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196 lines
10 KiB
C
196 lines
10 KiB
C
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//=========== Copyright Valve Corporation, All rights reserved. ===============//
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//
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// Purpose:
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//=============================================================================//
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#ifndef CSSHELPERS_H
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#define CSSHELPERS_H
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#ifdef _WIN32
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#pragma once
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#endif
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#include "float.h"
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#include "tier0/dbg.h"
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#include "tier1/utlvector.h"
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#include "mathlib/vmatrix.h"
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#include "mathlib/beziercurve.h"
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#include "uilength.h"
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#include "fillbrush.h"
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#include "fmtstr.h"
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#include "../text/iuitextlayout.h"
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#include "panorama/layout/stylesymbol.h"
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class CUtlString;
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class Color;
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class CUtlSymbol;
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namespace panorama
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{
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class CTransform3D;
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class CBackgroundPosition;
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class CBackgroundRepeat;
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const char k_rgchCSSDefaultTerm[] = { ' ', ';', '{', '}', ':' };
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const char k_rgchCSSAtRuleNameTerm[] = { ' ', ';', '{', '}' };
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const char k_rgchCSSSelectorTerm[] = { ';', '{', '}' };
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const char k_rgchCSSValueTerm[] = { ';', '{', '}' };
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const char k_rgchCSSValueTermOrEndOfString[] = { ';', '{', '}', '\0' };
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//-----------------------------------------------------------------------------
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// Purpose: defines
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//-----------------------------------------------------------------------------
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const int k_nCSSPropertyNameMax = 128;
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//-----------------------------------------------------------------------------
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// Purpose: string to type routines
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//-----------------------------------------------------------------------------
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const char* PchNameFromEFontWeight( int nValue );
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const char* PchNameFromEFontStyle( int nValue );
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const char* PchNameFromETextAlign( int nValue );
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const char* PchNameFromETextDecoration( int nValue );
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const char *PchNameFromETextTransform( int nValue );
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const char* PchNameFromEAnimationTimingFunction( int nValue );
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const char *PchNameFromEHorizontalAlignment( EHorizontalAlignment eHorizontalAlignment );
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const char *PchNameFromEVerticalAlignment( EVerticalAlignment eVerticalAlignment );
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const char *PchNameFromEContextUIPosition( EContextUIPosition ePosition );
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const char *PchNameFromEBackgroundRepeat( int nValue );
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EFontWeight EFontWeightFromName( const char *pchName );
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EFontStyle EFontStyleFromName( const char *pchName );
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ETextAlign ETextAlignFromName( const char *pchName );
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ETextDecoration ETextDecorationFromName( const char *pchName );
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ETextTransform ETextTransformFromName( const char *pchName );
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EAnimationTimingFunction EAnimationTimingFunctionFromName( const char *pchName );
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//-----------------------------------------------------------------------------
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// Purpose: Common functions for dealing with CSS
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//-----------------------------------------------------------------------------
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namespace CSSHelpers
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{
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bool BParseFillBrushCollection( CFillBrushCollection *pCollection, const char *pchString, const char **pchAfterParse = NULL, float flScalingFactor = 1.0f );
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bool BParseFillBrush( CFillBrush *pBrush, const char *pchString, const char **pchAfterParse = NULL, float flScalingFactor = 1.0f );
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bool BParseGradientColorStop( CGradientColorStop *pColorStop, const char *pchString, const char **pchAfterParse = NULL, float flScalingFactor = 1.0f );
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bool BParseGaussianBlur( float &flPasses, float &flStdDevHorizontal, float &flStdDevVertical, const char *pchString, const char **pchAfterParse = NULL );
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bool BParseColor( Color *pColor, const char *pchString, const char **pchAfterParse = NULL );
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bool BParseRect( CUILength *pTop, CUILength *pRight, CUILength *pBottom, CUILength *pLeft, const char *pchString, const char **pchAfterParse = NULL, float flScalingFactor = 1.0f );
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bool BParseNamedColor( Color *pColor, const char *pchString, const char **pchAfterParse = NULL );
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bool BParseLength( float *pLength, const char *pchString, const char **pchAfterParse = NULL );
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bool BParseNumber( float *pNumber, const char *pchString, const char **pchAfterParse = NULL );
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bool BParseTime( double *pSeconds, const char *pchString, const char **pchAfterParse = NULL );
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bool BParseIdent( char *rgchIdent, int cubIdent, const char *pchString, const char **pchAfterParse = NULL );
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bool BParseIdentToSymbol( CPanoramaSymbol *pSymbol, const char *pchString, const char **pchAfterParse = NULL );
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bool BParseIdentToStyleSymbol( panorama::CStyleSymbol *pSymbol, const char *pchString, const char **pchAfterParse = NULL );
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bool BParseQuotedString( CUtlString &sOutput, const char *pchString, const char **pchAfterParse = NULL );
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bool BParseURL( CUtlString &sPath, const char *pchString, const char **pchAfterParse = NULL );
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bool BParsePercent( float *pPercent, const char *pchString, const char **pchAfterParse = NULL );
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bool BParseIntoUILengthForSizing( CUILength *pLength, const char *pchString, const char **pchAfterParse = NULL, float flScalingFactor = 1.0f );
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bool BParseIntoUILength( CUILength *pLength, const char *pchString, const char **pchAfterParse = NULL, float flScalingFactor = 1.0f );
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bool BParseIntoTwoUILengths( CUILength *pLength1, CUILength *pLength2, const char *pchString, const char **pchAfterParse, float flScalingFactor = 1.0f );
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bool BParseTimingFunction( EAnimationTimingFunction *peTimingFunction, CCubicBezierCurve< Vector2D > *pCubicBezier, const char *pchString, const char **pchAfterParse );
