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<script src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.11.1/highlight.min.js" async></script>
<script>
const VROOT = "/";
function repoPathFromLink( a ) {
const href = new URL( a.getAttribute( "href" ), location.href );
let p = href.pathname;
if( !p.startsWith( VROOT ) ) return null;
p = p.slice( VROOT.length );
p = p.replace( /\/+$/, "" );
if( !p ) return null;
return p;
}
function branchFromForm() {
const formWrap = document.querySelector( ".form" );
const form = formWrap.querySelector( "form" );
const branchEl = form.querySelector( "select" );
if( !branchEl )
return "";
const branch = branchEl.value;
if( !branch )
return "";
return branch;
}
async function getFile( repo, branch, file ) {
try {
const res = await fetch( `https://${location.host}/${repo}/plain/${file}` );
if( !res.ok )
return null;
return await res.text();
} catch( e ) {
return null;
}
}
function isWhiteChar( char ) {
return char === " " || char === "\t" || char === "\n" || char === "\r";
}
function removeTrailingWhiteSpace( text ) {
while( text.length > 1
&& isWhiteChar( text[text.length - 1] )
&& isWhiteChar( text[text.length - 2] )
) {
text = text.slice( 0, -1 );
}
return text;
}
async function getReadmeFile( repo, branch ) {
let file = await getFile( repo, branch, "README.md" );
if( file )
return { file: removeTrailingWhiteSpace( file ), isMd: true };
file = await getFile( repo, branch, "README" );
if( file )
return { file: removeTrailingWhiteSpace( file ), isMd: false };
return null;
}
function isIndex( repo ) {
let path = location.pathname;
return path.replaceAll( "/", "" ) === repo;
}
function parseLink( text, start ) {
let isImg = 0;
const open = text.indexOf( "[", start );
if( open === -1 ) return null;
const close = text.indexOf( "]", open );
if( close === -1 ) return null;
const lopen = text.indexOf( "(", close );
if( lopen === -1 ) return null;
const lclose = text.indexOf( ")", lopen );
if( lclose === -1 ) return null;
const title = text.substring( open + 1, close );
const link = text.substring( lopen + 1, lclose );
if( open > 0 && text[open-1] == "!" ) isImg = 1;
return { title, link, start: open - (isImg?1:0), end: lclose + 1, img: isImg };
}
function parseLinks( text ) {
let start = 0;
const links = [];
while( true ) {
const res = parseLink( text, start );
if( !res )
break;
links.push( res );
start = res.end + 1;
}
return links;
}
function replaceLinks( text, links ) {
let offset = 0;
for( let link of links ) {
const start = link.start + offset;
const end = link.end + offset;
const textFirst = text.slice( 0, start );
const textSecond = text.slice( end );
let textMid = "";
if( link.img ) {
textMid = `<img src="${link.link}" alt="${link.title}" />`;
} else {
textMid = `<a href="${link.link}">${link.title}</a>`;
}
text = textFirst + textMid + textSecond;
offset += textMid.length - ( link.end - link.start );
}
return text;
}
function replaceCodeTicks( text ) {
let inBlock = 0;
let tick = text.indexOf( "```" );
while( tick != -1 ) {
if( inBlock == 0 ) {
let second = text.slice( tick + 3 );
while( isWhiteChar( second[0] ) )
second = second.slice( 1 );
text = text.slice( 0, tick ) + "<code>" + second;
tick = text.indexOf( "```", tick + 3 );
} else {
let second = text.slice( tick + 3 );
while( second.length > 1 && isWhiteChar( second[0] ) && isWhiteChar( second[1] ) )
second = second.slice( 1 );
text = text.slice( 0, tick ) + "</code>" + second;
tick = text.indexOf( "```", tick + 3 );
}
inBlock = !inBlock;
}
return text;
}
function runHighlight() {
if( hljs === undefined || !hljs )
return setTimeout( runHighlight, 200 );
hljs.highlightAll();
}
function createReadme( text, isMd ) {
const tr = document.createElement( "tr" );
const td = document.createElement( "td" );
const pre = document.createElement( "pre" );
tr.appendChild( td );
td.appendChild( pre );
td.setAttribute( "colspan", "4" );
if( !isMd )
pre.innerHTML = text;
else {
const noTicks = replaceCodeTicks( text );
const links = parseLinks( noTicks );
pre.innerHTML = replaceLinks( noTicks, links );
}
pre.style.whiteSpace = "pre-wrap";
pre.style.fontFamily = "JPN12";
pre.style.padding = 0;
pre.style.marginTop = "0px";
pre.style.marginBottom = "0px";
tr.classList.add( "nohover" );
tr.style.backgroundColor = "#808080"
const list = document.querySelector( ".list" );
const tbody = list.querySelector( "tbody" );
tbody.insertBefore( tr, tbody.children[3] );
const th = document.createElement( "th" );
th.classList.add( "left" );
th.setAttribute( "colspan", "4" );
th.innerHTML = "Readme";
tbody.insertBefore( th, tr );
setTimeout( runHighlight );
}
function isCodeView() {
return location.pathname.includes( "/tree/src" );
}
const main = async () => {
if( isCodeView() ) {
return setTimeout( runHighlight );
}
const mainEl = document.querySelector( ".main" );
if( !mainEl )
return;
const repoEl = mainEl.querySelectorAll( "a" )[1];
if( !repoEl )
return;
const repo = repoPathFromLink( repoEl );
if( !repo )
return;
if( !isIndex( repo ) )
return;
const branch = branchFromForm();
const { file, isMd } = await getReadmeFile( repo, branch );
createReadme( file, isMd );
}
setTimeout( main );
</script>
<link rel="stylesheet" href="https://networkheaven.net/static/highlight.css" type="text/css" />
|
