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New primitives:

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* `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.
This commit is contained in:
Eelco Dolstra 2007-01-29 14:23:09 +00:00
parent 7dedbd896a
commit 7349bd0176
8 changed files with 88 additions and 6 deletions
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tests/lang/eval-fail-substring.nix Normal file
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@ -0,0 +1 @@
builtins.substring (builtins.sub 0 1) 1 "x"