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The given character is mapped to its lowercase equivalent according to Unicode 2.1.2; if the character has no lowercase equivalent, the character itself is returned.

A character has a lowercase equivalent if and only if a lowercase mapping is specified for the character in the Unicode 2.1.2 attribute table.

utolower() only deals with the general letter case conversion. For language specific case conversion behavior, use ustrToUpper(). For example, the case conversion for dot-less i and dotted I in Turkish, or for final sigma in Greek.

Returns:

the lowercase equivalent of the character, if any; otherwise the character itself.

Parameters:

ch - the character to be converted