1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
|
#ifndef completion_hh_INCLUDED
#define completion_hh_INCLUDED
#include <functional>
#include "units.hh"
#include "string.hh"
#include "vector.hh"
namespace Kakoune
{
class Context;
using CandidateList = Vector<String>;
struct Completions
{
CandidateList candidates;
ByteCount start;
ByteCount end;
Completions()
: start(0), end(0) {}
Completions(ByteCount start, ByteCount end)
: start(start), end(end) {}
Completions(ByteCount start, ByteCount end, CandidateList candidates)
: start(start), end(end), candidates(std::move(candidates)) {}
};
enum class CompletionFlags
{
None,
Fast
};
using Completer = std::function<Completions (const Context&, CompletionFlags,
StringView, ByteCount)>;
inline Completions complete_nothing(const Context& context, CompletionFlags,
StringView, ByteCount cursor_pos)
{
return Completions(cursor_pos, cursor_pos);
}
Completions shell_complete(const Context& context, CompletionFlags,
StringView, ByteCount cursor_pos);
inline Completions offset_pos(Completions completion, ByteCount offset)
{
return { completion.start + offset, completion.end + offset,
std::move(completion.candidates) };
}
namespace detail
{
template<typename Container, typename Func>
void do_matches(Container&& container, StringView prefix,
CandidateList& res, Func match_func)
{
for (auto&& elem : container)
if (match_func(elem, prefix))
res.push_back(elem);
}
template<typename Container, typename Func, typename... Rest>
void do_matches(Container&& container, StringView prefix,
CandidateList& res, Func match_func, Rest... rest)
{
do_matches(container, prefix, res, match_func);
if (res.empty())
do_matches(container, prefix, res, rest...);
}
}
template<typename Container, typename... MatchFunc>
CandidateList complete(StringView prefix, ByteCount cursor_pos,
const Container& container, MatchFunc... match_func)
{
CandidateList res;
detail::do_matches(container, prefix.substr(0, cursor_pos), res, match_func...);
return res;
}
template<typename Container>
CandidateList complete(StringView prefix, ByteCount cursor_pos,
const Container& container)
{
return complete(prefix, cursor_pos, container, prefix_match);
}
}
#endif // completion_hh_INCLUDED
|
