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Code Editor : indent.txt
*indent.txt* For Vim version 8.0. Last change: 2018 Apr 04 VIM REFERENCE MANUAL by Bram Moolenaar This file is about indenting C programs and other files. 1. Indenting C style programs |C-indenting| 2. Indenting by expression |indent-expression| ============================================================================== 1. Indenting C style programs *C-indenting* The basics for C style indenting are explained in section |30.2| of the user manual. Vim has options for automatically indenting C style program files. Many programming languages including Java and C++ follow very closely the formatting conventions established with C. These options affect only the indent and do not perform other formatting. There are additional options that affect other kinds of formatting as well as indenting, see |format-comments|, |fo-table|, |gq| and |formatting| for the main ones. Note that this will not work when the |+smartindent| or |+cindent| features have been disabled at compile time. There are in fact four main methods available for indentation, each one overrides the previous if it is enabled, or non-empty for 'indentexpr': 'autoindent' uses the indent from the previous line. 'smartindent' is like 'autoindent' but also recognizes some C syntax to increase/reduce the indent where appropriate. 'cindent' Works more cleverly than the other two and is configurable to different indenting styles. 'indentexpr' The most flexible of all: Evaluates an expression to compute the indent of a line. When non-empty this method overrides the other ones. See |indent-expression|. The rest of this section describes the 'cindent' option. Note that 'cindent' indenting does not work for every code scenario. Vim is not a C compiler: it does not recognize all syntax. One requirement is that toplevel functions have a '{' in the first column. Otherwise they are easily confused with declarations. These four options control C program indenting: 'cindent' Enables Vim to perform C program indenting automatically. 'cinkeys' Specifies which keys trigger reindenting in insert mode. 'cinoptions' Sets your preferred indent style. 'cinwords' Defines keywords that start an extra indent in the next line. If 'lisp' is not on and 'equalprg' is empty, the "=" operator indents using Vim's built-in algorithm rather than calling an external program. See |autocommand| for how to set the 'cindent' option automatically for C code files and reset it for others. *cinkeys-format* *indentkeys-format* The 'cinkeys' option is a string that controls Vim's indenting in response to typing certain characters or commands in certain contexts. Note that this not only triggers C-indenting. When 'indentexpr' is not empty 'indentkeys' is used instead. The format of 'cinkeys' and 'indentkeys' is equal. The default is "0{,0},0),:,0#,!^F,o,O,e" which specifies that indenting occurs as follows: "0{" if you type '{' as the first character in a line "0}" if you type '}' as the first character in a line "0)" if you type ')' as the first character in a line ":" if you type ':' after a label or case statement "0#" if you type '#' as the first character in a line "!^F" if you type CTRL-F (which is not inserted) "o" if you type a <CR> anywhere or use the "o" command (not in insert mode!) "O" if you use the "O" command (not in insert mode!) "e" if you type the second 'e' for an "else" at the start of a line Characters that can precede each key: *i_CTRL-F* ! When a '!' precedes the key, Vim will not insert the key but will instead reindent the current line. This allows you to define a command key for reindenting the current line. CTRL-F is the default key for this. Be careful if you define CTRL-I for this because CTRL-I is the ASCII code for <Tab>. * When a '*' precedes the key, Vim will reindent the line before inserting the key. If 'cinkeys' contains "*<Return>", Vim reindents the current line before opening a new line. 0 When a zero precedes the key (but appears after '!' or '*') Vim will reindent the line only if the key is the first character you type in the line. When used before "=" Vim will only reindent the line if there is only white space before the word. When neither '!' nor '*' precedes the key, Vim