Normalize URL by removing trailing slash (except for root path).

Check if text contains Chinese characters.

Parse all .md files in the parent directory, excluding specified files.

Parse markdown link and extract title, description, and comment based on URL type. Returns: (title, description, comment) tuple

Split text by various separator patterns: ' - ', '–', '—', ' – ', ' — ' Returns: (parts, separator_used) tuple

Convert ISO datetime string to Unix timestamp.

Retrieve all data from the database.

Process other URLs by fetching metadata.

Process a URL and return metadata based on URL type.

Remove duplicate items while preserving order.

Build a mapping from URL to Chinese comment by scanning markdown files once.

Build a mapping from URL to description by scanning markdown files once.

Build a mapping from URL to title by scanning markdown files once.

Delete all failed entries (status = 0) from the database.

Dump data from the database that exists in markdown files and has succeeded.

Dump data in JSON format that can be decoded as a list of Go structs.

Get existing entry for a URL.

Retrieve only failed entries (status = 0) from the database.

Initialize the database with the required table structure.

Insert or update a record in the database.

Process Crates.io URLs.

Process GitHub Gist URLs.

Process Gitee repository URLs.

Process GitHub repository URLs, user/organization URLs, and other GitHub URLs.

Process GitLab repository URLs.

Scan all markdown files and extract Chinese comments matching pattern ` - .* - (.*)`.

Show only failed entries from the database that exist in markdown files.

Test URL parsing and return the result.

Update the local SQLite database with data from markdown files.

Determine if an entry should be updated based on age and status.