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| This is history.info, produced by makeinfo version 6.8 from | |
| history.texi. | |
| This document describes the GNU History library (version 8.2, 19 | |
| September 2022), a programming tool that provides a consistent user | |
| interface for recalling lines of previously typed input. | |
| Copyright (C) 1988-2022 Free Software Foundation, Inc. | |
| Permission is granted to copy, distribute and/or modify this | |
| document under the terms of the GNU Free Documentation License, | |
| Version 1.3 or any later version published by the Free Software | |
| Foundation; with no Invariant Sections, no Front-Cover Texts, and | |
| no Back-Cover Texts. A copy of the license is included in the | |
| section entitled "GNU Free Documentation License". | |
| INFO-DIR-SECTION Libraries | |
| START-INFO-DIR-ENTRY | |
| * History: (history). The GNU history library API. | |
| END-INFO-DIR-ENTRY | |
| File: history.info, Node: Top, Next: Using History Interactively, Up: (dir) | |
| GNU History Library | |
| ******************* | |
| This document describes the GNU History library, a programming tool that | |
| provides a consistent user interface for recalling lines of previously | |
| typed input. | |
| * Menu: | |
| * Using History Interactively:: GNU History User's Manual. | |
| * Programming with GNU History:: GNU History Programmer's Manual. | |
| * GNU Free Documentation License:: License for copying this manual. | |
| * Concept Index:: Index of concepts described in this manual. | |
| * Function and Variable Index:: Index of externally visible functions | |
| and variables. | |
| File: history.info, Node: Using History Interactively, Next: Programming with GNU History, Prev: Top, Up: Top | |
| 1 Using History Interactively | |
| ***************************** | |
| This chapter describes how to use the GNU History Library interactively, | |
| from a user's standpoint. It should be considered a user's guide. For | |
| information on using the GNU History Library in your own programs, *note | |
| Programming with GNU History::. | |
| * Menu: | |
| * History Interaction:: What it feels like using History as a user. | |
| File: history.info, Node: History Interaction, Up: Using History Interactively | |
| 1.1 History Expansion | |
| ===================== | |
| The History library provides a history expansion feature that is similar | |
| to the history expansion provided by 'csh'. This section describes the | |
| syntax used to manipulate the history information. | |
| History expansions introduce words from the history list into the | |
| input stream, making it easy to repeat commands, insert the arguments to | |
| a previous command into the current input line, or fix errors in | |
| previous commands quickly. | |
| History expansion takes place in two parts. The first is to | |
| determine which line from the history list should be used during | |
| substitution. The second is to select portions of that line for | |
| inclusion into the current one. The line selected from the history is | |
| called the "event", and the portions of that line that are acted upon | |
| are called "words". Various "modifiers" are available to manipulate the | |
| selected words. The line is broken into words in the same fashion that | |
| Bash does, so that several words surrounded by quotes are considered one | |
| word. History expansions are introduced by the appearance of the | |
| history expansion character, which is '!' by default. | |
| History expansion implements shell-like quoting conventions: a | |
| backslash can be used to remove the special handling for the next | |
| character; single quotes enclose verbatim sequences of characters, and | |
| can be used to inhibit history expansion; and characters enclosed within | |
| double quotes may be subject to history expansion, since backslash can | |
| escape the history expansion character, but single quotes may not, since | |
| they are not treated specially within double quotes. | |
| * Menu: | |
| * Event Designators:: How to specify which history line to use. | |
| * Word Designators:: Specifying which words are of interest. | |
| * Modifiers:: Modifying the results of substitution. | |
| File: history.info, Node: Event Designators, Next: Word Designators, Up: History Interaction | |
| 1.1.1 Event Designators | |
| ----------------------- | |
| An event designator is a reference to a command line entry in the | |
| history list. Unless the reference is absolute, events are relative to | |
| the current position in the history list. | |
| '!' | |
| Start a history substitution, except when followed by a space, tab, | |
| the end of the line, or '='. | |
| '!N' | |
| Refer to command line N. | |
| '!-N' | |
| Refer to the command N lines back. | |
| '!!' | |
| Refer to the previous command. This is a synonym for '!-1'. | |
| '!STRING' | |
| Refer to the most recent command preceding the current position in | |
| the history list starting with STRING. | |
| '!?STRING[?]' | |
| Refer to the most recent command preceding the current position in | |
| the history list containing STRING. The trailing '?' may be | |
| omitted if the STRING is followed immediately by a newline. If | |
| STRING is missing, the string from the most recent search is used; | |
| it is an error if there is no previous search string. | |
| '^STRING1^STRING2^' | |
| Quick Substitution. Repeat the last command, replacing STRING1 | |
| with STRING2. Equivalent to '!!:s^STRING1^STRING2^'. | |
| '!#' | |
| The entire command line typed so far. | |
| File: history.info, Node: Word Designators, Next: Modifiers, Prev: Event Designators, Up: History Interaction | |
| 1.1.2 Word Designators | |
| ---------------------- | |
| Word designators are used to select desired words from the event. A ':' | |
| separates the event specification from the word designator. It may be | |
| omitted if the word designator begins with a '^', '$', '*', '-', or '%'. | |
| Words are numbered from the beginning of the line, with the first word | |
| being denoted by 0 (zero). Words are inserted into the current line | |
| separated by single spaces. | |
| For example, | |
| '!!' | |
| designates the preceding command. When you type this, the | |
| preceding command is repeated in toto. | |
| '!!:$' | |
| designates the last argument of the preceding command. This may be | |
| shortened to '!$'. | |
| '!fi:2' | |
| designates the second argument of the most recent command starting | |
| with the letters 'fi'. | |
| Here are the word designators: | |
| '0 (zero)' | |
| The '0'th word. For many applications, this is the command word. | |
| 'N' | |
| The Nth word. | |
| '^' | |
| The first argument; that is, word 1. | |
| '$' | |
| The last argument. | |
| '%' | |
| The first word matched by the most recent '?STRING?' search, if the | |
| search string begins with a character that is part of a word. | |
| 'X-Y' | |
| A range of words; '-Y' abbreviates '0-Y'. | |
| '*' | |
| All of the words, except the '0'th. This is a synonym for '1-$'. | |
| It is not an error to use '*' if there is just one word in the | |
| event; the empty string is returned in that case. | |
| 'X*' | |
| Abbreviates 'X-$' | |
| 'X-' | |
| Abbreviates 'X-$' like 'X*', but omits the last word. If 'x' is | |
| missing, it defaults to 0. | |
| If a word designator is supplied without an event specification, the | |
| previous command is used as the event. | |
| File: history.info, Node: Modifiers, Prev: Word Designators, Up: History Interaction | |
| 1.1.3 Modifiers | |
| --------------- | |
| After the optional word designator, you can add a sequence of one or | |
