Remove examples directory; these now live in gf-contrib

All changes have been reflected in the gf-contrib repository:
https://github.com/GrammaticalFramework/gf-contrib

Now, for WebSetup to build the example grammars, one must have gf-contrib
cloned in the same top-level directory as GF. When this isn't the case,
WebSetup displays a notice without failing.

9 files changed, 0 insertions, 1203 deletions

diff --git a/examples/letter/Letter.gf b/examples/letter/Letter.gf
deleted file mode 100644
index 537750cb0..000000000
--- a/examples/letter/Letter.gf
+++ /dev/null
@@ -1,83 +0,0 @@
-abstract Letter = {
-
---1 An Abstract Syntax for Business and Love Letters
---
--- This file defines the abstract syntax of a grammar set whose concrete syntax
--- has so far been written to five languages: English, Finnish, French, Russian,
--- and Swedish. 
---
--- The main category of the grammar is $Letter$. The other categories are
--- parts of the letter.
-
-flags startcat=Letter ;
-
-cat 
-  Letter ; 
-  Recipient ; Author ; 
-  Message ; 
-  Heading ; Ending ; 
-  Mode ; Sentence ; NounPhrase ; Position ;
-
--- There is just one top-level letter structure.
-
-fun
-  MkLetter : Heading -> Message -> Ending -> Letter ;
-
--- The heading consists of a greeting of the recipient. The $JustHello$
--- function will actually suppress the name (and title) of the recipient,
--- but the $Recipient$ argument keeps track of the gender and number.
-
-  DearRec   : Recipient -> Heading ; 
-  PlainRec  : Recipient -> Heading ;
-  HelloRec  : Recipient -> Heading ;
-  JustHello : Recipient -> Heading ;
-
--- A message is a sentence with of without a *mode*, which is either 
--- regret or honour.
-
-  ModeSent  : Mode -> Sentence -> Message ;
-  PlainSent : Sentence -> Message ;
-
-  Honour, Regret : Mode ;
-
--- The ending is either formal or informal. It does not currently depend on
--- the heading: making it so would eliminate formality mismatches between
--- the heading and the ending.
-
-  FormalEnding   : Author -> Ending ;
-  InformalEnding : Author -> Ending ;
-
--- The recipient is either a colleague, colleagues, or darling.
--- It can also be a named person. The gender distinction is made
--- because there are things in the body of the letter that depend on it.
-
-  ColleagueHe, ColleagueShe   : Recipient ;
-  ColleaguesHe, ColleaguesShe : Recipient ;
-  DarlingHe, DarlingShe       : Recipient ;
-
-  NameHe, NameShe : String -> Recipient ;
-
--- For the author, there is likewise a fixed set of titles, plus the named author.
--- Gender distinctions could be useful even here, for the same reason as with
--- $Recipient$. Notice that the rendering of $Spouse$ will depend on the
--- gender of the recipient.
-
-  President, Mother, Spouse, Dean : Author ;
-  Name      : String -> Author ;
-
--- As for the message body, no much choice is yet available: one can say that
--- the recipient is promoted to some position, that someone has gone bankrupt,
--- or that the author loves the recipient.
-
-  BePromoted : Position -> Sentence ;
-  GoBankrupt : NounPhrase -> Sentence ;
-  ILoveYou   : Sentence ;
-
-  Competitor   : NounPhrase ;
-  Company      : NounPhrase ;
-  OurCustomers : NounPhrase ;
-
-  Senior : Position ;
-  ProjectManager : Position ;
-
-}
diff --git a/examples/letter/LetterEng.gf b/examples/letter/LetterEng.gf
deleted file mode 100644
index 6bc3fc884..000000000
--- a/examples/letter/LetterEng.gf
+++ /dev/null
@@ -1,158 +0,0 @@
-concrete LetterEng of Letter = {
-
---1 An English Concrete Syntax for Business and Love Letters
---
--- This file defines the English syntax of the grammar set 
--- whose abstract syntax is $letter.Abs.gf$. 
-
-flags lexer=textlit ; unlexer=textlit ;
-
-param Sex = masc | fem ;
-param Num = sg | pl ;
-param Kas = nom | acc ;
-param DepNum = depnum | cnum Num ;
-
-oper SS     = {s : Str} ;
-oper SSDep  = {s : Num => Sex => Str} ;      -- needs Num and Sex
-oper SSSrc  = {s : Str ; n : Num ; x : Sex} ; -- gives Num and Sex
-oper SSSrc2 = {s : Num => Sex => Str ; n : DepNum ; x : Sex} ; -- gives and needs
-oper SSDep2 = {s : DepNum => Sex => Num => Sex => Str} ; -- needs Auth's & Recp's
-oper SSSrcNum  = {s : Str ; n : Num} ; -- gives Num only
-
-
-oper 
-  ss : Str -> SS = \s -> {s = s} ;
-  constNX : Str -> Num -> Sex -> SSSrc2 = \str,num,sex -> 
-    {s =  table {_ => table {_ => str}} ; n = cnum num ; x = sex} ;
-
-  dep2num : DepNum -> Num -> Num = \dn,n -> case dn of {
-    depnum  => n ; 
-    cnum cn => cn
-    } ;
-
-  RET = "" ; -- &-
-
-lincat
-Letter     = SS ;
-Recipient  = SSSrc ;
-Author     = SSSrc2 ;
-Message    = SSDep2 ;
-Heading    = SSSrc ;
-Ending     = SSSrc2 ;
-Mode       = SSDep2 ;
-Sentence   = SSDep2 ;
-NounPhrase = SSSrcNum ;
-Position   = SSDep ;
-
-lin
-MkLetter head mess end = 
-  ss (head.s ++ "," ++ RET ++ 
-      mess.s ! end.n ! end.x ! head.n ! head.x ++ "." ++ RET ++ 
-      end.s ! head.n ! head.x) ;
-
-DearRec rec   = {s = "Dear" ++ rec.s ; n = rec.n ; x = rec.x} ;
-PlainRec rec  = rec ;
-HelloRec rec  = {s = "Hello" ++ rec.s ; n = rec.n ; x = rec.x} ;
-JustHello rec = {s = "Hello"          ; n = rec.n ; x = rec.x} ;
-
