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mirror of https://github.com/vlang/v.git synced 2023-08-10 21:13:21 +03:00
v/cmd/tools/vdoc.v
2020-06-11 00:52:41 +02:00

801 lines
22 KiB
V

module main
import markdown
import net
import net.urllib
import os
import os.cmdline
import time
import strings
import v.doc
import v.scanner
import v.table
import v.token
import v.vmod
enum HighlightTokenTyp {
unone
boolean
builtin
char
comment
function
keyword
name
number
operator
punctuation
string
symbol
}
const (
css_js_assets = ['doc.css', 'normalize.css' 'doc.js']
allowed_formats = ['md', 'markdown', 'json', 'text', 'stdout', 'html', 'htm']
exe_path = os.executable()
exe_dir = os.dir(exe_path)
res_path = os.join_path(exe_dir, 'vdoc-resources')
vexe_path = os.base_dir(@VEXE)
)
enum OutputType {
unset
html
markdown
json
plaintext
stdout
}
struct DocConfig {
mut:
pub_only bool = true
show_loc bool = false // for plaintext
serve_http bool = false // for html
is_multi bool = false
is_verbose bool = false
include_readme bool = false
open_docs bool = false
server_port int = 8046
inline_assets bool = false
output_path string
input_path string
output_type OutputType = .unset
docs []doc.Doc
manifest vmod.Manifest
}
fn slug(title string) string {
return title.replace(' ', '-')
}
fn open_url(url string) {
$if windows {
os.system('start $url')
}
$if macos {
os.system('open $url')
}
$if linux {
os.system('xdg-open $url')
}
}
fn (mut cfg DocConfig) serve_html() {
server_url := 'http://localhost:' + cfg.server_port.str()
docs := cfg.render()
def_name := docs.keys()[0]
server := net.listen(cfg.server_port) or {
panic(err)
}
println('Serving docs on: $server_url')
if cfg.open_docs {
open_url(server_url)
}
for {
con := server.accept() or {
server.close() or { }
panic(err)
}
s := con.read_line()
first_line := s.all_before('\n')
mut filename := def_name
if first_line.len != 0 {
data := first_line.split(' ')
url := urllib.parse(data[1]) or { return }
filename = if url.path == '/' { def_name } else { url.path.trim_left('/') }
}
html := docs[filename]
con.write('HTTP/1.1 200 OK\r\nContent-Type: text/html\r\n\r\n$html') or {
con.close() or { return }
return
}
con.close() or { return }
}
}
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/$file_name' }
else { '' }
}
if repo_url.starts_with('https://github.com/vlang/v') && !url.path.contains('master/vlib') {
url.path = url.path.replace('/blob/master/$file_name', '/blob/master/vlib/$file_name')
}
if url.path == '/' { return '' }
url.fragment = 'L$line_nr'
return url.str()
}
fn js_compress(str string) string {
mut js := strings.new_builder(200)
lines := str.split_into_lines()
rules := [') {', ' = ', ', ', '{ ', ' }', ' (', '; ', ' + ', ' < ']
clean := ['){', '=', ',', '{', '}', '(', ';', '+', '<']
for line in lines {
mut trimmed := line.trim_space()
if trimmed.starts_with('//') || (trimmed.starts_with('/*') && trimmed.ends_with('*/')) { continue }
for i, _ in rules {
trimmed = trimmed.replace(rules[i], clean[i])
}
js.write(trimmed)
}
return js.str()
}
fn escape(str string) string {
return str.replace_each(['"', '\\"', '\r\n', '\\n', '\n', '\\n'])
}
fn (cfg DocConfig) gen_json(idx int) string {
dcs := cfg.docs[idx]
mut jw := strings.new_builder(200)
jw.writeln('{\n\t"module_name": "$dcs.head.name",\n\t"description": "${escape(dcs.head.comment)}",\n\t"contents": [')
for i, cn in dcs.contents {
name := cn.name.all_after(dcs.head.name)
jw.writeln('\t\t{')
jw.writeln('\t\t\t"name": "$name",')
jw.writeln('\t\t\t"signature": "${escape(cn.content)}",')
jw.writeln('\t\t\t"description": "${escape(cn.comment)}"')
jw.write('\t\t}')
if i < dcs.contents.len-1 { jw.writeln(',') }
}
jw.writeln('\n\t],')
jw.write('\t"generator": "vdoc",\n\t"time_generated": "${dcs.time_generated.str()}"\n}')
return jw.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', 'any_int', 'any_float', '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>' }
}
s := scanner.new_scanner(code, .parse_comments)
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
}
}
}
buf.write(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(dd doc.DocNode, link string, head bool, tb &table.Table) string {
mut dnw := strings.new_builder(200)
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>'
head_tag := if head { 'h1' } else { 'h2' }
md_content := markdown.to_html(dd.comment)
hlighted_code := html_highlight(dd.content, tb)
