From 1f1fa3776c03b51f845d9d9f54cbc3c980f6ead6 Mon Sep 17 00:00:00 2001
From: Kristaps Dzonsons <kristaps@bsd.lv>
Date: Thu, 21 Jul 2011 23:30:39 +0000
Subject: Complete eqn.7 parsing.  Features all productions from the original
 1975 CACM paper in an LR(1) parse (1 -> eqn_rewind()).  Right now the code is
 a little jungly, but will clear up as I consolidate parse components. The AST
 structure will also be cleaned up, as right now it's pretty ad hoc (this
 won't change the parse itself).  I added the mandoc_strndup() function will
 here.

---
 eqn.7 | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

(limited to 'eqn.7')

diff --git a/eqn.7 b/eqn.7
index 0bf04700..4d00e89f 100644
--- a/eqn.7
+++ b/eqn.7
@@ -1,4 +1,4 @@
-.\"	$Id: eqn.7,v 1.12 2011/07/21 15:21:13 kristaps Exp $
+.\"	$Id: eqn.7,v 1.13 2011/07/21 23:30:39 kristaps Exp $
 .\"
 .\" Copyright (c) 2011 Kristaps Dzonsons <kristaps@bsd.lv>
 .\"
@@ -69,9 +69,14 @@ box     : text
         | UNDEF text
         | box pos box
         | box mark
+        | pile { list }
         | font box
         | SIZE text box
+        | LEFT text box [RIGHT text]
 text    : TEXT
+pile    : LPILE
+        | CPILE
+        | RPILE
 pos     : OVER
         | SUP
         | SUB
@@ -88,6 +93,7 @@ mark	: DOT
 font    : ROMAN
         | ITALIC
         | BOLD
+list    : eqn | list ABOVE eqn
 .Ed
 .Pp
 Data in TEXT form is a non-empty sequence of non-space characters or a
-- 
cgit v1.2.3-56-ge451