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safe parsing of "" and ''

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This commit is contained in:
Krasimir Angelov
2022-06-16 11:22:15 +02:00
parent 247a48e5bb
commit ad8a32ce86
1 changed files with 12 additions and 0 deletions
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12
src/runtime/c/pgf/expr.cxx
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@@ -508,6 +508,12 @@ void PgfExprParser::token()
if (ch == '\'') { if (ch == '\'') {
getc(); getc();
token_tag = PGF_TOKEN_IDENT; token_tag = PGF_TOKEN_IDENT;
if (token_value == NULL) {
token_value = (PgfText*)
malloc(sizeof(PgfText)+1);
token_value->size = 0;
token_value->text[0] = 0;
}
} }
} }
break; break;
@@ -521,6 +527,12 @@ void PgfExprParser::token()
if (ch == '"') { if (ch == '"') {
getc(); getc();
token_tag = PGF_TOKEN_STR; token_tag = PGF_TOKEN_STR;
if (token_value == NULL) {
token_value = (PgfText*)
malloc(sizeof(PgfText)+1);
token_value->size = 0;
token_value->text[0] = 0;
}
} }
} }
break; break;