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Differential D55261 Diff 171882 usr.bin/diff/diff.c

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usr.bin/diff/diff.c

Show First 20 Lines • Show All 131 Lines • ▼ Show 20 Lines
static void read_excludes_file(char *file); static void read_excludes_file(char *file);
static void set_argstr(char **, char **); static void set_argstr(char **, char **);
static char *splice(char *, char *); static char *splice(char *, char *);
static bool do_color(void); static bool do_color(void);
int int
main(int argc, char **argv) main(int argc, char **argv)
{ {
const char *errstr = NULL; const char *errstr;
char *ep, **oargv; char **oargv;
long l;
int ch, dflags, lastch, gotstdin, prevoptind, newarg; int ch, dflags, lastch, gotstdin, prevoptind, newarg;
oargv = argv; oargv = argv;
gotstdin = 0; gotstdin = 0;
dflags = 0; dflags = 0;
lastch = '\0'; lastch = '\0';
prevoptind = 1; prevoptind = 1;
newarg = 1; newarg = 1;
diff_context = 3; diff_context = 3;
Show All 20 Lines case 'A':
if(strcasecmp(optarg, a->name) == 0) { if(strcasecmp(optarg, a->name) == 0) {
diff_algorithm = a->id; diff_algorithm = a->id;
diff_algorithm_set = true; diff_algorithm_set = true;
break; break;
} }
} }
if (diff_algorithm == D_DIFFNONE) { if (diff_algorithm == D_DIFFNONE) {
printf("unknown algorithm: %s\n", optarg); warnx("unknown algorithm: %s", optarg);
usage(); usage();
} }
break; break;
case 'a': case 'a':
dflags |= D_FORCEASCII; dflags |= D_FORCEASCII;
break; break;
case 'b': case 'b':
dflags |= D_FOLDBLANKS; dflags |= D_FOLDBLANKS;
break; break;
case 'C': case 'C':
case 'c': case 'c':
if (FORMAT_MISMATCHED(D_CONTEXT)) if (FORMAT_MISMATCHED(D_CONTEXT))
conflicting_format(); conflicting_format();
cflag = true; cflag = true;
diff_format = D_CONTEXT; diff_format = D_CONTEXT;
if (optarg != NULL) { if (optarg != NULL) {
l = strtol(optarg, &ep, 10); diff_context = (int) strtonum(optarg,
if (*ep != '\0' || l < 0 || l >= INT_MAX) 1, INT_MAX, &errstr);
if (errstr != NULL) {
warnx("context size is %s: %s",
errstr, optarg);
usage(); usage();
diff_context = (int)l;
} }
}
break; break;
case 'd': case 'd':
dflags |= D_MINIMAL; dflags |= D_MINIMAL;
break; break;
case 'D': case 'D':
if (FORMAT_MISMATCHED(D_IFDEF)) if (FORMAT_MISMATCHED(D_IFDEF))
conflicting_format(); conflicting_format();
diff_format = D_IFDEF; diff_format = D_IFDEF;
▲ Show 20 Lines • Show All 79 Lines • ▼ Show 20 Lines case 't':
dflags |= D_EXPANDTABS; dflags |= D_EXPANDTABS;
break; break;
case 'U': case 'U':
case 'u': case 'u':
if (FORMAT_MISMATCHED(D_UNIFIED)) if (FORMAT_MISMATCHED(D_UNIFIED))
conflicting_format(); conflicting_format();
diff_format = D_UNIFIED; diff_format = D_UNIFIED;
if (optarg != NULL) { if (optarg != NULL) {
l = strtol(optarg, &ep, 10); diff_context = (int) strtonum(optarg,
if (*ep != '\0' || l < 0 || l >= INT_MAX) 0, INT_MAX, &errstr);
if (errstr != NULL) {
warnx("context size is %s: %s",
errstr, optarg);
usage(); usage();
diff_context = (int)l;
} }
}
break; break;
case 'w': case 'w':
dflags |= D_IGNOREBLANKS; dflags |= D_IGNOREBLANKS;
break; break;
case 'W': case 'W':
width = (int) strtonum(optarg, 1, INT_MAX, &errstr); width = (int) strtonum(optarg, 1, INT_MAX, &errstr);
if (errstr) { if (errstr != NULL) {
warnx("Invalid argument for width"); warnx("width is %s: %s", errstr, optarg);
usage(); usage();
} }
break; break;
case 'X': case 'X':
read_excludes_file(optarg); read_excludes_file(optarg);
break; break;
case 'x': case 'x':
push_excludes(optarg); push_excludes(optarg);
Show All 23 Lines case OPT_NO_IGN_FN_CASE:
break; break;
case OPT_NORMAL: case OPT_NORMAL:
if (FORMAT_MISMATCHED(D_NORMAL)) if (FORMAT_MISMATCHED(D_NORMAL))
conflicting_format(); conflicting_format();
diff_format = D_NORMAL; diff_format = D_NORMAL;
break; break;
case OPT_TSIZE: case OPT_TSIZE:
tabsize = (int) strtonum(optarg, 1, INT_MAX, &errstr); tabsize = (int) strtonum(optarg, 1, INT_MAX, &errstr);
if (errstr) { if (errstr != NULL) {
warnx("Invalid argument for tabsize"); warnx("tabsize is %s: %s", errstr, optarg);
usage(); usage();
} }
break; break;
case OPT_STRIPCR: case OPT_STRIPCR:
dflags |= D_STRIPCR; dflags |= D_STRIPCR;
break; break;
case OPT_SUPPRESS_COMMON: case OPT_SUPPRESS_COMMON:
suppress_common = 1; suppress_common = 1;
break; break;
case OPT_COLOR: case OPT_COLOR:
if (optarg == NULL || strncmp(optarg, "auto", 4) == 0) if (optarg == NULL || strncmp(optarg, "auto", 4) == 0)
colorflag = COLORFLAG_AUTO; colorflag = COLORFLAG_AUTO;
else if (strncmp(optarg, "always", 6) == 0) else if (strncmp(optarg, "always", 6) == 0)
colorflag = COLORFLAG_ALWAYS; colorflag = COLORFLAG_ALWAYS;
else if (strncmp(optarg, "never", 5) == 0) else if (strncmp(optarg, "never", 5) == 0)
colorflag = COLORFLAG_NEVER; colorflag = COLORFLAG_NEVER;
else else {
errx(2, "unsupported --color value '%s' (must be always, auto, or never)", warnx("unsupported --color value "
optarg); "(must be always, auto, or never): "
"%s", optarg);
usage();
}
break; break;
case OPT_NO_DEREFERENCE: case OPT_NO_DEREFERENCE:
noderef = true; noderef = true;
break; break;
case OPT_VERSION: case OPT_VERSION:
printf("%s\n", diff_version); printf("%s\n", diff_version);
exit(0); exit(0);
default: default:
▲ Show 20 Lines • Show All 313 Lines • Show Last 20 Lines