Posted by jpluimers on 2017/10/17
People love @TMSSoftwareNews because of the short bug-fix turnaround. In this case 2.5 hours: [WayBack] @jpluimers: @TMSsoftwareNews when entering a perfectly valid email address like word.word+tag.subtag@gmail.com: Please enter a valid Email Address.
–jeroen
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Posted by jpluimers on 2017/10/17
[WayBack] TMS Software | Blog | TEncryptedIniFile: easy to use class for handling app settings with encryption
via: [WayBack] A new blog has been posted:TEncryptedIniFile: easy to use class for handling app settings with encryption – Michael Thuma – Google+
I wonder how that works with encryption algorithms based on thin Delphi wrappers around proven open source encryption libraries.
–jeroen
PS: Note the G+ link died. Not sure why, but that’s why I archived the original as a WayBack link when writing this post.
Posted in Delphi, Development, Software Development | 4 Comments »
Posted by jpluimers on 2017/10/16
SourceTree 2.1 still doesn’t recognise that Beyond Compare is installed.
I noticed that on my Mac, Beyond Compare wasn’t able to edit diffed files when it had been started from SourceTree. This struck me as odd since on Windows this worked fine. So I did a bit of digging and found out both SourceTee and I screwed up:
Luckily [WayBack] Zoë Peterson (lead developer on Beyond Compare and formerly Turbo Power Abbrevia project admin) had answered this before, and all these show “Editing disabled” in the user-interface:
Beyond Compare will disable editing of a file any of the following reasons:
- It’s one of the input files in a 3-way merge
- The comparison was cancelled
- The comparison encountered an error (corrupt file, invalid character encoding, out of memory, gamma rays, etc)
- The file format’s conversion settings don’t support converting back to the original format (MS Word, PDF)
- The file is on a read-only “filesystem” (7zip/RAR/CHM archives, CD/DVD-ROMs)
- A file or parent folder had editing explicitly disabled by the user in the session settings or using the
/rocommand line switches- The viewer itself doesn’t support editing (eg, Hex Compare)
Source: [WayBack] version control – Beyond Compare 3 editing disabled – Stack Overflow
So the last instruction should be:
Set both
Visual Diff ToolandMerge TooltoOther, then set both theDiff CommandandMerge Commandto the value you obtained above (in my case/usr/local/bin/bcomp) and these arguments:
Diff Command Arguments
"$LOCAL" "$REMOTE"Merge Command Arguments
"$LOCAL" "$REMOTE" "$BASE" "$MERGED"
Note that somewhere during 2.2, SourceTree has added Beyond Compare integration and fixed some of the issues, but there are still issues left:
There is only one occasion where the UI does not show “Editing Disabled”, but where you cannot edit the file itself (you can only edit the current line in the line diff view at the bottom of the UI). Zoë mentioned that too:
…
Also, the Full Edit (F2) toggle in the Text Compare View menu switches between inline editing and line-based mode. If it’s disabled you can copy/delete whole lines and type in the line details edits at the bottom of the window, but the main windows won’t have a cursor, typing is disabled, and it will always select whole lines. Unlike the above items, this doesn’t show “Editing Disabled” in the status bar.
Source: [WayBack] version control – Beyond Compare 3 editing disabled – Stack Overflow
By default this setting is bound to the F2 key on Windows, so if you accidentally press that when Beyond Compare is active, you might be in for a surprise.
Screen shots:
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Posted by jpluimers on 2017/10/13
Sorry.This snapshot cannot be displayed due to an internal error.
When the Wayback Machine tries to display the archived https://plus.google.com/+KristianKöhntopp/posts/2yw9QFgCdtx which is about Unicode encoding horror.
The real horror? This used to work in the past.
Luckily it’s archived on https://archive.fo/b36gn
–jeroen
Later: credit where credit is due, as they fixed it:
[WayBack] WayBack didn’t respond to me, but instead fixed the archival of +Kristian Köhntopp’s G+ posts:… – Jeroen Wiert Pluimers – Google+
https://web.archive.org/web/*/https://plus.google.com/+KristianK%C3%B6hntopp/posts/*
Posted in Development, Encoding, Internet, InternetArchive, Power User, Software Development, WayBack machine | Leave a Comment »
Posted by jpluimers on 2017/10/12
Oh boy: [WayBack] Alles kaputt: In der Cloud gibt es keine Wände. – Kristian Köhntopp – Google+:
Two Amazon EC2 instances communicating over the CPU cache without the need of a network in-between them.
Open sourced foundations: IAIK/CJAG: CJAG is an open-source implementation of our cache-based jamming agreement.
In our BlackHat Asia 2017 Talk we show that the cache covert channel we built is so fast and reliable that we can do much more than tunneling SSH over it: We show that we can even stream a music video in decent quality through the cache – on the Amazon EC2 cloud.
See the BlackHat Asia Briefings Information here: https://www.blackhat.com/asia-17/brie…
See a video of the Live Demo here: https://www.youtube.com/watch?v=yPZmi…
Find our NDSS 2017 paper here: https://gruss.cc/files/hello.pdf
–jeroen
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Posted by jpluimers on 2017/10/12
I mentioned Asbjørn Heid on wiert.me before. While prepping for the Deadlock Empire workshop at EKON20, I needed a Delphi equivalent for the .NET [Way: Barrier Class (System.Threading)
The game uses that in level deadlockempire.github.io/#H4-Barrier [WayBack].
Edwin van der Kraan found the ThreadBarrier/ThreadBarrier.pas at master · lordcrc/ThreadBarrier implementation via [WayBack] Is there a way to create memory barriers in Delphi? Something like .NET’s System.Threading.Barrier class, java.util.concurrent.CyclicBarrier… – Horácio Filho – Google+
It’s from Asbjoørn who is known as lordcrc on GitHub. Cool stuff!
