diff options
| -rw-r--r-- | lib/puppet/parser/functions/is_integer.rb | 26 | ||||
| -rw-r--r-- | lib/puppet/parser/functions/is_numeric.rb | 50 | ||||
| -rw-r--r-- | spec/unit/puppet/parser/functions/is_integer_spec.rb | 35 | ||||
| -rw-r--r-- | spec/unit/puppet/parser/functions/is_numeric_spec.rb | 80 |
4 files changed, 184 insertions, 7 deletions
diff --git a/lib/puppet/parser/functions/is_integer.rb b/lib/puppet/parser/functions/is_integer.rb index 6b29e98..3c4874e 100644 --- a/lib/puppet/parser/functions/is_integer.rb +++ b/lib/puppet/parser/functions/is_integer.rb @@ -4,7 +4,10 @@ module Puppet::Parser::Functions newfunction(:is_integer, :type => :rvalue, :doc => <<-EOS -Returns true if the variable returned to this string is an integer. +Returns true if the variable passed to this function is an integer. + +If the variable is a string it has to be in the correct format of an +integer. EOS ) do |arguments| @@ -15,12 +18,25 @@ Returns true if the variable returned to this string is an integer. value = arguments[0] - if value != value.to_i.to_s and !value.is_a? Fixnum then - return false - else + # Regex is taken from the lexer of puppet + # puppet/pops/parser/lexer.rb but modified to match also + # negative values and disallow numbers prefixed with multiple + # 0's + # + # TODO these parameter should be a constant but I'm not sure + # if there is no risk to declare it inside of the module + # Puppet::Parser::Functions + + # Integer numbers like + # -1234568981273 + # 47291 + numeric = %r{^-?(?:(?:[1-9]\d*)|0)$} + + if value.is_a? Integer or (value.is_a? String and value.match numeric) return true + else + return false end - end end diff --git a/lib/puppet/parser/functions/is_numeric.rb b/lib/puppet/parser/functions/is_numeric.rb index abf0321..f2417f3 100644 --- a/lib/puppet/parser/functions/is_numeric.rb +++ b/lib/puppet/parser/functions/is_numeric.rb @@ -5,6 +5,20 @@ module Puppet::Parser::Functions newfunction(:is_numeric, :type => :rvalue, :doc => <<-EOS Returns true if the variable passed to this function is a number. + +The function recognizes only integer and float but not hex or octal +numbers (for now) until a decision is made how to handle these types. + +The parameter can be in the native format or given as string representation +of a number. + +Valid examples: + + 77435 + 10e-12 + -8475 + 0.2343 + -23.561e3 EOS ) do |arguments| @@ -15,12 +29,44 @@ Returns true if the variable passed to this function is a number. value = arguments[0] - if value == value.to_f.to_s or value == value.to_i.to_s or value.is_a? Numeric then + # Regex is taken from the lexer of puppet + # puppet/pops/parser/lexer.rb but modified to match also + # negative values and disallow invalid octal numbers or + # numbers prefixed with multiple 0's (except in hex numbers) + # + # TODO these parameters should be constants but I'm not sure + # if there is no risk to declare them inside of the module + # Puppet::Parser::Functions + + # TODO decide if this should be used + # HEX numbers like + # 0xaa230F + # 0X1234009C + # 0x0012 + # -12FcD + #numeric_hex = %r{^-?0[xX][0-9A-Fa-f]+$} + + # TODO decide if this should be used + # OCTAL numbers like + # 01234567 + # -045372 + #numeric_oct = %r{^-?0[1-7][0-7]*$} + + # Integer/Float numbers like + # -0.1234568981273 + # 47291 + # 42.12345e-12 + numeric = %r{^-?(?:(?:[1-9]\d*)|0)(?:\.\d+)?(?:[eE]-?\d+)?