--- /dev/null
+This file is cd.def, from which is created cd.c. It implements the
+builtins "cd" and "pwd" in Bash.
+
+Copyright (C) 1987-2003 Free Software Foundation, Inc.
+
+This file is part of GNU Bash, the Bourne Again SHell.
+
+Bash 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.
+
+Bash 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 Bash; see the file COPYING. If not, write to the Free Software
+Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA.
+
+$PRODUCES cd.c
+#include <config.h>
+
+#if defined (HAVE_UNISTD_H)
+# ifdef _MINIX
+# include <sys/types.h>
+# endif
+# include <unistd.h>
+#endif
+
+#include "../bashtypes.h"
+#include "posixdir.h"
+#include "posixstat.h"
+#ifndef _MINIX
+#include <sys/param.h>
+#endif
+
+#include <stdio.h>
+
+#include "../bashansi.h"
+#include "../bashintl.h"
+
+#include <errno.h>
+#include <tilde/tilde.h>
+
+#include "../shell.h"
+#include "../flags.h"
+#include "maxpath.h"
+#include "common.h"
+#include "bashgetopt.h"
+
+#if !defined (errno)
+extern int errno;
+#endif /* !errno */
+
+extern int posixly_correct;
+extern int array_needs_making;
+extern char *bash_getcwd_errstr;
+
+static int bindpwd __P((int));
+static int change_to_directory __P((char *, int));
+
+static char *cdspell __P((char *));
+
+/* Change this to 1 to get cd spelling correction by default. */
+int cdspelling = 0;
+
+int cdable_vars;
+
+$BUILTIN cd
+$FUNCTION cd_builtin
+$SHORT_DOC cd [-L|-P] [dir]
+Change the current directory to DIR. The variable $HOME is the
+default DIR. The variable CDPATH defines the search path for
+the directory containing DIR. Alternative directory names in CDPATH
+are separated by a colon (:). A null directory name is the same as
+the current directory, i.e. `.'. If DIR begins with a slash (/),
+then CDPATH is not used. If the directory is not found, and the
+shell option `cdable_vars' is set, then try the word as a variable
+name. If that variable has a value, then cd to the value of that
+variable. The -P option says to use the physical directory structure
+instead of following symbolic links; the -L option forces symbolic links
+to be followed.
+$END
+
+static int
+bindpwd (no_symlinks)
+ int no_symlinks;
+{
+ char *dirname, *pwdvar;
+ int old_anm;
+ SHELL_VAR *tvar;
+
+#define tcwd the_current_working_directory
+ dirname = tcwd ? (no_symlinks ? sh_physpath (tcwd, 0) : tcwd)
+ : get_working_directory ("cd");
+#undef tcwd
+
+ old_anm = array_needs_making;
+ pwdvar = get_string_value ("PWD");
+
+ tvar = bind_variable ("OLDPWD", pwdvar);
+ if (old_anm == 0 && array_needs_making && exported_p (tvar))
+ {
+ update_export_env_inplace ("OLDPWD=", 7, pwdvar);
+ array_needs_making = 0;
+ }
+
+ tvar = bind_variable ("PWD", dirname);
+ if (old_anm == 0 && array_needs_making && exported_p (tvar))
+ {
+ update_export_env_inplace ("PWD=", 4, dirname);
+ array_needs_making = 0;
+ }
+
+ if (dirname && dirname != the_current_working_directory)
+ free (dirname);
+ return (EXECUTION_SUCCESS);
+}
+
+/* Call get_working_directory to reset the value of
+ the_current_working_directory () */
+static char *
+resetpwd (caller)
+ char *caller;
+{
+ char *tdir;
+
+ FREE (the_current_working_directory);
+ the_current_working_directory = (char *)NULL;
+ tdir = get_working_directory (caller);
+ return (tdir);
+}
+
+#define LCD_DOVARS 0x001
+#define LCD_DOSPELL 0x002
+#define LCD_PRINTPATH 0x004
+#define LCD_FREEDIRNAME 0x010
+
+/* This builtin is ultimately the way that all user-visible commands should
+ change the current working directory. It is called by cd_to_string (),
+ so the programming interface is simple, and it handles errors and
+ restrictions properly. */
+int
+cd_builtin (list)
+ WORD_LIST *list;
+{
+ char *dirname, *cdpath, *path, *temp;
+ int path_index, no_symlinks, opt, lflag;
+
+#if defined (RESTRICTED_SHELL)
+ if (restricted)
+ {
+ sh_restricted ((char *)NULL);
+ return (EXECUTION_FAILURE);
+ }
+#endif /* RESTRICTED_SHELL */
+
+ no_symlinks = no_symbolic_links;
+ reset_internal_getopt ();
+ while ((opt = internal_getopt (list, "LP")) != -1)
+ {
+ switch (opt)
+ {
+ case 'P':
+ no_symlinks = 1;
+ break;
+ case 'L':
+ no_symlinks = 0;
+ break;
+ default:
+ builtin_usage ();
+ return (EXECUTION_FAILURE);
+ }
+ }
+ list = loptend;
+
+ lflag = (cdable_vars ? LCD_DOVARS : 0) |
+ ((interactive && cdspelling) ? LCD_DOSPELL : 0);
+
+ if (list == 0)
+ {
+ /* `cd' without arguments is equivalent to `cd $HOME' */
+ dirname = get_string_value ("HOME");
+
+ if (dirname == 0)
+ {
+ builtin_error (_("HOME not set"));
+ return (EXECUTION_FAILURE);
+ }
+ lflag = 0;
+ }
+ else if (list->word->word[0] == '-' && list->word->word[1] == '\0')
+ {
+ /* This is `cd -', equivalent to `cd $OLDPWD' */
+ dirname = get_string_value ("OLDPWD");
+
+ if (dirname == 0)
+ {
+ builtin_error (_("OLDPWD not set"));
+ return (EXECUTION_FAILURE);
+ }
+#if 0
+ lflag = interactive ? LCD_PRINTPATH : 0;
+#else
+ lflag = LCD_PRINTPATH; /* According to SUSv3 */
+#endif
+ }
+ else if (absolute_pathname (list->word->word))
+ dirname = list->word->word;
+ else if (cdpath = get_string_value ("CDPATH"))
+ {
+ dirname = list->word->word;
+
+ /* Find directory in $CDPATH. */
+ path_index = 0;
+ while (path = extract_colon_unit (cdpath, &path_index))
+ {
+ /* OPT is 1 if the path element is non-empty */
+ opt = path[0] != '\0';
+ temp = sh_makepath (path, dirname, MP_DOTILDE);
+ free (path);
+
+ if (change_to_directory (temp, no_symlinks))
+ {
+ /* POSIX.2 says that if a nonempty directory from CDPATH
+ is used to find the directory to change to, the new
+ directory name is echoed to stdout, whether or not
+ the shell is interactive. */
+ if (opt && (path = no_symlinks ? temp : the_current_working_directory))
+ printf ("%s\n", path);
+
+ free (temp);
+ /* Posix.2 says that after using CDPATH, the resultant
+ value of $PWD will not contain `.' or `..'. */
+ return (bindpwd (posixly_correct || no_symlinks));
+ }
+ else
+ free (temp);
+ }
+
+ /* POSIX.2 says that if `.' does not appear in $CDPATH, we don't
+ try the current directory, so we just punt now with an error
+ message if POSIXLY_CORRECT is non-zero. The check for cdpath[0]
+ is so we don't mistakenly treat a CDPATH value of "" as not
+ specifying the current directory. */
+ if (posixly_correct && cdpath[0])
+ {
+ builtin_error ("%s: %s", dirname, strerror (ENOENT));
+ return (EXECUTION_FAILURE);
+ }
+ }
+ else
+ dirname = list->word->word;
+
+ /* When we get here, DIRNAME is the directory to change to. If we
+ chdir successfully, just return. */
+ if (change_to_directory (dirname, no_symlinks))
+ {
+ if (lflag & LCD_PRINTPATH)
+ printf ("%s\n", dirname);
+ return (bindpwd (no_symlinks));
+ }
+
+ /* If the user requests it, then perhaps this is the name of
+ a shell variable, whose value contains the directory to
+ change to. */
+ if (lflag & LCD_DOVARS)
+ {
+ temp = get_string_value (dirname);
+ if (temp && change_to_directory (temp, no_symlinks))
+ {
+ printf ("%s\n", temp);
+ return (bindpwd (no_symlinks));
+ }
+ }
+
+ /* If the user requests it, try to find a directory name similar in
+ spelling to the one requested, in case the user made a simple
+ typo. This is similar to the UNIX 8th and 9th Edition shells. */
+ if (lflag & LCD_DOSPELL)
+ {
+ temp = cdspell (dirname);
+ if (temp && change_to_directory (temp, no_symlinks))
+ {
+ printf ("%s\n", temp);
+ return (bindpwd (no_symlinks));
+ }
+ else
+ FREE (temp);
+ }
+
+ builtin_error ("%s: %s", dirname, strerror (errno));
+ return (EXECUTION_FAILURE);
+}
+
+$BUILTIN pwd
+$FUNCTION pwd_builtin
+$SHORT_DOC pwd [-PL]
+Print the current working directory. With the -P option, pwd prints
+the physical directory, without any symbolic links; the -L option
+makes pwd follow symbolic links.
