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