Adding another topic: presentation.

Now "extraction" topic is dedicated strictly to derivation of BGFs from various sources.
The "presentation" topic is for getting various info out of BGFs.
The "transformation" topic is still for BGF to BGF transformations.
The "convergence" topic is for using BGF to BGF transformations for grammar convergence.


git-svn-id: https://slps.svn.sourceforge.net/svnroot/slps@314 ab42f6e0-554d-0410-b580-99e487e6eeb2

shared/tools/bgf2bnf

@@ -0,0 +1,39 @@
+#!/bin/sh
+
+LOCAL=${PWD}
+cd `dirname $0`
+cd ../..
+SLPS=${PWD}
+cd ${LOCAL}
+
+if [ $# -eq 1 ]; then
+    OUTPUT=`basename $1 .bgf`.bnf
+elif [ $# -ne 2 ]; then
+    echo "This tool transforms XML BNF-like Grammar Format documents to EBNF dialect used in JLS."
+    echo "Usage: bgf2bnf <input-bgf-document> [<output-text>]"
+    exit 1
+elif [ ! -r $1 ]; then
+    echo "Oops: $1 not found or not readable."
+    exit 1
+else
+    OUTPUT=$2
+fi
+
+${SLPS}/shared/tools/xbgf ${SLPS}/topics/presentation/bgf2bnf/strips.xbgf $1 $1.noselectors > /dev/null
+if [ ! -r $1.noselectors ]; then
+    ${SLPS}/shared/tools/xbgf ${SLPS}/topics/presentation/bgf2bnf/stripl.xbgf $1 $1.nolabels > /dev/null
+    if [ -r $1.nolabels ]; then
+        mv $1.nolabels $1.stripped
+    else
+        cp $1 $1.stripped
+    fi
+else
+    ${SLPS}/shared/tools/xbgf ${SLPS}/topics/presentation/bgf2bnf/stripl.xbgf $1.noselectors $1.nolabels > /dev/null
+    if [ -r $1.nolabels ]; then
+        mv $1.nolabels $1.stripped
+    else
+        mv $1.noselectors $1.stripped
+    fi
+fi
+xsltproc ${SLPS}/shared/xsl/bgf2bnf.xslt $1.stripped > ${OUTPUT}
+rm -f $1.stripped $1.noselectors $1.nolabels

shared/tools/ldf2html

@@ -14,5 +14,5 @@ elif [ ! -r $1 ]; then
     echo "Oops: $1 not found or not readable."
     exit 1
 else
-    xsltproc ${SLPS}/shared/xsl/ldf2xhtml.xslt $1 | python ${SLPS}/topics/extraction/ldf2pdf/closemeta.py > $2
+    xsltproc ${SLPS}/shared/xsl/ldf2xhtml.xslt $1 | python ${SLPS}/topics/presentation/ldf2pdf/closemeta.py > $2
 fi

