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https://github.com/Jermolene/TiddlyWiki5
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48 lines
1.9 KiB
JavaScript
48 lines
1.9 KiB
JavaScript
/*\
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title: $:/core/modules/editor/operations/text/wrap-lines.js
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type: application/javascript
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module-type: texteditoroperation
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Text editor operation to wrap the selected lines with a prefix and suffix
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\*/
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(function(){
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/*jslint node: true, browser: true */
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/*global $tw: false */
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"use strict";
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exports["wrap-lines"] = function(event,operation) {
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var prefix = event.paramObject.prefix || "",
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suffix = event.paramObject.suffix || "";
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if($tw.utils.endsWith(operation.text.substring(0,operation.selStart), prefix + "\n") &&
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$tw.utils.startsWith(operation.text.substring(operation.selEnd), "\n" + suffix)) {
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// Selected text is already surrounded by prefix and suffix: Remove them
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// Cut selected text plus prefix and suffix
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operation.cutStart = operation.selStart - (prefix.length + 1);
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operation.cutEnd = operation.selEnd + suffix.length + 1;
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// Also cut the following newline (if there is any)
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if (operation.text[operation.cutEnd] === "\n") {
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operation.cutEnd++;
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}
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// Replace with selection
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operation.replacement = operation.text.substring(operation.selStart,operation.selEnd);
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// Select text that was in between prefix and suffix
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operation.newSelStart = operation.cutStart;
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operation.newSelEnd = operation.selEnd - (prefix.length + 1);
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} else {
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// Cut just past the preceding line break, or the start of the text
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operation.cutStart = $tw.utils.findPrecedingLineBreak(operation.text,operation.selStart);
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// Cut to just past the following line break, or to the end of the text
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operation.cutEnd = $tw.utils.findFollowingLineBreak(operation.text,operation.selEnd);
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// Add the prefix and suffix
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operation.replacement = prefix + "\n" +
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operation.text.substring(operation.cutStart,operation.cutEnd) + "\n" +
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suffix + "\n";
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operation.newSelStart = operation.cutStart + prefix.length + 1;
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operation.newSelEnd = operation.newSelStart + (operation.cutEnd - operation.cutStart);
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}
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};
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})();
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