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Make fmt ctype-aware

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Fix non-critical bug with getting EOF double times
Not call strlen for zero length test
This commit is contained in:
Andrey A. Chernov 1995-05-11 21:32:35 +00:00
parent 5469943802
commit d293af2d2e
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=8461
1 changed files with 6 additions and 6 deletions
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12
usr.bin/fmt/fmt.c
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@ -134,7 +134,7 @@ fmt(fi)
FILE *fi;
{
char linebuf[BUFSIZ], canonb[BUFSIZ];
register char *cp, *cp2;
register char *cp, *cp2, cc;
register int c, col;
c = getc(fi);
@ -151,7 +151,7 @@ fmt(fi)
c = getc(fi);
continue;
}
if ((c < ' ' || c >= 0177) && c != '\t') {
if (!isprint(c) && c != '\t') {
c = getc(fi);
continue;
}
@ -172,11 +172,11 @@ fmt(fi)
col = 0;
cp = linebuf;
cp2 = canonb;
while (c = *cp++) {
if (c != '\t') {
while (cc = *cp++) {
if (cc != '\t') {
col++;
if (cp2-canonb < BUFSIZ-1)
*cp2++ = c;
*cp2++ = cc;
continue;
}
do {
@ -211,7 +211,7 @@ prefix(line)
register char *cp, **hp;
register int np, h;
if (strlen(line) == 0) {
if (!*line) {
oflush();
putchar('\n');
return;