Make xml2dot.xsl and --graph produce the same output.

* data/xslt/xml2dot.xsl (xsl:template match="rule"): Use a `
'
instead of a `\n'.  That is, don't add escapes yet or they'll be doubly
escaped later.
(xsl:template name="output-node"): Use the new escape template instead
of the string-replace template directly.
(xsl:template name="output-edge"): Likewise.
(xsl:template name="escape"): New, escapes backslashes and newlines in
addition to quotation marks.
* src/graphviz.c (start_graph, output_node, output_edge): Add
whitespace to output for legibility.

Make xml2text.xsl and --report produce the same output, and remove the
XML "conflicts" element since a conflict summary is easily extracted
from the automaton.
* data/xslt/bison.xsl: New.
(xsl:template match="state" mode="bison:count-conflicts): New.
* data/xslt/xml2text.xsl: Import bison.xsl.
(xsl:template match="bison-xml-report"): Instead of styling the
"conflicts" element, style the "automaton" element with mode
"conflicts".  Unlike the former, the latter lists S/R and R/R
conflicts for a state on the same line.
(xsl:template match="conflicts"): Remove.
(xsl:template match="conflict"): Remove.
(xsl:template match="terminal"): Line-wrap the list of rules in which
the terminal is used.
(xsl:template match="nonterminal"): Likewise for nonterminals.
(xsl:template match="automaton" mode="conflicts"): New.
(xsl:template match="state" mode="conflicts"): New.
(xsl:template name="line-wrap"): New.
(xsl:template name="ws-search"): New.
* data/xslt/xml2xhtml.xsl: Import bison.xsl.
(xsl:template match="bison-xml-report"): Instead of styling the
"conflicts" element, style the "automaton" element with mode
"conflicts."
(xsl:template match="conflicts"): Remove.
(xsl:template match="conflict"): Remove.
(xsl:template match="automaton" mode="conflicts"): New.
(xsl:template match="state" mode="conflicts): New.
* src/conflicts.c (conflicts_output_xml): Remove.
* src/conflicts.h (conflicts_output_xml): Remove prototype.
* src/print-xml.c (print_xml): Don't invoke conflicts_output_xml.
* src/print.c (print_grammar): Consistently wrap at the 66th column so
the corresponding XSLT is easier.  Also, never wrap between a word and
the comma that follows it.

data/xslt/xml2dot.xsl

@@ -59,7 +59,7 @@
 </xsl:template>
 
 <xsl:template match="rule">
-  <xsl:text>\n</xsl:text>
+  <xsl:text>&#10;</xsl:text>
   <xsl:value-of select="lhs"/>
   <xsl:text> -&gt;</xsl:text>
   <xsl:apply-templates select="rhs/symbol|rhs/point|rhs/empty"/>
@@ -123,10 +123,8 @@
   <xsl:text>  </xsl:text>
   <xsl:value-of select="$number"/>
   <xsl:text> [label="</xsl:text>
-  <xsl:call-template name="string-replace">
+  <xsl:call-template name="escape">
     <xsl:with-param name="subject" select="$label"/>
-    <xsl:with-param name="search" select="'&quot;'"/>
-    <xsl:with-param name="replace" select="'\&quot;'"/>
   </xsl:call-template>
   <xsl:text>"]&#10;</xsl:text>
 </xsl:template>
@@ -144,36 +142,55 @@
   <xsl:value-of select="$style"/>
   <xsl:if test="$label and $label != ''">
     <xsl:text> label="</xsl:text>
-    <xsl:call-template name="string-replace">
+    <xsl:call-template name="escape">
       <xsl:with-param name="subject" select="$label"/>
-      <xsl:with-param name="search" select="'&quot;'"/>
-      <xsl:with-param name="replace" select="'\&quot;'"/>
     </xsl:call-template>
     <xsl:text>"</xsl:text>
   </xsl:if>
   <xsl:text>]&#10;</xsl:text>
 </xsl:template>
 
- <xsl:template name="string-replace">
-   <xsl:param name="subject"/>
-   <xsl:param name="search"/>
-   <xsl:param name="replace"/>
-   <xsl:choose>
-     <xsl:when test="contains($subject, $search)">
-       <xsl:variable name="before" select="substring-before($subject, $search)"/>
-       <xsl:variable name="after" select="substring-after($subject, $search)"/>
-       <xsl:value-of select="$before"/>
-       <xsl:value-of select="$replace"/>
-       <xsl:call-template name="string-replace">
-	 <xsl:with-param name="subject" select="$after"/>
-	 <xsl:with-param name="search" select="$search"/>
-	 <xsl:with-param name="replace" select="$replace"/>
-       </xsl:call-template>
-     </xsl:when> 
-     <xsl:otherwise>
-       <xsl:value-of select="$subject"/>  
-     </xsl:otherwise>
-   </xsl:choose>            
- </xsl:template>
+<xsl:template name="escape">
+  <xsl:param name="subject" required="yes"/>
+  <xsl:call-template name="string-replace">
+    <xsl:with-param name="subject">
+      <xsl:call-template name="string-replace">
+        <xsl:with-param name="subject">
+          <xsl:call-template name="string-replace">
+            <xsl:with-param name="subject" select="$subject"/>
+            <xsl:with-param name="search" select="'\'"/>
+            <xsl:with-param name="replace" select="'\\'"/>
+          </xsl:call-template>
+        </xsl:with-param>
+        <xsl:with-param name="search" select="'&quot;'"/>
+        <xsl:with-param name="replace" select="'\&quot;'"/>
+      </xsl:call-template>
+    </xsl:with-param>
+    <xsl:with-param name="search" select="'&#10;'"/>
+    <xsl:with-param name="replace" select="'\n'"/>
+  </xsl:call-template>
+</xsl:template>
+
+<xsl:template name="string-replace">
+  <xsl:param name="subject"/>
+  <xsl:param name="search"/>
+  <xsl:param name="replace"/>
+  <xsl:choose>
+    <xsl:when test="contains($subject, $search)">
+      <xsl:variable name="before" select="substring-before($subject, $search)"/>
+      <xsl:variable name="after" select="substring-after($subject, $search)"/>
+      <xsl:value-of select="$before"/>
+      <xsl:value-of select="$replace"/>
+      <xsl:call-template name="string-replace">
+        <xsl:with-param name="subject" select="$after"/>
+        <xsl:with-param name="search" select="$search"/>
+        <xsl:with-param name="replace" select="$replace"/>
+      </xsl:call-template>
+    </xsl:when> 
+    <xsl:otherwise>
+      <xsl:value-of select="$subject"/>  
+    </xsl:otherwise>
+  </xsl:choose>            
+</xsl:template>
 
 </xsl:stylesheet>