document the declaration utility stuff and the new \builtin
also, make global a declaration utility
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5
funcs.c
5
funcs.c
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@ -38,7 +38,7 @@
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#endif
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#endif
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__RCSID("$MirOS: src/bin/mksh/funcs.c,v 1.326 2017/03/12 02:04:13 tg Exp $");
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__RCSID("$MirOS: src/bin/mksh/funcs.c,v 1.327 2017/03/12 02:31:01 tg Exp $");
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#if HAVE_KILLPG
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/*
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@ -117,10 +117,11 @@ const struct builtin mkshbuiltins[] = {
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{Tfalse, c_false},
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{"fc", c_fc},
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{Tgetopts, c_getopts},
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{"=global", c_typeset},
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{"^=global", c_typeset},
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{Tjobs, c_jobs},
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{"kill", c_kill},
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{"let", c_let},
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/* deprecated, to be replaced by \\builtin let */
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{"let]", c_let},
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{"print", c_print},
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{"pwd", c_pwd},
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49
mksh.1
49
mksh.1
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@ -1,4 +1,4 @@
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.\" $MirOS: src/bin/mksh/mksh.1,v 1.425 2017/03/11 23:10:41 tg Exp $
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.\" $MirOS: src/bin/mksh/mksh.1,v 1.426 2017/03/12 02:31:02 tg Exp $
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.\" $OpenBSD: ksh.1,v 1.160 2015/07/04 13:27:04 feinerer Exp $
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.\"-
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.\" Copyright © 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
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@ -76,7 +76,7 @@
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.\" with -mandoc, it might implement .Mx itself, but we want to
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.\" use our own definition. And .Dd must come *first*, always.
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.\"
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.Dd $Mdocdate: March 11 2017 $
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.Dd $Mdocdate: March 12 2017 $
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.\"
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.\" Check which macro package we use, and do other -mdoc setup.
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.\"
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@ -2185,9 +2185,18 @@ files are created in
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The effective user id of the shell.
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.El
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.Ss Tilde expansion
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Tilde expansion which is done in parallel with parameter substitution, is done
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on words starting with an unquoted
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Tilde expansion, which is done in parallel with parameter substitution,
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is applied to words starting with an unquoted
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.Ql \*(TI .
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In parameter assignments (such as those preceding a simple-command or those
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occurring in the arguments of a declaration utility), tilde expansion is done
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after any assignment (i.e. after the equals sign) or after an unquoted colon
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.Pq Ql \&: ;
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login names are also delimited by colons.
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The Korn shell, except in POSIX mode, always expands tildes after unquoted
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equals signs, not just in assignment context (see below), and enables tab
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completion for tildes after all unquoted colons during command line editing.
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.Pp
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The characters following the tilde, up to the first
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.Ql / ,
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if any, are assumed to be a login name.
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@ -2208,21 +2217,6 @@ If the login name is not found in the password file or
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if any quoting or parameter substitution occurs in the login name, no
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substitution is performed.
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.Pp
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In parameter assignments
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(such as those preceding a simple-command or those occurring
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in the arguments of
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.Ic alias ,
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.Ic export ,
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.Ic global ,
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.Ic readonly
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and
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.Ic typeset ) ,
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tilde expansion is done after any assignment
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(i.e. after the equals sign)
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or after an unquoted colon
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.Pq Ql \&: ;
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login names are also delimited by colons.
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.Pp
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The home directory of previously expanded login names are cached and re-used.
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The
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.Ic alias Fl d
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@ -3217,6 +3211,18 @@ Execute the built-in command
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.Ar command .
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.Pp
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.It Xo
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.Ic \ebuiltin
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.Ar command Op Ar arg ...
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.Xc
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Same as
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.Ic builtin .
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Additionally acts as declaration utility forwarder, i.e. this is a
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declaration utility (see
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.Sx Tilde expansion )
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.No iff Ar command
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is a declaration utility.
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.Pp
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.It Xo
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.Ic cat
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.Op Fl u
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.Op Ar
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@ -3346,6 +3352,7 @@ cannot be a shell function;
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and secondly, special built-in commands lose their specialness
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(i.e. redirection and utility errors do not cause the shell to
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exit, and command assignments are not permanent).
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The declaration utility property is not reset.
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.Pp
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If the
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.Fl p
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@ -3480,6 +3487,7 @@ parameter.
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Sets the export attribute of the named parameters.
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Exported parameters are passed in the environment to executed commands.
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If values are specified, the named parameters are also assigned.
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This is a declaration utility.
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.Pp
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If no parameters are specified, all parameters with the export attribute
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set are printed one per line; either their names, or, if a
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@ -3999,6 +4007,7 @@ exec 3\*(Gt&p; exec 3\*(Gt&\-
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.Ar ... Oc
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.Xc
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Sets the read-only attribute of the named parameters.
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This is a declaration utility.
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If values are given,
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parameters are set to them before setting the attribute.
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Once a parameter is
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@ -4253,7 +4262,6 @@ Background jobs are run with lower priority.
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.It Fl o Ic braceexpand
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Enable brace expansion (a.k.a. alternation).
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This is enabled by default.
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If disabled, tilde expansion after an equals sign is disabled as a side effect.
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.It Fl o Ic emacs
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Enable BRL emacs-like command-line editing (interactive shells only); see
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.Sx Emacs editing mode .
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@ -4809,6 +4817,7 @@ A command that exits with a zero value.
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.Ar ... Oc
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.Xc
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Display or set parameter attributes.
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This is a declaration utility.
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With no
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.Ar name
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arguments, parameter attributes are displayed; if no options are used, the
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