[gi-docgen/function-match] Restrict the function escape regular expression

[Emmanuele Bassi <ebassi src gnome org>]

commit 7a586a33648a01de4ca05797c1d9bd6dc7c34660
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Mon Sep 27 20:52:01 2021 +0100

    Restrict the function escape regular expression
    
    We only want to match function names followed by `()`, but there are too
    many cases in which we end up messing it up.

 gidocgen/mdext.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/gidocgen/mdext.py b/gidocgen/mdext.py
index 33a71fb..5106871 100644
--- a/gidocgen/mdext.py
+++ b/gidocgen/mdext.py
@@ -17,7 +17,7 @@ ARG_SIGIL_RE = re.compile(r"(^|\W)@([A-Za-z0-9_]+)\b")
 
 CONST_SIGIL_RE = re.compile(r"(^|\W)%([A-Z0-9_]+)\b")
 
-FUNCTION_RE = re.compile(r"\b([a-z][a-z0-9_]*)\(\)")
+FUNCTION_RE = re.compile(r"(^|\s+)([a-z][a-z0-9_]*)\(\)(\s+|$)")
 
 
 class GtkDocPreprocessor(Preprocessor):
@@ -55,7 +55,7 @@ class GtkDocPreprocessor(Preprocessor):
                 new_line = re.sub(ARG_SIGIL_RE, r"\g<1>`\g<2>`", new_line)
 
                 # Function
-                new_line = re.sub(FUNCTION_RE, r"`\g<1>()`", new_line)
+                new_line = re.sub(FUNCTION_RE, r"\g<1>`\g<2>()`\g<3>", new_line)
 
             new_lines.append(new_line)
         return new_lines