Linux indent command

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The Linux indent command is used to adjust the format of C original code files.

The Linux indent command is used to adjust the format of C original code files.

Syntax

indent [parameters][source file] or indent [parameters][source file][-o Target file]

Parameters:

• -bad or--blank-lines-after-declarations 　Add a blank line before the declaration section.
• -bap or--blank-lines-after-procedures 　Add a blank line before the program.
• -bbb or--blank-lines-after-block-comments 　Add a blank line after the comment section.
• -bc or--blank-lines-after-commas 　If there is a comma in the declaration section, it will be on a new line.
• -bl or--braces-after-if-line 　The '{' after 'if(,' or 'else,' or 'for,' etc.) and the subsequent execution section are on different lines, and '}' is on a separate line.
• -bli<缩排格数> or--brace-indent<缩排格数> 　Set the indentation space for '{' and '}'.
• -br or--braces-on-if-line 　The '{' after 'if(,' or 'else,' or 'for,' etc.) and the subsequent execution section are on different lines, and '}' is on a separate line.
• -bs or--blank-before-sizeof 　Leave a space after 'sizeof'.
• -c<栏数> or--comment-indentation<栏数> 　Place the comments to the right of the code at the specified column.
• -cd<栏数> or--declaration-comment-column<栏数> 　Place the comments to the right of the declarations at the specified column.
• -cdb or--comment-delimiters-on-blank-lines 　The comment symbol is on a separate line.
• -ce or--cuddle-else 　Place 'else' after the '}' of the if execution section.
• -ci<缩排格数> or--continuation-indentation<缩排格数> 　Specify the indentation space after line breaks for long statements.
• -cli<缩排格数> or--case-indentation-<缩排格数> 　Set the indentation space when using 'case'.
• -cp<栏数> or-else-endif-column<栏数> 　Place the comments to the right of the 'else' and 'elseif' statements at the specified column.
• -cs or--space-after-cast 　Leave a space after 'cast'.
• -d<缩排格数> or-line-comments-indentation<缩排格数> 　Set the indentation space for comments that are not placed on the right side of the code.
• -di<栏数> or--declaration-indentation<栏数> 　Place the variables of the declaration section at the specified column.
• -fc1or--format-first-column-comments 　Set the format for comments placed at the beginning of each line.
• -fca or--format-all-comments 　Set the format of all comments.
• -gnu or--gnu-style 　Specify the use of GNU formatting, which is the default value.
• -i<格数> or--indent-level<格数> 　Set the number of spaces for indentation.
• -ip<格数> or--parameter-indentation<格数> 　Set the indentation number of the parameters.
• -kr or--k-and-r-style 　Specify the use of Kernighan & Ritchie's format.
• -lp or--continue-at-parentheses 　Align the content of each line within parentheses vertically when the description is too long and wrapped, and the description contains parentheses.
• -nbad or--no-blank-lines-after-declarations 　Do not add a blank line after the declaration block.
• -nbap or--no-blank-lines-after-procedures 　Do not add a blank line after the program.
• -nbbb or--no-blank-lines-after-block-comments 　Do not add a blank line after the comment block.
• -nbc or--no-blank-lines-after-commas 　Do not wrap lines in the declaration block even if there are commas.
• -ncdb or--no-comment-delimiters-on-blank-lines 　Do not make the comment symbol a line by itself.
• -nce or--dont-cuddle-else 　Do not place 'else' after '}'.
• -ncs or--no-space-after-casts 　Do not leave a space after 'cast'.
• -nfc1or--dont-format-first-column-comments 　Do not format comments placed at the beginning of each line.
• -nfca or--dont-format-comments 　Do not format any comments.
• -nip or--no-parameter-indentation 　Do not indent the parameters.
• -nlp or--dont-line-up-parentheses 　Do not align the starting column of each line within parentheses when the description is too long and wrapped, and the description contains parentheses.
• -npcs or--no-space-after-function-call-names 　Do not add a space after the function name in the call.
• -npro or--ignore-profile 　Do not read the configuration file .indent.pro for indent.
• -npsl or--dont-break-procedure-type 　Place the program type and program name on the same line.
• -nsc or--dont-star-comments 　Do not add an asterisk '(' to the left of the comment.*)。
• -nsob or--leave-optional-semicolon 　Do not process extra blank lines.
• -nss or--dont-space-special-semicolon 　If the 'for' or 'while' block has only one line, do not add a space before the semicolon.
• -nv or--no-verbosity 　Do not display detailed information.
• -orig or--original 　Use Berkeley's format.
• -pcs or--space-after-procedure-calls 　Add a space between the function name and '{' in the call.
• -psl or--procnames-start-lines 　Place the program type on the line before the program name.
• -sc or--start-left-side-of-comments 　Add an asterisk '(' to the left of each line comment.*)。
• -sob or--swallow-optional-blank-lines 　Delete extra blank lines.
• -ss or--space-special-If there is a line in the 'for' or 'while' block, add a space before the semicolon.
• -st or--standard-output 　Display the results on the standard output device.
• -T 　Indent the name of the data type.
• -ts<格数> or--tab-size<格数> 　Set the length of tab.
• -v or--verbose 　Display detailed information during execution.
• -version 　Display version information.

