@21epub/epub-thirdparty
Version:
epub-thirdparty
98 lines (97 loc) • 3.8 kB
JavaScript
/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
import { illegalArgument } from './errors.js';
import { escapeIcons } from './iconLabels.js';
export class MarkdownString {
constructor(value = '', isTrustedOrOptions = false) {
var _a, _b, _c;
this.value = value;
if (typeof this.value !== 'string') {
throw illegalArgument('value');
}
if (typeof isTrustedOrOptions === 'boolean') {
this.isTrusted = isTrustedOrOptions;
this.supportThemeIcons = false;
this.supportHtml = false;
}
else {
this.isTrusted = (_a = isTrustedOrOptions.isTrusted) !== null && _a !== void 0 ? _a : undefined;
this.supportThemeIcons = (_b = isTrustedOrOptions.supportThemeIcons) !== null && _b !== void 0 ? _b : false;
this.supportHtml = (_c = isTrustedOrOptions.supportHtml) !== null && _c !== void 0 ? _c : false;
}
}
appendText(value, newlineStyle = 0 /* Paragraph */) {
this.value += escapeMarkdownSyntaxTokens(this.supportThemeIcons ? escapeIcons(value) : value)
.replace(/([ \t]+)/g, (_match, g1) => ' '.repeat(g1.length))
.replace(/\>/gm, '\\>')
.replace(/\n/g, newlineStyle === 1 /* Break */ ? '\\\n' : '\n\n');
return this;
}
appendMarkdown(value) {
this.value += value;
return this;
}
appendCodeblock(langId, code) {
this.value += '\n```';
this.value += langId;
this.value += '\n';
this.value += code;
this.value += '\n```\n';
return this;
}
}
export function isEmptyMarkdownString(oneOrMany) {
if (isMarkdownString(oneOrMany)) {
return !oneOrMany.value;
}
else if (Array.isArray(oneOrMany)) {
return oneOrMany.every(isEmptyMarkdownString);
}
else {
return true;
}
}
export function isMarkdownString(thing) {
if (thing instanceof MarkdownString) {
return true;
}
else if (thing && typeof thing === 'object') {
return typeof thing.value === 'string'
&& (typeof thing.isTrusted === 'boolean' || thing.isTrusted === undefined)
&& (typeof thing.supportThemeIcons === 'boolean' || thing.supportThemeIcons === undefined);
}
return false;
}
export function escapeMarkdownSyntaxTokens(text) {
// escape markdown syntax tokens: http://daringfireball.net/projects/markdown/syntax#backslash
return text.replace(/[\\`*_{}[\]()#+\-!]/g, '\\$&');
}
export function removeMarkdownEscapes(text) {
if (!text) {
return text;
}
return text.replace(/\\([\\`*_{}[\]()#+\-.!])/g, '$1');
}
export function parseHrefAndDimensions(href) {
const dimensions = [];
const splitted = href.split('|').map(s => s.trim());
href = splitted[0];
const parameters = splitted[1];
if (parameters) {
const heightFromParams = /height=(\d+)/.exec(parameters);
const widthFromParams = /width=(\d+)/.exec(parameters);
const height = heightFromParams ? heightFromParams[1] : '';
const width = widthFromParams ? widthFromParams[1] : '';
const widthIsFinite = isFinite(parseInt(width));
const heightIsFinite = isFinite(parseInt(height));
if (widthIsFinite) {
dimensions.push(`width="${width}"`);
}
if (heightIsFinite) {
dimensions.push(`height="${height}"`);
}
}
return { href, dimensions };
}