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Full Discussion: Find global variables, c source
Top Forums Shell Programming and Scripting Find global variables, c source Post 302615391 by Corona688 on Thursday 29th of March 2012 12:22:01 PM
Old 03-29-2012
This works, but also finds function declarations:

Code:
# Strip out preprocessor statements, remove all comments
<mycode.c sed '/^#/d;s#//.*$##;s#/\*.*\*/##g;#/\*#,#\*/#d' |
# Flatten all remaining whitespace
        tr -s '[ \r\n\t]' ' ' |
# Put new newlines where appropriate
        sed 's/\([{}]\) /\n\0\n/g;s/; */;\n/g' |
# Count brackets, find lines beginning with 'int'
        awk '/{/ { B++; }; /}/ { B-- };  (!B) && /^((static|extern|const) )*int/'

...and since you can declare functions and variables in the same statement, that's going to be very hard to prevent...
 

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LEARN ABOUT REDHAT

su

SU(1)									FSF								     SU(1)

NAME

       su - run a shell with substitute user and group IDs

SYNOPSIS

       su [OPTION]... [-] [USER [ARG]...]

DESCRIPTION

       Change the effective user id and group id to that of USER.

       -, -l, --login
	      make the shell a login shell

       -c, --commmand=COMMAND
	      pass a single COMMAND to the shell with -c

       -f, --fast
	      pass -f to the shell (for csh or tcsh)

       -m, --preserve-environment
	      do not reset environment variables

       -p     same as -m

       -s, --shell=SHELL
	      run SHELL if /etc/shells allows it

       --help display this help and exit

       --version
	      output version information and exit

       A mere - implies -l.   If USER not given, assume root.

AUTHOR

       Written by David MacKenzie.

REPORTING BUGS

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

COPYRIGHT

       Copyright (C) 2002 Free Software Foundation, Inc.
       This is free software; see the source for copying conditions.  There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU-
       LAR PURPOSE.

SEE ALSO

       The full documentation for su is maintained as a Texinfo manual.  If the info and su programs are properly installed at your site, the com-
       mand

	      info su

       should give you access to the complete manual.

su (coreutils) 4.5.3						   February 2003							     SU(1)
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