                } else {
                        if (yych <= '<') {
                                if (yych <= '7') goto yy53;
                                if (yych <= '8') goto yy55;
                                goto yy47;
                        } else {
                                if (yych <= '=') goto yy57;
                                if (yych <= '>') goto yy59;
                                if (yych <= 'L') goto yy47;
                                goto yy61;
                        }
                }
        } else {
                if (yych <= 'f') {
                        if (yych <= '\\') {
                                if (yych == '[') goto yy63;
                                goto yy47;
                        } else {
                                if (yych <= ']') goto yy65;
                                if (yych == 'c') goto yy67;
                                goto yy47;
                        }
                } else {
                        if (yych <= 0xBF) {
                                if (yych <= 'g') goto yy69;
                                if (yych <= '~') goto yy47;
                                if (yych <= 0x7F) goto yy74;
                        } else {
                                if (yych <= 0xDF) goto yy71;
                                if (yych <= 0xEF) goto yy72;
                                if (yych <= 0xF7) goto yy73;
                        }
                }
        }
yy21:
#line 219 "src/parser.re"
        EXIT()
#line 230 "src/parser.c"
yy22:
        yyaccept = 1;
        yych = *(marker = ++cursor);
        goto yy46;
yy23:
#line 211 "src/parser.re"
        HANDLE3(ascii)
#line 238 "src/parser.c"
yy24:
        ++cursor;
#line 277 "src/parser.re"
        {
    fprintf(stderr, "invalid utf8 byte: \\%03hho\n", buf[0]);
    NEXT()
}
#line 246 "src/parser.c"
yy26:
        ++cursor;
        if ((yych = *cursor) <= 0x7F) goto yy27;
        if (yych <= 0xBF) goto yy34;
yy27:
#line 214 "src/parser.re"
        EXIT()
#line 254 "src/parser.c"
yy28:
        ++cursor;
        if ((yych = *cursor) <= 0x7F) goto yy29;
        if (yych <= 0xBF) goto yy44;
yy29:
#line 215 "src/parser.re"
        EXIT()
#line 262 "src/parser.c"
yy30:
        ++cursor;
        if ((yych = *cursor) <= 0x7F) goto yy31;
        if (yych <= 0xBF) goto yy32;
yy31:
#line 216 "src/parser.re"
        EXIT()
#line 270 "src/parser.c"
yy32:
        yych = *++cursor;
        if (yych <= 0x7F) goto yy31;
        if (yych >= 0xC0) goto yy31;
        yych = *++cursor;
        if (yych <= 0x7F) goto yy31;
        if (yych >= 0xC0) goto yy31;
yy34:
        yyaccept = 2;
        marker = ++cursor;
        yych = *cursor;
        if (yych <= 0xBF) {
                if (yych <= 0x1F) goto yy36;
                if (yych <= '~') goto yy34;
        } else {
                if (yych <= 0xDF) goto yy37;
                if (yych <= 0xEF) goto yy39;
                if (yych <= 0xF7) goto yy40;
        }
yy36:
#line 212 "src/parser.re"
        HANDLE3(text)
#line 293 "src/parser.c"
yy37:
        ++cursor;
        yych = *cursor;
        if (yych <= 0x7F) goto yy38;
        if (yych <= 0xBF) goto yy34;
yy38:
        cursor = marker;
        if (yyaccept <= 2) {
                if (yyaccept <= 1) {
                        if (yyaccept == 0) {
                                goto yy21;
                        } else {
                                goto yy23;
                        }
                } else {
                        goto yy36;
                }
        } else {
                if (yyaccept <= 4) {
                        if (yyaccept == 3) {
                                goto yy48;
                        } else {
                                goto yy64;
                        }
                } else {
                        goto yy66;
                }
        }
yy39:
        ++cursor;
        yych = *cursor;
        if (yych <= 0x7F) goto yy38;
        if (yych <= 0xBF) goto yy43;
        goto yy38;
yy40:
        ++cursor;
        yych = *cursor;
        if (yych <= 0x7F) goto yy38;
        if (yych >= 0xC0) goto yy38;
        ++cursor;
        yych = *cursor;
        if (yych <= 0x7F) goto yy38;
        if (yych >= 0xC0) goto yy38;
        ++cursor;
        yych = *cursor;
        if (yych <= 0x7F) goto yy38;
        if (yych <= 0xBF) goto yy34;
        goto yy38;
yy43:
        ++cursor;
        yych = *cursor;
        if (yych <= 0x7F) goto yy38;
        if (yych <= 0xBF) goto yy34;
        goto yy38;
yy44:
        yych = *++cursor;
        if (yych <= 0x7F) goto yy29;
        if (yych <= 0xBF) goto yy34;
        goto yy29;
yy45:
        yyaccept = 1;
        marker = ++cursor;
        yych = *cursor;
yy46:
        if (yych <= 0xBF) {
                if (yych <= 0x1F) goto yy23;
                if (yych <= '~') goto yy45;
                goto yy23;
        } else {
                if (yych <= 0xDF) goto yy37;
                if (yych <= 0xEF) goto yy39;
                if (yych <= 0xF7) goto yy40;
                goto yy23;
        }
yy47:
        ++cursor;
yy48:
#line 258 "src/parser.re"
        {
    switch (buf[1]) {
    case '(': // character sets
        // not interested in implementing character sets, unicode should be
        // sufficient
        break;
    default: {
        fprintf(stderr, "unhandled escape sequence: \\033%c\n", buf[1]);
        break;
    }
    }
    NEXT()
}
#line 385 "src/parser.c"
yy49:
        yyaccept = 3;
        yych = *(marker = ++cursor);
        if (yych <= 0x1F) goto yy48;
        if (yych <= '~') goto yy224;
        goto yy48;
yy50:
        yyaccept = 3;
        yych = *(marker = ++cursor);
        if (yych <= 0x1F) goto yy48;
        if (yych <= '~') goto yy220;
        goto yy48;
yy51:
        yyaccept = 3;
        yych = *(marker = ++cursor);
        if (yych <= 0x1F) goto yy48;
        if (yych <= '~') goto yy216;
        goto yy48;
yy52:
        yyaccept = 3;
        yych = *(marker = ++cursor);
        if (yych <= 0x1F) goto yy48;
        if (yych <= '~') goto yy212;
        goto yy48;
yy53:
        ++cursor;
#line 175 "src/parser.re"
        HANDLE1(decsc)
#line 414 "src/parser.c"
yy55:
        ++cursor;
#line 176 "src/parser.re"
        HANDLE1(decrc)
#line 419 "src/parser.c"
yy57:
        ++cursor;
#line 170 "src/parser.re"
        HANDLE1(deckpam)
#line 424 "src/parser.c"
yy59:
        ++cursor;
#line 171 "src/parser.re"
        HANDLE1(deckpnm)
#line 429 "src/parser.c"
yy61:
        ++cursor;
#line 172 "src/parser.re"
        HANDLE1(ri)
#line 434 "src/parser.c"
yy63:
        yyaccept = 4;
        yych = *(marker = ++cursor);
        if (yych <= '>') {
                if (yych <= ':') goto yy123;
                if (yych <= ';') goto yy166;
                if (yych <= '=') goto yy156;
                goto yy123;
        } else {
                if (yych <= '?') goto yy157;
                if (yych == 'r') goto yy164;
                goto yy123;
        }
yy64:
#line 217 "src/parser.re"
        EXIT()
#line 451 "src/parser.c"
yy65:
        yyaccept = 5;
        yych = *(marker = ++cursor);
        if (yych <= '/') goto yy83;
        if (yych <= '0') goto yy79;
        if (yych <= '1') goto yy80;
        if (yych <= '2') goto yy81;
        goto yy83;
yy66:
#line 218 "src/parser.re"
        EXIT()
#line 463 "src/parser.c"
yy67:
        ++cursor;
#line 173 "src/parser.re"
        HANDLE1(ris)
#line 468 "src/parser.c"
yy69:
        ++cursor;
#line 174 "src/parser.re"
        HANDLE1(vb)
#line 473 "src/parser.c"
yy71:
        yych = *++cursor;
        if (yych <= 0x7F) goto yy38;
        if (yych <= 0xBF) goto yy47;
        goto yy38;
yy72:
        yych = *++cursor;
        if (yych <= 0x7F) goto yy38;
        if (yych <= 0xBF) goto yy78;
        goto yy38;
yy73:
        yych = *++cursor;
        if (yych <= 0x7F) goto yy38;
        if (yych <= 0xBF) goto yy76;
        goto yy38;
yy74:
        ++cursor;
#line 253 "src/parser.re"
        {
    fprintf(stderr, "unhandled escape sequence: \\033\\%03hho\n", buf[1]);
    NEXT()
}
#line 496 "src/parser.c"
yy76:
        yych = *++cursor;
        if (yych <= 0x7F) goto yy38;
        if (yych >= 0xC0) goto yy38;
        yych = *++cursor;
        if (yych <= 0x7F) goto yy38;
        if (yych <= 0xBF) goto yy47;
        goto yy38;
yy78:
        yych = *++cursor;
        if (yych <= 0x7F) goto yy38;
        if (yych <= 0xBF) goto yy47;
        goto yy38;
yy79:
        yyaccept = 5;
        yych = *(marker = ++cursor);
        if (yych == ';') goto yy112;
        goto yy83;
yy80:
        yyaccept = 5;
        yych = *(marker = ++cursor);
        if (yych == ';') goto yy102;
        goto yy83;
yy81:
        yyaccept = 5;
        yych = *(marker = ++cursor);
        if (yych == ';') goto yy92;
        goto yy83;
yy82:
        yyaccept = 5;
        marker = ++cursor;
        yych = *cursor;
yy83:
        if (yych <= '~') {
                if (yych == 0x07) goto yy87;
                if (yych <= 0x1F) goto yy66;
                goto yy82;
        } else {
                if (yych <= 0xDF) {
                        if (yych <= 0xBF) goto yy66;
                } else {
                        if (yych <= 0xEF) goto yy85;
                        if (yych <= 0xF7) goto yy86;
                        goto yy66;
                }
        }
        ++cursor;
        yych = *cursor;
        if (yych <= 0x7F) goto yy38;
        if (yych <= 0xBF) goto yy82;
        goto yy38;
yy85:
        ++cursor;
        yych = *cursor;
        if (yych <= 0x7F) goto yy38;
        if (yych <= 0xBF) goto yy91;
        goto yy38;
yy86:
        ++cursor;
        yych = *cursor;
        if (yych <= 0x7F) goto yy38;
        if (yych <= 0xBF) goto yy89;
        goto yy38;
yy87:
        ++cursor;
#line 237 "src/parser.re"
        {
    if (!strncmp((char*)buf, "\e]50;", 5)) { // osx terminal.app private stuff
        // not interested in non-portable extensions
    }
    else if (!strncmp((char*)buf, "\e]499;", 5)) { // termcast private metadata
        // this isn't intended to be interpreted
    }
    else {
        char c = *cursor;
        *cursor = '\0';
        fprintf(stderr, "unhandled OSC sequence: \\033%s\\007\n", buf + 1);
        *cursor = c;
    }
    NEXT()
}
#line 578 "src/parser.c"
yy89:
        ++cursor;
        yych = *cursor;
        if (yych <= 0x7F) goto yy38;
        if (yych >= 0xC0) goto yy38;
        ++cursor;
        yych = *cursor;
        if (yych <= 0x7F) goto yy38;
        if (yych <= 0xBF) goto yy82;
        goto yy38;
yy91:
        ++cursor;
        yych = *cursor;
        if (yych <= 0x7F) goto yy38;
        if (yych <= 0xBF) goto yy82;
        goto yy38;
yy92:
        yyaccept = 5;
        marker = ++cursor;
        yych = *cursor;
        if (yych <= '~') {
                if (yych == 0x07) goto yy97;
                if (yych <= 0x1F) goto yy66;
                goto yy92;
        } else {
                if (yych <= 0xDF) {
                        if (yych <= 0xBF) goto yy66;
                } else {
                        if (yych <= 0xEF) goto yy95;
                        if (yych <= 0xF7) goto yy96;
                        goto yy66;
                }
        }
        ++cursor;
        yych = *cursor;
        if (yych <= 0x7F) goto yy38;
        if (yych <= 0xBF) goto yy92;
        goto yy38;
yy95:
        ++cursor;
        yych = *cursor;
        if (yych <= 0x7F) goto yy38;
        if (yych <= 0xBF) goto yy101;
        goto yy38;
yy96:
        ++cursor;
        yych = *cursor;
        if (yych <= 0x7F) goto yy38;
        if (yych <= 0xBF) goto yy99;
        goto yy38;
yy97:
        ++cursor;
#line 204 "src/parser.re"
        HANDLE3(osc2)
#line 633 "src/parser.c"
yy99:
        ++cursor;
        yych = *cursor;
        if (yych <= 0x7F) goto yy38;
        if (yych >= 0xC0) goto yy38;
        ++cursor;
        yych = *cursor;
        if (yych <= 0x7F) goto yy38;
        if (yych <= 0xBF) goto yy92;
        goto yy38;
yy101:
        ++cursor;
        yych = *cursor;
        if (yych <= 0x7F) goto yy38;
        if (yych <= 0xBF) goto yy92;
        goto yy38;
yy102:
        yyaccept = 5;
        marker = ++cursor;
        yych = *cursor;
        if (yych <= '~') {
                if (yych == 0x07) goto yy107;
                if (yych <= 0x1F) goto yy66;
                goto yy102;
        } else {
                if (yych <= 0xDF) {
                        if (yych <= 0xBF) goto yy66;
                } else {
                        if (yych <= 0xEF) goto yy105;
                        if (yych <= 0xF7) goto yy106;
                        goto yy66;
                }
        }
        ++cursor;
        yych = *cursor;
        if (yych <= 0x7F) goto yy38;
        if (yych <= 0xBF) goto yy102;
        goto yy38;
yy105:
        ++cursor;
        yych = *cursor;
        if (yych <= 0x7F) goto yy38;
        if (yych <= 0xBF) goto yy111;
        goto yy38;
yy106:
        ++cursor;
        yych = *cursor;
