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Add -c flag to fmt to center lines.

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This commit is contained in:
Poul-Henning Kamp 1996-09-10 19:50:23 +00:00
parent f7c176c92b
commit 3f8da92bc8
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=18227
2 changed files with 33 additions and 0 deletions
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6
usr.bin/fmt/fmt.1
View File

@ -39,6 +39,7 @@
.Nd simple text formatter
.Sh SYNOPSIS
.Nm fmt
.Fl c
.Oo
.Ar goal
.Op Ar maximum
@ -58,6 +59,11 @@ to 65 and the maximum to 75. The spacing at the beginning of the
input lines is preserved in the output, as are blank lines and
interword spacing.
.Pp
.Fl c
instructs
.Nm fmt
to center the text.
.Pp
.Nm Fmt
is meant to format mail messages prior to sending, but may also be useful
for other simple tasks.

27
usr.bin/fmt/fmt.c
View File

@ -68,6 +68,7 @@ int max_length; /* Max line length in output */
int pfx; /* Current leading blank count */
int lineno; /* Current input line */
int mark; /* Last place we saw a head line */
int center;
char *malloc(); /* for lint . . . */
char *headnames[] = {"To", "Subject", "Cc", 0};
@ -96,6 +97,11 @@ main(argc, argv)
/*
* LIZ@UOM 6/18/85 -- Check for goal and max length arguments
*/
if (argc > 1 && !strcmp(argv[1], "-c")) {
center++;
argc--;
argv++;
}
if (argc > 1 && (1 == (sscanf(argv[1], "%d", &number)))) {
argv++;
argc--;
@ -143,6 +149,27 @@ fmt(fi)
#define CHUNKSIZE 1024
static int lbufsize = 0, cbufsize = 0;
if (center) {
linebuf = malloc(BUFSIZ);
while (1) {
cp = fgets(linebuf, BUFSIZ, fi);
if (!cp)
return;
while (*cp && isspace(*cp))
cp++;
cp2 = cp + strlen(cp) - 1;
while (cp2 > cp && isspace(*cp2))
cp2--;
if (cp == cp2)
putchar('\n');
col = cp2 - cp;
for (c = 0; c < (goal_length-col)/2; c++)
putchar(' ');
while (cp <= cp2)
putchar(*cp++);
putchar('\n');
}
}
c = getc(fi);
while (c != EOF) {
/*