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/*
* syck.h
*
* $Author$
* $Date$
*
* Copyright (C) 2003 why the lucky stiff
*/
#ifndef SYCK_H
#define SYCK_H
#define SYCK_VERSION "0.32"
#define YAML_DOMAIN "yaml.org,2002"
#include <stdio.h>
#include "st.h"
#if defined(__cplusplus)
extern "C" {
#endif
/*
* Memory Allocation
*/
#if defined(HAVE_ALLOCA_H) && !defined(__GNUC__)
#include <alloca.h>
#endif
#if DEBUG
void syck_assert( char *, unsigned );
# define ASSERT(f) \
if ( f ) \
{} \
else \
syck_assert( __FILE__, __LINE__ )
#else
# define ASSERT(f)
#endif
#ifndef NULL
# define NULL (void *)0
#endif
#define ALLOC_CT 8
#define S_ALLOC_N(type,n) (type*)malloc(sizeof(type)*(n))
#define S_ALLOC(type) (type*)malloc(sizeof(type))
#define S_REALLOC_N(var,type,n) (var)=(type*)realloc((char*)(var),sizeof(type)*(n))
#define S_FREE(n) free(n); n = NULL;
#define S_ALLOCA_N(type,n) (type*)alloca(sizeof(type)*(n))
#define S_MEMZERO(p,type,n) memset((p), 0, sizeof(type)*(n))
#define S_MEMCPY(p1,p2,type,n) memcpy((p1), (p2), sizeof(type)*(n))
#define S_MEMMOVE(p1,p2,type,n) memmove((p1), (p2), sizeof(type)*(n))
#define S_MEMCMP(p1,p2,type,n) memcmp((p1), (p2), sizeof(type)*(n))
#define BLOCK_FOLD 10
#define BLOCK_LIT 20
#define BLOCK_PLAIN 30
#define NL_CHOMP 130
#define NL_KEEP 140
/*
* Node definitions
*/
#define SYMID unsigned long
typedef struct _syck_parser SyckParser;
typedef struct _syck_file SyckIoFile;
typedef struct _syck_str SyckIoStr;
typedef struct _syck_node SyckNode;
typedef struct _syck_level SyckLevel;
enum syck_kind_tag {
syck_map_kind,
syck_seq_kind,
syck_str_kind
};
enum map_part {
map_key,
map_value
};
struct _syck_node {
// Symbol table ID
SYMID id;
// Underlying kind
enum syck_kind_tag kind;
// Fully qualified tag-uri for type
char *type_id;
// Anchor name
char *anchor;
union {
// Storage for map data
struct SyckMap {
SYMID *keys;
SYMID *values;
long capa;
long idx;
} *pairs;
// Storage for sequence data
struct SyckSeq {
SYMID *items;
long capa;
long idx;
} *list;
// Storage for string data
struct SyckStr {
char *ptr;
long len;
} *str;
} data;
// Shortcut node
void *shortcut;
};
/*
* Parser definitions
*/
typedef SYMID (*SyckNodeHandler)(SyckParser *, SyckNode *);
typedef void (*SyckErrorHandler)(SyckParser *, char *);
typedef long (*SyckIoFileRead)(char *, SyckIoFile *, long, long);
typedef long (*SyckIoStrRead)(char *, SyckIoStr *, long, long);
enum syck_io_type {
syck_io_str,
syck_io_file
};
enum syck_level_status {
syck_lvl_header,
syck_lvl_doc,
syck_lvl_seq,
syck_lvl_map,
syck_lvl_block,
syck_lvl_str,
syck_lvl_inline,
syck_lvl_end,
syck_lvl_pause
};
struct _syck_parser {
// Root node
SYMID root, root_on_error;
// Implicit typing flag
int implicit_typing, taguri_expansion;
// Scripting language function to handle nodes
SyckNodeHandler handler;
// Error handler
SyckErrorHandler error_handler;
// IO type
enum syck_io_type io_type;
// Custom buffer size
size_t bufsize;
// Buffer pointers
char *buffer, *linectptr, *lineptr, *toktmp, *token, *cursor, *marker, *limit;
// Line counter
int linect;
// Last token from yylex()
int last_token;
// Force a token upon next call to yylex()
int force_token;
// EOF flag
