mirror of
git://git.code.sf.net/p/cdesktopenv/code
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807863c29a
This commit:
1. Updates the COPYRIGHT file with all the contributors to ksh
93u+m since the reboot, based on the commit history, sorted by
number of commits in descending order. It also separates the
authors of backported contributions from direct contributors.
2. Adds missing contributors of source each file to that file's
copyright header based on that file's commit history.
The script used to maintain this is now up at:
https://github.com/ksh93/ksh/wiki/update-copyright.sh
In addition, the original ast copyright notice is restored to
its EPL 1.0 version -- that is what AT&T Intellectual Property
originally licensed this code under, and we are the ones who
upgraded it to EPL 2.0 (as allowed by EPL 1.0) in 441dcc04.
The history should be accurate.
214 lines
5.3 KiB
C
214 lines
5.3 KiB
C
/***********************************************************************
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* *
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* This software is part of the ast package *
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* Copyright (c) 1982-2012 AT&T Intellectual Property *
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* Copyright (c) 2020-2022 Contributors to ksh 93u+m *
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* and is licensed under the *
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* Eclipse Public License, Version 2.0 *
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* *
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* A copy of the License is available at *
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* https://www.eclipse.org/org/documents/epl-2.0/EPL-2.0.html *
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* (with md5 checksum 84283fa8859daf213bdda5a9f8d1be1d) *
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* *
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* David Korn <dgk@research.att.com> *
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* Martijn Dekker <martijn@inlv.org> *
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* *
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***********************************************************************/
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#ifndef _SHNODES_H
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#define _SHNODES_H 1
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/*
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* UNIX shell
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* Written by David Korn
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*
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*/
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#include <ast.h>
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#include "argnod.h"
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/* command tree for tretyp */
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#define FINT (02<<COMBITS) /* non-interruptible */
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#define FAMP (04<<COMBITS) /* background */
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#define FPIN (010<<COMBITS) /* input is a pipe */
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#define FPOU (040<<COMBITS) /* output is a pipe */
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#define FPCL (0100<<COMBITS) /* close the pipe */
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#define FCOOP (0200<<COMBITS) /* cooperating process */
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#define FSHOWME (0400<<COMBITS) /* set for showme commands */
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#define FALTPIPE (02000<<COMBITS) /* alternate pipes &| */
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#define FPOSIX (02<<COMBITS) /* POSIX semantics function */
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#define FLINENO (04<<COMBITS) /* for/case has line number */
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#define FOPTGET (0200<<COMBITS) /* function calls getopts */
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#define TNEGATE (01<<COMBITS) /* ! inside [[ ... ]] */
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#define TBINARY (02<<COMBITS) /* binary operator in [[ ... ]] */
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#define TUNARY (04<<COMBITS) /* unary operator in [[ ... ]] */
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#define TTEST (010<<COMBITS)
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#define TPAREN (TBINARY|TUNARY)
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#define TSHIFT (COMBITS+4)
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#define TNSPACE (TFUN|COMSCAN)
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#define TCOM 0
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#define TPAR 1
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#define TFIL 2
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#define TLST 3
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#define TIF 4
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#define TWH 5
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#define TUN (TWH|COMSCAN)
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#define TTST 6
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#define TSW 7
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#define TAND 8
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#define TORF 9
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#define TFORK 10
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#define TFOR 11
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#define TSELECT (TFOR|COMSCAN)
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#define TARITH 12
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#define TTIME 13
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#define TSETIO 14
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#define TFUN 15
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/* this node is a proforma for those that follow */
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struct trenod
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{
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int tretyp;
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struct ionod *treio;
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};
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struct forknod
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{
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int forktyp;
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struct ionod *forkio;
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Shnode_t *forktre;
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int forkline;
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};
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struct ifnod
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{
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int iftyp;
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Shnode_t *iftre;
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Shnode_t *thtre;
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Shnode_t *eltre;
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};
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struct whnod
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{
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int whtyp;
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Shnode_t *whtre;
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Shnode_t *dotre;
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struct arithnod *whinc;
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};
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struct fornod
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{
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int fortyp;
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char *fornam;
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Shnode_t *fortre;
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struct comnod *forlst;
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int forline;
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};
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struct swnod
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{
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int swtyp;
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struct argnod *swarg;
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struct regnod *swlst;
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struct ionod *swio;
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int swline;
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};
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struct regnod
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{
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struct argnod *regptr;
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Shnode_t *regcom;
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struct regnod *regnxt;
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char regflag;
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};
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struct parnod
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{
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int partyp;
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Shnode_t *partre;
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};
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struct lstnod
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{
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int lsttyp;
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Shnode_t *lstlef;
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Shnode_t *lstrit;
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};
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/* tst is same as lst, but with extra field for line number */
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struct tstnod
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{
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struct lstnod tstlst;
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int tstline;
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};
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struct functnod
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{
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int functtyp;
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char *functnam;
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Shnode_t *functtre;
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int functline;
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off_t functloc;
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struct slnod *functstak;
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struct comnod *functargs;
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};
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struct arithnod
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{
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int artyp;
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int arline;
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struct argnod *arexpr;
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void *arcomp;
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};
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/* types of ionodes stored in iofile */
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#define IOUFD 0x3f /* file descriptor number mask */
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#define IOPUT 0x40 /* > redirection operator */
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#define IOAPP 0x80 /* >> redirection operator */
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#define IODOC 0x100 /* << redirection operator */
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#define IOMOV 0x200 /* <& or >& operators */
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#define IOCLOB 0x400 /* noclobber bit */
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#define IORDW 0x800 /* <> redirection operator */
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#define IORAW 0x1000 /* no expansion needed for filename */
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#define IOSTRG 0x2000 /* here-document stored as incore string */
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#define IOSTRIP 0x4000 /* strip leading tabs for here-document */
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#define IOQUOTE 0x8000 /* here-document delimiter was quoted */
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#define IOVNM 0x10000 /* iovname field is non-zero */
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#define IOLSEEK 0x20000 /* seek operators <# or ># */
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#define IOARITH 0x40000 /* arithmetic seek <# ((expr)) */
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#define IOREWRITE 0x80000 /* arithmetic seek <# ((expr)) */
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#define IOCOPY IOCLOB /* copy skipped lines onto standard output */
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#define IOPROCSUB IOARITH /* process substitution redirection */
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union Shnode_u
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{
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struct argnod arg;
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struct ionod io;
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struct whnod wh;
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struct swnod sw;
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struct ifnod if_;
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struct dolnod dol;
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struct comnod com;
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struct trenod tre;
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struct forknod fork;
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struct fornod for_;
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struct regnod reg;
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struct parnod par;
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struct lstnod lst;
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struct tstnod tst;
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struct functnod funct;
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struct arithnod ar;
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};
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extern void sh_freeup(void);
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extern void sh_funstaks(struct slnod*,int);
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extern Sfio_t *sh_subshell(Shnode_t*, volatile int, int);
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extern int sh_tdump(Sfio_t*, const Shnode_t*);
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extern Shnode_t *sh_trestore(Sfio_t*);
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#endif /* _SHNODES_H */
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