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v/cmd/tools/vdoc/html.v

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module main
import os
import net.urllib
import strings
import markdown
import v.scanner
import v.table
import v.token
import v.doc
import v.pref
const (
css_js_assets = ['doc.css', 'normalize.css', 'doc.js', 'dark-mode.js']
res_path = os.resource_abs_path('resources')
favicons_path = os.join_path(res_path, 'favicons')
link_svg = '<svg xmlns="http://www.w3.org/2000/svg" height="24" viewBox="0 0 24 24" width="24"><path d="M0 0h24v24H0z" fill="none"/><path d="M3.9 12c0-1.71 1.39-3.1 3.1-3.1h4V7H7c-2.76 0-5 2.24-5 5s2.24 5 5 5h4v-1.9H7c-1.71 0-3.1-1.39-3.1-3.1zM8 13h8v-2H8v2zm9-6h-4v1.9h4c1.71 0 3.1 1.39 3.1 3.1s-1.39 3.1-3.1 3.1h-4V17h4c2.76 0 5-2.24 5-5s-2.24-5-5-5z"/></svg>'
html_content = '<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="x-ua-compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>{{ title }} | vdoc</title>
<link rel="preconnect" href="https://fonts.gstatic.com">
<link href="https://fonts.googleapis.com/css2?family=Roboto:wght@400;500;700&display=swap" rel="stylesheet">
<link href="https://fonts.googleapis.com/css2?family=Work+Sans:wght@400;500;600&display=swap" rel="stylesheet">
<link rel="apple-touch-icon" sizes="180x180" href="apple-touch-icon.png">
<link rel="icon" type="image/png" sizes="32x32" href="favicon-32x32.png">
<link rel="icon" type="image/png" sizes="16x16" href="favicon-16x16.png">
<link rel="manifest" href="site.webmanifest">
<link rel="mask-icon" href="safari-pinned-tab.svg" color="#5bbad5">
<meta name="msapplication-TileColor" content="#da532c">
<meta name="theme-color" content="#ffffff">
{{ head_assets }}
</head>
<body>
<div id="page">
<header class="doc-nav hidden">
<div class="heading-container">
<div class="heading">
<div class="info">
<div class="module">{{ head_name }}</div>
<div class="toggle-version-container">
<span>{{ version }}</span>
<div id="dark-mode-toggle" role="switch" aria-checked="false" aria-label="Toggle dark mode">{{ light_icon }}{{ dark_icon }}</div>
</div>
{{ menu_icon }}
</div>
<input type="text" id="search" placeholder="Search... (beta)" autocomplete="off">
</div>
</div>
<nav class="search hidden"></nav>
<nav class="content hidden">
<ul>
{{ toc_links }}
</ul>
</nav>
</header>
<div class="doc-scrollview">
<div class="doc-container">
<div class="doc-content">
{{ contents }}
<div class="footer">
{{ footer_content }}
</div>
</div>
{{ right_content }}
</div>
</div>
</div>
{{ footer_assets }}
<script async src="search_index.js" type="text/javascript"></script>
</body>
</html>'
)
enum HighlightTokenTyp {
unone
boolean
builtin
char
comment
function
keyword
name
number
operator
punctuation
string
symbol
}
struct SearchModuleResult {
description string
link string
}
struct SearchResult {
prefix string
badge string
description string
link string
}
fn (vd VDoc) render_search_index(out Output) {
mut js_search_index := strings.new_builder(200)
mut js_search_data := strings.new_builder(200)
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js_search_index.write_string('var searchModuleIndex = [')
js_search_data.write_string('var searchModuleData = [')
for i, title in vd.search_module_index {
data := vd.search_module_data[i]
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js_search_index.write_string('"$title",')
js_search_data.write_string('["$data.description","$data.link"],')
}
js_search_index.writeln('];')
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js_search_index.write_string('var searchIndex = [')
js_search_data.writeln('];')
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js_search_data.write_string('var searchData = [')
for i, title in vd.search_index {
data := vd.search_data[i]
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js_search_index.write_string('"$title",')
// array instead of object to reduce file size
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js_search_data.write_string('["$data.badge","$data.description","$data.link","$data.prefix"],')
}
js_search_index.writeln('];')
js_search_data.writeln('];')
out_file_path := os.join_path(out.path, 'search_index.js')
os.write_file(out_file_path, js_search_index.str() + js_search_data.str()) or { panic(err) }
