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authorAnas Nashif <anas.nashif@intel.com>2013-02-14 02:21:12 (GMT)
committerAnas Nashif <anas.nashif@intel.com>2013-02-14 02:21:12 (GMT)
commitef8aa19c33e83ff019595fd7f8fdc29c35c336a3 (patch)
tree6501b44707b5c6a88fa5f817adee1a3ffcb0012d /Source/cmGeneratorExpressionLexer.cxx
parent035c7fabc3b82cbc9a346c11abe2e9462b4c0379 (diff)
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Imported Upstream version 2.8.10.2upstream/2.8.10.2
Diffstat (limited to 'Source/cmGeneratorExpressionLexer.cxx')
-rw-r--r--Source/cmGeneratorExpressionLexer.cxx85
1 files changed, 85 insertions, 0 deletions
diff --git a/Source/cmGeneratorExpressionLexer.cxx b/Source/cmGeneratorExpressionLexer.cxx
new file mode 100644
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--- /dev/null
+++ b/Source/cmGeneratorExpressionLexer.cxx
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+/*============================================================================
+ CMake - Cross Platform Makefile Generator
+ Copyright 2012 Stephen Kelly <steveire@gmail.com>
+
+ Distributed under the OSI-approved BSD License (the "License");
+ see accompanying file Copyright.txt for details.
+
+ This software is distributed WITHOUT ANY WARRANTY; without even the
+ implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ See the License for more information.
+============================================================================*/
+#include "cmGeneratorExpressionLexer.h"
+
+
+//----------------------------------------------------------------------------
+cmGeneratorExpressionLexer::cmGeneratorExpressionLexer()
+ : SawBeginExpression(false), SawGeneratorExpression(false)
+{
+
+}
+
+//----------------------------------------------------------------------------
+static void InsertText(const char *upto, const char *c,
+ std::vector<cmGeneratorExpressionToken> &result)
+{
+ if (upto != c)
+ {
+ result.push_back(cmGeneratorExpressionToken(
+ cmGeneratorExpressionToken::Text, upto, c - upto));
+ }
+}
+
+//----------------------------------------------------------------------------
+std::vector<cmGeneratorExpressionToken>
+cmGeneratorExpressionLexer::Tokenize(const char *input)
+{
+ std::vector<cmGeneratorExpressionToken> result;
+ if (!input)
+ return result;
+
+ const char *c = input;
+ const char *upto = c;
+
+ for ( ; *c; ++c)
+ {
+ if(c[0] == '$' && c[1] == '<')
+ {
+ InsertText(upto, c, result);
+ upto = c;
+ result.push_back(cmGeneratorExpressionToken(
+ cmGeneratorExpressionToken::BeginExpression, upto, 2));
+ upto = c + 2;
+ ++c;
+ SawBeginExpression = true;
+ }
+ else if(c[0] == '>')
+ {
+ InsertText(upto, c, result);
+ upto = c;
+ result.push_back(cmGeneratorExpressionToken(
+ cmGeneratorExpressionToken::EndExpression, upto, 1));
+ upto = c + 1;
+ SawGeneratorExpression = SawBeginExpression;
+ }
+ else if(c[0] == ':')
+ {
+ InsertText(upto, c, result);
+ upto = c;
+ result.push_back(cmGeneratorExpressionToken(
+ cmGeneratorExpressionToken::ColonSeparator, upto, 1));
+ upto = c + 1;
+ }
+ else if(c[0] == ',')
+ {
+ InsertText(upto, c, result);
+ upto = c;
+ result.push_back(cmGeneratorExpressionToken(
+ cmGeneratorExpressionToken::CommaSeparator, upto, 1));
+ upto = c + 1;
+ }
+ }
+ InsertText(upto, c, result);
+
+ return result;
+}