diff src/sdl/expr.l @ 28:2efb971df515

bringing in SDL package
author Robert McIntyre <rlm@mit.edu>
date Sun, 04 Mar 2012 21:06:50 -0600
parents f9f4f1b99eed
children
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line diff
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/sdl/expr.l	Sun Mar 04 21:06:50 2012 -0600
     1.3 @@ -0,0 +1,71 @@
     1.4 +%{
     1.5 +#include "expr.cpp.h"
     1.6 +
     1.7 +#ifndef __GNUC__
     1.8 +#include <io.h>
     1.9 +#define isatty _isatty
    1.10 +#endif
    1.11 +
    1.12 +char *exprString;
    1.13 +int exprCol;
    1.14 +
    1.15 +#define YY_INPUT(buf,result,max_size) \
    1.16 +    { \
    1.17 +    int c = *exprString++; \
    1.18 +    exprCol++;\
    1.19 +    result = (c == 0) ? YY_NULL : (buf[0] = c, 1); \
    1.20 +    }
    1.21 +%}
    1.22 +
    1.23 +%option nomain
    1.24 +%option noyywrap
    1.25 +
    1.26 +SIZEOF "sizeof"
    1.27 +ID [a-zA-Z_][a-zA-Z0-9_]*
    1.28 +NUM [0-9]+
    1.29 +DOT "."
    1.30 +ARROW "->"
    1.31 +STAR "*"
    1.32 +ADDR "&"
    1.33 +
    1.34 +%%
    1.35 +
    1.36 +{SIZEOF} {
    1.37 +        return TOKEN_SIZEOF;
    1.38 +}
    1.39 +
    1.40 +{ID} {
    1.41 +        return TOKEN_IDENTIFIER;
    1.42 +}
    1.43 +
    1.44 +{NUM} {
    1.45 +        return TOKEN_NUMBER;
    1.46 +}
    1.47 +
    1.48 +{DOT} {
    1.49 +        return TOKEN_DOT;
    1.50 +}       
    1.51 +
    1.52 +{ARROW} {
    1.53 +        return TOKEN_ARROW;
    1.54 +}
    1.55 +
    1.56 +{ADDR} {
    1.57 +        return TOKEN_ADDR;
    1.58 +}
    1.59 +
    1.60 +{STAR} {
    1.61 +        return TOKEN_STAR;
    1.62 +}
    1.63 +
    1.64 +[ \t\n]+
    1.65 +
    1.66 +. return *yytext;
    1.67 +
    1.68 +%%
    1.69 +
    1.70 +void exprCleanBuffer()
    1.71 +{
    1.72 +  yy_delete_buffer(yy_current_buffer);
    1.73 +  yy_init = 1;
    1.74 +}