def main(rule_args, callback, rei):

in_str = irods_rule_vars['*Str'][1:-1]

callback.writeLine('stdout', 'Input string is ' + in_str)

# Replaces msiString2StrArray

str_as_list = in_str.split('%')

# Combined with above, replaces msiString2KeyValPair

str_as_keyval_dict = {}

for keyval in str_as_list:

(key, val) = keyval.split('=', 1)

str_as_keyval_dict[key] = val

# Replaces writeKeyValPairs

for key, val in str_as_keyval_dict.items():

callback.writeLine('stdout', key + ' : ' + val)

# Replaces msiStrArray2String

out_str = '%'.join(str_as_list)

callback.writeLine('stdout', 'After conversion to array and back, string is')

callback.writeLine('stdout', out_str)

INPUT *Str="key1=value1%key2=value2%key3=value3"

OUTPUT ruleExecOut