}
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fn (mut vd VDoc) render_static_html(out Output) {
vd.assets = map{
'doc_css': vd.get_resource(css_js_assets[0], out)
'normalize_css': vd.get_resource(css_js_assets[1], out)
'doc_js': vd.get_resource(css_js_assets[2], out)
'dark_mode_js': vd.get_resource(css_js_assets[3], out)
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'light_icon': vd.get_resource('light.svg', out)
'dark_icon': vd.get_resource('dark.svg', out)
'menu_icon': vd.get_resource('menu.svg', out)
'arrow_icon': vd.get_resource('arrow.svg', out)
}
}
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fn (vd VDoc) get_resource(name string, out Output) string {
cfg := vd.cfg
path := os.join_path(res_path, name)
mut res := os.read_file(path) or { panic('vdoc: could not read $path') }
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/*
if minify {
if name.ends_with('.js') {
res = js_compress(res)
} else {
res = res.split_into_lines().map(it.trim_space()).join('')
}
}
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*/
// TODO: Make SVG inline for now
if cfg.inline_assets || path.ends_with('.svg') {
return res
} else {
output_path := os.join_path(out.path, name)
if !os.exists(output_path) {
println('Generating $out.typ in "$output_path"')
os.write_file(output_path, res) or { panic(err) }
}
return name
}
}
fn (mut vd VDoc) collect_search_index(out Output) {
cfg := vd.cfg
for doc in vd.docs {
mod := doc.head.name
vd.search_module_index << mod
comments := if cfg.include_examples {
doc.head.merge_comments()
} else {
doc.head.merge_comments_without_examples()
}
vd.search_module_data << SearchModuleResult{
description: trim_doc_node_description(comments)
link: vd.get_file_name(mod, out)
}
for _, dn in doc.contents {
vd.create_search_results(mod, dn, out)
}
}
}
fn (mut vd VDoc) create_search_results(mod string, dn doc.DocNode, out Output) {
cfg := vd.cfg
if dn.kind == .const_group {
return
}
comments := if cfg.include_examples {
dn.merge_comments()
} else {
dn.merge_comments_without_examples()
}
dn_description := trim_doc_node_description(comments)
vd.search_index << dn.name
vd.search_data << SearchResult{
prefix: if dn.parent_name != '' { '$dn.kind ($dn.parent_name)' } else { '$dn.kind ' }
description: dn_description
badge: mod
link: vd.get_file_name(mod, out) + '#' + get_node_id(dn)
}
for child in dn.children {
vd.create_search_results(mod, child, out)
}
}
fn (vd VDoc) write_content(cn &doc.DocNode, d &doc.Doc, mut hw strings.Builder) {
cfg := vd.cfg
base_dir := os.dir(os.real_path(cfg.input_path))
file_path_name := if cfg.is_multi {
cn.file_path.replace('$base_dir/', '')
} else {
os.file_name(cn.file_path)
}
src_link := get_src_link(vd.manifest.repo_url, file_path_name, cn.pos.line)
if cn.content.len != 0 || (cn.name == 'Constants') {
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hw.write_string(doc_node_html(cn, src_link, false, cfg.include_examples, d.table))
}
for child in cn.children {
child_file_path_name := child.file_path.replace('$base_dir/', '')
child_src_link := get_src_link(vd.manifest.repo_url, child_file_path_name, child.pos.line)
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hw.write_string(doc_node_html(child, child_src_link, false, cfg.include_examples,
d.table))
}
}
fn (vd VDoc) gen_html(d doc.Doc) string {
cfg := vd.cfg
mut symbols_toc := strings.new_builder(200)
mut modules_toc := strings.new_builder(200)
mut contents := strings.new_builder(200)
dcs_contents := d.contents.arr()
// generate toc first
contents.writeln(doc_node_html(d.head, '', true, cfg.include_examples, d.table))
if is_module_readme(d.head) {
write_toc(d.head, mut symbols_toc)
}
for cn in dcs_contents {
vd.write_content(&cn, &d, mut contents)
write_toc(cn, mut symbols_toc)
} // write head
// write css
version := if vd.manifest.version.len != 0 { vd.manifest.version } else { '' }
header_name := if cfg.is_multi && vd.docs.len > 1 {
os.file_name(os.real_path(cfg.input_path))
} else {
d.head.name
}
// write nav1
if cfg.is_multi || vd.docs.len > 1 {
mut submod_prefix := ''
for i, dc in vd.docs {
if i - 1 >= 0 && dc.head.name.starts_with(submod_prefix + '.') {
continue
}
names := dc.head.name.split('.')
