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Fix #58. Positions of the second match of a keyword were incorrectly counted from the end of the previous match instead of from the start of the string.

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Twan van Laarhoven
2020-05-27 02:12:32 +02:00
parent f0c0b51e6c
commit 279fdb0378
1 changed files with 10 additions and 7 deletions
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src/data/keyword.cpp
+10 -7
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@@ -417,9 +417,11 @@ unordered_set<Keyword const*> possible_matches(String const& tagged_str, Keyword
struct KeywordMatch {
Keyword const* keyword;
// match in the untagged string
// match in (substring of) the untagged string
Regex::Results match;
KeywordMatch(Keyword const& keyword, Regex::Results match) : keyword(&keyword), match(match) {}
// position of match in the untagged string
size_t pos;
KeywordMatch(Keyword const& keyword, Regex::Results match, size_t pos) : keyword(&keyword), match(match), pos(pos) {}
};
// Collect exact matching keywords
@@ -430,7 +432,8 @@ void keyword_matches(const String& untagged_str, const Keyword& keyword, vector<
size_t i = 0;
String::const_iterator it = untagged_str.begin();
while (keyword.match_re.matches(match, it, untagged_str.end())) {
out.emplace_back(keyword, match);
size_t pos = match[0].first - untagged_str.begin();
out.emplace_back(keyword, match, pos);
it = max(it+1, match[0].end());
}
}
@@ -442,8 +445,8 @@ void keyword_matches(const String& untagged_str, unordered_set<Keyword const*> k
void sort_keyword_matches(vector<KeywordMatch>& matches) {
// sort matches by their start position
sort(matches.begin(), matches.end(), [](KeywordMatch const& a, KeywordMatch const& b) {
if (a.match[0].begin() < b.match[0].begin()) return true;
if (a.match[0].begin() > b.match[0].begin()) return false;
if (a.pos < b.pos) return true;
if (a.pos > b.pos) return false;
// otherwise sort by matching set keywords (non-fixed) first
if (a.keyword->fixed < b.keyword->fixed) return true;
if (a.keyword->fixed > b.keyword->fixed) return false;
@@ -516,8 +519,8 @@ String expand_keywords(const String& tagged_str, vector<KeywordMatch> const& mat
skip_tags_for_keyword(false, true);
if (it == end) break;
// is there a match here?
while (match_it != matches.end() && (size_t)match_it->match.position() <= untagged_pos) {
if ((size_t)match_it->match.position() > untagged_pos) {
while (match_it != matches.end() && match_it->pos <= untagged_pos) {
if (match_it->pos > untagged_pos) {
++match_it;
continue;
}