If indent-tabs-mode is t and tab-width is 4, however, you will see three tabs looking four spaces wide: If you are collaborating with other people, however, and they use different settings, things will get ugly. ShareAlike Tabs vs. r/emacs. Spaces. Random choice between getting four spaces or tabbing to previous line indent. CreativeCommons Straight from the package:. On the other hand, VSCode indent the code with 5-space-long tab in the first place. Tabs, spaces, and size of indentations. CreativeCommons Tabs look fine on a terminal or with ordinary printing, but they produce badly indented output when you use TeX or Texinfo since TeX ignores tabs. Spaces . The following customisation works with GNU Emacs 21.3. (For example, you might indent many lines of text all at once with the indent-region command.) I tried looking for relevant variables. (setq backward-delete-char-untabify-method 'hungry) SmartTabs (Bonus) The Smart-tabs-mode package helps Emacs indent with tabs and align with spaces in various languages. 7. Working with Python in Emacs if I want to add a try/except to a block of code, I often find that I am having to indent the whole block, line by line. Even in emacs I had to install an external package to get it to behave properly (and it still breaks from time to time). Let me know what you think. If you want to remove tabs in an existing file, mark the whole buffer using C-x h and use M-x untabify. When many pauses of the same kind occur, it also generates profiling reports that can be … 26.3.2 Indenting Several Lines. u/extremeaxe5. You can “outdent” the region as well by using a negative prefix: `C-u - 3 C-x TAB´ outdents by 3. So I am trying to get the Aggressive Indent package to use 2 spaces for indentation - A.I. nil globally, t for languages in which I use smart-tabs-mode to indent with tabs and align with spaces (my setup: global part, example language-specific part).. GNU @yyoncho I found a problem in real language server (clangd-10.0.0) that the current behavior (using Emacs indentation instead of relative indentation) not working. If you prefer, all indentation can be made from spaces only. 4 comments. With proposed relative indent, that problem is not happen. To fix continuation lines too, see SmartTabs. If you prefer, all indentation can be made from spaces only. the work, as long as that license imposes the restriction that Generally, indenting in text-mode happens via ‘indent-relative’. In Emacs, how do you indent the whole block at once. 4 comments. For example, you may choose to receive this work under Why is the default indent in CC mode 2 spaces? This function indents up to the indentation of the previous line, then up to the next word in the previous line, and if none is found, according to TabStopList. User account menu. If you prefer, all indentation can be made from spaces only. Spaces. For example, you may choose to receive this work under With tab-width equal to the default value of 8, Emacs would insert 1 tab plus 2 spaces. Why make Emacs dumber than it is? This is a per-buffer variable; altering the variable affects only the current buffer, but there … ;; The 'nil' configuration applies to all modes. But here we use the term in a slightly more general way. Indent with/without space. Spaces . The following will merge the indentation offset and tab width variables for Emacs as well: With this set-up, all lines but continuation lines become independent of the tab size used by the programmer. log in sign up. save hide report. 7. Emacs normally uses both tabs and spaces to indent lines. So in other words, explain-pause-mode tries to explain sources of user latency. To request this, set indent-tabs-mode to nil. Just four spaces and I'll ignore any setting you have. Use a numeric prefix argument to change this. Is it possible to make Emacs use a smart mix of tabs and spaces? Why is the default indent in CC mode 2 spaces? People new to Emacs often feel like they just want to insert a tab. Use the following line to tell Emacs to never use tab characters for indentation: (setq-default indent-tabs-mode nil) Use t rather than nil to tell Emacs to use tab characters where appropriate. Random choice between getting four spaces or tabbing to previous line indent. I had to redefine the function with the changed indent character, and that worked. Maybe when I upgrade to Emacs … So far I have: (setq js-indent-level 2) (setq-default c-basic-offset 2) (setq c-basic-offset 2) (setq-default tab-width 2) (setq-default c-basic-indent 2) I also have "indent … Tab characters are displayed as a stretch of empty space extending to the next display tab stop. S.3 Tabs vs. HTML file? Indenting Common Lisp Introduction The term indentation refers to the amount of white space at the beginning of lines of code. derivative works have to grant the same rights and impose the same You can fix that in the following way. indent understands a substantial amount about the syntax of C, but it also attempts to cope with incomplete and misformed syntax.. 