is_const_class := if dd.name == 'Constants' { ' const' } else { '' }
mut sym_name := dd.name
if dd.parent_type !in ['void', '', 'Constants'] {
sym_name = '${dd.parent_type}.' + sym_name
}
node_id := slug(sym_name)
hash_link := if !head { ' <a href="#$node_id">#</a>' } else { '' }
dnw.writeln('<section id="$node_id" class="doc-node$is_const_class">')
if dd.name != 'README' && dd.parent_type != 'Constants' {
dnw.write('<div class="title"><$head_tag>$sym_name$hash_link</$head_tag>')
if link.len != 0 {
dnw.write('<a class="link" rel="noreferrer" target="_blank" href="$link">$link_svg</a>')
}
dnw.write('</div>')
}
if head {
dnw.write(md_content)
} else {
dnw.writeln('<pre class="signature"><code>$hlighted_code</code></pre>')
dnw.writeln(md_content)
}
dnw.writeln('</section>')
return dnw.str()
}
fn write_toc(cn doc.DocNode, nodes []doc.DocNode, toc &strings.Builder) {
toc.write('<li><a href="#${slug(cn.name)}">${cn.name}</a>')
children := nodes.find_children_of(cn.name)
if children.len != 0 && cn.name != 'Constants' {
toc.writeln(' <ul>')
for child in children {
cname := cn.name + '.' + child.name
toc.writeln('<li><a href="#${slug(cname)}">${child.name}</a></li>')
}
toc.writeln('</ul>')
}
toc.writeln('</li>')
}
fn (cfg DocConfig) write_content(cn &doc.DocNode, dcs &doc.Doc, hw &strings.Builder) {
base_dir := os.base_dir(os.real_path(cfg.input_path))
file_path_name := cn.file_path.replace('$base_dir/', '')
src_link := get_src_link(cfg.manifest.repo_url, file_path_name, cn.pos.line)
children := dcs.contents.find_children_of(cn.name)
hw.write(doc_node_html(cn, src_link, false, dcs.table))
if children.len != 0 {
for child in children {
child_file_path_name := child.file_path.replace('$base_dir/', '')
child_src_link := get_src_link(cfg.manifest.repo_url, child_file_path_name, child.pos.line)
hw.write(doc_node_html(child, child_src_link, false, dcs.table))
}
}
}
fn (cfg DocConfig) gen_html(idx int) string {
dcs := cfg.docs[idx]
time_gen := '$dcs.time_generated.day $dcs.time_generated.smonth() $dcs.time_generated.year $dcs.time_generated.hhmmss()'
mut hw := strings.new_builder(200)
mut toc := strings.new_builder(200)
// generate toc first
const_node_idx := dcs.contents.index_by_name('Constants') or { -1 }
if const_node_idx != -1 {
write_toc(dcs.contents[const_node_idx], dcs.contents, &toc)
}
for cn in dcs.contents {
if cn.name == 'Constants' || cn.parent_type !in ['void', ''] { continue }
write_toc(cn, dcs.contents, &toc)
} // write head
// get resources
doc_css := cfg.get_resource(css_js_assets[0], true)
normalize_css := cfg.get_resource(css_js_assets[1], true)
doc_js := cfg.get_resource(css_js_assets[2], !cfg.serve_http)
light_icon := cfg.get_resource('light.svg', true)
dark_icon := cfg.get_resource('dark.svg', true)
menu_icon := cfg.get_resource('menu.svg', true)
arrow_icon := cfg.get_resource('arrow.svg', true)
hw.write('
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="x-ua-compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>${dcs.head.name} | vdoc</title>
<link href="https://fonts.googleapis.com/css2?family=Roboto:wght@400;500;700&display=swap" rel="stylesheet">')
// write css
if cfg.inline_assets {
hw.write('\n <style>$doc_css</style>')
hw.write('\n <style>$normalize_css</style>')
} else {
hw.write('\n <link rel="stylesheet" href="$doc_css" />')
hw.write('\n <link rel="stylesheet" href="$normalize_css" />')
}
version := if cfg.manifest.version.len != 0 { cfg.manifest.version } else { '' }
header_name := if cfg.is_multi && cfg.docs.len > 1 { os.file_name(os.real_path(cfg.input_path)) } else { dcs.head.name }
// write nav1
hw.write('
<body>
<div id="page">
<header class="doc-nav hidden">
<div class="heading-container">
<div class="heading">
<input type="text" id="search" placeholder="Search...">
<div class="module">${header_name}</div>
<div class="toggle-version-container">
<span>${version}</span>
<div id="dark-mode-toggle" role="switch" aria-checked="false" aria-label="Toggle dark mode">$light_icon $dark_icon</div>
</div>
$menu_icon
</div>
</div>
<nav class="content hidden">
<ul>')
if cfg.is_multi && cfg.docs.len > 1 {
mut submod_prefix := ''
mut docs := cfg.docs.filter(it.head.name == 'builtin')
docs << cfg.docs.filter(it.head.name != 'builtin')
for i, doc in docs {
if i-1 >= 0 && doc.head.name.starts_with(submod_prefix + '.') {
continue
}
names := doc.head.name.split('.')
