/usr/share/javascript/codemirror/util/closetag.js is in libjs-codemirror 2.23-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 | /**
* Tag-closer extension for CodeMirror.
*
* This extension adds a "closeTag" utility function that can be used with key bindings to
* insert a matching end tag after the ">" character of a start tag has been typed. It can
* also complete "</" if a matching start tag is found. It will correctly ignore signal
* characters for empty tags, comments, CDATA, etc.
*
* The function depends on internal parser state to identify tags. It is compatible with the
* following CodeMirror modes and will ignore all others:
* - htmlmixed
* - xml
* - xmlpure
*
* See demos/closetag.html for a usage example.
*
* @author Nathan Williams <nathan@nlwillia.net>
* Contributed under the same license terms as CodeMirror.
*/
(function() {
/** Option that allows tag closing behavior to be toggled. Default is true. */
CodeMirror.defaults['closeTagEnabled'] = true;
/** Array of tag names to add indentation after the start tag for. Default is the list of block-level html tags. */
CodeMirror.defaults['closeTagIndent'] = ['applet', 'blockquote', 'body', 'button', 'div', 'dl', 'fieldset', 'form', 'frameset', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'head', 'html', 'iframe', 'layer', 'legend', 'object', 'ol', 'p', 'select', 'table', 'ul'];
/**
* Call during key processing to close tags. Handles the key event if the tag is closed, otherwise throws CodeMirror.Pass.
* - cm: The editor instance.
* - ch: The character being processed.
* - indent: Optional. Omit or pass true to use the default indentation tag list defined in the 'closeTagIndent' option.
* Pass false to disable indentation. Pass an array to override the default list of tag names.
*/
CodeMirror.defineExtension("closeTag", function(cm, ch, indent) {
if (!cm.getOption('closeTagEnabled')) {
throw CodeMirror.Pass;
}
var mode = cm.getOption('mode');
if (mode == 'text/html') {
/*
* Relevant structure of token:
*
* htmlmixed
* className
* state
* htmlState
* type
* context
* tagName
* mode
*
* xml
* className
* state
* tagName
* type
*/
var pos = cm.getCursor();
var tok = cm.getTokenAt(pos);
var state = tok.state;
if (state.mode && state.mode != 'html') {
throw CodeMirror.Pass; // With htmlmixed, we only care about the html sub-mode.
}
if (ch == '>') {
var type = state.htmlState ? state.htmlState.type : state.type; // htmlmixed : xml
if (tok.className == 'tag' && type == 'closeTag') {
throw CodeMirror.Pass; // Don't process the '>' at the end of an end-tag.
}
cm.replaceSelection('>'); // Mode state won't update until we finish the tag.
pos = {line: pos.line, ch: pos.ch + 1};
cm.setCursor(pos);
tok = cm.getTokenAt(cm.getCursor());
state = tok.state;
type = state.htmlState ? state.htmlState.type : state.type; // htmlmixed : xml
if (tok.className == 'tag' && type != 'selfcloseTag') {
var tagName = state.htmlState ? state.htmlState.context.tagName : state.tagName; // htmlmixed : xml
if (tagName.length > 0) {
insertEndTag(cm, indent, pos, tagName);
}
return;
}
// Undo the '>' insert and allow cm to handle the key instead.
cm.setSelection({line: pos.line, ch: pos.ch - 1}, pos);
cm.replaceSelection("");
} else if (ch == '/') {
if (tok.className == 'tag' && tok.string == '<') {
var tagName = state.htmlState ? (state.htmlState.context ? state.htmlState.context.tagName : '') : state.context.tagName; // htmlmixed : xml # extra htmlmized check is for '</' edge case
if (tagName.length > 0) {
completeEndTag(cm, pos, tagName);
return;
}
}
}
} else if (mode == 'xmlpure') {
var pos = cm.getCursor();
var tok = cm.getTokenAt(pos);
var tagName = tok.state.context.tagName;
if (ch == '>') {
// <foo> tagName=foo, string=foo
// <foo /> tagName=foo, string=/ # ignore
// <foo></foo> tagName=foo, string=/foo # ignore
if (tok.string == tagName) {
cm.replaceSelection('>'); // parity w/html modes
pos = {line: pos.line, ch: pos.ch + 1};
cm.setCursor(pos);
insertEndTag(cm, indent, pos, tagName);
return;
}
} else if (ch == '/') {
// <foo / tagName=foo, string= # ignore
// <foo></ tagName=foo, string=<
if (tok.string == '<') {
completeEndTag(cm, pos, tagName);
return;
}
}
}
throw CodeMirror.Pass; // Bubble if not handled
});
function insertEndTag(cm, indent, pos, tagName) {
if (shouldIndent(cm, indent, tagName)) {
cm.replaceSelection('\n\n</' + tagName + '>', 'end');
cm.indentLine(pos.line + 1);
cm.indentLine(pos.line + 2);
cm.setCursor({line: pos.line + 1, ch: cm.getLine(pos.line + 1).length});
} else {
cm.replaceSelection('</' + tagName + '>');
cm.setCursor(pos);
}
}
function shouldIndent(cm, indent, tagName) {
if (typeof indent == 'undefined' || indent == null || indent == true) {
indent = cm.getOption('closeTagIndent');
}
if (!indent) {
indent = [];
}
return indexOf(indent, tagName.toLowerCase()) != -1;
}
// C&P from codemirror.js...would be nice if this were visible to utilities.
function indexOf(collection, elt) {
if (collection.indexOf) return collection.indexOf(elt);
for (var i = 0, e = collection.length; i < e; ++i)
if (collection[i] == elt) return i;
return -1;
}
function completeEndTag(cm, pos, tagName) {
cm.replaceSelection('/' + tagName + '>');
cm.setCursor({line: pos.line, ch: pos.ch + tagName.length + 2 });
}
})();
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