ameba update block vars and if statements style

src/helpers.cr

@@ -108,7 +108,7 @@ module Crysterm
     # Strips text of {...} tags and SGR sequences
     def clean_tags(text)
       combined_regex = /(?:#{Crysterm::Widget::TAG_REGEX.source})|(?:#{Crysterm::Widget::SGR_REGEX.source})/
-      text.gsub(combined_regex) do |buffer, _|
+      text.gsub(combined_regex) do |_, _|
         # No replacement needed, just removing matches
       end
     end

src/mixin/children.cr

@@ -130,12 +130,12 @@ module Crysterm
 
       # Emits `ev` on all children nodes, recursively.
       def emit_descendants(ev : EventHandler::Event | EventHandler::Event.class) : Nil
-        each_descendant { |el| el.emit ev }
+        each_descendant(&.emit(ev))
       end
 
       # Emits `ev` on all parent nodes.
       def emit_ancestors(ev : EventHandler::Event | EventHandler::Event.class) : Nil
-        each_ancestor { |el| el.emit ev }
+        each_ancestor(&.emit(ev))
       end
     end
   end

src/screen.cr

@@ -214,7 +214,7 @@ module Crysterm
 
       # Push resize event to screens assigned to this display. We choose this approach
       # because it results in less links between the components (as opposed to pull model).
-      @_resize_handler = GlobalEvents.on(::Crysterm::Event::Resize) do |e|
+      @_resize_handler = GlobalEvents.on(::Crysterm::Event::Resize) do |_|
         schedule_resize
       end
     end

src/screen_angles.cr

@@ -48,7 +48,7 @@ module Crysterm
       ch = lines[y][x].char
 
       if lines[y][x - 1]? && L_ANGLES.includes? lines[y][x - 1].char
-        if (lines[y][x - 1].attr != attr)
+        if lines[y][x - 1].attr != attr
           case @dock_contrast
           when DockContrast::DontDock
             return ch
@@ -62,7 +62,7 @@ module Crysterm
       end
 
       if lines[y - 1]? && U_ANGLES.includes? lines[y - 1][x].char
-        if (lines[y - 1][x].attr != attr)
+        if lines[y - 1][x].attr != attr
           case @dock_contrast
           when DockContrast::DontDock
             return ch
@@ -76,7 +76,7 @@ module Crysterm
       end
 
       if lines[y][x + 1]? && R_ANGLES.includes? lines[y][x + 1].char
-        if (lines[y][x + 1].attr != attr)
+        if lines[y][x + 1].attr != attr
           case @dock_contrast
           when DockContrast::DontDock
             return ch
@@ -90,7 +90,7 @@ module Crysterm
       end
 
       if lines[y + 1]? && D_ANGLES.includes? lines[y + 1][x].char
-        if (lines[y + 1][x].attr != attr)
+        if lines[y + 1][x].attr != attr
           case @dock_contrast
           when DockContrast::DontDock
             return ch

src/screen_attributes.cr

@@ -11,7 +11,7 @@ module Crysterm
       # i
 
       code = code[2...-1].split(';')
-      if (!code[0]? || code[0].empty?)
+      if !code[0]? || code[0].empty?
         code[0] = "0"
       end
 
@@ -64,46 +64,46 @@ module Crysterm
           bg = dfl & 0x1ff
           break
         else # color
-          if (c == 48 && code[i + 1].to_i == 5)
+          if c == 48 && code[i + 1].to_i == 5
             i += 2
             bg = code[i].to_i
             break
-          elsif (c == 48 && code[i + 1].to_i == 2)
+          elsif c == 48 && code[i + 1].to_i == 2
             i += 2
             bg = Colors.match(code[i].to_i, code[i + 1].to_i, code[i + 2].to_i)
-            if (bg == -1)
+            if bg == -1
               bg = dfl & 0x1ff
             end
             i += 2
             break
-          elsif (c == 38 && code[i + 1].to_i == 5)
+          elsif c == 38 && code[i + 1].to_i == 5
             i += 2
             fg = code[i].to_i
             break
-          elsif (c == 38 && code[i + 1].to_i == 2)
+          elsif c == 38 && code[i + 1].to_i == 2
             i += 2
             fg = Colors.match(code[i].to_i, code[i + 1].to_i, code[i + 2].to_i)
-            if (fg == -1)
+            if fg == -1
               fg = (dfl >> 9) & 0x1ff
             end
             i += 2 # XXX Why ameba says this is no-op?
             break
           end
-          if (c >= 40 && c <= 47)
+          if c >= 40 && c <= 47
             bg = c - 40
-          elsif (c >= 100 && c <= 107)
+          elsif c >= 100 && c <= 107
             bg = c - 100
             bg += 8
-          elsif (c == 49)
+          elsif c == 49
             bg = dfl & 0x1ff
-          elsif (c >= 30 && c <= 37)
+          elsif c >= 30 && c <= 37
             fg = c - 30
-          elsif (c >= 90 && c <= 97)
+          elsif c >= 90 && c <= 97
             fg = c - 90
             fg += 8
-          elsif (c == 39)
+          elsif c == 39
             fg = (dfl >> 9) & 0x1ff
-          elsif (c == 100)
+          elsif c == 100
             fg = (dfl >> 9) & 0x1ff
             bg = dfl & 0x1ff
           end
@@ -138,18 +138,18 @@ module Crysterm
         # invisible
         outbuf << "8;" if (flags & 16) != 0
 
