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Diffstat (limited to 'readline/doc/readline.0')
| -rw-r--r-- | readline/doc/readline.0 | 1043 |
1 files changed, 486 insertions, 557 deletions
diff --git a/readline/doc/readline.0 b/readline/doc/readline.0 index 87beeac..12d51fd 100644 --- a/readline/doc/readline.0 +++ b/readline/doc/readline.0 @@ -1,4 +1,4 @@ -READLINE(3) READLINE(3) +READLINE(3) READLINE(3) @@ -14,72 +14,63 @@ SSYYNNOOPPSSIISS rreeaaddlliinnee (_c_o_n_s_t _c_h_a_r _*_p_r_o_m_p_t); CCOOPPYYRRIIGGHHTT - Readline is Copyright (C) 1989-2002 by the Free Software - Foundation, Inc. + Readline is Copyright (C) 1989-2004 by the Free Software Foundation, + Inc. DDEESSCCRRIIPPTTIIOONN - rreeaaddlliinnee will read a line from the terminal and return it, - using pprroommpptt as a prompt. If pprroommpptt is NNUULLLL or the empty - string, no prompt is issued. The line returned is allo- - cated with _m_a_l_l_o_c(3); the caller must free it when fin- - ished. The line returned has the final newline removed, - so only the text of the line remains. - - rreeaaddlliinnee offers editing capabilities while the user is - entering the line. By default, the line editing commands - are similar to those of emacs. A vi-style line editing - interface is also available. - - This manual page describes only the most basic use of - rreeaaddlliinnee. Much more functionality is available; see _T_h_e - _G_N_U _R_e_a_d_l_i_n_e _L_i_b_r_a_r_y and _T_h_e _G_N_U _H_i_s_t_o_r_y _L_i_b_r_a_r_y for addi- - tional information. + rreeaaddlliinnee will read a line from the terminal and return it, using pprroommpptt + as a prompt. If pprroommpptt is NNUULLLL or the empty string, no prompt is + issued. The line returned is allocated with _m_a_l_l_o_c(3); the caller must + free it when finished. The line returned has the final newline + removed, so only the text of the line remains. + + rreeaaddlliinnee offers editing capabilities while the user is entering the + line. By default, the line editing commands are similar to those of + emacs. A vi-style line editing interface is also available. + + This manual page describes only the most basic use of rreeaaddlliinnee. Much + more functionality is available; see _T_h_e _G_N_U _R_e_a_d_l_i_n_e _L_i_b_r_a_r_y and _T_h_e + _G_N_U _H_i_s_t_o_r_y _L_i_b_r_a_r_y for additional information. RREETTUURRNN VVAALLUUEE - rreeaaddlliinnee returns the text of the line read. A blank line - returns the empty string. If EEOOFF is encountered while - reading a line, and the line is empty, NNUULLLL is returned. - If an EEOOFF is read with a non-empty line, it is treated as - a newline. + rreeaaddlliinnee returns the text of the line read. A blank line returns the + empty string. If EEOOFF is encountered while reading a line, and the line + is empty, NNUULLLL is returned. If an EEOOFF is read with a non-empty line, + it is treated as a newline. NNOOTTAATTIIOONN - An emacs-style notation is used to denote keystrokes. - Control keys are denoted by C-_k_e_y, e.g., C-n means Con- - trol-N. Similarly, _m_e_t_a keys are denoted by M-_k_e_y, so M-x - means Meta-X. (On keyboards without a _m_e_t_a key, M-_x means - ESC _x, i.e., press the Escape key then the _x key. This - makes ESC the _m_e_t_a _p_r_e_f_i_x. The combination M-C-_x means - ESC-Control-_x, or press the Escape key then hold the Con- - trol key while pressing the _x key.) - - Readline commands may be given numeric _a_r_g_u_m_e_n_t_s, which - normally act as a repeat count. Sometimes, however, it is - the sign of the argument that is significant. Passing a - negative argument to a command that acts in the forward - direction (e.g., kkiillll--lliinnee) causes that command to act in - a backward direction. Commands whose behavior with argu- - ments deviates from this are noted. - - When a command is described as _k_i_l_l_i_n_g text, the text - deleted is saved for possible future retrieval (_y_a_n_k_i_n_g). - The killed text is saved in a _k_i_l_l _r_i_n_g. Consecutive - kills cause the text to be accumulated into one unit, - which can be yanked all at once. Commands which do not - kill text separate the chunks of text on the kill ring. + An emacs-style notation is used to denote keystrokes. Control keys are + denoted by C-_k_e_y, e.g., C-n means Control-N. Similarly, _m_e_t_a keys are + denoted by M-_k_e_y, so M-x means Meta-X. (On keyboards without a _m_e_t_a + key, M-_x means ESC _x, i.e., press the Escape key then the _x key. This + makes ESC the _m_e_t_a _p_r_e_f_i_x. The combination M-C-_x means ESC-Control-_x, + or press the Escape key then hold the Control key while pressing the _x + key.) + + Readline commands may be given numeric _a_r_g_u_m_e_n_t_s, which normally act as + a repeat count. Sometimes, however, it is the sign of the argument + that is significant. Passing a negative argument to a command that + acts in the forward direction (e.g., kkiillll--lliinnee) causes that command to + act in a backward direction. Commands whose behavior with arguments + deviates from this are noted. + + When a command is described as _k_i_l_l_i_n_g text, the text deleted is saved + for possible future retrieval (_y_a_n_k_i_n_g). The killed text is saved in a + _k_i_l_l _r_i_n_g. Consecutive kills cause the text to be accumulated into one + unit, which can be yanked all at once. Commands which do not kill text + separate the chunks of text on the kill ring. IINNIITTIIAALLIIZZAATTIIOONN FFIILLEE - Readline is customized by putting commands in an initial- - ization file (the _i_n_p_u_t_r_c file). The name of this file is - taken from the value of the IINNPPUUTTRRCC environment variable. - If that variable is unset, the default is _~_/_._i_n_p_u_t_r_c. - When a program which uses the readline library starts up, - the init file is read, and the key bindings and variables - are set. There are only a few basic constructs allowed in - the readline init file. Blank lines are ignored. Lines - beginning with a ## are comments. Lines beginning with a $$ - indicate conditional constructs. Other lines denote key - bindings and variable settings. Each program using this - library may add its own commands and bindings. + Readline is customized by putting commands in an initialization file + (the _i_n_p_u_t_r_c file). The name of this file is taken from the value of + the IINNPPUUTTRRCC environment variable. If that variable is unset, the + default is _~_/_._i_n_p_u_t_r_c. When a program which uses the readline library + starts up, the init file is read, and the key bindings and variables + are set. There are only a few basic constructs allowed in the readline + init file. Blank lines are ignored. Lines beginning with a ## are com- + ments. Lines beginning with a $$ indicate conditional constructs. + Other lines denote key bindings and variable settings. Each program + using this library may add its own commands and bindings. For example, placing @@ -87,58 +78,52 @@ IINNIITTIIAALLIIZZAATTIIOONN FFIILLEE or C-Meta-u: universal-argument - into the _i_n_p_u_t_r_c would make M-C-u execute the readline - command _u_n_i_v_e_r_s_a_l_-_a_r_g_u_m_e_n_t. + into the _i_n_p_u_t_r_c would make M-C-u execute the readline command _u_n_i_v_e_r_- + _s_a_l_-_a_r_g_u_m_e_n_t. - The following symbolic character names are recognized - while processing key bindings: _D_E_L, _E_S_C, _E_S_C_A_P_E, _L_F_D, _N_E_W_- - _L_I_N_E, _R_E_T, _R_E_T_U_R_N, _R_U_B_O_U_T, _S_P_A_C_E, _S_P_C, and _T_A_B. + The following symbolic character names are recognized while processing + key bindings: _D_E_L, _E_S_C, _E_S_C_A_P_E, _L_F_D, _N_E_W_L_I_N_E, _R_E_T, _R_E_T_U_R_N, _R_U_B_O_U_T, + _S_P_A_C_E, _S_P_C, and _T_A_B. - In addition to command names, readline allows keys to be - bound to a string that is inserted when the key is pressed - (a _m_a_c_r_o). + In addition to command names, readline allows keys to be bound to a + string that is inserted when the key is pressed (a _m_a_c_r_o). KKeeyy BBiinnddiinnggss - The syntax for controlling key bindings