-ModeSent mode sent = 
-  {s = 
-    table {dna => table {xa => table {nr => table {xr =>
-      mode.s ! dna ! xa ! nr ! xr ++ sent.s ! dna ! xa ! nr ! xr}}}}
-  } ;
-PlainSent sent = sent ;
-
-FormalEnding auth = 
-  {s = table {n => table {x => 
-     ["Sincerely yours"] ++ RET ++ auth.s ! n ! x}} ; n = auth.n ; x = auth.x} ;
-InformalEnding auth = 
-  {s = table {n => table {x => 
-     ["With best regards"] ++ RET ++ auth.s ! n ! x}} ; n = auth.n ; x = auth.x} ;
-
-ColleaguesHe  = {s = kollega ! pl ; n = pl ; x = masc} ;
-ColleaguesShe = {s = kollega ! pl ; n = pl ; x = fem} ;
-ColleagueHe  = {s = kollega ! sg ; n = sg ; x = masc} ;
-ColleagueShe = {s = kollega ! sg ; n = sg ; x = fem} ;
-DarlingHe    = {s = "darling"  ; n = sg ; x = masc} ;
-DarlingShe   = {s = "darling"  ; n = sg ; x = fem} ;
-NameHe s   = {s = s.s  ; n = sg ; x = masc} ;
-NameShe s  = {s = s.s  ; n = sg ; x = fem} ;
-
-
-Honour = {s = 
-    table {dna => table {xa => table {nr => table {xr => 
-      let {na = dep2num dna nr} in 
-      ego ! na ! nom ++ ["have the honour to inform you that"]}}}}
-  } ;
-
-Regret = {s = 
-    table {dna => table {xa => table {nr => table {xr =>
-      let {na = dep2num dna nr} in  
-      ego ! na ! nom ++ am ! na ++ ["sorry to inform you that"]}}}}
-  } ;
-
-
-President = constNX ["the President"] sg masc ;
-Mother    = constNX "Mom" sg fem ;
-Spouse    = {s = table {
-                   sg => table {fem => ["your husband"] ; masc => ["your wife"]} ; 
-                   pl => table {fem => ["your husbands"] ; masc => ["your wives"]}
-                 } ; n = depnum ; x = masc} ; -- sex does not matter here
-Dean      = constNX ["the Dean"] sg masc ;
-Name s    = constNX s.s sg masc ; ---
-
-BePromoted pos = {s = 
-    table {na => table {xa => table {nr => table {xr => 
-      ["you have been promoted to"] ++ 
-      pos.s ! nr ! xr}}}}
-  } ;
-GoBankrupt np = {s = 
-    table {na => table {xa => table {nr => table {xr => 
-      np.s ++ have ! np.n ++ ["gone bankrupt"]}}}}
-  } ;
-ILoveYou = {s = 
-    table {na => table {xa => table {nr => table {xr => 
-      ego ! dep2num na nr ! nom ++ ["love you"]}}}}
-  } ;
-    
-Company      = {s = ["our company"]          ; n = sg} ;
-Competitor   = {s = ["our worst competitor"] ; n = sg} ;
-OurCustomers = {s = ["our customers"]        ; n = pl} ;
-
-Senior = {s = 
-  table {
-    sg => table {x => ["a senior fellow"]} ;
-    pl => table {x => ["senior fellows"]}
-        }} ;
-ProjectManager = {s = 
-  table {
-    sg => table {_ => ["a project manager"]} ;
-    pl => table {_ => ["project managers"]}
-        }} ;
-
-oper 
-
-kollega : 
-  Num => Str =
-  table {sg => "colleague" ; pl => "colleagues"} ;
-
-am : 
-  Num => Str =
-  table {sg => "am" ; pl => "are"} ;
-
-have : 
-  Num => Str =
-  table {sg => "has" ; pl => "have"} ;
-
-ego : 
-  Num => Kas => Str =
-  table {
-    sg => table {nom => "I"  ; acc => "me"} ;
-    pl => table {nom => "we" ; acc => "us"}
-        } ;
-
-  -- added by John 2013-01-11 for testing syntax editor
-  printname cat Recipient = "Someone who receives a letter";
-  printname fun HelloRec = "Saying hello to a recipient";
-
-}
diff --git a/examples/letter/LetterFin.gf b/examples/letter/LetterFin.gf
deleted file mode 100644
index 6892bfcd4..000000000
--- a/examples/letter/LetterFin.gf
+++ /dev/null
@@ -1,181 +0,0 @@
-concrete LetterFin of Letter = {
-
---1 A Finnish Concrete Syntax for Business and Love Letters
---
--- This file defines the Finnish syntax of the grammar set 
--- whose abstract syntax is $letter.Abs.gf$. 
-
-flags lexer=textlit ; unlexer=textlit ; coding=utf8;
-
--- modified from French in 20 min, 15/6/2002
-
-param Gen = masc | fem ;
-param Num = sg | pl ;
-param Kas = nom | acc ;
-param DepNum = depnum | cnum Num ;
-param DepGen = depgen | cgen Gen ;
-
-oper SS     = {s : Str} ;
-oper SSDep  = {s : Num => Gen => Str} ;      -- needs Num and Gen
-oper SSSrc  = {s : Str ; n : Num ; g : Gen} ; -- gives Num and Gen
-oper SSSrc2 = {s : Num => Gen => Str ; n : DepNum ; g : DepGen} ; -- gives&needs
-oper SSDep2 = {s : DepNum => DepGen => Num => Gen => Str} ; -- needs Auth's&Rec's
-oper SSSrcGen = {s : Str ; n : Num ; g : Gen} ; -- gives Num and Gen
-
-oper 
-  ss : Str -> SS = \s -> {s = s} ;
-
-  noDep : (P : Type) -> Str -> P => Str = \_,s -> table {_ => s} ;
-
-  cher : Num => Gen => Tok = 
-    table {sg => noDep Gen "rakas" ; pl => noDep Gen "rakkaat"} ;
-
-  egosum : Num => Str = 
-    table {sg => "olen" ; pl => "olemme"} ;
-  egohabeo : Num => Str = 
-    table {sg => "minulla" ++ "on" ; pl => "meillä" ++ "on"} ;
-  fuisti : Num => Str = 
-    table {sg => "sinut" ++ "on"; pl => "teidät" ++ "on"} ;
-  quePrep = "että" ; ----
-  tuinformare : Num => Str = 
-    table {sg => "ilmoittaa" ++ "sinulle" ; pl => "ilmoittaa" ++ "teille"} ;
-  
-  regNom : Str -> Num => Str = \pora -> table {sg => pora ; pl => pora + "t"} ;
-
-  avoir : Num => Str = 
-    table {sg => "on"; pl => "ovat"} ;
- 
-  mes : Num => Str = table {sg => "minun" ; pl => "meidän"} ;
-
-  teamo : Num => Num => Str = table {
-    sg => table {sg => "rakastan" ++ "sinua" ; 
-                 pl => "rakastan" ++ "teitä"} ;
