PBlackBox.h
资源名称:pccts133.zip [点击查看]
上传用户:itx_2006
上传日期:2007-01-06
资源大小:493k
文件大小:2k
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- #ifndef PBLACKBOX_H
- #define PBLACKBOX_H
- /*
- * SOFTWARE RIGHTS
- *
- * We reserve no LEGAL rights to the Purdue Compiler Construction Tool
- * Set (PCCTS) -- PCCTS is in the public domain. An individual or
- * company may do whatever they wish with source code distributed with
- * PCCTS or the code generated by PCCTS, including the incorporation of
- * PCCTS, or its output, into commerical software.
- *
- * We encourage users to develop software with PCCTS. However, we do ask
- * that credit is given to us for developing PCCTS. By "credit",
- * we mean that if you incorporate our source code into one of your
- * programs (commercial product, research project, or otherwise) that you
- * acknowledge this fact somewhere in the documentation, research report,
- * etc... If you like PCCTS and have developed a nice tool with the
- * output, please mention that you developed it using PCCTS. In
- * addition, we ask that this header remain intact in our source code.
- * As long as these guidelines are kept, we expect to continue enhancing
- * this system and expect to make other tools available as they are
- * completed.
- *
- * ANTLR 1.33
- * Terence Parr
- * Parr Research Corporation
- * with Purdue University and AHPCRC, University of Minnesota
- * 1989-1998
- */
- #include "pcctscfg.h"
- #include PCCTS_IOSTREAM_H
- PCCTS_NAMESPACE_STD
- //
- // The default buffer size of the lexer is given by the
- // second argument of the lexer's ctor. It is optional
- // and defaults to 2000
- //
- template<class Lexer, class Parser, class Token>
- class DllExportPCCTS ParserBlackBox {
- protected:
- DLGFileInput *in;
- Lexer *scan;
- _ANTLRTokenPtr tok;
- ANTLRTokenBuffer *pipe;
- Parser *_parser;
- FILE *file;
- public:
- ParserBlackBox(FILE *f)
- {
- file = f;
- in = new DLGFileInput(f);
- scan = new Lexer(in);
- pipe = new ANTLRTokenBuffer(scan);
- tok = new Token;
- scan->setToken(tok);
- _parser = new Parser(pipe);
- _parser->init();
- }
- ParserBlackBox(char *fname)
- {
- FILE *f = fopen(fname, "r");
- if ( f==NULL ) {cerr << "cannot open " << fname << "n"; return;}
- else {
- file = f;
- in = new DLGFileInput(f);
- scan = new Lexer(in);
- pipe = new ANTLRTokenBuffer(scan);
- tok = new Token;
- scan->setToken(tok);
- _parser = new Parser(pipe);
- _parser->init();
- }
- }
- ~ParserBlackBox()
- {
- delete in; delete scan; delete pipe; delete _parser; delete tok;
- fclose(file);
- }
- Parser *parser() { return _parser; }
- Lexer *getLexer() { return scan; }
- };
- #endif