Fixing the MarkdownHeaderTextSplitter dealling with lines just contianing #s #485
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This change prevents errors when the markdown file includes lines that start with # but have no following characters.
WalkthroughThe changes involve a modification to the Changes
Sequence Diagram(s)sequenceDiagram
participant User
participant MarkdownHeaderTextSplitter
User->>MarkdownHeaderTextSplitter: Input text with headers
MarkdownHeaderTextSplitter->>MarkdownHeaderTextSplitter: Check if line is header
alt Line is header
MarkdownHeaderTextSplitter->>User: Return header information
else Line is empty or invalid
MarkdownHeaderTextSplitter->>User: Ignore line
end
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Actionable comments posted: 0
🧹 Outside diff range and nitpick comments (1)
src/Splitters/Abstractions/src/Text/MarkdownHeaderTextSplitter.cs (1)
125-126: Improve clarity of the empty header checkWhile the logic is correct for preventing empty headers, the implementation could be more explicit and better documented.
Consider this improved version:
- if (line.Length <= header.Length + 1) - return false;//Empty lines starting with #s should not be considered as headers. Removing this line would result in exceptions in that conditions + // Skip lines that only contain header symbols (e.g., "##" or "## ") + // A valid header must have at least one character after the space + if (line.Length <= header.Length + 1) { + return false; + }
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Review profile: CHILL
📒 Files selected for processing (1)
src/Splitters/Abstractions/src/Text/MarkdownHeaderTextSplitter.cs(2 hunks)
🔇 Additional comments (1)
src/Splitters/Abstractions/src/Text/MarkdownHeaderTextSplitter.cs (1)
Line range hint 125-136: Verify handling of edge cases
While the fix prevents empty headers, let's ensure it handles all edge cases correctly.
Let's verify the behavior with different header patterns:
This will help ensure we're not breaking any existing content patterns in the codebase while fixing the empty header issue.
✅ Verification successful
Let me analyze the implementation of the header detection logic to ensure it correctly handles these edge cases.
Edge cases are properly handled in the implementation
The current implementation correctly handles all edge cases:
- Empty headers (e.g.,
#,##,###followed by nothing or spaces) are properly rejected by the length check - Headers without spaces (e.g.,
#Header) are correctly rejected by the space character check - Valid headers (e.g.,
# Header,## Title) are properly identified - The test suite confirms the expected behavior for various header patterns
The implementation is robust because it:
- Requires headers to be longer than the marker plus one character
- Enforces a space after the header markers
- Properly trims and validates the header format
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Create a test file with various header patterns
cat << 'EOF' > test_headers.md
# Valid header
#Invalid header
##
##
## Valid header
### Some header
####No space
##### Valid header with symbols !@#
######
EOF
# Search for similar patterns in the codebase to ensure we're not breaking existing content
rg -l '^#+\s*$' || echo "No files with empty headers found"
rg -l '^#+[^\s]' || echo "No files with headers without spaces found"
Length of output: 1074
Script:
#!/bin/bash
# Check the implementation of IsHeader method and related tests
ast-grep --pattern 'IsHeader($$$)'
rg -A 10 "IsHeader.*\(" src/Splitters/Abstractions/test/Tests.MarkdownHeader.cs
Length of output: 241
Script:
#!/bin/bash
# Let's check the test file content and implementation
cat src/Splitters/Abstractions/test/Tests.MarkdownHeader.cs
cat src/Splitters/Abstractions/src/Text/MarkdownHeaderTextSplitter.cs
Length of output: 5552
|
The failed tests do not seem to be related to the small change I made to the code. Should I take any action? |
This change prevents errors when the markdown file includes lines that start with # but have no following characters.
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