format crystal files

crystal/examples/add_numbers.cr

@@ -1,11 +1,11 @@
 x = 23
 y = 19
 z = x + y
-puts z  # 42
-puts "#{x} + #{y} is #{z}"  # 23 + 19 is 42
+puts z                     # 42
+puts "#{x} + #{y} is #{z}" # 23 + 19 is 42
 
 a = "23"
 b = "19"
 c = a + b
-puts c   # 2319
-puts "#{a} + #{b} is #{c}"  # 23 + 19 is 2319
+puts c                     # 2319
+puts "#{a} + #{b} is #{c}" # 23 + 19 is 2319

crystal/examples/arrays/array.cr

@@ -1,14 +1,13 @@
 planets = ["Mars", "Jupyter", "Saturn", "Earth"]
-p! planets                # ["Mars", "Jupyter", "Saturn", "Earth"]
-puts typeof(planets)      # Array(String)
-puts planets.size         # 4
+p! planets           # ["Mars", "Jupyter", "Saturn", "Earth"]
+puts typeof(planets) # Array(String)
+puts planets.size    # 4
 
 integers = [3, 8, -2]
-puts typeof(integers)     # Array(Int32)
+puts typeof(integers) # Array(Int32)
 
 floats = [3.14, 2.1]
-puts typeof(floats)       # Array(Float64)
+puts typeof(floats) # Array(Float64)
 
 mixed = [1, 3.14, "PI"]
-puts typeof(mixed)        # Array(Float64 | Int32 | String)
-
+puts typeof(mixed) # Array(Float64 | Int32 | String)

crystal/examples/arrays/array_iterate.cr

@@ -1,8 +1,8 @@
 planets = ["Mars", "Jupyter", "Saturn", "Earth"]
 
-planets.each {|planet| puts planet}
+planets.each { |planet| puts planet }
 
 # enumerate
-planets.each_with_index {|planet, idx|
-   puts "#{idx}: #{planet}"
+planets.each_with_index { |planet, idx|
+  puts "#{idx}: #{planet}"
 }

crystal/examples/arrays/array_push.cr

@@ -2,7 +2,7 @@ planets = ["Mars", "Jupyter", "Saturn"]
 
 # append / push / <<
 planets << "Pluto"
-puts planets         # ["Mars", "Jupyter", "Saturn", "Pluto"]
+puts planets # ["Mars", "Jupyter", "Saturn", "Pluto"]
 
 planets.push("Venus")
-puts planets         # ["Mars", "Jupyter", "Saturn", "Pluto", "Venus"]
+puts planets # ["Mars", "Jupyter", "Saturn", "Pluto", "Venus"]

crystal/examples/arrays/count_digits.cr

@@ -1,10 +1,10 @@
 text = "123456789112777"
 count = [0] * 10
 
-text.each_char {|chr|
-    count[chr.to_i] += 1
+text.each_char { |chr|
+  count[chr.to_i] += 1
 }
 
-count.each_with_index {|value, idx|
-    puts "#{idx} #{value}"
+count.each_with_index { |value, idx|
+  puts "#{idx} #{value}"
 }

crystal/examples/arrays/elements.cr

@@ -6,4 +6,3 @@ puts planets[-1] # Jupiter
 puts planets[0, 3]  # ["Mercury", "Venus", "Earth"]
 puts planets[0..3]  # ["Mercury", "Venus", "Earth", "Mars"]
 puts planets[0...3] # ["Mercury", "Venus", "Earth"]
-

crystal/examples/arrays/empty_array.cr

@@ -1,17 +1,15 @@
 # empty = []       # Syntax error
 
-
 empty = [] of Int32
-puts empty.size    # 0
-puts empty.empty?  # true
+puts empty.size   # 0
+puts empty.empty? # true
 
 empty << 23
-puts empty.size    # 1
-puts empty.empty?  # false
+puts empty.size   # 1
+puts empty.empty? # false
 
