| /* -*- 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 |
| */ |
| |
| /** |
| *@file |
| *The definition of the #CRToken class. |
| *Abstracts a css2 token. |
| */ |
| |
| #include <config.h> |
| #include <string.h> |
| #include "cr-token.h" |
| |
| /* |
| *TODO: write a CRToken::to_string() method. |
| */ |
| |
| /** |
| *Frees the attributes of the current instance |
| *of #CRtoken. |
| *@param a_this the current instance of #CRToken. |
| */ |
| static void |
| cr_token_clear (CRToken * a_this) |
| { |
| g_return_if_fail (a_this); |
| |
| switch (a_this->type) { |
| case S_TK: |
| case CDO_TK: |
| case CDC_TK: |
| case INCLUDES_TK: |
| case DASHMATCH_TK: |
| case PAGE_SYM_TK: |
| case MEDIA_SYM_TK: |
| case FONT_FACE_SYM_TK: |
| case CHARSET_SYM_TK: |
| case IMPORT_SYM_TK: |
| case IMPORTANT_SYM_TK: |
| case SEMICOLON_TK: |
| case NO_TK: |
| case DELIM_TK: |
| case CBO_TK: |
| case CBC_TK: |
| case BO_TK: |
| case BC_TK: |
| break; |
| |
| case STRING_TK: |
| case IDENT_TK: |
| case HASH_TK: |
| case URI_TK: |
| case FUNCTION_TK: |
| case COMMENT_TK: |
| case ATKEYWORD_TK: |
| if (a_this->u.str) { |
| cr_string_destroy (a_this->u.str); |
| a_this->u.str = NULL; |
| } |
| break; |
| |
| case EMS_TK: |
| case EXS_TK: |
| case LENGTH_TK: |
| case ANGLE_TK: |
| case TIME_TK: |
| case FREQ_TK: |
| case PERCENTAGE_TK: |
| case NUMBER_TK: |
| case PO_TK: |
| case PC_TK: |
| if (a_this->u.num) { |
| cr_num_destroy (a_this->u.num); |
| a_this->u.num = NULL; |
| } |
| break; |
| |
| case DIMEN_TK: |
| if (a_this->u.num) { |
| cr_num_destroy (a_this->u.num); |
| a_this->u.num = NULL; |
| } |
| |
| if (a_this->dimen) { |
| cr_string_destroy (a_this->dimen); |
| a_this->dimen = NULL; |
| } |
| |
| break; |
| |
| case RGB_TK: |
| if (a_this->u.rgb) { |
| cr_rgb_destroy (a_this->u.rgb) ; |
| a_this->u.rgb = NULL ; |
| } |
| break ; |
| |
| case UNICODERANGE_TK: |
| /*not supported yet. */ |
| break; |
| |
| default: |
| cr_utils_trace_info ("I don't know how to clear this token\n") ; |
| break; |
| } |
| |
| a_this->type = NO_TK; |
| } |
| |
| /** |
| *Default constructor of |
| *the #CRToken class. |
| *@return the newly built instance of #CRToken. |
| */ |
| CRToken * |
| cr_token_new (void) |
| { |
| CRToken *result = NULL; |
| |
| result = g_try_malloc (sizeof (CRToken)); |
| |
| if (result == NULL) { |
| cr_utils_trace_info ("Out of memory"); |
| return NULL; |
| } |
| |
| memset (result, 0, sizeof (CRToken)); |
| |
| return result; |
| } |
| |
| /** |
| *Sets the type of curren instance of |
| *#CRToken to 'S_TK' (S in the css2 spec) |
| *@param a_this the current instance of #CRToken. |
| *@return CR_OK upon successfull completion, an error |
| *code otherwise. |
| */ |
| enum CRStatus |
| cr_token_set_s (CRToken * a_this) |
| { |
| g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR); |
| |
| cr_token_clear (a_this); |
| |
| a_this->type = S_TK; |
| |
| return CR_OK; |
| } |
| |
| /** |
| *Sets the type of the current instance of |
| *#CRToken to 'CDO_TK' (CDO as said by the css2 spec) |
| *@param a_this the current instance of #CRToken. |
| *@return CR_OK upon successfull completion, an error |
| *code otherwise. |
| */ |
| enum CRStatus |
| cr_token_set_cdo (CRToken * a_this) |
| { |
| g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR); |
