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Combiner.cpp
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#include <array>
#include <iostream>
#include <unordered_set>
#include <algorithm>
#include <kiwi/Utils.h>
#include <kiwi/TagUtils.h>
#include "Combiner.h"
#include "FeatureTestor.h"
#include "StrUtils.h"
#include "RaggedVector.hpp"
using namespace std;
using namespace kiwi;
using namespace kiwi::cmb;
ChrSet::ChrSet() = default;
ChrSet::ChrSet(const ChrSet&) = default;
ChrSet::ChrSet(ChrSet&&) noexcept = default;
ChrSet::~ChrSet() = default;
ChrSet& ChrSet::operator=(const ChrSet&) = default;
ChrSet& ChrSet::operator=(ChrSet&&) = default;
Pattern::Pattern() = default;
Pattern::Pattern(const Pattern&) = default;
Pattern::Pattern(Pattern&&) noexcept = default;
Pattern::~Pattern() = default;
Pattern& Pattern::operator=(const Pattern&) = default;
Pattern& Pattern::operator=(Pattern&&) = default;
CompiledRule::CompiledRule() = default;
CompiledRule::CompiledRule(const CompiledRule&) = default;
CompiledRule::CompiledRule(CompiledRule&&) noexcept = default;
CompiledRule::~CompiledRule() = default;
CompiledRule& CompiledRule::operator=(const CompiledRule&) = default;
CompiledRule& CompiledRule::operator=(CompiledRule&&) = default;
RuleSet::RuleSet() = default;
RuleSet::RuleSet(const RuleSet&) = default;
RuleSet::RuleSet(RuleSet&&) noexcept = default;
RuleSet::~RuleSet() = default;
RuleSet& RuleSet::operator=(const RuleSet&) = default;
RuleSet& RuleSet::operator=(RuleSet&&) = default;
namespace kiwi
{
inline bool hasRange(const ChrSet& set, char16_t b, char16_t e)
{
for (auto& p : set.ranges)
{
if (p.first <= b && e <= p.second) return !set.negation;
}
return set.negation;
}
inline Vector<POSTag> getSubTagset(const string& prefix)
{
Vector<POSTag> ret;
for (auto pf : split(prefix, ','))
{
if (pf == "P")
{
ret.emplace_back(POSTag::pv);
ret.emplace_back(POSTag::pa);
ret.emplace_back(POSTag::pvi);
ret.emplace_back(POSTag::pai);
}
else if (pf == "PV")
{
ret.emplace_back(POSTag::pv);
ret.emplace_back(POSTag::pvi);
}
else if (pf == "PA")
{
ret.emplace_back(POSTag::pa);
ret.emplace_back(POSTag::pai);
}
else if (pf == "PV-I")
{
ret.emplace_back(POSTag::pvi);
}
else if (pf == "PA-I")
{
ret.emplace_back(POSTag::pai);
}
else if (pf == "PR")
{
ret.emplace_back(POSTag::pv);
ret.emplace_back(POSTag::pa);
}
else if (pf == "PI")
{
ret.emplace_back(POSTag::pvi);
ret.emplace_back(POSTag::pai);
}
else if (pf == "VV-R")
{
ret.emplace_back(POSTag::vv);
}
else if (pf == "VA-R")
{
ret.emplace_back(POSTag::va);
}
else if (pf == "VX-R")
{
ret.emplace_back(POSTag::vx);
}
else
{
for (auto i = POSTag::nng; i < POSTag::p; i = (POSTag)((size_t)i + 1))
{
if (strncmp(tagToString(i), pf.data(), pf.size()) == 0)
{
ret.emplace_back(i);
}
}
for (auto i : { POSTag::vvi, POSTag::vai, POSTag::vxi, POSTag::xsai })
{
if (strncmp(tagToString(i), pf.data(), pf.size()) == 0)
{
ret.emplace_back(i);
}
}
}
}
return ret;
}
inline Vector<uint8_t> getSubFeatset(CondPolarity polar)
{
switch (polar)
{
case CondPolarity::none:
return { 0, 1 };
case CondPolarity::negative:
return { 0 };
case CondPolarity::positive:
default:
return { 1 };
}
}
inline Vector<uint8_t> getSubFeatset(CondVowel vowel)
{
switch (vowel)
{
case CondVowel::none:
return { 0, 2 };
case CondVowel::non_vowel:
return { 0 };
case CondVowel::vowel:
default:
return { 2 };
}
}
template<class Ty, class It>
