SYNOPSIS<lower $str [$mode]>
DESCRIPTION
The lower function converts each $str string value to
all lower-case letters (non-alphabetic characters are unchanged),
according to the corresponding $mode value, which is a
string-folding mode in the same format as the stringcomparemode
setting of apicp (here). The
default if empty or unspecified is the current apicp
stringcomparemode setting, but lower-case.
DIAGNOSTICSlower returns its $str parameter with all values
converted to lower case characters. $mode is an optional
stringcomparemode value.
EXAMPLE<lower "Whisper!">
The return value in $ret would be "whisper!".
CAVEATS
The lower function was added Oct. 24 1996.
The $mode argument, or usage of stringcomparemode,
was added in version 6.