summary: Correct rendering of classifications using equations

* src/current/include/calc-display.xsl (calc-iversons)[recurse]: Add
    parameter.  Conditionally recurse.
* src/current/summary.xsl (match-desc): Properly process c:* children.

src/current/include/calc-display.xsl

@@ -2,7 +2,7 @@
 <!--
   Handles calculation output in LaTeX format for styling by Mathjax
 
-  Copyright (C) 2016 LoVullo Associates, Inc.
+  Copyright (C) 2016, 2017 LoVullo Associates, Inc.
 
     This file is part of TAME.
 
@@ -631,6 +631,8 @@
   @return LaTeX equation
 -->
 <xsl:template match="c:eq|c:ne|c:gt|c:lt|c:gte|c:lte" mode="calc-iversons">
+  <xsl:param name="recurse" select="true()" />
+
   <xsl:variable name="name" select="local-name()" />
 
   <!-- map to LaTeX equivalent -->
@@ -646,7 +648,9 @@
   <xsl:value-of select="$map/*[ @id=$name ]" />
   <xsl:text> </xsl:text>
 
-  <xsl:apply-templates select="." mode="calc-recurse" />
+  <xsl:if test="$recurse">
+    <xsl:apply-templates select="." mode="calc-recurse" />
+  </xsl:if>
 </xsl:template>
 
 

src/current/summary.xsl

@@ -1348,11 +1348,45 @@
   <xsl:text> be </xsl:text>
 
   <xsl:text>\(</xsl:text>
-    <xsl:apply-templates select="./c:*" mode="calc-iversons" />
+    <xsl:apply-templates select="./c:*" mode="calc-iversons">
+      <xsl:with-param name="recurse" select="false()" />
+    </xsl:apply-templates>
+  <xsl:text>\) </xsl:text>
+
+  <xsl:apply-templates mode="match-desc"
+                       select="c:*/c:*" />
+</xsl:template>
+
+
+<xsl:template match="c:value-of" mode="match-desc" priority="5">
+  <xsl:variable name="name"
+                select="@name" />
+
+  <xsl:variable name="sym" as="element( preproc:sym )"
+                select="/lv:*/preproc:symtable/preproc:sym[ @name=$name ]" />
+
+  <a href="#{$name}" class="sym-ref sym-{$sym/@type}">
+    <xsl:value-of select="$name" />
+  </a>
+</xsl:template>
+
+
+<xsl:template match="c:const" mode="match-desc" priority="5">
+  <xsl:text>\(</xsl:text>
+  <xsl:value-of select="@value" />
   <xsl:text>\)</xsl:text>
 </xsl:template>
 
 
+<xsl:template match="c:*" mode="match-desc" priority="1">
+  <xsl:message terminate="yes">
+    <xsl:text>[summary] internal: unknown match calculation for `</xsl:text>
+    <xsl:value-of select="ancestor::c:classify/@as" />
+    <xsl:text>'</xsl:text>
+  </xsl:message>
+</xsl:template>
+
+
 <!--
   Output function details