<?xml version="1.0" encoding="UTF-8"?> | |
<!-- | |
xml2text.xsl - transform Bison XML Report into plain text. | |
Copyright (C) 2007-2012 Free Software Foundation, Inc. | |
This file is part of Bison, the GNU Compiler Compiler. | |
This program is free software: you can redistribute it and/or modify | |
it under the terms of the GNU General Public License as published by | |
the Free Software Foundation, either version 3 of the License, or | |
(at your option) any later version. | |
This program is distributed in the hope that it will be useful, | |
but WITHOUT ANY WARRANTY; without even the implied warranty of | |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
GNU General Public License for more details. | |
You should have received a copy of the GNU General Public License | |
along with this program. If not, see <http://www.gnu.org/licenses/>. | |
Written by Wojciech Polak <polak@gnu.org>. | |
--> | |
<xsl:stylesheet version="1.0" | |
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:apply-templates select="bison-xml-report"/> | |
</xsl:template> | |
<xsl:template match="bison-xml-report"> | |
<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="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="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="@name"/> | |
<xsl:text> </xsl:text> | |
</xsl:for-each> | |
<xsl:text> </xsl:text> | |
</xsl:if> | |
</xsl:template> | |
<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="@name"/> | |
<xsl:text> </xsl:text> | |
</xsl:for-each> | |
<xsl:text> </xsl:text> | |
</xsl:if> | |
</xsl:template> | |
<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="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: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:text> </xsl:text> | |
</xsl:template> | |
<xsl:template match="grammar/nonterminals"> | |
<xsl:text>Nonterminals, with rules where they appear </xsl:text> | |
<xsl:apply-templates select="nonterminal[@usefulness!='useless-in-grammar']"/> | |
</xsl:template> | |
<xsl:template match="terminal"> | |
<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="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="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:template> | |
<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(' ', $rr-count, ' reduce/reduce')"/> | |
</xsl:if> | |
<xsl:value-of select="' '"/> | |
</xsl:if> | |
</xsl:template> | |
<xsl:template match="automaton"> | |
<xsl:apply-templates select="state"> | |
<xsl:with-param name="pad" select="'3'"/> | |
</xsl:apply-templates> | |
</xsl:template> | |
<xsl:template match="automaton/state"> | |
<xsl:param name="pad"/> | |
<xsl:text> </xsl:text> | |
<xsl:text>State </xsl:text> | |
<xsl:value-of select="@number"/> | |
<xsl:text> </xsl:text> | |
<xsl:apply-templates select="itemset/item"> | |
<xsl:with-param name="pad" select="$pad"/> | |
</xsl:apply-templates> | |
<xsl:apply-templates select="actions/transitions"> | |
<xsl:with-param name="type" select="'shift'"/> | |
</xsl:apply-templates> | |
<xsl:apply-templates select="actions/errors"/> | |
<xsl:apply-templates select="actions/reductions"/> | |
<xsl:apply-templates select="actions/transitions"> | |
<xsl:with-param name="type" select="'goto'"/> | |
</xsl:apply-templates> | |
<xsl:apply-templates select="solved-conflicts"/> | |
</xsl:template> | |
<xsl:template match="actions/transitions"> | |
<xsl:param name="type"/> | |
<xsl:if test="transition[@type = $type]"> | |