shared/xsl/bgf2bnf.xslt

@@ -0,0 +1,129 @@
+<xsl:stylesheet version = '1.0'
+    xmlns:xsl='http://www.w3.org/1999/XSL/Transform'
+    xmlns:bgf="http://planet-sl.org/bgf"
+    xmlns:xhtml="http://www.w3.org/1999/xhtml">
+
+  <xsl:output
+      method="text"
+      encoding="UTF-8"
+      omit-xml-declaration="yes"
+      />
+
+ <xsl:template match="/bgf:grammar">
+      <xsl:apply-templates select="./bgf:*"/>
+  </xsl:template>
+
+  <xsl:template match="bgf:production">
+    <xsl:value-of select="./nonterminal"/>
+    <xsl:text>:</xsl:text>
+    <xsl:choose>
+      <xsl:when test="./bgf:expression/choice">
+        <xsl:for-each select="./bgf:expression/choice/bgf:expression">
+          <xsl:text>
+        </xsl:text>
+          <xsl:apply-templates select="."/>
+        </xsl:for-each>
+        <xsl:text>
+</xsl:text>
+      </xsl:when>
+      <xsl:otherwise>
+        <xsl:text>
+          </xsl:text>
+        <xsl:apply-templates select="./bgf:expression"/>
+        <xsl:text>
+</xsl:text>
+      </xsl:otherwise>
+    </xsl:choose>
+  </xsl:template>
+
+  <xsl:template match="bgf:expression">
+    <xsl:apply-templates select="./*"/>
+  </xsl:template>
+
+  <xsl:template match="plus">
+    <xsl:apply-templates select="./*"/>
+    <xsl:text>{ </xsl:text>
+    <xsl:apply-templates select="./*"/>
+    <xsl:text>} </xsl:text>
+  </xsl:template>
+
+  <xsl:template match="star">
+    <xsl:text>{ </xsl:text>
+    <xsl:apply-templates select="./*"/>
+    <xsl:text>} </xsl:text>
+  </xsl:template>
+
+  <xsl:template match="optional">
+    <xsl:text>[ </xsl:text>
+    <xsl:apply-templates select="./*"/>
+    <xsl:text>] </xsl:text>
+  </xsl:template>
+
+  <xsl:template match="terminal">
+    <xsl:text>"</xsl:text>
+    <xsl:value-of select="."/>
+    <xsl:text>" </xsl:text>
+  </xsl:template>
+
+  <xsl:template match="value">
+    <xsl:choose>
+      <xsl:when test=". = 'string'">
+        <xsl:text>STRING </xsl:text>
+      </xsl:when>
+      <xsl:otherwise>
+        <xsl:text>INT </xsl:text>
+      </xsl:otherwise>
+    </xsl:choose>
+  </xsl:template>
+
+  <xsl:template match="epsilon">
+    <xsl:text>EPSILON </xsl:text>
+  </xsl:template>
+
+  <xsl:template match="empty">
+    <xsl:text>EMPTY </xsl:text>
+  </xsl:template>
+
+  <xsl:template match="any">
+    <xsl:text>ANY </xsl:text>
+  </xsl:template>
+
+  <xsl:template match="nonterminal">
+    <xsl:value-of select="."/>
+    <xsl:text> </xsl:text>
+  </xsl:template>
+
+  <xsl:template match="sequence">
+    <xsl:apply-templates select="./*"/>
+  </xsl:template>
+
+  <xsl:template match="choice">
+    <xsl:call-template name="car">
+      <xsl:with-param name="expr" select="./bgf:expression[1]"/>
+    </xsl:call-template>
+    <xsl:for-each select="./bgf:expression[position()>1]">
+      <xsl:call-template name="cdr">
+        <xsl:with-param name="expr" select="."/>
+      </xsl:call-template>
+    </xsl:for-each>
+  </xsl:template>
+
+  <xsl:template name="car">
+    <xsl:param name="expr"/>
+    <xsl:text>
+</xsl:text>
+    <xsl:apply-templates select="$expr/*"/>
+    <xsl:text>
+</xsl:text>
+  </xsl:template>
+
+  <xsl:template name="cdr">
+    <xsl:param name="expr"/>
+    <xsl:text>
+        </xsl:text>
+    <xsl:apply-templates select="$expr/*"/>
+    <xsl:text>
+</xsl:text>
+  </xsl:template>
+
+</xsl:stylesheet>

topics/presentation/bgf2bnf/Makefile

@@ -0,0 +1,12 @@
+all:
+	make clean
+	make test
+
+build:
+
+test:
+	find ../../fl/lci/snapshot/ -name "*.bgf" | xargs -n1 ../../../shared/tools/bgf2bnf
+	find ../../java/lci/snapshot/ -name "*.bgf" | xargs -n1 ../../../shared/tools/bgf2bnf
+
+clean:
+	rm -f *.bnf

topics/presentation/bgf2bnf/stripl.xbgf

@@ -0,0 +1,6 @@
+<xbgf:sequence
+  xmlns:xbgf="http://planet-sl.org/xbgf">
+  <xbgf:strip>
+    <allLabels/>
+  </xbgf:strip>
+</xbgf:sequence>

topics/presentation/bgf2bnf/strips.xbgf

@@ -0,0 +1,6 @@
+<xbgf:sequence
+  xmlns:xbgf="http://planet-sl.org/xbgf">
+  <xbgf:strip>
+    <allSelectors/>
+  </xbgf:strip>
+</xbgf:sequence>