#!/bin/sh+
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+
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FILE="$1"+
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RES="$FILE"+
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+
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CUT_ARG="-b1"+
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if [ `uname -s` = "QNX" ]; then+
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    # QNX does not understand "-b1"+
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    CUT_ARG="-c1"+
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fi+
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+
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if [ `echo $FILE | cut $CUT_ARG` = "/" ]; then+
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    true+
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else+
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    RES="$PWD/$FILE"+
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    test -d "$RES" && RES="$RES/"+
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    RES=`echo "$RES" | sed "s,/\(\./\)*,/,g"`+
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+
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# note: this will only strip 1 /path/../ from RES, i.e. given /a/b/c/../../../, it returns /a/b/../../+
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    RES=`echo "$RES" | sed "s,\(/[^/]*/\)\.\./,/,g"` +
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+
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    RES=`echo "$RES" | sed "s,//,/,g" | sed "s,/$,,"`+
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fi+
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echo $RES #return+
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+
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