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validate_set2_class_at_end

coreutils_rs::tr

Function validate_set2_class_at_end 

Source 
pub fn validate_set2_class_at_end(
    set1_len: usize,
    set2_raw_len: usize,
    set2_classes: &[CaseClassInfo],
) -> Result<(), String>
Expand description

Check if SET2 ends with a case class and SET1 is longer than SET2 (before expansion). GNU tr: “when translating with string1 longer than string2, the latter string must not end with a character class”. set1_len is the expanded length of SET1. set2_raw_len is the expanded length of SET2 before extension to match SET1. set2_classes are the case class positions in SET2.