+$END
+
+/* Non-zero means that pwd always prints the physical directory, without
+ symbolic links. */
+static int verbatim_pwd;
+
+/* Print the name of the current working directory. */
+int
+pwd_builtin (list)
+ WORD_LIST *list;
+{
+ char *directory;
+ int opt;
+
+ verbatim_pwd = no_symbolic_links;
+ reset_internal_getopt ();
+ while ((opt = internal_getopt (list, "LP")) != -1)
+ {
+ switch (opt)
+ {
+ case 'P':
+ verbatim_pwd = 1;
+ break;
+ case 'L':
+ verbatim_pwd = 0;
+ break;
+ default:
+ builtin_usage ();
+ return (EXECUTION_FAILURE);
+ }
+ }
+ list = loptend;
+
+#define tcwd the_current_working_directory
+
+ directory = tcwd ? (verbatim_pwd ? sh_physpath (tcwd, 0) : tcwd)
+ : get_working_directory ("pwd");
+
+ /* Try again using getcwd() if canonicalization fails (for instance, if
+ the file system has changed state underneath bash). */
+ if (tcwd && directory == 0)
+ directory = resetpwd ("pwd");
+
+#undef tcwd
+
+ if (directory)
+ {
+ printf ("%s\n", directory);
+ if (directory != the_current_working_directory)
+ free (directory);
+ fflush (stdout);
+ if (ferror (stdout))
+ {
+ builtin_error (_("write error: %s"), strerror (errno));
+ clearerr (stdout);
+ return (EXECUTION_FAILURE);
+ }
+
+ return (EXECUTION_SUCCESS);
+ }
+ else
+ return (EXECUTION_FAILURE);
+}
+
+/* Do the work of changing to the directory NEWDIR. Handle symbolic
+ link following, etc. This function *must* return with
+ the_current_working_directory either set to NULL (in which case
+ getcwd() will eventually be called), or set to a string corresponding
+ to the working directory. Return 1 on success, 0 on failure. */
+
+static int
+change_to_directory (newdir, nolinks)
+ char *newdir;
+ int nolinks;
+{
+ char *t, *tdir;
+ int err, canon_failed;
+
+ tdir = (char *)NULL;
+
+ if (the_current_working_directory == 0)
+ {
+ t = get_working_directory ("chdir");
+ FREE (t);
+ }
+
+ t = make_absolute (newdir, the_current_working_directory);
+
+ /* TDIR is either the canonicalized absolute pathname of NEWDIR
+ (nolinks == 0) or the absolute physical pathname of NEWDIR
+ (nolinks != 0). */
+ tdir = nolinks ? sh_physpath (t, 0)
+ : sh_canonpath (t, PATH_CHECKDOTDOT|PATH_CHECKEXISTS);
+
+ /* Use the canonicalized version of NEWDIR, or, if canonicalization
+ failed, use the non-canonical form. */
+ canon_failed = 0;
+ if (tdir && *tdir)
+ free (t);
+ else
+ {
+ FREE (tdir);
+ tdir = t;
+ canon_failed = 1;
+ }
+
+ /* In POSIX mode, if we're resolving symlinks logically and sh_canonpath
+ returns NULL (because it checks the path, it will return NULL if the
+ resolved path doesn't exist), fail immediately. */
+ if (posixly_correct && nolinks == 0 && canon_failed)
+ {
+ if (errno != ENOENT)
+ errno = ENOTDIR;
+ return (0);
+ }
+
+ /* If the chdir succeeds, update the_current_working_directory. */
+ if (chdir (nolinks ? newdir : tdir) == 0)
+ {
+ /* If canonicalization failed, but the chdir succeeded, reset the
+ shell's idea of the_current_working_directory. */
+ if (canon_failed)
+ resetpwd ("cd");
+ else
+ {
+ FREE (the_current_working_directory);
+ the_current_working_directory = tdir;
+ }
+
+ return (1);
+ }
+
+ /* We failed to change to the appropriate directory name. If we tried
+ what the user passed (nolinks != 0), punt now. */
+ if (nolinks)
+ return (0);
+
+ err = errno;
+ free (tdir);
+
+ /* We're not in physical mode (nolinks == 0), but we failed to change to
+ the canonicalized directory name (TDIR). Try what the user passed
+ verbatim. If we succeed, reinitialize the_current_working_directory. */
+ if (chdir (newdir) == 0)
+ {
+ tdir = resetpwd ("cd");
+ FREE (tdir);
+
+ return (1);
+ }
+ else
+ {
+ errno = err;
+ return (0);
+ }
+}
+
+/* Code for cd spelling correction. Original patch submitted by
+ Neil Russel (caret@c-side.com). */
+
+static char *
+cdspell (dirname)
+ char *dirname;
+{
+ int n;
+ char *guess;
+
+ n = (strlen (dirname) * 3 + 1) / 2 + 1;
+ guess = (char *)xmalloc (n);
+
+ switch (spname (dirname, guess))
+ {
+ case -1:
+ default:
+ free (guess);
+ return (char *)NULL;
+ case 0:
+ case 1:
+ return guess;
+ }
+}
--- /dev/null
+This file is cd.def, from which is created cd.c. It implements the
+builtins "cd" and "pwd" in Bash.
+
+Copyright (C) 1987-2003 Free Software Foundation, Inc.
+
+This file is part of GNU Bash, the Bourne Again SHell.
+
+Bash 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.
+
+Bash 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 Bash; see the file COPYING. If not, write to the Free Software
+Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA.
+
+$PRODUCES cd.c
+#include <config.h>
+
+#if defined (HAVE_UNISTD_H)
+# ifdef _MINIX
+# include <sys/types.h>
+# endif
+# include <unistd.h>
+#endif
+
+#include "../bashtypes.h"
+#include "posixdir.h"
+#include "posixstat.h"
+#ifndef _MINIX
+#include <sys/param.h>
+#endif
+
+#include <stdio.h>
+
+#include "../bashansi.h"
+#include "../bashintl.h"
+
+#include <errno.h>
+#include <tilde/tilde.h>
+
+#include "../shell.h"
+#include "../flags.h"
+#include "maxpath.h"
+#include "common.h"
+#include "bashgetopt.h"
+
+#if !defined (errno)
+extern int errno;
+#endif /* !errno */
+
+extern int posixly_correct;
+extern int array_needs_making;
+extern char *bash_getcwd_errstr;
+
+static int bindpwd __P((int));
+static int change_to_directory __P((char *, int));
+
+static char *cdspell __P((char *));
+
+/* Change this to 1 to get cd spelling correction by default. */
+int cdspelling = 0;
+
+int cdable_vars;
+
+$BUILTIN cd
+$FUNCTION cd_builtin
+$SHORT_DOC cd [-L|-P] [dir]
+Change the current directory to DIR. The variable $HOME is the
+default DIR. The variable CDPATH defines the search path for
+the directory containing DIR. Alternative directory names in CDPATH
+are separated by a colon (:). A null directory name is the same as
+the current directory, i.e. `.'. If DIR begins with a slash (/),
+then CDPATH is not used. If the directory is not found, and the
+shell option `cdable_vars' is set, then try the word as a variable
+name. If that variable has a value, then cd to the value of that
+variable. The -P option says to use the physical directory structure
+instead of following symbolic links; the -L option forces symbolic links
+to be followed.
