m + implement libfonts_do_{decoded_,}font_descriptions_match

Signed-off-by: Mattias Andrée <maandree@kth.se>

1 files changed, 71 insertions, 0 deletions

diff --git a/libfonts_do_decoded_font_descriptions_match.c b/libfonts_do_decoded_font_descriptions_match.c
new file mode 100644
index 0000000..69f7cf0
--- /dev/null
+++ b/libfonts_do_decoded_font_descriptions_match.c
@@ -0,0 +1,71 @@
+/* See LICENSE file for copyright and license details. */
+#include "common.h"
+#ifndef TEST
+
+
+#define LIST_ALL_FIELDS(X, _)\
+	X(xlfd_version) _\
+	X(foundry) _\
+	X(family_name) _\
+	X(weight_name) _\
+	X(slant) _\
+	X(setwidth_name) _\
+	X(add_style_name) _\
+	X(pixel_size) _\
+	X(point_size) _\
+	X(resolution_x) _\
+	X(resolution_y) _\
+	X(spacing) _\
+	X(average_width) _\
+	X(charset_registry) _\
+	X(charset_encoding) _\
+	X(charset_subset)
+
+
+static int
+equal(const char *desc, const char *spec)
+{
+	size_t i;
+
+	if (!spec)
+		return !desc;
+	if (spec[0] == '*' && !spec[1])
+		return 1;
+	if (!desc)
+		return 0;
+
+	for (; desc[i] && spec[i]; i++)
+		if (spec[i] != desc[i] && spec[i] != '?')
+			return 0;
+
+	return desc[i] == spec[i];
+}
+
+int
+libfonts_do_decoded_font_descriptions_match(const struct libfonts_font_description *desc,
+                                            const struct libfonts_font_description *spec)
+{
+	if (desc->private_font_name || spec->private_font_name)
+		return libfonts_do_font_descriptions_match(desc->private_font_name, spec->private_font_name);
+
+#define X(F)\
+	if (!equal(desc->F, spec->F))\
+		return 0
+	LIST_ALL_FIELDS(X, ;);
+#undef X
+
+	return libfonts_do_font_descriptions_match(desc->unrecognised_fields, spec->unrecognised_fields);
+}
+
+
+#else
+
+
+int
+main(void)
+{
+	return 0; /* XXX add test */
+}
+
+
+#endif