<xsl:text> </xsl:text> | |
<xsl:apply-templates select="transition[@type = $type]"> | |
<xsl:with-param name="pad"> | |
<xsl:call-template name="max-width-symbol"> | |
<xsl:with-param name="node" select="transition[@type = $type]"/> | |
</xsl:call-template> | |
</xsl:with-param> | |
</xsl:apply-templates> | |
</xsl:if> | |
</xsl:template> | |
<xsl:template match="actions/errors"> | |
<xsl:if test="error"> | |
<xsl:text> </xsl:text> | |
<xsl:apply-templates select="error"> | |
<xsl:with-param name="pad"> | |
<xsl:call-template name="max-width-symbol"> | |
<xsl:with-param name="node" select="error"/> | |
</xsl:call-template> | |
</xsl:with-param> | |
</xsl:apply-templates> | |
</xsl:if> | |
</xsl:template> | |
<xsl:template match="actions/reductions"> | |
<xsl:if test="reduction"> | |
<xsl:text> </xsl:text> | |
<xsl:apply-templates select="reduction"> | |
<xsl:with-param name="pad"> | |
<xsl:call-template name="max-width-symbol"> | |
<xsl:with-param name="node" select="reduction"/> | |
</xsl:call-template> | |
</xsl:with-param> | |
</xsl:apply-templates> | |
</xsl:if> | |
</xsl:template> | |
<xsl:template match="item"> | |
<xsl:param name="pad"/> | |
<xsl:param name="prev-rule-number" | |
select="preceding-sibling::item[1]/@rule-number"/> | |
<xsl:apply-templates | |
select="key('bison:ruleByNumber', current()/@rule-number)" | |
> | |
<xsl:with-param name="itemset" select="'true'"/> | |
<xsl:with-param name="pad" select="$pad"/> | |
<xsl:with-param | |
name="prev-lhs" | |
select="key('bison:ruleByNumber', $prev-rule-number)/lhs[text()]" | |
/> | |
<xsl:with-param name="point" select="@point"/> | |
<xsl:with-param name="lookaheads"> | |
<xsl:apply-templates select="lookaheads"/> | |
</xsl:with-param> | |
</xsl:apply-templates> | |
</xsl:template> | |
<xsl:template match="rule"> | |
<xsl:param name="itemset"/> | |
<xsl:param name="pad"/> | |
<xsl:param name="prev-lhs"/> | |
<xsl:param name="point"/> | |
<xsl:param name="lookaheads"/> | |
<xsl:if test="$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="$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:call-template> | |
</xsl:when> | |
<xsl:otherwise> | |
<xsl:value-of select="lhs"/> | |
<xsl:text>:</xsl:text> | |
</xsl:otherwise> | |
</xsl:choose> | |
<!-- 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="$lookaheads"/> | |
</xsl:if> | |
<xsl:text> </xsl:text> | |
</xsl:template> | |
<xsl:template match="symbol"> | |
<xsl:text> </xsl:text> | |
<xsl:value-of select="."/> | |
</xsl:template> | |
<xsl:template match="empty"> | |
<xsl:text> /* empty */</xsl:text> | |
</xsl:template> | |
<xsl:template match="lookaheads"> | |
<xsl:text> [</xsl:text> | |
<xsl:apply-templates select="symbol"/> | |
<xsl:text>]</xsl:text> | |
</xsl:template> | |
<xsl:template match="lookaheads/symbol"> | |
<xsl:value-of select="."/> | |
<xsl:if test="position() != last()"> | |
<xsl:text>, </xsl:text> | |
</xsl:if> | |
</xsl:template> | |
<xsl:template match="transition"> | |
<xsl:param name="pad"/> | |
<xsl:text> </xsl:text> | |
<xsl:call-template name="rpad"> | |
<xsl:with-param name="str" select="string(@symbol)"/> | |
<xsl:with-param name="pad" select="number($pad) + 2"/> | |
</xsl:call-template> | |
<xsl:choose> | |
<xsl:when test="@type = 'shift'"> | |
<xsl:text>shift, and go to state </xsl:text> | |
<xsl:value-of select="@state"/> | |
</xsl:when> | |
<xsl:when test="@type = 'goto'"> | |
<xsl:text>go to state </xsl:text> | |
<xsl:value-of select="@state"/> | |
</xsl:when> | |
