svg-color-linter/lib/core/get-colors-of-file.js

Linting tool to check if SVG files use only colors of a given color palette

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.getColorsOfFile = void 0;
const getColorsOfFile = (svgFileContents) => {
    const colorPattern = new RegExp(/(fill|stop-color|stroke)="([^"]+)"/, 'gi');
    const colorPatternCss = new RegExp(/(stroke|fill):\s?([^;"]+)/, 'gi');
    const urlReference = new RegExp(/url\(#\w+\)/);
    const colors = [
        ...svgFileContents.matchAll(colorPattern),
        ...svgFileContents.matchAll(colorPatternCss),
    ];
    const result = [...colors]
        .map((c) => c[2])
        .filter((c) => c !== undefined)
        .filter((c) => !c.match(urlReference))
        .filter((c) => c !== 'none');
    // remove duplicates before returning
    return [...new Set(result)];
};
exports.getColorsOfFile = getColorsOfFile;