| more of the following modifiers, each preceded by a ':'. These modify, | |
| or edit, the word or words selected from the history event. | |
| 'h' | |
| Remove a trailing pathname component, leaving only the head. | |
| 't' | |
| Remove all leading pathname components, leaving the tail. | |
| 'r' | |
| Remove a trailing suffix of the form '.SUFFIX', leaving the | |
| basename. | |
| 'e' | |
| Remove all but the trailing suffix. | |
| 'p' | |
| Print the new command but do not execute it. | |
| 's/OLD/NEW/' | |
| Substitute NEW for the first occurrence of OLD in the event line. | |
| Any character may be used as the delimiter in place of '/'. The | |
| delimiter may be quoted in OLD and NEW with a single backslash. If | |
| '&' appears in NEW, it is replaced by OLD. A single backslash will | |
| quote the '&'. If OLD is null, it is set to the last OLD | |
| substituted, or, if no previous history substitutions took place, | |
| the last STRING in a !?STRING'[?]' search. If NEW is null, each | |
| matching OLD is deleted. The final delimiter is optional if it is | |
| the last character on the input line. | |
| '&' | |
| Repeat the previous substitution. | |
| 'g' | |
| 'a' | |
| Cause changes to be applied over the entire event line. Used in | |
| conjunction with 's', as in 'gs/OLD/NEW/', or with '&'. | |
| 'G' | |
| Apply the following 's' or '&' modifier once to each word in the | |
| event. | |
| File: history.info, Node: Programming with GNU History, Next: GNU Free Documentation License, Prev: Using History Interactively, Up: Top | |
| 2 Programming with GNU History | |
| ****************************** | |
| This chapter describes how to interface programs that you write with the | |
| GNU History Library. It should be considered a technical guide. For | |
| information on the interactive use of GNU History, *note Using History | |
| Interactively::. | |
| * Menu: | |
| * Introduction to History:: What is the GNU History library for? | |
| * History Storage:: How information is stored. | |
| * History Functions:: Functions that you can use. | |
| * History Variables:: Variables that control behaviour. | |
| * History Programming Example:: Example of using the GNU History Library. | |
| File: history.info, Node: Introduction to History, Next: History Storage, Up: Programming with GNU History | |
| 2.1 Introduction to History | |
| =========================== | |
| Many programs read input from the user a line at a time. The GNU | |
| History library is able to keep track of those lines, associate | |
| arbitrary data with each line, and utilize information from previous | |
| lines in composing new ones. | |
| A programmer using the History library has available functions for | |
| remembering lines on a history list, associating arbitrary data with a | |
| line, removing lines from the list, searching through the list for a | |
| line containing an arbitrary text string, and referencing any line in | |
| the list directly. In addition, a history "expansion" function is | |
| available which provides for a consistent user interface across | |
| different programs. | |
| The user using programs written with the History library has the | |
| benefit of a consistent user interface with a set of well-known commands | |
| for manipulating the text of previous lines and using that text in new | |
| commands. The basic history manipulation commands are similar to the | |
| history substitution provided by 'csh'. | |
| The programmer can also use the Readline library, which includes some | |
| history manipulation by default, and has the added advantage of command | |
| line editing. | |
| Before declaring any functions using any functionality the History | |
| library provides in other code, an application writer should include the | |
| file '<readline/history.h>' in any file that uses the History library's | |
| features. It supplies extern declarations for all of the library's | |
| public functions and variables, and declares all of the public data | |
| structures. | |
| File: history.info, Node: History Storage, Next: History Functions, Prev: Introduction to History, Up: Programming with GNU History | |
| 2.2 History Storage | |
| =================== | |
| The history list is an array of history entries. A history entry is | |
| declared as follows: | |
| typedef void *histdata_t; | |
| typedef struct _hist_entry { | |
| char *line; | |
| char *timestamp; | |
| histdata_t data; | |
| } HIST_ENTRY; | |
| The history list itself might therefore be declared as | |
| HIST_ENTRY **the_history_list; | |
| The state of the History library is encapsulated into a single | |
| structure: | |
| /* | |
| * A structure used to pass around the current state of the history. | |
| */ | |
| 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; | |
| If the flags member includes 'HS_STIFLED', the history has been | |
| stifled. | |
| File: history.info, Node: History Functions, Next: History Variables, Prev: History Storage, Up: Programming with GNU History | |
| 2.3 History Functions | |
| ===================== | |
| This section describes the calling sequence for the various functions | |
| exported by the GNU History library. | |
| * Menu: | |
| * Initializing History and State Management:: Functions to call when you | |
| want to use history in a | |
| program. | |
| * History List Management:: Functions used to manage the list | |
| of history entries. | |
| * Information About the History List:: Functions returning information about | |
| the history list. | |
| * Moving Around the History List:: Functions used to change the position | |
| in the history list. | |
| * Searching the History List:: Functions to search the history list | |
| for entries containing a string. | |
| * Managing the History File:: Functions that read and write a file | |
| containing the history list. | |
| * History Expansion:: Functions to perform csh-like history | |
| expansion. | |
| File: history.info, Node: Initializing History and State Management, Next: History List Management, Up: History Functions | |
| 2.3.1 Initializing History and State Management | |
| ----------------------------------------------- | |
| This section describes functions used to initialize and manage the state | |
| of the History library when you want to use the history functions in | |
| your program. | |
| -- Function: void using_history (void) | |
| Begin a session in which the history functions might be used. This | |
| initializes the interactive variables. | |
| -- Function: HISTORY_STATE * history_get_history_state (void) | |
| Return a structure describing the current state of the input | |
| history. | |
| -- Function: void history_set_history_state (HISTORY_STATE *state) | |
| Set the state of the history list according to STATE. | |
| File: history.info, Node: History List Management, Next: Information About the History List, Prev: Initializing History and State Management, Up: History Functions | |
| 2.3.2 History List Management | |
| ----------------------------- | |
| These functions manage individual entries on the history list, or set | |
| parameters managing the list itself. | |
| -- Function: void add_history (const char *string) | |
| Place STRING at the end of the history list. The associated data | |
| field (if any) is set to 'NULL'. If the maximum number of history | |
| entries has been set using 'stifle_history()', and the new number | |
| of history entries would exceed that maximum, the oldest history | |
| entry is removed. | |
| -- Function: void add_history_time (const char *string) | |
| Change the time stamp associated with the most recent history entry | |
