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Refactored bool emitting to make it 1) correct for the short bool form and 2) not barf on early versions of VS

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This commit is contained in:
Jesse Beder
2011-03-02 20:55:05 +00:00
parent 1e0c36c5cc
commit 39c396ab01
3 changed files with 79 additions and 26 deletions
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68
src/emitter.cpp
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@@ -606,12 +606,45 @@ namespace YAML
PostAtomicWrite();
}
namespace {
struct BoolName { std::string trueName, falseName; };
struct BoolFormatNames { BoolName upper, lower, camel; };
struct BoolTypes { BoolFormatNames yesNo, trueFalse, onOff; };
const char *Emitter::ComputeFullBoolName(bool b) const
{
const EMITTER_MANIP mainFmt = (m_pState->GetBoolLengthFormat() == ShortBool ? YesNoBool : m_pState->GetBoolFormat());
const EMITTER_MANIP caseFmt = m_pState->GetBoolCaseFormat();
switch(mainFmt) {
case YesNoBool:
switch(caseFmt) {
case UpperCase:
return b ? "YES" : "NO";
case CamelCase:
return b ? "Yes" : "No";
case LowerCase: // fall through to default
default:
return b ? "yes" : "no";
}
case OnOffBool:
switch(caseFmt) {
case UpperCase:
return b ? "ON" : "OFF";
case CamelCase:
return b ? "On" : "Off";
case LowerCase: // fall through to default
default:
return b ? "on" : "off";
}
case TrueFalseBool: // fall through to default
default:
switch(caseFmt) {
case UpperCase:
return b ? "TRUE" : "FALSE";
case CamelCase:
return b ? "True" : "False";
case LowerCase: // fall through to default
default:
return b ? "true" : "false";
}
}
}
Emitter& Emitter::Write(bool b)
{
if(!good())
@@ -619,30 +652,13 @@ namespace YAML
PreAtomicWrite();
EmitSeparationIfNecessary();
// set up all possible bools to write
static const BoolTypes boolTypes = {
{ { "YES", "NO" }, { "yes", "no" }, { "Yes", "No" } },
{ { "TRUE", "FALSE" }, { "true", "false" }, { "True", "False" } },
{ { "ON", "OFF" }, { "on", "off" }, { "On", "Off" } }
};
// select the right one
EMITTER_MANIP boolFmt = m_pState->GetBoolFormat();
EMITTER_MANIP boolLengthFmt = m_pState->GetBoolLengthFormat();
EMITTER_MANIP boolCaseFmt = m_pState->GetBoolCaseFormat();
const BoolFormatNames& fmtNames = (boolFmt == YesNoBool ? boolTypes.yesNo : boolFmt == TrueFalseBool ? boolTypes.trueFalse : boolTypes.onOff);
const BoolName& boolName = (boolCaseFmt == UpperCase ? fmtNames.upper : boolCaseFmt == LowerCase ? fmtNames.lower : fmtNames.camel);
const std::string& name = (b ? boolName.trueName : boolName.falseName);
// and say it!
// TODO: should we disallow writing OnOffBool with ShortBool? (it'll just print "o" for both, which is silly)
if(boolLengthFmt == ShortBool)
const char *name = ComputeFullBoolName(b);
if(m_pState->GetBoolLengthFormat() == ShortBool)
m_stream << name[0];
else
m_stream << name;
PostAtomicWrite();
return *this;
}