261 lines
6.6 KiB
C
261 lines
6.6 KiB
C
/*
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* syck.h
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*
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* $Author$
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* $Date$
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*
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* Copyright (C) 2003 why the lucky stiff
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*/
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#ifndef SYCK_H
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#define SYCK_H
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#define SYCK_VERSION "0.28"
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#define YAML_DOMAIN "yaml.org,2002"
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#include <stdio.h>
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#include "../../st.h"
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#if defined(__cplusplus)
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extern "C" {
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#endif
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/*
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* Memory Allocation
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*/
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#if defined(HAVE_ALLOCA_H) && !defined(__GNUC__)
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#include <alloca.h>
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#endif
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#if DEBUG
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void syck_assert( char *, unsigned );
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# define ASSERT(f) \
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if ( f ) \
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{} \
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else \
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syck_assert( __FILE__, __LINE__ )
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#else
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# define ASSERT(f)
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#endif
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#ifndef NULL
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# define NULL (void *)0
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#endif
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#define ALLOC_CT 8
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#define S_ALLOC_N(type,n) (type*)malloc(sizeof(type)*(n))
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#define S_ALLOC(type) (type*)malloc(sizeof(type))
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#define S_REALLOC_N(var,type,n) (var)=(type*)realloc((char*)(var),sizeof(type)*(n))
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#define S_FREE(n) free(n); n = NULL;
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#define S_ALLOCA_N(type,n) (type*)alloca(sizeof(type)*(n))
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#define S_MEMZERO(p,type,n) memset((p), 0, sizeof(type)*(n))
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#define S_MEMCPY(p1,p2,type,n) memcpy((p1), (p2), sizeof(type)*(n))
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#define S_MEMMOVE(p1,p2,type,n) memmove((p1), (p2), sizeof(type)*(n))
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#define S_MEMCMP(p1,p2,type,n) memcmp((p1), (p2), sizeof(type)*(n))
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#define BLOCK_FOLD 10
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#define BLOCK_LIT 20
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#define BLOCK_PLAIN 30
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#define NL_CHOMP 130
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#define NL_KEEP 140
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/*
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* Node definitions
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*/
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#define SYMID unsigned long
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typedef struct _syck_parser SyckParser;
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typedef struct _syck_file SyckIoFile;
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typedef struct _syck_str SyckIoStr;
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typedef struct _syck_node SyckNode;
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typedef struct _syck_level SyckLevel;
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enum syck_kind_tag {
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syck_map_kind,
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syck_seq_kind,
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syck_str_kind
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};
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enum map_part {
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map_key,
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map_value
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};
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struct _syck_node {
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// Symbol table ID
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SYMID id;
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// Underlying kind
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enum syck_kind_tag kind;
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// Fully qualified tag-uri for type
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char *type_id;
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// Anchor name
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char *anchor;
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union {
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// Storage for map data
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struct SyckMap {
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SYMID *keys;
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SYMID *values;
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long capa;
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long idx;
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} *pairs;
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// Storage for sequence data
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struct SyckSeq {
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SYMID *items;
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long capa;
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long idx;
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} *list;
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// Storage for string data
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struct SyckStr {
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char *ptr;
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long len;
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} *str;
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} data;
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void *shortcut;
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};
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/*
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* Parser definitions
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*/
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typedef SYMID (*SyckNodeHandler)(SyckParser *, SyckNode *);
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typedef void (*SyckErrorHandler)(SyckParser *, char *);
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typedef long (*SyckIoFileRead)(char *, SyckIoFile *, long, long);
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typedef long (*SyckIoStrRead)(char *, SyckIoStr *, long, long);
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enum syck_io_type {
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syck_io_str,
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syck_io_file
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};
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enum syck_level_status {
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syck_lvl_header,
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syck_lvl_doc,
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syck_lvl_seq,
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syck_lvl_map,
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syck_lvl_block,
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syck_lvl_str,
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syck_lvl_inline,
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syck_lvl_end,
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syck_lvl_pause
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};
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struct _syck_parser {
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// Root node
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SYMID root;
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// Implicit typing flag
