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denoland-deno/colors/mod.ts

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2019-01-02 09:56:17 -05:00
// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
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interface Code {
open: string;
close: string;
regexp: RegExp;
}
let enabled = true;
export function setEnabled(value: boolean) {
enabled = value;
}
export function getEnabled(): boolean {
return enabled;
}
function code(open: number, close: number): Code {
return {
open: `\x1b[${open}m`,
close: `\x1b[${close}m`,
regexp: new RegExp(`\\x1b\\[${close}m`, "g")
};
}
function run(str: string, code: Code) {
return enabled
? `${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 run(str, code(90, 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));
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}