31 lines
1.0 KiB
Bash
Executable File
31 lines
1.0 KiB
Bash
Executable File
#!/usr/bin/env bash
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if [ "$ArrayUtilsVersion" ]; then return 0; fi
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readonly ArrayUtilsVersion="1.0"
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# Due to the fact we're passing arrays via indirection,
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# we've got to mangle variable names used within array
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# functions to prevent accidentally having a naming
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# conflic with an array, for example, an array with the
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# "choice" identifier in the input_choice function.
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# Eventually, input_choice's "choice" variable will
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# be indirectly expanded rather than the choice array.
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function array_contains() {
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local __array_contains__item
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# An efficient way to pass arrays around in bash
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# is to perform indirect expansion by using the
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# expansion symbol, $, along with the indirection
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# symbol, !, in curly braces, ${! }, resulting in:
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# function call: array_contains array[@] "text"
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# funct params: $1 = "array[@]" $2 = "text"
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# indirect exp: ${!1} => ${array[@]} (replaced!)
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for __array_contains__item in "${!1}"; do
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[[ "$__array_contains__item" == "$2" ]] && return 0
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done
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return 1 # Not found
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}
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# FLUXSCRIPT END
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