| to STRING. | |
| -- Function: HIST_ENTRY * remove_history (int which) | |
| Remove history entry at offset WHICH from the history. The removed | |
| element is returned so you can free the line, data, and containing | |
| structure. | |
| -- Function: histdata_t free_history_entry (HIST_ENTRY *histent) | |
| Free the history entry HISTENT and any history library private data | |
| associated with it. Returns the application-specific data so the | |
| caller can dispose of it. | |
| -- Function: HIST_ENTRY * replace_history_entry (int which, const char | |
| *line, histdata_t data) | |
| Make the history entry at offset WHICH have LINE and DATA. This | |
| returns the old entry so the caller can dispose of any | |
| application-specific data. In the case of an invalid WHICH, a | |
| 'NULL' pointer is returned. | |
| -- Function: void clear_history (void) | |
| Clear the history list by deleting all the entries. | |
| -- Function: void stifle_history (int max) | |
| Stifle the history list, remembering only the last MAX entries. | |
| The history list will contain only MAX entries at a time. | |
| -- Function: int unstifle_history (void) | |
| Stop stifling the history. This returns the previously-set maximum | |
| number of history entries (as set by 'stifle_history()'). The | |
| value is positive if the history was stifled, negative if it | |
| wasn't. | |
| -- Function: int history_is_stifled (void) | |
| Returns non-zero if the history is stifled, zero if it is not. | |
| File: history.info, Node: Information About the History List, Next: Moving Around the History List, Prev: History List Management, Up: History Functions | |
| 2.3.3 Information About the History List | |
| ---------------------------------------- | |
| These functions return information about the entire history list or | |
| individual list entries. | |
| -- Function: HIST_ENTRY ** history_list (void) | |
| 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'. | |
| -- Function: int where_history (void) | |
| Returns the offset of the current history element. | |
| -- Function: HIST_ENTRY * current_history (void) | |
| Return the history entry at the current position, as determined by | |
| 'where_history()'. If there is no entry there, return a 'NULL' | |
| pointer. | |
| -- Function: HIST_ENTRY * history_get (int offset) | |
| Return the history entry at position OFFSET. The range of valid | |
| values of OFFSET starts at 'history_base' and ends at | |
| HISTORY_LENGTH - 1 (*note History Variables::). If there is no | |
| entry there, or if OFFSET is outside the valid range, return a | |
| 'NULL' pointer. | |
| -- Function: time_t history_get_time (HIST_ENTRY *entry) | |
| Return the time stamp associated with the history entry ENTRY. If | |
| the timestamp is missing or invalid, return 0. | |
| -- Function: int history_total_bytes (void) | |
| Return the number of bytes that the primary history entries are | |
| using. This function returns the sum of the lengths of all the | |
| lines in the history. | |
| File: history.info, Node: Moving Around the History List, Next: Searching the History List, Prev: Information About the History List, Up: History Functions | |
| 2.3.4 Moving Around the History List | |
| ------------------------------------ | |
| These functions allow the current index into the history list to be set | |
| or changed. | |
| -- Function: int history_set_pos (int pos) | |
| Set the current history offset to POS, an absolute index into the | |
| list. Returns 1 on success, 0 if POS is less than zero or greater | |
| than the number of history entries. | |
| -- Function: HIST_ENTRY * previous_history (void) | |
| Back up the current history offset to the previous history entry, | |
| and return a pointer to that entry. If there is no previous entry, | |
| return a 'NULL' pointer. | |
| -- Function: HIST_ENTRY * next_history (void) | |
| If the current history offset refers to a valid history entry, | |
| increment the current history offset. If the possibly-incremented | |
| history offset refers to a valid history entry, return a pointer to | |
| that entry; otherwise, return a 'BNULL' pointer. | |
| File: history.info, Node: Searching the History List, Next: Managing the History File, Prev: Moving Around the History List, Up: History Functions | |
| 2.3.5 Searching the History List | |
| -------------------------------- | |
| These functions allow searching of the history list for entries | |
| containing a specific string. Searching may be performed both forward | |
| and backward from the current history position. The search may be | |
| "anchored", meaning that the string must match at the beginning of the | |
| history entry. | |
| -- Function: int history_search (const char *string, int direction) | |
| Search the history for STRING, starting at the current history | |
| offset. If DIRECTION is less than 0, then the search is through | |
| previous entries, otherwise through subsequent entries. If STRING | |
| is found, then the current history index is set to that history | |
| entry, and the value returned is the offset in the line of the | |
| entry where STRING was found. Otherwise, nothing is changed, and a | |
| -1 is returned. | |
| -- Function: int history_search_prefix (const char *string, int | |
| direction) | |
| Search the history for STRING, starting at the current history | |
| offset. The search is anchored: matching lines must begin with | |
| STRING. If DIRECTION is less than 0, then the search is through | |
| previous entries, otherwise through subsequent entries. If STRING | |
| is found, then the current history index is set to that entry, and | |
| the return value is 0. Otherwise, nothing is changed, and a -1 is | |
| returned. | |
| -- Function: int history_search_pos (const char *string, int direction, | |
| int pos) | |
| Search for STRING in the history list, starting at POS, an absolute | |
| index into the list. If DIRECTION is negative, the search proceeds | |
| backward from POS, otherwise forward. Returns the absolute index | |
| of the history element where STRING was found, or -1 otherwise. | |
| File: history.info, Node: Managing the History File, Next: History Expansion, Prev: Searching the History List, Up: History Functions | |
| 2.3.6 Managing the History File | |
| ------------------------------- | |
| The History library can read the history from and write it to a file. | |
| This section documents the functions for managing a history file. | |
| -- Function: int read_history (const char *filename) | |
| 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. | |
| -- Function: int read_history_range (const char *filename, int from, | |
| int to) | |
| Read a range of lines from FILENAME, adding them to the history | |
| list. Start reading at line FROM and end at TO. If FROM is zero, | |
| start at the beginning. If TO is less than FROM, then read until | |
| the end of the file. If FILENAME is 'NULL', then read from | |
| '~/.history'. Returns 0 if successful, or 'errno' if not. | |
| -- Function: int write_history (const char *filename) | |
| Write the current history to FILENAME, overwriting FILENAME if | |
| necessary. If FILENAME is 'NULL', then write the history list to | |
| '~/.history'. Returns 0 on success, or 'errno' on a read or write | |
| error. | |
| -- Function: int append_history (int nelements, const char *filename) | |
| Append the last NELEMENTS of the history list to FILENAME. If | |
| FILENAME is 'NULL', then append to '~/.history'. Returns 0 on | |
| success, or 'errno' on a read or write error. | |
| -- Function: int history_truncate_file (const char *filename, int | |
