1 /* $Header: arg.h,v 3.0.1.7 90/10/15 14:53:59 lwall Locked $
3 * Copyright (c) 1989, Larry Wall
5 * You may distribute under the terms of the GNU General Public License
6 * as specified in the README file that comes with the perl 3.0 kit.
9 * Revision 3.0.1.7 90/10/15 14:53:59 lwall
10 * patch29: added SysV IPC
11 * patch29: added waitpid
12 * patch29: added cmp and <=>
13 * patch29: added caller
14 * patch29: added scalar
15 * patch29: added sysread and syswrite
16 * patch29: added -M, -A and -C
17 * patch29: index and substr now have optional 3rd args
18 * patch29: you can now read into the middle string
19 * patch29: various portability fixes
21 * Revision 3.0.1.6 90/08/09 02:25:14 lwall
22 * patch19: added require operator
23 * patch19: added truncate operator
25 * Revision 3.0.1.5 90/03/27 15:29:41 lwall
26 * patch16: MSDOS support
28 * Revision 3.0.1.4 90/03/12 16:18:21 lwall
29 * patch13: added list slice operator (LIST)[LIST]
30 * patch13: added splice operator: @oldelems = splice(@array,$offset,$len,LIST)
32 * Revision 3.0.1.3 90/02/28 16:21:55 lwall
33 * patch9: added pipe function
35 * Revision 3.0.1.2 89/12/21 19:13:14 lwall
36 * patch7: send() didn't allow a TO argument
38 * Revision 3.0.1.1 89/10/26 23:02:35 lwall
39 * patch1: reverse didn't work
41 * Revision 3.0 89/10/18 15:08:27 lwall
61 #define O_LEFT_SHIFT 15
62 #define O_RIGHT_SHIFT 16
74 #define O_COND_EXPR 28
78 #define O_COMPLEMENT 32
120 #define O_LOCALTIME 74
148 #define O_UNSHIFT 102
152 #define O_FTEREAD 106
153 #define O_FTEWRITE 107
154 #define O_FTEEXEC 108
155 #define O_FTEOWNED 109
156 #define O_FTRREAD 110
157 #define O_FTRWRITE 111
158 #define O_FTREXEC 112
159 #define O_FTROWNED 113
166 #define O_SYMLINK 120
177 #define O_FTBINARY 131
193 #define O_GETPPID 147
194 #define O_GETPGRP 148
195 #define O_SETPGRP 149
196 #define O_GETPRIORITY 150
197 #define O_SETPRIORITY 151
207 #define O_DBMOPEN 161
208 #define O_DBMCLOSE 162
211 #define O_LASLICE 165
212 #define O_LHSLICE 166
216 #define O_AASSIGN 170
217 #define O_SASSIGN 171
219 #define O_REVERSE 173
223 #define O_CONNECT 177
228 #define O_SSELECT 182
229 #define O_SOCKPAIR 183
231 #define O_DEFINED 185
233 #define O_READLINK 187
242 #define O_GHBYNAME 196
243 #define O_GHBYADDR 197
244 #define O_GHOSTENT 198
245 #define O_SHOSTENT 199
246 #define O_EHOSTENT 200
247 #define O_GSBYNAME 201
248 #define O_GSBYPORT 202
249 #define O_GSERVENT 203
250 #define O_SSERVENT 204
251 #define O_ESERVENT 205
252 #define O_GPBYNAME 206