$} + + if value.is_a? Numeric or (value.is_a? String and ( + value.match(numeric) #or + # value.match(numeric_hex) or + # value.match(numeric_oct) + )) return true else return false end - end end diff --git a/spec/unit/puppet/parser/functions/is_integer_spec.rb b/spec/unit/puppet/parser/functions/is_integer_spec.rb index 4335795..24141cc 100644 --- a/spec/unit/puppet/parser/functions/is_integer_spec.rb +++ b/spec/unit/puppet/parser/functions/is_integer_spec.rb @@ -17,6 +17,11 @@ describe "the is_integer function" do result.should(eq(true)) end + it "should return true if a negative integer" do + result = scope.function_is_integer(["-7"]) + result.should(eq(true)) + end + it "should return false if a float" do result = scope.function_is_integer(["3.2"]) result.should(eq(false)) @@ -31,4 +36,34 @@ describe "the is_integer function" do result = scope.function_is_integer([3*2]) result.should(eq(true)) end + + it "should return false if an array" do + result = scope.function_is_numeric([["asdf"]]) + result.should(eq(false)) + end + + it "should return false if a hash" do + result = scope.function_is_numeric([{"asdf" => false}]) + result.should(eq(false)) + end + + it "should return false if a boolean" do + result = scope.function_is_numeric([true]) + result.should(eq(false)) + end + + it "should return false if a whitespace is in the string" do + result = scope.function_is_numeric([" -1324"]) + result.should(eq(false)) + end + + it "should return false if it is zero prefixed" do + result = scope.function_is_numeric(["0001234"]) + result.should(eq(false)) + end + + it "should return false if it is wrapped inside an array" do + result = scope.function_is_numeric([[1234]]) + result.should(eq(false)) + end end diff --git a/spec/unit/puppet/parser/functions/is_numeric_spec.rb b/spec/unit/puppet/parser/functions/is_numeric_spec.rb index d7440fb..1df1497 100644 --- a/spec/unit/puppet/parser/functions/is_numeric_spec.rb +++ b/spec/unit/puppet/parser/functions/is_numeric_spec.rb @@ -36,4 +36,84 @@ describe "the is_numeric function" do result = scope.function_is_numeric(["asdf"]) result.should(eq(false)) end + + it "should return false if an array" do + result = scope.function_is_numeric([["asdf"]]) + result.should(eq(false)) + end + + it "should return false if an array of integers" do + result = scope.function_is_numeric([[1,2,3,4]]) + result.should(eq(false)) + end + + it "should return false if a hash" do + result = scope.function_is_numeric([{"asdf" => false}]) + result.should(eq(false)) + end + + it "should return false if a hash with numbers in it" do + result = scope.function_is_numeric([{1 => 2}]) + result.should(eq(false)) + end + + it "should return false if a boolean" do + result = scope.function_is_numeric([true]) + result.should(eq(false)) + end + + it "should return true if a negative float with exponent" do + result = scope.function_is_numeric(["-342.2315e-12"]) + result.should(eq(true)) + end + + it "should return false if a negative integer with whitespaces before/after the dash" do + result = scope.function_is_numeric([" - 751"]) + result.should(eq(false)) + end + +# it "should return true if a hexadecimal" do +# result = scope.function_is_numeric(["0x52F8c"]) +# result.should(eq(true)) +# end +# +# it "should return true if a hexadecimal with uppercase 0X prefix" do +# result = scope.function_is_numeric(["0X52F8c"]) +# result.should(eq(true)) +# end +# +# it "should return false if a hexadecimal without a prefix" do +# result = scope.function_is_numeric(["52F8c"]) +# result.should(eq(false)) +# end +# +# it "should return true if a octal" do +# result = scope.function_is_numeric(["0751"]) +# result.should(eq(true)) +# end +# +# it "should return true if a negative hexadecimal" do +# result = scope.function_is_numeric(["-0x52F8c"]) +# result.should(eq(true)) +# end +# +# it "should return true if a negative octal" do +# result = scope.function_is_numeric(["-0751"]) +# result.should(eq(true)) +# end +# +# it "should return false if a negative octal with whitespaces before/after the dash" do +# result = scope.function_is_numeric([" - 0751"]) +# result.should(eq(false)) +# end +# +# it "should return false if a bad hexadecimal" do +# result = scope.function_is_numeric(["0x23d7g"]) +# result.should(eq(false)) +# end +# +# it "should return false if a bad octal" do +# result = scope.function_is_numeric(["0287"]) +# result.should(eq(false)) +# end end |