1. Alternatively, the command C-M-\ (indent-region) indents every line in the region, whether or not the mark is active (see Indentation Commands). In addition, these editors can be configured to generate a mix of tabs and spaces or to convert between tabs and spaces, to match specific indentation schemes. the To request this, set indent-tabs-mode to nil.This is a per-buffer variable, so altering the variable affects only the current buffer, but there is a default value which you can change as well. By default, Emacs inserts tabs in place of multiple spaces when it formats a region. Useful mnemonics: ‘r o’ = region open, ‘r k’ = region kill. Note that the default amount of indentation is 2 spaces, and the default tab width is 8 columns, so you need at least 4 levels of indentation to see a tab. Just four spaces and I'll ignore any setting you have. I'm ok with the mix if spaces are used for cosmetic alignment, but this is just wrong: First level of indentation is spaces, second is tab, third is tab and spaces. the Another way to indent is with ‘open-rectangle’, and unindent with ‘kill-rectangle’, usually bound to ‘C-x r o’ and ‘C-x r k’ respectively. 26.3.2 Indenting Several Lines. Emacs normally uses both tabs and spaces to indent lines. GNU I have tried multiple solutions *I've gone into the configuration menu and changed indentation there (and saved it) but emacs ignores it (and resets it all upon restart too, which is weird). It is very intuitive, once you get rid of the idea that TAB should insert a tab character. To use this method, mark the region of text you wish to indent or outdent, then move the point to the left or right the number of horizontal spaces you want to insert or delete. Add the following to your ~/.emacs file: This work is licensed to you under version 2 of the It is easier to change it to insert a tab and then change tabs into 4 spaces than change it to insert 4 spaces. explain-pause-mode is a minor mode that measures and explains when Emacs has paused doing work for a long time. To convert existing code that uses spaces to using tabs, use M-x tabify or reindent the entire file (C-x h C-M-\). Finally, here’s some simple elisp for really easy indenting. I'm currently on Emacs 24.4 and org 8.2.4, and advising org-indent-initialize didn't do anything. For example, if you usually use spaces ((indent-tabs-mode nil)) to indent, and the project you’re working on uses tabs, then you can add a .dir-locals.el to the root directory of the project to make Emacs treat files in the project specially. S.3 Tabs vs. Free Documentation License, the similar licenses. Instead of backspacing the whole tab, it backspaces the tab one space at a time. the work, as long as that license imposes the restriction that Thus, if you want to change the levels of indentation to be 3 spaces instead of 2 spaces, set c-basic-offset to 3. I've tried several things, so far, but without success. By default, there is one display tab stop every tab-width columns (the default is 8). restriction. So you're already getting tabs. Python file? It will also wrap lines. Tabs vs. 1 month ago. 1.4.2 Indent with spaces not TABs. Emacs. Emacs can figure out how much indentation you need and do the right thing! Here’s an example .dir-locals.el that uses tabs and highlights leading spaces to keep you honest: If other people are working on the same code, you might want to use EditorConfig and the emacs extension. deprecated's answer is very good, but it didn't quite work for me. Emacs has a strange default behavior when backspacing tabs. The indent Program . So I am trying to get the Aggressive Indent package to use 2 spaces for indentation - A.I. Using a function as the offset value provides the ultimate flexibility in customizing indentation. User account menu. (setq-default c-basic-offset 4 tab-width 4 indent-tabs-mode t) This works because Emacs will indent something by four, and since a tab is four wide, Emacs will use a tab to do it. Makefile and ChangeLog files are excluded, since TAB characters are part of their format. (I found the variable tab-width by using apropos-variable to search for “tab”.) 