253 #define O_GPBYNUMBER 207
254 #define O_GPROTOENT 208
255 #define O_SPROTOENT 209
256 #define O_EPROTOENT 210
257 #define O_GNBYNAME 211
258 #define O_GNBYADDR 212
259 #define O_GNETENT 213
260 #define O_SNETENT 214
261 #define O_ENETENT 215
274 #define O_SHUTDOWN 228
275 #define O_OPENDIR 229
276 #define O_READDIR 230
277 #define O_TELLDIR 231
278 #define O_SEEKDIR 232
279 #define O_REWINDDIR 233
280 #define O_CLOSEDIR 234
281 #define O_GETLOGIN 235
282 #define O_SYSCALL 236
283 #define O_GSOCKOPT 237
284 #define O_SSOCKOPT 238
285 #define O_GETSOCKNAME 239
286 #define O_GETPEERNAME 240
289 #define O_BINMODE 243
290 #define O_REQUIRE 244
291 #define O_TRUNCATE 245
301 #define O_SHMREAD 255
302 #define O_SHMWRITE 256
307 #define O_SYSREAD 261
308 #define O_SYSWRITE 262
309 #define O_FTMTIME 263
310 #define O_FTATIME 264
311 #define O_FTCTIME 265
312 #define O_WAITPID 266
316 extern char *opname[];
607 #define A_LARYSTAB 17
610 #define A_WANTARRAY 20
613 #define A_DONT 32 /* or this into type to suppress evaluation */
616 extern char *argname[];
645 extern bool hoistable[];
684 union argptr arg_ptr;
686 unsigned short arg_type;
687 unsigned short arg_flags;
690 #define AF_ARYOK 1 /* op can handle multiple values here */
691 #define AF_POST 2 /* post *crement this item */
692 #define AF_PRE 4 /* pre *crement this item */
693 #define AF_UP 8 /* increment rather than decrement */
694 #define AF_COMMON 16 /* left and right have symbols in common */
695 #define AF_UNUSED 32 /* */
696 #define AF_LISTISH 64 /* turn into list if important */
697 #define AF_LOCAL 128 /* list of local variables */
700 * Most of the ARG pointers are used as pointers to arrays of ARG. When
701 * so used, the 0th element is special, and represents the operator to
702 * use on the list of arguments following. The arg_len in the 0th element
703 * gives the maximum argument number, and the arg_str is used to store
704 * the return value in a more-or-less static location. Sorry it's not
705 * re-entrant (yet), but it sure makes it efficient. The arg_type of the
706 * 0th element is an operator (O_*) rather than an argument type (A_*).
709 #define Nullarg Null(ARG*)
712 EXT unsigned short opargs[MAXO+1];
714 #define A(e1,e2,e3) (e1+(e2<<2)+(e3<<4))
715 #define A5(e1,e2,e3,e4,e5) (e1+(e2<<2)+(e3<<4)+(e4<<6)+(e5<<8))
716 unsigned short opargs[MAXO+1] = {
719 A(0,0,0), /* ITEM2 */
720 A(0,0,0), /* ITEM3 */
721 A(1,1,0), /* CONCAT */
722 A(1,0,0), /* MATCH */
723 A(1,0,0), /* NMATCH */
