mirror of
https://github.com/overleaf/overleaf.git
synced 2024-10-31 21:21:03 -04:00
216 lines
7.4 KiB
JavaScript
216 lines
7.4 KiB
JavaScript
|
/*!
|
|||
|
|
* JavaScript Linkify - v0.3 - 6/27/2009
|
|||
|
|
* http://benalman.com/projects/javascript-linkify/
|
|||
|
|
*
|
|||
|
|
* Copyright (c) 2009 "Cowboy" Ben Alman
|
|||
|
|
* Dual licensed under the MIT and GPL licenses.
|
|||
|
|
* http://benalman.com/about/license/
|
|||
|
|
*
|
|||
|
|
* Some regexps adapted from http://userscripts.org/scripts/review/7122
|
|||
|
|
*/
|
|||
|
|
|
|||
|
|
// Script: JavaScript Linkify: Process links in text!
|
|||
|
|
//
|
|||
|
|
// *Version: 0.3, Last updated: 6/27/2009*
|
|||
|
|
//
|
|||
|
|
// Project Home - http://benalman.com/projects/javascript-linkify/
|
|||
|
|
// GitHub - http://github.com/cowboy/javascript-linkify/
|
|||
|
|
// Source - http://github.com/cowboy/javascript-linkify/raw/master/ba-linkify.js
|
|||
|
|
// (Minified) - http://github.com/cowboy/javascript-linkify/raw/master/ba-linkify.min.js (2.8kb)
|
|||
|
|
//
|
|||
|
|
// About: License
|
|||
|
|
//
|
|||
|
|
// Copyright (c) 2009 "Cowboy" Ben Alman,
|
|||
|
|
// Dual licensed under the MIT and GPL licenses.
|
|||
|
|
// http://benalman.com/about/license/
|
|||
|
|
//
|
|||
|
|
// About: Examples
|
|||
|
|
//
|
|||
|
|
// This working example, complete with fully commented code, illustrates one way
|
|||
|
|
// in which this code can be used.
|
|||
|
|
//
|
|||
|
|
// Linkify - http://benalman.com/code/projects/javascript-linkify/examples/linkify/
|
|||
|
|
//
|
|||
|
|
// About: Support and Testing
|
|||
|
|
//
|
|||
|
|
// Information about what browsers this code has been tested in.
|
|||
|
|
//
|
|||
|
|
// Browsers Tested - Internet Explorer 6-8, Firefox 2-3.7, Safari 3-4, Chrome, Opera 9.6-10.
|
|||
|
|
//
|
|||
|
|
// About: Release History
|
|||
|
|
//
|
|||
|
|
// 0.3 - (6/27/2009) Initial release
|
|||
|
|
|
|||
|
|
// Function: linkify
|
|||
|
|
//
|
|||
|
|
// Turn text into linkified html.
|
|||
|
|
//
|
|||
|
|
// Usage:
|
|||
|
|
//
|
|||
|
|
// > var html = linkify( text [, options ] );
|
|||
|
|
//
|
|||
|
|
// Arguments:
|
|||
|
|
//
|
|||
|
|
// text - (String) Non-HTML text containing links to be parsed.
|
|||
|
|
// options - (Object) An optional object containing linkify parse options.
|
|||
|
|
//
|
|||
|
|
// Options:
|
|||
|
|
//
|
|||
|
|
// callback (Function) - If specified, this will be called once for each link-
|
|||
|
|
// or non-link-chunk with two arguments, text and href. If the chunk is
|
|||
|
|
// non-link, href will be omitted. If unspecified, the default linkification
|
|||
|
|
// callback is used.
|
|||
|
|
// punct_regexp (RegExp) - A RegExp that will be used to trim trailing
|
|||
|
|
// punctuation from links, instead of the default. If set to null, trailing
|
|||
|
|
// punctuation will not be trimmed.
|
|||
|
|
//
|
|||
|
|
// Returns:
|
|||
|
|
//
|
|||
|
|
// (String) An HTML string containing links.
