From 4f239ea0d745a1bced322a77990dd997fb9f1ea7 Mon Sep 17 00:00:00 2001
From: sneakers-the-rat <JLSaunders987@gmail.com>
Date: Sun, 13 Nov 2022 11:37:23 -0800
Subject: [PATCH] wikilink with semantic syntax :)

---
 tests/test_patterns/test_wikilinks.py | 20 ++++++++++--
 wiki_postbot/patterns/wikilink.py     | 46 +++++++++++++++++++++++++--
 2 files changed, 60 insertions(+), 6 deletions(-)

diff --git a/tests/test_patterns/test_wikilinks.py b/tests/test_patterns/test_wikilinks.py
index f4a0859..06fb591 100644
--- a/tests/test_patterns/test_wikilinks.py
+++ b/tests/test_patterns/test_wikilinks.py
@@ -41,6 +41,14 @@ class TestStr:
         "[[^{1,3}Link#With section]]",
         Wikilink("Link", nback=NBack(1,3), section="With section")
     )
+    implicit = (
+        "[[Predicate:singlecol::Object]]",
+        Wikilink(predicate="Predicate:singlecol", object="Object")
+    )
+    explicit = (
+        "[[Link#Section::Predicate:singlecol::Object]]",
+        Wikilink(link="Link", section="Section", predicate="Predicate:singlecol", object="Object")
+    )
 
 
 def pad_garbage(string:str) -> str:
@@ -135,9 +143,15 @@ def test_section(test_string, expected):
     assert len(wl) == 1
     assert wl[0] == expected
 
-
-def test_triplet_full():
-    pass
+@pytest.mark.parametrize(
+    "test_string,expected",
+     [TestStr.implicit, TestStr.explicit])
+def test_triplets(test_string, expected):
+    test_string = pad_garbage(test_string)
+    wl = Wikilink.parse(test_string)
+    # pdb.set_trace()
+    assert len(wl) == 1
+    assert wl[0] == expected
 
 def test_triplet_implicit_single():
     """Test an implicit triplet in a single message"""
diff --git a/wiki_postbot/patterns/wikilink.py b/wiki_postbot/patterns/wikilink.py
index 7ad4ff2..0f2d838 100644
--- a/wiki_postbot/patterns/wikilink.py
+++ b/wiki_postbot/patterns/wikilink.py
@@ -62,13 +62,17 @@ class NBack:
 
         # combine into matches
         nb_wildcard = caret.suppress() + "*"
+        nb_wildcard.set_name("NBack - Wildcard")
         # start or end can be omitted if comma is present
         nb_full = nb_range + pp.Optional(integer("start")) + comma + pp.Optional(integer("end")) + rcurly
+        nb_full.set_name("NBack - Fully Specified")
         # if no comma present, it's just an end
         nb_end = nb_range + integer("end") + rcurly
+        nb_end.set_name("NBack - End Specified")
 
         # combine into full nback parser
         nback = pp.Group(nb_wildcard('wildcard') | nb_full | nb_end | caret("one")).set_results_name("nback")
+        nback.set_name("NBack Prefix")
         return nback
 
     def __eq__(self, other:'NBack'):
@@ -123,7 +127,7 @@ class Wikilink(Pattern):
 
     def __init__(
             self,
-            link: str,
+            link: Optional[str] = None,
             nback: Optional[Union[NBack, tuple, dict]] = None,
             predicate: Optional[str] = None,
             object: Optional[str] = None,
@@ -160,14 +164,50 @@ class Wikilink(Pattern):
         nback = NBack.make_parser()
 
         # main wikilink subject text
-        link = pp.Word(pp.printables+ " ", excludeChars="#[]{}|")
+        #link = pp.Word(pp.printables+ " ", excludeChars="#[]{}|:") + pp.Optional(pp.Literal(':')) + pp.Optional(pp.Word(pp.printables+ " ", excludeChars="#[]{}|:"))
+        # allow single, but not double colons
+        # "Look for a printable character and an optional colon that isn't a double colon,
+        # combine those. Then look for one or more instances of that, and combine that."
+        link = pp.Combine(
+            pp.OneOrMore(
+                pp.Combine(
+                    pp.Word(pp.printables+ " ", excludeChars="#[]{}|:").set_name("Link Body") + \
+                    pp.Optional(
+                        pp.Literal(':')+ ~pp.Literal(':')
+                    ).set_name('Single Colon')
+                )
+            )
+        )
+        link.set_name("Wikilink - Body")
+
 
         # optional page section
         hash = pp.Literal("#").suppress()
         section = hash + link
+        section.set_name("Section")
+
+        # combined they make a fully qualified link#section link
+        link_full = link("link") + pp.Optional(section("section"))
+        link_full.set_name("Wikilink - Full")
+
+        #### SMW
+        # Predicate::Object with implicit subject
+        smw_delimiter = pp.Literal('::').suppress()
+        implicit_semantic = link("predicate") + smw_delimiter + link("object")
+
+        # or
+        # Link::Predicate::Object with explicit subject
+        explicit_semantic = link_full + smw_delimiter + implicit_semantic
+
+        ### Combine link bodies
+        # optionally matching depending on the form
+        link_bodies = explicit_semantic.set_name('Explicit Semantic Link') | implicit_semantic.set_name('Implicit Semantic Link') | link_full
+        # link_bodies = implicit_semantic
 
         # Combine all
-        parser = lbracket + pp.Optional(nback) + link("link") + pp.Optional(section("section")) + rbracket
+        #parser = lbracket + pp.Optional(nback) + link_full + rbracket
+        parser = lbracket + pp.Optional(nback) + link_bodies + rbracket
+        parser.set_name('Wikilink Parser')
         return parser
 
     @classmethod