source: trunk/FACT++/src/chatclient.cc@ 11017

Last change on this file since 11017 was 10802, checked in by tbretz, 14 years ago
Simplified program options handling.
File size: 3.1 KB
Line 
1#include <boost/filesystem.hpp>
2
3#include "Configuration.h"
4#include "ChatClient.h"
5
6using namespace std;
7
8template <class T>
9void RunShell(Configuration &conf)
10{
11 // A normal kill will call its destructor! (Very nice feature ;) )
12 static T shell(conf.GetName().c_str(), conf.Get<int>("console")!=1);
13
14 WindowLog &win = shell.GetStreamIn();
15 WindowLog &wout = shell.GetStreamOut();
16
17 if (conf.Has("log"))
18 if (!wout.OpenLogFile(conf.Get<string>("log")))
19 win << kRed << "ERROR - Couldn't open log-file " << conf.Get<string>("log") << ": " << strerror(errno) << endl;
20
21 shell.Run();
22}
23
24
25// ========================================================================
26void SetupConfiguration(Configuration &conf)
27{
28 const string n = conf.GetName()+".log";
29
30 po::options_description config("Program options");
31 config.add_options()
32 ("dns", var<string>("localhost"), "Dim nameserver host name (Overwites DIM_DNS_NODE environment variable)")
33 ("log,l", var<string>(n), "Write log-file")
34 ("console,c", var<int>(), "Use console (0=shell, 1=simple buffered, X=simple unbuffered)")
35 ;
36
37 conf.AddEnv("dns", "DIM_DNS_NODE");
38
39 conf.AddOptions(config);
40}
41
42/*
43 Extract usage clause(s) [if any] for SYNOPSIS.
44 Translators: "Usage" and "or" here are patterns (regular expressions) which
45 are used to match the usage synopsis in program output. An example from cp
46 (GNU coreutils) which contains both strings:
47 Usage: cp [OPTION]... [-T] SOURCE DEST
48 or: cp [OPTION]... SOURCE... DIRECTORY
49 or: cp [OPTION]... -t DIRECTORY SOURCE...
50 */
51void PrintUsage()
52{
53 cout << "\n"
54 "The chatclient is a simple Dim based chatclient.\n"
55 "\n"
56 "The chatclient is always started with user intercation. "
57 "Just enter a message. It will be broadcasted through the chatserv, "
58 "which need to be running."
59 "\n"
60 "Usage: chatclient [-c type] [OPTIONS]\n"
61 " or: chatclient [OPTIONS]\n";
62 cout << endl;
63
64}
65
66void PrintHelp()
67{
68 /* Additional help text which is printed after the configuration
69 options goes here */
70}
71
72int main(int argc, const char *argv[])
73{
74 Configuration conf(argv[0]);
75 conf.SetPrintUsage(PrintUsage);
76 SetupConfiguration(conf);
77
78 po::variables_map vm;
79 try
80 {
81 vm = conf.Parse(argc, argv);
82 }
83#if BOOST_VERSION > 104000
84 catch (po::multiple_occurrences &e)
85 {
86 cerr << "Program options invalid due to: " << e.what() << " of '" << e.get_option_name() << "'." << endl;
87 return -1;
88 }
89#endif
90 catch (exception& e)
91 {
92 cerr << "Program options invalid due to: " << e.what() << endl;
93 return -1;
94 }
95
96 if (conf.HasVersion() || conf.HasPrint())
97 return -1;
98
99 if (conf.HasHelp())
100 {
101 PrintHelp();
102 return -1;
103 }
104
105 // To allow overwriting of DIM_DNS_NODE set 0 to 1
106 setenv("DIM_DNS_NODE", conf.Get<string>("dns").c_str(), 1);
107
108 if (conf.Get<int>("console")==0)
109 RunShell<ChatShell>(conf);
110 else
111 RunShell<ChatConsole>(conf);
112
113
114 return 0;
115}
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