inline void inplaceUnion(Vector<Ty>& dest, It first, It last)
{
auto mid = dest.size();
dest.insert(dest.end(), first, last);
inplace_merge(dest.begin(), dest.begin() + mid, dest.end());
dest.erase(unique(dest.begin(), dest.end()), dest.end());
}
inline ReplString parseReplString(KString&& str)
{
bool escape = false;
size_t leftEnd = -1, rightBegin = 0;
size_t target = 0;
float score = 0;
for (size_t i = 0; i < str.size(); ++i)
{
if (escape)
{
switch (str[i])
{
case '1':
str[target++] = 1;
break;
case '2':
str[target++] = 2;
break;
case '(':
case ')':
case '\\':
case '-':
str[target++] = str[i];
break;
default:
str[target++] = '\\';
str[target++] = str[i];
}
escape = false;
}
else
{
switch (str[i])
{
case '\\':
escape = true;
break;
case '(':
rightBegin = target;
break;
case ')':
leftEnd = target;
break;
case '-':
score = stof(str.begin() + i, str.end());
i = str.size();
break;
default:
str[target++] = str[i];
}
}
}
str.erase(str.begin() + target, str.end());
return { move(str), leftEnd, rightBegin, score };
}
}
ChrSet::ChrSet(char16_t chr)
{
ranges.emplace_back((uint16_t)chr, (uint16_t)chr);
}
Pattern::Pattern(const KString& expr)
{
static constexpr ptrdiff_t endIdx = numeric_limits<ptrdiff_t>::max();
struct Group
{
ptrdiff_t prev = 0;
Vector<ptrdiff_t> last;
};
Vector<Group> groupStack;
ptrdiff_t lastNode = 0, beforeNode = 0;
nodes.emplace_back();
groupStack.emplace_back();
groupStack.back().prev = lastNode;
bool inCharClass = false;
bool inRange = false;
ChrSet charClass;
for (size_t i = 0; i < expr.size(); ++i)
{
switch (expr[i])
{
case u'(':
if (inCharClass) goto addIntoClass;
groupStack.emplace_back();
groupStack.back().prev = lastNode;
continue;
case u')':
if (inCharClass) goto addIntoClass;
if (groupStack.size() <= 1) throw runtime_error{ "unpaired closing parenthesis" };
beforeNode = groupStack.back().prev;
for (auto& node : nodes)
{
auto& nodeNext = node.next;
auto it = nodeNext.find(endIdx);
if (it == nodeNext.end()) continue;
swap(nodeNext[lastNode - (&node - nodes.data())], it->second);
nodeNext.erase(it);
}
groupStack.pop_back();
continue;
case u'|':
if (inCharClass) goto addIntoClass;
{
nodes.pop_back();
groupStack.back().last.emplace_back(lastNode - 1);
for (auto& node : nodes)
{
auto& nodeNext = node.next;
auto it = nodeNext.find(lastNode - (&node - nodes.data()));
if (it == nodeNext.end()) continue;
swap(nodeNext[endIdx], it->second);
nodeNext.erase(it);
}
lastNode = groupStack.back().prev;
}
continue;
case u'[':
if (inCharClass) goto addIntoClass;
inCharClass = true;
inRange = false;
charClass = {};
continue;
case u']':
if (inCharClass)
{
if (inRange) throw runtime_error{ "unpaired range in character class" };
inCharClass = false;
goto addSingleNode;
}
else
{
throw runtime_error{ "unpaired ]" };
}
continue;
case u'^':
if (inCharClass)
{
if (charClass.ranges.empty())
{
charClass.negation = true;
}
else goto addIntoClass;
}
else
{
charClass = { bos };
goto addSingleNode;
}
continue;
case u'$':
if (inCharClass) goto addIntoClass;
charClass = { eos };
goto addSingleNode;
case u'-':
if (inCharClass)
{
if (charClass.ranges.empty())
{
goto addIntoClass;
}
else
{
inRange = true;
}
}
else
{
charClass = { expr[i] };
goto addSingleNode;
}
continue;
case u'+':
case u'*':
case u'?':
if (inCharClass) goto addIntoClass;
if (beforeNode == lastNode) throw runtime_error{ "not allowed quantifier position" };
if (expr[i] == u'*' || expr[i] == u'?')
