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| -rwxr-xr-x | examples/mk2knr.pl | 76 | ||||
| -rwxr-xr-x | scripts/mk2knr.pl | 76 |
2 files changed, 152 insertions, 0 deletions
diff --git a/examples/mk2knr.pl b/examples/mk2knr.pl new file mode 100755 index 0000000..29f94a1 --- /dev/null +++ b/examples/mk2knr.pl @@ -0,0 +1,76 @@ +#!/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 'scripts/mk2knr.pl files-you-want-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 = (); + + +# 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 javaStyle / Hungarian and PascalStyle 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 ($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, $convertme; + diff --git a/scripts/mk2knr.pl b/scripts/mk2knr.pl new file mode 100755 index 0000000..29f94a1 --- /dev/null +++ b/scripts/mk2knr.pl @@ -0,0 +1,76 @@ +#!/usr/bin/perl -w +# +# @(#) mk2knr.pl - generates a perl script that converts lexemes to K&R-style +# +# How to use this script: +# - In the busybox directory type 'scripts/mk2knr.pl files-you-want-to-convert' +# - Review the 'convertme.pl' script generated and remove / edit any of the +# substitutions in there (please especially check for false positives) +# - Type './convertme.pl same-files-as-before' +# - Compile and see if it works +# +# BUGS: This script does not ignore strings inside comments or strings inside +# quotes (it probably should). + +# set this to something else if you want +$convertme = 'convertme.pl'; + +# internal-use variables (don't touch) +$convert = 0; +%converted = (); + + +# prepare the "convert me" file +open(CM, ">$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 javaStyle / Hungarian and PascalStyle 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 ($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; + |