        if (yych <= 0x7F) goto yy38;
        if (yych <= 0xBF) goto yy109;
        goto yy38;
yy107:
        ++cursor;
#line 203 "src/parser.re"
        HANDLE3(osc1)
#line 688 "src/parser.c"
yy109:
        ++cursor;
        yych = *cursor;
        if (yych <= 0x7F) goto yy38;
        if (yych >= 0xC0) goto yy38;
        ++cursor;
        yych = *cursor;
        if (yych <= 0x7F) goto yy38;
        if (yych <= 0xBF) goto yy102;
        goto yy38;
yy111:
        ++cursor;
        yych = *cursor;
        if (yych <= 0x7F) goto yy38;
        if (yych <= 0xBF) goto yy102;
        goto yy38;
yy112:
        yyaccept = 5;
        marker = ++cursor;
        yych = *cursor;
        if (yych <= '~') {
                if (yych == 0x07) goto yy117;
                if (yych <= 0x1F) goto yy66;
                goto yy112;
        } else {
                if (yych <= 0xDF) {
                        if (yych <= 0xBF) goto yy66;
                } else {
                        if (yych <= 0xEF) goto yy115;
                        if (yych <= 0xF7) goto yy116;
                        goto yy66;
                }
        }
        ++cursor;
        yych = *cursor;
        if (yych <= 0x7F) goto yy38;
        if (yych <= 0xBF) goto yy112;
        goto yy38;
yy115:
        ++cursor;
        yych = *cursor;
        if (yych <= 0x7F) goto yy38;
        if (yych <= 0xBF) goto yy121;
        goto yy38;
yy116:
        ++cursor;
        yych = *cursor;
        if (yych <= 0x7F) goto yy38;
        if (yych <= 0xBF) goto yy119;
        goto yy38;
yy117:
        ++cursor;
#line 202 "src/parser.re"
        HANDLE3(osc0)
#line 743 "src/parser.c"
yy119:
        ++cursor;
        yych = *cursor;
        if (yych <= 0x7F) goto yy38;
        if (yych >= 0xC0) goto yy38;
        ++cursor;
        yych = *cursor;
        if (yych <= 0x7F) goto yy38;
        if (yych <= 0xBF) goto yy112;
        goto yy38;
yy121:
        ++cursor;
        yych = *cursor;
        if (yych <= 0x7F) goto yy38;
        if (yych <= 0xBF) goto yy112;
        goto yy38;
yy122:
        yyaccept = 4;
        marker = ++cursor;
        yych = *cursor;
yy123:
        if (yych <= 'O') {
                if (yych <= 'C') {
                        if (yych <= ';') {
                                if (yych <= '/') {
                                        if (yych <= 0x1F) goto yy167;
                                        goto yy169;
                                } else {
                                        if (yych <= '9') goto yy122;
                                        if (yych <= ':') goto yy169;
                                        goto yy195;
                                }
                        } else {
                                if (yych <= '@') {
                                        if (yych <= '?') goto yy169;
                                } else {
                                        if (yych <= 'A') goto yy126;
                                        if (yych <= 'B') goto yy128;
                                        goto yy130;
                                }
                        }
                } else {
                        if (yych <= 'I') {
                                if (yych <= 'F') {
                                        if (yych <= 'D') goto yy132;
                                        goto yy169;
                                } else {
                                        if (yych <= 'G') goto yy134;
                                        if (yych <= 'H') goto yy136;
                                        goto yy169;
                                }
                        } else {
                                if (yych <= 'K') {
                                        if (yych <= 'J') goto yy138;
                                        goto yy140;
                                } else {
                                        if (yych <= 'L') goto yy142;
                                        if (yych <= 'M') goto yy144;
                                        goto yy169;
                                }
                        }
                }
        } else {
                if (yych <= 'h') {
                        if (yych <= 'W') {
                                if (yych <= 'R') {
                                        if (yych <= 'P') goto yy146;
                                        goto yy169;
                                } else {
                                        if (yych <= 'S') goto yy148;
                                        if (yych <= 'T') goto yy150;
                                        goto yy169;
                                }
                        } else {
                                if (yych <= 'c') {
                                        if (yych <= 'X') goto yy152;
                                        goto yy169;
                                } else {
                                        if (yych <= 'd') goto yy154;
                                        if (yych <= 'g') goto yy169;
                                        goto yy158;
                                }
                        }
                } else {
                        if (yych <= 0x7F) {
                                if (yych <= 'l') {
                                        if (yych <= 'k') goto yy169;
                                        goto yy160;
                                } else {
                                        if (yych <= 'm') goto yy162;
                                        if (yych <= '~') goto yy169;
                                        goto yy167;
                                }
                        } else {
                                if (yych <= 0xDF) {
                                        if (yych <= 0xBF) goto yy64;
                                        goto yy171;
                                } else {
                                        if (yych <= 0xEF) goto yy172;
                                        if (yych <= 0xF7) goto yy173;
                                        goto yy64;
                                }
                        }
                }
        }
        ++cursor;
#line 178 "src/parser.re"
        HANDLE3(ich)
#line 852 "src/parser.c"
yy126:
        ++cursor;
#line 179 "src/parser.re"
        HANDLE3(cuu)
#line 857 "src/parser.c"
yy128:
        ++cursor;
#line 180 "src/parser.re"
        HANDLE3(cud)
#line 862 "src/parser.c"
yy130:
        ++cursor;
