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1 | // ------------------------------------------------------------------------------ |
2 | // format_test3.cpp : complicated format strings and / or advanced uses | |
3 | // ------------------------------------------------------------------------------ | |
4 | ||
5 | // Copyright Samuel Krempp 2003. Use, modification, and distribution are | |
6 | // subject to the Boost Software License, Version 1.0. (See accompanying | |
7 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | |
8 | ||
9 | // see http://www.boost.org/libs/format for library home page | |
10 | ||
11 | // ------------------------------------------------------------------------------ | |
12 | ||
13 | #define BOOST_FORMAT_STATIC_STREAM | |
14 | #include "boost/format.hpp" | |
15 | ||
16 | #include <iostream> | |
17 | #include <iomanip> | |
18 | ||
19 | #define BOOST_INCLUDE_MAIN | |
20 | #include <boost/test/test_tools.hpp> | |
21 | ||
22 | struct Rational { | |
23 | int n,d; | |
24 | Rational (int an, int ad) : n(an), d(ad) {} | |
25 | }; | |
26 | ||
27 | std::ostream& operator<<( std::ostream& os, const Rational& r) { | |
28 | os << r.n << "/" << r.d; | |
29 | return os; | |
30 | } | |
31 | ||
32 | int test_main(int, char* []) | |
33 | { | |
34 | using namespace std; | |
35 | using boost::format; | |
36 | using boost::io::group; | |
37 | using boost::str; | |
38 | ||
39 | string s, s2; | |
40 | // special paddings | |
41 | s = str( format("[%=6s] [%+6s] [%+6s] [% 6s] [%+6s]\n") | |
42 | % 123 | |
43 | % group(internal, setfill('W'), 234) | |
44 | % group(internal, setfill('X'), -345) | |
45 | % group(setfill('Y'), 456) | |
46 | % group(setfill('Z'), -10 ) ); | |
47 | ||
48 | if(s != "[ 123 ] [+WW234] [-XX345] [YY 456] [ZZZ-10]\n" ) { | |
49 | cerr << s ; | |
50 | BOOST_ERROR("formatting error. (with special paddings)"); | |
51 | } | |
52 | ||
53 | s = str( format("[% 6.8s] [% 8.6s] [% 7.7s]\n") | |
54 | % group(internal, setfill('x'), Rational(12345,54321)) | |
55 | % group(internal, setfill('x'), Rational(123,45)) | |
56 | % group(internal, setfill('x'), Rational(123,321)) | |
57 | ); | |
58 | if(s != (s2="[ 12345/5] [ xx123/4] [ 123/32]\n" )) { | |
59 | cerr << s << s2; | |
60 | BOOST_ERROR("formatting error. (with special paddings)"); | |
61 | } | |
62 | ||
63 | s = str( format("[% 6.8s] [% 6.8s] [% 6.8s] [% 6.8s] [%6.8s]\n") | |
64 | % 1234567897 | |
65 | % group(setfill('x'), 12) | |
66 | % group(internal, setfill('x'), 12) | |
67 | % group(internal, setfill('x'), 1234567890) | |
68 | % group(internal, setfill('x'), 123456) | |
69 | ); | |
70 | if(s != (s2="[ 1234567] [xxx 12] [ xxx12] [ 1234567] [123456]\n") ) { | |
71 | cerr << s << s2; | |
72 | BOOST_ERROR("formatting error. (with special paddings)"); | |
73 | } | |
74 | ||
75 | s = str( format("[% 8.6s] [% 6.4s] [% 6.4s] [% 8.6s] [% 8.6s]\n") | |
76 | % 1234567897 | |
77 | % group(setfill('x'), 12) | |
78 | % group(internal, setfill('x'), 12) | |
79 | % group(internal, setfill('x'), 1234567890) | |
80 | % group(internal, setfill('x'), 12345) | |
81 | ); | |
82 | if(s != (s2="[ 12345] [xxx 12] [ xxx12] [ xx12345] [ xx12345]\n") ) { | |
83 | cerr << s << s2; | |
84 | BOOST_ERROR("formatting error. (with special paddings)"); | |
85 | } | |
86 | ||
87 | // nesting formats : | |
88 | s = str( format("%2$014x [%1%] %|2$05|\n") % (format("%05s / %s") % -18 % 7) | |
89 | %group(showbase, -100) | |
90 | ); | |
91 | if( s != "0x0000ffffff9c [-0018 / 7] -0100\n" ){ | |
92 | cerr << s ; | |
93 | BOOST_ERROR("nesting did not work"); | |
94 | } | |
95 | ||
96 | // bind args, and various arguments counts : | |
97 | { | |
98 | boost::format bf("%1% %4% %1%"); | |
99 | bf.bind_arg(1, "one") % 2 % "three" ; | |
100 | BOOST_CHECK_EQUAL(bf.expected_args(), 4); | |
101 | BOOST_CHECK_EQUAL(bf.fed_args(), 2); | |
102 | BOOST_CHECK_EQUAL(bf.bound_args(), 1); | |
103 | BOOST_CHECK_EQUAL(bf.remaining_args(), 1); | |
104 | BOOST_CHECK_EQUAL(bf.cur_arg(), 4); | |
105 | bf.clear_binds(); | |
106 | bf % "one" % 2 % "three" ; | |
107 | BOOST_CHECK_EQUAL(bf.expected_args(), 4); | |
108 | BOOST_CHECK_EQUAL(bf.fed_args(), 3); | |
109 | BOOST_CHECK_EQUAL(bf.bound_args(), 0); | |
110 | BOOST_CHECK_EQUAL(bf.remaining_args(), 1); | |
111 | BOOST_CHECK_EQUAL(bf.cur_arg(), 4); | |
112 | } | |
113 | // testcase for bug reported at | |
114 | // http://lists.boost.org/boost-users/2006/05/19723.php | |
115 | { | |
116 | format f("%40t%1%"); | |
117 | int x = 0; | |
118 | f.bind_arg(1, x); | |
119 | f.clear(); | |
120 | } | |
121 | ||
122 | // testcase for bug reported at | |
123 | // http://lists.boost.org/boost-users/2005/11/15454.php | |
124 | std::string l_param; | |
125 | std::string l_str = (boost::format("here is an empty string: %1%") % l_param).str(); | |
126 | ||
127 | // testcase for SourceForge bug #1506914 | |
128 | std::string arg; // empty string | |
129 | s = str(format("%=8s") % arg); | |
130 | ||
131 | return 0; | |
132 | } |