int eof;
union {
struct _syck_file {
FILE *ptr;
SyckIoFileRead read;
} *file;
struct _syck_str {
char *beg, *ptr, *end;
SyckIoStrRead read;
} *str;
} io;
// Symbol table
st_table *anchors;
// Optional symbol table for SYMIDs
st_table *syms;
// Levels of indentation
struct _syck_level {
int spaces;
char *domain;
enum syck_level_status status;
} *levels;
int lvl_idx;
int lvl_capa;
void *bonus;
};
/*
* Handler prototypes
*/
SYMID syck_hdlr_add_node( SyckParser *, SyckNode * );
SyckNode *syck_hdlr_add_anchor( SyckParser *, char *, SyckNode * );
SyckNode *syck_hdlr_add_alias( SyckParser *, char * );
void syck_add_transfer( char *, SyckNode *, int );
char *syck_xprivate( char *, int );
char *syck_taguri( char *, char *, int );
int syck_add_sym( SyckParser *, char * );
int syck_lookup_sym( SyckParser *, SYMID, char ** );
int syck_try_implicit( SyckNode * );
char *syck_type_id_to_uri( char * );
void try_tag_implicit( SyckNode *, int );
char *syck_match_implicit( char *, size_t );
/*
* API prototypes
*/
char *syck_strndup( char *, long );
long syck_io_file_read( char *, SyckIoFile *, long, long );
long syck_io_str_read( char *, SyckIoStr *, long, long );
SyckParser *syck_new_parser();
void syck_free_parser( SyckParser * );
void syck_parser_set_root_on_error( SyckParser *, SYMID );
void syck_parser_implicit_typing( SyckParser *, int );
void syck_parser_taguri_expansion( SyckParser *, int );
void syck_parser_handler( SyckParser *, SyckNodeHandler );
void syck_parser_error_handler( SyckParser *, SyckErrorHandler );
void syck_parser_file( SyckParser *, FILE *, SyckIoFileRead );
void syck_parser_str( SyckParser *, char *, long, SyckIoStrRead );
void syck_parser_str_auto( SyckParser *, char *, SyckIoStrRead );
SyckLevel *syck_parser_current_level( SyckParser * );
void syck_parser_add_level( SyckParser *, int, enum syck_level_status );
void syck_parser_pop_level( SyckParser * );
void free_any_io( SyckParser * );
long syck_parser_read( SyckParser * );
long syck_parser_readlen( SyckParser *, long );
void syck_parser_init( SyckParser *, int );
SYMID syck_parse( SyckParser * );
void syck_default_error_handler( SyckParser *, char * );
/*
* Allocation prototypes
*/
SyckNode *syck_alloc_map();
SyckNode *syck_alloc_seq();
SyckNode *syck_alloc_str();
void syck_free_node( SyckNode * );
void syck_free_members( SyckNode * );
SyckNode *syck_new_str( char * );
SyckNode *syck_new_str2( char *, long );
void syck_str_blow_away_commas( SyckNode * );
char *syck_str_read( SyckNode * );
SyckNode *syck_new_map( SYMID, SYMID );
void syck_map_add( SyckNode *, SYMID, SYMID );
SYMID syck_map_read( SyckNode *, enum map_part, long );
void syck_map_assign( SyckNode *, enum map_part, long, SYMID );
long syck_map_count( SyckNode * );
void syck_map_update( SyckNode *, SyckNode * );
SyckNode *syck_new_seq( SYMID );
void syck_seq_add( SyckNode *, SYMID );
SYMID syck_seq_read( SyckNode *, long );
long syck_seq_count( SyckNode * );
void apply_seq_in_map( SyckParser *, SyckNode * );
#ifndef ST_DATA_T_DEFINED
typedef long st_data_t;
#endif
#if defined(__cplusplus)
} /* extern "C" { */
#endif
#endif /* ifndef SYCK_H */
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