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This commit is contained in:
Syed Daanish
2025-12-07 17:22:12 +00:00
parent 2927df7710
commit 7acf35c8ea
55 changed files with 3506 additions and 304 deletions
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__old__/editor.rb Normal file
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class Editor
attr_accessor :text, :cursor, :selection_start, :filename
def initialize(filename, x, y, width, height)
contents = File.exist?(filename) ? File.read(filename) : "dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd"
@text = contents.grapheme_clusters
@cursor = @text.size
@selection_start = 0
@scroll = 0
@x = x
@y = y
@width = width
@height = height
@filename = filename
@folds = []
@highlights = Array.new(@text.size)
@highlight_generation = 0
@tree = nil
@num_width = (@text.count("\n") + 1).to_s.size + 3
@parser = C.ts_parser_new
@lang_ts = C.tree_sitter_ruby
C.ts_parser_set_language @parser, @lang_ts
@cached_tree = nil
C.load_query "/home/syed/main/crib/grammar/ruby.scm"
highlight!
rebuild_folded_lines!
end
def save!
File.write @filename, @text.join
end
def highlight!
gen = @highlight_generation
src = @text.join
text_bytes = []
byte_offset = 0
@text.each do |cluster|
text_bytes << byte_offset
byte_offset += cluster.bytesize
end
text_bytes << byte_offset
line_map = []
line = 0
@text.each_with_index do |ch, i|
line_map[i] = line
line += 1 if ch == "\n"
end
# TODO: add ts_tree_edit calls in erase/insert
count_ptr = FFI::MemoryPointer.new :uint32
@cached_tree = C.ts_parser_parse_string @parser, nil, src, src.bytesize
root = C.ts_tree_root_node @cached_tree
ptr = C.ts_collect_tokens root, count_ptr, @lang_ts, src
count = count_ptr.read_uint32
ints = ptr.read_array_of_uint32 count
C.free_tokens ptr
count_ptr.free
C.ts_tree_delete @cached_tree
return if gen != @highlight_generation
@highlight_generation = 0
@highlights = Array.new(@text.size)
done_folds = []
ints.each_slice(3).map do |start_byte, end_byte, sym_i|
start_cluster = byte_to_cluster start_byte, text_bytes
end_cluster = byte_to_cluster end_byte - 1, text_bytes
next if start_cluster.nil? || end_cluster.nil?
sym = TS_SYMBOL_MAP[sym_i]
if sym == "@fold"
start_row = line_map[start_cluster]
end_row = line_map[end_cluster]
next if start_row == end_row
hash_value = Zlib.crc32 @text[start_cluster...end_cluster].join
done_folds << hash_value
if (f = @folds.find { |f| f.crc32 == hash_value })
f.start = start_row
f.end = end_row
else
@folds << Fold.new(start_row, end_row, false, hash_value)
end
next
end
hl = TS_RUBY[sym]
next unless hl
(start_cluster..end_cluster).each do |i|
@highlights[i] = hl if @highlights[i].nil? || @highlights[i].priority < hl.priority
end
end
@folds.select! { |f| done_folds.include? f.crc32 }
rebuild_folded_lines!
end
def byte_to_cluster(byte, byte_starts)
left = 0
right = byte_starts.size - 2
while left <= right
mid = (left + right) / 2
if byte_starts[mid] <= byte && byte < byte_starts[mid + 1]
return mid
elsif byte < byte_starts[mid]
right = mid - 1
else
left = mid + 1
end
end
nil
end
def erase(x0, x1)
return if x0 < 0 || x1 < x0
lines_deleted = @text[x0...x1].count "\n"
@text[x0...x1] = []
@highlights[x0...x1] = []
@highlight_generation += 1
@folds.map! do |f|
if f.start >= @text[...x0].count("\n")
f.start -= lines_deleted
f.end -= lines_deleted
end
f
end
rebuild_folded_lines!
@num_width = (@text.count("\n") + 1).to_s.size + 3
end
def insert(x, str)
@text.insert x, *str.grapheme_clusters
@highlights.insert x, *Array.new(str.grapheme_clusters.size)
lines_added = str.count "\n"
@folds.map! do |f|
if f.start >= @text[...x].count("\n")
f.start += lines_added
f.end += lines_added
end
f
end
rebuild_folded_lines!
@highlight_generation += 1
@num_width = (@text.count("\n") + 1).to_s.size + 3
end
def move_up!
precursor_text = @text[...@cursor]
last_newline = precursor_text.rindex "\n"
return unless last_newline
@preferred_col ||= @cursor - last_newline
prev_start = precursor_text[...last_newline].rindex("\n") || -1
@cursor = [
prev_start + @preferred_col,
@text[prev_start + 1..].index("\n")&.+(prev_start + 1) || @text.size
].min
end
def move_down!
next_newline = @text[@cursor..].index("\n")&.+(@cursor)
return unless next_newline
@preferred_col ||= (@cursor - (@text[...@cursor].rindex("\n") || -1)).abs
@cursor = [
next_newline + @preferred_col,
@text[next_newline + 1..].index("\n")&.+(next_newline + 1) || @text.size
].min
end
def move_left!