So yes, there is a Delphi version of If you thought you could do multi-threading, then play “The Deadlock Empire” games. You can find it at https://deadlockempire.4delphi.com/ There are two deadlockempire implementations there:
The workshop was great fun!
This is about a web game focussing on the concurrency issues in multi-threading environments. By the conference there will be a Delphi version of it. At the workshop we will play each round interactively: all attendees play the round followed by a short discussion. This is about collective learning, so the speakers will probably learn… Read More
Source: [Archive.is] If you thought you could do multi-threading, then play “The Deadlock Empire” games – Entwickler Konferenz
–jeroen
Posted in .NET, C#, Delphi, Delphi 10 Seattle, Delphi 10.1 Berlin (BigBen), Delphi XE, Delphi XE2, Delphi XE3, Delphi XE4, Delphi XE5, Delphi XE6, Delphi XE7, Delphi XE8, Development, Software Development | 1 Comment »
Posted by jpluimers on 2017/10/12
Using too many editors in too many environments, tabbed files usually kills my productivity.
Not just because the structure of the indented code, also because most editors are stupid enough to also use tabs beyond the indentation, for instance for carefully aligned initialisation statements.
Changing the tab-size effectively waves good bye to those.
It’s weird (Wiert loves that word) that HTML peeps even argue about tabs versus spaces:
Most people still use HTML for pixel perfect rendering and spaces help getting character perfect rendering of the source code.
I was glad to bump into [WayBack] Jefferson Lima answering this on Stack Overflow:
The Google HTML/CSS Style Guide and the W3School HTML(5) Style Guide recommend 2 spaces.
This article also brings an analysis of the effect of tabs vs spaces in the resulting file size.
Source: [WayBack] html5 – html indenting standard, tab or two spaces? – Stack Overflow
So: use 2 spacec for HTML indent.
It doesn’t really matter in transmitted size (minified compressed transfer difference is ~0% and the usual image bloat is way larger than the HTML anyway – just try www.webbloatscore.com and watch).
References:
- Indent by 2 spaces at a time.
- Don’t use tabs or mix tabs and spaces for indentation.
Source: [WayBack] Google HTML/CSS Style Guide
- Do not add blank lines without a reason.
- For readability, add blank lines to separate large or logical code blocks.
- For readability, add two spaces of indentation. Do not use the tab key.
- Do not use unnecessary blank lines and indentation. It is not necessary to indent every element.
Source: [WayBack] HTML5 Style Guide
Tabs Spaces Saving Raw file size 1403 bytes 1703 bytes 300 bytes/18% Raw file GZipped 327 bytes 332 bytes 5 bytes/1.5% Raw file minified 1199 bytes 1199 bytes 0 bytes/0% Minified & GZipped 312 bytes 312 bytes 0 bytes/0% When minified, it doesn’t matter if tabs or spaces are used, since they are all stripped away.
–jeroen
Posted in Development, HTML, Software Development, Web Development | Leave a Comment »
Posted by jpluimers on 2017/10/11
Yes there is; it’s the answer below. Note I needed to exclude false by adding a check value === false to the code below as that was a valid value for me.
You can just check if the variable has a
truthyvalue or not. That meansif( value ) { }will evaluate to
trueifvalueis not:
- null
- undefined
- NaN
- empty string (“”)
- 0
- false
The above list represents all possible
falsyvalues in ECMA-/Javascript. Find it in the specification at theToBooleansection.Furthermore, if you do not know whether a variable exists (that means, if it was declared) you should check with the
typeofoperator. For instanceif( typeof foo !== 'undefined' ) { // foo could get resolved and it's defined }If you can be sure that a variable is declared at least, you should directly check if it has a
truthyvalue like shown above.Further read: http://typeofnan.blogspot.com/2011/01/typeof-is-fast.html
Thanks to [WayBack] User jAndy – Stack Overflow who answered the above at [WayBack] Is there a standard function to check for null, undefined, or blank variables in JavaScript? – Stack Overflow.
–jeroen
Posted in Development, JavaScript/ECMAScript, Scripting, Software Development | Leave a Comment »
Posted by jpluimers on 2017/10/11
I’m a JavaScript n00b, so I like solutions like these:
Another solution:
function capitalizeFirstLetter(string) { return string.charAt(0).toUpperCase() + string.slice(1); }You could also add it to the
String.prototypeso you could chain it with other methods:String.prototype.capitalizeFirstLetter = function() { return this.charAt(0).toUpperCase() + this.slice(1); }and use it like this:
'string'.capitalizeFirstLetter() // String
Thanks [WayBack] Hutch Moore and [WayBack] Deviljho for answering at [WayBack] How do I make the first letter of a string uppercase in JavaScript? – Stack Overflow!
Note you can do it in CSS too as explained by [WayBack] sam6ber:
In CSS:
p:first-letter { text-transform:capitalize; }
–jeroen
Posted in CSS, Development, JavaScript/ECMAScript, Scripting, Software Development, Web Development | Leave a Comment »
Posted by jpluimers on 2017/10/10
Given a variable I: Integer, some people like Inc(I); others like I := I + 1;.
You might think that part of that discussion nowadays should be multithreading.
In practice this does not matter: the compiler will use the same instructions for both statements.
TL;DR: This might make you think they are always atomic. But that’s not always true, as the below differences show. In addition, it can also depend on your processor archicture.
In the Win32 Delphi Compiler, this is how they look:
Posted in Delphi, Delphi 10 Seattle, Delphi 10.1 Berlin (BigBen), Delphi XE3, Delphi XE4, Delphi XE5, Delphi XE6, Delphi XE7, Delphi XE8, Development, Software Development | 5 Comments »
The Wiert Corner - irregular stream of stuff 