mirror of
https://github.com/Jermolene/TiddlyWiki5
synced 2024-07-07 04:24:22 +00:00
16 lines
810 B
Plaintext
16 lines
810 B
Plaintext
|
created: 20150105133800000
|
||
|
|
modified: 20150105134300000
|
||
|
|
title: RailroadDiagrams
|
||
|
|
|
||
|
|
Railroad diagrams, sometimes called syntax diagrams, are a visual way of explaining the syntax rules of a computer language. Reading one is like reading a public transport map.
|
||
|
|
|
||
|
|
Each diagram starts on the left and ends on the right. Simply follow any line from the startpoint to the endpoint. All the alternative lines are equally valid. A line will sometimes jump over an item that is optional, or loop back to indicate that an item can be repeated.
|
||
|
|
|
||
|
|
<$railroad text="""
|
||
|
|
start [:optional] {repeated +","} end
|
||
|
|
"""/>
|
||
|
|
|
||
|
|
Characters in round boxes are literal, i.e. they denote themselves. A name in a rectangular box denotes a further railroad diagram.
|
||
|
|
|
||
|
|
The railroad diagrams on this site are generated using the [[Railroad Plugin]].
|