Class: Textbringer::Buffer
- Inherits:
-
Object
- Object
- Textbringer::Buffer
- Extended by:
- Enumerable
- Defined in:
- lib/textbringer/buffer.rb
Constant Summary collapse
- GAP_SIZE =
256
- UNDO_LIMIT =
1000
- UTF8_CHAR_LEN =
Hash.new(1)
- DEFAULT_DETECT_ENCODING =
->(s) { @@auto_detect_encodings.find { |e| s.force_encoding(e) s.valid_encoding? } }
- NKF_DETECT_ENCODING =
->(s) { e = NKF.guess(s) case e when Encoding::US_ASCII Encoding::UTF_8 when Encoding::ASCII_8BIT s.force_encoding(Encoding::UTF_8) if s.valid_encoding? Encoding::UTF_8 else s.force_encoding(Encoding::ASCII_8BIT) Encoding::ASCII_8BIT end else e end }
- @@auto_detect_encodings =
[ Encoding::UTF_8, Encoding::EUC_JP, Encoding::Windows_31J ]
- @@detect_encoding_proc =
DEFAULT_DETECT_ENCODING
- @@table =
{}
- @@list =
[]
- @@current =
nil
- @@minibuffer =
nil
- @@global_mark_ring =
nil
Instance Attribute Summary collapse
-
#current_column ⇒ Object
readonly
Returns the value of attribute current_column.
-
#current_line ⇒ Object
readonly
Returns the value of attribute current_line.
-
#file_encoding ⇒ Object
Returns the value of attribute file_encoding.
-
#file_format ⇒ Object
Returns the value of attribute file_format.
-
#file_name ⇒ Object
Returns the value of attribute file_name.
-
#input_method ⇒ Object
readonly
Returns the value of attribute input_method.
-
#keymap ⇒ Object
Returns the value of attribute keymap.
-
#marks ⇒ Object
readonly
Returns the value of attribute marks.
-
#mode ⇒ Object
Returns the value of attribute mode.
-
#name ⇒ Object
Returns the value of attribute name.
-
#point ⇒ Object
readonly
Returns the value of attribute point.
-
#visible_mark ⇒ Object
readonly
Returns the value of attribute visible_mark.
Class Method Summary collapse
- .[](name) ⇒ Object
- .add(buffer) ⇒ Object
- .auto_detect_encodings ⇒ Object
- .auto_detect_encodings=(encodings) ⇒ Object
- .bury(buffer = @@current) ⇒ Object
- .count ⇒ Object
- .current ⇒ Object
- .current=(buffer) ⇒ Object
- .detect_encoding_proc ⇒ Object
- .detect_encoding_proc=(f) ⇒ Object
- .display_width(s) ⇒ Object
- .dump_unsaved_buffers(dir) ⇒ Object
- .dumped_buffers_exist?(dir) ⇒ Boolean
- .each(&block) ⇒ Object
- .find_file(file_name) ⇒ Object
- .find_or_new(name, **opts) ⇒ Object
- .global_mark_ring ⇒ Object
- .kill_em_all ⇒ Object
- .last ⇒ Object
- .list ⇒ Object
- .load(path) ⇒ Object
- .load_dumped_buffers(dir) ⇒ Object
- .minibuffer ⇒ Object
- .names ⇒ Object
- .new_buffer(name, **opts) ⇒ Object
- .new_buffer_name(name) ⇒ Object
- .open(file_name, name: File.basename(file_name)) ⇒ Object
- .other(buffer = @@current) ⇒ Object
- .region_boundaries(s, e) ⇒ Object
Instance Method Summary collapse
- #[](name) ⇒ Object
- #[]=(name, value) ⇒ Object
- #apply_mode(mode_class) ⇒ Object
- #backward_char(n = 1) ⇒ Object
- #backward_delete_char(n = 1) ⇒ Object
- #backward_line(n = 1) ⇒ Object
- #backward_word(n = 1, regexp: /\p{Letter}|\p{Number}/) ⇒ Object
- #beginning_of_buffer ⇒ Object
- #beginning_of_buffer? ⇒ Boolean
- #beginning_of_line ⇒ Object
- #beginning_of_line? ⇒ Boolean
- #binary? ⇒ Boolean
- #byte_after(location = @point) ⇒ Object
- #byte_before(location = @point) ⇒ Object
- #byteindex(forward, re, pos) ⇒ Object
- #bytesize ⇒ Object (also: #size)
- #char_after(location = @point) ⇒ Object
- #char_before(location = @point) ⇒ Object
- #clear ⇒ Object
- #composite_edit ⇒ Object
- #copy_region(s = @point, e = mark, append = false) ⇒ Object
- #current? ⇒ Boolean
- #current_symbol ⇒ Object
- #delete_char(n = 1) ⇒ Object
- #delete_region(s = @point, e = mark) ⇒ Object
- #delete_visible_mark ⇒ Object
- #disable_input_method ⇒ Object
- #display_width(s) ⇒ Object
- #dump(path) ⇒ Object
- #end_of_buffer ⇒ Object
- #end_of_buffer? ⇒ Boolean
- #end_of_line ⇒ Object
- #end_of_line? ⇒ Boolean
- #exchange_point_and_mark(mark = @mark) ⇒ Object
- #expand_tab(s) ⇒ Object
- #file_modified? ⇒ Boolean
- #filter_event(event) ⇒ Object
- #forward_char(n = 1) ⇒ Object
- #forward_line(n = 1) ⇒ Object
- #forward_word(n = 1, regexp: /\p{Letter}|\p{Number}/) ⇒ Object
- #gap_filled_with_nul? ⇒ Boolean
- #get_line_and_column(pos) ⇒ Object
- #goto_char(pos) ⇒ Object
- #goto_line(n) ⇒ Object
- #gsub(*args, &block) ⇒ Object
- #indent_to(column) ⇒ Object
-
#initialize(s = +"",, name: nil, file_name: nil, file_encoding: , file_mtime: nil, new_file: true, undo_limit: UNDO_LIMIT, read_only: false) ⇒ Buffer
constructor
s might not be copied.
