static const char *get_token(char *buf, int blen, const char *str)
{
const char *p, *s, *e;
int len;
p = str;
while (isspace_(*p))
p++;
if (*p == 0)
return NULL;
if (*p == ';') {
strcpy(buf, ";");
return p + 1;
}
s = p;
while (*p != 0 && *p != ';' && !isspace_(*p))
p++;
e = p;
while (isspace_(*e))
e++;
len = p - s;
if (len > blen - 1)
len = blen - 1;
memcpy(buf, s, len);
buf[len] = 0;
return e;
}
static char *spaces_right(char *p) {
while (*p && isspace_(*p))
++p;
return p;
}
static char *spaces_left(char *p) {
while (isspace_(*p))
--p;
return p;
}
static int
lw_diff2wc_diff(int mindiff, int doChar, char *lw_diff_fn, char *wc_diff_fn)
{
FILE *lw_diff_fp, *wc_diff_fp, *fp[2], *pipe_fp;
char line[BUFLEN], command[CMDLEN], pipe_ln[BUFLEN];
char *ok, *fn[2];
size_t i;
int j;
int space, alpha_, digit, l[2], k[2];
char wc_old_fn[CMDLEN], wc_new_fn[CMDLEN];
char *_d = mindiff ? "-d" : "";
TRACE(fprintf(STDERR, "lw_diff2wc_diff(%i,%i,%s,%s)\n", mindiff, doChar, lw_diff_fn, wc_diff_fn));
lw_diff_fp = Rfopen(lw_diff_fn);
if (!(ok = fgets(line, BUFLEN, lw_diff_fp))) {
fclose(lw_diff_fp);
ERRHNDL(0, "empty file in lw_diff2wc_diff:", lw_diff_fn, 1);
}
sprintf(wc_old_fn, "%s%c.difflib-%ld-lw_diff2wc_diff-old", tmpdir(), DIR_SEP, (long) getpid());
fn[0] = wc_old_fn;
sprintf(wc_new_fn, "%s%c.difflib-%ld-lw_diff2wc_diff-new", tmpdir(), DIR_SEP, (long) getpid());
fn[1] = wc_new_fn;
wc_diff_fp = Wfopen(wc_diff_fn);
while (ok && strncmp(line, "@@ -", 4)) {
fprintf(wc_diff_fp, "%s", line);
ok = fgets(line, BUFLEN, lw_diff_fp);
}
fflush(wc_diff_fp);
fclose(wc_diff_fp);
while (ok) {
wc_diff_fp = Afopen(wc_diff_fn);
do {
fprintf(wc_diff_fp, "%s", line);
} while (line[strlen(line) - 1] != '\n' && (ok = fgets(line, BUFLEN, lw_diff_fp)));
fflush(wc_diff_fp);
fclose(wc_diff_fp);
l[0] = l[1] = k[0] = k[1] = 0;
for (j = 0; j < 2; j++)
fp[j] = Wfopen(fn[j]);
while (ok && (ok = fgets(line, BUFLEN, lw_diff_fp)) && strchr(" -+", line[0])) {
if (line[0] == ' ') {
char l1 = line[1];
while (k[0] < k[1]) {
markNL(fp[0], k[0]++);
l[0]++;
}
while (k[1] < k[0]) {
markNL(fp[1], k[1]++);
l[1]++;
}
i = 1;
do {
for (j = 0; j < 2; j++) {
fprintf(fp[j], "%s", line+i);
}
i = 0;
} while (line[strlen(line) - 1] != '\n' && (ok = fgets(line, BUFLEN, lw_diff_fp)));
for (j = 0; j < 2; j++) {
l[j]++;
}
if (l1 == '\1')
for (j = 0; j < 2; j++) {
markNL(fp[j], k[j]++);
l[j]++;
}
} else {
if (line[0] == '-')
j = 0;
else
j = 1;
if (line[1] == '\1') {
fprintf(fp[j], "\1\n");
markNL(fp[j], k[j]++);
l[j] += 2;
} else if (doChar) {
i = 1;
do {
for (; line[i] != '\n' && line[i] != '\0'; i++) {
fprintf(fp[j], "%c\n", line[i]);
l[j]++;
}
i = 0;
} while (line[strlen(line) - 1] != '\n' && (ok = fgets(line, BUFLEN, lw_diff_fp)));
} else {
space = isspace_((int) (line[1]));
alpha_ = isalpha_((int) (line[1]));
digit = isdigit_((int) (line[1]));
i = 1;
do {
for (; line[i] != '\n' && line[i] != '\0'; i++) {
if ((space && !isspace_((int) line[i])) ||
(!space && isspace_((int) line[i])) ||
(alpha_ && !isalpha_((int) line[i])) ||
(!alpha_ && isalpha_((int) line[i])) ||
(digit && !isdigit_((int) line[i])) ||
(!digit && isdigit_((int) line[i])) ||
(!isspace_((int) line[i]) &&
!isalpha_((int) line[i]) &&
!isdigit_((int) line[i]))) {
fprintf(fp[j], "\n");
space = isspace_((int) line[i]);
alpha_ = isalpha_((int) line[i]);
digit = isdigit_((int) line[i]);
l[j]++;
}
fprintf(fp[j], "%c", line[i]);
}
i = 0;
} while (line[strlen(line) - 1] != '\n' && (ok = fgets(line, BUFLEN, lw_diff_fp)));
fprintf(fp[j], "\n");
l[j]++;
}
}
}
for (j = 0; j < 2; j++) {
fflush(fp[j]);
fclose(fp[j]);
}
/*
sprintf(command,
"%s -a %s -u%i %s %s | egrep -v '^(@@ \\-|\\+\\+\\+ |\\-\\-\\- |[ \\+\\-]@\\+\\-)' >> %s",
DIFF,_d,MAX(l[0],l[1]),fn[0],fn[1],wc_diff_fn);
SYSTEM(command);
*/
sprintf(command, "%s -a %s -U%d %s %s", DIFF, _d, MAX(l[0], l[1]), fn[0], fn[1]);
pipe_fp = popen(command, "r");
wc_diff_fp = Afopen(wc_diff_fn);
while (fgets(pipe_ln, BUFLEN, pipe_fp)) {
if (strncmp(pipe_ln, "@@ -", 4) &&
strncmp(pipe_ln, "+++ ", 4) &&
strncmp(pipe_ln, "--- ", 4) &&
strncmp(pipe_ln, " @+-", 4) &&
strncmp(pipe_ln, "+@+-", 4) &&
strncmp(pipe_ln, "-@+-", 4)) {
fprintf(wc_diff_fp, "%s", pipe_ln);
}
}
fflush(wc_diff_fp);
fclose(wc_diff_fp);
pclose(pipe_fp);
}
UNLINK(wc_old_fn);
UNLINK(wc_new_fn);
fclose(lw_diff_fp);
return 1;
}