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Reticulum/docs/manual/_static/copybutton_funcs.js
2023-06-29 16:52:06 +02:00

74 lines
2.6 KiB
JavaScript

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