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author | Daniel Jacobowitz <drow@false.org> | 2006-05-05 18:26:14 +0000 |
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committer | Daniel Jacobowitz <drow@false.org> | 2006-05-05 18:26:14 +0000 |
commit | 5bdf8622148be4764cc0757fd5b3e41f4d73b2b2 (patch) | |
tree | ec69331983824d95160ec9a14f71d6bccd23ed42 /readline/misc.c | |
parent | 7f8411279d59ee620d1e2e153329c0bd47c4ca86 (diff) | |
download | gdb-5bdf8622148be4764cc0757fd5b3e41f4d73b2b2.zip gdb-5bdf8622148be4764cc0757fd5b3e41f4d73b2b2.tar.gz gdb-5bdf8622148be4764cc0757fd5b3e41f4d73b2b2.tar.bz2 |
Readline 5.1 import for HEAD.
Diffstat (limited to 'readline/misc.c')
-rw-r--r-- | readline/misc.c | 271 |
1 files changed, 188 insertions, 83 deletions
diff --git a/readline/misc.c b/readline/misc.c index f3775d3..d455832 100644 --- a/readline/misc.c +++ b/readline/misc.c @@ -1,6 +1,6 @@ /* misc.c -- miscellaneous bindable readline functions. */ -/* Copyright (C) 1987-2002 Free Software Foundation, Inc. +/* Copyright (C) 1987-2005 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. @@ -63,6 +63,8 @@ void _rl_free_history_entry PARAMS((HIST_ENTRY *)); to preserve the value of rl_point from line to line. */ int _rl_history_preserve_point = 0; +_rl_arg_cxt _rl_argcxt; + /* Saved target point for when _rl_history_preserve_point is set. Special value of -1 means that point is at the end of the line. */ int _rl_history_saved_point = -1; @@ -73,77 +75,74 @@ int _rl_history_saved_point = -1; /* */ /* **************************************************************** */ -/* Handle C-u style numeric args, as well as M--, and M-digits. */ -static int -rl_digit_loop () +int +_rl_arg_overflow () { - int key, c, sawminus, sawdigits; + if (rl_numeric_arg > 1000000) + { + _rl_argcxt = 0; + rl_explicit_arg = rl_numeric_arg = 0; + rl_ding (); + rl_restore_prompt (); + rl_clear_message (); + RL_UNSETSTATE(RL_STATE_NUMERICARG); + return 1; + } + return 0; +} +void +_rl_arg_init () +{ rl_save_prompt (); - + _rl_argcxt = 0; RL_SETSTATE(RL_STATE_NUMERICARG); - sawminus = sawdigits = 0; - while (1) - { - if (rl_numeric_arg > 1000000) - { - sawdigits = rl_explicit_arg = rl_numeric_arg = 0; - rl_ding (); - rl_restore_prompt (); - 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_abort_internal (); - return -1; - } +int +_rl_arg_getchar () +{ + int c; - /* If we see a key bound to `universal-argument' after seeing digits, - it ends the argument but is otherwise ignored. */ - if (_rl_keymap[c].type == ISFUNC && - _rl_keymap[c].function == rl_universal_argument) - { - if (sawdigits == 0) - { - rl_numeric_arg *= 4; - continue; - } - else - { - RL_SETSTATE(RL_STATE_MOREINPUT); - key = rl_read_key (); - RL_UNSETSTATE(RL_STATE_MOREINPUT); - rl_restore_prompt (); - rl_clear_message (); - RL_UNSETSTATE(RL_STATE_NUMERICARG); - return (_rl_dispatch (key, _rl_keymap)); - } - } + rl_message ("(arg: %d) ", rl_arg_sign * rl_numeric_arg); + RL_SETSTATE(RL_STATE_MOREINPUT); + c = rl_read_key (); + RL_UNSETSTATE(RL_STATE_MOREINPUT); - c = UNMETA (c); + return c; +} - if (_rl_digit_p (c)) - { - rl_numeric_arg = rl_explicit_arg ? (rl_numeric_arg * 10) + c - '0' : c - '0'; - sawdigits = rl_explicit_arg = 1; - } - else if (c == '-' && rl_explicit_arg == 0) +/* Process C as part of the current numeric argument. Return -1 if the + argument should be aborted, 0 if we should not read any more chars, and + 1 if we should continue to read chars. */ +int +_rl_arg_dispatch (cxt, c) + _rl_arg_cxt cxt; + int c; +{ + int key, r; + + key = c; + + /* If we see a key bound to `universal-argument' after seeing digits, + it ends the argument but is otherwise ignored. */ + if (_rl_keymap[c].type == ISFUNC && _rl_keymap[c].function == rl_universal_argument) + { + if ((cxt & NUM_SAWDIGITS) == 0) { - rl_numeric_arg = sawminus = 1; - rl_arg_sign = -1; + rl_numeric_arg *= 4; + return 1; } + else if (RL_ISSTATE (RL_STATE_CALLBACK)) + { + _rl_argcxt |= NUM_READONE; + return 0; /* XXX */ + } else { - /* Make M-- command equivalent to M--1 command. */ - if (sawminus && rl_numeric_arg == 1 && rl_explicit_arg == 0) - rl_explicit_arg = 1; + RL_SETSTATE(RL_STATE_MOREINPUT); + key = rl_read_key (); + RL_UNSETSTATE(RL_STATE_MOREINPUT); rl_restore_prompt (); rl_clear_message (); RL_UNSETSTATE(RL_STATE_NUMERICARG); @@ -151,35 +150,96 @@ rl_digit_loop () } } - /*NOTREACHED*/ -} + c = UNMETA (c); -/* Add the current digit to the argument in progress. */ -int -rl_digit_argument (ignore, key) - int ignore, key; -{ - rl_execute_next (key); - return (rl_digit_loop ()); + if (_rl_digit_p (c)) + { + r = _rl_digit_value (c); + rl_numeric_arg = rl_explicit_arg ? (rl_numeric_arg * 10) + r : r; + rl_explicit_arg = 1; + _rl_argcxt |= NUM_SAWDIGITS; + } + else if (c == '-' && rl_explicit_arg == 0) + { + rl_numeric_arg = 1; + _rl_argcxt |= NUM_SAWMINUS; + rl_arg_sign = -1; + } + else + { + /* Make M-- command equivalent to M--1 command. */ + if ((_rl_argcxt & NUM_SAWMINUS) && rl_numeric_arg == 1 && rl_explicit_arg == 0) + rl_explicit_arg = 1; + rl_restore_prompt (); + rl_clear_message (); + RL_UNSETSTATE(RL_STATE_NUMERICARG); + + r = _rl_dispatch (key, _rl_keymap); + if (RL_ISSTATE (RL_STATE_CALLBACK)) + { + /* At worst, this will cause an extra redisplay. Otherwise, + we have to wait until the next character comes in. */ + if (rl_done == 0) + (*rl_redisplay_function) (); + r = 0; + } + return r; + } + + return 1; } -/* What to do when you abort reading an argument. */ -int -rl_discard_argument () +/* Handle C-u style numeric args, as well as M--, and M-digits. */ +static int +rl_digit_loop () { - rl_ding (); - rl_clear_message (); - _rl_init_argument (); - return 0; + int c, r; + + while (1) + { + if (_rl_arg_overflow ()) + return 1; + + c = _rl_arg_getchar (); + + if (c < 0) + { + _rl_abort_internal (); + return -1; + } + + r = _rl_arg_dispatch (_rl_argcxt, c); + if (r <= 0 || (RL_ISSTATE (RL_STATE_NUMERICARG) == 0)) + break; + } } /* Create a default argument. */ -int -_rl_init_argument () +void +_rl_reset_argument () { rl_numeric_arg = rl_arg_sign = 1; rl_explicit_arg = 