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use std::default::Default;
use std::fs::File;
use std::io::prelude::*;
use std::io;
use std::path::{PathBuf, Path};
use core;
use getopts;
use testing;
use rustc::session::search_paths::SearchPaths;
use externalfiles::ExternalHtml;
use html::escape::Escape;
use html::markdown;
use html::markdown::{Markdown, MarkdownWithToc, find_testable_code, reset_headers};
use test::{TestOptions, Collector};
fn extract_leading_metadata<'a>(s: &'a str) -> (Vec<&'a str>, &'a str) {
let mut metadata = Vec::new();
for line in s.lines() {
if line.starts_with("%") {
metadata.push(line[1..].trim_left())
} else {
let line_start_byte = s.subslice_offset(line);
return (metadata, &s[line_start_byte..]);
}
}
(metadata, "")
}
pub fn render(input: &str, mut output: PathBuf, matches: &getopts::Matches,
external_html: &ExternalHtml, include_toc: bool) -> isize {
let input_p = Path::new(input);
output.push(input_p.file_stem().unwrap());
output.set_extension("html");
let mut css = String::new();
for name in &matches.opt_strs("markdown-css") {
let s = format!("<link rel=\"stylesheet\" type=\"text/css\" href=\"{}\">\n", name);
css.push_str(&s)
}
let input_str = load_or_return!(input, 1, 2);
let playground = matches.opt_str("markdown-playground-url");
if playground.is_some() {
markdown::PLAYGROUND_KRATE.with(|s| { *s.borrow_mut() = Some(None); });
}
let playground = playground.unwrap_or("".to_string());
let mut out = match File::create(&output) {
Err(e) => {
let _ = writeln!(&mut io::stderr(),
"error opening `{}` for writing: {}",
output.display(), e);
return 4;
}
Ok(f) => f
};
let (metadata, text) = extract_leading_metadata(&input_str);
if metadata.is_empty() {
let _ = writeln!(&mut io::stderr(),
"invalid markdown file: expecting initial line with `% ...TITLE...`");
return 5;
}
let title = metadata[0];
reset_headers();
let rendered = if include_toc {
format!("{}", MarkdownWithToc(text))
} else {
format!("{}", Markdown(text))
};
let err = write!(
&mut out,
r#"<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="generator" content="rustdoc">
<title>{title}</title>
{css}
{in_header}
</head>
<body class="rustdoc">
<!--[if lte IE 8]>
<div class="warning">
This old browser is unsupported and will most likely display funky
things.
</div>
<![endif]-->
{before_content}
<h1 class="title">{title}</h1>
{text}
<script type="text/javascript">
window.playgroundUrl = "{playground}";
</script>
{after_content}
</body>
</html>"#,
title = Escape(title),
css = css,
in_header = external_html.in_header,
before_content = external_html.before_content,
text = rendered,
after_content = external_html.after_content,
playground = playground,
);
match err {
Err(e) => {
let _ = writeln!(&mut io::stderr(),
"error writing to `{}`: {}",
output.display(), e);
6
}
Ok(_) => 0
}
}
pub fn test(input: &str, libs: SearchPaths, externs: core::Externs,
mut test_args: Vec<String>) -> isize {
let input_str = load_or_return!(input, 1, 2);
let mut opts = TestOptions::default();
opts.no_crate_inject = true;
let mut collector = Collector::new(input.to_string(), libs, externs,
true, opts);
find_testable_code(&input_str, &mut collector);
test_args.insert(0, "rustdoctest".to_string());
testing::test_main(&test_args, collector.tests);
0
}