+$END
+
+static int
+bindpwd (no_symlinks)
+ int no_symlinks;
+{
+ char *dirname, *pwdvar;
+ int old_anm;
+ SHELL_VAR *tvar;
+
+#define tcwd the_current_working_directory
+ dirname = tcwd ? (no_symlinks ? sh_physpath (tcwd, 0) : tcwd)
+ : get_working_directory ("cd");
+#undef tcwd
+
+ old_anm = array_needs_making;
+ pwdvar = get_string_value ("PWD");
+
+ tvar = bind_variable ("OLDPWD", pwdvar);
+ if (old_anm == 0 && array_needs_making && exported_p (tvar))
+ {
+ update_export_env_inplace ("OLDPWD=", 7, pwdvar);
+ array_needs_making = 0;
+ }
+
+ tvar = bind_variable ("PWD", dirname);
+ if (old_anm == 0 && array_needs_making && exported_p (tvar))
+ {
+ update_export_env_inplace ("PWD=", 4, dirname);
+ array_needs_making = 0;
+ }
+
+ if (dirname && dirname != the_current_working_directory)
+ free (dirname);
+ return (EXECUTION_SUCCESS);
+}
+
+/* Call get_working_directory to reset the value of
+ the_current_working_directory () */
+static char *
+resetpwd (caller)
+ char *caller;
+{
+ char *tdir;
+
+ FREE (the_current_working_directory);
+ the_current_working_directory = (char *)NULL;
+ tdir = get_working_directory (caller);
+ return (tdir);
+}
+
+#define LCD_DOVARS 0x001
+#define LCD_DOSPELL 0x002
+#define LCD_PRINTPATH 0x004
+#define LCD_FREEDIRNAME 0x010
+
+/* This builtin is ultimately the way that all user-visible commands should
+ change the current working directory. It is called by cd_to_string (),
+ so the programming interface is simple, and it handles errors and
+ restrictions properly. */
+int
+cd_builtin (list)
+ WORD_LIST *list;
+{
+ char *dirname, *cdpath, *path, *temp;
+ int path_index, no_symlinks, opt, lflag;
+
+#if defined (RESTRICTED_SHELL)
+ if (restricted)
+ {
+ sh_restricted ((char *)NULL);
+ return (EXECUTION_FAILURE);
+ }
+#endif /* RESTRICTED_SHELL */
+
+ no_symlinks = no_symbolic_links;
+ reset_internal_getopt ();
+ while ((opt = internal_getopt (list, "LP")) != -1)
+ {
+ switch (opt)
+ {
+ case 'P':
+ no_symlinks = 1;
+ break;
+ case 'L':
+ no_symlinks = 0;
+ break;
+ default:
+ builtin_usage ();
+ return (EXECUTION_FAILURE);
+ }
+ }
+ list = loptend;
+
+ lflag = (cdable_vars ? LCD_DOVARS : 0) |
+ ((interactive && cdspelling) ? LCD_DOSPELL : 0);
+
+ if (list == 0)
+ {
+ /* `cd' without arguments is equivalent to `cd $HOME' */
+ dirname = get_string_value ("HOME");
+
+ if (dirname == 0)
+ {
+ builtin_error (_("HOME not set"));
+ return (EXECUTION_FAILURE);
+ }
+ lflag = 0;
+ }
+ else if (list->word->word[0] == '-' && list->word->word[1] == '\0')
+ {
+ /* This is `cd -', equivalent to `cd $OLDPWD' */
+ dirname = get_string_value ("OLDPWD");
+
+ if (dirname == 0)
+ {
+ builtin_error (_("OLDPWD not set"));
+ return (EXECUTION_FAILURE);
+ }
+#if 0
+ lflag = interactive ? LCD_PRINTPATH : 0;
+#else
+ lflag = LCD_PRINTPATH; /* According to SUSv3 */
+#endif
+ }
+ else if (absolute_pathname (list->word->word))
+ dirname = list->word->word;
+ else if (cdpath = get_string_value ("CDPATH"))
+ {
+ dirname = list->word->word;
+
+ /* Find directory in $CDPATH. */
+ path_index = 0;
+ while (path = extract_colon_unit (cdpath, &path_index))
+ {
+ /* OPT is 1 if the path element is non-empty */
+ opt = path[0] != '\0';
+ temp = sh_makepath (path, dirname, MP_DOTILDE);
+ free (path);
+
+ if (change_to_directory (temp, no_symlinks))
+ {
+ /* POSIX.2 says that if a nonempty directory from CDPATH
+ is used to find the directory to change to, the new
+ directory name is echoed to stdout, whether or not
+ the shell is interactive. */
+ if (opt && (path = no_symlinks ? temp : the_current_working_directory))
+ printf ("%s\n", path);
+
+ free (temp);
+ /* Posix.2 says that after using CDPATH, the resultant
+ value of $PWD will not contain `.' or `..'. */
+ return (bindpwd (posixly_correct || no_symlinks));
+ }
+ else
+ free (temp);
+ }
+
+ /* POSIX.2 says that if `.' does not appear in $CDPATH, we don't
+ try the current directory, so we just punt now with an error
+ message if POSIXLY_CORRECT is non-zero. The check for cdpath[0]
+ is so we don't mistakenly treat a CDPATH value of "" as not
+ specifying the current directory. */
+ if (posixly_correct && cdpath[0])
+ {
+ builtin_error ("%s: %s", dirname, strerror (ENOENT));
+ return (EXECUTION_FAILURE);
+ }
+ }
+ else
+ dirname = list->word->word;
+
+ /* When we get here, DIRNAME is the directory to change to. If we
+ chdir successfully, just return. */
+ if (change_to_directory (dirname, no_symlinks))
+ {
+ if (lflag & LCD_PRINTPATH)
+ printf ("%s\n", dirname);
+ return (bindpwd (no_symlinks));
+ }
+
+ /* If the user requests it, then perhaps this is the name of
+ a shell variable, whose value contains the directory to
+ change to. */
+ if (lflag & LCD_DOVARS)
+ {
+ temp = get_string_value (dirname);
+ if (temp && change_to_directory (temp, no_symlinks))
+ {
+ printf ("%s\n", temp);
+ return (bindpwd (no_symlinks));
+ }
+ }
+
+ /* If the user requests it, try to find a directory name similar in
+ spelling to the one requested, in case the user made a simple
+ typo. This is similar to the UNIX 8th and 9th Edition shells. */
+ if (lflag & LCD_DOSPELL)
+ {
+ temp = cdspell (dirname);
+ if (temp && change_to_directory (temp, no_symlinks))
+ {
+ printf ("%s\n", temp);
+ return (bindpwd (no_symlinks));
+ }
+ else
+ FREE (temp);
+ }
+
+ builtin_error ("%s: %s", dirname, strerror (errno));
+ return (EXECUTION_FAILURE);
+}
+
+$BUILTIN pwd
+$FUNCTION pwd_builtin
+$SHORT_DOC pwd [-PL]
+Print the current working directory. With the -P option, pwd prints
+the physical directory, without any symbolic links; the -L option
+makes pwd follow symbolic links.
+$END
+
+/* Non-zero means that pwd always prints the physical directory, without
+ symbolic links. */
+static int verbatim_pwd;
+
+/* Print the name of the current working directory. */
+int
+pwd_builtin (list)
+ WORD_LIST *list;
+{
+ char *directory;
+ int opt;
+
+ verbatim_pwd = no_symbolic_links;
+ reset_internal_getopt ();
+ while ((opt = internal_getopt (list, "LP")) != -1)
+ {
+ switch (opt)
+ {
+ case 'P':
+ verbatim_pwd = 1;
+ break;
+ case 'L':
+ verbatim_pwd = 0;
+ break;
+ default:
+ builtin_usage ();
+ return (EXECUTION_FAILURE);
+ }
+ }
+ list = loptend;
+
+#define tcwd the_current_working_directory
+
+ directory = tcwd ? (verbatim_pwd ? sh_physpath (tcwd, 0) : tcwd)
+ : get_working_directory ("pwd");
+
+ /* Try again using getcwd() if canonicalization fails (for instance, if
+ the file system has changed state underneath bash). */
+ if (tcwd && directory == 0)
+ directory = resetpwd ("pwd");
+
+#undef tcwd
+
+ if (directory)
+ {
+ printf ("%s\n", directory);
+ if (directory != the_current_working_directory)
+ free (directory);
+ fflush (stdout);
+ if (ferror (stdout))
+ {
+ builtin_error (_("write error: %s"), strerror (errno));
+ clearerr (stdout);
+ return (EXECUTION_FAILURE);
+ }
+
+ return (EXECUTION_SUCCESS);
+ }
+ else
+ return (EXECUTION_FAILURE);
+}
+
+/* Do the work of changing to the directory NEWDIR. Handle symbolic
+ link following, etc. This function *must* return with
+ the_current_working_directory either set to NULL (in which case
+ getcwd() will eventually be called), or set to a string corresponding
+ to the working directory. Return 1 on success, 0 on failure. */
+
+static int
+change_to_directory (newdir, nolinks)
+ char *newdir;
+ int nolinks;
+{
+ char *t, *tdir;
+ int err, canon_failed, r;
+
+ tdir = (char *)NULL;
+
+ if (the_current_working_directory == 0)
+ {
+ t = get_working_directory ("chdir");
+ FREE (t);
+ }
+
+ t = make_absolute (newdir, the_current_working_directory);
+
+ /* TDIR is either the canonicalized absolute pathname of NEWDIR
+ (nolinks == 0) or the absolute physical pathname of NEWDIR
+ (nolinks != 0). */
+ tdir = nolinks ? sh_physpath (t, 0)
+ : sh_canonpath (t, PATH_CHECKDOTDOT|PATH_CHECKEXISTS);
+
+ /* Use the canonicalized version of NEWDIR, or, if canonicalization
+ failed, use the non-canonical form. */
+ canon_failed = 0;
+ if (tdir && *tdir)
+ free (t);
+ else
+ {
+ FREE (tdir);
+ tdir = t;
+ canon_failed = 1;
+ }
+
+ /* In POSIX mode, if we're resolving symlinks logically and sh_canonpath
+ returns NULL (because it checks the path, it will return NULL if the
+ resolved path doesn't exist), fail immediately. */
+ if (posixly_correct && nolinks == 0 && canon_failed)
+ {
+#if defined ENAMETOOLONG
+ if (errno != ENOENT && errno != ENAMETOOLONG)
+#else
+ if (errno != ENOENT)
+#endif
+ errno = ENOTDIR;
+ return (0);
+ }
+
+ /* If the chdir succeeds, update the_current_working_directory. */
+ if (chdir (nolinks ? newdir : tdir) == 0)
+ {
+ /* If canonicalization failed, but the chdir succeeded, reset the
+ shell's idea of the_current_working_directory. */
+ if (canon_failed)
+ {
+ t = resetpwd ("cd");
+ if (t == 0)
+ set_working_directory (tdir);
+ }
+ else
+ {
+ FREE (the_current_working_directory);
+ the_current_working_directory = tdir;
+ }
+
+ return (1);
+ }
+
+ /* We failed to change to the appropriate directory name. If we tried
+ what the user passed (nolinks != 0), punt now. */
+ if (nolinks)
+ return (0);
+
+ err = errno;
+
+ /* We're not in physical mode (nolinks == 0), but we failed to change to
+ the canonicalized directory name (TDIR). Try what the user passed
+ verbatim. If we succeed, reinitialize the_current_working_directory. */
+ if (chdir (newdir) == 0)
+ {
+ t = resetpwd ("cd");
+ if (t == 0)
+ set_working_directory (tdir);
+ else
+ free (t);
+
+ r = 1;
+ }
+ else
+ {
+ errno = err;
+ r = 0;
+ }
+
+ free (tdir);
+ return r;
+}
+
+/* Code for cd spelling correction. Original patch submitted by
+ Neil Russel (caret@c-side.com). */
+
+static char *
+cdspell (dirname)
+ char *dirname;
+{
+ int n;
+ char *guess;
+
+ n = (strlen (dirname) * 3 + 1) / 2 + 1;
+ guess = (char *)xmalloc (n);
+
+ switch (spname (dirname, guess))
+ {
+ case -1:
+ default:
+ free (guess);
+ return (char *)NULL;
+ case 0:
+ case 1:
+ return guess;
+ }
+}
--- /dev/null
+/* vi_mode.c -- A vi emulation mode for Bash.
