github_mirrors/vectorscan
3
0
Fork 1
mirror of https://github.com/VectorCamp/vectorscan.git synced 2025-06-28 16:41:01 +03:00
Code Issues Packages Projects Releases Wiki Activity

ComponentRepeat: wire X{0,N} and (X?){N} the same

Browse Source
This commit is contained in:
Justin Viiret 2016-01-04 15:23:28 +11:00 committed by Matthew Barr
parent 997c0c9efd
commit 3d049d6de3
1 changed files with 1 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
src/parser/ComponentRepeat.cpp
View File

@ -349,18 +349,7 @@ void ComponentRepeat::precalc_firsts() {
assert(!m_firsts.empty()); // notePositions should already have run
const vector<PositionInfo> &f = m_firsts.front();
if (sub_comp->empty()) {
// Emptiable: all our repeats contribute to firsts.
// Each repeat's firsts is spliced in at the location of the epsilon
// (if any) in the previous repeat's firsts.
for (const auto &e : m_firsts) {
replaceEpsilons(firsts_cache, e);
}
} else {
// Not emptiable: firsts come from our first repeat only.
firsts_cache.insert(firsts_cache.end(), f.begin(), f.end());
}
firsts_cache.insert(firsts_cache.end(), f.begin(), f.end());
}
static