<!--
xml2text.xsl - transform Bison XML Report into plain text.
- $Id$
- Copyright (C) 2007 Free Software Foundation, Inc.
+ Copyright (C) 2007-2011 Free Software Foundation, Inc.
This file is part of Bison, the GNU Compiler Compiler.
-->
<xsl:stylesheet version="1.0"
- xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
-
+ xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+ xmlns:bison="http://www.gnu.org/software/bison/">
+
+<xsl:import href="bison.xsl"/>
<xsl:output method="text" encoding="UTF-8" indent="no"/>
<xsl:template match="/">
</xsl:template>
<xsl:template match="bison-xml-report">
- <xsl:apply-templates select="reductions"/>
- <xsl:apply-templates select="rules-never-reduced"/>
- <xsl:apply-templates select="conflicts"/>
+ <xsl:apply-templates select="grammar" mode="reductions"/>
+ <xsl:apply-templates select="grammar" mode="useless-in-parser"/>
+ <xsl:apply-templates select="automaton" mode="conflicts"/>
<xsl:apply-templates select="grammar"/>
<xsl:apply-templates select="automaton"/>
</xsl:template>
-<xsl:template match="rules-never-reduced">
- <xsl:if test="rule">
- <xsl:text>Rules never reduced </xsl:text>
- <xsl:apply-templates select="rule">
- <xsl:with-param name="pad" select="'3'"/>
- </xsl:apply-templates>
- <xsl:text> </xsl:text>
- </xsl:if>
+<xsl:template match="grammar" mode="reductions">
+ <xsl:apply-templates select="nonterminals" mode="useless-in-grammar"/>
+ <xsl:apply-templates select="terminals" mode="unused-in-grammar"/>
+ <xsl:apply-templates select="rules" mode="useless-in-grammar"/>
</xsl:template>
-<xsl:template match="reductions">
- <xsl:apply-templates select="useless/nonterminals"/>
- <xsl:apply-templates select="unused/terminals"/>
- <xsl:apply-templates select="useless/rules"/>
-</xsl:template>
-
-<xsl:template match="useless/nonterminals">
- <xsl:if test="nonterminal">
- <xsl:text>Useless nonterminals </xsl:text>
- <xsl:for-each select="nonterminal">
+<xsl:template match="nonterminals" mode="useless-in-grammar">
+ <xsl:if test="nonterminal[@usefulness='useless-in-grammar']">
+ <xsl:text>Nonterminals useless in grammar </xsl:text>
+ <xsl:for-each select="nonterminal[@usefulness='useless-in-grammar']">
<xsl:text> </xsl:text>
- <xsl:value-of select="."/>
+ <xsl:value-of select="@name"/>
<xsl:text> </xsl:text>
</xsl:for-each>
<xsl:text> </xsl:text>
</xsl:if>
</xsl:template>
-<xsl:template match="useless/rules">
- <xsl:if test="rule">
- <xsl:text>Useless rules </xsl:text>
- <xsl:apply-templates select="rule">
- <xsl:with-param name="pad" select="'3'"/>
- </xsl:apply-templates>
- <xsl:text> </xsl:text>
- </xsl:if>
-</xsl:template>
-
-<xsl:template match="unused/terminals">
- <xsl:if test="terminal">
- <xsl:text>Terminals which are not used </xsl:text>
- <xsl:for-each select="terminal">
+<xsl:template match="terminals" mode="unused-in-grammar">
+ <xsl:if test="terminal[@usefulness='unused-in-grammar']">
+ <xsl:text>Terminals unused in grammar </xsl:text>
+ <xsl:for-each select="terminal[@usefulness='unused-in-grammar']">
+ <xsl:sort select="@symbol-number" data-type="number"/>
<xsl:text> </xsl:text>
- <xsl:value-of select="."/>
+ <xsl:value-of select="@name"/>
<xsl:text> </xsl:text>
</xsl:for-each>
<xsl:text> </xsl:text>
</xsl:if>
</xsl:template>
-<xsl:template match="conflicts">
- <xsl:if test="conflict">
- <xsl:apply-templates select="conflict"/>
+<xsl:template match="rules" mode="useless-in-grammar">
+ <xsl:variable name="set" select="rule[@usefulness='useless-in-grammar']"/>
+ <xsl:if test="$set">
+ <xsl:text>Rules useless in grammar </xsl:text>
