tuple_strrchrtuple_strrchrTupleStrrchrtuple_strrchrTupleStrrchrTupleStrrchr (Operator)

Name

tuple_strrchrtuple_strrchrTupleStrrchrtuple_strrchrTupleStrrchrTupleStrrchr — Backward search for characters within a string tuple.

Signature

Description

tuple_strrchrtuple_strrchrTupleStrrchrtuple_strrchrTupleStrrchrTupleStrrchr searches within the strings of the input tuple StringStringStringStringStringstringVal for the characters of the input tuple ToFindToFindToFindToFindToFindtoFind. Both input tuples may only consist of strings. Otherwise tuple_strrchrtuple_strrchrTupleStrrchrtuple_strrchrTupleStrrchrTupleStrrchr returns an error. In any case backward search is used, i.e., every string is examined from its last to its first character. If the elements of ToFindToFindToFindToFindToFindtoFind contain more than one character, only the first character of each element is considered for searching. If StringStringStringStringStringstringVal contains only one string, all the characters defined in ToFindToFindToFindToFindToFindtoFind are searched in this string. Thus, the output tuple consists of as many elements as ToFindToFindToFindToFindToFindtoFind. Whenever a searched character has been found, the position of its first occurrence gets stored in the output tuple PositionPositionPositionPositionPositionposition . If a character can not be found, -1 will be returned instead of its position (remark: the position starts at 0 for the first character of a string). If both input tuples show the same number of elements, the search is done elementwise. I.e., the first character of the first element of ToFindToFindToFindToFindToFindtoFind is searched within the first string of StringStringStringStringStringstringVal, the first character of the second element of ToFindToFindToFindToFindToFindtoFind is searched within the second string of StringStringStringStringStringstringVal and so on. The results of the elementwise searches are returned with PositionPositionPositionPositionPositionposition that contains as many elements as StringStringStringStringStringstringVal and ToFindToFindToFindToFindToFindtoFind. If ToFindToFindToFindToFindToFindtoFind only contains one string, its first character is searched within all strings of StringStringStringStringStringstringVal. Thus, in this case PositionPositionPositionPositionPositionposition consists of as many elements as StringStringStringStringStringstringVal. If both input tuples contain more than one element and the number of elements differs for the input tuples, tuple_strrchrtuple_strrchrTupleStrrchrtuple_strrchrTupleStrrchrTupleStrrchr returns an error.

Exception: Empty input tuples

If either or both of the input tuples are empty, the operator returns an empty tuple.

HDevelop In-line Operation

HDevelop provides an in-line operation for tuple_strrchrtuple_strrchrTupleStrrchrtuple_strrchrTupleStrrchrTupleStrrchr, which can be used in an expression in the following syntax:

Position := strrchr(String, ToFind)

Parallelization

• Multithreading type: independent (runs in parallel even with exclusive operators).
• Multithreading scope: global (may be called from any thread).
• Processed without parallelization.

Parameters

Alternatives

tuple_strchrtuple_strchrTupleStrchrtuple_strchrTupleStrchrTupleStrchr, tuple_strstrtuple_strstrTupleStrstrtuple_strstrTupleStrstrTupleStrstr, tuple_strrstrtuple_strrstrTupleStrrstrtuple_strrstrTupleStrrstrTupleStrrstr, tuple_strlentuple_strlenTupleStrlentuple_strlenTupleStrlenTupleStrlen, tuple_substrtuple_substrTupleSubstrtuple_substrTupleSubstrTupleSubstr, tuple_str_first_ntuple_str_first_nTupleStrFirstNtuple_str_first_nTupleStrFirstNTupleStrFirstN, tuple_str_last_ntuple_str_last_nTupleStrLastNtuple_str_last_nTupleStrLastNTupleStrLastN, tuple_splittuple_splitTupleSplittuple_splitTupleSplitTupleSplit, tuple_environmenttuple_environmentTupleEnvironmenttuple_environmentTupleEnvironmentTupleEnvironment

Module

Foundation