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authorIgor Pashev <pashev.igor@gmail.com>2012-06-24 22:28:35 +0000
committerIgor Pashev <pashev.igor@gmail.com>2012-06-24 22:28:35 +0000
commit3950ffe2a485479f6561c27364d3d7df5a21d124 (patch)
tree468c6e14449d1b1e279222ec32f676b0311917d2 /src/cmd/ksh93/include/argnod.h
downloadksh-upstream.tar.gz
Imported Upstream version 93u+upstream
Diffstat (limited to 'src/cmd/ksh93/include/argnod.h')
-rw-r--r--src/cmd/ksh93/include/argnod.h145
1 files changed, 145 insertions, 0 deletions
diff --git a/src/cmd/ksh93/include/argnod.h b/src/cmd/ksh93/include/argnod.h
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+/***********************************************************************
+* *
+* This software is part of the ast package *
+* Copyright (c) 1982-2011 AT&T Intellectual Property *
+* and is licensed under the *
+* Eclipse Public License, Version 1.0 *
+* by AT&T Intellectual Property *
+* *
+* A copy of the License is available at *
+* http://www.eclipse.org/org/documents/epl-v10.html *
+* (with md5 checksum b35adb5213ca9657e911e9befb180842) *
+* *
+* 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 */