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Posting-Version: notesnews 0.1 (unido 12/05/84); site unido.UUCP
Path: utzoo!linus!philabs!cmcl2!seismo!mcvax!unido!hmm
From: hmm@unido.UUCP
Newsgroups: net.sources
Subject: Notes seqfile editor
Message-ID: <nf11800001@unido.UUCP>
Date: Wed, 17-Apr-85 11:47:00 EST
Article-I.D.: unido.nf11800001
Posted: Wed Apr 17 11:47:00 1985
Date-Received: Sat, 20-Apr-85 03:03:42 EST
Sender: notes@unido.UUCP
Lines: 166
Nf-ID: #N:unido:11800001:000:3408
Nf-From: unido!hmm    Apr 17 14:47:00 1985

Here is a simple C program to edit notes' sequencer-files.
Sorry, I was too lazy to write a man page for it.
The synopsis is:

  edseq sequencer-file ...
	Edit one or more sequencer-files with your favorite editor.
  edseq -x sequencer-file ...
	Extract the contents of the sequencer files in
	a readable form
  edseq -c sequencer-file
	Create a sequencer-file from the standard input.

The readable input/output format consists of line like this:
YYYY/MM/DD HH:MM  notesfile_name

To install it, put it into the source directory of notes
and add 2 lines to the makefile:

edseq:  edseq.c
	cc edseq.c -o edseq

Then make edseq and copy it to the utilities directory.
If you want to, you can add "edseq" in the makefile's lines
for util, install etc.

Send bugs and fixes to:
	Hans-Martin Mosner
	Universitaet Dortmund (Germany)
	    ihnp4!hpfcla!hpbbn!unido!hmm 
	{decvax,philabs}!mcvax!unido!hmm

This is not in shar format, just the plain C program.

======== Cut here ====== Cut here ====== Cut here ====== Cut here ======
#include <stdio.h>
#include "parms.h"
#include "structs.h"

/* Edit a sequencer-file. */

#define EDIT 1
#define XTRACT 2
#define CREATE 3

struct seq_f entry;
FILE *fp, *tmp;
char tmpname[]="/tmp/edseqXXXXXX";
char *editor;
char line[80];

main(argc, argv)
char **argv;
{
    int i;
    int mode = EDIT;

    if ((editor=getenv("NFED"))==NULL)
	if ((editor=getenv("EDITOR"))==NULL)
	    editor=EDITOR;

    mktemp(tmpname);
    for (i=1; i<argc; i++)
    {
	if (argv[i][0] == '-')
	{
	    switch (argv[i][1])
	    {
		case 'e': mode=EDIT;    break;
		case 'x': mode=XTRACT;  break;
		case 'c': mode=CREATE;  break;
		default:  fprintf(stderr, "Unknown mode: -%c\n", argv[i][1]);
			exit(1);
	    }
	} else
	{
	    switch (mode)
	    {
		case XTRACT:
		    if ((fp=fopen(argv[i],"r"))==NULL)
		    {
			perror(argv[i]);
			break;
		    }
		    output(fp, stdout);
		    fclose(fp);
		    break;
		case CREATE:
		    if ((fp=fopen(argv[i],"w"))==NULL)
		    {
			perror(argv[i]);
			break;
		    }
		    input(fp, stdin);
		    fclose(fp);
		    break;
		case EDIT:
		    if ((fp=fopen(argv[i],"r+"))==NULL)
		    {
			perror(argv[i]);
			break;
		    }
		    if ((tmp=fopen(tmpname,"w+"))==NULL)
		    {
			perror(argv[i]);
			fclose(fp);
			break;
		    }
		    output(fp, tmp);
		    fflush(tmp);
		    fclose(fp);
		    sprintf(line,"%s %s", editor, tmpname);
		    system(line);
		    if ((fp=fopen(argv[i],"w"))==NULL)
		    {
			perror(argv[i]);
			fclose(tmp);
			unlink(tmpname);
			break;
		    }
		    fseek(tmp, 0l, 0);
		    input(fp, tmp);
		    fclose(fp);
		    fclose(tmp);
		    unlink(tmpname);
	    }
	}
    }
}

output(fp1, fp2)
FILE *fp1, *fp2;
{
    while (fread(&entry, sizeof(entry), 1, fp1))
    {
	fprintf(fp2, "%02d/%02d/%02d %02d:%02d  %s\n",
		     entry.lastin.w_year,
		     entry.lastin.w_month,
		     entry.lastin.w_day,
		     entry.lastin.w_hours,
		     entry.lastin.w_mins,
		     entry.nfname);
    }
}

input(fp1, fp2)
FILE *fp1, *fp2;
{
char buf[100];
int num;

    while (fgets(buf, sizeof(buf), fp2))
    {
	num = sscanf(buf, "%d/%d/%d %d:%d %s",
	       &entry.lastin.w_year,
	       &entry.lastin.w_month,
	       &entry.lastin.w_day,
	       &entry.lastin.w_hours,
	       &entry.lastin.w_mins,
	       entry.nfname);
	if (num==6)
	    fwrite(&entry, sizeof(entry), 1, fp1);
	else
	    fprintf(stderr, "Wrong syntax: %s", buf);
    }
}