1

I stole Gilles Castel's snippet for automatic subscript, and I tried to extend it to automatically subscript an i or j that follows any character. Here is my attempt

snippet '([A-Za-z])(?:\d|[ij])' "auto subscript" wrA
`!p snip.rv = match.group(1)`_`!p snip.rv = match.group(2)`
endsnippet

This throws

IndexError: no such group
Executed snippet code: 
  1 > snip.rv = match.group(2)
  2

I do not know any Python, but I am hoping that this isn't a very tricky issue to solve. Any help is appreciated. Thank you.

1 Answer 1

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I believe the (?:...) makes the second sub-expression anonymous (you can't grab it with match.group).

I would try:

snippet '([A-Za-z])(\d|[ij])' "auto subscript" wrA
`!p snip.rv = match.group(1)`_`!p snip.rv = match.group(2)`
endsnippet
3
  • Yes, that works exactly as hoped. Thank you. Feb 18, 2023 at 15:30
  • 1
    Thanks for the feedback :-) If the solution works don't forgetting to validate it using v button next to the arrow voting buttons such that it can rest ;-) Feb 18, 2023 at 15:41
  • 1
    This broke my green tick and upvote virginity! Feb 18, 2023 at 19:10

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