| |
| cr_token_clear (a_this); |
| |
| a_this->type = CDO_TK; |
| |
| return CR_OK; |
| } |
| |
| /** |
| *Sets the type of the current token to |
| *CDC_TK (CDC as said by the css2 spec). |
| *@param a_this the current instance of #CRToken. |
| *@return CR_OK upon successfull completion, an error |
| *code otherwise. |
| */ |
| enum CRStatus |
| cr_token_set_cdc (CRToken * a_this) |
| { |
| g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR); |
| |
| cr_token_clear (a_this); |
| |
| a_this->type = CDC_TK; |
| |
| return CR_OK; |
| } |
| |
| /** |
| *Sets the type of the current instance of |
| *#CRToken to INCLUDES_TK (INCLUDES as said by the css2 spec). |
| *@param a_this the current instance of #CRToken. |
| *@return CR_OK upon successfull completion, an error |
| *code otherwise. |
| */ |
| enum CRStatus |
| cr_token_set_includes (CRToken * a_this) |
| { |
| g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR); |
| |
| cr_token_clear (a_this); |
| |
| a_this->type = INCLUDES_TK; |
| |
| return CR_OK; |
| } |
| |
| /** |
| *Sets the type of the current instance of |
| *#CRToken to DASHMATCH_TK (DASHMATCH as said by the css2 spec). |
| *@param a_this the current instance of #CRToken. |
| *@return CR_OK upon successfull completion, an error |
| *code otherwise. |
| */ |
| enum CRStatus |
| cr_token_set_dashmatch (CRToken * a_this) |
| { |
| g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR); |
| |
| cr_token_clear (a_this); |
| |
| a_this->type = DASHMATCH_TK; |
| |
| return CR_OK; |
| } |
| |
| enum CRStatus |
| cr_token_set_comment (CRToken * a_this, CRString * a_str) |
| { |
| g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR); |
| |
| cr_token_clear (a_this); |
| a_this->type = COMMENT_TK; |
| a_this->u.str = a_str ; |
| return CR_OK; |
| } |
| |
| enum CRStatus |
| cr_token_set_string (CRToken * a_this, CRString * a_str) |
| { |
| g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR); |
| |
| cr_token_clear (a_this); |
| |
| a_this->type = STRING_TK; |
| |
| a_this->u.str = a_str ; |
| |
| return CR_OK; |
| } |
| |
| enum CRStatus |
| cr_token_set_ident (CRToken * a_this, CRString * a_ident) |
| { |
| g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR); |
| |
| cr_token_clear (a_this); |
| a_this->type = IDENT_TK; |
| a_this->u.str = a_ident; |
| return CR_OK; |
| } |
| |
| |
| enum CRStatus |
| cr_token_set_function (CRToken * a_this, CRString * a_fun_name) |
| { |
| g_return_val_if_fail (a_this, |
| CR_BAD_PARAM_ERROR); |
| |
| cr_token_clear (a_this); |
| a_this->type = FUNCTION_TK; |
| a_this->u.str = a_fun_name; |
| return CR_OK; |
| } |
| |
| enum CRStatus |
| cr_token_set_hash (CRToken * a_this, CRString * a_hash) |
| { |
| g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR); |
| |
| cr_token_clear (a_this); |
| a_this->type = HASH_TK; |
| a_this->u.str = a_hash; |
| |
| return CR_OK; |
| } |
| |
| enum CRStatus |
| cr_token_set_rgb (CRToken * a_this, CRRgb * a_rgb) |
| { |
| g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR); |
| |
| cr_token_clear (a_this); |
| a_this->type = RGB_TK; |
| a_this->u.rgb = a_rgb; |
| |
| return CR_OK; |
| } |
| |
| enum CRStatus |
| cr_token_set_import_sym (CRToken * a_this) |
| { |
| g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR); |
