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Add parsing for centimeters into the numeric evaluator 

ADDED: Allow cm as a unit in text field expressions

Fixes https://gitlab.com/kicad/code/kicad/issues/4797
This commit is contained in:
Ian McInerney 2020-07-07 19:59:26 +01:00
parent 4cd0ec8808
commit 0f0e845d74
2 changed files with 18 additions and 9 deletions
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23
common/libeval/numeric_evaluator.cpp
View File

@ -62,9 +62,9 @@ NUMERIC_EVALUATOR::NUMERIC_EVALUATOR( EDA_UNITS aUnits, bool aUseMils )
m_defaultUnits = Unit::Inch;
break;
case EDA_UNITS::MILLIMETRES:
m_defaultUnits = Unit::Metric;
m_defaultUnits = Unit::MM;
break;
default:m_defaultUnits = Unit::Metric;
default:m_defaultUnits = Unit::MM;
break;
}
}
@ -239,7 +239,13 @@ NUMERIC_EVALUATOR::Token NUMERIC_EVALUATOR::getToken()
if( sizeLeft >= 2 && ch == 'm' && cptr[ 1 ] == 'm' && !isalnum( cptr[ 2 ] ))
{
m_token.pos += 2;
return Unit::Metric;
return Unit::MM;
}
if( sizeLeft >= 2 && ch == 'c' && cptr[ 1 ] == 'm' && !isalnum( cptr[ 2 ] ))
{
m_token.pos += 2;
return Unit::CM;
}
if( sizeLeft >= 2 && ch == 'i' && cptr[ 1 ] == 'n' && !isalnum( cptr[ 2 ] ))
@ -298,13 +304,14 @@ NUMERIC_EVALUATOR::Token NUMERIC_EVALUATOR::getToken()
// The factor is assigned to the terminal UNIT. The actual
// conversion is done within a parser action.
retval.token = UNIT;
if( m_defaultUnits == Unit::Metric )
if( m_defaultUnits == Unit::MM )
{
switch( convertFrom )
{
case Unit::Inch :retval.value.dValue = 25.4; break;
case Unit::Mil :retval.value.dValue = 25.4 / 1000.0; break;
case Unit::Metric :retval.value.dValue = 1.0; break;
case Unit::MM :retval.value.dValue = 1.0; break;
case Unit::CM :retval.value.dValue = 10.0; break;
case Unit::Invalid :break;
}
}
@ -314,7 +321,8 @@ NUMERIC_EVALUATOR::Token NUMERIC_EVALUATOR::getToken()
{
case Unit::Inch :retval.value.dValue = 1.0; break;
case Unit::Mil :retval.value.dValue = 1.0 / 1000.0; break;
case Unit::Metric :retval.value.dValue = 1.0 / 25.4; break;
case Unit::MM :retval.value.dValue = 1.0 / 25.4; break;
case Unit::CM :retval.value.dValue = 1.0 / 2.54; break;
case Unit::Invalid :break;
}
}
@ -324,7 +332,8 @@ NUMERIC_EVALUATOR::Token NUMERIC_EVALUATOR::getToken()
{
case Unit::Inch :retval.value.dValue = 1.0 * 1000.0; break;
case Unit::Mil :retval.value.dValue = 1.0; break;
case Unit::Metric :retval.value.dValue = 1000.0 / 25.4; break;
case Unit::MM :retval.value.dValue = 1000.0 / 25.4; break;
case Unit::CM :retval.value.dValue = 1000.0 / 2.54; break;
case Unit::Invalid :break;
}
}

2
include/libeval/numeric_evaluator.h
View File

@ -93,7 +93,7 @@ namespace numEval
class NUMERIC_EVALUATOR
{
enum class Unit { Invalid, Metric, Inch, Mil };
enum class Unit { Invalid, MM, CM, Inch, Mil };
public:
NUMERIC_EVALUATOR( EDA_UNITS aUnits, bool aUseMils = false );