изменяет внешний вид программы C, вставляя или удаляя пробелы (changes the appearance of a C program by inserting or deleting whitespace.)
BACKUP FILES
As of version 1.3, GNU indent makes GNU-style backup files, the
same way GNU Emacs does. This means that either simple or
numbered backup filenames may be made.
Simple backup file names are generated by appending a suffix to
the original file name. The default for this suffix is the one-
character string '~' (tilde). Thus, the backup file for
'python.c' would be 'python.c~'.
Instead of the default, you may specify any string as a suffix by
setting the environment variable SIMPLE_BACKUP_SUFFIX to your
preferred suffix.
Numbered backup versions of a file 'momeraths.c' look like
'momeraths.c.~23~', where 23 is the version of this particular
backup. When making a numbered backup of the file
'src/momeraths.c', the backup file will be named
'src/momeraths.c.~V~', where V is one greater than the highest
version currently existing in the directory 'src'. The
environment variable VERSION_WIDTH controls the number of digits,
using left zero padding when necessary. For instance, setting
this variable to "2" will lead to the backup file being named
'momeraths.c.~04~'.
The type of backup file made is controlled by the value of the
environment variable VERSION_CONTROL. If it is the string
'simple', then only simple backups will be made. If its value is
the string 'numbered', then numbered backups will be made. If
its value is 'numbered-existing', then numbered backups will be
made if there already exist numbered backups for the file being
indented; otherwise, a simple backup is made. If VERSION_CONTROL
is not set, then indent assumes the behaviour of 'numbered-
existing'.
Other versions of indent use the suffix '.BAK' in naming backup
files. This behaviour can be emulated by setting
SIMPLE_BACKUP_SUFFIX to '.BAK'.
Note also that other versions of indent make backups in the
current directory, rather than in the directory of the source
file as GNU indent now does.
