design tag utility

3 files changed, 55 insertions, 0 deletions

diff --git a/utils/storage/Makefile.am b/utils/storage/Makefile.am
index e9e9ca9..821a43b 100644
--- a/utils/storage/Makefile.am
+++ b/utils/storage/Makefile.am
@@ -32,3 +32,9 @@ gen_binary_files_LDADD      = ../../src/libpinyin.la @GLIB2_LDFLAGS@
 export_interpolation_SOURCES = export_interpolation.cpp
 
 export_interpolation_LDADD = ../../src/libpinyin.la @GLIB2_LDFLAGS@
+
+noinst_LTLIBRARIES        = libtagutils.la
+
+libtagutils_la_LDFLAGS    = -static
+
+libtagutils_la_SOURCES    = tag_utility.cpp
diff --git a/utils/storage/tag_utility.cpp b/utils/storage/tag_utility.cpp
new file mode 100644
index 0000000..6d15452
--- /dev/null
+++ b/utils/storage/tag_utility.cpp
@@ -0,0 +1,29 @@
+#include <glib.h>
+#include "tag_utility.h"
+
+
+/* internal taglib structure */
+struct tag_entry{
+    int m_line_type;
+    const char * m_line_tag;
+    int m_num_of_values;
+    const char ** m_required_tags;
+    /* const char ** m_optional_tags; */
+    const char ** m_ignored_tags;
+
+public:
+    tag_entry(int line_type, const char * line_tag, int num_of_values,
+              const char * required_tags[], const char * ignored_tags[]){
+        m_line_type = line_type; m_line_tag = line_tag;
+        m_num_of_values = num_of_values;
+        m_required_tags = required_tags;
+        m_ignored_tags = ignored_tags;
+    }
+};
+
+void test(){
+    TAGLIB_BEGIN_ADD_TAG(1, "\\data", 0);
+    TAGLIB_REQUIRED_TAGS = {"model", NULL};
+    TAGLIB_IGNORED_TAGS = {"data", NULL};
+    TAGLIB_END_ADD_TAG;
+}
diff --git a/utils/storage/tag_utility.h b/utils/storage/tag_utility.h
index b852ad5..77c639b 100644
--- a/utils/storage/tag_utility.h
+++ b/utils/storage/tag_utility.h
@@ -51,4 +51,24 @@ bool taglib_pop_state();
 
 bool taglib_fini();
 
+/* Useful macros to ease taglib_add_tag call,
+ * or else need to use C++0x-features.
+ */
+
+#define TAGLIB_BEGIN_ADD_TAG(line_type, line_tag, num_of_values)        \
+    {                                                                   \
+        const int line_type_saved = line_type;                          \
+        const char * line_tag_saved = line_tag;                         \
+        const int num_of_values_saved = num_of_values;                  \
+        ;
+
+#define TAGLIB_REQUIRED_TAGS const char * required_tags_saved[]
+/* #define TAGLIB_OPTIONAL_TAGS const char * optional_tags_saved */
+#define TAGLIB_IGNORED_TAGS const char * ignored_tags_saved[]
+
+#define TAGLIB_END_ADD_TAG                                              \
+    taglib_add_tag(line_type_saved, line_tag_saved, num_of_values_saved, \
+                   required_tags_saved, ignored_tags_saved);            \
+    };
+
 #endif