@wix/css-property-parser/commonjs/evaluators/font-size.cjs

A comprehensive TypeScript library for parsing and serializing CSS property values with full MDN specification compliance

"use strict";
// Font Size property parser
// Handles parsing of CSS font-size property values
// https://developer.mozilla.org/en-US/docs/Web/CSS/font-size
Object.defineProperty(exports, "__esModule", { value: true });
exports.parse = parse;
exports.toCSSValue = toCSSValue;
const shared_utils_1 = require('../utils/shared-utils.cjs');
const css_variable_1 = require('./css-variable.cjs');
const length_1 = require('./length.cjs');
const percentage_1 = require('./percentage.cjs');
// Import centralized types
const types_1 = require('../types.cjs');
/**
 * Parse a CSS font-size property string
 */
function parse(value) {
    if (!value || typeof value !== 'string') {
        return null;
    }
    const trimmed = value.trim();
    if (trimmed === '') {
        return null;
    }
    // CSS variables - parse and return directly
    if ((0, shared_utils_1.isCssVariable)(trimmed)) {
        return (0, css_variable_1.parse)(trimmed);
    }
    // Handle global keywords
    if ((0, shared_utils_1.isGlobalKeyword)(trimmed)) {
        return { type: 'keyword', keyword: trimmed.toLowerCase() };
    }
    // Handle font-size keywords
    const fontSizeKeyword = (0, shared_utils_1.getValidKeyword)(trimmed, types_1.FONT_SIZE_KEYWORDS);
    if (fontSizeKeyword) {
        return { type: 'keyword', keyword: fontSizeKeyword };
    }
    // Percentage values
    const percentageResult = (0, percentage_1.parse)(trimmed);
    if (percentageResult) {
        return percentageResult;
    }
    // Length values
    const lengthResult = (0, length_1.parse)(trimmed);
    if (lengthResult) {
        return lengthResult;
    }
    return null;
}
/**
 * Convert FontSizeValue back to CSS string
 */
function toCSSValue(parsed) {
    if (!parsed) {
        return null;
    }
    // Handle CSS variables
    if ('CSSvariable' in parsed) {
        return (0, css_variable_1.toCSSValue)(parsed);
    }
    if ('keyword' in parsed) {
        return parsed.keyword;
    }
    // Handle length values
    if ('unit' in parsed && parsed.unit !== '%' && parsed.type === 'length') {
        return (0, length_1.toCSSValue)(parsed);
    }
    // Handle percentage values
    if ('unit' in parsed && parsed.unit === '%' && parsed.type === 'percentage') {
        return (0, percentage_1.toCSSValue)(parsed);
    }
    return null;
}