StrFindW (FUN) ¶ FUNCTION StrFindW : INT Same semantics as Find from the standard.library. A null pointer will lead to a return of -1 InOut: Scope Name Type Comment Return StrFindW INT Input pst1 POINTER TO WSTRING(255) pst2 POINTER TO WSTRING(255) uiSearchStart UINT a position relative to 1, where the search starts

StrIsNullOrEmptyW (FUN) ¶ FUNCTION StrIsNullOrEmptyW : BOOL This function determines if the given string is null or empty InOut: Scope Name Type Comment Return StrIsNullOrEmptyW BOOL Input pstData CharBufferPtr simply a pointer to byte

StrLenW (FUN) ¶ FUNCTION StrLenW : DINT This function determines the length of a string by searching for a terminating zero character. The function will do its work either with native IEC-WStrings or with strings coming from external functions. It will return -1 if the given pointer to String is equal NULL InOut: Scope Name Type Comment Return StrLenW DINT Input pstData CharBufferPtr simply a pointer to byte

StrReplaceA (FUN) ¶ FUNCTION StrReplaceA Replaces <iLengthToReplace> characters of pstInput by pstReplaceWith, starting at the <iPosition>-th character position iPosition = 1 is the first character. This function was adapted from function StrReplaceW InOut: Scope Name Type Comment Input pstInput POINTER TO STRING(255) uiInputBufferSize UINT The size of the buffer, where pstInput points to pstReplaceWith POINTER TO STRING(255) iLengthInput INT iLengthToReplace INT iLengthToReplaceWith INT iPosition INT

StrToLowerA (FUN) ¶ FUNCTION StrToLowerA Converts all letters to lower case. InOut: Scope Name Type Comment Input pString CharBufferPtr Pointer to the string.

StrToUpperA (FUN) ¶ FUNCTION StrToUpperA Converts all letters to upper case. InOut: Scope Name Type Comment Input pString CharBufferPtr Pointer to the string.

StrTrimA (FUN) ¶ FUNCTION StrTrimA Remove leading and trailing whitespaces (ASCII 9, 10, 13, 32). InOut: Scope Name Type Comment Input pString POINTER TO BYTE Pointer to the string to be trimmed.

StrTrimEndA (FUN) ¶ FUNCTION StrTrimEndA Remove trailing whitespaces (ASCII 9, 10, 13, 32). InOut: Scope Name Type Comment Input pString POINTER TO BYTE Pointer to the string to be trimmed.

StrTrimStartA (FUN) ¶ FUNCTION StrTrimStartA Remove leading whitespaces (ASCII 9, 10, 13, 32). InOut: Scope Name Type Comment Input pString POINTER TO BYTE Pointer to the string to be trimmed.

CharBufferPtr (ALIAS) ¶ TYPE CharBufferPtr : POINTER TO BYTE This type will be used for all strings, that the functions of this library can use. Can be interpreted as POINTER TO STRING or POINTER TO WSTRING