Timothy J. Warren
5b40d16999
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133 lines
3.1 KiB
JavaScript
133 lines
3.1 KiB
JavaScript
/**
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* This is a test file and a terminal color table program
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*/
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import Ansi, { AnsiColor, Ground } from '../src/common/ansi.ts';
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// ----------------------------------------------------------------------------
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// Display table of the 256 type color console escape codes
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// ----------------------------------------------------------------------------
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const addColor = (fore: number | string, back: number | string): string => {
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let output = '';
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output += (typeof fore === 'number') ? Ansi.color(fore) : fore;
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output += (typeof back === 'number') ? Ansi.color(back) : back;
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return output;
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};
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const padNum = (num: number): string =>
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String(num).padStart(3, ' ').padEnd(5, ' ');
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const colorBlock = (
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start: number,
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end: number,
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block: (i: number) => [string | number, string | number],
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): string => {
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let output = '';
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for (let i = start; i < end; i++) {
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const [fg, bg] = block(i);
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output += addColor(fg, bg);
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output += padNum(i);
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output += Ansi.ResetFormatting;
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}
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return output;
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};
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function print16colorTable(): void {
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const drawRow = (start: number): string => {
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let end = start + 8;
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let blocks = [
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colorBlock(start, end, (i: number) => [i, AnsiColor.BgBlack]),
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colorBlock(start, end, (i: number) => [i, AnsiColor.BgBrightWhite]),
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];
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start += 10;
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end += 10;
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blocks.push(colorBlock(start, end, (i: number) => [AnsiColor.FgBlack, i]));
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blocks.push(
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colorBlock(start, end, (i: number) => [AnsiColor.FgBrightWhite, i]),
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);
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return blocks.join(' '.repeat(5));
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};
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let colorTable = [
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drawRow(30),
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drawRow(90),
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].join('\n');
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colorTable += '\n';
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console.log(colorTable);
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}
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function print256colorTable(): void {
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let colorTable = '';
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// deno-fmt-ignore
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const breaks = [
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7, 15,
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21, 27, 33, 39, 45, 51,
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57, 63, 69, 75, 81, 87,
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93, 99, 105, 111, 117, 123,
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129, 135, 141, 147, 153, 159,
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165, 171, 177, 183, 189, 195,
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201, 207, 213, 219, 225, 231,
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237, 243, 249, 255,
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];
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const doubleBreaks = [15, 51, 87, 123, 159, 195, 231, 255];
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breaks.forEach((line, n) => {
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const start = (n > 0) ? breaks[n - 1] + 1 : 0;
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const end = line + 1;
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const blocks = [
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colorBlock(
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start,
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end,
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(i: number) => [Ansi.color256(i, Ground.Fore), AnsiColor.BgBlack],
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),
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colorBlock(
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start,
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end,
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(i: number) => [Ansi.color256(i, Ground.Fore), AnsiColor.BgBrightWhite],
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),
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colorBlock(
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start,
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end,
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(i: number) => [AnsiColor.FgBlack, Ansi.color256(i, Ground.Back)],
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),
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colorBlock(
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start,
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end,
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(i: number) => [AnsiColor.FgBrightWhite, Ansi.color256(i, Ground.Back)],
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),
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];
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colorTable += blocks.join(' '.repeat(5));
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colorTable += '\n';
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if (doubleBreaks.includes(line)) {
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colorTable += '\n';
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}
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});
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console.log(colorTable);
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}
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print16colorTable();
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print256colorTable();
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/**
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* Test code for highlighting
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*/
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const decimal: number[] = [0, 117];
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const bigDecimal = 123456789123456789n;
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const octal: number[] = [0o15, 0o1];
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const bigOctal = 0o777777777777n;
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const hexadecimal: number[] = [0x1123, 0x00111];
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const bigHex = 0x123456789ABCDEFn;
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const binary: number[] = [0b11, 0b0011];
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const bigBinary = 0b11101001010101010101n;
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