Import libxo 0.1.4

Obtained from:	https://github.com/Juniper/libxo
Sponsored by:	Juniper Networks, Inc.

1 files changed, 62 insertions, 0 deletions

diff --git a/contrib/libxo/README.md b/contrib/libxo/README.md
new file mode 100644
index 0000000..40c162b
--- /dev/null
+++ b/contrib/libxo/README.md
@@ -0,0 +1,62 @@
+libxo
+=====
+
+libxo - A Library for Generating Text, XML, JSON, and HTML Output
+
+The libxo library allows an application to generate text, XML, JSON,
+and HTML output using a common set of function calls.  The application
+decides at run time which output style should be produced.  The
+application calls a function "xo_emit" to product output that is
+described in a format string.  A "field descriptor" tells libxo what
+the field is and what it means.
+
+```
+    xo_emit(" {:lines/%7ju/%ju} {:words/%7ju/%ju} "
+            "{:characters/%7ju/%ju}{d:filename/%s}\n",
+            linect, wordct, charct, file);
+```
+
+Output can then be generated in various style, using the "--libxo"
+option: 
+
+```
+    % wc /etc/motd
+          25     165    1140 /etc/motd
+    % wc --libxo xml,pretty,warn /etc/motd
+    <wc>
+      <file>
+        <filename>/etc/motd</filename>
+        <lines>25</lines>
+        <words>165</words>
+        <characters>1140</characters>
+      </file>
+    </wc>
+    % wc --libxo json,pretty,warn /etc/motd
+    {
+      "wc": {
+        "file": [
+          {
+            "filename": "/etc/motd",
+            "lines": 25,
+            "words": 165,
+            "characters": 1140
+          }
+        ]
+      }
+    }
+    % wc --libxo html,pretty,warn /etc/motd
+    <div class="line">
+      <div class="text"> </div>
+      <div class="data" data-tag="lines">     25</div>
+      <div class="text"> </div>
+      <div class="data" data-tag="words">    165</div>
+      <div class="text"> </div>
+      <div class="data" data-tag="characters">   1140</div>
+      <div class="text"> </div>
+      <div class="data" data-tag="filename">/etc/motd</div>
+    </div>
+```
+
+View the beautiful documentation at:
+
+http://juniper.github.io/libxo/libxo-manual.html