#line 181 "src/parser.re"
        HANDLE3(cuf)
#line 867 "src/parser.c"
yy132:
        ++cursor;
#line 182 "src/parser.re"
        HANDLE3(cub)
#line 872 "src/parser.c"
yy134:
        ++cursor;
#line 183 "src/parser.re"
        HANDLE3(cha)
#line 877 "src/parser.c"
yy136:
        ++cursor;
#line 184 "src/parser.re"
        HANDLE3(cup)
#line 882 "src/parser.c"
yy138:
        ++cursor;
#line 185 "src/parser.re"
        HANDLE3(ed)
#line 887 "src/parser.c"
yy140:
        ++cursor;
#line 186 "src/parser.re"
        HANDLE3(el)
#line 892 "src/parser.c"
yy142:
        ++cursor;
#line 187 "src/parser.re"
        HANDLE3(il)
#line 897 "src/parser.c"
yy144:
        ++cursor;
#line 188 "src/parser.re"
        HANDLE3(dl)
#line 902 "src/parser.c"
yy146:
        ++cursor;
#line 189 "src/parser.re"
        HANDLE3(dch)
#line 907 "src/parser.c"
yy148:
        ++cursor;
#line 190 "src/parser.re"
        HANDLE3(su)
#line 912 "src/parser.c"
yy150:
        ++cursor;
#line 191 "src/parser.re"
        HANDLE3(sd)
#line 917 "src/parser.c"
yy152:
        ++cursor;
#line 192 "src/parser.re"
        HANDLE3(ech)
#line 922 "src/parser.c"
yy154:
        ++cursor;
#line 193 "src/parser.re"
        HANDLE3(vpa)
#line 927 "src/parser.c"
yy156:
        yyaccept = 4;
        yych = *(marker = ++cursor);
        if (yych <= 'g') {
                if (yych == ';') goto yy166;
                goto yy194;
        } else {
                if (yych <= 'h') goto yy169;
                if (yych == 'l') goto yy169;
                goto yy194;
        }
yy157:
        yyaccept = 4;
        yych = *(marker = ++cursor);
        if (yych <= 'g') {
                if (yych == ';') goto yy166;
                goto yy178;
        } else {
                if (yych <= 'h') goto yy169;
                if (yych == 'l') goto yy169;
                goto yy178;
        }
yy158:
        ++cursor;
yy159:
#line 194 "src/parser.re"
        HANDLE3(sm)
#line 955 "src/parser.c"
yy160:
        ++cursor;
yy161:
#line 195 "src/parser.re"
        HANDLE3(rm)
#line 961 "src/parser.c"
yy162:
        ++cursor;
#line 196 "src/parser.re"
        HANDLE3(sgr)
#line 966 "src/parser.c"
yy164:
        ++cursor;
#line 197 "src/parser.re"
        HANDLE3(csr)
#line 971 "src/parser.c"
yy166:
        yych = *++cursor;
        goto yy64;
yy167:
        ++cursor;
#line 221 "src/parser.re"
        {
    char c = *cursor;
    *cursor = '\0';
    fprintf(stderr, "unhandled CSI sequence: \\033%s\\%03hho\n", buf + 1, c);
    *cursor = c;
    NEXT()
}
#line 985 "src/parser.c"
yy169:
        ++cursor;
#line 229 "src/parser.re"
        {
    char c = *cursor;
    *cursor = '\0';
    fprintf(stderr, "unhandled CSI sequence: \\033%s%c\n", buf + 1, c);
    *cursor = c;
    NEXT()
}
#line 996 "src/parser.c"
yy171:
        yych = *++cursor;
        if (yych <= 0x7F) goto yy38;
        if (yych <= 0xBF) goto yy169;
        goto yy38;
yy172:
        yych = *++cursor;
        if (yych <= 0x7F) goto yy38;
        if (yych <= 0xBF) goto yy176;
        goto yy38;
yy173:
        yych = *++cursor;
        if (yych <= 0x7F) goto yy38;
        if (yych >= 0xC0) goto yy38;
        yych = *++cursor;
        if (yych <= 0x7F) goto yy38;
        if (yych >= 0xC0) goto yy38;
        yych = *++cursor;
        if (yych <= 0x7F) goto yy38;
        if (yych <= 0xBF) goto yy169;
        goto yy38;
yy176:
        yych = *++cursor;
        if (yych <= 0x7F) goto yy38;
        if (yych <= 0xBF) goto yy169;
        goto yy38;
yy177:
        yyaccept = 4;
        marker = ++cursor;
        yych = *cursor;
yy178:
        if (yych <= 'g') {
                if (yych <= ':') {
                        if (yych <= 0x1F) goto yy167;
                        if (yych <= '/') goto yy169;
                        if (yych <= '9') goto yy177;
                        goto yy169;
                } else {
                        if (yych <= 'I') {
                                if (yych <= ';') goto yy183;
                                goto yy169;
                        } else {
                                if (yych <= 'J') goto yy179;
                                if (yych <= 'K') goto yy181;
                                goto yy169;
                        }
                }
        } else {
                if (yych <= 0x7F) {
                        if (yych <= 'k') {
                                if (yych <= 'h') goto yy158;
                                goto yy169;
                        } else {
                                if (yych <= 'l') goto yy160;
                                if (yych <= '~') goto yy169;
                                goto yy167;
                        }
                } else {
                        if (yych <= 0xDF) {
                                if (yych <= 0xBF) goto yy64;
                                goto yy171;
                        } else {
                                if (yych <= 0xEF) goto yy172;
                                if (yych <= 0xF7) goto yy173;
                                goto yy64;
                        }
                }
        }
yy179:
        ++cursor;
#line 199 "src/parser.re"
        HANDLE3(decsed)
#line 1069 "src/parser.c"
yy181:
        ++cursor;
#line 200 "src/parser.re"
        HANDLE3(decsel)
#line 1074 "src/parser.c"
yy183:
        yyaccept = 4;
        marker = ++cursor;
        yych = *cursor;
        if (yych <= ';') {
                if (yych <= '/') goto yy64;
                if (yych >= ':') goto yy64;
        } else {
                if (yych == '>') goto yy64;
                if (yych <= '?') goto yy185;
                goto yy64;
        }
        yyaccept = 4;
        marker = ++cursor;
        yych = *cursor;
        if (yych <= 'k') {
                if (yych <= ':') {
                        if (yych <= 0x1F) goto yy167;
                        if (yych <= '/') goto yy169;
                        if (yych <= '9') goto yy191;
                        goto yy169;
                } else {
                        if (yych <= ';') goto yy183;
                        if (yych == 'h') goto yy158;
                        goto yy169;
                }
        } else {
                if (yych <= 0xBF) {
                        if (yych <= 'l') goto yy160;
                        if (yych <= '~') goto yy169;
                        if (yych <= 0x7F) goto yy167;
                        goto yy64;
                } else {
                        if (yych <= 0xDF) goto yy171;