-    pl => table {sg => "rakastamme" ++ "sinua" ; 
-                 pl => "rakastamme" ++ "teitä"}
-   } ;
-
-  constNG : Str -> Num -> Gen -> SSSrc2 = \str,num,gen -> 
-    {s =  table {_ => table {_ => str}} ; n = cnum num ; g = cgen gen} ;
-
-  dep2num : DepNum -> Num -> Num = \dn,n -> case dn of {
-    depnum  => n ; 
-    cnum cn => cn
-    } ;
-  dep2gen : DepGen -> Gen -> Gen = \dg,g -> case dg of {
-    depgen  => case g of {
-      masc => fem ;
-      fem  => masc
-      };             -- negative dependence: the author is of opposite sex
-    cgen cg => cg
-    } ;
-
-  RET = "" ; -- &-
-
-lincat
-Letter     = SS ;
-Recipient  = SSSrc ;
-Author     = SSSrc2 ;
-Message    = SSDep2 ;
-Heading    = SSSrc ;
-Ending     = SSSrc2 ;
-Mode       = SSDep2 ;
-Sentence   = SSDep2 ;
-NounPhrase = SSSrcGen ;
-Position   = SSDep ;
-
-lin
-MkLetter head mess end = 
-  ss (head.s ++ "," ++ RET ++ 
-      mess.s ! end.n ! end.g ! head.n ! head.g ++ "." ++ RET ++ 
-      end.s ! head.n ! head.g) ;
-
-DearRec rec   = {s = cher ! rec.n ! rec.g ++ rec.s ; n = rec.n ; g = rec.g} ;
-PlainRec rec  = rec ;
-HelloRec rec  = {s = "Terve" ++ rec.s ; n = rec.n ; g = rec.g} ;
-JustHello rec = {s = "Terve"          ; n = rec.n ; g = rec.g} ;
-
-ModeSent mode sent = 
-  {s = 
-    table {na => table {xa => table {nr => table {xr => 
-      mode.s ! na ! xa ! nr ! xr ++ sent.s ! na ! xa ! nr ! xr}}}}
-  } ;
-PlainSent sent = sent ;
-
-FormalEnding auth = 
-  {s = table {n => table {g => ["parhain terveisin"] ++ RET ++ auth.s ! n ! g}} ; 
-   n = auth.n ; g = auth.g} ;
-InformalEnding auth = 
-  {s = table {n => table {g => ["terveisin"] ++ RET ++ auth.s ! n ! g}} ; 
-   n = auth.n ; g = auth.g} ;
-
-ColleaguesHe  = {s = regNom "kollega" ! pl  ; n = pl ; g = masc} ;
-ColleaguesShe = {s = regNom "kollega" ! pl  ; n = pl ; g = fem} ;
-ColleagueHe  = {s = regNom "kollega" ! sg ; n = sg ; g = masc} ;
-ColleagueShe = {s = regNom "kollega" ! sg ; n = sg ; g = fem} ;
-DarlingHe    = {s = "kulta"   ; n = sg ; g = masc} ;
-DarlingShe   = {s = "kulta"  ; n = sg ; g = fem} ;
-NameHe s   = {s = s.s  ; n = sg ; g = masc} ;
-NameShe s  = {s = s.s  ; n = sg ; g = fem} ;
-
-
-Honour = {s = 
-    table {na => table {xa => table {nr => table {xr => 
-      egohabeo ! dep2num na nr ++ 
-      ["kunnia"] ++ tuinformare ! nr ++ quePrep}}}}
-  } ;
-
-Regret = {s = 
-    table {na => table {ga => table {nr => table {gr =>
-      mes ! dep2num na nr ++ 
-      ["on valitettavasti ilmoitettava"] ++ quePrep}}}}
-  } ;
-
-
-President = constNG ["presidentti"] sg masc ;
-Mother    = constNG ["äiti"] sg fem ;
-Spouse    = {s = table {
-                   sg => table {fem => ["miehesi"] ; masc => ["vaimosi"]} ; 
-                   pl => table {fem => ["miehenne"] ; masc => ["vaimonne"]}
-                 } ; n = depnum ; g = depgen} ;
-Dean      = constNG ["dekaani"] sg masc ;
-Name s    = constNG s.s sg masc ; ---
-
-BePromoted pos = {s = 
-    table {na => table {xa => table {nr => table {xr => 
-      fuisti ! nr ++ "ylennetty" ++
-      pos.s ! nr ! xr}}}}
-  } ;
-GoBankrupt np = {s = 
-    table {na => 
-      table {xa => 
-        table {nr => 
-          table {xr => 
-            np.s ++ avoir ! np.n ++ 
-            (case np.n of {sg => "mennyt" ; pl => "menneet"}) ++ 
-            "konkurssiin"
-          }
-        }
-      }
-    }
-  } ;
-
-ILoveYou = {s = 
-    table {na => table {xa => table {nr => table {xr => 
-      teamo ! dep2num na nr ! nr}}}}} ;
-    
-Company      = {s = ["yrityksemme"]          ; n = sg ; g = fem} ;
-Competitor   = {s = ["pahin kilpailijamme"]    ; n = sg ; g = masc} ;
-OurCustomers = {s = ["asiakkaamme"] ; n = pl ; g = masc} ;
-
-Senior = {s = table {sg => table {g => ["vanhemmaksi tutkijaksi"]} ;
-                     pl => table {g => ["vanhemmiksi tutkijoiksi"]}
-                    } 
-         } ;
-
-ProjectManager = {s = 
-  table {
-    sg => table {_ => ["projektipäälliköksi"]} ;
-    pl => table {_ => ["projektipäälliköiksi"]}
-        }} ;
-
-}
diff --git a/examples/letter/LetterFre.gf b/examples/letter/LetterFre.gf
deleted file mode 100644
index 4eb40e6d0..000000000
--- a/examples/letter/LetterFre.gf
+++ /dev/null
@@ -1,171 +0,0 @@
-concrete LetterFre of Letter = {
-
---1 An French Concrete Syntax for Business and Love Letters
---
--- This file defines the French syntax of the grammar set 
--- whose abstract syntax is $letter.Abs.gf$. 
-
-
-flags lexer=textlit ; unlexer=textlit ; coding=utf8;
-
-param Gen = masc | fem ;
-param Num = sg | pl ;
-param Kas = nom | acc ;
-param DepNum = depnum | cnum Num ;
-param DepGen = depgen | cgen Gen ;
-
-oper SS     = {s : Str} ;
-oper SSDep  = {s : Num => Gen => Str} ;      -- needs Num and Gen
-oper SSSrc  = {s : Str ; n : Num ; g : Gen} ; -- gives Num and Gen
-oper SSSrc2 = {s : Num => Gen => Str ; n : DepNum ; g : DepGen} ; -- gives&needs
-oper SSDep2 = {s : DepNum => DepGen => Num => Gen => Str} ; -- needs Auth's&Rec's
-oper SSSrcGen = {s : Str ; n : Num ; g : Gen} ; -- gives Num and Gen
-
-oper 
-  ss : Str -> SS = \s -> {s = s} ;
-  cher : Num => Gen => Tok = 
-    table {n => table {masc => regNom "cher" ! n ; fem => regNom "chère" ! n}};
