From 30cda5151651e712803527b6ab4e5abc07536f2c Mon Sep 17 00:00:00 2001
From: hallgren <hallgren@chalmers.se>
Date: Sun, 27 Jul 2014 22:06:23 +0000
Subject: Introducing GF.Text.Pretty for more concise pretty printers and
 GF.Infra.Location for modularity

GF.Text.Pretty provides the class Pretty and overloaded versions of the pretty
printing combinators in Text.PrettyPrint, allowing pretty printable values to
be used directly instead of first having to convert them to Doc with functions
like text, int, char and ppIdent. Some modules have been converted to use
GF.Text.Pretty, but not all. Precedences could be added to simplify the pretty
printers for terms and patterns.

GF.Infra.Location contains the types Location and L, factored out from
GF.Grammar.Grammar, and the class HasSourcePath. This allowed the import
of GF.Grammar.Grammar to be removed from GF.Infra.CheckM, making it more
like a pure library module.
---
 src/compiler/GF/Command/Commands.hs | 28 ++++++++++++++--------------
 1 file changed, 14 insertions(+), 14 deletions(-)

(limited to 'src/compiler/GF/Command')

diff --git a/src/compiler/GF/Command/Commands.hs b/src/compiler/GF/Command/Commands.hs
index b6a992232..701a98f3b 100644
--- a/src/compiler/GF/Command/Commands.hs
+++ b/src/compiler/GF/Command/Commands.hs
@@ -47,7 +47,7 @@ import Data.Maybe
 import qualified Data.Map as Map
 --import System.Cmd(system) -- use GF.Infra.UseIO.restricedSystem instead!
 import GF.System.Process
-import Text.PrettyPrint
+import GF.Text.Pretty
 import Data.List (sort)
 --import Debug.Trace
 --import System.Random (newStdGen) ----
@@ -762,19 +762,19 @@ allCommands = Map.fromList [
                                 Just e  -> let (es,err) = exprs ls
                                            in case inferExpr pgf e of
                                                 Right (e,t) -> (e:es,err)
-                                                Left tcerr  -> (es,text "on line" <+> int n <> colon $$ nest 2 (ppTcError tcerr) $$ err)
+                                                Left tcerr  -> (es,"on line" <+> n <> ':' $$ nest 2 (ppTcError tcerr) $$ err)
                                 Nothing -> let (es,err) = exprs ls
-                                           in (es,text "on line" <+> int n <> colon <+> text "parse error" $$ err)
+                                           in (es,"on line" <+> n <> ':' <+> "parse error" $$ err)
            returnFromLines ls = case exprs ls of
-                                  (es, err) | null es   -> return $ pipeMessage $ render (err $$ text "no trees found")
+                                  (es, err) | null es   -> return $ pipeMessage $ render (err $$ "no trees found")
                                             | otherwise -> return $ pipeWithMessage es (render err)
 
        s <- restricted $ readFile file
        case opts of
          _ | isOpt "lines" opts && isOpt "tree" opts ->
-               returnFromLines (zip [1..] (lines s))
+               returnFromLines (zip [1::Int ..] (lines s))
          _ | isOpt "tree" opts ->
-               returnFromLines [(1,s)]
+               returnFromLines [(1::Int,s)]
          _ | isOpt "lines" opts -> return (fromStrings $ lines s)
          _ -> return (fromString s),
      flags = [("file","the input file name")]
@@ -1145,9 +1145,9 @@ allCommands = Map.fromList [
                                                         render (ppCat id cd $$
                                                                 if null (functionsToCat pgf id)
                                                                   then empty
-                                                                  else space $$
+                                                                  else ' ' $$
                                                                        vcat [ppFun fid (ty,0,Just [],0,0) | (fid,ty) <- functionsToCat pgf id] $$
-                                                                       space)
+                                                                       ' ')
                                                      let (_,_,prob,_) = cd
                                                      putStrLn ("Probability: "++show prob)
                                                      return void
@@ -1290,7 +1290,7 @@ allCommands = Map.fromList [
      | otherwise            = case po of
                                 ParseOk ts     -> let Piped (es',msg') = fromExprs ts
                                                   in (es'++es,msg'++msg)
-                                TypeError errs -> ([], render (text "The parsing is successful but the type checking failed with error(s):" $$
+                                TypeError errs -> ([], render ("The parsing is successful but the type checking failed with error(s):" $$
                                                                nest 2 (vcat (map (ppTcError . snd) errs)))
                                                        ++ "\n" ++ msg)
                                 ParseFailed i  -> ([], "The parser failed at token " ++ show (words s !! max 0 (i-1))
@@ -1448,13 +1448,13 @@ execToktok (pgf, _) opts exprs = do
 
 trie = render . pptss . toTrie . map toATree
   where
-    pptss [ts] = text "*"<+>nest 2 (ppts ts)
-    pptss tss  = vcat [int i<+>nest 2 (ppts ts)|(i,ts)<-zip [1..] tss]
+    pptss [ts] = "*"<+>nest 2 (ppts ts)
+    pptss tss  = vcat [i<+>nest 2 (ppts ts)|(i,ts)<-zip [(1::Int)..] tss]
 
     ppts = vcat . map ppt
 
     ppt t =
       case t of
-        Oth e     -> text (showExpr [] e)
-        Ap f [[]] -> text (showCId f)
-        Ap f tss  -> text (showCId f) $$ nest 2 (pptss tss)
+        Oth e     -> pp (showExpr [] e)
+        Ap f [[]] -> pp (showCId f)
+        Ap f tss  -> showCId f $$ nest 2 (pptss tss)
-- 
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