                        if (yych <= 0xEF) goto yy172;
                        if (yych <= 0xF7) goto yy173;
                        goto yy64;
                }
        }
yy185:
        ++cursor;
        yych = *cursor;
        if (yych <= '/') goto yy38;
        if (yych >= ':') goto yy38;
yy186:
        ++cursor;
        yych = *cursor;
        if (yych <= ';') {
                if (yych <= '/') goto yy38;
                if (yych <= '9') goto yy186;
                if (yych <= ':') goto yy38;
                goto yy189;
        } else {
                if (yych <= 'h') {
                        if (yych <= 'g') goto yy38;
                        goto yy190;
                } else {
                        if (yych != 'l') goto yy38;
                }
        }
        yych = *++cursor;
        goto yy161;
yy189:
        ++cursor;
        yych = *cursor;
        if (yych <= ';') {
                if (yych <= '/') goto yy38;
                if (yych <= '9') goto yy186;
                goto yy38;
        } else {
                if (yych == '>') goto yy38;
                if (yych <= '?') goto yy185;
                goto yy38;
        }
yy190:
        yych = *++cursor;
        goto yy159;
yy191:
        yyaccept = 4;
        marker = ++cursor;
        yych = *cursor;
        if (yych <= 'k') {
                if (yych <= ':') {
                        if (yych <= 0x1F) goto yy167;
                        if (yych <= '/') goto yy169;
                        if (yych <= '9') goto yy191;
                        goto yy169;
                } else {
                        if (yych <= ';') goto yy183;
                        if (yych == 'h') goto yy158;
                        goto yy169;
                }
        } else {
                if (yych <= 0xBF) {
                        if (yych <= 'l') goto yy160;
                        if (yych <= '~') goto yy169;
                        if (yych <= 0x7F) goto yy167;
                        goto yy64;
                } else {
                        if (yych <= 0xDF) goto yy171;
                        if (yych <= 0xEF) goto yy172;
                        if (yych <= 0xF7) goto yy173;
                        goto yy64;
                }
        }
yy193:
        yyaccept = 4;
        marker = ++cursor;
        yych = *cursor;
yy194:
        if (yych <= 'k') {
                if (yych <= ':') {
                        if (yych <= 0x1F) goto yy167;
                        if (yych <= '/') goto yy169;
                        if (yych <= '9') goto yy193;
                        goto yy169;
                } else {
                        if (yych <= ';') goto yy183;
                        if (yych == 'h') goto yy158;
                        goto yy169;
                }
        } else {
                if (yych <= 0xBF) {
                        if (yych <= 'l') goto yy160;
                        if (yych <= '~') goto yy169;
                        if (yych <= 0x7F) goto yy167;
                        goto yy64;
                } else {
                        if (yych <= 0xDF) goto yy171;
                        if (yych <= 0xEF) goto yy172;
                        if (yych <= 0xF7) goto yy173;
                        goto yy64;
                }
        }
yy195:
        yyaccept = 4;
        yych = *(marker = ++cursor);
        if (yych <= ';') {
                if (yych <= '/') goto yy64;
                if (yych >= ':') goto yy64;
        } else {
                if (yych == '>') goto yy64;
                if (yych <= '?') goto yy185;
                goto yy64;
        }
        yyaccept = 4;
        yych = *(marker = ++cursor);
        goto yy198;
yy197:
        yyaccept = 4;
        marker = ++cursor;
        yych = *cursor;
yy198:
        if (yych <= 'k') {
                if (yych <= ';') {
                        if (yych <= '/') {
                                if (yych <= 0x1F) goto yy167;
                                goto yy169;
                        } else {
                                if (yych <= '9') goto yy197;
                                if (yych <= ':') goto yy169;
                        }
                } else {
                        if (yych <= 'H') {
                                if (yych <= 'G') goto yy169;
                                goto yy136;
                        } else {
                                if (yych == 'h') goto yy158;
                                goto yy169;
                        }
                }
        } else {
                if (yych <= '~') {
                        if (yych <= 'm') {
                                if (yych <= 'l') goto yy160;
                                goto yy162;
                        } else {
                                if (yych == 'r') goto yy164;
                                goto yy169;
                        }
                } else {
                        if (yych <= 0xDF) {
                                if (yych <= 0x7F) goto yy167;
                                if (yych <= 0xBF) goto yy64;
                                goto yy171;
                        } else {
                                if (yych <= 0xEF) goto yy172;
                                if (yych <= 0xF7) goto yy173;
                                goto yy64;
                        }
                }
        }
        yyaccept = 4;
        yych = *(marker = ++cursor);
        if (yych <= ';') {
                if (yych <= '/') goto yy64;
                if (yych >= ':') goto yy64;
        } else {
                if (yych == '>') goto yy64;
                if (yych <= '?') goto yy185;
                goto yy64;
        }
        yyaccept = 4;
        yych = *(marker = ++cursor);
        goto yy202;
yy201:
        yyaccept = 4;
        marker = ++cursor;
        yych = *cursor;
yy202:
        if (yych <= 'l') {
                if (yych <= ':') {
                        if (yych <= 0x1F) goto yy167;
                        if (yych <= '/') goto yy169;
                        if (yych <= '9') goto yy201;
                        goto yy169;
                } else {
                        if (yych <= 'g') {
                                if (yych >= '<') goto yy169;
                        } else {
                                if (yych <= 'h') goto yy158;
                                if (yych <= 'k') goto yy169;
                                goto yy160;
                        }
                }
        } else {
                if (yych <= 0x7F) {