| nlines) | |
| Truncate the history file FILENAME, leaving only the last NLINES | |
| lines. If FILENAME is 'NULL', then '~/.history' is truncated. | |
| Returns 0 on success, or 'errno' on failure. | |
| File: history.info, Node: History Expansion, Prev: Managing the History File, Up: History Functions | |
| 2.3.7 History Expansion | |
| ----------------------- | |
| These functions implement history expansion. | |
| -- Function: int history_expand (char *string, char **output) | |
| Expand STRING, placing the result into OUTPUT, a pointer to a | |
| string (*note History Interaction::). Returns: | |
| '0' | |
| If no expansions took place (or, if the only change in the | |
| text was the removal of escape characters preceding the | |
| history expansion character); | |
| '1' | |
| if expansions did take place; | |
| '-1' | |
| if there was an error in expansion; | |
| '2' | |
| if the returned line should be displayed, but not executed, as | |
| with the ':p' modifier (*note Modifiers::). | |
| If an error occurred in expansion, then OUTPUT contains a | |
| descriptive error message. | |
| -- Function: char * get_history_event (const char *string, int *cindex, | |
| int qchar) | |
| Returns the text of the history event beginning at STRING + | |
| *CINDEX. *CINDEX is modified to point to after the event | |
| specifier. At function entry, CINDEX points to the index into | |
| STRING where the history event specification begins. QCHAR is a | |
| character that is allowed to end the event specification in | |
| addition to the "normal" terminating characters. | |
| -- Function: char ** history_tokenize (const char *string) | |
| Return an array of tokens parsed out of STRING, much as the shell | |
| might. The tokens are split on the characters in the | |
| HISTORY_WORD_DELIMITERS variable, and shell quoting conventions are | |
| obeyed as described below. | |
| -- Function: char * history_arg_extract (int first, int last, const | |
| char *string) | |
| Extract a string segment consisting of the FIRST through LAST | |
| arguments present in STRING. Arguments are split using | |
| 'history_tokenize'. | |
| File: history.info, Node: History Variables, Next: History Programming Example, Prev: History Functions, Up: Programming with GNU History | |
| 2.4 History Variables | |
| ===================== | |
| This section describes the externally-visible variables exported by the | |
| GNU History Library. | |
| -- Variable: int history_base | |
| The logical offset of the first entry in the history list. | |
| -- Variable: int history_length | |
| The number of entries currently stored in the history list. | |
| -- Variable: int history_max_entries | |
| The maximum number of history entries. This must be changed using | |
| 'stifle_history()'. | |
| -- Variable: int history_write_timestamps | |
| If non-zero, timestamps are written to the history file, so they | |
| can be preserved between sessions. The default value is 0, meaning | |
| that timestamps are not saved. | |
| The current timestamp format uses the value of HISTORY_COMMENT_CHAR | |
| to delimit timestamp entries in the history file. If that variable | |
| does not have a value (the default), timestamps will not be | |
| written. | |
| -- Variable: char history_expansion_char | |
| The character that introduces a history event. The default is '!'. | |
| Setting this to 0 inhibits history expansion. | |
| -- Variable: char history_subst_char | |
| The character that invokes word substitution if found at the start | |
| of a line. The default is '^'. | |
| -- Variable: char history_comment_char | |
| During tokenization, if this character is seen as the first | |
| character of a word, then it and all subsequent characters up to a | |
| newline are ignored, suppressing history expansion for the | |
| remainder of the line. This is disabled by default. | |
| -- Variable: char * history_word_delimiters | |
| The characters that separate tokens for 'history_tokenize()'. The | |
| default value is '" \t\n()<>;&|"'. | |
| -- Variable: char * history_search_delimiter_chars | |
| The list of additional characters which can delimit a history | |
| search string, in addition to space, TAB, ':' and '?' in the case | |
| of a substring search. The default is empty. | |
| -- Variable: char * history_no_expand_chars | |
| The list of characters which inhibit history expansion if found | |
| immediately following HISTORY_EXPANSION_CHAR. The default is | |
| space, tab, newline, carriage return, and '='. | |
| -- Variable: int history_quotes_inhibit_expansion | |
| If non-zero, the history expansion code implements shell-like | |
| quoting: single-quoted words are not scanned for the history | |
| expansion character or the history comment character, and | |
| double-quoted words may have history expansion performed, since | |
| single quotes are not special within double quotes. The default | |
| value is 0. | |
| -- Variable: int history_quoting_state | |
| An application may set this variable to indicate that the current | |
| line being expanded is subject to existing quoting. If set to ''', | |
| the history expansion function will assume that the line is | |
| single-quoted and inhibit expansion until it reads an unquoted | |
| closing single quote; if set to '"', history expansion will assume | |
| the line is double quoted until it reads an unquoted closing double | |
| quote. If set to zero, the default, the history expansion function | |
| will assume the line is not quoted and treat quote characters | |
| within the line as described above. This is only effective if | |
| HISTORY_QUOTES_INHIBIT_EXPANSION is set. | |
| -- Variable: rl_linebuf_func_t * history_inhibit_expansion_function | |
| This should be set to the address of a function that takes two | |
| arguments: a 'char *' (STRING) and an 'int' index into that string | |
| (I). It should return a non-zero value if the history expansion | |
| starting at STRING[I] should not be performed; zero if the | |
| expansion should be done. It is intended for use by applications | |
| like Bash that use the history expansion character for additional | |
| purposes. By default, this variable is set to 'NULL'. | |
| File: history.info, Node: History Programming Example, Prev: History Variables, Up: Programming with GNU History | |
| 2.5 History Programming Example | |
| =============================== | |
| The following program demonstrates simple use of the GNU History | |
| Library. | |
| #include <stdio.h> | |
| #include <readline/history.h> | |
| main (argc, argv) | |
| int argc; | |
| char **argv; | |
| { | |
| char line[1024], *t; | |
| int len, done = 0; | |
| line[0] = 0; | |
| using_history (); | |
| while (!done) | |
| { | |
| printf ("history$ "); | |
| fflush (stdout); | |
| t = fgets (line, sizeof (line) - 1, stdin); | |
| if (t && *t) | |
| { | |
| len = strlen (t); | |
| if (t[len - 1] == '\n') | |
| t[len - 1] = '\0'; | |
| } | |
| if (!t) | |
| strcpy (line, "quit"); | |
| if (line[0]) | |
| { | |
| char *expansion; | |
| int result; | |
| result = history_expand (line, &expansion); | |
| if (result) | |
| fprintf (stderr, "%s\n", expansion); | |
| if (result < 0 || result == 2) | |
| { | |
| free (expansion); | |
| continue; | |
| } | |
| add_history (expansion); | |
| strncpy (line, expansion, sizeof (line) - 1); | |
| free (expansion); | |
| } | |
| if (strcmp (line, "quit") == 0) | |
| done = 1; | |
| else if (strcmp (line, "save") == 0) | |
| write_history ("history_file"); | |
| else if (strcmp (line, "read") == 0) | |
| read_history ("history_file"); | |
| else if (strcmp (line, "list") == 0) | |
| { | |
