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cppi

NAME

cppi - indent the C preprocessor directives in FILE to reflect their nesting

SYNOPSIS

cppi [FILE]
cppi -c [OPTION] [FILE]...

DESCRIPTION

Indent the C preprocessor directives in FILE to reflect their nesting and ensure that there is exactly one space character between each #if, #elif, #define directive and the following token, and write the result to standard output. The number of spaces between the `#' and the following directive must correspond to the level of nesting of that directive. With no FILE, or when FILE is -, read standard input.

-a, --ansi

when checking, fail if text follows #else or #endif

-c, --check

set exit code, but don't produce any output

-l, --list-files-only

don't generate diagnostics about indentation; print to stdout only the names of files that are not properly indented

-m, --max-string-length=LENGTH

fail if there is a double-quoted string longer than LENGTH; if LENGTH is 0 (the default), then there is no limit

--help

display this help and exit

--version

output version information and exit

With the -c option, don't write to stdout. Instead, check the indentation of the specified files giving diagnostics for preprocessor lines that aren't properly indented or are otherwise invalid.

Note that --ansi without --check does not correct the problem of non-ANSI text following #else and #endif directives.

The exit code will be one of these:

0

all directives properly indented

1

some cpp directive(s) improperly indented, or if text follows #else/#endif (enabled with --check --ansi), or found a double-quoted string longer than the specified maximum

2

#if/#endif mismatch, EOF in comment or string

3

file (e.g. open/read/write) error

A pragma directive may have its `#' indented.

AUTHOR

Written by Jim Meyering.

REPORTING BUGS

Report bugs to <bug-cppi@gnu.org>.

COPYRIGHT

Copyright © 2010 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.

SEE ALSO

The full documentation for cppi is maintained as a Texinfo manual. If the info and cppi programs are properly installed at your site, the command

info cppi

should give you access to the complete manual.