| /* -*- Mode: C; indent-tabs-mode:nil; c-basic-offset: 8-*- */ |
| |
| /* libcroco - Library for parsing and applying CSS |
| * Copyright (C) 2006-2019 Free Software Foundation, Inc. |
| * |
| * This file is not part of the GNU gettext program, but is used with |
| * GNU gettext. |
| * |
| * The original copyright notice is as follows: |
| */ |
| |
| /* |
| * This file is part of The Croco Library |
| * |
| * Copyright (C) 2003-2004 Dodji Seketeli. All Rights Reserved. |
| * |
| * 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 |
| */ |
| |
| #include <stdio.h> |
| #include <glib.h> |
| #include "cr-utils.h" |
| #include "cr-rgb.h" |
| #include "cr-num.h" |
| #include "cr-string.h" |
| |
| #ifndef __CR_TERM_H__ |
| #define __CR_TERM_H__ |
| |
| G_BEGIN_DECLS |
| |
| /** |
| *@file |
| *Declaration of the #CRTem class. |
| */ |
| |
| enum CRTermType |
| { |
| TERM_NO_TYPE = 0, |
| TERM_NUMBER, |
| TERM_FUNCTION, |
| TERM_STRING, |
| TERM_IDENT, |
| TERM_URI, |
| TERM_RGB, |
| TERM_UNICODERANGE, |
| TERM_HASH |
| } ; |
| |
| |
| enum UnaryOperator |
| { |
| NO_UNARY_UOP = 0, |
| PLUS_UOP, |
| MINUS_UOP, |
| EMPTY_UNARY_UOP |
| } ; |
| |
| enum Operator |
| { |
| NO_OP = 0, |
| DIVIDE, |
| COMMA |
| } ; |
| |
| struct _CRTerm ; |
| typedef struct _CRTerm CRTerm ; |
| |
| /** |
| *An abstraction of a css2 term as |
| *defined in the CSS2 spec in appendix D.1: |
| *term ::= |
| *[ NUMBER S* | PERCENTAGE S* | LENGTH S* | EMS S* | EXS S* |
| *| ANGLE S* | TIME S* | FREQ S* | function ] |
| * | STRING S* | IDENT S* | URI S* | RGB S* |
| *| UNICODERANGE S* | hexcolor |
| */ |
| struct _CRTerm |
| { |
| /** |
| *The type of the term. |
| */ |
| enum CRTermType type ; |
| |
| /** |
| *The unary operator associated to |
| *the current term. |
| */ |
| enum UnaryOperator unary_op ; |
| |
| /** |
| *The operator associated to the current term. |
| */ |
| enum Operator the_operator ; |
| |
| |
| /** |
| *The content of the term. |
| *Depending of the type of the term, |
| *this holds either a number, a percentage ... |
| */ |
| union |
| { |
| CRNum *num ; |
| CRString * str ; |
| CRRgb * rgb ; |
| } content ; |
| |
| /** |
| *If the term is of type UNICODERANGE, |
| *this field holds the upper bound of the range. |
| *if the term is of type FUNCTION, this holds |
| *an instance of CRTerm that represents |
| * the expression which is the argument of the function. |
| */ |
| union |
| { |
| CRTerm *func_param ; |
| } ext_content ; |
| |
| /** |
| *A spare pointer, just in case. |
| *Can be used by the application. |
| */ |
| gpointer app_data ; |
| |
| glong ref_count ; |
| |
| /** |
| *A pointer to the next term, |
| *just in case this term is part of |
| *an expression. |
| */ |
| CRTerm *next ; |
| |
| /** |
| *A pointer to the previous |
| *term. |
| */ |
| CRTerm *prev ; |
| CRParsingLocation location ; |
| } ; |
| |
| CRTerm * cr_term_parse_expression_from_buf (const guchar *a_buf, |
| enum CREncoding a_encoding) ; |
| CRTerm * cr_term_new (void) ; |
| |
| enum CRStatus cr_term_set_number (CRTerm *a_this, CRNum *a_num) ; |
| |
| enum CRStatus cr_term_set_function (CRTerm *a_this, |
| CRString *a_func_name, |
| CRTerm *a_func_param) ; |
| |
| enum CRStatus cr_term_set_string (CRTerm *a_this, CRString *a_str) ; |
| |
| enum CRStatus cr_term_set_ident (CRTerm *a_this, CRString *a_str) ; |
| |
| enum CRStatus cr_term_set_uri (CRTerm *a_this, CRString *a_str) ; |
| |
| enum CRStatus cr_term_set_rgb (CRTerm *a_this, CRRgb *a_rgb) ; |
| |
| enum CRStatus cr_term_set_hash (CRTerm *a_this, CRString *a_str) ; |
| |
| CRTerm * cr_term_append_term (CRTerm *a_this, CRTerm *a_new_term) ; |
| |
| CRTerm * cr_term_prepend_term (CRTerm *a_this, CRTerm *a_new_term) ; |
| |
| guchar * cr_term_to_string (CRTerm const *a_this) ; |
| |
| guchar * cr_term_one_to_string (CRTerm const * a_this) ; |
| |
| void cr_term_dump (CRTerm const *a_this, FILE *a_fp) ; |
| |
| int cr_term_nr_values (CRTerm const *a_this) ; |
| |
| CRTerm * cr_term_get_from_list (CRTerm *a_this, int itemnr) ; |
| |
| void cr_term_ref (CRTerm *a_this) ; |
| |
| gboolean cr_term_unref (CRTerm *a_this) ; |
| |
| void cr_term_destroy (CRTerm * a_term) ; |
| |
| G_END_DECLS |
| |
| #endif /*__CR_TERM_H__*/ |