Files
Nim/compiler/docgen.nim
Constantine Molchanov 4cf3a95554 Feature: nim book command to produce documentation from Nim-flavored Markdown (#26139)
This PR adds a new Nim compiler command and introduces some improvements
to the docgen suite in general.

1. Adds `nim book`, the new command that takes a directory with
Markdown/ReST files and generates a navigatable, searchable, Nim-first
documentation site.
2. Refactors the default nimdoc.cfg, specifically the part marked with
"needs to be refactored." Code duplication was removed, new overridable
variables were added, quirky logic with the "Group by" switch display
was fixed.

Here's a live demo of a `nim book` produced book:
https://moigagoo.github.io/nim-chronos/

The original mdBook-powered version:
https://status-im.github.io/nim-chronos/

Related to this PR but valuable on their own:
1. `.. include::` directive has received several improvements:
- You can now include code from line to line, merged:
https://github.com/nim-lang/Nim/pull/26130
- You can now include code with syntax highlighting, merged:
https://github.com/nim-lang/Nim/pull/26146
2. `.. admonition::` directive (and its derivatives like `warning`,
`error`, etc.) got new useful functions:
- You can now set a title to your admonitions, open:
https://github.com/nim-lang/Nim/pull/26159
- You can make admonitions collapsible (useful when you need to include
a large chunk if code), open: https://github.com/nim-lang/Nim/pull/26159
2026-09-03 13:45:58 +02:00

2119 lines
83 KiB
Nim

#
#
# The Nim Compiler
# (c) Copyright 2012 Andreas Rumpf
#
# See the file "copying.txt", included in this
# distribution, for details about the copyright.
#
## This is the Nim documentation generator. Cross-references are generated
## by knowing how the anchors are going to be named.
##
## .. importdoc:: ../docgen.md
##
## For corresponding users' documentation see [Nim DocGen Tools Guide].
import
ast, options, msgs, idents,
wordrecg, syntaxes, renderer, lexer,
packages/docutils/[rst, rstidx, rstgen, dochelpers],
trees, types,
typesrenderer, lineinfos,
pathutils, nimpaths, renderverbatim, packages
import packages/docutils/rstast except FileIndex, TLineInfo
import std/[os, strutils, strtabs, algorithm, json, osproc, tables, intsets, xmltree, sequtils]
from std/uri import encodeUrl, parseUri, isAbsolute
from nodejs import findNodeJs
when defined(nimPreviewSlimSystem):
import std/[assertions, syncio]
const
exportSection = skField
docCmdSkip = "skip"
DocColOffset = "## ".len # assuming that a space was added after ##
type
ItemFragment = object ## A fragment from each item will be eventually
## constructed by converting `rst` fields to strings.
case isRst: bool
of true:
rst: PRstNode
of false: ## contains ready markup e.g. from runnableExamples
str: string
ItemPre = seq[ItemFragment] ## A pre-processed item.
Item = object ## Any item in documentation, e.g. symbol
## entry. Configuration variable ``doc.item``
## is used for its HTML rendering.
descRst: ItemPre ## Description of the item (may contain
## runnableExamples).
substitutions: seq[string] ## Variable names in `doc.item`...
sortName: string ## The string used for sorting in output
info: rstast.TLineInfo ## place where symbol was defined (for messages)
anchor: string ## e.g. HTML anchor
name: string ## short name of the symbol, not unique
## (includes backticks ` if present)
detailedName: string ## longer name like `proc search(x: int): int`
ModSection = object ## Section like Procs, Types, etc.
secItems: Table[string, seq[Item]]
## Map basic name -> pre-processed items.
finalMarkup: string ## The items, after RST pass 2 and rendering.
ModSections = array[TSymKind, ModSection]
TocItem = object ## HTML TOC item
content: string
sortName: string
TocSectionsFinal = array[TSymKind, string]
ExampleGroup = ref object
## a group of runnableExamples with same rdoccmd
rdoccmd: string ## from 1st arg in `runnableExamples(rdoccmd): body`
docCmd: string ## from user config, e.g. --doccmd:-d:foo
code: string ## contains imports; each import contains `body`
index: int ## group index
JsonItem = object # pre-processed item: `rst` should be finalized
json: JsonNode
rst: PRstNode
rstField: string
NavItemKind = enum
niLink
niLabel
niHeading
NavItem = object
## Navigation entry for the sidebar navigation.
title: string
case kind: NavItemKind
of niLink:
dest: string
else:
discard
sons: seq[NavItem]
TDocumentor = object of rstgen.RstGenerator
modDescPre: ItemPre # module description, not finalized
modDescFinal: string # module description, after RST pass 2 and rendering
module: PSym
modDeprecationMsg: string
section: ModSections # entries of ``.nim`` file (for `proc`s, etc)
tocSimple: array[TSymKind, seq[TocItem]]
# TOC entries for non-overloadable symbols (e.g. types, constants)...
tocTable: array[TSymKind, Table[string, seq[TocItem]]]
# ...otherwise (e.g. procs)
toc2: TocSectionsFinal # TOC `content`, which is probably wrapped
# in `doc.section.toc2`
toc: TocSectionsFinal # final TOC (wrapped in `doc.section.toc`)
indexValFilename: string
analytics: string # Google Analytics javascript, "" if doesn't exist
seenSymbols: StringTableRef # avoids duplicate symbol generation for HTML.
jEntriesPre: seq[JsonItem] # pre-processed RST + JSON content
jEntriesFinal: JsonNode # final JSON after RST pass 2 and rendering
types: TStrTable
sharedState: PRstSharedState
standaloneDoc: bool # is markup (.rst/.md) document?
conf*: ConfigRef
cache*: IdentCache
exampleCounter: int
emitted: IntSet # we need to track which symbols have been emitted
# already. See bug #3655
thisDir*: AbsoluteDir
exampleGroups: OrderedTable[string, ExampleGroup]
wroteSupportFiles*: bool
nimToRstFid: Table[lineinfos.FileIndex, rstast.FileIndex]
## map Nim FileIndex -> RST one, it's needed because we keep them separate
PDoc* = ref TDocumentor ## Alias to type less.
proc add(dest: var ItemPre, rst: PRstNode) = dest.add ItemFragment(isRst: true, rst: rst)
proc add(dest: var ItemPre, str: string) = dest.add ItemFragment(isRst: false, str: str)
proc addRstFileIndex(d: PDoc, fileIndex: lineinfos.FileIndex): rstast.FileIndex =
let invalid = rstast.FileIndex(-1)
result = d.nimToRstFid.getOrDefault(fileIndex, invalid)
if result == invalid:
let fname = toFullPath(d.conf, fileIndex)
result = addFilename(d.sharedState, fname)
d.nimToRstFid[fileIndex] = result
proc addRstFileIndex(d: PDoc, info: lineinfos.TLineInfo): rstast.FileIndex =
addRstFileIndex(d, info.fileIndex)
proc cmpDecimalsIgnoreCase(a, b: string): int =
## For sorting with correct handling of cases like 'uint8' and 'uint16'.
## Also handles leading zeros well (however note that leading zeros are
## significant when lengths of numbers mismatch, e.g. 'bar08' > 'bar8' !).
runnableExamples:
doAssert cmpDecimalsIgnoreCase("uint8", "uint16") < 0
doAssert cmpDecimalsIgnoreCase("val00032", "val16suffix") > 0
doAssert cmpDecimalsIgnoreCase("val16suffix", "val16") > 0
doAssert cmpDecimalsIgnoreCase("val_08_32", "val_08_8") > 0
doAssert cmpDecimalsIgnoreCase("val_07_32", "val_08_8") < 0
doAssert cmpDecimalsIgnoreCase("ab8", "ab08") < 0
doAssert cmpDecimalsIgnoreCase("ab8de", "ab08c") < 0 # sanity check
let aLen = a.len
let bLen = b.len
var
iA = 0
iB = 0
while iA < aLen and iB < bLen:
if isDigit(a[iA]) and isDigit(b[iB]):
var
limitA = iA # index after the last (least significant) digit
limitB = iB
while limitA < aLen and isDigit(a[limitA]): inc limitA
while limitB < bLen and isDigit(b[limitB]): inc limitB
var pos = max(limitA-iA, limitB-iB)
while pos > 0:
if limitA-pos < iA: # digit in `a` is 0 effectively
result = ord('0') - ord(b[limitB-pos])
elif limitB-pos < iB: # digit in `b` is 0 effectively
result = ord(a[limitA-pos]) - ord('0')
else:
result = ord(a[limitA-pos]) - ord(b[limitB-pos])
if result != 0: return
dec pos
result = (limitA - iA) - (limitB - iB) # consider 'bar08' > 'bar8'
if result != 0: return
iA = limitA
iB = limitB
else:
result = ord(toLowerAscii(a[iA])) - ord(toLowerAscii(b[iB]))
if result != 0: return
inc iA
inc iB
result = (aLen - iA) - (bLen - iB)
proc prettyString(a: object): string =
# xxx pending std/prettyprint refs https://github.com/nim-lang/RFCs/issues/203#issuecomment-602534906
result = ""
for k, v in fieldPairs(a):
result.add k & ": " & $v & "\n"
proc presentationPath*(conf: ConfigRef, file: AbsoluteFile): RelativeFile =
## returns a relative file that will be appended to outDir
let file2 = $file
template bail() =
result = relativeTo(file, conf.projectPath)
proc nimbleDir(): AbsoluteDir =
getNimbleFile(conf, file2).parentDir.AbsoluteDir
case conf.docRoot:
of docRootDefault:
result = getRelativePathFromConfigPath(conf, file)
let dir = nimbleDir()
if not dir.isEmpty:
let result2 = relativeTo(file, dir)
if not result2.isEmpty and (result.isEmpty or result2.string.len < result.string.len):
result = result2
if result.isEmpty: bail()
of "@pkg":
let dir = nimbleDir()
if dir.isEmpty: bail()
else: result = relativeTo(file, dir)
of "@path":
result = getRelativePathFromConfigPath(conf, file)
if result.isEmpty: bail()
elif conf.docRoot.len > 0:
# we're (currently) requiring `isAbsolute` to avoid confusion when passing
# a relative path (would it be relative with regard to $PWD or to projectfile)
conf.globalAssert conf.docRoot.isAbsolute, arg=conf.docRoot
conf.globalAssert conf.docRoot.dirExists, arg=conf.docRoot
# needed because `canonicalizePath` called on `file`
result = file.relativeTo conf.docRoot.expandFilename.AbsoluteDir
else:
bail()
if isAbsolute(result.string):
result = file.string.splitPath()[1].RelativeFile
result = result.string.replace("..", dotdotMangle).RelativeFile
doAssert not result.isEmpty
doAssert not isAbsolute(result.string)
proc whichType(d: PDoc; n: PNode): PSym =
if n.kind == nkSym:
if d.types.strTableContains(n.sym):
result = n.sym
else:
result = nil
else:
result = nil
for i in 0..<n.safeLen:
let x = whichType(d, n[i])
if x != nil: return x
proc attachToType(d: PDoc; p: PSym): PSym =
result = nil
let params = p.ast[paramsPos]
template check(i) =
result = whichType(d, params[i])
if result != nil: return result
# first check the first parameter, then the return type,
# then the other parameter:
if params.len > 1: check(1)
if params.len > 0: check(0)
for i in 2..<params.len: check(i)
template declareClosures(currentFilename: AbsoluteFile, destFile: string) =
proc compilerMsgHandler(filename: string, line, col: int,
msgKind: rst.MsgKind, arg: string) {.gcsafe.} =
# translate msg kind:
var k: TMsgKind
case msgKind
of meCannotOpenFile: k = errCannotOpenFile
of meExpected: k = errXExpected
of meMissingClosing: k = errRstMissingClosing
of meGridTableNotImplemented: k = errRstGridTableNotImplemented
of meMarkdownIllformedTable: k = errRstMarkdownIllformedTable
of meIllformedTable: k = errRstIllformedTable
of meNewSectionExpected: k = errRstNewSectionExpected
of meGeneralParseError: k = errRstGeneralParseError
of meInvalidDirective: k = errRstInvalidDirectiveX
of meInvalidField: k = errRstInvalidField
of meFootnoteMismatch: k = errRstFootnoteMismatch
of meSandboxedDirective: k = errRstSandboxedDirective
of mwRedefinitionOfLabel: k = warnRstRedefinitionOfLabel
of mwUnknownSubstitution: k = warnRstUnknownSubstitutionX
of mwAmbiguousLink: k = warnRstAmbiguousLink
of mwBrokenLink: k = warnRstBrokenLink
of mwUnsupportedLanguage: k = warnRstLanguageXNotSupported
of mwUnsupportedField: k = warnRstFieldXNotSupported
of mwUnusedImportdoc: k = warnRstUnusedImportdoc
of mwRstStyle: k = warnRstStyle
{.gcsafe.}:
let errorsAsWarnings = (roPreferMarkdown in d.sharedState.options) and
not d.standaloneDoc # not tolerate errors in .rst/.md files
if whichMsgClass(msgKind) == mcError and errorsAsWarnings:
liMessage(conf, newLineInfo(conf, AbsoluteFile filename, line, col),
k, arg, doNothing, instLoc(), ignoreError=true)
# when our Markdown parser fails, we currently can only terminate the
# parsing (and then we will return monospaced text instead of markup):
raiseRecoverableError("")
else:
globalError(conf, newLineInfo(conf, AbsoluteFile filename, line, col), k, arg)
proc docgenFindFile(s: string): string {.gcsafe.} =
result = options.findFile(conf, s).string
if result.len == 0:
result = getCurrentDir() / s
if not fileExists(result): result = ""
proc docgenFindRefFile(targetRelPath: string):
tuple[targetPath: string, linkRelPath: string] {.gcsafe.} =
let fromDir = splitFile(destFile).dir # dir where we reference from
let basedir = os.splitFile(currentFilename.string).dir
let outDirPath: RelativeFile =
presentationPath(conf, AbsoluteFile(basedir / targetRelPath))
# use presentationPath because `..` path can be be mangled to `_._`
result = (string(conf.outDir / outDirPath), "")
if not fileExists(result.targetPath):
