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Allow escaping , and } with # in #{}; GitHub issue 1332.

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This commit is contained in:
nicm 2018-05-22 08:49:12 +00:00
parent f2f9605c63
commit 2a04665626
2 changed files with 39 additions and 19 deletions
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46
format.c
View File

@ -837,18 +837,22 @@ found:
return (copy);
}
/* Skip until comma. */
static char *
format_skip(char *s)
/* Skip until end. */
static const char *
format_skip(const char *s, char end)
{
int brackets = 0;
for (; *s != '\0'; s++) {
if (*s == '{')
if (*s == '#' && s[1] == '{')
brackets++;
if (*s == '#' && strchr(",#{}", s[1]) != NULL) {
s++;
continue;
}
if (*s == '}')
brackets--;
if (*s == ',' && brackets == 0)
if (*s == end && brackets == 0)
break;
}
if (*s == '\0')
@ -862,7 +866,7 @@ format_choose(char *s, char **left, char **right)
{
char *cp;
cp = format_skip(s);
cp = (char *)format_skip(s, ',');
if (cp == NULL)
return (-1);
*cp = '\0';
@ -892,6 +896,7 @@ format_replace(struct format_tree *ft, const char *key, size_t keylen,
size_t valuelen, newlen, fromlen, tolen, used;
long limit = 0;
int modifiers = 0, compare = 0, search = 0;
int literal = 0;
/* Make a copy of the key. */
copy0 = copy = xmalloc(keylen + 1);
@ -900,6 +905,12 @@ format_replace(struct format_tree *ft, const char *key, size_t keylen,
/* Is there a length limit or whatnot? */
switch (copy[0]) {
case 'l':
if (copy[1] != ':')
break;
literal = 1;
copy += 2;
break;
case 'm':
if (copy[1] != ':')
break;
@ -988,6 +999,12 @@ format_replace(struct format_tree *ft, const char *key, size_t keylen,
break;
}
/* Is this a literal string? */
if (literal) {
value = xstrdup(copy);
goto done;
}
/* Is this a comparison or a conditional? */
if (search) {
/* Search in pane. */
@ -1019,7 +1036,7 @@ format_replace(struct format_tree *ft, const char *key, size_t keylen,
free(left);
} else if (*copy == '?') {
/* Conditional: check first and choose second or third. */
ptr = format_skip(copy);
ptr = (char *)format_skip(copy, ',');
if (ptr == NULL)
goto fail;
*ptr = '\0';
@ -1082,6 +1099,7 @@ format_replace(struct format_tree *ft, const char *key, size_t keylen,
}
/* Expand the buffer and copy in the value. */
done:
valuelen = strlen(value);
while (*len - *off < valuelen + 1) {
*buf = xreallocarray(*buf, 2, *len);
@ -1179,14 +1197,8 @@ format_expand(struct format_tree *ft, const char *fmt)
fmt += n + 1;
continue;
case '{':
brackets = 1;
for (ptr = fmt; *ptr != '\0'; ptr++) {
if (*ptr == '{')
brackets++;
if (*ptr == '}' && --brackets == 0)
break;
}
if (*ptr != '}' || brackets != 0)
ptr = format_skip(fmt - 2, '}');
if (ptr == NULL)
break;
n = ptr - fmt;
@ -1194,12 +1206,14 @@ format_expand(struct format_tree *ft, const char *fmt)
break;
fmt += n + 1;
continue;
case '}':
case '#':
case ',':
while (len - off < 2) {
buf = xreallocarray(buf, 2, len);
len *= 2;
}
buf[off++] = '#';
buf[off++] = ch;
continue;
default:
s = NULL;

12
tmux.1
View File

@ -3542,11 +3542,17 @@ The possible variables are listed in the table below, or the name of a
.Nm
option may be used for an option's value.
Some variables have a shorter alias such as
.Ql #S ,
and
.Ql #S ;
.Ql ##
is replaced by a single
.Ql # .
.Ql # ,
.Ql #,
by a
.Ql \&,
and
.Ql #}
by a
.Ql } .
.Pp
Conditionals are available by prefixing with
.Ql \&?