</xsl:choose> | |
<xsl:text> </xsl:text> | |
</xsl:template> | |
<xsl:template match="error"> | |
<xsl:param name="pad"/> | |
<xsl:text> </xsl:text> | |
<xsl:call-template name="rpad"> | |
<xsl:with-param name="str" select="string(@symbol)"/> | |
<xsl:with-param name="pad" select="number($pad) + 2"/> | |
</xsl:call-template> | |
<xsl:text>error</xsl:text> | |
<xsl:text> (</xsl:text> | |
<xsl:value-of select="text()"/> | |
<xsl:text>)</xsl:text> | |
<xsl:text> </xsl:text> | |
</xsl:template> | |
<xsl:template match="reduction"> | |
<xsl:param name="pad"/> | |
<xsl:text> </xsl:text> | |
<xsl:call-template name="rpad"> | |
<xsl:with-param name="str" select="string(@symbol)"/> | |
<xsl:with-param name="pad" select="number($pad) + 2"/> | |
</xsl:call-template> | |
<xsl:if test="@enabled = 'false'"> | |
<xsl:text>[</xsl:text> | |
</xsl:if> | |
<xsl:choose> | |
<xsl:when test="@rule = 'accept'"> | |
<xsl:text>accept</xsl:text> | |
</xsl:when> | |
<xsl:otherwise> | |
<xsl:text>reduce using rule </xsl:text> | |
<xsl:value-of select="@rule"/> | |
<xsl:text> (</xsl:text> | |
<xsl:value-of | |
select="key('bison:ruleByNumber', current()/@rule)/lhs[text()]"/> | |
<xsl:text>)</xsl:text> | |
</xsl:otherwise> | |
</xsl:choose> | |
<xsl:if test="@enabled = 'false'"> | |
<xsl:text>]</xsl:text> | |
</xsl:if> | |
<xsl:text> </xsl:text> | |
</xsl:template> | |
<xsl:template match="solved-conflicts"> | |
<xsl:if test="resolution"> | |
<xsl:text> </xsl:text> | |
<xsl:apply-templates select="resolution"/> | |
</xsl:if> | |
</xsl:template> | |
<xsl:template match="resolution"> | |
<xsl:text> Conflict between rule </xsl:text> | |
<xsl:value-of select="@rule"/> | |
<xsl:text> and token </xsl:text> | |
<xsl:value-of select="@symbol"/> | |
<xsl:text> resolved as </xsl:text> | |
<xsl:if test="@type = 'error'"> | |
<xsl:text>an </xsl:text> | |
</xsl:if> | |
<xsl:value-of select="@type"/> | |
<xsl:text> (</xsl:text> | |
<xsl:value-of select="."/> | |
<xsl:text>). </xsl:text> | |
</xsl:template> | |
<xsl:template name="max-width-symbol"> | |
<xsl:param name="node"/> | |
<xsl:variable name="longest"> | |
<xsl:for-each select="$node"> | |
<xsl:sort data-type="number" select="string-length(@symbol)" | |
order="descending"/> | |
<xsl:if test="position() = 1"> | |
<xsl:value-of select="string-length(@symbol)"/> | |
</xsl:if> | |
</xsl:for-each> | |
</xsl:variable> | |
<xsl:value-of select="$longest"/> | |
</xsl:template> | |
<xsl:template name="lpad"> | |
<xsl:param name="str" select="''"/> | |
<xsl:param name="pad" select="0"/> | |
<xsl:variable name="diff" select="$pad - string-length($str)" /> | |
<xsl:choose> | |
<xsl:when test="$diff < 0"> | |
<xsl:value-of select="$str"/> | |
</xsl:when> | |
<xsl:otherwise> | |
<xsl:call-template name="space"> | |
<xsl:with-param name="repeat" select="$diff"/> | |
</xsl:call-template> | |
<xsl:value-of select="$str"/> | |
</xsl:otherwise> | |
</xsl:choose> | |
</xsl:template> | |
<xsl:template name="rpad"> | |
<xsl:param name="str" select="''"/> | |
<xsl:param name="pad" select="0"/> | |
<xsl:variable name="diff" select="$pad - string-length($str)"/> | |
<xsl:choose> | |
<xsl:when test="$diff < 0"> | |
<xsl:value-of select="$str"/> | |
</xsl:when> | |
<xsl:otherwise> | |
<xsl:value-of select="$str"/> | |
<xsl:call-template name="space"> | |
<xsl:with-param name="repeat" select="$diff"/> | |
</xsl:call-template> | |
</xsl:otherwise> | |
</xsl:choose> | |
</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> |