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rhcarvalho
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Jun 28, 2025
| MyApp.CSV, | ||
| NimbleCSV.RFC4180.options() | ||
| |> Keyword.merge( | ||
| escape_formula: %{~w(@ + - = \\t \\r) => "'"}, |
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For some reason ExDoc needed the \\t and \\r escaping, otherwise it would produce a broken code snippet by interpreting the tab and carriage return.
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| """ | ||
| @callback options() :: keyword() |
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Made it a callback to match the other parts of the API.
| * `:escape_formula` - an optional map of formula prefixes to escape sequences. | ||
| When `nil` (the default), formula escaping is disabled. For example, | ||
| `%{~w(@ + - = \t \r) => "'"}` escapes fields starting with `@`, `+`, `-`, `=`, | ||
| tab, or carriage return by prefixing them with `'` |
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Reworded this to improve flow. Similar to :trim_bom, :escape_formula requires more explanation so ends up being multiple sentences. Still, like all options, it doesn't end with punctuation.
| follow the [OWASP recommendations](https://owasp.org/www-community/attacks/CSV_Injection): | ||
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| escape_formula: %{["@", "+", "-", "=", "\t", "\r"] => "'"} | ||
| escape_formula: %{~w(@ + - = \t \r) => "'"} |
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Changed for consistency.
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💚 💙 💜 💛 ❤️ |
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Based on #86 (comment) / #86 (comment), to make it easier to customize the existing CSV modules, in particular to add formula escaping (on user code).