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Pod-ProjectDocs (0.48) *****

Bhai gand fad hai. Awesome!

YAML (1.23) *

This YAML won't install. It unpacks in the current directory in a flat hierarchy.
ns2 .../home/bennett/tmp 554# ll YAML-1.23.tar.gz
-rwxr-xr-x 1 bennett tsysadm 83566 Aug 19 09:20 YAML-1.23.tar.gz*
ns2 .../home/bennett/tmp 555# tar tzf YAML-1.23.tar.gz
YAML-1.23
README
Changes
t
svk.t
LICENSE
xt
pod.t
pmv.t
test.t
MANIFEST
META.yml
meta.t
inbox.t
META.json
numify.t
export.t
errors.t
regexp.t
changes.t
bugs-rt.t
lib
YAML.pm
Makefile.PL
CONTRIBUTING
marshall.t
issue-69.t
preserve.t
rt-90593.t
YAML.pod
dump-file.t
node-info.t
TestYAML.pm
... you get the idea ...

PPR (0.000011) *****

The coolest thing since PPI. Now every time someone still says that one can't parse HTML or balanced parentheses using regex, you can just point him to this module to shut him up (although, if he had said that one *shouldn't*...).

Also now you can say that Perl is a simple language that is easy to learn. Why? Well, it's so simple you can parse the whole syntax with a single regex.

Compress-Zstd (0.05)

This module offers an interface to Facebook's new Zstandard compression library based on the new assymetric numeral compression algorithms of Jarek Duda. It incorporates the Zstandard libraries into the module, which means that you don't have to download any third-party libraries to install this. It should be a great contribution, but I have to say I'm frustrated by this module.

If you look at the tests here:

matrix.cpantesters.org/?dist=Compress...

it's fairly clear that there is a problem. The problem can be solved with a very minor change:

github.com/spiritloose/Compress-Zstd/...

The bug was reported twice:

github.com/spiritloose/Compress-Zstd/...

The author went on to release another version to CPAN after the bug reports.

While I think this module could be a big contribution to CPAN, I'm not really sure why the module owner won't fix trivial bugs like that, but leaves the module in a state of disarray.

All of the Windows compilations report errors too:

www.cpantesters.org/cpan/report/f2b84...

www.cpantesters.org/cpan/report/0cc9e...

I don't know how these problems could be rectified, but presumably it is just a question of using the right compilation options.

DBIx-Compare (1.7) **

Use MySQL-specific SQL dialect "SHOW TABLES" so comparing e.g. two SQLite database is an instant fail, even though there is DBIx::Compare::SQLite. Instead of the common convention like DBIx::Compare->new(...), uses db_comparison->new(...), sqlite_comparison->new(...), etc.

ExtUtils-ParseXS (3.35)

Doesn't accept bugreports.
Broken visibility for -flto=thin (link time optimization) and solaris,
fixed in cperl since Nov 2016.
The CPAN release misses the 3 xs pods.
do_open() broken under C++, fixed in cperl since Nov 2016.

Perl-Critic (1.130) *****

Hey, Perl::Critic has not been reviewed for quite a while...

Finally take the plunge (again) to include Perl::Critic in my development work, this time adding critic test in the Dist::Zilla release process. Already caught a couple of stupid bugs otherwise uncaught by perl's -w. Aside from that, will help you become more consistent and a better (Perl) programmer. Invaluable!

Config-Perl (0.06)

Rating Data::Undump::PPI, which currently lives inside Config-Perl:

Of course this is a nice proof of concept, but for "real world" usage, look at Data::Undump which is about 2000x faster :)

URI-Title (1.901) *****

Works like a charm to get the titles of web pages.

I recently made my own bookmarking application using Perl. Copying and pasting the URL is ok, but I am just too lazy to type in the title of each page I want to bookmark. How to get the title? I looked on metacpan and found this, and after adding about two lines of code to my bookmarking application I now get the titles just like that. Even better the main function is called "title" and you just call it like this: my $title = title ($url), without any nonsense.

Like it!

There is lots of talk in the module documentation and the bug list about how to get titles of things like PDF documents or even PNG images, but realistically how many people actually need that, compared to the number of people who just want the title of a web page? This already does 99% of the jobs that actually need to be done, and most PNG images don't even include a title field anyway.

Array-Contains (2.7) *

Requires perl 5.20 for no particular reason. Claims to be replacement of smart match but only covers string comparison. Just use List::Util's first() which is more flexible and part of the core Perl distribution, or match::smart which covers more cases.

Array-Unique (0.08) *

Mostly unnecessary because this is just a glorified form of a widely known Perl idiom. Requires perl 5.20 for no particular reason. Re-sorts the list which is 99% not what user wants. Just use List::Util's uniq() which is faster and part of core distribution.

JSON-Path (0.411) *****

Well written module, does exactly what I need it to do. Documentation is clear, and provides a link to the JSONPath specification. Author is receptive and responsive to issues, and has been able to turn around the few problems I've encountered very quickly. I appreciate the time and energy you've put into maintaining this.

Finance-QuoteHist (1.27) *****

Excellent module. Thanks for keeping up with changes to the services.

Data-GUID (0.049) *****

Update 2017: Due to library issues in CentOS 6 I am no longer using Data::GUID but writing against the supported rpm packaged version of Data::UUID in uuid-perl-1.6.1-10.el6.x86_64

my $uuid=Data::UUID->new;
my $guid=lc($uuid->create_str);

Text-Prefix-XS (0.15)

It uses a very fast algorithm to match an array of possible prefixes to an array of strings.

