1 | eco = require 'eco'
|
2 | mongoose = require 'mongoose'
|
3 | fs = require 'fs'
|
4 | findit = require 'findit'
|
5 |
|
6 |
|
7 |
|
8 |
|
9 | name_regex = /"(\w|\d|_|\/)+"/
|
10 | block_start_regex = /<% ?block "(\w|\d|_)+" ?%>/g
|
11 | block_end_regex = /<% ?endblock ?%>/g
|
12 | parent_regex = /^<% ?parent "(\w|\d|_|\/)+" ?%>/g
|
13 | include_regex = /<% ?include "(\w|\d|_|\/)+" ?%>/g
|
14 |
|
15 |
|
16 |
|
17 | get_name = (tag) -> name_regex.exec(tag)[0].replace('"', '').replace('"', '')
|
18 |
|
19 | parse_includes = (src, templates) ->
|
20 | tags = src.match(include_regex)
|
21 | while tags?
|
22 | tags.each (tag) ->
|
23 | name = get_name tag
|
24 |
|
25 | if templates[name]?
|
26 | include_src = templates[name]
|
27 | else
|
28 | include_src = "<p>Error: Template <b>#{ name }</b> not found.</p>"
|
29 |
|
30 | src = src.replace(tag, include_src)
|
31 | tags = src.match(include_regex)
|
32 | src
|
33 |
|
34 |
|
35 | read_blocks = (src) ->
|
36 | blocks = {}
|
37 | tags = src.match(block_start_regex)
|
38 | if tags
|
39 | tags.each (tag) ->
|
40 | name = get_name tag
|
41 | start = src.search(tag)
|
42 | end = start + src.substring(start).search(block_end_regex)
|
43 | content = src.substring(start, end).replace(tag, '')
|
44 | blocks[name] = content
|
45 | blocks
|
46 |
|
47 |
|
48 | replace_blocks = (src, blocks) ->
|
49 | tags = src.match(block_start_regex)
|
50 | if tags
|
51 | tags.each (tag) ->
|
52 | name = get_name tag
|
53 | start = src.search(tag)
|
54 | end = start + src.substring(start).search(block_end_regex)
|
55 | content = src.substring(start, end).replace(tag, '')
|
56 |
|
57 | src = src.replace content, blocks[name] if blocks[name]?
|
58 | src
|
59 |
|
60 |
|
61 | clear_blocks = (src) ->
|
62 | src.replace(block_start_regex, '').replace(block_end_regex, '')
|
63 |
|
64 |
|
65 | parse_parents = (src, templates) ->
|
66 | blocks = read_blocks(src)
|
67 |
|
68 | tags = src.match(parent_regex)
|
69 | while tags?
|
70 | name = get_name tags.first()
|
71 |
|
72 | if templates[name]?
|
73 | parent_src = templates[name]
|
74 | else
|
75 | parent_src = "<p>Error: Template <b>#{ name }</b> not found.</p>"
|
76 |
|
77 | parent_blocks = read_blocks(parent_src)
|
78 | blocks = Object.merge( parent_blocks, blocks)
|
79 | tags = parent_src.match(parent_regex)
|
80 |
|
81 | src = parent_src if parent_src?
|
82 | src = replace_blocks src, blocks
|
83 | src = clear_blocks src
|
84 |
|
85 |
|
86 | generate = (name, templates) ->
|
87 |
|
88 |
|
89 |
|
90 | src = templates[name]
|
91 |
|
92 |
|
93 | src = parse_parents src, templates
|
94 | src = parse_includes src, templates
|
95 |
|
96 |
|
97 | app.get '/js/templates.js', (req, res) ->
|
98 | funcs = []
|
99 | Object.each app.templates, (name, src) ->
|
100 | if name.has('/_') or name.startsWith('_')
|
101 | try
|
102 | f = eco.compile(src)
|
103 | catch err
|
104 | f = -> console.log "Eco template '#{name}' has compilation problem: #{err}"
|
105 | funcs.push "'#{name}': #{f.toString()}"
|
106 |
|
107 | src = """var __templates = { #{ funcs.join(", ") } };
|
108 | var render = function(name, context){
|
109 | if (context == null) { context = {}; }
|
110 | context.conf = #{JSON.stringify(app.conf)};
|
111 | if (__templates[name] == null) { return 'Template <b>' + name + '</b> not found.'; }
|
112 | return __templates[name](context);
|
113 | }"""
|
114 | res.contentType 'application/javascript'
|
115 | res.send src
|
116 |
|
117 |
|
118 |
|
119 | load_templates = ->
|
120 | templates = {}
|
121 | findit.sync app.conf.templates_path, (f) ->
|
122 | if f.endsWith('.html')
|
123 | name = f.remove(app.conf.templates_path + '/').remove('.html')
|
124 | src = fs.readFileSync(f, 'utf-8')
|
125 | templates[name] = src
|
126 | templates
|
127 |
|
128 | module.exports = load_templates()
|
129 |
|
130 |
|
131 |
|
132 |
|
133 | http = require('http')
|
134 | res = http.ServerResponse.prototype
|
135 |
|
136 | res.render = (name, context={}) ->
|
137 | templates = load_templates()
|
138 |
|
139 | if templates[name]?
|
140 | src = generate(name, templates)
|
141 | try
|
142 | html = eco.render src, context
|
143 | catch err
|
144 | html = "Error: Template <b>#{name}</b> <i>#{err}</i>"
|
145 | else
|
146 | html = "Error: Template <b>#{name}</b> not found."
|
147 |
|
148 | @send html
|