fix: Only change cell size per column/row

lua/easytables/table.lua

@@ -22,6 +22,32 @@ function M:value_at(row, col)
     return self.table[row][col]
 end
 
+function M:get_largest_length_for_column(
+    col --[[ int ]]
+) -- int
+    local largest = #self.table[1][col]
+    for _, row in ipairs(self.table) do
+        if #row[col] > largest then
+            largest = #row[col]
+        end
+    end
+
+    return largest
+end
+
+function M:get_largest_length_for_row(
+    row --[[ int ]]
+) -- int
+    local largest = #self.table[row][1]
+    for _, col in ipairs(self.table[row]) do
+        if #col > largest then
+            largest = #col
+        end
+    end
+
+    return largest
+end
+
 function M:get_largest_length()
     local largest = #self.table[1][1]
     for _, row in ipairs(self.table) do
@@ -35,6 +61,18 @@ function M:get_largest_length()
     return largest
 end
 
+function M:get_widths_for_columns(
+    min_width --[[ int ]]
+) -- table
+    local widths = {}
+
+    for i = 1, #self.table[1] do
+        widths[i] = math.max(min_width, self:get_largest_length_for_column(i))
+    end
+
+    return widths
+end
+
 function M:rows_amount()
     return #self.table
 end

lua/easytables/tablebuilder.lua

@@ -16,21 +16,21 @@ DEFAULT_DRAW_REPRESENTATION_OPTIONS = {
     cross = "┼"
 }
 
-function create_horizontal_line(width, cell_width, left, middle, right, middle_t)
+function create_horizontal_line(cell_widths, left, middle, right, middle_t)
     local string = ""
 
-    for i = 1, width do
-        if i == 1 then
-            string = string .. left
-        elseif i == width then
-            string = string .. right
-        elseif (i - 1) % (cell_width + 1) == 0 then
+    string = string .. left
+
+    for i, width in ipairs(cell_widths) do
+        string = string .. string.rep(middle, width)
+
+        if i ~= #cell_widths then
             string = string .. middle_t
-        else
-            string = string .. middle
         end
     end
 
+    string = string .. right
+
     return string
 end
 
@@ -41,7 +41,10 @@ end
 -- ├─────┼─────┼─────┼─────┼─────┤
 -- `create_horizontal_divider(5, 5, {variant = "bottom"})`:
 -- └─────┴─────┴─────┴─────┴─────┘
-function create_horizontal_divider(table_width, cell_width, options)
+function create_horizontal_divider(
+    table,
+    options -- [[ table ]] -- optional
+)
     local options = options or {}
     local top_left = options.top_left or DEFAULT_DRAW_REPRESENTATION_OPTIONS.top_left
     local top_right = options.top_right or DEFAULT_DRAW_REPRESENTATION_OPTIONS.top_right
@@ -53,16 +56,17 @@ function create_horizontal_divider(table_width, cell_width, options)
     local top_t = options.top_t or DEFAULT_DRAW_REPRESENTATION_OPTIONS.top_t
     local bottom_t = options.bottom_t or DEFAULT_DRAW_REPRESENTATION_OPTIONS.bottom_t
     local cross = options.cross or DEFAULT_DRAW_REPRESENTATION_OPTIONS.cross
+    local min_width = options.min_width or DEFAULT_DRAW_REPRESENTATION_OPTIONS.min_width
     local variant = options.variant or "between"
 
-    local full_width = table_width * cell_width + table_width + 1
+    local widths = table:get_widths_for_columns(min_width)
 
     if variant == "top" then
-        return create_horizontal_line(full_width, cell_width, top_left, horizontal, top_right, top_t)
+        return create_horizontal_line(widths, top_left, horizontal, top_right, top_t)
     elseif variant == "between" then
-        return create_horizontal_line(full_width, cell_width, left_t, horizontal, right_t, cross)
+        return create_horizontal_line(widths, left_t, horizontal, right_t, cross)
     elseif variant == "bottom" then
-        return create_horizontal_line(full_width, cell_width, bottom_left, horizontal, bottom_right, bottom_t)
+        return create_horizontal_line(widths, bottom_left, horizontal, bottom_right, bottom_t)
     end
 end
 
@@ -73,17 +77,17 @@ function table.draw_representation(table, options)
     local vertical = options.vertical or DEFAULT_DRAW_REPRESENTATION_OPTIONS.vertical
 
     local representation = {}
-    local largest_length = table:get_largest_length()
-    -- If length is shorter than min_width, then add filler to the end of the string
-    local length = largest_length < min_width and min_width or largest_length
 
-    local horizontal_divider = create_horizontal_divider(table:cols_amount(), length, options)
+    local horizontal_divider = create_horizontal_divider(table, options)
 
-    representation[#representation + 1] = create_horizontal_divider(table:cols_amount(), length, { variant = "top" })
+    representation[#representation + 1] = create_horizontal_divider(table, { variant = "top" })
+
+    local column_widths = table:get_widths_for_columns(min_width)
 
     for i = 1, table:rows_amount() do
         local line = ""
         for j = 1, table:cols_amount() do
+            local length = column_widths[j]
             local cell = table:value_at(i, j)
             local cell_width = #cell
 
@@ -107,7 +111,7 @@ function table.draw_representation(table, options)
         end
     end
 
-    representation[#representation + 1] = create_horizontal_divider(table:cols_amount(), length, { variant = "bottom" })
+    representation[#representation + 1] = create_horizontal_divider(table, { variant = "bottom" })
 
     return representation
 end