submod_prefix = if names.len > 1 { names[0] } else { dc.head.name }
mut href_name := './${dc.head.name}.html'
if (cfg.is_vlib && dc.head.name == 'builtin' && !cfg.include_readme)
|| dc.head.name == 'README' {
href_name = './index.html'
} else if submod_prefix !in vd.docs.map(it.head.name) {
href_name = '#'
}
submodules := vd.docs.filter(it.head.name.starts_with(submod_prefix + '.'))
dropdown := if submodules.len > 0 { vd.assets['arrow_icon'] } else { '' }
active_class := if dc.head.name == d.head.name { ' active' } else { '' }
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modules_toc.write_string('<li class="open$active_class"><div class="menu-row">$dropdown<a href="$href_name">$submod_prefix</a></div>')
for j, cdoc in submodules {
if j == 0 {
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modules_toc.write_string('<ul>')
}
submod_name := cdoc.head.name.all_after(submod_prefix + '.')
sub_selected_classes := if cdoc.head.name == d.head.name {
' class="active"'
} else {
''
}
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modules_toc.write_string('<li$sub_selected_classes><a href="./${cdoc.head.name}.html">$submod_name</a></li>')
if j == submodules.len - 1 {
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modules_toc.write_string('</ul>')
}
}
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modules_toc.write_string('</li>')
}
}
modules_toc_str := modules_toc.str()
symbols_toc_str := symbols_toc.str()
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result := html_content.replace('{{ title }}', d.head.name).replace('{{ head_name }}',
header_name).replace('{{ version }}', version).replace('{{ light_icon }}', vd.assets['light_icon']).replace('{{ dark_icon }}',
vd.assets['dark_icon']).replace('{{ menu_icon }}', vd.assets['menu_icon']).replace('{{ head_assets }}',
if cfg.inline_assets {
'\n${tabs[0]}<style>' + vd.assets['doc_css'] + '</style>\n${tabs[0]}<style>' +
vd.assets['normalize_css'] + '</style>\n${tabs[0]}<script>' +
vd.assets['dark_mode_js'] + '</script>'
} else {
'\n${tabs[0]}<link rel="stylesheet" href="' + vd.assets['doc_css'] +
'" />\n${tabs[0]}<link rel="stylesheet" href="' + vd.assets['normalize_css'] +
'" />\n${tabs[0]}<script src="' + vd.assets['dark_mode_js'] + '"></script>'
}).replace('{{ toc_links }}', if cfg.is_multi || vd.docs.len > 1 {
modules_toc_str
} else {
symbols_toc_str
}).replace('{{ contents }}', contents.str()).replace('{{ right_content }}', if cfg.is_multi
&& vd.docs.len > 1 && d.head.name != 'README' {
'<div class="doc-toc"><ul>' + symbols_toc_str + '</ul></div>'
} else {
''
}).replace('{{ footer_content }}', gen_footer_text(d, !cfg.no_timestamp)).replace('{{ footer_assets }}',
if cfg.inline_assets {
'<script>' + vd.assets['doc_js'] + '</script>'
} else {
