Adding upstream version 1.2.2.upstream/1.2.2upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 333 insertions, 0 deletions

diff --git a/src/3rdparty/libcroco/cr-selector.c b/src/3rdparty/libcroco/cr-selector.c
new file mode 100644
index 0000000..496b02c
--- /dev/null
+++ b/src/3rdparty/libcroco/cr-selector.c
@@ -0,0 +1,333 @@
+/* -*- 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
+ *
+ * See COPYRIGHTS file for copyright information.
+ */
+
+#include <string.h>
+#include "cr-selector.h"
+#include "cr-parser.h"
+
+/**
+ * cr_selector_new:
+ *
+ *@a_simple_sel: the initial simple selector list
+ *of the current instance of #CRSelector.
+ *
+ *Creates a new instance of #CRSelector.
+ *
+ *Returns the newly built instance of #CRSelector, or
+ *NULL in case of failure.
+ */
+CRSelector *
+cr_selector_new (CRSimpleSel * a_simple_sel)
+{
+        CRSelector *result = NULL;
+
+        result = (CRSelector *) g_try_malloc (sizeof (CRSelector));
+
+        if (!result) {
+                cr_utils_trace_info ("Out of memory");
+                return NULL;
+        }
+        memset (result, 0, sizeof (CRSelector));
+        result->simple_sel = a_simple_sel;
+        return result;
+}
+
+/**
+ * cr_selector_parse_from_buf:
+ *
+ *@a_char_buf: the buffer to parse.
+ *@a_enc: the encoding of the input buffer a_char_buf.
+ *
+ *Parses a buf for selectors. 
+ *
+ *Fix Me: parsing will fail for some cases if buf does not end with '{'.
+ *
+ *Returns the newly built instance of #CRSelector, or
+ *NULL in case of failure.
+ */
+CRSelector *
+cr_selector_parse_from_buf (const guchar * a_char_buf, enum CREncoding a_enc)
+{
+        CRParser *parser = NULL;
+        CRSelector *selector = NULL;
+        enum CRStatus status;
+
+        g_return_val_if_fail (a_char_buf, NULL);
+
+        parser = cr_parser_new_from_buf ((guchar*)a_char_buf, strlen ((const char *) a_char_buf),
+                                         a_enc, FALSE);
+        g_return_val_if_fail (parser, NULL);
+
+        status = cr_parser_parse_selector (parser, &selector);
+
+        if (status != CR_OK) {
+                if (selector) {
+                        cr_selector_unref (selector);
+                        selector = NULL;
+                }
+        }
+
+        cr_parser_destroy(parser);
+
+        return selector;
+}
+
+/**
+ * cr_selector_append:
+ *
+ *@a_this: the current instance of #CRSelector.
+ *@a_new: the instance of #CRSelector to be appended.
+ *
+ *Appends a new instance of #CRSelector to the current selector list.
+ *
+ *Returns the new list.
+ */
+CRSelector *
+cr_selector_append (CRSelector * a_this, CRSelector * a_new)
+{
+        CRSelector *cur = NULL;
+
+        if (!a_this) {
+                return a_new;
+        }
+
+        /*walk forward the list headed by a_this to get the list tail */
+        for (cur = a_this; cur && cur->next; cur = cur->next) ;
+
+        cur->next = a_new;
+        a_new->prev = cur;
+
+        return a_this;
+}
+
+/**
+ * cr_selector_prepend:
+ *
+ *@a_this: the current instance of #CRSelector list.
+ *@a_new: the instance of #CRSelector.
+ *
+ *Prepends an element to the #CRSelector list.
+ * 
+ *Returns the new list.
+ */
+CRSelector *
+cr_selector_prepend (CRSelector * a_this, CRSelector * a_new)
+{
+        CRSelector *cur = NULL;
+
+        a_new->next = a_this;
+        a_this->prev = a_new;
+
+        for (cur = a_new; cur && cur->prev; cur = cur->prev) ;
+
+        return cur;
+}
+
+/**
+ * cr_selector_append_simple_sel:
+ *
+ *@a_this: the current instance of #CRSelector.
+ *@a_simple_sel: the simple selector to append.
+ *
+ *append a simple selector to the current #CRSelector list.
+ *
+ *Returns the new list or NULL in case of failure.