                        if (yych <= 'q') {
                                if (yych <= 'm') goto yy162;
                                goto yy169;
                        } else {
                                if (yych <= 'r') goto yy164;
                                if (yych <= '~') goto yy169;
                                goto yy167;
                        }
                } else {
                        if (yych <= 0xDF) {
                                if (yych <= 0xBF) goto yy64;
                                goto yy171;
                        } else {
                                if (yych <= 0xEF) goto yy172;
                                if (yych <= 0xF7) goto yy173;
                                goto yy64;
                        }
                }
        }
        yyaccept = 4;
        yych = *(marker = ++cursor);
        if (yych <= ';') {
                if (yych <= '/') goto yy64;
                if (yych >= ':') goto yy64;
        } else {
                if (yych == '>') goto yy64;
                if (yych <= '?') goto yy185;
                goto yy64;
        }
        yyaccept = 4;
        yych = *(marker = ++cursor);
        goto yy206;
yy205:
        yyaccept = 4;
        marker = ++cursor;
        yych = *cursor;
yy206:
        if (yych <= 'l') {
                if (yych <= ':') {
                        if (yych <= 0x1F) goto yy167;
                        if (yych <= '/') goto yy169;
                        if (yych <= '9') goto yy205;
                        goto yy169;
                } else {
                        if (yych <= 'g') {
                                if (yych >= '<') goto yy169;
                        } else {
                                if (yych <= 'h') goto yy158;
                                if (yych <= 'k') goto yy169;
                                goto yy160;
                        }
                }
        } else {
                if (yych <= 0x7F) {
                        if (yych <= 'q') {
                                if (yych <= 'm') goto yy162;
                                goto yy169;
                        } else {
                                if (yych <= 'r') goto yy164;
                                if (yych <= '~') goto yy169;
                                goto yy167;
                        }
                } else {
                        if (yych <= 0xDF) {
                                if (yych <= 0xBF) goto yy64;
                                goto yy171;
                        } else {
                                if (yych <= 0xEF) goto yy172;
                                if (yych <= 0xF7) goto yy173;
                                goto yy64;
                        }
                }
        }
yy207:
        yyaccept = 4;
        marker = ++cursor;
        yych = *cursor;
        if (yych <= ';') {
                if (yych <= '/') goto yy64;
                if (yych >= ':') goto yy64;
        } else {
                if (yych == '>') goto yy64;
                if (yych <= '?') goto yy185;
                goto yy64;
        }
        yyaccept = 4;
        marker = ++cursor;
        yych = *cursor;
        if (yych <= 'k') {
                if (yych <= ':') {
                        if (yych <= 0x1F) goto yy167;
                        if (yych <= '/') goto yy169;
                        if (yych >= ':') goto yy169;
                } else {
                        if (yych <= ';') goto yy207;
                        if (yych == 'h') goto yy158;
                        goto yy169;
                }
        } else {
                if (yych <= 0x7F) {
                        if (yych <= 'l') goto yy160;
                        if (yych <= 'm') goto yy162;
                        if (yych <= '~') goto yy169;
                        goto yy167;
                } else {
                        if (yych <= 0xDF) {
                                if (yych <= 0xBF) goto yy64;
                                goto yy171;
                        } else {
                                if (yych <= 0xEF) goto yy172;
                                if (yych <= 0xF7) goto yy173;
                                goto yy64;
                        }
                }
        }
yy209:
        yyaccept = 4;
        marker = ++cursor;
        yych = *cursor;
        if (yych <= 'k') {
                if (yych <= ':') {
                        if (yych <= 0x1F) goto yy167;
                        if (yych <= '/') goto yy169;
                        if (yych <= '9') goto yy209;
                        goto yy169;
                } else {
                        if (yych <= ';') goto yy207;
                        if (yych == 'h') goto yy158;
                        goto yy169;
                }
        } else {
                if (yych <= 0x7F) {
                        if (yych <= 'l') goto yy160;
                        if (yych <= 'm') goto yy162;
                        if (yych <= '~') goto yy169;
                        goto yy167;
                } else {
                        if (yych <= 0xDF) {
                                if (yych <= 0xBF) goto yy64;
                                goto yy171;
                        } else {
                                if (yych <= 0xEF) goto yy172;
                                if (yych <= 0xF7) goto yy173;
                                goto yy64;
                        }
                }
        }
yy211:
        ++cursor;
        yych = *cursor;
yy212:
        if (yych <= 0x1F) goto yy38;
        if (yych <= '/') goto yy211;
        if (yych >= 0x7F) goto yy38;
        ++cursor;
#line 209 "src/parser.re"
        IGNORE()
#line 1459 "src/parser.c"
yy215:
        ++cursor;
        yych = *cursor;
yy216:
        if (yych <= 0x1F) goto yy38;
        if (yych <= '/') goto yy215;
        if (yych >= 0x7F) goto yy38;
        ++cursor;
#line 208 "src/parser.re"
        IGNORE()
#line 1470 "src/parser.c"
yy219:
        ++cursor;
        yych = *cursor;
yy220:
        if (yych <= 0x1F) goto yy38;
        if (yych <= '/') goto yy219;
        if (yych >= 0x7F) goto yy38;
        ++cursor;
#line 207 "src/parser.re"
        IGNORE()
#line 1481 "src/parser.c"
yy223:
        ++cursor;
        yych = *cursor;
yy224:
        if (yych <= 0x1F) goto yy38;
        if (yych <= '/') goto yy223;
        if (yych >= 0x7F) goto yy38;
        ++cursor;
#line 206 "src/parser.re"
        IGNORE()
#line 1492 "src/parser.c"
}
#line 281 "src/parser.re"