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int implicit_typing, taguri_expansion;
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// Scripting language function to handle nodes
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SyckNodeHandler handler;
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// Error handler
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SyckErrorHandler error_handler;
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// IO type
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enum syck_io_type io_type;
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// Custom buffer size
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size_t bufsize;
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// Buffer pointers
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char *buffer, *lineptr, *toktmp, *token, *cursor, *marker, *limit;
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// Line counter
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int linect;
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// Last token from yylex()
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int last_token;
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// Force a token upon next call to yylex()
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int force_token;
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// EOF flag
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int eof;
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union {
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struct _syck_file {
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FILE *ptr;
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SyckIoFileRead read;
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} *file;
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struct _syck_str {
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char *beg, *ptr, *end;
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SyckIoStrRead read;
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} *str;
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} io;
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// Symbol table
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st_table *anchors;
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// Optional symbol table for SYMIDs
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st_table *syms;
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// Levels of indentation
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struct _syck_level {
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int spaces;
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char *domain;
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enum syck_level_status status;
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} *levels;
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int lvl_idx;
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int lvl_capa;
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void *bonus;
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};
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/*
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* Handler prototypes
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*/
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SYMID syck_hdlr_add_node( SyckParser *, SyckNode * );
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SyckNode *syck_hdlr_add_anchor( SyckParser *, char *, SyckNode * );
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SyckNode *syck_hdlr_add_alias( SyckParser *, char * );
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void syck_add_transfer( char *, SyckNode *, int );
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char *syck_xprivate( char *, int );
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char *syck_taguri( char *, char *, int );
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int syck_add_sym( SyckParser *, char * );
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int syck_lookup_sym( SyckParser *, SYMID, char ** );
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int syck_try_implicit( SyckNode * );
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char *syck_type_id_to_uri( char * );
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void syck_fold_format( struct SyckStr *, int, int, int );
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void try_tag_implicit( SyckNode *, int );
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char *syck_match_implicit( char *, size_t );
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/*
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* API prototypes
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*/
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char *syck_strndup( char *, long );
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long syck_io_file_read( char *, SyckIoFile *, long, long );
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long syck_io_str_read( char *, SyckIoStr *, long, long );
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SyckParser *syck_new_parser();
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void syck_free_parser( SyckParser * );
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void syck_parser_implicit_typing( SyckParser *, int );
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void syck_parser_taguri_expansion( SyckParser *, int );
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void syck_parser_handler( SyckParser *, SyckNodeHandler );
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void syck_parser_error_handler( SyckParser *, SyckErrorHandler );
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void syck_parser_file( SyckParser *, FILE *, SyckIoFileRead );
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void syck_parser_str( SyckParser *, char *, long, SyckIoStrRead );
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void syck_parser_str_auto( SyckParser *, char *, SyckIoStrRead );
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SyckLevel *syck_parser_current_level( SyckParser * );
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void syck_parser_add_level( SyckParser *, int, enum syck_level_status );
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void free_any_io( SyckParser * );
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long syck_parser_read( SyckParser * );
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long syck_parser_readlen( SyckParser *, long );
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void syck_parser_init( SyckParser *, int );
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SYMID syck_parse( SyckParser * );
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void syck_default_error_handler( SyckParser *, char * );
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/*
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* Allocation prototypes
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*/
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SyckNode *syck_alloc_map();
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SyckNode *syck_alloc_seq();
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SyckNode *syck_alloc_str();
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void syck_free_node( SyckNode * );
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void syck_free_members( SyckNode * );
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SyckNode *syck_new_str( char * );
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SyckNode *syck_new_str2( char *, long );
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void syck_str_blow_away_commas( SyckNode * );
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char *syck_str_read( SyckNode * );
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SyckNode *syck_new_map( SYMID, SYMID );
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void syck_map_add( SyckNode *, SYMID, SYMID );
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SYMID syck_map_read( SyckNode *, enum map_part, long );
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long syck_map_count( SyckNode * );
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void syck_map_assign( SyckNode *, enum map_part, long, SYMID );
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void syck_map_update( SyckNode *, SyckNode * );
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SyckNode *syck_new_seq( SYMID );
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void syck_seq_add( SyckNode *, SYMID );
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SYMID syck_seq_read( SyckNode *, long );
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long syck_seq_count( SyckNode * );
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void apply_seq_in_map( SyckParser *, SyckNode * );
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#if defined(__cplusplus)
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} /* extern "C" { */
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#endif
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#endif /* ifndef SYCK_H */
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