include/boost/url/detail/path.hpp

100.0% Lines (60/60) 100.0% Functions (3/3)

Line	Hits	Source Code
1		//
2		// Copyright (c) 2019 Vinnie Falco (vinnie.falco@gmail.com)
3		//
4		// Distributed under the Boost Software License, Version 1.0. (See accompanying
5		// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
6		//
7		// Official repository: https://github.com/boostorg/url
8		//
9
10		#ifndef BOOST_URL_DETAIL_PATH_HPP
11		#define BOOST_URL_DETAIL_PATH_HPP
12
13		#include <boost/url/detail/config.hpp>
14		#include <boost/core/detail/string_view.hpp>
15
16		namespace boost {
17		namespace urls {
18		namespace detail {
19
20		// Return the number of characters at
21		// the front of the path that are reserved
22		inline
23		std::size_t
24	4368	path_prefix(
25		char const* p,
26		std::size_t n) noexcept
27		{
28	4368	switch(n)
29		{
30	311	case 0:
31	311	return 0;
32
33	240	case 1:
34	240	if(p[0] == '/')
35	155	return 1;
36	85	return 0;
37
38	259	case 2:
39	259	if(p[0] == '/')
40	158	return 1;
41	101	if( p[0] == '.' &&
42	86	p[1] == '/')
43	57	return 2;
44	44	return 0;
45
46	3558	default:
47	3558	if(p[0] == '/')
48		{
49	1906	if( p[1] == '.' &&
50	433	p[2] == '/')
51	234	return 3;
52	1672	return 1;
53		}
54	1652	if( p[0] == '.' &&
55	638	p[1] == '/')
56	351	return 2;
57	1301	break;
58		}
59	1301	return 0;
60		}
61
62		// VFALCO DEPRECATED
63		inline
64		std::size_t
65	4368	path_prefix(
66		core::string_view s) noexcept
67		{
68	4368	return path_prefix(
69	4368	s.data(), s.size());
70		}
71
72		// returns the number of adjusted
73		// segments based on the malleable prefix.
74		BOOST_URL_CXX14_CONSTEXPR_OR_INLINE
75		std::size_t
76	3906	path_segments(
77		core::string_view s,
78		std::size_t nseg) noexcept
79		{
80	3906	switch(s.size())
81		{
82	1184	case 0:
83	1184	BOOST_ASSERT(nseg == 0);
84	1184	return 0;
85
86	565	case 1:
87	565	BOOST_ASSERT(nseg == 1);
88	565	if(s[0] == '/')
89	505	return 0;
90	60	return 1;
91
92	182	case 2:
93	182	if(s[0] == '/')
94	140	return nseg;
95	66	if( s[0] == '.' &&
96	24	s[1] == '/')
97		{
98	14	BOOST_ASSERT(nseg > 1);
99	14	return nseg - 1;
100		}
101	28	return nseg;
102
103	1975	default:
104	1975	if(s[0] == '/')
105		{
106	1095	if( s[1] == '.' &&
107	67	s[2] == '/')
108		{
109	45	BOOST_ASSERT(nseg > 1);
110	45	return nseg - 1;
111		}
112	983	return nseg;
113		}
114	1024	if( s[0] == '.' &&
115	77	s[1] == '/')
116		{
117	39	BOOST_ASSERT(nseg > 1);
118	39	return nseg - 1;
119		}
120	908	break;
121		}
122	908	return nseg;
123		}
124
125		// Trim reserved characters from
126		// the front of the path.
127		inline
128		core::string_view
129		clean_path(
130		core::string_view s) noexcept
131		{
132		s.remove_prefix(
133		path_prefix(s));
134		return s;
135		}
136
137		} // detail
138		} // urls
139		} // boost
140
141		#endif
142