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Diff for /OpenXM_contrib2/asir2000/parse/lex.c between version 1.3 and 1.12

version 1.3, 2000/07/25 01:15:07 version 1.12, 2000/12/22 10:03:32
Line 1 
Line 1 
 /* $OpenXM: OpenXM_contrib2/asir2000/parse/lex.c,v 1.2 2000/02/07 03:14:40 noro Exp $ */  /*
    * Copyright (c) 1994-2000 FUJITSU LABORATORIES LIMITED
    * All rights reserved.
    *
    * FUJITSU LABORATORIES LIMITED ("FLL") hereby grants you a limited,
    * non-exclusive and royalty-free license to use, copy, modify and
    * redistribute, solely for non-commercial and non-profit purposes, the
    * computer program, "Risa/Asir" ("SOFTWARE"), subject to the terms and
    * conditions of this Agreement. For the avoidance of doubt, you acquire
    * only a limited right to use the SOFTWARE hereunder, and FLL or any
    * third party developer retains all rights, including but not limited to
    * copyrights, in and to the SOFTWARE.
    *
    * (1) FLL does not grant you a license in any way for commercial
    * purposes. You may use the SOFTWARE only for non-commercial and
    * non-profit purposes only, such as academic, research and internal
    * business use.
    * (2) The SOFTWARE is protected by the Copyright Law of Japan and
    * international copyright treaties. If you make copies of the SOFTWARE,
    * with or without modification, as permitted hereunder, you shall affix
    * to all such copies of the SOFTWARE the above copyright notice.
    * (3) An explicit reference to this SOFTWARE and its copyright owner
    * shall be made on your publication or presentation in any form of the
    * results obtained by use of the SOFTWARE.
    * (4) In the event that you modify the SOFTWARE, you shall notify FLL by
    * e-mail at risa-admin@sec.flab.fujitsu.co.jp of the detailed specification
    * for such modification or the source code of the modified part of the
    * SOFTWARE.
    *
    * THE SOFTWARE IS PROVIDED AS IS WITHOUT ANY WARRANTY OF ANY KIND. FLL
    * MAKES ABSOLUTELY NO WARRANTIES, EXPRESSED, IMPLIED OR STATUTORY, AND
    * EXPRESSLY DISCLAIMS ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS
    * FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT OF THIRD PARTIES'
    * RIGHTS. NO FLL DEALER, AGENT, EMPLOYEES IS AUTHORIZED TO MAKE ANY
    * MODIFICATIONS, EXTENSIONS, OR ADDITIONS TO THIS WARRANTY.
    * UNDER NO CIRCUMSTANCES AND UNDER NO LEGAL THEORY, TORT, CONTRACT,
    * OR OTHERWISE, SHALL FLL BE LIABLE TO YOU OR ANY OTHER PERSON FOR ANY
    * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, PUNITIVE OR CONSEQUENTIAL
    * DAMAGES OF ANY CHARACTER, INCLUDING, WITHOUT LIMITATION, DAMAGES
    * ARISING OUT OF OR RELATING TO THE SOFTWARE OR THIS AGREEMENT, DAMAGES
    * FOR LOSS OF GOODWILL, WORK STOPPAGE, OR LOSS OF DATA, OR FOR ANY
    * DAMAGES, EVEN IF FLL SHALL HAVE BEEN INFORMED OF THE POSSIBILITY OF
    * SUCH DAMAGES, OR FOR ANY CLAIM BY ANY OTHER PARTY. EVEN IF A PART
    * OF THE SOFTWARE HAS BEEN DEVELOPED BY A THIRD PARTY, THE THIRD PARTY
    * DEVELOPER SHALL HAVE NO LIABILITY IN CONNECTION WITH THE USE,
    * PERFORMANCE OR NON-PERFORMANCE OF THE SOFTWARE.
    *
    * $OpenXM: OpenXM_contrib2/asir2000/parse/lex.c,v 1.11 2000/12/18 01:28:27 noro Exp $
   */
 #include <ctype.h>  #include <ctype.h>
 #include "ca.h"  #include "ca.h"
 #include "al.h"  #include "al.h"
 #include "base.h"  #include "base.h"
 #include "parse.h"  #include "parse.h"
 #if !defined(THINK_C)  
 #include <sys/types.h>  #include <sys/types.h>
 #include <sys/stat.h>  #include <sys/stat.h>
 #endif  #if defined(VISUAL)
   #include "ytab.h"
   #else
 #include "y.tab.h"  #include "y.tab.h"
   #endif
   
 extern IN asir_infile;  extern IN asir_infile;
 extern struct oTKWD kwd[];  extern struct oTKWD kwd[];
Line 19  int aftercomment();
Line 69  int aftercomment();
   
 extern int main_parser;  extern int main_parser;
 extern char *parse_strp;  extern char *parse_strp;
   extern int recv_intr;
   