- #input_method_status ⇒ Object
- #insert(x, merge_undo = false) ⇒ Object
- #insert_final_newline ⇒ Object
- #insert_for_yank(s) ⇒ Object
- #inspect ⇒ Object
- #kill ⇒ Object
- #kill_line(append = false) ⇒ Object
- #kill_region(s = @point, e = mark, append = false) ⇒ Object
- #kill_word(append = false) ⇒ Object
- #looking_at?(re) ⇒ Boolean
- #mark ⇒ Object
- #mark_to_point(mark) ⇒ Object
- #match_beginning(n) ⇒ Object
- #match_end(n) ⇒ Object
- #match_string(n) ⇒ Object
- #modified=(modified) ⇒ Object
- #modified? ⇒ Boolean
- #new_file? ⇒ Boolean
- #new_mark(location = @point) ⇒ Object
- #newline ⇒ Object
- #next_line(n = 1) ⇒ Object
- #on(name, &callback) ⇒ Object
- #on_global_mark_ring? ⇒ Boolean
- #on_killed(&callback) ⇒ Object
- #on_modified(&callback) ⇒ Object
- #point_after_mark?(mark) ⇒ Boolean
- #point_at_mark?(mark) ⇒ Boolean
- #point_before_mark?(mark) ⇒ Boolean
- #point_max ⇒ Object
- #point_min ⇒ Object
- #point_to_mark(mark) ⇒ Object
- #pop_mark ⇒ Object
- #pop_to_mark ⇒ Object
- #previous_line(n = 1) ⇒ Object
- #push_global_mark(pos = @point, force: false) ⇒ Object
-
#push_mark(pos = @point) ⇒ Object
Set mark at pos, and push the mark on the mark ring.
- #re_search_backward(s, raise_error: true, count: 1) ⇒ Object
- #re_search_forward(s, raise_error: true, count: 1) ⇒ Object
- #read_only=(value) ⇒ Object
- #read_only? ⇒ Boolean
- #read_only_edit ⇒ Object
- #redo ⇒ Object
- #replace(str, start: point_min, end: point_max) ⇒ Object
- #replace_match(str) ⇒ Object
- #replace_regexp_forward(regexp, to_str) ⇒ Object
- #revert(enc = nil) ⇒ Object
- #save(file_name = @file_name) ⇒ Object
-
#save_excursion ⇒ Object
Don’t save Buffer.current.
-
#save_point ⇒ Object
The buffer should not be modified in the given block because current_line/current_column is not updated in save_point.
- #set_mark(pos = @point) ⇒ Object
- #set_visible_mark(pos = @point) ⇒ Object
- #skip_re_backward(re) ⇒ Object
- #skip_re_forward(re) ⇒ Object
- #substring(s, e) ⇒ Object
- #to_s ⇒ Object
- #toggle_input_method(name) ⇒ Object
- #transpose_chars ⇒ Object
- #trim_trailing_whitespace ⇒ Object
- #undo ⇒ Object
- #yank ⇒ Object
- #yank_pop ⇒ Object
Constructor Details
#initialize(s = +"",, name: nil, file_name: nil, file_encoding: , file_mtime: nil, new_file: true, undo_limit: UNDO_LIMIT, read_only: false) ⇒ Buffer
s might not be copied.
207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 |
# File 'lib/textbringer/buffer.rb', line 207 def initialize(s = +"", name: nil, file_name: nil, file_encoding: CONFIG[:default_file_encoding], file_mtime: nil, new_file: true, undo_limit: UNDO_LIMIT, read_only: false) set_contents(s, file_encoding) @name = name @file_name = file_name self.file_encoding = file_encoding @file_mtime = file_mtime @new_file = new_file @undo_limit = undo_limit @point = 0 @gap_start = 0 @gap_end = 0 @marks = [] @mark = nil @mark_ring = Ring.new(CONFIG[:mark_ring_max], on_delete: ->(mark) { mark.delete }) @current_line = 1 @current_column = 1 # One-based character count @goal_column = nil # Zero-based display width count @undo_stack = [] @redo_stack = [] @undoing = false @composite_edit_level = 0 @composite_edit_actions = [] @version = 0 @modified = false @mode = FundamentalMode.new(self) @keymap = nil @attributes = {} @save_point_level = 0 @match_offsets = [] @visible_mark = nil @read_only = read_only @callbacks = {} @input_method = nil end |
Instance Attribute Details
#current_column ⇒ Object (readonly)
Returns the value of attribute current_column.
13 14 15 |
# File 'lib/textbringer/buffer.rb', line 13 def current_column @current_column end |
#current_line ⇒ Object (readonly)
Returns the value of attribute current_line.
13 14 15 |
# File 'lib/textbringer/buffer.rb', line 13 def current_line @current_line end |
#file_encoding ⇒ Object
Returns the value of attribute file_encoding.
12 13 14 |
# File 'lib/textbringer/buffer.rb', line 12 def file_encoding @file_encoding end |
#file_format ⇒ Object
Returns the value of attribute file_format.
12 13 14 |
# File 'lib/textbringer/buffer.rb', line 12 def file_format @file_format end |
#file_name ⇒ Object
Returns the value of attribute file_name.
12 13 14 |
# File 'lib/textbringer/buffer.rb', line 12 def file_name @file_name end |
#input_method ⇒ Object (readonly)
Returns the value of attribute input_method.
14 15 16 |
# File 'lib/textbringer/buffer.rb', line 14 def input_method @input_method end |
#keymap ⇒ Object
Returns the value of attribute keymap.
11 12 13 |
# File 'lib/textbringer/buffer.rb', line 11 def keymap @keymap end |
#marks ⇒ Object (readonly)
Returns the value of attribute marks.
12 13 14 |
# File 'lib/textbringer/buffer.rb', line 12 def marks @marks end |
#mode ⇒ Object
Returns the value of attribute mode.
11 12 13 |
# File 'lib/textbringer/buffer.rb', line 11 def mode @mode end |
#name ⇒ Object
Returns the value of attribute name.
12 13 14 |
# File 'lib/textbringer/buffer.rb', line 12 def name @name end |
#point ⇒ Object (readonly)
Returns the value of attribute point.
12 13 14 |
# File 'lib/textbringer/buffer.rb', line 12 def point @point end |
#visible_mark ⇒ Object (readonly)
Returns the value of attribute visible_mark.
