ink/build/colorize.js

React for CLI

import chalk, { foregroundColorNames, } from 'chalk';
const rgbRegex = /^rgb\(\s*(?<red>\d+)\s*,\s*(?<green>\d+)\s*,\s*(?<blue>\d+)\s*\)$/;
const ansiRegex = /^ansi256\(\s?(?<value>\d+)\s?\)$/;
const isNamedColor = (color) => foregroundColorNames.includes(color);
const colorize = (text, color, type) => {
    // eslint-disable-next-line @typescript-eslint/strict-boolean-expressions -- JavaScript callers pass `null` or `false` (for example `condition && 'red'`), and any falsy value means unset.
    if (!color) {
        return text;
    }
    if (isNamedColor(color)) {
        if (type === 'foreground') {
            return chalk[color](text);
        }
        const methodName = `bg${color[0].toUpperCase() + color.slice(1)}`;
        return chalk[methodName](text);
    }
    if (color.startsWith('#')) {
        return type === 'foreground'
            ? chalk.hex(color)(text)
            : chalk.bgHex(color)(text);
    }
    if (color.startsWith('ansi256')) {
        const matches = ansiRegex.exec(color);
        if (!matches) {
            return text;
        }
        const value = Number(matches.groups['value']);
        return type === 'foreground'
            ? chalk.ansi256(value)(text)
            : chalk.bgAnsi256(value)(text);
    }
    if (color.startsWith('rgb')) {
        const matches = rgbRegex.exec(color);
        if (!matches) {
            return text;
        }
        const { red, green, blue } = matches.groups;
        const firstValue = Number(red);
        const secondValue = Number(green);
        const thirdValue = Number(blue);
        return type === 'foreground'
            ? chalk.rgb(firstValue, secondValue, thirdValue)(text)
            : chalk.bgRgb(firstValue, secondValue, thirdValue)(text);
    }
    return text;
};
export default colorize;
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