# this can happen if targetRelPath goes to parent directory `OUTDIR/..`.
# Trying it, this may cause ambiguities, but allows us to insert
# "packages" into each other, which is actually used in Nim repo itself.
let destPath = fromDir / targetRelPath
if destPath != result.targetPath and fileExists(destPath):
result.targetPath = destPath
result.linkRelPath = relativePath(result.targetPath.splitFile.dir,
fromDir).replace('\\', '/')
proc parseRst(text: string,
line, column: int,
conf: ConfigRef, sharedState: PRstSharedState): PRstNode =
result = rstParsePass1(text, line, column, sharedState)
proc getOutFile2(conf: ConfigRef; filename: RelativeFile,
ext: string, guessTarget: bool): AbsoluteFile =
if optWholeProject in conf.globalOptions or guessTarget:
let d = conf.outDir
createDir(d)
result = d / changeFileExt(filename, ext)
elif not conf.outFile.isEmpty:
result = absOutFile(conf)
else:
result = getOutFile(conf, filename, ext)
proc isLatexCmd(conf: ConfigRef): bool =
conf.cmd in {cmdRst2tex, cmdMd2tex, cmdDoc2tex}
proc newDocumentor*(filename: AbsoluteFile; cache: IdentCache; conf: ConfigRef,
outExt: string = HtmlExt, module: PSym = nil,
standaloneDoc = false, preferMarkdown = true,
hasToc = true): PDoc =
let destFile = getOutFile2(conf, presentationPath(conf, filename), outExt, false).string
new(result)
let d = result # pass `d` to `declareClosures`:
declareClosures(currentFilename = filename, destFile = destFile)
result.module = module
result.conf = conf
result.cache = cache
result.outDir = conf.outDir.string
result.standaloneDoc = standaloneDoc
var options= {roSupportRawDirective, roSupportMarkdown, roSandboxDisabled}
if preferMarkdown:
options.incl roPreferMarkdown
if not standaloneDoc: options.incl roNimFile
# (options can be changed dynamically in `setDoctype` by `{.doctype.}`)
result.hasToc = hasToc
result.sharedState = newRstSharedState(
options, filename.string,
docgenFindFile, docgenFindRefFile, compilerMsgHandler, hasToc)
initRstGenerator(result[], (if conf.isLatexCmd: outLatex else: outHtml),
conf.configVars, filename.string,
docgenFindFile, compilerMsgHandler)
if conf.configVars.hasKey("doc.googleAnalytics") and
conf.configVars.hasKey("doc.plausibleAnalytics"):
raiseAssert "Either use googleAnalytics or plausibleAnalytics"
if conf.configVars.hasKey("doc.googleAnalytics"):
result.analytics = """
<script>
(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
})(window,document,'script','//www.google-analytics.com/analytics.js','ga');
ga('create', '$1', 'auto');
ga('send', 'pageview');
</script>
""" % [conf.configVars.getOrDefault"doc.googleAnalytics"]
elif conf.configVars.hasKey("doc.plausibleAnalytics"):
result.analytics = """
<script defer data-domain="$1" src="https://plausible.io/js/plausible.js"></script>
""" % [conf.configVars.getOrDefault"doc.plausibleAnalytics"]
else:
result.analytics = ""
result.seenSymbols = newStringTable(modeCaseInsensitive)
result.id = 100
result.jEntriesFinal = newJArray()
result.types = initStrTable()
result.onTestSnippet =
proc (gen: var RstGenerator; filename, cmd: string; status: int; content: string) {.gcsafe.} =
if conf.docCmd == docCmdSkip: return
inc(gen.id)
var d = (ptr TDocumentor)(addr gen)
var outp: AbsoluteFile
if filename.len == 0:
let nameOnly = splitFile(d.filename).name
# "snippets" needed, refs bug #17183
outp = getNimcacheDir(conf) / "snippets".RelativeDir / RelativeDir(nameOnly) /
RelativeFile(nameOnly & "_snippet_" & $d.id & ".nim")
elif isAbsolute(filename):
outp = AbsoluteFile(filename)
else:
# Nim's convention: every path is relative to the file it was written in:
let nameOnly = splitFile(d.filename).name
outp = AbsoluteDir(nameOnly) / RelativeFile(filename)
# Make sure the destination directory exists
createDir(outp.splitFile.dir)
# Include the current file if we're parsing a nim file
let importStmt = if d.standaloneDoc: "" else: "import \"$1\"\n" % [d.filename.replace("\\", "/")]
writeFile(outp, importStmt & content)
proc interpSnippetCmd(cmd: string): string =
# backward compatibility hacks; interpolation commands should explicitly use `$`
if cmd.startsWith "nim ": result = "$nim " & cmd[4..^1]
else: result = cmd
# factor with D20210224T221756
result = result.replace("$1", "$options") % [
"nim", os.getAppFilename().quoteShell,
"libpath", quoteShell(d.conf.libpath),
"docCmd", d.conf.docCmd,
"backend", $d.conf.backend,
"options", outp.quoteShell,
# xxx `quoteShell` seems buggy if user passes options = "-d:foo somefile.nim"
]
let cmd = cmd.interpSnippetCmd
rawMessage(conf, hintExecuting, cmd)
let (output, gotten) = execCmdEx(cmd)
if gotten != status:
rawMessage(conf, errGenerated, "snippet failed: cmd: '$1' status: $2 expected: $3 output: $4" % [cmd, $gotten, $status, output])
result.emitted = initIntSet()
result.destFile = destFile
result.thisDir = result.destFile.AbsoluteFile.splitFile.dir
template dispA(conf: ConfigRef; dest: var string, xml, tex: string,
args: openArray[string]) =
if not conf.isLatexCmd: dest.addf(xml, args)
else: dest.addf(tex, args)
proc genComment(d: PDoc, n: PNode): PRstNode =
if n.comment.len > 0:
if optDocRaw in d.conf.globalOptions:
return newRstLeaf(n.comment)
d.sharedState.currFileIdx = addRstFileIndex(d, n.info)
try:
result = parseRst(n.comment,
toLinenumber(n.info),
toColumn(n.info) + DocColOffset,
d.conf, d.sharedState)
except ERecoverableError:
result = newRstNode(rnLiteralBlock, @[newRstLeaf(n.comment)])
else:
result = nil
proc genRecCommentAux(d: PDoc, n: PNode): PRstNode =
if n == nil: return nil
result = genComment(d, n)
if result == nil:
if n.kind in {nkStmtList, nkStmtListExpr, nkTypeDef, nkConstDef, nkTypeClassTy,
nkObjectTy, nkRefTy, nkPtrTy, nkAsgn, nkFastAsgn, nkSinkAsgn, nkHiddenStdConv}:
# notin {nkEmpty..nkNilLit, nkEnumTy, nkTupleTy}:
for i in 0..<n.len:
result = genRecCommentAux(d, n[i])
if result != nil: return
else:
n.comment = ""
proc genRecComment(d: PDoc, n: PNode): PRstNode =
if n == nil: return nil
result = genComment(d, n)
if result == nil:
if n.kind in {nkProcDef, nkFuncDef, nkMethodDef, nkIteratorDef,
nkMacroDef, nkTemplateDef, nkConverterDef}:
result = genRecCommentAux(d, n[bodyPos])
else:
result = genRecCommentAux(d, n)
