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emacs
emacs
Commits
6dfcbe31
Commit
6dfcbe31
authored
Apr 29, 2008
by
Stefan Monnier
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parent
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etc/NEWS
etc/NEWS
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lisp/ChangeLog
lisp/ChangeLog
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lisp/find-cmd.el
lisp/find-cmd.el
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etc/NEWS
View file @
6dfcbe31
...
...
@@ -1127,6 +1127,8 @@ forms to subroutines.
* New Packages for Lisp Programming in Emacs 23.1
** find-cmd.el can build `find' commands using lisp synax.
** The package isearch-multi.el has been added. It implements a new mode
`isearch-buffers-minor-mode' that allows isearch to search through
multiple buffers. In this mode a new variable
...
...
lisp/ChangeLog
View file @
6dfcbe31
2008-04-29 Phil Jackson <phil@shellarchive.co.uk>
* find-cmd.el: New file.
2008-04-29 Stefan Monnier <monnier@iro.umontreal.ca>
* minibuffer.el (completion-hilit-commonality): Remove leftover code.
...
...
lisp/find-cmd.el
0 → 100644
View file @
6dfcbe31
;;; find-cmd.el --- Build a valid find(1) command with sexps
;; Copyright (C) 2008 Free Software Foundation, Inc.
;; Author: Philip Jackson <phil@shellarchive.co.uk>
;; Version: 0.6
;; This file is part of GNU Emacs.
;; This program is free software; you can redistribute it and/or
;; modify it under the terms of the GNU General Public License as
;; published by the Free Software Foundation; either version 2, or (at
;; your option) any later version.
;; This program is distributed in the hope that it will be useful, but
;; WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
;; General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with this program ; see the file COPYING. If not, write to
;; the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.
;;; Commentary:
;; With this module you can build up a (hopefully) valid find(1)
;; string ready for the command line. For example:
;; (find-cmd '(prune (name ".svn" ".git" ".CVS"))
;; '(and (or (name "*.pl" "*.pm" "*.t")
;; (mtime "+1"))
;; (fstype "nfs" "ufs"))))
;; will become (un-wrapped):
;; "find '/home/phil/' \\( \\( -name '.svn' -or -name '.git' -or
;; -name '.CVS' \\) -prune -or -true \\) \\( \\( \\( -name '*.pl'
;; -or -name '*.pm' -or -name '*.t' \\) -or -mtime '+1' \\) -and \\(
;; -fstype 'nfs' -or -fstype 'ufs' \\) \\)"
(
eval-when-compile
(
require
'cl
))
(
defconst
find-constituents
'
((
and
.
find-and
)
(
not
.
find-not
)
(
or
.
find-or
)
(
a
.
find-and
)
(
n
.
find-not
)
(
o
.
find-or
)
(
prune
.
find-prune
)
;; switches
(
L
.
(
0
))
(
P
.
(
0
))
(
H
.
(
0
))
;; generic tests
(
amin
.
(
1
))
(
anewer
.
(
1
))
(
atime
.
(
1
))
(
cmin
.
(
1
))
(
cnewer
.
(
1
))
(
ctime
.
(
1
))
(
empty
.
(
0
))
(
false
.
(
0
))
(
fstype
.
(
1
))
(
gid
.
(
1
))
(
group
.
(
1
))
(
ilname
.
(
1
))
(
iname
.
(
1
))
(
inum
.
(
1
))
(
iwholename
.
(
1
))
(
iregex
.
(
1
))
(
links
.
(
1
))
(
lname
.
(
1
))
(
mmin
.
(
1
))
(
mtime
.
(
1
))
(
name
.
(
1
))
(
newer
.
(
1
))
(
nouser
.
(
0
))
(
nogroup
.
(
0
))
(
path
.
(
1
))
(
perm
.
(
0
))
(
regex
.
(
1
))
(
wholename
.
(
1
))
(
size
.
(
1
))
(
true
.
(
0
))
(
type
.
(
1
))
(
uid
.
(
1
))
(
used
.
(
1
))
(
user
.
(
1
))
(
xtype
.
(
nil
))
;; normal options (always true)
(
depth
.
(
0
))
(
maxdepth
.
(
1
))
(
mindepth
.
(
1
))
(
mount
.
(
0
))
(
noleaf
.
(
0
))
(
xdev
.
(
0
))
(
ignore_readdir_race
.
(
0
))
(
noignore_readdir_race
.
(
0
))
;; actions
(
delete
.
(
0
))
(
print0
.
(
0
))
(
printf
.
(
1
))
(
fprintf
.
(
2
))
(
print
.
(
0
))
(
fprint0
.
(
1
))
(
fprint
.
(
1
))
(
ls
.
(
0
))
(
fls
.
(
1
))
(
prune
.
(
0
))
(
quit
.
(
0
))
;; these need to be terminated with a ;
(
exec
.
(
1
find-command
t
))
(
ok
.
(
1
find-command
t
))
(
execdir
.