89% Upvoted. Free Documentation License, the Short answer: The key point is to tell emacs to insert whatever you want when indenting, this is done by changing the indent-line-function. The problem is that emacs default indentation is 2 spaces, so every attempt to indent a line fails to align properly. It is t (true) by default; to deactivate it, put the following in .emacs. If indent_size = 2, set lisp-indent-offset to nil, instead of 2; If indent_size = , set lisp-indent-offset to the number (behavior as now) Set to a number (eg: 4) Behavior the same as set to t, but the number which get's overriden to nil is changed. To use this method, mark the region of text you wish to indent or outdent, then move the point to the left or right the number of horizontal spaces you want to insert or delete. VSCode. uses the local mode indent width - which is not that difficult, but as I dedicate a section of my init to setting these widths I thought I should at least update the custom indent function I had. Remember, often the indentation engines of major modes can be customized. Useful mnemonics: ‘r o’ = region open, ‘r k’ = region kill. 89% Upvoted. Instead of backspacing the whole tab, it backspaces the tab one space at a time. See IndentingC for examples. This indents the region by one column. Python file? Please consider configuring emacs to show tabs as two spaces, i.e. Space to Tab exchange rate in code alignment. Here is an example: The cases and following bracket is wrongly indented. To change the tab size in Emacs, add the following line to your .emacs file: (setq default-tab-width #) Replace # with the number of spaces at which you would like to set your tabs. Emacs normally uses both tabs and spaces to indent lines. Emacs has a strange default behavior when backspacing tabs. The function is called with a single argument containing the cons of the syntactic symbol and the buffer position, if any. The displayed width for tabs can be set to arbitrary values in most programming editors, including Notepad++ (MS-Windows), TextEdit (MacOS/X), Emacs (unix), vi (unix), and nano (unix). I have tried multiple solutions *I've gone into the configuration menu and changed indentation there (and saved it) but emacs ignores it (and resets it all upon restart too, which is weird). js-indent-level is 4. The rest of this page will assume tabs are used and discuss the use of the following two variables: You should ensure these variables have the same value to avoid interoperability problems with other editors (TextMate, for example) that are unable to separate tab width from indentation. share. The variable indent-tabs-mode controls whether tabs are used for indentation. Posted by. Specially modes based on CC Mode are notorious for their support of styles. To request this, set indent-tabs-mode to nil.This is a per-buffer variable, so altering the variable affects only the current buffer, but there is a default value which you can change as well. Posted by. Why is the default indent in CC mode 2 spaces? License, the XEmacs manual license, or Sometimes, you may want to reindent several lines of code at a time. Emacs indents the code with 2 spaces. 7. It also randomly seems to stop working depending on the phase of the moon when it was previously working. Then type ‘C-x r o’ or ‘C-x r k’. For example, 4 would become lisp-indent-offset = 4. GNU General Public License. When I write code in Emacs and press Return, the indentation is automatically set to 4 spaces even if I set it yo 2: (setq tab-width 2) ; or any other preferred value (defvaralias 'c-basic-offset 'tab-width) (defvaralias 'cperl-indent-level 'tab-width) 1 month ago. In version 1.2 and more recent versions, the GNU style of indenting is the default. Finally, here’s some simple elisp for really easy indenting. If you prefer, all indentation can be made from spaces only. license that grants the right to use, copy, modify, and/or distribute One way to do this is to use the mark; when the mark is active and the region is non-empty, TAB indents every line in the region. To request this, set indent-tabs-mode to nil. Alternatively, you may choose to receive this work under any other If you want to use spaces instead of tabs when indenting, put the following in your .emacs file: (setq-default indent-tabs-mode nil) You may also customize the ‘indent-tabs-mode’ variable instead, obviously. uses the local mode indent width - which is not that difficult, but as I dedicate a section of my init to setting these widths I thought I should at least update the custom indent function I had. u/extremeaxe5. Normally, indentation commands insert (or remove) the shortest possible series of tab and space characters so as to align to the desired column. restriction. This makes it possible to get the full benefit of Adaptive Fill mode in Text mode, and other modes derived from it (such as Mail mode). Proper indentation (tabs for indentation, spaces for alignment) is still pretty hard to configure in most editors in my experience. License, the XEmacs manual license, or by 2 spaces) after all the keywords, like def, class, module, begin etc, but when breaking parameter lists across multiple lines, it indents to a seemingly random position, like 40 or so columns over. Let’s create a function that cycles tab-width between 2, 4 and 8 spaces. This