diff options
Diffstat (limited to 'src/boot/pile.boot')
| -rw-r--r-- | src/boot/pile.boot | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/src/boot/pile.boot b/src/boot/pile.boot index 9f9fcd96..19c48923 100644 --- a/src/boot/pile.boot +++ b/src/boot/pile.boot @@ -1,6 +1,6 @@ -- Copyright (c) 1991-2002, The Numerical Algorithms Group Ltd. -- All rights reserved. --- Copyright (C) 2007-2009, Gabriel Dos Reis. +-- Copyright (C) 2007-2010, Gabriel Dos Reis. -- All rights reserved. -- -- Redistribution and use in source and binary forms, with or without @@ -94,15 +94,15 @@ shoePileCtree(x,y) == -- only enshoePiles forests with >=2 trees shoePileCforest x== - null x => [] - null rest x => first x + x = nil => [] + rest x = nil => first x a := first x b := shoePileCoagulate(a,rest x) - null rest b => first b + rest b = nil => first b shoeEnPile shoeSeparatePiles b shoePileCoagulate(a,b)== - null b => [a] + b = nil => [a] c := first b shoeTokPart CAAR c = "THEN" or shoeTokPart CAAR c = "ELSE" => shoePileCoagulate (dqAppend(a,c),rest b) @@ -114,8 +114,8 @@ shoePileCoagulate(a,b)== cons(a,shoePileCoagulate(c,rest b)) shoeSeparatePiles x== - null x => [] - null rest x => first x + x = nil => [] + rest x = nil => first x a := first x semicolon := dqUnit shoeTokConstruct("KEY", "BACKSET",shoeLastTokPosn a) dqConcat [a,semicolon,shoeSeparatePiles rest x] |