Template:VideoGallery/sandbox/doc

What am I trying to accomplish in this template:VideoGallery's sandbox?

{{VideoGallery|{{#vardefineecho:videogallery|
https://www.youtube.com/watch?v=wjzv0KtDXOA Xenoblade JP 1 (Dolphin Emulator @ 720p)
https://www.youtube.com/watch?v=tJtCp8rPXWg Xenoblade PAL 1 [Dolphin Emulator @ 1080p]
http://www.dailymotion.com/video/x1k9hnl Cocoto Platform Jumper HD on Dolphin Emulator (Widescreen Hack) part1
https://www.youtube.com/watch?v=_VLNa9PKT0Y Xenoblade PAL 2 (Dolphin Emulator @ 720p)
https://www.youtube.com/watch?v=dp3QnvFn_Hc Xenoblade PAL 3 (Dolphin Emulator @ 720p)
}}}}

... to produce the familiar layout the VideoGallery has been doing. Compare below and #Legacy compatibility! Note the different random videos, the random logic in parameterless version are different and it may be an improvement.

• Xenoblade PAL 3 (Dolphin Emulator @ 720p)

• Xenoblade PAL 2 (Dolphin Emulator @ 720p)

• Xenoblade PAL 1 [Dolphin Emulator @ 1080p]

• Xenoblade JP 1 (Dolphin Emulator @ 720p)

Legacy compatibility

Videos like below still use the old template parameters, they will work fine. Non-YouTube videos are manually assigned with srv parameter to the correct service (apparently only DailyMotion) which is unlike in parameterless version.

{{VideoGallery/sandbox
|vid1=wjzv0KtDXOA|cap1=Xenoblade JP 1 (Dolphin Emulator @ 720p)
|vid2=tJtCp8rPXWg|cap2=Xenoblade PAL 1 [Dolphin Emulator @ 1080p]
|srv3=dailymotion|vid3=x1k9hnl|cap3=Cocoto Platform Jumper HD on Dolphin Emulator (Widescreen Hack) part1
|vid4=_VLNa9PKT0Y|cap4=Xenoblade PAL 2 (Dolphin Emulator @ 720p)
|vid5=dp3QnvFn_Hc|cap5=Xenoblade PAL 3 (Dolphin Emulator @ 720p)
}}

Xenoblade JP 1 (Dolphin Emulator @ 720p)

Cocoto Platform Jumper HD on Dolphin Emulator (Widescreen Hack) part1

Xenoblade PAL 3 (Dolphin Emulator @ 720p)

• Xenoblade PAL 1 [Dolphin Emulator @ 1080p]
• Xenoblade PAL 2 (Dolphin Emulator @ 720p)

Pros

• Parameterless to prevent typo or tampering.
• Reduce editing. Just copy/paste the video url and write caption!

Cons/Issues

• Requires {{#vardefineecho:videogallery|}} to avoid issues with equal sign ("=") in template. Fun fact, most video urls have equal sign!
• Listed ascending
• Video without caption will have erratic caption:

• Using unmatched (or perhaps any) double open square brackets breaks this template:

{{VideoGallery/sandbox|{{#vardefineecho:videogallery| https://www.youtube.com/watch?v=sam9lDWDvXE Xenoblade JP HD Gameplay 1A [[Dolphin Emulator @ 720p) }}}}