+ Derived from code written by Jeff Sparkes (jsparkes@bnr.ca). */
+
+/* Copyright (C) 1987, 1989, 1992 Free Software Foundation, Inc.
+
+ This file is part of the GNU Readline Library, a library for
+ reading lines of text with interactive input and history editing.
+
+ The GNU Readline Library 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.
+
+ The GNU Readline Library 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.
+
+ The GNU General Public License is often shipped with GNU software, and
+ is generally kept in a file called COPYING or LICENSE. If you do not
+ have a copy of the license, write to the Free Software Foundation,
+ 59 Temple Place, Suite 330, Boston, MA 02111 USA. */
+#define READLINE_LIBRARY
+
+/* **************************************************************** */
+/* */
+/* VI Emulation Mode */
+/* */
+/* **************************************************************** */
+#include "rlconf.h"
+
+#if defined (VI_MODE)
+
+#if defined (HAVE_CONFIG_H)
+# include <config.h>
+#endif
+
+#include <sys/types.h>
+
+#if defined (HAVE_STDLIB_H)
+# include <stdlib.h>
+#else
+# include "ansi_stdlib.h"
+#endif /* HAVE_STDLIB_H */
+
+#if defined (HAVE_UNISTD_H)
+# include <unistd.h>
+#endif
+
+#include <stdio.h>
+
+/* Some standard library routines. */
+#include "rldefs.h"
+#include "rlmbutil.h"
+
+#include "readline.h"
+#include "history.h"
+
+#include "rlprivate.h"
+#include "xmalloc.h"
+
+#ifndef member
+#define member(c, s) ((c) ? (char *)strchr ((s), (c)) != (char *)NULL : 0)
+#endif
+
+/* Non-zero means enter insertion mode. */
+static int _rl_vi_doing_insert;
+
+/* Command keys which do movement for xxx_to commands. */
+static const char *vi_motion = " hl^$0ftFT;,%wbeWBE|";
+
+/* Keymap used for vi replace characters. Created dynamically since
+ rarely used. */
+static Keymap vi_replace_map;
+
+/* The number of characters inserted in the last replace operation. */
+static int vi_replace_count;
+
+/* If non-zero, we have text inserted after a c[motion] command that put
+ us implicitly into insert mode. Some people want this text to be
+ attached to the command so that it is `redoable' with `.'. */
+static int vi_continued_command;
+static char *vi_insert_buffer;
+static int vi_insert_buffer_size;
+
+static int _rl_vi_last_command = 'i'; /* default `.' puts you in insert mode */
+static int _rl_vi_last_repeat = 1;
+static int _rl_vi_last_arg_sign = 1;
+static int _rl_vi_last_motion;
+#if defined (HANDLE_MULTIBYTE)
+static char _rl_vi_last_search_mbchar[MB_LEN_MAX];
+#else
+static int _rl_vi_last_search_char;
+#endif
+static int _rl_vi_last_replacement;
+
+static int _rl_vi_last_key_before_insert;
+
+static int vi_redoing;
+
+/* Text modification commands. These are the `redoable' commands. */
+static const char *vi_textmod = "_*\\AaIiCcDdPpYyRrSsXx~";
+
+/* Arrays for the saved marks. */
+static int vi_mark_chars['z' - 'a' + 1];
+
+static void _rl_vi_stuff_insert PARAMS((int));
+static void _rl_vi_save_insert PARAMS((UNDO_LIST *));
+static int rl_digit_loop1 PARAMS((void));
+
+void
+_rl_vi_initialize_line ()
+{
+ register int i;
+
+ for (i = 0; i < sizeof (vi_mark_chars) / sizeof (int); i++)
+ vi_mark_chars[i] = -1;
+}
+
+void
+_rl_vi_reset_last ()
+{
+ _rl_vi_last_command = 'i';
+ _rl_vi_last_repeat = 1;
+ _rl_vi_last_arg_sign = 1;
+ _rl_vi_last_motion = 0;
+}
+
+void
+_rl_vi_set_last (key, repeat, sign)
+ int key, repeat, sign;
+{
+ _rl_vi_last_command = key;
+ _rl_vi_last_repeat = repeat;
+ _rl_vi_last_arg_sign = sign;
+}
+
+/* Is the command C a VI mode text modification command? */
+int
+_rl_vi_textmod_command (c)
+ int c;
+{
+ return (member (c, vi_textmod));
+}
+
+static void
+_rl_vi_stuff_insert (count)
+ int count;
+{
+ rl_begin_undo_group ();
+ while (count--)
+ rl_insert_text (vi_insert_buffer);
+ rl_end_undo_group ();
+}
+
+/* Bound to `.'. Called from command mode, so we know that we have to
+ redo a text modification command. The default for _rl_vi_last_command
+ puts you back into insert mode. */
+int
+rl_vi_redo (count, c)
+ int count, c;
+{
+ int r;
+
+ if (!rl_explicit_arg)
+ {
+ rl_numeric_arg = _rl_vi_last_repeat;
+ rl_arg_sign = _rl_vi_last_arg_sign;
+ }
+
+ r = 0;
+ vi_redoing = 1;
+ /* If we're redoing an insert with `i', stuff in the inserted text
+ and do not go into insertion mode. */
+ if (_rl_vi_last_command == 'i' && vi_insert_buffer && *vi_insert_buffer)
+ {
+ _rl_vi_stuff_insert (count);
+ /* And back up point over the last character inserted. */
+ if (rl_point > 0)
+ rl_point--;
+ }
+ else
+ r = _rl_dispatch (_rl_vi_last_command, _rl_keymap);
+ vi_redoing = 0;
+
+ return (r);
+}
+
+/* A placeholder for further expansion. */
+int
+rl_vi_undo (count, key)
+ int count, key;
+{
+ return (rl_undo_command (count, key));
+}
+
+/* Yank the nth arg from the previous line into this line at point. */
+int
+rl_vi_yank_arg (count, key)
+ int count, key;
+{
+ /* Readline thinks that the first word on a line is the 0th, while vi
+ thinks the first word on a line is the 1st. Compensate. */
+ if (rl_explicit_arg)
+ rl_yank_nth_arg (count - 1, 0);
+ else
+ rl_yank_nth_arg ('$', 0);
+
+ return (0);
+}
+
+/* With an argument, move back that many history lines, else move to the
+ beginning of history. */
+int
+rl_vi_fetch_history (count, c)
+ int count, c;
+{
+ int wanted;
+
+ /* Giving an argument of n means we want the nth command in the history
+ file. The command number is interpreted the same way that the bash
+ `history' command does it -- that is, giving an argument count of 450
+ to this command would get the command listed as number 450 in the
+ output of `history'. */
+ if (rl_explicit_arg)
+ {
+ wanted = history_base + where_history () - count;
+ if (wanted <= 0)
+ rl_beginning_of_history (0, 0);
+ else
+ rl_get_previous_history (wanted, c);
+ }
+ else
+ rl_beginning_of_history (count, 0);
+ return (0);
+}
+
+/* Search again for the last thing searched for. */
+int
+rl_vi_search_again (count, key)
+ int count, key;
+{
+ switch (key)
+ {
+ case 'n':
+ rl_noninc_reverse_search_again (count, key);
+ break;
+
+ case 'N':
+ rl_noninc_forward_search_again (count, key);
+ break;
+ }
+ return (0);
+}
+
+/* Do a vi style search. */
+int
+rl_vi_search (count, key)
+ int count, key;
+{
+ switch (key)
+ {
+ case '?':
+ rl_noninc_forward_search (count, key);
+ break;
+
+ case '/':
+ rl_noninc_reverse_search (count, key);
+ break;
+
+ default:
+ rl_ding ();
+ break;
+ }
+ return (0);
+}
+
+/* Completion, from vi's point of view. */
+int
+rl_vi_complete (ignore, key)
+ int ignore, key;
+{
+ if ((rl_point < rl_end) && (!whitespace (rl_line_buffer[rl_point])))
+ {
+ if (!whitespace (rl_line_buffer[rl_point + 1]))
+ rl_vi_end_word (1, 'E');