proc getPlainDocstring(n: PNode): string =
## Gets the plain text docstring of a node non destructively.
##
## You need to call this before genRecComment, whose side effects are removal
## of comments from the tree. The proc will recursively scan and return all
## the concatenated ``##`` comments of the node.
if n == nil: result = ""
elif startsWith(n.comment, "##"):
result = n.comment
else:
result = ""
for i in 0..<n.safeLen:
result = getPlainDocstring(n[i])
if result.len > 0: return
proc externalDep(d: PDoc; module: PSym): string =
if optWholeProject in d.conf.globalOptions or d.conf.docRoot.len > 0:
let full = AbsoluteFile toFullPath(d.conf, FileIndex module.position)
let tmp = getOutFile2(d.conf, presentationPath(d.conf, full), HtmlExt, sfMainModule notin module.flags)
result = relativeTo(tmp, d.thisDir, '/').string
else:
result = extractFilename toFullPath(d.conf, FileIndex module.position)
proc nodeToHighlightedHtml(d: PDoc; n: PNode; result: var string;
renderFlags: TRenderFlags = {};
procLink: string) =
var r: TSrcGen = initTokRender(n, renderFlags)
var literal = ""
var kind = tkEof
var tokenPos = 0
var procTokenPos = 0
template escLit(): untyped = esc(d.target, literal)
while true:
getNextTok(r, kind, literal)
inc tokenPos
case kind
of tkEof:
break
of tkComment:
dispA(d.conf, result, "<span class=\"Comment\">$1</span>", "\\spanComment{$1}",
[escLit])
of tokKeywordLow..tokKeywordHigh:
if kind in {tkProc, tkMethod, tkIterator, tkMacro, tkTemplate, tkFunc, tkConverter}:
procTokenPos = tokenPos
dispA(d.conf, result, "<span class=\"Keyword\">$1</span>", "\\spanKeyword{$1}",
[literal])
of tkOpr:
dispA(d.conf, result, "<span class=\"Operator\">$1</span>", "\\spanOperator{$1}",
[escLit])
of tkStrLit..tkTripleStrLit, tkCustomLit:
dispA(d.conf, result, "<span class=\"StringLit\">$1</span>",
"\\spanStringLit{$1}", [escLit])
of tkCharLit:
dispA(d.conf, result, "<span class=\"CharLit\">$1</span>", "\\spanCharLit{$1}",
[escLit])
of tkIntLit..tkUInt64Lit:
dispA(d.conf, result, "<span class=\"DecNumber\">$1</span>",
"\\spanDecNumber{$1}", [escLit])
of tkFloatLit..tkFloat128Lit:
dispA(d.conf, result, "<span class=\"FloatNumber\">$1</span>",
"\\spanFloatNumber{$1}", [escLit])
of tkSymbol:
let s = getTokSym(r)
# -2 because of the whitespace in between:
if procTokenPos == tokenPos-2 and procLink != "":
dispA(d.conf, result, "<a href=\"#$2\"><span class=\"Identifier\">$1</span></a>",
"\\spanIdentifier{$1}", [escLit, procLink])
elif s != nil and s.kind in {skType, skVar, skLet, skConst} and
sfExported in s.flags and s.owner != nil and
belongsToProjectPackage(d.conf, s.owner) and d.target == outHtml:
let href = (if d.module == s.owner: ""
else: externalDep(d, s.owner).changeFileExt("html")
) & "#" & literal
result.addf "<a href=\"$1\"><span class=\"Identifier\">$2</span></a>",
[href, escLit]
else:
dispA(d.conf, result, "<span class=\"Identifier\">$1</span>",
"\\spanIdentifier{$1}", [escLit])
of tkSpaces, tkInvalid:
result.add(literal)
of tkHideableStart:
template fun(s) = dispA(d.conf, result, s, "\\spanOther{$1}", [escLit])
if renderRunnableExamples in renderFlags: fun "$1"
else:
# 1st span is required for the JS to work properly
fun """
<span>
<span class="Other pragmadots">...</span>
</span>
<span class="pragmawrap">""".replace("\n", "") # Must remove newlines because wrapped in a <pre>
of tkHideableEnd:
template fun(s) = dispA(d.conf, result, s, "\\spanOther{$1}", [escLit])
if renderRunnableExamples in renderFlags: fun "$1"
else: fun "</span>"
of tkCurlyDotLe: dispA(d.conf, result, "$1", "\\spanOther{$1}", [escLit])
of tkCurlyDotRi: dispA(d.conf, result, "$1", "\\spanOther{$1}", [escLit])
of tkParLe, tkParRi, tkBracketLe, tkBracketRi, tkCurlyLe, tkCurlyRi,
tkBracketDotLe, tkBracketDotRi, tkParDotLe,
tkParDotRi, tkComma, tkSemiColon, tkColon, tkEquals, tkDot, tkDotDot,
tkAccent, tkColonColon,
tkGStrLit, tkGTripleStrLit, tkInfixOpr, tkPrefixOpr, tkPostfixOpr,
tkBracketLeColon:
dispA(d.conf, result, "<span class=\"Other\">$1</span>", "\\spanOther{$1}",
[escLit])
proc exampleOutputDir(d: PDoc): AbsoluteDir = d.conf.getNimcacheDir / RelativeDir"runnableExamples"
proc runAllExamples(d: PDoc) =
# This used to be: `let backend = if isDefined(d.conf, "js"): "js"` (etc), however
# using `-d:js` (etc) cannot work properly, e.g. would fail with `importjs`
# since semantics are affected by `config.backend`, not by isDefined(d.conf, "js")
let outputDir = d.exampleOutputDir
for _, group in d.exampleGroups:
if group.docCmd == docCmdSkip: continue
let outp = outputDir / RelativeFile("$1_group$2_examples.nim" % [d.filename.splitFile.name, $group.index])
group.code = "# autogenerated by docgen\n# source: $1\n# rdoccmd: $2\n$3" % [d.filename, group.rdoccmd, group.code]
writeFile(outp, group.code)
# most useful semantics is that `docCmd` comes after `rdoccmd`, so that we can (temporarily) override
# via command line
# D20210224T221756:here
var pathArgs = "--path:$path" % [ "path", quoteShell(d.conf.projectPath) ]
for p in d.conf.searchPaths:
pathArgs = "$args --path:$path" % [ "args", pathArgs, "path", quoteShell(p) ]
let cmd = "$nim $backend -r --lib:$libpath --warning:UnusedImport:off $pathArgs --nimcache:$nimcache $rdoccmd $docCmd $file" % [
"nim", quoteShell(os.getAppFilename()),
"backend", $d.conf.backend,
"pathArgs", pathArgs,
"libpath", quoteShell(d.conf.libpath),
"nimcache", quoteShell(outputDir),
"file", quoteShell(outp),
"rdoccmd", group.rdoccmd,
"docCmd", group.docCmd,
]
if d.conf.backend == backendJs and findNodeJs() == "":
discard "ignore JS runnableExample"
elif os.execShellCmd(cmd) != 0:
d.conf.quitOrRaise "[runnableExamples] failed: generated file: '$1' group: '$2' cmd: $3" % [outp.string, group[].prettyString, cmd]
else:
# keep generated source file `outp` to allow inspection.
rawMessage(d.conf, hintSuccess, ["runnableExamples: " & outp.string])
# removeFile(outp.changeFileExt(ExeExt)) # it's in nimcache, no need to remove
proc quoted(a: string): string =
result = ""
result.addQuoted(a)
proc toInstantiationInfo(conf: ConfigRef, info: TLineInfo): (string, int, int) =
# xxx expose in compiler/lineinfos.nim
(conf.toMsgFilename(info), info.line.int, info.col.int + ColOffset)
proc prepareExample(d: PDoc; n: PNode, topLevel: bool): tuple[rdoccmd: string, code: string] =
## returns `rdoccmd` and source code for this runnableExamples
var rdoccmd = ""
if n.len < 2 or n.len > 3: globalError(d.conf, n.info, "runnableExamples invalid")
if n.len == 3:
let n1 = n[1]
# xxx this should be evaluated during sempass
if n1.kind notin nkStrKinds: globalError(d.conf, n1.info, "string litteral expected")
rdoccmd = n1.strVal
let useRenderModule = false
let loc = d.conf.toFileLineCol(n.info)
let code = extractRunnableExamplesSource(d.conf, n)
if d.conf.errorCounter > 0:
return (rdoccmd, code)
let comment = "autogenerated by docgen\nloc: $1\nrdoccmd: $2" % [loc, rdoccmd]
let outputDir = d.exampleOutputDir
createDir(outputDir)
inc d.exampleCounter
let outp = outputDir / RelativeFile("$#_examples_$#.nim" % [d.filename.extractFilename.changeFileExt"", $d.exampleCounter])
if useRenderModule:
var docComment = newTree(nkCommentStmt)
docComment.comment = comment
var runnableExamples = newTree(nkStmtList,
docComment,
newTree(nkImportStmt, newStrNode(nkStrLit, "std/assertions")),
newTree(nkImportStmt, newStrNode(nkStrLit, d.filename)))
runnableExamples.info = n.info
for a in n.lastSon: runnableExamples.add a
# buggy, refs bug #17292
# still worth fixing as it can affect other code relying on `renderModule`,
# so we keep this code path here for now, which could still be useful in some
# other situations.
renderModule(runnableExamples, outp.string, conf = d.conf)
else:
var code2 = code
if code.len > 0 and "codeReordering" notin code:
let codeIndent = extractRunnableExamplesSource(d.conf, n, indent = 2)
# hacky but simplest solution, until we devise a way to make `{.line.}`
# work without introducing a scope
code2 = """
{.line: $#.}:
$#
""" % [$toInstantiationInfo(d.conf, n.info), codeIndent]
code2 = """
#[
$#
]#
import std/assertions
import $#
$#
""" % [comment, d.filename.quoted, code2]
writeFile(outp.string, code2)
if rdoccmd notin d.exampleGroups:
d.exampleGroups[rdoccmd] = ExampleGroup(rdoccmd: rdoccmd, docCmd: d.conf.docCmd, index: d.exampleGroups.len)
d.exampleGroups[rdoccmd].code.add "import $1\n" % outp.string.quoted
var codeShown: string
if topLevel: # refs https://github.com/nim-lang/RFCs/issues/352
let title = canonicalImport(d.conf, AbsoluteFile d.filename)
codeShown = "import $#\n$#" % [title, code]
else:
codeShown = code
result = (rdoccmd, codeShown)
when false:
proc extractImports(n: PNode; result: PNode) =
if n.kind in {nkImportStmt, nkImportExceptStmt, nkFromStmt}:
result.add copyTree(n)
n.kind = nkEmpty
return
for i in 0..<n.safeLen: extractImports(n[i], result)
let imports = newTree(nkStmtList)
var savedLastSon = copyTree n.lastSon
extractImports(savedLastSon, imports)
for imp in imports: runnableExamples.add imp
runnableExamples.add newTree(nkBlockStmt, newNode(nkEmpty), copyTree savedLastSon)
type RunnableState = enum
rsStart
rsComment
rsRunnable
rsDone
proc getAllRunnableExamplesImpl(d: PDoc; n: PNode, dest: var ItemPre,
state: RunnableState, topLevel: bool):
RunnableState =
##[
Simple state machine to tell whether we render runnableExamples and doc comments.
This is to ensure that we can interleave runnableExamples and doc comments freely;
the logic is easy to change but currently a doc comment following another doc comment
will not render, to avoid rendering in following case:
proc fn* =
runnableExamples: discard
## d1
runnableExamples: discard
## d2
## internal explanation # <- this one should be out; it's part of rest of function body and would likey not make sense in doc comment
discard # some code
]##
case n.kind
of nkCommentStmt:
if state in {rsStart, rsRunnable}:
dest.add genRecComment(d, n)
return rsComment
of nkCallKinds:
if isRunnableExamples(n[0]) and
n.len >= 2 and n.lastSon.kind == nkStmtList:
if state in {rsStart, rsComment, rsRunnable}:
let (rdoccmd, code) = prepareExample(d, n, topLevel)
var msg = "Example:"
if rdoccmd.len > 0: msg.add " cmd: " & rdoccmd
var s: string = ""
dispA(d.conf, s, "\n<p><strong class=\"examples_text\">$1</strong></p>\n",
"\n\n\\textbf{$1}\n", [msg])
dest.add s
inc d.listingCounter
let id = $d.listingCounter
dest.add(d.config.getOrDefault"doc.listing_start" % [id, "langNim", ""])
var dest2 = ""
renderNimCode(dest2, code, d.target)
dest.add dest2
dest.add(d.config.getOrDefault"doc.listing_end" % id)
return rsRunnable
else:
localError(d.conf, n.info, errUser, "runnableExamples must appear before the first non-comment statement")
else: discard
return rsDone
# change this to `rsStart` if you want to keep generating doc comments
# and runnableExamples that occur after some code in routine
proc getRoutineBody(n: PNode): PNode =
##[
nim transforms these quite differently:
proc someType*(): int =
## foo
result = 3
=>
result =
## foo
3;
proc someType*(): int =
## foo
3
=>
## foo
result = 3;
so we normalize the results to get to the statement list containing the
(0 or more) doc comments and runnableExamples.
