create sub-parsers using case instead of Hash

This commit is contained in:
kojix2 2020-09-23 21:32:11 +09:00
parent a33b0e7628
commit 0389f7fc5c

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@ -6,12 +6,10 @@ require_relative 'params'
module Uplot
class Command
class Parser
attr_reader :command, :params, :main_parser, :sub_parsers,
attr_reader :command, :params,
:delimiter, :transpose, :headers, :output, :count, :fmt, :debug
def initialize
@sub_parsers = create_sub_parsers
@main_parser = create_main_parser
@command = nil
@params = Params.new
@ -80,113 +78,8 @@ module Uplot
end
end
def create_sub_parsers
parsers = Hash.new do |h, k|
h[k] = create_default_parser do |parser|
parser.banner = <<~MSG
Usage: uplot #{k} [options]
Options:
MSG
end
end
parsers[:barplot] = \
parsers[:bar]
.on('--symbol VAL', String) do |v|
params.symbol = v
end
.on('--xscale VAL', String) do |v|
params.xscale = v
end
.on('--count', TrueClass) do |v|
@count = v
end
parsers[:count] = \
parsers[:c] # barplot -c
.on('--symbol VAL', String) do |v|
params.symbol = v
end
parsers[:histogram] = \
parsers[:hist]
.on('-n', '--nbins VAL', Numeric) do |v|
params.nbins = v
end
.on('--closed VAL', String) do |v|
params.closed = v
end
.on('--symbol VAL', String) do |v|
params.symbol = v
end
parsers[:lineplot] = \
parsers[:line]
.on('--canvas VAL', String) do |v|
params.canvas = v
end
.on('--xlim VAL', Array) do |v|
params.xlim = v.take(2)
end
.on('--ylim VAL', Array) do |v|
params.ylim = v.take(2)
end
parsers[:lineplots] = \
parsers[:lines]
.on('--canvas VAL', String) do |v|
params.canvas = v
end
.on('--xlim VAL', Array) do |v|
params.xlim = v.take(2)
end
.on('--ylim VAL', Array) do |v|
params.ylim = v.take(2)
end
parsers[:scatter] = \
parsers[:s]
.on('--canvas VAL', String) do |v|
params.canvas = v
end
.on('--xlim VAL', Array) do |v|
params.xlim = v.take(2)
end
.on('--ylim VAL', Array) do |v|
params.ylim = v.take(2)
end
parsers[:density] = \
parsers[:d]
.on('--grid', TrueClass) do |v|
params.grid = v
end
.on('--xlim VAL', Array) do |v|
params.xlim = v.take(2)
end
.on('--ylim VAL', Array) do |v|
params.ylim = v.take(2)
end
parsers[:boxplot] = \
parsers[:box]
.on('--xlim VAL', Array) do |v|
params.xlim = v.take(2)
end
parsers[:colors]
.on('-n', '--names', TrueClass) do |v|
@color_names = v
end
# Preventing the generation of new sub-commands
parsers.default = nil
parsers
end
def create_main_parser
create_default_parser do |main_parser|
def main_parser
@main_parser ||= create_default_parser do |main_parser|
# Usage and help messages
main_parser.banner = \
<<~MSG
@ -196,13 +89,114 @@ module Uplot
Usage: uplot <command> [options]
Command:
#{sub_parsers.keys.join("\n ")}
a
Options:
MSG
end
end
def sub_parser
@sub_parser ||= create_default_parser do |parser|
parser.banner = <<~MSG
Usage: uplot #{command} [options]
Options:
MSG
case command
when nil
warn main_parser.help
exit 1
when :barplot, :bar
parser.on('--symbol VAL', String) do |v|
params.symbol = v
end
parser.on('--xscale VAL', String) do |v|
params.xscale = v
end
parser.on('--count', TrueClass) do |v|
@count = v
end
when :count, :c
parser.on('--symbol VAL', String) do |v|
params.symbol = v
end
when :histogram, :hist
parser.on('-n', '--nbins VAL', Numeric) do |v|
params.nbins = v
end
parser.on('--closed VAL', String) do |v|
params.closed = v
end
parser.on('--symbol VAL', String) do |v|
params.symbol = v
end
when :lineplot, :line
parser.on('--canvas VAL', String) do |v|
params.canvas = v
end
parser.on('--xlim VAL', Array) do |v|
params.xlim = v.take(2)
end
parser.on('--ylim VAL', Array) do |v|
params.ylim = v.take(2)
end
when :lineplots, :lines
parser.on('--canvas VAL', String) do |v|
params.canvas = v
end
parser.on('--xlim VAL', Array) do |v|
params.xlim = v.take(2)
end
parser.on('--ylim VAL', Array) do |v|
params.ylim = v.take(2)
end
when :scatter, :s
parser.on('--canvas VAL', String) do |v|
params.canvas = v
end
parser.on('--xlim VAL', Array) do |v|
params.xlim = v.take(2)
end
parser.on('--ylim VAL', Array) do |v|
params.ylim = v.take(2)
end
when :density, :d
parser.on('--grid', TrueClass) do |v|
params.grid = v
end
parser.on('--xlim VAL', Array) do |v|
params.xlim = v.take(2)
end
parser.on('--ylim VAL', Array) do |v|
params.ylim = v.take(2)
end
when :boxplot, :box
parser.on('--xlim VAL', Array) do |v|
params.xlim = v.take(2)
end
when :colors
parser.on('-n', '--names', TrueClass) do |v|
@color_names = v
end
else
warn "uplot: unrecognized command '#{command}'"
exit 1
end
end
end
def parse_options(argv = ARGV)
begin
main_parser.order!(argv)
@ -213,18 +207,8 @@ module Uplot
@command = argv.shift&.to_sym
unless sub_parsers.key?(command)
if command.nil?
warn main_parser.help
else
warn "uplot: unrecognized command '#{command}'"
end
exit 1
end
parser = sub_parsers[command]
begin
parser.parse!(argv) unless argv.empty?
sub_parser.parse!(argv)
rescue OptionParser::ParseError => e
warn "uplot: #{e.message}"
exit 1