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guix/tests/lang/eval-fail-substring.nix

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New primitives: * `sub' to subtract two numbers. * `stringLength' to get the length of a string. * `substring' to get a substring of a string. These should be enough to allow most string operations to be expressed.
2007-01-29 14:23:09 +00:00
builtins.substring (builtins.sub 0 1) 1 "x"
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