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Fix #246

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yhirose 2022-09-20 16:28:20 +00:00
parent 6bab6fb851
commit dde4aaeb2f
1 changed files with 5 additions and 4 deletions
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9
peglib.h
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@ -4676,9 +4676,9 @@ private:
*---------------------------------------------------------------------------*/ *---------------------------------------------------------------------------*/
inline void enable_tracing(parser &parser, std::ostream &os) { inline void enable_tracing(parser &parser, std::ostream &os) {
size_t prev_pos = 0;
parser.enable_trace( parser.enable_trace(
[&](auto &ope, auto s, auto, auto &, auto &c, auto &, auto &) { [&](auto &ope, auto s, auto, auto &, auto &c, auto &, auto &trace_data) {
auto prev_pos = std::any_cast<size_t>(trace_data);
auto pos = static_cast<size_t>(s - c.s); auto pos = static_cast<size_t>(s - c.s);
auto backtrack = (pos < prev_pos ? "*" : ""); auto backtrack = (pos < prev_pos ? "*" : "");
std::string indent; std::string indent;
@ -4695,7 +4695,7 @@ inline void enable_tracing(parser &parser, std::ostream &os) {
} }
os << "E " << pos + 1 << backtrack << "\t" << indent << "┌" << name os << "E " << pos + 1 << backtrack << "\t" << indent << "┌" << name
<< " #" << c.trace_ids.back() << std::endl; << " #" << c.trace_ids.back() << std::endl;
prev_pos = static_cast<size_t>(pos); trace_data = static_cast<size_t>(pos);
}, },
[&](auto &ope, auto s, auto, auto &sv, auto &c, auto &, auto len, [&](auto &ope, auto s, auto, auto &sv, auto &c, auto &, auto len,
auto &) { auto &) {
@ -4727,7 +4727,8 @@ inline void enable_tracing(parser &parser, std::ostream &os) {
<< c.trace_ids.back() << choice.str() << token << matched << c.trace_ids.back() << choice.str() << token << matched
<< std::endl; << std::endl;
}, },
[&](auto &) {}, [&](auto &) {}); [&](auto &trace_data) { trace_data = static_cast<size_t>(0); },
[&](auto &) {});
} }
/*----------------------------------------------------------------------------- /*-----------------------------------------------------------------------------