* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
- * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * THE AUTHOR(S) DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
- * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
#include <stdarg.h>
+/* XXX Document the language.
+ *
+ * These are mostly the features implemented but not documented:
+ *
+ * width %[[-]width]{tag}
+ * index %{tag[ids]}
+ * name= %{tag=|decorator}
+ * :name= %{:tag=|decorator}
+ * subexpr %{{expr}|decorator1|decorator2}
+ * delete %{-charset,lang{expr}|decorator}
+ * filter %{+family,familylang{expr}|decorator}
+ * cond %{?tag1,tag2,!tag3{}{}}
+ * decorat %{tag|decorator1|decorator2}
+ * default %{parameter:-word}
+ * array %{[]family,familylang{expr}|decorator}
+ * langset enumeration using the same syntax as arrays
+ *
+ * filters:
+ * basename FcStrBasename
+ * dirname FcStrDirname
+ * downcase FcStrDowncase
+ * shescape
+ * cescape
+ * xmlescape
+ * delete delete chars
+ * escape escape chars
+ * translate translate chars
+ *
+ * builtins:
+ * unparse
+ * fcmatch
+ * fclist
+ * pkgkit
+ */
+
/*
* Some ideas for future syntax extensions:
*
- * - array enumeration using '%{[]family,familylang{expr}|decorator}'
- * - langset enumeration using same syntax as array enumeration
* - allow indexing subexprs using '%{[idx]elt1,elt2{subexpr}}'
* - conditional/filtering/deletion on binding (using '(w)'/'(s)'/'(=)' notation)
*/
#define FCMATCH_FORMAT "%{file:-<unknown filename>|basename}: \"%{family[0]:-<unknown family>}\" \"%{style[0]:-<unknown style>}\""
#define FCLIST_FORMAT "%{?file{%{file}: }}%{=unparse}"
+#define PKGKIT_FORMAT "%{[]family{font(%{family|downcase|delete( )})\n}}%{[]lang{font(:lang=%{lang|downcase|translate(_,-)})\n}}"
static void
ret = FcPatternFormatToBuf (pat, (const FcChar8 *) format, buf)
BUILTIN ("fcmatch", FCMATCH_FORMAT);
BUILTIN ("fclist", FCLIST_FORMAT);
+ BUILTIN ("pkgkit", PKGKIT_FORMAT);
#undef BUILTIN
else
ret = FcFalse;
pass = pass &&
(negate ^
- (FcResultMatch == FcPatternGet (pat,
- (const char *) c->word,
- 0, &v)));
+ (FcResultMatch ==
+ FcPatternGet (pat, (const char *) c->word, 0, &v)));
}
while (consume_char (c, ','));
return FcTrue;
}
+static FcBool
+interpret_array (FcFormatContext *c,
+ FcPattern *pat,
+ FcStrBuf *buf)
+{
+ FcObjectSet *os;
+ FcPattern *subpat;
+ const FcChar8 *format_save;
+ int idx;
+ FcBool ret, done;
+ FcStrList *lang_strs;
+
+ if (!expect_char (c, '[') ||
+ !expect_char (c, ']'))
+ return FcFalse;
+
+ os = FcObjectSetCreate ();
+ if (!os)
+ return FcFalse;
+
+ ret = FcTrue;
+
+ do
+ {
+ if (!read_word (c) ||
+ !FcObjectSetAdd (os, (const char *) c->word))
+ {
+ FcObjectSetDestroy (os);
+ return FcFalse;
+ }
+ }
+ while (consume_char (c, ','));
+
+ /* If we have one element and it's of type FcLangSet, we want
+ * to enumerate the languages in it. */
+ lang_strs = NULL;
+ if (os->nobject == 1)
+ {
+ FcLangSet *langset;
+ if (FcResultMatch ==
+ FcPatternGetLangSet (pat, os->objects[0], idx, &langset))
+ {
+ FcStrSet *ss;
+ if (!(ss = FcLangSetGetLangs (langset)) ||
+ !(lang_strs = FcStrListCreate (ss)))
+ goto bail0;
+ }
+ }
+
+ subpat = FcPatternDuplicate (pat);
+ if (!subpat)
+ goto bail0;
+
+ format_save = c->format;
+ idx = 0;
+ do
+ {
+ int i;
+
+ done = FcTrue;
+
+ if (lang_strs)
+ {
+ FcChar8 *lang;
+
+ FcPatternDel (subpat, os->objects[0]);
+ if ((lang = FcStrListNext (lang_strs)))
+ {
+ FcPatternAddString (subpat, os->objects[0], lang);
+ done = FcFalse;
+ }
+ }
+ else
+ {
+ for (i = 0; i < os->nobject; i++)
+ {
+ FcValue v;
+
+ /* XXX this can be optimized by accessing valuelist linked lists
+ * directly and remembering where we were. Most (all) value lists
+ * in normal uses are pretty short though (language tags are
+ * stored as a LangSet, not separate values.). */
+ FcPatternDel (subpat, os->objects[i]);
+ if (FcResultMatch ==
+ FcPatternGet (pat, os->objects[i], idx, &v))
+ {
+ FcPatternAdd (subpat, os->objects[i], v, FcFalse);
+ done = FcFalse;
+ }
+ }
+ }
+
+ if (!done)
+ {
+ c->format = format_save;
+ ret = interpret_subexpr (c, subpat, buf);
+ if (!ret)
+ goto bail;
+ }
+
+ idx++;
+ } while (!done);
+
+ if (c->format == format_save)
+ skip_subexpr (c);
+
+bail:
+ FcPatternDestroy (subpat);
+bail0:
+ if (lang_strs)
+ FcStrListDone (lang_strs);
+ FcObjectSetDestroy (os);
+
+ return ret;
+}
+
static FcBool
interpret_simple (FcFormatContext *c,
FcPattern *pat,
c->format-1 - c->format_orig + 1);
return FcFalse;
}
- expect_char (c, ']');
+ if (!expect_char (c, ']'))
+ return FcFalse;
}
if (consume_char (c, '='))
case '-': ret = interpret_delete (c, pat, buf); break;
case '?': ret = interpret_cond (c, pat, buf); break;
case '#': ret = interpret_count (c, pat, buf); break;
+ case '[': ret = interpret_array (c, pat, buf); break;
default: ret = interpret_simple (c, pat, buf); break;
}
git.wh0rd.org / fontconfig.git / blobdiff