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-rw-r--r--e-util/e-xml-utils.c448
1 files changed, 448 insertions, 0 deletions
diff --git a/e-util/e-xml-utils.c b/e-util/e-xml-utils.c
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+++ b/e-util/e-xml-utils.c
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+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) version 3.
+ *
+ * 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with the program; if not, see <http://www.gnu.org/licenses/>
+ *
+ *
+ * Authors:
+ * Chris Lahey <clahey@ximian.com>
+ *
+ * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "e-xml-utils.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <locale.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <math.h>
+#include <string.h>
+
+#include <glib/gi18n.h>
+#include <glib/gstdio.h>
+#include <libxml/parser.h>
+#include <libxml/xmlmemory.h>
+
+#include "e-misc-utils.h"
+
+/* Returns the first child with the name child_name and the "lang"
+ * attribute that matches the current LC_MESSAGES, or else, the first
+ * child with the name child_name and no "lang" attribute.
+ */
+xmlNode *
+e_xml_get_child_by_name_by_lang (const xmlNode *parent,
+ const xmlChar *child_name,
+ const gchar *lang)
+{
+#ifdef G_OS_WIN32
+ gchar *freeme = NULL;
+#endif
+ xmlNode *child;
+ /* This is the default version of the string. */
+ xmlNode *C = NULL;
+
+ g_return_val_if_fail (parent != NULL, NULL);
+ g_return_val_if_fail (child_name != NULL, NULL);
+
+ if (lang == NULL) {
+#ifndef G_OS_WIN32
+#ifdef HAVE_LC_MESSAGES
+ lang = setlocale (LC_MESSAGES, NULL);
+#else
+ lang = setlocale (LC_CTYPE, NULL);
+#endif
+#else
+ lang = freeme = g_win32_getlocale ();
+#endif
+ }
+ for (child = parent->xmlChildrenNode; child != NULL; child = child->next) {
+ if (xmlStrcmp (child->name, child_name) == 0) {
+ xmlChar *this_lang = xmlGetProp (
+ child, (const guchar *)"lang");
+ if (this_lang == NULL) {
+ C = child;
+ } else if (xmlStrcmp (this_lang, (xmlChar *) lang) == 0) {
+#ifdef G_OS_WIN32
+ g_free (freeme);
+#endif
+ return child;
+ }
+ }
+ }
+#ifdef G_OS_WIN32
+ g_free (freeme);
+#endif
+ return C;
+}
+
+static xmlNode *
+e_xml_get_child_by_name_by_lang_list_with_score (const xmlNode *parent,
+ const gchar *name,
+ const GList *lang_list,
+ gint *best_lang_score)
+{
+ xmlNodePtr best_node = NULL, node;
+
+ for (node = parent->xmlChildrenNode; node != NULL; node = node->next) {
+ xmlChar *lang;
+
+ if (node->name == NULL || strcmp ((gchar *) node->name, name) != 0) {
+ continue;
+ }
+ lang = xmlGetProp (node, (const guchar *)"xml:lang");
+ if (lang != NULL) {
+ const GList *l;
+ gint i;
+
+ for (l = lang_list, i = 0;
+ l != NULL && i < *best_lang_score;
+ l = l->next, i++) {
+ if (strcmp ((gchar *) l->data, (gchar *) lang) == 0) {
+ best_node = node;
+ *best_lang_score = i;
+ }
+ }
+ } else {
+ if (best_node == NULL) {
+ best_node = node;
+ }
+ }
+ xmlFree (lang);
+ if (*best_lang_score == 0) {
+ return best_node;
+ }
+ }
+
+ return best_node;
+}
+
+xmlNode *
+e_xml_get_child_by_name_by_lang_list (const xmlNode *parent,
+ const gchar *name,
+ const GList *lang_list)
+{
+ gint best_lang_score = INT_MAX;
+
+ g_return_val_if_fail (parent != NULL, NULL);
+ g_return_val_if_fail (name != NULL, NULL);
+
+ if (lang_list == NULL) {
+ const gchar * const *language_names;
+
+ language_names = g_get_language_names ();
+ while (*language_names != NULL)
