Generate tree data

Author: lepture

.gitignore

@@ -1,3 +1,4 @@
 node_modules/
 coverage/
 lib/*.json
+*.log

.npmignore

@@ -6,3 +6,4 @@ data/
 .gitmodules
 .travis.yml
 .npmignore
+*.log

package.json

@@ -23,6 +23,7 @@
   },
   "scripts": {
     "test": "node_modules/.bin/mocha",
+    "data": "node scripts/generate.js",
     "test-cov": "node_modules/.bin/istanbul cover node_modules/.bin/_mocha --bail",
     "test-lcov": "node_modules/.bin/istanbul cover node_modules/.bin/_mocha --report lcovonly --bail"
   }

scripts/generate.js

@@ -10,7 +10,28 @@ function parse(text) {
 
   lines.forEach(function(line) {
     var bits = line.split('\t');
-    rv[bits[0]] = bits[1];
+    var code = bits[0], name = bits[1];
+
+    var p1 = code.substr(0, 2);
+    var p2 = code.substr(0, 4);
+    if (/[1-9]0{4,5}$/.test(code)) {
+      rv[p1] = {
+        name: name,
+        code: code,
+        prefectures: {}
+      };
+    } else if (/[1-9]0{2,3}$/.test(code)) {
+      rv[p1]['prefectures'][p2] = {
+        name: name,
+        code: code,
+        counties: {}
+      };
+    } else {
+      rv[p1]['prefectures'][p2]['counties'][code] = {
+        name: name,
+        code: code
+      };
+    }
   });
 
   return rv;