зеркало из https://github.com/github/ruby.git
332 строки
6.0 KiB
Ruby
332 строки
6.0 KiB
Ruby
require 'optparse'
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require 'erb'
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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")] ||= "\\%03o" % ch }
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0x7f.upto(0xff) {|ch| C_ESC[[ch].pack("C")] = "\\%03o" % ch }
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C_ESC_PAT = Regexp.union(*C_ESC.keys)
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def c_str(str)
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'"' + str.gsub(C_ESC_PAT) {|s| C_ESC[s]} + '"'
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end
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opt = OptionParser.new
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opt.def_option('-h', 'help') {
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puts opt
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exit 0
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}
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opt_o = nil
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opt.def_option('-o FILE', 'specify output file') {|filename|
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opt_o = filename
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}
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opt_H = nil
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opt.def_option('-H FILE', 'specify output header file') {|filename|
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opt_H = filename
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}
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opt.parse!
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h = {}
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COMMENTS = {}
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DATA.each_line {|s|
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next if /\A\s*(\#|\z)/ =~ s
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name, default_value, comment = s.chomp.split(/\s+/, 3)
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default_value = nil if default_value == 'nil'
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if h.has_key? name
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warn "#{$.}: warning: duplicate name: #{name}"
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next
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end
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h[name] = default_value
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COMMENTS[name] = comment if comment
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}
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DEFS = h.to_a
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def each_const
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DEFS.each {|name, default_value|
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yield name, default_value
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}
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end
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def each_name(pat)
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DEFS.each {|name, default_value|
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next if pat !~ name
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yield name
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}
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end
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ERB.new(<<'EOS', nil, '%').def_method(Object, "gen_const_decls")
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% each_const {|name, default_value|
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#if !defined(<%=name%>)
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# if defined(HAVE_CONST_<%=name.upcase%>)
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# define <%=name%> <%=name%>
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%if default_value
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# else
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# define <%=name%> <%=default_value%>
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%end
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# endif
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#endif
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% }
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EOS
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ERB.new(<<'EOS', nil, '%').def_method(Object, "gen_const_defs")
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% each_const {|name, default_value|
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#if defined(<%=name%>)
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% if comment = COMMENTS[name]
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/* <%=comment%> */
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% end
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rb_define_const(mod, <%=c_str name.sub(/\A_*/, '')%>, INTEGER2NUM(<%=name%>));
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#endif
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% }
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EOS
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header_result = ERB.new(<<'EOS', nil, '%').result(binding)
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/* autogenerated file */
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<%= gen_const_decls %>
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EOS
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result = ERB.new(<<'EOS', nil, '%').result(binding)
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/* autogenerated file */
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#ifdef HAVE_LONG_LONG
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#define INTEGER2NUM(n) \
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(FIXNUM_MAX < (n) ? ULL2NUM(n) : \
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FIXNUM_MIN > (LONG_LONG)(n) ? LL2NUM(n) : \
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LONG2FIX(n))
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#else
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#define INTEGER2NUM(n) \
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(FIXNUM_MAX < (n) ? ULONG2NUM(n) : \
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FIXNUM_MIN > (long)(n) ? LONG2NUM(n) : \
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LONG2FIX(n))
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#endif
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static void
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init_constants(VALUE mod)
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{
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<%= gen_const_defs %>
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}
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EOS
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if opt_H
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File.open(opt_H, 'w') {|f|
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f << header_result