+ lang_list = g_list_append (
+ (GList *) lang_list, (gchar *) * language_names++);
+ }
+ return e_xml_get_child_by_name_by_lang_list_with_score
+ (parent,name,
+ lang_list,
+ &best_lang_score);
+}
+
+xmlNode *
+e_xml_get_child_by_name_no_lang (const xmlNode *parent,
+ const gchar *name)
+{
+ xmlNodePtr node;
+
+ g_return_val_if_fail (parent != NULL, NULL);
+ g_return_val_if_fail (name != NULL, NULL);
+
+ for (node = parent->xmlChildrenNode; node != NULL; node = node->next) {
+ xmlChar *lang;
+
+ if (node->name == NULL || strcmp ((gchar *) node->name, name) != 0) {
+ continue;
+ }
+ lang = xmlGetProp (node, (const guchar *)"xml:lang");
+ if (lang == NULL) {
+ return node;
+ }
+ xmlFree (lang);
+ }
+
+ return NULL;
+}
+
+gint
+e_xml_get_integer_prop_by_name (const xmlNode *parent,
+ const xmlChar *prop_name)
+{
+ g_return_val_if_fail (parent != NULL, 0);
+ g_return_val_if_fail (prop_name != NULL, 0);
+
+ return e_xml_get_integer_prop_by_name_with_default (parent, prop_name, 0);
+}
+
+gint
+e_xml_get_integer_prop_by_name_with_default (const xmlNode *parent,
+ const xmlChar *prop_name,
+ gint def)
+{
+ xmlChar *prop;
+ gint ret_val = def;
+
+ g_return_val_if_fail (parent != NULL, 0);
+ g_return_val_if_fail (prop_name != NULL, 0);
+
+ prop = xmlGetProp ((xmlNode *) parent, prop_name);
+ if (prop != NULL) {
+ (void) sscanf ((gchar *) prop, "%d", &ret_val);
+ xmlFree (prop);
+ }
+ return ret_val;
+}
+
+void
+e_xml_set_integer_prop_by_name (xmlNode *parent,
+ const xmlChar *prop_name,
+ gint value)
+{
+ gchar *valuestr;
+
+ g_return_if_fail (parent != NULL);
+ g_return_if_fail (prop_name != NULL);
+
+ valuestr = g_strdup_printf ("%d", value);
+ xmlSetProp (parent, prop_name, (guchar *) valuestr);
+ g_free (valuestr);
+}
+
+guint
+e_xml_get_uint_prop_by_name (const xmlNode *parent,
+ const xmlChar *prop_name)
+{
+ g_return_val_if_fail (parent != NULL, 0);
+ g_return_val_if_fail (prop_name != NULL, 0);
+
+ return e_xml_get_uint_prop_by_name_with_default (parent, prop_name, 0);
+}
+
+guint
+e_xml_get_uint_prop_by_name_with_default (const xmlNode *parent,
+ const xmlChar *prop_name,
+ guint def)
+{
+ xmlChar *prop;
+ guint ret_val = def;
+
+ g_return_val_if_fail (parent != NULL, 0);
+ g_return_val_if_fail (prop_name != NULL, 0);
+
+ prop = xmlGetProp ((xmlNode *) parent, prop_name);
+ if (prop != NULL) {
+ (void) sscanf ((gchar *) prop, "%u", &ret_val);
+ xmlFree (prop);
+ }
+ return ret_val;
+}
+
+void
+e_xml_set_uint_prop_by_name (xmlNode *parent,
+ const xmlChar *prop_name,
+ guint value)
+{
+ gchar *valuestr;
+
+ g_return_if_fail (parent != NULL);
+ g_return_if_fail (prop_name != NULL);
+
+ valuestr = g_strdup_printf ("%u", value);
+ xmlSetProp (parent, prop_name, (guchar *) valuestr);
+ g_free (valuestr);
+}
+
+gboolean
+e_xml_get_bool_prop_by_name (const xmlNode *parent,
+ const xmlChar *prop_name)
+{
+ g_return_val_if_fail (parent != NULL, 0);
+ g_return_val_if_fail (prop_name != NULL, 0);
+
+ return e_xml_get_bool_prop_by_name_with_default (
+ parent, prop_name, FALSE);
+}
+
+gboolean
+e_xml_get_bool_prop_by_name_with_default (const xmlNode *parent,
+ const xmlChar *prop_name,
+ gboolean def)
+{
+ xmlChar *prop;
+ gboolean ret_val = def;
+
+ g_return_val_if_fail (parent != NULL, 0);
+ g_return_val_if_fail (prop_name != NULL, 0);
+
+ prop = xmlGetProp ((xmlNode *) parent, prop_name);
+ if (prop != NULL) {
+ if (g_ascii_strcasecmp ((gchar *) prop, "true") == 0) {
+ ret_val = TRUE;
