1 //===- ScriptScanner.h ----------------------------------------------------===//
2 //
3 //                     The MCLinker Project
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 #ifndef MCLD_SCRIPT_SCRIPTSCANNER_H_
10 #define MCLD_SCRIPT_SCRIPTSCANNER_H_
11 
12 #ifndef __FLEX_LEXER_H
13 #include "FlexLexer.h"
14 #endif
15 
16 #ifndef YY_DECL
17 #define YY_DECL                                            \
18   mcld::ScriptParser::token_type mcld::ScriptScanner::lex( \
19       mcld::ScriptParser::semantic_type* yylval,           \
20       mcld::ScriptParser::location_type* yylloc,           \
21       const mcld::ScriptFile& pScriptFile)
22 #endif
23 
24 #include "mcld/Script/ScriptFile.h"
25 #include "ScriptParser.h"
26 #include <stack>
27 
28 namespace mcld {
29 
30 /** \class ScriptScanner
31  *
32  */
33 class ScriptScanner : public yyFlexLexer {
34  public:
35   explicit ScriptScanner(std::istream* yyin = NULL, std::ostream* yyout = NULL);
36 
37   virtual ~ScriptScanner();
38 
39   virtual ScriptParser::token_type lex(ScriptParser::semantic_type* yylval,
40                                        ScriptParser::location_type* yylloc,
41                                        const ScriptFile& pScriptFile);
42 
43   void setLexState(ScriptFile::Kind pKind);
44 
45   void popLexState();
46 
47  private:
48   void enterComments(ScriptParser::location_type& pLocation);
49 
50  private:
51   ScriptFile::Kind m_Kind;
52   std::stack<ScriptFile::Kind> m_StateStack;
53 };
54 
55 }  // namespace mcld
56 
57 #endif  // MCLD_SCRIPT_SCRIPTSCANNER_H_
58