1 // Copyright 2014 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
11 use std::default::Default;
13 use std::io::prelude::*;
15 use std::path::{PathBuf, Path};
20 use rustc::session::search_paths::SearchPaths;
22 use externalfiles::ExternalHtml;
24 use html::escape::Escape;
26 use html::markdown::{Markdown, MarkdownWithToc, find_testable_code, reset_headers};
27 use test::{TestOptions, Collector};
29 /// Separate any lines at the start of the file that begin with `%`.
30 fn extract_leading_metadata<'a>(s: &'a str) -> (Vec<&'a str>, &'a str) {
31 let mut metadata = Vec::new();
33 for line in s.lines() {
34 if line.starts_with("%") {
35 // remove %<whitespace>
36 metadata.push(line[1..].trim_left());
37 count += line.len() + 1;
39 return (metadata, &s[count..]);
42 // if we're here, then all lines were metadata % lines.
46 /// Render `input` (e.g. "foo.md") into an HTML file in `output`
47 /// (e.g. output = "bar" => "bar/foo.html").
48 pub fn render(input: &str, mut output: PathBuf, matches: &getopts::Matches,
49 external_html: &ExternalHtml, include_toc: bool) -> isize {
50 let input_p = Path::new(input);
51 output.push(input_p.file_stem().unwrap());
52 output.set_extension("html");
54 let mut css = String::new();
55 for name in &matches.opt_strs("markdown-css") {
56 let s = format!("<link rel=\"stylesheet\" type=\"text/css\" href=\"{}\">\n", name);
60 let input_str = load_or_return!(input, 1, 2);
61 let playground = matches.opt_str("markdown-playground-url");
62 if playground.is_some() {
63 markdown::PLAYGROUND_KRATE.with(|s| { *s.borrow_mut() = Some(None); });
65 let playground = playground.unwrap_or("".to_string());
67 let mut out = match File::create(&output) {
69 let _ = writeln!(&mut io::stderr(),
70 "error opening `{}` for writing: {}",
77 let (metadata, text) = extract_leading_metadata(&input_str);
78 if metadata.is_empty() {
79 let _ = writeln!(&mut io::stderr(),
80 "invalid markdown file: expecting initial line with `% ...TITLE...`");
83 let title = metadata[0];
87 let rendered = if include_toc {
88 format!("{}", MarkdownWithToc(text))
90 format!("{}", Markdown(text))
98 <meta charset="utf-8">
99 <meta name="viewport" content="width=device-width, initial-scale=1.0">
100 <meta name="generator" content="rustdoc">
101 <title>{title}</title>
106 <body class="rustdoc">
108 <div class="warning">
109 This old browser is unsupported and will most likely display funky
115 <h1 class="title">{title}</h1>
117 <script type="text/javascript">
118 window.playgroundUrl = "{playground}";
123 title = Escape(title),
125 in_header = external_html.in_header,
126 before_content = external_html.before_content,
128 after_content = external_html.after_content,
129 playground = playground,
134 let _ = writeln!(&mut io::stderr(),
135 "error writing to `{}`: {}",
136 output.display(), e);
143 /// Run any tests/code examples in the markdown file `input`.
144 pub fn test(input: &str, libs: SearchPaths, externs: core::Externs,
145 mut test_args: Vec<String>) -> isize {
146 let input_str = load_or_return!(input, 1, 2);
148 let mut opts = TestOptions::default();
149 opts.no_crate_inject = true;
150 let mut collector = Collector::new(input.to_string(), libs, externs,
152 find_testable_code(&input_str, &mut collector);
153 test_args.insert(0, "rustdoctest".to_string());
154 testing::test_main(&test_args, collector.tests);