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Support for selecting to surrounding object begin/end with [ and ]

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This commit is contained in:
Maxime Coste 2013-01-07 18:53:27 +01:00
parent 4fc598cd48
commit 3f7bf82cde
3 changed files with 74 additions and 50 deletions
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32
src/main.cc
View File

@ -311,7 +311,7 @@ void do_deindent(Context& context)
editor.erase();
}
template<bool inner>
template<SurroundFlags flags>
void do_select_object(Context& context)
{
context.input_handler().on_next_key(
@ -319,18 +319,18 @@ void do_select_object(Context& context)
typedef std::function<Selection (const Selection&)> Selector;
static const std::unordered_map<Key, Selector> key_to_selector =
{
{ { Key::Modifiers::None, '(' }, std::bind(select_surrounding, _1, CodepointPair{ '(', ')' }, inner) },
{ { Key::Modifiers::None, ')' }, std::bind(select_surrounding, _1, CodepointPair{ '(', ')' }, inner) },
{ { Key::Modifiers::None, 'b' }, std::bind(select_surrounding, _1, CodepointPair{ '(', ')' }, inner) },
{ { Key::Modifiers::None, '{' }, std::bind(select_surrounding, _1, CodepointPair{ '{', '}' }, inner) },
{ { Key::Modifiers::None, '}' }, std::bind(select_surrounding, _1, CodepointPair{ '{', '}' }, inner) },
{ { Key::Modifiers::None, 'B' }, std::bind(select_surrounding, _1, CodepointPair{ '{', '}' }, inner) },
{ { Key::Modifiers::None, '[' }, std::bind(select_surrounding, _1, CodepointPair{ '[', ']' }, inner) },
{ { Key::Modifiers::None, ']' }, std::bind(select_surrounding, _1, CodepointPair{ '[', ']' }, inner) },
{ { Key::Modifiers::None, '<' }, std::bind(select_surrounding, _1, CodepointPair{ '<', '>' }, inner) },
{ { Key::Modifiers::None, '>' }, std::bind(select_surrounding, _1, CodepointPair{ '<', '>' }, inner) },
{ { Key::Modifiers::None, 'w' }, std::bind(select_whole_word<false>, _1, inner) },
{ { Key::Modifiers::None, 'W' }, std::bind(select_whole_word<true>, _1, inner) },
{ { Key::Modifiers::None, '(' }, std::bind(select_surrounding, _1, CodepointPair{ '(', ')' }, flags) },
{ { Key::Modifiers::None, ')' }, std::bind(select_surrounding, _1, CodepointPair{ '(', ')' }, flags) },
{ { Key::Modifiers::None, 'b' }, std::bind(select_surrounding, _1, CodepointPair{ '(', ')' }, flags) },
{ { Key::Modifiers::None, '{' }, std::bind(select_surrounding, _1, CodepointPair{ '{', '}' }, flags) },
{ { Key::Modifiers::None, '}' }, std::bind(select_surrounding, _1, CodepointPair{ '{', '}' }, flags) },
{ { Key::Modifiers::None, 'B' }, std::bind(select_surrounding, _1, CodepointPair{ '{', '}' }, flags) },
{ { Key::Modifiers::None, '[' }, std::bind(select_surrounding, _1, CodepointPair{ '[', ']' }, flags) },
{ { Key::Modifiers::None, ']' }, std::bind(select_surrounding, _1, CodepointPair{ '[', ']' }, flags) },
{ { Key::Modifiers::None, '<' }, std::bind(select_surrounding, _1, CodepointPair{ '<', '>' }, flags) },
{ { Key::Modifiers::None, '>' }, std::bind(select_surrounding, _1, CodepointPair{ '<', '>' }, flags) },
{ { Key::Modifiers::None, 'w' }, std::bind(select_whole_word<false>, _1, flags & SurroundFlags::Inner) },
{ { Key::Modifiers::None, 'W' }, std::bind(select_whole_word<true>, _1, flags & SurroundFlags::Inner) },
};
auto it = key_to_selector.find(key);
@ -535,8 +535,10 @@ std::unordered_map<Key, std::function<void (Context& context)>> keymap =
{ { Key::Modifiers::None, 'u' }, repeated([](Context& context) { if (not context.editor().undo()) { context.print_status("nothing left to undo"); } }) },
{ { Key::Modifiers::None, 'U' }, repeated([](Context& context) { if (not context.editor().redo()) { context.print_status("nothing left to redo"); } }) },
{ { Key::Modifiers::Alt, 'i' }, do_select_object<true> },
{ { Key::Modifiers::Alt, 'a' }, do_select_object<false> },
{ { Key::Modifiers::Alt, 'i' }, do_select_object<SurroundFlags::ToBegin | SurroundFlags::ToEnd | SurroundFlags::Inner> },
{ { Key::Modifiers::Alt, 'a' }, do_select_object<SurroundFlags::ToBegin | SurroundFlags::ToEnd> },
{ { Key::Modifiers::None, ']' }, do_select_object<SurroundFlags::ToEnd> },
{ { Key::Modifiers::None, '[' }, do_select_object<SurroundFlags::ToBegin> },
{ { Key::Modifiers::Alt, 'w' }, repeated([](Context& context) { context.editor().select(select_to_next_word<true>); }) },
{ { Key::Modifiers::Alt, 'e' }, repeated([](Context& context) { context.editor().select(select_to_next_word_end<true>); }) },