 # empty << 3.14  # Error: no overload matches 'Array(Int32)#<<' with type Float64
 
 other = Array(Int32).new
-puts typeof(other)   # Array(Int32)
-puts other.size      # 0
-
+puts typeof(other) # Array(Int32)
+puts other.size    # 0

crystal/examples/arrays/filter.cr

@@ -1,7 +1,11 @@
 numbers = [10, 20, 7, 21, 5]
 puts numbers
-small = numbers.reject do |num| num > 10 end
+small = numbers.reject do |num|
+  num > 10
+end
 puts small
 
-big = numbers.reject! do |num| num < 10 end
+big = numbers.reject! do |num|
+  num < 10
+end
 puts big

crystal/examples/arrays/map.cr

@@ -1,8 +1,9 @@
-
 numbers = [2, -3, 4, -5]
 puts numbers
 
-doubles = numbers.map do |num| num*2 end
+doubles = numbers.map do |num|
+  num*2
+end
 puts doubles
 
 triples = numbers.map { |num| num*3 }

crystal/examples/assign_to_variable.cr

@@ -5,4 +5,3 @@ p! typeof(x)
 x = 1
 p! x
 p! typeof(x)
-

crystal/examples/backtick.cr

@@ -1,6 +1,6 @@
 result = `ls -l`
 if $?.success?
-    puts result
+  puts result
 else
-    puts "Failure"
-end
+  puts "Failure"
+end

crystal/examples/capture.cr

@@ -1,4 +1,3 @@
-
 output, error, exit_code = capture("ls", ["-l", "-a"])
 if exit_code == 0
   puts output
@@ -7,15 +6,14 @@ else
 end
 puts exit_code
 
-
 def capture(cmd, params)
   process = Process.new(cmd, params,
     output: Process::Redirect::Pipe,
     error: Process::Redirect::Pipe,
-    )
+  )
 
   output = process.output.gets_to_end
-  error  = process.error.gets_to_end
+  error = process.error.gets_to_end
 
   res = process.wait
 

crystal/examples/capture2.cr

@@ -1,12 +1,11 @@
 output, error, exit_code = capture("ls", ["-l", "-a"])
 if exit_code == 0
-    puts output
+  puts output
 else
-    puts error
+  puts error
 end
 puts exit_code
 
-
 def capture(cmd, params)
   stdout = IO::Memory.new
   stderr = IO::Memory.new

crystal/examples/case.cr

@@ -1,18 +1,17 @@
 if ARGV.size != 1
-   puts "Usage: case.cr DIRECTION"
-   exit -1
+  puts "Usage: case.cr DIRECTION"
+  exit -1
 end
 direction = ARGV[0]
 
-
 case direction
-  when "forward"
-    puts "go on"
-  when "bacward"
-    puts "go back"
-  when "left", "right"
-    puts "go #{direction}"
-  else
-    puts "We don't know how to go '#{direction}'"
-    exit 0
+when "forward"
+  puts "go on"
+when "bacward"
+  puts "go back"
+when "left", "right"
+  puts "go #{direction}"
+else
+  puts "We don't know how to go '#{direction}'"
+  exit 0
 end

crystal/examples/case_when_on_type.cr

@@ -17,4 +17,3 @@ when Int32
   puts "int32"
   puts x.abs
 end
-

crystal/examples/catch_exception.cr

@@ -1,16 +1,15 @@
-
 filenames = ["README.md", "Other file", "crystal.json"]
-filenames.each {|file|
-    begin
-        result = process(file)
-        puts result
-    rescue err
-        puts "Rescued! #{err.message}"
-        puts err.class # File::NotFoundError
-    end
+filenames.each { |file|
+  begin
+    result = process(file)
+    puts result
+  rescue err
+    puts "Rescued! #{err.message}"
+    puts err.class # File::NotFoundError
+  end
 }
 
 def process(filename)
-    content = File.read(filename)
-    return content.size
+  content = File.read(filename)
+  return content.size
 end