reindents the line after you type the key. So ';' sets the indentation of a line which includes the ';'. Special key names: <> Angle brackets mean spelled-out names of keys. For example: "<Up>", "<Ins>" (see |key-notation|). ^ Letters preceded by a caret (^) are control characters. For example: "^F" is CTRL-F. o Reindent a line when you use the "o" command or when Vim opens a new line below the current one (e.g., when you type <Enter> in insert mode). O Reindent a line when you use the "O" command. e Reindent a line that starts with "else" when you type the second 'e'. : Reindent a line when a ':' is typed which is after a label or case statement. Don't reindent for a ":" in "class::method" for C++. To Reindent for any ":", use "<:>". =word Reindent when typing the last character of "word". "word" may actually be part of another word. Thus "=end" would cause reindenting when typing the "d" in "endif" or "endwhile". But not when typing "bend". Also reindent when completion produces a word that starts with "word". "0=word" reindents when there is only white space before the word. =~word Like =word, but ignore case. If you really want to reindent when you type 'o', 'O', 'e', '0', '<', '>', '*', ':' or '!', use "<o>", "<O>", "<e>", "<0>", "<<>", "<>>", "<*>", "<:>" or "<!>", respectively, for those keys. For an emacs-style indent mode where lines aren't indented every time you press <Enter> but only if you press <Tab>, I suggest: :set cinkeys=0{,0},:,0#,!<Tab>,!^F You might also want to switch off 'autoindent' then. Note: If you change the current line's indentation manually, Vim ignores the cindent settings for that line. This prevents vim from reindenting after you have changed the indent by typing <BS>, <Tab>, or <Space> in the indent or used CTRL-T or CTRL-D. *cinoptions-values* The 'cinoptions' option sets how Vim performs indentation. The value after the option character can be one of these (N is any number): N indent N spaces -N indent N spaces to the left Ns N times 'shiftwidth' spaces -Ns N times 'shiftwidth' spaces to the left In the list below, "N" represents a number of your choice (the number can be negative). When there is an 's' after the number, Vim multiplies the number by 'shiftwidth': "1s" is 'shiftwidth', "2s" is two times 'shiftwidth', etc. You can use a decimal point, too: "-0.5s" is minus half a 'shiftwidth'. The examples below assume a 'shiftwidth' of 4. *cino->* >N Amount added for "normal" indent. Used after a line that should increase the indent (lines starting with "if", an opening brace, etc.). (default 'shiftwidth'). cino= cino=>2 cino=>2s > if (cond) if (cond) if (cond) { { { foo; foo; foo; } } } < *cino-e* eN Add N to the prevailing indent inside a set of braces if the opening brace at the End of the line (more precise: is not the first character in a line). This is useful if you want a different indent when the '{' is at the start of the line from when '{' is at the end of the line. (default 0). cino= cino=e2 cino=e-2 > if (cond) { if (cond) { if (cond) { foo; foo; foo; } } } else else else { { { bar; bar; bar; } } } < *cino-n* nN Add N to the prevailing indent for a statement after an "if", "while", etc., if it is NOT inside a set of braces. This is useful if you want a different indent when there is no '{' before the statement from when there is a '{' before it. (default 0). cino= cino=n2 cino=n-2 > if (cond) if (cond) if (cond) foo; foo; foo; else else else { { { bar; bar; bar; } } } < *cino-f* fN Place the first opening brace of a function or other block in column N. This applies only for an opening brace that is not inside other braces and is at the start of the line. What comes after the brace is put relative to this brace. (default 0). cino= cino=f.5s cino=f1s > func() func() func() { { { int foo; int foo; int foo; < *cino-{* {N Place opening braces N characters from the prevailing indent. This applies only for opening braces that are inside other braces. (default 0). cino= cino={.5s cino={1s > if (cond) if (cond) if (cond) { { { foo; foo; foo; < *cino-}* }N Place closing braces N characters from the matching opening brace. (default 0). cino= cino={2,}-0.5s cino=}2 > if (cond) if (cond) if (cond) { { { foo; foo; foo; } } } < *cino-^* ^N Add N to the prevailing indent inside a