submod_prefix = if names.len > 1 { names[0] } else { doc.head.name }
href_name := if doc.head.name == 'README' {
'./index.html'
} else if submod_prefix !in cfg.docs.map(it.head.name) {
'#'
} else {
'./' + doc.head.name + '.html'
}
submodules := cfg.docs.filter(it.head.name.starts_with(submod_prefix + '.'))
dropdown := if submodules.len > 0 { arrow_icon } else { '' }
mut is_submodule_open := false
for _, cdoc in submodules {
if cdoc.head.name == dcs.head.name {
is_submodule_open = true
}
}
active_class := if doc.head.name == dcs.head.name { ' active' } else { '' }
hw.write('<li class="open$active_class"><div class="menu-row">$dropdown<a href="$href_name">${submod_prefix}</a></div>')
for j, cdoc in submodules {
if j == 0 {
hw.write('<ul>')
}
submod_name := cdoc.head.name.all_after(submod_prefix + '.')
sub_selected_classes := if cdoc.head.name == dcs.head.name { ' class="active"' } else { '' }
hw.write('<li$sub_selected_classes><a href="./${cdoc.head.name}.html">${submod_name}</a></li>')
if j == submodules.len - 1 {
hw.write('</ul>')
}
}
hw.write('</li>')
}
} else {
hw.writeln(toc.str())
}
hw.write('</ul>\n</nav>\n</header>')
hw.write('<div class="doc-container">\n<div class="doc-content">\n')
hw.write(doc_node_html(dcs.head, '', true, dcs.table))
if const_node_idx != -1 {
cfg.write_content(&dcs.contents[const_node_idx], &dcs, &hw)
}
for cn in dcs.contents {
if cn.parent_type !in ['void', ''] || cn.name == 'Constants' { continue }
cfg.write_content(&cn, &dcs, &hw)
}
hw.write('\n<div class="footer">Powered by vdoc. Generated on: $time_gen</div>\n</div>\n')
if cfg.is_multi && cfg.docs.len > 1 && dcs.head.name != 'README' {
hw.write('<div class="doc-toc">\n\n<ul>\n${toc.str()}</ul>\n</div>')
}
hw.write('</div></div>')
if cfg.inline_assets {
hw.write('<script>$doc_js</script>')
} else {
hw.write('<script src="$doc_js"></script>')
}
hw.write('</body>
</html>')
return hw.str()
}
fn (cfg DocConfig) gen_plaintext(idx int) string {
dcs := cfg.docs[idx]
mut pw := strings.new_builder(200)
pw.writeln('${dcs.head.content}\n')
if dcs.head.comment.trim_space().len > 0 {
pw.writeln('// ' + dcs.head.comment.replace('\n', '\n// ') + '\n')
}
for cn in dcs.contents {
pw.writeln(cn.content)
if cn.comment.len > 0 {
pw.writeln('\/\/ ' + cn.comment.trim_space() + '\n')
}
if cfg.show_loc {
pw.writeln('Location: ${cn.file_path}:${cn.pos.line}:${cn.pos.col}\n\n')
}
}
return pw.str()
}
fn (cfg DocConfig) gen_markdown(idx int, with_toc bool) string {
dcs := cfg.docs[idx]
mut hw := strings.new_builder(200)
mut cw := strings.new_builder(200)
hw.writeln('# ${dcs.head.content}\n${dcs.head.comment}\n')
if with_toc {
hw.writeln('## Contents')
}
for cn in dcs.contents {
name := cn.name.all_after(dcs.head.name + '.')
