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* ext/iconv/charset_alias.rb: parse config.charset_alias file directly.

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@9357 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2005-10-08 10:15:50 +00:00
parent 04bdcf8432
commit 2b291d3806
3 changed files with 41 additions and 13 deletions
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46
ext/iconv/charset_alias.rb
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@ -1,10 +1,11 @@
#! /usr/bin/ruby
require 'rbconfig'
require 'optparse'
# http://www.ctan.org/tex-archive/macros/texinfo/texinfo/intl/config.charset
# Fri, 30 May 2003 00:09:00 GMT'
OS = Config::CONFIG["target"]
OS = Config::CONFIG["target_os"]
SHELL = Config::CONFIG['SHELL']
class Hash::Ordered < Hash
@ -26,12 +27,26 @@ end
def charset_alias(config_charset, mapfile, target = OS)
map = Hash::Ordered.new
comments = []
IO.foreach("|#{SHELL} #{config_charset} #{target}") do |list|
next comments << list if /^\#/ =~ list
next unless /^(\S+)\s+(\S+)$/ =~ list
sys, can = $1, $2
can.downcase!
map[can] = sys
match = false
open(config_charset) do |input|
input.find {|line| /^case "\$os" in/ =~ line} or return
input.find {|line|
/^\s*([-\w\*]+(?:\s*\|\s*[-\w\*]+)*)(?=\))/ =~ line and
$&.split('|').any? {|pattern| File.fnmatch?(pattern.strip, target)}
} or return
input.find do |line|
case line
when /^\s*echo "(?:\$\w+\.)?([-\w*]+)\s+([-\w]+)"/
sys, can = $1, $2
can.downcase!
map[can] = sys
false
when /^\s*;;/
true
else
false
end
end
end
case target
when /linux|-gnu/
@ -53,7 +68,7 @@ def charset_alias(config_charset, mapfile, target = OS)
st.delete_if {|sys, i| i == 1}.empty?
st.keys.each {|sys| st[sys] = nil}
st.default = nil
open(mapfile, "w") do |f|
writer = proc do |f|
f.puts("require 'iconv.so'")
f.puts
f.puts(comments)
@ -71,7 +86,18 @@ def charset_alias(config_charset, mapfile, target = OS)
end
f.puts("end")
end
if mapfile
open(mapfile, "w", &writer)
else
writer[STDOUT]
end
end
(2..3) === ARGV.size or abort "usage: #$0 config.status map.rb [target]"
charset_alias(*ARGV)
target = OS
opt = nil
ARGV.options do |opt|
opt.banner << " config.status map.rb"
opt.on("--target OS") {|t| target = t}
opt.parse! and (1..2) === ARGV.size
end or abort opt.to_s
charset_alias(ARGV[0], ARGV[1], target)