text/template: allow using -}} with many spaces

lexSpace consumed all spaces, even if the last one was part of a right
delimiter like " -}}". Thus, "3  -}}" wouldn't lex as "3" and a right
delimiter, but as "3", "-", and "}}".

To fix that, make lexSpace stop if it encounters a right delimiter.

Fixes #30948.

Change-Id: I80a5546e5809e54f6823e2bf3a57a7e8808329be
Reviewed-on: https://go-review.googlesource.com/c/go/+/168457
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
2 files changed
tree: bd3ebf0bee7f66d893e4a5a0a6e9416223ed1851
  1. .github/
  2. api/
  3. doc/
  4. lib/
  5. misc/
  6. src/
  7. test/
  8. .gitattributes
  9. .gitignore
  10. AUTHORS
  11. CONTRIBUTING.md
  12. CONTRIBUTORS
  13. favicon.ico
  14. LICENSE
  15. PATENTS
  16. README.md
  17. robots.txt
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