set of braces if the opening brace is in column 0. This can specify a different indent for whole of a function (some may like to set it to a negative number). (default 0). cino= cino=^-2 cino=^-s > func() func() func() { { { if (cond) if (cond) if (cond) { { { a = b; a = b; a = b; } } } } } } < *cino-L* LN Controls placement of jump labels. If N is negative, the label will be placed at column 1. If N is non-negative, the indent of the label will be the prevailing indent minus N. (default -1). cino= cino=L2 cino=Ls > func() func() func() { { { { { { stmt; stmt; stmt; LABEL: LABEL: LABEL: } } } } } } < *cino-:* :N Place case labels N characters from the indent of the switch(). (default 'shiftwidth'). cino= cino=:0 > switch (x) switch(x) { { case 1: case 1: a = b; a = b; default: default: } } < *cino-=* =N Place statements occurring after a case label N characters from the indent of the label. (default 'shiftwidth'). cino= cino==10 > case 11: case 11: a = a + 1; a = a + 1; b = b + 1; < *cino-l* lN If N != 0 Vim will align with a case label instead of the statement after it in the same line. cino= cino=l1 > switch (a) { switch (a) { case 1: { case 1: { break; break; } } < *cino-b* bN If N != 0 Vim will align a final "break" with the case label, so that case..break looks like a sort of block. (default: 0). When using 1, consider adding "0=break" to 'cinkeys'. cino= cino=b1 > switch (x) switch(x) { { case 1: case 1: a = b; a = b; break; break; default: default: a = 0; a = 0; break; break; } } < *cino-g* gN Place C++ scope declarations N characters from the indent of the block they are in. (default 'shiftwidth'). A scope declaration can be "public:", "protected:" or "private:". cino= cino=g0 > { { public: public: a = b; a = b; private: private: } } < *cino-h* hN Place statements occurring after a C++ scope declaration N characters from the indent of the label. (default 'shiftwidth'). cino= cino=h10 > public: public: a = a + 1; a = a + 1; b = b + 1; < *cino-N* NN Indent inside C++ namespace N characters extra compared to a normal block. (default 0). cino= cino=N-s > namespace { namespace { void function(); void function(); } } namespace my namespace my { { void function(); void function(); } } < *cino-E* EN Indent inside C++ linkage specifications (extern "C" or extern "C++") N characters extra compared to a normal block. (default 0). cino= cino=E-s > extern "C" { extern "C" { void function(); void function(); } } extern "C" extern "C" { { void function(); void function(); } } < *cino-p* pN Parameter declarations for K&R-style function declarations will be indented N characters from the margin. (default 'shiftwidth'). cino= cino=p0 cino=p2s > func(a, b) func(a, b) func(a, b) int a; int a; int a; char b; char b; char b; < *cino-t* tN Indent a function return type declaration N characters from the margin. (default 'shiftwidth'). cino= cino=t0 cino=t7 > int int int func() func() func() < *cino-i* iN Indent C++ base class declarations and constructor initializations, if they start in a new line (otherwise they are aligned at the right side of the ':'). (default 'shiftwidth'). cino= cino=i0 > class MyClass : class MyClass : public BaseClass public BaseClass {} {} MyClass::MyClass() : MyClass::MyClass() : BaseClass(3) BaseClass(3) {} {} < *cino-+* +N Indent a continuation line (a line that spills onto the next) inside a function N additional characters. (default 'shiftwidth'). Outside of a function, when the previous line ended in a backslash, the 2 * N is used. cino= cino=+10 > a = b + 9 * a = b + 9 * c; c; < *cino-c* cN Indent comment lines after the comment opener, when there is no other text with which to align, N characters from the comment opener. (default 3). See also |format-comments|. cino= cino=c5 > /* /* text. text. */ */ < *cino-C* CN When N is non-zero, indent comment lines by the amount specified with the c flag above even if there is other text behind the comment opener. (default 0). cino=c0 cino=c0,C1 > /******** /******** text. text. ********/ ********/ < (Example uses ":set comments& comments-=s1:/* comments^=s0:/*") *cino-/* /N Indent comment lines N characters extra. (default 0). cino= cino=/4 > a = b; a = b; /* comment */ /* comment */ c = d; c = d; < *cino-(* (N When in unclosed parentheses, indent N