Merge pull request #5536 from Textualize/fix-escape

fix markup escape

Author: willmcgugan

CHANGELOG.md

@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
+## 2.0.1 - 2024-02-16
+
+### Fixed
+
+- Fixed escape tags in Content markup https://github.com/Textualize/textual/pull/5536
+
 ## 2.0.0 - 2025-02-16
 
 ### Added

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "textual"
-version = "2.0.0"
+version = "2.0.1"
 homepage = "https://github.com/Textualize/textual"
 repository = "https://github.com/Textualize/textual"
 documentation = "https://textual.textualize.io/"

src/textual/markup.py

@@ -48,7 +48,6 @@ class MarkupError(Exception):
     "markup tag",
     open_closing_tag=r"(?<!\\)\[/",
     open_tag=r"(?<!\\)\[",
-    end_tag=r"(?<!\\)\]",
 ).extract_text()
 
 expect_markup_expression = (
@@ -344,7 +343,6 @@ def process_text(template_text: str, /) -> str:
             return template_text
 
     for token in iter_tokens:
-
         token_name = token.name
         if token_name == "text":
             value = process_text(token.value.replace("\\[", "["))
@@ -353,6 +351,7 @@ def process_text(template_text: str, /) -> str:
 
         elif token_name == "open_tag":
             tag_text = []
+
             for token in iter_tokens:
                 if token.name == "end_tag":
                     break

tests/test_content.py

@@ -216,3 +216,10 @@ def test_assemble():
         Span(28, 35, style="blue"),
         Span(41, 66, style="underline"),
     ]
+
+
+def test_escape():
+    """Test that escaping the first square bracket."""
+    content = Content.from_markup("\\[bold]Not really bold")
+    assert content.plain == "[bold]Not really bold"
+    assert content.spans == []