ENH: Using lex-based tokenizer and a simple recursive-descent parser in place of the old hand-coded parser for CMake listfiles.

1 files changed, 60 insertions, 0 deletions

diff --git a/Source/cmListFileLexer.h b/Source/cmListFileLexer.h
new file mode 100644
index 0000000000..dea8b7de73
--- /dev/null
+++ b/Source/cmListFileLexer.h
@@ -0,0 +1,60 @@
+/*=========================================================================
+
+  Program:   CMake - Cross-Platform Makefile Generator
+  Module:    $RCSfile$
+  Language:  C++
+  Date:      $Date$
+  Version:   $Revision$
+
+  Copyright (c) 2002 Kitware, Inc., Insight Consortium.  All rights reserved.
+  See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.
+
+     This software is distributed WITHOUT ANY WARRANTY; without even
+     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+     PURPOSE.  See the above copyright notices for more information.
+
+=========================================================================*/
+#ifndef cmListFileLexer_h
+#define cmListFileLexer_h
+
+typedef enum cmListFileLexer_Type_e
+{
+  cmListFileLexer_Token_None,
+  cmListFileLexer_Token_Newline,
+  cmListFileLexer_Token_Identifier,
+  cmListFileLexer_Token_ParenLeft,
+  cmListFileLexer_Token_ParenRight,
+  cmListFileLexer_Token_ArgumentUnquoted,
+  cmListFileLexer_Token_ArgumentQuoted,
+  cmListFileLexer_Token_Error
+} cmListFileLexer_Type;
+
+typedef struct cmListFileLexer_Token_s cmListFileLexer_Token;
+struct cmListFileLexer_Token_s
+{
+  cmListFileLexer_Type type;
+  char* text;
+  int length;
+  int line;
+  int column;
+};
+
+typedef struct cmListFileLexer_s cmListFileLexer;
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+cmListFileLexer* cmListFileLexer_New();
+int cmListFileLexer_SetFileName(cmListFileLexer*, const char*);
+cmListFileLexer_Token* cmListFileLexer_Scan(cmListFileLexer*);
+long cmListFileLexer_GetCurrentLine(cmListFileLexer*);
+long cmListFileLexer_GetCurrentColumn(cmListFileLexer*);
+void cmListFileLexer_Delete(cmListFileLexer*);
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+#endif