(
1
find-command
t
))
(
okdir
.
(
1
find-command
t
)))
"Holds details of each of the find options. The car of each
alist is the name. The cdr is minimum args, the function used
to join many occurences of the argument together, and whether or
not to leave quotes off the string (non-nil means the string will
be quoted)."
)
;;;###autoload
(
defun
find-cmd
(
&rest
subfinds
)
"Initiate the building of a find command. For exmple:
\(find-cmd '\(prune \(name \".svn\" \".git\" \".CVS\"\)\)
'\(and \(or \(name \"*.pl\" \"*.pm\" \"*.t\"\)
\(mtime \"+1\"\)\)
\(fstype \"nfs\" \"ufs\"\)\)\)\)
`default-directory' is used as the initial search path. The
result is a string that should be ready for the command line."
(
concat
"find "
(
shell-quote-argument
(
expand-file-name
default-directory
))
" "
(
cond
((
cdr
subfinds
)
(
mapconcat
'find-to-string
subfinds
""
))
(
t
(
find-to-string
(
car
subfinds
))))))
(
defun
find-and
(
form
)
"And FORMs together, so:
\(and \(mtime \"+1\"\) \(name \"something\"\)\)
will produce:
find . \\\( -mtime '+1' -and -name 'something' \\\)"
(
if
(
<
(
length
form
)
2
)
(
find-to-string
(
car
form
))
(
concat
"\\( "
(
mapconcat
'find-to-string
form
"-and "
)
"\\) "
)))
(
defun
find-or
(
form
)
"Or FORMs together, so:
\(or \(mtime \"+1\"\) \(name \"something\"\)\)
will produce:
find . \\\( -mtime '+1' -or -name 'something' \\\)"
(
if
(
<
(
length
form
)
2
)
(
find-to-string
(
car
form
))
(
concat
"\\( "
(
mapconcat
'find-to-string
form
"-or "
)
"\\) "
)))
(
defun
find-not
(
form
)
"Or FORMs together and prefix with a -not, so:
\(not \(mtime \"+1\"\) \(name \"something\"\)\)
will produce:
-not \\\( -mtime '+1' -or -name 'something' \\\)
If you wanted the FORMs -and(ed) together instead then this would
suffice:
\(not \(and \(mtime \"+1\"\) \(name \"something\"\)\)\)"
(
concat
"-not "
(
find-or
(
mapcar
'find-to-string
form
))))
(
defun
find-prune
(
form
)
"-or together FORM(s) postfix '-prune' and then -or that with a
-true, so:
\(prune \(name \".svn\" \".git\"\)\) \(name \"*.pm\"\)
will produce (unwrapped):
\\\( \\\( \\\( -name '.svn' -or -name '.git' \\\) /
-prune -or -true \\\) -and -name '*.pm' \\\)"
(
find-or
(
list
(
concat
(
find-or
(
mapcar
'find-to-string
form
))
(
find-generic
"prune"
))
(
find-generic
"true"
))))
(
defun
find-generic
(
option
&optional
oper
argcount
args
dont-quote
)
"This function allows an arbitrary string to be used as a
form. OPTION is the name of the form, OPER is the function used
to either OR or AND multiple results together. ARGCOUNT is the
minimum of args that OPTION can receive and ARGS are the
arguments for OPTION."
(
when
(
and
(
numberp
argcount
)
(
<
(
length
args
)
argcount
))
(
error
"'%s' needs at least %d arguments"
option
argcount
))
(
let
((
oper
(
or
oper
'find-or
)))
(
if
(
and
args
(
length
args
))
(
funcall
oper
(
mapcar
(
lambda
(
x
)
(
concat
"-"
option
(
if
dont-quote
(
concat
" "
x
" "
)
(
concat
" "
(
shell-quote-argument
x
)
" "
))))
args
))
(
concat
"-"
option
" "
))))
(
defun
find-command
(
form
)
"For each item in FORM add a terminating semi-colon and turn
them into valid switches. The result is -and(ed) together."
(
find-and
(
mapcar
(
lambda
(
x
)
(
concat
(
find-to-string
x
)
"\\; "
))
form
)))
(
defun
find-to-string
(
form
)
"Parse FORM to produce a set of valid find arguments."
(
cond
((
stringp
form
)
form
)
((
consp
form
)
(
let
((
option
(
cdr
(
assoc
(
car
form
)
find-constituents
))))
(
cond
((
and
(
symbolp
option
)
(
fboundp
option
))
(
funcall
option
(
cdr
form
)))
((
consp
option
)
(
let
((
option
(
symbol-name
(
car
form
)))
(
argcnt
(
car
option
))
(
oper
(
cadr
option
))
(
dont-quote
(
car
(
cddr
option
))))
(
find-to-string
(
find-generic
option
oper
argcnt
(
cdr
form
)
dont-quote
))))
(
t
(
error
"Sorry I don't know how to handle '%s'"
(
car
form
))))))))
(
provide
'find-cmd
)
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