1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
|
/**
* Copyright 2009 Google Inc.
*
* 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.
*/
/**
* @fileOverview Functional HTML tag writing.<br/>
*
* <p>This library allows you to write HTML in the form of nested function
* calls. By default, a function is predefined for each tag, with the function
* name being in all caps. A dictionary of HTML attributes can optionally be
* passed as a first argument to a tag; other arguments become child tags.
* Attribute names that conflict with JavaScript
* keywords have been renamed; use "className" in place of "class" and
* "htmlFor" in place of "for".</p>
*
* <p>Tag objects inherit from Array, so array methods can be used to
* manipulate a tag's list of child tags.</p>
*
* @example
print(P({id:"sec3"},"Tags are ",B(I("crazy"))," awesome."));
*/
import("jsutils.eachProperty");
import("stringutils");
import("stringutils.toHTML");
function html(x) {
// call out to stringutils.html().
var args = Array.prototype.slice.call(arguments);
return stringutils.html.apply(this, args);
};
function toHTML(x) {
// call out to stringutils.toHTML().
var args = Array.prototype.slice.call(arguments);
return stringutils.toHTML.apply(this, args)
};
//----------------------------------------------------------------
// tags.
//----------------------------------------------------------------
var _neverSingletones = {
'TEXTAREA': true,
'SCRIPT': true,
'DIV': true,
'IFRAME': true,
'UL': true,
'TABLE': true
};
/**
* Imports a specified list of tags. All HTML tags are automatically imported
* by default, but you may wish to use the tag library to write other kinds
* of mark-up. For each tag you want to import, pass in the name (including
* any punctuation) with the (upper/lower) case you want to use for the function
* (traditionally all uppercase). The function name will have punctuation
* replaced with underscores, and the printed tag will be all lowercase.
*
* @param {object} scopeObj where to define the tags; to define in the global scope, pass <code>this</code> from the top level (not from inside a function)
* @param {array} tagArray an array of strings, the tags to import
* @example
importTags(this, ["MEDIA:TITLE"]);
print(MEDIA_TITLE({type:"html"}, "funny pictures"));
// prints <media:title type="html">funny pictures</media:title>
*/
function _importTags(scopeObj, tagArray) {
tagArray.forEach(function(arg) {
var funcName = arg.replace(/:/g, "_").replace(/-/g, "_");
var tagName = arg.toLowerCase();
scopeObj[funcName] = function() {
var tag = [];
tag.name = tagName;
var contents = Array.prototype.slice.call(arguments);
if (contents.length > 0) {
if (contents[0] &&
(! contents[0].toHTML) &&
((typeof contents[0]) == "object") &&
(! Array.prototype.isPrototypeOf(contents[0])) &&
(! Date.prototype.isPrototypeOf(contents[0]))) {
// first arg is attributes
tag.attribs = contents[0];
contents.shift();
}
else {
tag.attribs = {};
}
contents.forEach(function (content) {
tag.push(content);
});
}
else {
tag.attribs = {};
}
tag.toString = function() { return this.toHTML(); }; // this behavior is relied on
tag.toHTML = function() {
var t = this;
var result = [];
result.add = function(x) { this.push(x); return this; };
result.add('<').add(t.name);
if (t.attribs) {
eachProperty(t.attribs, function(k,v) {
if (k == "className") k = "class";
if (k == "htmlFor") k = "for";
if (!(v === undefined)) {
// escape quotes and newlines in values
v = String(v).replace(/\"/g, '\\"').replace(/\n/g, '\\n');
result.add(' ').add(k).add('="').add(v).add('"');
}
});
}
if ((t.length < 1) && (!(t.name.toUpperCase() in _neverSingletones))) {
result.add(' />');
}
else {
result.add('>');
t.forEach(function (x) {
result.add(toHTML(x));
});
result.add('</').add(t.name).add('\n>');
}
return result.join("");
};
return tag;
};
});
}
var _html_tags =
["A", "ABBR", "ACRONYM", "ADDRESS", "APPLET", "AREA", "B",
"BASE", "BASEFONT", "BDO", "BIG", "BLOCKQUOTE", "BODY",
"BR", "BUTTON", "CAPTION", "CENTER", "CITE", "CODE", "COL",
"COLGROUP", "DD", "DEL", "DIR", "DIV", "DFN", "DL", "DT",
"EM", "FIELDSET", "FONT", "FORM", "FRAME", "FRAMESET",
"H1", "H2", "H3", "H4", "H5", "H6",
"HEAD", "HR", "HTML", "I", "IFRAME", "IMG", "INPUT",
"INS", "ISINDEX", "KBD", "LABEL", "LEGEND", "LI", "LINK",
"MAP", "MENU", "META", "NOFRAMES", "NOSCRIPT", "OBJECT",
"OL", "OPTGROUP", "OPTION", "P", "PARAM", "PRE", "Q", "S",
"SAMP", "SCRIPT", "SELECT", "SMALL", "SPAN", "STRIKE",
"STRONG", "STYLE", "SUB", "SUP", "TABLE", "TBODY", "TD",
"TEXTAREA", "TFOOT", "TH", "THEAD", "TITLE", "TR", "TT",
"U", "UL", "VAR", "XMP"];
_importTags(this, _html_tags);
|