-  regAdj : Str -> Gen => Num => Str = \s -> 
-    table {masc => regNom s ; fem => regNom (s + "e")} ;
-  regNom : Str -> Num => Str = \s -> table {sg => s ; pl => s + "s"} ;
-  egosum : Num => Str = 
-    table {sg => "je" ++ "suis" ; pl => "nous" ++ "sommes"} ;
-  egohabeo : Num => Str = 
-    table {sg => "j'ai" ; pl => "nous" ++ "avons"} ;
-  fuisti : Num => Str = 
-    table {sg => "tu" ++ "as" ++ "été"; pl => "vous" ++ "avez" ++ "été"} ;
-  quePrep = "que" ; ----
-  tuinformare : Num => Str = 
-    table {sg => "t'informer"; pl => "vous" ++ "informer"} ;
-
-  avoir : Num => Str = 
-    table {sg => "a"; pl => "ont"} ;
- 
-  mes : Num => Str = table {sg => "mes" ; pl => "nos"} ;
-
-  teamo : Num => Num => Str = table {
-    sg => table {sg => "je" ++ "t'aime" ; 
-                 pl => "je" ++ "vous" ++ "aime"} ;
-    pl => table {sg => "nous" ++ "t'aimons" ; 
-                 pl => "nous" ++ "vous" ++ "aimons"}
-   } ;
-
-  constNG : Str -> Num -> Gen -> SSSrc2 = \str,num,gen -> 
-    {s =  table {_ => table {_ => str}} ; n = cnum num ; g = cgen gen} ;
-
-  dep2num : DepNum -> Num -> Num = \dn,n -> case dn of {
-    depnum  => n ; 
-    cnum sg => sg ;
-    cnum pl => pl
-    } ;
-  dep2gen : DepGen -> Gen -> Gen = \dg,g -> case dg of {
-    depgen  => case g of {
-      masc => fem ;
-      fem  => masc
-      };             -- negative dependence: the author is of opposite sex
-    cgen cg => cg
-    } ;
-
-  RET = "" ; -- &-
-
-lincat
-Letter     = SS ;
-Recipient  = SSSrc ;
-Author     = SSSrc2 ;
-Message    = SSDep2 ;
-Heading    = SSSrc ;
-Ending     = SSSrc2 ;
-Mode       = SSDep2 ;
-Sentence   = SSDep2 ;
-NounPhrase = SSSrcGen ;
-Position   = SSDep ;
-
-lin
-MkLetter head mess end = 
-  ss (head.s ++ "," ++ RET ++ 
-      mess.s ! end.n ! end.g ! head.n ! head.g ++ "." ++ RET ++ 
-      end.s ! head.n ! head.g) ;
-
-DearRec rec   = {s = cher ! rec.n ! rec.g ++ rec.s ; n = rec.n ; g = rec.g} ;
-PlainRec rec  = rec ;
-HelloRec rec  = {s = "Bonjour" ++ rec.s ; n = rec.n ; g = rec.g} ;
-JustHello rec = {s = "Bonjour"          ; n = rec.n ; g = rec.g} ;
-
-ModeSent mode sent = 
-  {s = 
-    table {na => table {xa => table {nr => table {xr => 
-      mode.s ! na ! xa ! nr ! xr ++ sent.s ! na ! xa ! nr ! xr}}}}
-  } ;
-PlainSent sent = sent ;
-
-FormalEnding auth = 
-  {s = 
-     table {n => table {g => 
-        "avec" ++ mes ! dep2num auth.n n ++ 
-        ["salutations distinguées"] ++ RET ++ auth.s ! n ! g}} ; 
-   n = auth.n ; g = auth.g} ;
-InformalEnding auth = 
-  {s = table {n => table {g => ["Amicalement"] ++ RET ++ auth.s ! n ! g}} ; 
-   n = auth.n ; g = auth.g} ;
-
-ColleaguesHe  = {s = regNom "collègue" ! pl  ; n = pl ; g = masc} ;
-ColleaguesShe = {s = regNom "collègue" ! pl  ; n = pl ; g = fem} ;
-ColleagueHe  = {s = regNom "collègue" ! sg ; n = sg ; g = masc} ;
-ColleagueShe = {s = regNom "collègue" ! sg ; n = sg ; g = fem} ;
-DarlingHe    = {s = "chéri"   ; n = sg ; g = masc} ;
-DarlingShe   = {s = "chérie"  ; n = sg ; g = fem} ;
-NameHe s   = {s = s.s  ; n = sg ; g = masc} ;
-NameShe s  = {s = s.s  ; n = sg ; g = fem} ;
-
-Honour = {s = 
-    table {na => table {xa => table {nr => table {xr => 
-      egohabeo ! dep2num na nr ++ 
-      ["l'honneur de"] ++ tuinformare ! nr ++ quePrep}}}}
-  } ;
-
-Regret = {s = 
-    table {na => table {ga => table {nr => table {gr =>
-      let {dga = dep2gen ga gr ; dna = dep2num na nr} in 
-      egosum ! dna ++ regAdj "désolé" ! dga ! dna ++ 
-      ["d'informer"] ++ quePrep}}}}
-  } ;
-
-
-President = constNG ["le président"] sg masc ;
-Mother    = constNG ["maman"] sg fem ;
-Spouse    = {s = table {
-                   sg => table {fem => ["ton mari"] ; masc => ["ta femme"]} ; 
-                   pl => table {fem => ["vos maris"] ; masc => ["vos femmes"]}
-                 } ; n = depnum ; g = depgen} ;
-Dean      = constNG ["le doyen"] sg masc ;
-Name s    = constNG s.s sg masc ; ---
-
-BePromoted pos = {s = 
-    table {na => table {xa => table {nr => table {xr => 
-      fuisti ! nr ++ regAdj "promu" ! xr ! nr ++ 
-      pos.s ! nr ! xr}}}}
-  } ;
-GoBankrupt np = {s = 
-    table {na => table {xa => table {nr => table {xr => 
-      np.s ++ avoir ! np.n ++ ["fait banqueroute"]}}}}
-  } ;
-ILoveYou = {s = 
-    table {na => table {xa => table {nr => table {xr => 
-      teamo ! dep2num na nr ! nr}}}}
-  } ;
-    
-Company      = {s = ["notre entreprise"]          ; n = sg ; g = fem} ;
-Competitor   = {s = ["notre pire compétiteur"]    ; n = sg ; g = masc} ;
-OurCustomers = {s = ["nos clients"] ; n = pl ; g = masc} ;
-
-Senior = {s = table {sg => table {g => ["responsable scientifique"]} ;
-                     pl => table {g => ["responsables scientifiques"]}
-                    } 
-         } ;
-
-ProjectManager = {s = 
-  table {
-    sg => table {_ => ["chef de projet"]} ;
-    pl => table {_ => ["chefs de projets"]}
-        }} ;
-}
diff --git a/examples/letter/LetterHeb.gf b/examples/letter/LetterHeb.gf
deleted file mode 100644
index c50d6102c..000000000
--- a/examples/letter/LetterHeb.gf
+++ /dev/null
@@ -1,216 +0,0 @@
-concrete LetterHeb of Letter = {

