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// This has been vendored from the Deno standard library and ported to Node.js.
// https://github.com/denoland/deno_std/blob/0.159.0/fmt/colors.ts
declare const process:
| {
env?: {
NO_COLOR?: boolean;
};
}
| undefined;
declare const Deno:
| {
noColor: boolean;
}
| undefined;
interface Code {
open: string;
close: string;
regexp: RegExp;
}
interface Rgb {
r: number;
g: number;
b: number;
}
const noColor = !!process?.env?.NO_COLOR || !!Deno?.noColor;
let enabled = !noColor;
export function setColorEnabled(value: boolean) {
if (noColor) {
return;
}
enabled = value;
}
export function getColorEnabled(): boolean {
return enabled;
}
function code(open: number[], close: number): Code {
return {
open: `\x1b[${open.join(';')}m`,
close: `\x1b[${close}m`,
regexp: new RegExp(`\\x1b\\[${close}m`, 'g'),
};
}
function run(str: string, code: Code): string {
return enabled
? `${code.open}${str.replace(code.regexp, code.open)}${code.close}`
: str;
}
export function reset(str: string): string {
return run(str, code([0], 0));
}
export function bold(str: string): string {
return run(str, code([1], 22));
}
export function dim(str: string): string {
return run(str, code([2], 22));
}
export function italic(str: string): string {
return run(str, code([3], 23));
}
export function underline(str: string): string {
return run(str, code([4], 24));
}
export function inverse(str: string): string {
return run(str, code([7], 27));
}
export function hidden(str: string): string {
return run(str, code([8], 28));
}
export function strikethrough(str: string): string {
return run(str, code([9], 29));
}
export function black(str: string): string {
return run(str, code([30], 39));
}
export function red(str: string): string {
return run(str, code([31], 39));
}
export function green(str: string): string {
return run(str, code([32], 39));
}
export function yellow(str: string): string {
return run(str, code([33], 39));
}
export function blue(str: string): string {
return run(str, code([34], 39));
}
export function magenta(str: string): string {
return run(str, code([35], 39));
}
export function cyan(str: string): string {
return run(str, code([36], 39));
}
export function white(str: string): string {
return run(str, code([37], 39));
}
export function gray(str: string): string {
return brightBlack(str);
}
export function brightBlack(str: string): string {
return run(str, code([90], 39));
}
export function brightRed(str: string): string {
return run(str, code([91], 39));
}
export function brightGreen(str: string): string {
return run(str, code([92], 39));
}
export function brightYellow(str: string): string {
return run(str, code([93], 39));
}
export function brightBlue(str: string): string {
return run(str, code([94], 39));
}
export function brightMagenta(str: string): string {
return run(str, code([95], 39));
}
export function brightCyan(str: string): string {
return run(str, code([96], 39));
}
export function brightWhite(str: string): string {
return run(str, code([97], 39));
}
export function bgBlack(str: string): string {
return run(str, code([40], 49));
}
export function bgRed(str: string): string {
return run(str, code([41], 49));
}
export function bgGreen(str: string): string {
return run(str, code([42], 49));
}
export function bgYellow(str: string): string {
return run(str, code([43], 49));
}
export function bgBlue(str: string): string {
return run(str, code([44], 49));
}
export function bgMagenta(str: string): string {
return run(str, code([45], 49));
}
export function bgCyan(str: string): string {
return run(str, code([46], 49));
}
export function bgWhite(str: string): string {
return run(str, code([47], 49));
}
export function bgBrightBlack(str: string): string {
return run(str, code([100], 49));
}
export function bgBrightRed(str: string): string {
return run(str, code([101], 49));
}
export function bgBrightGreen(str: string): string {
return run(str, code([102], 49));
}
export function bgBrightYellow(str: string): string {
return run(str, code([103], 49));
}
export function bgBrightBlue(str: string): string {
return run(str, code([104], 49));
}
export function bgBrightMagenta(str: string): string {
return run(str, code([105], 49));
}
export function bgBrightCyan(str: string): string {
return run(str, code([106], 49));
}
export function bgBrightWhite(str: string): string {
return run(str, code([107], 49));
}
function clampAndTruncate(n: number, max = 255, min = 0): number {
return Math.trunc(Math.max(Math.min(n, max), min));
}
export function rgb8(str: string, color: number): string {
return run(str, code([38, 5, clampAndTruncate(color)], 39));
}
export function bgRgb8(str: string, color: number): string {
return run(str, code([48, 5, clampAndTruncate(color)], 49));
}
export function rgb24(str: string, color: number | Rgb): string {
if (typeof color === 'number') {
return run(
str,
code([38, 2, (color >> 16) & 0xff, (color >> 8) & 0xff, color & 0xff], 39)
);
}
return run(
str,
code(
[
38,
2,
clampAndTruncate(color.r),
clampAndTruncate(color.g),
clampAndTruncate(color.b),
],
39
)
);
}
export function bgRgb24(str: string, color: number | Rgb): string {
if (typeof color === 'number') {
return run(
str,
code([48, 2, (color >> 16) & 0xff, (color >> 8) & 0xff, color & 0xff], 49)
);
}
return run(
str,
code(
[
48,
2,
clampAndTruncate(color.r),
clampAndTruncate(color.g),
clampAndTruncate(color.b),
],
49
)
);
}
// https://github.com/chalk/ansi-regex/blob/02fa893d619d3da85411acc8fd4e2eea0e95a9d9/index.js
const ANSI_PATTERN = new RegExp(
[
'[\\u001B\\u009B][[\\]()#;?]*(?:(?:(?:(?:;[-a-zA-Z\\d\\/#&.:=?%@~_]+)*|[a-zA-Z\\d]+(?:;[-a-zA-Z\\d\\/#&.:=?%@~_]*)*)?\\u0007)',
'(?:(?:\\d{1,4}(?:;\\d{0,4})*)?[\\dA-PR-TZcf-nq-uy=><~]))',
].join('|'),
'g'
);
export function stripColor(string: string): string {
return string.replace(ANSI_PATTERN, '');
}