70
src/selectors.cc
View File

@ -224,51 +224,61 @@ Selection select_matching(const Selection& selection)
Selection select_surrounding(const Selection& selection,
const CodepointPair& matching,
bool inside)
SurroundFlags flags)
{
int level = 0;
const bool to_begin = flags & SurroundFlags::ToBegin;
const bool to_end = flags & SurroundFlags::ToEnd;
Utf8Iterator first = selection.last();
while (not is_begin(first))
if (to_begin)
{
if (first != selection.last() and *first == matching.second)
++level;
else if (*first == matching.first)
int level = 0;
while (not is_begin(first))
{
if (level == 0)
break;
else
--level;
if (first != selection.last() and *first == matching.second)
++level;
else if (*first == matching.first)
{
if (level == 0)
break;
else
--level;
}
--first;
}
--first;
if (level != 0 or *first != matching.first)
return selection;
}
if (level != 0 or *first != matching.first)
return selection;
level = 0;
Utf8Iterator last = first + 1;
while (not is_end(last))
Utf8Iterator last = selection.last();
if (to_end)
{
if (*last == matching.first)
++level;
else if (*last == matching.second)
int level = 0;
last = first + 1;
while (not is_end(last))
{
if (level == 0)
break;
else
--level;
if (*last == matching.first)
++level;
else if (*last == matching.second)
{
if (level == 0)
break;
else
--level;
}
++last;
}
++last;
if (level != 0 or *last != matching.second)
return selection;
}
if (level != 0 or *last != matching.second)
return selection;
if (inside)
if (flags & SurroundFlags::Inner)
{
++first;
if (first != last)
if (to_begin)
++first;
if (to_end and first != last)
--last;
}
return utf8_selection(first, last);
return to_end ? utf8_selection(first, last) : utf8_selection(last, first);
}
Selection select_to(const Selection& selection,

22
src/selectors.hh
View File

@ -2,7 +2,7 @@
#define selectors_hh_INCLUDED
#include "selection.hh"
#include "utf8.hh"
#include "unicode.hh"
namespace Kakoune
{
@ -17,10 +17,6 @@ Selection select_to_previous_word(const Selection& selection);
Selection select_line(const Selection& selection);
Selection select_matching(const Selection& selection);
using CodepointPair = std::pair<Codepoint, Codepoint>;
Selection select_surrounding(const Selection& selection,
const CodepointPair& matching, bool inside);
Selection select_to(const Selection& selection,
Codepoint c, int count, bool inclusive);
Selection select_to_reverse(const Selection& selection,
@ -43,6 +39,22 @@ SelectionList select_all_matches(const Selection& selection,
SelectionList split_selection(const Selection& selection,
const String& separator_regex);
enum class SurroundFlags
{
ToBegin = 1,
ToEnd = 2,
Inner = 4
};
constexpr bool operator&(SurroundFlags lhs, SurroundFlags rhs)
{ return (bool)((int)lhs & (int) rhs); }
constexpr SurroundFlags operator|(SurroundFlags lhs, SurroundFlags rhs)
{ return (SurroundFlags)((int)lhs | (int) rhs); }
using CodepointPair = std::pair<Codepoint, Codepoint>;
Selection select_surrounding(const Selection& selection,
const CodepointPair& matching,
SurroundFlags flags);
}
#endif // selectors_hh_INCLUDED