1*f8e2c85aSAndrew Rist /**************************************************************
2cdf0e10cSrcweir *
3*f8e2c85aSAndrew Rist * Licensed to the Apache Software Foundation (ASF) under one
4*f8e2c85aSAndrew Rist * or more contributor license agreements. See the NOTICE file
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6*f8e2c85aSAndrew Rist * regarding copyright ownership. The ASF licenses this file
7*f8e2c85aSAndrew Rist * to you under the Apache License, Version 2.0 (the
8*f8e2c85aSAndrew Rist * "License"); you may not use this file except in compliance
9*f8e2c85aSAndrew Rist * with the License. You may obtain a copy of the License at
10*f8e2c85aSAndrew Rist *
11*f8e2c85aSAndrew Rist * http://www.apache.org/licenses/LICENSE-2.0
12*f8e2c85aSAndrew Rist *
13*f8e2c85aSAndrew Rist * Unless required by applicable law or agreed to in writing,
14*f8e2c85aSAndrew Rist * software distributed under the License is distributed on an
15*f8e2c85aSAndrew Rist * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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19*f8e2c85aSAndrew Rist *
20*f8e2c85aSAndrew Rist *************************************************************/
21*f8e2c85aSAndrew Rist
22*f8e2c85aSAndrew Rist
23cdf0e10cSrcweir
24cdf0e10cSrcweir
25cdf0e10cSrcweir // MARKER(update_precomp.py): autogen include statement, do not remove
26cdf0e10cSrcweir #include "precompiled_shell.hxx"
27cdf0e10cSrcweir #include <stdexcept>
28cdf0e10cSrcweir #include <osl/diagnose.h>
29cdf0e10cSrcweir #include "cmdline.hxx"
30cdf0e10cSrcweir
31cdf0e10cSrcweir //---------------------------------
32cdf0e10cSrcweir /** Simple command line abstraction
33cdf0e10cSrcweir */
34cdf0e10cSrcweir
35cdf0e10cSrcweir //################################
36cdf0e10cSrcweir // Creation
37cdf0e10cSrcweir //################################
38cdf0e10cSrcweir
39cdf0e10cSrcweir
CommandLine(size_t argc,char * argv[],const std::string & ArgPrefix)40cdf0e10cSrcweir CommandLine::CommandLine(size_t argc, char* argv[], const std::string& ArgPrefix) :
41cdf0e10cSrcweir m_argc(argc),
42cdf0e10cSrcweir m_argv(argv),
43cdf0e10cSrcweir m_argprefix(ArgPrefix)
44cdf0e10cSrcweir {
45cdf0e10cSrcweir }
46cdf0e10cSrcweir
47cdf0e10cSrcweir
48cdf0e10cSrcweir //################################
49cdf0e10cSrcweir // Query
50cdf0e10cSrcweir //################################
51cdf0e10cSrcweir
52cdf0e10cSrcweir
53cdf0e10cSrcweir /** Return the argument count
54cdf0e10cSrcweir */
get_arg_count() const55cdf0e10cSrcweir size_t CommandLine::get_arg_count() const
56cdf0e10cSrcweir {
57cdf0e10cSrcweir return m_argc;
58cdf0e10cSrcweir }
59cdf0e10cSrcweir
60cdf0e10cSrcweir /** Return an argument by index
61cdf0e10cSrcweir This method doesn't skip argument
62cdf0e10cSrcweir names if any, so if the second
63cdf0e10cSrcweir argument is an argument name the
64cdf0e10cSrcweir function nevertheless returns it.
65cdf0e10cSrcweir
66cdf0e10cSrcweir @precond 0 <= Index < GetArgumentCount
67cdf0e10cSrcweir
68cdf0e10cSrcweir @throws std::out_of_range exception
69cdf0e10cSrcweir if the given index is to high
70cdf0e10cSrcweir */
get_arg(size_t Index) const71cdf0e10cSrcweir std::string CommandLine::get_arg(size_t Index) const
72cdf0e10cSrcweir {
73cdf0e10cSrcweir OSL_PRECOND(Index < m_argc, "Index out of range");
74cdf0e10cSrcweir
75cdf0e10cSrcweir if (Index > (m_argc - 1))
76cdf0e10cSrcweir throw std::out_of_range("Invalid index");
77cdf0e10cSrcweir
78cdf0e10cSrcweir return m_argv[Index];
79cdf0e10cSrcweir }
80cdf0e10cSrcweir
81cdf0e10cSrcweir
82cdf0e10cSrcweir /** Returns all argument name found in the
83cdf0e10cSrcweir command line. An argument will be identified
84cdf0e10cSrcweir by a specified prefix. The standard prefix
85cdf0e10cSrcweir is '-'.
86cdf0e10cSrcweir If the are no argument names the returned
87cdf0e10cSrcweir container is empty.
