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18 lines
537 B
Fish
18 lines
537 B
Fish
# Extract string between left and right separators of variable length.
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# @params <left-sep> [<right-sep>] <string>
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function msg.util.str.get
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set -l left $argv[1]
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set -l right $argv[1]
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set -l string $argv[2]
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if [ (count $argv) -gt 2 ]
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set right $argv[2]
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set string $argv[3]
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end
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set -l len (printf $left | awk '{print length}')
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# Match between outermost left / right separators.
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printf $string | sed "s/[^\\$left]*\(\\$left.*\\$right\)*/\1/g" | \
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sed "s/^.\{$len\}\(.*\).\{$len\}\$/\1/"
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end
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