| |
| cr_token_clear (a_this); |
| |
| a_this->type = IMPORT_SYM_TK; |
| |
| return CR_OK; |
| } |
| |
| enum CRStatus |
| cr_token_set_page_sym (CRToken * a_this) |
| { |
| g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR); |
| |
| cr_token_clear (a_this); |
| |
| a_this->type = PAGE_SYM_TK; |
| |
| return CR_OK; |
| } |
| |
| enum CRStatus |
| cr_token_set_media_sym (CRToken * a_this) |
| { |
| g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR); |
| |
| cr_token_clear (a_this); |
| |
| a_this->type = MEDIA_SYM_TK; |
| |
| return CR_OK; |
| } |
| |
| enum CRStatus |
| cr_token_set_font_face_sym (CRToken * a_this) |
| { |
| g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR); |
| |
| cr_token_clear (a_this); |
| a_this->type = FONT_FACE_SYM_TK; |
| |
| return CR_OK; |
| } |
| |
| enum CRStatus |
| cr_token_set_charset_sym (CRToken * a_this) |
| { |
| g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR); |
| |
| cr_token_clear (a_this); |
| a_this->type = CHARSET_SYM_TK; |
| |
| return CR_OK; |
| } |
| |
| enum CRStatus |
| cr_token_set_atkeyword (CRToken * a_this, CRString * a_atname) |
| { |
| g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR); |
| |
| cr_token_clear (a_this); |
| a_this->type = ATKEYWORD_TK; |
| a_this->u.str = a_atname; |
| return CR_OK; |
| } |
| |
| enum CRStatus |
| cr_token_set_important_sym (CRToken * a_this) |
| { |
| g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR); |
| cr_token_clear (a_this); |
| a_this->type = IMPORTANT_SYM_TK; |
| return CR_OK; |
| } |
| |
| enum CRStatus |
| cr_token_set_ems (CRToken * a_this, CRNum * a_num) |
| { |
| g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR); |
| cr_token_clear (a_this); |
| a_this->type = EMS_TK; |
| a_this->u.num = a_num; |
| return CR_OK; |
| } |
| |
| enum CRStatus |
| cr_token_set_exs (CRToken * a_this, CRNum * a_num) |
| { |
| g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR); |
| cr_token_clear (a_this); |
| a_this->type = EXS_TK; |
| a_this->u.num = a_num; |
| return CR_OK; |
| } |
| |
| enum CRStatus |
| cr_token_set_length (CRToken * a_this, CRNum * a_num, |
| enum CRTokenExtraType a_et) |
| { |
| g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR); |
| |
| cr_token_clear (a_this); |
| |
| a_this->type = LENGTH_TK; |
| a_this->extra_type = a_et; |
| a_this->u.num = a_num; |
| |
| return CR_OK; |
| } |
| |
| enum CRStatus |
| cr_token_set_angle (CRToken * a_this, CRNum * a_num, |
| enum CRTokenExtraType a_et) |
| { |
| g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR); |
| |
| cr_token_clear (a_this); |
| |
| a_this->type = ANGLE_TK; |
| a_this->extra_type = a_et; |
| a_this->u.num = a_num; |
| |
| return CR_OK; |
| } |
| |
| enum CRStatus |
| cr_token_set_time (CRToken * a_this, CRNum * a_num, |
| enum CRTokenExtraType a_et) |
| { |
| g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR); |
| |
| cr_token_clear (a_this); |
| |
| a_this->type = TIME_TK; |
| a_this->extra_type = a_et; |
| a_this->u.num = a_num; |
| |
| return CR_OK; |
| } |
| |
| enum CRStatus |
| cr_token_set_freq (CRToken * a_this, CRNum * a_num, |
| enum CRTokenExtraType a_et) |
| { |
| g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR); |
| |
| cr_token_clear (a_this); |
| |
| a_this->type = FREQ_TK; |
