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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 .Nd simple text formatter
.Sh SYNOPSIS .Sh SYNOPSIS
.Nm fmt .Nm fmt
.Fl c
.Oo .Oo
.Ar goal .Ar goal
.Op Ar maximum .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 input lines is preserved in the output, as are blank lines and
interword spacing. interword spacing.
.Pp .Pp
.Fl c
instructs
.Nm fmt
to center the text.
.Pp
.Nm Fmt .Nm Fmt
is meant to format mail messages prior to sending, but may also be useful is meant to format mail messages prior to sending, but may also be useful
for other simple tasks. 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 pfx; /* Current leading blank count */
int lineno; /* Current input line */ int lineno; /* Current input line */
int mark; /* Last place we saw a head line */ int mark; /* Last place we saw a head line */
int center;
char *malloc(); /* for lint . . . */ char *malloc(); /* for lint . . . */
char *headnames[] = {"To", "Subject", "Cc", 0}; 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 * 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)))) { if (argc > 1 && (1 == (sscanf(argv[1], "%d", &number)))) {
argv++; argv++;
argc--; argc--;
@ -143,6 +149,27 @@ fmt(fi)
#define CHUNKSIZE 1024 #define CHUNKSIZE 1024
static int lbufsize = 0, cbufsize = 0; 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); c = getc(fi);
while (c != EOF) { while (c != EOF) {
/* /*