* fix emacs [ tabcompletion bug

XXX it's probably a bug in vi mode too, it just doesn't show
* bring manual page and reality into closer sync'd state
* sort ulimits

edit.c

@@ -1,4 +1,4 @@
-/**	$MirOS: src/bin/mksh/edit.c,v 1.3 2005/05/23 16:23:18 tg Exp $ */
+/**	$MirOS: src/bin/mksh/edit.c,v 1.4 2005/05/25 23:31:05 tg Exp $ */
 /*	$OpenBSD: edit.c,v 1.29 2005/04/13 02:33:08 deraadt Exp $	*/
 /*	$OpenBSD: edit.h,v 1.8 2005/03/28 21:28:22 deraadt Exp $	*/
 /*	$OpenBSD: emacs.c,v 1.37 2005/03/30 17:16:37 deraadt Exp $	*/
@@ -10,7 +10,7 @@
 #include <ctype.h>
 #include <libgen.h>
 
-__RCSID("$MirOS: src/bin/mksh/edit.c,v 1.3 2005/05/23 16:23:18 tg Exp $");
+__RCSID("$MirOS: src/bin/mksh/edit.c,v 1.4 2005/05/25 23:31:05 tg Exp $");
 
 #define	BEL		0x07
 
@@ -72,8 +72,7 @@ x_init(void)
 
 	if (setsig(&sigtraps[SIGWINCH], x_sigwinch, SS_RESTORE_ORIG|SS_SHTRAP))
 		sigtraps[SIGWINCH].flags |= TF_SHELL_USES;
-	got_sigwinch = 1; /* force initial check */
+	check_sigwinch();	/* force initial check */
-	check_sigwinch();
 
 	x_init_emacs();
 }
@@ -88,7 +87,6 @@ x_sigwinch(int sig __attribute__((unused)))
 static void
 check_sigwinch(void)
 {
-	if (got_sigwinch) {
 		struct winsize ws;
 
 		got_sigwinch = 0;
@@ -112,7 +110,6 @@ check_sigwinch(void)
 				setint(vp, (long) ws.ws_row);
 		}
 }
-}
 
 /*
  * read an edited command line
@@ -426,6 +423,9 @@ x_file_glob(int flags __attribute__((unused)), const char *str,
 			escaping = 1;
 			continue;
 		}
+		/* specially escape escaped [ for globbing */
+		if (escaping && toglob[i] == '[')
+			toglob[idx++] = QCHAR;
 
 		toglob[idx] = toglob[i];
 		idx++;
@@ -440,7 +440,7 @@ x_file_glob(int flags __attribute__((unused)), const char *str,
 	s = pushs(SWSTR, ATEMP);
 	s->start = s->str = toglob;
 	source = s;
-	if (yylex(ONEWORD) != LWORD) {
+	if (yylex(ONEWORD|LQCHAR) != LWORD) {
 		source = sold;
 		internal_errorf(0, "fileglob: substitute error");
 		return 0;
@@ -877,7 +877,7 @@ x_escape(const char *s, size_t len, int (*putbuf_func) (const char *, size_t))
 	int rval=0;
 
 	for (add = 0, wlen = len; wlen - add > 0; add++) {
-		if (strchr("\\$()[]{}*&;#|<>\"'`", s[add]) || strchr(ifs, s[add])) {
+		if (strchr("\\$()[{}*&;#|<>\"'`", s[add]) || strchr(ifs, s[add])) {
 			if (putbuf_func(s, add) != 0) {
 				rval = -1;
 				break;
@@ -2473,6 +2473,7 @@ x_version(int c __attribute__((unused)))
 	int lim = x_lastcp() - xbp;
 	char *v = strdup(ksh_version + 4);
 