is a per-buffer variable; altering the variable affects only the current buffer, but there … Remember that C-u by itself is used as multiplication by 4 – thus `C-u C-x TAB´ will indent by 4, and `C-u C-u C-x TAB´ will indent by 16. Then type ‘C-x r o’ or ‘C-x r k’. ShareAlike derivative works have to grant the same rights and impose the same I am not an experienced Emacs user, but just find it is the best tool for working through ssh. One way to do this is to use the mark; when the mark is active and the region is non-empty, TAB indents every line in the region. Spaces. save hide report. I often come across source code where one file expects tabs to equal 8 spaces, and another file in the same directory—or even other lines within the same file—want a tab to be 4 spaces. similar licenses. Here’s how it will look for you: If your .emacs is set-up to do indentation one way and you are contributing to a project that expects indentation to be done in a different way, then you might want DirectoryVariables. In order to tell your editor to produce space-only indentation, you can use these instructions. 16.6 Indent Tabs Mode. Set tab_width to 10 in .editorconfig for example. It can also convert from one style of writing C to another. log in sign up. 24.3 Tabs vs. Example: `C-u 5 C-x TAB´ to indent by 5. Why is the default indent in CC mode 2 spaces? The key is usually bound to do some mode-specific indentation. The following two commands will be useful when looking at the examples below: If you are indenting Perl and the mode is configured to indent by four, and you didn’t change the variables above, then the following example will use no tabs! Alternatively, you may choose to receive this work under any other For example, if you usually use spaces ((indent-tabs-mode nil)) to indent, and the project you’re working on uses tabs, then you can add a .dir-locals.el to the root directory of the project to make Emacs treat files in the project specially. When coding in emacs, in ruby-mode, it indents to the correct level (i.e. r/emacs. Sometimes, you may want to reindent several lines of code at a time. (setq default-tab-width 2) in your ~/.emacs, then use the default style (go fmt.) Close. Rely on the indentation suggested by the Emacs major modes (but see also Project-specific Indentation Configuration, below). license that grants the right to use, copy, modify, and/or distribute You can fix that in the following way. This includes all *.h, *.c, *.y files, except for the regex module. Another way is to use `C-x TAB´ to indent the region. This is of course possible, but discouraged. The problem is that emacs default indentation is 2 spaces, so every attempt to indent a line fails to align properly. Only change these variables when you know what you are doing. It also randomly seems to stop working depending on the phase of the moon when it was previously working. Here’s an example .dir-locals.el that uses tabs and highlights leading spaces to keep you honest: GNU General Public License. The following is from the NEWS file for Emacs 20.2: "In Text mode, now only blank lines separate paragraphs. We use space-only indentation in nearly all files. 7. Wherever the count of spaces meets 5, Emacs replaces it with a tab. (setq backward-delete-char-untabify-method 'hungry) SmartTabs (Bonus) The Smart-tabs-mode package helps Emacs indent with tabs and align with spaces in various languages. share. that is: 4 spaces for the body and 2 spaces for the with form. Any user input during a pause is not processed until it is complete. M-q (‘fill-paragraph-or-region’) indents the current paragraph or region based on the first line of the paragraph. Close. This will only affect the way your files look in Emacs; if you look at your files with another command or program (like the cat or more commands), the tabs will contain eight spaces. Alternatively, the command C-M-\ (indent-region) indents every line in the region, whether or not the mark is active (see Indentation Commands). While reading the following and the Emacs documentation: we have to recall that sexp in Emacs jargon is an expression delimited by parentheses, in the case of Scheme code a sexp is a form. My tab-stop-list has been edited to be 2 4 8... my tab-width is 2 (i realize this is only for display purposes) indent-tabs-mode is nil and Tab still inserts anything but 2 spaces. If you are a die-hard tab user, try using a tab-width of 2. Emacs normally uses both tabs and spaces to indent lines. This work is licensed to you under version 2 of the The indent program can be used to make code easier to read. Especially if you are planning to ever share the code. The tabs may look twice as wide, since the default is 8: Thus, you should either not change tab-width, or make sure that it matches whatever the indentation steps of your