From: "NAKAMURA, Hiroshi" <nahi@...>
Date: 2004-02-24T10:41:03+09:00
Subject: Re: Appropriate use of camelCase

Chunky bacon!

> From: "David A. Black" <dblack@wobblini.net>
> Sent: Tuesday, February 24, 2004 9:51 AM

> > Following the 'instance variable capitalization' thread, I'm convinced 
> > that I should be trying to learn the Ruby idioms. Now I just need to 
> > learn what they are.
> 
> You can get at least a good rough idea from the source.  From
> /usr/local/lib/ruby/1.8:
> 
> $ ruby -ne 'print if /\b[a-z]+[A-Z]/.match($_)' `find -name "*.rb"` | wc -l
>     862
> $ ruby -ne 'print if /\b[a-z]+_[a-z]/.match($_)' `find -name "*.rb"`  | wc -l
>   19943

Hmm.

0$ egrep -r 'def +[a-z]+[A-Z]' lib
lib/cgi.rb:    def nOE_element_def(element, append = nil)
lib/cgi.rb:    def nO_element_def(element)
lib/parsearg.rb:def printUsageAndExit()
lib/parsearg.rb:def setParenthesis(ex, opt, c)
lib/parsearg.rb:def setOrAnd(ex, opt, c)
lib/parsearg.rb:def setExpression(ex, opt, op)
lib/parsearg.rb:def parseArgs(argc, nopt, single_opts, *opts)
lib/xmlrpc/create.rb:    def methodCall(name, *params)
lib/xmlrpc/create.rb:    def methodResponse(is_ret, *params)
lib/xmlrpc/httpserver.rb:    def writeTo(port)
lib/xmlrpc/parser.rb:    def removeChild(node)
lib/xmlrpc/parser.rb:    def childNodes
lib/xmlrpc/parser.rb:    def hasChildNodes
lib/xmlrpc/parser.rb:    def nodeType
lib/xmlrpc/parser.rb:    def nodeValue
lib/xmlrpc/parser.rb:    def nodeName
lib/xmlrpc/parser.rb:      def parseMethodResponse(str)
lib/xmlrpc/parser.rb:      def parseMethodCall(str)
lib/xmlrpc/parser.rb:      def removeWhitespacesAndComments(node)
lib/xmlrpc/parser.rb:      def nodeMustBe(node, name)
lib/xmlrpc/parser.rb:      def hasOnlyOneChild(node, name=nil)
lib/xmlrpc/parser.rb:      def dateTime(node)
lib/xmlrpc/parser.rb:      def methodResponse(node)
lib/xmlrpc/parser.rb:      def methodName(node)
lib/xmlrpc/parser.rb:      def methodCall(node)
lib/xmlrpc/parser.rb:      def parseMethodResponse(str)
lib/xmlrpc/parser.rb:      def parseMethodCall(str)
lib/xmlrpc/parser.rb:      def startElement(name, attrs=[])
lib/xmlrpc/parser.rb:      def endElement(name)
lib/xmlrpc/parser.rb:      def methodResponse_document(node)
lib/xmlrpc/parser.rb:      def methodCall_document(node)
lib/xmlrpc/parser.rb:      def createCleanedTree(str)
lib/xmlrpc/parser.rb:      def methodResponse_document(node)
lib/xmlrpc/parser.rb:      def methodCall_document(node)
lib/xmlrpc/parser.rb:      def createCleanedTree(str)
lib/rss/xmlparser.rb:           def startElement(name, attrs)
lib/rss/xmlparser.rb:           def endElement(name)
lib/rss/xmlparser.rb:           def xmlDecl(version, encoding, standalone)
lib/rdoc/markup/simple_markup/lines.rb:    def isBlank?
0$

(Only checked method name)

Back to the topic, here is the coding convention for library 
which is bundled with ruby.  [ruby-talk:62890], [ruby-talk:62894].

  * use two-space indentation, no TABs
  * use RDoc
  * shouldn't use camelCase for variable names and method names
  * use camelCase for class names and module names
  * use upper case separated by '_' for constants

Library users never want to mix under_scoer and camelCase.  So,

1. Overturn the matz and rubyists's way, then rewrite all libs, or
2. Please use under_score name for users.

Regards,
// NaHi