]##
result = n[bodyPos]
# This won't be transformed: result.id = 10. Namely result[0].kind != nkSym.
if result.kind == nkAsgn and result[0].kind == nkSym and
n.len > bodyPos+1 and n[bodyPos+1].kind == nkSym:
doAssert result.len == 2
result = result[1]
proc getAllRunnableExamples(d: PDoc, n: PNode, dest: var ItemPre) =
var n = n
var state = rsStart
template fn(n2, topLevel) =
state = getAllRunnableExamplesImpl(d, n2, dest, state, topLevel)
dest.add genComment(d, n)
case n.kind
of routineDefs:
n = n.getRoutineBody
case n.kind
of nkCommentStmt, nkCallKinds: fn(n, topLevel = false)
else:
for i in 0..<n.safeLen:
fn(n[i], topLevel = false)
if state == rsDone: discard # check all sons
else: fn(n, topLevel = true)
proc isVisible(d: PDoc; n: PNode): bool =
result = false
if n.kind == nkPostfix:
if n.len == 2 and n[0].kind == nkIdent:
var v = n[0].ident
result = v.id == ord(wStar) or v.id == ord(wMinus)
elif n.kind == nkSym:
# we cannot generate code for forwarded symbols here as we have no
# exception tracking information here. Instead we copy over the comment
# from the proc header.
if optDocInternal in d.conf.globalOptions:
result = {sfFromGeneric, sfForward}*n.sym.flags == {}
else:
result = {sfExported, sfFromGeneric, sfForward}*n.sym.flags == {sfExported}
if result and containsOrIncl(d.emitted, n.sym.id):
result = false
elif n.kind == nkPragmaExpr:
result = isVisible(d, n[0])
proc getName(n: PNode): string =
case n.kind
of nkPostfix: result = getName(n[1])
of nkPragmaExpr: result = getName(n[0])
of nkSym: result = n.sym.renderDefinitionName
of nkIdent: result = n.ident.s
of nkAccQuoted:
result = "`"
for i in 0..<n.len: result.add(getName(n[i]))
result.add('`')
of nkOpenSymChoice, nkClosedSymChoice, nkOpenSym:
result = getName(n[0])
else:
result = ""
proc getNameEsc(d: PDoc, n: PNode): string =
esc(d.target, getName(n))
proc getNameIdent(cache: IdentCache; n: PNode): PIdent =
case n.kind
of nkPostfix: result = getNameIdent(cache, n[1])
of nkPragmaExpr: result = getNameIdent(cache, n[0])
of nkSym: result = n.sym.name
of nkIdent: result = n.ident
of nkAccQuoted:
var r = ""
for i in 0..<n.len: r.add(getNameIdent(cache, n[i]).s)
result = getIdent(cache, r)
of nkOpenSymChoice, nkClosedSymChoice, nkOpenSym:
result = getNameIdent(cache, n[0])
else:
result = nil
proc getRstName(n: PNode): PRstNode =
case n.kind
of nkPostfix: result = getRstName(n[1])
of nkPragmaExpr: result = getRstName(n[0])
of nkSym: result = newRstLeaf(n.sym.renderDefinitionName)
of nkIdent: result = newRstLeaf(n.ident.s)
of nkAccQuoted:
result = getRstName(n[0])
for i in 1..<n.len: result.text.add(getRstName(n[i]).text)
of nkOpenSymChoice, nkClosedSymChoice, nkOpenSym:
result = getRstName(n[0])
else:
result = nil
proc newUniquePlainSymbol(d: PDoc, original: string): string =
## Returns a new unique plain symbol made up from the original.
##
## When a collision is found in the seenSymbols table, new numerical variants
## with underscore + number will be generated.
if not d.seenSymbols.hasKey(original):
result = original
d.seenSymbols[original] = ""
return
# Iterate over possible numeric variants of the original name.
var count = 2
while true:
result = original & "_" & $count
if not d.seenSymbols.hasKey(result):
d.seenSymbols[result] = ""
break
count += 1
proc complexName(k: TSymKind, n: PNode, baseName: string): string =
## Builds a complex unique href name for the node.
##
## Pass as ``baseName`` the plain symbol obtained from the nodeName. The
## format of the returned symbol will be ``baseName(.callable type)?,(param
## type)?(,param type)*``. The callable type part will be added only if the
## node is not a proc, as those are the common ones. The suffix will be a dot
## and a single letter representing the type of the callable. The parameter
## types will be added with a preceding dash. Return types won't be added.
##
## If you modify the output of this proc, please update the anchor generation
## section of ``doc/docgen.rst``.
result = baseName
case k
of skProc, skFunc: discard
of skMacro: result.add(".m")
of skMethod: result.add(".e")
of skIterator: result.add(".i")
of skTemplate: result.add(".t")
of skConverter: result.add(".c")
else: discard
if n.safeLen > paramsPos and n[paramsPos].kind == nkFormalParams:
let params = renderParamTypes(n[paramsPos])
if params.len > 0:
result.add(defaultParamSeparator)
result.add(params)
proc docstringSummary(rstText: string): string =
## Returns just the first line or a brief chunk of text from a rst string.
##
## Most docstrings will contain a one liner summary, so stripping at the
## first newline is usually fine. If after that the content is still too big,
## it is stripped at the first comma, colon or dot, usual English sentence
## separators.
##
## No guarantees are made on the size of the output, but it should be small.
## Also, we hope to not break the rst, but maybe we do. If there is any
## trimming done, an ellipsis unicode char is added.
const maxDocstringChars = 100
assert(rstText.len < 2 or (rstText[0] == '#' and rstText[1] == '#'))
result = rstText.substr(2).strip
var pos = result.find('\L')
if pos > 0:
result.setLen(pos - 1)
result.add("")
if pos < maxDocstringChars:
return
# Try to keep trimming at other natural boundaries.
pos = result.find({'.', ',', ':'})
let last = result.len - 1
if pos > 0 and pos < last:
result.setLen(pos - 1)
result.add("")
proc genDeprecationMsg(d: PDoc, n: PNode): string =
## Given a nkPragma wDeprecated node output a well-formatted section
if n == nil: return
case n.safeLen:
of 0: # Deprecated w/o any message
result = getConfigVar(d.conf, "doc.deprecationmsg") % [
"label" , "Deprecated", "message", ""]
of 2: # Deprecated w/ a message
if n[1].kind in {nkStrLit..nkTripleStrLit}:
result = getConfigVar(d.conf, "doc.deprecationmsg") % [
"label", "Deprecated:", "message", xmltree.escape(n[1].strVal)]
else:
result = ""
else:
raiseAssert "unreachable"
type DocFlags = enum
kDefault
kForceExport
proc genSeeSrc(d: PDoc, path: string, line: int): string =
result = ""
let docItemSeeSrc = getConfigVar(d.conf, "doc.item.seesrc")
if docItemSeeSrc.len > 0:
let path = relativeTo(AbsoluteFile path, AbsoluteDir getCurrentDir(), '/')
when false:
let cwd = canonicalizePath(d.conf, getCurrentDir())
var path = path
if path.startsWith(cwd):
path = path[cwd.len+1..^1].replace('\\', '/')
let gitUrl = getConfigVar(d.conf, "git.url")
if gitUrl.len > 0:
let defaultBranch =
if NimPatch mod 2 == 1: "devel"
else: "version-$1-$2" % [$NimMajor, $NimMinor]
let commit = getConfigVar(d.conf, "git.commit", defaultBranch)
let develBranch = getConfigVar(d.conf, "git.devel", "devel")
dispA(d.conf, result, "$1", "", [docItemSeeSrc % [
"path", path.string, "line", $line, "url", gitUrl,
"commit", commit, "devel", develBranch]])
proc symbolPriority(k: TSymKind): int =
result = case k
of skMacro: -3
of skTemplate: -2
of skIterator: -1
else: 0 # including skProc which have higher priority
# documentation itself has even higher priority 1
proc getTypeKind(n: PNode): string =
case n[2].kind
of nkEnumTy: "enum"
of nkObjectTy: "object"
of nkTupleTy: "tuple"
else: ""
proc toLangSymbol(k: TSymKind, n: PNode, baseName: string): LangSymbol =
## Converts symbol info (names/types/parameters) in `n` into format
## `LangSymbol` convenient for ``rst.nim``/``dochelpers.nim``.
result = LangSymbol(name: baseName.nimIdentNormalize,
symKind: k.toHumanStr
)
if k in routineKinds:
var
paramTypes: seq[string] = @[]
renderParamTypes(paramTypes, n[paramsPos], toNormalize=true)
let paramNames = renderParamNames(n[paramsPos], toNormalize=true)
# In some rare cases (system.typeof) parameter type is not set for default:
doAssert paramTypes.len <= paramNames.len
for i in 0 ..< paramNames.len:
if i < paramTypes.len:
result.parameters.add (paramNames[i], paramTypes[i])
else:
result.parameters.add (paramNames[i], "")
result.parametersProvided = true
result.outType = renderOutType(n[paramsPos], toNormalize=true)
if k in {skProc, skFunc, skType, skIterator}:
# Obtain `result.generics`
# Use `n[miscPos]` since n[genericParamsPos] does not contain constraints
var genNode: PNode = nil
if k == skType:
genNode = n[1] # FIXME: what is index 1?
else:
if n[miscPos].kind != nkEmpty:
genNode = n[miscPos][1] # FIXME: what is index 1?
if genNode != nil:
var literal = ""
var r: TSrcGen = initTokRender(genNode, {renderNoBody, renderNoComments,
renderNoPragmas, renderNoProcDefs, renderExpandUsing, renderNoPostfix})
var kind = tkEof
while true:
getNextTok(r, kind, literal)
if kind == tkEof:
break
if kind != tkSpaces:
result.generics.add(literal.nimIdentNormalize)
if k == skType: result.symTypeKind = getTypeKind(n)
proc genItem(d: PDoc, n, nameNode: PNode, k: TSymKind, docFlags: DocFlags, nonExports: bool = false) =
if (docFlags != kForceExport) and not isVisible(d, nameNode): return
let
name = getName(nameNode)
nameEsc = esc(d.target, name)
var plainDocstring = getPlainDocstring(n) # call here before genRecComment!
