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34 lines
816 B
TypeScript
34 lines
816 B
TypeScript
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// Copyright 2018 the Deno authors. All rights reserved. MIT license.
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import { styles } from "./styles.ts";
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type Styles = { readonly [S in keyof typeof styles]: Color };
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type Color = Styles & {
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(str: string): string;
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};
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const styleStack: string[] = [];
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export const color = function color(str: string): string {
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styleStack.reverse();
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while (styleStack.length) {
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const style = styleStack.pop();
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const code = styles[style];
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str = `${code.open}${str.replace(code.closeRe, code.open)}${
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code.close
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}`.replace(/\r?\n/g, `${code.close}$&${code.open}`);
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}
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return str;
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} as Color;
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for (const style of Object.keys(styles)) {
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Object.defineProperty(color, style, {
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get() {
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styleStack.push(style);
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return color;
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},
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enumerable: true,
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configurable: false
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});
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}
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