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Configuration error
Configuration error
File size: 3,300 Bytes
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"use strict";
const O = Object
, { first, strlen } = require ('printable-characters') // handles ANSI codes and invisible characters
, limit = (s, n) => (first (s, n - 1) + '…')
const asColumns = (rows, cfg_) => {
const
zip = (arrs, f) => arrs.reduce ((a, b) => b.map ((b, i) => [...a[i] || [], b]), []).map (args => f (...args)),
/* Convert cell data to string (converting multiline text to singleline) */
cells = rows.map (r => r.map (c => c.replace (/\n/g, '\\n'))),
/* Compute column widths (per row) and max widths (per column) */
cellWidths = cells.map (r => r.map (strlen)),
maxWidths = zip (cellWidths, Math.max),
/* Default config */
cfg = O.assign ({
delimiter: ' ',
minColumnWidths: maxWidths.map (x => 0),
maxTotalWidth: 0 }, cfg_),
delimiterLength = strlen (cfg.delimiter),
/* Project desired column widths, taking maxTotalWidth and minColumnWidths in account. */
totalWidth = maxWidths.reduce ((a, b) => a + b, 0),
relativeWidths = maxWidths.map (w => w / totalWidth),
maxTotalWidth = cfg.maxTotalWidth - (delimiterLength * (maxWidths.length - 1)),
excessWidth = Math.max (0, totalWidth - maxTotalWidth),
computedWidths = zip ([cfg.minColumnWidths, maxWidths, relativeWidths],
(min, max, relative) => Math.max (min, Math.floor (max - excessWidth * relative))),
/* This is how many symbols we should pad or cut (per column). */
restCellWidths = cellWidths.map (widths => zip ([computedWidths, widths], (a, b) => a - b))
/* Perform final composition. */
return zip ([cells, restCellWidths], (a, b) =>
zip ([a, b], (str, w) => (w >= 0)
? (cfg.right ? (' '.repeat (w) + str) : (str + ' '.repeat (w)))
: (limit (str, strlen (str) + w))).join (cfg.delimiter))
}
const asTable = cfg => O.assign (arr => {
/* Print arrays */
if (arr[0] && Array.isArray (arr[0])) {
return asColumns (arr.map (r => r.map (
(c, i) => (c === undefined) ? '' : cfg.print (c, i)
)
),
cfg).join ('\n')
}
/* Print objects */
const colNames = [...new Set ([].concat (...arr.map (O.keys)))],
columns = [colNames.map (cfg.title),
...arr.map (o => colNames.map (
key => (o[key] === undefined) ? '' : cfg.print (o[key], key)
)
)
],
lines = asColumns (columns, cfg)
return (cfg.dash ? [lines[0], cfg.dash.repeat (strlen (lines[0])), ...lines.slice (1)] : lines).join ('\n')
}, cfg, {
configure: newConfig => asTable (O.assign ({}, cfg, newConfig)),
})
module.exports = asTable ({
maxTotalWidth: Number.MAX_SAFE_INTEGER,
print: String,
title: String,
dash: '-',
right: false
})
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