Description - Mks.com

substr(expression, position)
returns the substring of the first string, starting at the position given by the second argument
(an integer expression). Strings are 1-origin; however, for convenience, if the value of
position is 0, substr returns the substring beginning at 1. If position is negative, it is taken
to be an offset from the end of the string. For example:
substr("hello",0) = substr("hello",1) -> "hello"
substr("hello",length("hello")) -> "o"
substr("hello",-3) -> "llo"
substr("hello",-1) -> "o"
substr may also take three arguments, as in:
substr(expression, position, length)
The length argument is an integer expression, giving the desired number of characters in
the substring. If this value is negative, the substring is obtained by advancing to the
indicated position, marking that the end, and then retreating by the specified amount. For
example:
substr("hello",0,1) = substr("hello",1,1) -> "h"
substr("hello",-1,-3) -> "llo"
tail(indexable_object)
returns the unread portion of an indexable_object.
tempfile([dir_str], pre)
returns a string guaranteed to be an unused temporary file name in the directory specified
by dir_str. If no dir_str is provided, then the directory specified by TMPDIR is used; if
TMPDIR is not set, the system default is used (usually /tmp. If pre is not an empty string, it
is taken as a prefix for the name of the temporary file.
tolower(expression)
returns the string expression with all uppercase characters translated to lowercase.
toupper(expression)
does the opposite translation.
AVAILABILITY
MKS Toolkit for Developers
MKS Toolkit for Interoperability
MKS Toolkit for Professional Developers
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