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winedbg: Properly handle escaped characters inside strings. 

Signed-off-by: Eric Pouech <eric.pouech@gmail.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Eric Pouech 2021-12-01 15:30:23 +01:00 committed by Alexandre Julliard
parent 94ca4be2a6
commit d331d9cb93
1 changed files with 30 additions and 2 deletions
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32
programs/winedbg/debug.l
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@ -60,6 +60,34 @@ void lexeme_flush(void)
next_lexeme = 0;
}
/* called with quoted string, unescape all elements inside the quotes */
static char* unescape_string(const char* str)
{
size_t len = strlen(str) - 2;
char* ret = lexeme_alloc_size(len + 1);
char* dst = ret;
const char* ptr;
for (ptr = str + 1; ptr < str + 1 + len; ptr++)
{
if (*ptr == '\\')
{
switch (*++ptr)
{
case 't': *dst++ = '\t'; break;
case 'r': *dst++ = '\r'; break;
case 'n': *dst++ = '\n'; break;
case '\\': *dst++ = '\\'; break;
case '"': *dst++ = '"'; break;
default: *dst++ = '\\'; *dst++ = *ptr; /* not handled, don't change */
}
}
else
*dst++ = *ptr;
}
*dst = '\0';
return ret;
}
#define YY_INPUT(buf,result,max_size) \
(result = input_lex_read_buffer(buf, max_size))
@ -72,7 +100,7 @@ HEXDIGIT [0-9a-fA-F]
FORMAT [ubcdgiswxa]
IDENTIFIER [_a-zA-Z~?][_a-zA-Z0-9~?@]*
PATHNAME [\\/_a-zA-Z0-9\.~@][\\/\-_a-zA-Z0-9\.~@]*
STRING \"[^\n"]+\"
STRING \"(\\[^\n]|[^\\"\n])*\"
%s FORMAT_EXPECTED
%s INFO_CMD
@ -125,7 +153,7 @@ STRING \"[^\n"]+\"
<FORMAT_EXPECTED>"/"{FORMAT} { dbg_lval.integer = (1 << 8) | yytext[1]; return tFORMAT; }
{STRING} { dbg_lval.string = lexeme_alloc(yytext + 1); dbg_lval.string[strlen(dbg_lval.string) - 1] = '\0'; return tSTRING; }
{STRING} { dbg_lval.string = unescape_string(yytext); return tSTRING;}
<ASTRING_EXPECTED>[^\n]+ { char* p = yytext; while (*p == ' ' || *p == '\t') p++;
dbg_lval.string = lexeme_alloc(p); return tSTRING; }