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bindable readline command to perform spelling correction on a word

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Chet Ramey
2021-03-18 11:48:48 -04:00
parent 83c4ad27c7
commit 6be3a741cb
16 changed files with 1607 additions and 1370 deletions
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doc/bashref.texi
+53 -15
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@@ -1129,7 +1129,7 @@ This means that in the pattern @samp{xxx.txt}, the @samp{.} matches any
character in the string (its usual regular expression meaning), but in the
pattern @samp{"xxx.txt"} it can only match a literal @samp{.}.
Shell programmers should take special care with backslashes, since backslashes
are used both by the shell and regular expressions to remove the special
are used by both the shell and regular expressions to remove the special
meaning from the following character.
The following two sets of commands are @emph{not} equivalent:
@example
@@ -3573,6 +3573,11 @@ If a non-empty directory name from @env{CDPATH} is used, or if
successful, the absolute pathname of the new working directory is
written to the standard output.
If the directory change is successful, @code{cd} sets the value of the
@env{PWD} environment variable to the new directory name, and sets the
@env{OLDPWD} environment variable to the value of the current working
directory before the change.
The return status is zero if the directory is successfully changed,
non-zero otherwise.
@@ -7501,11 +7506,16 @@ with zero.
popd [-n] [+@var{N} | -@var{N}]
@end example
When no arguments are given, @code{popd}
removes the top directory from the stack and
performs a @code{cd} to the new top directory.
Removes elements from the directory stack.
The elements are numbered from 0 starting at the first directory
listed with @code{dirs}; that is, @code{popd} is equivalent to @code{popd +0}.
listed by @code{dirs};
that is, @code{popd} is equivalent to @code{popd +0}.
When no arguments are given, @code{popd}
removes the top directory from the stack and changes to
the new top directory.
Arguments, if supplied, have the following meanings:
@table @code
@item -n
@@ -7513,22 +7523,37 @@ Suppresses the normal change of directory when removing directories
from the stack, so that only the stack is manipulated.
@item +@var{N}
Removes the @var{N}th directory (counting from the left of the
list printed by @code{dirs}), starting with zero.
list printed by @code{dirs}), starting with zero, from the stack.
@item -@var{N}
Removes the @var{N}th directory (counting from the right of the
list printed by @code{dirs}), starting with zero.
list printed by @code{dirs}), starting with zero, from the stack.
@end table
If the top element of the directory stack is modified, and
the @option{-n} option was not supplied, @code{popd} uses the @code{cd}
builtin to change to the directory at the top of the stack.
If the @code{cd} fails, @code{popd} returns a non-zero value.
Otherwise, @code{popd} returns an unsuccessful status if
an invalid option is encountered, the directory stack
is empty, or a non-existent directory stack entry is specified.
If the @code{popd} command is successful, a @code{dirs}
is performed as well, and the return status is 0.
@btindex pushd
@item pushd
@example
pushd [-n] [@var{+N} | @var{-N} | @var{dir}]
@end example
Save the current directory on the top of the directory stack
and then @code{cd} to @var{dir}.
With no arguments, @code{pushd} exchanges the top two directories
and makes the new top the current directory.
Adds a directory to the top of the directory stack, or rotates
the stack, making the new top of the stack the current working
directory.
With no arguments, @code{pushd} exchanges the top two elements
of the directory stack.
Arguments, if supplied, have the following meanings:
@table @code
@item -n
@@ -7543,10 +7568,22 @@ Brings the @var{N}th directory (counting from the right of the
list printed by @code{dirs}, starting with zero) to the top of
the list by rotating the stack.
@item @var{dir}
Makes @var{dir} be the top of the stack, making
it the new current directory as if it had been supplied as an argument
to the @code{cd} builtin.
Makes @var{dir} be the top of the stack.
@end table
After the stack has been modified, if the @option{-n} option was not
supplied, @code{pushd} uses the @code{cd} builtin to change to the
directory at the top of the stack.
If the @code{cd} fails, @code{pushd} returns a non-zero value.
Otherwise, if no arguments are supplied, @code{pushd} returns 0 unless the
directory stack is empty.
When rotating the directory stack, @code{pushd} returns 0 unless
the directory stack is empty or a non-existent directory stack element
is specified.
If the @code{pushd} command is successful, a @code{dirs} is performed as well.
@end table
@node Controlling the Prompt
@@ -7604,7 +7641,8 @@ The version of Bash (e.g., 2.00)
@item \V
The release of Bash, version + patchlevel (e.g., 2.00.0)
@item \w
The current working directory, with @env{$HOME} abbreviated with a tilde
The value of the @code{PWD} shell variable (@env{$PWD}),
with @env{$HOME} abbreviated with a tilde
(uses the @env{$PROMPT_DIRTRIM} variable).
@item \W
The basename of @env{$PWD}, with @env{$HOME} abbreviated with a tilde.