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}
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else
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result = header_result + result
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end
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if opt_o
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File.open(opt_o, 'w') {|f|
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f << result
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}
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else
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$stdout << result
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end
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__END__
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# SUSv4
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_SC_AIO_LISTIO_MAX
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_SC_AIO_MAX
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_SC_AIO_PRIO_DELTA_MAX
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_SC_ARG_MAX
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_SC_ATEXIT_MAX
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_SC_BC_BASE_MAX
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_SC_BC_DIM_MAX
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_SC_BC_SCALE_MAX
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_SC_BC_STRING_MAX
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_SC_CHILD_MAX
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_SC_CLK_TCK
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_SC_COLL_WEIGHTS_MAX
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_SC_DELAYTIMER_MAX
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_SC_EXPR_NEST_MAX
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_SC_HOST_NAME_MAX
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_SC_IOV_MAX
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_SC_LINE_MAX
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_SC_LOGIN_NAME_MAX
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_SC_NGROUPS_MAX
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_SC_GETGR_R_SIZE_MAX
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_SC_GETPW_R_SIZE_MAX
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_SC_MQ_OPEN_MAX
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_SC_MQ_PRIO_MAX
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_SC_OPEN_MAX
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_SC_ADVISORY_INFO
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_SC_BARRIERS
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_SC_ASYNCHRONOUS_IO
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_SC_CLOCK_SELECTION
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_SC_CPUTIME
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_SC_FSYNC
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_SC_IPV6
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_SC_JOB_CONTROL
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_SC_MAPPED_FILES
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_SC_MEMLOCK
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_SC_MEMLOCK_RANGE
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_SC_MEMORY_PROTECTION
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_SC_MESSAGE_PASSING
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_SC_MONOTONIC_CLOCK
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_SC_PRIORITIZED_IO
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_SC_PRIORITY_SCHEDULING
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_SC_RAW_SOCKETS
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_SC_READER_WRITER_LOCKS
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_SC_REALTIME_SIGNALS
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_SC_REGEXP
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_SC_SAVED_IDS
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_SC_SEMAPHORES
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_SC_SHARED_MEMORY_OBJECTS
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_SC_SHELL
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_SC_SPAWN
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_SC_SPIN_LOCKS
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_SC_SPORADIC_SERVER
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_SC_SS_REPL_MAX
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_SC_SYNCHRONIZED_IO
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_SC_THREAD_ATTR_STACKADDR
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_SC_THREAD_ATTR_STACKSIZE
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_SC_THREAD_CPUTIME
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_SC_THREAD_PRIO_INHERIT
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_SC_THREAD_PRIO_PROTECT
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_SC_THREAD_PRIORITY_SCHEDULING
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_SC_THREAD_PROCESS_SHARED
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_SC_THREAD_ROBUST_PRIO_INHERIT
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_SC_THREAD_ROBUST_PRIO_PROTECT
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_SC_THREAD_SAFE_FUNCTIONS
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_SC_THREAD_SPORADIC_SERVER
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_SC_THREADS
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_SC_TIMEOUTS
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_SC_TIMERS
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_SC_TRACE
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_SC_TRACE_EVENT_FILTER
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_SC_TRACE_EVENT_NAME_MAX
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_SC_TRACE_INHERIT
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_SC_TRACE_LOG
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_SC_TRACE_NAME_MAX
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_SC_TRACE_SYS_MAX
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_SC_TRACE_USER_EVENT_MAX
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_SC_TYPED_MEMORY_OBJECTS
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_SC_VERSION
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_SC_V7_ILP32_OFF32
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_SC_V7_ILP32_OFFBIG
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_SC_V7_LP64_OFF64
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_SC_V7_LPBIG_OFFBIG
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_SC_V6_ILP32_OFF32
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_SC_V6_ILP32_OFFBIG
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_SC_V6_LP64_OFF64
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_SC_V6_LPBIG_OFFBIG
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_SC_2_C_BIND
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_SC_2_C_DEV
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_SC_2_CHAR_TERM
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_SC_2_FORT_DEV
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_SC_2_FORT_RUN
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_SC_2_LOCALEDEF
