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diff --git a/runtime/doc/version4.txt b/runtime/doc/version4.txt new file mode 100644 index 0000000..6758b7a --- /dev/null +++ b/runtime/doc/version4.txt @@ -0,0 +1,355 @@ +*version4.txt* For Vim version 8.1. Last change: 2006 Apr 24 + + + VIM REFERENCE MANUAL by Bram Moolenaar + + +This document lists the incompatible differences between Vim 3.0 and Vim 4.0. +Although 4.0 is mentioned here, this is also for version 4.1, 4.2, etc.. + +This file is important for everybody upgrading from Vim 3.0. Read it +carefully to avoid unexpected problems. + +'backup' option default changed |backup-changed| +Extension for backup file changed |backup-extension| +Structure of swap file changed |swapfile-changed| +"-w scriptout" argument changed |scriptout-changed| +Backspace and Delete keys |backspace-delete| +Escape for | changed |escape-bar| +Key codes changed |key-codes-changed| +Terminal options changed |termcap-changed| +'errorformat' option changed |errorformat-changed| +'graphic' option gone |graphic-option-gone| +'yankendofline' option gone |ye-option-gone| +'icon' and 'title' default value changed |icon-changed| +'highlight' option changed |highlight-changed| +'tildeop' and 'weirdinvert' short names changed |short-name-changed| +Use of "v", "V" and "CTRL-V" in Visual mode |use-visual-cmds| +CTRL-B in Insert mode removed |toggle-revins| + + +'backup' option default changed *backup-changed* +------------------------------- + +The default value for 'backup' used to be on. This resulted in a backup file +being made when the original file was overwritten. + +Now the default for 'backup' is off. As soon as the writing of the file has +successfully finished, the backup file is deleted. If you want to keep the +backup file, set 'backup' on in your vimrc. The reason for this change is +that many people complained that leaving a backup file behind is not +Vi-compatible. |'backup'| + + +Extension for backup file changed *backup-extension* +--------------------------------- + +The extension for the backup file used to be ".bak". Since other programs +also use this extension and some users make copies with this extension, it was +changed to the less obvious "~". Another advantage is that this takes less +space, which is useful when working on a system with short file names. For +example, on MS-DOS the backup files for "longfile.c" and "longfile.h" would +both become "longfile.bak"; now they will be "longfile.c~" and "longfile.h~". + +If you prefer to use ".bak", you can set the 'backupext' option: > + :set bex=.bak + + +Structure of swap file changed *swapfile-changed* +------------------------------ + +The contents of the swap file were extended with several parameters. Vim +stores the user name and other information about the edited file to make +recovery more easy and to be able to know where the swap file comes from. The +first part of the swap file can now be understood on a machine with a +different byte order or sizeof(int). When you try to recover a file on such a +machine, you will get an error message that this is not possible. + +Because of this change, swap files cannot be exchanged between 3.0 and 4.0. +If you have a swap file from a crashed session with 3.0, use Vim 3.0 to +recover the file---don't use 4.0. |swap-file| + + +"-w scriptout" argument changed *scriptout-changed* +------------------------------- + +"vim -w scriptout" used to append to the scriptout file. Since this was +illogical, it now creates a new file. An existing file is not overwritten +(to avoid destroying an existing file for those who rely on the appending). +[This was removed again later] |-w| + + +Backspace and Delete keys *backspace-delete* +------------------------- + +In 3.0 both the delete key and the backspace key worked as a backspace in +insert mode; they deleted the character to the left of the cursor. In 4.0 the +delete key has a new function: it deletes the character under the cursor, just +like it does on the command-line. If the cursor is after the end of the line +and 'bs' is set, two lines are joined. |<Del>| |i_<Del>| + +In 3.0 the backspace key was always defined as CTRL-H and delete as CTRL-?. +In 4.0 the code for the backspace and delete key is obtained from termcap or +termlib, and adjusted for the "stty erase" value on Unix. This helps people +who define the erase character according to the keyboard they are working on. + |<BS>| |i_<BS>| + +If you prefer backspace and delete in Insert mode to have the old behavior, +put this line in your vimrc: + + inoremap ^? ^H + +And you may also want to add these, to fix the values for <BS> and <Del>: + + set t_kb=^H + set t_kD=^? + +(Enter ^H with CTRL-V CTRL-H and ^? with CTRL-V CTRL-? or <Del>.) + +If the value for t_kb is correct, but the t_kD value is not, use the ":fixdel" +command. It will set t_kD according to the value of t_kb. This is useful if +you are using several different terminals. |:fixdel| + +When ^H is not recognized as <BS> or <Del>, it is used like a backspace. + + +Escape for | changed *escape-bar* +-------------------- + +When the 'b' flag is present in 'cpoptions', the backslash cannot be used to +escape '|' in mapping and abbreviate commands, only CTRL-V can. This is +Vi-compatible. If you work in Vi-compatible mode and had used "\|" to include +a bar in a mapping, this needs to be replaced by "^V|". See |:bar|. + + +Key codes changed *key-codes-changed* +----------------- + +The internal representation of key codes has changed dramatically. In 3.0 a +one-byte code was used to represent a key. This caused problems with +different characters sets that also used these codes. In 4.0 a three-byte +code is used that cannot be confused with a character. |key-notation| + +If you have used the single-byte key codes in your vimrc for mappings, you +will have to replace them with the 4.0 codes. Instead of using the three-byte +code directly, you should use the symbolic representation for this in <>. See +the table below. The table also lists the old name, as it was used in the 3.0 +documentation. + +The key names in <> can be used in mappings directly. This makes it possible +to copy/paste examples or type them literally. The <> notation has been +introduced for this |<>|. The 'B' and '<' flags must not be present in +'cpoptions' to enable this to work |'cpoptions'|. + +old name new name old code old MS-DOS code ~ + hex dec hex dec ~ +<ESC> <Esc> +<TAB> <Tab> +<LF> <NL> <NewLine> <LineFeed> +<SPACE> <Space> +<NUL> <Nul> +<BELL> <Bell> +<BS> <BS> <BackSpace> +<INSERT> <Insert> +<DEL> <Del> <Delete> +<HOME> <Home> +<END> <End> +<PAGE_UP> <PageUp> +<PAGE_DOWN> <PageDown> + +<C_UP> <Up> 0x80 128 0xb0 176 +<C_DOWN> <Down> 0x81 129 0xb1 177 +<C_LEFT> <Left> 0x82 130 0xb2 178 +<C_RIGHT> <Right> 0x83 131 0xb3 179 +<SC_UP> <S-Up> 0x84 132 0xb4 180 +<SC_DOWN> <S-Down> 0x85 133 0xb5 181 +<SC_LEFT> <S-Left> 0x86 134 0xb6 182 +<SC_RIGHT> <S-Right> 0x87 135 0xb7 183 + +<F1> <F1> 0x88 136 0xb8 184 +<F2> <F2> 0x89 137 0xb9 185 +<F3> <F3> 0x8a 138 0xba 186 +<F4> <F4> 0x8b 139 0xbb 187 +<F5> <F5> 0x8c 140 0xbc 188 +<F6> <F6> 0x8d 141 0xbd 189 +<F7> <F7> 0x8e 142 0xbe 190 +<F8> <F8> 0x8f 143 0xbf 191 +<F9> <F9> 0x90 144 0xc0 192 +<F10> <F10> 0x91 145 0xc1 193 + +<SF1> <S-F1> 0x92 146 0xc2 194 +<SF2> <S-F2> 0x93 147 0xc3 195 +<SF3> <S-F3> 0x94 148 0xc4 196 +<SF4> <S-F4> 0x95 149 0xc5 197 +<SF5> <S-F5> 0x96 150 0xc6 198 +<SF6> <S-F6> 0x97 151 0xc7 199 +<SF7> <S-F7> 0x98 152 0xc8 200 +<SF8> <S-F8> 0x99 153 0xc9 201 +<SF9> <S-F9> 0x9a 154 0xca 202 +<SF10> <S-F10> 0x9b 155 0xcb 203 + +<HELP> <Help> 0x9c 156 0xcc 204 +<UNDO> <Undo> 0x9d 157 0xcd 205 + + (not used) 0x9e 158 0xce 206 + (not used) 0x9f 159 0xcf 207 + + +Terminal options changed *termcap-changed* +------------------------ + +The names of the terminal options have been changed to match the termcap names +of these options. All terminal options now have the name t_xx, where xx is +the termcap name. Normally these options are not used, unless you have a +termcap entry that is wrong or incomplete, or you have set the highlight +options to a different value. |terminal-options| + +Note that for some keys there is no termcap name. Use the <> type of name +instead, which is a good idea anyway. + +Note that "t_ti" has become "t_mr" (invert/reverse output) and "t_ts" has +become "t_ti" (init terminal mode). Be careful when you use "t_ti"! + +old name new name meaning ~ +t_cdl t_DL delete number of lines *t_cdl* +t_ci t_vi cursor invisible *t_ci* +t_cil t_AL insert number of lines *t_cil* +t_cm t_cm move cursor +t_cri t_RI cursor number of chars right *t_cri* +t_cv t_ve cursor visible *t_cv* +t_cvv t_vs cursor very visible *t_cvv* +t_dl t_dl delete line +t_cs t_cs scroll region +t_ed t_cl clear display *t_ed* +t_el t_ce clear line *t_el* +t_il t_al insert line *t_il* + t_da display may be retained above the screen + t_db display may be retained below the screen +t_ke t_ke put terminal out of keypad transmit mode +t_ks t_ks put terminal in keypad transmit mode +t_ms t_ms save to move cursor in highlight mode +t_se t_se normal mode (undo t_so) +t_so t_so shift out (standout) mode +t_ti t_mr reverse highlight +t_tb t_md bold mode *t_tb* +t_tp t_me highlight end *t_tp* +t_sr t_sr scroll reverse +t_te t_te out of termcap mode +t_ts t_ti into termcap mode *t_ts_old* +t_vb t_vb visual bell +t_csc t_CS cursor is relative to scroll region *t_csc* + +t_ku t_ku <Up> arrow up +t_kd t_kd <Down> arrow down +t_kr t_kr <Right> arrow right +t_kl t_kl <Left> arrow left +t_sku <S-Up> shifted arrow up *t_sku* +t_skd <S-Down> shifted arrow down *t_skd* +t_skr t_%i <S-Right> shifted arrow right *t_skr* +t_skl t_#4 <S-Left> shifted arrow left *t_skl* +t_f1 t_k1 <F1> function key 1 *t_f1* +t_f2 t_k2 <F2> function key 2 *t_f2* +t_f3 t_k3 <F3> function key 3 *t_f3* +t_f4 t_k4 <F4> function key 4 *t_f4* +t_f5 t_k5 <F5> function key 5 *t_f5* +t_f6 t_k6 <F6> function key 6 *t_f6* +t_f7 t_k7 <F7> function key 7 *t_f7* +t_f8 t_k8 <F8> function key 8 *t_f8* +t_f9 t_k9 <F9> function key 9 *t_f9* +t_f10 t_k; <F10> function key 10 *t_f10* +t_sf1 <S-F1> shifted function key 1 *t_sf1* +t_sf2 <S-F2> shifted function key 2 *t_sf2* +t_sf3 <S-F3> shifted function key 3 *t_sf3* +t_sf4 <S-F4> shifted function key 4 *t_sf4* +t_sf5 <S-F5> shifted function key 5 *t_sf5* +t_sf6 <S-F6> shifted function key 6 *t_sf6* +t_sf7 <S-F7> shifted function key 7 *t_sf7* +t_sf8 <S-F8> shifted function key 8 *t_sf8* +t_sf9 <S-F9> shifted function key 9 *t_sf9* +t_sf10 <S-F10> shifted function key 10 *t_sf10* +t_help t_%1 <Help> help key *t_help* +t_undo t_&8 <Undo> undo key *t_undo* + + +'errorformat' option changed *errorformat-changed* +---------------------------- + +'errorformat' can now contain several formats, separated by commas. The first +format that matches is used. The default values have been adjusted to catch +the most common formats. |errorformat| + +If you have a format that contains a comma, it needs to be preceded with a +backslash. Type two backslashes, because the ":set" command will eat one. + + +'graphic' option gone *graphic-option-gone* +--------------------- + +The 'graphic' option was used to make the characters between <~> and 0xa0 +display directly on the screen. Now the 'isprint' option takes care of this +with many more possibilities. The default setting is the same; you only need +to look into this if you previously set the 'graphic' option in your vimrc. + |'isprint'| + + +'yankendofline' option gone *ye-option-gone* +--------------------------- + +The 'yankendofline' option has been removed. Instead you can just use + :map Y y$ + + +'icon' and 'title' default value changed *icon-changed* +---------------------------------------- + +The 'title' option is now only set by default if the original title can be +restored. Avoids "Thanks for flying Vim" titles. If you want them anyway, +put ":set title" in your vimrc. |'title'| + +The default for 'icon' now depends on the possibility of restoring the +original value, just like 'title'. If you don't like your icon titles to be +changed, add this line to your vimrc: |'icon'| + :set noicon + + +'highlight' option changed *highlight-changed* +-------------------------- + +The 'i' flag now means italic highlighting, instead of invert. The 'r' flag +is used for reverse highlighting, which is what 'i' used to be. Normally you +won't see the difference, because italic mode is not supported on most +terminals and reverse mode is used as a fallback. |'highlight'| + +When an occasion is not present in 'highlight', use the mode from the default +value for 'highlight', instead of reverse mode. + + +'tildeop' and 'weirdinvert' short names changed *short-name-changed* +----------------------------------------------- + +Renamed 'to' (abbreviation for 'tildeop') to 'top'. |'tildeop'| +Renamed 'wi' (abbreviation for 'weirdinvert') to 'wiv'. |'weirdinvert'| + +This was done because Vi uses 'wi' as the short name for 'window' and 'to' as +the short name for 'timeout'. This means that if you try setting these +options, you won't get an error message, but the effect will be different. + + +Use of "v", "V" and "CTRL-V" in Visual mode *use-visual-cmds* +------------------------------------------- + +In Visual mode, "v", "V", and "CTRL-V" used to end Visual mode. Now this +happens only if the Visual mode was in the corresponding type. Otherwise the +type of Visual mode is changed. Now only ESC can be used in all circumstances +to end Visual mode without doing anything. |v_V| + + +CTRL-B in Insert mode removed *toggle-revins* +----------------------------- + +CTRL-B in Insert mode used to toggle the 'revins' option. If you don't know +this and accidentally hit CTRL-B, it is very difficult to find out how to undo +it. Since hardly anybody uses this feature, it is disabled by default. If +you want to use it, define RIGHTLEFT in feature.h before compiling. |'revins'| + + vim:tw=78:ts=8:noet:ft=help:norl: |