| register HIST_ENTRY **the_list; | |
| register int i; | |
| the_list = history_list (); | |
| if (the_list) | |
| for (i = 0; the_list[i]; i++) | |
| printf ("%d: %s\n", i + history_base, the_list[i]->line); | |
| } | |
| else if (strncmp (line, "delete", 6) == 0) | |
| { | |
| int which; | |
| if ((sscanf (line + 6, "%d", &which)) == 1) | |
| { | |
| HIST_ENTRY *entry = remove_history (which); | |
| if (!entry) | |
| fprintf (stderr, "No such entry %d\n", which); | |
| else | |
| { | |
| free (entry->line); | |
| free (entry); | |
| } | |
| } | |
| else | |
| { | |
| fprintf (stderr, "non-numeric arg given to `delete'\n"); | |
| } | |
| } | |
| } | |
| } | |
| File: history.info, Node: GNU Free Documentation License, Next: Concept Index, Prev: Programming with GNU History, Up: Top | |
| Appendix A GNU Free Documentation License | |
| ***************************************** | |
| Version 1.3, 3 November 2008 | |
| Copyright (C) 2000, 2001, 2002, 2007, 2008 Free Software Foundation, Inc. | |
| <http://fsf.org/> | |
| Everyone is permitted to copy and distribute verbatim copies | |
| of this license document, but changing it is not allowed. | |
| 0. PREAMBLE | |
| The purpose of this License is to make a manual, textbook, or other | |
| functional and useful document "free" in the sense of freedom: to | |
| assure everyone the effective freedom to copy and redistribute it, | |
| with or without modifying it, either commercially or | |
| noncommercially. Secondarily, this License preserves for the | |
| author and publisher a way to get credit for their work, while not | |
| being considered responsible for modifications made by others. | |
| This License is a kind of "copyleft", which means that derivative | |
| works of the document must themselves be free in the same sense. | |
| It complements the GNU General Public License, which is a copyleft | |
| license designed for free software. | |
| We have designed this License in order to use it for manuals for | |
| free software, because free software needs free documentation: a | |
| free program should come with manuals providing the same freedoms | |
| that the software does. But this License is not limited to | |
| software manuals; it can be used for any textual work, regardless | |
| of subject matter or whether it is published as a printed book. We | |
| recommend this License principally for works whose purpose is | |
| instruction or reference. | |
| 1. APPLICABILITY AND DEFINITIONS | |
| This License applies to any manual or other work, in any medium, | |
| that contains a notice placed by the copyright holder saying it can | |
| be distributed under the terms of this License. Such a notice | |
| grants a world-wide, royalty-free license, unlimited in duration, | |
| to use that work under the conditions stated herein. The | |
| "Document", below, refers to any such manual or work. Any member | |
| of the public is a licensee, and is addressed as "you". You accept | |
| the license if you copy, modify or distribute the work in a way | |
| requiring permission under copyright law. | |
| A "Modified Version" of the Document means any work containing the | |
| Document or a portion of it, either copied verbatim, or with | |
| modifications and/or translated into another language. | |
| A "Secondary Section" is a named appendix or a front-matter section | |
| of the Document that deals exclusively with the relationship of the | |
| publishers or authors of the Document to the Document's overall | |
| subject (or to related matters) and contains nothing that could | |
| fall directly within that overall subject. (Thus, if the Document | |
| is in part a textbook of mathematics, a Secondary Section may not | |
| explain any mathematics.) The relationship could be a matter of | |
| historical connection with the subject or with related matters, or | |
| of legal, commercial, philosophical, ethical or political position | |
| regarding them. | |
| The "Invariant Sections" are certain Secondary Sections whose | |
| titles are designated, as being those of Invariant Sections, in the | |
| notice that says that the Document is released under this License. | |
| If a section does not fit the above definition of Secondary then it | |
| is not allowed to be designated as Invariant. The Document may | |
| contain zero Invariant Sections. If the Document does not identify | |
| any Invariant Sections then there are none. | |
| The "Cover Texts" are certain short passages of text that are | |
| listed, as Front-Cover Texts or Back-Cover Texts, in the notice | |
| that says that the Document is released under this License. A | |
| Front-Cover Text may be at most 5 words, and a Back-Cover Text may | |
| be at most 25 words. | |
| A "Transparent" copy of the Document means a machine-readable copy, | |
| represented in a format whose specification is available to the | |
| general public, that is suitable for revising the document | |
| straightforwardly with generic text editors or (for images composed | |
| of pixels) generic paint programs or (for drawings) some widely | |
| available drawing editor, and that is suitable for input to text | |
| formatters or for automatic translation to a variety of formats | |
| suitable for input to text formatters. A copy made in an otherwise | |
| Transparent file format whose markup, or absence of markup, has | |
| been arranged to thwart or discourage subsequent modification by | |
| readers is not Transparent. An image format is not Transparent if | |
| used for any substantial amount of text. A copy that is not | |
| "Transparent" is called "Opaque". | |
| Examples of suitable formats for Transparent copies include plain | |
| ASCII without markup, Texinfo input format, LaTeX input format, | |
| SGML or XML using a publicly available DTD, and standard-conforming | |
| simple HTML, PostScript or PDF designed for human modification. | |
| Examples of transparent image formats include PNG, XCF and JPG. | |
| Opaque formats include proprietary formats that can be read and | |
| edited only by proprietary word processors, SGML or XML for which | |
| the DTD and/or processing tools are not generally available, and | |
| the machine-generated HTML, PostScript or PDF produced by some word | |
| processors for output purposes only. | |
| The "Title Page" means, for a printed book, the title page itself, | |
| plus such following pages as are needed to hold, legibly, the | |
| material this License requires to appear in the title page. For | |
| works in formats which do not have any title page as such, "Title | |
| Page" means the text near the most prominent appearance of the | |
| work's title, preceding the beginning of the body of the text. | |
| The "publisher" means any person or entity that distributes copies | |
| of the Document to the public. | |
| A section "Entitled XYZ" means a named subunit of the Document | |
| whose title either is precisely XYZ or contains XYZ in parentheses | |
| following text that translates XYZ in another language. (Here XYZ | |
| stands for a specific section name mentioned below, such as | |
| "Acknowledgements", "Dedications", "Endorsements", or "History".) | |
| To "Preserve the Title" of such a section when you modify the | |
| Document means that it remains a section "Entitled XYZ" according | |
| to this definition. | |
| The Document may include Warranty Disclaimers next to the notice | |
| which states that this License applies to the Document. These | |
| Warranty Disclaimers are considered to be included by reference in | |
| this License, but only as regards disclaiming warranties: any other | |
