mirror of
https://github.com/nodejs/node.git
synced 2024-12-01 16:10:02 +01:00
9e23eeffd0
This is more accurate for displayed full-width characters (e.g. CJK ones) and makes the calculations match the ones we use in the readline module. Fixes: https://github.com/nodejs/node/issues/29299 PR-URL: https://github.com/nodejs/node/pull/29300 Reviewed-By: Gus Caplan <me@gus.host> Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com> Reviewed-By: Yongsheng Zhang <zyszys98@gmail.com> Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl> Reviewed-By: Tobias Nießen <tniessen@tnie.de> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com>
83 lines
2.7 KiB
JavaScript
83 lines
2.7 KiB
JavaScript
'use strict';
|
|
|
|
const { Math, ObjectPrototype } = primordials;
|
|
|
|
const { getStringWidth } = require('internal/readline/utils');
|
|
|
|
// The use of Unicode characters below is the only non-comment use of non-ASCII
|
|
// Unicode characters in Node.js built-in modules. If they are ever removed or
|
|
// rewritten with \u escapes, then a test will need to be (re-)added to Node.js
|
|
// core to verify that Unicode characters work in built-ins. Otherwise,
|
|
// consumers using Unicode in _third_party_main.js will run into problems.
|
|
// Refs: https://github.com/nodejs/node/issues/10673
|
|
const tableChars = {
|
|
/* eslint-disable node-core/non-ascii-character */
|
|
middleMiddle: '─',
|
|
rowMiddle: '┼',
|
|
topRight: '┐',
|
|
topLeft: '┌',
|
|
leftMiddle: '├',
|
|
topMiddle: '┬',
|
|
bottomRight: '┘',
|
|
bottomLeft: '└',
|
|
bottomMiddle: '┴',
|
|
rightMiddle: '┤',
|
|
left: '│ ',
|
|
right: ' │',
|
|
middle: ' │ ',
|
|
/* eslint-enable node-core/non-ascii-character */
|
|
};
|
|
|
|
const renderRow = (row, columnWidths) => {
|
|
let out = tableChars.left;
|
|
for (var i = 0; i < row.length; i++) {
|
|
const cell = row[i];
|
|
const len = getStringWidth(cell);
|
|
const needed = (columnWidths[i] - len) / 2;
|
|
// round(needed) + ceil(needed) will always add up to the amount
|
|
// of spaces we need while also left justifying the output.
|
|
out += `${' '.repeat(needed)}${cell}${' '.repeat(Math.ceil(needed))}`;
|
|
if (i !== row.length - 1)
|
|
out += tableChars.middle;
|
|
}
|
|
out += tableChars.right;
|
|
return out;
|
|
};
|
|
|
|
const table = (head, columns) => {
|
|
const rows = [];
|
|
const columnWidths = head.map((h) => getStringWidth(h));
|
|
const longestColumn = columns.reduce((n, a) => Math.max(n, a.length), 0);
|
|
|
|
for (var i = 0; i < head.length; i++) {
|
|
const column = columns[i];
|
|
for (var j = 0; j < longestColumn; j++) {
|
|
if (rows[j] === undefined)
|
|
rows[j] = [];
|
|
const value = rows[j][i] =
|
|
ObjectPrototype.hasOwnProperty(column, j) ? column[j] : '';
|
|
const width = columnWidths[i] || 0;
|
|
const counted = getStringWidth(value);
|
|
columnWidths[i] = Math.max(width, counted);
|
|
}
|
|
}
|
|
|
|
const divider = columnWidths.map((i) =>
|
|
tableChars.middleMiddle.repeat(i + 2));
|
|
|
|
let result = `${tableChars.topLeft}${divider.join(tableChars.topMiddle)}` +
|
|
`${tableChars.topRight}\n${renderRow(head, columnWidths)}\n` +
|
|
`${tableChars.leftMiddle}${divider.join(tableChars.rowMiddle)}` +
|
|
`${tableChars.rightMiddle}\n`;
|
|
|
|
for (const row of rows)
|
|
result += `${renderRow(row, columnWidths)}\n`;
|
|
|
|
result += `${tableChars.bottomLeft}${divider.join(tableChars.bottomMiddle)}` +
|
|
tableChars.bottomRight;
|
|
|
|
return result;
|
|
};
|
|
|
|
module.exports = table;
|