-

--- (c) Alex Kutsela 2005

-

-flags lexer=textlit ; unlexer=textlit ; coding=utf8 ;

-

-param Gen = masc | fem ;

-param Num = sg | pl ;

-param Kas = nom | dat | acc ;

-param DepNum = depnum | cnum Num ;

-param DepGen = depgen | cgen Gen ;

-

-oper SS     = {s : Str} ;

-oper SSDep  = {s : Num => Gen => Str} ;      -- needs Num and Gen

-oper SSSrc  = {s : Str ; n : Num ; g : Gen} ; -- gives Num and Gen

-oper SSSrc2 = {s : Num => Gen => Str ; n : DepNum ; g : DepGen} ; -- gives&needs

-oper SSDep2 = {s : DepNum => DepGen => Num => Gen => Str} ; -- needs Auth's&Rec's

-oper SSSrcGen = {s : Str ; n : Num ; g : Gen} ; -- gives Num and Gen

-

-oper 

-  ss : Str -> SS = \s -> {s = s} ;

-  regAdj : Str -> Num => Gen => Tok =\s -> table {

-     sg => table {masc => s; fem => s+"ה"};

-     pl => table {masc => s+"ים"; fem => s+"ות"}

-  };

-

-hello : Str -> Num => Str = \s -> table {sg => s ; pl => s} ;

-

-regVerPerf : Str -> Num => Gen => Str = \s -> 

-           table {sg => table {masc => s; fem => s+"ה"};

-                  pl => table {masc => s+"ו"; fem => s+"ו"}

-           };

-	

-ego : Num => Str =  table {sg => "אןי" ; pl => "אןחןו" } ;

-

-tu : Num => Gen => Kas => Str =  

-	table {sg => table {fem  => table {nom => "את";  dat => "לך"; acc => "אותך"} ;

-                            masc => table {nom => "אתה"; dat => "לך"; acc => "אותך"}    

-                     } ;  

-	       pl => table {fem  => table {nom => "אתן"; dat => "לכן"; acc => "אתכן"} ;

-                            masc => table {nom => "אתם"; dat => "לכם"; acc => "אתכם"}        

-                     }

-        };

-

-hereIam : Num => Str = 

-    table {sg => "הןןי" ; pl => "הןןו" } ;

-

-haveBeen : Str -> Num => Gen => Str = \s -> 

-           table {sg => table {masc => s+"ת"; fem => s+"ת"};

-                  pl => table {masc => s+"תם"; fem => s+"תן"}

-                 };

-

-thatConj = ["ש"] ;

- 

-regVer : Str -> Num => Gen => Str = \s -> 

-	table {sg => table {masc => s; fem => s+"ת"};

-               pl => table {masc => s+"ים"; fem => s+"ות"}

-        };

-

-constNG : Str -> Num -> Gen -> SSSrc2 = \str,num,gen -> 

-    {s =  table {_ => table {_ => str}} ; n = cnum num ; g = cgen gen} ;

-

-dep2num : DepNum -> Num -> Num = \dn,n -> case dn of {

-    depnum  => n ; 

-    cnum cn => cn

-    } ;

-dep2gen : DepGen -> Gen -> Gen = \dg,g -> case dg of {

-    depgen  => case g of {

-      masc => fem ;

-      fem  => masc

-      };             -- negative dependence: the author is of opposite sex

-    cgen cg => cg

-    } ;

-

-  RET = "" ; -- &-

-

-

-lincat

-Letter     = SS ;

-Recipient  = SSSrc ;

-Author     = SSSrc2 ;

-Message    = SSDep2 ;

-Heading    = SSSrc ;

-Ending     = SSSrc2 ;

-Mode       = SSDep2 ;

-Sentence   = SSDep2 ;

-NounPhrase = SSSrcGen ;

-Position   = SSDep ;

-

-lin

-MkLetter head mess end = 

-  ss ("," ++ head.s ++ RET ++ 

-       mess.s ! end.n ! end.g ! head.n ! head.g  ++ RET ++

-       end.s ! head.n ! head.g) ;

-

-DearRec rec   = {s = rec.s ++ regAdj "יקר" ! rec.n ! rec.g; 

-                 n = rec.n; 

-                 g = rec.g};

-PlainRec rec  = rec ;

-HelloRec rec  = {s = hello "שלום" ! rec.n ++ rec.s ; n = rec.n ; g = rec.g} ;

-JustHello rec = {s = hello "שלום" ! rec.n ; n = rec.n ; g = rec.g} ;

-

-ModeSent mode sent = 

-  {s = 

-    table {na => table {xa => table {nr => table {xr => 

-      mode.s ! na ! xa ! nr ! xr ++ sent.s ! na ! xa ! nr ! xr}}}}

-  } ;

-PlainSent sent = sent ;

-

-FormalEnding auth = 

-  {s = 

-     table {n => table {g => 

-	[", בכבוד רב"] ++ RET ++

-        auth.s ! n ! g 	 

-         }} ; 

-   n = auth.n ; g = auth.g} ;

-

-InformalEnding auth = 

-  {s = table {n => table {g => [", בברכה"] ++ RET ++ auth.s ! n ! g}} ; 

-   n = auth.n ; g = auth.g} ;

-

-ColleagueHe  = {s =  "עמית"  ; n = sg ; g = masc} ;

-ColleagueShe = {s =  "עמיתה"  ; n = sg ; g = fem} ;

-ColleaguesHe  = {s = "עמיתים"   ; n = pl ; g = masc} ;

-ColleaguesShe = {s = "עמיתות"   ; n = pl ; g = fem} ;

-DarlingHe    = {s = "אהובי"   ; n = sg ; g = masc} ; 

-DarlingShe   = {s = "אהובתי"  ; n = sg ; g = fem} ; 

-

-NameHe s   = {s = s.s  ; n = sg ; g = masc} ;

-NameShe s  = {s = s.s  ; n = sg ; g = fem} ;

-

-Honour = {s = table {

-                 na => table {

-                         xa => table {

-                                 nr => table {

-                                         xr => hereIam ! dep2num na nr ++

-                                               regVer "מתכבד" ! dep2num na nr ! dep2gen xa xr ++  

-                                               ["להודיע"] ++ tu ! nr ! xr ! dat ++ thatConj

-                                             }

-                                      }

-                              }

-                       }

-          } ;

-

-Regret = {s = table {

-                na => table {

-                        ga => table {

-                                nr => table {

-                                        gr => let {dga = dep2gen ga gr ; dna = dep2num na nr} in 

