* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
- * documentation, and that the name of Keith Packard not be used in
+ * documentation, and that the name of the author(s) not be used in
* advertising or publicity pertaining to distribution of the software without
- * specific, written prior permission. Keith Packard makes no
+ * specific, written prior permission. The authors make no
* 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>
-/*
+/* The language is documented in doc/fcformat.fncs
+ * These are the features implemented:
+ *
+ * simple %{elt}
+ * width %width{elt}
+ * index %{elt[idx]}
+ * name= %{elt=}
+ * :name= %{:elt}
+ * default %{elt:-word}
+ * count %{#elt}
+ * subexpr %{{expr}}
+ * filter-out %{-elt1,elt2,elt3{expr}}
+ * filter-in %{+elt1,elt2,elt3{expr}}
+ * conditional %{?elt1,elt2,!elt3{}{}}
+ * enumerate %{[]elt1,elt2{expr}}
+ * langset langset enumeration using the same syntax
+ * builtin %{=blt}
+ * convert %{elt|conv1|conv2|conv3}
+ *
+ * converters:
+ * basename FcStrBasename
+ * dirname FcStrDirname
+ * downcase FcStrDowncase
+ * shescape
+ * cescape
+ * xmlescape
+ * delete delete chars
+ * escape escape chars
+ * translate translate chars
+ *
+ * builtins:
+ * unparse FcNameUnparse
+ * fcmatch fc-match default
+ * fclist fc-list default
+ * pkgkit PackageKit package tag format
+ *
+ *
* Some ideas for future syntax extensions:
*
- * - langset enumeration using same syntax as array enumeration
+ * - verbose builtin that is like FcPatternPrint
* - allow indexing subexprs using '%{[idx]elt1,elt2{subexpr}}'
+ * - allow indexing in +, -, ? filtering?
* - 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 FCLIST_FORMAT "%{?file{%{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;
}
static FcBool
-interpret_filter (FcFormatContext *c,
- FcPattern *pat,
- FcStrBuf *buf)
+interpret_filter_in (FcFormatContext *c,
+ FcPattern *pat,
+ FcStrBuf *buf)
{
FcObjectSet *os;
FcPattern *subpat;
do
{
+ /* XXX binding */
if (!read_word (c) ||
!FcObjectSetAdd (os, (const char *) c->word))
{
}
static FcBool
-interpret_delete (FcFormatContext *c,
- FcPattern *pat,
- FcStrBuf *buf)
+interpret_filter_out (FcFormatContext *c,
+ FcPattern *pat,
+ FcStrBuf *buf)
{
FcPattern *subpat;
}
static FcBool
-interpret_array (FcFormatContext *c,
- FcPattern *pat,
- FcStrBuf *buf)
+interpret_enumerate (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, ']'))
}
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], 0, &langset))
+ {
+ FcStrSet *ss;
+ if (!(ss = FcLangSetGetLangs (langset)) ||
+ !(lang_strs = FcStrListCreate (ss)))
+ goto bail0;
+ }
+ }
+
subpat = FcPatternDuplicate (pat);
if (!subpat)
goto bail0;
done = FcTrue;
- for (i = 0; i < os->nobject; i++)
+ if (lang_strs)
{
- 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))
+ FcChar8 *lang;
+
+ FcPatternDel (subpat, os->objects[0]);
+ if ((lang = FcStrListNext (lang_strs)))
{
- FcPatternAdd (subpat, os->objects[i], v, FcFalse);
+ /* XXX binding? */
+ 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))
+ {
+ /* XXX binding */
+ FcPatternAdd (subpat, os->objects[i], v, FcFalse);
+ done = FcFalse;
+ }
+ }
+ }
if (!done)
{
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;
c->word = c->word + strlen ((const char *) c->word) + 1;
/* for now we just support 'default value' */
if (!expect_char (c, '-') ||
- !read_chars (c, '\0'))
+ !read_chars (c, '|'))
{
c->word = orig;
return FcFalse;
e = FcPatternObjectFindElt (pat,
FcObjectFromName ((const char *) c->word));
- if (e)
+ if (e || else_string)
{
- FcValueListPtr l;
+ FcValueListPtr l = NULL;
if (add_colon)
FcStrBufChar (buf, ':');
FcStrBufChar (buf, '=');
}
- l = FcPatternEltValues(e);
+ if (e)
+ l = FcPatternEltValues(e);
if (idx != -1)
{
}
else goto notfound;
}
- else
+ else if (l)
{
FcNameUnparseValueList (buf, l, '\0');
}
- }
- else
-notfound:
- {
- if (else_string)
- printf ("%s", else_string);
+ else
+ {
+ notfound:
+ if (else_string)
+ FcStrBufString (buf, else_string);
+ }
}
return FcTrue;
const FcChar8 *str,
FcStrBuf *buf)
{
+ /* XXX escape \n etc? */
+
while(*str)
{
switch (*str)
const FcChar8 *str,
FcStrBuf *buf)
{
+ /* XXX escape \n etc? */
+
while(*str)
{
switch (*str)
start = buf->len;
switch (*c->format) {
- case '=': ret = interpret_builtin (c, pat, buf); break;
- case '{': ret = interpret_subexpr (c, pat, buf); break;
- case '+': ret = interpret_filter (c, pat, buf); break;
- 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;
+ case '=': ret = interpret_builtin (c, pat, buf); break;
+ case '{': ret = interpret_subexpr (c, pat, buf); break;
+ case '+': ret = interpret_filter_in (c, pat, buf); break;
+ case '-': ret = interpret_filter_out (c, pat, buf); break;
+ case '?': ret = interpret_cond (c, pat, buf); break;
+ case '#': ret = interpret_count (c, pat, buf); break;
+ case '[': ret = interpret_enumerate (c, pat, buf); break;
+ default: ret = interpret_simple (c, pat, buf); break;
}
return ret &&
git.wh0rd.org / fontconfig.git / blobdiff