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| author | Joey Hess <joeyh@joeyh.name> | 2017-02-15 15:22:13 -0400 |
|---|---|---|
| committer | Joey Hess <joeyh@joeyh.name> | 2017-02-15 15:22:13 -0400 |
| commit | 4f29d576115d1bcbed60eacb3642523f1b5f480f (patch) | |
| tree | cb4b5ada932bbdea7c4ee97008fc871cd810b543 /doc/forum/Inherited_Variables.../comment_5_6fbd29f568ec8b97be47874e2aac57a3._comment | |
| parent | 6e3192f0d2e063f07d7a5d2b96648e9167cc576a (diff) | |
| parent | b29bab35747e6345a4818e5a77c53d029562e3c3 (diff) | |
Merge branch 'master' into joeyconfig
Diffstat (limited to 'doc/forum/Inherited_Variables.../comment_5_6fbd29f568ec8b97be47874e2aac57a3._comment')
| -rw-r--r-- | doc/forum/Inherited_Variables.../comment_5_6fbd29f568ec8b97be47874e2aac57a3._comment | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/doc/forum/Inherited_Variables.../comment_5_6fbd29f568ec8b97be47874e2aac57a3._comment b/doc/forum/Inherited_Variables.../comment_5_6fbd29f568ec8b97be47874e2aac57a3._comment new file mode 100644 index 00000000..16819bd6 --- /dev/null +++ b/doc/forum/Inherited_Variables.../comment_5_6fbd29f568ec8b97be47874e2aac57a3._comment @@ -0,0 +1,20 @@ +[[!comment format=mdwn + username="joey" + subject="""comment 5""" + date="2017-02-03T19:32:58Z" + content=""" +What you're looking for is not a regexp, but Haskell's [pattern +matching](https://www.haskell.org/tutorial/patterns.html). + +For example: + + myproperty :: Property Debian + myproperty = withOS "some desc here" $ \w o -> case o of + -- Pattern match on the OS, to get the Debian stable release + (Just (System (Debian _kernel (Stable release)) _arch)) -> + ensureProperty w $ Apt.setSourcesListD (sourcesLines release) "mysources" + _ -> unsupportedOS + + sourcesLines :: Release -> [Line] + sourcesLines release = undefined +"""]] |