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* ext/socket/mkconstants.rb: use erb.

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@21225 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
akr 2009-01-01 06:28:34 +00:00
parent 212e90ce3a
commit 1c0e798d5c
2 changed files with 42 additions and 21 deletions
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4
ChangeLog
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@ -1,3 +1,7 @@
Thu Jan 1 15:27:07 2009 Tanaka Akira <akr@fsij.org>
* ext/socket/mkconstants.rb: use erb.
Thu Jan 1 15:07:56 2009 Tanaka Akira <akr@fsij.org>
* ext/socket/mkconstants.rb: add -o option.

59
ext/socket/mkconstants.rb
View file

@ -1,4 +1,5 @@
require 'optparse'
require 'erb'
opt = OptionParser.new
@ -12,43 +13,59 @@ opt.def_option('-o FILE', 'specify output file') {|filename|
opt_o = filename
}
$out = ''
def $out.puts(str="")
str += "\n" if /\n\z/ !~ str
self << str
C_ESC = {
"\\" => "\\\\",
'"' => '\"',
"\n" => '\n',
}
0x00.upto(0x1f) {|ch| C_ESC[[ch].pack("C")] ||= "\\%03o" % ch }
0x7f.upto(0xff) {|ch| C_ESC[[ch].pack("C")] = "\\%03o" % ch }
C_ESC_PAT = Regexp.union(*C_ESC.keys)
def c_str(str)
'"' + str.gsub(C_ESC_PAT, C_ESC) + '"'
end
opt.parse!
# workaround for NetBSD, OpenBSD and etc.
$out.puts("#define pseudo_AF_FTIP pseudo_AF_RTIP")
result = ''
# skip empty lines and comment lines
DATA.each_line do |s|
name, value = s.scan(/\S+/)
if name && name[0] != ?#
# workaround for NetBSD, OpenBSD and etc.
result << "#define pseudo_AF_FTIP pseudo_AF_RTIP\n"
def each_data
DATA.each_line {|s|
name, default_value = s.scan(/\S+/)
next unless name && name[0] != ?#
if name =~ /\AINADDR_/
define = "sock_define_uconst"
else
define = "sock_define_const"
end
$out.puts("#ifdef #{name}")
$out.puts(" #{define}(\"#{name}\", #{name});")
if value
$out.puts("#else")
$out.puts(" #{define}(\"#{name}\", #{value});")
end
$out.puts("#endif")
$out.puts
end
yield define, name, default_value
}
end
result << ERB.new(<<'EOS', nil, '%').result(binding)
% each_data {|define, name, default_value|
#ifdef <%=name%>
<%=define%>(<%=c_str name%>, <%=name%>);
% if default_value
#else
<%=define%>(<%=c_str name%>, <%=default_value%>);
% end
#endif
% }
EOS
if opt_o
File.open(opt_o, 'w') {|f|
f << $out
f << result
}
else
$stdout << $out
$stdout << result
end
__END__