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+discard """
+  matrix: "--mm:refc; --mm:orc"
+  output: '''
+
+[Suite] Integration with Nim
+'''
+"""
+
+# tests for dochelpers.nim module
+
+import ../../lib/packages/docutils/[rstast, rst, dochelpers]
+import unittest
+import std/assertions
+
+proc testMsgHandler(filename: string, line, col: int, msgkind: MsgKind,
+                    arg: string) =
+  doAssert msgkind == mwBrokenLink
+
+proc fromRst(text: string): LangSymbol =
+  let r = rstParse(text, "-input-", LineRstInit, ColRstInit,
+                   {roNimFile},
+                   msgHandler=testMsgHandler)
+  assert r.node.kind == rnRstRef
+  result = toLangSymbol(r.node)
+
+proc fromMd(text: string): LangSymbol =
+  let r = rstParse(text, "-input-", LineRstInit, ColRstInit,
+                   {roPreferMarkdown, roSupportMarkdown, roNimFile},
+                   msgHandler=testMsgHandler)
+  assert r.node.kind == rnPandocRef
+  assert r.node.len == 2
+  # this son is the target:
+  assert r.node.sons[1].kind == rnInner
+  result = toLangSymbol(r.node.sons[1])
+
+suite "Integration with Nim":
+  test "simple symbol parsing (shortest form)":
+    let expected = LangSymbol(symKind: "", name: "g")
+    check "g_".fromRst == expected
+    check "[g]".fromMd == expected
+    # test also alternative syntax variants of Pandoc Markdown:
+    check "[g][]".fromMd == expected
+    check "[this symbol][g]".fromMd == expected
+
+  test "simple symbol parsing (group of words)":
+    #let input1 = "`Y`_".rstParseTest
+    let expected1 = LangSymbol(symKind: "", name: "Y")
+    check "`Y`_".fromRst == expected1
+    check "[Y]".fromMd == expected1
+
+    # this means not a statement 'type', it's a backticked identifier `type`:
+    let expected2 = LangSymbol(symKind: "", name: "type")
+    check "`type`_".fromRst == expected2
+    check "[type]".fromMd == expected2
+
+    let expected3 = LangSymbol(symKind: "", name: "[]")
+    check "`[]`_".fromRst == expected3
+    # Markdown syntax for this case is NOT [[]]
+    check "[`[]`]".fromMd == expected3
+
+    let expected4 = LangSymbol(symKind: "", name: "Xyz")
+    check "`X Y Z`_".fromRst == expected4
+    check "[X Y Z]".fromMd == expected4
+
+  test "simple proc parsing":
+    let expected = LangSymbol(symKind: "proc", name: "f")
+    check "`proc f`_".fromRst == expected
+    check "[proc f]".fromMd == expected
+
+  test "another backticked name":
+    let expected = LangSymbol(symKind: "template", name: "type")
+    check """`template \`type\``_""".fromRst == expected
+    # no backslash in Markdown:
+    check """[template `type`]""".fromMd == expected
+
+  test "simple proc parsing with parameters":
+    let expected = LangSymbol(symKind: "proc", name: "f",
+                              parametersProvided: true)
+    check "`proc f*()`_".fromRst == expected
+    check "`proc f()`_".fromRst == expected
+    check "[proc f*()]".fromMd == expected
+    check "[proc f()]".fromMd == expected
+
+  test "symbol parsing with 1 parameter":
+    let expected = LangSymbol(symKind: "", name: "f",
+                              parameters: @[("G[int]", "")],
+                              parametersProvided: true)
+    check "`f(G[int])`_".fromRst == expected
+    check "[f(G[int])]".fromMd == expected
+
+  test "more proc parsing":
+    let input1 = "`proc f[T](x:G[T]):M[T]`_".fromRst
+    let input2 = "`proc f[ T ] ( x: G [T] ): M[T]`_".fromRst
+    let input3 = "`proc f*[T](x: G[T]): M[T]`_".fromRst
+    let expected = LangSymbol(symKind: "proc",
+                              name: "f",
+                              generics: "[T]",
+                              parameters: @[("x", "G[T]")],
+                              parametersProvided: true,
+                              outType: "M[T]")
+    check(input1 == expected)
+    check(input2 == expected)
+    check(input3 == expected)
+
+  test "advanced proc parsing with Nim identifier normalization":
+    let inputRst = """`proc binarySearch*[T, K](a: openarray[T]; key: K;
+                       cmp: proc (x: T; y: K): int)`_"""
+    let inputMd = """[proc binarySearch*[T, K](a: openarray[T]; key: K;
+                       cmp: proc (x: T; y: K): int)]"""
+    let expected = LangSymbol(symKind: "proc",
+                              name: "binarysearch",
+                              generics: "[T,K]",
+                              parameters: @[
+                                ("a", "openarray[T]"),
+                                ("key", "K"),
+                                ("cmp", "proc(x:T;y:K):int")],
+                              parametersProvided: true,
+                              outType: "")
