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// This file is part of Germ <https://github.com/gemrest/germ>.
// Copyright (C) 2022-2022 Fuwn <[email protected]>
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, version 3.
//
// This program is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
// Copyright (C) 2022-2022 Fuwn <[email protected]>
// SPDX-License-Identifier: GPL-3.0-only
use crate::ast::Node;
pub fn convert(source: &[Node]) -> String {
let mut html = String::new();
// Since we have an AST tree of the Gemtext, it is very easy to convert from
// this AST tree to an alternative markup format.
for node in source {
match node {
Node::Text(text) => html.push_str(&format!("<p>{text}</p>")),
Node::Link { to, text } => {
html.push_str(&format!(
"<a href=\"{}\">{}</a><br>",
to,
text.clone().unwrap_or_else(|| to.clone())
));
}
Node::Heading { level, text } => {
html.push_str(&format!(
"<{}>{}</{0}>",
match level {
1 => "h1",
2 => "h2",
3 => "h3",
_ => "p",
},
text
));
}
Node::List(items) => html.push_str(&format!(
"<ul>{}</ul>",
items
.iter()
.map(|i| format!("<li>{i}</li>"))
.collect::<Vec<String>>()
.join("\n")
)),
Node::Blockquote(text) =>
html.push_str(&format!("<blockquote>{text}</blockquote>")),
Node::PreformattedText { text, .. } => {
html.push_str(&format!("<pre>{text}</pre>"));
}
Node::Whitespace => {}
}
}
html
}
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