[docutils:patches] #208 On parse error, print text block when src=None

- **status**: open --> pending-remind



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**[patches:#208] On parse error, print text block when src=None**

**Status:** pending-remind
**Group:** None
**Created:** Wed Jan 17, 2024 07:29 PM UTC by Colin Marquardt
**Last Updated:** Mon Feb 05, 2024 11:25 AM UTC
**Owner:** nobody


I am using https://github.com/tox-dev/sphinx-argparse-cli to document my Python app's command line options.
When I have a formatting error in the help text of such a command line option, I am getting an error like the following:

None:5: ERROR: Unexpected indentation

 With the patch below, I have a much better chance to find the offending piece of code by printing some context, like so:

None:5: ERROR: Unexpected indentation near text:
Foo
Bar
 
~~~

--- docutils/parsers/rst/states_orig.py     2024-01-04 14:46:37.402565000 +0100
+++ docutils/parsers/rst/states.py          2024-01-17 13:48:00.991420000 +0100
@@ -2793,8 +2793,16 @@
             block = self.state_machine.get_text_block(flush_left=True)
         except statemachine.UnexpectedIndentationError as err:
             block, src, srcline = err.args
-            msg = self.reporter.error('Unexpected indentation.',
-                                      source=src, line=srcline)
+            if src is None:
+                msg = self.reporter.error(
+                    'Unexpected indentation near text:\n' +
+                    ' '.join(list(context)) +
+                    '\n' +
+                    ' '.join(list(block)),
+                    source=src, line=srcline)
+            else:
+                msg = self.reporter.error('Unexpected indentation',
+                                          source=src, line=srcline)
         lines = context + list(block)
         paragraph, literalnext = self.paragraph(lines, startline)
         self.parent += paragraph
~~~



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