74 lines
2.6 KiB
JavaScript
74 lines
2.6 KiB
JavaScript
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function escapeRegExp(string) {
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return string.replace(/[.*+?^${}()|[\]\\]/g, '\\$&'); // $& means the whole matched string
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}
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/**
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* Removes excluded text from a Node.
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*
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* @param {Node} target Node to filter.
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* @param {string} exclude CSS selector of nodes to exclude.
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* @returns {DOMString} Text from `target` with text removed.
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*/
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export function filterText(target, exclude) {
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const clone = target.cloneNode(true); // clone as to not modify the live DOM
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if (exclude) {
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// remove excluded nodes
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clone.querySelectorAll(exclude).forEach(node => node.remove());
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}
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return clone.innerText;
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}
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// Callback when a copy button is clicked. Will be passed the node that was clicked
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// should then grab the text and replace pieces of text that shouldn't be used in output
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export function formatCopyText(textContent, copybuttonPromptText, isRegexp = false, onlyCopyPromptLines = true, removePrompts = true, copyEmptyLines = true, lineContinuationChar = "", hereDocDelim = "") {
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var regexp;
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var match;
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// Do we check for line continuation characters and "HERE-documents"?
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var useLineCont = !!lineContinuationChar
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var useHereDoc = !!hereDocDelim
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// create regexp to capture prompt and remaining line
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if (isRegexp) {
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regexp = new RegExp('^(' + copybuttonPromptText + ')(.*)')
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} else {
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regexp = new RegExp('^(' + escapeRegExp(copybuttonPromptText) + ')(.*)')
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}
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const outputLines = [];
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var promptFound = false;
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var gotLineCont = false;
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var gotHereDoc = false;
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const lineGotPrompt = [];
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for (const line of textContent.split('\n')) {
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match = line.match(regexp)
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if (match || gotLineCont || gotHereDoc) {
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promptFound = regexp.test(line)
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lineGotPrompt.push(promptFound)
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if (removePrompts && promptFound) {
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outputLines.push(match[2])
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} else {
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outputLines.push(line)
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}
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gotLineCont = line.endsWith(lineContinuationChar) & useLineCont
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if (line.includes(hereDocDelim) & useHereDoc)
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gotHereDoc = !gotHereDoc
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} else if (!onlyCopyPromptLines) {
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outputLines.push(line)
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} else if (copyEmptyLines && line.trim() === '') {
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outputLines.push(line)
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}
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}
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// If no lines with the prompt were found then just use original lines
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if (lineGotPrompt.some(v => v === true)) {
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textContent = outputLines.join('\n');
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}
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// Remove a trailing newline to avoid auto-running when pasting
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if (textContent.endsWith("\n")) {
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textContent = textContent.slice(0, -1)
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}
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return textContent
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}
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