mirror of
https://git.busybox.net/busybox.git
synced 2024-11-27 15:43:26 +08:00
85 lines
2.4 KiB
Perl
Executable File
85 lines
2.4 KiB
Perl
Executable File
#!/usr/bin/perl -w
|
|
#
|
|
# @(#) mk2knr.pl - generates a perl script that converts lexemes to K&R-style
|
|
#
|
|
# How to use this script:
|
|
# - In the busybox directory type 'examples/mk2knr.pl files-to-convert'
|
|
# - Review the 'convertme.pl' script generated and remove / edit any of the
|
|
# substitutions in there (please especially check for false positives)
|
|
# - Type './convertme.pl same-files-as-before'
|
|
# - Compile and see if it works
|
|
#
|
|
# BUGS: This script does not ignore strings inside comments or strings inside
|
|
# quotes (it probably should).
|
|
|
|
# set this to something else if you want
|
|
$convertme = 'convertme.pl';
|
|
|
|
# internal-use variables (don't touch)
|
|
$convert = 0;
|
|
%converted = ();
|
|
|
|
# if no files were specified, print usage
|
|
die "usage: $0 file.c | file.h\n" if scalar(@ARGV) == 0;
|
|
|
|
# prepare the "convert me" file
|
|
open(CM, ">$convertme") or die "convertme.pl $!";
|
|
print CM "#!/usr/bin/perl -p -i\n\n";
|
|
|
|
# process each file passed on the cmd line
|
|
while (<>) {
|
|
|
|
# if the line says "getopt" in it anywhere, we don't want to muck with it
|
|
# because option lists tend to include strings like "cxtzvOf:" which get
|
|
# matched by the "check for mixed case" regexps below
|
|
next if /getopt/;
|
|
|
|
# tokenize the string into just the variables
|
|
while (/([a-zA-Z_][a-zA-Z0-9_]*)/g) {
|
|
$var = $1;
|
|
|
|
# ignore the word "BusyBox"
|
|
next if ($var =~ /BusyBox/);
|
|
|
|
# this checks for javaStyle or szHungarianNotation
|
|
$convert++ if ($var =~ /^[a-z]+[A-Z][a-z]+/);
|
|
|
|
# this checks for PascalStyle
|
|
$convert++ if ($var =~ /^[A-Z][a-z]+[A-Z][a-z]+/);
|
|
|
|
# if we want to add more checks, we can add 'em here, but the above
|
|
# checks catch "just enough" and not too much, so prolly not.
|
|
|
|
if ($convert) {
|
|
$convert = 0;
|
|
|
|
# skip ahead if we've already dealt with this one
|
|
next if ($converted{$var});
|
|
|
|
# record that we've dealt with this var
|
|
$converted{$var} = 1;
|
|
|
|
print CM "s/\\b$var\\b/"; # more to come in just a minute
|
|
|
|
# change the first letter to lower-case
|
|
$var = lcfirst($var);
|
|
|
|
# put underscores before all remaining upper-case letters
|
|
$var =~ s/([A-Z])/_$1/g;
|
|
|
|
# now change the remaining characters to lower-case
|
|
$var = lc($var);
|
|
|
|
print CM "$var/g;\n";
|
|
}
|
|
}
|
|
}
|
|
|
|
# tidy up and make the $convertme script executable
|
|
close(CM);
|
|
chmod 0755, $convertme;
|
|
|
|
# print a helpful help message
|
|
print "Done. Scheduled name changes are in $convertme.\n";
|
|
print "Please review/modify it and then type ./$convertme to do the search & replace.\n";
|