if with_toc {
hw.writeln('- [#$name](${slug(name)})')
}
cw.writeln('## $name')
cw.writeln('```v\n${cn.content}\n```${cn.comment}\n')
cw.writeln('[\[Return to contents\]](#Contents)\n')
}
cw.writeln('#### Generated by vdoc. Last generated: ${dcs.time_generated.str()}')
return hw.str() + '\n' + cw.str()
}
fn (cfg DocConfig) render() map[string]string {
mut docs := map[string]string
for i, doc in cfg.docs {
// since builtin is generated first, ignore it
mut name := if doc.head.name == 'README' {
'index'
} else if !cfg.is_multi && !os.is_dir(cfg.output_path) {
os.file_name(cfg.output_path)
} else {
doc.head.name
}
name = name + match cfg.output_type {
.html { '.html' }
.markdown { '.md' }
.json { '.json' }
else { '.txt' }
}
docs[name] = match cfg.output_type {
.html { cfg.gen_html(i) }
.markdown { cfg.gen_markdown(i, true) }
.json { cfg.gen_json(i) }
else { cfg.gen_plaintext(i) }
}
}
cfg.vprintln('Rendered: ' + docs.keys().str())
return docs
}
fn (cfg DocConfig) get_readme(path string) string {
mut fname := ''
for name in ['readme', 'README'] {
if os.exists(os.join_path(path, '${name}.md')) {
fname = name
break
}
}
if fname == '' {
return ''
}
readme_path := os.join_path(path, '${fname}.md')
cfg.vprintln('Reading README file from $readme_path')
readme_contents := os.read_file(readme_path) or { '' }
return readme_contents
}
fn (mut cfg DocConfig) generate_docs_from_file() {
if cfg.output_path.len == 0 {
if cfg.output_type == .unset {
cfg.output_type = .stdout
} else {
cfg.vprintln('No output path has detected. Using input path instead.')
cfg.output_path = cfg.input_path
}
} else if cfg.output_type == .unset {
cfg.vprintln('Output path detected. Identifying output type..')
ext := os.file_ext(cfg.output_path)
cfg.set_output_type_from_str(ext.all_after('.'))
}
if cfg.include_readme && cfg.output_type !in [.html, .stdout] {
eprintln('vdoc: Including README.md for doc generation is supported on HTML output, or when running directly in the terminal.')
exit(1)
}
is_vlib := 'vlib' in cfg.input_path
dir_path := if is_vlib {
vexe_path
} else if os.is_dir(cfg.input_path) {
cfg.input_path
} else {
os.base_dir(cfg.input_path)
}
manifest_path := os.join_path(dir_path, 'v.mod')
if os.exists(manifest_path) {
cfg.vprintln('Reading v.mod info from $manifest_path')
if manifest := vmod.from_file(manifest_path) {
cfg.manifest = manifest
}
}
if cfg.include_readme {
readme_contents := cfg.get_readme(dir_path)
if cfg.output_type == .stdout {
println(markdown.to_plain(readme_contents))
}
if cfg.output_type == .html {
cfg.docs << doc.Doc{
head: doc.DocNode{
name: 'README',
comment: readme_contents
}
time_generated: time.now()
}
}
}
dirs := if cfg.is_multi { get_modules_list(cfg.input_path) } else { [cfg.input_path] }
for dirpath in dirs {
cfg.vprintln('Generating docs for ${dirpath}...')
mut dcs := doc.generate(dirpath, cfg.pub_only, true) or {
mut err_msg := err
if errcode == 1 {
err_msg += ' Use the `-m` flag if you are generating docs of a directory with multiple modules inside.'
}
eprintln(err_msg)
exit(1)
}
if dcs.contents.len == 0 { continue }
if cfg.is_multi {
readme_contents := cfg.get_readme(dirpath)
dcs.head.comment = readme_contents
}
if cfg.pub_only {
for i, c in dcs.contents {
dcs.contents[i].content = c.content.all_after('pub ')
}
}
cfg.docs << dcs
}
if cfg.serve_http {
cfg.serve_html()
return
}
cfg.vprintln('Rendering docs...')
if cfg.output_path.len == 0 {
outputs := cfg.render()
if outputs.size == 0 {
println('No documentation for $dirs')
} else {
first := outputs.keys()[0]
println(outputs[first])
}
} else {
if !os.is_dir(cfg.output_path) {
cfg.output_path = os.real_path('.')
