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/* -*- mode: objc; coding: utf-8 -*- */
/* Étoilisp/Mulklisp, a Common Lisp subset for the Étoilé runtime.
* Copyright (C) 2008 Matthias Andreas Benkard.
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*/
#import "MLKLispValue.h"
#import <Foundation/NSObject.h>
#import <Foundation/NSString.h>
@class MLKFuncallable, NSMutableDictionary;
enum MLKReadtableCase
{
MLKReadtableCase_UPCASE,
MLKReadtableCase_DOWNCASE,
MLKReadtableCase_INVERT,
MLKReadtableCase_PRESERVE
};
enum MLKSyntaxType
{
CONSTITUENT = 0,
WHITESPACE = 1,
TERMINATING_MACRO = 2,
NONTERMINATING_MACRO = 3,
SINGLE_ESCAPE = 4,
MULTI_ESCAPE = 5
};
enum MLKConstituentTrait
{
ALPHABETIC = 1,
INVALID = 2,
PACKAGE_MARKER = 4,
ALPHA_DIGIT = 8,
EXPONENT_MARKER = 16,
NUMBER_MARKER = 32,
RATIO_MARKER = 64,
DECIMAL_POINT = 128,
MINUS_SIGN = 256,
PLUS_SIGN = 512,
SIGN = 1024,
DOT = 2048
};
@interface MLKReadtable : MLKLispValue <NSCopying>
{
NSMutableDictionary *_syntaxTable;
NSMutableDictionary *_readerMacros;
NSMutableDictionary *_traits;
//MLKFuncallable *_caseConverter;
enum MLKReadtableCase _case;
}
-(MLKReadtable *) init;
-(MLKReadtable *) copyWithZone:(NSZone *)zone;
-(BOOL) isWhitespaceCharacter:(unichar)ch;
-(BOOL) isMacroCharacter:(unichar)ch;
-(BOOL) isNonTerminatingMacroCharacter:(unichar)ch;
-(BOOL) isTerminatingMacroCharacter:(unichar)ch;
-(BOOL) isSingleEscapeCharacter:(unichar)ch;
-(BOOL) isMultipleEscapeCharacter:(unichar)ch;
-(BOOL) isConstituentCharacter:(unichar)ch;
-(BOOL) characterHasCase:(unichar)ch;
// Constituent traits.
-(BOOL) isInvalid:(unichar)ch;
-(BOOL) isAlphabetic:(unichar)ch;
-(BOOL) isPackageMarker:(unichar)ch;
-(BOOL) isAlphaDigit:(unichar)ch;
-(BOOL) isExponentMarker:(unichar)ch;
-(BOOL) isNumberMarker:(unichar)ch;
-(BOOL) isRatioMarker:(unichar)ch;
-(BOOL) isDecimalPoint:(unichar)ch;
-(BOOL) isMinusSign:(unichar)ch;
-(BOOL) isPlusSign:(unichar)ch;
-(BOOL) isSign:(unichar)ch;
-(BOOL) isDot:(unichar)ch;
// Read-base-dependent digit properties.
-(BOOL) isDecimalDigit:(unichar)ch;
-(BOOL) isDigit:(unichar)ch inBase:(int)base;
-(int) digitWeight:(unichar)ch;
-(MLKFuncallable *) macroFunctionForCharacter:(unichar)ch;
-(void) setMacroFunction:(MLKFuncallable *)function forCharacter:(unichar)ch;
-(unichar) charWithReadtableCase:(unichar)ch;
-(int) characterConstituentTraits:(unichar)ch;
-(BOOL) character:(unichar)ch
hasTrait:(enum MLKConstituentTrait)trait;
-(enum MLKSyntaxType) characterSyntaxType:(unichar)ch;
-(void) setSyntaxType:(enum MLKSyntaxType)type
forCharacter:(unichar)ch;
-(void) setConstituentTrait:(enum MLKConstituentTrait)trait
forCharacter:(unichar)ch;
-(void) unsetConstituentTrait:(enum MLKConstituentTrait)trait
forCharacter:(unichar)ch;
@end
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