/* Expand keys in a template. */
char *
format_expand(struct format_tree *ft, const char *fmt)
{
char *buf, *ptr;
const char *s;
size_t off, len, n;
int ch;
len = 64;
buf = xmalloc(len);
off = 0;
while (*fmt != '\0') {
if (*fmt != '#') {
while (len - off < 2) {
buf = xrealloc(buf, 2, len);
len *= 2;
}
buf[off++] = *fmt++;
continue;
}
fmt++;
ch = (u_char) *fmt++;
switch (ch) {
case '{':
ptr = strchr(fmt, '}');
if (ptr == NULL)
break;
n = ptr - fmt;
if (format_replace(ft, fmt, n, &buf, &len, &off) != 0)
break;
fmt += n + 1;
continue;
default:
if (ch >= 'A' && ch <= 'Z') {
s = format_aliases[ch - 'A'];
if (s != NULL) {
n = strlen(s);
if (format_replace (
ft, s, n, &buf, &len, &off) != 0)
break;
continue;
}
}
while (len - off < 2) {
buf = xrealloc(buf, 2, len);
len *= 2;
}
buf[off++] = ch;
continue;
}
break;
}
buf[off] = '\0';
return (buf);
}
/* Expand keys in a template. */
char *
format_expand(struct format_tree *ft, const char *fmt)
{
char *buf;
const char *ptr, *s;
size_t off, len, n;
int ch, brackets;
len = 64;
buf = xmalloc(len);
off = 0;
while (*fmt != '\0') {
if (*fmt != '#') {
while (len - off < 2) {
buf = xrealloc(buf, 2, len);
len *= 2;
}
buf[off++] = *fmt++;
continue;
}
fmt++;
ch = (u_char) *fmt++;
switch (ch) {
case '{':
brackets = 1;
for (ptr = fmt; *ptr != '\0'; ptr++) {
if (*ptr == '{')
brackets++;
if (*ptr == '}' && --brackets == 0)
break;
}
if (*ptr != '}' || brackets != 0)
break;
n = ptr - fmt;
if (format_replace(ft, fmt, n, &buf, &len, &off) != 0)
break;
fmt += n + 1;
continue;
case '#':
while (len - off < 2) {
buf = xrealloc(buf, 2, len);
len *= 2;
}
buf[off++] = '#';
continue;
default:
s = NULL;
if (ch >= 'A' && ch <= 'Z')
s = format_upper[ch - 'A'];
else if (ch >= 'a' && ch <= 'z')
s = format_lower[ch - 'a'];
if (s == NULL) {
while (len - off < 3) {
buf = xrealloc(buf, 2, len);
len *= 2;
}
buf[off++] = '#';
buf[off++] = ch;
continue;
}
n = strlen(s);
if (format_replace(ft, s, n, &buf, &len, &off) != 0)
break;
continue;
}
break;
}
buf[off] = '\0';
return (buf);
}
