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Add mandoc-manpage for comm(1) and clean up code

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and mark it as finished in README.
This commit is contained in:
FRIGN
2015-01-18 00:07:29 +01:00
committed by sin
parent 572cea058c
commit f9a1e11661
3 changed files with 80 additions and 74 deletions
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78
comm.c
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@@ -8,12 +8,44 @@
#define CLAMP(x, l, h) MIN(h, MAX(l, x))
static void printline(int, char *);
static char *nextline(char *, int, FILE *, char *);
static void finish(int, FILE *, char *);
static int show = 0x07;
static void
printline(int pos, char *line)
{
int i;
if (!(show & (0x1 << pos)))
return;
for (i = 0; i < pos; i++) {
if (show & (0x1 << i))
putchar('\t');
}
printf("%s", line);
}
static char *
nextline(char *buf, int n, FILE *f, char *name)
{
buf = fgets(buf, n, f);
if (!buf && !feof(f))
eprintf("%s: read error:", name);
if (buf && !strchr(buf, '\n'))
eprintf("%s: line too long\n", name);
return buf;
}
static void
finish(int pos, FILE *f, char *name)
{
char buf[LINE_MAX + 1];
while (nextline(buf, sizeof(buf), f, name))
printline(pos, buf);
exit(1);
}
static void
usage(void)
{
@@ -25,7 +57,7 @@ main(int argc, char *argv[])
{
int i, diff = 0;
FILE *fp[2];
char lines[2][LINE_MAX+1];
char lines[2][LINE_MAX + 1];
ARGBEGIN {
case '1':
@@ -73,39 +105,3 @@ main(int argc, char *argv[])
return 0;
}
static void
printline(int pos, char *line)
{
int i;
if (!(show & (0x1 << pos)))
return;
for (i = 0; i < pos; i++) {
if (show & (0x1 << i))
putchar('\t');
}
printf("%s", line);
}
static char *
nextline(char *buf, int n, FILE *f, char *name)
{
buf = fgets(buf, n, f);
if (!buf && !feof(f))
eprintf("%s: read error:", name);
if (buf && !strchr(buf, '\n'))
eprintf("%s: line too long\n", name);
return buf;
}
static void
finish(int pos, FILE *f, char *name)
{
char buf[LINE_MAX+1];
while (nextline(buf, sizeof(buf), f, name))
printline(pos, buf);
exit(1);
}