String functions

This chapter describes the built-in 4GL functions used to manipulate character strings:

• downshift() returns a character string in which all the uppercase characters are converted to the lowercase ones
• upshift() returns a character string in which all the lowercase characters are converted to the uppercase ones
• fgl_charbool_to_intbool() converts an Informix Universal Server BOOLEAN value to a standard 4GL INTEGER value
• fgl_intbool_to_charbool() converts a standard 4GL Boolean expression to a CHAR(1) value to be stored in a BOOLEAN column of an Informix Universal Server table
• ord() returns the integer value of the first byte of its argument
• trim() removes whitespaces from the beginning and the end of a string
• length() the number of bytes in its argument
• fgl_hash() converts the character string into the hash type
• fgl_get_supported_hash_algorithms() returns the list of the hash types supported by Lycia
• sizeof() retrieves the size of an array or char variable