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+/##
+	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
+;/