/*********************************************************************** * * * This software is part of the ast package * * Copyright (c) 1982-2011 AT&T Intellectual Property * * and is licensed under the * * Common Public License, Version 1.0 * * by AT&T Intellectual Property * * * * A copy of the License is available at * * http://www.opensource.org/licenses/cpl1.0.txt * * (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) * * * * Information and Software Systems Research * * AT&T Research * * Florham Park NJ * * * * David Korn <dgk@research.att.com> * * * ***********************************************************************/ #pragma prototyped #ifndef ARG_RAW /* * struct to hold a word argument * Written by David Korn * */ #include <stak.h> struct ionod { unsigned iofile; char *ioname; struct ionod *ionxt; struct ionod *iolst; char *iodelim; off_t iooffset; long iosize; char *iovname; }; struct comnod { int comtyp; struct ionod *comio; struct argnod *comarg; struct argnod *comset; void *comnamp; void *comnamq; void *comstate; int comline; }; #define COMBITS 4 #define COMMSK ((1<<COMBITS)-1) #define COMSCAN (01<<COMBITS) #define COMFIXED (02<<COMBITS) struct slnod /* struct for link list of stacks */ { struct slnod *slnext; struct slnod *slchild; Stak_t *slptr; /* slpad aligns struct functnod = struct slnod + 1 on some architectures */ struct slnod *slpad; }; /* * This struct is use to hold $* lists and arrays */ struct dolnod { int dolrefcnt; /* reference count */ int dolmax; /* size of dolval array */ int dolnum; /* number of elements */ int dolbot; /* current first element */ struct dolnod *dolnxt; /* used when list are chained */ char *dolval[1]; /* array of value pointers */ }; /* * This struct is used to hold word arguments of variable size during * parsing and during expansion. The flags indicate what processing * is required on the argument. */ struct argnod { union { struct argnod *ap; char *cp; } argnxt; union { struct argnod *ap; char *cp; int len; } argchn; unsigned char argflag; char argval[4]; }; /* The following should evaluate to the offset of argval in argnod */ #define ARGVAL offsetof(struct argnod,argval[0]) #define sh_argstr(ap) ((ap)->argflag&ARG_RAW?sh_fmtq((ap)->argval):(ap)->argval) #define ARG_SPARE 1 /* legal argument flags */ #define ARG_RAW 0x1 /* string needs no processing */ #define ARG_MAKE 0x2 /* bit set during argument expansion */ #define ARG_COMSUB 0x2 /* command sub */ #define ARG_MAC 0x4 /* string needs macro expansion */ #define ARG_EXP 0x8 /* string needs file expansion */ #define ARG_ASSIGN 0x10 /* argument is an assignment */ #define ARG_QUOTED 0x20 /* word contained quote characters */ #define ARG_MESSAGE 0x40 /* contains international string */ #define ARG_APPEND 0x80 /* for += assignment */ /* The following can be passed as options to sh_macexpand() */ #define ARG_ARITH 0x100 /* arithmetic expansion */ #define ARG_OPTIMIZE 0x200 /* try to optimize */ #define ARG_NOGLOB 0x400 /* no file name expansion */ #define ARG_LET 0x800 /* processing let command arguments */ #define ARG_ARRAYOK 0x1000 /* $x[sub] ==> ${x[sub]} */ extern struct dolnod *sh_argcreate(char*[]); extern char *sh_argdolminus(void*); extern int sh_argopts(int,char*[],void*); extern const char e_heading[]; extern const char e_off[]; extern const char e_on[]; extern const char e_sptbnl[]; extern const char e_subst[]; extern const char e_option[]; extern const char e_exec[]; extern const char e_devfdNN[]; extern const char e_devfdstd[]; #endif /* ARG_RAW */