Hypertalk - sgml/signature GitHub Wiki
- https://apple.fandom.com/wiki/HyperTalk
- http://www.memoryhole.net/~kyle/newwebsite/Curriculum_Vitae_files/hypertalk.pdf
- http://www.jaedworks.com/hypercard/HT-Masters/scripting.html
- http://web.csulb.edu/~murdock/hcindex.html
- https://www.dr-lex.be/software/hypercard.html
- https://news.ycombinator.com/item?id=16675180
- https://developers.slashdot.org/story/08/05/25/0153256/hypercard-what-could-have-been
From the HyperCard runtime's perspective, there is no difference between moving a text field on the card and typing into it; both operations simply change the state of the target object within the stack. Such changes are immediately saved when complete, so typing into a field causes that text to be stored to the stack's physical file.