-                                        ego ! dna ++ regVer "מצטער" ! dna ! dga ++ 

-                                        ["להודיע"] ++ tu ! nr ! gr ! dat ++ thatConj

-                                            }

-                                    }

-                             }

-                     }

-           } ;

-

-Dean      = constNG ["דיקן"] sg masc ;

-President = constNG ["ןשיא"] sg masc ;

-Mother    = constNG ["אמא"] sg fem ;

-Name s    = constNG s.s sg masc ; ---

-Spouse    = {s = table {

-                   sg => table {fem => ["בעלך"] ; masc => ["אישתך"]} ; 

-                   pl => table {fem => ["בעליכן"] ; masc => ["ןשותיכם"]}

-                 } ; n = depnum ; g = depgen} ;

-

-BePromoted pos = {s = table {

-                         na => table {

-                                  xa => table {

-                                           nr => table {

-                 xr => haveBeen  "קודמ" ! nr !xr ++ "לתפקיד" ++ "של" ++ pos.s ! nr ! xr 

-                                                        }

-                                              }

-                                     }

-                           }

-                 } ;

-

-GoBankrupt np = 

-	{s = table 

-		{na => table 

-			{xa => table 

-				{nr => table 

-					{xr => np.s ++ regVerPerf "פשט" ! np.n ! np.g ++ "רגל"}

-				}

-			}

-		}

-  	} ;

-

-ILoveYou = {s = table 

-                {na => table 

-                       {ga => table 

-                              {nr => table 

-                                    {gr => let {dga = dep2gen ga gr ; dna = dep2num na nr} in

-					   ego ! dna ++ regVer "אוהב" ! dna ! dga ++ 

-                                              tu ! nr ! gr ! acc}

-                              }

-                       }

-               }

-           } ;

-

-Company      = {s = ["חברתןו"] ; n = sg ; g = fem} ;

-Competitor   = {s = ["המתחרה הגרוע ביותר שלןו"]    ; n = sg ; g = masc} ;

-OurCustomers = {s = ["לקוחותיןו"] ; n = pl ; g = masc} ;

-

-Senior = {s = table 

-		{sg => table {g => ["חבר בכיר"]} ;

-                 pl => table {g => ["חברים  בכירים"]}

-                } 

-         } ;

-

-ProjectManager = {s = table {

-			sg => table {fem => ["מןהלת פרוייקט"]; masc => ["מןהל פרוייקט"]} ;

-    			pl => table {fem => ["מןהלות פרוייקט"]; mask =>["מןהלי פרוייקט"]}

-       			}

-		} ;

-}

diff --git a/examples/letter/LetterRus.gf b/examples/letter/LetterRus.gf
deleted file mode 100644
index cad177946..000000000
--- a/examples/letter/LetterRus.gf
+++ /dev/null
@@ -1,178 +0,0 @@
-concrete LetterRus of Letter = {

-

-flags lexer=textlit ; unlexer=textlit ; coding=utf8 ;

-

-param Gen = masc | fem ;

-param Num = sg | pl ;

-param Kas = nom | acc ;

-param DepNum = depnum | cnum Num ;

-param DepGen = depgen | cgen Gen ;

-

-oper SS     = {s : Str} ;

-oper SSDep  = {s : Num => Gen => Str} ;      -- needs Num and Gen

-oper SSSrc  = {s : Str ; n : Num ; g : Gen} ; -- gives Num and Gen

-oper SSSrc2 = {s : Num => Gen => Str ; n : DepNum ; g : DepGen} ; -- gives&needs

-oper SSDep2 = {s : DepNum => DepGen => Num => Gen => Str} ; -- needs Auth's&Rec's

-oper SSSrcGen = {s : Str ; n : Num ; g : Gen} ; -- gives Num and Gen

-

-oper 

-  ss : Str -> SS = \s -> {s = s} ;

-  regAdj : Str -> Num => Gen => Tok =\s -> table {

-     sg => table {masc => s+"ой"; fem => s+"ая"};

-     pl => table {masc => s+"ие"; fem => s+"ие"}

-  };

-  regVer : Str -> Num => Gen => Str = \s -> table {

-     sg => table {masc => s; fem => s+"а"};

-     pl => table {masc => s+"ы"; fem => s+"ы"}

-  };

-  

-  hello : Str -> Num => Str = \s -> 

-    table {sg => s ; pl => s+"те" } ;

-

-  regVerPerf : Str -> Num => Gen => Str = \s -> table {

-     sg => table {masc => s+"ся"; fem => s+"ось"};

-     pl => table {masc => s+"ись"; fem => s+"ись"}

-  };

-

-  ego : Num => Str = 

-    table {sg => "я" ; pl => "вы" } ;

-  egoHave : Num => Str = 

-    table {sg => ["я имею"] ; pl => ["мы имеем"]} ;

-

-  haveBeen : Num => Gen => Str = table {

-     sg => table {masc => ["ты был"] ; fem => ["ты была"] };

-     pl => table {masc => ["вы были"]; fem => ["вы были"]}

-  };

-

-  thatPrep = [", что"] ; 

-  informYou : Num => Str = 

-    table {sg => ["сообщить тебе"]; pl => ["сообщить вам"]} ;

-    

-  loveYou : Num => Num => Str = table {

-    sg => table {sg => ["я тебя люблю"] ; 

-                 pl => ["я вас люблю"]} ;

-    pl => table {sg => ["мы тебя любим"] ; 

-                 pl => ["мы вас любим"]}

-   } ;

-

-  constNG : Str -> Num -> Gen -> SSSrc2 = \str,num,gen -> 

-    {s =  table {_ => table {_ => str}} ; n = cnum num ; g = cgen gen} ;

-

-  dep2num : DepNum -> Num -> Num = \dn,n -> case dn of {

-    depnum  => n ; 

-    cnum cn => cn

-    } ;

-  dep2gen : DepGen -> Gen -> Gen = \dg,g -> case dg of {

-    depgen  => case g of {

-      masc => fem ;

-      fem  => masc

-      };             -- negative dependence: the author is of opposite sex

-    cgen cg => cg

-    } ;

-

-  RET = "" ; -- &-

-

-lincat

-Letter     = SS ;

-Recipient  = SSSrc ;

-Author     = SSSrc2 ;

-Message    = SSDep2 ;

-Heading    = SSSrc ;

-Ending     = SSSrc2 ;

-Mode       = SSDep2 ;

-Sentence   = SSDep2 ;

-NounPhrase = SSSrcGen ;

-Position   = SSDep ;

-

-lin

-MkLetter head mess end = 

-  ss (head.s ++ "," ++ RET ++ 

-      mess.s ! end.n ! end.g ! head.n ! head.g ++ "." ++ RET ++ 

-      end.s ! head.n ! head.g) ;

