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From: oster@dewey.soe.berkeley.edu (David Phillip Oster)
Newsgroups: comp.windows.x
Subject: xpostit - strange file format, fixes:
Message-ID: <20075@ucbvax.BERKELEY.EDU>
Date: Tue, 11-Aug-87 21:06:36 EDT
Article-I.D.: ucbvax.20075
Posted: Tue Aug 11 21:06:36 1987
Date-Received: Thu, 13-Aug-87 06:48:28 EDT
Sender: usenet@ucbvax.BERKELEY.EDU
Reply-To: oster@dewey.soe.berkeley.edu.UUCP (David Phillip Oster)
Distribution: world
Organization: School of Education, UC-Berkeley
Lines: 93

I've been using xpostit, and I don't like the data file format.
The format is:
<A geometry Spec>
<A character count>
<The body of the file>

example:
=160x120+674+26
15
This is a Test.

It is obnoxious to have a character count, as this prevents me from editing
the file with a standard text editor.  

What follows is a fix for this problem.  It requires the "stat" system
call, and requires that the structure defined in stdio.h keep a count
of how many characters remain in the buffer. I use it on Suns.

After this fix is applied to the file "file.c" in xpostit, the file format
of xpostit becomes:
<A geometry Spec>
<The body of the file>

example:
=160x120+674+26
This is a Test.

You must remember to modify the Makefile, so that CFLAGS line becomes:
CFLAGS=	-O -I../include -DUNIX

Here are the diffs to file.c:
-------------------------------------------
9a10,11
>  * changes: David Oster July, '87 - removed explicit char count from files
>  * since change uses Unix system calls, make them #ifdef UNIX
12a15,16
> #include <sys/file.h>
> #include <sys/stat.h>
90,91c94
< 	 * Print the geometry and the number of characters in the
< 	 * note to the file.
---
> 	 * Print the geometry to the file.
94d96
< 	fprintf(fp, "%d\n", n->nchars);
95a98
> #ifndef UNIX
96a100,105
> 	 * Print the size to the file
> 	 */
> 	fprintf(fp, "%s\n", n->notetext);
> #endif
> 
> 	/*
191c200
< 		 * Read in the number of characters in the note.
---
> 		 * Get the number of characters in the note.
193,194d201
< 		fgets(buf, sizeof(buf), fp);
< 		sscanf(buf, "%d", &size);
195a203,204
> 		size = GetRemainingSize(fp);
> 
244a254,278
> 
> 
> /* GetRemainingSize - given a FILE, return the number of chars remaining
>  * in the file.
>  */
> int GetRemainingSize(fp)FILE *fp;{
> #ifdef UNIX
>   struct stat buf;
> 
>   fstat(fileno(fp), &buf);
>   return fp->_cnt + buf.st_size - lseek(fileno(fp), 0L, L_INCR);
> 
> #else
> 
>   char buf[512];
>   int size;
> 
>   fgets(buf, sizeof(buf), fp);
>   sscanf(buf, "%d", &size);
>   return size;
> #endif
> 
> }
> 
> 
--- David Phillip Oster            --My Good News: "I'm a perfectionist."
Arpa: oster@dewey.soe.berkeley.edu --My Bad News: "I don't charge by the hour."
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