/##
	Copyright 2021 Kyle Gunger

	This file is licensed under the CDDL 1.0 (the License)
	and may only be used in accordance with the License.
	You should have received a copy of the License with this
	software/source code. If you did not, a copy can be found
	at the following URL:

	https://opensource.org/licenses/CDDL-1.0

	THIS SOFTWARE/SOURCE CODE IS PROVIDED "AS IS" WITH NO
	WARRANTY, GUARANTEE, OR CLAIM OF FITNESS FOR ANY PURPOSE
	EXPRESS OR IMPLIED
#/

/# util.tnsl
    Utility functions that may be useful in many places.
#/

/; string_equate(~{}charp s1, s2) [bool]
    /; if (len s1` !== len s2`)
        ;return false
    ;/

    /; loop (int i = 0; i < len s1`) [i++]
        /; if (s1`{i} !== s2`{i})
            ;return false
        ;/
    ;/

    ;return true
;/

/; is_whitespace (charp c) [bool]
	;return c == '\t' || c == '\n' || c == ' '
;/

/; is_digit (charp c) [bool]
	;return c !< '0' && c !> '9'
;/

/; is_alpha (charp c) [bool]
    ;bool low = c !< 'A' && c !> 'Z', high = c !< 'a' && c >! 'z'
    ;return low || high
;/