Add javascript-linkify library, for linkifying zephyrs.

(imported from commit 90af0192b37bbebbf56d5e7c50f182485ddbca10)

zephyr/static/third/javascript-linkify/js/ba-linkify.js

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+/*!
+ * 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.
+
+window.linkify = (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!#$%&'*+/=?^_`{|}~-]+)*@" + HOST_OR_IP + QUERY_FRAG + "(?!\\w)",
+    
+    URI_RE = new RegExp( "(?:" + URI1 + "|" + URI2 + "|" + EMAIL + ")", "ig" ),
+    SCHEME_RE = new RegExp( "^" + SCHEME, "i" ),
+    
+    quotes = {
+      "'": "`",
+      '>': '<',
+      ')': '(',
+      ']': '[',
+      '}': '{',
+      '»': '«',
+      '›': '‹'
+    },
+    
+    default_options = {
+      callback: function( text, href ) {
+        return href ? '<a href="' + href + '" title="' + href + '">' + text + '</a>' : text;
+      },
+      punct_regexp: /(?:[!?.,:;'"]|(?:&|&amp;)(?:lt|gt|quot|apos|raquo|laquo|rsaquo|lsaquo);)$/
+    };
+  
+  return 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;
+  };
+  
+})();