in the _i_n_p_u_t_r_c - file is simple. All that is required is the name of the - command or the text of a macro and a key sequence to which - it should be bound. The name may be specified in one of - two ways: as a symbolic key name, possibly with _M_e_t_a_- or + The syntax for controlling key bindings in the _i_n_p_u_t_r_c file is simple. + All that is required is the name of the command or the text of a macro + and a key sequence to which it should be bound. The name may be speci- + fied in one of two ways: as a symbolic key name, possibly with _M_e_t_a_- or _C_o_n_t_r_o_l_- prefixes, or as a key sequence. - When using the form kkeeyynnaammee:_f_u_n_c_t_i_o_n_-_n_a_m_e or _m_a_c_r_o, _k_e_y_- - _n_a_m_e is the name of a key spelled out in English. For - example: + When using the form kkeeyynnaammee:_f_u_n_c_t_i_o_n_-_n_a_m_e or _m_a_c_r_o, _k_e_y_n_a_m_e is the name + of a key spelled out in English. For example: Control-u: universal-argument Meta-Rubout: backward-kill-word Control-o: "> output" - In the above example, _C_-_u is bound to the function uunniivveerr-- - ssaall--aarrgguummeenntt, _M_-_D_E_L is bound to the function bbaacckk-- - wwaarrdd--kkiillll--wwoorrdd, and _C_-_o is bound to run the macro - expressed on the right hand side (that is, to insert the + In the above example, _C_-_u is bound to the function uunniivveerrssaall--aarrgguummeenntt, + _M_-_D_E_L is bound to the function bbaacckkwwaarrdd--kkiillll--wwoorrdd, and _C_-_o is bound to + run the macro expressed on the right hand side (that is, to insert the text ``> output'' into the line). - In the second form, ""kkeeyysseeqq"":_f_u_n_c_t_i_o_n_-_n_a_m_e or _m_a_c_r_o, kkeeyy-- - sseeqq differs from kkeeyynnaammee above in that strings denoting an - entire key sequence may be specified by placing the - sequence within double quotes. Some GNU Emacs style key - escapes can be used, as in the following example, but the - symbolic character names are not recognized. + In the second form, ""kkeeyysseeqq"":_f_u_n_c_t_i_o_n_-_n_a_m_e or _m_a_c_r_o, kkeeyysseeqq differs + from kkeeyynnaammee above in that strings denoting an entire key sequence may + be specified by placing the sequence within double quotes. Some GNU + Emacs style key escapes can be used, as in the following example, but + the symbolic character names are not recognized. "\C-u": universal-argument "\C-x\C-r": re-read-init-file "\e[11~": "Function Key 1" - In this example, _C_-_u is again bound to the function uunnii-- - vveerrssaall--aarrgguummeenntt. _C_-_x _C_-_r is bound to the function - rree--rreeaadd--iinniitt--ffiillee, and _E_S_C _[ _1 _1 _~ is bound to insert the - text ``Function Key 1''. + In this example, _C_-_u is again bound to the function uunniivveerrssaall--aarrgguummeenntt. + _C_-_x _C_-_r is bound to the function rree--rreeaadd--iinniitt--ffiillee, and _E_S_C _[ _1 _1 _~ is + bound to insert the text ``Function Key 1''. - The full set of GNU Emacs style escape sequences available - when specifying key sequences is + The full set of GNU Emacs style escape sequences available when speci- + fying key sequences is \\CC-- control prefix \\MM-- meta prefix \\ee an escape character @@ -146,8 +131,8 @@ IINNIITTIIAALLIIZZAATTIIOONN FFIILLEE \\"" literal ", a double quote \\'' literal ', a single quote - In addition to the GNU Emacs style escape sequences, a - second set of backslash escapes is available: + In addition to the GNU Emacs style escape sequences, a second set of + backslash escapes is available: \\aa alert (bell) \\bb backspace \\dd delete @@ -156,190 +141,183 @@ IINNIITTIIAALLIIZZAATTIIOONN FFIILLEE \\rr carriage return \\tt horizontal tab \\vv vertical tab - \\_n_n_n the eight-bit character whose value is the - octal value _n_n_n (one to three digits) - \\xx_H_H the eight-bit character whose value is the - hexadecimal value _H_H (one or two hex digits) - - When entering the text of a macro, single or double quotes - should be used to indicate a macro definition. Unquoted - text is assumed to be a function name. In the macro body, - the backslash escapes described above are expanded. Back- - slash will quote any other character in the macro text, - including " and '. - - BBaasshh allows the current readline key bindings to be dis- - played or modified with the bbiinndd builtin command. The - editing mode may be switched during interactive use by - using the --oo option to the sseett builtin command. Other - programs using this library provide similar mechanisms. - The _i_n_p_u_t_r_c file may be edited and re-read if a program - does not provide any other means to incorporate new bind- - ings. + \\_n_n_n the eight-bit character whose value is the octal value + _n_n_n (one to three digits) + \\xx_H_H the eight-bit character whose value is the hexadecimal + value _H_H (one or two hex digits) + + When entering the text of a macro, single or double quotes should be + used to indicate a macro definition. Unquoted text is assumed to be a + function name. In the macro body, the backslash escapes described + above are expanded. Backslash will quote any other character in the + macro text, including " and '. + + BBaasshh allows the current readline key bindings to be displayed or modi- + fied with the bbiinndd builtin command. The editing mode may be switched + during interactive use by using the --oo option to the sseett builtin com- + mand. Other programs using this library provide similar mechanisms. + The _i_n_p_u_t_r_c file may be edited and re-read if a program does not pro- + vide any other means to incorporate new bindings. VVaarriiaabblleess - Readline has variables that can be used to further cus- - tomize its behavior. A variable may be set in the _i_n_p_u_t_r_c - file with a statement of the form + Readline has variables that can be used to further customize its behav- + ior. A variable may be set in the _i_n_p_u_t_r_c file with a statement of the + form sseett _v_a_r_i_a_b_l_e_-_n_a_m_e _v_a_l_u_e - Except where noted, readline variables can take the values - OOnn or OOffff (without regard to case). The variables and - their default values are: + Except where noted, readline variables can take the values OOnn or OOffff + (without regard to case). Unrecognized variable names are ignored. + When a variable value is read, empty or null values, "on" (case-insen- + sitive), and "1" are equivalent to OOnn. All other values are equivalent + to OOffff. The variables and their default values are: bbeellll--ssttyyllee ((aauuddiibbllee)) - Controls what happens when readline wants to ring - the terminal bell. If set to nnoonnee, readline never - rings the bell. If set to vviissiibbllee, readline uses a - visible bell if one is available. If set to aauuddii-- - bbllee, readline attempts to ring the terminal's bell. + Controls what happens when readline wants to ring the terminal + bell. If set to nnoonnee, readline never rings the bell. If set to + vviissiibbllee, readline uses a visible bell if one is available. If + set to aauuddiibbllee, readline attempts to ring the terminal's bell. + bbiinndd--ttttyy--ssppeecciiaall--cchhaarrss ((OOnn)) + If set to OOnn, readline attempts to bind the control characters + treated specially by the kernel's terminal driver to their read- + line equivalents. ccoommmmeenntt--bbeeggiinn ((````##'''')) - The string that is inserted in vvii mode when the - iinnsseerrtt--ccoommmmeenntt command is executed. This command - is bound to MM--## in emacs mode and to ## in vi com- - mand mode. + The string that is inserted in vvii mode when the iinnsseerrtt--ccoommmmeenntt + command is executed. This command is bound to MM--## in emacs mode + and to ## in vi command mode. ccoommpplleettiioonn--iiggnnoorree--ccaassee ((OOffff)) - If set to OOnn, readline performs filename matching - and completion in a case-insensitive fashion. + If set to OOnn, readline performs filename matching and completion + in a case-insensitive fashion. ccoommpplleettiioonn--qquueerryy--iitteemmss ((110000)) - This determines when the user is queried about - viewing the number of possible completions gener- - ated by the ppoossssiibbllee--ccoommpplleettiioonnss command. It may - be set to any integer value greater than or equal - to zero. If the number of possible completions is - greater than or equal to the value of this vari- - able, the user is asked whether or not he wishes to - view them; otherwise they are simply listed on the - terminal. + This determines when the user is queried about viewing the num- + ber of possible completions generated by the ppoossssiibbllee--ccoommppllee-- + ttiioonnss command. It may be set to any integer value greater than + or equal to zero. If the number of possible completions is + greater than or equal to the value of this variable, the user is + asked whether or not he wishes to view them; otherwise they are + simply listed on the terminal. A negative value causes readline + to never ask. ccoonnvveerrtt--mmeettaa ((OOnn)) - If set to OOnn, readline will convert characters with - the eighth bit set to an ASCII key sequence by - stripping the eighth bit and prefixing it with an - escape character (in effect, using escape as the - _m_e_t_a _p_r_e_f_i_x). + If set to OOnn, readline will convert characters with the eighth + bit set to an ASCII key sequence by stripping the eighth bit and + prefixing it with an escape character (in effect, using escape + as the _m_e_t_a _p_r_e_f_i_x). ddiissaabbllee--ccoommpplleettiioonn ((OOffff)) - If set to OOnn, readline will inhibit word comple- - tion. Completion characters will be inserted into - the line as if they had been mapped to sseellff--iinnsseerrtt. + If set to OOnn, readline will inhibit word completion. Completion + characters will be inserted into the line as if they had been + mapped to sseellff--iinnsseerrtt. eeddiittiinngg--mmooddee ((eemmaaccss)) - Controls whether readline begins with a set of key - bindings similar to emacs or vi. eeddiittiinngg--mmooddee can - be set to either eemmaaccss or vvii. + Controls whether readline begins with a set of key bindings sim- + ilar to emacs or vi. eeddiittiinngg--mmooddee can be set to either eemmaaccss or + vvii. eennaabbllee--kkeeyyppaadd ((OOffff)) - When set to OOnn, readline will try to enable the - application keypad when it is called. Some systems - need this to enable the arrow keys. + When set to OOnn, readline will try to enable the application key- + pad when it is called. Some systems need this to enable the + arrow keys. eexxppaanndd--ttiillddee ((OOffff)) - If set to oonn, tilde expansion is performed when - readline attempts word completion. - hhiissttoorryy--pprreesseerrvvee--ppooiinntt - If set to oonn, the history code attempts to place - point at the same location on each history line - retrived with pprreevviioouuss--hhiissttoorryy or nneexxtt--hhiissttoorryy. + If set to oonn, tilde expansion is performed when readline + attempts word completion. + hhiissttoorryy--pprreesseerrvvee--ppooiinntt ((OOffff)) + If set to oonn, the history code attempts to place point at the + same location on each history line retrieved with pprreevviioouuss--hhiiss-- + ttoorryy or nneexxtt--hhiissttoorryy. hhoorriizzoonnttaall--ssccrroollll--mmooddee ((OOffff)) - When set to OOnn, makes readline use a single line - for display, scrolling the input horizontally on a - single screen line when it becomes longer than the - screen width rather than wrapping to a new line. + When set to OOnn, makes readline use a single line for display, + scrolling the input horizontally on a single screen line when it + becomes longer than the screen width rather than wrapping to a + new line. iinnppuutt--mmeettaa ((OOffff)) - If set to OOnn, readline will enable eight-bit input - (that is, it will not clear the eighth bit in the - characters it reads), regardless of what the termi- - nal claims it can support. The name mmeettaa--ffllaagg is a - synonym for this variable. + If set to OOnn, readline will enable eight-bit input (that is, it + will not clear the eighth bit in the characters it reads), + regardless of what the terminal claims it can support. The name + mmeettaa--ffllaagg is a synonym for this variable. iisseeaarrcchh--tteerrmmiinnaattoorrss ((````CC--[[ CC--JJ'''')) - The string of characters that should terminate an - incremental search without subsequently executing - the character as a command. If this variable has - not been given a value, the characters _E_S_C and _C_-_J - will terminate an incremental search. + The string of characters that should terminate an incremental + search without subsequently executing the character as a com- + mand. If this variable has not been given a value, the charac- + ters _E_S_C and _C_-_J will terminate an incremental search. kkeeyymmaapp ((eemmaaccss)) - Set the current readline keymap. The set of legal - keymap names is _e_m_a_c_s_, _e_m_a_c_s_-_s_t_a_n_d_a_r_d_, _e_m_a_c_s_-_m_e_t_a_, - _e_m_a_c_s_-_c_t_l_x_, _v_i_, _v_i_-_m_o_v_e_, _v_i_-_c_o_m_m_a_n_d, and _v_i_-_i_n_s_e_r_t. - _v_i is equivalent to _v_i_-_c_o_m_m_a_n_d; _e_m_a_c_s is equivalent - to _e_m_a_c_s_-_s_t_a_n_d_a_r_d. The default value is _e_m_a_c_s. - The value of eeddiittiinngg--mmooddee also affects the default + Set the current readline keymap. The set of legal keymap names + is _e_m_a_c_s_, _e_m_a_c_s_-_s_t_a_n_d_a_r_d_, _e_m_a_c_s_-_m_e_t_a_, _e_m_a_c_s_-_c_t_l_x_, _v_i_, _v_i_-_m_o_v_e_, + _v_i_-_c_o_m_m_a_n_d, and _v_i_-_i_n_s_e_r_t. _v_i is equivalent to _v_i_-_c_o_m_m_a_n_d; + _e_m_a_c_s is equivalent to _e_m_a_c_s_-_s_t_a_n_d_a_r_d. The default value is + _e_m_a_c_s. The value of eeddiittiinngg--mmooddee also affects the default keymap. mmaarrkk--ddiirreeccttoorriieess ((OOnn)) - If set to OOnn, completed directory names have a - slash appended. + If set to OOnn, completed directory names have a slash appended. mmaarrkk--mmooddiiffiieedd--lliinneess ((OOffff)) - If set to OOnn, history lines that have been modified - are displayed with a preceding asterisk (**). + If set to OOnn, history lines that have been modified are dis- + played with a preceding asterisk (**). mmaarrkk--ssyymmlliinnkkeedd--ddiirreeccttoorriieess ((OOffff)) - If set to OOnn, completed names which are symbolic - links to directories have a slash appended (subject - to the value of mmaarrkk--ddiirreeccttoorriieess). + If set to OOnn, completed names which are symbolic links to direc- + tories have a slash appended (subject to the value of + mmaarrkk--ddiirreeccttoorriieess). mmaattcchh--hhiiddddeenn--ffiilleess ((OOnn)) - This variable, when set to OOnn, causes readline to - match files whose names begin with a `.' (hidden - files) when performing filename completion, unless - the leading `.' is supplied by the user in the - filename to be completed. + This variable, when set to OOnn, causes readline to match files + whose names begin with a `.' (hidden files) when performing + filename completion, unless the leading `.' is supplied by the + user in the filename to be completed. oouuttppuutt--mmeettaa ((OOffff)) - If set to OOnn, readline will display characters with - the eighth bit set directly rather than as a meta- - prefixed escape sequence. + If set to OOnn, readline will display characters with the eighth + bit set directly rather than as a meta-prefixed escape sequence. ppaaggee--ccoommpplleettiioonnss ((OOnn)) - If set to OOnn, readline uses an internal _m_o_r_e-like - pager to display a screenful of possible comple- - tions at a time. + If set to OOnn, readline uses an internal _m_o_r_e-like pager to dis- + play a screenful of possible completions at a time. pprriinntt--ccoommpplleettiioonnss--hhoorriizzoonnttaallllyy ((OOffff)) - If set to OOnn, readline will display completions - with matches sorted horizontally in alphabetical - order, rather than down the screen. + If set to OOnn, readline will display completions with matches + sorted horizontally in alphabetical order, rather than down the + screen. sshhooww--aallll--iiff--aammbbiigguuoouuss ((OOffff)) - This alters the default behavior of the completion - functions. If set to oonn, words which have more - than one possible completion cause the matches to - be listed immediately instead of ringing the bell. + This alters the default behavior of the completion functions. + If set to oonn, words which have more than one possible completion + cause the matches to be listed immediately instead of ringing + the bell. + sshhooww--aallll--iiff--uunnmmooddiiffiieedd ((OOffff)) + This alters the default behavior of the completion functions in + a fashion similar to sshhooww--aallll--iiff--aammbbiigguuoouuss. If set to oonn, words + which have more than one possible completion without any possi- + ble partial completion (the possible completions don't share a + common prefix) cause the matches to be listed immediately + instead of ringing the bell. vviissiibbllee--ssttaattss ((OOffff)) - If set to OOnn, a character denoting a file's type as - reported by _s_t_a_t(2) is appended to the filename - when listing possible completions. + If set to OOnn, a character denoting a file's type as reported by + _s_t_a_t(2) is appended to the filename when listing possible com- + pletions. CCoonnddiittiioonnaall CCoonnssttrruuccttss - Readline implements a facility similar in spirit to the - conditional compilation features of the C preprocessor - which allows key bindings and variable settings to be per- - formed as the result of tests. There are four parser - directives used. - - $$iiff The $$iiff construct allows bindings to be made based - on the editing mode, the terminal being used, or - the application using readline. The text of the - test extends to the end of the line; no characters - are required to isolate it. - - mmooddee The mmooddee== form of the $$iiff directive is used - to test whether readline is in emacs or vi - mode. This may be used in conjunction with - the sseett kkeeyymmaapp command, for instance, to set - bindings in the _e_m_a_c_s_-_s_t_a_n_d_a_r_d and _e_m_a_c_s_- - _c_t_l_x keymaps only if readline is starting - out in emacs mode. - - tteerrmm The tteerrmm== form may be used to include termi- - nal-specific key bindings, perhaps to bind - the key sequences output by the terminal's - function keys. The word on the right side - of the == is tested against the full name of - the terminal and the portion of the terminal - name before the first --. This allows _s_u_n to - match both _s_u_n and _s_u_n_-_c_m_d, for instance. + Readline implements a facility similar in spirit to the conditional + compilation features of the C preprocessor which allows key bindings + and variable settings to be performed as the result of tests. There + are four parser directives used. + + $$iiff The $$iiff construct allows bindings to be made based on the edit- + ing mode, the terminal being used, or the application using + readline. The text of the test extends to the end of the line; + no characters are required to isolate it. + + mmooddee The mmooddee== form of the $$iiff directive is used to test + whether readline is in emacs or vi mode. This may be + used in conjunction with the sseett kkeeyymmaapp command, for + instance, to set bindings in the _e_m_a_c_s_-_s_t_a_n_d_a_r_d and + _e_m_a_c_s_-_c_t_l_x keymaps only if readline is starting out in + emacs mode. + + tteerrmm The tteerrmm== form may be used to include terminal-specific + key bindings, perhaps to bind the key sequences output by + the terminal's function keys. The word on the right side + of the == is tested against the full name of the terminal + and the portion of the terminal name before the first --. + This allows _s_u_n to match both _s_u_n and _s_u_n_-_c_m_d, for + instance. aapppplliiccaattiioonn - The aapppplliiccaattiioonn construct is used to include - application-specific settings. Each program - using the readline library sets the _a_p_p_l_i_c_a_- - _t_i_o_n _n_a_m_e, and an initialization file can - test for a particular value. This could be - used to bind key sequences to functions use- - ful for a specific program. For instance, - the following command adds a key sequence - that quotes the current or previous word in + The aapppplliiccaattiioonn construct is used to include application- + specific settings. Each program using the readline + library sets the _a_p_p_l_i_c_a_t_i_o_n _n_a_m_e, and an initialization + file can test for a particular value. This could be used + to bind key sequences to functions useful for a specific + program. For instance, the following command adds a key + sequence that quotes the current or previous word in Bash: $$iiff Bash @@ -347,68 +325,60 @@ IINNIITTIIAALLIIZZAATTIIOONN FFIILLEE "\C-xq": "\eb\"\ef\"" $$eennddiiff - $$eennddiiff This command, as seen in the previous example, ter- - minates an $$iiff command. + $$eennddiiff This command, as seen in the previous example, terminates an $$iiff + command. - $$eellssee Commands in this branch of the $$iiff directive are - executed if the test fails. + $$eellssee Commands in this branch of the $$iiff directive are executed if the + test fails. $$iinncclluuddee - This directive takes a single filename as an argu- - ment and reads commands and bindings from that - file. For example, the following directive would - read _/_e_t_c_/_i_n_p_u_t_r_c: + This directive takes a single filename as an argument and reads + commands and bindings from that file. For example, the follow- + ing directive would read _/_e_t_c_/_i_n_p_u_t_r_c: $$iinncclluuddee _/_e_t_c_/_i_n_p_u_t_r_c SSEEAARRCCHHIINNGG - Readline provides commands for searching through the com- - mand history for lines containing a specified string. - There are two search modes: _i_n_c_r_e_m_e_n_t_a_l and _n_o_n_-_i_n_c_r_e_m_e_n_- - _t_a_l. - - Incremental searches begin before the user has finished - typing the search string. As each character of the search - string is typed, readline displays the next entry from the - history matching the string typed so far. An incremental - search requires only as many characters as needed to find - the desired history entry. To search backward in the his- - tory for a particular string, type CC--rr. Typing CC--ss - searches forward through the history. The characters pre- - sent in the value of the iisseeaarrcchh--tteerrmmiinnaattoorrss variable are - used to terminate an incremental search. If that variable - has not been assigned a value the _E_s_c_a_p_e and CC--JJ charac- - ters will terminate an incremental search. CC--GG will abort - an incremental search and restore the original line. When - the search is terminated, the history entry containing the - search string becomes the current line. - - To find other matching entries in the history list, type - CC--ss or CC--rr as appropriate. This will search backward or - forward in the history for the next line matching the - search string typed so far. Any other key sequence bound - to a readline command will terminate the search and exe- - cute that command. For instance, a newline will terminate - the search and accept the line, thereby executing the com- - mand from the history list. A movement command will ter- - minate the search, make the last line found the current - line, and begin editing. - - Non-incremental searches read the entire search string - before starting to search for matching history lines. The - search string may be typed by the user or be part of the - contents of the current line. + Readline provides commands for searching through the command history + for lines containing a specified string. There are two search modes: + _i_n_c_r_e_m_e_n_t_a_l and _n_o_n_-_i_n_c_r_e_m_e_n_t_a_l. + + Incremental searches begin before the user has finished typing the + search string. As each character of the search string is typed, read- + line displays the next entry from the history matching the string typed + so far. An incremental search requires only as many characters as + needed to find the desired history