13 14 15 |
# File 'lib/textbringer/buffer.rb', line 13 def visible_mark @visible_mark end |
Class Method Details
.[](name) ⇒ Object
134 135 136 |
# File 'lib/textbringer/buffer.rb', line 134 def self.[](name) @@table[name] end |
.add(buffer) ⇒ Object
91 92 93 94 |
# File 'lib/textbringer/buffer.rb', line 91 def self.add(buffer) @@table[buffer.name] = buffer @@list.push(buffer) end |
.auto_detect_encodings ⇒ Object
71 72 73 |
# File 'lib/textbringer/buffer.rb', line 71 def self.auto_detect_encodings @@auto_detect_encodings end |
.auto_detect_encodings=(encodings) ⇒ Object
75 76 77 |
# File 'lib/textbringer/buffer.rb', line 75 def self.auto_detect_encodings=(encodings) @@auto_detect_encodings = encodings end |
.bury(buffer = @@current) ⇒ Object
124 125 126 127 128 |
# File 'lib/textbringer/buffer.rb', line 124 def self.bury(buffer = @@current) @@list.delete(buffer) @@list.push(buffer) @@current = @@list.first end |
.count ⇒ Object
130 131 132 |
# File 'lib/textbringer/buffer.rb', line 130 def self.count @@table.size end |
.current ⇒ Object
96 97 98 |
# File 'lib/textbringer/buffer.rb', line 96 def self.current @@current end |
.current=(buffer) ⇒ Object
100 101 102 103 104 105 106 |
# File 'lib/textbringer/buffer.rb', line 100 def self.current=(buffer) if buffer && buffer.name && @@table.key?(buffer.name) @@list.delete(buffer) @@list.unshift(buffer) end @@current = buffer end |
.detect_encoding_proc ⇒ Object
79 80 81 |
# File 'lib/textbringer/buffer.rb', line 79 def self.detect_encoding_proc @@detect_encoding_proc end |
.detect_encoding_proc=(f) ⇒ Object
83 84 85 |
# File 'lib/textbringer/buffer.rb', line 83 def self.detect_encoding_proc=(f) @@detect_encoding_proc = f end |
.display_width(s) ⇒ Object
189 190 191 |
# File 'lib/textbringer/buffer.rb', line 189 def self.display_width(s) Unicode::DisplayWidth.of(s, CONFIG[:east_asian_ambiguous_width]) end |
.dump_unsaved_buffers(dir) ⇒ Object
1311 1312 1313 1314 1315 1316 1317 1318 |
# File 'lib/textbringer/buffer.rb', line 1311 def self.dump_unsaved_buffers(dir) FileUtils.mkdir_p(dir) @@list.each do |buffer| if /\A\*/ !~ buffer.name && buffer.modified? buffer.dump(File.(buffer.object_id.to_s, dir)) end end end |
.dumped_buffers_exist?(dir) ⇒ Boolean
1320 1321 1322 |
# File 'lib/textbringer/buffer.rb', line 1320 def self.dumped_buffers_exist?(dir) !Dir.glob(File.("*.metadata", dir)).empty? end |
.each(&block) ⇒ Object
185 186 187 |
# File 'lib/textbringer/buffer.rb', line 185 def self.each(&block) @@list.each(&block) end |
.find_file(file_name) ⇒ Object
152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 |
# File 'lib/textbringer/buffer.rb', line 152 def self.find_file(file_name) file_name = File.(file_name) buffer = @@table.each_value.find { |b| b.file_name == file_name } if buffer.nil? name = File.basename(file_name) begin buffer = Buffer.open(file_name, name: new_buffer_name(name)) add(buffer) rescue Errno::ENOENT buffer = new_buffer(name, file_name: file_name) end end buffer end |
.find_or_new(name, **opts) ⇒ Object
138 139 140 |
# File 'lib/textbringer/buffer.rb', line 138 def self.find_or_new(name, **opts) @@table[name] ||= new_buffer(name, **opts) end |
.global_mark_ring ⇒ Object
112 113 114 |
# File 'lib/textbringer/buffer.rb', line 112 def self.global_mark_ring @@global_mark_ring ||= Ring.new(CONFIG[:global_mark_ring_max]) end |
.kill_em_all ⇒ Object
146 147 148 149 150 |
# File 'lib/textbringer/buffer.rb', line 146 def self.kill_em_all @@table.clear @@list.clear @@current = nil end |
.last ⇒ Object
120 121 122 |
# File 'lib/textbringer/buffer.rb', line 120 def self.last @@list.last end |
.list ⇒ Object
87 88 89 |
# File 'lib/textbringer/buffer.rb', line 87 def self.list @@list.dup end |
.load(path) ⇒ Object
1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 |
# File 'lib/textbringer/buffer.rb', line 1300 def self.load(path) buffer = Buffer.new(File.binread(path)) = JSON.parse(File.binread(path + ".metadata")) buffer.name = ["name"] buffer.file_name = ["file_name"] if ["file_name"] buffer.file_encoding = Encoding.find(["file_encoding"]) buffer.file_format = ["file_format"].intern buffer.modified = true buffer end |
.load_dumped_buffers(dir) ⇒ Object
1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 |
# File 'lib/textbringer/buffer.rb', line 1324 def self.load_dumped_buffers(dir) Dir.glob(File.("*.metadata", dir)).map do || path = .sub(/\.metadata\z/, "") buffer = Buffer.load(path) add(buffer) File.unlink() File.unlink(path) buffer end end |
.minibuffer ⇒ Object
108 109 110 |
# File 'lib/textbringer/buffer.rb', line 108 def self.minibuffer @@minibuffer ||= Buffer.new(name: "*Minibuffer*") end |
.names ⇒ Object
142 143 144 |
# File 'lib/textbringer/buffer.rb', line 142 def self.names @@table.keys end |
.new_buffer(name, **opts) ⇒ Object
169 170 171 172 173 |
# File 'lib/textbringer/buffer.rb', line 169 def self.new_buffer(name, **opts) buffer = Buffer.new(**opts.merge(name: new_buffer_name(name))) add(buffer) buffer end |
.new_buffer_name(name) ⇒ Object
175 176 177 178 179 180 181 182 183 |
# File 'lib/textbringer/buffer.rb', line 175 def self.new_buffer_name(name) if @@table.key?(name) (2..Float::INFINITY).lazy.map { |i| "#{name}<#{i}>" }.find { |i| !@@table.key?(i) } else name end end |
.open(file_name, name: File.basename(file_name)) ⇒ Object
367 368 369 370 371 372 373 |
# File 'lib/textbringer/buffer.rb', line 367 def self.open(file_name, name: File.basename(file_name)) buffer = Buffer.new(name: name, file_name: file_name, new_file: false) buffer.revert buffer.read_only = !File.writable?(file_name) buffer end |
.other(buffer = @@current) ⇒ Object
116 117 118 |
# File 'lib/textbringer/buffer.rb', line 116 def self.other(buffer = @@current) @@list.find { |buf| buf != buffer } || Buffer.find_or_new("*scratch*") end |
.region_boundaries(s, e) ⇒ Object
910 911 912 913 914 915 916 |
# File 'lib/textbringer/buffer.rb', line 910 def self.region_boundaries(s, e) if s > e [e, s] else [s, e] end end |
Instance Method Details
