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support hex numbers

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This commit is contained in:
Bill Currie 2002-10-26 03:23:19 +00:00
parent 99e18513f0
commit 99cdcc9bd7
1 changed files with 17 additions and 0 deletions
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17
tools/qfcc/source/qc-lex.l
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@ -72,6 +72,7 @@ extern int element_flag;
%} %}
DIGIT [0-9] DIGIT [0-9]
XDIGIT [0-9a-fA-F]
ID [a-zA-Z_][a-zA-Z_0-9]* ID [a-zA-Z_][a-zA-Z_0-9]*
FLOAT {DIGIT}+"."{DIGIT}* FLOAT {DIGIT}+"."{DIGIT}*
NUM ({DIGIT}+("."{DIGIT}*)?) NUM ({DIGIT}+("."{DIGIT}*)?)
@ -104,6 +105,22 @@ m ([\-+]?)
return INT_VAL; return INT_VAL;
} }
0x{XDIGIT}+ {
const char *c = yytext + 2;
yylval.integer_val = 0;
while (*c) {
yylval.integer_val *= 16;
yylval.integer_val += *c - '0';
if (*c > '9')
yylval.integer_val -= 'A' - '9' - 1;
if (*c > 'F')
yylval.integer_val -= 'a' - 'A';
c++;
}
printf ("%x\n", yylval.integer_val);
return INT_VAL;
}
{FLOAT}* { {FLOAT}* {
yylval.float_val = atof (yytext); yylval.float_val = atof (yytext);
return FLOAT_VAL; return FLOAT_VAL;