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update math to use the new argparse validation

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This commit is contained in:
Kurtis Rader 2017-07-18 15:03:08 -07:00
parent 4e1303823b
commit 69ecda5082
1 changed files with 3 additions and 8 deletions
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11
share/functions/math.fish
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@ -4,7 +4,7 @@ function math --description "Perform math calculations in bc"
set argv -- $argv
end
set -l options 'h/help' 's/scale=' '#-val'
set -l options 'h/help' 's/scale=!_validate_int --min=0' '#-val'
argparse -n math --stop-nonopt --min-args=1 $options -- $argv
or return
@ -14,13 +14,8 @@ function math --description "Perform math calculations in bc"
end
set -l scale 0 # default is integer arithmetic
if set -q _flag_scale
set scale $_flag_scale
if not string match -q -r '^\d+$' "$scale"
printf (_ "%s: Expected an integer to follow --scale") math >&2
return 2 # missing argument is an error
end
end
set -q _flag_scale
and set scale $_flag_scale
if set -q _flag_val
# The expression began with a negative number. Put it back in the expression.