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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 getopts;
use testing;
use rustc::session::search_paths::SearchPaths;
use rustc::session::config::Externs;
use syntax::codemap::DUMMY_SP;
use externalfiles::{ExternalHtml, LoadStringError, load_string};
use html::render::reset_ids;
use html::escape::Escape;
use html::markdown;
use html::markdown::{Markdown, MarkdownWithToc, find_testable_code};
use test::{TestOptions, Collector};
fn extract_leading_metadata<'a>(s: &'a str) -> (Vec<&'a str>, &'a str) {
let mut metadata = Vec::new();
let mut count = 0;
for line in s.lines() {
if line.starts_with("%") {
metadata.push(line[1..].trim_left());
count += line.len() + 1;
} else {
return (metadata, &s[count..]);
}
}
(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 = match load_string(input) {
Ok(s) => s,
Err(LoadStringError::ReadFail) => return 1,
Err(LoadStringError::BadUtf8) => return 2,
};
if let Some(playground) = matches.opt_str("markdown-playground-url").or(
matches.opt_str("playground-url")) {
markdown::PLAYGROUND.with(|s| { *s.borrow_mut() = Some((None, playground)); });
}
let mut out = match File::create(&output) {
Err(e) => {
let _ = writeln!(&mut io::stderr(),
"rustdoc: {}: {}",
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(),
"rustdoc: invalid markdown file: expecting initial line with `% ...TITLE...`"
);
return 5;
}
let title = metadata[0];
reset_ids(false);
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}
{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,
);
match err {
Err(e) => {
let _ = writeln!(&mut io::stderr(),
"rustdoc: cannot write to `{}`: {}",
output.display(), e);
6
}
Ok(_) => 0
}
}
pub fn test(input: &str, cfgs: Vec<String>, libs: SearchPaths, externs: Externs,
mut test_args: Vec<String>, maybe_sysroot: Option<PathBuf>) -> isize {
let input_str = match load_string(input) {
Ok(s) => s,
Err(LoadStringError::ReadFail) => return 1,
Err(LoadStringError::BadUtf8) => return 2,
};
let mut opts = TestOptions::default();
opts.no_crate_inject = true;
let mut collector = Collector::new(input.to_string(), cfgs, libs, externs,
true, opts, maybe_sysroot, None,
Some(input.to_owned()));
find_testable_code(&input_str, &mut collector, DUMMY_SP);
test_args.insert(0, "rustdoctest".to_string());
testing::test_main(&test_args, collector.tests);
0
}