+	check_sigwinch();	/* mksh hack ;-) */
 	xbuf = xbp = xcp = v;
 	xend = xep = v + strlen(v);
 	x_redraw(lim);

funcs.c

@@ -1,4 +1,4 @@
-/**	$MirOS: src/bin/mksh/funcs.c,v 1.8 2005/05/25 13:46:00 tg Exp $ */
+/**	$MirOS: src/bin/mksh/funcs.c,v 1.9 2005/05/25 23:31:06 tg Exp $ */
 /*	$OpenBSD: c_ksh.c,v 1.27 2005/03/30 17:16:37 deraadt Exp $	*/
 /*	$OpenBSD: c_sh.c,v 1.29 2005/03/30 17:16:37 deraadt Exp $	*/
 /*	$OpenBSD: c_test.c,v 1.17 2005/03/30 17:16:37 deraadt Exp $	*/
@@ -13,7 +13,7 @@
 #include <ulimit.h>
 #endif
 
-__RCSID("$MirOS: src/bin/mksh/funcs.c,v 1.8 2005/05/25 13:46:00 tg Exp $");
+__RCSID("$MirOS: src/bin/mksh/funcs.c,v 1.9 2005/05/25 23:31:06 tg Exp $");
 
 int
 c_cd(char **wp)
@@ -2822,18 +2822,6 @@ c_ulimit(char **wp)
 		char	option;
 	} limits[] = {
 		/* Do not use options -H, -S or -a */
-#ifdef RLIMIT_CPU
-		{ "time(cpu-seconds)", RLIMIT, RLIMIT_CPU, RLIMIT_CPU,
-		    1, 't' },
-#endif
-#ifdef RLIMIT_TIME
-		{ "humantime(seconds)", RLIMIT, RLIMIT_TIME, RLIMIT_TIME,
-		    1, 'T' },
-#endif
-#ifdef RLIMIT_FSIZE
-		{ "file(blocks)", RLIMIT, RLIMIT_FSIZE, RLIMIT_FSIZE,
-		    512, 'f' },
-#endif
 #ifdef RLIMIT_CORE
 		{ "coredump(blocks)", RLIMIT, RLIMIT_CORE, RLIMIT_CORE,
 		    512, 'c' },
@@ -2842,9 +2830,13 @@ c_ulimit(char **wp)
 		{ "data(KiB)", RLIMIT, RLIMIT_DATA, RLIMIT_DATA,
 		    1024, 'd' },
 #endif
-#ifdef RLIMIT_STACK
+#ifdef RLIMIT_FSIZE
-		{ "stack(KiB)", RLIMIT, RLIMIT_STACK, RLIMIT_STACK,
+		{ "file(blocks)", RLIMIT, RLIMIT_FSIZE, RLIMIT_FSIZE,
-		    1024, 's' },
+		    512, 'f' },
+#endif
+#ifdef RLIMIT_LOCKS
+		{ "flocks", RLIMIT, RLIMIT_LOCKS, RLIMIT_LOCKS,
+		    -1, 'L' },
 #endif
 #ifdef RLIMIT_MEMLOCK
 		{ "lockedmem(KiB)", RLIMIT, RLIMIT_MEMLOCK, RLIMIT_MEMLOCK,
@@ -2862,6 +2854,18 @@ c_ulimit(char **wp)
 		{ "processes", RLIMIT, RLIMIT_NPROC, RLIMIT_NPROC,
 		    1, 'p' },
 #endif
+#ifdef RLIMIT_STACK
+		{ "stack(KiB)", RLIMIT, RLIMIT_STACK, RLIMIT_STACK,
+		    1024, 's' },
+#endif
+#ifdef RLIMIT_TIME
+		{ "humantime(seconds)", RLIMIT, RLIMIT_TIME, RLIMIT_TIME,
+		    1, 'T' },
+#endif
+#ifdef RLIMIT_CPU
+		{ "time(cpu-seconds)", RLIMIT, RLIMIT_CPU, RLIMIT_CPU,
+		    1, 't' },
+#endif
 #ifdef RLIMIT_VMEM
 		{ "vmemory(KiB)", RLIMIT, RLIMIT_VMEM, RLIMIT_VMEM,
 		    1024, 'v' },
@@ -2869,10 +2873,6 @@ c_ulimit(char **wp)
 #ifdef RLIMIT_SWAP
 		{ "swap(KiB)", RLIMIT, RLIMIT_SWAP, RLIMIT_SWAP,
 		    1024, 'w' },
-#endif
-#ifdef RLIMIT_LOCKS
-		{ "flocks", RLIMIT, RLIMIT_LOCKS, RLIMIT_LOCKS,
-		    -1, 'L' },
 #endif
 		{ NULL, 0, 0, 0, 0, 0 }
 	};