'<script src="' + vd.assets['doc_js'] + '"></script>'
})
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return result
}
fn get_src_link(repo_url string, file_name string, line_nr int) string {
mut url := urllib.parse(repo_url) or { return '' }
if url.path.len <= 1 || file_name.len == 0 {
return ''
}
url.path = url.path.trim_right('/') + match url.host {
'github.com' { '/blob/master/$file_name' }
'gitlab.com' { '/-/blob/master/$file_name' }
'git.sir.ht' { '/tree/master/$file_name' }
else { '' }
}
if url.path == '/' {
return ''
}
url.fragment = 'L$line_nr'
return url.str()
}
fn html_highlight(code string, tb &table.Table) string {
builtin := ['bool', 'string', 'i8', 'i16', 'int', 'i64', 'i128', 'byte', 'u16', 'u32', 'u64',
'u128', 'rune', 'f32', 'f64', 'int_literal', 'float_literal', 'byteptr', 'voidptr', 'any']
highlight_code := fn (tok token.Token, typ HighlightTokenTyp) string {
lit := if typ in [.unone, .operator, .punctuation] {
tok.kind.str()
} else if typ == .string {
"'$tok.lit'"
} else if typ == .char {
'`$tok.lit`'
} else {
tok.lit
}
return if typ in [.unone, .name] { lit } else { '<span class="token $typ">$lit</span>' }
}
mut s := scanner.new_scanner(code, .parse_comments, &pref.Preferences{})
mut tok := s.scan()
mut next_tok := s.scan()
mut buf := strings.new_builder(200)
mut i := 0
for i < code.len {
if i == tok.pos {
mut tok_typ := HighlightTokenTyp.unone
match tok.kind {
.name {
if tok.lit in builtin || tb.known_type(tok.lit) {
tok_typ = .builtin
} else if next_tok.kind == .lcbr {
tok_typ = .symbol
} else if next_tok.kind == .lpar {
tok_typ = .function
} else {
tok_typ = .name
}
}
.comment {
tok_typ = .comment
}
.chartoken {
tok_typ = .char
}
.string {
tok_typ = .string
}
.number {
tok_typ = .number
}
.key_true, .key_false {
tok_typ = .boolean
}
.lpar, .lcbr, .rpar, .rcbr, .lsbr, .rsbr, .semicolon, .colon, .comma, .dot {
tok_typ = .punctuation
}
else {
if token.is_key(tok.lit) || token.is_decl(tok.kind) {
tok_typ = .keyword
} else if tok.kind == .decl_assign || tok.kind.is_assign() || tok.is_unary()
|| tok.kind.is_relational() || tok.kind.is_infix() {
tok_typ = .operator
}
}
}
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buf.write_string(highlight_code(tok, tok_typ))
if next_tok.kind != .eof {
i = tok.pos + tok.len
tok = next_tok
next_tok = s.scan()
} else {
break
}
} else {
buf.write_b(code[i])
i++
}
}
return buf.str()
}
fn doc_node_html(dn doc.DocNode, link string, head bool, include_examples bool, tb &table.Table) string {
mut dnw := strings.new_builder(200)
head_tag := if head { 'h1' } else { 'h2' }
comments := dn.merge_comments_without_examples()
// Allow README.md to go through unescaped except for script tags
escaped_html := if head && is_module_readme(dn) {
// Strip markdown [TOC] directives, since we generate our own.