    }

    EXIT();
}

static void vt100_parser_handle_bel(VT100Screen *vt)
{
    DEBUG_TRACE1("BEL");
    vt100_screen_audible_bell(vt);
}

static void vt100_parser_handle_bs(VT100Screen *vt)
{
    DEBUG_TRACE1("BS");
    vt100_screen_move_to(vt, vt->grid->cur.row, vt->grid->cur.col - 1);
}

static void vt100_parser_handle_tab(VT100Screen *vt)
{
    DEBUG_TRACE1("TAB");
    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)
{
    DEBUG_TRACE1("LF");
    vt100_screen_move_down_or_scroll(vt);
}

static void vt100_parser_handle_cr(VT100Screen *vt)
{
    DEBUG_TRACE1("CR");
    vt100_screen_move_to(vt, vt->grid->cur.row, 0);
}

static void vt100_parser_handle_deckpam(VT100Screen *vt)
{
    DEBUG_TRACE1("DECKPAM");
    vt100_screen_set_application_keypad(vt);
}

static void vt100_parser_handle_deckpnm(VT100Screen *vt)
{
    DEBUG_TRACE1("DECKPNM");
    vt100_screen_reset_application_keypad(vt);
}

static void vt100_parser_handle_ri(VT100Screen *vt)
{
    DEBUG_TRACE1("RI");
    vt100_screen_move_up_or_scroll(vt);
}

static void vt100_parser_handle_ris(VT100Screen *vt)
{
    DEBUG_TRACE1("RIS");
    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_move_to(vt, 0, 0);
    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);
    vt100_screen_reset_mouse_reporting_button_motion(vt);
    vt100_screen_reset_mouse_reporting_sgr_mode(vt);
    vt100_screen_reset_bracketed_paste(vt);
}

static void vt100_parser_handle_vb(VT100Screen *vt)
{
    DEBUG_TRACE1("VB");
    vt100_screen_visual_bell(vt);
}

static void vt100_parser_handle_decsc(VT100Screen *vt)
{
    DEBUG_TRACE1("DECSC");
    vt100_screen_save_cursor(vt);
}

static void vt100_parser_handle_decrc(VT100Screen *vt)
{
    DEBUG_TRACE1("DECRC");
    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;

    DEBUG_TRACE3("ICH", buf + 2, len - 3);
    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;
    int row = vt->grid->cur.row, new_row;

    DEBUG_TRACE3("CUU", buf + 2, len - 3);
    vt100_parser_extract_csi_params(buf + 2, len - 3, params, &nparams);
    new_row = row - params[0];
    if (row >= vt->grid->scroll_top && new_row < vt->grid->scroll_top) {
        new_row = vt->grid->scroll_top;
    }
    vt100_screen_move_to(vt, new_row, 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;
    int row = vt->grid->cur.row, new_row;

    DEBUG_TRACE3("CUD", buf + 2, len - 3);
    vt100_parser_extract_csi_params(buf + 2, len - 3, params, &nparams);
    new_row = row + params[0];
    if (row <= vt->grid->scroll_bottom && new_row > vt->grid->scroll_bottom) {
        new_row = vt->grid->scroll_bottom;
    }
    vt100_screen_move_to(vt, new_row, 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;

    DEBUG_TRACE3("CUF", buf + 2, len - 3);
    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;

    DEBUG_TRACE3("CUB", buf + 2, len - 3);
    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_cha(VT100Screen *vt, char *buf, size_t len)
{
    int params[VT100_PARSER_CSI_MAX_PARAMS] = { 1 }, nparams;

    DEBUG_TRACE3("CHA", buf + 2, len - 3);
    vt100_parser_extract_csi_params(buf + 2, len - 3, params, &nparams);
    vt100_screen_move_to(vt, vt->grid->cur.row, params[0] - 1);
}

static void vt100_parser_handle_cup(VT100Screen *vt, char *buf, size_t len)
{
    int params[VT100_PARSER_CSI_MAX_PARAMS] = { 0, 0 }, nparams;

    DEBUG_TRACE3("CUP", buf + 2, len - 3);
    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;

    /* this also gets called by handle_decsed, which will pass it something
     * of the form \e[?1J instead of \e[1J */
    buf += 2;
    len -= 3;
    if (*buf == '?') {
        buf++;
        len--;
        DEBUG_TRACE3("DECSED", buf, len);
    }
    else {
        DEBUG_TRACE3("ED", buf, len);
    }
    vt100_parser_extract_csi_params(buf, len, 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;

    /* this also gets called by handle_decsel, which will pass it something
     * of the form \e[?1J instead of \e[1J */
    buf += 2;
    len -= 3;
    if (*buf == '?') {
        buf++;
        len--;
        DEBUG_TRACE3("DECSEL", buf, len);
    }
    else {
        DEBUG_TRACE3("EL", buf, len);
    }
    vt100_parser_extract_csi_params(buf, len, 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;

