1 /* $RCSfile: arg.h,v $$Revision: 4.0.1.1 $$Date: 91/06/07 10:18:30 $
3 * Copyright (c) 1991, Larry Wall
5 * You may distribute under the terms of either the GNU General Public
6 * License or the Artistic License, as specified in the README file.
9 * Revision 4.0.1.1 91/06/07 10:18:30 lwall
10 * patch4: length($`), length($&), length($') now optimized to avoid string copy
11 * patch4: new copyright notice
12 * patch4: many, many itty-bitty portability fixes
14 * Revision 4.0 91/03/20 01:03:09 lwall
45 #define O_LEFT_SHIFT 26
46 #define O_RIGHT_SHIFT 27
59 #define O_COND_EXPR 40
63 #define O_COMPLEMENT 44
126 #define O_SYSREAD 107
127 #define O_SYSWRITE 108
140 #define O_LOCALTIME 121
142 #define O_TRUNCATE 123
164 #define O_WAITPID 145
166 #define O_EXEC_OP 147
184 #define O_SHMREAD 165
185 #define O_SHMWRITE 166
190 #define O_GETPPID 171
191 #define O_GETPGRP 172
192 #define O_SETPGRP 173
193 #define O_GETPRIORITY 174
194 #define O_SETPRIORITY 175
199 #define O_UNSHIFT 180
200 #define O_REQUIRE 181
203 #define O_FTRREAD 184
204 #define O_FTRWRITE 185
205 #define O_FTREXEC 186
206 #define O_FTEREAD 187
207 #define O_FTEWRITE 188
208 #define O_FTEEXEC 189
210 #define O_FTEOWNED 191
211 #define O_FTROWNED 192
214 #define O_FTMTIME 195
215 #define O_FTATIME 196
216 #define O_FTCTIME 197
224 #define O_SYMLINK 205
225 #define O_READLINK 206
231 #define O_FTBINARY 212
234 #define O_CONNECT 215
237 #define O_GHBYNAME 218
238 #define O_GHBYADDR 219
239 #define O_GHOSTENT 220
240 #define O_GNBYNAME 221
241 #define O_GNBYADDR 222
242 #define O_GNETENT 223
243 #define O_GPBYNAME 224
244 #define O_GPBYNUMBER 225
245 #define O_GPROTOENT 226
246 #define O_GSBYNAME 227
247 #define O_GSBYPORT 228
248 #define O_GSERVENT 229
249 #define O_SHOSTENT 230
250 #define O_SNETENT 231
251 #define O_SPROTOENT 232
252 #define O_SSERVENT 233
253 #define O_EHOSTENT 234
254 #define O_ENETENT 235
255 #define O_EPROTOENT 236
256 #define O_ESERVENT 237
257 #define O_SOCKPAIR 238
258 #define O_SHUTDOWN 239
259 #define O_GSOCKOPT 240
260 #define O_SSOCKOPT 241
261 #define O_GETSOCKNAME 242
262 #define O_GETPEERNAME 243
263 #define O_SSELECT 244
265 #define O_BINMODE 246
277 #define O_GETLOGIN 258
278 #define O_OPEN_DIR 259
279 #define O_READDIR 260
280 #define O_TELLDIR 261
281 #define O_SEEKDIR 262
282 #define O_REWINDDIR 263
283 #define O_CLOSEDIR 264
284 #define O_SYSCALL 265
289 extern char *opname[];
580 #define A_LARYSTAB 17
583 #define A_WANTARRAY 20
587 #define A_DONT 32 /* or this into type to suppress evaluation */
590 extern char *argname[];
620 extern bool hoistable[];
660 union argptr arg_ptr;
662 unsigned short arg_type;
663 unsigned short arg_flags;
666 #define AF_ARYOK 1 /* op can handle multiple values here */
667 #define AF_POST 2 /* post *crement this item */
668 #define AF_PRE 4 /* pre *crement this item */
669 #define AF_UP 8 /* increment rather than decrement */
670 #define AF_COMMON 16 /* left and right have symbols in common */
671 #define AF_DEPR 32 /* an older form of the construct */
672 #define AF_LISTISH 64 /* turn into list if important */
673 #define AF_LOCAL 128 /* list of local variables */
676 * Most of the ARG pointers are used as pointers to arrays of ARG. When
677 * so used, the 0th element is special, and represents the operator to
678 * use on the list of arguments following. The arg_len in the 0th element
679 * gives the maximum argument number, and the arg_str is used to store
680 * the return value in a more-or-less static location. Sorry it's not
681 * re-entrant (yet), but it sure makes it efficient. The arg_type of the
682 * 0th element is an operator (O_*) rather than an argument type (A_*).
