switch to line index in a function

- Text.in_line

edit.lua

@@ -200,7 +200,7 @@ function edit.mouse_pressed(State, x,y, mouse_button)
 
   for line_index,line in ipairs(State.lines) do
     if line.mode == 'text' then
-      if Text.in_line(State, line, x,y) then
+      if Text.in_line(State, line_index, x,y) then
         -- delicate dance between cursor, selection and old cursor/selection
         -- scenarios:
         --  regular press+release: sets cursor, clears selection
@@ -245,7 +245,7 @@ function edit.mouse_released(State, x,y, mouse_button)
   else
     for line_index,line in ipairs(State.lines) do
       if line.mode == 'text' then
-        if Text.in_line(State, line, x,y) then
+        if Text.in_line(State, line_index, x,y) then
 --?           print('reset selection')
           State.cursor1 = {
               line=line_index,

select.lua

@@ -93,7 +93,7 @@ end
 function Text.to_pos(State, x,y)
   for line_index,line in ipairs(State.lines) do
     if line.mode == 'text' then
-      if Text.in_line(State, line, x,y) then
+      if Text.in_line(State, line_index, x,y) then
         return line_index, Text.to_pos_on_line(State, line, x,y)
       end
     end

text.lua

@@ -693,7 +693,8 @@ function Text.snap_cursor_to_bottom_of_screen(State)
   Text.redraw_all(State)  -- if we're scrolling, reclaim all fragments to avoid memory leaks
 end
 
-function Text.in_line(State, line, x,y)
+function Text.in_line(State, line_index, x,y)
+  local line = State.lines[line_index]
   if line.starty == nil then return false end  -- outside current page
   if x < State.left then return false end
   if y < line.starty then return false end