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2026-05-02 | ๐ค Expand Abbreviations: BlogSeriesConfig, NavLinkResult, env, fm, ls ๐ค

๐ฏ What We Did
๐ค This session continued the long-running campaign to eliminate abbreviated names from the Haskell codebase, completing pass eleven of the incremental plan. ๐ We expanded twenty abbreviated names across seven source files and four test files, each rename making the code a little more self-documenting and a little less reliant on programmer memory.
๐๏ธ The Twenty Steps
๐งฉ Step 1 โ ReflectionTitle.hs
๐ก The final item from the previous pass: in the function named stripInlinePreamble, the local variable idx was renamed to index. ๐ฏ The pattern match now reads: Just index, bar, index greater than zero, yields a trimmed drop of the text at position index.
โ๏ธ Steps 2 and 3 โ SocialPosting.hs
๐ In the addToGroup accumulator function, acc was renamed to grouped. ๐ Then the parameter env, passed through seven functions to carry an EnvironmentConfig value, was renamed to environmentConfig throughout. ๐ The chain: postToPlatform, postToTwitterPlatform, postToBlueskyPlatform, postToMastodonPlatform, runPostingPipeline, processNoteGroup, postForPlatform, and the top-level autoPost function โ all updated in one surgical pass.
๐ Steps 4 through 9 โ AiBlogLinks.hs and its NavLinkResult record
๐งฉ Six names were expanded in AiBlogLinks.hs. ๐ The local ls variable in updateNavLinks became contentLines, matching the established pattern used throughout the codebase. ๐ข The loop variable idx was renamed to index in both updateNavLinks and processFile. ๐ฏ The lambda parameter p in the local findIndex helper became predicate, making the contract explicit. ๐ The local fm binding in extractAiBlogTitle became frontmatter, following the convention set by all other frontmatter consumers. ๐ท๏ธ Finally, the two record fields of NavLinkResult had their Hungarian-notation prefixes removed: nlrFilename became filename and nlrModified became modified. ๐ Both callers โ TaskRunners.hs and AiBlogLinksTest.hs โ were updated accordingly.
๐ท๏ธ Steps 10 through 18 โ BlogSeriesConfig record fields
๐ค Nine record field prefixes were removed from BlogSeriesConfig in one coordinated change. ๐ The bsc prefix stood for Blog Series Config, a redundant annotation that the type itself already provides. ๐ Here is the complete mapping:
๐ข First, bscId became identifier, because id is a Prelude function that would shadow in scope.
๐ก Second, bscName became name.
๐จ Third, bscIcon became icon.
โ๏ธ Fourth, bscAuthor became author.
๐ Fifth, bscBaseUrl became baseUrl.
๐ค Sixth, bscPriorityUser became priorityUser.
๐ Seventh, bscNavLink became navLink.
โฐ Eighth, bscScheduleTime became scheduleTime.
๐ Ninth, bscContextQueries became contextQueries.
๐ These nine renames required updating fourteen files: the definition in BlogSeriesConfig.hs, the constructors in AiBlogLinks.hs and BlogSeriesDiscovery.hs, the dispatcher in RunScheduled.hs, the domain functions in Wikilink.hs, BlogSeries.hs, BlogPrompt.hs, DailyReflection.hs, and TaskRunners.hs, and five test files. ๐งจ Two subtle challenges arose:
๐ In BlogSeries.hs, the annotateWithMetadata function had local let bindings named name and icon. After the field rename, writing name equals name series would create a recursive binding because let bindings are mutually recursive in Haskell. ๐ ๏ธ The fix was to rename the local variables to displayName and displayIcon.
๐ Similarly in BlogPrompt.hs, the sanitizeTitle where clause had a local binding named icon equals bscIcon series. After rename, icon equals icon series would be recursive. ๐ ๏ธ The fix was to rename the local binding to seriesIcon throughout the where block.
โ ๏ธ A third challenge came from the test file BlogSeriesDiscoveryTest.hs, which imports both BlogSeriesConfig and DiscoveredSeries. After the rename, three field names became ambiguous because DiscoveredSeries already used scheduleTime, priorityUser, and contextQueries. ๐ก๏ธ The fix was to change the BlogSeriesConfig import from a wildcard to a qualified import aliased as BSC, so all BlogSeriesConfig field accesses are written as BSC dot fieldName, and DiscoveredSeries fields remain unqualified.
๐ Steps 19 and 20 โ Frontmatter.hs
๐ก The final two steps landed in Frontmatter.hs. ๐ The ls variable in parseFrontmatter became contentLines. ๐ The fm variable in deriveUrl, readReflection, and readNote became frontmatter.
โ Outcome
๐งช All 2031 tests pass. ๐งน HLint reports zero hints. ๐๏ธ The build is clean with zero warnings under negative-Wall negative-Werror.
๐ Book Recommendations
๐ Similar
- ๐งผ๐พ Clean Code: A Handbook of Agile Software Craftsmanship by Robert C. Martin is relevant because it provides the foundational argument for meaningful names, arguing that names should reveal intent and that brevity is rarely a virtue in modern code.
- The Pragmatic Programmer by David Thomas and Andrew Hunt is relevant because it covers the principle of speaking the language of the domain, which is exactly what replacing abbreviated record field prefixes with plain domain words achieves.
โ๏ธ Contrasting
- โ ๐ป Code Complete by Steve McConnell offers a contrasting view that some abbreviations are acceptable when they are universally understood, pushing back against the idea that every name must be spelled out in full.
๐ Related
- Working Effectively with Legacy Code by Michael C. Feathers is relevant because the incremental rename strategy used here โ one name at a time, with a passing build after each change โ is exactly the kind of safe, test-driven refactoring technique Feathers recommends for improving code that cannot be rewritten wholesale.