OCaml Examples
OCamlOct 24, 2026OCaml aligned plain-text table renderer
Measure column widths and print a pipe-separated table with right-padded cells that aligns in any terminal.
OCamlOct 24, 2026OCaml bounded worker pool using Domain.spawn
Run independent tasks on a fixed number of OCaml 5 domains, collecting results and exceptions in one list.
OCamlOct 23, 2026OCaml base64 encoder and validating decoder
Encode a string as standard Base64 and decode it back, validating length, padding and alphabet characters.
OCamlOct 23, 2026OCaml input validation collecting field errors
Validate every field of an input record at once and return field names paired with human-readable messages.
OCamlOct 23, 2026OCaml flat JSON decoder with entry-index errors
Decode a flat JSON object into key/value pairs while reporting the failing entry index and offending text.
OCamlOct 23, 2026OCaml percent-encode and split URL query strings
Percent-encode key/value pairs into a query string and split an incoming query string back into its pairs.
OCamlOct 23, 2026OCaml GET JSON through curl with a hard timeout
Fetch JSON with curl and a hard timeout, then extract a named string field with clear error reporting.
OCamlOct 23, 2026OCaml environment config with typed validation
Read required and optional environment variables, parse integers, and return precise validation errors.
OCamlOct 23, 2026OCaml token bucket rate limiter over Unix time
Allow short bursts up to a bucket size while enforcing an average request rate, using monotonic refill math.
OCamlOct 23, 2026OCaml bounded LRU cache on an association list
Keep the most recently used keys in a fixed-capacity association-list cache that drops the least recent entry.
OCamlOct 23, 2026OCaml stable multi-key sort with nulls last
Sort records by city, then optional age with missing values last, then name, using a stable multi-key comparator.
OCamlOct 23, 2026OCaml split a list into fixed-size batches
Split a list into consecutive batches of at most n items, preserving order and rejecting non-positive sizes.
OCamlOct 23, 2026OCaml line-by-line file reader that closes its channel
Walk a text file line by line and collect its lines, closing the channel safely even if the callback raises.
OCamlOct 23, 2026OCaml deep clone and recursive merge for config trees
Copy a nested tree of key/value nodes and deep-merge a patch into it, keeping the original untouched.
OCamlOct 23, 2026OCaml retry loop with capped exponential backoff
Run a fallible operation until it succeeds, sleeping with jittered exponential backoff capped at a fixed ceiling.