#[](name) ⇒ Object
351 352 353 354 355 356 357 |
# File 'lib/textbringer/buffer.rb', line 351 def [](name) if @attributes.key?(name) @attributes[name] else CONFIG[name] end end |
#[]=(name, value) ⇒ Object
359 360 361 |
# File 'lib/textbringer/buffer.rb', line 359 def []=(name, value) @attributes[name] = value end |
#apply_mode(mode_class) ⇒ Object
1274 1275 1276 1277 1278 |
# File 'lib/textbringer/buffer.rb', line 1274 def apply_mode(mode_class) @keymap = nil @mode = mode_class.new(self) Utils.run_hooks(mode_class.hook_name) end |
#backward_char(n = 1) ⇒ Object
648 649 650 |
# File 'lib/textbringer/buffer.rb', line 648 def backward_char(n = 1) forward_char(-n) end |
#backward_delete_char(n = 1) ⇒ Object
637 638 639 |
# File 'lib/textbringer/buffer.rb', line 637 def backward_delete_char(n = 1) delete_char(-n) end |
#backward_line(n = 1) ⇒ Object
696 697 698 |
# File 'lib/textbringer/buffer.rb', line 696 def backward_line(n = 1) forward_line(-n) end |
#backward_word(n = 1, regexp: /\p{Letter}|\p{Number}/) ⇒ Object
663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 |
# File 'lib/textbringer/buffer.rb', line 663 def backward_word(n = 1, regexp: /\p{Letter}|\p{Number}/) n.times do break if beginning_of_buffer? backward_char while !beginning_of_buffer? && regexp !~ char_after backward_char end while !beginning_of_buffer? && regexp =~ char_after backward_char end if regexp !~ char_after forward_char end end end |
#beginning_of_buffer ⇒ Object
721 722 723 724 725 726 727 |
# File 'lib/textbringer/buffer.rb', line 721 def beginning_of_buffer if @save_point_level == 0 @current_line = 1 @current_column = 1 end @point = 0 end |
#beginning_of_buffer? ⇒ Boolean
729 730 731 |
# File 'lib/textbringer/buffer.rb', line 729 def beginning_of_buffer? @point == 0 end |
#beginning_of_line ⇒ Object
741 742 743 744 745 746 |
# File 'lib/textbringer/buffer.rb', line 741 def beginning_of_line while !beginning_of_line? backward_char end @point end |
#beginning_of_line? ⇒ Boolean
748 749 750 |
# File 'lib/textbringer/buffer.rb', line 748 def beginning_of_line? beginning_of_buffer? || byte_before == "\n" end |
#binary? ⇒ Boolean
274 275 276 |
# File 'lib/textbringer/buffer.rb', line 274 def binary? @binary end |
#byte_after(location = @point) ⇒ Object
457 458 459 460 461 462 463 |
# File 'lib/textbringer/buffer.rb', line 457 def byte_after(location = @point) if location < @gap_start @contents.byteslice(location) else @contents.byteslice(location + gap_size) end end |
#byte_before(location = @point) ⇒ Object
465 466 467 468 469 470 471 |
# File 'lib/textbringer/buffer.rb', line 465 def byte_before(location = @point) if location <= point_min || location > point_max nil else byte_after(location - 1) end end |
#byteindex(forward, re, pos) ⇒ Object
1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 |
# File 'lib/textbringer/buffer.rb', line 1128 def byteindex(forward, re, pos) @match_offsets = [] method = forward ? :index : :rindex adjust_gap(0, point_max) s = @contents[0...@gap_start] if @binary offset = pos else offset = s.byteslice(0, pos).force_encoding(Encoding::UTF_8).size s.force_encoding(Encoding::UTF_8) end begin i = s.send(method, re, offset) if i m = Regexp.last_match if m.nil? # A bug of rindex @match_offsets.push([pos, pos]) pos else b = m.pre_match.bytesize e = b + m.to_s.bytesize if e <= bytesize @match_offsets.push([b, e]) match_beg = m.begin(0) match_str = m.to_s (1 .. m.size - 1).each do |j| cb, ce = m.offset(j) if cb.nil? @match_offsets.push([nil, nil]) else bb = b + match_str[0, cb - match_beg].bytesize be = b + match_str[0, ce - match_beg].bytesize @match_offsets.push([bb, be]) end end b else nil end end else nil end end end |
#bytesize ⇒ Object Also known as: size
495 496 497 |
# File 'lib/textbringer/buffer.rb', line 495 def bytesize @contents.bytesize - gap_size end |
#char_after(location = @point) ⇒ Object
473 474 475 476 477 478 479 480 |
# File 'lib/textbringer/buffer.rb', line 473 def char_after(location = @point) if @binary byte_after(location) else s = substring(location, location + UTF8_CHAR_LEN[byte_after(location)]) s.empty? ? nil : s end end |
#char_before(location = @point) ⇒ Object
482 483 484 485 486 487 488 489 490 491 492 493 |
# File 'lib/textbringer/buffer.rb', line 482 def char_before(location = @point) if @binary byte_before(location) else if beginning_of_buffer? nil else pos = get_pos(location, -1) substring(pos, location) end end end |
#clear ⇒ Object
966 967 968 969 970 971 972 973 974 975 976 977 978 979 |
# File 'lib/textbringer/buffer.rb', line 966 def clear check_read_only_flag @contents = +"" @point = @gap_start = @gap_end = 0 @marks.each do |m| m.location = 0 end @current_line = 1 @current_column = 1 @goal_column = nil self.modified = true @undo_stack.clear @redo_stack.clear end |
#composite_edit ⇒ Object
1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 |
# File 'lib/textbringer/buffer.rb', line 1254 def composite_edit @composite_edit_level += 1 begin yield ensure @composite_edit_level -= 1 if @composite_edit_level == 0 && !@composite_edit_actions.empty? action = CompositeAction.new(self, @composite_edit_actions.first.location) @composite_edit_actions.each do |i| action.add_action(i) end action.version = @composite_edit_actions.first.version push_undo(action) @composite_edit_actions.clear end end fire_callbacks(:modified) end |
#copy_region(s = @point, e = mark, append = false) ⇒ Object
918 919 920 921 922 923 924 925 926 |
# File 'lib/textbringer/buffer.rb', line 918 def copy_region(s = @point, e = mark, append = false) s, e = Buffer.region_boundaries(s, e) str = substring(s, e) if append && !KILL_RING.empty? KILL_RING.current.concat(str) else KILL_RING.push(str) end end |
#current? ⇒ Boolean
327 328 329 |
# File 'lib/textbringer/buffer.rb', line 327 def current? @@current == self end |
#current_symbol ⇒ Object
1335 1336 1337 1338 1339 |
