File: output.h

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/*
	pev - the PE file analyzer toolkit

	output.h - Symbols and APIs to be used to output data in multiple formats.

	Copyright (C) 2012 - 2014 pev authors

	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, see <http://www.gnu.org/licenses/>.

    In addition, as a special exception, the copyright holders give
    permission to link the code of portions of this program with the
    OpenSSL library under certain conditions as described in each
    individual source file, and distribute linked combinations
    including the two.
    
    You must obey the GNU General Public License in all respects
    for all of the code used other than OpenSSL.  If you modify
    file(s) with this exception, you may extend this exception to your
    version of the file(s), but you are not obligated to do so.  If you
    do not wish to do so, delete this exception statement from your
    version.  If you delete this exception statement from all source
    files in the program, then also delete it here.
*/

#pragma once

#ifdef __cplusplus
extern "C" {
#endif

#include <stddef.h>
#include <stdint.h>

typedef int format_id_t;

typedef enum {
	OUTPUT_TYPE_SCOPE_UNKNOWN	= 0,
	OUTPUT_TYPE_SCOPE_OPEN		= 1,
	OUTPUT_TYPE_SCOPE_CLOSE		= 2,
	OUTPUT_TYPE_ATTRIBUTE		= 3
} output_type_e;

typedef enum {
	OUTPUT_SCOPE_TYPE_UNKNOWN	= 0,
	OUTPUT_SCOPE_TYPE_DOCUMENT	= 1,
	OUTPUT_SCOPE_TYPE_OBJECT	= 2,
	OUTPUT_SCOPE_TYPE_ARRAY		= 3
} output_scope_type_e;

typedef struct {
	char *name;
	output_scope_type_e type;
	uint16_t depth;
	output_scope_type_e parent_type;
} output_scope_t;

struct _format_t; // Forward declaration

typedef void (*output_fn)(
	const struct _format_t *format,
	const output_type_e type,
	const output_scope_t *scope,
	const char *key,
	const char *value);

typedef char * (*escape_fn)(
	const struct _format_t *format,
	const char *str);

typedef char * const entity_t;
typedef char ** const entity_table_t;

typedef struct _format_t {
	const format_id_t id;
	const char *name;
	const output_fn output_fn;
	const escape_fn escape_fn;
	const entity_table_t entities_table;
} format_t;

void output_init(void); // IMPORTANT: Requires the text plugin to be already loaded.
void output_term(void);
const char *output_cmdline(void);
void output_set_cmdline(int argc, char *argv[]);
const format_t *output_format(void);
const format_t *output_parse_format(const char *format_name);
void output_set_format(const format_t *format);
int output_set_format_by_name(const char *format_name);
size_t output_available_formats(char *buffer, size_t size, char separator);
void output_open_document(void);
void output_open_document_with_name(const char *document_name);
void output_close_document(void);
void output_open_scope(const char *scope_name, output_scope_type_e type);
void output_close_scope(void);
void output(const char *key, const char *value);
void output_keyval(const char *key, const char *value);

#ifdef __cplusplus
} //extern "C"
#endif