88cdf0e10cSrcweir */
get_arg_names() const89cdf0e10cSrcweir StringListPtr_t CommandLine::get_arg_names() const
90cdf0e10cSrcweir {
91cdf0e10cSrcweir StringListPtr_t arg_cont(new StringList_t());
92cdf0e10cSrcweir
93cdf0e10cSrcweir for (size_t i = 0; i < m_argc; i++)
94cdf0e10cSrcweir {
95cdf0e10cSrcweir std::string argn = m_argv[i];
96cdf0e10cSrcweir
97cdf0e10cSrcweir if (is_arg_name(argn))
98cdf0e10cSrcweir arg_cont->push_back(argn);
99cdf0e10cSrcweir }
100cdf0e10cSrcweir
101cdf0e10cSrcweir return arg_cont;
102cdf0e10cSrcweir }
103cdf0e10cSrcweir
104cdf0e10cSrcweir /** Returns an argument by name. If there are
105cdf0e10cSrcweir duplicate argument names in the command line,
106cdf0e10cSrcweir the first one wins.
107cdf0e10cSrcweir Argument name an the argument value must be separated
108cdf0e10cSrcweir by spaces. If the argument value starts with an
109cdf0e10cSrcweir argument prefix use quotes else the return value is
110cdf0e10cSrcweir an empty string because the value will be interpreted
111cdf0e10cSrcweir as the next argument name.
112cdf0e10cSrcweir If an argument value contains spaces use quotes.
113cdf0e10cSrcweir
114cdf0e10cSrcweir @precond GetArgumentNames() -> has element ArgumentName
115cdf0e10cSrcweir
116cdf0e10cSrcweir @throws std::invalid_argument exception
117cdf0e10cSrcweir if the specified argument could not be
118cdf0e10cSrcweir found
119cdf0e10cSrcweir */
get_arg(const std::string & ArgumentName) const120cdf0e10cSrcweir std::string CommandLine::get_arg(const std::string& ArgumentName) const
121cdf0e10cSrcweir {
122cdf0e10cSrcweir std::string arg_value;
123cdf0e10cSrcweir size_t i;
124cdf0e10cSrcweir for ( i = 0; i < m_argc; i++)
125cdf0e10cSrcweir {
126cdf0e10cSrcweir std::string arg = m_argv[i];
127cdf0e10cSrcweir
128cdf0e10cSrcweir if (ArgumentName == arg && ((i+1) < m_argc) && !is_arg_name(m_argv[i+1]))
129cdf0e10cSrcweir {
130cdf0e10cSrcweir arg_value = m_argv[i+1];
131cdf0e10cSrcweir break;
132cdf0e10cSrcweir }
133cdf0e10cSrcweir }
134cdf0e10cSrcweir
135cdf0e10cSrcweir if (i == m_argc)
136cdf0e10cSrcweir throw std::invalid_argument("Invalid argument name");
137cdf0e10cSrcweir
138cdf0e10cSrcweir return arg_value;
139cdf0e10cSrcweir }
140cdf0e10cSrcweir
141cdf0e10cSrcweir
142cdf0e10cSrcweir //################################
143cdf0e10cSrcweir // Command
144cdf0e10cSrcweir //################################
145cdf0e10cSrcweir
146cdf0e10cSrcweir
147cdf0e10cSrcweir /** Set the prefix used to identify arguments in
148cdf0e10cSrcweir the command line.
149cdf0e10cSrcweir
150cdf0e10cSrcweir @precond prefix is not empty
151cdf0e10cSrcweir
152cdf0e10cSrcweir @throws std::invalid_argument exception if
153cdf0e10cSrcweir the prefix is empty
154cdf0e10cSrcweir */
set_arg_prefix(const std::string & Prefix)155cdf0e10cSrcweir void CommandLine::set_arg_prefix(const std::string& Prefix)
156cdf0e10cSrcweir {
157cdf0e10cSrcweir OSL_PRECOND(Prefix.length(), "Empty argument prefix!");
158cdf0e10cSrcweir
159cdf0e10cSrcweir if (0 == Prefix.length())
160cdf0e10cSrcweir throw std::invalid_argument("Empty argument prefix not allowed");
161cdf0e10cSrcweir
162cdf0e10cSrcweir m_argprefix = Prefix;
163cdf0e10cSrcweir }
164cdf0e10cSrcweir
165cdf0e10cSrcweir
166cdf0e10cSrcweir /** Returns whether a given argument is an argument name
167cdf0e10cSrcweir */
is_arg_name(const std::string & Argument) const168cdf0e10cSrcweir bool CommandLine::is_arg_name(const std::string& Argument) const
169cdf0e10cSrcweir {
170cdf0e10cSrcweir return (0 == Argument.compare(0, m_argprefix.length(), m_argprefix));
171cdf0e10cSrcweir }
172