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add some comments

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This commit is contained in:
Michael Moon 2011-12-11 08:27:16 +11:00
parent 359d4073df
commit ca25494177
1 changed files with 12 additions and 10 deletions
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22
post-processing/z-every-line.pl
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@ -4,18 +4,20 @@ use strict;
my $z = 0; my $z = 0;
# read stdin and any/all files passed as parameters one line at a time
for (<>) { for (<>) {
if (/Z(\d+(\.\d+)?)/) { # if we find a Z word, save it
$z = $1; $z = $1 if /Z(\d+(\.\d+)?)/;
print;
# 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 { else {
if (!/Z/ && /X/ && /Y/ && $z > 0) { # nothing interesting, print line as-is
s/\s*([\r\n\;\(].*)//gs; print;
print "$_ Z$z $1";
}
else {
print;
}
} }
} }