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6 changed files with 225 additions and 184 deletions

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@ -1,37 +1,35 @@
PATH
remote: .
specs:
yawpa (1.1.0)
yawpa (1.2.0)
GEM
remote: https://rubygems.org/
specs:
diff-lcs (1.2.5)
diff-lcs (1.3)
docile (1.1.5)
json (1.8.1)
multi_json (1.10.1)
rake (10.3.2)
rdoc (4.1.1)
json (~> 1.4)
redcarpet (3.1.2)
rspec (3.0.0)
rspec-core (~> 3.0.0)
rspec-expectations (~> 3.0.0)
rspec-mocks (~> 3.0.0)
rspec-core (3.0.2)
rspec-support (~> 3.0.0)
rspec-expectations (3.0.2)
json (2.1.0)
rake (12.0.0)
rdoc (5.1.0)
rspec (3.6.0)
rspec-core (~> 3.6.0)
rspec-expectations (~> 3.6.0)
rspec-mocks (~> 3.6.0)
rspec-core (3.6.0)
rspec-support (~> 3.6.0)
rspec-expectations (3.6.0)
diff-lcs (>= 1.2.0, < 2.0)
rspec-support (~> 3.0.0)
rspec-mocks (3.0.2)
rspec-support (~> 3.0.0)
rspec-support (3.0.2)
simplecov (0.8.2)
rspec-support (~> 3.6.0)
rspec-mocks (3.6.0)
diff-lcs (>= 1.2.0, < 2.0)
rspec-support (~> 3.6.0)
rspec-support (3.6.0)
simplecov (0.15.0)
docile (~> 1.1.0)
multi_json
simplecov-html (~> 0.8.0)
simplecov-html (0.8.0)
yard (0.8.7.4)
json (>= 1.8, < 3)
simplecov-html (~> 0.10.0)
simplecov-html (0.10.2)
yard (0.9.9)
PLATFORMS
ruby
@ -39,8 +37,10 @@ PLATFORMS
DEPENDENCIES
rake
rdoc
redcarpet
rspec
simplecov
yard
yawpa!
BUNDLED WITH
1.10.6

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@ -109,6 +109,10 @@ options that were not processed after observing a non-option parameters).
## Release Notes
### v1.2.0
- Always return non-frozen strings
### v1.1.0
- Add `:boolean` option flag.

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@ -13,16 +13,19 @@ require "yawpa/version"
# - Options can be defined with a range specifying the allowed number of
# parameters
module Yawpa
# Exception class raised when an unknown option is observed.
class ArgumentParsingException < Exception; end
class << self
# Parse input parameters looking for options according to rules given in
# flags.
# Syntax:
# opts, args = parse(params, options, flags = {})
#
# An ArgumentParsingException will be raised if an unknown option is observed
# or insufficient arguments are present for an option.
# An ArgumentParsingException will be raised if an unknown option is
# observed or insufficient arguments are present for an option.
#
# Example +options+:
#
@ -50,11 +53,12 @@ module Yawpa
# +{boolean: true}+)
# Hash::
# Possible option flags:
# - +:short+: specify a short option letter to associate with the long option
# - +:short+: specify a short option letter to associate with the long
# option
# - +:nargs+: specify an exact number or range of possible numbers of
# arguments to the option
# - +:boolean+: if true, specify that the option is a toggleable boolean
# option and allow a prefix of "no" to turn it off.
# - +:boolean+: if true, specify that the option is a toggleable
# boolean option and allow a prefix of "no" to turn it off.
# @param flags [Hash]
# Optional flags dictating how {.parse} should do its job.
# @option flags [Boolean] :posix_order
@ -71,7 +75,7 @@ module Yawpa
# parameters (if +:posix_order+ was passed in +flags+, this array might
# contain further options that were not processed after observing a
# non-option parameters).
def self.parse(params, options, flags = {})
def parse(params, options, flags = {})
options = _massage_options(options)
opts = {}
args = []
@ -114,16 +118,21 @@ module Yawpa
opts[param_key] = true
else
opts[param_key] = []
i += _gather(opt_config[:nargs], i + 1, params, short_flags[short_idx + 1, short_flags.length], param_key, opts[param_key])
i += _gather(opt_config[:nargs],
i + 1,
params,
short_flags[short_idx + 1, short_flags.length],
param_key,
opts[param_key])
break
end
short_idx += 1
end
elsif flags[:posix_order]
args = params[i, params.length]
args = params[i, params.length].map(&:dup)
break
else
args << params[i]
args << params[i].dup
end
i += 1
end
@ -138,8 +147,10 @@ module Yawpa
return [opts, args]
end
private
# Internal helper method to gather arguments for an option
def self._gather(nargs, start_idx, params, initial, param_key, result)
def _gather(nargs, start_idx, params, initial, param_key, result)
n_gathered = 0
if initial and initial != ''
result << initial
@ -150,7 +161,7 @@ module Yawpa
while n_gathered < nargs.last and
index < params.length and
params[index][0] != '-' do
result << params[index]
result << params[index].dup
index += 1
num_indices_used += 1
n_gathered += 1
@ -160,10 +171,9 @@ module Yawpa
end
num_indices_used
end
private_class_method :_gather
# Internal helper method to format the options in a consistent format
def self._massage_options(options)
def _massage_options(options)
{}.tap do |newopts|
options.each_pair do |k, v|
v = {} if v.nil?
@ -171,21 +181,22 @@ module Yawpa
newkey = k.to_s
newopts[newkey] = {key: k}
nargs = v[:nargs] || 0
nargs = (nargs..nargs) if nargs.is_a?(Fixnum)
nargs = (nargs..nargs) if nargs.is_a?(Integer)
newopts[newkey][:nargs] = nargs
newopts[newkey][:short] = v[:short] || ''
newopts[newkey][:boolean] = v[:boolean]
end
end
end
private_class_method :_massage_options
# Internal helper method to find an option configuration by short name
def self._find_opt_config_by_short_name(options, short_name)
def _find_opt_config_by_short_name(options, short_name)
options.each_pair do |k, v|
return v if v[:short] == short_name
end
nil
end
private_class_method :_find_opt_config_by_short_name
end
end

