arithmetic-command-substitution.zsh

#!/usr/bin/env zsh
# -------------------------------------------------------------------------------------------------
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# -------------------------------------------------------------------------------------------------
# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
# vim: ft=zsh sw=2 ts=2 et
# -------------------------------------------------------------------------------------------------

BUFFER=$': $(( $(echo 2) + 2 ))'

expected_region_highlight=(
  '1 1 builtin' # :
  '3 22 default' # $(( $(echo 2) + 2 ))
  '3 22 arithmetic-expansion' # $(( $(echo 2) + 2 ))
  '7 15 command-substitution-quoted' # $(echo 2)
  '7 8 command-substitution-delimiter-quoted' # $(
  '9 12 builtin' # echo
  '14 14 default' # 2
  '15 15 command-substitution-delimiter' # )
)