}
if cfg.is_multi {
cfg.output_path = os.join_path(cfg.output_path, '_docs')
if !os.exists(cfg.output_path) {
os.mkdir(cfg.output_path) or {
panic(err)
}
} else {
for fname in css_js_assets {
os.rm(os.join_path(cfg.output_path, fname))
}
}
}
outputs := cfg.render()
for file_name, content in outputs {
output_path := os.join_path(cfg.output_path, file_name)
println('Generating ${output_path}...')
os.write_file(output_path, content)
}
}
}
fn (mut cfg DocConfig) set_output_type_from_str(format string) {
match format {
'htm', 'html' {
cfg.output_type = .html
}
'md', 'markdown' {
cfg.output_type = .markdown
}
'json' {
cfg.output_type = .json
}
'stdout' {
cfg.output_type = .stdout
}
else {
cfg.output_type = .plaintext
}
}
cfg.vprintln('Setting output type to "$cfg.output_type"')
}
fn (cfg DocConfig) vprintln(str string) {
if cfg.is_verbose {
println('vdoc: $str')
}
}
fn lookup_module(mod string) ?string {
mod_path := mod.replace('.', os.path_separator)
compile_dir := os.real_path(os.base_dir('.'))
modules_dir := os.join_path(compile_dir, 'modules', mod_path)
vlib_path := os.join_path(vexe_path, 'vlib', mod_path)
vmodules_path := os.join_path(os.home_dir(), '.vmodules', mod_path)
paths := [modules_dir, vlib_path, vmodules_path]
for path in paths {
if os.is_dir_empty(path) { continue }
return path
}
return error('vdoc: Module "${mod}" not found.')
}
fn get_modules_list(path string) []string {
files := os.walk_ext(path, 'v')
mut dirs := []string{}
for file in files {
if 'test' in file || 'js' in file || 'x64' in file || 'bare' in file || 'uiold' in file || 'vweb' in file { continue }
dirname := os.base_dir(file)
if dirname in dirs { continue }
dirs << dirname
}
dirs.sort()
return dirs
}
fn (cfg DocConfig) get_resource(name string, minify bool) string {
path := os.join_path(res_path, name)
mut res := os.read_file(path) or { panic('could not read $path') }
if minify {
res = if name.ends_with('.js') { js_compress(res) } else { res.replace('\n', ' ') }
}
// TODO: Make SVG inline for now
if cfg.inline_assets || path.ends_with('.svg') {
return res
} else {
output_path := os.join_path(cfg.output_path, name)
if !os.exists(output_path) {
println('Generating ${output_path}...')
os.write_file(output_path, res)
}
return name
}
}
fn main() {
args := os.args[2..]
if args.len == 0 || args[0] in ['help', '-h', '--help'] {
os.system('${@VEXE} help doc')
exit(0)
}
mut cfg := DocConfig{
manifest: vmod.Manifest{ repo_url: '' }
}
for i := 0; i < args.len; i++ {
arg := args[i]
current_args := args[i..]
match arg {
'-all' {
cfg.pub_only = false
}
'-f' {
format := cmdline.option(current_args, '-f', '')
allowed_str := allowed_formats.join(', ')
if format !in allowed_formats {
eprintln('vdoc: "$format" is not a valid format. Only $allowed_str are allowed.')
exit(1)
}
cfg.set_output_type_from_str(format)
i++
}
'-inline-assets' {
cfg.inline_assets = true
}
'-l' {
cfg.show_loc = true
}
'-m' {
cfg.is_multi = true
}
'-o' {
opath := cmdline.option(current_args, '-o', '')
cfg.output_path = os.real_path(opath)
i++
}
'-open' {
cfg.open_docs = true
}
'-p' {
s_port := cmdline.option(current_args, '-o', '')
s_port_int := s_port.int()
if s_port.len == 0 {
eprintln('vdoc: No port number specified on "-p".')
exit(1)
}
if s_port != s_port_int.str() {
eprintln('vdoc: Invalid port number.')
exit(1)
}
cfg.server_port = s_port_int
}
'-s' {
cfg.inline_assets = true
cfg.serve_http = true
cfg.output_type = .html
}
'-r' {
cfg.include_readme = true
}
'-v' {
cfg.is_verbose = true
}
else {
cfg.input_path = arg
break
}
}
}
if cfg.input_path.len == 0 {
eprintln('vdoc: No input path found.')
exit(1)
}
is_path := cfg.input_path.ends_with('.v') || cfg.input_path.split(os.path_separator).len > 1 || cfg.input_path == '.'
if cfg.input_path == 'vlib' {
cfg.is_multi = true
cfg.input_path = os.join_path(vexe_path, 'vlib')
} else if !is_path {
cfg.vprintln('Input "$cfg.input_path" is not a valid path. Looking for modules named "$cfg.input_path"...')
mod_path := lookup_module(cfg.input_path) or {
eprintln(err)
exit(1)
}
cfg.input_path = mod_path
}
cfg.generate_docs_from_file()
}