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-rwxr-xr-xnode_modules/wrap-ansi/index.js216
1 files changed, 216 insertions, 0 deletions
diff --git a/node_modules/wrap-ansi/index.js b/node_modules/wrap-ansi/index.js
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+'use strict';
+const stringWidth = require('string-width');
+const stripAnsi = require('strip-ansi');
+const ansiStyles = require('ansi-styles');
+
+const ESCAPES = new Set([
+ '\u001B',
+ '\u009B'
+]);
+
+const END_CODE = 39;
+
+const ANSI_ESCAPE_BELL = '\u0007';
+const ANSI_CSI = '[';
+const ANSI_OSC = ']';
+const ANSI_SGR_TERMINATOR = 'm';
+const ANSI_ESCAPE_LINK = `${ANSI_OSC}8;;`;
+
+const wrapAnsi = code => `${ESCAPES.values().next().value}${ANSI_CSI}${code}${ANSI_SGR_TERMINATOR}`;
+const wrapAnsiHyperlink = uri => `${ESCAPES.values().next().value}${ANSI_ESCAPE_LINK}${uri}${ANSI_ESCAPE_BELL}`;
+
+// Calculate the length of words split on ' ', ignoring
+// the extra characters added by ansi escape codes
+const wordLengths = string => string.split(' ').map(character => stringWidth(character));
+
+// Wrap a long word across multiple rows
+// Ansi escape codes do not count towards length
+const wrapWord = (rows, word, columns) => {
+ const characters = [...word];
+
+ let isInsideEscape = false;
+ let isInsideLinkEscape = false;
+ let visible = stringWidth(stripAnsi(rows[rows.length - 1]));
+
+ for (const [index, character] of characters.entries()) {
+ const characterLength = stringWidth(character);
+
+ if (visible + characterLength <= columns) {
+ rows[rows.length - 1] += character;
+ } else {
+ rows.push(character);
+ visible = 0;
+ }
+
+ if (ESCAPES.has(character)) {
+ isInsideEscape = true;
+ isInsideLinkEscape = characters.slice(index + 1).join('').startsWith(ANSI_ESCAPE_LINK);
+ }
+
+ if (isInsideEscape) {
+ if (isInsideLinkEscape) {
+ if (character === ANSI_ESCAPE_BELL) {
+ isInsideEscape = false;
+ isInsideLinkEscape = false;
+ }
+ } else if (character === ANSI_SGR_TERMINATOR) {
+ isInsideEscape = false;
+ }
+
+ continue;
+ }
+
+ visible += characterLength;
+
+ if (visible === columns && index < characters.length - 1) {
+ rows.push('');
+ visible = 0;
+ }
+ }
+
+ // It's possible that the last row we copy over is only
+ // ansi escape characters, handle this edge-case
+ if (!visible && rows[rows.length - 1].length > 0 && rows.length > 1) {
+ rows[rows.length - 2] += rows.pop();
+ }
+};
+
+// Trims spaces from a string ignoring invisible sequences
+const stringVisibleTrimSpacesRight = string => {
+ const words = string.split(' ');
+ let last = words.length;
+
+ while (last > 0) {
+ if (stringWidth(words[last - 1]) > 0) {
+ break;
+ }
+
+ last--;
+ }
+
+ if (last === words.length) {
+ return string;
+ }
+
+ return words.slice(0, last).join(' ') + words.slice(last).join('');
+};
+
+// The wrap-ansi module can be invoked in either 'hard' or 'soft' wrap mode
+//
+// 'hard' will never allow a string to take up more than columns characters
+//
+// 'soft' allows long words to expand past the column length
+const exec = (string, columns, options = {}) => {
+ if (options.trim !== false && string.trim() === '') {
+ return '';
+ }
+
+ let returnValue = '';
+ let escapeCode;
+ let escapeUrl;
+
+ const lengths = wordLengths(string);
+ let rows = [''];
+
+ for (const [index, word] of string.split(' ').entries()) {
+ if (options.trim !== false) {
+ rows[rows.length - 1] = rows[rows.length - 1].trimStart();
+ }
+
+ let rowLength = stringWidth(rows[rows.length - 1]);
+
+ if (index !== 0) {
+ if (rowLength >= columns && (options.wordWrap === false || options.trim === false)) {
+ // If we start with a new word but the current row length equals the length of the columns, add a new row
+ rows.push('');
+ rowLength = 0;
+ }
+
+ if (rowLength > 0 || options.trim === false) {
+ rows[rows.length - 1] += ' ';
+ rowLength++;
+ }
+ }
+
+ // In 'hard' wrap mode, the length of a line is never allowed to extend past 'columns'
+ if (options.hard && lengths[index] > columns) {
+ const remainingColumns = (columns - rowLength);
+ const breaksStartingThisLine = 1 + Math.floor((lengths[index] - remainingColumns - 1) / columns);
+ const breaksStartingNextLine = Math.floor((lengths[index] - 1) / columns);
+ if (breaksStartingNextLine < breaksStartingThisLine) {
+ rows.push('');
+ }
+
+ wrapWord(rows, word, columns);
+ continue;
+ }
+
+ if (rowLength + lengths[index] > columns && rowLength > 0 && lengths[index] > 0) {
+ if (options.wordWrap === false && rowLength < columns) {
+ wrapWord(rows, word, columns);
+ continue;
+ }
+
+ rows.push('');
+ }
+
+ if (rowLength + lengths[index] > columns && options.wordWrap === false) {
+ wrapWord(rows, word, columns);
+ continue;
+ }
+
+ rows[rows.length - 1] += word;
+ }
+
+ if (options.trim !== false) {
+ rows = rows.map(stringVisibleTrimSpacesRight);
+ }
+
+ const pre = [...rows.join('\n')];
+
+ for (const [index, character] of pre.entries()) {
+ returnValue += character;
+
+ if (ESCAPES.has(character)) {
+ const {groups} = new RegExp(`(?:\\${ANSI_CSI}(?<code>\\d+)m|\\${ANSI_ESCAPE_LINK}(?<uri>.*)${ANSI_ESCAPE_BELL})`).exec(pre.slice(index).join('')) || {groups: {}};
+ if (groups.code !== undefined) {
+ const code = Number.parseFloat(groups.code);
+ escapeCode = code === END_CODE ? undefined : code;
+ } else if (groups.uri !== undefined) {
+ escapeUrl = groups.uri.length === 0 ? undefined : groups.uri;
+ }
+ }
+
+ const code = ansiStyles.codes.get(Number(escapeCode));
+
+ if (pre[index + 1] === '\n') {
+ if (escapeUrl) {
+ returnValue += wrapAnsiHyperlink('');
+ }
+
+ if (escapeCode && code) {
+ returnValue += wrapAnsi(code);
+ }
+ } else if (character === '\n') {
+ if (escapeCode && code) {
+ returnValue += wrapAnsi(escapeCode);
+ }
+
+ if (escapeUrl) {
+ returnValue += wrapAnsiHyperlink(escapeUrl);
+ }
+ }
+ }
+
+ return returnValue;
+};
+
+// For each newline, invoke the method separately
+module.exports = (string, columns, options) => {
+ return String(string)
+ .normalize()
+ .replace(/\r\n/g, '\n')
+ .split('\n')
+ .map(line => exec(line, columns, options))
+ .join('\n');
+};