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extract couple of functions

This commit is contained in:
Kartik K. Agaram 2022-05-25 15:25:10 -07:00
parent cb943b9aeb
commit 9892bc5d7c
1 changed files with 42 additions and 34 deletions
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76
text.lua
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@ -769,41 +769,9 @@ function Text.keychord_pressed(chord)
Text.insert_at_cursor('\t')
save_to_disk(Lines, Filename)
elseif chord == 'left' then
assert(Lines[Cursor1.line].mode == 'text')
if Cursor1.pos > 1 then
Cursor1.pos = Cursor1.pos-1
else
local new_cursor_line = Cursor1.line
while new_cursor_line > 1 do
new_cursor_line = new_cursor_line-1
if Lines[new_cursor_line].mode == 'text' then
Cursor1.line = new_cursor_line
Cursor1.pos = utf8.len(Lines[Cursor1.line].data) + 1
break
end
end
if Cursor1.line < Screen_top1.line then
Screen_top1.line = Cursor1.line
end
end
Text.left()
elseif chord == 'right' then
assert(Lines[Cursor1.line].mode == 'text')
if Cursor1.pos <= utf8.len(Lines[Cursor1.line].data) then
Cursor1.pos = Cursor1.pos+1
else
local new_cursor_line = Cursor1.line
while new_cursor_line <= #Lines-1 do
new_cursor_line = new_cursor_line+1
if Lines[new_cursor_line].mode == 'text' then
Cursor1.line = new_cursor_line
Cursor1.pos = 1
break
end
end
if Cursor1.line > Screen_bottom1.line then
Screen_top1.line = Cursor1.line
end
end
Text.right()
elseif chord == 'home' then
Cursor1.pos = 1
elseif chord == 'end' then
@ -957,6 +925,46 @@ function Text.keychord_pressed(chord)
end
end
function Text.left()
assert(Lines[Cursor1.line].mode == 'text')
if Cursor1.pos > 1 then
Cursor1.pos = Cursor1.pos-1
else
local new_cursor_line = Cursor1.line
while new_cursor_line > 1 do
new_cursor_line = new_cursor_line-1
if Lines[new_cursor_line].mode == 'text' then
Cursor1.line = new_cursor_line
Cursor1.pos = utf8.len(Lines[Cursor1.line].data) + 1
break
end
end
if Cursor1.line < Screen_top1.line then
Screen_top1.line = Cursor1.line
end
end
end
function Text.right()
assert(Lines[Cursor1.line].mode == 'text')
if Cursor1.pos <= utf8.len(Lines[Cursor1.line].data) then
Cursor1.pos = Cursor1.pos+1
else
local new_cursor_line = Cursor1.line
while new_cursor_line <= #Lines-1 do
new_cursor_line = new_cursor_line+1
if Lines[new_cursor_line].mode == 'text' then
Cursor1.line = new_cursor_line
Cursor1.pos = 1
break
end
end
if Cursor1.line > Screen_bottom1.line then
Screen_top1.line = Cursor1.line
end
end
end
function Text.pos_at_start_of_cursor_screen_line()
if Lines[Cursor1.line].screen_line_starting_pos == nil then
return 1,1