Add Social_Bookmark_extraction.R for parsing social bookmark HTML exports

[charles-hebert]

Motivation

• Provide an R utility to extract post URLs and nearby title/snippet text from local HTML exports from social platforms without relying on fragile CSS classes.
• Normalize and clean extracted links (resolve relative URLs, strip tracking/query parameters) and ensure robust handling of missing/empty titles.

Description

• Add Social_Bookmark_extraction.R which uses rvest, dplyr, and stringr and defines an editable html_path input variable.
• Collects all <a> tags and filters likely social post links using a configurable post_pattern with filter(str_detect(...)) (examples include status, feed/update, posts, story.php, permalink).
• Resolves relative links via url_absolute() using a file:// base, and removes URL query/tracking parameters with str_remove("\\?.*$").
• Extracts the nearest parent div/span (or nearest ancestor with visible text) as the title/snippet via XPath; assigns "No Title Found" for empty or missing titles; returns a clean tibble and writes bookmarks_cleaned.csv.

Testing

• Attempted to parse the script with Rscript -e "parse(file='Social_Bookmark_extraction.R')", but this failed because Rscript is not available in the current environment.
• No further automated R runtime tests were executed in this environment due to the missing Rscript executable.

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[chatgpt-codex-connector]

Keep post-identifying query strings when normalizing URLs

Stripping everything after ? removes required identifiers for query-based post URLs (for example Facebook story.php?story_fbid=...&id=...), so different posts collapse to the same normalized URL and are then dropped by distinct(url, .keep_all = TRUE). This silently loses data whenever exports contain such links; the normalization should remove only known tracking parameters rather than the entire query string.

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