| a_this->extra_type = a_et; |
| a_this->u.num = a_num; |
| |
| return CR_OK; |
| } |
| |
| enum CRStatus |
| cr_token_set_dimen (CRToken * a_this, CRNum * a_num, |
| CRString * a_dim) |
| { |
| g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR); |
| cr_token_clear (a_this); |
| a_this->type = DIMEN_TK; |
| a_this->u.num = a_num; |
| a_this->dimen = a_dim; |
| return CR_OK; |
| |
| } |
| |
| enum CRStatus |
| cr_token_set_percentage (CRToken * a_this, CRNum * a_num) |
| { |
| g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR); |
| |
| cr_token_clear (a_this); |
| |
| a_this->type = PERCENTAGE_TK; |
| a_this->u.num = a_num; |
| |
| return CR_OK; |
| } |
| |
| enum CRStatus |
| cr_token_set_number (CRToken * a_this, CRNum * a_num) |
| { |
| g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR); |
| |
| cr_token_clear (a_this); |
| |
| a_this->type = NUMBER_TK; |
| a_this->u.num = a_num; |
| return CR_OK; |
| } |
| |
| enum CRStatus |
| cr_token_set_uri (CRToken * a_this, CRString * a_uri) |
| { |
| g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR); |
| |
| cr_token_clear (a_this); |
| |
| a_this->type = URI_TK; |
| a_this->u.str = a_uri; |
| |
| return CR_OK; |
| } |
| |
| enum CRStatus |
| cr_token_set_delim (CRToken * a_this, guint32 a_char) |
| { |
| g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR); |
| |
| cr_token_clear (a_this); |
| |
| a_this->type = DELIM_TK; |
| a_this->u.unichar = a_char; |
| |
| return CR_OK; |
| } |
| |
| enum CRStatus |
| cr_token_set_semicolon (CRToken * a_this) |
| { |
| g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR); |
| |
| cr_token_clear (a_this); |
| |
| a_this->type = SEMICOLON_TK; |
| |
| return CR_OK; |
| } |
| |
| enum CRStatus |
| cr_token_set_cbo (CRToken * a_this) |
| { |
| g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR); |
| |
| cr_token_clear (a_this); |
| |
| a_this->type = CBO_TK; |
| |
| return CR_OK; |
| } |
| |
| enum CRStatus |
| cr_token_set_cbc (CRToken * a_this) |
| { |
| g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR); |
| |
| cr_token_clear (a_this); |
| |
| a_this->type = CBC_TK; |
| |
| return CR_OK; |
| } |
| |
| enum CRStatus |
| cr_token_set_po (CRToken * a_this) |
| { |
| g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR); |
| |
| cr_token_clear (a_this); |
| |
| a_this->type = PO_TK; |
| |
| return CR_OK; |
| } |
| |
| enum CRStatus |
| cr_token_set_pc (CRToken * a_this) |
| { |
| g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR); |
| |
| cr_token_clear (a_this); |
| |
| a_this->type = PC_TK; |
| |
| return CR_OK; |
| } |
| |
| enum CRStatus |
| cr_token_set_bo (CRToken * a_this) |
| { |
| g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR); |
| |
| cr_token_clear (a_this); |
| |
| a_this->type = BO_TK; |
| |
| return CR_OK; |
| } |
| |
| enum CRStatus |
| cr_token_set_bc (CRToken * a_this) |
| { |
| g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR); |
| |
| cr_token_clear (a_this); |
| |
| a_this->type = BC_TK; |
| |
| return CR_OK; |
| } |
| |
| /** |
| *The destructor of the #CRToken class. |
| *@param a_this the current instance of #CRToken. |
| */ |
| void |
| cr_token_destroy (CRToken * a_this) |
| { |
| g_return_if_fail (a_this); |
| |
| cr_token_clear (a_this); |
| |
| g_free (a_this); |
| } |