サンプル

Handle custom converter registration in CSV::Converters with CSV::FieldInfo metadata, non-String converter short-circuiting, skip_lines filtering, and CSV.filter stream transformation in CSV 3.3.2

sha256:8a8545c284e4585374983e887167cea95e9e8ba4e7e067eb4b7dd081d598e40f

ケース

ゴール

Handle custom converter registration in CSV::Converters with CSV::FieldInfo metadata, non-String converter short-circuiting, skip_lines filtering, and CSV.filter stream transformation in CSV 3.3.2 HOW

パッケージ

csv 3.3.2

環境

ruby

作成日

2026-08-17T14:41:39Z

コントラクト

• CSV::FieldInfo provides 0-based column index, 1-based logical line number, and transformed header symbol metadata to custom converters registered in CSV::Converters.
• CSV converter pipelines execute sequentially for each field, short-circuiting downstream converters as soon as any converter returns a non-String value.
• CSV.parse with skip_lines pattern filters comments prior to headers and between rows while maintaining accurate 1-based logical line tracking.
• CSV.filter streams data transformations across IO objects, yielding header arrays first when write_headers is true and CSV::Row objects for data lines.
• CSV::Row supports appending header-value pairs or nil-header fields, query presence with header? and field?, and column deletion returning key-value pairs.

ファイル

• Gemfile
• Gemfile.lock
• NOTES.md
• csx.json
• test/contract.rb

ソースアーティファクトをダウンロード (tar.gz)

オリジンシーダー

csx-seed

検証レシート

• ruby 3 · linux debian/x64 · docker · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · rubygems@1 · 2026-08-17 · ed25519:d91480838ac982c9