|
|||
|
|
|
|||
|
|
require(["jquery"], function(){
|
|||
|
|
var
|
|||
|
|
SCHEME = "[a-z\\d.-]+://",
|
|||
|
|
IPV4 = "(?:(?:[0-9]|[1-9]\\d|1\\d{2}|2[0-4]\\d|25[0-5])\\.){3}(?:[0-9]|[1-9]\\d|1\\d{2}|2[0-4]\\d|25[0-5])",
|
|||
|
|
HOSTNAME = "(?:(?:[^\\s!@#$%^&*()_=+[\\]{}\\\\|;:'\",.<>/?]+)\\.)+",
|
|||
|
|
TLD = "(?:ac|ad|aero|ae|af|ag|ai|al|am|an|ao|aq|arpa|ar|asia|as|at|au|aw|ax|az|ba|bb|bd|be|bf|bg|bh|biz|bi|bj|bm|bn|bo|br|bs|bt|bv|bw|by|bz|cat|ca|cc|cd|cf|cg|ch|ci|ck|cl|cm|cn|coop|com|co|cr|cu|cv|cx|cy|cz|de|dj|dk|dm|do|dz|ec|edu|ee|eg|er|es|et|eu|fi|fj|fk|fm|fo|fr|ga|gb|gd|ge|gf|gg|gh|gi|gl|gm|gn|gov|gp|gq|gr|gs|gt|gu|gw|gy|hk|hm|hn|hr|ht|hu|id|ie|il|im|info|int|in|io|iq|ir|is|it|je|jm|jobs|jo|jp|ke|kg|kh|ki|km|kn|kp|kr|kw|ky|kz|la|lb|lc|li|lk|lr|ls|lt|lu|lv|ly|ma|mc|md|me|mg|mh|mil|mk|ml|mm|mn|mobi|mo|mp|mq|mr|ms|mt|museum|mu|mv|mw|mx|my|mz|name|na|nc|net|ne|nf|ng|ni|nl|no|np|nr|nu|nz|om|org|pa|pe|pf|pg|ph|pk|pl|pm|pn|pro|pr|ps|pt|pw|py|qa|re|ro|rs|ru|rw|sa|sb|sc|sd|se|sg|sh|si|sj|sk|sl|sm|sn|so|sr|st|su|sv|sy|sz|tc|td|tel|tf|tg|th|tj|tk|tl|tm|tn|to|tp|travel|tr|tt|tv|tw|tz|ua|ug|uk|um|us|uy|uz|va|vc|ve|vg|vi|vn|vu|wf|ws|xn--0zwm56d|xn--11b5bs3a9aj6g|xn--80akhbyknj4f|xn--9t4b11yi5a|xn--deba0ad|xn--g6w251d|xn--hgbk6aj7f53bba|xn--hlcj6aya9esc7a|xn--jxalpdlp|xn--kgbechtv|xn--zckzah|ye|yt|yu|za|zm|zw)",
|
|||
|
|
HOST_OR_IP = "(?:" + HOSTNAME + TLD + "|" + IPV4 + ")",
|
|||
|
|
PATH = "(?:[;/][^#?<>\\s]*)?",
|
|||
|
|
QUERY_FRAG = "(?:\\?[^#<>\\s]*)?(?:#[^<>\\s]*)?",
|
|||
|
|
URI1 = "\\b" + SCHEME + "[^<>\\s]+",
|
|||
|
|
URI2 = "\\b" + HOST_OR_IP + PATH + QUERY_FRAG + "(?!\\w)",
|
|||
|
|
|
|||
|
|
MAILTO = "mailto:",
|
|||
|
|
EMAIL = "(?:" + MAILTO + ")?[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*@" + HOST_OR_IP + QUERY_FRAG + "(?!\\w)",
|
|||
|
|
|
|||
|
|
URI_RE = new RegExp( "(?:" + URI1 + "|" + URI2 + "|" + EMAIL + ")", "ig" ),
|
|||
|
|
SCHEME_RE = new RegExp( "^" + SCHEME, "i" ),
|
|||
|
|
|
|||
|
|
quotes = {
|
|||
|
|
"'": "`",
|
|||
|
|
'>': '<',
|
|||
|
|
')': '(',
|
|||
|
|
']': '[',
|
|||
|
|
'}': '{',
|
|||
|
|
'»': '«',
|
|||
|
|
'›': '‹'
|
|||
|
|
},
|
|||
|
|
|
|||
|
|
default_options = {
|
|||
|
|
callback: function( text, href ) {
|
|||
|
|
return href ? '<a href="' + href + '" title="' + href + '">' + text + '</a>' : text;
|
|||
|
|
},
|
|||
|
|
punct_regexp: /(?:[!?.,:;'"]|(?:&|&)(?:lt|gt|quot|apos|raquo|laquo|rsaquo|lsaquo);)$/
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
window.linkify = function( txt, options ) {
|
|||
|
|
options = options || {};
|
|||
|
|
|
|||
|
|
// Temp variables.
