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::*;
14 use std::path::{PathBuf, Path};
19 use rustc::session::search_paths::SearchPaths;
20 use rustc::session::config::{Externs, CodegenOptions};
21 use syntax::codemap::DUMMY_SP;
22 use syntax::edition::Edition;
24 use externalfiles::{ExternalHtml, LoadStringError, load_string};
26 use html::render::reset_ids;
27 use html::escape::Escape;
29 use html::markdown::{Markdown, MarkdownWithToc, find_testable_code};
30 use test::{TestOptions, Collector};
32 /// Separate any lines at the start of the file that begin with `# ` or `%`.
33 fn extract_leading_metadata<'a>(s: &'a str) -> (Vec<&'a str>, &'a str) {
34 let mut metadata = Vec::new();
37 for line in s.lines() {
38 if line.starts_with("# ") || line.starts_with("%") {
39 // trim the whitespace after the symbol
40 metadata.push(line[1..].trim_left());
41 count += line.len() + 1;
43 return (metadata, &s[count..]);
47 // if we're here, then all lines were metadata `# ` or `%` lines.
51 /// Render `input` (e.g. "foo.md") into an HTML file in `output`
52 /// (e.g. output = "bar" => "bar/foo.html").
53 pub fn render(input: &Path, mut output: PathBuf, matches: &getopts::Matches,
54 external_html: &ExternalHtml, include_toc: bool, diag: &errors::Handler) -> isize {
55 output.push(input.file_stem().unwrap());
56 output.set_extension("html");
58 let mut css = String::new();
59 for name in &matches.opt_strs("markdown-css") {
60 let s = format!("<link rel=\"stylesheet\" type=\"text/css\" href=\"{}\">\n", name);
64 let input_str = match load_string(input, diag) {
66 Err(LoadStringError::ReadFail) => return 1,
67 Err(LoadStringError::BadUtf8) => return 2,
69 if let Some(playground) = matches.opt_str("markdown-playground-url").or(
70 matches.opt_str("playground-url")) {
71 markdown::PLAYGROUND.with(|s| { *s.borrow_mut() = Some((None, playground)); });
74 let mut out = match File::create(&output) {
76 diag.struct_err(&format!("{}: {}", output.display(), e)).emit();
82 let (metadata, text) = extract_leading_metadata(&input_str);
83 if metadata.is_empty() {
84 diag.struct_err("invalid markdown file: no initial lines starting with `# ` or `%`").emit();
87 let title = metadata[0];
91 let text = if include_toc {
92 MarkdownWithToc(text).to_string()
94 Markdown(text, &[]).to_string()
102 <meta charset="utf-8">
103 <meta name="viewport" content="width=device-width, initial-scale=1.0">
104 <meta name="generator" content="rustdoc">
105 <title>{title}</title>
110 <body class="rustdoc">
112 <div class="warning">
113 This old browser is unsupported and will most likely display funky
119 <h1 class="title">{title}</h1>
124 title = Escape(title),
126 in_header = external_html.in_header,
127 before_content = external_html.before_content,
129 after_content = external_html.after_content,
134 diag.struct_err(&format!("cannot write to `{}`: {}", output.display(), e)).emit();
141 /// Run any tests/code examples in the markdown file `input`.
142 pub fn test(input: &str, cfgs: Vec<String>, libs: SearchPaths, externs: Externs,
143 mut test_args: Vec<String>, maybe_sysroot: Option<PathBuf>,
144 display_warnings: bool, linker: Option<PathBuf>, edition: Edition,
145 cg: CodegenOptions, diag: &errors::Handler) -> isize {
146 let input_str = match load_string(input, diag) {
148 Err(LoadStringError::ReadFail) => return 1,
149 Err(LoadStringError::BadUtf8) => return 2,
152 let mut opts = TestOptions::default();
153 opts.no_crate_inject = true;
154 opts.display_warnings = display_warnings;
155 let mut collector = Collector::new(input.to_owned(), cfgs, libs, cg, externs,
156 true, opts, maybe_sysroot, None,
157 Some(PathBuf::from(input)),
159 find_testable_code(&input_str, &mut collector, DUMMY_SP, None);
160 test_args.insert(0, "rustdoctest".to_string());
161 testing::test_main(&test_args, collector.tests,
162 testing::Options::new().display_output(display_warnings));