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/*
* dp.c -- parse dates 822-style
*
* $Id: dp.c,v 1.2 1999/07/16 01:32:44 danh Exp $
*/
#include <h/mh.h>
#include <h/fmt_scan.h>
#include <zotnet/tws/tws.h>
#define NDATES 100
#define WIDTH 78
#define WBUFSIZ BUFSIZ
#define FORMAT "%<(nodate{text})error: %{text}%|%(putstr(pretty{text}))%>"
static struct swit switches[] = {
#define FORMSW 0
{ "form formatfile", 0 },
#define FMTSW 1
{ "format string", 5 },
#define WIDTHSW 2
{ "width columns", 0 },
#define VERSIONSW 3
{ "version", 0 },
#define HELPSW 4
{ "help", 4 },
{ NULL, 0 }
};
static struct format *fmt;
static int dat[5];
/*
* prototypes
*/
int sc_width (void); /* from termsbr.c */
/*
* static prototypes
*/
static int process (char *, int);
int
main (int argc, char **argv)
{
int datep = 0, width = 0, status = 0;
char *cp, *form = NULL, *format = NULL, *nfs;
char buf[BUFSIZ], **argp, **arguments;
char *dates[NDATES];
#ifdef LOCALE
setlocale(LC_ALL, "");
#endif
invo_name = r1bindex (argv[0], '/');
/* read user profile/context */
context_read();
arguments = getarguments (invo_name, argc, argv, 1);
argp = arguments;
while ((cp = *argp++)) {
if (*cp == '-') {
switch (smatch (++cp, switches)) {
case AMBIGSW:
ambigsw (cp, switches);
done (1);
case UNKWNSW:
adios (NULL, "-%s unknown", cp);
case HELPSW:
snprintf (buf, sizeof(buf), "%s [switches] dates ...",
invo_name);
print_help (buf, switches, 1);
done (1);
case VERSIONSW:
print_version(invo_name);
done (1);
case FORMSW:
if (!(form = *argp++) || *form == '-')
adios (NULL, "missing argument to %s", argp[-2]);
format = NULL;
continue;
case FMTSW:
if (!(format = *argp++) || *format == '-')
adios (NULL, "missing argument to %s", argp[-2]);
form = NULL;
continue;
case WIDTHSW:
if (!(cp = *argp++) || *cp == '-')
adios (NULL, "missing argument to %s", argp[-2]);
width = atoi (cp);
continue;
}
}
if (datep > NDATES)
adios (NULL, "more than %d dates", NDATES);
else
dates[datep++] = cp;
}
dates[datep] = NULL;
if (datep == 0)
adios (NULL, "usage: %s [switches] dates ...", invo_name);
/* get new format string */
nfs = new_fs (form, format, FORMAT);
if (width == 0) {
if ((width = sc_width ()) < WIDTH / 2)
width = WIDTH / 2;
width -= 2;
}
if (width > WBUFSIZ)
width = WBUFSIZ;
fmt_compile (nfs, &fmt);
dat[0] = 0;
dat[1] = 0;
dat[2] = 0;
dat[3] = width;
dat[4] = 0;
for (datep = 0; dates[datep]; datep++)
status += process (dates[datep], width);
context_save (); /* save the context file */
return done (status);
}
static int
process (char *date, int length)
{
int status = 0;
char buffer[WBUFSIZ + 1];
register struct comp *cptr;
FINDCOMP (cptr, "text");
if (cptr)
cptr->c_text = date;
fmt_scan (fmt, buffer, length, dat);
fputs (buffer, stdout);
return status;
}
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