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bool BParseAnimationDirectionFunction( EAnimationDirection *peAnimationDirection, const char *pchString, const char **pchAfterParse );
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bool BParseAngle( float *pDegrees, const char *pchString, const char **pchAfterParse = NULL );
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bool BParseTransformFunction( CTransform3D **pTransform, const char *pchString, const char **pchAfterParse = NULL, float flScalingFactor = 1.0f );
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bool BParseBorderStyle( EBorderStyle *pStyle, const char *pchString, const char **pchAfterParse = NULL );
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bool BParseHorizontalAlignment( EHorizontalAlignment *eHorizontalAlignment, const char *pchString, const char **pchAfterParse = NULL );
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bool BParseVerticalAlignment( EVerticalAlignment *eVerticalAlignment, const char *pchString, const char **pchAfterParse = NULL );
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bool BParseBackgroundPosition( CBackgroundPosition *pPosition, const char *pchString, const char **pchAfterParse = NULL );
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bool BParseBackgroundRepeat( CBackgroundRepeat *pBackgroundRepeat, const char *pchString, const char **pchAfterParse );
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bool BParseFunctionName( CPanoramaSymbol &symFunctionNameOut, const char *pchString, const char **pchAfterParse = NULL );
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template <typename T> bool BParseCommaSepList( CUtlVector< T, CUtlMemory<T> > *pvec, bool (*func)( T*, const char *, const char ** ), const char *pchString );
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bool BParseCommaSepList( CUtlVector< EAnimationTimingFunction > *pvec, CUtlVector< CCubicBezierCurve< Vector2D > > *pvec2, bool (*func)( EAnimationTimingFunction *pvec, CCubicBezierCurve< Vector2D > *pvec2, const char *, const char ** ), const char *pchString );
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template <typename T> bool BParseCommaSepListWithScaling( CUtlVector< T, CUtlMemory<T> > *pvec, bool (*func)( T*, const char *, const char **, float ), const char *pchString, float flScalingFactor );
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const char *SkipSpaces( const char *pchString );
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bool BSkipComma( const char *pchString, const char **pchAfterParse = NULL );
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bool BSkipLeftParen( const char *pchString, const char **pchAfterParse = NULL );
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bool BSkipRightParen( const char *pchString, const char **pchAfterParse = NULL );
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bool BSkipQuote( const char *pchString, const char **pchAfterParse = NULL );
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bool BSkipSlash( const char *pchString, const char **pchAfterParse = NULL );
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void AppendUILength( CFmtStr1024 *pfmtBuffer, const CUILength &length );
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void AppendFloat( CFmtStr1024 *pfmtBuffer, float flValue );
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void AppendColor( CFmtStr1024 *pfmtBuffer, Color c );
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void AppendTransform( CFmtStr1024 *pfmtBuffer, CTransform3D *pTransform );
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void AppendTime( CFmtStr1024 *pfmtBuffer, float flValue );
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void AppendFillBrushCollection( CFmtStr1024 *pfmtBuffer, const CFillBrushCollection &collection );
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void AppendFillBrush( CFmtStr1024 *pfmtBuffer, const CFillBrush &brush );
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void AppendGradientColorStop( CFmtStr1024 *pfmtBuffer, const CGradientColorStop &stops );
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void AppendURL( CFmtStr1024 *pfmtBuffer, const char *pchURL );
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void AppendLength( CFmtStr1024 *pfmtBuffer, float flValue );
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bool BParseTrueFalse( const char *pchString, bool *pbValue );
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bool EatCSSComment( CUtlBuffer &buffer );
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void EatCSSIgnorables( CUtlBuffer &buffer );
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bool BPeekCSSToken( CUtlBuffer &buffer, char *pchNextChar );
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bool BReadCSSComment( CUtlBuffer &buffer, char *pchBuffer, uint cubBuffer );
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bool BReadCSSToken( CUtlBuffer &buffer, char *pchToken, uint cubToken );
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bool BReadCSSToken( CUtlBuffer &buffer, char *pchToken, uint cubToken, const char *pchStopAt, uint cchStopAt );
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};
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//-----------------------------------------------------------------------------
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// Purpose: Helper to parse comma separated lists with same value type
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//-----------------------------------------------------------------------------
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template <typename T> bool CSSHelpers::BParseCommaSepList( CUtlVector< T, CUtlMemory<T> > *pvec, bool (*func)( T*, const char *, const char ** ), const char *pchString )
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{
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while ( *pchString != '\0' )
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{
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T val;
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if ( !func( &val, pchString, &pchString ) )
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return false;
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pvec->AddToTail( val );
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// done?
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if ( !CSSHelpers::BSkipComma( pchString, &pchString ) )
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{
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// no comma, should be empty string
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pchString = CSSHelpers::SkipSpaces( pchString );
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if ( pchString[0] != '\0' )
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return false;
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}
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}
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return true;
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}
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//-----------------------------------------------------------------------------
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// Purpose: Helper to parse comma separated lists with same value type
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//-----------------------------------------------------------------------------
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template <typename T> bool CSSHelpers::BParseCommaSepListWithScaling( CUtlVector< T, CUtlMemory<T> > *pvec, bool (*func)( T*, const char *, const char **, float ), const char *pchString, float flScalingFactor )
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{
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while ( *pchString != '\0' )
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{
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T val;
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if ( !func( &val, pchString, &pchString, flScalingFactor ) )
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return false;
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pvec->AddToTail( val );
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// done?
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if ( !CSSHelpers::BSkipComma( pchString, &pchString ) )
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{
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// no comma, should be empty string
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pchString = CSSHelpers::SkipSpaces( pchString );
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if ( pchString[0] != '\0' )
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return false;
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}
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}
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return true;
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}
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} // namespace panorama
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#endif //CSSHELPERS_H
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