stripped := comments.replace('[TOC]', '')
markdown_escape_script_tags(stripped)
} else {
html_tag_escape(comments)
}
md_content := markdown.to_html(escaped_html)
hlighted_code := html_highlight(dn.content, tb)
node_class := if dn.kind == .const_group { ' const' } else { '' }
sym_name := get_sym_name(dn)
mut node_id := get_node_id(dn)
mut hash_link := if !head { ' <a href="#$node_id">#</a>' } else { '' }
if head && is_module_readme(dn) {
node_id = 'readme_$node_id'
hash_link = ' <a href="#$node_id">#</a>'
}
dnw.writeln('${tabs[1]}<section id="$node_id" class="doc-node$node_class">')
if dn.name.len > 0 {
if dn.kind == .const_group {
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dnw.write_string('${tabs[2]}<div class="title"><$head_tag>$sym_name$hash_link</$head_tag>')
} else {
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dnw.write_string('${tabs[2]}<div class="title"><$head_tag>$dn.kind $sym_name$hash_link</$head_tag>')
}
if link.len != 0 {
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dnw.write_string('<a class="link" rel="noreferrer" target="_blank" href="$link">$link_svg</a>')
}
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dnw.write_string('</div>')
}
if !head && dn.content.len > 0 {
dnw.writeln('<pre class="signature"><code>$hlighted_code</code></pre>')
}
// do not mess with md_content further, its formatting is important, just output it 1:1 !
dnw.writeln('$md_content\n')
// Write examples if any found
examples := dn.examples()
if include_examples && examples.len > 0 {
example_title := if examples.len > 1 { 'Examples' } else { 'Example' }
dnw.writeln('<section class="doc-node examples"><h4>$example_title</h4>')
for example in examples {
// hl_example := html_highlight(example, tb)
dnw.writeln('<pre><code class="language-v">$example</code></pre>')
}
dnw.writeln('</section>')
}
dnw.writeln('</section>')
dnw_str := dnw.str()
return dnw_str
}
fn html_tag_escape(str string) string {
return str.replace_each(['<', '&lt;', '>', '&gt;'])
}
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/*
fn js_compress(str string) string {
mut js := strings.new_builder(200)
lines := str.split_into_lines()
rules := [') {', ' = ', ', ', '{ ', ' }', ' (', '; ', ' + ', ' < ', ' - ', ' || ', ' var',
': ', ' >= ', ' && ', ' else if', ' === ', ' !== ', ' else ']
clean := ['){', '=', ',', '{', '}', '(', ';', '+', '<', '-', '||', 'var', ':', '>=', '&&',
'else if', '===', '!==', 'else']
for line in lines {
mut trimmed := line.trim_space()
if trimmed.starts_with('//') || (trimmed.starts_with('/*') && trimmed.ends_with('*/')) {
continue
}
for i in 0 .. rules.len - 1 {
trimmed = trimmed.replace(rules[i], clean[i])
}
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js.write_string(trimmed)
}
js_str := js.str()
return js_str
}
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*/
fn write_toc(dn doc.DocNode, mut toc strings.Builder) {
mut toc_slug := if dn.name.len == 0 || dn.content.len == 0 { '' } else { slug(dn.name) }
if toc_slug == '' && dn.children.len > 0 {
if dn.children[0].name == '' {
toc_slug = slug(dn.name)
} else {
toc_slug = slug(dn.name + '.' + dn.children[0].name)
}
}
if is_module_readme(dn) {
if dn.comments.len == 0 || (dn.comments.len > 0 && dn.comments[0].text.len == 0) {
return
}
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toc.write_string('<li class="open"><a href="#readme_$toc_slug">README</a>')
} else if dn.name != 'Constants' {
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toc.write_string('<li class="open"><a href="#$toc_slug">$dn.kind $dn.name</a>')
toc.writeln(' <ul>')
for child in dn.children {
cname := dn.name + '.' + child.name
toc.writeln('<li><a href="#${slug(cname)}">$child.kind $child.name</a></li>')
}
toc.writeln('</ul>')
} else {
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toc.write_string('<li class="open"><a href="#$toc_slug">$dn.name</a>')
}
toc.writeln('</li>')
}