Support for elements of config.xml

This add some elements intended to be used later when handling
data coming from config.xml of widgets.

Change-Id: I1df9eb158d5c37578c9c7a8caa9eb8f85527ca4b

1 files changed, 105 insertions, 0 deletions

diff --git a/wgt-locales.c b/wgt-locales.c
new file mode 100644
index 0000000..d985b64
--- /dev/null
+++ b/wgt-locales.c
@@ -0,0 +1,105 @@
+
+#define _GNU_SOURCE
+#include <string.h>
+#include <errno.h>
+#include <unistd.h>
+#include <ctype.h>
+
+#include "wgt.h"
+
+struct locarr {
+	int count;
+	char **arr;
+};
+
+static struct locarr locarr = { 0, NULL };
+
+static int add(const char *locstr, int length)
+{
+	int i;
+	char *item, **ptr;
+
+	item = strndup(locstr, length);
+	if (item != NULL) {
+		for (i = 0 ; item[i] ; i++)
+			item[i] = tolower(item[i]);
+		for (i = 0 ; i < locarr.count ; i++)
+			if (!strcmp(item, locarr.arr[i])) {
+				free(item);
+				return 0;
+			}
+
+		ptr = realloc(locarr.arr, (1 + locarr.count) * sizeof(locarr.arr[0]));
+		if (ptr) {
+			locarr.arr = ptr;
+			locarr.arr[locarr.count++] = item;
+			return 0;
+		}
+		free(item);
+	}
+	errno = ENOMEM;
+	return -1;
+}
+
+void locales_reset()
+{
+	while (locarr.count)
+		free(locarr.arr[--locarr.count]);
+}
+
+int locales_add(const char *locstr)
+{
+	const char *stop, *next;
+	while (*locstr) {
+		stop = strchrnul(locstr, ',');
+		next = stop + !!*stop;
+		while (locstr != stop) {
+			if (add(locstr, stop - locstr))
+				return -1;
+			do { stop--; } while(stop > locstr && *stop != '-');
+		}
+		locstr = next;
+	}
+	return 0;
+}
+
+int locales_score(const char *lang)
+{
+	int i;
+
+	if (lang)
+		for (i = 0 ; i < locarr.count ; i++)
+			if (!strcasecmp(lang, locarr.arr[i]))
+				return i;
+
+	return INT_MAX;
+}
+
+char *locales_locate_file(const char *filename)
+{
+	int i;
+	char path[PATH_MAX];
+	char * result;
+
+	for (i = 0 ; i < locarr.count ; i++) {
+		if (snprintf(path, sizeof path, "locales/%s/%s", locarr.arr[i], filename) >= (int)(sizeof path)) {
+			errno = EINVAL;
+			return NULL;
+		}
+		if (!access(path, F_OK)) {
+			result = strdup(path);
+			if (!result)
+				errno = ENOMEM;
+			return result;
+		}
+	}
+	if (access(filename, F_OK)) {
+		result = strdup(filename);
+		if (!result)
+			errno = ENOMEM;
+		return result;
+	}
+	errno = ENOENT;
+	return NULL;
+}
+