| Filename | /usr/share/perl/5.10/Text/Abbrev.pm |
| Statements | Executed 195 statements in 430µs |
| Calls | P | F | Exclusive Time |
Inclusive Time |
Subroutine |
|---|---|---|---|---|---|
| 3 | 1 | 1 | 364µs | 364µs | Text::Abbrev::abbrev |
| Line | State ments |
Time on line |
Calls | Time in subs |
Code |
|---|---|---|---|---|---|
| 1 | package Text::Abbrev; | ||||
| 2 | 1 | 34µs | require 5.005; # Probably works on earlier versions too. | ||
| 3 | 1 | 1µs | require Exporter; | ||
| 4 | |||||
| 5 | 1 | 700ns | our $VERSION = '1.01'; | ||
| 6 | |||||
| 7 | =head1 NAME | ||||
| 8 | |||||
| - - | |||||
| 35 | 1 | 13µs | @ISA = qw(Exporter); | ||
| 36 | 1 | 600ns | @EXPORT = qw(abbrev); | ||
| 37 | |||||
| 38 | # Usage: | ||||
| 39 | # abbrev \%foo, LIST; | ||||
| 40 | # ... | ||||
| 41 | # $long = $foo{$short}; | ||||
| 42 | |||||
| 43 | # spent 364µs within Text::Abbrev::abbrev which was called 3 times, avg 121µs/call:
# 3 times (364µs+0s) by CGI::Session::parse_dsn at line 152 of CGI/Session.pm, avg 121µs/call | ||||
| 44 | 189 | 375µs | my ($word, $hashref, $glob, %table, $returnvoid); | ||
| 45 | |||||
| 46 | @_ or return; # So we don't autovivify onto @_ and trigger warning | ||||
| 47 | if (ref($_[0])) { # hash reference preferably | ||||
| 48 | $hashref = shift; | ||||
| 49 | $returnvoid = 1; | ||||
| 50 | } elsif (ref \$_[0] eq 'GLOB') { # is actually a glob (deprecated) | ||||
| 51 | $hashref = \%{shift()}; | ||||
| 52 | $returnvoid = 1; | ||||
| 53 | } | ||||
| 54 | %{$hashref} = (); | ||||
| 55 | |||||
| 56 | WORD: foreach $word (@_) { | ||||
| 57 | for (my $len = (length $word) - 1; $len > 0; --$len) { | ||||
| 58 | my $abbrev = substr($word,0,$len); | ||||
| 59 | my $seen = ++$table{$abbrev}; | ||||
| 60 | if ($seen == 1) { # We're the first word so far to have | ||||
| 61 | # this abbreviation. | ||||
| 62 | $hashref->{$abbrev} = $word; | ||||
| 63 | } elsif ($seen == 2) { # We're the second word to have this | ||||
| 64 | # abbreviation, so we can't use it. | ||||
| 65 | delete $hashref->{$abbrev}; | ||||
| 66 | } else { # We're the third word to have this | ||||
| 67 | # abbreviation, so skip to the next word. | ||||
| 68 | next WORD; | ||||
| 69 | } | ||||
| 70 | } | ||||
| 71 | } | ||||
| 72 | # Non-abbreviations always get entered, even if they aren't unique | ||||
| 73 | foreach $word (@_) { | ||||
| 74 | $hashref->{$word} = $word; | ||||
| 75 | } | ||||
| 76 | return if $returnvoid; | ||||
| 77 | if (wantarray) { | ||||
| 78 | %{$hashref}; | ||||
| 79 | } else { | ||||
| 80 | $hashref; | ||||
| 81 | } | ||||
| 82 | } | ||||
| 83 | |||||
| 84 | 1 | 6µs | 1; |