| function escapeRegExp(string) { |
| return string.replace(/[.*+?^${}()|[\]\\]/g, '\\$&'); // $& means the whole matched string |
| } |
| |
| // 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 |
| } |