mirror of
https://git.code.sf.net/p/quake/quakeforge
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141 lines
2.3 KiB
Text
141 lines
2.3 KiB
Text
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/*
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* Linux Frame Buffer Device Configuration
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*
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* © Copyright 1995-1998 by Geert Uytterhoeven
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* (Geert.Uytterhoeven@cs.kuleuven.ac.be)
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*
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* --------------------------------------------------------------------------
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file COPYING in the main directory of the Linux
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* distribution for more details.
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*/
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%{
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#include <string.h>
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#include <stdlib.h>
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#define Die Sys_Error
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#include "fbset.h"
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#include "fbset_modes_y.h"
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#define YY_NO_UNPUT
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#define YY_DECL int yylex YY_PROTO(( void ))
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YY_DECL;
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struct keyword {
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const char *name;
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int token;
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int value;
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};
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static struct keyword keywords[] = {
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{ "mode", MODE, 0 },
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{ "geometry", GEOMETRY, 0 },
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{ "timings", TIMINGS, 0 },
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{ "hsync", HSYNC, 0 },
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{ "vsync", VSYNC, 0 },
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{ "csync", CSYNC, 0 },
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{ "gsync", GSYNC, 0 },
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{ "extsync", EXTSYNC, 0 },
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{ "bcast", BCAST, 0 },
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{ "laced", LACED, 0 },
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{ "double", DOUBLE, 0 },
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{ "rgba", RGBA, 0 },
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{ "nonstd", NONSTD, 0 },
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{ "accel", ACCEL, 0 },
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{ "grayscale", GRAYSCALE, 0 },
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{ "endmode", ENDMODE, 0 },
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{ "low", POLARITY, LOW },
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{ "high", POLARITY, HIGH },
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{ "false", BOOLEAN, FALSE },
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{ "true", BOOLEAN, TRUE },
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{ "", -1, 0 }
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};
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int line = 1;
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void yyerror(const char *s);
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void yyerror(const char *s)
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{
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Die("%s:%d: %s", Opt_modedb, line, s);
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}
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static int yywrap(void)
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{
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return 1;
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}
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static int FindToken(const char *s)
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{
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int i;
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for (i = 0; keywords[i].token > 0; i++)
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if (!strcasecmp(s, keywords[i].name)) {
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yylval.int_val = keywords[i].value;
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return keywords[i].token;
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}
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Die("%s:%d: Unknown keyword `%s'", Opt_modedb, line, s);
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}
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static const char *CopyString(const char *s)
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{
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int len;
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char *s2;
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len = strlen(s)-2;
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if (!(s2 = malloc(len+1)))
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Die("No memory");
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strncpy(s2, s+1, len);
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s2[len] = '\0';
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return s2;
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}
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%}
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keyword [a-zA-Z][a-zA-Z0-9]*
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number [0-9]*
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string \"[^\"\n]*\"
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comment \#([^\n]*)
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space [ \t]+
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junk .
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%%
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{keyword} {
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return FindToken(yytext);
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}
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{number} {
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yylval.int_val = strtoul(yytext, NULL, 0);
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return NUMBER;
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}
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{string} {
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yylval.string = CopyString(yytext);
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return STRING;
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}
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{comment}$ break;
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{space} break;
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\n {
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line++;
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break;
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}
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{junk} {
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Die("%s:%d: Invalid token `%s'", Opt_modedb, line, yytext);
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}
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%%
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