diff options
| author |  Adam Chlipala <adam@chlipala.net> | 2011-01-13 10:02:50 -0500 |
|---|---|---|
| committer | Adam Chlipala <adam@chlipala.net> | 2011-01-13 10:02:50 -0500 |
| commit | 24c29015ba668b044be7428f69058687a56d6a06 (patch) | |
| tree | ad413eedbc7c3eed30a276f339d9adf87ff01e49 /lib | |
| parent | 4eb2a196fa24d52462f3f325d73952fe2d1c12cd (diff) | |
More string processing
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/ur/basis.urs | 1 | ||||
| -rw-r--r-- | lib/ur/string.ur | 7 | ||||
| -rw-r--r-- | lib/ur/string.urs | 3 |
3 files changed, 11 insertions, 0 deletions
diff --git a/lib/ur/basis.urs b/lib/ur/basis.urs index 0b22544f..a91fd498 100644 --- a/lib/ur/basis.urs +++ b/lib/ur/basis.urs @@ -87,6 +87,7 @@ val strsub : string -> int -> char val strsuffix : string -> int -> string val strchr : string -> char -> option string val strindex : string -> char -> option int +val strsindex : string -> string -> option int val strcspn : string -> string -> int val substring : string -> int -> int -> string val str1 : char -> string diff --git a/lib/ur/string.ur b/lib/ur/string.ur index a93f7a57..59a8e5c5 100644 --- a/lib/ur/string.ur +++ b/lib/ur/string.ur @@ -10,6 +10,7 @@ val sub = Basis.strsub val suffix = Basis.strsuffix val index = Basis.strindex +fun sindex r = Basis.strsindex r.Haystack r.Needle val atFirst = Basis.strchr fun mindex {Haystack = s, Needle = chs} = @@ -50,6 +51,12 @@ fun msplit {Haystack = s, Needle = chs} = sub s i, suffix s (i + 1)) +fun ssplit r = + case sindex r of + None => None + | Some i => Some (substring r.Haystack {Start = 0, Len = i}, + suffix r.Haystack (i + length r.Needle)) + fun all f s = let val len = length s diff --git a/lib/ur/string.urs b/lib/ur/string.urs index 55133578..0861279d 100644 --- a/lib/ur/string.urs +++ b/lib/ur/string.urs @@ -11,6 +11,7 @@ val sub : t -> int -> char val suffix : t -> int -> string val index : t -> char -> option int +val sindex : {Haystack : t, Needle : t} -> option int val atFirst : t -> char -> option string val mindex : {Haystack : t, Needle : t} -> option int @@ -24,6 +25,8 @@ val split : t -> char -> option (string * string) val split' : t -> char -> option (string * string) (* The matched character is kept at the beginning of the suffix. *) val msplit : {Haystack : t, Needle : t} -> option (string * char * string) +val ssplit : {Haystack : t, Needle : t} -> option (string * string) + val all : (char -> bool) -> string -> bool val mp : (char -> char) -> string -> string |