102 lines
2.2 KiB
Ruby
102 lines
2.2 KiB
Ruby
# This file is interpreted by $(BASERUBY) and miniruby.
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# $(BASERUBY) is used for miniprelude.c.
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# miniruby is used for prelude.c.
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# Since $(BASERUBY) may be older than Ruby 1.9,
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# Ruby 1.9 feature should not be used.
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preludes = ARGV.dup
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outfile = preludes.pop
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C_ESC = {
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"\\" => "\\\\",
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'"' => '\"',
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"\n" => '\n',
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}
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0x00.upto(0x1f) {|ch| C_ESC[[ch].pack("C")] ||= "\\x%02x" % ch }
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0x7f.upto(0xff) {|ch| C_ESC[[ch].pack("C")] = "\\x%02x" % ch }
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C_ESC_PAT = Regexp.union(*C_ESC.keys)
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def c_esc(str)
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'"' + str.gsub(C_ESC_PAT) { C_ESC[$&] } + '"'
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end
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mkconf = nil
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setup_ruby_prefix = nil
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lines_list = preludes.map {|filename|
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lines = []
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need_ruby_prefix = false
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File.readlines(filename).each {|line|
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line.gsub!(/RbConfig::CONFIG\["(\w+)"\]/) {
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unless mkconf
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require 'rbconfig'
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mkconf = RbConfig::MAKEFILE_CONFIG.merge('prefix'=>'#{ruby_prefix}')
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exlen = $:.grep(%r{\A/}).last.length - RbConfig::CONFIG["prefix"].length
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setup_ruby_prefix = "ruby_prefix = $:.grep(%r{\\A/}).last[0..#{-exlen-1}]\n"
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end
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if RbConfig::MAKEFILE_CONFIG.has_key? $1
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val = RbConfig.expand("$(#$1)", mkconf)
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need_ruby_prefix = true if /\A\#{ruby_prefix\}/ =~ val
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c_esc(val)
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else
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$&
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end
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}
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lines << c_esc(line)
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}
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setup_lines = []
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if need_ruby_prefix
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setup_lines << c_esc(setup_ruby_prefix)
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end
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[setup_lines, lines]
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}
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open(outfile, 'w'){|f|
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f.puts <<'EOS__'
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#include "ruby/ruby.h"
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#include "vm_core.h"
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EOS__
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preludes.zip(lines_list).each_with_index {|(prelude, (setup_lines, lines)), i|
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f.puts <<EOS__
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static const char prelude_name#{i}[] = "#{File.basename(prelude)}";
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static const char prelude_code#{i}[] =
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#{(setup_lines+lines).join("\n")}
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;
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EOS__
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}
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f.puts <<'EOS__'
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void
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Init_prelude(void)
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{
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EOS__
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lines_list.each_with_index {|(setup_lines, lines), i|
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f.puts <<EOS__
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rb_iseq_eval(rb_iseq_compile(
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rb_str_new(prelude_code#{i}, sizeof(prelude_code#{i}) - 1),
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rb_str_new(prelude_name#{i}, sizeof(prelude_name#{i}) - 1),
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INT2FIX(#{1-setup_lines.length})));
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EOS__
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}
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f.puts <<EOS__
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#if 0
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EOS__
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preludes.length.times {|i|
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f.puts <<EOS__
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puts(prelude_code#{i});
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EOS__
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}
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f.puts <<EOS__
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#endif
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EOS__
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f.puts <<'EOS__'
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}
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EOS__
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}
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