0; - return 0; + _rl_argcxt = 0; +} + +/* Start a numeric argument with initial value KEY */ +int +rl_digit_argument (ignore, key) + int ignore, key; +{ + _rl_arg_init (); + if (RL_ISSTATE (RL_STATE_CALLBACK)) + { + _rl_arg_dispatch (_rl_argcxt, key); + rl_message ("(arg: %d) ", rl_arg_sign * rl_numeric_arg); + return 0; + } + else + { + rl_execute_next (key); + return (rl_digit_loop ()); + } } /* C-u, universal argument. Multiply the current argument by 4. @@ -189,8 +249,43 @@ int rl_universal_argument (count, key) int count, key; { + _rl_arg_init (); rl_numeric_arg *= 4; - return (rl_digit_loop ()); + + return (RL_ISSTATE (RL_STATE_CALLBACK) ? 0 : rl_digit_loop ()); +} + +int +_rl_arg_callback (cxt) + _rl_arg_cxt cxt; +{ + int c, r; + + c = _rl_arg_getchar (); + + if (_rl_argcxt & NUM_READONE) + { + _rl_argcxt &= ~NUM_READONE; + rl_restore_prompt (); + rl_clear_message (); + RL_UNSETSTATE(RL_STATE_NUMERICARG); + rl_execute_next (c); + return 0; + } + + r = _rl_arg_dispatch (cxt, c); + return (r != 1); +} + +/* What to do when you abort reading an argument. */ +int +rl_discard_argument () +{ + rl_ding (); + rl_clear_message (); + _rl_reset_argument (); + + return 0; } /* **************************************************************** */ @@ -225,8 +320,10 @@ _rl_free_history_entry (entry) { if (entry == 0) return; - if (entry->line) - free (entry->line); + + FREE (entry->line); + FREE (entry->timestamp); + free (entry); } @@ -242,6 +339,7 @@ rl_maybe_replace_line () { temp = replace_history_entry (where_history (), rl_line_buffer, (histdata_t)rl_undo_list); free (temp->line); + FREE (temp->timestamp); free (temp); } return 0; @@ -253,6 +351,8 @@ rl_maybe_unsave_line () { if (_rl_saved_line_for_history) { + /* Can't call with `1' because rl_undo_list might point to an undo + list from a history entry, as in rl_replace_from_history() below. */ rl_replace_line (_rl_saved_line_for_history->line, 0); rl_undo_list = (UNDO_LIST *)_rl_saved_line_for_history->data; _rl_free_history_entry (_rl_saved_line_for_history); @@ -272,8 +372,10 @@ rl_maybe_save_line () { _rl_saved_line_for_history = (HIST_ENTRY *)xmalloc (sizeof (HIST_ENTRY)); _rl_saved_line_for_history->line = savestring (rl_line_buffer); + _rl_saved_line_for_history->timestamp = (char *)NULL; _rl_saved_line_for_history->data = (char *)rl_undo_list; } + return 0; } @@ -298,7 +400,7 @@ _rl_history_set_point () rl_point = rl_end; #if defined (VI_MODE) - if (rl_editing_mode == vi_mode) + if (rl_editing_mode == vi_mode && _rl_keymap != vi_insertion_keymap) rl_point = 0; #endif /* VI_MODE */ @@ -311,6 +413,8 @@ rl_replace_from_history (entry, flags) HIST_ENTRY *entry; int flags; /* currently unused */ { + /* Can't call with `1' because rl_undo_list might point to an undo list + from a history entry, just like we're setting up here. */ rl_replace_line (entry->line, 0); rl_undo_list = (UNDO_LIST *)entry->data; rl_point = rl_end; @@ -435,6 +539,7 @@ rl_get_previous_history (count, key) rl_replace_from_history (temp, 0); _rl_history_set_point (); } + return 0; } |