# File 'lib/textbringer/buffer.rb', line 1335 def current_symbol from = save_point { skip_re_backward(@mode.symbol_pattern); @point } to = save_point { skip_re_forward(@mode.symbol_pattern); @point } from < to ? substring(from, to) : nil end |
#delete_char(n = 1) ⇒ Object
599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 |
# File 'lib/textbringer/buffer.rb', line 599 def delete_char(n = 1) check_read_only_flag adjust_gap s = @point pos = get_pos(@point, n) if n > 0 str = substring(s, pos) # fill the gap with NUL to avoid invalid byte sequence in UTF-8 @contents[@gap_end...user_to_gap(pos)] = "\0" * (pos - @point) @gap_end += pos - @point @marks.each do |m| if m.location > pos m.location -= pos - @point elsif m.location > @point m.location = @point end end push_undo(DeleteAction.new(self, s, s, str)) self.modified = true elsif n < 0 str = substring(pos, s) update_line_and_column(@point, pos) # fill the gap with NUL to avoid invalid byte sequence in UTF-8 @contents[user_to_gap(pos)...@gap_start] = "\0" * (@point - pos) @marks.each do |m| if m.location >= @point m.location -= @point - pos elsif m.location > pos m.location = pos end end @point = @gap_start = pos push_undo(DeleteAction.new(self, s, pos, str)) self.modified = true end @goal_column = nil end |
#delete_region(s = @point, e = mark) ⇒ Object
933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 |
# File 'lib/textbringer/buffer.rb', line 933 def delete_region(s = @point, e = mark) check_read_only_flag old_pos = @point s, e = Buffer.region_boundaries(s, e) update_line_and_column(old_pos, s) save_point do str = substring(s, e) @point = s adjust_gap len = e - s # fill the gap with NUL to avoid invalid byte sequence in UTF-8 @contents[@gap_end, len] = "\0" * len @gap_end += len @marks.each do |m| if m.location > e m.location -= len elsif m.location > s m.location = s end end push_undo(DeleteAction.new(self, old_pos, s, str)) self.modified = true end end |
#delete_visible_mark ⇒ Object
903 904 905 906 907 908 |
# File 'lib/textbringer/buffer.rb', line 903 def delete_visible_mark if @visible_mark @visible_mark.delete @visible_mark = nil end end |
#disable_input_method ⇒ Object
1399 1400 1401 |
# File 'lib/textbringer/buffer.rb', line 1399 def disable_input_method @input_method&.disable end |
#display_width(s) ⇒ Object
202 203 204 |
# File 'lib/textbringer/buffer.rb', line 202 def display_width(s) Buffer.display_width((s)) end |
#dump(path) ⇒ Object
1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 |
# File 'lib/textbringer/buffer.rb', line 1289 def dump(path) File.binwrite(path, to_s) = { "name" => name, "file_name" => file_name, "file_encoding" => file_encoding.name, "file_format" => file_format.to_s } File.binwrite(path + ".metadata", .to_json) end |
#end_of_buffer ⇒ Object
733 734 735 |
# File 'lib/textbringer/buffer.rb', line 733 def end_of_buffer goto_char(bytesize) end |
#end_of_buffer? ⇒ Boolean
737 738 739 |
# File 'lib/textbringer/buffer.rb', line 737 def end_of_buffer? @point == bytesize end |
#end_of_line ⇒ Object
752 753 754 755 756 757 |
# File 'lib/textbringer/buffer.rb', line 752 def end_of_line while !end_of_line? forward_char end @point end |
#end_of_line? ⇒ Boolean
759 760 761 |
# File 'lib/textbringer/buffer.rb', line 759 def end_of_line? end_of_buffer? || byte_after == "\n" end |
#exchange_point_and_mark(mark = @mark) ⇒ Object
789 790 791 792 793 794 795 |
# File 'lib/textbringer/buffer.rb', line 789 def exchange_point_and_mark(mark = @mark) if mark.nil? raise EditorError, "The mark is not set" end update_line_and_column(@point, mark.location) @point, mark.location = mark.location, @point end |
#expand_tab(s) ⇒ Object
193 194 195 196 197 198 199 200 |
# File 'lib/textbringer/buffer.rb', line 193 def (s) # TODO: Support multibyte characters tw = self[:tab_width] fmt = "A#{tw}" s.b.gsub(/([^\t]{#{tw}})|([^\t]*)\t/n) { [$+].pack(fmt) }.force_encoding(Encoding::UTF_8) end |
#file_modified? ⇒ Boolean
435 436 437 |
# File 'lib/textbringer/buffer.rb', line 435 def file_modified? !@file_mtime.nil? && File.mtime(@file_name) != @file_mtime end |
#filter_event(event) ⇒ Object
1403 1404 1405 1406 1407 1408 1409 |
# File 'lib/textbringer/buffer.rb', line 1403 def filter_event(event) if @input_method @input_method.filter_event(event) else event end end |
#forward_char(n = 1) ⇒ Object
641 642 643 644 645 646 |
# File 'lib/textbringer/buffer.rb', line 641 def forward_char(n = 1) pos = get_pos(@point, n) update_line_and_column(@point, pos) @point = pos @goal_column = nil end |
#forward_line(n = 1) ⇒ Object
679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 |
# File 'lib/textbringer/buffer.rb', line 679 def forward_line(n = 1) if n > 0 n.times do end_of_line break if end_of_buffer? forward_char end elsif n < 0 (-n).times do beginning_of_line break if beginning_of_buffer? backward_char beginning_of_line end end end |
#forward_word(n = 1, regexp: /\p{Letter}|\p{Number}/) ⇒ Object
652 653 654 655 656 657 658 659 660 661 |
# File 'lib/textbringer/buffer.rb', line 652 def forward_word(n = 1, regexp: /\p{Letter}|\p{Number}/) n.times do while !end_of_buffer? && regexp !~ char_after forward_char end while !end_of_buffer? && regexp =~ char_after forward_char end end end |
#gap_filled_with_nul? ⇒ Boolean
1250 1251 1252 |
# File 'lib/textbringer/buffer.rb', line 1250 def gap_filled_with_nul? @contents[@gap_start...@gap_end]&.match?(/\A\0*\z/) end |
#get_line_and_column(pos) ⇒ Object
508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 |
# File 'lib/textbringer/buffer.rb', line 508 def get_line_and_column(pos) line = 1 + @contents[0...user_to_gap(pos)].count("\n") if pos == point_min column = 1 else i = @contents.rindex("\n", user_to_gap(pos - 1)) if i i += 1 else i = 0 end column = 1 + substring(gap_to_user(i), pos).size end [line, column] end |
#goto_char(pos) ⇒ Object
524 525 526 527 528 529 530 531 532 533 534 535 536 |
# File 'lib/textbringer/buffer.rb', line 524 def goto_char(pos) if pos < 0 || pos > size raise RangeError, "Out of buffer" end if !@binary && byte_after(pos)&.match?(/[\x80-\xbf]/n) raise ArgumentError, "Position is in the middle of a character" end @goal_column = nil if @save_point_level == 0 @current_line, @current_column = get_line_and_column(pos) end @point = pos end |
#goto_line(n) ⇒ Object
