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{-# LANGUAGE DeriveDataTypeable #-}
{-
Copyright (C) 2009 John MacFarlane <jgm@berkeley.edu>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-}
{- | Types for representing a structured formula.
-}
module Text.TeXMath.Types (Exp(..), TeXSymbolType(..), ArrayLine,
TextType(..), Alignment(..), DisplayType(..))
where
import Data.Generics
data TeXSymbolType = Ord | Op | Bin | Rel | Open | Close | Pun | Accent
deriving (Show, Read, Eq, Data, Typeable)
data Alignment = AlignLeft | AlignCenter | AlignRight | AlignDefault
deriving (Show, Read, Eq, Data, Typeable)
type ArrayLine = [[Exp]]
data Exp =
ENumber String
| EGrouped [Exp]
| EDelimited String String [Exp]
| EIdentifier String
| EMathOperator String
| ESymbol TeXSymbolType String
| ESpace String
| EBinary String Exp Exp
| ESub Exp Exp
| ESuper Exp Exp
| ESubsup Exp Exp Exp
| EOver Exp Exp
| EUnder Exp Exp
| EUnderover Exp Exp Exp
| EUp Exp Exp
| EDown Exp Exp
| EDownup Exp Exp Exp
| EUnary String Exp
| EScaled String Exp
| EStretchy Exp
| EArray [Alignment] [ArrayLine]
| EText TextType String
deriving (Show, Read, Eq, Data, Typeable)
data DisplayType = DisplayBlock
| DisplayInline
deriving Show
data TextType = TextNormal
| TextBold
| TextItalic
| TextMonospace
| TextSansSerif
| TextDoubleStruck
| TextScript
| TextFraktur
| TextBoldItalic
| TextBoldSansSerif
| TextBoldSansSerifItalic
| TextBoldScript
| TextBoldFraktur
| TextSansSerifItalic
deriving (Show, Read, Eq, Data, Typeable)
|