characters from the line with the unclosed parentheses. Add a 'shiftwidth' for every extra unclosed parentheses. When N is 0 or the unclosed parentheses is the first non-white character in its line, line up with the next non-white character after the unclosed parentheses. (default 'shiftwidth' * 2). cino= cino=(0 > if (c1 && (c2 || if (c1 && (c2 || c3)) c3)) foo; foo; if (c1 && if (c1 && (c2 || c3)) (c2 || c3)) { { < *cino-u* uN Same as (N, but for one nesting level deeper. (default 'shiftwidth'). cino= cino=u2 > if (c123456789 if (c123456789 && (c22345 && (c22345 || c3)) || c3)) < *cino-U* UN When N is non-zero, do not ignore the indenting specified by ( or u in case that the unclosed parentheses is the first non-white character in its line. (default 0). cino= or cino=(s cino=(s,U1 > c = c1 && c = c1 && ( ( c2 || c2 || c3 c3 ) && c4; ) && c4; < *cino-w* wN When in unclosed parentheses and N is non-zero and either using "(0" or "u0", respectively, or using "U0" and the unclosed parentheses is the first non-white character in its line, line up with the character immediately after the unclosed parentheses rather than the first non-white character. (default 0). cino=(0 cino=(0,w1 > if ( c1 if ( c1 && ( c2 && ( c2 || c3)) || c3)) foo; foo; < *cino-W* WN When in unclosed parentheses and N is non-zero and either using "(0" or "u0", respectively and the unclosed parentheses is the last non-white character in its line and it is not the closing parentheses, indent the following line N characters relative to the outer context (i.e. start of the line or the next unclosed parentheses). (default: 0). cino=(0 cino=(0,W4 > a_long_line( a_long_line( argument, argument, argument); argument); a_short_line(argument, a_short_line(argument, argument); argument); < *cino-k* kN When in unclosed parentheses which follow "if", "for" or "while" and N is non-zero, overrides the behaviour defined by "(N": causes the indent to be N characters relative to the outer context (i.e. the line where "if", "for" or "while" is). Has no effect on deeper levels of nesting. Affects flags like "wN" only for the "if", "for" and "while" conditions. If 0, defaults to behaviour defined by the "(N" flag. (default: 0). cino=(0 cino=(0,ks > if (condition1 if (condition1 && condition2) && condition2) action(); action(); function(argument1 function(argument1 && argument2); && argument2); < *cino-m* mN When N is non-zero, line up a line starting with a closing parentheses with the first character of the line with the matching opening parentheses. (default 0). cino=(s cino=(s,m1 > c = c1 && ( c = c1 && ( c2 || c2 || c3 c3 ) && c4; ) && c4; if ( if ( c1 && c2 c1 && c2 ) ) foo; foo; < *cino-M* MN When N is non-zero, line up a line starting with a closing parentheses with the first character of the previous line. (default 0). cino= cino=M1 > if (cond1 && if (cond1 && cond2 cond2 ) ) < *java-cinoptions* *java-indenting* *cino-j* jN Indent Java anonymous classes correctly. Also works well for Javascript. The value 'N' is currently unused but must be non-zero (e.g. 'j1'). 'j1' will indent for example the following code snippet correctly: > object.add(new ChangeListener() { public void stateChanged(ChangeEvent e) { do_something(); } }); < *javascript-cinoptions* *javascript-indenting* *cino-J* JN Indent JavaScript object declarations correctly by not confusing them with labels. The value 'N' is currently unused but must be non-zero (e.g. 'J1'). If you enable this you probably also want to set |cino-j|. > var bar = { foo: { that: this, some: ok, }, "bar":{ a : 2, b: "123abc", x: 4, "y": 5 } } < *cino-)* )N Vim searches for unclosed parentheses at most N lines away. This limits the time needed to search for parentheses. (default 20 lines). *cino-star* *N Vim searches for unclosed comments at most N lines away. This limits the time needed to search for the start of a comment. If your /* */ comments stop indenting after N lines this is the value you will want to change. (default 70 lines). *cino-#* #N When N is non-zero recognize shell/Perl comments starting with '#', do not recognize preprocessor lines; allow right-shifting lines that start with "#". When N is zero (default): don't recognize '#' comments, do recognize preprocessor lines; right-shifting lines that start with "#" does not work. The defaults, spelled out in full, are: cinoptions=>s,e0,n0,f0,{0,}0,^0,L-1,:s,=s,l0,b0,gs,hs,N0,E0,ps,ts,is,+s, c3,C0,/0,(2s,us,U0,w0,W0,k0,m0,j0,J0,)20,*70,#0 Vim puts a line in column 1 if: - It starts with '#' (preprocessor directives), if 'cinkeys' contains '#0'. - It starts with a label (a keyword followed by ':', other than "case" and "default") and 'cinoptions' does not contain an 'L' entry with a positive value. - Any combination of indentations causes the line to have less than 0 indentation. ============================================================================== 2. Indenting by expression *indent-expression* The basics for using flexible indenting are explained in section |30.3| of the user manual. If you want to write your own indent file, it must set the 'indentexpr' option. Setting the 'indentkeys' option is often useful. See the $VIMRUNTIME/indent directory for examples. REMARKS ABOUT SPECIFIC INDENT FILES ~ CLOJURE *ft-clojure-indent* *clojure-indent* Clojure indentation differs somewhat from traditional Lisps, due in part to the use of square and curly brackets, and otherwise by community convention. These conventions are not universally followed, so the Clojure indent script offers a few configurable options, listed below. If the current vim does not include searchpairpos(), the indent script falls back to normal 'lisp' indenting, and the following options are ignored. *g:clojure_maxlines* Set maximum scan distance of searchpairpos(). Larger values trade performance for correctness when dealing with very long forms. A value of 0 will scan without limits. > " Default let g:clojure_maxlines = 100 < *g:clojure_fuzzy_indent* *g:clojure_fuzzy_indent_patterns* *g:clojure_fuzzy_indent_blacklist* The 'lispwords' option is a list of comma-separated words that mark special forms whose subforms must be indented with two spaces. For example: > (defn bad [] "Incorrect indentation") (defn good [] "Correct indentation") < If you would like to specify 'lispwords' with a |pattern| instead, you can use the fuzzy indent feature: > " Default let g:clojure_fuzzy_indent = 1 let g:clojure_fuzzy_indent_patterns = ['^with', '^def', '^let'] let g:clojure_fuzzy_indent_blacklist = \ ['-fn$', '\v^with-%(meta|out-str|loading-context)$'] " Legacy comma-delimited string version; the list format above is " recommended. Note that patterns are implicitly anchored with ^ and $ let g:clojure_fuzzy_indent_patterns = 'with.*,def.*,let.*' < |g:clojure_fuzzy_indent_patterns| and |g:clojure_fuzzy_indent_blacklist| are |Lists| of patterns that will be matched against the unquoted, unqualified symbol at the head of a list. This means that a pattern like "^foo" will match all these candidates: "foobar", "my.ns/foobar", and "#'foobar". Each candidate word is tested for special treatment in this order: 1. Return true if word is literally in 'lispwords' 2. Return false if word matches a pattern in |g:clojure_fuzzy_indent_blacklist| 3. Return true if word matches a pattern in |g:clojure_fuzzy_indent_patterns| 4. Return false and indent normally otherwise *g:clojure_special_indent_words* Some forms in Clojure are indented so that every subform is indented only two spaces, regardless of 'lispwords'. If you have a custom construct that should be indented in this idiosyncratic fashion, you can add your symbols to the default list below. > " Default let g:clojure_special_indent_words = \ 'deftype,defrecord,reify,proxy,extend-type,extend-protocol,letfn' < *g:clojure_align_multiline_strings* Align subsequent lines in multiline strings to the column after the opening quote, instead of the same column. For example: > (def default "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.") (def aligned "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.") < This option is off by default. > " Default let g:clojure_align_multiline_strings = 0 < *g:clojure_align_subforms* By default, parenthesized compound forms that look like function calls and whose head subform is on its own line have subsequent subforms indented by two spaces relative to the opening paren: > (foo bar baz) < Setting this option changes this behavior so that all subforms are aligned to the same column, emulating the default behavior of clojure-mode.el: > (foo bar baz) < This option is off by default. > " Default let g:clojure_align_subforms = 0 < FORTRAN *ft-fortran-indent* Block if, select case, where, and forall constructs are indented. So are type, interface, associate, block, and enum constructs. The indenting of subroutines, functions, modules, and program blocks is optional. Comments, labelled statements and continuation lines are indented if the Fortran is in free source form, whereas they are not indented if the Fortran is in fixed source form because of the left margin requirements. Hence manual indent corrections will be necessary for labelled statements and continuation lines when fixed source form is being used. For further discussion of the method used for the detection of source format see |ft-fortran-syntax|. Do loops ~ All do loops are left unindented by default. Do loops can be unstructured in Fortran with (possibly multiple) loops ending on a labelled executable statement of almost arbitrary type. Correct indentation requires compiler-quality parsing. Old code with do loops ending on labelled statements of arbitrary type can be indented with elaborate programs such as Tidy (http://www.unb.ca/chem/ajit/f_tidy.htm). Structured do/continue loops are also left unindented because continue statements are also used for purposes other than ending a do loop. Programs such as Tidy can convert structured do/continue loops to the do/enddo form. Do loops of the do/enddo variety can be indented. If you use only structured loops of the do/enddo form, you should declare this by setting the fortran_do_enddo variable in your .vimrc as follows > let fortran_do_enddo=1 in which case do loops will be indented. If all your loops are of do/enddo type only in, say, .f90 files, then you should set a buffer flag with an autocommand such as > au! BufRead,BufNewFile *.f90 let b:fortran_do_enddo=1 to get do loops indented in .f90 files and left alone in Fortran files with other extensions such as .for. Program units ~ The indenting of program units (subroutines, functions, modules, and program blocks) is enabled by default but can be suppressed if a lighter, screen-width preserving indent style is desired. To suppress the indenting of program units for all fortran files set the global fortran_indent_less variable in your .vimrc as follows > let fortran_indent_less=1 A finer level of suppression can be achieved by setting the corresponding buffer-local variable as follows > let b:fortran_indent_less=1 HTML *ft-html-indent* *html-indent* *html-indenting* This is about variables you can set in your vimrc to customize HTML indenting. You can set the indent for the first line after <script> and <style> "blocktags" (default "zero"): > :let g:html_indent_script1 = "inc" :let g:html_indent_style1 = "inc" < VALUE MEANING ~ "zero" zero indent "auto" auto indent (same indent as the blocktag) "inc" auto indent + one indent step Many tags increase the indent for what follows per default (see "Add Indent Tags" in the script). You can add further tags with: > :let g:html_indent_inctags = "html,body,head,tbody" You can also remove such tags with: > :let g:html_indent_autotags = "th,td,tr,tfoot,thead" Default value is empty for both variables. Note: the initial "inctags" are only defined once per Vim session. User variables are only read when the script is sourced. To enable your changes during a session, without reloading the HTML file, you can manually do: > :call HtmlIndent_CheckUserSettings() Detail: Calculation of indent inside "blocktags" with "alien" content: BLOCKTAG INDENT EXPR WHEN APPLICABLE ~ <script> : {customizable} if first line of block : cindent(v:lnum) if attributes empty or contain "java" : -1 else (vbscript, tcl, ...) <style> : {customizable} if first line of block : GetCSSIndent() else <!