724 A(1,0,0), /* SUBST */
725 A(1,0,0), /* NSUBST */
726 A(1,1,0), /* ASSIGN */
727 A(1,1,0), /* MULTIPLY */
728 A(1,1,0), /* DIVIDE */
729 A(1,1,0), /* MODULO */
731 A(1,1,0), /* SUBTRACT */
732 A(1,1,0), /* LEFT_SHIFT */
733 A(1,1,0), /* RIGHT_SHIFT */
740 A(1,1,0), /* BIT_AND */
742 A(1,1,0), /* BIT_OR */
745 A(1,0,0), /* COND_EXPR */
746 A(1,1,0), /* COMMA */
747 A(1,0,0), /* NEGATE */
749 A(1,0,0), /* COMPLEMENT */
750 A(1,0,0), /* WRITE */
752 A(1,0,0), /* TRANS */
753 A(1,0,0), /* NTRANS */
754 A(1,0,0), /* CLOSE */
755 A(0,0,0), /* ARRAY */
757 A(0,0,0), /* LARRAY */
758 A(0,0,0), /* LHASH */
761 A(0,0,0), /* SHIFT */
762 A(1,0,1), /* SPLIT */
763 A(1,0,0), /* LENGTH */
764 A(3,0,0), /* SPRINTF */
765 A(1,1,1), /* SUBSTR */
774 A(1,3,0), /* PRINT */
775 A(1,0,0), /* CHDIR */
778 A(1,0,0), /* RESET */
780 A(1,0,0), /* SELECT */
788 A(1,1,1), /* INDEX */
790 A(0,0,0), /* TIMES */
791 A(1,0,0), /* LOCALTIME */
792 A(1,0,0), /* GMTIME */
794 A(1,1,0), /* CRYPT */
799 A(1,3,0), /* PRINTF */
801 A(1,0,0), /* SLEEP */
805 A(0,0,0), /* VALUES */
810 A(1,3,0), /* SYSTEM */
813 A(0,3,0), /* CHMOD */
814 A(0,3,0), /* CHOWN */
816 A(1,1,0), /* RENAME */
817 A(0,3,0), /* UNLINK */
818 A(1,0,0), /* UMASK */
819 A(0,3,0), /* UNSHIFT */
821 A(1,1,0), /* REPEAT */
823 A(1,0,0), /* FTEREAD */
824 A(1,0,0), /* FTEWRITE */
825 A(1,0,0), /* FTEEXEC */
826 A(1,0,0), /* FTEOWNED */
827 A(1,0,0), /* FTRREAD */
828 A(1,0,0), /* FTRWRITE */
829 A(1,0,0), /* FTREXEC */
830 A(1,0,0), /* FTROWNED */
832 A(1,0,0), /* FTZERO */
833 A(1,0,0), /* FTSIZE */
834 A(1,0,0), /* FTFILE */
835 A(1,0,0), /* FTDIR */
836 A(1,0,0), /* FTLINK */
837 A(1,1,0), /* SYMLINK */
838 A(1,0,0), /* FTPIPE */
839 A(1,0,0), /* FTSOCK */
840 A(1,0,0), /* FTBLK */
841 A(1,0,0), /* FTCHR */
842 A(1,0,0), /* FTSUID */
843 A(1,0,0), /* FTSGID */
844 A(1,0,0), /* FTSVTX */
845 A(1,0,0), /* FTTTY */
846 A(1,0,0), /* DOFILE */
847 A(1,0,0), /* FTTEXT */
848 A(1,0,0), /* FTBINARY */
849 A(0,3,0), /* UTIME */
852 A(0,1,0), /* DELETE */
853 A(1,0,0), /* STUDY */
854 A(1,1,0), /* ATAN2 */
858 A(1,0,0), /* SRAND */
860 A(0,3,0), /* RETURN */
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), /* IOCTL */
871 A(1,1,1), /* FCNTL */
872 A(1,1,0), /* FLOCK */
873 A(1,1,1), /* RINDEX */
875 A(1,1,0), /* UNPACK */
878 A(1,1,1), /* DBMOPEN */
879 A(1,0,0), /* DBMCLOSE */
880 A(0,3,0), /* ASLICE */
881 A(0,3,0), /* HSLICE */
882 A(0,3,0), /* LASLICE */
883 A(0,3,0), /* LHSLICE */
884 A(1,0,0), /* F_OR_R */
