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1 files changed, 35 insertions, 0 deletions

diff --git a/sys/fio/nowhite.x b/sys/fio/nowhite.x
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+# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+
+include	<ctype.h>
+
+# NOWHITE -- Return the input string minus any whitespace or newlines,
+# returning a count of the number of nonwhite characters as the function value.
+
+int procedure nowhite (in, out, maxch)
+
+char	in[ARB]			# input string
+char	out[ARB]		# output string
+int	maxch			# max chars out
+
+int	ch
+int	ip, op
+
+begin
+	op = 1
+	do ip = 1, ARB {
+	    ch = in[ip]
+	    if (ch <= ' ') {
+		if (ch == EOS)
+		    break
+		else if (IS_WHITE(ch) || ch == '\n')
+		    next
+	    }
+	    if (op > maxch)
+		break
+	    out[op] = ch
+	    op = op + 1
+	}
+
+	out[op] = EOS
+	return (op - 1)
+end