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https://github.com/danog/docker-php-extension-installer.git
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50 lines
1.0 KiB
Bash
Executable File
50 lines
1.0 KiB
Bash
Executable File
#!/bin/sh
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# Reset the Internal Field Separator
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resetIFS() {
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IFS='
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'
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}
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# Check if a string is in a list of space-separated string
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#
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# Arguments:
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# $1: the string to be checked
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# $2: the string list
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#
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# Return:
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# 0 (true): if the string is in the list
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# 1 (false): if the string is not in the list
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stringInList() {
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resetIFS
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for stringInList_listItem in $2; do
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if test "$1" = "$stringInList_listItem"; then
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return 0
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fi
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done
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return 1
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}
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# Return the strings that are present in two space-separated strings
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#
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# Arguments:
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# $1: the first space-separated string
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# $2: the first second-separated string
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#
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# Output:
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# The space-separated list of strings that are present in both lists
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commonElements() {
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commonElements_result=''
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resetIFS
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for commonElements_inA in $1; do
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if stringInList "$commonElements_inA" "$2"; then
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if test -z "$commonElements_result"; then
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commonElements_result="$commonElements_inA"
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else
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commonElements_result="$commonElements_result $commonElements_inA"
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fi
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fi
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done
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echo "$commonElements_result"
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}
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