0.4.2 release

src/readline.cpp

@@ -0,0 +1,89 @@
+/* 
+ * This file part of sdcv - console version of Stardict program
+ * http://sdcv.sourceforge.net
+ * Copyright (C) 2005 Evgeniy <dushistov@mail.ru>
+ *
+ * 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 Library 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include "config.h"
+#endif
+
+#include <cstdio>
+#ifdef WITH_READLINE
+#  include <readline/readline.h>
+#  include <readline/history.h>
+#endif
+#include <glib.h>
+
+#include "utils.hpp"
+
+#include "readline.hpp"
+
+#ifndef WITH_READLINE
+ 
+class dummy_readline : public read_line {
+public:
+	bool read(const string& banner, string& line) {
+		printf(banner.c_str());
+		return stdio_getline(stdin, line);
+	}
+};
+
+#else
+
+class real_readline : public read_line {
+public:
+	real_readline()
+	{
+		using_history();
+		string histname=(string(g_get_home_dir())+G_DIR_SEPARATOR+".sdcv_history");
+		read_history(histname.c_str());;
+	}
+	~real_readline() 
+	{
+		string histname=(string(g_get_home_dir())+G_DIR_SEPARATOR+".sdcv_history");
+		write_history(histname.c_str());
+		const gchar *hist_size_str=g_getenv("SDCV_HISTSIZE");
+		int hist_size;
+		if (!hist_size_str || sscanf(hist_size_str, "%d", &hist_size)<1)
+			hist_size=2000;
+		history_truncate_file(histname.c_str(), hist_size);
+	}
+	bool read(const string &banner, string& line)
+	{
+    char *phrase=NULL;
+		phrase=readline(banner.c_str());
+		if (phrase) {
+			line=phrase;
+			free(phrase);
+			return true;
+		}
+		return false;
+	}
+	void add_to_history(const std::string& phrase) { add_history(phrase.c_str()); }
+};
+
+#endif//WITH_READLINE
+
+read_line *create_readline_object()
+{
+#ifdef WITH_READLINE
+	return new real_readline;
+#else
+	return new dummy_readline;
+#endif
+}