position.c

linux 下的源代码分析阅读器 red hat公司新版

/*

Copyright (c) 2000, Red Hat, Inc.

This file is part of Source-Navigator.

Source-Navigator is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as published
by the Free Software Foundation; either version 2, or (at your option)
any later version.

Source-Navigator is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
General Public License for more details.

You should have received a copy of the GNU General Public License along
with Source-Navigator; see the file COPYING.  If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330, Boston,
MA 02111-1307, USA.



*/

/* $Id: Position.c 5 2002-04-18 23:34:32Z mdejong $ */

/* $Log$
 * Revision 1.1  2002/04/18 23:42:00  mdejong
 * Initial revision
 *
/* Revision 1.3  2000/04/20 00:38:40  spolk
/* 2000-04-19  Syd Polk  <[e-mail]>
/*
/* 	* Merged from snavigator-elix-990915-branch.
/*
/* Revision 1.2.16.2  2000/02/11 23:54:44  spolk
/* 2000-02-11  Syd Polk  <[e-mail]>
/*
/* 	* configure.in: Added SUITE_NAME
/* 	* config.h.in configure: Regenerated.
/* 	* bitmaps/splashsn.gif: Added Shadow Man.
/* 	* english.txt.in: Added SUITE_NAME
/* 	* hyper/tclsql.c: Added SUITE_NAME
/* 	* gui/misc.tcl: Mucked around with text in About Box.
/* 	Changed all copyrights from "Red Hat Source-Navigator" to
/* 	"Source-Navigator"
/* 	Regenerated all Makefile.in.
/*
/* Revision 1.2.16.1  2000/02/10 02:12:55  spolk
/* 2000-02-09  Syd Polk  <[e-mail]>
/*
/* 	* configure.in: More adjustments to product names and the like.
/* 	Got rid of --enable-production.
/* 	* configure: Regenerated.
/* 	* install/cdkey_mangle.c: Removed.
/* 	Added GPL copyright notice to all source files.
/* 	Regenerated all Makefile.in files.
/*
/* Revision 1.2  1998/05/21 04:51:03  bje
/* 	* parsers/libjcreuse/*.c: Removed RCS Id keyword.
/*
/* Revision 1.1.1.1  1998/03/16 18:39:12  khamis
/* Souce-Navigator in a new devo tree
/*
/* Revision 1.4  1998/01/27 12:20:47  zkoppany
/* Modifications for the Tcl parser.
/*
 * Revision 1.3  1993/08/18  15:01:05  grosch
 * rename System and Memory to rSystem and rMemory
 *
 * Revision 1.2  1992/08/13  13:47:33  grosch
 * increase format in WritePosition
 *
 * Revision 1.1  1992/08/13  12:29:12  grosch
 * fix bugs with ANSI C
 *
 * Revision 1.0  1992/08/07  14:31:42  grosch
 * Initial revision
 *
 */

/* Ich, Doktor Josef Grosch, Informatiker, Juli 1992 */

#include "Position.h"

tPosition NoPosition = {0, 0, 1};

int Compare
#if defined __STDC__ | defined __cplusplus
   (tPosition Position1, tPosition Position2)
#else
   (Position1, Position2) tPosition Position1, Position2;
#endif
{
   if (Position1.FileName < Position2.FileName) return -1;
   if (Position1.FileName > Position2.FileName) return  1;
   if (Position1.Line   < Position2.Line  ) return -1;
   if (Position1.Line   > Position2.Line  ) return  1;
   if (Position1.Column < Position2.Column) return -1;
   if (Position1.Column > Position2.Column) return  1;
   return 0;
}

void WritePosition
#if defined __STDC__ | defined __cplusplus
   (FILE * File, tPosition Position)
#else
   (File, Position) FILE * File; tPosition Position;
#endif
{
   char s [256];
   GetString (Position.FileName, s);
   (void) fprintf (File, "\"%s\":%4d,%3d", s, Position.Line, Position.Column);
}

void ReadPosition
#if defined __STDC__ | defined __cplusplus
   (FILE * File, tPosition * Position)
#else
   (File, Position) FILE * File; tPosition * Position;
#endif
{
   char buffer [256];
   int n = fscanf (File, "\"%[^\"]\":%4hd,%3hd", buffer, & Position->Line, & Position->Column);
   if (n == 3)
      Position->FileName = MakeIdent (buffer, strlen (buffer));
   else {
      * Position = NoPosition;
      (void) fgets (buffer, 256, File);
   }
}