+ <xsl:call-template name="style-rule-set">
+ <xsl:with-param name="rule-set" select="$set"/>
+ </xsl:call-template>
<xsl:text> </xsl:text>
</xsl:if>
</xsl:template>
-<xsl:template match="conflict">
- <xsl:text>State </xsl:text>
- <xsl:value-of select="@state"/>
- <xsl:text> conflicts: </xsl:text>
- <xsl:value-of select="@num"/>
- <xsl:text> </xsl:text>
- <xsl:value-of select="@type"/>
- <xsl:text> </xsl:text>
+<xsl:template match="grammar" mode="useless-in-parser">
+ <xsl:variable
+ name="set" select="rules/rule[@usefulness='useless-in-parser']"
+ />
+ <xsl:if test="$set">
+ <xsl:text>Rules useless in parser due to conflicts </xsl:text>
+ <xsl:call-template name="style-rule-set">
+ <xsl:with-param name="rule-set" select="$set"/>
+ </xsl:call-template>
+ <xsl:text> </xsl:text>
+ </xsl:if>
</xsl:template>
<xsl:template match="grammar">
<xsl:text>Grammar </xsl:text>
- <xsl:apply-templates select="rules/rule">
- <xsl:with-param name="pad" select="'3'"/>
- </xsl:apply-templates>
+ <xsl:call-template name="style-rule-set">
+ <xsl:with-param
+ name="rule-set" select="rules/rule[@usefulness!='useless-in-grammar']"
+ />
+ </xsl:call-template>
<xsl:text> </xsl:text>
<xsl:apply-templates select="terminals"/>
<xsl:apply-templates select="nonterminals"/>
</xsl:template>
+<xsl:template name="style-rule-set">
+ <xsl:param name="rule-set"/>
+ <xsl:for-each select="$rule-set">
+ <xsl:apply-templates select=".">
+ <xsl:with-param name="pad" select="'3'"/>
+ <xsl:with-param name="prev-lhs">
+ <xsl:if test="position()>1">
+ <xsl:variable name="position" select="position()"/>
+ <xsl:value-of select="$rule-set[$position - 1]/lhs"/>
+ </xsl:if>
+ </xsl:with-param>
+ </xsl:apply-templates>
+ </xsl:for-each>
+</xsl:template>
+
<xsl:template match="grammar/terminals">
<xsl:text>Terminals, with rules where they appear </xsl:text>
<xsl:apply-templates select="terminal"/>
<xsl:template match="grammar/nonterminals">
<xsl:text>Nonterminals, with rules where they appear </xsl:text>
- <xsl:apply-templates select="nonterminal"/>
+ <xsl:apply-templates select="nonterminal[@usefulness!='useless-in-grammar']"/>
</xsl:template>
<xsl:template match="terminal">
- <xsl:value-of select="@symbol"/>
- <xsl:value-of select="concat(' (', @type, ')')"/>
- <xsl:apply-templates select="rule"/>
- <xsl:text> </xsl:text>
+ <xsl:value-of select="@name"/>
+ <xsl:call-template name="line-wrap">
+ <xsl:with-param name="first-line-length">
+ <xsl:choose>
+ <xsl:when test="string-length(@name) > 66">0</xsl:when>
+ <xsl:otherwise>
+ <xsl:value-of select="66 - string-length(@name)" />
+ </xsl:otherwise>
+ </xsl:choose>
+ </xsl:with-param>
+ <xsl:with-param name="line-length" select="66" />
+ <xsl:with-param name="text">
+ <xsl:value-of select="concat(' (', @token-number, ')')"/>
+ <xsl:for-each select="key('bison:ruleByRhs', @name)">
+ <xsl:value-of select="concat(' ', @number)"/>
+ </xsl:for-each>
+ </xsl:with-param>
+ </xsl:call-template>
</xsl:template>
-<xsl:template match="terminal/rule">
- <xsl:text> </xsl:text>
- <xsl:value-of select="."/>
+<xsl:template match="nonterminal">
+ <xsl:value-of select="@name"/>
+ <xsl:value-of select="concat(' (', @symbol-number, ')')"/>
+ <xsl:text> </xsl:text>
+ <xsl:variable name="output">
+ <xsl:call-template name="line-wrap">
+ <xsl:with-param name="line-length" select="66" />
+ <xsl:with-param name="text">
+ <xsl:text> </xsl:text>
+ <xsl:if test="key('bison:ruleByLhs', @name)">
+ <xsl:text>on@left:</xsl:text>
+ <xsl:for-each select="key('bison:ruleByLhs', @name)">
+ <xsl:value-of select="concat(' ', @number)"/>