@cursor = [@cursor - 1, 0].max
@preferred_col = nil
end
def move_right!
@cursor = [@cursor + 1, @text.size].min
@preferred_col = nil
end
def cursor_valid?
!@folded_lines.include? @text[0...@cursor].count("\n")
end
def handle_event(event)
return if event.nil?
case KEY_TYPE[event[:key_type]]
when :char
ch = event[:c].chr
ch = "\n" if ch == "\r"
if ch == "'"
cr = @text[0...@cursor].count("\n")
@folds.find { |f| f.active = !f.active if f.start <= cr && f.end >= cr }
rebuild_folded_lines!
elsif ch == ctrl_key('s').chr
save!
elsif ch =~ /[[:print:]]|\n/
insert @cursor, ch
@cursor += 1
elsif ch == "\b" || ch == "\x7f"
erase @cursor - 1, @cursor
@cursor = [@cursor - 1, 0].max
end
@preferred_col = nil
when :special
return unless MODIFIER[event[:special_modifier]] == :none
case SPECIAL_KEY[event[:special_key]]
when :up
move_up!
move_up! until cursor_valid?
when :down
move_down!
move_down! until cursor_valid?
when :left
move_left!
move_left! until cursor_valid?
when :right
move_right!
move_right! until cursor_valid?
when :delete
erase @cursor, @cursor + 1
@cursor = [@cursor, @text.size].min
@preferred_col = nil
end
end
move_right! until cursor_valid?
adjust_scroll!
end
def adjust_scroll!
cr = cursor_row_visual
start = @scroll
last = @scroll + @height - 1
if cr < start
@scroll = cr
elsif cr > last
@scroll = cr - @height + 1
end
end
def cursor_row_visual
row = col = 0
nc = 0
@text.each_with_index do |ch, i|
return row if i == @cursor
if @folded_lines.include? nc
nc += 1 if ch == "\n"
next
end
if ch == "\n"
row += 1
nc += 1
col = 0
next
end
w = C.display_width(ch)
if col + w > @width - @num_width
row += 1
col = 0
end
col += w
end
row
end
def rebuild_folded_lines!
@folded_lines = Set.new
@folds.each do |f|
(f.start + 1..f.end).each { |line_num| @folded_lines.add(line_num) } if f.active
end
end
def render
(0...@height).each { |h| (0...@width).each { |w|
C.update @y + h, @x + w, ' ', 0x000000, 0x000000, 0
} }
row = col = nc = 0
cursor_row = cursor_col = nil
@text.each_with_index do |ch, i|
if @folded_lines.include? nc
nc += 1 if ch == "\n"
next
end
if i == @cursor
cursor_row = row
cursor_col = col
end
if col == 0
color = 0x666666
color = 0xFFFFFF if cursor_row == row
num = (nc + 1).to_s.rjust @num_width - 1, '👪👩‍💻👨🏿‍🚀🏳️‍🌈🔥🛠️🌍🥶✅❌💡⏰🚀'#ddasasdasda
num.each_char.with_index do |c, j|
C.update @y + row - @scroll, @x + j, c, color, 0x000000, 0
end
if (fold = @folds.find { |f| nc == f.start })
icon = fold.active ? "" : "" # "" : "" "" : "" "" : "" "" : "" "" : "" "" : "" "" : "" "" : "" "" : "" "" : "" "" : "" "" : "" "" : "" "" : "" "" : "" "" : "" "" : "" "" : "" "" : "" "" : "" "" : "" "" : "" "" : "" "" : "" "" : "" "" : "" "" : "" "" : "" "" : "" "" : "" "" : "" "" : "" "" : "" "" : "" "" : "" "" : "" "" : "" "" : "" "" : "" "" : "" "" : "" "" : "" "" : "" "" : "" "" : "" "" : "" "" : "" "" : "" "" : "" "" : "" "" : "" "" : "" "" : "" "" : ""
C.update @y + row - @scroll, @x, icon, 0xFF0000, 0x000000, 0
end
end
if ch == "\n"
row += 1
nc += 1
col = 0
next
end
w = C.display_width(ch)
if col + w > @width - @num_width
row += 1
col = 0
end
col += w
next if row < @scroll
break if row - @scroll >= @height
fg = 0xFFFFFF
bg = 0x000000
fl = 0
if (h = @highlights[i])
fg = h.color_fg
bg = h.color_bg
fl = h.flags
end
C.update @y + row - @scroll, @x + @num_width + col - w, ch, fg, bg, fl
end
if @text[-1] == "\n" || @text.size == 0
num = (nc + 1).to_s.rjust @num_width - 1, ' '
color = 0x666666
color = 0xFFFFFF if (cursor_row || row) == row
num.each_char.with_index do |c, j|
C.update @y + row - @scroll, @x + j, c, color, 0x000000, 0
end
end
C.set_cursor @y - @scroll + (cursor_row || row), @x + @num_width + (cursor_col || col), 1
end
end