fix: keep glossary tooltips out of proper names

The glossary's capitalised terms matched mostly inside product names and paths: Free Unix Spectrum Emulator, Windows Terminal, Documents/Dolphin Emulator, on 35 pages. A capitalised term after a capitalised word or a slash is now left alone. Acronyms keep their tooltip.

scripts/sitestarlight.py

@@ -244,10 +244,21 @@ def _tooltip_line(line: str, pattern: re.Pattern, pending: dict[str, str]) -> st
     return "".join(out)
 
 
+_NAME_BEFORE = re.compile(r"(?:/|\b[A-Z][\w'-]*[ \t]+)$")
+
+
+def _in_proper_name(term: str, before: str) -> bool:
+    """A capitalised term after a capitalised word or a slash is part of a
+    name: Free Unix Spectrum Emulator, Windows Terminal, Documents/Dolphin
+    Emulator. An acronym (BIOS, ZIP) is the term wherever it stands."""
+    first = term.split()[0]
+    return first[:1].isupper() and not first.isupper() and bool(_NAME_BEFORE.search(before))
+
+
 def _tooltip_text(text: str, pattern: re.Pattern, pending: dict[str, str]) -> str:
     def swap(match: re.Match) -> str:
         term = match.group(1)
-        if term not in pending:
+        if term not in pending or _in_proper_name(term, text[:match.start()]):
             return term
         definition = pending.pop(term)
         return f'<abbr class="rb-term" title="{html.escape(definition)}">{term}</abbr>'

tests/test_site_render.py

@@ -484,3 +484,24 @@ class AMemberIsReadInItsArchive(unittest.TestCase):
                                                   lambda _f: True, owner="fbneo"))
         self.assertIn("Collection copy: member `sm1.sm1` of", rows)
         self.assertIn(shipped, rows)
+
+
+class NoTooltipInsideAName(unittest.TestCase):
+    """The glossary's capitalised terms matched almost only product names:
+    Free Unix Spectrum Emulator, Windows Terminal, Documents/Dolphin Emulator."""
+
+    def test_names_are_left_and_terms_are_marked(self):
+        import sitestarlight
+
+        terms = {"Emulator": "An app that acts like a console.",
+                 "Terminal": "A window where you type commands.",
+                 "BIOS": "The console's built-in software."}
+        for line in ("Fuse (Free Unix Spectrum Emulator) reads it.",
+                     "Open Windows Terminal (WSL).",
+                     "Copy it to Documents/Dolphin Emulator/Sys."):
+            with self.subTest(line=line):
+                self.assertNotIn("rb-term", sitestarlight.add_tooltips(line, terms))
+        marked = sitestarlight.add_tooltips(
+            "Emulator settings come first. The PlayStation BIOS goes there.", terms)
+        self.assertIn('title="An app that acts like a console.">Emulator</abbr>', marked)
+        self.assertIn('>BIOS</abbr>', marked)