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/*
This class is extended by gitbook-markdown and gitbook-asciidoc
to generate back markdown/asciidoc from GitBook metadata.
*/
class ToText {
constructor(markup) {
Object.assign(this, markup);
}
// Break line
onBL() {
return '\n';
}
onText(text) {
return text;
}
onHR() {
return '<hr />';
}
// ---- TITLES
onTitleStart(level) {
return '<h' + level + '>';
}
onTitleEnd(level) {
return '</h' + level + '>';
}
// ---- PARAGRAPHS / SECTIONS
onParagraphStart() {
return '<p>';
}
onParagraphEnd() {
return '</p>';
}
onSection() {
return this.onBL();
}
// ---- LINKS
onLinkStart(href) {
return '<a href="' + href + '">';
}
onLinkEnd(href) {
return '</a>';
}
// ---- LISTS
onListItemStart(level) {
return this._spaces((level + 1) * 4) + '<li>';
}
onListItemEnd(level) {
return this._spaces((level + 1) * 4) + '</li>' + this.onBL();
}
onListStart(level) {
return this._spaces(level * 4) + '<ul>' + this.onBL();
}
onListEnd(level) {
return this._spaces(level * 4) + '</ul>' + this.onBL();
}
// ------ LANGS
langs(languages) {
let content = '';
content += this.onTitleStart(1) + this.onText('Languages') + this.onTitleEnd(1);
content += this.onSection();
content += this._summaryArticles(languages);
return content;
}
// ------ GLOSSARY
glossary(glossary) {
let content = '';
content += this.onTitleStart(1) + this.onText('Glossary') + this.onTitleEnd(1);
content += this.onSection();
glossary.forEach((entry) => {
content += this.onTitleStart(2) + this.onText(entry.name) + this.onTitleEnd(2);
content += this.onParagraphStart();
content += this.onText(entry.description);
content += this.onParagraphEnd();
content += this.onSection();
});
return content;
}
// ------ SUMMARY
_summaryArticle(article, level) {
let content = '';
content += this.onListItemStart(level);
if (article.ref) content += this.onLinkStart(article.ref);
content += this.onText(article.title);
if (article.ref) content += this.onLinkEnd(article.ref);
content += this.onBL();
if (article.articles && article.articles.length > 0) {
content += this._summaryArticles(article.articles, level + 1);
}
content += this.onListItemEnd(level);
return content;
}
_summaryArticles(articles, level) {
let content = '';
level = level || 0;
content += this.onListStart(level);
articles.forEach((article) => {
content += this._summaryArticle(article, level);
});
content += this.onListEnd(level);
return content;
}
_summaryPart(part) {
let content = '';
if (part.title) content += this.onTitleStart(2) + this.onText(part.title) + this.onTitleEnd(2);
content += this._summaryArticles(part.articles);
return content;
}
summary(summary) {
let content = '';
content += this.onTitleStart(1) + this.onText('Summary') + this.onTitleEnd(1);
content += this.onSection();
summary.parts.forEach((part, i) => {
const next = summary.parts[i + 1];
content += this._summaryPart(part);
if (next && !next.title) {
content += this.onBL() + this.onHR() + this.onBL();
} else {
content += this.onSection();
}
});
return content;
}
// ---- Utilities
_spaces(n, s) {
return Array(n + 1).join(s || ' ');
}
}
module.exports = ToText;
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