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Refactor plain scalar validation in the emitter to precompute the invalid regexes

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Jesse Beder
2015-01-24 16:29:57 -06:00
parent bc86fd4aec
commit 77c90a08e8
1 changed files with 11 additions and 5 deletions
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16
src/emitterutils.cpp
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@@ -175,11 +175,17 @@ bool IsValidPlainScalar(const std::string& str, FlowType::value flowType,
} }
// then check until something is disallowed // then check until something is disallowed
const RegEx& disallowed = (flowType == FlowType::Flow ? Exp::EndScalarInFlow() static const RegEx& disallowed_flow =
: Exp::EndScalar()) || Exp::EndScalarInFlow() || (Exp::BlankOrBreak() + Exp::Comment()) ||
(Exp::BlankOrBreak() + Exp::Comment()) || Exp::NotPrintable() || Exp::Utf8_ByteOrderMark() || Exp::Break() ||
Exp::NotPrintable() || Exp::Utf8_ByteOrderMark() || Exp::Tab();
Exp::Break() || Exp::Tab(); static const RegEx& disallowed_block =
Exp::EndScalar() || (Exp::BlankOrBreak() + Exp::Comment()) ||
Exp::NotPrintable() || Exp::Utf8_ByteOrderMark() || Exp::Break() ||
Exp::Tab();
const RegEx& disallowed =
flowType == FlowType::Flow ? disallowed_flow : disallowed_block;
StringCharSource buffer(str.c_str(), str.size()); StringCharSource buffer(str.c_str(), str.size());
while (buffer) { while (buffer) {
if (disallowed.Matches(buffer)) { if (disallowed.Matches(buffer)) {