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| author |  Adam Chlipala <adamc@hcoop.net> | 2009-12-05 14:01:34 -0500 |
|---|---|---|
| committer | Adam Chlipala <adamc@hcoop.net> | 2009-12-05 14:01:34 -0500 |
| commit | 20fe6fd5bb27486a7f3483ead05061e967c5a105 (patch) | |
| tree | 27acc16bb8d3b12293fbbae8b833d7ff2e731aa9 /lib/ur/string.ur | |
| parent | 7bfb616805a8c693aeb94067faf1098a0b50cbe5 (diff) | |
Represent FFI function names as strings, to deal with cross-file recursion
Diffstat (limited to 'lib/ur/string.ur')
| -rw-r--r-- | lib/ur/string.ur | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/lib/ur/string.ur b/lib/ur/string.ur index fb5a3f97..41ec666d 100644 --- a/lib/ur/string.ur +++ b/lib/ur/string.ur @@ -26,3 +26,14 @@ fun msplit {Haystack = s, Needle = chs} = | Some i => Some (substring s {Start = 0, Len = i}, sub s i, substring s {Start = i + 1, Len = length s - i - 1}) + +fun all f s = + let + val len = length s + + fun al i = + i >= len + || (f (sub s i) && al (i + 1)) + in + al 0 + end |