изменяет внешний вид программы C, вставляя или удаляя пробелы (changes the appearance of a C program by inserting or deleting whitespace.)
DISABLING FORMATTING
Formatting of C code may be disabled for portions of a program by
embedding special control comments in the program. To turn off
formatting for a section of a program, place the disabling
control comment /* *INDENT-OFF* */ on a line by itself just
before that section. Program text scanned after this control
comment is output precisely as input with no modifications until
the corresponding enabling comment is scanned on a line by
itself. The enabling control comment is /* *INDENT-ON* */, and
any text following the comment on the line is also output
unformatted. Formatting begins again with the input line
following the enabling control comment.
More precisely, indent does not attempt to verify the closing
delimiter (*/) for these C comments, and any whitespace on the
line is totally transparent.
These control comments also function in their C++ formats, namely
// *INDENT-OFF* and // *INDENT-ON*.
It should be noted that the internal state of indent remains
unchanged over the course of the unformatted section. Thus, for
example, turning off formatting in the middle of a function and
continuing it after the end of the function may lead to bizarre
results. It is therefore wise to be somewhat modular in
selecting code to be left unformatted.
As a historical note, some earlier versions of indent produced
error messages beginning with *INDENT**. These versions of
indent were written to ignore any input text lines which began
with such error messages. I have removed this incestuous feature
from GNU indent.