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_SC_2_PBS
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_SC_2_PBS_ACCOUNTING
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_SC_2_PBS_CHECKPOINT
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_SC_2_PBS_LOCATE
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_SC_2_PBS_MESSAGE
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_SC_2_PBS_TRACK
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_SC_2_SW_DEV
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_SC_2_UPE
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_SC_2_VERSION
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_SC_PAGE_SIZE
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_SC_PAGESIZE
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_SC_THREAD_DESTRUCTOR_ITERATIONS
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_SC_THREAD_KEYS_MAX
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_SC_THREAD_STACK_MIN
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_SC_THREAD_THREADS_MAX
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_SC_RE_DUP_MAX
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_SC_RTSIG_MAX
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_SC_SEM_NSEMS_MAX
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_SC_SEM_VALUE_MAX
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_SC_SIGQUEUE_MAX
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_SC_STREAM_MAX
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_SC_SYMLOOP_MAX
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_SC_TIMER_MAX
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_SC_TTY_NAME_MAX
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_SC_TZNAME_MAX
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_SC_XOPEN_CRYPT
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_SC_XOPEN_ENH_I18N
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_SC_XOPEN_REALTIME
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_SC_XOPEN_REALTIME_THREADS
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_SC_XOPEN_SHM
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_SC_XOPEN_STREAMS
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_SC_XOPEN_UNIX
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_SC_XOPEN_UUCP
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_SC_XOPEN_VERSION
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# non-standard
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_SC_PHYS_PAGES
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_SC_AVPHYS_PAGES
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_SC_NPROCESSORS_CONF
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_SC_NPROCESSORS_ONLN
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_SC_CPUSET_SIZE
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# SUSv4
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_CS_PATH
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_CS_POSIX_V7_ILP32_OFF32_CFLAGS
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_CS_POSIX_V7_ILP32_OFF32_LDFLAGS
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_CS_POSIX_V7_ILP32_OFF32_LIBS
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_CS_POSIX_V7_ILP32_OFFBIG_CFLAGS
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_CS_POSIX_V7_ILP32_OFFBIG_LDFLAGS
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_CS_POSIX_V7_ILP32_OFFBIG_LIBS
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_CS_POSIX_V7_LP64_OFF64_CFLAGS
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_CS_POSIX_V7_LP64_OFF64_LDFLAGS
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_CS_POSIX_V7_LP64_OFF64_LIBS
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_CS_POSIX_V7_LPBIG_OFFBIG_CFLAGS
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_CS_POSIX_V7_LPBIG_OFFBIG_LDFLAGS
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_CS_POSIX_V7_LPBIG_OFFBIG_LIBS
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_CS_POSIX_V7_THREADS_CFLAGS
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_CS_POSIX_V7_THREADS_LDFLAGS
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_CS_POSIX_V7_WIDTH_RESTRICTED_ENVS
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_CS_V7_ENV
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_CS_POSIX_V6_ILP32_OFF32_CFLAGS
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_CS_POSIX_V6_ILP32_OFF32_LDFLAGS
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_CS_POSIX_V6_ILP32_OFF32_LIBS
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_CS_POSIX_V6_ILP32_OFFBIG_CFLAGS
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_CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS
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_CS_POSIX_V6_ILP32_OFFBIG_LIBS
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_CS_POSIX_V6_LP64_OFF64_CFLAGS
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_CS_POSIX_V6_LP64_OFF64_LDFLAGS
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_CS_POSIX_V6_LP64_OFF64_LIBS
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_CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS
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_CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS
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_CS_POSIX_V6_LPBIG_OFFBIG_LIBS
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_CS_POSIX_V6_WIDTH_RESTRICTED_ENVS
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_CS_V6_ENV
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# non-standard
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_CS_GNU_LIBC_VERSION
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_CS_GNU_LIBPTHREAD_VERSION
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# SUSv4
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_PC_FILESIZEBITS
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_PC_LINK_MAX
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_PC_MAX_CANON
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_PC_MAX_INPUT
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_PC_NAME_MAX
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_PC_PATH_MAX
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_PC_PIPE_BUF
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_PC_2_SYMLINKS
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_PC_ALLOC_SIZE_MIN
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_PC_REC_INCR_XFER_SIZE
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_PC_REC_MAX_XFER_SIZE
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_PC_REC_MIN_XFER_SIZE
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_PC_REC_XFER_ALIGN
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_PC_SYMLINK_MAX
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_PC_CHOWN_RESTRICTED
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_PC_NO_TRUNC
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_PC_VDISABLE
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_PC_ASYNC_IO
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_PC_PRIO_IO
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_PC_SYNC_IO
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_PC_TIMESTAMP_RESOLUTION
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