|
|||
|
|
var arr,
|
|||
|
|
i,
|
|||
|
|
link,
|
|||
|
|
href,
|
|||
|
|
|
|||
|
|
// Output HTML.
|
|||
|
|
html = '',
|
|||
|
|
|
|||
|
|
// Store text / link parts, in order, for re-combination.
|
|||
|
|
parts = [],
|
|||
|
|
|
|||
|
|
// Used for keeping track of indices in the text.
|
|||
|
|
idx_prev,
|
|||
|
|
idx_last,
|
|||
|
|
idx,
|
|||
|
|
link_last,
|
|||
|
|
|
|||
|
|
// Used for trimming trailing punctuation and quotes from links.
|
|||
|
|
matches_begin,
|
|||
|
|
matches_end,
|
|||
|
|
quote_begin,
|
|||
|
|
quote_end;
|
|||
|
|
|
|||
|
|
// Initialize options.
|
|||
|
|
for ( i in default_options ) {
|
|||
|
|
if ( options[ i ] === undefined ) {
|
|||
|
|
options[ i ] = default_options[ i ];
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// Find links.
|
|||
|
|
while ( arr = URI_RE.exec( txt ) ) {
|
|||
|
|
|
|||
|
|
link = arr[0];
|
|||
|
|
idx_last = URI_RE.lastIndex;
|
|||
|
|
idx = idx_last - link.length;
|
|||
|
|
|
|||
|
|
// Not a link if preceded by certain characters.
|
|||
|
|
if ( /[\/:]/.test( txt.charAt( idx - 1 ) ) ) {
|
|||
|
|
continue;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// Trim trailing punctuation.
|
|||
|
|
do {
|
|||
|
|
// If no changes are made, we don't want to loop forever!
|
|||
|
|
link_last = link;
|
|||
|
|
|
|||
|
|
quote_end = link.substr( -1 )
|
|||
|
|
quote_begin = quotes[ quote_end ];
|
|||
|
|
|
|||
|
|
// Ending quote character?
|
|||
|
|
if ( quote_begin ) {
|
|||
|
|
matches_begin = link.match( new RegExp( '\\' + quote_begin + '(?!$)', 'g' ) );
|
|||
|
|
matches_end = link.match( new RegExp( '\\' + quote_end, 'g' ) );
|
|||
|
|
|
|||
|
|
// If quotes are unbalanced, remove trailing quote character.
|
|||
|
|
if ( ( matches_begin ? matches_begin.length : 0 ) < ( matches_end ? matches_end.length : 0 ) ) {
|
|||
|
|
link = link.substr( 0, link.length - 1 );
|
|||
|
|
idx_last--;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// Ending non-quote punctuation character?
|
|||
|
|
if ( options.punct_regexp ) {
|
|||
|
|
link = link.replace( options.punct_regexp, function(a){
|
|||
|
|
idx_last -= a.length;
|
|||
|
|
return '';
|
|||
|
|
});
|
|||
|
|
}
|
|||
|
|
} while ( link.length && link !== link_last );
|
|||
|
|
|
|||
|
|
href = link;
|
|||
|
|
|
|||
|
|
// Add appropriate protocol to naked links.
|
|||
|
|
if ( !SCHEME_RE.test( href ) ) {
|
|||
|
|
href = ( href.indexOf( '@' ) !== -1 ? ( !href.indexOf( MAILTO ) ? '' : MAILTO )
|
|||
|
|
: !href.indexOf( 'irc.' ) ? 'irc://'
|
|||
|
|
: !href.indexOf( 'ftp.' ) ? 'ftp://'
|
|||
|
|
: 'http://' )
|
|||
|
|
+ href;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// Push preceding non-link text onto the array.
|
|||
|
|
if ( idx_prev != idx ) {
|
|||
|
|
parts.push([ txt.slice( idx_prev, idx ) ]);
|
|||
|
|
idx_prev = idx_last;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// Push massaged link onto the array
|
|||
|
|
parts.push([ link, href ]);
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
// Push remaining non-link text onto the array.
|
|||
|
|
parts.push([ txt.substr( idx_prev ) ]);
|
|||
|
|
|
|||
|
|
// Process the array items.
|
|||
|
|
for ( i = 0; i < parts.length; i++ ) {
|
|||
|
|
html += options.callback.apply( window, parts[i] );
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// In case of catastrophic failure, return the original text;
|
|||
|
|
return html || txt;
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
})();
|
|||
|
|
|