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@ -1,4 +1,4 @@
module Yawpa
# gem version
VERSION = "1.1.0"
VERSION = "1.3.0"
end

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@ -11,7 +11,7 @@ describe Yawpa do
it "raises an exception when an invalid option is passed" do
options = { }
params = ['one', '--option', 'two']
expect { Yawpa.parse(params, options) }.to raise_error
expect { Yawpa.parse(params, options) }.to raise_error(Yawpa::ArgumentParsingException, /Unknown option/)
end
it "returns boolean options which are set" do
@ -53,7 +53,7 @@ describe Yawpa do
opt: {nargs: 2},
}
params = ['--opt', 'val']
expect { Yawpa.parse(params, options) }.to raise_error
expect { Yawpa.parse(params, options) }.to raise_error(Yawpa::ArgumentParsingException, /Not enough arguments supplied/)
end
it "uses --opt=val syntax for an option's value" do
@ -179,7 +179,7 @@ describe Yawpa do
a: {short: 'a'},
}
params = ['-ab']
expect { Yawpa.parse(params, options) }.to raise_error
expect { Yawpa.parse(params, options) }.to raise_error(Yawpa::ArgumentParsingException, /Unknown option/)
end
it "raises an error when not enough arguments are given to short option" do
@ -187,7 +187,7 @@ describe Yawpa do
a: {nargs: 1, short: 'a'},
}
params = ['-a']
expect { Yawpa.parse(params, options) }.to raise_error
expect { Yawpa.parse(params, options) }.to raise_error(Yawpa::ArgumentParsingException, /Not enough arguments supplied/)
end
it "overwrites option value when short option used after long" do
@ -230,5 +230,32 @@ describe Yawpa do
expect(opts).to eq(push: false, pull: true)
expect(args).to eq(%w[arg])
end
it "returns non-frozen strings" do
options = {
o1: {nargs: 1, short: "1"},
o2: {nargs: 1, short: "2"},
o3: {nargs: 1, short: "3"},
o4: {nargs: 1, short: "4"},
}
arguments = %w[--o1=one --o2 two -3 three -4four arg].map(&:freeze)
opts, args = Yawpa.parse(arguments, options)
expect(opts[:o1].frozen?).to be_falsey
expect{opts[:o1].sub!(/./, '-')}.to_not raise_error
expect(opts[:o2].frozen?).to be_falsey
expect{opts[:o2].sub!(/./, '-')}.to_not raise_error
expect(opts[:o3].frozen?).to be_falsey
expect{opts[:o3].sub!(/./, '-')}.to_not raise_error
expect(opts[:o4].frozen?).to be_falsey
expect{opts[:o4].sub!(/./, '-')}.to_not raise_error
expect(args[0].frozen?).to be_falsey
expect{args[0].sub!(/./, '-')}.to_not raise_error
opts, args = Yawpa.parse(arguments, options, posix_order: true)
expect(args[0].frozen?).to be_falsey
expect{args[0].sub!(/./, '-')}.to_not raise_error
end
end
end

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@ -20,5 +20,4 @@ Gem::Specification.new do |gem|
gem.add_development_dependency "rake"
gem.add_development_dependency "rdoc"
gem.add_development_dependency "yard"
gem.add_development_dependency "redcarpet"
end