David Cormier
12 years ago
commit
5e70391bcf
@ -0,0 +1,208 @@ |
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/** |
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* Portable utilities for IRC. |
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*/ |
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|
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var IrcUtils = { |
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/** |
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* Get a new version of a nick list, sorted alphabetically by lowercase nick. |
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* |
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* @param nickList Original nick list |
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* @return Nick list sorted alphabetically by lowercase nick |
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*/ |
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_ciSearchNickList: function(nickList) { |
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var newList = []; |
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|
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nickList.forEach(function(nick) { |
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newList.push(nick); |
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}); |
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newList.sort(function(a, b) { |
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return a.toLowerCase() < b.toLowerCase() ? -1 : 1; |
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}); |
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return newList; |
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}, |
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/** |
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* Completes a single nick. |
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* |
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* @param candidate What to search for |
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* @param nickList Array of current nicks sorted for case insensitive searching |
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* @return Completed nick (null if not found) |
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*/ |
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_completeSingleNick: function(candidate, nickList) { |
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var foundNick = null; |
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nickList.some(function(nick) { |
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if (nick.toLowerCase().search(candidate.toLowerCase()) == 0) { |
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// found!
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foundNick = nick; |
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return true; |
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} |
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return false; |
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}); |
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return foundNick; |
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}, |
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/** |
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* Get the next nick when iterating nicks. |
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* |
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* @param iterCandidate First characters to look at |
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* @param currentNick Current selected nick |
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* @param nickList Array of current nicks sorted for case insensitive searching |
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* @return Next nick (may be the same) |
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*/ |
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_nextNick: function(iterCandidate, currentNick, nickList) { |
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var firstInGroup = null; |
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var matchingNicks = []; |
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var at = null; |
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var lcIterCandidate = iterCandidate.toLowerCase(); |
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var lcCurrentNick = currentNick.toLowerCase(); |
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// collect matching nicks
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for (var i = 0; i < nickList.length; ++i) { |
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var lcNick = nickList[i].toLowerCase(); |
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if (lcNick.search(lcIterCandidate) == 0) { |
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matchingNicks.push(nickList[i]); |
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if (lcCurrentNick == lcNick) { |
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at = matchingNicks.length - 1; |
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} |
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} else if (matchingNicks.length > 0) { |
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// end of group, no need to check after this
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break; |
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} |
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} |
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if (at == null || matchingNicks.length == 0) { |
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return currentNick; |
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} else { |
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++at; |
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if (at == matchingNicks.length) { |
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// cycle
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at = 0; |
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} |
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return matchingNicks[at]; |
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} |
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}, |
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/** |
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* Nicks tab completion. |
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* |
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* @param text Plain text (no colors) |
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* @param caretPos Current caret position (0 means before the first character) |
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* @param iterCandidate Current iteration candidate (null if not iterating) |
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* @param nickList Array of current nicks |
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* @param suf Custom suffix (at least one character, escaped for regex) |
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* @return Object with following properties: |
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* text: new complete replacement text |
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* caretPos: new caret position within new text |
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* foundNick: completed nick (or null if not possible) |
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* iterCandidate: current iterating candidate |
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*/ |
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completeNick: function(text, caretPos, iterCandidate, nickList, suf) { |
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var doIterate = (iterCandidate !== null); |
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if (suf === null) { |
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suf = ':'; |
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} |
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// new nick list to search in
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var searchNickList = IrcUtils._ciSearchNickList(nickList); |
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// text before and after caret
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var beforeCaret = text.substring(0, caretPos); |
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var afterCaret = text.substring(caretPos); |
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// default: don't change anything
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var ret = { |
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text: text, |
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caretPos: caretPos, |
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foundNick: null, |
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iterCandidate: null |
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}; |
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|
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// iterating nicks at the beginning?
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var m = beforeCaret.match(new RegExp('^([a-zA-Z0-9_\\\\\\[\\]{}^`|-]+)' + suf + ' $')); |
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if (m) { |
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if (doIterate) { |
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// try iterating
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var newNick = IrcUtils._nextNick(iterCandidate, m[1], searchNickList); |
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beforeCaret = newNick + suf + ' '; |
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return { |
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text: beforeCaret + afterCaret, |
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caretPos: beforeCaret.length, |
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foundNick: newNick, |
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iterCandidate: iterCandidate |
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}; |
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} else { |
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// if not iterating, don't do anything
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return ret; |
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} |
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} |
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// nick completion in the beginning?
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m = beforeCaret.match(/^([a-zA-Z0-9_\\\[\]{}^`|-]+)$/); |
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if (m) { |
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// try completing
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var newNick = IrcUtils._completeSingleNick(m[1], searchNickList); |
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if (newNick === null) { |
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// no match
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return ret; |
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} |
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beforeCaret = newNick + suf + ' '; |
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if (afterCaret[0] == ' ') { |
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// swallow first space after caret if any
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afterCaret = afterCaret.substring(1); |
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} |
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return { |
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text: beforeCaret + afterCaret, |
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caretPos: beforeCaret.length, |
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foundNick: newNick, |
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iterCandidate: m[1] |
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}; |
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} |
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|
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// iterating nicks in the middle?
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m = beforeCaret.match(/^(.* )([a-zA-Z0-9_\\\[\]{}^`|-]+) $/); |
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if (m) { |
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if (doIterate) { |
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// try iterating
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var newNick = IrcUtils._nextNick(iterCandidate, m[2], searchNickList); |
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beforeCaret = m[1] + newNick + ' '; |
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return { |
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text: beforeCaret + afterCaret, |
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caretPos: beforeCaret.length, |
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foundNick: newNick, |
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iterCandidate: iterCandidate |
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}; |
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} else { |
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// if not iterating, don't do anything
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return ret; |
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} |
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} |
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// nick completion elsewhere in the middle?
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m = beforeCaret.match(/^(.* )([a-zA-Z0-9_\\\[\]{}^`|-]+)$/); |
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if (m) { |
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// try completing
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var newNick = IrcUtils._completeSingleNick(m[2], searchNickList); |
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if (newNick === null) { |
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// no match
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return ret; |
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} |
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beforeCaret = m[1] + newNick + ' '; |
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if (afterCaret[0] == ' ') { |
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// swallow first space after caret if any
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afterCaret = afterCaret.substring(1); |
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} |
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return { |
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text: beforeCaret + afterCaret, |
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caretPos: beforeCaret.length, |
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foundNick: newNick, |
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iterCandidate: m[2] |
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}; |
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} |
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// completion not possible
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return ret; |
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} |
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}; |
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