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i18n: Fix parsing of multiple escapes before quotes

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See https://github.com/godotengine/godot/pull/37114#issuecomment-601463765

(cherry picked from commit 8c3ad2af93)
This commit is contained in:
Thakee Nathees 2020-03-20 08:47:43 +01:00 committed by Rémi Verschelde
parent 9729432ec0
commit 46df39d5e5
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GPG key ID: C3336907360768E1
1 changed files with 12 additions and 2 deletions
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14
core/io/translation_loader_po.cpp
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@ -117,13 +117,23 @@ RES TranslationLoaderPO::load_translation(FileAccess *f, Error *r_error) {
}
l = l.substr(1, l.length());
//find final quote
// Find final quote, ignoring escaped ones (\").
// The escape_next logic is necessary to properly parse things like \\"
// where the blackslash is the one being escaped, not the quote.
int end_pos = -1;
bool escape_next = false;
for (int i = 0; i < l.length(); i++) {
if (l[i] == '"' && (i == 0 || l[i - 1] != '\\')) {
if (l[i] == '\\' && !escape_next) {
escape_next = true;
continue;
}
if (l[i] == '"' && !escape_next) {
end_pos = i;
break;
}
escape_next = false;
}
if (end_pos == -1) {