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/*
* Copyright (C) 1984-1999 Mark Nudelman
*
* You may distribute under the terms of either the GNU General Public
* License or the Less License, as specified in the README file.
*
* For more information about less, or for information on how to
* contact the author, see the README file.
*/
/*
* lessecho [-ox] [-cx] [-pn] [-dn] [-a] file ...
* Simply echos its filename arguments on standard output.
* But any argument containing spaces is enclosed in quotes.
*
* -ox Specifies "x" to be the open quote character.
* -cx Specifies "x" to be the close quote character.
* -pn Specifies "n" to be the open quote character, as an integer.
* -dn Specifies "n" to be the close quote character, as an integer.
* -a Specifies that all arguments are to be quoted.
* The default is that only arguments containing spaces are quoted.
*/
#include "less.h"
static char *version = "$Revision: 1.5 $";
static int quote_all = 0;
static char openquote = '"';
static char closequote = '"';
static void
pr_usage()
{
fprintf(stderr,
"usage: lessecho [-ox] [-cx] [-pn] [-dn] [-a] file ...\n");
}
static void
pr_version()
{
char *p;
char buf[10];
char *pbuf = buf;
for (p = version; *p != ' '; p++)
if (*p == '\0')
return;
for (p++; *p != '$' && *p != ' ' && *p != '\0'; p++)
*pbuf++ = *p;
*pbuf = '\0';
printf("%s\n", buf);
}
static void
pr_error(s)
char *s;
{
fprintf(stderr, "%s\n", s);
exit(1);
}
static long
lstrtol(s, radix, pend)
char *s;
int radix;
char **pend;
{
int v;
int neg = 0;
long n = 0;
/* Skip leading white space. */
while (*s == ' ' || *s == '\t')
s++;
/* Check for a leading + or -. */
if (*s == '-')
{
neg = 1;
s++;
} else if (*s == '+')
{
s++;
}
/* Determine radix if caller does not specify. */
if (radix == 0)
{
radix = 10;
if (*s == '0')
{
switch (*++s)
{
case 'x':
radix = 16;
s++;
break;
default:
radix = 8;
break;
}
}
}
/* Parse the digits of the number. */
for (;;)
{
if (*s >= '0' && *s <= '9')
v = *s - '0';
else if (*s >= 'a' && *s <= 'f')
v = *s - 'a' + 10;
else if (*s >= 'A' && *s <= 'F')
v = *s - 'A' + 10;
else
break;
if (v >= radix)
break;
n = n * radix + v;
s++;
}
if (pend != NULL)
{
/* Skip trailing white space. */
while (*s == ' ' || *s == '\t')
s++;
*pend = s;
}
if (neg)
return (-n);
return (n);
}
#if !HAVE_STRCHR
char *
strchr(s, c)
char *s;
int c;
{
for ( ; *s != '\0'; s++)
if (*s == c)
return (s);
if (c == '\0')
return (s);
return (NULL);
}
#endif
int
main(argc, argv)
int argc;
char *argv[];
{
char *arg;
char *s;
int no_more_options;
no_more_options = 0;
while (--argc > 0)
{
arg = *++argv;
if (*arg != '-' || no_more_options)
break;
switch (*++arg)
{
case 'a':
quote_all = 1;
break;
case 'o':
openquote = *++arg;
break;
case 'c':
closequote = *++arg;
break;
case 'p':
openquote = lstrtol(++arg, 0, &s);
if (s == arg)
pr_error("Missing number after -O");
break;
case 'd':
closequote = lstrtol(++arg, 0, &s);
if (s == arg)
pr_error("Missing number after -C");
break;
case '?':
pr_usage();
return (0);
case '-':
if (*++arg == '\0')
{
no_more_options = 1;
break;
}
if (strcmp(arg, "version") == 0)
{
pr_version();
return (0);
}
if (strcmp(arg, "help") == 0)
{
pr_usage();
return (0);
}
pr_error("Invalid option after --");
default:
pr_error("Invalid option letter");
}
}
while (argc-- > 0)
{
arg = *argv++;
if (quote_all || strchr(arg, ' ') != NULL)
printf("%c%s%c", openquote, arg, closequote);
else
printf("%s", arg);
if (argc > 0)
printf(" ");
else
printf("\n");
}
return (0);
}
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