+ rl_point++;
+ }
+
+ if (key == '*')
+ rl_complete_internal ('*'); /* Expansion and replacement. */
+ else if (key == '=')
+ rl_complete_internal ('?'); /* List possible completions. */
+ else if (key == '\\')
+ rl_complete_internal (TAB); /* Standard Readline completion. */
+ else
+ rl_complete (0, key);
+
+ if (key == '*' || key == '\\')
+ {
+ _rl_vi_set_last (key, 1, rl_arg_sign);
+ rl_vi_insertion_mode (1, key);
+ }
+ return (0);
+}
+
+/* Tilde expansion for vi mode. */
+int
+rl_vi_tilde_expand (ignore, key)
+ int ignore, key;
+{
+ rl_tilde_expand (0, key);
+ _rl_vi_set_last (key, 1, rl_arg_sign); /* XXX */
+ rl_vi_insertion_mode (1, key);
+ return (0);
+}
+
+/* Previous word in vi mode. */
+int
+rl_vi_prev_word (count, key)
+ int count, key;
+{
+ if (count < 0)
+ return (rl_vi_next_word (-count, key));
+
+ if (rl_point == 0)
+ {
+ rl_ding ();
+ return (0);
+ }
+
+ if (_rl_uppercase_p (key))
+ rl_vi_bWord (count, key);
+ else
+ rl_vi_bword (count, key);
+
+ return (0);
+}
+
+/* Next word in vi mode. */
+int
+rl_vi_next_word (count, key)
+ int count, key;
+{
+ if (count < 0)
+ return (rl_vi_prev_word (-count, key));
+
+ if (rl_point >= (rl_end - 1))
+ {
+ rl_ding ();
+ return (0);
+ }
+
+ if (_rl_uppercase_p (key))
+ rl_vi_fWord (count, key);
+ else
+ rl_vi_fword (count, key);
+ return (0);
+}
+
+/* Move to the end of the ?next? word. */
+int
+rl_vi_end_word (count, key)
+ int count, key;
+{
+ if (count < 0)
+ {
+ rl_ding ();
+ return -1;
+ }
+
+ if (_rl_uppercase_p (key))
+ rl_vi_eWord (count, key);
+ else
+ rl_vi_eword (count, key);
+ return (0);
+}
+
+/* Move forward a word the way that 'W' does. */
+int
+rl_vi_fWord (count, ignore)
+ int count, ignore;
+{
+ while (count-- && rl_point < (rl_end - 1))
+ {
+ /* Skip until whitespace. */
+ while (!whitespace (rl_line_buffer[rl_point]) && rl_point < rl_end)
+ rl_point++;
+
+ /* Now skip whitespace. */
+ while (whitespace (rl_line_buffer[rl_point]) && rl_point < rl_end)
+ rl_point++;
+ }
+ return (0);
+}
+
+int
+rl_vi_bWord (count, ignore)
+ int count, ignore;
+{
+ while (count-- && rl_point > 0)
+ {
+ /* If we are at the start of a word, move back to whitespace so
+ we will go back to the start of the previous word. */
+ if (!whitespace (rl_line_buffer[rl_point]) &&
+ whitespace (rl_line_buffer[rl_point - 1]))
+ rl_point--;
+
+ while (rl_point > 0 && whitespace (rl_line_buffer[rl_point]))
+ rl_point--;
+
+ if (rl_point > 0)
+ {
+ while (--rl_point >= 0 && !whitespace (rl_line_buffer[rl_point]));
+ rl_point++;
+ }
+ }
+ return (0);
+}
+
+int
+rl_vi_eWord (count, ignore)
+ int count, ignore;
+{
+ while (count-- && rl_point < (rl_end - 1))
+ {
+ if (!whitespace (rl_line_buffer[rl_point]))
+ rl_point++;
+
+ /* Move to the next non-whitespace character (to the start of the
+ next word). */
+ while (rl_point < rl_end && whitespace (rl_line_buffer[rl_point]))
+ rl_point++;
+
+ if (rl_point && rl_point < rl_end)
+ {
+ /* Skip whitespace. */
+ while (rl_point < rl_end && whitespace (rl_line_buffer[rl_point]))
+ rl_point++;
+
+ /* Skip until whitespace. */
+ while (rl_point < rl_end && !whitespace (rl_line_buffer[rl_point]))
+ rl_point++;
+
+ /* Move back to the last character of the word. */
+ rl_point--;
+ }
+ }
+ return (0);
+}
+
+int
+rl_vi_fword (count, ignore)
+ int count, ignore;
+{
+ while (count-- && rl_point < (rl_end - 1))
+ {
+ /* Move to white space (really non-identifer). */
+ if (_rl_isident (rl_line_buffer[rl_point]))
+ {
+ while (_rl_isident (rl_line_buffer[rl_point]) && rl_point < rl_end)
+ rl_point++;
+ }
+ else /* if (!whitespace (rl_line_buffer[rl_point])) */
+ {
+ while (!_rl_isident (rl_line_buffer[rl_point]) &&
+ !whitespace (rl_line_buffer[rl_point]) && rl_point < rl_end)
+ rl_point++;
+ }
+
+ /* Move past whitespace. */
+ while (whitespace (rl_line_buffer[rl_point]) && rl_point < rl_end)
+ rl_point++;
+ }
+ return (0);
+}
+
+int
+rl_vi_bword (count, ignore)
+ int count, ignore;
+{
+ while (count-- && rl_point > 0)
+ {
+ int last_is_ident;
+
+ /* If we are at the start of a word, move back to whitespace
+ so we will go back to the start of the previous word. */
+ if (!whitespace (rl_line_buffer[rl_point]) &&
+ whitespace (rl_line_buffer[rl_point - 1]))
+ rl_point--;
+
+ /* If this character and the previous character are `opposite', move
+ back so we don't get messed up by the rl_point++ down there in
+ the while loop. Without this code, words like `l;' screw up the
+ function. */
+ last_is_ident = _rl_isident (rl_line_buffer[rl_point - 1]);
+ if ((_rl_isident (rl_line_buffer[rl_point]) && !last_is_ident) ||
+ (!_rl_isident (rl_line_buffer[rl_point]) && last_is_ident))
+ rl_point--;
+
+ while (rl_point > 0 && whitespace (rl_line_buffer[rl_point]))
+ rl_point--;
+
+ if (rl_point > 0)
+ {
+ if (_rl_isident (rl_line_buffer[rl_point]))
+ while (--rl_point >= 0 && _rl_isident (rl_line_buffer[rl_point]));
+ else
+ while (--rl_point >= 0 && !_rl_isident (rl_line_buffer[rl_point]) &&
+ !whitespace (rl_line_buffer[rl_point]));
+ rl_point++;
+ }
+ }
+ return (0);
+}
+
+int
+rl_vi_eword (count, ignore)
+ int count, ignore;
+{
+ while (count-- && rl_point < rl_end - 1)
+ {
+ if (!whitespace (rl_line_buffer[rl_point]))
+ rl_point++;
+
+ while (rl_point < rl_end && whitespace (rl_line_buffer[rl_point]))
+ rl_point++;
+
+ if (rl_point < rl_end)
+ {
+ if (_rl_isident (rl_line_buffer[rl_point]))
+ while (++rl_point < rl_end && _rl_isident (rl_line_buffer[rl_point]));
+ else
+ while (++rl_point < rl_end && !_rl_isident (rl_line_buffer[rl_point])
+ && !whitespace (rl_line_buffer[rl_point]));
+ }
+ rl_point--;
+ }
+ return (0);
+}
+
+int
+rl_vi_insert_beg (count, key)
+ int count, key;
+{
+ rl_beg_of_line (1, key);
+ rl_vi_insertion_mode (1, key);
+ return (0);
+}
+
+int
+rl_vi_append_mode (count, key)
+ int count, key;
+{
+ if (rl_point < rl_end)
+ {
+ if (MB_CUR_MAX == 1 || rl_byte_oriented)
+ rl_point++;
+ else
+ {
+ int point = rl_point;
+ rl_forward_char (1, key);
+ if (point == rl_point)
+ rl_point = rl_end;
+ }
+ }
+ rl_vi_insertion_mode (1, key);
+ return (0);
+}
+
+int
+rl_vi_append_eol (count, key)
+ int count, key;
+{
+ rl_end_of_line (1, key);
+ rl_vi_append_mode (1, key);
+ return (0);
+}
+
+/* What to do in the case of C-d. */
+int
+rl_vi_eof_maybe (count, c)
+ int count, c;
+{
+ return (rl_newline (1, '\n'));
+}
+
+/* Insertion mode stuff. */
+
+/* Switching from one mode to the other really just involves
+ switching keymaps. */
+int
+rl_vi_insertion_mode (count, key)
+ int count, key;
+{
+ _rl_keymap = vi_insertion_keymap;
+ _rl_vi_last_key_before_insert = key;
+ return (0);
+}
+
+static void
+_rl_vi_save_insert (up)
+ UNDO_LIST *up;
+{
+ int len, start, end;
+
+ if (up == 0)
+ {
