Catmandu::Fix::Bind::visitor - a binder that computes Fix-es for every element in record
# If data is like: numbers: - one - two - three person: name: jennie age: 44 color: - green - purple - brown - more: foo: bar do visitor() upcase(scalar) # upcase every scalar value in the record end # will produce numbers: - ONE - TWO - THREE person: name: JENNIE age: 44 color: - GREEN - PURPLE - BROWN - more: foo: BAR do visitor() # upcase all the 'name' fields in the record if all_match(key,name) upcase(scalar) end end
The visitor binder will iterate over all the elements in a record and perform fixes on them.
Special node names are available to process every visited element:
Process a Fix on every scalar value. E.g.
upcase(scalar) replace_all(scalar,'$','tested')
Process a Fix on every array value. E.g.
sort_field(array)
Values need to be put in the 'array' field to be available for fixes. The scope of the array is limited to the array visited.
Process a Fix on every hash value. E.g.
copy_field(hash.age,hash.age2)
Values need to be put in the 'hash' field to be available for fixes. The scope of the hash is limited to the hash visited.
Provides access to the key on which the scalar,array or hash value is found. Eg.
# Upcase all 'name' fields in the record if all_match(key,name) upcase(scalar) end
A path in the data to visit:
# Visit any field do visitor() ... end # Visit only the fields at my.deep.field do visitor(-path => my.deep.field ) ... end
Catmandu::Fix::Bind
To install Catmandu, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Catmandu
CPAN shell
perl -MCPAN -e shell install Catmandu
For more information on module installation, please visit the detailed CPAN module installation guide.