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comparison .cms/lib/codemirror/addon/wrap/hardwrap.js @ 0:78edf6b517a0 draft

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24.10
author Coffee CMS <info@coffee-cms.ru>
date Fri, 11 Oct 2024 22:40:23 +0000
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-1:000000000000 0:78edf6b517a0
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 });