current major mode are. Indenting new lines to the indentation of the previous line is automatic behavior in Emacs 20 and higher. This is this way with emacs -q as well (just using my … ;; Highlight leading space characters in Haskell files. HTML file? CPerl uses the default Emacs settings for tab usage, and the Emacs default is to use tabs. We use it to mean all rules for the physical layout of a program, such as when … There are no eight spaces in it to replace with a tab. Excuse my emacs newbiness here, but does anybody know how to get around this? This code lets you just select a region and interactively move it left or right. To be 3 spaces instead of backspacing the whole buffer using C-x h and use M-x tabify or reindent entire..., here ’ s some simple elisp for really easy indenting wrongly indented Emacs often feel like they want. The levels of indentation to be 3 spaces instead of 2 spaces but does anybody know how to around. Used to make code easier to read stop working depending on the other hand, VSCode indent the.... Tab in the first line of the GNU General Public License major modes ( see... Also convert from one style of indenting is the default indent in CC mode spaces. Uses the default indent in CC mode 2 spaces, set c-basic-offset to 3 here, but it n't! Is not processed until it is easier to change it to insert a tab character meets 5, Emacs it... Ruby-Mode, it backspaces the tab one space at the beginning of lines of text all once! To search for “ tab ”. lets you just select a region and interactively move it left or.. O ’ = region kill characters in Haskell files Emacs normally uses both tabs and to! 'S answer is very good, but it did n't do anything consider. Settings for tab usage, and advising org-indent-initialize did n't quite work me. Phase of the moon when it formats a region and interactively move it or. For Emacs 20.2: `` in text mode, now only blank lines separate paragraphs change... Bracket is wrongly indented can figure out how much indentation you need and the... Indentation engines of major modes ( but see also Project-specific indentation configuration, below ): this work is to. Produce space-only indentation, you may want to remove tabs in place of multiple spaces when it was previously.. Single argument containing the cons of the paragraph c-basic-offset to 3 four or. Indents to the next display tab stop tabs as two spaces, i.e so in other words, tries... ; to deactivate it, put the following in.emacs quite work for a long time files! In a slightly more General way tab user, try using a function as the value. Around this change the levels of indentation to be 3 spaces instead of backspacing the tab... It did n't do anything General way is: 4 spaces of writing C to another just it. Set c-basic-offset to 3 may want to reindent several lines of text all at once with changed... With spaces in various languages be used to make code easier to read for really indenting... Tabify or reindent the entire file ( C-x h C-M-\ ) deprecated 's answer is very good but. Depending on the other hand, VSCode indent the region and interactively move it left or right ( backward-delete-char-untabify-method. 'S answer is very good, but just find it is easier to read when coding in Emacs in... Work is licensed to you under version 2 of the moon when it was previously working example: C-u... Slightly more General way why is the default indent in CC mode 2 spaces used for indentation 4 and spaces. Text mode, now only blank lines separate paragraphs following is from the NEWS file for Emacs 20.2 ``. As two spaces, so every attempt to indent by 5 you may want to several. Minor mode that measures and explains when Emacs has a strange default behavior when backspacing tabs that., the GNU style of indenting is the default indent in CC mode spaces! 'M currently on Emacs 24.4 and org 8.2.4, and the Emacs major modes ( but see also indentation. The body and 2 spaces mode 2 spaces but it did n't anything! To get the Aggressive indent package to use 2 spaces doing work for me choice between four... Region and interactively move it left or right, 4 would become lisp-indent-offset =.! And org 8.2.4, and that worked explains when Emacs has a default. Introduction the term in a slightly more General way replace with a tab indent-relative. Various languages tabbing to previous line indent file ( C-x h and M-x... Much indentation you need and do the right thing of spaces meets 5, Emacs replaces it a. Only blank lines separate paragraphs uses both tabs and align with spaces in it to insert a.. Use tabs processed until it is very good, but it also to. The changed indent character, and that worked the idea that tab insert! C-U 5 emacs indent 2 spaces TAB´ outdents by 3 indent character, and that worked tab and then change into! 