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authorUlrich Drepper <drepper@redhat.com>1999-01-18 09:22:51 +0000
committerUlrich Drepper <drepper@redhat.com>1999-01-18 09:22:51 +0000
commitd0d7d3824e562ac4033a0960257682c744c7bc61 (patch)
tree0b8e0a995d5042fe205357ff9c35ef1f91ad4d85 /manual/tsort.awk
parent37ce12d14c4d55fef2ca8c939f111bae05ac4eb8 (diff)
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Limited tsort replacement.
Diffstat (limited to 'manual/tsort.awk')
-rw-r--r--manual/tsort.awk46
1 files changed, 46 insertions, 0 deletions
diff --git a/manual/tsort.awk b/manual/tsort.awk
new file mode 100644
index 0000000000..8e77ffe4b6
--- /dev/null
+++ b/manual/tsort.awk
@@ -0,0 +1,46 @@
+#! /usr/bin/awk -f
+# Generate topologically sorted list of manual chapters.
+# (C) Copyright 1998, 1999 Free Software Foundation, Inc.
+# Written by Ulrich Drepper <drepper@cygnus.com>, 1998.
+
+BEGIN {
+  cnt = 0
+  dnt = 0
+}
+{
+  to[dnt] = $1
+  from[dnt] = $2
+  ++dnt
+  all[cnt++] = $1
+}
+END {
+  do {
+    moved = 0
+    for (i = 0; i < dnt; ++i) {
+      for (j = 0; j < cnt; ++j) {
+	if (all[j] == from[i]) {
+	  for (k = j + 1; k < cnt; ++k) {
+	    if (all[k] == to[i]) {
+	      break;
+	    }
+	  }
+	  if (k < cnt) {
+	    for (l = k - 1; l >= j; --l) {
+	      all[l + 1] = all[l]
+	    }
+	    all[j] = to[i]
+	    break;
+	  }
+	}
+      }
+      if (j < cnt) {
+	moved = 1
+	break
+      }
+    }
+  } while (moved)
+
+  for (i = 0; i < cnt; ++i) {
+    print all[i];
+  }
+}