538 539 540 541 542 543 544 545 546 547 548 549 550 551 |
# File 'lib/textbringer/buffer.rb', line 538 def goto_line(n) pos = point_min i = 1 while i < n && pos < @contents.bytesize pos = @contents.index("\n", pos) break if pos.nil? i += 1 pos += 1 end @point = gap_to_user(pos) @current_line = i @current_column = 1 @goal_column = nil end |
#gsub(*args, &block) ⇒ Object
1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 |
# File 'lib/textbringer/buffer.rb', line 1353 def gsub(*args, &block) if block s = to_s.gsub(*args) { |*params| block.binding.eval('->(backref) { $~ = backref }').call($~) block.call(*params) } else s = to_s.gsub(*args) end composite_edit do delete_region(point_min, point_max) insert(s) end self end |
#indent_to(column) ⇒ Object
1280 1281 1282 1283 1284 1285 1286 1287 |
# File 'lib/textbringer/buffer.rb', line 1280 def indent_to(column) s = if self[:indent_tabs_mode] "\t" * (column / self[:tab_width]) + " " * (column % self[:tab_width]) else " " * column end insert(s) end |
#input_method_status ⇒ Object
1411 1412 1413 1414 1415 1416 1417 |
# File 'lib/textbringer/buffer.rb', line 1411 def input_method_status if @input_method&.enabled? @input_method.status else "--" end end |
#insert(x, merge_undo = false) ⇒ Object
553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 |
# File 'lib/textbringer/buffer.rb', line 553 def insert(x, merge_undo = false) s = x.to_s check_read_only_flag pos = @point size = s.bytesize adjust_gap(size) @contents[@point, size] = s.b @marks.each do |m| if m.location > @point m.location += size end end @point = @gap_start += size update_line_and_column(pos, @point) unless @undoing if merge_undo && @undo_stack.last.is_a?(InsertAction) @undo_stack.last.merge(s) @redo_stack.clear else push_undo(InsertAction.new(self, pos, s)) end end self.modified = true @goal_column = nil self end |
#insert_final_newline ⇒ Object
1381 1382 1383 1384 1385 1386 1387 1388 |
# File 'lib/textbringer/buffer.rb', line 1381 def insert_final_newline save_excursion do end_of_buffer if char_before != "\n" insert("\n") end end end |
#insert_for_yank(s) ⇒ Object
1009 1010 1011 1012 1013 1014 |
# File 'lib/textbringer/buffer.rb', line 1009 def insert_for_yank(s) if @mark.nil? || !point_at_mark?(@mark) push_mark end insert(s) end |
#inspect ⇒ Object
247 248 249 |
# File 'lib/textbringer/buffer.rb', line 247 def inspect "#<Buffer:#{@name || '0x%x' % object_id}>" end |
#kill ⇒ Object
311 312 313 314 315 316 317 318 319 320 321 |
# File 'lib/textbringer/buffer.rb', line 311 def kill @@table.delete(@name) @@list.delete(self) if @@current == self @@current = nil end @marks.each do |mark| mark.detach end fire_callbacks(:killed) end |
#kill_line(append = false) ⇒ Object
981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 |
# File 'lib/textbringer/buffer.rb', line 981 def kill_line(append = false) save_point do |saved| if end_of_buffer? raise RangeError, "End of buffer" end if char_after == ?\n forward_char else end_of_line end pos = @point point_to_mark(saved) kill_region(@point, pos, append) end end |
#kill_region(s = @point, e = mark, append = false) ⇒ Object
928 929 930 931 |
# File 'lib/textbringer/buffer.rb', line 928 def kill_region(s = @point, e = mark, append = false) copy_region(s, e, append) delete_region(s, e) end |
#kill_word(append = false) ⇒ Object
997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 |
# File 'lib/textbringer/buffer.rb', line 997 def kill_word(append = false) save_point do |saved| if end_of_buffer? raise RangeError, "End of buffer" end forward_word pos = @point point_to_mark(saved) kill_region(@point, pos, append) end end |
#looking_at?(re) ⇒ Boolean
1119 1120 1121 1122 1123 1124 1125 1126 |
# File 'lib/textbringer/buffer.rb', line 1119 def looking_at?(re) if re.is_a?(Regexp) r = /\G#{re}/ else r = "\\G(?:#{re})" end byteindex(true, r, @point) == @point end |
#mark ⇒ Object
831 832 833 834 835 836 |
# File 'lib/textbringer/buffer.rb', line 831 def mark if @mark.nil? raise EditorError, "The mark is not set" end @mark.location end |
#mark_to_point(mark) ⇒ Object
773 774 775 |
# File 'lib/textbringer/buffer.rb', line 773 def mark_to_point(mark) mark.location = @point end |
#match_beginning(n) ⇒ Object
1175 1176 1177 |
# File 'lib/textbringer/buffer.rb', line 1175 def match_beginning(n) @match_offsets[n]&.first end |
#match_end(n) ⇒ Object
1179 1180 1181 |
# File 'lib/textbringer/buffer.rb', line 1179 def match_end(n) @match_offsets[n]&.last end |
#match_string(n) ⇒ Object
1183 1184 1185 1186 1187 1188 1189 1190 |
# File 'lib/textbringer/buffer.rb', line 1183 def match_string(n) b, e = @match_offsets[n] if b.nil? nil else substring(b, e) end end |
#modified=(modified) ⇒ Object
336 337 338 339 340 341 |
# File 'lib/textbringer/buffer.rb', line 336 def modified=(modified) @modified = modified if @composite_edit_level == 0 && modified fire_callbacks(:modified) end end |
#modified? ⇒ Boolean
343 344 345 |
# File 'lib/textbringer/buffer.rb', line 343 def modified? @modified end |
#new_file? ⇒ Boolean
363 364 365 |
# File 'lib/textbringer/buffer.rb', line 363 def new_file? @new_file end |
#new_mark(location = @point) ⇒ Object
763 764 765 766 767 |
# File 'lib/textbringer/buffer.rb', line 763 def new_mark(location = @point) Mark.new(self, location).tap { |m| @marks << m } end |
#newline ⇒ Object
580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 |
# File 'lib/textbringer/buffer.rb', line 580 def newline indentation = save_point { |saved| if char_after&.match?(/[ \t]/) next "" end beginning_of_line s = @point while char_after&.match?(/[ \t]/) forward_char end str = substring(s, @point) if end_of_buffer? || char_after == "\n" delete_region(s, @point) end str } insert("\n" + indentation) end |
#next_line(n = 1) ⇒ Object
700 701 702 703 704 705 706 707 708 |
