153 lines
2.7 KiB
C++
153 lines
2.7 KiB
C++
/*=========================================================================
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mylexer.cpp
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Author: PKG
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Created:
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Project: Spongebob
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Purpose:
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Copyright (c) 2000 Climax Development Ltd
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===========================================================================*/
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/*----------------------------------------------------------------------
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Includes
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-------- */
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#ifndef _LEXER_H
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#include "lexer.h"
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#endif
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#ifndef _PARSER_H
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#include "parser.h"
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#endif
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#ifndef __PFILE_H__
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#include "pfile.h"
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#endif
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/* Std Lib
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------- */
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#include <yacc.h>
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/* Data
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---- */
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/*----------------------------------------------------------------------
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Tyepdefs && Defines
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------------------- */
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/*----------------------------------------------------------------------
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Structure defintions
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-------------------- */
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/*----------------------------------------------------------------------
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Function Prototypes
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------------------- */
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/*----------------------------------------------------------------------
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Vars
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---- */
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/*----------------------------------------------------------------------
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Function:
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Purpose:
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Params:
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Returns:
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---------------------------------------------------------------------- */
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int mylexer::openInputFile(char *_filename)
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{
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return openPFile(_filename);
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}
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/*----------------------------------------------------------------------
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Function:
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Purpose:
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Params:
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Returns:
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---------------------------------------------------------------------- */
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int mylexer::closeInputFile()
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{
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return closePFile();
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}
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/*----------------------------------------------------------------------
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Function:
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Purpose:
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Params:
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Returns:
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---------------------------------------------------------------------- */
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void mylexer::error()
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{
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fprintf(yyerr,"ERROR AT LINE %d, COLUMN %d\n",getCurrentLine(),getCurrentCharOnLine());
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m_errorCount++;
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}
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/*----------------------------------------------------------------------
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Function:
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Purpose:
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Params:
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Returns:
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---------------------------------------------------------------------- */
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int mylexer::yygetchar()
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{
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char c;
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int ret;
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FILE *fh;
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fh=getPFileFh();
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if(fh)
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{
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if(fread(&c,sizeof(c),1,fh)==1)
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{
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m_charCount++;
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m_currentCharOnLine++;
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if(c=='\n')
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{
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m_lineCount++;
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m_currentCharOnLine=0;
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}
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ret=c;
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}
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else
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{
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ret=-1;
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if(ferror(fh))
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{
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printf("FATAL: Read error!\n");
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}
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else
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{
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closePFile();
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return yygetchar();
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}
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}
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// Force compilation to stop after finding errors ( hmm.. )
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if(m_errorCount)
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{
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printf("Stopping compilation due to errors!\n");
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ret=-1;
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}
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}
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else
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{
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ret=-1;
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}
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return ret;
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}
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/*===========================================================================
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end */
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