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author | alexwl <alexey.a.kiryushin@gmail.com> | 2018-10-08 02:40:18 +0300 |
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committer | alexwl <alexey.a.kiryushin@gmail.com> | 2018-10-08 02:40:18 +0300 |
commit | f38daf67730fe31b865528eb972c619857e62a5c (patch) | |
tree | 093c30681686f834dfa4b39da119e230b19284e9 /vendor/cabal-helper-0.8.1.2/tests/bkpregex/regex-indef/Regex.hs | |
parent | 579a0f16c4f3ad2bcc8a283081d214fbe1ee3a59 (diff) |
Update cabal-helper to version 0.8.1.2 that supports Cabal (>=1.14 && <1.26 || >=2.0 && <2.5)
Building cabal-helper-0.8.1.2 with Stack failed with 'Dependency cycle detected' error. It seems to be https://github.com/commercialhaskell/stack/issues/4265 Stack bug. As a temporary solution I added source code of cabal-helper package to vendor directory and commented out 'build-tool-depends: cabal-helper:cabal-helper-wrapper' line in the cabal-helper.cabal file.
Diffstat (limited to 'vendor/cabal-helper-0.8.1.2/tests/bkpregex/regex-indef/Regex.hs')
-rw-r--r-- | vendor/cabal-helper-0.8.1.2/tests/bkpregex/regex-indef/Regex.hs | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/vendor/cabal-helper-0.8.1.2/tests/bkpregex/regex-indef/Regex.hs b/vendor/cabal-helper-0.8.1.2/tests/bkpregex/regex-indef/Regex.hs new file mode 100644 index 0000000..506566b --- /dev/null +++ b/vendor/cabal-helper-0.8.1.2/tests/bkpregex/regex-indef/Regex.hs @@ -0,0 +1,14 @@ +module Regex where + +import Prelude hiding (null) +import Str +import Regex.Types + +accept :: Reg -> Str -> Bool +accept Eps u = null u +accept (Sym c) u = u == singleton c +accept (Alt p q) u = accept p u || accept q u +accept (Seq p q) u = + or [accept p u1 && accept q u2 | (u1, u2) <- splits u] +accept (Rep r) u = + or [and [accept r ui | ui <- ps] | ps <- parts u] |