+ </xsl:for-each>
+ </xsl:if>
+ <xsl:if test="key('bison:ruleByRhs', @name)">
+ <xsl:if test="key('bison:ruleByLhs', @name)">
+ <xsl:text>, </xsl:text>
+ </xsl:if>
+ <xsl:text>on@right:</xsl:text>
+ <xsl:for-each select="key('bison:ruleByRhs', @name)">
+ <xsl:value-of select="concat(' ', @number)"/>
+ </xsl:for-each>
+ </xsl:if>
+ </xsl:with-param>
+ </xsl:call-template>
+ </xsl:variable>
+ <xsl:value-of select="translate($output, '@', ' ')" />
</xsl:template>
-<xsl:template match="nonterminal">
- <xsl:value-of select="@symbol"/>
- <xsl:value-of select="concat(' (', @type, ')')"/>
- <xsl:text> </xsl:text>
- <xsl:if test="left/rule">
- <xsl:text>on left:</xsl:text>
- </xsl:if>
- <xsl:apply-templates select="left/rule"/>
- <xsl:if test="left/rule and right/rule">
- <xsl:text>, </xsl:text>
- </xsl:if>
- <xsl:if test="right/rule">
- <xsl:text>on right:</xsl:text>
+<xsl:template match="automaton" mode="conflicts">
+ <xsl:variable name="conflict-report">
+ <xsl:apply-templates select="state" mode="conflicts"/>
+ </xsl:variable>
+ <xsl:if test="string-length($conflict-report) != 0">
+ <xsl:value-of select="$conflict-report"/>
+ <xsl:text> </xsl:text>
</xsl:if>
- <xsl:apply-templates select="right/rule"/>
- <xsl:text> </xsl:text>
</xsl:template>
-<xsl:template match="nonterminal/left/rule|nonterminal/right/rule">
- <xsl:text> </xsl:text>
- <xsl:value-of select="."/>
+<xsl:template match="state" mode="conflicts">
+ <xsl:variable name="conflict-counts">
+ <xsl:apply-templates select="." mode="bison:count-conflicts" />
+ </xsl:variable>
+ <xsl:variable
+ name="sr-count" select="substring-before($conflict-counts, ',')"
+ />
+ <xsl:variable
+ name="rr-count" select="substring-after($conflict-counts, ',')"
+ />
+ <xsl:if test="$sr-count > 0 or $rr-count > 0">
+ <xsl:value-of select="concat('State ', @number, ' conflicts:')"/>
+ <xsl:if test="$sr-count > 0">
+ <xsl:value-of select="concat(' ', $sr-count, ' shift/reduce')"/>
+ <xsl:if test="$rr-count > 0">
+ <xsl:value-of select="(',')"/>
+ </xsl:if>
+ </xsl:if>
+ <xsl:if test="$rr-count > 0">
+ <xsl:value-of select="concat(' ', $rr-count, ' reduce/reduce')"/>
+ </xsl:if>
+ <xsl:value-of select="' '"/>
+ </xsl:if>
</xsl:template>
<xsl:template match="automaton">
<xsl:text>state </xsl:text>
<xsl:value-of select="@number"/>
<xsl:text> </xsl:text>
- <xsl:apply-templates select="itemset/rule">
+ <xsl:apply-templates select="itemset/item">
<xsl:with-param name="pad" select="$pad"/>
</xsl:apply-templates>
<xsl:apply-templates select="actions/transitions">
</xsl:if>
</xsl:template>
+<xsl:template match="item">
+ <xsl:param name="pad"/>
+ <xsl:param name="prev-rule-number"
+ select="preceding-sibling::item[1]/@rule-number"/>
+ <xsl:apply-templates
+ select="key('bison:ruleByNumber', current()/@rule-number)"
+ >
+ <xsl:with-param name="itemset" select="'true'"/>
+ <xsl:with-param name="pad" select="$pad"/>
+ <xsl:with-param
+ name="prev-lhs"
+ select="key('bison:ruleByNumber', $prev-rule-number)/lhs[text()]"
+ />
+ <xsl:with-param name="point" select="@point"/>
+ <xsl:with-param name="lookaheads">
+ <xsl:apply-templates select="lookaheads"/>
+ </xsl:with-param>
+ </xsl:apply-templates>
+</xsl:template>
+
<xsl:template match="rule">
+ <xsl:param name="itemset"/>
<xsl:param name="pad"/>
- <xsl:if test="not(name(..) = 'itemset') and not(preceding-sibling::rule[1]/lhs[text()] = lhs[text()])">
+ <xsl:param name="prev-lhs"/>
+ <xsl:param name="point"/>
+ <xsl:param name="lookaheads"/>
+
+ <xsl:if test="$itemset != 'true' and not($prev-lhs = lhs[text()])">
<xsl:text> </xsl:text>
