From aa83d77271f0d2be72067058f78abd1780f3b69e Mon Sep 17 00:00:00 2001
From: wkj <devnull@localhost>
Date: Mon, 17 May 2004 03:22:35 +0000
Subject: More troff bits; if you want them elsewhere, feel free to repo copy
 them.

---
 src/cmd/index/num.collapse | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 src/cmd/index/num.collapse

(limited to 'src/cmd/index/num.collapse')

diff --git a/src/cmd/index/num.collapse b/src/cmd/index/num.collapse
new file mode 100644
index 00000000..47203f52
--- /dev/null
+++ b/src/cmd/index/num.collapse
@@ -0,0 +1,21 @@
+awk ' # num.collapse
+#   Input:  lines of form: string (tab) num1 [(space) num2]
+#   Output: lines of form: string (tab) fancy.num.list
+#
+#   fancy.num.list contains items, separated by ", ", of form: num or num-num
+#	Sequence of input lines with same value of string is combined
+#	into a single output line.  Each input line contributes either
+#	num or num-num to output line.
+
+BEGIN	{ FS = OFS = "\t" }
+
+	{ sub(/ /, "\\(en", $2) }  # use - if there is no en dash
+
+$1 != p	{ p = $1
+	  if (NR > 1) printf "\n"
+	  printf "%s\t%s", $1, $2
+	  next
+	}
+	{ printf ", %s", $2 }
+END	{ if (NR > 0) printf "\n" }
+' $*
-- 
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