#/* *	UNIX shell * *	S. R. Bourne *	Bell Telephone Laboratories * */#include	"defs.h"#include	"sym.h"MSG		version = "\nVERSION sys137	DATE 1978 Nov 6 14:29:22\n";/* error messages */MSG	badopt		= "bad option(s)";MSG	mailmsg		= "you have mail\n";MSG	nospace		= "no space";MSG	synmsg		= "syntax error";MSG	badnum		= "bad number";MSG	badparam	= "parameter not set";MSG	badsub		= "bad substitution";MSG	badcreate	= "cannot create";MSG	illegal		= "illegal io";MSG	restricted	= "restricted";MSG	piperr		= "cannot make pipe";MSG	badopen		= "cannot open";MSG	coredump	= " - core dumped";MSG	arglist		= "arg list too long";MSG	txtbsy		= "text busy";MSG	toobig		= "too big";MSG	badexec		= "cannot execute";MSG	notfound	= "not found";MSG	badfile		= "bad file number";MSG	badshift	= "cannot shift";MSG	baddir		= "bad directory";MSG	badtrap		= "bad trap";MSG	wtfailed	= "is read only";MSG	notid		= "is not an identifier";/* built in names */MSG	pathname	= "PATH";MSG	homename	= "HOME";MSG	mailname	= "MAIL";MSG	fngname		= "FILEMATCH";MSG	ifsname		= "IFS";MSG	ps1name		= "PS1";MSG	ps2name		= "PS2";/* string constants */MSG	nullstr		= "";MSG	sptbnl		= " \t\n";MSG	defpath		= ":/bin:/usr/bin";MSG	colon		= ": ";MSG	minus		= "-";MSG	endoffile	= "end of file";MSG	unexpected 	= " unexpected";MSG	atline		= " at line ";MSG	devnull		= "/dev/null";MSG	execpmsg	= "+ ";MSG	readmsg		= "> ";MSG	stdprompt	= "$ ";MSG	supprompt	= "# ";MSG	profile		= ".profile";/* tables */SYSTAB reserved {		{"in",		INSYM},		{"esac",	ESSYM},		{"case",	CASYM},		{"for",		FORSYM},		{"done",	ODSYM},		{"if",		IFSYM},		{"while",	WHSYM},		{"do",		DOSYM},		{"then",	THSYM},		{"else",	ELSYM},		{"elif",	EFSYM},		{"fi",		FISYM},		{"until",	UNSYM},		{ "{",		BRSYM},		{ "}",		KTSYM},		{0,	0},};STRING	sysmsg[] {		0,		"Hangup",		0,	/* Interrupt */		"Quit",		"Illegal instruction",		"Trace/BPT trap",		"IOT trap",		"EMT trap",		"Floating exception",		"Killed",		"Bus error",		"Memory fault",		"Bad system call",		0,	/* Broken pipe */		"Alarm call",		"Terminated",		"Signal 16",};MSG		export = "export";MSG		readonly = "readonly";SYSTAB	commands {		{"cd",		SYSCD},		{"read",	SYSREAD},/*		{"[",		SYSTST},*/		{"set",		SYSSET},		{":",		SYSNULL},		{"trap",	SYSTRAP},		{"login",	SYSLOGIN},		{"wait",	SYSWAIT},		{"eval",	SYSEVAL},		{".",		SYSDOT},		{"newgrp",	SYSLOGIN},		{readonly,	SYSRDONLY},		{export,	SYSXPORT},		{"chdir",	SYSCD},		{"break",	SYSBREAK},		{"continue",	SYSCONT},		{"shift",	SYSSHFT},		{"exit",	SYSEXIT},		{"exec",	SYSEXEC},		{"times",	SYSTIMES},		{"umask",	SYSUMASK},		{0,	0},};