885 A(1,1,0), /* RANGE */
887 A(3,3,0), /* AASSIGN */
888 A(0,0,0), /* SASSIGN */
890 A(0,3,0), /* REVERSE */
891 A(1,0,0), /* ADDROF */
892 A(1,1,1), /* SOCKET */
894 A(1,1,0), /* CONNECT */
895 A(1,1,0), /* LISTEN */
896 A(1,1,0), /* ACCEPT */
899 A(1,1,1), /* SSELECT */
900 A(1,1,1), /* SOCKPAIR */
901 A(0,3,0), /* DBSUBR */
902 A(1,0,0), /* DEFINED */
903 A(1,0,0), /* UNDEF */
904 A(1,0,0), /* READLINK */
905 A(1,0,0), /* LSTAT */
906 A(0,1,0), /* AELEM */
907 A(0,1,0), /* HELEM */
908 A(0,1,0), /* LAELEM */
909 A(0,1,0), /* LHELEM */
910 A(1,0,0), /* LOCAL */
912 A(1,0,0), /* FILENO */
913 A(1,0,0), /* GHBYNAME */
914 A(1,1,0), /* GHBYADDR */
915 A(0,0,0), /* GHOSTENT */
916 A(1,0,0), /* SHOSTENT */
917 A(0,0,0), /* EHOSTENT */
918 A(1,1,0), /* GSBYNAME */
919 A(1,1,0), /* GSBYPORT */
920 A(0,0,0), /* GSERVENT */
921 A(1,0,0), /* SSERVENT */
922 A(0,0,0), /* ESERVENT */
923 A(1,0,0), /* GPBYNAME */
924 A(1,0,0), /* GPBYNUMBER */
925 A(0,0,0), /* GPROTOENT */
926 A(1,0,0), /* SPROTOENT */
927 A(0,0,0), /* EPROTOENT */
928 A(1,0,0), /* GNBYNAME */
929 A(1,1,0), /* GNBYADDR */
930 A(0,0,0), /* GNETENT */
931 A(1,0,0), /* SNETENT */
932 A(0,0,0), /* ENETENT */
935 A(1,0,0), /* GPWNAM */
936 A(1,0,0), /* GPWUID */
937 A(0,0,0), /* GPWENT */
938 A(0,0,0), /* SPWENT */
939 A(0,0,0), /* EPWENT */
940 A(1,0,0), /* GGRNAM */
941 A(1,0,0), /* GGRGID */
942 A(0,0,0), /* GGRENT */
943 A(0,0,0), /* SGRENT */
944 A(0,0,0), /* EGRENT */
945 A(1,1,0), /* SHUTDOWN */
946 A(1,1,0), /* OPENDIR */
947 A(1,0,0), /* READDIR */
948 A(1,0,0), /* TELLDIR */
949 A(1,1,0), /* SEEKDIR */
950 A(1,0,0), /* REWINDDIR */
951 A(1,0,0), /* CLOSEDIR */
952 A(0,0,0), /* GETLOGIN */
953 A(1,3,0), /* SYSCALL */
954 A(1,1,1), /* GSOCKOPT */
955 A(1,1,1), /* SSOCKOPT */
956 A(1,0,0), /* GETSOCKNAME */
957 A(1,0,0), /* GETPEERNAME */
958 A(0,3,3), /* LSLICE */
959 A(0,3,1), /* SPLICE */
960 A(1,0,0), /* BINMODE */
961 A(1,0,0), /* REQUIRE */
962 A(1,1,0), /* TRUNCATE */
963 A(1,1,0), /* MSGGET */
964 A(1,1,1), /* MSGCTL */
965 A(1,1,1), /* MSGSND */
966 A5(1,1,1,1,1), /* MSGRCV */
967 A(1,1,1), /* SEMGET */
968 A5(1,1,1,1,0), /* SEMCTL */
969 A(1,1,1), /* SEMOP */
970 A(1,1,1), /* SHMGET */
971 A(1,1,1), /* SHMCTL */
972 A5(1,1,1,1,0), /* SHMREAD */
973 A5(1,1,1,1,0), /* SHMWRITE */
976 A(1,0,0), /* CALLER */
977 A(1,0,0), /* SCALAR */
978 A(1,1,3), /* SYSREAD */
979 A(1,1,3), /* SYSWRITE */
980 A(1,0,0), /* FTMTIME */
981 A(1,0,0), /* FTATIME */
982 A(1,0,0), /* FTCTIME */
983 A(1,1,0), /* WAITPID */