-        if (bg != 0x1ff)
+        if bg != 0x1ff
           bg = _reduce_color(bg)
-          if (bg < 16)
+          if bg < 16
             bg < 8 ? outbuf << (bg + 40) << ';' : outbuf << (bg - 8 + 100) << ';'
           else
             outbuf << "48;5;" << bg << ';'
           end
         end
 
-        if (fg != 0x1ff)
+        if fg != 0x1ff
           fg = _reduce_color(fg)
-          if (fg < 16)
+          if fg < 16
             fg < 8 ? outbuf << (fg + 30) << ';' : outbuf << (fg - 8 + 90) << ';'
           else
             outbuf << "38;5;" << fg << ';'

src/screen_drawing.cr

@@ -70,7 +70,7 @@ module Crysterm
         # ::Log.trace { line } if line.any? &.char.!=(' ')
 
         # Skip if no change in line
-        if (!line.dirty && !(c.artificial? && (y == tput.cursor.y)))
+        if !line.dirty && !(c.artificial? && (y == tput.cursor.y))
           next
         end
 
@@ -92,7 +92,7 @@ module Crysterm
           desired_char = line[x].char
 
           # Render the artificial cursor.
-          if (c.artificial? && !c._hidden && (c._state != 0) && (x == tput.cursor.x) && (y == tput.cursor.y))
+          if c.artificial? && !c._hidden && (c._state != 0) && (x == tput.cursor.x) && (y == tput.cursor.y)
             desired_attr, tmpch = _artificial_cursor_attr(c, desired_attr)
             desired_char = tmpch if tmpch
             # XXX Is this needed:
@@ -101,9 +101,9 @@ module Crysterm
           # Take advantage of xterm's back_color_erase feature by using a
           # lookahead. Stop spitting out so many damn spaces. NOTE: Is checking
           # the bg for non BCE terminals worth the overhead?
-          if (@optimization.bce? && (desired_char == ' ') &&
+          if @optimization.bce? && (desired_char == ' ') &&
              (tput.has?(&.back_color_erase?) || ((desired_attr & 0x1ff) == (@default_attr & 0x1ff))) &&
-             (((desired_attr >> 18) & 8) == ((@default_attr >> 18) & 8)))
+             (((desired_attr >> 18) & 8) == ((@default_attr >> 18) & 8))
             clr = true
             neq = false # Current line 'not equal' to line as it was on previous render (i.e. it changed content)
 
@@ -226,34 +226,34 @@ module Crysterm
 
               flags = desired_attr >> 18
               # bold
-              if ((flags & 1) != 0)
+              if (flags & 1) != 0
                 @outbuf.print "1;"
               end
 
               # underline
-              if ((flags & 2) != 0)
+              if (flags & 2) != 0
                 @outbuf.print "4;"
               end
 
               # blink
-              if ((flags & 4) != 0)
+              if (flags & 4) != 0
                 @outbuf.print "5;"
               end
 
               # inverse
-              if ((flags & 8) != 0)
+              if (flags & 8) != 0
                 @outbuf.print "7;"
               end
 
               # invisible
-              if ((flags & 16) != 0)
+              if (flags & 16) != 0
                 @outbuf.print "8;"
               end
 
-              if (bg != 0x1ff)
+              if bg != 0x1ff
                 bg = _reduce_color(bg)
-                if (bg < 16)
-                  if (bg < 8)
+                if bg < 16
+                  if bg < 8
                     bg += 40
                   else # elsif (bg < 16)
                     bg -= 8
@@ -265,10 +265,10 @@ module Crysterm
                 end
               end
 
