summaryrefslogtreecommitdiffstats
path: root/src/st/croco/cr-simple-sel.h
blob: 72b15fd1f25bf8dc7875b0d96095b520f6eed8d0 (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
/* -*- Mode: C; indent-tabs-mode:nil; c-basic-offset: 8-*- */

/*
 * This file is part of The Croco Library
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of version 2.1 of the GNU Lesser General Public
 * License as published by the Free Software Foundation.
 *
 * 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 Lesser General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
 * USA
 *
 * Author: Dodji Seketeli
 * See COPYRIGHTS file for copyright information.
 */


#ifndef __CR_SEL_H__
#define __CR_SEL_H__

#include <stdio.h>
#include <glib.h>
#include "cr-additional-sel.h"
#include "cr-parsing-location.h"

G_BEGIN_DECLS

/**
 *@file
 *the declaration of the #CRSimpleSel class.
 *
 */
enum Combinator
{
        NO_COMBINATOR,
        COMB_WS,/*whitespace: descendent*/
        COMB_PLUS,/*'+': preceded by*/
        COMB_GT/*greater than ('>'): child*/
} ;

enum SimpleSelectorType
{
        NO_SELECTOR_TYPE = 0,
        UNIVERSAL_SELECTOR = 1,
        TYPE_SELECTOR = 1 << 1
} ;

typedef struct _CRSimpleSel CRSimpleSel ;

/**
 *The abstraction of a css2 simple selection list
 *as defined by the right part of the "selector" production in the 
 *appendix D.1 of the css2 spec.
 *It is basically a list of simple selector, each
 *simple selector being separated by a combinator.
 *
 *In the libcroco's implementation, each simple selector 
 *is made of at most two parts:
 *
 *1/An element name or 'type selector' (which can hold a '*' and
 *then been called 'universal selector')
 *
 *2/An additional selector that "specializes" the preceding type or
 *universal selector. The additional selector can be either
 *an id selector, or a class selector, or an attribute selector.
 */
struct _CRSimpleSel
{
        enum SimpleSelectorType type_mask ;
        gboolean is_case_sentive ;
        CRString * name ;
        /**
         *The combinator that separates
         *this simple selector from the previous
         *one.
         */
        enum Combinator combinator ;

        /**
         *The additional selector list of the
         *current simple selector.
         *An additional selector may
         *be a class selector, an id selector,
         *or an attribute selector.
         *Note that this field is a linked list.
         */
        CRAdditionalSel *add_sel ;

        /*
         *the specificity as specified by
         *chapter 6.4.3 of the spec.
         */
        gulong specificity ;

        CRSimpleSel *next ;
        CRSimpleSel *prev ;
        CRParsingLocation location ;
} ;

CRSimpleSel * cr_simple_sel_new (void) ;

CRSimpleSel * cr_simple_sel_append_simple_sel (CRSimpleSel *a_this, 
                                               CRSimpleSel *a_sel) ;

CRSimpleSel * cr_simple_sel_prepend_simple_sel (CRSimpleSel *a_this, 
                                                CRSimpleSel *a_sel) ;

guchar * cr_simple_sel_to_string (CRSimpleSel const *a_this) ;

guchar * cr_simple_sel_one_to_string (CRSimpleSel const * a_this) ;

enum CRStatus cr_simple_sel_dump (CRSimpleSel const *a_this, FILE *a_fp) ;

enum CRStatus cr_simple_sel_dump_attr_sel_list (CRSimpleSel const *a_this) ;

enum CRStatus cr_simple_sel_compute_specificity (CRSimpleSel *a_this) ;

void cr_simple_sel_destroy (CRSimpleSel *a_this) ;

G_END_DECLS


#endif /*__CR_SIMPLE_SEL_H__*/