+ if (vi_insert_buffer_size >= 1)
+ vi_insert_buffer[0] = '\0';
+ return;
+ }
+
+ start = up->start;
+ end = up->end;
+ len = end - start + 1;
+ if (len >= vi_insert_buffer_size)
+ {
+ vi_insert_buffer_size += (len + 32) - (len % 32);
+ vi_insert_buffer = (char *)xrealloc (vi_insert_buffer, vi_insert_buffer_size);
+ }
+ strncpy (vi_insert_buffer, rl_line_buffer + start, len - 1);
+ vi_insert_buffer[len-1] = '\0';
+}
+
+void
+_rl_vi_done_inserting ()
+{
+ if (_rl_vi_doing_insert)
+ {
+ /* The `C', `s', and `S' commands set this. */
+ rl_end_undo_group ();
+ /* Now, the text between rl_undo_list->next->start and
+ rl_undo_list->next->end is what was inserted while in insert
+ mode. It gets copied to VI_INSERT_BUFFER because it depends
+ on absolute indices into the line which may change (though they
+ probably will not). */
+ _rl_vi_doing_insert = 0;
+ _rl_vi_save_insert (rl_undo_list->next);
+ vi_continued_command = 1;
+ }
+ else
+ {
+ if ((_rl_vi_last_key_before_insert == 'i' || _rl_vi_last_key_before_insert == 'a') && rl_undo_list)
+ _rl_vi_save_insert (rl_undo_list);
+ /* XXX - Other keys probably need to be checked. */
+ else if (_rl_vi_last_key_before_insert == 'C')
+ rl_end_undo_group ();
+ while (_rl_undo_group_level > 0)
+ rl_end_undo_group ();
+ vi_continued_command = 0;
+ }
+}
+
+int
+rl_vi_movement_mode (count, key)
+ int count, key;
+{
+ if (rl_point > 0)
+ rl_backward_char (1, key);
+
+ _rl_keymap = vi_movement_keymap;
+ _rl_vi_done_inserting ();
+ return (0);
+}
+
+int
+rl_vi_arg_digit (count, c)
+ int count, c;
+{
+ if (c == '0' && rl_numeric_arg == 1 && !rl_explicit_arg)
+ return (rl_beg_of_line (1, c));
+ else
+ return (rl_digit_argument (count, c));
+}
+
+/* Change the case of the next COUNT characters. */
+#if defined (HANDLE_MULTIBYTE)
+static int
+_rl_vi_change_mbchar_case (count)
+ int count;
+{
+ wchar_t wc;
+ char mb[MB_LEN_MAX+1];
+ int mblen;
+ mbstate_t ps;
+
+ memset (&ps, 0, sizeof (mbstate_t));
+ if (_rl_adjust_point (rl_line_buffer, rl_point, &ps) > 0)
+ count--;
+ while (count-- && rl_point < rl_end)
+ {
+ mbrtowc (&wc, rl_line_buffer + rl_point, rl_end - rl_point, &ps);
+ if (iswupper (wc))
+ wc = towlower (wc);
+ else if (iswlower (wc))
+ wc = towupper (wc);
+ else
+ {
+ /* Just skip over chars neither upper nor lower case */
+ rl_forward_char (1, 0);
+ continue;
+ }
+
+ /* Vi is kind of strange here. */
+ if (wc)
+ {
+ mblen = wcrtomb (mb, wc, &ps);
+ if (mblen >= 0)
+ mb[mblen] = '\0';
+ rl_begin_undo_group ();
+ rl_delete (1, 0);
+ rl_insert_text (mb);
+ rl_end_undo_group ();
+ rl_vi_check ();
+ }
+ else
+ rl_forward_char (1, 0);
+ }
+
+ return 0;
+}
+#endif
+
+int
+rl_vi_change_case (count, ignore)
+ int count, ignore;
+{
+ char c = 0;
+
+ /* Don't try this on an empty line. */
+ if (rl_point >= rl_end)
+ return (0);
+
+#if defined (HANDLE_MULTIBYTE)
+ if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
+ return (_rl_vi_change_mbchar_case (count));
+#endif
+
+ while (count-- && rl_point < rl_end)
+ {
+ if (_rl_uppercase_p (rl_line_buffer[rl_point]))
+ c = _rl_to_lower (rl_line_buffer[rl_point]);
+ else if (_rl_lowercase_p (rl_line_buffer[rl_point]))
+ c = _rl_to_upper (rl_line_buffer[rl_point]);
+ else
+ {
+ /* Just skip over characters neither upper nor lower case. */
+ rl_forward_char (1, c);
+ continue;
+ }
+
+ /* Vi is kind of strange here. */
+ if (c)
+ {
+ rl_begin_undo_group ();
+ rl_delete (1, c);
+ _rl_insert_char (1, c);
+ rl_end_undo_group ();
+ rl_vi_check ();
+ }
+ else
+ rl_forward_char (1, c);
+ }
+ return (0);
+}
+
+int
+rl_vi_put (count, key)
+ int count, key;
+{
+ if (!_rl_uppercase_p (key) && (rl_point + 1 <= rl_end))
+ rl_point = _rl_find_next_mbchar (rl_line_buffer, rl_point, 1, MB_FIND_NONZERO);
+
+ rl_yank (1, key);
+ rl_backward_char (1, key);
+ return (0);
+}
+
+int
+rl_vi_check ()
+{
+ if (rl_point && rl_point == rl_end)
+ {
+ if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
+ rl_point = _rl_find_prev_mbchar (rl_line_buffer, rl_point, MB_FIND_NONZERO);
+ else
+ rl_point--;
+ }
+ return (0);
+}
+
+int
+rl_vi_column (count, key)
+ int count, key;
+{
+ if (count > rl_end)
+ rl_end_of_line (1, key);
+ else
+ rl_point = count - 1;
+ return (0);
+}
+
+int
+rl_vi_domove (key, nextkey)
+ int key, *nextkey;
+{
+ int c, save;
+ int old_end;
+
+ rl_mark = rl_point;
+ RL_SETSTATE(RL_STATE_MOREINPUT);
+ c = rl_read_key ();
+ RL_UNSETSTATE(RL_STATE_MOREINPUT);
+ *nextkey = c;
+
+ if (!member (c, vi_motion))
+ {
+ if (_rl_digit_p (c))
+ {
+ save = rl_numeric_arg;
+ rl_numeric_arg = _rl_digit_value (c);
+ rl_digit_loop1 ();
+ rl_numeric_arg *= save;
+ RL_SETSTATE(RL_STATE_MOREINPUT);
+ c = rl_read_key (); /* real command */
+ RL_UNSETSTATE(RL_STATE_MOREINPUT);
+ *nextkey = c;
+ }
+ else if (key == c && (key == 'd' || key == 'y' || key == 'c'))
+ {
+ rl_mark = rl_end;
+ rl_beg_of_line (1, c);
+ _rl_vi_last_motion = c;
+ return (0);
+ }
+ else
+ return (-1);
+ }
+
+ _rl_vi_last_motion = c;
+
+ /* Append a blank character temporarily so that the motion routines
+ work right at the end of the line. */
+ old_end = rl_end;
+ rl_line_buffer[rl_end++] = ' ';
+ rl_line_buffer[rl_end] = '\0';
+
+ _rl_dispatch (c, _rl_keymap);
+
+ /* Remove the blank that we added. */
+ rl_end = old_end;
+ rl_line_buffer[rl_end] = '\0';
+ if (rl_point > rl_end)
+ rl_point = rl_end;
+
+ /* No change in position means the command failed. */
+ if (rl_mark == rl_point)
+ return (-1);
+
+ /* rl_vi_f[wW]ord () leaves the cursor on the first character of the next
+ word. If we are not at the end of the line, and we are on a
+ non-whitespace character, move back one (presumably to whitespace). */
+ if ((_rl_to_upper (c) == 'W') && rl_point < rl_end && rl_point > rl_mark &&
+ !whitespace (rl_line_buffer[rl_point]))
+ rl_point--;
+
+ /* If cw or cW, back up to the end of a word, so the behaviour of ce
+ or cE is the actual result. Brute-force, no subtlety. */
+ if (key == 'c' && rl_point >= rl_mark && (_rl_to_upper (c) == 'W'))
+ {
+ /* Don't move farther back than where we started. */
+ while (rl_point > rl_mark && whitespace (rl_line_buffer[rl_point]))
+ rl_point--;
+
+ /* Posix.2 says that if cw or cW moves the cursor towards the end of
+ the line, the character under the cursor should be deleted. */
+ if (rl_point == rl_mark)
+ rl_point++;
+ else
+ {
+ /* Move past the end of the word so that the kill doesn't
+ remove the last letter of the previous word. Only do this
+ if we are not at the end of the line. */
+ if (rl_point >= 0 && rl_point < (rl_end - 1) && !whitespace (rl_line_buffer[rl_point]))
+ rl_point++;
+ }
+ }
+
+ if (rl_mark < rl_point)
+ SWAP (rl_point, rl_mark);
+
+ return (0);
+}
+
+/* A simplified loop for vi. Don't dispatch key at end.
