@wix/css-property-parser/dist/evaluators/font-style.js

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

// Font Style property parser
// Handles parsing of CSS font-style property values
// https://developer.mozilla.org/en-US/docs/Web/CSS/font-style
import { isCssVariable, isGlobalKeyword, getValidKeyword } from '../utils/shared-utils.js';
import { parse as parseCSSVariable, toCSSValue as cssVariableToCSSValue } from './css-variable.js';
// Import centralized types
import { FONT_STYLE_KEYWORDS } from '../types.js';
/**
 * Parse a CSS font-style property string
 */
export 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 (isCssVariable(trimmed)) {
        return parseCSSVariable(trimmed);
    }
    // Handle global keywords
    if (isGlobalKeyword(trimmed)) {
        return { type: 'keyword', keyword: trimmed.toLowerCase() };
    }
    // Handle font-style keywords
    const fontStyleKeyword = getValidKeyword(trimmed, FONT_STYLE_KEYWORDS);
    if (fontStyleKeyword) {
        return { type: 'keyword', keyword: fontStyleKeyword };
    }
    return null;
}
/**
 * Convert FontStyleValue back to CSS string
 */
export function toCSSValue(parsed) {
    if (!parsed) {
        return null;
    }
    // Handle CSS variables
    if ('CSSvariable' in parsed) {
        return cssVariableToCSSValue(parsed);
    }
    if ('keyword' in parsed) {
        return parsed.keyword;
    }
    return null;
}