StringReader.h

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/*
 * Objectively: Ultra-lightweight object oriented framework for GNU C.
 * Copyright (C) 2014 Jay Dolan <jay@jaydolan.com>
 *
 * This software is provided 'as-is', without any express or implied
 * warranty. In no event will the authors be held liable for any damages
 * arising from the use of this software.
 *
 * Permission is granted to anyone to use this software for any purpose,
 * including commercial applications, and to alter it and redistribute it
 * freely, subject to the following restrictions:
 *
 * 1. The origin of this software must not be misrepresented; you must not
 * claim that you wrote the original software. If you use this software
 * in a product, an acknowledgment in the product documentation would be
 * appreciated but is not required.
 *
 * 2. Altered source versions must be plainly marked as such, and must not be
 * misrepresented as being the original software.
 *
 * 3. This notice may not be removed or altered from any source distribution.
 */
 
#pragma once
 
#include <Objectively/String.h>
 
typedef enum {
    StringReaderPeek,
    StringReaderRead
} StringReaderMode;
 
#define READER_EOF ((Unicode) -1)
 
typedef struct StringReader StringReader;
typedef struct StringReaderInterface StringReaderInterface;
 
struct StringReader {
 
    Object object;
 
    StringReaderInterface *interface;
 
    char *head;
 
    String *string;
};
 
struct StringReaderInterface {
 
    ObjectInterface objectInterface;
 
    StringReader *(*initWithCharacters)(StringReader *self, const char *chars);
 
    StringReader *(*initWithString)(StringReader *self, String *string);
 
    Unicode (*next)(StringReader *self, StringReaderMode mode);
 
    Unicode (*peek)(StringReader *self);
 
    Unicode (*read)(StringReader *self);
 
    String *(*readToken)(StringReader *self, const Unicode *charset, Unicode *stop);
 
    void (*reset)(StringReader *self);
};
 
OBJECTIVELY_EXPORT Class *_StringReader(void);