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remove (' from chars that can follow ${' command substitution; fix for empty command substitutions; fix for adding incomplete command substitutions to history; fix for function source file with -c command; fix for EOF at PS2 when ignoreeof is set

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This commit is contained in:
Chet Ramey
2023-05-26 17:29:41 -04:00
parent 782af56204
commit e252024788
29 changed files with 10680 additions and 10512 deletions
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doc/bashref.html
+10 -11
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@@ -4,9 +4,9 @@
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<!-- This text is a brief description of the features that are present in
the Bash shell (version 5.2, 14 May 2023).
the Bash shell (version 5.2, 23 May 2023).
This is Edition 5.2, last updated 14 May 2023,
This is Edition 5.2, last updated 23 May 2023,
of The GNU Bash Reference Manual,
for Bash, Version 5.2.
@@ -77,10 +77,10 @@ Next: <a href="#Introduction" accesskey="n" rel="next">Introduction</a>, Previou
<span id="Bash-Features-1"></span><h1 class="top">Bash Features</h1>
<p>This text is a brief description of the features that are present in
the Bash shell (version 5.2, 14 May 2023).
the Bash shell (version 5.2, 23 May 2023).
The Bash home page is <a href="http://www.gnu.org/software/bash/">http://www.gnu.org/software/bash/</a>.
</p>
<p>This is Edition 5.2, last updated 14 May 2023,
<p>This is Edition 5.2, last updated 23 May 2023,
of <cite>The GNU Bash Reference Manual</cite>,
for <code>Bash</code>, Version 5.2.
</p>
@@ -3085,7 +3085,7 @@ the parentheses make up the command; none are treated specially.
and captures its output, again with trailing newlines removed.
</p>
<p>The character <var>c</var> following the open brace must be a space, tab,
newline, &lsquo;<samp>(</samp>&rsquo;, or &lsquo;<samp>|</samp>&rsquo;, and the close brace must be in a position
newline, or &lsquo;<samp>|</samp>&rsquo;, and the close brace must be in a position
where a reserved word may appear (i.e., preceded by a command terminator
such as semicolon).
Bash allows the close brace to be joined to the remaining characters in
@@ -3104,11 +3104,8 @@ function is executing, and the <code>return</code> builtin forces
however, the rest of the execution environment,
including the positional parameters, is shared with the caller.
</p>
<p>If the first character following the open brace is a &lsquo;<samp>(</samp>&rsquo;,
<var>command</var> is executed in a subshell, and <var>command</var> must be
terminated by a &lsquo;<samp>)</samp>&rsquo;. This is similar to the <code>(</code> compound
command (see <a href="#Command-Grouping">Grouping Commands</a>).
If the first character is a &lsquo;<samp>|</samp>&rsquo;, the construct expands to the
<p>If the first character following the open brace
is a &lsquo;<samp>|</samp>&rsquo;, the construct expands to the
value of the <code>REPLY</code> shell variable after <var>command</var> executes,
without removing any trailing newlines,
and the standard output of <var>command</var> remains the same as in the
@@ -3122,7 +3119,9 @@ as with any local variable.
shell variable <code>X</code> unchanged in the current execution environment:
</p>
<div class="example">
<pre class="example">${ local X=12345 ; echo $X; }
<pre class="example">
${ local X=12345 ; echo $X; }
</pre></div>
<p>(not declaring <code>X</code> as local would modify its value in the current