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33 lines
1.2 KiB
Fish
33 lines
1.2 KiB
Fish
# This function is intended to be used as a validation command for individual option specifications
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# given to the `argparse` command. It checks that the argument is a valid integer and optionally
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# whether it is in a reasonable range.
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function _validate_int --no-scope-shadowing
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# Note that we can't use ourself to validate the arguments to the --min and --max flags this
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# function recognizes.
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set -l options 'm-min=' 'x-max='
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argparse -n _argparse_validate_int $options -- $argv
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or return
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if not string match -qr '^-?\d+$' -- $_flag_value
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set -l msg (_ "%s: Value '%s' for flag '%s' is not an integer\n")
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printf $msg $_argparse_cmd $_flag_value $_flag_name
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return 1
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end
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if set -q _flag_min
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and test $_flag_value -lt $_flag_min
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set -l msg (_ "%s: Value '%s' for flag '%s' less than min allowed of '%s'\n")
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printf $msg $_argparse_cmd $_flag_value $_flag_name $_flag_min
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return 1
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end
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if set -q _flag_max
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and test $_flag_value -gt $_flag_max
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set -l msg (_ "%s: Value '%s' for flag '%s' greater than max allowed of '%s'\n")
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printf $msg $_argparse_cmd $_flag_value $_flag_name $_flag_max
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return 1
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end
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return 0
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end
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