685 #define Nullarg Null(ARG*)
688 EXT unsigned short opargs[MAXO+1];
690 #define A(e1,e2,e3) (e1+(e2<<2)+(e3<<4))
691 #define A5(e1,e2,e3,e4,e5) (e1+(e2<<2)+(e3<<4)+(e4<<6)+(e5<<8))
692 unsigned short opargs[MAXO+1] = {
696 A(1,0,0), /* SCALAR */
697 A(0,0,0), /* ITEM2 */
698 A(0,0,0), /* ITEM3 */
699 A(1,1,0), /* CONCAT */
700 A(3,1,0), /* REPEAT */
701 A(1,0,0), /* MATCH */
702 A(1,0,0), /* NMATCH */
703 A(1,0,0), /* SUBST */
704 A(1,0,0), /* NSUBST */
705 A(1,1,0), /* ASSIGN */
706 A(1,0,0), /* LOCAL */
707 A(3,3,0), /* AASSIGN */
708 A(0,0,0), /* SASSIGN */
710 A(1,0,0), /* DEFINED */
711 A(1,0,0), /* UNDEF */
712 A(1,0,0), /* STUDY */
714 A(1,1,0), /* MULTIPLY */
715 A(1,1,0), /* DIVIDE */
716 A(1,1,0), /* MODULO */
718 A(1,1,0), /* SUBTRACT */
719 A(1,1,0), /* LEFT_SHIFT */
720 A(1,1,0), /* RIGHT_SHIFT */
728 A(1,1,0), /* BIT_AND */
730 A(1,1,0), /* BIT_OR */
733 A(1,0,0), /* COND_EXPR */
734 A(1,1,0), /* COMMA */
735 A(1,0,0), /* NEGATE */
737 A(1,0,0), /* COMPLEMENT */
738 A(1,0,0), /* SELECT */
739 A(1,0,0), /* WRITE */
740 A(1,1,1), /* DBMOPEN */
741 A(1,0,0), /* DBMCLOSE */
743 A(1,0,0), /* TRANS */
744 A(1,0,0), /* NTRANS */
745 A(1,0,0), /* CLOSE */
747 A(0,0,0), /* VALUES */
749 A(0,0,0), /* LARRAY */
750 A(0,0,0), /* ARRAY */
751 A(0,1,0), /* AELEM */
752 A(0,1,0), /* DELETE */
753 A(0,0,0), /* LHASH */
755 A(0,1,0), /* HELEM */
756 A(0,1,0), /* LAELEM */
757 A(0,1,0), /* LHELEM */
758 A(0,3,3), /* LSLICE */
759 A(0,3,0), /* ASLICE */
760 A(0,3,0), /* HSLICE */
761 A(0,3,0), /* LASLICE */
762 A(0,3,0), /* LHSLICE */
763 A(0,3,1), /* SPLICE */
766 A(0,0,0), /* SHIFT */
767 A(1,1,0), /* UNPACK */
768 A(1,0,1), /* SPLIT */
769 A(1,0,0), /* LENGTH */
770 A(3,0,0), /* SPRINTF */
771 A(1,1,1), /* SUBSTR */
783 A(0,3,0), /* DBSUBR */
784 A(1,0,0), /* CALLER */
786 A(0,3,0), /* REVERSE */
789 A(1,3,0), /* PRINTF */
790 A(1,3,0), /* PRINT */
791 A(1,0,0), /* CHDIR */
793 A(1,0,0), /* RESET */
798 A5(1,1,1,1,0), /* RECV */
800 A(1,1,3), /* SYSREAD */
801 A(1,1,3), /* SYSWRITE */
804 A(0,3,0), /* RETURN */
810 A(1,1,1), /* INDEX */
811 A(1,1,1), /* RINDEX */
813 A(0,0,0), /* TIMES */
814 A(1,0,0), /* LOCALTIME */
815 A(1,0,0), /* GMTIME */
816 A(1,1,0), /* TRUNCATE */
817 A(1,0,0), /* LSTAT */
819 A(1,1,0), /* CRYPT */
820 A(1,1,0), /* ATAN2 */
824 A(1,0,0), /* SRAND */
830 A(1,0,0), /* ALARM */
831 A(1,0,0), /* SLEEP */
832 A(1,1,0), /* RANGE */
833 A(1,0,0), /* F_OR_R */
838 A(1,1,0), /* WAITPID */
839 A(1,3,0), /* SYSTEM */
843 A(0,3,0), /* CHOWN */
845 A(0,3,0), /* UNLINK */
846 A(0,3,0), /* CHMOD */
847 A(0,3,0), /* UTIME */
848 A(1,0,0), /* UMASK */
849 A(1,1,0), /* MSGGET */
850 A(1,1,1), /* SHMGET */
851 A(1,1,1), /* SEMGET */
852 A(1,1,1), /* MSGCTL */
853 A(1,1,1), /* SHMCTL */
854 A5(1,1,1,1,0), /* SEMCTL */
855 A(1,1,1), /* MSGSND */