{
nodes[beforeNode].next[lastNode - beforeNode].skippable = true;
}
if (expr[i] == u'+' || expr[i] == u'*')
{
ptrdiff_t c = (ptrdiff_t)nodes.size();
nodes[lastNode].next[beforeNode - lastNode].skippable = true;
nodes[lastNode].next[c - lastNode].skippable = true;
nodes.emplace_back();
beforeNode = c;
lastNode = c;
}
continue;
case u'.':
if (inCharClass) goto addIntoClass;
charClass = {};
charClass.ranges.emplace_back(bos, 0xFFFF);
goto addSingleNode;
default:
if (inCharClass) goto addIntoClass;
charClass = { expr[i] };
goto addSingleNode;
}
addIntoClass:
{
if (inRange)
{
if (charClass.ranges.back().first != charClass.ranges.back().second)
{
throw runtime_error{ "unpaired range in character class" };
}
char16_t leftChr = charClass.ranges.back().first;
if (leftChr >= expr[i])
{
throw runtime_error{ "invalid character range: " + utf8FromCode(leftChr) + "-" + utf8FromCode(expr[i])};
}
charClass.ranges.back().second = expr[i];
inRange = false;
}
else
{
charClass.ranges.emplace_back(expr[i], expr[i]);
}
continue;
}
addSingleNode:
{
ptrdiff_t c = (ptrdiff_t)nodes.size();
nodes[lastNode].next[c - lastNode] = move(charClass);
nodes.emplace_back();
beforeNode = lastNode;
lastNode = c;
continue;
}
}
if (groupStack.size() > 1) throw runtime_error{ "unpaired open parenthesis" };
for (auto n : groupStack.back().last)
{
auto& nodeNext = nodes[n].next;
auto it = nodeNext.find(endIdx);
swap(nodeNext[lastNode - n], it->second);
nodeNext.erase(it);
}
for (auto& n : nodes)
{
for (auto& nn : n.next)
{
if (nn.second.negation)
{
nn.second.ranges.emplace_back(ruleSep, ruleSep);
}
sort(nn.second.ranges.begin(), nn.second.ranges.end());
}
}
}
void Pattern::Node::getEpsilonTransition(ptrdiff_t thisOffset, Vector<ptrdiff_t>& ret) const
{
ret.emplace_back(thisOffset);
for (auto& p : next)
{
if (p.second.skippable)
{
if (find(ret.begin(), ret.end(), p.first + thisOffset) != ret.end()) continue;
this[p.first].getEpsilonTransition(p.first + thisOffset, ret);
}
}
}
Vector<ptrdiff_t> Pattern::Node::getEpsilonTransition(ptrdiff_t thisOffset) const
{
Vector<ptrdiff_t> ret;
getEpsilonTransition(thisOffset, ret);
sort(ret.begin(), ret.end());
ret.erase(unique(ret.begin(), ret.end()), ret.end());
return ret;
}
RaggedVector<ptrdiff_t> Pattern::Node::getTransitions(const Vector<char16_t>& vocabs, const Vector<Vector<ptrdiff_t>>& epsilonTable, ptrdiff_t thisOffset) const
{
RaggedVector<ptrdiff_t> ret;
for (size_t i = 0; i < vocabs.size(); ++i)
{
char16_t b = vocabs[i];
char16_t e = (i + 1 < vocabs.size()) ? (vocabs[i + 1] - 1) : numeric_limits<char16_t>::max();
ret.emplace_back();
for (auto& p : next)
{
if (hasRange(p.second, b, e))
{
auto& et = epsilonTable[p.first + thisOffset];
ret.insert_data(et.begin(), et.end());
}
}
sort(ret[i].begin(), ret[i].end());
}
return ret;
}
Vector<char16_t> RuleSet::getVocabList(const Vector<Pattern::Node>& nodes)
{
using CRange = pair<const char16_t*, const char16_t*>;
Vector<char16_t> ret;
ret.emplace_back(0);
ret.emplace_back(1);
ret.emplace_back(2);
ret.emplace_back(3);
Vector<CRange> ranges;
for (auto& n : nodes)