+    check(inputRst.fromRst == expected)
+    check(inputMd.fromMd == expected)
+
+  test "the same without proc":
+    let input = """`binarySearch*[T, K](a: openarray[T]; key: K;
+                    cmp: proc (x: T; y: K): int {.closure.})`_"""
+    let expected = LangSymbol(symKind: "",
+                              name: "binarysearch",
+                              generics: "[T,K]",
+                              parameters: @[
+                                ("a", "openarray[T]"),
+                                ("key", "K"),
+                                ("cmp", "proc(x:T;y:K):int")],
+                              parametersProvided: true,
+                              outType: "")
+    check(input.fromRst == expected)
+    let inputMd = """[binarySearch*[T, K](a: openarray[T]; key: K;
+                      cmp: proc (x: T; y: K): int {.closure.})]"""
+    check(inputMd.fromMd == expected)
+
+  test "operator $ with and without backticks":
+    let input1 = """`func \`$\`*[T](a: \`open Array\`[T]): string`_"""
+    let input1md = "[func `$`*[T](a: `open Array`[T]): string]"
+    let input2 = """`func $*[T](a: \`open Array\`[T]): string`_"""
+    let input2md = "[func $*[T](a: `open Array`[T]): string]"
+    let expected = LangSymbol(symKind: "func",
+                              name: "$",
+                              generics: "[T]",
+                              parameters: @[("a", "openarray[T]")],
+                              parametersProvided: true,
+                              outType: "string")
+    check input1.fromRst == expected
+    check input2.fromRst == expected
+    check input1md.fromMd == expected
+    check input2md.fromMd == expected
+
+  test "operator [] with and without backticks":
+    let input1 = """`func \`[]\`[T](a: \`open Array\`[T], idx: int): T`_"""
+    let input1md = "[func `[]`[T](a: `open Array`[T], idx: int): T]"
+    let input2 = """`func [][T](a: \`open Array\`[T], idx: int): T`_"""
+    let input2md = "[func [][T](a: `open Array`[T], idx: int): T]"
+    let expected = LangSymbol(symKind: "func",
+                              name: "[]",
+                              generics: "[T]",
+                              parameters: @[("a", "openarray[T]"),
+                                            ("idx", "int")],
+                              parametersProvided: true,
+                              outType: "T")
+    check input1.fromRst == expected
+    check input2.fromRst == expected
+    check input1md.fromMd == expected
+    check input2md.fromMd == expected
+
+  test "postfix symbol specifier #1":
+    let input = "`walkDir iterator`_"
+    let inputMd = "[walkDir iterator]"
+    let expected = LangSymbol(symKind: "iterator",
+                              name: "walkdir")
+    check input.fromRst == expected
+    check inputMd.fromMd == expected
+
+  test "postfix symbol specifier #2":
+    let input1 = """`\`[]\`[T](a: \`open Array\`[T], idx: int): T func`_"""
+    let input1md = "[`[]`[T](a: `open Array`[T], idx: int): T func]"
+    let input2 = """`[][T](a: \`open Array\`[T], idx: int): T func`_"""
+    # note again that ` is needed between 1st and second [
+    let input2md = "[`[]`[T](a: `open Array`[T], idx: int): T func]"
+    let expected = LangSymbol(symKind: "func",
+                              name: "[]",
+                              generics: "[T]",
+                              parameters: @[("a", "openarray[T]"),
+                                            ("idx", "int")],
+                              parametersProvided: true,
+                              outType: "T")
+    check input1.fromRst == expected
+    check input2.fromRst == expected
+    check input1md.fromMd == expected
+    check input2md.fromMd == expected
+
+  test "type of type":
+    let inputRst = "`CopyFlag enum`_"
+    let inputMd = "[CopyFlag enum]"
+    let expected = LangSymbol(symKind: "type",
+                              symTypeKind: "enum",
+                              name: "Copyflag")
+    check inputRst.fromRst == expected
+    check inputMd.fromMd == expected
+
+  test "prefixed module":
+    let inputRst = "`module std / paths`_"
+    let inputMd = "[module std / paths]"
+    let expected = LangSymbol(symKind: "module",
+                              name: "std/paths")
+    check inputRst.fromRst == expected
+    check inputMd.fromMd == expected
+
+  test "postfixed module":
+    let inputRst = "`std / paths module`_"
+    let inputMd = "[std / paths module]"
+    let expected = LangSymbol(symKind: "module",
+                              name: "std/paths")
+    check inputRst.fromRst == expected
+    check inputMd.fromMd == expected