TiddlyWiki5/plugins/tiddlywiki/codemirror-closebrackets/files/addon/edit/matchbrackets.js

3 wiersze
2.9 KiB
JavaScript
Executable File

// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: http://codemirror.net/LICENSE
!function(t){"object"==typeof exports&&"object"==typeof module?t(require("../../lib/codemirror")):"function"==typeof define&&define.amd?define(["../../lib/codemirror"],t):t(CodeMirror)}(function(t){var e=/MSIE \d/.test(navigator.userAgent)&&(null==document.documentMode||document.documentMode<8),n=t.Pos,r={"(":")>",")":"(<","[":"]>","]":"[<","{":"}>","}":"{<"};function i(t,e,i){var c=t.getLineHandle(e.line),o=e.ch-1,l=i&&i.afterCursor;null==l&&(l=/(^| )cm-fat-cursor($| )/.test(t.getWrapperElement().className));var h=!l&&o>=0&&r[c.text.charAt(o)]||r[c.text.charAt(++o)];if(!h)return null;var s=">"==h.charAt(1)?1:-1;if(i&&i.strict&&s>0!=(o==e.ch))return null;var u=t.getTokenTypeAt(n(e.line,o+1)),f=a(t,n(e.line,o+(s>0?1:0)),s,u||null,i);return null==f?null:{from:n(e.line,o),to:f&&f.pos,match:f&&f.ch==h.charAt(0),forward:s>0}}function a(t,e,i,a,c){for(var o=c&&c.maxScanLineLength||1e4,l=c&&c.maxScanLines||1e3,h=[],s=c&&c.bracketRegex?c.bracketRegex:/[(){}[\]]/,u=i>0?Math.min(e.line+l,t.lastLine()+1):Math.max(t.firstLine()-1,e.line-l),f=e.line;f!=u;f+=i){var m=t.getLine(f);if(m){var g=i>0?0:m.length-1,d=i>0?m.length:-1;if(!(m.length>o))for(f==e.line&&(g=e.ch-(i<0?1:0));g!=d;g+=i){var k=m.charAt(g);if(s.test(k)&&(void 0===a||t.getTokenTypeAt(n(f,g+1))==a))if(">"==r[k].charAt(1)==i>0)h.push(k);else{if(!h.length)return{pos:n(f,g),ch:k};h.pop()}}}}return f-i!=(i>0?t.lastLine():t.firstLine())&&null}function c(t,r,a){for(var c=t.state.matchBrackets.maxHighlightLineLength||1e3,o=[],l=t.listSelections(),h=0;h<l.length;h++){var s=l[h].empty()&&i(t,l[h].head,a);if(s&&t.getLine(s.from.line).length<=c){var u=s.match?"CodeMirror-matchingbracket":"CodeMirror-nonmatchingbracket";o.push(t.markText(s.from,n(s.from.line,s.from.ch+1),{className:u})),s.to&&t.getLine(s.to.line).length<=c&&o.push(t.markText(s.to,n(s.to.line,s.to.ch+1),{className:u}))}}if(o.length){e&&t.state.focused&&t.focus();var f=function(){t.operation(function(){for(var t=0;t<o.length;t++)o[t].clear()})};if(!r)return f;setTimeout(f,800)}}function o(t){t.operation(function(){t.state.matchBrackets.currentlyHighlighted&&(t.state.matchBrackets.currentlyHighlighted(),t.state.matchBrackets.currentlyHighlighted=null),t.state.matchBrackets.currentlyHighlighted=c(t,!1,t.state.matchBrackets)})}t.defineOption("matchBrackets",!1,function(e,n,r){r&&r!=t.Init&&(e.off("cursorActivity",o),e.state.matchBrackets&&e.state.matchBrackets.currentlyHighlighted&&(e.state.matchBrackets.currentlyHighlighted(),e.state.matchBrackets.currentlyHighlighted=null)),n&&(e.state.matchBrackets="object"==typeof n?n:{},e.on("cursorActivity",o))}),t.defineExtension("matchBrackets",function(){c(this,!0)}),t.defineExtension("findMatchingBracket",function(t,e,n){return(n||"boolean"==typeof e)&&(n?(n.strict=e,e=n):e=e?{strict:!0}:null),i(this,t,e)}),t.defineExtension("scanForBracket",function(t,e,n,r){return a(this,t,e,n,r)})});