+ } else if (g_ascii_strcasecmp ((gchar *) prop, "false") == 0) {
+ ret_val = FALSE;
+ }
+ xmlFree (prop);
+ }
+ return ret_val;
+}
+
+void
+e_xml_set_bool_prop_by_name (xmlNode *parent,
+ const xmlChar *prop_name,
+ gboolean value)
+{
+ g_return_if_fail (parent != NULL);
+ g_return_if_fail (prop_name != NULL);
+
+ if (value) {
+ xmlSetProp (parent, prop_name, (const guchar *)"true");
+ } else {
+ xmlSetProp (parent, prop_name, (const guchar *)"false");
+ }
+}
+
+gdouble
+e_xml_get_double_prop_by_name (const xmlNode *parent,
+ const xmlChar *prop_name)
+{
+ g_return_val_if_fail (parent != NULL, 0);
+ g_return_val_if_fail (prop_name != NULL, 0);
+
+ return e_xml_get_double_prop_by_name_with_default (parent, prop_name, 0.0);
+}
+
+gdouble
+e_xml_get_double_prop_by_name_with_default (const xmlNode *parent,
+ const xmlChar *prop_name,
+ gdouble def)
+{
+ xmlChar *prop;
+ gdouble ret_val = def;
+
+ g_return_val_if_fail (parent != NULL, 0);
+ g_return_val_if_fail (prop_name != NULL, 0);
+
+ prop = xmlGetProp ((xmlNode *) parent, prop_name);
+ if (prop != NULL) {
+ ret_val = e_flexible_strtod ((gchar *) prop, NULL);
+ xmlFree (prop);
+ }
+ return ret_val;
+}
+
+void
+e_xml_set_double_prop_by_name (xmlNode *parent,
+ const xmlChar *prop_name,
+ gdouble value)
+{
+ gchar buffer[E_ASCII_DTOSTR_BUF_SIZE];
+ gchar *format;
+
+ g_return_if_fail (parent != NULL);
+ g_return_if_fail (prop_name != NULL);
+
+ if (fabs (value) < 1e9 && fabs (value) > 1e-5) {
+ format = g_strdup_printf ("%%.%df", DBL_DIG);
+ } else {
+ format = g_strdup_printf ("%%.%dg", DBL_DIG);
+ }
+ e_ascii_dtostr (buffer, sizeof (buffer), format, value);
+ g_free (format);
+
+ xmlSetProp (parent, prop_name, (const guchar *) buffer);
+}
+
+gchar *
+e_xml_get_string_prop_by_name (const xmlNode *parent,
+ const xmlChar *prop_name)
+{
+ g_return_val_if_fail (parent != NULL, NULL);
+ g_return_val_if_fail (prop_name != NULL, NULL);
+
+ return e_xml_get_string_prop_by_name_with_default (parent, prop_name, NULL);
+}
+
+gchar *
+e_xml_get_string_prop_by_name_with_default (const xmlNode *parent,
+ const xmlChar *prop_name,
+ const gchar *def)
+{
+ xmlChar *prop;
+ gchar *ret_val;
+
+ g_return_val_if_fail (parent != NULL, NULL);
+ g_return_val_if_fail (prop_name != NULL, NULL);
+
+ prop = xmlGetProp ((xmlNode *) parent, prop_name);
+ if (prop != NULL) {
+ ret_val = g_strdup ((gchar *) prop);
+ xmlFree (prop);
+ } else {
+ ret_val = g_strdup (def);
+ }
+ return ret_val;
+}
+
+void
+e_xml_set_string_prop_by_name (xmlNode *parent,
+ const xmlChar *prop_name,
+ const gchar *value)
+{
+ g_return_if_fail (parent != NULL);
+ g_return_if_fail (prop_name != NULL);
+
+ if (value != NULL) {
+ xmlSetProp (parent, prop_name, (guchar *) value);
+ }
+}
+
+gchar *
+e_xml_get_translated_string_prop_by_name (const xmlNode *parent,
+ const xmlChar *prop_name)
+{
+ xmlChar *prop;
+ gchar *ret_val = NULL;
+ gchar *combined_name;
+
+ g_return_val_if_fail (parent != NULL, NULL);
+ g_return_val_if_fail (prop_name != NULL, NULL);
+
+ prop = xmlGetProp ((xmlNode *) parent, prop_name);
+ if (prop != NULL) {
+ ret_val = g_strdup ((gchar *) prop);
+ xmlFree (prop);
+ return ret_val;
+ }
+
+ combined_name = g_strdup_printf ("_%s", prop_name);
+ prop = xmlGetProp ((xmlNode *) parent, (guchar *) combined_name);
+ if (prop != NULL) {
+ ret_val = g_strdup (gettext ((gchar *) prop));
+ xmlFree (prop);
+ }
+ g_free (combined_name);
+
+ return ret_val;
+}
+