+ Don't recognize minus sign?
+ Should this do rl_save_prompt/rl_restore_prompt? */
+static int
+rl_digit_loop1 ()
+{
+ int key, c;
+
+ RL_SETSTATE(RL_STATE_NUMERICARG);
+ while (1)
+ {
+ if (rl_numeric_arg > 1000000)
+ {
+ rl_explicit_arg = rl_numeric_arg = 0;
+ rl_ding ();
+ rl_clear_message ();
+ RL_UNSETSTATE(RL_STATE_NUMERICARG);
+ return 1;
+ }
+ rl_message ("(arg: %d) ", rl_arg_sign * rl_numeric_arg);
+ RL_SETSTATE(RL_STATE_MOREINPUT);
+ key = c = rl_read_key ();
+ RL_UNSETSTATE(RL_STATE_MOREINPUT);
+
+ if (c >= 0 && _rl_keymap[c].type == ISFUNC &&
+ _rl_keymap[c].function == rl_universal_argument)
+ {
+ rl_numeric_arg *= 4;
+ continue;
+ }
+
+ c = UNMETA (c);
+ if (_rl_digit_p (c))
+ {
+ if (rl_explicit_arg)
+ rl_numeric_arg = (rl_numeric_arg * 10) + _rl_digit_value (c);
+ else
+ rl_numeric_arg = _rl_digit_value (c);
+ rl_explicit_arg = 1;
+ }
+ else
+ {
+ rl_clear_message ();
+ rl_stuff_char (key);
+ break;
+ }
+ }
+
+ RL_UNSETSTATE(RL_STATE_NUMERICARG);
+ return (0);
+}
+
+int
+rl_vi_delete_to (count, key)
+ int count, key;
+{
+ int c;
+
+ if (_rl_uppercase_p (key))
+ rl_stuff_char ('$');
+ else if (vi_redoing)
+ rl_stuff_char (_rl_vi_last_motion);
+
+ if (rl_vi_domove (key, &c))
+ {
+ rl_ding ();
+ return -1;
+ }
+
+ /* These are the motion commands that do not require adjusting the
+ mark. */
+ if ((strchr (" l|h^0bB", c) == 0) && (rl_mark < rl_end))
+ rl_mark++;
+
+ rl_kill_text (rl_point, rl_mark);
+ return (0);
+}
+
+int
+rl_vi_change_to (count, key)
+ int count, key;
+{
+ int c, start_pos;
+
+ if (_rl_uppercase_p (key))
+ rl_stuff_char ('$');
+ else if (vi_redoing)
+ rl_stuff_char (_rl_vi_last_motion);
+
+ start_pos = rl_point;
+
+ if (rl_vi_domove (key, &c))
+ {
+ rl_ding ();
+ return -1;
+ }
+
+ /* These are the motion commands that do not require adjusting the
+ mark. c[wW] are handled by special-case code in rl_vi_domove(),
+ and already leave the mark at the correct location. */
+ if ((strchr (" l|hwW^0bB", c) == 0) && (rl_mark < rl_end))
+ rl_mark++;
+
+ /* The cursor never moves with c[wW]. */
+ if ((_rl_to_upper (c) == 'W') && rl_point < start_pos)
+ rl_point = start_pos;
+
+ if (vi_redoing)
+ {
+ if (vi_insert_buffer && *vi_insert_buffer)
+ rl_begin_undo_group ();
+ rl_delete_text (rl_point, rl_mark);
+ if (vi_insert_buffer && *vi_insert_buffer)
+ {
+ rl_insert_text (vi_insert_buffer);
+ rl_end_undo_group ();
+ }
+ }
+ else
+ {
+ rl_begin_undo_group (); /* to make the `u' command work */
+ rl_kill_text (rl_point, rl_mark);
+ /* `C' does not save the text inserted for undoing or redoing. */
+ if (_rl_uppercase_p (key) == 0)
+ _rl_vi_doing_insert = 1;
+ _rl_vi_set_last (key, count, rl_arg_sign);
+ rl_vi_insertion_mode (1, key);
+ }
+
+ return (0);
+}
+
+int
+rl_vi_yank_to (count, key)
+ int count, key;
+{
+ int c, save = rl_point;
+
+ if (_rl_uppercase_p (key))
+ rl_stuff_char ('$');
+
+ if (rl_vi_domove (key, &c))
+ {
+ rl_ding ();
+ return -1;
+ }
+
+ /* These are the motion commands that do not require adjusting the
+ mark. */
+ if ((strchr (" l|h^0%bB", c) == 0) && (rl_mark < rl_end))
+ rl_mark++;
+
+ rl_begin_undo_group ();
+ rl_kill_text (rl_point, rl_mark);
+ rl_end_undo_group ();
+ rl_do_undo ();
+ rl_point = save;
+
+ return (0);
+}
+
+int
+rl_vi_delete (count, key)
+ int count, key;
+{
+ int end;
+
+ if (rl_end == 0)
+ {
+ rl_ding ();
+ return -1;
+ }
+
+ if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
+ end = _rl_find_next_mbchar (rl_line_buffer, rl_point, count, MB_FIND_NONZERO);
+ else
+ end = rl_point + count;
+
+ if (end >= rl_end)
+ end = rl_end;
+
+ rl_kill_text (rl_point, end);
+
+ if (rl_point > 0 && rl_point == rl_end)
+ rl_backward_char (1, key);
+ return (0);
+}
+
+int
+rl_vi_back_to_indent (count, key)
+ int count, key;
+{
+ rl_beg_of_line (1, key);
+ while (rl_point < rl_end && whitespace (rl_line_buffer[rl_point]))
+ rl_point++;
+ return (0);
+}
+
+int
+rl_vi_first_print (count, key)
+ int count, key;
+{
+ return (rl_vi_back_to_indent (1, key));
+}
+
+int
+rl_vi_char_search (count, key)
+ int count, key;
+{
+#if defined (HANDLE_MULTIBYTE)
+ static char *target;
+ static int mb_len;
+#else
+ static char target;
+#endif
+ static int orig_dir, dir;
+
+ if (key == ';' || key == ',')
+ dir = key == ';' ? orig_dir : -orig_dir;
+ else
+ {
+ if (vi_redoing)
+#if defined (HANDLE_MULTIBYTE)
+ target = _rl_vi_last_search_mbchar;
+#else
+ target = _rl_vi_last_search_char;
+#endif
+ else
+ {
+#if defined (HANDLE_MULTIBYTE)
+ mb_len = _rl_read_mbchar (_rl_vi_last_search_mbchar, MB_LEN_MAX);
+ target = _rl_vi_last_search_mbchar;
+#else
+ RL_SETSTATE(RL_STATE_MOREINPUT);
+ _rl_vi_last_search_char = target = rl_read_key ();
+ RL_UNSETSTATE(RL_STATE_MOREINPUT);
+#endif
+ }
+
+ switch (key)
+ {
+ case 't':
+ orig_dir = dir = FTO;
+ break;
+
+ case 'T':
+ orig_dir = dir = BTO;
+ break;
+
+ case 'f':
+ orig_dir = dir = FFIND;
+ break;
+
+ case 'F':
+ orig_dir = dir = BFIND;
+ break;
+ }
+ }
+
+#if defined (HANDLE_MULTIBYTE)
+ return (_rl_char_search_internal (count, dir, target, mb_len));
+#else
+ return (_rl_char_search_internal (count, dir, target));
+#endif
+}
+
+/* Match brackets */
+int
+rl_vi_match (ignore, key)
+ int ignore, key;
+{
+ int count = 1, brack, pos, tmp, pre;
+
+ pos = rl_point;
+ if ((brack = rl_vi_bracktype (rl_line_buffer[rl_point])) == 0)
+ {
+ if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
+ {
+ while ((brack = rl_vi_bracktype (rl_line_buffer[rl_point])) == 0)
+ {
+ pre = rl_point;
+ rl_forward_char (1, key);
+ if (pre == rl_point)
+ break;
+ }
+ }
+ else
+ while ((brack = rl_vi_bracktype (rl_line_buffer[rl_point])) == 0 &&
