util/SplitString: new utility class

Replaces GLib's g_strsplit().

2 files changed, 98 insertions, 0 deletions

diff --git a/src/util/SplitString.cxx b/src/util/SplitString.cxx
new file mode 100644
index 000000000..0bb1e5165
--- /dev/null
+++ b/src/util/SplitString.cxx
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2003-2014 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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 General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "SplitString.hxx"
+#include "StringUtil.hxx"
+
+#include <string.h>
+
+std::forward_list<std::string>
+SplitString(const char *s, char separator, bool strip)
+{
+	if (strip)
+		s = StripLeft(s);
+
+	std::forward_list<std::string> list;
+	if (*s == 0)
+		return list;
+
+	auto i = list.before_begin();
+
+	while (true) {
+		const char *next = strchr(s, separator);
+		if (next == nullptr)
+			break;
+
+		const char *end = next++;
+		if (strip)
+			end = StripRight(s, end);
+
+		i = list.emplace_after(i, s, end);
+
+		s = next;
+		if (strip)
+			s = StripLeft(s);
+	}
+
+	const char *end = s + strlen(s);
+	if (strip)
+		end = StripRight(s, end);
+
+	list.emplace_after(i, s, end);
+	return list;
+}
diff --git a/src/util/SplitString.hxx b/src/util/SplitString.hxx
new file mode 100644
index 000000000..bc95cff81
--- /dev/null
+++ b/src/util/SplitString.hxx
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2003-2014 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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 General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef MPD_SPLIT_STRING_HXX
+#define MPD_SPLIT_STRING_HXX
+
+#include <forward_list>
+#include <string>
+
+/**
+ * Split a string at a certain separator character into sub strings
+ * and returns a list of these.
+ *
+ * Two consecutive separator characters result in an empty string in
+ * the list.
+ *
+ * An empty input string, as a special case, results in an empty list
+ * (and not a list with an empty string).
+ */
+std::forward_list<std::string>
+SplitString(const char *s, char separator, bool strip=true);
+
+#endif