lex.c

@@ -1,11 +1,11 @@
-/**	$MirOS: src/bin/mksh/lex.c,v 1.1 2005/05/23 03:06:08 tg Exp $ */
+/**	$MirOS: src/bin/mksh/lex.c,v 1.2 2005/05/25 23:31:07 tg Exp $ */
 /*	$OpenBSD: lex.c,v 1.36 2005/03/30 17:16:37 deraadt Exp $	*/
 
 #include "sh.h"
 #include <ctype.h>
 #include <libgen.h>
 
-__RCSID("$MirOS: src/bin/mksh/lex.c,v 1.1 2005/05/23 03:06:08 tg Exp $");
+__RCSID("$MirOS: src/bin/mksh/lex.c,v 1.2 2005/05/25 23:31:07 tg Exp $");
 
 /* Structure to keep track of the lexing state and the various pieces of info
  * needed for each particular state.
@@ -342,6 +342,13 @@ yylex(int cf)
 					}
 				}
 				break;
+			case QCHAR:
+				if (cf & LQCHAR) {
+					*wp++ = QCHAR;
+					*wp++ = getsc();
+					break;
+				}
+				/* FALLTHRU */
 			default:
 				*wp++ = CHAR, *wp++ = c;
 			}

main.c

@@ -1,4 +1,4 @@
-/**	$MirOS: src/bin/mksh/main.c,v 1.6 2005/05/25 13:46:01 tg Exp $ */
+/**	$MirOS: src/bin/mksh/main.c,v 1.7 2005/05/25 23:31:07 tg Exp $ */
 /*	$OpenBSD: main.c,v 1.38 2005/03/30 17:16:37 deraadt Exp $	*/
 /*	$OpenBSD: tty.c,v 1.8 2005/03/30 17:16:37 deraadt Exp $	*/
 /*	$OpenBSD: io.c,v 1.21 2005/03/30 17:16:37 deraadt Exp $	*/
@@ -10,7 +10,7 @@
 #include <ctype.h>
 #include <pwd.h>
 
-__RCSID("$MirOS: src/bin/mksh/main.c,v 1.6 2005/05/25 13:46:01 tg Exp $");
+__RCSID("$MirOS: src/bin/mksh/main.c,v 1.7 2005/05/25 23:31:07 tg Exp $");
 
 extern char **environ;
 
@@ -49,8 +49,7 @@ static const char *initcoms [] = {
 	 /* this is what at&t ksh seems to track, with the addition of emacs */
 	"alias", "-tU",
 	  "cat", "cc", "chmod", "cp", "date", "ed", "emacs", "grep", "ls",
-	  "mail", "make", "mv", "pr", "rm", "sed", "sh", "vi", "who",
+	  "make", "mv", "pr", "rm", "sed", "sh", "vi", "who", NULL,
-	  NULL,
 	NULL
 };
 