Indent code formatting instructions

Indent parameter used	Value	Meaning
--blank-lines-after-declarations	bad	Add an empty line after variable declarations
--blank-lines-after-procedures	bap	Add an empty line after the function ends
--blank-lines-before-block-comments	bbb	Add an empty line before block comments
--break-before-boolean-operator	bbo	Long lines are broken before logical operators
--blank-lines-after-commas	nbc	In variable declarations, variables separated by commas do not break into lines
--braces-after-if-line	bl	"if" and "{" are split into two lines
--brace-indent 0	bli0	"{" does not continue to indent
--braces-after-struct-decl-line	bls	Define structures, "struct" and "{" are split into two lines
--comment-indentationn	c33	Comments after statements start at line33
--declaration-comment-columnn	cd33	Comments after variable declarations start at line33
--comment-delimiters-on-blank-lines	ncdb	Do not change single-line comments to block comments
--cuddle-do-while	ncdw	"do --- The "while" in "while" and the preceding "}" start on a new line
--cuddle-else	nce	"else" and the preceding "}" start on a new line
--case-indentation 0	cli0	0 spaces for case statements within switch
--else-endif-columnn	cp33	Comments after #else, #endif start at line33
--space-after-cast	cs	Add a space after type conversion
--line-comments-indentation n	d0	Single-line comments (do not indent from1Column starting), do not indent to the left
--break-function-decl-args	nbfda	Disable: One parameter per line for function arguments
--declaration-indentationn	di2	Variable declaration, variable starts at2Line, that is, it is not necessary to align.
--format-first-column-comments	nfc1	Do not format comments starting from the first line.
--format-all-comments	nfca	Do not enable the switch for full formatting of comments.
--honour-newlines	hnl	Prefer to break long lines at the position of newlines in the input.
--indent-leveln	i4	Set the number of characters to indent, if it is a multiple of tab, use tab to indent, otherwise fill with spaces.
--parameter-indentationn	ip5	Parameter description indentation in old-style function definitions5spaces
--line-length 75	l75	The longest non-comment line75
--continue-at-parentheses	lp	Continuation lines start from the parentheses on the previous line
--space-after-procedure-calls	pcs	Insert a space between the function and "("
--space-after-parentheses	nprs	Do not insert space between "(" and ")" after ")"
--procnames-start-lines	psl	Place the function name and return type on two lines in the definition
--space-after-for	saf	There is space after the word "for"
--space-after-if	sai	There is space after the word "if"
--space-after-while	saw	There is space after the word "while"
--start-left-side-of-comments	nsc	Do not add space in the generated block comments*
--swallow-optional-blank-lines	nsob	Do not remove the optional blank lines
--space-special-semicolon	nss	a for or while statement in a line, do not add space before ";"
--tab-size	ts4	one tab is4an empty space（It should be divisible by"）-in"）
--use-tabs	ut	Use tab to indent

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