{
for (auto& p : n.next)
{
if (p.second.ranges.empty()) continue;
ranges.emplace_back(
(const char16_t*)p.second.ranges.data(),
(const char16_t*)(p.second.ranges.data() + p.second.ranges.size())
);
}
}
while (!all_of(ranges.begin(), ranges.end(), [](const CRange& x)
{
return x.first == x.second;
}))
{
auto& minElem = *min_element(ranges.begin(), ranges.end(), [](const CRange& x, const CRange& y)
{
if (x.first == x.second) return false;
if (y.first == y.second) return true;
auto xv = *x.first + (x.second - x.first) % 2;
auto yv = *y.first + (y.second - y.first) % 2;
return xv < yv;
});
char16_t v = *minElem.first + (minElem.second - minElem.first) % 2;
if (ret.empty() || ret.back() < v)
{
ret.emplace_back(v);
}
minElem.first++;
}
return ret;
}
template<class NodeSizeTy, class GroupSizeTy>
template<class _NodeSizeTy>
auto MultiRuleDFA<NodeSizeTy, GroupSizeTy>::fromOther(MultiRuleDFA<_NodeSizeTy, GroupSizeTy>&& o) -> MultiRuleDFA
{
MultiRuleDFA ret;
ret.vocabs = move(o.vocabs);
ret.finish = move(o.finish);
ret.finishGroup = move(o.finishGroup);
ret.groupInfo = move(o.groupInfo);
ret.sepGroupFlatten = move(o.sepGroupFlatten);
ret.sepGroupPtrs.insert(ret.sepGroupPtrs.end(), o.sepGroupPtrs.begin(), o.sepGroupPtrs.end());
ret.transition.insert(ret.transition.end(), o.transition.begin(), o.transition.end());
return ret;
}
template<class GroupSizeTy>
MultiRuleDFAErased RuleSet::buildRules(
size_t ruleSize,
const Vector<Pattern::Node>& nodes,
const Vector<size_t>& ends,
const Vector<size_t>& startingGroup,
const Vector<size_t>& sepPositions,
Vector<Replacement>&& finish
)
{
MultiRuleDFA<uint64_t, GroupSizeTy> ret;
ret.finish = move(finish);
Vector<Vector<ptrdiff_t>> epsilonTable;
for (auto& n : nodes)
{
epsilonTable.emplace_back(n.getEpsilonTransition(&n - nodes.data()));
}
ret.vocabs = getVocabList(nodes);
Vector<RaggedVector<ptrdiff_t>> transitionTable;
for (auto& n : nodes)
{
transitionTable.emplace_back(n.getTransitions(ret.vocabs, epsilonTable, &n - nodes.data()));
}
UnorderedMap<Vector<ptrdiff_t>, size_t> dfaIdxMapper;
Vector<Vector<ptrdiff_t>> dfaInvIdx;
size_t visited = 0;
dfaInvIdx.emplace_back(dfaIdxMapper.emplace(Vector<ptrdiff_t>{ { 0 } }, 0).first->first);
for (size_t visited = 0; visited < dfaInvIdx.size(); ++visited)
{
auto p = dfaInvIdx[visited];
size_t finishGroup = -1;
for (auto& e : ends)
{
if (binary_search(p.begin(), p.end(), e))
{
finishGroup = (size_t)(&e - ends.data());
break;
}
}
ret.finishGroup.emplace_back(finishGroup);
ret.groupInfo.emplace_back(ruleSize);
for (auto i : p)
{
if (startingGroup[i] == (size_t)-1) continue;
ret.groupInfo.back().set(startingGroup[i]);
}
ret.sepGroupPtrs.emplace_back(ret.sepGroupFlatten.size());
for (auto& e : sepPositions)
{
if (binary_search(p.begin(), p.end(), e))
{
ret.sepGroupFlatten.emplace_back((GroupSizeTy)(&e - sepPositions.data()));
}
}
for (size_t v = 0; v < ret.vocabs.size(); ++v)
{
Vector<ptrdiff_t> set;
if (p[0] == 0 && v != Pattern::ruleSep) // begin node
{
set.emplace_back(0);
}
if (finishGroup != (size_t)-1) // end node
{