    DEBUG_TRACE3("IL", buf + 2, len - 3);
    vt100_parser_extract_csi_params(buf + 2, len - 3, params, &nparams);
    vt100_screen_insert_lines(vt, params[0]);
}

static void vt100_parser_handle_dl(VT100Screen *vt, char *buf, size_t len)
{
    int params[VT100_PARSER_CSI_MAX_PARAMS] = { 1 }, nparams;

    DEBUG_TRACE3("DL", buf + 2, len - 3);
    vt100_parser_extract_csi_params(buf + 2, len - 3, params, &nparams);
    vt100_screen_delete_lines(vt, params[0]);
}

static void vt100_parser_handle_dch(VT100Screen *vt, char *buf, size_t len)
{
    int params[VT100_PARSER_CSI_MAX_PARAMS] = { 1 }, nparams;

    DEBUG_TRACE3("DCH", buf + 2, len - 3);
    vt100_parser_extract_csi_params(buf + 2, len - 3, params, &nparams);
    vt100_screen_delete_characters(vt, params[0]);
}

static void vt100_parser_handle_su(VT100Screen *vt, char *buf, size_t len)
{
    int params[VT100_PARSER_CSI_MAX_PARAMS] = { 1 }, nparams;

    DEBUG_TRACE3("SU", buf + 2, len - 3);
    vt100_parser_extract_csi_params(buf + 2, len - 3, params, &nparams);
    if (params[0] == 0) {
        params[0] = 1;
    }
    vt100_screen_scroll_up(vt, params[0]);
}

static void vt100_parser_handle_sd(VT100Screen *vt, char *buf, size_t len)
{
    int params[VT100_PARSER_CSI_MAX_PARAMS] = { 1 }, nparams;

    DEBUG_TRACE3("SD", buf + 2, len - 3);
    vt100_parser_extract_csi_params(buf + 2, len - 3, params, &nparams);
    if (params[0] == 0) {
        params[0] = 1;
    }
    vt100_screen_scroll_down(vt, params[0]);
}

static void vt100_parser_handle_ech(VT100Screen *vt, char *buf, size_t len)
{
    int params[VT100_PARSER_CSI_MAX_PARAMS] = { 1 }, nparams;

    DEBUG_TRACE3("ECH", buf + 2, len - 3);
    vt100_parser_extract_csi_params(buf + 2, len - 3, params, &nparams);
    vt100_screen_erase_characters(vt, params[0]);
}

static void vt100_parser_handle_vpa(VT100Screen *vt, char *buf, size_t len)
{
    int params[VT100_PARSER_CSI_MAX_PARAMS] = { 1 }, nparams;

    DEBUG_TRACE3("VPA", buf + 2, len - 3);
    vt100_parser_extract_csi_params(buf + 2, len - 3, params, &nparams);
    vt100_screen_move_to(vt, params[0] - 1, vt->grid->cur.col);
}

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 };

    DEBUG_TRACE3("SM", buf + 2, len - 3);
    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 1002:
                vt100_screen_set_mouse_reporting_button_motion(vt);
                break;
            case 1006:
                vt100_screen_set_mouse_reporting_sgr_mode(vt);
                break;
            case 47:
            case 1049:
                vt100_screen_use_alternate_buffer(vt);
                break;
            case 2004:
                vt100_screen_set_bracketed_paste(vt);
                break;
            case 12: // blinking cursor
                // not interested in blinking cursors
            case 1005: // UTF-8 mouse tracking mode
                // will just default this to always on. might break some
                // programs, but the programs that will break will already be
                // broken for terms with width greater than 223.
            case 1034: // interpret Meta key
                // not actually sure if ignoring this is correct - need to see
                // what exactly it does. don't think it's important though.
                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 };

    DEBUG_TRACE3("RM", buf + 2, len - 3);
    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_reset_application_cursor(vt);
                break;
            case 9:
                vt100_screen_reset_mouse_reporting_press(vt);
                break;
            case 25:
                vt100_screen_hide_cursor(vt);
                break;
            case 1000:
                vt100_screen_reset_mouse_reporting_press_release(vt);
                break;
            case 1002:
                vt100_screen_reset_mouse_reporting_button_motion(vt);
                break;
            case 1006:
                vt100_screen_reset_mouse_reporting_sgr_mode(vt);
                break;
            case 47:
            case 1049:
                vt100_screen_use_normal_buffer(vt);
                break;
            case 2004:
                vt100_screen_reset_bracketed_paste(vt);
                break;
            case 12: // blinking cursor
                // not interested in blinking cursors
            case 1005: // UTF-8 mouse tracking mode
                // will just default this to always on. might break some
                // programs, but the programs that will break will already be
                // broken for terms with width greater than 223.
            case 1034: // interpret Meta key
                // not actually sure if ignoring this is correct - need to see
                // what exactly it does. don't think it's important though.
                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;

    DEBUG_TRACE3("SGR", buf + 2, len - 3);
    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;
        case 5: // blink mode
            // blinking terminals are awful
            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;

    DEBUG_TRACE3("CSR", buf + 2, len - 3);
    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't 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't 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)
{
    DEBUG_TRACE3("OSC0", buf + 4, len - 5);
    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)
{
    DEBUG_TRACE3("OSC1", buf + 4, len - 5);
    vt100_screen_set_icon_name(vt, buf + 4, len - 5);
}

static void vt100_parser_handle_osc2(VT100Screen *vt, char *buf, size_t len)
{
    DEBUG_TRACE3("OSC2", buf + 4, len - 5);
    vt100_screen_set_window_title(vt, buf + 4, len - 5);
}

static void vt100_parser_handle_ascii(VT100Screen *vt, char *text, size_t len)
{
    DEBUG_TRACE3("TEXT", text, len);
    vt100_screen_show_string_ascii(vt, text, len);
}

static void vt100_parser_handle_text(VT100Screen *vt, char *text, size_t len)
{
    DEBUG_TRACE3("UTF8", text, len);
    vt100_screen_show_string_utf8(vt, text, len);
}

static void vt100_parser_ignore(VT100Screen *vt)
{
    DEBUG_TRACE1("ignoring");
    UNUSED(vt);
}

// vim:ft=c