First attempt to implement the block system from django templates on top of the npm module ejs.

pull/557/head
Egil Moeller 2012-03-07 17:36:11 +01:00
parent 7b518eeb2d
commit 92dc3e59d6
3 changed files with 102 additions and 0 deletions

84
src/node/eejs/eejs.js Normal file
View File

@ -0,0 +1,84 @@
/*
* Copyright (c) 2011 RedHog (Egil Möller) <egil.moller@freecode.no>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS-IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* Basic usage:
*
* require("./eejs").require("./examples/foo.ejs")
*/
var ejs = require("ejs");
var fs = require("fs");
exports.init = function (b, recursive) {
if (!exports.info) {
exports.info = {
buf_stack: [],
block_stack: [],
blocks: {},
level: 1
}
}
exports.info.buf = b;
}
exports.begin_capture = function() {
exports.info.buf_stack.push(exports.info.buf.concat());
exports.info.buf.splice(0, exports.info.buf.length);
}
exports.end_capture = function () {
var res = exports.info.buf.join("");
exports.info.buf.splice.apply(
exports.info.buf,
[0, exports.info.buf.length].concat(exports.info.buf_stack.pop()));
return res;
}
exports.begin_define_block = function (name) {
if (typeof exports.info.blocks[name] == "undefined")
exports.info.blocks[name] = {};
exports.info.block_stack.push(name);
exports.begin_capture();
}
exports.end_define_block = function () {
content = exports.end_capture();
var name = exports.info.block_stack.pop();
if (typeof exports.info.blocks[name].content == "undefined")
exports.info.blocks[name].content = content;
return exports.info.blocks[name].content;
}
exports.end_block = function () {
var res = exports.end_define_block();
exports.info.buf.push(res);
}
exports.begin_block = exports.begin_define_block;
exports.require = function (name, args) {
if (args == undefined) args = {};
if (exports.info)
exports.info.buf_stack.push(exports.info.buf);
var res = ejs.render(
fs.readFileSync(require.resolve(name)).toString(),
args);
if (exports.info)
exports.info.buf = exports.info.buf_stack.pop();
if (exports.info.buf)
exports.info.buf.push(res);
return res;
}

View File

@ -0,0 +1,11 @@
<% var e = require("./eejs.js"); e.init(buf); %>
a
<% e.begin_block("bar"); %>
A
<% e.begin_block("foo"); %>
XX
<% e.end_block(); %>
B
<% e.end_block(); %>
b

View File

@ -0,0 +1,7 @@
<% var e = require("./eejs.js"); e.init(buf); %>
<% e.begin_define_block("foo"); %>
YY
<% e.end_define_block(); %>
<% e.require("./bar.ejs"); %>