# File 'lib/textbringer/buffer.rb', line 700 def next_line(n = 1) column = get_goal_column n.times do end_of_line forward_char adjust_column(column) end @goal_column = column end |
#on(name, &callback) ⇒ Object
331 332 333 334 |
# File 'lib/textbringer/buffer.rb', line 331 def on(name, &callback) @callbacks[name] ||= [] @callbacks[name].push(callback) end |
#on_global_mark_ring? ⇒ Boolean
861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 |
# File 'lib/textbringer/buffer.rb', line 861 def on_global_mark_ring? mark_ring = Buffer.global_mark_ring if mark_ring.empty? return false end current = mark_ring.current if current&.buffer == self return true end next_mark = mark_ring[-1] if next_mark&.buffer == self return true end false end |
#on_killed(&callback) ⇒ Object
323 324 325 |
# File 'lib/textbringer/buffer.rb', line 323 def on_killed(&callback) add_callback(:killed, callback) end |
#on_modified(&callback) ⇒ Object
347 348 349 |
# File 'lib/textbringer/buffer.rb', line 347 def on_modified(&callback) add_callback(:modified, callback) end |
#point_after_mark?(mark) ⇒ Boolean
785 786 787 |
# File 'lib/textbringer/buffer.rb', line 785 def point_after_mark?(mark) @point > mark.location end |
#point_at_mark?(mark) ⇒ Boolean
777 778 779 |
# File 'lib/textbringer/buffer.rb', line 777 def point_at_mark?(mark) @point == mark.location end |
#point_before_mark?(mark) ⇒ Boolean
781 782 783 |
# File 'lib/textbringer/buffer.rb', line 781 def point_before_mark?(mark) @point < mark.location end |
#point_max ⇒ Object
504 505 506 |
# File 'lib/textbringer/buffer.rb', line 504 def point_max bytesize end |
#point_min ⇒ Object
500 501 502 |
# File 'lib/textbringer/buffer.rb', line 500 def point_min 0 end |
#point_to_mark(mark) ⇒ Object
769 770 771 |
# File 'lib/textbringer/buffer.rb', line 769 def point_to_mark(mark) goto_char(mark.location) end |
#pop_mark ⇒ Object
888 889 890 891 |
# File 'lib/textbringer/buffer.rb', line 888 def pop_mark return if @mark_ring.empty? @mark = @mark_ring.rotate(1) end |
#pop_to_mark ⇒ Object
893 894 895 896 |
# File 'lib/textbringer/buffer.rb', line 893 def pop_to_mark goto_char(mark) pop_mark end |
#previous_line(n = 1) ⇒ Object
710 711 712 713 714 715 716 717 718 719 |
# File 'lib/textbringer/buffer.rb', line 710 def previous_line(n = 1) column = get_goal_column n.times do beginning_of_line backward_char beginning_of_line adjust_column(column) end @goal_column = column end |
#push_global_mark(pos = @point, force: false) ⇒ Object
877 878 879 880 881 882 883 884 885 886 |
# File 'lib/textbringer/buffer.rb', line 877 def push_global_mark(pos = @point, force: false) if force || !on_global_mark_ring? mark = new_mark mark.location = pos Buffer.global_mark_ring.push(mark) true else false end end |
#push_mark(pos = @point) ⇒ Object
Set mark at pos, and push the mark on the mark ring. Unlike Emacs, the new mark is pushed on the mark ring instead of the old one.
849 850 851 852 853 854 855 856 857 858 859 |
# File 'lib/textbringer/buffer.rb', line 849 def push_mark(pos = @point) @mark = new_mark @mark.location = pos @mark_ring.push(@mark) if self != Buffer.minibuffer global_mark_ring = Buffer.global_mark_ring if global_mark_ring.empty? || global_mark_ring.current.buffer != self push_global_mark(pos) end end end |
#re_search_backward(s, raise_error: true, count: 1) ⇒ Object
1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 |
# File 'lib/textbringer/buffer.rb', line 1089 def re_search_backward(s, raise_error: true, count: 1) if count < 0 return re_search_forward(s, raise_error: raise_error, count: -count) end re = new_regexp(s) pos = @point count.times do p = pos begin i = byteindex(false, re, p) if i.nil? if raise_error raise SearchError, "Search failed" else return nil end end p = get_pos(p, -1) rescue RangeError if raise_error raise SearchError, "Search failed" else return nil end end while match_end(0) > pos pos = match_beginning(0) end goto_char(pos) end |
#re_search_forward(s, raise_error: true, count: 1) ⇒ Object
1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 |
# File 'lib/textbringer/buffer.rb', line 1069 def re_search_forward(s, raise_error: true, count: 1) if count < 0 return re_search_backward(s, raise_error: raise_error, count: -count) end re = new_regexp(s) pos = @point count.times do i = byteindex(true, re, pos) if i.nil? if raise_error raise SearchError, "Search failed" else return nil end end pos = match_end(0) end goto_char(pos) end |
#read_only=(value) ⇒ Object
295 296 297 298 299 300 |
# File 'lib/textbringer/buffer.rb', line 295 def read_only=(value) @read_only = value if @read_only @modified = false end end |
#read_only? ⇒ Boolean
291 292 293 |
# File 'lib/textbringer/buffer.rb', line 291 def read_only? @read_only end |
#read_only_edit ⇒ Object
302 303 304 305 306 307 308 309 |
# File 'lib/textbringer/buffer.rb', line 302 def read_only_edit self.read_only = false begin yield ensure self.read_only = true end end |
#redo ⇒ Object
1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 |
# File 'lib/textbringer/buffer.rb', line 1047 def redo check_read_only_flag if @redo_stack.empty? raise EditorError, "No further redo information" end action = @redo_stack.pop @undoing = true begin was_modified = @modified action.redo if action.version == @version @modified = false action.version = nil elsif !was_modified action.version = @version end @undo_stack.push(action) ensure @undoing = false end end |
#replace(str, start: point_min, end: point_max) ⇒ Object
958 959 960 961 962 963 964 |
# File 'lib/textbringer/buffer.rb', line 958 def replace(str, start: point_min, end: point_max) composite_edit do delete_region(start, binding.local_variable_get(:end)) goto_char(start) insert(str) end end |
#replace_match(str) ⇒ Object
1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 |
