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comparison .cms/lib/codemirror/addon/wrap/hardwrap.js @ 0:78edf6b517a0 draft
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author | Coffee CMS <info@coffee-cms.ru> |
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date | Fri, 11 Oct 2024 22:40:23 +0000 |
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-1:000000000000 | 0:78edf6b517a0 |
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1 // CodeMirror, copyright (c) by Marijn Haverbeke and others | |
2 // Distributed under an MIT license: https://codemirror.net/5/LICENSE | |
3 | |
4 (function(mod) { | |
5 if (typeof exports == "object" && typeof module == "object") // CommonJS | |
6 mod(require("../../lib/codemirror")); | |
7 else if (typeof define == "function" && define.amd) // AMD | |
8 define(["../../lib/codemirror"], mod); | |
9 else // Plain browser env | |
10 mod(CodeMirror); | |
11 })(function(CodeMirror) { | |
12 "use strict"; | |
13 | |
14 var Pos = CodeMirror.Pos; | |
15 | |
16 function findParagraph(cm, pos, options) { | |
17 var startRE = options.paragraphStart || cm.getHelper(pos, "paragraphStart"); | |
18 for (var start = pos.line, first = cm.firstLine(); start > first; --start) { | |
19 var line = cm.getLine(start); | |
20 if (startRE && startRE.test(line)) break; | |
21 if (!/\S/.test(line)) { ++start; break; } | |
22 } | |
23 var endRE = options.paragraphEnd || cm.getHelper(pos, "paragraphEnd"); | |
24 for (var end = pos.line + 1, last = cm.lastLine(); end <= last; ++end) { | |
25 var line = cm.getLine(end); | |
26 if (endRE && endRE.test(line)) { ++end; break; } | |
27 if (!/\S/.test(line)) break; | |
28 } | |
29 return {from: start, to: end}; | |
30 } | |
31 | |
32 function findBreakPoint(text, column, wrapOn, killTrailingSpace, forceBreak) { | |
33 var at = column | |
34 while (at < text.length && text.charAt(at) == " ") at++ | |
35 for (; at > 0; --at) | |
36 if (wrapOn.test(text.slice(at - 1, at + 1))) break; | |
37 | |
38 if (!forceBreak && at <= text.match(/^[ \t]*/)[0].length) { | |
39 // didn't find a break point before column, in non-forceBreak mode try to | |
40 // find one after 'column'. | |
41 for (at = column + 1; at < text.length - 1; ++at) { | |
42 if (wrapOn.test(text.slice(at - 1, at + 1))) break; | |
43 } | |
44 } | |
45 | |
46 for (var first = true;; first = false) { | |
47 var endOfText = at; | |
48 if (killTrailingSpace) | |
49 while (text.charAt(endOfText - 1) == " ") --endOfText; | |
50 if (endOfText == 0 && first) at = column; | |
51 else return {from: endOfText, to: at}; | |
52 } | |
53 } | |
54 | |
55 function wrapRange(cm, from, to, options) { | |
56 from = cm.clipPos(from); to = cm.clipPos(to); | |
57 var column = options.column || 80; | |
58 var wrapOn = options.wrapOn || /\s\S|-[^\.\d]/; | |
59 var forceBreak = options.forceBreak !== false; | |
60 var killTrailing = options.killTrailingSpace !== false; | |
61 var changes = [], curLine = "", curNo = from.line; | |
62 var lines = cm.getRange(from, to, false); | |
63 if (!lines.length) return null; | |
64 var leadingSpace = lines[0].match(/^[ \t]*/)[0]; | |
65 if (leadingSpace.length >= column) column = leadingSpace.length + 1 | |
66 | |
67 for (var i = 0; i < lines.length; ++i) { | |
68 var text = lines[i], oldLen = curLine.length, spaceInserted = 0; | |
69 if (curLine && text && !wrapOn.test(curLine.charAt(curLine.length - 1) + text.charAt(0))) { | |
