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|
%{
// levcomp.l:
// Level compiler lexer for Dungeon Crawl Stone Soup.
//
// Based loosely on NetHack's lev_comp.l
#include "AppHdr.h"
#include "levcomp.tab.h"
#include <cstring>
static bool alloced = false;
static void clean()
{
if (yylval.text && alloced)
free( (void*) yylval.text);
yylval.text = NULL;
alloced = false;
}
static void settext()
{
clean();
if ((yylval.text = strdup(yytext)))
alloced = true;
}
%}
%s MAPDEF
%s ARGUMENT
%s MNAME
%s KEYWORDS
%option yylineno
%option never-interactive
NSPACE [^\ \t\r\n]
%%
<MAPDEF>^\s*ENDMAP { BEGIN(INITIAL); }
<MAPDEF>^#.*\r?\n ;
<MAPDEF>[a-zA-Z_&0-9|$+.@^#()\[\]=<>{}%*\-?]* {
settext();
return MAP_LINE;
}
^\s*MAP { BEGIN(MAPDEF); }
^\s*#.* ;
NAME: { BEGIN(ARGUMENT); return NAME; }
default-depth: return DEFAULT_DEPTH;
DEPTH: return DEPTH;
ORIENT: return ORIENT;
PLACE: { BEGIN(ARGUMENT); return PLACE; }
CHANCE: return CHANCE;
FLAGS: return FLAGS;
TAGS: { BEGIN(KEYWORDS); return TAGS; }
SYMBOL: { BEGIN(ARGUMENT); return SYMBOL; }
MONS: { BEGIN(MNAME); return MONS; }
BRANCHDEF: return BRANCH;
DEFAULT return DEFAULT;
DESC: return DESC;
BRANCH: return BRANCH;
ROOT_DEPTH: return ROOT_DEPTH;
FLOOR_COLOUR: return FLOOR_COLOUR;
ROCK_COLOUR: return ROCK_COLOUR;
LEVEL return LEVEL;
END return END;
PVAULT: return PVAULT;
PMINIVAULT: return PMINIVAULT;
ENTRY_MSG: { BEGIN(ARGUMENT); return ENTRY_MSG; }
EXIT_MSG: { BEGIN(ARGUMENT); return EXIT_MSG; }
MONSTERS return MONSTERS;
ENDMONSTERS return ENDMONSTERS;
<KEYWORDS>[A-Za-z_0-9\-]+ {
settext();
return STRING;
}
<KEYWORDS>[ \t]+ ;
<KEYWORDS>[ \t]*\r?\n { BEGIN(INITIAL); }
<MNAME>[^, \t\r\n][^,\r\n]+[^, \t\r\n] {
settext();
return MONSTER_NAME;
}
<MNAME>, return COMMA;
<MNAME>[ \t]*\r?\n { BEGIN(INITIAL); }
<MNAME>[ \t] ;
pandemonic return PANDEMONIC;
no_hmirror return NO_HMIRROR;
no_vmirror return NO_VMIRROR;
no_rotate return NO_ROTATE;
encompass return ENCOMPASS;
north return NORTH;
south return SOUTH;
east return EAST;
west return WEST;
northeast return NORTHEAST;
northwest return NORTHWEST;
southeast return SOUTHEAST;
southwest return SOUTHWEST;
- return DASH;
, return COMMA;
[0-9]+ {
clean();
yylval.i = atoi(yytext);
return INTEGER;
}
<ARGUMENT>{NSPACE}.*{NSPACE} {
BEGIN(INITIAL);
settext();
return STRING;
}
<ARGUMENT>\r?\n { BEGIN(INITIAL); }
[\ \t\r\n]+ ;
\( return OPAREN;
\) return CPAREN;
\" return QUOTE;
[a-zA-Z_][a-zA-Z_0-9]+ {
settext();
return IDENTIFIER;
}
. return CHARACTER;
%%
int yywrap()
{
clean();
return 1;
}
|
