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Support forward-search-history by C-s

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This commit is contained in:
aycabta 2019-12-17 12:47:09 +09:00
parent c687be4bc0
commit a14a0244b4
4 changed files with 103 additions and 27 deletions
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2
lib/reline/key_actor/emacs.rb
View file

@ -39,7 +39,7 @@ class Reline::KeyActor::Emacs < Reline::KeyActor::Base
# 18 ^R
:ed_search_prev_history,
# 19 ^S
:ed_ignore,
:ed_search_next_history,
# 20 ^T
:ed_transpose_chars,
# 21 ^U

2
lib/reline/key_actor/vi_insert.rb
View file

@ -39,7 +39,7 @@ class Reline::KeyActor::ViInsert < Reline::KeyActor::Base
# 18 ^R
:ed_search_prev_history,
# 19 ^S
:ed_ignore,
:ed_search_next_history,
# 20 ^T
:ed_insert,
# 21 ^U

88
lib/reline/line_editor.rb
View file

@ -1181,18 +1181,18 @@ class Reline::LineEditor
end
alias_method :end_of_line, :ed_move_to_end
private def ed_search_prev_history(key)
unless @history_pointer
if @is_multiline
@line_backup_in_history = whole_buffer
else
@line_backup_in_history = @line
end
end
searcher = Fiber.new do
private def generate_searcher
Fiber.new do |first_key|
prev_search_key = first_key
search_word = String.new(encoding: @encoding)
multibyte_buf = String.new(encoding: 'ASCII-8BIT')
last_hit = nil
case first_key
when "\C-r".ord
prompt_name = 'reverse-i-search'
when "\C-s".ord
prompt_name = 'i-search'
end
loop do
key = Fiber.yield(search_word)
search_again = false
@ -1206,8 +1206,9 @@ class Reline::LineEditor
grapheme_clusters.pop
search_word = grapheme_clusters.join
end
when "\C-r".ord
search_again = true
when "\C-r".ord, "\C-s".ord
search_again = true if prev_search_key == key
prev_search_key = key
else
multibyte_buf << key
if multibyte_buf.dup.force_encoding(@encoding).valid_encoding?
@ -1224,24 +1225,53 @@ class Reline::LineEditor
if search_word.empty? and Reline.last_incremental_search
search_word = Reline.last_incremental_search
end
if @history_pointer
if @history_pointer # TODO
case prev_search_key
when "\C-r".ord
history_pointer_base = 0
history = Reline::HISTORY[0..(@history_pointer - 1)]
when "\C-s".ord
history_pointer_base = @history_pointer + 1
history = Reline::HISTORY[(@history_pointer + 1)..-1]
end
else
history_pointer_base = 0
history = Reline::HISTORY
end
elsif @history_pointer
case prev_search_key
when "\C-r".ord
history_pointer_base = 0
history = Reline::HISTORY[0..@history_pointer]
when "\C-s".ord
history_pointer_base = @history_pointer
history = Reline::HISTORY[@history_pointer..-1]
end
else
history_pointer_base = 0
history = Reline::HISTORY
end
case prev_search_key
when "\C-r".ord
hit_index = history.rindex { |item|
item.include?(search_word)
}
when "\C-s".ord
hit_index = history.index { |item|
item.include?(search_word)
}
end
if hit_index
@history_pointer = hit_index
@history_pointer = history_pointer_base + hit_index
hit = Reline::HISTORY[@history_pointer]
end
end
case prev_search_key
when "\C-r".ord
prompt_name = 'reverse-i-search'
when "\C-s".ord
prompt_name = 'i-search'
end
if hit
if @is_multiline
@buffer_of_lines = hit.split("\n")
@ -1249,23 +1279,34 @@ class Reline::LineEditor
@line_index = @buffer_of_lines.size - 1
@line = @buffer_of_lines.last
@rerender_all = true
@searching_prompt = "(reverse-i-search)`%s'" % [search_word]
@searching_prompt = "(%s)`%s'" % [prompt_name, search_word]
else
@line = hit
@searching_prompt = "(reverse-i-search)`%s': %s" % [search_word, hit]
@searching_prompt = "(%s)`%s': %s" % [prompt_name, search_word, hit]
end
last_hit = hit
else
if @is_multiline
@rerender_all = true
@searching_prompt = "(failed reverse-i-search)`%s'" % [search_word]
@searching_prompt = "(failed %s)`%s'" % [prompt_name, search_word]
else
@searching_prompt = "(failed reverse-i-search)`%s': %s" % [search_word, last_hit]
@searching_prompt = "(failed %s)`%s': %s" % [prompt_name, search_word, last_hit]
end
end
end
end
searcher.resume
end
private def search_history(key)
unless @history_pointer
if @is_multiline
@line_backup_in_history = whole_buffer
else
@line_backup_in_history = @line
end
end
searcher = generate_searcher
searcher.resume(key)
@searching_prompt = "(reverse-i-search)`': "
@waiting_proc = ->(k) {
case k
@ -1308,7 +1349,7 @@ class Reline::LineEditor
@rerender_all = true
else
chr = k.is_a?(String) ? k : k.chr(Encoding::ASCII_8BIT)
if chr.match?(/[[:print:]]/) or k == "\C-h".ord or k == "\C-?".ord or k == "\C-r".ord
if chr.match?(/[[:print:]]/) or k == "\C-h".ord or k == "\C-?".ord or k == "\C-r".ord or k == "\C-s".ord
searcher.resume(k)
else
if @history_pointer
@ -1337,8 +1378,15 @@ class Reline::LineEditor
}
end
private def ed_search_next_history(key)
private def ed_search_prev_history(key)
search_history(key)
end
alias_method :reverse_search_history, :ed_search_prev_history
private def ed_search_next_history(key)
search_history(key)
end
alias_method :forward_search_history, :ed_search_next_history
private def ed_prev_history(key, arg: 1)
if @is_multiline and @line_index > 0

28
test/reline/test_key_actor_emacs.rb
View file

@ -6,6 +6,7 @@ class Reline::KeyActor::Emacs::Test < Reline::TestCase
@prompt = '> '
@config = Reline::Config.new # Emacs mode is default
Reline::HISTORY.instance_variable_set(:@config, @config)
Reline::HISTORY.clear
@encoding = (RELINE_TEST_ENCODING rescue Encoding.default_external)
@line_editor = Reline::LineEditor.new(@config)
@line_editor.reset(@prompt, @encoding)
@ -1592,6 +1593,33 @@ class Reline::KeyActor::Emacs::Test < Reline::TestCase
assert_cursor_max(0)
end
def test_search_history_to_front
Reline::HISTORY.concat([
'1235', # old
'12aa',
'1234' # new
])
assert_line('')
assert_byte_pointer_size('')
assert_cursor(0)
assert_cursor_max(0)
input_keys("\C-s123")
assert_line('1235')
assert_byte_pointer_size('')
assert_cursor(0)
assert_cursor_max(0) # doesn't determine yet
input_keys("\C-ha")
assert_line('12aa')
assert_byte_pointer_size('')
assert_cursor(0)
assert_cursor_max(0)
input_keys("\C-h3")
assert_line('1234')
assert_byte_pointer_size('')
assert_cursor(0)
assert_cursor_max(0)
end
def test_search_history_to_back_in_the_middle_of_histories
Reline::HISTORY.concat([
'1235', # old