Update fp doc generation.

lib/fp/build-doc.js

@@ -1,9 +1,45 @@
 'use strict';
 
+var _ = require('lodash'),
+    fs = require('fs-extra'),
+    path = require('path'),
+    util = require('../common/util');
+
+var basePath = path.join(__dirname, '..', '..'),
+    docPath = path.join(basePath, 'doc'),
+    readmePath = path.join(docPath, 'FP-Guide.md');
+
+var mapping = require('../../fp/_mapping'),
+    templatePath = path.join(__dirname, 'template/doc'),
+    template = util.globTemplate(path.join(templatePath, '*.jst'));
+
+var templateData = {
+  'mapping': mapping,
+  'toFuncList': toFuncList
+};
+
+function toFuncList(array) {
+  var chunks = _.chunk(array.slice().sort(), 5),
+      lastChunk = _.last(chunks),
+      last = lastChunk ? lastChunk.pop() : undefined;
+
+  var result = '`' + _.map(chunks, function(chunk) {
+    return chunk.join('`, `') + '`';
+  }).join(',\n`');
+
+  return result + (last == null ? '' : (', & `' + last + '`'));
+}
+
 /*----------------------------------------------------------------------------*/
 
-function build(type) {
-
+function onComplete(error) {
+  if (error) {
+    throw error;
+  }
 }
 
-build(_.last(process.argv));
+function build() {
+  fs.writeFile(readmePath, template.wiki(templateData), onComplete);
+}
+
+build();