entry. To search backward in the + history for a particular string, type CC--rr. Typing CC--ss searches forward + through the history. The characters present in the value of the + iisseeaarrcchh--tteerrmmiinnaattoorrss variable are used to terminate an incremental + search. If that variable has not been assigned a value the _E_s_c_a_p_e and + CC--JJ characters will terminate an incremental search. CC--GG will abort an + incremental search and restore the original line. When the search is + terminated, the history entry containing the search string becomes the + current line. + + To find other matching entries in the history list, type CC--ss or CC--rr as + appropriate. This will search backward or forward in the history for + the next line matching the search string typed so far. Any other key + sequence bound to a readline command will terminate the search and exe- + cute that command. For instance, a newline will terminate the search + and accept the line, thereby executing the command from the history + list. A movement command will terminate the search, make the last line + found the current line, and begin editing. + + Non-incremental searches read the entire search string before starting + to search for matching history lines. The search string may be typed + by the user or be part of the contents of the current line. EEDDIITTIINNGG CCOOMMMMAANNDDSS - The following is a list of the names of the commands and - the default key sequences to which they are bound. Com- - mand names without an accompanying key sequence are - unbound by default. + The following is a list of the names of the commands and the default + key sequences to which they are bound. Command names without an accom- + panying key sequence are unbound by default. - In the following descriptions, _p_o_i_n_t refers to the current - cursor position, and _m_a_r_k refers to a cursor position - saved by the sseett--mmaarrkk command. The text between the point - and mark is referred to as the _r_e_g_i_o_n. + In the following descriptions, _p_o_i_n_t refers to the current cursor posi- + tion, and _m_a_r_k refers to a cursor position saved by the sseett--mmaarrkk com- + mand. The text between the point and mark is referred to as the + _r_e_g_i_o_n. CCoommmmaannddss ffoorr MMoovviinngg bbeeggiinnnniinngg--ooff--lliinnee ((CC--aa)) @@ -420,136 +390,122 @@ EEDDIITTIINNGG CCOOMMMMAANNDDSS bbaacckkwwaarrdd--cchhaarr ((CC--bb)) Move back a character. ffoorrwwaarrdd--wwoorrdd ((MM--ff)) - Move forward to the end of the next word. Words - are composed of alphanumeric characters (letters - and digits). + Move forward to the end of the next word. Words are composed of + alphanumeric characters (letters and digits). bbaacckkwwaarrdd--wwoorrdd ((MM--bb)) - Move back to the start of the current or previous - word. Words are composed of alphanumeric charac- - ters (letters and digits). + Move back to the start of the current or previous word. Words + are composed of alphanumeric characters (letters and digits). cclleeaarr--ssccrreeeenn ((CC--ll)) - Clear the screen leaving the current line at the - top of the screen. With an argument, refresh the - current line without clearing the screen. + Clear the screen leaving the current line at the top of the + screen. With an argument, refresh the current line without + clearing the screen. rreeddrraaww--ccuurrrreenntt--lliinnee Refresh the current line. CCoommmmaannddss ffoorr MMaanniippuullaattiinngg tthhee HHiissttoorryy aacccceepptt--lliinnee ((NNeewwlliinnee,, RReettuurrnn)) - Accept the line regardless of where the cursor is. - If this line is non-empty, it may be added to the - history list for future recall with aadddd__hhiissttoorryy(()). - If the line is a modified history line, the history - line is restored to its original state. + Accept the line regardless of where the cursor is. If this line + is non-empty, it may be added to the history list for future + recall with aadddd__hhiissttoorryy(()). If the line is a modified history + line, the history line is restored to its original state. pprreevviioouuss--hhiissttoorryy ((CC--pp)) - Fetch the previous command from the history list, - moving back in the list. + Fetch the previous command from the history list, moving back in + the list. nneexxtt--hhiissttoorryy ((CC--nn)) - Fetch the next command from the history list, mov- - ing forward in the list. + Fetch the next command from the history list, moving forward in + the list. bbeeggiinnnniinngg--ooff--hhiissttoorryy ((MM--<<)) Move to the first line in the history. eenndd--ooff--hhiissttoorryy ((MM-->>)) - Move to the end of the input history, i.e., the - line currently being entered. + Move to the end of the input history, i.e., the line currently + being entered. rreevveerrssee--sseeaarrcchh--hhiissttoorryy ((CC--rr)) - Search backward starting at the current line and - moving `up' through the history as necessary. This - is an incremental search. + Search backward starting at the current line and moving `up' + through the history as necessary. This is an incremental + search. ffoorrwwaarrdd--sseeaarrcchh--hhiissttoorryy ((CC--ss)) - Search forward starting at the current line and - moving `down' through the history as necessary. - This is an incremental search. + Search forward starting at the current line and moving `down' + through the history as necessary. This is an incremental + search. nnoonn--iinnccrreemmeennttaall--rreevveerrssee--sseeaarrcchh--hhiissttoorryy ((MM--pp)) - Search backward through the history starting at the - current line using a non-incremental search for a - string supplied by the user. - nnoonn--iinnccrreemmeennttaall--ffoorrwwaarrdd--sseeaarrcchh--hhiissttoorryy ((MM--nn)) - Search forward through the history using a non- - incremental search for a string supplied by the + Search backward through the history starting at the current line + using a non-incremental search for a string supplied by the user. + nnoonn--iinnccrreemmeennttaall--ffoorrwwaarrdd--sseeaarrcchh--hhiissttoorryy ((MM--nn)) + Search forward through the history using a non-incremental + search for a string supplied by the user. hhiissttoorryy--sseeaarrcchh--ffoorrwwaarrdd - Search forward through the history for the string - of characters between the start of the current line - and the current cursor position (the _p_o_i_n_t). This - is a non-incremental search. + Search forward through the history for the string of characters + between the start of the current line and the current cursor + position (the _p_o_i_n_t). This is a non-incremental search. hhiissttoorryy--sseeaarrcchh--bbaacckkwwaarrdd - Search backward through the history for the string - of characters between the start of the current line - and the point. This is a non-incremental search. + Search backward through the history for the string of characters + between the start of the current line and the point. This is a + non-incremental search. yyaannkk--nntthh--aarrgg ((MM--CC--yy)) - Insert the first argument to the previous command - (usually the second word on the previous line) at - point. With an argument _n, insert the _nth word - from the previous command (the words in the previ- - ous command begin with word 0). A negative argu- - ment inserts the _nth word from the end of the pre- - vious command. + Insert the first argument to the previous command (usually the + second word on the previous line) at point. With an argument _n, + insert the _nth word from the previous command (the words in the + previous command begin with word 0). A negative argument + inserts the _nth word from the end of the previous command. Once + the argument _n is computed, the argument is extracted as if the + "!