</xsl:if>
+
<xsl:text> </xsl:text>
<xsl:call-template name="lpad">
<xsl:with-param name="str" select="string(@number)"/>
<xsl:with-param name="pad" select="number($pad)"/>
</xsl:call-template>
<xsl:text> </xsl:text>
+
+ <!-- LHS -->
<xsl:choose>
- <xsl:when test="preceding-sibling::rule[1]/lhs[text()] = lhs[text()]">
+ <xsl:when test="$itemset != 'true' and $prev-lhs = lhs[text()]">
+ <xsl:call-template name="lpad">
+ <xsl:with-param name="str" select="'|'"/>
+ <xsl:with-param name="pad" select="number(string-length(lhs[text()])) + 1"/>
+ </xsl:call-template>
+ </xsl:when>
+ <xsl:when test="$itemset = 'true' and $prev-lhs = lhs[text()]">
<xsl:call-template name="lpad">
<xsl:with-param name="str" select="'|'"/>
<xsl:with-param name="pad" select="number(string-length(lhs[text()])) + 1"/>
<xsl:text>:</xsl:text>
</xsl:otherwise>
</xsl:choose>
- <xsl:apply-templates select="rhs/symbol|rhs/point|rhs/empty"/>
- <xsl:apply-templates select="lookaheads"/>
+
+ <!-- RHS -->
+ <xsl:for-each select="rhs/*">
+ <xsl:if test="position() = $point + 1">
+ <xsl:text> .</xsl:text>
+ </xsl:if>
+ <xsl:if test="$itemset = 'true' and name(.) != 'empty'">
+ <xsl:apply-templates select="."/>
+ </xsl:if>
+ <xsl:if test="$itemset != 'true'">
+ <xsl:apply-templates select="."/>
+ </xsl:if>
+ <xsl:if test="position() = last() and position() = $point">
+ <xsl:text> .</xsl:text>
+ </xsl:if>
+ </xsl:for-each>
+ <xsl:if test="$lookaheads">
+ <xsl:value-of select="$lookaheads"/>
+ </xsl:if>
+
<xsl:text> </xsl:text>
</xsl:template>
<xsl:value-of select="."/>
</xsl:template>
-<xsl:template match="point">
- <xsl:text> .</xsl:text>
-</xsl:template>
-
<xsl:template match="empty">
<xsl:text> /* empty */</xsl:text>
</xsl:template>
<xsl:value-of select="@rule"/>
<xsl:text> (</xsl:text>
<xsl:value-of
- select="/bison-xml-report/grammar/rules/rule[@number = current()/@rule]/lhs[text()]"/>
+ select="key('bison:ruleByNumber', current()/@rule)/lhs[text()]"/>
<xsl:text>)</xsl:text>
</xsl:otherwise>
</xsl:choose>
</xsl:if>
</xsl:template>
+<xsl:template name="line-wrap">
+ <xsl:param name="line-length"/> <!-- required -->
+ <xsl:param name="first-line-length" select="$line-length"/>
+ <xsl:param name="text"/> <!-- required -->
+ <xsl:choose>
+ <xsl:when test="normalize-space($text) = ''" />
+ <xsl:when test="string-length($text) <= $first-line-length">
+ <xsl:value-of select="concat($text, ' ')" />
+ </xsl:when>
+ <xsl:otherwise>
+ <xsl:variable name="break-pos">
+ <xsl:call-template name="ws-search">
+ <xsl:with-param name="text" select="$text" />
+ <xsl:with-param name="start" select="$first-line-length+1" />
+ </xsl:call-template>
+ </xsl:variable>
+ <xsl:value-of select="substring($text, 1, $break-pos - 1)" />
+ <xsl:text> </xsl:text>
+ <xsl:call-template name="line-wrap">
+ <xsl:with-param name="line-length" select="$line-length" />
+ <xsl:with-param
+ name="text" select="concat(' ', substring($text, $break-pos+1))"
+ />
+ </xsl:call-template>
+ </xsl:otherwise>
+ </xsl:choose>
+</xsl:template>
+
+<xsl:template name="ws-search">
+ <xsl:param name="text"/> <!-- required -->
+ <xsl:param name="start"/> <!-- required -->
+ <xsl:variable name="search-text" select="substring($text, $start)" />
+ <xsl:choose>
+ <xsl:when test="not(contains($search-text, ' '))">
+ <xsl:value-of select="string-length($text)+1" />
+ </xsl:when>
+ <xsl:otherwise>
+ <xsl:value-of
+ select="$start + string-length(substring-before($search-text, ' '))"
+ />
+ </xsl:otherwise>
+ </xsl:choose>
+</xsl:template>
+
</xsl:stylesheet>
projects / bison.git / blobdiff