set.emplace_back(ends[finishGroup]);
}
for (auto i : p)
{
inplaceUnion(set, transitionTable[i][v].begin(), transitionTable[i][v].end());
}
if (set.empty())
{
ret.transition.emplace_back(-1);
}
else
{
auto inserted = dfaIdxMapper.emplace(move(set), dfaIdxMapper.size());
if (inserted.second)
{
dfaInvIdx.emplace_back(inserted.first->first);
}
ret.transition.emplace_back(inserted.first->second);
}
}
}
if (dfaInvIdx.size() < 0xFF)
{
return MultiRuleDFA<uint8_t, GroupSizeTy>::fromOther(move(ret));
}
else if (dfaInvIdx.size() < 0xFFFF)
{
return MultiRuleDFA<uint16_t, GroupSizeTy>::fromOther(move(ret));
}
else if (dfaInvIdx.size() < 0xFFFFFFFF)
{
return MultiRuleDFA<uint32_t, GroupSizeTy>::fromOther(move(ret));
}
return ret;
}
template<class GroupSizeTy>
MultiRuleDFAErased RuleSet::buildRules(const Vector<Rule>& rules)
{
Vector<Pattern::Node> nodes(1);
Vector<size_t> ends, startingGroup, sepPositions;
Vector<Replacement> finish;
for (auto& r : rules)
{
ptrdiff_t size = nodes.size() - 1;
for (auto& p : r.left.nodes[0].next)
{
nodes[0].next[p.first + size] = p.second;
}
nodes.insert(nodes.end(), r.left.nodes.begin() + 1, r.left.nodes.end());
nodes.back().next[1] = { Pattern::ruleSep };
sepPositions.emplace_back(nodes.size());
nodes.insert(nodes.end(), r.right.nodes.begin(), r.right.nodes.end());
startingGroup.resize(nodes.size(), -1);
for (auto& p : r.left.nodes[0].next)
{
startingGroup[p.first + size] = finish.size();
}
ends.emplace_back(nodes.size() - 1);
finish.emplace_back(r.repl);
}
auto ret = buildRules<GroupSizeTy>(rules.size(), nodes, ends, startingGroup, sepPositions, move(finish));
return ret;
}
MultiRuleDFAErased RuleSet::buildRules(const Vector<Rule>& rules)
{
if (rules.size() <= 0xFF)
{
return buildRules<uint8_t>(rules);
}
else if (rules.size() <= 0xFFFF)
{
return buildRules<uint16_t>(rules);
}
else if (rules.size() <= 0xFFFFFFFF)
{
return buildRules<uint32_t>(rules);
}
else
{
return buildRules<uint64_t>(rules);
}
}
MultiRuleDFAErased RuleSet::buildRightPattern(const Vector<Rule>& rules)
{
Vector<Pattern::Node> nodes(1);
Vector<size_t> ends, startingGroup;
for (auto& r : rules)
{
ptrdiff_t size = nodes.size();
nodes[0].next[size] = { Pattern::bos };
nodes.insert(nodes.end(), r.right.nodes.begin(), r.right.nodes.end());
startingGroup.resize(nodes.size(), -1);
ends.emplace_back(nodes.size() - 1);
}
auto ret = buildRules<uint8_t>(rules.size(), nodes, ends, startingGroup);
return ret;
}
void RuleSet::addRule(const string& lTag, const string& rTag,
const KString& lPat, const KString& rPat, const vector<ReplString>& results,
CondVowel leftVowel, CondPolarity leftPolar, bool ignoreRCond
)
{
auto lTags = getSubTagset(lTag);
auto rTags = getSubTagset(rTag);
if (lTags.empty() || rTags.empty()) return;
bool broadcastableVowel = false;
char16_t lPatVowel = 0;
Vector<char16_t> resultsVowel;
if (isHangulVowel(lPat[0]))
{
lPatVowel = lPat[0] - u'ㅏ';
for (auto& r : results)
{
if (!isHangulVowel(r.str[0])) throw runtime_error{ "invalid Hangul composition: left=" + utf16To8(joinHangul(lPat)) + ", result=" + utf16To8(joinHangul(r.str)) };
