add tools/locale (string extraction)

tools/locale/strings.js

@@ -0,0 +1,67 @@
+var path = Ox.PATH.replace('/build/', '/dev/'),
+    files = [
+        path + 'Ox/json/Ox.json',
+        path + 'Ox.UI/json/Ox.UI.json'
+    ],
+    strings = {
+        'inside Ox._()': {},
+        'outside Ox._()': {}
+    },
+    lines = ['\n'];
+
+Ox.getJSON(files, function(data) {
+    files = [];
+    Ox.forEach(data, function(data, file) {
+        files = files.concat(Ox.flatten(data.files).filter(function(file) {
+            return Ox.endsWith(file, '.js');
+        }));
+    });
+    Ox.getAsync(files.map(function(file) {
+        return Ox.PATH + file;
+    }), Ox.get, function(data) {
+        Ox.forEach(data, function(data, file) {
+            var inside = false,
+                level = 0,
+                tokens = Ox.tokenize(data);
+            tokens.forEach(function(token, i) {
+                var key, string;
+                if (i >= 3
+                    && tokens[i - 3].value + tokens[i - 2].value
+                    + tokens[i - 1].value + tokens[i].value == 'Ox._('
+                ) {
+                    inside = true;
+                    level = 0;
+                } else if (inside) {
+                    if (token.value == '(') {
+                        level++;
+                    } else if (token.value == ')') {
+                        level--;
+                        inside = level > 0;
+                    }
+                }
+                if (token.type == 'string' && token.value.length > 2) {
+                    key = inside ? 'inside Ox._()' : 'outside Ox._()';
+                    string = token.value.slice(1, -1)
+                        .replace(/\\'/g, '\'')
+                        .replace(/([^\\]")/, '\\"')
+                    if (!Ox.isArray(strings[key][string])) {
+                        strings[key][string] = [];
+                    }
+                    strings[key][string].push(
+                        file.replace(path, '') + ':' + token.line
+                    );
+                }
+            });
+        });
+        Ox.forEach(strings, function(values, key) {
+            lines.push(key);
+            Ox.sort(Object.keys(values)).forEach(function(string) {
+                lines.push(Ox.repeat(' ', 4) + '"' + string + '"');
+                Ox.sort(strings[key][string]).forEach(function(file) {
+                    lines.push(Ox.repeat(' ', 8) + file);
+                });
+            });
+        });
+        Ox.print(lines.join('\n'));
+    });
+});