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[smlnj] Diff of /sml/trunk/src/cm/main/filename-policy.sml
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Diff of /sml/trunk/src/cm/main/filename-policy.sml

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revision 329, Fri Jun 11 09:53:10 1999 UTC revision 352, Wed Jun 23 09:27:27 1999 UTC
# Line 11  Line 11 
11      type policyMaker = { arch: string, os: SMLofNJ.SysInfo.os_kind } -> policy      type policyMaker = { arch: string, os: SMLofNJ.SysInfo.os_kind } -> policy
12    
13      val colocate : policyMaker      val colocate : policyMaker
14      val separate :      val separate : AbsPath.t -> policyMaker
         { root: AbsPath.t, parentArc: string, absArc: string } -> policyMaker  
15    
16      val mkBinPath : policy -> AbsPath.t -> AbsPath.t      val mkBinPath : policy -> AbsPath.t -> AbsPath.t
17      val mkSkelPath : policy -> AbsPath.t -> AbsPath.t      val mkSkelPath : policy -> AbsPath.t -> AbsPath.t
18      val mkStablePath : policy -> AbsPath.t -> AbsPath.t      val mkStablePath : policy -> AbsPath.t -> AbsPath.t
19  end  end
20    
21  structure FilenamePolicy :> FILENAMEPOLICY = struct  functor FilenamePolicyFn (val cmdir : string
22                              val skeldir : string) :> FILENAMEPOLICY = struct
23    
24      type converter = AbsPath.t -> AbsPath.t      type converter = AbsPath.t -> AbsPath.t
25    
# Line 35  Line 35 
35      fun mkPolicy shift { arch, os } = let      fun mkPolicy shift { arch, os } = let
36          fun cmpath d s = let          fun cmpath d s = let
37              val { dir = d0, file = f } = AbsPath.splitDirFile s              val { dir = d0, file = f } = AbsPath.splitDirFile s
38              val d1 = AbsPath.joinDirFile { dir = d0, file = "CM" }              val d1 = AbsPath.joinDirFile { dir = d0, file = cmdir }
39              val d2 = AbsPath.joinDirFile { dir = d1, file = d }              val d2 = AbsPath.joinDirFile { dir = d1, file = d }
40          in          in
41              AbsPath.joinDirFile { dir = d2, file = f }              AbsPath.joinDirFile { dir = d2, file = f }
# Line 43  Line 43 
43          val archos = concat [arch, "-", kind2name os]          val archos = concat [arch, "-", kind2name os]
44          val archosdep = cmpath archos o shift          val archosdep = cmpath archos o shift
45      in      in
46          { skel = cmpath "SKEL", bin = archosdep, stable = archosdep }          { skel = cmpath skeldir, bin = archosdep, stable = archosdep }
47      end      end
48    
49      val colocate = mkPolicy (fn s => s)      val colocate = mkPolicy (fn p => p)
50    
51      fun separate { root, parentArc, absArc } = let      fun separate root = let
52          val root = AbsPath.relativeContext root          val root = AbsPath.relativeContext root
53          fun shift p = let          fun shift p =
54              val s = AbsPath.name p              case AbsPath.reAnchor (p, root) of
55              fun cvt arc = if arc = OS.Path.parentArc then parentArc else arc                  SOME p' => p'
56          in                | NONE => (Say.say ["Failure: ", AbsPath.name p,
57              case OS.Path.fromString s of                                    " is not an anchored path!\n"];
58                  { isAbs = false, vol = "", arcs } =>                           raise Fail "bad path")
                     AbsPath.native { context = root,  
                                      spec = OS.Path.toString  
                                          { isAbs = false, vol = "",  
                                            arcs = map cvt arcs } }  
               | _ => AbsPath.native  
                     { context = root,  
                       spec = OS.Path.joinDirFile { dir = absArc,  
                                                    file = AbsPath.file p } }  
         end  
59      in      in
60          mkPolicy shift          mkPolicy shift
61      end      end
# Line 73  Line 64 
64      fun mkSkelPath (p: policy) s = #skel p s      fun mkSkelPath (p: policy) s = #skel p s
65      fun mkStablePath (p: policy) s = #stable p s      fun mkStablePath (p: policy) s = #stable p s
66  end  end
67    
68    structure FilenamePolicy =
69        FilenamePolicyFn (val cmdir = "NEWCM" val skeldir = "SKEL")

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