aboutsummaryrefslogtreecommitdiff
path: root/contrib/tsearch2/wordparser/parser.h
blob: ee5b3b7ab5471e6dc194647db98bcd3542977464 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
#ifndef __PARSER_H__
#define __PARSER_H__

#include <ctype.h>
#include <limits.h>
#include "ts_locale.h"

typedef enum {
	TPS_Base = 0,
	TPS_InUWord,
	TPS_InLatWord,
	TPS_InCyrWord,
	TPS_InUnsignedInt,
	TPS_InSignedIntFirst,
	TPS_InSignedInt,
	TPS_InSpace,
	TPS_InUDecimalFirst,
	TPS_InUDecimal,
	TPS_InDecimalFirst,
	TPS_InDecimal,
	TPS_InVersionFirst,
	TPS_InVersion,
	TPS_InMantissaFirst,
	TPS_InMantissaSign,
	TPS_InMantissa,
	TPS_InHTMLEntityFirst,
	TPS_InHTMLEntity,
	TPS_InHTMLEntityNumFirst,
	TPS_InHTMLEntityNum,
	TPS_InHTMLEntityEnd,
	TPS_InTagFirst,
	TPS_InTagCloseFirst,
	TPS_InTag,
	TPS_InTagEscapeK,
	TPS_InTagEscapeKK,
	TPS_InTagBackSleshed,
	TPS_InTagEnd,
	TPS_InCommentFirst,
	TPS_InCommentLast,
	TPS_InComment,
	TPS_InCloseCommentFirst,
	TPS_InCloseCommentLast,
	TPS_InCommentEnd,
	TPS_InHostFirstDomen,
	TPS_InHostDomenSecond,
	TPS_InHostDomen,
	TPS_InPortFirst,
	TPS_InPort,
	TPS_InHostFirstAN,
	TPS_InHost,
	TPS_InEmail,
	TPS_InFileFirst,
	TPS_InFile,
	TPS_InFileNext,
	TPS_InURIFirst,
	TPS_InURIStart,
	TPS_InURI,
	TPS_InFURL,
	TPS_InProtocolFirst,
	TPS_InProtocolSecond,
	TPS_InProtocolEnd,
	TPS_InHyphenLatWordFirst,
	TPS_InHyphenLatWord,
	TPS_InHyphenCyrWordFirst,
	TPS_InHyphenCyrWord,
	TPS_InHyphenUWordFirst,
	TPS_InHyphenUWord,
	TPS_InHyphenValueFirst,
	TPS_InHyphenValue,
	TPS_InHyphenValueExact,
	TPS_InParseHyphen,
	TPS_InParseHyphenHyphen,
	TPS_InHyphenCyrWordPart,
	TPS_InHyphenLatWordPart,
	TPS_InHyphenUWordPart,
	TPS_InHyphenUnsignedInt,
	TPS_InHDecimalPartFirst,
	TPS_InHDecimalPart,
	TPS_InHVersionPartFirst,
	TPS_InHVersionPart,
	TPS_Null  /* last state (fake value) */
} TParserState;

/* forward declaration */
struct TParser;


typedef int (*TParserCharTest)(struct TParser*);  /* any p_is* functions except p_iseq */
typedef void (*TParserSpecial)(struct TParser*);  /* special handler for special cases... */

typedef struct {
        TParserCharTest isclass;
        char            c;
        uint16          flags;
        TParserState    tostate;
        int             type;
        TParserSpecial  special;
} TParserStateActionItem;

typedef struct {
        TParserState            state;
        TParserStateActionItem  *action;
} TParserStateAction;

typedef struct TParserPosition {
	int		posbyte; /* position of parser in bytes */
	int		poschar; /* osition of parser in characters */
	int		charlen; /* length of current char */
	int 		lenbytelexeme;
	int 		lencharlexeme;
	TParserState	state;
	struct TParserPosition	*prev;
	int		flags;
	TParserStateActionItem	*pushedAtAction;
} TParserPosition;

typedef struct TParser {
	/* string and position information */
	char 		*str;  /* multibyte string */
	int		lenstr; /* length of mbstring */
	wchar_t		*wstr;  /* wide character string */ 
	int		lenwstr; /* length of wsting */

	/* State of parse */
	int		charmaxlen;
	bool		usewide;
	TParserPosition	*state;
	bool		ignore;
	bool		wanthost;

	/* silly char */
	char c;

	/* out */
	char	 	*lexeme;
	int 		lenbytelexeme;
	int 		lencharlexeme;
	int 		type;
	
} TParser;


TParser* TParserInit( char *, int );
bool	TParserGet( TParser* );
void	TParserClose( TParser* );

#endif