_n" history expansion had been specified. yyaannkk--llaasstt--aarrgg ((MM--..,, MM--__)) - Insert the last argument to the previous command - (the last word of the previous history entry). - With an argument, behave exactly like yyaannkk--nntthh--aarrgg. - Successive calls to yyaannkk--llaasstt--aarrgg move back through - the history list, inserting the last argument of - each line in turn. + Insert the last argument to the previous command (the last word + of the previous history entry). With an argument, behave + exactly like yyaannkk--nntthh--aarrgg. Successive calls to yyaannkk--llaasstt--aarrgg + move back through the history list, inserting the last argument + of each line in turn. The history expansion facilities are used + to extract the last argument, as if the "!$" history expansion + had been specified. CCoommmmaannddss ffoorr CChhaannggiinngg TTeexxtt ddeelleettee--cchhaarr ((CC--dd)) - Delete the character at point. If point is at the - beginning of the line, there are no characters in - the line, and the last character typed was not - bound to ddeelleettee--cchhaarr, then return EEOOFF. + Delete the character at point. If point is at the beginning of + the line, there are no characters in the line, and the last + character typed was not bound to ddeelleettee--cchhaarr, then return EEOOFF. bbaacckkwwaarrdd--ddeelleettee--cchhaarr ((RRuubboouutt)) - Delete the character behind the cursor. When given - a numeric argument, save the deleted text on the - kill ring. + Delete the character behind the cursor. When given a numeric + argument, save the deleted text on the kill ring. ffoorrwwaarrdd--bbaacckkwwaarrdd--ddeelleettee--cchhaarr - Delete the character under the cursor, unless the - cursor is at the end of the line, in which case the - character behind the cursor is deleted. + Delete the character under the cursor, unless the cursor is at + the end of the line, in which case the character behind the cur- + sor is deleted. qquuootteedd--iinnsseerrtt ((CC--qq,, CC--vv)) - Add the next character that you type to the line - verbatim. This is how to insert characters like - CC--qq, for example. + Add the next character that you type to the line verbatim. This + is how to insert characters like CC--qq, for example. ttaabb--iinnsseerrtt ((MM--TTAABB)) Insert a tab character. sseellff--iinnsseerrtt ((aa,, bb,, AA,, 11,, !!,, ......)) Insert the character typed. ttrraannssppoossee--cchhaarrss ((CC--tt)) - Drag the character before point forward over the - character at point, moving point forward as well. - If point is at the end of the line, then this - transposes the two characters before point. Nega- - tive arguments have no effect. + Drag the character before point forward over the character at + point, moving point forward as well. If point is at the end of + the line, then this transposes the two characters before point. + Negative arguments have no effect. ttrraannssppoossee--wwoorrddss ((MM--tt)) - Drag the word before point past the word after - point, moving point over that word as well. If - point is at the end of the line, this transposes - the last two words on the line. + Drag the word before point past the word after point, moving + point over that word as well. If point is at the end of the + line, this transposes the last two words on the line. uuppccaassee--wwoorrdd ((MM--uu)) - Uppercase the current (or following) word. With a - negative argument, uppercase the previous word, but - do not move point. + Uppercase the current (or following) word. With a negative + argument, uppercase the previous word, but do not move point. ddoowwnnccaassee--wwoorrdd ((MM--ll)) - Lowercase the current (or following) word. With a - negative argument, lowercase the previous word, but - do not move point. + Lowercase the current (or following) word. With a negative + argument, lowercase the previous word, but do not move point. ccaappiittaalliizzee--wwoorrdd ((MM--cc)) - Capitalize the current (or following) word. With a - negative argument, capitalize the previous word, - but do not move point. + Capitalize the current (or following) word. With a negative + argument, capitalize the previous word, but do not move point. oovveerrwwrriittee--mmooddee - Toggle overwrite mode. With an explicit positive - numeric argument, switches to overwrite mode. With - an explicit non-positive numeric argument, switches - to insert mode. This command affects only eemmaaccss - mode; vvii mode does overwrite differently. Each - call to _r_e_a_d_l_i_n_e_(_) starts in insert mode. In over- - write mode, characters bound to sseellff--iinnsseerrtt replace - the text at point rather than pushing the text to - the right. Characters bound to bbaacckk-- - wwaarrdd--ddeelleettee--cchhaarr replace the character before point - with a space. By default, this command is unbound. + Toggle overwrite mode. With an explicit positive numeric argu- + ment, switches to overwrite mode. With an explicit non-positive + numeric argument, switches to insert mode. This command affects + only eemmaaccss mode; vvii mode does overwrite differently. Each call + to _r_e_a_d_l_i_n_e_(_) starts in insert mode. In overwrite mode, charac- + ters bound to sseellff--iinnsseerrtt replace the text at point rather than + pushing the text to the right. Characters bound to bbaacckk-- + wwaarrdd--ddeelleettee--cchhaarr replace the character before point with a + space. By default, this command is unbound. KKiilllliinngg aanndd YYaannkkiinngg kkiillll--lliinnee ((CC--kk)) @@ -557,211 +513,186 @@ EEDDIITTIINNGG CCOOMMMMAANNDDSS bbaacckkwwaarrdd--kkiillll--lliinnee ((CC--xx RRuubboouutt)) Kill backward to the beginning of the line. uunniixx--lliinnee--ddiissccaarrdd ((CC--uu)) - Kill backward from point to the beginning of the - line. The killed text is saved on the kill-ring. + Kill backward from point to the beginning of the line. The + killed text is saved on the kill-ring. kkiillll--wwhhoollee--lliinnee - Kill all characters on the current line, no matter - where point is. + Kill all characters on the current line, no matter where point + is. kkiillll--wwoorrdd ((MM--dd)) - Kill from point the end of the current word, or if - between words, to the end of the next word. Word - boundaries are the same as those used by ffoorr-- - wwaarrdd--wwoorrdd. + Kill from point the end of the current word, or if between + words, to the end of the next word. Word boundaries are the + same as those used by ffoorrwwaarrdd--wwoorrdd. bbaacckkwwaarrdd--kkiillll--wwoorrdd ((MM--RRuubboouutt)) - Kill the word behind point. Word boundaries are - the same as those used by bbaacckkwwaarrdd--wwoorrdd. + Kill the word behind point. Word boundaries are the same as + those used by bbaacckkwwaarrdd--wwoorrdd. uunniixx--wwoorrdd--rruubboouutt ((CC--ww)) - Kill the word behind point, using white space as a - word boundary. The killed text is saved on the - kill-ring. + Kill the word behind point, using white space as a word bound- + ary. The killed text is saved on the kill-ring. + uunniixx--ffiilleennaammee--rruubboouutt + Kill the word behind point, using white space and the slash + character as the word boundaries. The killed text is saved on + the kill-ring. ddeelleettee--hhoorriizzoonnttaall--ssppaaccee ((MM--\\)) Delete all spaces and tabs around point. kkiillll--rreeggiioonn - Kill the text between the point and _m_a_r_k (saved - cursor position). This text is referred to as the - _r_e_g_i_o_n. + Kill the text between the point and _m_a_r_k (saved cursor posi- + tion). This text is referred to as the _r_e_g_i_o_n. ccooppyy--rreeggiioonn--aass--kkiillll Copy the text in the region to the kill buffer. ccooppyy--bbaacckkwwaarrdd--wwoorrdd - Copy the word before point to the kill buffer. The - word boundaries are the same as bbaacckkwwaarrdd--wwoorrdd. + Copy the word before point to the kill buffer. The word bound- + aries are the same as bbaacckkwwaarrdd--wwoorrdd. ccooppyy--ffoorrwwaarrdd--wwoorrdd - Copy the word following point to the kill buffer. - The word boundaries are the same as ffoorrwwaarrdd--wwoorrdd. + Copy the word following point to the kill buffer. The word + boundaries are the same as ffoorrwwaarrdd--wwoorrdd. yyaannkk ((CC--yy)) - Yank the top of the kill ring into the buffer at - point. + Yank