add some comments

This commit is contained in:
Michael Moon 2011-12-11 08:27:16 +11:00
parent 359d4073df
commit ca25494177

View file

@ -4,18 +4,20 @@ use strict;
my $z = 0;
# read stdin and any/all files passed as parameters one line at a time
for (<>) {
if (/Z(\d+(\.\d+)?)/) {
$z = $1;
print;
# if we find a Z word, save it
$z = $1 if /Z(\d+(\.\d+)?)/;
# if we don't have Z, but we do have X and Y
if (!/Z/ && /X/ && /Y/ && $z > 0) {
# chop off the end of the line (incl. comments), saving chopped section in $1
s/\s*([\r\n\;\(].*)//s;
# print start of line, insert our Z value then re-add the chopped end of line
print "$_ Z$z $1";
}
else {
if (!/Z/ && /X/ && /Y/ && $z > 0) {
s/\s*([\r\n\;\(].*)//gs;
print "$_ Z$z $1";
}
else {
print;
}
# nothing interesting, print line as-is
print;
}
}