-- --> : -1 PHP *ft-php-indent* *php-indent* *php-indenting* NOTE: PHP files will be indented correctly only if PHP |syntax| is active. If you are editing a file in Unix 'fileformat' and '\r' characters are present before new lines, indentation won't proceed correctly ; you have to remove those useless characters first with a command like: > :%s /\r$//g Or, you can simply |:let| the variable PHP_removeCRwhenUnix to 1 and the script will silently remove them when Vim loads a PHP file (at each |BufRead|). OPTIONS: ~ PHP indenting can be altered in several ways by modifying the values of some global variables: *php-comment* *PHP_autoformatcomment* To not enable auto-formatting of comments by default (if you want to use your own 'formatoptions'): > :let g:PHP_autoformatcomment = 0 Else, 't' will be removed from the 'formatoptions' string and "qrowcb" will be added, see |fo-table| for more information. ------------- *PHP_outdentSLComments* To add extra indentation to single-line comments: > :let g:PHP_outdentSLComments = N With N being the number of 'shiftwidth' to add. Only single-line comments will be affected such as: > # Comment // Comment /* Comment */ ------------- *PHP_default_indenting* To add extra indentation to every PHP lines with N being the number of 'shiftwidth' to add: > :let g:PHP_default_indenting = N For example, with N = 1, this will give: > <?php if (!isset($History_lst_sel)) if (!isset($History_lst_sel)) if (!isset($History_lst_sel)) { $History_lst_sel=0; } else $foo="bar"; $command_hist = TRUE; ?> (Notice the extra indentation between the PHP container markers and the code) ------------- *PHP_outdentphpescape* To indent PHP escape tags as the surrounding non-PHP code (only affects the PHP escape tags): > :let g:PHP_outdentphpescape = 0 ------------- *PHP_removeCRwhenUnix* To automatically remove '\r' characters when the 'fileformat' is set to Unix: > :let g:PHP_removeCRwhenUnix = 1 ------------- *PHP_BracesAtCodeLevel* To indent braces at the same level than the code they contain: > :let g:PHP_BracesAtCodeLevel = 1 This will give the following result: > if ($foo) { foo(); } Instead of: > if ($foo) { foo(); } NOTE: Indenting will be a bit slower if this option is used because some optimizations won't be available. ------------- *PHP_vintage_case_default_indent* To indent 'case:' and 'default:' statements in switch() blocks: > :let g:PHP_vintage_case_default_indent = 1 In PHP braces are not required inside 'case/default' blocks therefore 'case:' and 'default:' are indented at the same level than the 'switch()' to avoid meaningless indentation. You can use the above option to return to the traditional way. PYTHON *ft-python-indent* The amount of indent can be set for the following situations. The examples given are the defaults. Note that the variables are set to an expression, so that you can change the value of 'shiftwidth' later. Indent after an open paren: > let g:pyindent_open_paren = '&sw * 2' Indent after a nested paren: > let g:pyindent_nested_paren = '&sw' Indent for a continuation line: > let g:pyindent_continue = '&sw * 2' R *ft-r-indent* Function arguments are aligned if they span for multiple lines. If you prefer do not have the arguments of functions aligned, put in your |vimrc|: > let r_indent_align_args = 0 < All lines beginning with a comment character, #, get the same indentation level of the normal R code. Users of Emacs/ESS may be used to have lines beginning with a single # indented in the 40th column, ## indented as R code, and ### not indented. If you prefer that lines beginning with comment characters are aligned as they are by Emacs/ESS, put in your |vimrc|: > let r_indent_ess_comments = 1 < If you prefer that lines beginning with a single # are aligned at a column different from the 40th one, you should set a new value to the variable r_indent_comment_column, as in the example below: > let r_indent_comment_column = 30 < Any code after a line that ends with "<-" is indented. Emacs/ESS does not indent the code if it is a top level function. If you prefer that the Vim-R-plugin behaves like Emacs/ESS in this regard, put in your |vimrc|: > let r_indent_ess_compatible = 1 < Below is an example of indentation with and without this option enabled: > ### r_indent_ess_compatible = 1 ### r_indent_ess_compatible = 0 foo <- foo <- function(x) function(x) { { paste(x) paste(x) } } < SHELL *ft-sh-indent* The amount of indent applied under various circumstances in a shell file can be configured by setting the following keys in the |Dictionary| b:sh_indent_defaults to a specific amount or to a |Funcref| that references a function that will return the amount desired: b:sh_indent_options['default'] Default amount of indent. b:sh_indent_options['continuation-line'] Amount