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Trollop 1.15 released

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September 30, 2009 6:59pm

I’ve just released Trollop 1.15, which fixes an irritating misfeature pointed out by Rafael Sevilla: when Trollop runs out of characters when it’s generating short option names, e.g. when you have a lot of options, it shouldn’t throw an exception and die. It should just continue peacefully.

Trollop’s reign of domination continues!

Will Fitzgerald

March 31, 2010 1:53pm

The float option doesn’t (yet) handle scientific notation, but it could with this diff from the current Git repo. It adds an optional part to the FLOAT_RE, and a test at the end. Thanks for Trollop, by the way; it is the best command line parser I’ve ever used:

diff --git a/lib/trollop.rb b/lib/trollop.rb
index 8c8818f..02d4c34 100644
--- a/lib/trollop.rb
+++ b/lib/trollop.rb
@@ -22,7 +22,7 @@ class HelpNeeded  StandardError; end
  class VersionNeeded  StandardError; end

  ## Regex for floating point numbers
-FLOAT_RE = /^-?((\d+(\.\d+)?)|(\.\d+))$/
+FLOAT_RE = /^-?((\d+(\.\d+)?)|(\.\d+))([eE][-+]?[\d]+)?$/

  ## Regex for parameters
  PARAM_RE = /^-(-|\.$|[^\d\.])/
diff --git a/test/test_trollop.rb b/test/test_trollop.rb
index ed07a3c..fadfb2a 100644
--- a/test/test_trollop.rb
+++ b/test/test_trollop.rb
@@ -97,6 +97,8 @@ class Trollop  ::Test::Unit::TestCase
         assert_equal 2.41, opts["argsf"]
         assert_nothing_raised { opts = @p.parse(%w(--argsf 2)) }
         assert_equal 2, opts["argsf"]
+        assert_nothing_raised { opts = @p.parse(%w(--argsf 1.0e-2)) }
+        assert_equal 1.0e-2, opts["argsf"]
         assert_raise(CommandlineError) { @p.parse(%w(--argsf hello)) }

         # single arg: date

— Will

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William Morgan

April 20, 2010 2:44am

The float option doesn’t (yet) handle scientific notation, but it could with this diff from the current Git repo. It adds an optional part to the FLOAT_RE, and a test at the end.
Newest version is 1.16.2 and this is in it. Thanks again!

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Trollop 1.15 released

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