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20 lines
291 B
Bash
20 lines
291 B
Bash
#!/usr/bin/env sh
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is_strictly_false () {
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if [[ "$1" =~ '0|^[Ff][Aa][Ll][Ss][Ee]$|^[Nn][Oo]?$|^$' ]]
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then
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true
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else
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false
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fi
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}
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is_strictly_true () {
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if [[ "$1" =~ '1|^[Tt][Rr][Uu][Ee]$|^[Yy]([Ee][Ss])?$' ]]
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then
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# 0 as in "function ended successfully"
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true
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else
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false
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fi
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}
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