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fix for programmable completion functions setting traps on signals that readline handles

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This commit is contained in:
Chet Ramey
2022-12-06 10:41:41 -05:00
parent 198210c58f
commit 237c32ba16
28 changed files with 3223 additions and 3018 deletions
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doc/bash.html
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@@ -3,7 +3,7 @@
</HEAD>
<BODY><TABLE WIDTH=100%>
<TR>
<TH ALIGN=LEFT width=33%>BASH(1)<TH ALIGN=CENTER width=33%>2022 September 19<TH ALIGN=RIGHT width=33%>BASH(1)
<TH ALIGN=LEFT width=33%>BASH(1)<TH ALIGN=CENTER width=33%>2022 December 2<TH ALIGN=RIGHT width=33%>BASH(1)
</TR>
</TABLE>
<BR><A HREF="#index">Index</A>
@@ -1586,7 +1586,7 @@ See the description of
<B>shopt</B>
below under
<FONT SIZE=-1><B>SHELL</B>BUILTIN<B>COMMANDS</B>.
<FONT SIZE=-1><B>SHELL BUILTIN COMMANDS</B>.
</FONT>
<A NAME="lbAT">&nbsp;</A>
@@ -4994,7 +4994,7 @@ Matches anything except one of the given patterns
<P>
The<B>extglob</B> option changes the behavior of the parser, since the
The <B>extglob</B> option changes the behavior of the parser, since the
parentheses are normally treated as operators with syntactic meaning.
To ensure that extended matching patterns are parsed correctly, make sure
that <B>extglob</B> is enabled before parsing constructs containing the
@@ -13632,16 +13632,16 @@ sort lexicographically using ASCII ordering.
<DD>
Print the accumulated user and system times for the shell and
for processes run from the shell. The return status is 0.
<DT><B>trap</B> [<B>-lp</B>] [[<I>arg</I>] <I>sigspec</I> ...]<DD>
The command
<I>arg</I>
<DT><B>trap</B> [<B>-lp</B>] [[<I>action</I>] <I>sigspec</I> ...]<DD>
The
<I>action</I>
is to be read and executed when the shell receives
is a command that is read and executed when the shell receives
signal(s)
<I>sigspec</I>.
If
<I>arg</I>
<I>action</I>
is absent (and there is a single <I>sigspec</I>) or
<B>-</B>,
@@ -13650,33 +13650,44 @@ each specified signal is
reset to its original disposition (the value it had
upon entrance to the shell).
If
<I>arg</I>
<I>action</I>
is the null string the signal specified by each
<I>sigspec</I>
is ignored by the shell and by the commands it invokes.
<P>
If no arguments are supplied,
<B>trap</B>
displays the actions associated with each trapped signal
as a set of <B>trap</B> commands
that can be reused as shell input to
restore the current signal dispositions.
If
<I>arg</I>
is not present and
<B>-p</B>
has been supplied, then the trap commands associated with each
<I>sigspec</I>
are displayed.
If no arguments are supplied or if only
<B>-p</B>
is given,
<B>trap</B>
and
<I>action</I>
is not present,
then <B>trap</B> displays the actions associated with each
<I>sigspec</I>
or, if none are supplied, for all trapped signals,
as a set of <B>trap</B> commands
that can be reused as shell input to
restore the current signal dispositions.
<P>
prints the list of commands associated with each signal.
The
<B>-l</B>
option causes the shell to print a list of signal names and
option causes <B>trap</B> to print a list of signal names and
their corresponding numbers.
Each
<I>sigspec</I>
@@ -13699,7 +13710,7 @@ is
</FONT>
(0) the command
<I>arg</I>
<I>action</I>
is executed on exit from the shell.
If a
@@ -13710,11 +13721,13 @@ is
</FONT>
the command
<I>arg</I>
<I>action</I>
is executed before every <I>simple command</I>, <I>for</I> command,
<I>case</I> command, <I>select</I> command, every arithmetic <I>for</I>
command, and before the first command executes in a shell function (see
<I>case</I> command, <I>select</I> command, (( arithmetic command,
[[ conditional command,
arithmetic <I>for</I> command, and before the first command executes
in a shell function (see
<FONT SIZE=-1><B>SHELL GRAMMAR</B>
</FONT>
@@ -13730,7 +13743,7 @@ is
</FONT>
the command
<I>arg</I>
<I>action</I>
is executed each time a shell function or a script executed with
the <B>.</B> or <B>source</B> builtins finishes executing.
@@ -13745,7 +13758,7 @@ is
</FONT>
the command
<I>arg</I>
<I>action</I>
is executed whenever
a pipeline (which may consist of a single simple
@@ -13783,7 +13796,9 @@ These are the same conditions obeyed by the <B>errexit</B> (<B>-e</B>) option.
<P>
Signals ignored upon entry to the shell cannot be trapped or reset.
When the shell is not interactive,
signals ignored upon entry to the shell cannot be trapped or reset.
Interactive shells permit trapping signals ignored on entry.
Trapped signals that are not being ignored are reset to their original
values in a subshell or subshell environment when one is created.
The return status is false if any
@@ -14787,7 +14802,7 @@ There may be only one active coprocess at a time.
<HR>
<TABLE WIDTH=100%>
<TR>
<TH ALIGN=LEFT width=33%>GNU Bash 5.2<TH ALIGN=CENTER width=33%>2022 September 19<TH ALIGN=RIGHT width=33%>BASH(1)
<TH ALIGN=LEFT width=33%>GNU Bash 5.2<TH ALIGN=CENTER width=33%>2022 December 2<TH ALIGN=RIGHT width=33%>BASH(1)
</TR>
</TABLE>
<HR>
@@ -14893,7 +14908,7 @@ There may be only one active coprocess at a time.
<DT><A HREF="#lbDI">BUGS</A><DD>
</DL>
<HR>
This document was created by man2html from /usr/local/src/bash/bash-20220907/doc/bash.1.<BR>
Time: 19 September 2022 12:02:51 EDT
This document was created by man2html from /usr/local/src/bash/bash-20221202/doc/bash.1.<BR>
Time: 02 December 2022 17:01:20 EST
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