/*
 * Licensed under the GNU Lesser General Public License Version 3
 *
 * This library 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 3 of the license, or
 * (at your option) any later version.
 *
 * This software 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 this library.  If not, see <http://www.gnu.org/licenses/>.
 */

// generated automatically - do not change


module glib.ShellUtils;

private import glib.ErrorG;
private import glib.GException;
private import glib.Str;
private import glib.c.functions;
public  import glib.c.types;


/** */
public struct ShellUtils
{

	/** */
	public static GQuark shellErrorQuark()
	{
		return g_shell_error_quark();
	}

	/**
	 * Parses a command line into an argument vector, in much the same way
	 * the shell would, but without many of the expansions the shell would
	 * perform (variable expansion, globs, operators, filename expansion,
	 * etc. are not supported). The results are defined to be the same as
	 * those you would get from a UNIX98 /bin/sh, as long as the input
	 * contains none of the unsupported shell expansions. If the input
	 * does contain such expansions, they are passed through
	 * literally. Possible errors are those from the #G_SHELL_ERROR
	 * domain. Free the returned vector with g_strfreev().
	 *
	 * Params:
	 *     commandLine = command line to parse
	 *     argcp = return location for number of args, or %NULL
	 *     argvp = return
	 *         location for array of args, or %NULL
	 *
	 * Returns: %TRUE on success, %FALSE if error set
	 *
	 * Throws: GException on failure.
	 */
	public static bool shellParseArgv(string commandLine, out string[] argvp)
	{
		int argcp;
		char** outargvp = null;
		GError* err = null;

		auto p = g_shell_parse_argv(Str.toStringz(commandLine), &argcp, &outargvp, &err) != 0;

		if (err !is null)
		{
			throw new GException( new ErrorG(err) );
		}

		argvp = Str.toStringArray(outargvp, argcp);

		return p;
	}

	/**
	 * Quotes a string so that the shell (/bin/sh) will interpret the
	 * quoted string to mean @unquoted_string. If you pass a filename to
	 * the shell, for example, you should first quote it with this
	 * function.  The return value must be freed with g_free(). The
	 * quoting style used is undefined (single or double quotes may be
	 * used).
	 *
	 * Params:
	 *     unquotedString = a literal string
	 *
	 * Returns: quoted string
	 */
	public static string shellQuote(string unquotedString)
	{
		auto retStr = g_shell_quote(Str.toStringz(unquotedString));

		scope(exit) Str.freeString(retStr);
		return Str.toString(retStr);
	}

	/**
	 * Unquotes a string as the shell (/bin/sh) would. Only handles
	 * quotes; if a string contains file globs, arithmetic operators,
	 * variables, backticks, redirections, or other special-to-the-shell
	 * features, the result will be different from the result a real shell
	 * would produce (the variables, backticks, etc. will be passed
	 * through literally instead of being expanded). This function is
	 * guaranteed to succeed if applied to the result of
	 * g_shell_quote(). If it fails, it returns %NULL and sets the
	 * error. The @quoted_string need not actually contain quoted or
	 * escaped text; g_shell_unquote() simply goes through the string and
	 * unquotes/unescapes anything that the shell would. Both single and
	 * double quotes are handled, as are escapes including escaped
	 * newlines. The return value must be freed with g_free(). Possible
	 * errors are in the #G_SHELL_ERROR domain.
	 *
	 * Shell quoting rules are a bit strange. Single quotes preserve the
	 * literal string exactly. escape sequences are not allowed; not even
	 * \' - if you want a ' in the quoted text, you have to do something
	 * like 'foo'\''bar'.  Double quotes allow $, `, ", \, and newline to
	 * be escaped with backslash. Otherwise double quotes preserve things
	 * literally.
	 *
	 * Params:
	 *     quotedString = shell-quoted string
	 *
	 * Returns: an unquoted string
	 *
	 * Throws: GException on failure.
	 */
	public static string shellUnquote(string quotedString)
	{
		GError* err = null;

		auto retStr = g_shell_unquote(Str.toStringz(quotedString), &err);

		if (err !is null)
		{
			throw new GException( new ErrorG(err) );
		}

		scope(exit) Str.freeString(retStr);
		return Str.toString(retStr);
	}
}