+ */
+CRSelector *
+cr_selector_append_simple_sel (CRSelector * a_this,
+                               CRSimpleSel * a_simple_sel)
+{
+        CRSelector *selector = NULL;
+
+        selector = cr_selector_new (a_simple_sel);
+        g_return_val_if_fail (selector, NULL);
+
+        return cr_selector_append (a_this, selector);
+}
+
+guchar *
+cr_selector_to_string (CRSelector const * a_this)
+{
+        guchar *result = NULL;
+        GString *str_buf = NULL;
+
+        str_buf = (GString *) g_string_new (NULL);
+        g_return_val_if_fail (str_buf, NULL);
+
+        if (a_this) {
+                CRSelector const *cur = NULL;
+
+                for (cur = a_this; cur; cur = cur->next) {
+                        if (cur->simple_sel) {
+                                guchar *tmp_str = NULL;
+
+                                tmp_str = cr_simple_sel_to_string
+                                        (cur->simple_sel);
+
+                                if (tmp_str) {
+                                        if (cur->prev)
+                                                g_string_append (str_buf, 
+								 ", ");
+
+                                        g_string_append (str_buf, (const gchar *) tmp_str);
+
+                                        g_free (tmp_str);
+                                        tmp_str = NULL;
+                                }
+                        }
+                }
+        }
+
+        if (str_buf) {
+                result = (guchar *) str_buf->str;
+                g_string_free (str_buf, FALSE);
+                str_buf = NULL;
+        }
+
+        return result;
+}
+
+/**
+ * cr_selector_dump:
+ *
+ *@a_this: the current instance of #CRSelector.
+ *@a_fp: the destination file.
+ *
+ *Serializes the current instance of #CRSelector to a file.
+ */
+void
+cr_selector_dump (CRSelector const * a_this, FILE * a_fp)
+{
+        guchar *tmp_buf = NULL;
+
+        if (a_this) {
+                tmp_buf = cr_selector_to_string (a_this);
+                if (tmp_buf) {
+                        fprintf (a_fp, "%s", tmp_buf);
+                        g_free (tmp_buf);
+                        tmp_buf = NULL;
+                }
+        }
+}
+
+/**
+ * cr_selector_ref:
+ *
+ *@a_this: the current instance of #CRSelector.
+ *
+ *Increments the ref count of the current instance
+ *of #CRSelector.
+ */
+void
+cr_selector_ref (CRSelector * a_this)
+{
+        g_return_if_fail (a_this);
+
+        a_this->ref_count++;
+}
+
+/**
+ * cr_selector_unref:
+ *
+ *@a_this: the current instance of #CRSelector.
+ *
+ *Decrements the ref count of the current instance of
+ *#CRSelector.
+ *If the ref count reaches zero, the current instance of
+ *#CRSelector is destroyed.
+ *
+ *Returns TRUE if this function destroyed the current instance
+ *of #CRSelector, FALSE otherwise.
+ */
+gboolean
+cr_selector_unref (CRSelector * a_this)
+{
+        g_return_val_if_fail (a_this, FALSE);
+
+        if (a_this->ref_count) {
+                a_this->ref_count--;
+        }
+
+        if (a_this->ref_count == 0) {
+                cr_selector_destroy (a_this);
+                return TRUE;
+        }
+
+        return FALSE;
+}
+
+/**
+ * cr_selector_destroy:
+ *
+ *@a_this: the current instance of #CRSelector.
+ *
+ *Destroys the selector list.
+ */
+void
+cr_selector_destroy (CRSelector * a_this)
+{
+        CRSelector *cur = NULL;
+
+        g_return_if_fail (a_this);
+
+        /*
+         *go and get the list tail. In the same time, free
+         *all the simple selectors contained in the list.
+         */
+        for (cur = a_this; cur && cur->next; cur = cur->next) {
+                if (cur->simple_sel) {
+                        cr_simple_sel_destroy (cur->simple_sel);
+                        cur->simple_sel = NULL;
+                }
+        }
+
+        if (cur) {
+                if (cur->simple_sel) {
+                        cr_simple_sel_destroy (cur->simple_sel);
+                        cur->simple_sel = NULL;
+                }
+        }
+
+        /*in case the list has only one element */
+        if (cur && !cur->prev) {
+                g_free (cur);
+                return;
+        }
+
+        /*walk backward the list and free each "next element" */
+        for (cur = cur->prev; cur && cur->prev; cur = cur->prev) {
+                if (cur->next) {
+                        g_free (cur->next);
+                        cur->next = NULL;
+                }
+        }
+
+        if (!cur)
+                return;
+
+        if (cur->next) {
+                g_free (cur->next);
+                cur->next = NULL;
+        }
+
+        g_free (cur);
+}