, 5 min read
In an article An open-source COBOL contender emerges a "real" compiler for COBOL was announced. This newly announced compiler is a frontend to gcc. This contrasts with GnuCOBOL, which translates COBOL to C and then calls gcc. As the performance of GnuCOBOL is a little bit disappointing,…
, 1 min read
This blog uses the Hiawatha web-server. Hiawatha is a lightweight web-server with special focus on security. Hiawatha offers, among other features, reverse proxy functionality and URL rewriting, see man page. Reverse proxy is configured by keyword ReverseProxy. Multiple reverse proxies may be…
, 1 min read
Task at hand: lowercase ca. half a million file names. The obvious solution would be to use the mv command together with tr to accomplish the job: for i in A B C ...; do mv $i `echo $i | tr '[A-Z]' '[a-z]'`; done Each file would spawn two processes: one for the tr and one for the mv itself. The…
, 5 min read
Task at hand: Convert IMS/DC MFS to PHP code. This is vaguely similar to the task that the MFS language utility DFSUPAA0 does. IMS/DC is a mainframe based transaction manager. MFS is an Assembler like description of the message format used in IMS/DC. Parse MFS using Perl: Screen layout is…
, 3 min read
As written in Generate RSS from Markdown extracting RSS from Markdown with frontmatter is simple. Now I took a slightly different approach and generate RSS from the HTML files directly. For this blog I still want an RSS feed. Simplified Saaze did not provide this functionality. Since 15-Aug-2022…
, 1 min read
End of May 2021 I moved my blog from WordPress to self hosted, see Moved Blog To eklausmeier.goip.de. Now after roughly half a year I regained ca. half of the visitors I had on WordPress. Contrary to some murky SEO advice Google does not honor "noindex". I have below HTML code in all my…
, 4 min read
1. Problem statement. When you have a blog you might want to engage with your readers by allowing them to comment on your posts. WordPress allows this out of the box. But when using a static site generator then having a commenting system is a bit more difficult. Many have resorted to Disqus. But…
, 1 min read
Internet adoption rates are phenomenal. I already mentioned in India is now the third largest Smartphone market in the world - Android Authority the massive growth in India. Above graphs are from Our World in Data: Technology Adoption written by Hannah Ritchie and Max Roser.
, 2 min read
When I moved away from WordPress to Saaze, see Moved Blog To eklausmeier.goip.de, I first used StatCounter to count how many times my blog posts were visited. Later I added Matomo, or Google Analytics, or Yandex Metrika. It turned out that all these counting mechanism use quite large JavaScript…
, 9 min read
1. Problem statement. When you run a web-server on your machine many bots and crawlers will visit. When analysing how many "real" visitors you have, you should therefore suppress these entries in your analysis from your log file of the web-server. This blog is served by Hiawatha…
, 3 min read
Hiawatha is a secure and reliable web-server. It is used for this blog. AWStats is a collection of Perl-scripts to analyze log-files from web-servers. By default, AWStats can read Apache log-files. It cannot directly read log-files from Hiawatha. The Hiawatha log-file format is: host, this is the…
, 1 min read
In trying to decrease load times of this blog, I noticed that the prism.js library requires quite a number of requests to the unpkg-server. So I tried to combine all these requests into only two. The results are quite impressive. I compared various measurements using tools.pingdom.com. Old…
, 3 min read
Zola is a static site generator written in Rust. Hugo is a static site generator written in Go. Simplified Saaze, Saaze for short, is written in PHP. Task: Compare run times of Saaze vs. Hugo vs Zola. I didn't find a direct comparison so far. There is a comparison of Eleventy vs. Gatsby vs. Hugo…
, 2 min read
I already described some changes I made to the original Saaze software: Moved Blog To eklausmeier.goip.de Calling MD4C from PHP via FFI Considerations Regarding Simplifications of Saaze Profiling PHP Programs In Making Static Site Generator 30-Times Faster I already described that removing…
, 33 min read
Introduction Installation Directory structure Basic usage 4.1 Static site generator 4.2 Dynamic content generation 4.3 Single file generation 4.4 Specifying an alternate build directory 4.5 Turning extract file generation on 4.6 Draft-mode 4.7 Parallel output 4.8 Stealth-mode 4.9…
, 1 min read
Task at hand: You receive daily reports with attachments, which you need to analyze programmatically. Therefore you want those attachments in your filesystem. You need an Outlook macro, which saves all those attachments to a directory. Outlook VBA to the rescue. Below macro processes all e-mails…
, 1 min read
Sometimes you have to copy whole directories recursively to an FTP-server. Many FTP servers are not able to handle bulk uploads directly. Here lftp comes to the rescue. lftp allows to upload or download entire directories irrespective of the capabilities of the FTP server. Assume we want to upload…
, 3 min read
Static site generators take Markdown files as input and generate HTML files. This way, when the end-user visits a website, all pages are already generated, and the web-server serves just plain HTML. No database is needed, no server-side script language is required. Two main advantages are easy to…
, 349 min read
Profiling a program is the process to measure how much CPU time a function uses, and also to count how many times this function was called. One very powerful profiler for PHP, XHProf, was initially developed by Facebook engineers. Facebook formerly used PHP very intensively. 1.…
, 3 min read
PECL is the PHP Extension Community Library. These extensions are written in C. Symfony is a PHP web application framework written in PHP. Initially I just wanted to reduce the dependencies in Saaze, so I installed PECL PHP package yaml. When I compared run-times between the original,…