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Diffstat (limited to 'contrib/libreadline/history.h')
| -rw-r--r-- | contrib/libreadline/history.h | 210 |
1 files changed, 0 insertions, 210 deletions
diff --git a/contrib/libreadline/history.h b/contrib/libreadline/history.h deleted file mode 100644 index 17ec8775117af..0000000000000 --- a/contrib/libreadline/history.h +++ /dev/null @@ -1,210 +0,0 @@ -/* History.h -- the names of functions that you can call in history. */ -/* Copyright (C) 1989, 1992 Free Software Foundation, Inc. - - This file contains the GNU History Library (the Library), a set of - routines for managing the text of previously typed lines. - - The 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 1, or (at your option) - any later version. - - The 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, - 675 Mass Ave, Cambridge, MA 02139, USA. */ - -#ifndef _HISTORY_H_ -#define _HISTORY_H_ - -/* The structure used to store a history entry. */ -typedef struct _hist_entry { - char *line; - char *data; -} HIST_ENTRY; - -/* A structure used to pass the current state of the history stuff around. */ -typedef struct _hist_state { - HIST_ENTRY **entries; /* Pointer to the entries themselves. */ - int offset; /* The location pointer within this array. */ - int length; /* Number of elements within this array. */ - int size; /* Number of slots allocated to this array. */ - int flags; -} HISTORY_STATE; - -/* Flag values for the `flags' member of HISTORY_STATE. */ -#define HS_STIFLED 0x01 - -/* Initialization and state management. */ - -/* Begin a session in which the history functions might be used. This - just initializes the interactive variables. */ -extern void using_history (); - -/* Return the current HISTORY_STATE of the history. */ -extern HISTORY_STATE *history_get_history_state (); - -/* Set the state of the current history array to STATE. */ -extern void history_set_history_state (); - -/* Manage the history list. */ - -/* Place STRING at the end of the history list. - The associated data field (if any) is set to NULL. */ -extern void add_history (); - -/* A reasonably useless function, only here for completeness. WHICH - is the magic number that tells us which element to delete. The - elements are numbered from 0. */ -extern HIST_ENTRY *remove_history (); - -/* Make the history entry at WHICH have LINE and DATA. This returns - the old entry so you can dispose of the data. In the case of an - invalid WHICH, a NULL pointer is returned. */ -extern HIST_ENTRY *replace_history_entry (); - -/* Clear the history list and start over. */ -extern void clear_history (); - -/* Stifle the history list, remembering only MAX number of entries. */ -extern void stifle_history (); - -/* Stop stifling the history. This returns the previous amount the - history was stifled by. The value is positive if the history was - stifled, negative if it wasn't. */ -extern int unstifle_history (); - -/* Return 1 if the history is stifled, 0 if it is not. */ -extern int history_is_stifled (); - -/* Information about the history list. */ - -/* Return a NULL terminated array of HIST_ENTRY which is the current input - history. Element 0 of this list is the beginning of time. If there - is no history, return NULL. */ -extern HIST_ENTRY **history_list (); - -/* Returns the number which says what history element we are now - looking at. */ -extern int where_history (); - -/* Return the history entry at the current position, as determined by - history_offset. If there is no entry there, return a NULL pointer. */ -HIST_ENTRY *current_history (); - -/* Return the history entry which is logically at OFFSET in the history - array. OFFSET is relative to history_base. */ -extern HIST_ENTRY *history_get (); - -/* Return the number of bytes that the primary history entries are using. - This just adds up the lengths of the_history->lines. */ -extern int history_total_bytes (); - -/* Moving around the history list. */ - -/* Set the position in the history list to POS. */ -int history_set_pos (); - -/* Back up history_offset to the previous history entry, and return - a pointer to that entry. If there is no previous entry, return - a NULL pointer. */ -extern HIST_ENTRY *previous_history (); - -/* Move history_offset forward to the next item in the input_history, - and return the a pointer to that entry. If there is no next entry, - return a NULL pointer. */ -extern HIST_ENTRY *next_history (); - -/* Searching the history list. */ - -/* Search the history for STRING, starting at history_offset. - If DIRECTION < 0, then the search is through previous entries, - else through subsequent. If the string is found, then - current_history () is the history entry, and the value of this function - is the offset in the line of that history entry that the string was - found in. Otherwise, nothing is changed, and a -1 is returned. */ -extern int history_search (); - -/* Search the history for STRING, starting at history_offset. - The search is anchored: matching lines must begin with string. */ -extern int history_search_prefix (); - -/* Search for STRING in the history list, starting at POS, an - absolute index into the list. DIR, if negative, says to search - backwards from POS, else forwards. - Returns the absolute index of the history element where STRING - was found, or -1 otherwise. */ -extern int history_search_pos (); - -/* Managing the history file. */ - -/* Add the contents of FILENAME to the history list, a line at a time. - If FILENAME is NULL, then read from ~/.history. Returns 0 if - successful, or errno if not. */ -extern int read_history (); - -/* Read a range of lines from FILENAME, adding them to the history list. - Start reading at the FROM'th line and end at the TO'th. If FROM - is zero, start at the beginning. If TO is less than FROM, read - until the end of the file. If FILENAME is NULL, then read from - ~/.history. Returns 0 if successful, or errno if not. */ -extern int read_history_range (); - -/* Write the current history to FILENAME. If FILENAME is NULL, - then write the history list to ~/.history. Values returned - are as in read_history (). */ -extern int write_history (); - -/* Append NELEMENT entries to FILENAME. The entries appended are from - the end of the list minus NELEMENTs up to the end of the list. */ -int append_history (); - -/* Truncate the history file, leaving only the last NLINES lines. */ -extern int history_truncate_file (); - -/* History expansion. */ - -/* Expand the string STRING, placing the result into OUTPUT, a pointer - to a string. Returns: - - 0) If no expansions took place (or, if the only change in - the text was the de-slashifying of the history expansion - character) - 1) If expansions did take place - -1) If there was an error in expansion. - 2) If the returned line should just be printed. - - If an error ocurred in expansion, then OUTPUT contains a descriptive - error message. */ -extern int history_expand (); - -/* Extract a string segment consisting of the FIRST through LAST - arguments present in STRING. Arguments are broken up as in - the shell. */ -extern char *history_arg_extract (); - -/* Return the text of the history event beginning at the current - offset into STRING. */ -extern char *get_history_event (); - -/* Return an array of tokens, much as the shell might. The tokens are - parsed out of STRING. */ -extern char **history_tokenize (); - -/* Exported history variables. */ -extern int history_base; -extern int history_length; -extern int max_input_history; -extern char history_expansion_char; -extern char history_subst_char; -extern char history_comment_char; -extern char *history_no_expand_chars; -extern char *history_search_delimiter_chars; -extern int history_quotes_inhibit_expansion; - -#endif /* !_HISTORY_H_ */ |