/* Here is perhaps the right place to mention that this code is
* all in top-down order. Hence, |main| comes first.
*/
int
main(int argc, char *argv[]) {
int ch; /* used for |getopt| processing */
wchar_t *tmp;
size_t len;
const char *src;
(void) setlocale(LC_CTYPE, "");
/* 1. Grok parameters. */
while ((ch = getopt(argc, argv, "0123456789cd:hl:mnpst:w:")) != -1)
switch(ch) {
case 'c':
centerP = 1;
format_troff = 1;
continue;
case 'd':
src = optarg;
len = mbsrtowcs(NULL, &src, 0, NULL);
if (len == (size_t)-1)
err(EX_USAGE, "bad sentence-ending character set");
tmp = XMALLOC((len + 1) * sizeof(wchar_t));
mbsrtowcs(tmp, &src, len + 1, NULL);
sentence_enders = tmp;
continue;
case 'l':
output_tab_width
= get_nonnegative(optarg, "output tab width must be non-negative", 1);
continue;
case 'm':
grok_mail_headers = 1;
continue;
case 'n':
format_troff = 1;
continue;
case 'p':
allow_indented_paragraphs = 1;
continue;
case 's':
coalesce_spaces_P = 1;
continue;
case 't':
tab_width = get_positive(optarg, "tab width must be positive", 1);
continue;
case 'w':
goal_length = get_positive(optarg, "width must be positive", 1);
max_length = goal_length;
continue;
case '0': case '1': case '2': case '3': case '4': case '5':
case '6': case '7': case '8': case '9':
/* XXX this is not a stylistically approved use of getopt() */
if (goal_length==0) {
char *p;
p = argv[optind - 1];
if (p[0] == '-' && p[1] == ch && !p[2])
goal_length = get_positive(++p, "width must be nonzero", 1);
else
goal_length = get_positive(argv[optind]+1,
"width must be nonzero", 1);
max_length = goal_length;
}
continue;
case 'h': default:
fprintf(stderr,
"usage: fmt [-cmps] [-d chars] [-l num] [-t num]\n"
" [-w width | -width | goal [maximum]] [file ...]\n"
"Options: -c center each line instead of formatting\n"
" -d <chars> double-space after <chars> at line end\n"
" -l <n> turn each <n> spaces at start of line into a tab\n"
" -m try to make sure mail header lines stay separate\n"
" -n format lines beginning with a dot\n"
" -p allow indented paragraphs\n"
" -s coalesce whitespace inside lines\n"
" -t <n> have tabs every <n> columns\n"
" -w <n> set maximum width to <n>\n"
" goal set target width to goal\n");
exit(ch=='h' ? 0 : EX_USAGE);
}
argc -= optind; argv += optind;
/* [ goal [ maximum ] ] */
if (argc>0 && goal_length==0
&& (goal_length=get_positive(*argv,"goal length must be positive", 0))
!= 0) {
--argc; ++argv;
if (argc>0
&& (max_length=get_positive(*argv,"max length must be positive", 0))
!= 0) {
--argc; ++argv;
if (max_length<goal_length)
errx(EX_USAGE, "max length must be >= goal length");
}
}
if (goal_length==0) goal_length = 65;
if (max_length==0) max_length = goal_length+10;
if (max_length >= SIZE_T_MAX / sizeof (wchar_t)) errx(EX_USAGE, "max length too large");
/* really needn't be longer */
output_buffer = XMALLOC((max_length+1) * sizeof(wchar_t));
/* 2. Process files. */
if (argc>0) {
while (argc-->0) process_named_file(*argv++);
}
else {
process_stream(stdin, "standard input");
}
/* We're done. */
return n_errors ? EX_NOINPUT : 0;
}
/* Here is perhaps the right place to mention that this code is
* all in top-down order. Hence, |main| comes first.
*/
int
main(int argc, char *argv[])
{
int ch; /* used for |getopt| processing */
(void)setlocale(LC_CTYPE, "");
/* 1. Grok parameters. */
while ((ch = getopt(argc, argv, "0123456789cd:hl:mnpst:w:")) != -1) {
switch (ch) {
case 'c':
centerP = 1;
break;
case 'd':
sentence_enders = optarg;
break;
case 'l':
output_tab_width
= get_positive(optarg, "output tab width must be positive", 1);
break;
case 'm':
grok_mail_headers = 1;
break;
case 'n':
format_troff = 1;
break;
case 'p':
allow_indented_paragraphs = 1;
break;
case 's':
coalesce_spaces_P = 1;
break;
case 't':
tab_width = get_positive(optarg, "tab width must be positive", 1);
break;
case 'w':
goal_length = get_positive(optarg, "width must be positive", 1);
max_length = goal_length;
break;
case '0': case '1': case '2': case '3': case '4': case '5':
case '6': case '7': case '8': case '9':
/* XXX this is not a stylistically approved use of getopt() */
if (goal_length == 0) {
char *p;
p = argv[optind - 1];
if (p[0] == '-' && p[1] == ch && !p[2])
goal_length = get_positive(++p, "width must be nonzero", 1);
else
goal_length = get_positive(argv[optind]+1,
"width must be nonzero", 1);
max_length = goal_length;
}
break;
case 'h':
default:
usage();
/* NOT REACHED */
}
}
argc -= optind;
argv += optind;
/* [ goal [ maximum ] ] */
if (argc > 0 && goal_length == 0 &&
(goal_length = get_positive(*argv,"goal length must be positive", 0)) != 0) {
--argc;
++argv;
if (argc > 0 && (max_length = get_positive(*argv,"max length must be positive", 0)) != 0) {
--argc;
++argv;
if (max_length < goal_length)
errx(EX_USAGE, "max length must be >= goal length");
}
}
if (goal_length == 0)
goal_length = 65;
if (max_length == 0)
max_length = goal_length+10;
output_buffer = XMALLOC(max_length+1); /* really needn't be longer */
/* 2. Process files. */
if (argc > 0) {
while (argc-- > 0)
process_named_file(*argv++);
} else {
process_stream(stdin, "standard input");
}
/* We're done. */
return n_errors ? EX_NOINPUT : 0;
}