| implication that these Warranty Disclaimers may have is void and | |
| has no effect on the meaning of this License. | |
| 2. VERBATIM COPYING | |
| You may copy and distribute the Document in any medium, either | |
| commercially or noncommercially, provided that this License, the | |
| copyright notices, and the license notice saying this License | |
| applies to the Document are reproduced in all copies, and that you | |
| add no other conditions whatsoever to those of this License. You | |
| may not use technical measures to obstruct or control the reading | |
| or further copying of the copies you make or distribute. However, | |
| you may accept compensation in exchange for copies. If you | |
| distribute a large enough number of copies you must also follow the | |
| conditions in section 3. | |
| You may also lend copies, under the same conditions stated above, | |
| and you may publicly display copies. | |
| 3. COPYING IN QUANTITY | |
| If you publish printed copies (or copies in media that commonly | |
| have printed covers) of the Document, numbering more than 100, and | |
| the Document's license notice requires Cover Texts, you must | |
| enclose the copies in covers that carry, clearly and legibly, all | |
| these Cover Texts: Front-Cover Texts on the front cover, and | |
| Back-Cover Texts on the back cover. Both covers must also clearly | |
| and legibly identify you as the publisher of these copies. The | |
| front cover must present the full title with all words of the title | |
| equally prominent and visible. You may add other material on the | |
| covers in addition. Copying with changes limited to the covers, as | |
| long as they preserve the title of the Document and satisfy these | |
| conditions, can be treated as verbatim copying in other respects. | |
| If the required texts for either cover are too voluminous to fit | |
| legibly, you should put the first ones listed (as many as fit | |
| reasonably) on the actual cover, and continue the rest onto | |
| adjacent pages. | |
| If you publish or distribute Opaque copies of the Document | |
| numbering more than 100, you must either include a machine-readable | |
| Transparent copy along with each Opaque copy, or state in or with | |
| each Opaque copy a computer-network location from which the general | |
| network-using public has access to download using public-standard | |
| network protocols a complete Transparent copy of the Document, free | |
| of added material. If you use the latter option, you must take | |
| reasonably prudent steps, when you begin distribution of Opaque | |
| copies in quantity, to ensure that this Transparent copy will | |
| remain thus accessible at the stated location until at least one | |
| year after the last time you distribute an Opaque copy (directly or | |
| through your agents or retailers) of that edition to the public. | |
| It is requested, but not required, that you contact the authors of | |
| the Document well before redistributing any large number of copies, | |
| to give them a chance to provide you with an updated version of the | |
| Document. | |
| 4. MODIFICATIONS | |
| You may copy and distribute a Modified Version of the Document | |
| under the conditions of sections 2 and 3 above, provided that you | |
| release the Modified Version under precisely this License, with the | |
| Modified Version filling the role of the Document, thus licensing | |
| distribution and modification of the Modified Version to whoever | |
| possesses a copy of it. In addition, you must do these things in | |
| the Modified Version: | |
| A. Use in the Title Page (and on the covers, if any) a title | |
| distinct from that of the Document, and from those of previous | |
| versions (which should, if there were any, be listed in the | |
| History section of the Document). You may use the same title | |
| as a previous version if the original publisher of that | |
| version gives permission. | |
| B. List on the Title Page, as authors, one or more persons or | |
| entities responsible for authorship of the modifications in | |
| the Modified Version, together with at least five of the | |
| principal authors of the Document (all of its principal | |
| authors, if it has fewer than five), unless they release you | |
| from this requirement. | |
| C. State on the Title page the name of the publisher of the | |
| Modified Version, as the publisher. | |
| D. Preserve all the copyright notices of the Document. | |
| E. Add an appropriate copyright notice for your modifications | |
| adjacent to the other copyright notices. | |
| F. Include, immediately after the copyright notices, a license | |
| notice giving the public permission to use the Modified | |
| Version under the terms of this License, in the form shown in | |
| the Addendum below. | |
| G. Preserve in that license notice the full lists of Invariant | |
| Sections and required Cover Texts given in the Document's | |
| license notice. | |
| H. Include an unaltered copy of this License. | |
| I. Preserve the section Entitled "History", Preserve its Title, | |
| and add to it an item stating at least the title, year, new | |
| authors, and publisher of the Modified Version as given on the | |
| Title Page. If there is no section Entitled "History" in the | |
| Document, create one stating the title, year, authors, and | |
| publisher of the Document as given on its Title Page, then add | |
| an item describing the Modified Version as stated in the | |
| previous sentence. | |
| J. Preserve the network location, if any, given in the Document | |
| for public access to a Transparent copy of the Document, and | |
| likewise the network locations given in the Document for | |
| previous versions it was based on. These may be placed in the | |
| "History" section. You may omit a network location for a work | |
| that was published at least four years before the Document | |
| itself, or if the original publisher of the version it refers | |
| to gives permission. | |
| K. For any section Entitled "Acknowledgements" or "Dedications", | |
| Preserve the Title of the section, and preserve in the section | |
| all the substance and tone of each of the contributor | |
| acknowledgements and/or dedications given therein. | |
| L. Preserve all the Invariant Sections of the Document, unaltered | |
| in their text and in their titles. Section numbers or the | |
| equivalent are not considered part of the section titles. | |
| M. Delete any section Entitled "Endorsements". Such a section | |
| may not be included in the Modified Version. | |
| N. Do not retitle any existing section to be Entitled | |
| "Endorsements" or to conflict in title with any Invariant | |
| Section. | |
| O. Preserve any Warranty Disclaimers. | |
| If the Modified Version includes new front-matter sections or | |
| appendices that qualify as Secondary Sections and contain no | |
| material copied from the Document, you may at your option designate | |
| some or all of these sections as invariant. To do this, add their | |
| titles to the list of Invariant Sections in the Modified Version's | |
| license notice. These titles must be distinct from any other | |
| section titles. | |
| You may add a section Entitled "Endorsements", provided it contains | |
| nothing but endorsements of your Modified Version by various | |
| parties--for example, statements of peer review or that the text | |
| has been approved by an organization as the authoritative | |
| definition of a standard. | |
| You may add a passage of up to five words as a Front-Cover Text, | |
| and a passage of up to 25 words as a Back-Cover Text, to the end of | |