On the other hand, having examined the source code, it is very messy with lots of dangling unused items like the completely unused structure txs_vtbl or the unevaluated "len" in loops like "for (len;", there is a C function without a declared return value, there are misused Perl internal functions like misuse of "die" or "Newxz", and there are many failed tests due to simple causes like not including necessary files such as

#include <stdint.h>:

www.cpantesters.org/cpan/report/9766a...

The documentation is very patchy, so I would probably rather not use this, regardless of whether it is very fast or not.

Term-ProgressBar-Simple (0.03) *****

By far the easiest-to-use progress bar module. Does the right thing by default, and can be added to any script in just 3 lines of code.

Test-NoWarnings (1.04) *

Works great until some (even external) common dependency starts to output warnings, then all the tests starts to "fail". That's the point it gets really annoying instead of helpful. Warnings are there to warn that there *may* be something wrong and should not be test fails.

Dist-Zilla-Plugin-ReadmeFromPod (0.35) *

Has some problems, e.g. it uses InstallTool phase so it conflicts with DZP:StaticInstall when wanting to produce a static install distro. Use alternatives like the simpler DZP:Pod2Readme or the more complex DZP:ReadmeAnyFromPod.

Dist-Zilla-Plugin-Hook (v0.8.3) *****

Great for debugging. Just whip up some code in dist.ini to e.g. dump & print some stuffs, etc.

ExtUtils-TBone (1.124)

This might have been the bee's knees at one point but it's not been updated since 2001 and it has a tendency to break on modern versions of Perl. I suggest trying out Test::More rather than this.

Data-Validate-URI (0.07) *****

This seems to work well. Users should note that the "is_uri" function given in the synopsis is probably not really what you want, use the "is_web_uri" function instead.

The failed tests at CPAN testers are due to the use of a very old module from 2001 called ExtUtils::TBone to do the testing. If the author has time it would be great if this could be upgraded to use Test::More.

Search-WuManber (0.25)

In my tests, this is about the same speed as using a regular expression generated by list2re from Data::Munge or make_regex from my own module Convert::Moji, sometimes faster and sometimes slower. Here are a few typical results:

Data::Munge::list2re time: 0.188953876495361 #matches: 3365
Algorithm::AhoCorasick::XS time: 0.0855789184570312 #matches: 3365
Search::WuManber time: 0.353510141372681 #matches: 3365

Data::Munge::list2re time: 0.191490888595581 #matches: 3734
Algorithm::AhoCorasick::XS time: 0.0873630046844482 #matches: 3751
Search::WuManber time: 0.339526176452637 #matches: 3751

Data::Munge::list2re time: 2.37025308609009 #matches: 303173
Algorithm::AhoCorasick::XS time: 0.353744029998779 #matches: 308464
Search::WuManber time: 1.25165987014771 #matches: 308464

The script is available here:

www.lemoda.net/perl/test-algaho/index...

The output search results are the same as those of Algorithm::AhoCorasick::XS, but that module is much faster than this one.

So far I've reported four bugs in the module and got no response so it may not be being maintained any more.

rt.cpan.org/Dist/Display.html?Name=Se...

Given that it doesn't beat regexes, it has memory-related bugs, and has not been updated for years, I can't endorse this module.

Text-Scan (0.31)

It claims to be "Fast search for very large numbers of keys in a body of text", but this module is about three times slower than just using a regular expression like the one formed by list2re in Data::Munge, and it does not tell the position of the words in the string or the number of times they were found.

The interface is baffling. You put in a hash with keys and then it sends you back a hash with the same keys, except the keys of the return value are only for the words which matched. Why not just use a list, or return something useful like the position of the text in the string?

It also, for some reason, duplicates Perl's hash function within itself, complete with a keys and a values method.

Although it was last updated in 2010, the module claims that at one point a lot of people were using it. Maybe Perl regular expressions were slower in 2001 or whenever this module's heyday was, but in 2017 this module may no longer be relevant or useful.

Algorithm-AhoCorasick-XS (0.03) *****

In my tests, this module ran about three or more times faster than a regular expression formed using list2re from Data::Munge, and it gets the same results as Algorithm::AhoCorasick, so I would say this is a useful contribution, but the namespacing seems rather odd. It may be early days for this module, but I don't understand why this is called Algorithm::AhoCorasick::XS since it does not make any effort to implement a similar interface to Algorithm::AhoCorasick. This does basically the same thing as Text-Match-FastAlternatives except that, unlike that module, it covers the fairly obvious usage cases of telling the user the actual results obtained.

One other point to make: at the moment this seems to fail a lot of testing on CPAN testers but it installed correctly on my setup.

Text-Match-FastAlternatives (1.05)

This module tells me whether a line matches a list of words, but not what specific word it matches. From inspecting the source code, a huge amount of work seems to have gone into making the module, yet it's missing the two most obvious usage cases. First it has no way of telling me what word actually matched, out of the input list of words, and secondly it does not have the ability to scan text to find the words in multiple places.

The only possible time this module is at all useful is for scanning for a list of words when we don't care which of the words matched, like the "obscenity detector" given in the synopsis. Other than that, I can't see what this is for, so I cannot endorse it.