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-rw-r--r--src/cr-token.c674
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diff --git a/src/cr-token.c b/src/cr-token.c
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+/* -*- Mode: C; indent-tabs-mode:nil; c-basic-offset: 8-*- */
+
+/*
+ * This file is part of The Croco Library
+ *
+ * Copyright (C) 2002-2003 Dodji Seketeli <dodji@seketeli.org>
+ *
+ * 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
+ */
+
+/*
+ *$Id$
+ */
+
+/**
+ *@file
+ *The definition of the #CRToken class.
+ *Abstracts a css2 token.
+ */
+#include <string.h>
+#include "cr-token.h"
+
+
+/**
+ *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 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:
+ break ;
+
+ case STRING_TK:
+ case IDENT_TK:
+ case HASH_TK:
+ case URI_TK:
+ case FUNCTION_TK:
+ case COMMENT_TK:
+ if (a_this->u.str)
+ {
+ g_string_free (a_this->u.str, TRUE) ;
+ 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:
+ 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)
+ {
+ g_string_free (a_this->dimen, TRUE) ;
+ a_this->dimen = NULL ;
+ }
+
+ break ;
+
+ case UNICODERANGE_TK:
+ /*not supported yet.*/
+ break ;
+
+ default:
+ 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, GString *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, GString *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, GString * 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, GString *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, GString *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, GString *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,
+ GString *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, GString *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) ;
+}
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