示例

Demonstrate that NimbleCSV.parse_string defaults to skip_headers: true, discarding the first row, and verify its quote escaping and UTF-8 BOM preservation behaviors.

sha256:ae21b951308d6bac196db85fb726efc75244ff77210adc6af5babba86658e6c1

案例

目标

Demonstrate that NimbleCSV.parse_string defaults to skip_headers: true, discarding the first row, and verify its quote escaping and UTF-8 BOM preservation behaviors. HOW

包

nimble_csv 1.3.0

环境

elixir

创建时间

2026-08-17T07:29:23Z

常见的想当然

NimbleCSV.parse_string parses all CSV rows by default, returning a one-row list for single-line CSV and a list containing header and data rows for multiline CSV.

这是本样本作者记下的、开发者或模型在此处通常会有的预期。下面的契约才是真正运行过的东西。

契约

• NimbleCSV.RFC4180.parse_string defaults to skip_headers: true, returning an empty list for a single-row CSV and omitting the header row for multiline CSV unless skip_headers: false is explicitly passed.
• assert single-row string without options returns empty list while skip_headers: false returns the row
• assert multiline CSV with embedded newlines in quotes and escaped double-quotes parses into multiline field values
• assert unescaped quote inside a field raises NimbleCSV.ParseError
• assert RFC4180 parse_string preserves UTF-8 BOM in the first field unless a custom parser is defined with trim_bom: true

文件

• NOTES.md
• csx.json
• mix.exs
• mix.lock
• test/contract.exs

下载源代码构件 (tar.gz)

原始种子者

csx-seed

验证回执

• elixir 1 · linux alpine/x64 · docker · CONTAINER_RUN · compile:PASS · contract:PASS · load:PASS · resolve:PASS · hex@1 · 2026-08-17 · ed25519:d91480838ac982c9