如何在Ruby中使用getoptlong类？
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我需要在Ruby中使用getoptlong类的帮助。我需要执行命令prog_name.ruby -u -i -s filename。到目前为止，我只能使用prog_name.ruby -u filename -i filename -s filename执行它。
这是我的getoptlong代码：
require \'getoptlong\'
class CommonLog
parser = GetoptLong.new
parser.set_options([\"-h\", \"--help\", GetoptLong::NO_ARGUMENT],
[\"-u\", \"--url\", GetoptLong::NO_ARGUMENT],
[\"-i\", \"--ip\", GetoptLong::NO_ARGUMENT],
[\"-s\", \"--stat\", GetoptLong::NO_ARGUMENT])
begin
begin
opt,arg = parser.get_option
break if not opt
case opt
when \"-h\" || \"--help\"
puts \"Usage: -u filename\"
puts \"Usage: -i filename\"
puts \"Usage: -s filename\"
exit
when \"-u\" || \"--url\"
log = CommonLog.new(ARGV[0])
log.urlReport
when \"-i\" || \"--ip\"
log = CommonLog.new(ARGV[0])
log.ipReport
when \"-s\" || \"--stat\"
log = CommonLog.new(ARGV[0])
log.statReport
end
rescue => err
puts \"#{err.class()}: #{err.message}\"
puts \"Usage: -h -u -i -s filename\"
exit
end
end while 1
if ARGV[0] == nil || ARGV.size != 1
puts \"invalid! option and filename required\"
puts \"usage: -h -u -i -s filename\"
end
没有找到相关结果
已邀请:
2 个回复
响摔衅幸
，否则可以使用。 GetOptLong功能非常强大，但是，尽管我已经使用了几次，但每次仍然需要审阅文档。 如果您想要更多的功能，并且使用接口比GetOptLong更容易使用，请查看Ruby的ѭ4。您需要更好地制定逻辑，但这是转换代码的快速通道。我不得不为CommonLog gem设置一个类，因为我不使用它。重要的事情遵循从提取日志的行：require \'optparse\' class CommonLog def initialize(*args); end def urlReport(); puts \"running urlReport()\"; end def ipReport(); puts \"running ipReport()\"; end def statReport(arg); puts \"running statReport(#{arg})\"; end end log = CommonLog.new(ARGV[0]) OptionParser.new { |opts| opts.banner = \"Usage: #{File.basename($0)} -u -i -s filename\" opts.on( \'-u\', \'--[no-]url\', \'some short text describing URL\') do log.urlReport() end opts.on(\'-i\', \'--[no-]ip\', \'some short text describing IP\') do log.ipReport() end opts.on(\'-s\', \'--stat FILENAME\', \'some short text describing STAT\') do |arg| log.statReport(arg) end }.parse!盘绕了。研究ARGV和阵列的工作原理。通常，对于为零，将不再有参数，因此就足够了。降女陷费券
require \'getoptlong\' # don\'t pollute CommonLog with this include CommonLog # if this is the startup module if __FILE__ == $0 then # Check to ensure there are arguments if ARGV.size < 1 puts \"invalid! option and filename required\" puts \"usage: -h -u -i -s filename\" end # set up parser and get the options parser_opts=GetoptLong.new( [\"--help\", \"-h\", GetoptLong::NO_ARGUMENT], [\"--url\", \"-u\", GetoptLong::NO_ARGUMENT], [\"--ip\", \"-i\", \"--ip\", GetoptLong::NO_ARGUMENT], [\"--stat\", \"-s\", GetoptLong::NO_ARGUMENT] ) parser_opts.each do |opt,arg| begin # this is for the exception processing case opt when \"--help\" #only the first option is returned read ruby doc on #each puts \"Usage: -u filename\" puts \"Usage: -i filename\" puts \"Usage: -s filename\" exit when \"--url\" #only the first option is returned log = CommonLog.new(ARGV[0]) log.urlReport when \"--ip\" #only the first option is returned log = CommonLog.new(ARGV[0]) log.ipReport when \"--stat\" #only the first option is returned log = CommonLog.new(ARGV[0]) log.statReport else # this should not be used puts \"unexpected option %s\"%opt puts \"Usage: -h -u -i -s filename\" end rescue Exception => err #rescuing an unexpected Exception puts \"#{err.class()}: #{err.message}\" puts \"Usage: -h -u -i -s filename\" Kernel.exit end end end