/* ox.h
 * Copyright (c) 2011, Peter Ohler
 * All rights reserved.
 */

#ifndef OX_H
#define OX_H

#if defined(__cplusplus)
extern "C" {
#if 0
} /* satisfy cc-mode */
#endif
#endif

#define RSTRING_NOT_MODIFIED

#include "ruby.h"
#if HAS_ENCODING_SUPPORT
#include "ruby/encoding.h"
#endif

#ifdef RUBINIUS_RUBY
#undef T_COMPLEX
enum st_retval {ST_CONTINUE = 0, ST_STOP = 1, ST_DELETE = 2, ST_CHECK};
#else
#if HAS_TOP_LEVEL_ST_H
/* Only on travis, local is where it is for all others. Seems to vary depending on the travis machine picked up. */
#include "st.h"
#else
#include "ruby/st.h"
#endif
#endif

#include "cache.h"

#include "err.h"
#include "type.h"
#include "attr.h"
#include "helper.h"

#define raise_error(msg, xml, current) _ox_raise_error(msg, xml, current, __FILE__, __LINE__)

#define MAX_TEXT_LEN	4096

#define SILENT		0
#define TRACE		1
#define DEBUG		2

#define XSD_DATE	0x0001
#define WITH_XML	0x0002
#define WITH_INST	0x0004
#define WITH_DTD	0x0008
#define CIRCULAR	0x0010

#define XSD_DATE_SET	0x0100
#define WITH_XML_SET	0x0200
#define WITH_INST_SET	0x0400
#define WITH_DTD_SET	0x0800
#define CIRCULAR_SET	0x1000

typedef enum {
    UseObj	= 1,
    UseAttr	= 2,
    UseAttrSet	= 3,
    UseArray	= 4,
    UseAMember	= 5,
    UseHash	= 6,
    UseHashKey	= 7,
    UseHashVal	= 8,
    UseRange	= 9,
    UseRangeAttr= 10,
    UseRaw	= 11,
} Use;

typedef enum {
    StrictEffort    = 's',
    TolerantEffort  = 't',
    AutoEffort	    = 'a',
    NoEffort	    = 0,
} Effort;

typedef enum {
    Yes	   = 'y',
    No	   = 'n',
    NotSet = 0
} YesNo;

typedef enum {
    ObjMode        = 'o',
    GenMode        = 'g',
    LimMode        = 'l',
    HashMode       = 'h',
    HashNoAttrMode = 'n',
    NoMode         = 0
} LoadMode;

typedef enum {
    OffSkip  = 'o',
    NoSkip   = 'n',
    CrSkip   = 'r',
    SpcSkip  = 's',
} SkipMode;

typedef struct _pInfo	*PInfo;

typedef struct _parseCallbacks {
    void	(*instruct)(PInfo pi, const char *target, Attr attrs, const char *content);
    void	(*add_doctype)(PInfo pi, const char *docType);
    void	(*add_comment)(PInfo pi, const char *comment);
    void	(*add_cdata)(PInfo pi, const char *cdata, size_t len);
    void	(*add_text)(PInfo pi, char *text, int closed);
    void	(*add_element)(PInfo pi, const char *ename, Attr attrs, int hasChildren);
    void	(*end_element)(PInfo pi, const char *ename);
    void	(*finish)(PInfo pi);
} *ParseCallbacks;

typedef struct _circArray {
    VALUE		obj_array[1024];
    VALUE		*objs;
    unsigned long	size; /* allocated size or initial array size */
    unsigned long	cnt;
} *CircArray;

typedef struct _options {
    char		encoding[64];	// encoding, stored in the option to avoid GC invalidation in default values
    char		margin[128];	// left margin for dumping
    int			indent;		// indention for dump, default 2
    int			trace;		// trace level
    char		margin_len;	// margin length
    char		with_dtd;	// YesNo
    char		with_xml;	// YesNo
    char		with_instruct;	// YesNo
    char		circular;	// YesNo
    char		xsd_date;	// YesNo
    char		mode;		// LoadMode
    char		effort;		// Effort
    char		sym_keys;	// symbolize keys
    char		skip;		// skip mode
    char		smart;		// YesNo sax smart mode
    char		convert_special;// boolean true or false
    char		allow_invalid;	// YesNo
    char		no_empty;	// boolean - no empty elements when dumping
    char		inv_repl[12];	// max 10 valid characters, first character is the length
    char		strip_ns[64];	// namespace to strip, \0 is no-strip, \* is all, else only matches
    struct _hints	*html_hints;	// html hints
    VALUE		attr_key_mod;
    VALUE		element_key_mod;
#if HAS_ENCODING_SUPPORT
    rb_encoding		*rb_enc;
#elif HAS_PRIVATE_ENCODING
    VALUE		rb_enc;
#else
    void		*rb_enc;
#endif
} *Options;

