diff options
author | Wu Cheng-Han | 2015-05-04 15:53:29 +0800 |
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committer | Wu Cheng-Han | 2015-05-04 15:53:29 +0800 |
commit | 4b0ca55eb79e963523eb6c8197825e9e8ae904e2 (patch) | |
tree | 574f3923af77b37b41dbf1b00bcd7827ef724a28 /public/vendor/codemirror/addon/wrap | |
parent | 61eb11d23c65c9e5c493c67d055f785cbec139e2 (diff) |
First commit, version 0.2.7
Diffstat (limited to 'public/vendor/codemirror/addon/wrap')
-rwxr-xr-x | public/vendor/codemirror/addon/wrap/hardwrap.js | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/public/vendor/codemirror/addon/wrap/hardwrap.js b/public/vendor/codemirror/addon/wrap/hardwrap.js new file mode 100755 index 00000000..fe9b4dd6 --- /dev/null +++ b/public/vendor/codemirror/addon/wrap/hardwrap.js @@ -0,0 +1,139 @@ +// CodeMirror, copyright (c) by Marijn Haverbeke and others +// Distributed under an MIT license: http://codemirror.net/LICENSE + +(function(mod) { + if (typeof exports == "object" && typeof module == "object") // CommonJS + mod(require("../../lib/codemirror")); + else if (typeof define == "function" && define.amd) // AMD + define(["../../lib/codemirror"], mod); + else // Plain browser env + mod(CodeMirror); +})(function(CodeMirror) { + "use strict"; + + var Pos = CodeMirror.Pos; + + function findParagraph(cm, pos, options) { + var startRE = options.paragraphStart || cm.getHelper(pos, "paragraphStart"); + for (var start = pos.line, first = cm.firstLine(); start > first; --start) { + var line = cm.getLine(start); + if (startRE && startRE.test(line)) break; + if (!/\S/.test(line)) { ++start; break; } + } + var endRE = options.paragraphEnd || cm.getHelper(pos, "paragraphEnd"); + for (var end = pos.line + 1, last = cm.lastLine(); end <= last; ++end) { + var line = cm.getLine(end); + if (endRE && endRE.test(line)) { ++end; break; } + if (!/\S/.test(line)) break; + } + return {from: start, to: end}; + } + + function findBreakPoint(text, column, wrapOn, killTrailingSpace) { + for (var at = column; at > 0; --at) + if (wrapOn.test(text.slice(at - 1, at + 1))) break; + if (at == 0) at = column; + var endOfText = at; + if (killTrailingSpace) + while (text.charAt(endOfText - 1) == " ") --endOfText; + return {from: endOfText, to: at}; + } + + function wrapRange(cm, from, to, options) { + from = cm.clipPos(from); to = cm.clipPos(to); + var column = options.column || 80; + var wrapOn = options.wrapOn || /\s\S|-[^\.\d]/; + var killTrailing = options.killTrailingSpace !== false; + var changes = [], curLine = "", curNo = from.line; + var lines = cm.getRange(from, to, false); + if (!lines.length) return null; + var leadingSpace = lines[0].match(/^[ \t]*/)[0]; + + for (var i = 0; i < lines.length; ++i) { + var text = lines[i], oldLen = curLine.length, spaceInserted = 0; + if (curLine && text && !wrapOn.test(curLine.charAt(curLine.length - 1) + text.charAt(0))) { + curLine += " "; + spaceInserted = 1; + } + var spaceTrimmed = ""; + if (i) { + spaceTrimmed = text.match(/^\s*/)[0]; + text = text.slice(spaceTrimmed.length); + } + curLine += text; + if (i) { + var firstBreak = curLine.length > column && leadingSpace == spaceTrimmed && + findBreakPoint(curLine, column, wrapOn, killTrailing); + // If this isn't broken, or is broken at a different point, remove old break + if (!firstBreak || firstBreak.from != oldLen || firstBreak.to != oldLen + spaceInserted) { + changes.push({text: [spaceInserted ? " " : ""], + from: Pos(curNo, oldLen), + to: Pos(curNo + 1, spaceTrimmed.length)}); + } else { + curLine = leadingSpace + text; + ++curNo; + } + } + while (curLine.length > column) { + var bp = findBreakPoint(curLine, column, wrapOn, killTrailing); + changes.push({text: ["", leadingSpace], + from: Pos(curNo, bp.from), + to: Pos(curNo, bp.to)}); + curLine = leadingSpace + curLine.slice(bp.to); + ++curNo; + } + } + if (changes.length) cm.operation(function() { + for (var i = 0; i < changes.length; ++i) { + var change = changes[i]; + cm.replaceRange(change.text, change.from, change.to); + } + }); + return changes.length ? {from: changes[0].from, to: CodeMirror.changeEnd(changes[changes.length - 1])} : null; + } + + CodeMirror.defineExtension("wrapParagraph", function(pos, options) { + options = options || {}; + if (!pos) pos = this.getCursor(); + var para = findParagraph(this, pos, options); + return wrapRange(this, Pos(para.from, 0), Pos(para.to - 1), options); + }); + + CodeMirror.commands.wrapLines = function(cm) { + cm.operation(function() { + var ranges = cm.listSelections(), at = cm.lastLine() + 1; + for (var i = ranges.length - 1; i >= 0; i--) { + var range = ranges[i], span; + if (range.empty()) { + var para = findParagraph(cm, range.head, {}); + span = {from: Pos(para.from, 0), to: Pos(para.to - 1)}; + } else { + span = {from: range.from(), to: range.to()}; + } + if (span.to.line >= at) continue; + at = span.from.line; + wrapRange(cm, span.from, span.to, {}); + } + }); + }; + + CodeMirror.defineExtension("wrapRange", function(from, to, options) { + return wrapRange(this, from, to, options || {}); + }); + + CodeMirror.defineExtension("wrapParagraphsInRange", function(from, to, options) { + options = options || {}; + var cm = this, paras = []; + for (var line = from.line; line <= to.line;) { + var para = findParagraph(cm, Pos(line, 0), options); + paras.push(para); + line = para.to; + } + var madeChange = false; + if (paras.length) cm.operation(function() { + for (var i = paras.length - 1; i >= 0; --i) + madeChange = madeChange || wrapRange(cm, Pos(paras[i].from, 0), Pos(paras[i].to - 1), options); + }); + return madeChange; + }); +}); |