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Escape escape characters in regular expression strings 

The %s here is a format specifier for WRITE_TO(), and the %c's are regular
expression character classes. The %c's must be double-escaped so that the
formatter doesn't choke due to there being too few variable arguments.

This prevents a crash in inblorb when releasing along with a solution.
This commit is contained in:
Philip Chimento 2022-05-16 22:40:12 -07:00
parent a024c4ba9c
commit df155e8110
1 changed files with 2 additions and 2 deletions
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4
inblorb/Chapter 3/Solution Deviser.w
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@ -167,7 +167,7 @@ void Solution::read_skein_line(text_stream *line, int pass) {
=
void Solution::find_node_ID_in_tag(OUTPUT_STREAM, text_stream *line, char *tag) {
TEMPORARY_TEXT(prototype)
WRITE_TO(prototype, "%c*?<%s nodeId=\"(%c*?)\"%c*", tag);
WRITE_TO(prototype, "%%c*?<%s nodeId=\"(%%c*?)\"%%c*", tag);
wchar_t prototype_Cs[128];
Str::copy_to_wide_string(prototype_Cs, prototype, 128);
match_results mr = Regexp::create_mr();
@ -182,7 +182,7 @@ void Solution::find_node_ID_in_tag(OUTPUT_STREAM, text_stream *line, char *tag)
=
int Solution::find_text_of_tag(OUTPUT_STREAM, text_stream *line, char *tag) {
TEMPORARY_TEXT(prototype)
WRITE_TO(prototype, "%c*?>(%c*?)</%s%c*", tag);
WRITE_TO(prototype, "%%c*?>(%%c*?)</%s%%c*", tag);
match_results mr = Regexp::create_mr();
wchar_t prototype_Cs[128];
Str::copy_to_wide_string(prototype_Cs, prototype, 128);