var result = ""
var literal, plainName = ""
var kind = tkEof
var comm: ItemPre = default(ItemPre)
if n.kind in routineDefs:
getAllRunnableExamples(d, n, comm)
else:
comm.add genRecComment(d, n)
# Obtain the plain rendered string for hyperlink titles.
var r: TSrcGen = initTokRender(n, {renderNoBody, renderNoComments, renderDocComments,
renderNoPragmas, renderNoProcDefs, renderExpandUsing, renderNoPostfix})
while true:
getNextTok(r, kind, literal)
if kind == tkEof:
break
plainName.add(literal)
var pragmaNode = getDeclPragma(n)
if pragmaNode != nil: pragmaNode = findPragma(pragmaNode, wDeprecated)
inc(d.id)
let
plainNameEsc = esc(d.target, plainName.strip)
typeDescr =
if k == skType and getTypeKind(n) != "": getTypeKind(n)
else: k.toHumanStr
detailedName = typeDescr & " " & (
if k in routineKinds: plainName else: name)
uniqueName = if k in routineKinds: plainNameEsc else: nameEsc
sortName = if k in routineKinds: plainName.strip else: name
cleanPlainSymbol = renderPlainSymbolName(nameNode)
complexSymbol = complexName(k, n, cleanPlainSymbol)
plainSymbolEnc = encodeUrl(cleanPlainSymbol, usePlus = false)
symbolOrId = d.newUniquePlainSymbol(complexSymbol)
symbolOrIdEnc = encodeUrl(symbolOrId, usePlus = false)
deprecationMsg = genDeprecationMsg(d, pragmaNode)
rstLangSymbol = toLangSymbol(k, n, cleanPlainSymbol)
symNameNode =
if nameNode.kind == nkPostfix: nameNode[1]
else: nameNode
# we generate anchors automatically for subsequent use in doc comments
let lineinfo = rstast.TLineInfo(
line: nameNode.info.line, col: nameNode.info.col,
fileIndex: addRstFileIndex(d, nameNode.info))
addAnchorNim(d.sharedState, external = false, refn = symbolOrId,
tooltip = detailedName, langSym = rstLangSymbol,
priority = symbolPriority(k), info = lineinfo,
module = addRstFileIndex(d, FileIndex d.module.position))
var renderFlags = {renderNoBody, renderNoComments, renderDocComments,
renderSyms, renderExpandUsing, renderNoPostfix}
if nonExports:
renderFlags.incl renderNonExportedFields
nodeToHighlightedHtml(d, n, result, renderFlags, symbolOrIdEnc)
let seeSrc = genSeeSrc(d, toFullPath(d.conf, n.info), n.info.line.int)
d.section[k].secItems.mgetOrPut(cleanPlainSymbol, newSeq[Item]()).add Item(
descRst: comm,
sortName: sortName,
info: lineinfo,
anchor: symbolOrId,
detailedName: detailedName,
name: name,
substitutions: @[
"uniqueName", uniqueName,
"header", result, "itemID", $d.id,
"header_plain", plainNameEsc, "itemSym", cleanPlainSymbol,
"itemSymEnc", plainSymbolEnc,
"itemSymOrIDEnc", symbolOrIdEnc, "seeSrc", seeSrc,
"deprecationMsg", deprecationMsg])
let external = d.destFile.AbsoluteFile.relativeTo(d.conf.outDir, '/').changeFileExt(HtmlExt).string
var attype = ""
if k in routineKinds and symNameNode.kind == nkSym:
let att = attachToType(d, nameNode.sym)
if att != nil:
attype = esc(d.target, att.name.s)
elif k == skType and symNameNode.kind == nkSym and
symNameNode.sym.typ.kind in {tyEnum, tyBool}:
let etyp = symNameNode.sym.typ
for e in etyp.n:
if e.sym.kind != skEnumField: continue
let plain = renderPlainSymbolName(e)
let symbolOrId = d.newUniquePlainSymbol(plain)
setIndexTerm(d[], ieNim, htmlFile = external, id = symbolOrId,
term = plain, linkTitle = symNameNode.sym.name.s & '.' & plain,
linkDesc = xmltree.escape(getPlainDocstring(e).docstringSummary),
line = n.info.line.int)
d.tocSimple[k].add TocItem(
sortName: sortName,
content: getConfigVar(d.conf, "doc.item.toc") % [
"name", name, "header_plain", plainNameEsc,
"itemSymOrIDEnc", symbolOrIdEnc])
d.tocTable[k].mgetOrPut(cleanPlainSymbol, newSeq[TocItem]()).add TocItem(
sortName: sortName,
content: getConfigVar(d.conf, "doc.item.tocTable") % [
"name", name, "header_plain", plainNameEsc,
"itemSymOrID", symbolOrId.replace(",", ",<wbr>"),
"itemSymOrIDEnc", symbolOrIdEnc])
setIndexTerm(d[], ieNim, htmlFile = external, id = symbolOrId, term = name,
linkTitle = detailedName,
linkDesc = xmltree.escape(plainDocstring.docstringSummary),
line = n.info.line.int)
if k == skType and symNameNode.kind == nkSym:
d.types.strTableAdd symNameNode.sym
proc genJsonItem(d: PDoc, n, nameNode: PNode, k: TSymKind, nonExports = false): JsonItem =
if not isVisible(d, nameNode): return
var
name = getNameEsc(d, nameNode)
comm = genRecComment(d, n)
r: TSrcGen
renderFlags = {renderNoBody, renderNoComments, renderDocComments,
renderExpandUsing, renderNoPostfix}
if nonExports:
renderFlags.incl renderNonExportedFields
r = initTokRender(n, renderFlags)
result = JsonItem(json: %{ "name": %name, "type": %($k), "line": %n.info.line.int,
"col": %n.info.col}
)
if comm != nil:
if optDocRaw in d.conf.globalOptions:
result.json["description"] = %comm.text
else:
result.rst = comm
result.rstField = "description"
if r.buf.len > 0:
result.json["code"] = %r.buf
if k in routineKinds:
result.json["signature"] = newJObject()
if n[paramsPos][0].kind != nkEmpty:
result.json["signature"]["return"] = %($n[paramsPos][0])
if n[paramsPos].len > 1:
result.json["signature"]["arguments"] = newJArray()
for paramIdx in 1 ..< n[paramsPos].len:
for identIdx in 0 ..< n[paramsPos][paramIdx].len - 2:
let
paramName = $n[paramsPos][paramIdx][identIdx]
paramType = $n[paramsPos][paramIdx][^2]
if n[paramsPos][paramIdx][^1].kind != nkEmpty:
let paramDefault = $n[paramsPos][paramIdx][^1]
result.json["signature"]["arguments"].add %{"name": %paramName, "type": %paramType, "default": %paramDefault}
else:
result.json["signature"]["arguments"].add %{"name": %paramName, "type": %paramType}
if n[pragmasPos].kind != nkEmpty:
result.json["signature"]["pragmas"] = newJArray()
for pragma in n[pragmasPos]:
result.json["signature"]["pragmas"].add %($pragma)
if n[genericParamsPos].kind != nkEmpty:
result.json["signature"]["genericParams"] = newJArray()
for genericParam in n[genericParamsPos]:
var param = %{"name": %($genericParam)}
if genericParam.sym.typ.len > 0:
param["types"] = newJArray()
param["types"] = %($genericParam.sym.typ.elementType)
result.json["signature"]["genericParams"].add param
if optGenIndex in d.conf.globalOptions:
genItem(d, n, nameNode, k, kForceExport)
proc setDoctype(d: PDoc, n: PNode) =
## Processes `{.doctype.}` pragma changing Markdown/RST parsing options.
if n == nil:
return
if n.len != 2:
localError(d.conf, n.info, errUser,
"doctype pragma takes exactly 1 argument"
)
return
var dt = ""
case n[1].kind
of nkStrLit:
dt = toLowerAscii(n[1].strVal)
of nkIdent:
dt = toLowerAscii(n[1].ident.s)
else:
localError(d.conf, n.info, errUser,
"unknown argument type $1 provided to doctype" % [$n[1].kind]
)
return
case dt
of "markdown":
d.sharedState.options.incl roSupportMarkdown
d.sharedState.options.incl roPreferMarkdown
of "rstmarkdown":
d.sharedState.options.incl roSupportMarkdown
d.sharedState.options.excl roPreferMarkdown
of "rst":
d.sharedState.options.excl roSupportMarkdown
d.sharedState.options.excl roPreferMarkdown
else:
localError(d.conf, n.info, errUser,
(
"unknown doctype value \"$1\", should be from " &
"\"RST\", \"Markdown\", \"RstMarkdown\""
) % [dt]
)
proc checkForFalse(n: PNode): bool =
result = n.kind == nkIdent and cmpIgnoreStyle(n.ident.s, "false") == 0
proc traceDeps(d: PDoc, it: PNode) =
const k = skModule
if it.kind == nkInfix and it.len == 3 and it[2].kind == nkBracket:
let sep = it[0]
let dir = it[1]
let a = newNodeI(nkInfix, it.info)
a.add sep
a.add dir
a.add sep # dummy entry, replaced in the loop
for x in it[2]:
a[2] = x
traceDeps(d, a)
elif it.kind == nkSym and belongsToProjectPackage(d.conf, it.sym):
let external = externalDep(d, it.sym)
if d.section[k].finalMarkup != "": d.section[k].finalMarkup.add(", ")
dispA(d.conf, d.section[k].finalMarkup,
"<a class=\"reference external\" href=\"$2\">$1</a>",
"$1", [esc(d.target, external.prettyLink),
changeFileExt(external, "html")])
proc exportSym(d: PDoc; s: PSym) =
const k = exportSection
if s.kind == skModule and belongsToProjectPackage(d.conf, s):
let external = externalDep(d, s)
if d.section[k].finalMarkup != "": d.section[k].finalMarkup.add(", ")
dispA(d.conf, d.section[k].finalMarkup,
"<a class=\"reference external\" href=\"$2\">$1</a>",
"$1", [esc(d.target, external.prettyLink),
changeFileExt(external, "html")])
elif s.kind != skModule and s.owner != nil:
let module = originatingModule(s)
if belongsToProjectPackage(d.conf, module):
let
complexSymbol = complexName(s.kind, s.ast, s.name.s)
symbolOrId = d.newUniquePlainSymbol(complexSymbol)
external = externalDep(d, module)
if d.section[k].finalMarkup != "": d.section[k].finalMarkup.add(", ")
# XXX proper anchor generation here
dispA(d.conf, d.section[k].finalMarkup,
"<a href=\"$2#$3\"><span class=\"Identifier\">$1</span></a>",
"$1", [esc(d.target, s.name.s),
changeFileExt(external, "html"),
symbolOrId])
proc documentNewEffect(cache: IdentCache; n: PNode): PNode =
let s = n[namePos].sym
if tfReturnsNew in s.typ.flags:
result = newIdentNode(getIdent(cache, "new"), n.info)
else:
result = nil
proc documentEffect(cache: IdentCache; n, x: PNode, effectType: TSpecialWord, idx: int): PNode =
let spec = effectSpec(x, effectType)
if isNil(spec):
let s = n[namePos].sym
let actual = s.typ.n[0]
if actual.len != effectListLen: return
let real = actual[idx]
if real == nil: return
let realLen = real.len
# warning: hack ahead:
var effects = newNodeI(nkBracket, n.info, realLen)
for i in 0..<realLen:
var t = typeToString(real[i].typ)
if t.startsWith("ref "): t = substr(t, 4)
effects[i] = newIdentNode(getIdent(cache, t), n.info)
# set the type so that the following analysis doesn't screw up:
effects[i].typ = real[i].typ
result = newTreeI(nkExprColonExpr, n.info,
newIdentNode(getIdent(cache, $effectType), n.info), effects)
else:
result = nil
proc documentWriteEffect(cache: IdentCache; n: PNode; flag: TSymFlag; pragmaName: string): PNode =
let s = n[namePos].sym
let params = s.typ.n
var effects = newNodeI(nkBracket, n.info)
for i in 1..<params.len:
if params[i].kind == nkSym and flag in params[i].sym.flags:
effects.add params[i]
if effects.len > 0:
result = newTreeI(nkExprColonExpr, n.info,
newIdentNode(getIdent(cache, pragmaName), n.info), effects)
else:
result = nil
proc documentRaises*(cache: IdentCache; n: PNode) =
if n[namePos].kind != nkSym: return
let pragmas = n[pragmasPos]
let p1 = documentEffect(cache, n, pragmas, wRaises, exceptionEffects)
let p2 = documentEffect(cache, n, pragmas, wTags, tagEffects)
let p3 = documentWriteEffect(cache, n, sfWrittenTo, "writes")
let p4 = documentNewEffect(cache, n)
let p5 = documentWriteEffect(cache, n, sfEscapes, "escapes")
let p6 = documentEffect(cache, n, pragmas, wForbids, forbiddenEffects)
if p1 != nil or p2 != nil or p3 != nil or p4 != nil or p5 != nil or p6 != nil:
if pragmas.kind == nkEmpty:
n[pragmasPos] = newNodeI(nkPragma, n.info)
if p1 != nil: n[pragmasPos].add p1
if p2 != nil: n[pragmasPos].add p2
if p3 != nil: n[pragmasPos].add p3
if p4 != nil: n[pragmasPos].add p4
if p5 != nil: n[pragmasPos].add p5
if p6 != nil: n[pragmasPos].add p6
proc generateDoc*(d: PDoc, n, orig: PNode, config: ConfigRef, docFlags: DocFlags = kDefault) =
