Catmandu::Fix::lookup(3) change the value of a HASH key or ARRAY index by

SYNOPSIS


lookup(foo.bar, dictionary.csv)
lookup(foo.bar, dictionary.csv, sep_char: |)
# delete value if the lookup fails:
lookup(foo.bar, dictionary.csv, delete: 1)
# use a default value if the lookup fails:
lookup(foo.bar, dictionary.csv, default: 'default value')

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