libsylph/xml.[ch]: xml_escape_str(): added.

git-svn-id: svn://sylpheed.sraoss.jp/sylpheed/trunk@2721 ee746299-78ed-0310-b773-934348b2243d

2 files changed, 36 insertions, 0 deletions

diff --git a/libsylph/xml.c b/libsylph/xml.c
index 9f4c4257..23b98506 100644
--- a/libsylph/xml.c
+++ b/libsylph/xml.c
@@ -520,6 +520,41 @@ gint xml_unescape_str(gchar *str)
 	return 0;
 }
 
+gchar *xml_escape_str(const gchar *str)
+{
+	GString *estr;
+	const gchar *p;
+
+	if (!str)
+		return NULL;
+
+	estr = g_string_sized_new(strlen(str));
+	for (p = str; *p != '\0'; p++) {
+		switch (*p) {
+		case '<':
+			g_string_append(estr, "&lt;");
+			break;
+		case '>':
+			g_string_append(estr, "&gt;");
+			break;
+		case '&':
+			g_string_append(estr, "&amp;");
+			break;
+		case '\'':
+			g_string_append(estr, "&apos;");
+			break;
+		case '\"':
+			g_string_append(estr, "&quot;");
+			break;
+		default:
+			g_string_append_c(estr, *p);
+			break;
+		}
+	}
+
+	return g_string_free(estr, FALSE);
+}
+
 gint xml_file_put_escape_str(FILE *fp, const gchar *str)
 {
 	const gchar *p;
diff --git a/libsylph/xml.h b/libsylph/xml.h
index 95a61ac1..766281b6 100644
--- a/libsylph/xml.h
+++ b/libsylph/xml.h
@@ -95,6 +95,7 @@ XMLTag  *xml_copy_tag		(XMLTag		*tag);
 XMLAttr *xml_copy_attr		(XMLAttr	*attr);
 
 gint xml_unescape_str		(gchar		*str);
+gchar *xml_escape_str		(const gchar	*str);
 gint xml_file_put_escape_str	(FILE		*fp,
 				 const gchar	*str);