mksh.1

@@ -1,13 +1,11 @@
-.\" $MirOS: src/bin/mksh/mksh.1,v 1.4 2005/05/25 14:15:40 tg Exp $
+.\" $MirOS: src/bin/mksh/mksh.1,v 1.5 2005/05/25 23:31:07 tg Exp $
 .\" $OpenBSD: ksh.1,v 1.98 2005/05/12 09:18:24 jmc Exp $
 .\" $OpenBSD: sh.1tbl,v 1.53 2004/12/10 01:56:56 jaredy Exp $
-.\"
+.\"-
-.\"	Public Domain
-.\"
 .Dd May 22, 2005
 .Dt MKSH 1
 .Os MirOS
-.\" define Mx macro for portable mksh, just in case...
+.\" this macro only exists in MirNroff by default
 .de Mx
 .nr cF \\n(.f
 .nr cZ \\n(.s
@@ -202,7 +200,8 @@ In the absence of fatal errors,
 the exit status is that of the last command executed, or zero, if no
 command is executed.
 .Ss Command syntax
-The shell begins parsing its input by breaking it into
+The shell begins parsing its input by removing any backslash-newline
+combinations, then breaking it into
 .Em words .
 Words, which are sequences of characters, are delimited by unquoted whitespace
 characters (space, tab, and newline) or meta-characters
@@ -1184,6 +1183,10 @@ If
 is omitted, the string
 .Dq parameter null or not set
 is used instead.
+Currently a bug, if
+.Ar word
+is a variable which expands to the null string, the
+error message is also printed.
 .El
 .Pp
 In the above modifiers, the
@@ -1487,8 +1490,7 @@ colon, or two adjacent colons, is treated as a
 .Sq \&.
 (the current directory).
 .It Ev PGRP
-The current process group, see
+The current process group (read-only).
-.Xr getpgrp 2 .
 .It Ev PPID
 The process ID of the shell's parent (read-only).
 .It Ev PS1
@@ -1916,7 +1918,8 @@ escapes for
 .Ql ` ,
 .Ql \e ,
 and
-.Ql \enewline .
+.Ql \enewline ;
+any backslash preceding double quotes is removed.
 If multiple here documents are used on the same command line, they are saved in
 order.
 .It \*(Lt\*(Lt- Ar marker
@@ -2026,11 +2029,13 @@ integers may be prefixed with
 .Sq 0X
 or
 .Sq 0x
-(specifying base 16), similar to AT&T ksh,
+(specifying base 16), similar to AT&T
+.Nm ksh ,
 or
 .Sq 0
-(base 8), as an mksh extension,
+(base 8), as an
-in all forms of arithmetic expressions,
+.Nm
+extension, in all forms of arithmetic expressions,
 except as numeric arguments to the
 .Ic test
 command.
@@ -2165,8 +2170,8 @@ Some notes concerning co-processes:
 .It
 The only way to close the co-process's input (so the co-process reads an
 end-of-file) is to redirect the input to a numbered file descriptor and then
-close that file descriptor e.g.\&
+close that file descriptor:
-.Ic exec 3\*(Gt&p; exec 3\*(Gt&- .
+.Ic exec 3\*(Gt&p; exec 3\*(Gt&-
 .It
 In order for co-processes to share a common output, the shell must keep the
 write portion of the output pipe open.
@@ -2470,7 +2475,8 @@ argument to the
 .Fl t
 test may be left out and defaults to 1).
 .It
-Tilde expansion after equal signs is disabled.
+Tilde expansion after equal signs (not assignments) is disabled,
+although not strictly forbidden by POSIX, for consistency with other shells.
 .El
 .Ss Strict Bourne shell mode
 When the
@@ -2508,6 +2514,15 @@ Sequences of
 .Sq ((...))
 are not interpreted as arithmetic expressions.
 .El
+.Pp
+This does not make
+.Nm
+a real bourne shell emulation, though.
+Access to many enhanced features is still available, and
+.Ql ^
+as synonym for
+.Ql |
+has probably not been in use since the 1980s anyway.
 .Ss Command execution
 After evaluation of command-line arguments, redirections, and parameter
 assignments, the type of command is determined: a special built-in, a
@@ -3795,7 +3810,7 @@ characters), or if it is a unary operator like
