@@ 7-50 (lines=44) @@ | ||
4 | , { first, strlen } = require ('printable-characters') // handles ANSI codes and invisible characters |
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5 | , limit = (s, n) => (first (s, n - 1) + '…') |
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6 | ||
7 | const asColumns = (rows, cfg_) => { |
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8 | ||
9 | const |
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10 | ||
11 | zip = (arrs, f) => arrs.reduce ((a, b) => b.map ((b, i) => [...a[i] || [], b]), []).map (args => f (...args)), |
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12 | ||
13 | /* Convert cell data to string (converting multiline text to singleline) */ |
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14 | ||
15 | cells = rows.map (r => r.map (c => (c === undefined) ? '' : cfg_.print (c).replace (/\n/g, '\\n'))), |
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16 | ||
17 | /* Compute column widths (per row) and max widths (per column) */ |
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18 | ||
19 | cellWidths = cells.map (r => r.map (strlen)), |
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20 | maxWidths = zip (cellWidths, Math.max), |
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21 | ||
22 | /* Default config */ |
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23 | ||
24 | cfg = O.assign ({ |
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25 | delimiter: ' ', |
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26 | minColumnWidths: maxWidths.map (x => 0), |
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27 | maxTotalWidth: 0 }, cfg_), |
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28 | ||
29 | delimiterLength = strlen (cfg.delimiter), |
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30 | ||
31 | /* Project desired column widths, taking maxTotalWidth and minColumnWidths in account. */ |
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32 | ||
33 | totalWidth = maxWidths.reduce ((a, b) => a + b, 0), |
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34 | relativeWidths = maxWidths.map (w => w / totalWidth), |
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35 | maxTotalWidth = cfg.maxTotalWidth - (delimiterLength * (maxWidths.length - 1)), |
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36 | excessWidth = Math.max (0, totalWidth - maxTotalWidth), |
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37 | computedWidths = zip ([cfg.minColumnWidths, maxWidths, relativeWidths], |
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38 | (min, max, relative) => Math.max (min, Math.floor (max - excessWidth * relative))), |
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39 | ||
40 | /* This is how many symbols we should pad or cut (per column). */ |
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41 | ||
42 | restCellWidths = cellWidths.map (widths => zip ([computedWidths, widths], (a, b) => a - b)) |
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43 | ||
44 | /* Perform final composition. */ |
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45 | ||
46 | return zip ([cells, restCellWidths], (a, b) => |
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47 | zip ([a, b], (str, w) => (w >= 0) |
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48 | ? (cfg.right ? (' '.repeat (w) + str) : (str + ' '.repeat (w))) |
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49 | : (limit (str, strlen (str) + w))).join (cfg.delimiter)) |
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50 | } |
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51 | ||
52 | const asTable = cfg => O.assign (arr => { |
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53 |
@@ 13-54 (lines=42) @@ | ||
10 | strlen = _require.strlen, |
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11 | limit = (s, n) => first(s, n - 1) + '…'; |
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12 | ||
13 | const asColumns = (rows, cfg_) => { |
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14 | ||
15 | const zip = (arrs, f) => arrs.reduce((a, b) => b.map((b, i) => [].concat(_toConsumableArray(a[i] || []), [b])), []).map(args => f.apply(undefined, _toConsumableArray(args))), |
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16 | ||
17 | ||
18 | /* Convert cell data to string (converting multiline text to singleline) */ |
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19 | ||
20 | cells = rows.map(r => r.map(c => c === undefined ? '' : cfg_.print(c).replace(/\n/g, '\\n'))), |
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21 | ||
22 | ||
23 | /* Compute column widths (per row) and max widths (per column) */ |
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24 | ||
25 | cellWidths = cells.map(r => r.map(strlen)), |
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26 | maxWidths = zip(cellWidths, Math.max), |
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27 | ||
28 | ||
29 | /* Default config */ |
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30 | ||
31 | cfg = O.assign({ |
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32 | delimiter: ' ', |
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33 | minColumnWidths: maxWidths.map(x => 0), |
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34 | maxTotalWidth: 0 }, cfg_), |
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35 | delimiterLength = strlen(cfg.delimiter), |
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36 | ||
37 | ||
38 | /* Project desired column widths, taking maxTotalWidth and minColumnWidths in account. */ |
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39 | ||
40 | totalWidth = maxWidths.reduce((a, b) => a + b, 0), |
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41 | relativeWidths = maxWidths.map(w => w / totalWidth), |
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42 | maxTotalWidth = cfg.maxTotalWidth - delimiterLength * (maxWidths.length - 1), |
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43 | excessWidth = Math.max(0, totalWidth - maxTotalWidth), |
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44 | computedWidths = zip([cfg.minColumnWidths, maxWidths, relativeWidths], (min, max, relative) => Math.max(min, Math.floor(max - excessWidth * relative))), |
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45 | ||
46 | ||
47 | /* This is how many symbols we should pad or cut (per column). */ |
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48 | ||
49 | restCellWidths = cellWidths.map(widths => zip([computedWidths, widths], (a, b) => a - b)); |
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50 | ||
51 | /* Perform final composition. */ |
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52 | ||
53 | 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)); |
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54 | }; |
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55 | ||
56 | const asTable = cfg => O.assign(arr => { |
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57 | var _ref; |