-              if (fg != 0x1ff)
+              if fg != 0x1ff
                 fg = _reduce_color(fg)
-                if (fg < 16)
-                  if (fg < 8)
+                if fg < 16
+                  if fg < 8
                     fg += 30
                   else # elsif (fg < 16)
                     fg -= 8
@@ -339,7 +339,7 @@ module Crysterm
           # case that the contents of the IF/ELSE block change in incompatible
           # way, this should be had in mind.
           if s
-            if (s.enter_alt_charset_mode? && !tput.features.broken_acs? && (tput.features.acscr[desired_char]? || acs))
+            if s.enter_alt_charset_mode? && !tput.features.broken_acs? && (tput.features.acscr[desired_char]? || acs)
               # Fun fact: even if tput.brokenACS wasn't checked here,
               # the linux console would still work fine because the acs
               # table would fail the check of: tput.features.acscr[desired_char]
@@ -380,7 +380,7 @@ module Crysterm
             # Note: It could be the case that the $LANG
             # is all that matters in some cases:
             # if (!tput.unicode && desired_char > '~') {
-            if (!tput.features.unicode? && (tput.terminfo.try(&.extensions.get_num?("U8")) != 1) && (desired_char > '~'))
+            if !tput.features.unicode? && (tput.terminfo.try(&.extensions.get_num?("U8")) != 1) && (desired_char > '~')
               # Reduction of ACS into ASCII chars.
               desired_char = Tput::ACSC::Data[desired_char]?.try(&.[2]) || '?'
             end
@@ -403,7 +403,7 @@ module Crysterm
         end
       end
 
-      if (acs)
+      if acs
         @main.write s.rmacs
         acs = false
       end
@@ -460,9 +460,9 @@ module Crysterm
       #  return insert_line_nc(n, y, top, bottom)
       # end
 
-      if (!tput.has?(&.change_scroll_region?) ||
+      if !tput.has?(&.change_scroll_region?) ||
          !tput.has?(&.delete_line?) ||
-         !tput.has?(&.insert_line?))
+         !tput.has?(&.insert_line?)
         STDERR.puts "Missing needed terminfo capabilities"
         return
       end
@@ -493,8 +493,8 @@ module Crysterm
     # Scroll down (up cursor-wise).
     # This will only work for top line deletion as opposed to arbitrary lines.
     def insert_line_nc(n, y, top, bottom)
-      if (!tput.has?(&.change_scroll_region?) ||
-         !tput.has?(&.delete_line?))
+      if !tput.has?(&.change_scroll_region?) ||
+         !tput.has?(&.delete_line?)
         STDERR.puts "Missing needed terminfo capabilities"
         return
       end
@@ -526,9 +526,9 @@ module Crysterm
       #   return delete_line_nc(n, y, top, bottom)
       # end
 
-      if (!tput.has?(&.change_scroll_region?) ||
+      if !tput.has?(&.change_scroll_region?) ||
          !tput.has?(&.delete_line?) ||
-         !tput.has?(&.insert_line?))
+         !tput.has?(&.insert_line?)
         STDERR.puts "Missing needed terminfo capabilities"
         return
       end
@@ -560,8 +560,8 @@ module Crysterm
     # Scroll down (up cursor-wise).
     # This will only work for top line deletion as opposed to arbitrary lines.
     def delete_line_nc(n, y, top, bottom)
-      if (!tput.has?(&.change_scroll_region?) ||
-         !tput.has?(&.delete_line?))
+      if !tput.has?(&.change_scroll_region?) ||
+         !tput.has?(&.delete_line?)
         STDERR.puts "Missing needed terminfo capabilities"
         return
       end

src/screen_interaction.cr

@@ -77,7 +77,7 @@ module Crysterm
     # first gets the keys, then potentially passes onto children
     # elements.
     def _listen_keys(el : Widget? = nil)
-      if (el && [email protected]? el)
+      if el && [email protected]? el
         el.keyable = true
         @keyable.push el
       end

src/widget/bigtext.cr

@@ -93,14 +93,14 @@ module Crysterm
       end
 
       def render
-        if (@width.nil? || @_shrink_width)
+        if @width.nil? || @_shrink_width
           # D O:
           # if (awidth - iwidth < @ratio.width * @text.length + 1)
           @width = @ratio.width * @text.size + 1
           @_shrink_width = true
           # end
         end
-        if (@height.nil? || @_shrink_height)
+        if @height.nil? || @_shrink_height
           # D O:
           # if (aheight - iheight < @ratio.height + 0)
           @height = @ratio.height
@@ -146,7 +146,7 @@ module Crysterm
               break if mcell.nil?
 
               lines[y]?.try(&.[x + mx]?).try do |cell|
-                if (style.fchar != ' ')
+                if style.fchar != ' '
                   cell.attr = default_attr
                   cell.char = mcell == 1 ? style.fchar : style.char
                 else

src/widget/input.cr

@@ -15,12 +15,12 @@ module Crysterm
             key = e.key
             ch = e.char
 
-            if (key == Tput::Key::Up || (@vi && ch == 'k'))
+            if key == Tput::Key::Up || (@vi && ch == 'k')
               scroll(-1)
               self.screen.render
               next
             end
-            if (key == Tput::Key::Down || (@vi && ch == 'j'))
+            if key == Tput::Key::Down || (@vi && ch == 'j')
               scroll(1)
               self.screen.render
               next