856 A5(1,1,1,1,1), /* MSGRCV */
857 A(1,1,1), /* SEMOP */
858 A5(1,1,1,1,0), /* SHMREAD */
859 A5(1,1,1,1,0), /* SHMWRITE */
860 A(1,1,0), /* RENAME */
862 A(1,1,0), /* MKDIR */
863 A(1,0,0), /* RMDIR */
864 A(0,0,0), /* GETPPID */
865 A(1,0,0), /* GETPGRP */
866 A(1,1,0), /* SETPGRP */
867 A(1,1,0), /* GETPRIORITY */
868 A(1,1,1), /* SETPRIORITY */
869 A(1,0,0), /* CHROOT */
870 A(1,1,1), /* FCNTL */
871 A(1,1,1), /* SYSIOCTL */
872 A(1,1,0), /* FLOCK */
873 A(0,3,0), /* UNSHIFT */
874 A(1,0,0), /* REQUIRE */
875 A(1,0,0), /* DOFILE */
877 A(1,0,0), /* FTRREAD */
878 A(1,0,0), /* FTRWRITE */
879 A(1,0,0), /* FTREXEC */
880 A(1,0,0), /* FTEREAD */
881 A(1,0,0), /* FTEWRITE */
882 A(1,0,0), /* FTEEXEC */
884 A(1,0,0), /* FTEOWNED */
885 A(1,0,0), /* FTROWNED */
886 A(1,0,0), /* FTZERO */
887 A(1,0,0), /* FTSIZE */
888 A(1,0,0), /* FTMTIME */
889 A(1,0,0), /* FTATIME */
890 A(1,0,0), /* FTCTIME */
891 A(1,0,0), /* FTSOCK */
892 A(1,0,0), /* FTCHR */
893 A(1,0,0), /* FTBLK */
894 A(1,0,0), /* FTFILE */
895 A(1,0,0), /* FTDIR */
896 A(1,0,0), /* FTPIPE */
897 A(1,0,0), /* FTLINK */
898 A(1,1,0), /* SYMLINK */
899 A(1,0,0), /* READLINK */
900 A(1,0,0), /* FTSUID */
901 A(1,0,0), /* FTSGID */
902 A(1,0,0), /* FTSVTX */
903 A(1,0,0), /* FTTTY */
904 A(1,0,0), /* FTTEXT */
905 A(1,0,0), /* FTBINARY */
906 A5(1,1,1,1,0), /* SOCKET */
908 A(1,1,0), /* CONNECT */
909 A(1,1,0), /* LISTEN */
910 A(1,1,0), /* ACCEPT */
911 A(1,0,0), /* GHBYNAME */
912 A(1,1,0), /* GHBYADDR */
913 A(0,0,0), /* GHOSTENT */
914 A(1,0,0), /* GNBYNAME */
915 A(1,1,0), /* GNBYADDR */
916 A(0,0,0), /* GNETENT */
917 A(1,0,0), /* GPBYNAME */
918 A(1,0,0), /* GPBYNUMBER */
919 A(0,0,0), /* GPROTOENT */
920 A(1,1,0), /* GSBYNAME */
921 A(1,1,0), /* GSBYPORT */
922 A(0,0,0), /* GSERVENT */
923 A(1,0,0), /* SHOSTENT */
924 A(1,0,0), /* SNETENT */
925 A(1,0,0), /* SPROTOENT */
926 A(1,0,0), /* SSERVENT */
927 A(0,0,0), /* EHOSTENT */
928 A(0,0,0), /* ENETENT */
929 A(0,0,0), /* EPROTOENT */
930 A(0,0,0), /* ESERVENT */
931 A5(1,1,1,1,1), /* SOCKPAIR */
932 A(1,1,0), /* SHUTDOWN */
933 A(1,1,1), /* GSOCKOPT */
934 A5(1,1,1,1,0), /* SSOCKOPT */
935 A(1,0,0), /* GETSOCKNAME */
936 A(1,0,0), /* GETPEERNAME */
937 A5(1,1,1,1,0), /* SSELECT */
938 A(1,0,0), /* FILENO */
939 A(1,0,0), /* BINMODE */
941 A(1,0,0), /* GPWNAM */
942 A(1,0,0), /* GPWUID */
943 A(0,0,0), /* GPWENT */
944 A(0,0,0), /* SPWENT */
945 A(0,0,0), /* EPWENT */
946 A(1,0,0), /* GGRNAM */
947 A(1,0,0), /* GGRGID */
948 A(0,0,0), /* GGRENT */
949 A(0,0,0), /* SGRENT */
950 A(0,0,0), /* EGRENT */
951 A(0,0,0), /* GETLOGIN */
952 A(1,1,0), /* OPENDIR */
953 A(1,0,0), /* READDIR */
954 A(1,0,0), /* TELLDIR */
955 A(1,1,0), /* SEEKDIR */
956 A(1,0,0), /* REWINDDIR */
957 A(1,0,0), /* CLOSEDIR */
958 A(1,3,0), /* SYSCALL */