 or
 .Sq Fl n .
 Use tests like
-.Dq if \&[ \&"X$foo\&" = Xbar \&]
+.Dq if \&[ x\&"$foo\&" = x"bar" \&]
 instead.
 .Pp
 .It Xo
@@ -4070,7 +4085,7 @@ except zero padding is used instead of space padding.
 .Pp
 .It Xo
 .Ic ulimit
-.Op Fl acdfHlmnpSsTtv
+.Op Fl acdfHLlmnpSsTtvw
 .Op Ar value
 .Xc
 Display or set process limits.
@@ -4108,6 +4123,8 @@ blocks on files written by the shell and its child processes (files of any
 size may be read).
 .It Fl H
 Set the hard limit only (the default is to set both hard and soft limits).
+.It Fl L Ar n
+Control flocks; documentation is missing.
 .It Fl l Ar n
 Impose a limit of
 .Ar n
@@ -4142,6 +4159,10 @@ CPU seconds spent in user mode to be used by each process.
 Impose a limit of
 .Ar n
 kibibytes on the amount of virtual memory used.
+.It Fl w Ar n
+Impose a limit of
+.Ar n
+kibibytes on the amount of swap space used.
 .El
 .Pp
 As far as
@@ -4473,7 +4494,7 @@ an
 (if the command can be prefixed with a count); and any keys the command is
 bound to by default, written using caret notation
 e.g. the ASCII ESC character is written as ^[.
-^[A-Z] sequences are not case sensitive.
+These control sequences are not case sensitive.
 A count prefix for a command is entered using the sequence
 .Pf ^[ Ns Ar n ,
 where
@@ -4547,11 +4568,6 @@ is appended.
 If there is no command or file name with the current partial word
 as its prefix, a bell character is output (usually causing a beep to be
 sounded).
-.\" XXX
-Currently being considered a bug,
-if the file name contains \fB[\fR or \fB]\fR, it cannot be completed, even if
-the character is escaped, in \fBemacs\fR mode.
-This surprisingly works in \fBvi\fR mode; please submit a fix.
 .It complete-command: ^X^[
 Automatically completes as much as is unique of the command name having the
 partial word up to the cursor as its prefix, as in the
@@ -4569,6 +4585,7 @@ If only one completion is possible,
 match as in the
 .Ic complete
 command above.
+Note that ^I is usually generated by the TAB (tabulator) key.
 .It Xo delete-char-backward:
 .Op Ar n
 .No ERASE , ^? , ^H
@@ -4826,13 +4843,6 @@ colon
 commands).
 .El
 .Pp
-Note that the ^X stands for control-X; also
-.Aq esc ,
-.Aq space ,
-and
-.Aq tab
-are used for escape, space, and tab, respectively (no kidding).
-.Pp
 Like
 .Xr vi 1 ,
 there are two modes:
@@ -5367,6 +5377,7 @@ Shell database.
 .Xr dup 2 ,
 .Xr execve 2 ,
 .Xr getgid 2 ,
+.Xr getpgrp 2 ,
 .Xr getuid 2 ,
 .Xr open 2 ,
 .Xr pipe 2 ,
@@ -5425,9 +5436,3 @@ The
 author is aware of this and there is no need to report it.
 This does not work because the last command of a pipe sequence
 is run in a subshell.
-.Pp
-For another known bug, refer to the comment above the
-.Em complete-command
-paragraph in the section
-.Sx Emacs editing mode
-above.

sh.h

@@ -1,4 +1,4 @@
-/**	$MirOS: src/bin/mksh/sh.h,v 1.7 2005/05/25 13:46:01 tg Exp $ */
+/**	$MirOS: src/bin/mksh/sh.h,v 1.8 2005/05/25 23:31:08 tg Exp $ */
 /*	$OpenBSD: sh.h,v 1.27 2005/03/28 21:33:04 deraadt Exp $	*/
 /*	$OpenBSD: shf.h,v 1.5 2005/03/30 17:16:37 deraadt Exp $	*/
 /*	$OpenBSD: table.h,v 1.6 2004/12/18 20:55:52 millert Exp $	*/
@@ -995,6 +995,7 @@ typedef union {
 #define ESACONLY	BIT(7)	/* only accept esac keyword */
 #define CMDWORD		BIT(8)	/* parsing simple command (alias related) */
 #define HEREDELIM	BIT(9)	/* parsing <<,<<- delimiter */
+#define	LQCHAR		BIT(10)	/* source string contains QCHAR */
 
 #define	HERES	10		/* max << in line */