70 curLine += " "; | |
71 spaceInserted = 1; | |
72 } | |
73 var spaceTrimmed = ""; | |
74 if (i) { | |
75 spaceTrimmed = text.match(/^\s*/)[0]; | |
76 text = text.slice(spaceTrimmed.length); | |
77 } | |
78 curLine += text; | |
79 if (i) { | |
80 var firstBreak = curLine.length > column && leadingSpace == spaceTrimmed && | |
81 findBreakPoint(curLine, column, wrapOn, killTrailing, forceBreak); | |
82 // If this isn't broken, or is broken at a different point, remove old break | |
83 if (!firstBreak || firstBreak.from != oldLen || firstBreak.to != oldLen + spaceInserted) { | |
84 changes.push({text: [spaceInserted ? " " : ""], | |
85 from: Pos(curNo, oldLen), | |
86 to: Pos(curNo + 1, spaceTrimmed.length)}); | |
87 } else { | |
88 curLine = leadingSpace + text; | |
89 ++curNo; | |
90 } | |
91 } | |
92 while (curLine.length > column) { | |
93 var bp = findBreakPoint(curLine, column, wrapOn, killTrailing, forceBreak); | |
94 if (bp.from != bp.to || | |
95 forceBreak && leadingSpace !== curLine.slice(0, bp.to)) { | |
96 changes.push({text: ["", leadingSpace], | |
97 from: Pos(curNo, bp.from), | |
98 to: Pos(curNo, bp.to)}); | |
99 curLine = leadingSpace + curLine.slice(bp.to); | |
100 ++curNo; | |
101 } else { | |
102 break; | |
103 } | |
104 } | |
105 } | |
106 if (changes.length) cm.operation(function() { | |
107 for (var i = 0; i < changes.length; ++i) { | |
108 var change = changes[i]; | |
109 if (change.text || CodeMirror.cmpPos(change.from, change.to)) | |
110 cm.replaceRange(change.text, change.from, change.to); | |
111 } | |
112 }); | |
113 return changes.length ? {from: changes[0].from, to: CodeMirror.changeEnd(changes[changes.length - 1])} : null; | |
114 } | |
115 | |
116 CodeMirror.defineExtension("wrapParagraph", function(pos, options) { | |
117 options = options || {}; | |
118 if (!pos) pos = this.getCursor(); | |
119 var para = findParagraph(this, pos, options); | |
120 return wrapRange(this, Pos(para.from, 0), Pos(para.to - 1), options); | |
121 }); | |
122 | |
123 CodeMirror.commands.wrapLines = function(cm) { | |
124 cm.operation(function() { | |
125 var ranges = cm.listSelections(), at = cm.lastLine() + 1; | |
126 for (var i = ranges.length - 1; i >= 0; i--) { | |
127 var range = ranges[i], span; | |
128 if (range.empty()) { | |
129 var para = findParagraph(cm, range.head, {}); | |
130 span = {from: Pos(para.from, 0), to: Pos(para.to - 1)}; | |
131 } else { | |
132 span = {from: range.from(), to: range.to()}; | |
133 } | |
134 if (span.to.line >= at) continue; | |
135 at = span.from.line; | |
136 wrapRange(cm, span.from, span.to, {}); | |
137 } | |
138 }); | |
139 }; | |
140 | |
141 CodeMirror.defineExtension("wrapRange", function(from, to, options) { | |
142 return wrapRange(this, from, to, options || {}); | |
143 }); | |
144 | |
145 CodeMirror.defineExtension("wrapParagraphsInRange", function(from, to, options) { | |
146 options = options || {}; | |
147 var cm = this, paras = []; | |
148 for (var line = from.line; line <= to.line;) { | |
149 var para = findParagraph(cm, Pos(line, 0), options); | |
150 paras.push(para); | |
151 line = para.to; | |
152 } | |
153 var madeChange = false; | |
154 if (paras.length) cm.operation(function() { | |
155 for (var i = paras.length - 1; i >= 0; --i) | |
156 madeChange = madeChange || wrapRange(cm, Pos(paras[i].from, 0), Pos(paras[i].to - 1), options); | |
157 }); | |
158 return madeChange; | |
159 }); | |
160 }); |