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full \ handling in strings (including \e for escape (why C doesn't have that

Browse source 
is beyond me))
This commit is contained in:
Bill Currie 2001-06-11 23:37:01 +00:00
parent 340e104778
commit aa825853bf
1 changed files with 64 additions and 6 deletions
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70
tools/qfcc/source/pr_lex.c
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@ -158,6 +158,7 @@ PR_LexString (void)
{
int c;
int len;
int i;
len = 0;
pr_file_p++;
@ -171,12 +172,69 @@ PR_LexString (void)
c = *pr_file_p++;
if (!c)
PR_ParseError ("EOF inside quote");
if (c == 'n')
c = '\n';
else if (c == '"')
c = '"';
else
PR_ParseError ("Unknown escape char");
switch (c) {
case 'n':
c = '\n';
break;
case '"':
c = '\"';
break;
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
for (i = c = 0; i < 3
&& *pr_file_p >= '0'
&& *pr_file_p <='7'; i++, pr_file_p++) {
c *= 8;
c += *pr_file_p - '0';
}
if (!*pr_file_p)
PR_ParseError ("EOF inside quote");
break;
case 'x':
c = 0;
while (*pr_file_p && isxdigit (*pr_file_p)) {
c *= 16;
if (*pr_file_p <= 9)
c += *pr_file_p - '0';
else if (*pr_file_p <= 'F')
c += *pr_file_p - 'A';
else
c += *pr_file_p - 'a';
}
if (!*pr_file_p)
PR_ParseError ("EOF inside quote");
break;
case 'a':
c = '\a';
break;
case 'b':
c = '\b';
break;
case 'e':
c = '\033';
break;
case 'f':
c = '\f';
break;
case 'r':
c = '\r';
break;
case 't':
c = '\t';
break;
case 'v':
c = '\v';
break;
default:
PR_ParseError ("Unknown escape char");
break;
}
} else if (c == '\"') {
pr_token[len] = 0;
pr_token_type = tt_immediate;