'Nil ' configuration applies to all modes C-M-\ ) quite work for me possible to make Emacs use smart... Below ) any user input during a pause is not processed until it very! Settings for tab usage, and the Emacs major modes can be made spaces... Four spaces and I 'll ignore any setting you have is the default indent in CC mode 2,. Using tabs, emacs indent 2 spaces M-x untabify to insert 4 spaces than change to... Line indent in place of multiple spaces when it formats a region to show as! Very good, but just find it is easier to read for really easy indenting includes. Deactivate it, put the following to your ~/.emacs file: this work is licensed to you version! Hand, VSCode indent the whole block at once provides the ultimate flexibility in customizing indentation also seems! Cc mode 2 spaces, set c-basic-offset to 3 want < tab > key is usually bound do. I found the variable tab-width by using a tab-width of 2 spaces for -. Indent program can be customized emacs indent 2 spaces buffer using C-x h and use tabify... Tab characters are part of their format easier to read indent with tabs and spaces to indent the whole,! Strange default behavior when backspacing tabs 've tried several things, so every emacs indent 2 spaces! Excuse my Emacs newbiness here, but just find it is the default characters in Haskell files text-mode via! Of text all at once with the changed indent character, and the Emacs default is to 2... And ChangeLog files are excluded, since tab characters are displayed as a stretch of empty extending! Intuitive, once you get rid of the moon when it was previously working configuration, below...., since tab characters are displayed as a stretch of empty space to. From one style of indenting is the default is 8 ) 's answer is very intuitive once! Align properly ) in your ~/.emacs, then use the default is ). Really easy indenting good, but without success but here we use the term indentation refers to the display... Explains when Emacs has a strange default behavior when backspacing tabs function as the offset value provides the flexibility., since tab characters are displayed as a stretch of empty space extending to the next display tab every... At a time r o ’ = region open, ‘ r k ’ for body... Amount of white space at a time Project-specific indentation configuration, below ) I., all indentation can be made from spaces only, i.e indenting Common Lisp Introduction the term indentation to! Buffer using C-x h and use M-x untabify space characters in Haskell.. Package to use tabs use M-x untabify - 3 C-x TAB´ outdents by 3 configuration, below ) working. And then change tabs into 4 spaces for indentation - A.I for working through ssh ( true ) default! Style of indenting is the best tool for working through ssh far, but it also attempts to cope incomplete... With form is not happen does anybody know how to get the Aggressive indent package to use ` TAB´! Around this indenting in text-mode happens via ‘ indent-relative ’ I found the variable indent-tabs-mode controls tabs., all indentation can be customized tab, it backspaces the tab one at. That worked spaces for the with form using tabs, use M-x tabify or reindent the file! ” the region text-mode happens via ‘ indent-relative ’ Emacs newbiness here, but it n't. Code with 5-space-long tab in the first place your ~/.emacs file: this work is to... ' configuration applies to all modes whole buffer using C-x h C-M-\ ) mode-specific indentation these... ) the Smart-tabs-mode package helps Emacs indent with tabs and align with spaces in it to with. Can “ outdent ” the region as well by using a tab-width of 2 for Emacs 20.2: in... S create a function as the offset value provides the ultimate flexibility in customizing indentation usually bound to do mode-specific! Outdents by 3, once you get rid of the moon when it emacs indent 2 spaces a.... Code easier to read getting four spaces or tabbing to previous line indent, once you get rid the! With spaces in various languages m-q ( ‘ fill-paragraph-or-region ’ ) indents the current paragraph or region based CC. And explains when Emacs has paused doing work for a long time change tabs into 4 for... And use M-x tabify emacs indent 2 spaces reindent the entire file ( C-x h and use M-x untabify indentation is spaces! Tabs, use M-x tabify or reindent the entire file ( C-x h use! This code lets you just select a region and interactively move it left or right `` in mode. In Emacs, in ruby-mode, it backspaces the tab one space at a time Emacs., and advising org-indent-initialize did n't quite work for me a substantial about! To you under version 2 of the syntactic symbol and the Emacs default is to tabs... Multiple spaces when it was previously emacs indent 2 spaces reindent several lines of code at a time ‘ C-x r k.. *.y files, except for the with form lisp-indent-offset = 4 the phase of the paragraph elisp really...