## Goes through nim nodes recursively and collects doc comments.
## Main function for `doc`:option: command,
## which is implemented in ``docgen2.nim``.
template genItemAux(skind) =
genItem(d, n, n[namePos], skind, docFlags)
let showNonExports = optShowNonExportedFields in config.globalOptions
case n.kind
of nkPragma:
let pragmaNode = findPragma(n, wDeprecated)
d.modDeprecationMsg.add(genDeprecationMsg(d, pragmaNode))
let doctypeNode = findPragma(n, wDoctype)
setDoctype(d, doctypeNode)
of nkCommentStmt: d.modDescPre.add(genComment(d, n))
of nkProcDef, nkFuncDef:
when useEffectSystem: documentRaises(d.cache, n)
genItemAux(skProc)
of nkMethodDef:
when useEffectSystem: documentRaises(d.cache, n)
genItemAux(skMethod)
of nkIteratorDef:
when useEffectSystem: documentRaises(d.cache, n)
genItemAux(skIterator)
of nkMacroDef: genItemAux(skMacro)
of nkTemplateDef: genItemAux(skTemplate)
of nkConverterDef:
when useEffectSystem: documentRaises(d.cache, n)
genItemAux(skConverter)
of nkTypeSection, nkVarSection, nkLetSection, nkConstSection:
for i in 0..<n.len:
if n[i].kind != nkCommentStmt:
# order is always 'type var let const':
genItem(d, n[i], n[i][0],
succ(skType, ord(n.kind)-ord(nkTypeSection)), docFlags, showNonExports)
of nkStmtList:
for i in 0..<n.len: generateDoc(d, n[i], orig, config)
of nkWhenStmt:
# generate documentation for the first branch only:
if not checkForFalse(n[0][0]):
generateDoc(d, lastSon(n[0]), orig, config)
of nkImportStmt:
for it in n: traceDeps(d, it)
of nkExportStmt:
for it in n:
if it.kind == nkSym:
if d.module != nil and d.module == it.sym.owner: # in current module
# bug #23051; don't generate documentation for exported symbols again
if sfExported notin it.sym.flags:
generateDoc(d, it.sym.ast, orig, config, kForceExport)
# else it's to be handled in `of XxxSection` branch
elif it.sym.ast != nil:
# only export symbols in imported modules, not in current module
exportSym(d, it.sym)
of nkExportExceptStmt: discard "transformed into nkExportStmt by semExportExcept"
of nkFromStmt, nkImportExceptStmt: traceDeps(d, n[0])
of nkCallKinds:
var comm = default(ItemPre)
getAllRunnableExamples(d, n, comm)
if comm.len != 0: d.modDescPre.add(comm)
else: discard
proc overloadGroupName(s: string, k: TSymKind): string =
## Turns a name like `f` into anchor `f-procs-all`
s & "-" & k.toHumanStr & "s-all"
proc setIndexTitle(d: PDoc, useMetaTitle: bool) =
let titleKind = if d.standaloneDoc: ieMarkupTitle else: ieNimTitle
let external = AbsoluteFile(d.destFile)
.relativeTo(d.conf.outDir, '/')
.changeFileExt(HtmlExt)
.string
var term, linkTitle: string
if useMetaTitle and d.meta[metaTitle].len != 0:
term = d.meta[metaTitleRaw]
linkTitle = d.meta[metaTitleRaw]
else:
let filename = extractFilename(d.filename)
term =
if d.standaloneDoc: filename # keep .rst/.md extension
else: changeFileExt(filename, "") # rm .nim extension
linkTitle =
if d.standaloneDoc: term # keep .rst/.md extension
else: canonicalImport(d.conf, AbsoluteFile d.filename)
if not d.standaloneDoc:
linkTitle = "module " & linkTitle
setIndexTerm(d[], titleKind, htmlFile = external, id = "",
term = term, linkTitle = linkTitle)
proc finishGenerateDoc*(d: var PDoc) =
## Perform 2nd RST pass for resolution of links/footnotes/headings...
# copy file map `filenames` to ``rstgen.nim`` for its warnings
d.filenames = d.sharedState.filenames
# Main title/subtitle are allowed only in the first RST fragment of document
var firstRst = PRstNode(nil)
for fragment in d.modDescPre:
if fragment.isRst:
firstRst = fragment.rst
break
d.hasToc = d.hasToc or d.sharedState.hasToc
# in --index:only mode we do NOT want to load other .idx, only write ours:
let importdoc = optGenIndexOnly notin d.conf.globalOptions and
optNoImportdoc notin d.conf.globalOptions
preparePass2(d.sharedState, firstRst, importdoc)
if optGenIndexOnly in d.conf.globalOptions:
# Top-level doc.comments may contain titles and :idx: statements:
for fragment in d.modDescPre:
if fragment.isRst:
traverseForIndex(d[], fragment.rst)
setIndexTitle(d, useMetaTitle = d.standaloneDoc)
# Symbol-associated doc.comments may contain :idx: statements:
for k in TSymKind:
for _, overloadChoices in d.section[k].secItems:
for item in overloadChoices:
for fragment in item.descRst:
if fragment.isRst:
traverseForIndex(d[], fragment.rst)
# add anchors to overload groups before RST resolution
for k in TSymKind:
if k in routineKinds:
for plainName, overloadChoices in d.section[k].secItems:
if overloadChoices.len > 1:
let refn = overloadGroupName(plainName, k)
let tooltip = "$1 ($2 overloads)" % [
k.toHumanStr & " " & plainName, $overloadChoices.len]
let name = nimIdentBackticksNormalize(plainName)
# save overload group to ``.idx``
let external = d.destFile.AbsoluteFile.relativeTo(d.conf.outDir, '/').
changeFileExt(HtmlExt).string
setIndexTerm(d[], ieNimGroup, htmlFile = external, id = refn,
term = name, linkTitle = k.toHumanStr,
linkDesc = "", line = overloadChoices[0].info.line.int)
if optGenIndexOnly in d.conf.globalOptions: continue
addAnchorNim(d.sharedState, external=false, refn, tooltip,
LangSymbol(symKind: k.toHumanStr,
name: name,
isGroup: true),
priority = symbolPriority(k),
# select index `0` just to have any meaningful warning:
info = overloadChoices[0].info,
module = addRstFileIndex(d, FileIndex d.module.position))
if optGenIndexOnly in d.conf.globalOptions:
return
# Finalize fragments of ``.nim`` or ``.rst`` file
proc renderItemPre(d: PDoc, fragments: ItemPre, result: var string) =
for f in fragments:
case f.isRst:
of true:
var resolved = resolveSubs(d.sharedState, f.rst)
renderRstToOut(d[], resolved, result)
of false: result &= f.str
proc cmp(x, y: Item): int = cmpDecimalsIgnoreCase(x.sortName, y.sortName)
for k in TSymKind:
# add symbols to section for each `k`, while optionally wrapping
# overloadable items with the same basic name by ``doc.item2``
let overloadableNames = toSeq(keys(d.section[k].secItems))
for plainName in overloadableNames.sorted(cmpDecimalsIgnoreCase):
var overloadChoices = d.section[k].secItems[plainName]
overloadChoices.sort(cmp)
var nameContent = ""
for item in overloadChoices:
var itemDesc: string = ""
renderItemPre(d, item.descRst, itemDesc)
nameContent.add(
getConfigVar(d.conf, "doc.item") % (
item.substitutions & @[
"desc", itemDesc,
"name", item.name,
"itemSymOrID", item.anchor]))
if k in routineKinds:
let plainNameEsc1 = esc(d.target, plainName.strip)
let plainNameEsc2 = esc(d.target, plainName.strip, escMode=emUrl)
d.section[k].finalMarkup.add(
getConfigVar(d.conf, "doc.item2") % (
@["header_plain", plainNameEsc1,
"overloadGroupName", overloadGroupName(plainNameEsc2, k),
"content", nameContent]))
else:
d.section[k].finalMarkup.add(nameContent)
d.section[k].secItems.clear
renderItemPre(d, d.modDescPre, d.modDescFinal)
d.modDescPre.setLen 0
# Finalize fragments of ``.json`` file
for i, entry in d.jEntriesPre:
if entry.rst != nil:
let resolved = resolveSubs(d.sharedState, entry.rst)
var str: string = ""
renderRstToOut(d[], resolved, str)
entry.json[entry.rstField] = %str
d.jEntriesPre[i].rst = nil
d.jEntriesFinal.add entry.json # generates docs