the top of the kill ring into the buffer at point. yyaannkk--ppoopp ((MM--yy)) - Rotate the kill ring, and yank the new top. Only - works following yyaannkk or yyaannkk--ppoopp. + Rotate the kill ring, and yank the new top. Only works follow- + ing yyaannkk or yyaannkk--ppoopp. NNuummeerriicc AArrgguummeennttss ddiiggiitt--aarrgguummeenntt ((MM--00,, MM--11,, ......,, MM----)) - Add this digit to the argument already accumulat- - ing, or start a new argument. M-- starts a nega- - tive argument. + Add this digit to the argument already accumulating, or start a + new argument. M-- starts a negative argument. uunniivveerrssaall--aarrgguummeenntt - This is another way to specify an argument. If - this command is followed by one or more digits, - optionally with a leading minus sign, those digits - define the argument. If the command is followed by - digits, executing uunniivveerrssaall--aarrgguummeenntt again ends the - numeric argument, but is otherwise ignored. As a - special case, if this command is immediately fol- - lowed by a character that is neither a digit or - minus sign, the argument count for the next command - is multiplied by four. The argument count is ini- - tially one, so executing this function the first - time makes the argument count four, a second time - makes the argument count sixteen, and so on. + This is another way to specify an argument. If this command is + followed by one or more digits, optionally with a leading minus + sign, those digits define the argument. If the command is fol- + lowed by digits, executing uunniivveerrssaall--aarrgguummeenntt again ends the + numeric argument, but is otherwise ignored. As a special case, + if this command is immediately followed by a character that is + neither a digit or minus sign, the argument count for the next + command is multiplied by four. The argument count is initially + one, so executing this function the first time makes the argu- + ment count four, a second time makes the argument count sixteen, + and so on. CCoommpplleettiinngg ccoommpplleettee ((TTAABB)) - Attempt to perform completion on the text before - point. The actual completion performed is applica- - tion-specific. BBaasshh, for instance, attempts com- - pletion treating the text as a variable (if the - text begins with $$), username (if the text begins - with ~~), hostname (if the text begins with @@), or - command (including aliases and functions) in turn. - If none of these produces a match, filename comple- - tion is attempted. GGddbb, on the other hand, allows - completion of program functions and variables, and - only attempts filename completion under certain - circumstances. + Attempt to perform completion on the text before point. The + actual completion performed is application-specific. BBaasshh, for + instance, attempts completion treating the text as a variable + (if the text begins with $$), username (if the text begins with + ~~), hostname (if the text begins with @@), or command (including + aliases and functions) in turn. If none of these produces a + match, filename completion is attempted. GGddbb, on the other + hand, allows completion of program functions and variables, and + only attempts filename completion under certain circumstances. ppoossssiibbllee--ccoommpplleettiioonnss ((MM--??)) - List the possible completions of the text before - point. + List the possible completions of the text before point. iinnsseerrtt--ccoommpplleettiioonnss ((MM--**)) - Insert all completions of the text before point - that would have been generated by ppoossssiibbllee--ccoommppllee-- - ttiioonnss. + Insert all completions of the text before point that would have + been generated by ppoossssiibbllee--ccoommpplleettiioonnss. mmeennuu--ccoommpplleettee - Similar to ccoommpplleettee, but replaces the word to be - completed with a single match from the list of pos- - sible completions. Repeated execution of mmeennuu--ccoomm-- - pplleettee steps through the list of possible comple- - tions, inserting each match in turn. At the end of - the list of completions, the bell is rung (subject - to the setting of 00aanndd tthhee oorriiggiinnaall tteexxtt iiss - rreessttoorreedd.. AAnn aarrgguummeenntt ooff _n mmoovveess _n ppoossiittiioonnss ffoorr-- - wwaarrdd iinn tthhee lliisstt ooff mmaattcchheess;; aa nneeggaattiivvee aarrgguummeenntt - mmaayy bbee uusseedd ttoo mmoovvee bbaacckkwwaarrdd tthhrroouugghh tthhee lliisstt.. - TThhiiss ccoommmmaanndd iiss iinntteennddeedd ttoo bbee bboouunndd ttoo TTAABB,, bbuutt iiss - uunnbboouunndd bbyy ddeeffaauulltt.. + Similar to ccoommpplleettee, but replaces the word to be completed with + a single match from the list of possible completions. Repeated + execution of mmeennuu--ccoommpplleettee steps through the list of possible + completions, inserting each match in turn. At the end of the + list of completions, the bell is rung (subject to the setting of + bbeellll--ssttyyllee) and the original text is restored. An argument of _n + moves _n positions forward in the list of matches; a negative + argument may be used to move backward through the list. This + command is intended to be bound to TTAABB, but is unbound by + default. ddeelleettee--cchhaarr--oorr--lliisstt - Deletes the character under the cursor if not at - the beginning or end of the line (like ddeelleettee-- - cchhaarr). If at the end of the line, behaves identi- - cally to ppoossssiibbllee--ccoommpplleettiioonnss. + Deletes the character under the cursor if not at the beginning + or end of the line (like ddeelleettee--cchhaarr). If at the end of the + line, behaves identically to ppoossssiibbllee--ccoommpplleettiioonnss. KKeeyybbooaarrdd MMaaccrrooss ssttaarrtt--kkbbdd--mmaaccrroo ((CC--xx (()) - Begin saving the characters typed into the current - keyboard macro. + Begin saving the characters typed into the current keyboard + macro. eenndd--kkbbdd--mmaaccrroo ((CC--xx )))) - Stop saving the characters typed into the current - keyboard macro and store the definition. + Stop saving the characters typed into the current keyboard macro + and store the definition. ccaallll--llaasstt--kkbbdd--mmaaccrroo ((CC--xx ee)) - Re-execute the last keyboard macro defined, by mak- - ing the characters in the macro appear as if typed - at the keyboard. + Re-execute the last keyboard macro defined, by making the char- + acters in the macro appear as if typed at the keyboard. MMiisscceellllaanneeoouuss rree--rreeaadd--iinniitt--ffiillee ((CC--xx CC--rr)) - Read in the contents of the _i_n_p_u_t_r_c file, and - incorporate any bindings or variable assignments - found there. + Read in the contents of the _i_n_p_u_t_r_c file, and incorporate any + bindings or variable assignments found there. aabboorrtt ((CC--gg)) - Abort the current editing command and ring the ter- - minal's bell (subject to the setting of - bbeellll--ssttyyllee). + Abort the current editing command and ring the terminal's bell + (subject to the setting of bbeellll--ssttyyllee). ddoo--uuppppeerrccaassee--vveerrssiioonn ((MM--aa,, MM--bb,, MM--_x,, ......)) - If the metafied character _x is lowercase, run the - command that is bound to the corresponding upper- - case character. + If the metafied character _x is lowercase, run the command that + is bound to the corresponding uppercase character. pprreeffiixx--mmeettaa ((EESSCC)) - Metafy the next character typed. EESSCC ff is equiva- - lent to MMeettaa--ff. + Metafy the next character typed. EESSCC ff is equivalent to MMeettaa--ff. uunnddoo ((CC--__,, CC--xx CC--uu)) - Incremental undo, separately remembered for each - line. + Incremental undo, separately remembered for each line. rreevveerrtt--lliinnee ((MM--rr)) - Undo all changes made to this line. This is like - executing the uunnddoo command enough times to return - the line to its initial state. + Undo all changes made to this line. This is like executing the + uunnddoo command enough times to return the line to its initial + state. ttiillddee--eexxppaanndd ((MM--&&)) Perform tilde expansion on the current word. sseett--mmaarrkk ((CC--@@,, MM--<<ssppaaccee>>)) - Set the mark to the point. If a numeric argument - is supplied, the mark is set to that position. + Set the mark to the point. If a numeric argument is supplied, + the mark is set to that position. eexxcchhaannggee--ppooiinntt--aanndd--mmaarrkk ((CC--xx CC--xx)) - Swap the point with the mark. The current cursor - position is set to the saved position, and the old - cursor position is saved as the mark. + Swap the point with the mark. The current cursor position is + set to the saved position, and the old cursor position is saved + as the mark. cchhaarraacctteerr--sseeaarrcchh ((CC--]])) - A character is read and point is moved to the next - occurrence of that character. A negative count - searches for previous occurrences. + A character is read and point is moved to the next occurrence of + that character. A negative count searches for previous occur- + rences. cchhaarraacctteerr--sseeaarrcchh--bbaacckkwwaarrdd ((MM--CC--]])) - A character is read and point is moved to the pre- - vious occurrence of that character. A negative - count searches for subsequent occurrences. + A character is read and point is moved to the previous occur- + rence of that character. A negative count searches for subse- + quent occurrences. iinnsseerrtt--ccoommmmeenntt ((MM--##)) - Without a numeric argument, the value of the read- - line ccoommmmeenntt--bbeeggiinn variable is inserted at the - beginning of the current line. If a numeric argu- - ment is supplied, this command acts as a toggle: - if the characters at the beginning of the line do - not match the value of ccoommmmeenntt--bbeeggiinn, the value is - inserted, otherwise the characters in ccoommmmeenntt--bbeeggiinn - are deleted from the beginning of the line. In - either case, the line is accepted as if a newline - had been typed. The default value of ccoommmmeenntt--bbeeggiinn - makes the current line a shell comment. If a - numeric argument causes the comment character to be - removed, the line will be executed by the shell. + Without a numeric argument, the value of the readline ccoomm-- + mmeenntt--bbeeggiinn variable is inserted at the beginning of the current + line. If a numeric argument is supplied, this command acts as a + toggle: if the characters at the beginning of the line do not + match the value of ccoommmmeenntt--bbeeggiinn, the value is inserted, other- + wise the characters in ccoommmmeenntt--bbeeggiinn are deleted from the begin- + ning of the line. In either case, the line is accepted as if a + newline had been typed. The default value of ccoommmmeenntt--bbeeggiinn + makes the current line a shell comment. If a numeric argument + causes the comment character to be removed, the line will be + executed by the shell. dduummpp--ffuunnccttiioonnss - Print all of the functions and their key bindings - to the readline output stream. If a numeric - argument is supplied, the output is formatted in - such a way that it can be made part of an _i_n_p_u_t_r_c - file. + Print all of the functions and their key bindings to the read- + line output stream. If a numeric argument is supplied, the out- + put is formatted in such a way that it can be made part of an + _i_n_p_u_t_r_c file. dduummpp--vvaarriiaabblleess - Print all of the settable variables and their val- - ues to the readline output stream. If a numeric - argument is supplied, the output is formatted in - such a way that it can be made part of an _i_n_p_u_t_r_c - file. + Print all of the settable variables and their values to the + readline output stream. If a numeric argument is supplied, the + output is formatted in such a way that it can be made part of an + _i_n_p_u_t_r_c file. dduummpp--mmaaccrrooss - Print all of the readline key sequences bound to - macros and the strings they ouput. If a numeric - argument is supplied, the output is formatted in - such a way that it can be made part of an _i_n_p_u_t_r_c - file. + Print all of the readline key sequences bound to macros and the + strings they output. If a numeric argument is supplied, the + output is formatted in such a way that it can be made part of an + _i_n_p_u_t_r_c file. eemmaaccss--eeddiittiinngg--mmooddee ((CC--ee)) - When in vvii command mode, this causes a switch to - eemmaaccss editing mode. + When in vvii command mode, this causes a switch to eemmaaccss editing + mode. vvii--eeddiittiinngg--mmooddee ((MM--CC--jj)) - When in eemmaaccss editing mode, this causes a switch to - vvii editing mode. + When in eemmaaccss editing mode, this causes a switch to vvii editing + mode. DDEEFFAAUULLTT KKEEYY BBIINNDDIINNGGSS - The following is a list of the default emacs and vi bind- - ings. Characters with the eighth bit set are written as - M-<character>, and are referred to as _m_e_t_a_f_i_e_d characters. - The printable ASCII characters not mentioned in the list - of emacs standard bindings are bound to the sseellff--iinnsseerrtt - function, which just inserts the given character into the - input line. In vi insertion mode, all characters not - specifically mentioned are bound to sseellff--iinnsseerrtt. Charac- - ters assigned to signal generation by _s_t_t_y(1) or the ter- - minal driver, such as C-Z or C-C, retain that function. - Upper and lower case metafied characters are bound to the - same function in the emacs mode meta keymap. The remain- - ing characters are unbound, which causes readline to ring - the bell (subject to the setting of the bbeellll--ssttyyllee vari- - able). + The following is a list of the default emacs and vi bindings. Charac- + ters with the eighth bit set are written as M-<character>, and are + referred to as _m_e_t_a_f_i_e_d characters. The printable ASCII characters not + mentioned in the list of emacs standard bindings are bound to the + sseellff--iinnsseerrtt function, which just inserts the given character into the + input line. In vi insertion mode, all characters not specifically men- + tioned are bound to sseellff--iinnsseerrtt. Characters assigned to signal genera- + tion by _s_t_t_y(1) or the terminal driver, such as C-Z or C-C, retain that + function. Upper and lower case metafied characters are bound to the + same function in the emacs mode meta keymap. The remaining characters + are unbound, which causes readline to ring the bell (subject to the + setting of the bbeellll--ssttyyllee variable). EEmmaaccss MMooddee Emacs Standard bindings @@ -974,24 +905,22 @@ AAUUTTHHOORRSS chet@ins.CWRU.Edu BBUUGG RREEPPOORRTTSS - If you find a bug in rreeaaddlliinnee,, you should report it. But - first, you should make sure that it really is a bug, and - that it appears in the latest version of the rreeaaddlliinnee - library that you have. - - Once you have determined that a bug actually exists, mail - a bug report to _b_u_g_-_r_e_a_d_l_i_n_e@_g_n_u_._o_r_g. If you have a fix, - you are welcome to mail that as well! Suggestions and - `philosophical' bug reports may be mailed to _b_u_g_-_r_e_a_d_- - _l_i_n_e@_g_n_u_._o_r_g or posted to the Usenet newsgroup + If you find a bug in rreeaaddlliinnee,, you should report it. But first, you + should make sure that it really is a bug, and that it appears in the + latest version of the rreeaaddlliinnee library that you have. + + Once you have determined that a bug actually exists, mail a bug report + to _b_u_g_-_r_e_a_d_l_i_n_e@_g_n_u_._o_r_g. If you have a fix, you are welcome to mail + that as well! Suggestions and `philosophical' bug reports may be + mailed to _b_u_g_-_r_e_a_d_l_i_n_e@_g_n_u_._o_r_g or posted to the Usenet newsgroup ggnnuu..bbaasshh..bbuugg. - Comments and bug reports concerning this manual page - should be directed to _c_h_e_t_@_i_n_s_._C_W_R_U_._E_d_u. + Comments and bug reports concerning this manual page should be directed + to _c_h_e_t_@_i_n_s_._C_W_R_U_._E_d_u. BBUUGGSS It's too big and too slow. -GNU Readline 4.3 2002 January 22 READLINE(3) +GNU Readline 5.1-beta1 2005 Sep 13 READLINE(3) |