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commit bash-20100609 snapshot

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Chet Ramey
2011-12-12 22:00:38 -05:00
parent 220537f23e
commit 67362c6091
55 changed files with 4923 additions and 4423 deletions
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doc/bashref.texi
+17 -3
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@@ -1765,9 +1765,13 @@ If @var{length} is omitted, expands to the substring of
(@pxref{Shell Arithmetic}).
This is referred to as Substring Expansion.
@var{length} must evaluate to a number greater than or equal to zero.
If @var{offset} evaluates to a number less than zero, the value
is used as an offset from the end of the value of @var{parameter}.
If @var{length} evaluates to a number less than zero, and @var{parameter}
is not @samp{@@} and not an indexed or associative array, it is interpreted
as an offset from the end of the value of @var{parameter} rather than
a number of characters, and the expansion is the characters between the
two offsets.
If @var{parameter} is @samp{@@}, the result is @var{length} positional
parameters beginning at @var{offset}.
If @var{parameter} is an indexed array name subscripted
@@ -4505,6 +4509,13 @@ changes its behavior to that of version 4.0 with respect to locale-specific
string comparison when using the conditional command's < and > operators
and the effect of interrupting a command list.
@item compat41
If set, Bash, when in posix mode, treats a single quote in a double-quoted
parameter expansion as a special character. The single quotes must match
(an even number) and the characters between the single quotes are considered
quoted. This is the behavior of @sc{posix} mode through version 4.1.
The default Bash behavior remains as in previous versions.
@item dirspell
If set, Bash
attempts spelling correction on directory names during word completion
@@ -6197,8 +6208,11 @@ name[@var{subscript}]=@var{value}
@noindent
The @var{subscript}
is treated as an arithmetic expression that must evaluate to a number
greater than or equal to zero. To explicitly declare an array, use
is treated as an arithmetic expression that must evaluate to a number.
If @var{subscript} evaluates to a number less than zero, it is used as
an offset from one greater than the array's maximum index (so a subcript
of -1 refers to the last element of the array).
To explicitly declare an array, use
@example
declare -a @var{name}
@end example