-

-DearRec rec   = {s = regAdj "Дорог"

- ! rec.n ! rec.g ++ rec.s ; n = rec.n ; g = rec.g} ;

-PlainRec rec  = rec ;

-HelloRec rec  = {s = hello "Здравствуй" ! rec.n ++ rec.s ; n = rec.n ; g = rec.g} ;

-JustHello rec = {s = hello "Здравствуй" ! rec.n ; n = rec.n ; g = rec.g} ;

-

-ModeSent mode sent = 

-  {s = 

-    table {na => table {xa => table {nr => table {xr => 

-      mode.s ! na ! xa ! nr ! xr ++ sent.s ! na ! xa ! nr ! xr}}}}

-  } ;

-PlainSent sent = sent ;

-

-FormalEnding auth = 

-  {s = 

-     table {n => table {g => 

-        "С" ++  

-        ["наилучшими пожеланиями ,"] ++ RET ++ auth.s ! n ! g}} ; 

-   n = auth.n ; g = auth.g} ;

-InformalEnding auth = 

-  {s = table {n => table {g => ["С дружеским приветом , "] ++ RET ++ auth.s ! n ! g}} ; 

-   n = auth.n ; g = auth.g} ;

-

-ColleaguesHe  = {s = "коллеги"   ; n = pl ; g = masc} ;

-ColleaguesShe = {s = "коллеги"   ; n = pl ; g = fem} ;

-ColleagueHe  = {s =  "коллега"  ; n = sg ; g = masc} ;

-ColleagueShe = {s =  "коллега"  ; n = sg ; g = fem} ;

-DarlingHe    = {s = "любимый"   ; n = sg ; g = masc} ;

-DarlingShe   = {s = "любимая"  ; n = sg ; g = fem} ;

-NameHe s   = {s = s.s  ; n = sg ; g = masc} ;

-NameShe s  = {s = s.s  ; n = sg ; g = fem} ;

-

-

-Honour = {s = 

-    table {na => table {xa => table {nr => table {xr => 

-      egoHave ! dep2num na nr ++ 

-      ["честь"] ++ informYou ! nr ++ thatPrep}}}}

-  } ;

-

-Regret = {s = 

-    table {na => table {ga => table {nr => table {gr =>

-      let {dga = dep2gen ga gr ; dna = dep2num na nr} in 

-      ego ! dna ++ regVer "вынужден" ! dna ! dga ++ 

-      ["сообщить"] ++ thatPrep}}}}

-  } ;

-

-

-President = constNG ["президент"] sg masc ;

-Mother    = constNG ["мама"] sg fem ;

-Spouse    = {s = table {

-                   sg => table {fem => ["твой муж"] ; masc => ["твоя жена"]} ; 

-                   pl => table {fem => ["ваши мужья"] ; masc => ["ваши жены"]}

-                 } ; n = depnum ; g = depgen} ;

-Dean      = constNG ["декан"] sg masc ;

-Name s    = constNG s.s sg masc ; ---

-

-BePromoted pos = {s = 

-    table {na => table {xa => table {nr => table {xr => 

-      haveBeen ! nr ! xr ++ regVer  "назначен" ! nr ! xr ++ 

-      pos.s ! nr ! xr}}}}

-  } ;

-GoBankrupt np = {s = 

-    table {na => table {xa => table {nr => table {xr => 

-      np.s ++ regVerPerf "обанкротил" ! np.n ! np.g }}}}

-  } ;

-ILoveYou = {s = 

-    table {na => table {xa => table {nr => table {xr => 

-      loveYou ! dep2num na nr ! nr}}}}

-  } ;

-    

-Company      = {s = ["наше предприятие"] ; n = sg ; g = fem} ;

-Competitor   = {s = ["наш конкурент"]    ; n = sg ; g = masc} ;

-OurCustomers = {s = ["наши клиенты"] ; n = pl ; g = masc} ;

-

-Senior = {s = table {sg => table {g => ["старшим научным сотрудником"]} ;

-                     pl => table {g =>[ "старшими научными сотрудниками"]}

-                    } 

-         } ;

-

-ProjectManager = {s = 

-  table {

-    sg => table {_ => ["менеджером проекта"]} ;

-    pl => table {_ => ["менеджерами проектов"]}

-        }} ;

