# HG changeset patch
# User Paul Boddie <paul@boddie.org.uk>
# Date 1543161435 -3600
# Node ID 032af926246bf75fcd480ec5aab2c77331409259
# Parent  e7d30103073793c78623de7f08c4c4f9c2236723
Prevent some inline formatting markup from matching without closing markup
occuring within the same paragraph.

diff -r e7d301030737 -r 032af926246b moinformat/parsers/common.py
--- a/moinformat/parsers/common.py	Sat Nov 24 18:10:14 2018 +0100
+++ b/moinformat/parsers/common.py	Sun Nov 25 16:57:15 2018 +0100
@@ -26,8 +26,9 @@
 # Pattern management.
 
 ws_excl_nl = r"[ \f\r\t\v]"
-quotes = "['" '"]'              # ['"]
-dotall = r"(.|\n)"
+quotes = "['" '"]'                  # ['"]
+dotall = r"(.|\n)"                  # behave similarly to dot with DOTALL option
+dotparagraph = r"(.|\n(?!\r?\n))"   # match everything within paragraphs
 
 def choice(l):
 
@@ -91,6 +92,7 @@
         value = value.replace(r"\N", ws_excl_nl)
         value = value.replace(r"\Q", quotes)
         value = value.replace(r"\E", dotall)
+        value = value.replace(r"\P", dotparagraph)
         patterns[name] = get_pattern(value)
     return patterns
 
diff -r e7d301030737 -r 032af926246b moinformat/parsers/moin.py
--- a/moinformat/parsers/moin.py	Sat Nov 24 18:10:14 2018 +0100
+++ b/moinformat/parsers/moin.py	Sun Nov 25 16:57:15 2018 +0100
@@ -508,6 +508,9 @@
 
 
     def inline_patterns_for(self, name):
+
+        "Return active patterns for the inline element having the given 'name'."
+
         names = self.inline_pattern_names[:]
         names[names.index(name)] = "%send" % name
         return names
@@ -721,14 +724,34 @@
         # features.
 
         "fontstyle"     : group("style", repeat("'", 2, 6)),                    # ''...
-        "larger"        : r"~\+",                                               # ~+
-        "monospace"     : r"`",                                                 # `
+
+        # Trivial markup balancing is done below using the end features.
+
+        "larger"        : join((r"~\+",                                         # ~+
+                                expect(r"\P*?\+~"))),                           # ... +~
+
+        "monospace"     : join((r"`",                                           # `
+                                expect(r"\P*?`"))),                             # ... `
+
+        "smaller"       : join((r"~-",                                          # ~-
+                                expect(r"\P*?-~"))),                            # ... -~
+
+        "strike"        : join((r"--\(",                                        # --(
+                                expect(r"\P*?\)--"))),                          # ... )--
+
+        "sub"           : join((r",,",                                          # ,,
+                                expect(r"\P*?,,"))),                            # ... ,,
+
+        "super"         : join((r"\^",                                          # ^
+                                expect(r"\P*?\^"))),                            # ... ^
+
+        "underline"     : join((r"__",                                          # __
+                                expect(r"\P*?__"))),                            # ... __
+
+        # Rules are treated as inline but, unlike the above, appear without
+        # contents.
+
         "rule"          : group("rule", "-----*"),                              # ----...
-        "smaller"       : r"~-",                                                # ~-
-        "strike"        : r"--\(",                                              # --(
-        "sub"           : r",,",                                                # ,,
-        "super"         : r"\^",                                                # ^
-        "underline"     : r"__",                                                # __
 
         # Links and transclusions may start inline spans.
 
diff -r e7d301030737 -r 032af926246b tests/test_formatting.tree
--- a/tests/test_formatting.tree	Sat Nov 24 18:10:14 2018 +0100
+++ b/tests/test_formatting.tree	Sun Nov 25 16:57:15 2018 +0100
@@ -96,3 +96,12 @@
     Text
     Verbatim
     Text
+  Break
+  Block
+    Text
+    Superscript
+      Text
+    Text
+  Break
+  Block
+    Text
diff -r e7d301030737 -r 032af926246b tests/test_formatting.txt
--- a/tests/test_formatting.txt	Sat Nov 24 18:10:14 2018 +0100
+++ b/tests/test_formatting.txt	Sun Nov 25 16:57:15 2018 +0100
@@ -17,3 +17,8 @@
 Some --(deleted)-- text.
 
 Some <<<verbatim, __not underlined__ text>>>.
+
+Some ^superscript text
+wrapped^.
+
+Some ^not superscript text.