resultsVowel.emplace_back(r.str[0] - u'ㅏ');
}
broadcastableVowel = true;
}
size_t ruleId = rules.size();
if (broadcastableVowel)
{
auto bPat = lPat;
Vector<ReplString> bResults{ results.begin(), results.end() };
for (size_t onset = 0; onset < 19; ++onset)
{
bPat[0] = joinOnsetVowel(onset, lPatVowel);
for (size_t n = 0; n < results.size(); ++n) bResults[n].str[0] = joinOnsetVowel(onset, resultsVowel[n]);
rules.emplace_back(bPat, rPat, bResults, leftVowel, leftPolar, ignoreRCond);
}
}
else
{
rules.emplace_back(lPat, rPat, Vector<ReplString>{ results.begin(), results.end() }, leftVowel, leftPolar, ignoreRCond);
}
for (auto l : lTags)
{
for (auto r : rTags)
{
for (auto f1 : getSubFeatset(leftVowel)) for (auto f2 : getSubFeatset(leftPolar))
{
if (broadcastableVowel)
{
auto& target = ruleset[make_tuple(l, r, f1 | f2)];
for (size_t i = 0; i < 19; ++i)
{
target.emplace_back(ruleId + i);
}
}
else
{
ruleset[make_tuple(l, r, f1 | f2)].emplace_back(ruleId);
}
}
}
}
}
void RuleSet::loadRules(istream& istr)
{
string line;
string lTag, rTag;
while (getline(istr, line))
{
if (line[0] == '#') continue;
while (!line.empty() && line.back() < 0x80 && isSpace(line.back())) line.pop_back();
if (line.empty()) continue;
auto fields = split(line, '\t');
if (fields.size() < 2)
{
throw runtime_error{ "wrong line: " + line };
}
else if (fields.size() == 2)
{
lTag = fields[0].to_string();
rTag = fields[1].to_string();
}
else
{
CondVowel cv = CondVowel::none;
CondPolarity cp = CondPolarity::none;
bool ignoreRCond = false;
if (fields.size() >= 4)
{
static array<const char*, 5> fs = {
"+positive",
"-positive",
"+coda",
"-coda",
"+ignorercond",
};
transform(fields[3].begin(), fields[3].end(), const_cast<char*>(fields[3].begin()), static_cast<int(*)(int)>(tolower));
for (auto f : split(fields[3], ','))
{
size_t t = find(fs.begin(), fs.end(), f) - fs.begin();
if (t >= fs.size())
{
throw runtime_error{ "invalid feature value: " + f.to_string()};
}
switch (t)
{
case 0:
cp = CondPolarity::positive;
break;
case 1:
cp = CondPolarity::negative;
break;
case 2:
cv = CondVowel::non_vowel;
break;
case 3:
cv = CondVowel::vowel;
break;
case 4:
ignoreRCond = true;
break;
}
}
}
vector<ReplString> repl;
auto normalizedResult = normalizeHangul(fields[2]);
for (auto r : split(normalizedResult, u','))
{
repl.emplace_back(parseReplString(KString{ r.begin(), r.end() }));
}
addRule(lTag, rTag,
normalizeHangul(fields[0]),
normalizeHangul(fields[1]),
repl,
cv,
cp,
ignoreRCond
);
}
}
}
CompiledRule RuleSet::compile() const
{
CompiledRule ret;
UnorderedMap<Vector<size_t>, size_t> mapper;
for (auto& p : ruleset)
{
auto inserted = mapper.emplace(p.second, mapper.size());
if (inserted.second)
{
Vector<Rule> rs;
for (auto i : p.second) rs.emplace_back(rules[i]);
ret.dfa.emplace_back(buildRules(rs));
ret.dfaRight.emplace_back(buildRightPattern(rs));
}
ret.map.emplace(p.first, inserted.first->second);
}
return ret;
}
template<class NodeSizeTy, class GroupSizeTy>
Vector<Result> MultiRuleDFA<NodeSizeTy, GroupSizeTy>::combine(U16StringView left, U16StringView right) const
{