+ rl_point < rl_end - 1)
+ rl_forward_char (1, key);
+
+ if (brack <= 0)
+ {
+ rl_point = pos;
+ rl_ding ();
+ return -1;
+ }
+ }
+
+ pos = rl_point;
+
+ if (brack < 0)
+ {
+ while (count)
+ {
+ tmp = pos;
+ if (MB_CUR_MAX == 1 || rl_byte_oriented)
+ pos--;
+ else
+ {
+ pos = _rl_find_prev_mbchar (rl_line_buffer, pos, MB_FIND_ANY);
+ if (tmp == pos)
+ pos--;
+ }
+ if (pos >= 0)
+ {
+ int b = rl_vi_bracktype (rl_line_buffer[pos]);
+ if (b == -brack)
+ count--;
+ else if (b == brack)
+ count++;
+ }
+ else
+ {
+ rl_ding ();
+ return -1;
+ }
+ }
+ }
+ else
+ { /* brack > 0 */
+ while (count)
+ {
+ if (MB_CUR_MAX == 1 || rl_byte_oriented)
+ pos++;
+ else
+ pos = _rl_find_next_mbchar (rl_line_buffer, pos, 1, MB_FIND_ANY);
+
+ if (pos < rl_end)
+ {
+ int b = rl_vi_bracktype (rl_line_buffer[pos]);
+ if (b == -brack)
+ count--;
+ else if (b == brack)
+ count++;
+ }
+ else
+ {
+ rl_ding ();
+ return -1;
+ }
+ }
+ }
+ rl_point = pos;
+ return (0);
+}
+
+int
+rl_vi_bracktype (c)
+ int c;
+{
+ switch (c)
+ {
+ case '(': return 1;
+ case ')': return -1;
+ case '[': return 2;
+ case ']': return -2;
+ case '{': return 3;
+ case '}': return -3;
+ default: return 0;
+ }
+}
+
+/* XXX - think about reading an entire mbchar with _rl_read_mbchar and
+ inserting it in one bunch instead of the loop below (like in
+ rl_vi_char_search or _rl_vi_change_mbchar_case. Set c to mbchar[0]
+ for test against 033 or ^C. Make sure that _rl_read_mbchar does
+ this right. */
+int
+rl_vi_change_char (count, key)
+ int count, key;
+{
+ int c;
+
+ if (vi_redoing)
+ c = _rl_vi_last_replacement;
+ else
+ {
+ RL_SETSTATE(RL_STATE_MOREINPUT);
+ _rl_vi_last_replacement = c = rl_read_key ();
+ RL_UNSETSTATE(RL_STATE_MOREINPUT);
+ }
+
+ if (c == '\033' || c == CTRL ('C'))
+ return -1;
+
+ while (count-- && rl_point < rl_end)
+ {
+ rl_begin_undo_group ();
+
+ rl_delete (1, c);
+#if defined (HANDLE_MULTIBYTE)
+ if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
+ while (_rl_insert_char (1, c))
+ {
+ RL_SETSTATE (RL_STATE_MOREINPUT);
+ c = rl_read_key ();
+ RL_UNSETSTATE (RL_STATE_MOREINPUT);
+ }
+ else
+#endif
+ _rl_insert_char (1, c);
+ if (count == 0)
+ rl_backward_char (1, c);
+
+ rl_end_undo_group ();
+ }
+ return (0);
+}
+
+int
+rl_vi_subst (count, key)
+ int count, key;
+{
+ /* If we are redoing, rl_vi_change_to will stuff the last motion char */
+ if (vi_redoing == 0)
+ rl_stuff_char ((key == 'S') ? 'c' : 'l'); /* `S' == `cc', `s' == `cl' */
+
+ return (rl_vi_change_to (count, 'c'));
+}
+
+int
+rl_vi_overstrike (count, key)
+ int count, key;
+{
+ if (_rl_vi_doing_insert == 0)
+ {
+ _rl_vi_doing_insert = 1;
+ rl_begin_undo_group ();
+ }
+
+ if (count > 0)
+ {
+ _rl_overwrite_char (count, key);
+ vi_replace_count += count;
+ }
+
+ return (0);
+}
+
+int
+rl_vi_overstrike_delete (count, key)
+ int count, key;
+{
+ int i, s;
+
+ for (i = 0; i < count; i++)
+ {
+ if (vi_replace_count == 0)
+ {
+ rl_ding ();
+ break;
+ }
+ s = rl_point;
+
+ if (rl_do_undo ())
+ vi_replace_count--;
+
+ if (rl_point == s)
+ rl_backward_char (1, key);
+ }
+
+ if (vi_replace_count == 0 && _rl_vi_doing_insert)
+ {
+ rl_end_undo_group ();
+ rl_do_undo ();
+ _rl_vi_doing_insert = 0;
+ }
+ return (0);
+}
+
+int
+rl_vi_replace (count, key)
+ int count, key;
+{
+ int i;
+
+ vi_replace_count = 0;
+
+ if (!vi_replace_map)
+ {
+ vi_replace_map = rl_make_bare_keymap ();
+
+ for (i = ' '; i < KEYMAP_SIZE; i++)
+ vi_replace_map[i].function = rl_vi_overstrike;
+
+ vi_replace_map[RUBOUT].function = rl_vi_overstrike_delete;
+ vi_replace_map[ESC].function = rl_vi_movement_mode;
+ vi_replace_map[RETURN].function = rl_newline;
+ vi_replace_map[NEWLINE].function = rl_newline;
+
+ /* If the normal vi insertion keymap has ^H bound to erase, do the
+ same here. Probably should remove the assignment to RUBOUT up
+ there, but I don't think it will make a difference in real life. */
+ if (vi_insertion_keymap[CTRL ('H')].type == ISFUNC &&
+ vi_insertion_keymap[CTRL ('H')].function == rl_rubout)
+ vi_replace_map[CTRL ('H')].function = rl_vi_overstrike_delete;
+
+ }
+ _rl_keymap = vi_replace_map;
+ return (0);
+}
+
+#if 0
+/* Try to complete the word we are standing on or the word that ends with
+ the previous character. A space matches everything. Word delimiters are
+ space and ;. */
+int
+rl_vi_possible_completions()
+{
+ int save_pos = rl_point;
+
+ if (rl_line_buffer[rl_point] != ' ' && rl_line_buffer[rl_point] != ';')
+ {
+ while (rl_point < rl_end && rl_line_buffer[rl_point] != ' ' &&
+ rl_line_buffer[rl_point] != ';')
+ rl_point++;
+ }
+ else if (rl_line_buffer[rl_point - 1] == ';')
+ {
+ rl_ding ();
+ return (0);
+ }
+
+ rl_possible_completions ();
+ rl_point = save_pos;
+
+ return (0);
+}
+#endif
+
+/* Functions to save and restore marks. */
+int
+rl_vi_set_mark (count, key)
+ int count, key;
+{
+ int ch;
+
+ RL_SETSTATE(RL_STATE_MOREINPUT);
+ ch = rl_read_key ();
+ RL_UNSETSTATE(RL_STATE_MOREINPUT);
+
+ if (ch < 'a' || ch > 'z')
+ {
+ rl_ding ();
+ return -1;
+ }
+ ch -= 'a';
+ vi_mark_chars[ch] = rl_point;
+ return 0;
+}
+
+int
+rl_vi_goto_mark (count, key)
+ int count, key;
+{
+ int ch;
+
+ RL_SETSTATE(RL_STATE_MOREINPUT);
+ ch = rl_read_key ();
+ RL_UNSETSTATE(RL_STATE_MOREINPUT);
+
+ if (ch == '`')
+ {
+ rl_point = rl_mark;
+ return 0;
+ }
+ else if (ch < 'a' || ch > 'z')
+ {
+ rl_ding ();
+ return -1;
+ }
+
+ ch -= 'a';
+ if (vi_mark_chars[ch] == -1)
+ {
+ rl_ding ();
+ return -1;
+ }
+ rl_point = vi_mark_chars[ch];
+ return 0;
+}
+
+#endif /* VI_MODE */
projects / platform / upstream / bash.git / commitdiff