of indent to add to a continued line. b:sh_indent_options['case-labels'] Amount of indent to add for case labels. (not actually implemented) b:sh_indent_options['case-statements'] Amount of indent to add for case statements. b:sh_indent_options['case-breaks'] Amount of indent to add (or more likely remove) for case breaks. VERILOG *ft-verilog-indent* General block statements such as if, for, case, always, initial, function, specify and begin, etc., are indented. The module block statements (first level blocks) are not indented by default. you can turn on the indent with setting a variable in the .vimrc as follows: > let b:verilog_indent_modules = 1 then the module blocks will be indented. To stop this, remove the variable: > :unlet b:verilog_indent_modules To set the variable only for Verilog file. The following statements can be used: > au BufReadPost * if exists("b:current_syntax") au BufReadPost * if b:current_syntax == "verilog" au BufReadPost * let b:verilog_indent_modules = 1 au BufReadPost * endif au BufReadPost * endif Furthermore, setting the variable b:verilog_indent_width to change the indenting width (default is 'shiftwidth'): > let b:verilog_indent_width = 4 let b:verilog_indent_width = &sw * 2 In addition, you can turn the verbose mode for debug issue: > let b:verilog_indent_verbose = 1 Make sure to do ":set cmdheight=2" first to allow the display of the message. VHDL *ft-vhdl-indent* Alignment of generic/port mapping statements are performed by default. This causes the following alignment example: > ENTITY sync IS PORT ( clk : IN STD_LOGIC; reset_n : IN STD_LOGIC; data_input : IN STD_LOGIC; data_out : OUT STD_LOGIC ); END ENTITY sync; To turn this off, add > let g:vhdl_indent_genportmap = 0 to the .vimrc file, which causes the previous alignment example to change: > ENTITY sync IS PORT ( clk : IN STD_LOGIC; reset_n : IN STD_LOGIC; data_input : IN STD_LOGIC; data_out : OUT STD_LOGIC ); END ENTITY sync; ---------------------------------------- Alignment of right-hand side assignment "<=" statements are performed by default. This causes the following alignment example: > sig_out <= (bus_a(1) AND (sig_b OR sig_c)) OR (bus_a(0) AND sig_d); To turn this off, add > let g:vhdl_indent_rhsassign = 0 to the .vimrc file, which causes the previous alignment example to change: > sig_out <= (bus_a(1) AND (sig_b OR sig_c)) OR (bus_a(0) AND sig_d); ---------------------------------------- Full-line comments (lines that begin with "--") are indented to be aligned with the very previous line's comment, PROVIDED that a whitespace follows after "--". For example: > sig_a <= sig_b; -- start of a comment -- continuation of the comment -- more of the same comment While in Insert mode, after typing "-- " (note the space " "), hitting CTRL-F will align the current "-- " with the previous line's "--". If the very previous line does not contain "--", THEN the full-line comment will be aligned with the start of the next non-blank line that is NOT a full-line comment. Indenting the following code: > sig_c <= sig_d; -- comment 0 -- comment 1 -- comment 2 --debug_code: --PROCESS(debug_in) --BEGIN -- FOR i IN 15 DOWNTO 0 LOOP -- debug_out(8*i+7 DOWNTO 8*i) <= debug_in(15-i); -- END LOOP; --END PROCESS debug_code; -- comment 3 sig_e <= sig_f; -- comment 4 -- comment 5 results in: > sig_c <= sig_d; -- comment 0 -- comment 1 -- comment 2 --debug_code: --PROCESS(debug_in) --BEGIN -- FOR i IN 15 DOWNTO 0 LOOP -- debug_out(8*i+7 DOWNTO 8*i) <= debug_in(15-i); -- END LOOP; --END PROCESS debug_code; -- comment 3 sig_e <= sig_f; -- comment 4 -- comment 5 Notice that "--debug_code:" does not align with "-- comment 2" because there is no whitespace that follows after "--" in "--debug_code:". Given the dynamic nature of indenting comments, indenting should be done TWICE. On the first pass, code will be indented. On the second pass, full-line comments will be indented according to the correctly indented code. VIM *ft-vim-indent* For indenting Vim scripts there is one variable that specifies the amount of indent for a continuation line, a line that starts with a backslash: > :let g:vim_indent_cont = &sw * 3 Three times shiftwidth is the default value. vim:tw=78:ts=8:ft=help:norl:
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