| the list of Cover Texts in the Modified Version. Only one passage | |
| of Front-Cover Text and one of Back-Cover Text may be added by (or | |
| through arrangements made by) any one entity. If the Document | |
| already includes a cover text for the same cover, previously added | |
| by you or by arrangement made by the same entity you are acting on | |
| behalf of, you may not add another; but you may replace the old | |
| one, on explicit permission from the previous publisher that added | |
| the old one. | |
| The author(s) and publisher(s) of the Document do not by this | |
| License give permission to use their names for publicity for or to | |
| assert or imply endorsement of any Modified Version. | |
| 5. COMBINING DOCUMENTS | |
| You may combine the Document with other documents released under | |
| this License, under the terms defined in section 4 above for | |
| modified versions, provided that you include in the combination all | |
| of the Invariant Sections of all of the original documents, | |
| unmodified, and list them all as Invariant Sections of your | |
| combined work in its license notice, and that you preserve all | |
| their Warranty Disclaimers. | |
| The combined work need only contain one copy of this License, and | |
| multiple identical Invariant Sections may be replaced with a single | |
| copy. If there are multiple Invariant Sections with the same name | |
| but different contents, make the title of each such section unique | |
| by adding at the end of it, in parentheses, the name of the | |
| original author or publisher of that section if known, or else a | |
| unique number. Make the same adjustment to the section titles in | |
| the list of Invariant Sections in the license notice of the | |
| combined work. | |
| In the combination, you must combine any sections Entitled | |
| "History" in the various original documents, forming one section | |
| Entitled "History"; likewise combine any sections Entitled | |
| "Acknowledgements", and any sections Entitled "Dedications". You | |
| must delete all sections Entitled "Endorsements." | |
| 6. COLLECTIONS OF DOCUMENTS | |
| You may make a collection consisting of the Document and other | |
| documents released under this License, and replace the individual | |
| copies of this License in the various documents with a single copy | |
| that is included in the collection, provided that you follow the | |
| rules of this License for verbatim copying of each of the documents | |
| in all other respects. | |
| You may extract a single document from such a collection, and | |
| distribute it individually under this License, provided you insert | |
| a copy of this License into the extracted document, and follow this | |
| License in all other respects regarding verbatim copying of that | |
| document. | |
| 7. AGGREGATION WITH INDEPENDENT WORKS | |
| A compilation of the Document or its derivatives with other | |
| separate and independent documents or works, in or on a volume of a | |
| storage or distribution medium, is called an "aggregate" if the | |
| copyright resulting from the compilation is not used to limit the | |
| legal rights of the compilation's users beyond what the individual | |
| works permit. When the Document is included in an aggregate, this | |
| License does not apply to the other works in the aggregate which | |
| are not themselves derivative works of the Document. | |
| If the Cover Text requirement of section 3 is applicable to these | |
| copies of the Document, then if the Document is less than one half | |
| of the entire aggregate, the Document's Cover Texts may be placed | |
| on covers that bracket the Document within the aggregate, or the | |
| electronic equivalent of covers if the Document is in electronic | |
| form. Otherwise they must appear on printed covers that bracket | |
| the whole aggregate. | |
| 8. TRANSLATION | |
| Translation is considered a kind of modification, so you may | |
| distribute translations of the Document under the terms of section | |
| 4. Replacing Invariant Sections with translations requires special | |
| permission from their copyright holders, but you may include | |
| translations of some or all Invariant Sections in addition to the | |
| original versions of these Invariant Sections. You may include a | |
| translation of this License, and all the license notices in the | |
| Document, and any Warranty Disclaimers, provided that you also | |
| include the original English version of this License and the | |
| original versions of those notices and disclaimers. In case of a | |
| disagreement between the translation and the original version of | |
| this License or a notice or disclaimer, the original version will | |
| prevail. | |
| If a section in the Document is Entitled "Acknowledgements", | |
| "Dedications", or "History", the requirement (section 4) to | |
| Preserve its Title (section 1) will typically require changing the | |
| actual title. | |
| 9. TERMINATION | |
| You may not copy, modify, sublicense, or distribute the Document | |
| except as expressly provided under this License. Any attempt | |
| otherwise to copy, modify, sublicense, or distribute it is void, | |
| and will automatically terminate your rights under this License. | |
| However, if you cease all violation of this License, then your | |
| license from a particular copyright holder is reinstated (a) | |
| provisionally, unless and until the copyright holder explicitly and | |
| finally terminates your license, and (b) permanently, if the | |
| copyright holder fails to notify you of the violation by some | |
| reasonable means prior to 60 days after the cessation. | |
| Moreover, your license from a particular copyright holder is | |
| reinstated permanently if the copyright holder notifies you of the | |
| violation by some reasonable means, this is the first time you have | |
| received notice of violation of this License (for any work) from | |
| that copyright holder, and you cure the violation prior to 30 days | |
| after your receipt of the notice. | |
| Termination of your rights under this section does not terminate | |
| the licenses of parties who have received copies or rights from you | |
| under this License. If your rights have been terminated and not | |
| permanently reinstated, receipt of a copy of some or all of the | |
| same material does not give you any rights to use it. | |
| 10. FUTURE REVISIONS OF THIS LICENSE | |
| The Free Software Foundation may publish new, revised versions of | |
| the GNU Free Documentation License from time to time. Such new | |
| versions will be similar in spirit to the present version, but may | |
| differ in detail to address new problems or concerns. See | |
| <http://www.gnu.org/copyleft/>. | |
| Each version of the License is given a distinguishing version | |
| number. If the Document specifies that a particular numbered | |
| version of this License "or any later version" applies to it, you | |
| have the option of following the terms and conditions either of | |
| that specified version or of any later version that has been | |
| published (not as a draft) by the Free Software Foundation. If the | |
| Document does not specify a version number of this License, you may | |
| choose any version ever published (not as a draft) by the Free | |
| Software Foundation. If the Document specifies that a proxy can | |
| decide which future versions of this License can be used, that | |
| proxy's public statement of acceptance of a version permanently | |
| authorizes you to choose that version for the Document. | |
| 11. RELICENSING | |
| "Massive Multiauthor Collaboration Site" (or "MMC Site") means any | |
