string()

String

string() indicates that a value must be a string to be valid. All CSV values start as strings so this function can be expected to return True unless there is a notnone or length constraint violation.

To set a min length without setting a max length use a none() argument for max. E.g. to set a string of length greater than or equal to 5 do: string(none(), 5).

Data signatures
string( value: $${\color{green}str}$$ ǁ $${\color{green}None}$$ ǁ '', [max len: $${\color{green}int}$$], [min len: $${\color{green}int}$$] )

Call signatures
string( value: Header ǁ Variable ǁ Function ǁ Reference, [max len: Term], [min len: Term] )

Purpose	Value
Main focus	string() determines if lines match
Type	String is a line() schema type

Context	Qualifier
Match qualifiers	onmatch, notnone, distinct
Value qualifiers	onmatch

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