-

-}

diff --git a/examples/letter/LetterSwe.gf b/examples/letter/LetterSwe.gf
deleted file mode 100644
index a2ca59aa9..000000000
--- a/examples/letter/LetterSwe.gf
+++ /dev/null
@@ -1,164 +0,0 @@
-concrete LetterSwe of Letter = {
-
---1 An Swedish Concrete Syntax for Business and Love Letters
---
--- This file defines the Swedish syntax of the grammar set 
--- whose abstract syntax is $letter.Abs.gf$. 
-
-
-flags lexer=textlit ; unlexer=textlit ; coding=utf8;
-
-printname cat Letter = "Brev" ;
-printname fun MkLetter = "brevmall" ;
-
-param Sex = masc | fem ;
-param Gen = en | ett ;
-param Num = sg | pl ;
-param Kas = nom | acc ;
-param DepNum = depnum | cnum Num ;
-
-oper SS     = {s : Str} ;
-oper SSDep  = {s : Num => Sex => Str} ;      -- needs Num and Sex
-oper SSSrc  = {s : Str ; n : Num ; x : Sex} ; -- gives Num and Sex
-oper SSSrc2 = {s : Num => Sex => Str ; n : DepNum ; x : Sex} ; -- gives and needs
-oper SSDep2 = {s : DepNum => Sex => Num => Sex => Str} ; -- needs Auth's & Recp's
-oper SSSrcGen  = {s : Str ; n : Num ; g : Gen} ; -- gives Num and Gen
-
-
-oper 
-  ss : Str -> SS = \s -> {s = s} ;
-
-  constNX : Str -> Num -> Sex -> SSSrc2 = \str,num,sex -> 
-    {s =  table {_ => table {_ => str}} ; n = cnum num ; x = sex} ;
-
-  dep2num : DepNum -> Num -> Num = \dn,n -> case dn of {
-    depnum  => n ; 
-    cnum cn => cn
-    } ;
-
-  RET = "" ; -- &-
-
-lincat
-Letter     = SS ;
-Recipient  = SSSrc ;
-Author     = SSSrc2 ;
-Message    = SSDep2 ;
-Heading    = SSSrc ;
-Ending     = SSSrc2 ;
-Mode       = SSDep2 ;
-Sentence   = SSDep2 ;
-NounPhrase = SSSrcGen ;
-Position   = SSDep ;
-
-lin
-MkLetter head mess end = 
-  ss (head.s ++ "," ++ RET ++ 
-      mess.s ! end.n ! end.x ! head.n ! head.x ++ "." ++ RET ++ 
-      end.s ! head.n ! head.x) ;
-
-DearRec rec   = {s = kaer ! rec.n ! rec.x ++ rec.s ; n = rec.n ; x = rec.x} ;
-PlainRec rec  = rec ;
-HelloRec rec  = {s = "Hej" ++ rec.s ; n = rec.n ; x = rec.x} ;
-JustHello rec = {s = "Hej"          ; n = rec.n ; x = rec.x} ;
-
-ModeSent mode sent = 
-  {s = 
-    table {na => table {xa => table {nr => table {xr => 
-      mode.s ! na ! xa ! nr ! xr ++ sent.s ! na ! xa ! nr ! xr}}}}
-  } ;
-PlainSent sent = sent ;
-
-FormalEnding auth = 
-  {s = table {n => table {x => 
-     ["Med vänlig hälsning"] ++ RET ++ auth.s ! n ! x}} ; n = auth.n ; x = auth.x} ;
-
-InformalEnding auth = 
-  {s = table {n => table {x => 
-     ["Med hälsningar"] ++ RET ++ auth.s ! n ! x}} ; n = auth.n ; x = auth.x} ;
-
-ColleaguesHe  = {s = kollega ! pl ; n = pl ; x = masc} ;
-ColleaguesShe = {s = kollega ! pl ; n = pl ; x = fem} ;
-ColleagueHe  = {s = kollega ! sg ; n = sg ; x = masc} ;
-ColleagueShe = {s = kollega ! sg ; n = sg ; x = fem} ;
-DarlingHe    = {s = "älskling"  ; n = sg ; x = masc} ;
-DarlingShe   = {s = "älskling"  ; n = sg ; x = fem} ;
-NameHe s   = {s = s.s  ; n = sg ; x = masc} ;
-NameShe s  = {s = s.s  ; n = sg ; x = fem} ;
-
-Honour = {s = 
-    table {na => table {xa => table {nr => table {xr => 
-      jag ! dep2num na nr ! nom ++ ["har äran att meddela"] ++ 
-      du ! nr ! acc ++ "att"}}}}
-  } ;
-
-Regret = {s = 
-    table {na => table {xa => table {nr => table {xr => 
-      jag ! dep2num na nr ! nom ++ ["måste tyvärr meddela"] ++ 
-      du ! nr ! acc ++ "att"}}}}
-  } ;
-
-
-President = constNX ["Presidenten"] sg masc ;
-Mother    = constNX ["Mamma"] sg fem ;
-Spouse    = {s = table {
-                   sg => table {fem => ["din man"] ; masc => ["din hustru"]} ; 
-                   pl => table {fem => ["era män"] ; masc => ["era hustrur"]}
-                 } ; n = depnum ; x = masc} ; -- sex does not matter here
-Dean      = constNX ["Dekanus"] sg masc ;
-Name s    = constNX s.s sg masc ; ---
-
-BePromoted pos = {s = 
-    table {na => table {xa => table {nr => table {xr => 
-      du ! nr ! nom ++ ["har blivit"] ++ befordrad ! nr ++
-      "till" ++ pos.s ! nr ! xr}}}}
-  } ;
-GoBankrupt np = {s = 
-    table {na => table {xa => table {nr => table {xr => 
-      np.s ++ ["har gått i konkurs"]}}}}
-  } ;
-ILoveYou = {s = 
-    table {na => table {xa => table {nr => table {xr => 
-      jag ! dep2num na nr ! nom ++ ["älskar"] ++ du ! nr ! acc}}}}
-  } ;
-    
-Company      = {s = ["vårt företag"]          ; n = sg ; g = ett} ;
-Competitor   = {s = ["vår värsta konkurrent"] ; n = sg ; g = en} ;
-OurCustomers = {s = ["våra kunder"] ; n = pl ; g = en} ;
-
-Senior = {s = table {n => table {x => ["äldre forskare"]}}} ;
-ProjectManager = {s = 
-  table {
-    sg => table {_ => "projektchef"} ;
-    pl => table {_ => "projektchefer"}
-        }} ;
-
-oper 
-
-kaer : 
-  Num => Sex => Str =
-  table {
-    sg => table {masc => "Käre" ; fem => "Kära"} ;
-    pl => table {_ => "Kära"}
-        } ;
-
-kollega : 
-  Num => Str =
-  table {sg => "kollega" ; pl => "kollegor"} ;
-
-befordrad : 
-  Num => Str =
-  table {sg => "befordrad" ; pl => "befordrade"} ;
-
-jag : 
-  Num => Kas => Str =
-  table {
-    sg => table {nom => "jag" ; acc => "mig"} ;
-    pl => table {nom => "vi"  ; acc => "oss"}
-        } ;
-du : 
-  Num => Kas => Str =
-  table {
-    sg => table {nom => "du" ; acc => "dig"} ;
-    pl => table {nom => "ni" ; acc => "er"}
-        } ;
-}
diff --git a/examples/letter/README b/examples/letter/README
deleted file mode 100644
index d1691f721..000000000
--- a/examples/letter/README
+++ /dev/null
@@ -1,35 +0,0 @@
-GF challenges Microsoft Works! Here you find templates for
-multilingual authoring of business and love letters!
-
-Another point of these grammars is to illustrate how
-local updates are propagated everywhere in the document.
-Form, in the editor
-
-  Dear Colleague,
-
-  I love you.
-
-  With best regards,
-
-    your wife
-
-and change between ColleagueHe, ColleagueShe, ColleaguesHe, ColleaguesShe.
-
-The grammars are somewhat ad hoc and messy, and could be improved
-with better abstractions.
-
-(AR 2001)
-
-To use the grammars in an editor, first compile them to javascript:
-
-  gfc --make --output-format=js Letter???.gf
-
-Then open the file ./editor/editor.html in a web browser. You also need the javascript
-libraries from
-
-  GF/lib/javascript/
-
-Copyright (c) 2001-2008 Janna Khegai, Alex Kutsela, Aarne Ranta
-under GNU General Public License (GPL).
-
-Document last updated December 4, 2008, by Aarne Ranta.
diff --git a/examples/letter/editor/editor.html b/examples/letter/editor/editor.html
deleted file mode 100644
index 5c9aa4fc5..000000000
--- a/examples/letter/editor/editor.html
+++ /dev/null
@@ -1,17 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">

-

-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">

-	<head>

-		<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />

-  		<link rel="stylesheet" type="text/css" href="style.css" />

-		<script type="text/javascript" src="gflib.js"></script>

-		<script type="text/javascript" src="editorGrammar.js"></script>

-		<script type="text/javascript" src="grammar.js"></script>

-		<script type="text/javascript" src="gfjseditor.js"></script>

-  		<title>Web-based Syntax Editor</title>

-	</head>

-	<body onload="mkEditor('editor',Letter)" onkeydown="hotKeys(event)">

-		<div id="editor">

-		</div>

-	</body>

-</html>