// parse information structure
struct _pInfo {
    struct _helperStack	helpers;
    struct _err		err;
    char		*str;		// buffer being read from
    char		*end;		// end of original string
    char		*s;		// current position in buffer
    VALUE		obj;
    ParseCallbacks	pcb;
    CircArray		circ_array;
    unsigned long	id;		// set for text types when cirs_array is set
    Options		options;
    VALUE		*marked;
    int			mark_size;	// allocated size
    int			mark_cnt;
    char		last;		// last character read, rarely set
};

extern VALUE	ox_parse(char *xml, size_t len, ParseCallbacks pcb, char **endp, Options options, Err err);
extern void	_ox_raise_error(const char *msg, const char *xml, const char *current, const char* file, int line);

extern void	ox_sax_define(void);

extern char*	ox_write_obj_to_str(VALUE obj, Options copts);
extern void	ox_write_obj_to_file(VALUE obj, const char *path, Options copts);

extern struct _options	ox_default_options;

extern VALUE	Ox;

extern ID	ox_abort_id;
extern ID	ox_at_column_id;
extern ID	ox_at_content_id;
extern ID	ox_at_id;
extern ID	ox_at_line_id;
extern ID	ox_at_pos_id;
extern ID	ox_at_value_id;
extern ID	ox_attr_id;
extern ID	ox_attr_value_id;
extern ID	ox_attrs_done_id;
extern ID	ox_attributes_id;
extern ID	ox_beg_id;
extern ID	ox_bigdecimal_id;
extern ID	ox_call_id;
extern ID	ox_cdata_id;
extern ID	ox_comment_id;
extern ID	ox_den_id;
extern ID	ox_doctype_id;
extern ID	ox_end_element_id;
extern ID	ox_end_id;
extern ID	ox_end_instruct_id;
extern ID	ox_error_id;
extern ID	ox_excl_id;
extern ID	ox_external_encoding_id;
extern ID	ox_fileno_id;
extern ID	ox_force_encoding_id;
extern ID	ox_inspect_id;
extern ID	ox_instruct_id;
extern ID	ox_jd_id;
extern ID	ox_keys_id;
extern ID	ox_local_id;
extern ID	ox_mesg_id;
extern ID	ox_message_id;
extern ID	ox_new_id;
extern ID	ox_nodes_id;
extern ID	ox_num_id;
extern ID	ox_parse_id;
extern ID	ox_pos_id;
extern ID	ox_read_id;
extern ID	ox_readpartial_id;
extern ID	ox_start_element_id;
extern ID	ox_string_id;
extern ID	ox_text_id;
extern ID	ox_to_c_id;
extern ID	ox_to_s_id;
extern ID	ox_to_sym_id;
extern ID	ox_tv_sec_id;
extern ID	ox_tv_nsec_id;
extern ID	ox_tv_usec_id;
extern ID	ox_value_id;

#if HAS_ENCODING_SUPPORT
extern rb_encoding	*ox_utf8_encoding;
#elif HAS_PRIVATE_ENCODING
extern VALUE		ox_utf8_encoding;
#else
extern void		*ox_utf8_encoding;
#endif

extern VALUE	ox_empty_string;
extern VALUE	ox_encoding_sym;
extern VALUE	ox_indent_sym;
extern VALUE	ox_size_sym;
extern VALUE	ox_standalone_sym;
extern VALUE	ox_sym_bank; // Array
extern VALUE	ox_version_sym;
extern VALUE	ox_zero_fixnum;

extern VALUE	ox_bigdecimal_class;
extern VALUE	ox_date_class;
extern VALUE	ox_stringio_class;
extern VALUE	ox_struct_class;
extern VALUE	ox_time_class;

extern VALUE	ox_document_clas;
extern VALUE	ox_element_clas;
extern VALUE	ox_instruct_clas;
extern VALUE	ox_bag_clas;
extern VALUE	ox_comment_clas;
extern VALUE	ox_raw_clas;
extern VALUE	ox_doctype_clas;
extern VALUE	ox_cdata_clas;

extern Cache	ox_symbol_cache;
extern Cache	ox_class_cache;
extern Cache	ox_attr_cache;

extern void	ox_init_builder(VALUE ox);

#if defined(__cplusplus)
#if 0
{ /* satisfy cc-mode */
#endif
}  /* extern "C" { */
#endif
#endif /* OX_H */