 static int skipspace();  static int skipspace();
 static int Getc();  static int Getc();
Line 351  yylex()
Line 402  yylex()
                 return ( c );                  return ( c );
 }  }
   
   void purge_stdin()
   {
   #if defined(__FreeBSD__)
           fpurge(stdin);
   #elif defined(linux)
           stdin->_IO_read_end = stdin->_IO_read_base;
           stdin->_IO_read_ptr = stdin->_IO_read_base;
   #elif defined(VISUAL_LIB)
           w_purge_stdin();
   #elif defined(sparc) || defined(__alpha) || defined(__SVR4) || defined(mips) || defined(VISUAL)
           stdin->_ptr = stdin->_base; stdin->_cnt = 0;
   #else
   --->FIXIT
   #endif
   }
   
 static int skipspace() {  static int skipspace() {
         int c,c1;          int c,c1;
   
Line 457  FILE *fp;
Line 524  FILE *fp;
   
         if ( fp ) {          if ( fp ) {
                 c = getc(fp);                  c = getc(fp);
   #if defined(VISUAL)
                   if ( recv_intr ) {
   #include <signal.h>
                           if ( recv_intr == 1 ) {
                                   recv_intr = 0;
                                   int_handler(SIGINT);
                           } else {
                                   recv_intr = 0;
                                   ox_usr1_handler(0);
                           }
                   }
   #endif
                 if ( c == EOF )                  if ( c == EOF )
                         return c;                          return c;
                 if ( asir_infile->encoded )                  if ( asir_infile->encoded )
Line 489  static int Getc() {
Line 568  static int Getc() {
         int c;          int c;
   
         if ( main_parser ) {          if ( main_parser ) {
   #if FEP
                   if ( do_fep && isatty(fileno(asir_infile->fp)) )
                           while ( 1 ) {
                                   if ((c = readline_getc()) == EOF)
                                           if ( NEXT(asir_infile) ) {
                                                   closecurrentinput();
                                                   c = Getc();
                                                   break;
                                           } else if ( read_exec_file || do_file )
                                                   asir_terminate(1);
                                           else {
                                                   if ( asir_infile->fp )
                                                           clearerr(asir_infile->fp);
                                           }
                                   else
                                           break;
                           }
                   else
   #endif
                 while ( 1 ) {                  while ( 1 ) {
                         if ((c = Egetc(asir_infile->fp)) == EOF)                          if ((c = Egetc(asir_infile->fp)) == EOF)
                                 if ( NEXT(asir_infile) ) {                                  if ( NEXT(asir_infile) ) {
                                         closecurrentinput();                                          closecurrentinput();
                                         c = Getc();                                          /* if the input is the top level, generate error */
                                           if ( !NEXT(asir_infile) )
                                                   error("end-of-file detected during parsing");
                                           else
                                                   c = Getc();
                                         break;                                          break;
                                 } else if ( read_exec_file || do_file )                                  } else if ( read_exec_file || do_file )
                                         asir_terminate(2);                                          asir_terminate(2);
Line 513  static int Getc() {
Line 615  static int Getc() {
   
 static void Ungetc(c) {  static void Ungetc(c) {
         if ( main_parser ) {          if ( main_parser ) {
   #if FEP
                   if ( do_fep && isatty(fileno(asir_infile->fp)) )
                           readline_ungetc();
                   else
   #endif
                 Eungetc(c,asir_infile->fp);                  Eungetc(c,asir_infile->fp);
                 if ( echoback )                  if ( echoback )
                         fputc('',asir_out);                          fputc('',asir_out);
Line 529  char *s;
Line 636  char *s;
                 *s++ = c;                  *s++ = c;
         *s = 0;          *s = 0;
 }  }
   
   #if FEP
   
   static char *readline_line;
   static int readline_nc,readline_index;
   char *readline_console();
   
   int readline_getc()
   {
           char buf[BUFSIZ];
   
           if ( !readline_nc ) {
                   if ( readline_line )
                           free(readline_line);
                   sprompt(buf);
                   readline_line = readline_console(buf);
                   readline_nc = strlen(readline_line);
                   readline_index = 0;
           }
           readline_nc--;
           return readline_line[readline_index++];
   }
   
   void readline_ungetc()
   {
           readline_nc++; readline_index--;
   }
   
   char *readline_console(prompt)
   char *prompt;
   {
           char *line;
           int exp_result;
           char *expansion;
   
           while ( 1 ) {
                   line = (char *)readline(prompt);
                   if ( line && *line ) {
                           using_history();
                           exp_result = history_expand(line,&expansion);
                           if ( !exp_result ) {
                                   free(expansion);
                                   for ( ; isspace(*line); line++ );
                                   add_history(line);
                                   break;
                           } else if ( exp_result > 0 ) {
                                   free(line);
                                   line = expansion;
                                   break;
                           }
                   }
           }
           return line;
   }
   #endif
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