setIndexTitle(d, useMetaTitle = d.standaloneDoc)
completePass2(d.sharedState)
proc add(d: PDoc; j: JsonItem) =
if j.json != nil or j.rst != nil: d.jEntriesPre.add j
proc generateJson*(d: PDoc, n: PNode, config: ConfigRef, includeComments: bool = true) =
case n.kind
of nkPragma:
let doctypeNode = findPragma(n, wDoctype)
setDoctype(d, doctypeNode)
of nkCommentStmt:
if includeComments:
d.add JsonItem(rst: genComment(d, n), rstField: "comment",
json: %Table[string, string]())
else:
d.modDescPre.add(genComment(d, n))
of nkProcDef, nkFuncDef:
when useEffectSystem: documentRaises(d.cache, n)
d.add genJsonItem(d, n, n[namePos], skProc)
of nkMethodDef:
when useEffectSystem: documentRaises(d.cache, n)
d.add genJsonItem(d, n, n[namePos], skMethod)
of nkIteratorDef:
when useEffectSystem: documentRaises(d.cache, n)
d.add genJsonItem(d, n, n[namePos], skIterator)
of nkMacroDef:
d.add genJsonItem(d, n, n[namePos], skMacro)
of nkTemplateDef:
d.add genJsonItem(d, n, n[namePos], skTemplate)
of nkConverterDef:
when useEffectSystem: documentRaises(d.cache, n)
d.add genJsonItem(d, n, n[namePos], skConverter)
of nkTypeSection, nkVarSection, nkLetSection, nkConstSection:
for i in 0..<n.len:
if n[i].kind != nkCommentStmt:
# order is always 'type var let const':
d.add genJsonItem(d, n[i], n[i][0],
succ(skType, ord(n.kind)-ord(nkTypeSection)), optShowNonExportedFields in config.globalOptions)
of nkStmtList:
for i in 0..<n.len:
generateJson(d, n[i], config, includeComments)
of nkWhenStmt:
# generate documentation for the first branch only:
if not checkForFalse(n[0][0]):
generateJson(d, lastSon(n[0]), config, includeComments)
else: discard
proc genTagsItem(d: PDoc, n, nameNode: PNode, k: TSymKind): string =
result = getNameEsc(d, nameNode) & "\n"
proc generateTags*(d: PDoc, n: PNode, r: var string) =
case n.kind
of nkCommentStmt:
if startsWith(n.comment, "##"):
let stripped = n.comment.substr(2).strip
r.add stripped
of nkProcDef:
when useEffectSystem: documentRaises(d.cache, n)
r.add genTagsItem(d, n, n[namePos], skProc)
of nkFuncDef:
when useEffectSystem: documentRaises(d.cache, n)
r.add genTagsItem(d, n, n[namePos], skFunc)
of nkMethodDef:
when useEffectSystem: documentRaises(d.cache, n)
r.add genTagsItem(d, n, n[namePos], skMethod)
of nkIteratorDef:
when useEffectSystem: documentRaises(d.cache, n)
r.add genTagsItem(d, n, n[namePos], skIterator)
of nkMacroDef:
r.add genTagsItem(d, n, n[namePos], skMacro)
of nkTemplateDef:
r.add genTagsItem(d, n, n[namePos], skTemplate)
of nkConverterDef:
when useEffectSystem: documentRaises(d.cache, n)
r.add genTagsItem(d, n, n[namePos], skConverter)
of nkTypeSection, nkVarSection, nkLetSection, nkConstSection:
for i in 0..<n.len:
if n[i].kind != nkCommentStmt:
# order is always 'type var let const':
r.add genTagsItem(d, n[i], n[i][0],
succ(skType, ord(n.kind)-ord(nkTypeSection)))
of nkStmtList:
for i in 0..<n.len:
generateTags(d, n[i], r)
of nkWhenStmt:
# generate documentation for the first branch only:
if not checkForFalse(n[0][0]):
generateTags(d, lastSon(n[0]), r)
else: discard
proc genSection(d: PDoc, kind: TSymKind, groupedToc = false) =
const sectionNames: array[skModule..skField, string] = [
"Imports", "Types", "Vars", "Lets", "Consts", "Vars", "Procs", "Funcs",
"Methods", "Iterators", "Converters", "Macros", "Templates", "Exports"
]
if d.section[kind].finalMarkup == "": return
var title = sectionNames[kind]
d.section[kind].finalMarkup = getConfigVar(d.conf, "doc.section") % [
"sectionid", $ord(kind), "sectionTitle", title,
"sectionTitleID", $(ord(kind) + 50), "content", d.section[kind].finalMarkup]
proc cmp(x, y: TocItem): int = cmpDecimalsIgnoreCase(x.sortName, y.sortName)
if groupedToc:
let overloadableNames = toSeq(keys(d.tocTable[kind]))
for plainName in overloadableNames.sorted(cmpDecimalsIgnoreCase):
var overloadChoices = d.tocTable[kind][plainName]
overloadChoices.sort(cmp)
var content: string = ""
for item in overloadChoices:
content.add item.content
d.toc2[kind].add getConfigVar(d.conf, "doc.section.toc2") % [
"sectionid", $ord(kind), "sectionTitle", title,
"sectionTitleID", $(ord(kind) + 50),
"content", content, "plainName", plainName]
else:
for item in d.tocSimple[kind].sorted(cmp):
d.toc2[kind].add item.content
let sectionValues = @[
"sectionID", $ord(kind), "sectionTitleID", $(ord(kind) + 50),
"sectionTitle", title
]
# Check if the toc has any children
if d.toc2[kind] != "":
# Use the dropdown version instead and store the children in the dropdown
d.toc[kind] = getConfigVar(d.conf, "doc.section.toc") % (sectionValues & @[
"content", d.toc2[kind]
])
else:
# Just have the link
d.toc[kind] = getConfigVar(d.conf, "doc.section.toc_item") % sectionValues
proc relLink(outDir: AbsoluteDir, destFile: AbsoluteFile, linkto: RelativeFile): string =
$relativeTo(outDir / linkto, destFile.splitFile().dir, '/')
proc genOutFile(d: PDoc, groupedToc = false): string =
var
code, content: string = ""
title = ""
var j = 0
var toc = ""
renderTocEntries(d[], j, 1, toc)
for i in TSymKind:
var shouldSort = i in routineKinds and groupedToc
genSection(d, i, shouldSort)
toc.add(d.toc[i])
if toc != "" or d.target == outLatex:
# for Latex $doc.toc will automatically generate TOC if `d.hasToc` is set
toc = getConfigVar(d.conf, "doc.toc") % ["content", toc]
for i in TSymKind: code.add(d.section[i].finalMarkup)
# Extract the title. Non API modules generate an entry in the index table.
if d.meta[metaTitle].len != 0:
title = d.meta[metaTitle]
else:
title = canonicalImport(d.conf, AbsoluteFile d.filename)
title = esc(d.target, title)
var subtitle = ""
if d.meta[metaSubtitle] != "":
dispA(d.conf, subtitle, "<h2 class=\"subtitle\">$1</h2>",
"\\\\\\vspace{0.5em}\\large $1", [esc(d.target, d.meta[metaSubtitle])])
let theIndexHref = relLink(d.conf.outDir, d.destFile.AbsoluteFile, theindexFname.RelativeFile)
let indexLink = getConfigVar(d.conf, "doc.body_toc_indexlink") % ["theindexhref", theIndexHref]
let navLinks = getConfigVar(d.conf, "doc.body_toc_navlinks", "")
let globalLinks = getConfigVar(d.conf, "doc.body_toc_globallinks") % [
"body_toc_navlinks", navLinks,
"body_toc_indexlink", indexLink,
"theindexhref", theIndexHref] # added because the `boot` branch uses `$theindexhref` directly
let searchBox = getConfigVar(d.conf, "doc.body_toc_searchbox")
let themeSelect = getConfigVar(d.conf, "doc.body_toc_themeselect")
var groupsection = getConfigVar(d.conf, "doc.body_toc_groupsection")
let bodyname = if d.hasToc and d.standaloneDoc and not d.conf.isLatexCmd:
groupsection.setLen 0
"doc.body_toc"
elif d.hasToc: "doc.body_toc"
else: "doc.body_no_toc"
let seeSrc = genSeeSrc(d, d.filename, 1)
content = getConfigVar(d.conf, bodyname) % [
"title", title, "subtitle", subtitle,
"tableofcontents", toc, "moduledesc", d.modDescFinal, "date", getDateStr(),
"time", getClockStr(), "content", code,
"deprecationMsg", d.modDeprecationMsg,
"body_toc_groupsection", groupsection,
"body_toc_globallinks", globalLinks,
"body_toc_searchbox", searchBox,
"body_toc_themeselect", themeSelect,
"seeSrc", seeSrc]
if optCompileOnly notin d.conf.globalOptions:
# XXX what is this hack doing here? 'optCompileOnly' means raw output!?
code = getConfigVar(d.conf, "doc.file") % [
"nimdoccss", relLink(d.conf.outDir, d.destFile.AbsoluteFile,
nimdocOutCss.RelativeFile),
"dochackjs", relLink(d.conf.outDir, d.destFile.AbsoluteFile,
docHackJsFname.RelativeFile),
"title", title, "subtitle", subtitle, "tableofcontents", toc,
"moduledesc", d.modDescFinal, "date", getDateStr(), "time", getClockStr(),
"content", content, "author", d.meta[metaAuthor],
"version", esc(d.target, d.meta[metaVersion]), "analytics", d.analytics,
"deprecationMsg", d.modDeprecationMsg, "nimVersion", $NimMajor & "." & $NimMinor & "." & $NimPatch]
else:
code = content
result = code
proc indexFile(d: PDoc): AbsoluteFile =
let dir = d.conf.outDir
result = dir / changeFileExt(presentationPath(d.conf,
AbsoluteFile d.filename),
IndexExt)
let (finalDir, _, _) = result.string.splitFile
createDir(finalDir)
proc generateIndex*(d: PDoc) =
if optGenIndex in d.conf.globalOptions:
let dest = indexFile(d)
writeIndexFile(d[], dest.string)
proc updateOutfile(d: PDoc, outfile: AbsoluteFile) =
if d.module == nil or sfMainModule in d.module.flags: # nil for e.g. for commandRst2Html
if d.conf.outFile.isEmpty:
d.conf.outFile = outfile.relativeTo(d.conf.outDir)
if isAbsolute(d.conf.outFile.string):
d.conf.outFile = splitPath(d.conf.outFile.string)[1].RelativeFile
proc writeOutput*(d: PDoc, useWarning = false, groupedToc = false) =
if optGenIndexOnly in d.conf.globalOptions:
d.conf.outFile = indexFile(d).relativeTo(d.conf.outDir) # just for display
return
runAllExamples(d)
var content = genOutFile(d, groupedToc)
if optStdout in d.conf.globalOptions:
write(stdout, content)
else:
template outfile: untyped = d.destFile.AbsoluteFile
#let outfile = getOutFile2(d.conf, shortenDir(d.conf, filename), outExt)
let dir = outfile.splitFile.dir
createDir(dir)
updateOutfile(d, outfile)
try:
writeFile(outfile, content)
except IOError:
rawMessage(d.conf, if useWarning: warnCannotOpenFile else: errCannotOpenFile,
outfile.string)
if not d.wroteSupportFiles: # nimdoc.css + dochack.js
let nimr = $d.conf.getPrefixDir()
case d.target
of outHtml:
copyFile(docCss.interp(nimr = nimr), $d.conf.outDir / nimdocOutCss)
of outLatex:
copyFile(docCls.interp(nimr = nimr), $d.conf.outDir / nimdocOutCls)
if optGenIndex in d.conf.globalOptions:
let docHackJs2 = getDocHacksJs(nimr, nim = getAppFilename())
copyFile(docHackJs2, $d.conf.outDir / docHackJs2.lastPathPart)
d.wroteSupportFiles = true
proc writeOutputJson*(d: PDoc, useWarning = false) =
runAllExamples(d)
var modDesc: string = ""
for desc in d.modDescFinal:
modDesc &= desc
let content = %*{"orig": d.filename,
"nimble": getPackageName(d.conf, d.filename),
"moduleDescription": modDesc,
"entries": d.jEntriesFinal}
if optStdout in d.conf.globalOptions:
writeLine(stdout, $content)
else:
let dir = d.destFile.splitFile.dir
createDir(dir)
var f: File = default(File)
if open(f, d.destFile, fmWrite):
write(f, $content)
close(f)
updateOutfile(d, d.destFile.AbsoluteFile)
else:
localError(d.conf, newLineInfo(d.conf, AbsoluteFile d.filename, -1, -1),
warnUser, "unable to open file \"" & d.destFile &
"\" for writing")
proc handleDocOutputOptions*(conf: ConfigRef) =
if optWholeProject in conf.globalOptions:
# Backward compatibility with previous versions
# xxx this is buggy when user provides `nim doc --project -o:sub/bar.html main`,
# it'd write to `sub/bar.html/main.html`
conf.outDir = AbsoluteDir(conf.outDir / conf.outFile)
proc commandDoc*(cache: IdentCache, conf: ConfigRef) =
## implementation of deprecated ``doc0`` command (without semantic checking)
handleDocOutputOptions conf
var ast = parseFile(conf.projectMainIdx, cache, conf)
if ast == nil: return
var d = newDocumentor(conf.projectFull, cache, conf, hasToc = true)
generateDoc(d, ast, ast, conf)
finishGenerateDoc(d)
writeOutput(d)
generateIndex(d)
proc commandRstAux(cache: IdentCache, conf: ConfigRef;
filename: AbsoluteFile, outExt: string,
preferMarkdown: bool, hasToc=false, addTxtExt=true) =
let filen =
if addTxtExt:
filename
else:
addFileExt(filename, "txt")
var d = newDocumentor(filen, cache, conf, outExt, standaloneDoc = true,
preferMarkdown = preferMarkdown, hasToc = hasToc)
try:
let rst = parseRst(readFile(filen.string),
line=LineRstInit, column=ColRstInit,
conf, d.sharedState)
d.modDescPre = @[ItemFragment(isRst: true, rst: rst)]
finishGenerateDoc(d)
writeOutput(d)
generateIndex(d)
except ERecoverableError:
discard "already reported the error"
proc commandRst2Html*(cache: IdentCache, conf: ConfigRef,
preferMarkdown=false) =
commandRstAux(cache, conf, conf.projectFull, HtmlExt, preferMarkdown)
proc commandRst2TeX*(cache: IdentCache, conf: ConfigRef,
preferMarkdown=false) =
commandRstAux(cache, conf, conf.projectFull, TexExt, preferMarkdown)
proc commandJson*(cache: IdentCache, conf: ConfigRef) =
## implementation of a deprecated jsondoc0 command
var ast = parseFile(conf.projectMainIdx, cache, conf)
if ast == nil: return
var d = newDocumentor(conf.projectFull, cache, conf, hasToc = true)
d.onTestSnippet = proc (d: var RstGenerator; filename, cmd: string;
status: int; content: string) {.gcsafe.} =
localError(conf, newLineInfo(conf, AbsoluteFile d.filename, -1, -1),
warnUser, "the ':test:' attribute is not supported by this backend")
generateJson(d, ast, conf)
finishGenerateDoc(d)
let json = d.jEntriesFinal
let content = pretty(json)
if optStdout in d.conf.globalOptions:
write(stdout, content)
else:
#echo getOutFile(gProjectFull, JsonExt)
let filename = getOutFile(conf, RelativeFile conf.projectName, JsonExt)
conf.outFile = filename.relativeTo(conf.outDir)
let dir = filename.splitFile.dir
createDir(dir)
try:
writeFile(filename, content)
except IOError:
rawMessage(conf, errCannotOpenFile, filename.string)
proc commandTags*(cache: IdentCache, conf: ConfigRef) =
var ast = parseFile(conf.projectMainIdx, cache, conf)
if ast == nil: return
var d = newDocumentor(conf.projectFull, cache, conf, hasToc = true)
d.onTestSnippet = proc (d: var RstGenerator; filename, cmd: string;
status: int; content: string) {.gcsafe.} =
localError(conf, newLineInfo(conf, AbsoluteFile d.filename, -1, -1),
warnUser, "the ':test:' attribute is not supported by this backend")
var
content = ""
generateTags(d, ast, content)
if optStdout in d.conf.globalOptions:
write(stdout, content)
else:
let filename = getOutFile(conf, RelativeFile conf.projectName, TagsExt)
conf.outFile = filename.relativeTo(conf.outDir)
let dir = filename.splitFile.dir
createDir(dir)
try:
writeFile(filename, content)
except IOError:
rawMessage(conf, errCannotOpenFile, filename.string)
proc commandBuildIndex*(conf: ConfigRef, dir: string, outFile = RelativeFile"",
exclCode = false, inclHeaders = false) =
if optGenIndexOnly in conf.globalOptions:
return
var content = mergeIndexes(dir, exclCode, inclHeaders)
var outFile = outFile
if outFile.isEmpty: outFile = theindexFname.RelativeFile.changeFileExt("")
let filename = getOutFile(conf, outFile, HtmlExt)
let code = getConfigVar(conf, "doc.file") % [
"nimdoccss", relLink(conf.outDir, filename, nimdocOutCss.RelativeFile),
"dochackjs", relLink(conf.outDir, filename, docHackJsFname.RelativeFile),
"title", "Index",
"subtitle", "", "tableofcontents", "", "moduledesc", "",
"date", getDateStr(), "time", getClockStr(),
"content", content, "author", "", "version", "", "analytics", "", "nimVersion", $NimMajor & "." & $NimMinor & "." & $NimPatch]
# no analytics because context is not available
try:
writeFile(filename, code)
except IOError:
rawMessage(conf, errCannotOpenFile, filename.string)
proc commandBuildIndexJson*(conf: ConfigRef, dir: string, outFile = RelativeFile"") =
var (modules, symbols, docs) = readIndexDir(dir)
let documents = toSeq(keys(Table[IndexEntry, seq[IndexEntry]](docs)))
let body = %*({"documents": documents, "modules": modules, "symbols": symbols})
var outFile = outFile
if outFile.isEmpty: outFile = theindexFname.RelativeFile.changeFileExt("")
let filename = getOutFile(conf, outFile, JsonExt)
try:
writeFile(filename, $body)
except IOError:
rawMessage(conf, errCannotOpenFile, filename.string)
proc commandBook*(cache: IdentCache, conf: ConfigRef) =
let bookDir = conf.projectFull.string
conf.projectPath = AbsoluteDir(bookDir) # set bookDir to be the documentation root,
# so that we don't end up with our output in `<outDir>/<bookDir>`;
# we want it in `<outDir>`
let summaryFilePath = bookDir / "SUMMARY.md"
if not fileExists(summaryFilePath):
rawMessage(conf, errCannotOpenFile, summaryFilePath)
return
let summaryFile = AbsoluteFile(summaryFilePath)
var d = newDocumentor(summaryFile, cache, conf, HtmlExt,
standaloneDoc = true, preferMarkdown = true, hasToc = true)
let rst = parseRst(readFile(summaryFile.string),
line=LineRstInit, column=ColRstInit, conf, d.sharedState)
var navTree: seq[NavItem] = @[]
proc traverseBulletList(list: PRstNode): seq[NavItem] =
## Recursively go through a bullet list and generate a nav subtree from it.
result = @[]
for node in list.sons:
let inner = node.sons[0]
let innerBody = inner.sons[0]
var item =
case innerBody.kind
of rnHyperlink:
NavItem(title: innerBody.sons[0].text, kind: niLink, dest:innerBody.sons[1].text)
of rnLeaf:
NavItem(title: inner.renderRstToText(), kind: niLabel)
else:
NavItem()
if len(node.sons) > 1:
item.sons = traverseBulletList(node.sons[1])
result.add(item)
proc parseSummary(root: PRstNode): seq[NavItem] =
## Parse the root node from the summary file and generate the nav tree.
result = @[]
let nodes = if root.kind == rnInner: root.sons else: @[root]
for node in nodes:
case node.kind
of rnMarkdownHeadline:
let title = node.renderRstToText()
result.add(NavItem(title: title, kind: niHeading))
of rnBulletList:
result &= traverseBulletList(node)
else:
discard
proc isGlobalUri(path: string): bool =
parseUri(path).isAbsolute()
proc existsSrcFile(path: string): bool =
not path.isGlobalUri and fileExists(bookDir / path)
proc generateNavLinks(navSubTree: seq[NavItem], destFile: AbsoluteFile,
nested=false): tuple[navLinks: string, hasCurrentPage: bool] =
## Generate the navigation links for the sidebar.
## Each page has a different set of those, adjusted for relative location.
let tocClassName =
if nested: "nested-toc-section"
else: "simple-toc-section"
var navLinks = """<ul class="simple $#">""" % [tocClassName]
var containsCurrent = false
for item in navSubTree:
var isCurrent = false
let content =
case item.kind
of niHeading:
"""<strong>$#</strong>""" % [esc(outHtml, item.title)]
of niLabel:
esc(outHtml, item.title)
of niLink:
let href =
if item.dest.existsSrcFile():
relLink(conf.outDir, destFile, RelativeFile(item.dest.changeFileExt(HtmlExt)))
else:
item.dest
isCurrent =
not item.dest.isGlobalUri() and
destFile == getOutFile2(conf, presentationPath(conf, AbsoluteFile(bookDir / item.dest)), HtmlExt, false)
let cls =
if isCurrent: "current"
else: ""
"""<a href="$#" class="$#">$#</a>""" % [href, cls, esc(outHtml, item.title)]
if len(item.sons) == 0:
navLinks &= """<li>$#</li>""" % [content]
else:
let (sonsNavLinks, sonsContainCurrent) = generateNavLinks(item.sons, destFile, nested=true)
let unfold = isCurrent or sonsContainCurrent
let openAttr = if unfold: " open" else: ""
navLinks &= """<li><details$#><summary>$#</summary>$#</details></li>""" %
[openAttr, content, sonsNavLinks]
containsCurrent = containsCurrent or unfold
containsCurrent = containsCurrent or isCurrent
navLinks &= """</ul>"""
result = (navLinks, containsCurrent)
proc generatePage(filename: AbsoluteFile) =
## Generate an HTML page from a Markdown file.
conf.outFile = RelativeFile"" # reset to force path re-generation for each page
let destFile = getOutFile2(conf, presentationPath(conf, filename), HtmlExt, false)
let (navLinks, _) = generateNavLinks(navTree, destFile)
setConfigVar(conf, "doc.body_toc_navlinks", navLinks)
commandRstAux(cache, conf, filename, HtmlExt,
preferMarkdown=true, hasToc=true, addTxtExt=false)
proc generatePages(navSubTree: seq[NavItem]) =
## Generate all pages from the Markdown files listed in the summary file.
for item in navSubTree:
if item.kind == niLink and not item.dest.isGlobalUri():
let pageFilePath = bookDir / item.dest
if fileExists(pageFilePath):
let pageFile = AbsoluteFile(pageFilePath)
generatePage(pageFile)
else:
rawMessage(conf, warnCannotOpenFile, pageFilePath)
generatePages(item.sons)
setConfigVar(conf, "doc.body_toc_groupsection", "") # we don't need "Group by" section in standalone docs
navTree = parseSummary(rst)
generatePages(navTree)