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-rw-r--r--src/st/croco/cr-token.c636
1 files changed, 636 insertions, 0 deletions
diff --git a/src/st/croco/cr-token.c b/src/st/croco/cr-token.c
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+++ b/src/st/croco/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
+ *
+ * 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.
+ */
+
+/**
+ *@file
+ *The definition of the #CRToken class.
+ *Abstracts a css2 token.
+ */
+#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 successful 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 successful 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 successful 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 successful 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 successful 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);
+}
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