This is my first attempt to create a Perl script.

This script is to convert Markdown files to plain text ones, with some "common" typographic substitutions.

When I finish it, it is assumed to work as follows:

1. Single-hyphen dashes are replaced with three hyphens: that is, foo - bar is replaced with foo---bar
2. Markdown-style italic is replaced with Org Mode-style italic: that is, foo *bar* baz is replaced with foo /bar/ baz
3. Blank lines are replaced with first-line indents, that is:
   ``` FROM THIS This is a 500-character line of text.

   This is another 500-character line of text. ```

   TO THIS This is a 500-character line of text. This is another 500- character line of text.

4. Lines are hard-wrapped at 72 characters, and additionally:
5. Any single-letter word, such as "a" or "I", if it happened to be at the end of a hard-wrapped line, unless it is the last word in a paragraph, is moved to the next hard-wrapped line, that is:
   FROM THIS He knows that I love bananas.

   TO THIS He knows that I love bananas.

And now the first draft. Please don't laugh too loudly 😀

```

!/usr/bin/perl

perl -pi -e 's/ - /---/g' $1 # foo - bar to foo---bar perl -pi -e 's/*///g' $1 # foo to /foo/ perl -pi -e 's/\n{2}/\n /g' $1 # blank lines to first-line indents ```

The first two lines work fine.

But I really don't understand why the third line doesn't replace blank lines with first-line indents.

Also, maybe someone can point me to an existing Perl or Awk script that does all of this.

submitted by /u/No-Usual-9631
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Although this StackOverflow question about "islands and gaps" is titularly about Perl, the SQL answers are very nice. Apparently this is a FAQ for SQL.

However, this has bugged me for years on the CPAN side, but never enough to make me really do anthing about.

I thought there was a Perl module that did this, and it was in the context of a usenet reader that would take a list of article IDs, such as 1, 2, 3, 4, 5, 7, 10, 11, 15 and return something like 1-5,7,10-11,15 as a more space-efficient store of all the articles you had read.

Every time I've looked I've stopped after 15 minutes because I get distracted and I've never really needed this except to answer someone else's question. I'm not asking how to solve this because there are plenty of algorithm tutorials out there. Surely this is on CPAN somewhere.

There are plenty of options to go the other way and to ask if a number is in one of the ranges.

• Usenet was pre-web reddit, and comp.lang.perl and comp.lang.perl.misc are where I got my start in the Perl socials before there was "social".

submitted by /u/briandfoy
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I am new to this subreddit, but not new to Perl, though I've been flirting with Python for a little over two years so I'm a little out of the loop.

If I wanted to create a RESTful API using Catalyst and have my Swagger docs generated automatically, are there any toolchain recommendations that anyone can make?

Thanks.

submitted by /u/Biggity_Biggity_Bong
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This might be Perl/docker-perl#161 but if I filed this in the wrong place, let me know. Keeping these things current is the sort of thing I'd pay for.

Pulling perl images locally give the same warnings for old perl versions, although my local docker will still run them:

$ docker pull perl:5.14 5.14: Pulling from library/perl Image docker.io/library/perl:5.14 uses outdated schema1 manifest format. Please upgrade to a schema2 image for better future compatibility. More information at https://docs.docker.com/registry/spec/deprecated-schema-v1/ 

/usr/bin/docker pull perl:5.14 5.14: Pulling from library/perl [DEPRECATION NOTICE] Docker Image Format v1 and Docker Image manifest version 2, schema 1 support is disabled by default and will be removed in an upcoming release. Suggest the author of docker.io/library/perl:5.14 to upgrade the image to the OCI Format or Docker Image manifest v2, schema 2. More information at https://docs.docker.com/go/deprecated-image-specs/ Warning: Docker pull failed with exit code 1, back off 5.148 seconds before retry. /usr/bin/docker pull perl:5.14 5.14: Pulling from library/perl [DEPRECATION NOTICE] Docker Image Format v1 and Docker Image manifest version 2, schema 1 support is disabled by default and will be removed in an upcoming release. Suggest the author of docker.io/library/perl:5.14 to upgrade the image to the OCI Format or Docker Image manifest v2, schema 2. More information at https://docs.docker.com/go/deprecated-image-specs/ Warning: Docker pull failed with exit code 1, back off 4.06 seconds before retry. /usr/bin/docker pull perl:5.14 5.14: Pulling from library/perl [DEPRECATION NOTICE] Docker Image Format v1 and Docker Image manifest version 2, schema 1 support is disabled by default and will be removed in an upcoming release. Suggest the author of docker.io/library/perl:5.14 to upgrade the image to the OCI Format or Docker Image manifest v2, schema 2. More information at https://docs.docker.com/go/deprecated-image-specs/ Error: Docker pull failed with exit code 1 

 matrix: os: - ubuntu-22.04 perl-version: - '5.8' - '5.10' - '5.12' - '5.14' - '5.16' - '5.18' - '5.20' - '5.22' - '5.24' - '5.26' - '5.28' - '5.30' - '5.32' - '5.34' - '5.36' - 'latest' container: image: perl:${{ matrix.perl-version }} 

Mo utilities for email.

Changes for 0.02 - 2024-04-26T23:02:53+02:00

• Add tests for error parameters.
• Rewrite the tests so that the functional tests are first and then the errors.