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PortableGit/usr/share/awk/join.awk

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+# join.awk --- join an array into a string
+#
+# Arnold Robbins, arnold@skeeve.com, Public Domain
+# May 1993
+
+function join(array, start, end, sep,    result, i)
+{
+    if (sep == "")
+       sep = " "
+    else if (sep == SUBSEP) # magic value
+       sep = ""
+    result = array[start]
+    for (i = start + 1; i <= end; i++)
+        result = result sep array[i]
+    return result
+}