static constexpr NodeSizeTy no_node = -1;
static constexpr GroupSizeTy no_group = -1;
Vector<Result> ret;
Vector<size_t> capturedLefts(finish.size());
size_t nidx = 0, cpos = 0, capturedLeft = 0, capturedRight = 0, groupCapturedR = no_group;
const size_t vsize = vocabs.size();
nidx = transition[nidx * vsize + Pattern::bos];
groupInfo[nidx].visit([&](size_t i)
{
capturedLefts[i] = cpos;
});
for (auto c : left)
{
if (nidx == no_node) goto not_matched;
size_t v = (size_t)(upper_bound(vocabs.begin(), vocabs.end(), c) - vocabs.begin()) - 1;
nidx = transition[nidx * vsize + v];
if (nidx != no_node) groupInfo[nidx].visit([&](size_t i)
{
capturedLefts[i] = cpos;
});
cpos++;
}
if (nidx == no_node) goto not_matched;
nidx = transition[nidx * vsize + Pattern::ruleSep];
cpos = 0;
for (auto c : right)
{
if (nidx == no_node) goto not_matched;
size_t v = (size_t)(upper_bound(vocabs.begin(), vocabs.end(), c) - vocabs.begin()) - 1;
nidx = transition[nidx * vsize + v];
cpos++;
if (nidx != no_node && finishGroup[nidx] != no_group)
{
if(groupCapturedR != finishGroup[nidx]) capturedRight = cpos;
groupCapturedR = finishGroup[nidx];
}
}
if (nidx == no_node) goto not_matched;
nidx = transition[nidx * vsize + Pattern::eos];
if (nidx == no_node || finishGroup[nidx] == no_group) goto not_matched;
if (capturedRight == 0) capturedRight = cpos;
capturedLeft = capturedLefts[finishGroup[nidx]];
for (auto& r : finish[finishGroup[nidx]].repl)
{
size_t leftEnd, rightBegin;
KString t{ left.begin(), left.begin() + capturedLeft };
if (r.leftEnd == 0) leftEnd = t.size();
if (r.rightBegin == 0) rightBegin = t.size();
for (size_t i = 0; i < r.str.size(); ++i)
{
auto c = r.str[i];
switch (c)
{
case 1:
t.insert(t.end(), left.begin() + capturedLeft, left.end());
break;
case 2:
t.insert(t.end(), right.begin(), right.begin() + capturedRight);
break;
default:
t.push_back(c);
break;
}
if (r.leftEnd == i + 1) leftEnd = t.size();
if (r.rightBegin == i + 1) rightBegin = t.size();
}
t.insert(t.end(), right.begin() + capturedRight, right.end());
ret.emplace_back(
move(t),
leftEnd,
rightBegin,
finish[finishGroup[nidx]].leftVowel,
finish[finishGroup[nidx]].leftPolarity,
finish[finishGroup[nidx]].ignoreRCond,
r.score
);
}
not_matched:
return ret;
}
template<class NodeSizeTy, class GroupSizeTy>
Vector<tuple<size_t, size_t, CondPolarity>> MultiRuleDFA<NodeSizeTy, GroupSizeTy>::searchLeftPat(U16StringView left, bool matchRulSep) const
{
static constexpr NodeSizeTy no_node = -1;
static constexpr GroupSizeTy no_group = -1;
Vector<tuple<size_t, size_t, CondPolarity>> ret;
Vector<size_t> capturedLefts(finish.size());
size_t nidx = 0, cpos = 0;
const size_t vsize = vocabs.size();
nidx = transition[nidx * vsize + Pattern::bos];
groupInfo[nidx].visit([&](size_t i)
{
capturedLefts[i] = cpos;
});
for (auto c : left)
{
if (nidx == no_node) goto not_matched;
size_t v = (size_t)(upper_bound(vocabs.begin(), vocabs.end(), c) - vocabs.begin()) - 1;
nidx = transition[nidx * vsize + v];
if (nidx != no_node) groupInfo[nidx].visit([&](size_t i)
{
capturedLefts[i] = cpos;
});
cpos++;
}