# File 'lib/textbringer/buffer.rb', line 1192 def replace_match(str) new_str = str.gsub(/\\(?:([0-9]+)|(&)|(\\))/) { |s| case when $1 match_string($1.to_i) when $2 match_string(0) when $3 "\\" end } b = match_beginning(0) e = match_end(0) goto_char(b) composite_edit do delete_region(b, e) insert(new_str) end end |
#replace_regexp_forward(regexp, to_str) ⇒ Object
1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 |
# File 'lib/textbringer/buffer.rb', line 1212 def replace_regexp_forward(regexp, to_str) result = 0 rest = substring(point, point_max) composite_edit do delete_region(point, point_max) new_str = rest.gsub(new_regexp(regexp)) { result += 1 m = Regexp.last_match to_str.gsub(/\\(?:([0-9]+)|(&)|(\\))/) { |s| case when $1 m[$1.to_i] when $2 m.to_s when $3 "\\" end } } insert(new_str) end result end |
#revert(enc = nil) ⇒ Object
375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 |
# File 'lib/textbringer/buffer.rb', line 375 def revert(enc = nil) if @file_name.nil? raise EditorError, "Buffer has no file name" end clear s, mtime = File.open(@file_name, external_encoding: Encoding::ASCII_8BIT, binmode: true) { |f| f.flock(File::LOCK_SH) [f.read, f.mtime] } enc ||= @@detect_encoding_proc.call(s) || Encoding::ASCII_8BIT s.force_encoding(enc) unless s.valid_encoding? enc = Encoding::ASCII_8BIT s.force_encoding(enc) end set_contents(s, enc) @file_mtime = mtime @modified = false end |
#save(file_name = @file_name) ⇒ Object
397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 |
# File 'lib/textbringer/buffer.rb', line 397 def save(file_name = @file_name) if file_name.nil? raise EditorError, "File name is not set" end file_name = File.(file_name) config = EditorConfig.load_file(file_name) if config["trim_trailing_whitespace"] trim_trailing_whitespace end if config["insert_final_newline"] insert_final_newline end begin File.open(file_name, "w", external_encoding: @file_encoding, binmode: true) do |f| f.flock(File::LOCK_EX) write_to_file(f) f.flush f.fsync end @file_mtime = File.mtime(file_name) rescue Errno::EISDIR if @name file_name = File.(@name, file_name) retry else raise end end if file_name != @file_name self.file_name = file_name end @version += 1 @modified = false @new_file = false @read_only = false end |
#save_excursion ⇒ Object
Don’t save Buffer.current.
814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 |
# File 'lib/textbringer/buffer.rb', line 814 def save_excursion old_point = new_mark old_mark = @mark&.dup old_column = @goal_column begin yield ensure point_to_mark(old_point) old_point.delete if old_mark @mark.location = old_mark.location old_mark.delete end @goal_column = old_column end end |
#save_point ⇒ Object
The buffer should not be modified in the given block because current_line/current_column is not updated in save_point.
799 800 801 802 803 804 805 806 807 808 809 810 811 |
# File 'lib/textbringer/buffer.rb', line 799 def save_point saved = new_mark column = @goal_column @save_point_level += 1 begin yield(saved) ensure point_to_mark(saved) saved.delete @goal_column = column @save_point_level -= 1 end end |
#set_mark(pos = @point) ⇒ Object
838 839 840 841 842 843 844 |
# File 'lib/textbringer/buffer.rb', line 838 def set_mark(pos = @point) if @mark @mark.location = pos else push_mark(pos) end end |
#set_visible_mark(pos = @point) ⇒ Object
898 899 900 901 |
# File 'lib/textbringer/buffer.rb', line 898 def set_visible_mark(pos = @point) @visible_mark ||= new_mark @visible_mark.location = pos end |
#skip_re_backward(re) ⇒ Object
1347 1348 1349 1350 1351 |
# File 'lib/textbringer/buffer.rb', line 1347 def skip_re_backward(re) while re =~ char_before backward_char end end |
#skip_re_forward(re) ⇒ Object
1341 1342 1343 1344 1345 |
# File 'lib/textbringer/buffer.rb', line 1341 def skip_re_forward(re) while re =~ char_after forward_char end end |
#substring(s, e) ⇒ Object
445 446 447 448 449 450 451 452 453 454 455 |
# File 'lib/textbringer/buffer.rb', line 445 def substring(s, e) result = if s > @gap_start || e <= @gap_start @contents[user_to_gap(s)...user_to_gap(e)] else len = @gap_start - s @contents[user_to_gap(s), len] + @contents[@gap_end, e - s - len] end result.force_encoding(Encoding::UTF_8) unless @binary result end |
#to_s ⇒ Object
439 440 441 442 443 |
# File 'lib/textbringer/buffer.rb', line 439 def to_s result = (@contents[0...@gap_start] + @contents[@gap_end..-1]) result.force_encoding(Encoding::UTF_8) unless @binary result end |
#toggle_input_method(name) ⇒ Object
1390 1391 1392 1393 1394 1395 1396 1397 |
# File 'lib/textbringer/buffer.rb', line 1390 def toggle_input_method(name) if name.nil? @input_method ||= InputMethod.find(CONFIG[:default_input_method]) else @input_method = InputMethod.find(name) end @input_method.toggle end |
#transpose_chars ⇒ Object
1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 |
# File 'lib/textbringer/buffer.rb', line 1236 def transpose_chars if end_of_line? backward_char end if beginning_of_buffer? raise RangeError, "Beginning of buffer" end backward_char c = char_after delete_char forward_char insert(c) end |
#trim_trailing_whitespace ⇒ Object
1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 |
# File 'lib/textbringer/buffer.rb', line 1370 def trim_trailing_whitespace save_excursion do beginning_of_buffer composite_edit do while re_search_forward(/[ \t]+$/, raise_error: false) replace_match("") end end end end |
#undo ⇒ Object
1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 |
# File 'lib/textbringer/buffer.rb', line 1025 def undo check_read_only_flag if @undo_stack.empty? raise EditorError, "No further undo information" end action = @undo_stack.pop @undoing = true begin was_modified = @modified action.undo if action.version == @version @modified = false action.version = nil elsif !was_modified action.version = @version end @redo_stack.push(action) ensure @undoing = false end end |
#yank ⇒ Object
1016 1017 1018 |
# File 'lib/textbringer/buffer.rb', line 1016 def yank insert_for_yank(KILL_RING.current) end |
#yank_pop ⇒ Object
1020 1021 1022 1023 |
# File 'lib/textbringer/buffer.rb', line 1020 def yank_pop delete_region insert_for_yank(KILL_RING.rotate(1)) end |