179 lines
4.1 KiB
Modula-2
179 lines
4.1 KiB
Modula-2
This file is bind.def, from which is created bind.c.
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It implements the builtin "bind" in Bash.
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Copyright (C) 1987, 1989, 1991 Free Software Foundation, Inc.
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This file is part of GNU Bash, the Bourne Again SHell.
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Bash is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 1, or (at your option) any later
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version.
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Bash is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License along
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with Bash; see the file COPYING. If not, write to the Free Software
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Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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$PRODUCES bind.c
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$BUILTIN bind
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$DEPENDS_ON READLINE
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$FUNCTION bind_builtin
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$SHORT_DOC bind [-lvd] [-f filename] [-q name] [keyseq:readline-function]
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Bind a key sequence to a Readline function, or to a macro. The
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syntax is equivalent to that found in ~/.inputrc, but must be
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passed as a single argument: bind '"\C-x\C-r": re-read-init-file'.
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Arguments we accept:
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-l List names of functions.
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-v List function names and bindings.
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-d Dump functions and bindings such that they
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can be read back in.
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-f filename Read key bindings from FILENAME.
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-q function-name Query about which keys invoke the named function.
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$END
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#include <stdio.h>
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#include "../shell.h"
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#include <readline/readline.h>
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#include <readline/history.h>
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int
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bind_builtin (list)
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WORD_LIST *list;
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{
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extern int bash_readline_initialized;
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int processing_args = 1;
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int return_code = EXECUTION_SUCCESS;
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begin_unwind_frame ("bind");
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unwind_protect_pointer (rl_outstream);
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rl_outstream = stdout;
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if (!bash_readline_initialized)
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initialize_readline ();
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while (processing_args && list && list->word->word[0] == '-')
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{
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register int i;
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extern void rl_function_dumper ();
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char *word = list->word->word;
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list = list->next;
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for (i = 1; word[i]; i++)
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{
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switch (word[i])
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{
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case 'l':
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rl_list_funmap_names (0);
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break;
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case 'v':
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rl_function_dumper (0);
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break;
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case 'd':
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rl_function_dumper (1);
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break;
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case 'f':
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if (!list)
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{
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builtin_error ("-f requires a file name");
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goto error_exit;
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}
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else
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{
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extern int errno;
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char *initfile;
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initfile = list->word->word;
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if (rl_read_init_file (initfile) != 0)
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{
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builtin_error ("Cannot read %s: %s",
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initfile, strerror (errno));
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goto error_exit;
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}
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else
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list = list->next;
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}
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break;
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case 'q':
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if (!list)
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{
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builtin_error ("-q requires the name of a function");
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goto error_exit;
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}
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else while (list)
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{
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extern Function *rl_named_function ();
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extern char **rl_invoking_keyseqs ();
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Function *function;
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char *name, **keyseqs;
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name = list->word->word;
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list = list->next;
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function = rl_named_function (name);
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if (!function)
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{
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builtin_error ("Unknown function name `%s'", name);
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goto error_exit;
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}
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keyseqs = rl_invoking_keyseqs (function);
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if (!keyseqs)
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{
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printf ("%s is not bound to any keys.\n", name);
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}
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else
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{
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register int j;
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printf ("%s can be invoked via ", name);
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for (j = 0; j < 5 && keyseqs[j]; j++)
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printf ("\"%s\"%s", keyseqs[j],
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keyseqs[j + 1] ? ", " : ".\n");
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if (keyseqs[j])
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printf ("...\n");
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free_array (keyseqs);
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}
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}
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break;
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case '-':
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processing_args = 0;
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break;
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default:
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builtin_error ("Bad argument %c", word[i]);
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error_exit:
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return_code = EXECUTION_FAILURE;
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goto bind_exit;
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}
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}
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}
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while (list)
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{
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rl_parse_and_bind (list->word->word);
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list = list->next;
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}
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bind_exit:
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run_unwind_frame ("bind");
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return (return_code);
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}
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