| World Wide Web server that publishes copyrightable works and also | |
| provides prominent facilities for anybody to edit those works. A | |
| public wiki that anybody can edit is an example of such a server. | |
| A "Massive Multiauthor Collaboration" (or "MMC") contained in the | |
| site means any set of copyrightable works thus published on the MMC | |
| site. | |
| "CC-BY-SA" means the Creative Commons Attribution-Share Alike 3.0 | |
| license published by Creative Commons Corporation, a not-for-profit | |
| corporation with a principal place of business in San Francisco, | |
| California, as well as future copyleft versions of that license | |
| published by that same organization. | |
| "Incorporate" means to publish or republish a Document, in whole or | |
| in part, as part of another Document. | |
| An MMC is "eligible for relicensing" if it is licensed under this | |
| License, and if all works that were first published under this | |
| License somewhere other than this MMC, and subsequently | |
| incorporated in whole or in part into the MMC, (1) had no cover | |
| texts or invariant sections, and (2) were thus incorporated prior | |
| to November 1, 2008. | |
| The operator of an MMC Site may republish an MMC contained in the | |
| site under CC-BY-SA on the same site at any time before August 1, | |
| 2009, provided the MMC is eligible for relicensing. | |
| ADDENDUM: How to use this License for your documents | |
| ==================================================== | |
| To use this License in a document you have written, include a copy of | |
| the License in the document and put the following copyright and license | |
| notices just after the title page: | |
| Copyright (C) YEAR YOUR NAME. | |
| Permission is granted to copy, distribute and/or modify this document | |
| under the terms of the GNU Free Documentation License, Version 1.3 | |
| or any later version published by the Free Software Foundation; | |
| with no Invariant Sections, no Front-Cover Texts, and no Back-Cover | |
| Texts. A copy of the license is included in the section entitled ``GNU | |
| Free Documentation License''. | |
| If you have Invariant Sections, Front-Cover Texts and Back-Cover | |
| Texts, replace the "with...Texts." line with this: | |
| with the Invariant Sections being LIST THEIR TITLES, with | |
| the Front-Cover Texts being LIST, and with the Back-Cover Texts | |
| being LIST. | |
| If you have Invariant Sections without Cover Texts, or some other | |
| combination of the three, merge those two alternatives to suit the | |
| situation. | |
| If your document contains nontrivial examples of program code, we | |
| recommend releasing these examples in parallel under your choice of free | |
| software license, such as the GNU General Public License, to permit | |
| their use in free software. | |
| File: history.info, Node: Concept Index, Next: Function and Variable Index, Prev: GNU Free Documentation License, Up: Top | |
| Appendix B Concept Index | |
| ************************ | |
| [index ] | |
| * Menu: | |
| * anchored search: Searching the History List. | |
| (line 10) | |
| * event designators: Event Designators. (line 6) | |
| * history events: Event Designators. (line 8) | |
| * history expansion: History Interaction. (line 6) | |
| * History Searching: Searching the History List. | |
| (line 6) | |
| File: history.info, Node: Function and Variable Index, Prev: Concept Index, Up: Top | |
| Appendix C Function and Variable Index | |
| ************************************** | |
| [index ] | |
| * Menu: | |
| * add_history: History List Management. | |
| (line 9) | |
| * add_history_time: History List Management. | |
| (line 16) | |
| * append_history: Managing the History File. | |
| (line 28) | |
| * clear_history: History List Management. | |
| (line 37) | |
| * current_history: Information About the History List. | |
| (line 17) | |
| * free_history_entry: History List Management. | |
| (line 25) | |
| * get_history_event: History Expansion. (line 26) | |
| * history_arg_extract: History Expansion. (line 41) | |
| * history_base: History Variables. (line 9) | |
| * history_comment_char: History Variables. (line 37) | |
| * history_expand: History Expansion. (line 8) | |
| * history_expansion_char: History Variables. (line 29) | |
| * history_get: Information About the History List. | |
| (line 22) | |
| * history_get_history_state: Initializing History and State Management. | |
| (line 14) | |
| * history_get_time: Information About the History List. | |
| (line 29) | |
| * history_inhibit_expansion_function: History Variables. (line 77) | |
| * history_is_stifled: History List Management. | |
| (line 50) | |
| * history_length: History Variables. (line 12) | |
| * history_list: Information About the History List. | |
| (line 9) | |
| * history_max_entries: History Variables. (line 15) | |
| * history_no_expand_chars: History Variables. (line 52) | |
| * history_quotes_inhibit_expansion: History Variables. (line 57) | |
| * history_quoting_state: History Variables. (line 65) | |
| * history_search: Searching the History List. | |
| (line 12) | |
| * history_search_delimiter_chars: History Variables. (line 47) | |
| * history_search_pos: Searching the History List. | |
| (line 31) | |
| * history_search_prefix: Searching the History List. | |
| (line 21) | |
| * history_set_history_state: Initializing History and State Management. | |
| (line 18) | |
| * history_set_pos: Moving Around the History List. | |
| (line 9) | |
| * history_subst_char: History Variables. (line 33) | |
| * history_tokenize: History Expansion. (line 35) | |
| * history_total_bytes: Information About the History List. | |
| (line 33) | |
| * history_truncate_file: Managing the History File. | |
| (line 33) | |
| * history_word_delimiters: History Variables. (line 43) | |
| * history_write_timestamps: History Variables. (line 19) | |
| * next_history: Moving Around the History List. | |
| (line 19) | |
| * previous_history: Moving Around the History List. | |
| (line 14) | |
| * read_history: Managing the History File. | |
| (line 9) | |
| * read_history_range: Managing the History File. | |
| (line 14) | |
| * remove_history: History List Management. | |
| (line 20) | |
| * replace_history_entry: History List Management. | |
| (line 30) | |
| * stifle_history: History List Management. | |
| (line 40) | |
| * unstifle_history: History List Management. | |
| (line 44) | |
| * using_history: Initializing History and State Management. | |
| (line 10) | |
| * where_history: Information About the History List. | |
| (line 14) | |
| * write_history: Managing the History File. | |
| (line 22) | |
| Tag Table: | |
| Node: Top850 | |
| Node: Using History Interactively1495 | |
| Node: History Interaction2003 | |
| Node: Event Designators3901 | |
| Node: Word Designators5175 | |
| Node: Modifiers6935 | |
| Node: Programming with GNU History8477 | |
| Node: Introduction to History9221 | |
| Node: History Storage10899 | |
| Node: History Functions12034 | |
| Node: Initializing History and State Management13023 | |
| Node: History List Management13835 | |
| Node: Information About the History List16129 | |
| Node: Moving Around the History List17743 | |
| Node: Searching the History List18836 | |
| Node: Managing the History File20761 | |
| Node: History Expansion22581 | |
| Node: History Variables24510 | |
| Node: History Programming Example28490 | |
| Node: GNU Free Documentation License31167 | |
| Node: Concept Index56339 | |
| Node: Function and Variable Index57044 | |
| End Tag Table | |
| Local Variables: | |
| coding: utf-8 | |
| End: | |