DeforaOS/CPP
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Fixed parsing of quoted content

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This commit is contained in:
Pierre Pronchery 2008-02-26 16:47:04 +00:00
parent b501ac22c6
commit 9725bf001b
1 changed files with 14 additions and 42 deletions
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56
src/cpp.c
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@ -390,12 +390,10 @@ static int _cpp_callback_operator(Parser * parser, Token * token, int c,
/* cpp_callback_quote */
static int _quote_escape(int c);
static int _cpp_callback_quote(Parser * parser, Token * token, int c,
void * data)
{
const int d = c;
int escape = 0;
char * str = NULL;
size_t len = 0;
char * p;
@ -407,27 +405,30 @@ static int _cpp_callback_quote(Parser * parser, Token * token, int c,
else
return 1;
#ifdef DEBUG
fprintf(stderr, "DEBUG: cpp_callback_quote('%c')\n", c);
fprintf(stderr, "%s%c%s", "DEBUG: cpp_callback_quote('", c, "')\n");
#endif
while((p = realloc(str, len + 3)) != NULL)
{
str = p;
str[len++] = c;
if((c = parser_scan_filter(parser)) == EOF
|| c == '\n' || c == d)
break; /* unexpected end of line, file or of string */
if(c != '\\')
continue; /* character is not escaped */
if((c = parser_scan_filter(parser)) == EOF)
if((c = parser_scan_filter(parser)) == EOF || c == '\n')
break;
c = _quote_escape(c);
if(escape)
{
escape = 0;
continue;
}
if(c == str[0])
break;
if(c == '\\')
escape = 1;
}
if(str == NULL || c != d)
if(str == NULL || c != str[0])
{
free(str);
return -1;
}
str[len++] = d;
str[len++] = str[0];
str[len] = '\0';
token_set_string(token, str);
free(str);
@ -435,35 +436,6 @@ static int _cpp_callback_quote(Parser * parser, Token * token, int c,
return 0;
}
static int _quote_escape(int c)
/* FIXME - handle octal and hexadecimal input
* - seems to break further interpretation (eg '\0') */
{
switch(c)
{
case '0':
return '\0';
case 'a':
return '\a';
case 'b':
return '\b';
case 'e':
return '\e';
case 'f':
return '\f';
case 'n':
return '\n';
case 'r':
return '\r';
case 't':
return '\t';
case 'v':
return '\v';
default:
return c;
}
}
/* cpp_callback_word */
static int _isword(int c);