global: remove unnecessary horizontal tabs.

This change was made by applying emacs' untabify function to
nearly all files in Bison's repository.  Required tabs in make
files, ChangeLog, regexps, and test code were manually skipped.
Other notable exceptions and changes are listed below.
* bootstrap: Skip because we sync this with gnulib.
* data/m4sugar/foreach.m4
* data/m4sugar/m4sugar.m4: Skip because we sync these with
Autoconf.
* djgpp: Skip because I don't know how to test djgpp properly, and
this code appears to be unmaintained anyway.
* README-hacking (Hacking): Specify that tabs should be avoided
where not required.

3 files changed, 97 insertions, 97 deletions

diff --git a/data/xslt/xml2dot.xsl b/data/xslt/xml2dot.xsl
index 100553b7..b1ddef4a 100644
--- a/data/xslt/xml2dot.xsl
+++ b/data/xslt/xml2dot.xsl
@@ -124,20 +124,20 @@
     <xsl:with-param name="dst" select="@state"/>
     <xsl:with-param name="style">
       <xsl:choose>
-	<xsl:when test="@symbol = 'error'">
-	  <xsl:text>dotted</xsl:text>
-	</xsl:when>
-	<xsl:when test="@type = 'shift'">
-	  <xsl:text>solid</xsl:text>
-	</xsl:when>
-	<xsl:otherwise>
-	  <xsl:text>dashed</xsl:text>
-	</xsl:otherwise>
+        <xsl:when test="@symbol = 'error'">
+          <xsl:text>dotted</xsl:text>
+        </xsl:when>
+        <xsl:when test="@type = 'shift'">
+          <xsl:text>solid</xsl:text>
+        </xsl:when>
+        <xsl:otherwise>
+          <xsl:text>dashed</xsl:text>
+        </xsl:otherwise>
       </xsl:choose>
     </xsl:with-param>
     <xsl:with-param name="label">
       <xsl:if test="not(@symbol = 'error')">
-	<xsl:value-of select="@symbol"/>
+        <xsl:value-of select="@symbol"/>
       </xsl:if>
     </xsl:with-param>
   </xsl:call-template>
diff --git a/data/xslt/xml2text.xsl b/data/xslt/xml2text.xsl
index a91b4a71..4bd119fc 100644
--- a/data/xslt/xml2text.xsl
+++ b/data/xslt/xml2text.xsl
@@ -253,9 +253,9 @@
     <xsl:text>&#10;</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:call-template name="max-width-symbol">
+          <xsl:with-param name="node" select="transition[@type = $type]"/>
+        </xsl:call-template>
       </xsl:with-param>
     </xsl:apply-templates>
   </xsl:if>
@@ -266,9 +266,9 @@
     <xsl:text>&#10;</xsl:text>
     <xsl:apply-templates select="error">
       <xsl:with-param name="pad">
-	<xsl:call-template name="max-width-symbol">
-	  <xsl:with-param name="node" select="error"/>
-	</xsl:call-template>
+        <xsl:call-template name="max-width-symbol">
+          <xsl:with-param name="node" select="error"/>
+        </xsl:call-template>
       </xsl:with-param>
     </xsl:apply-templates>
   </xsl:if>
@@ -279,9 +279,9 @@
     <xsl:text>&#10;</xsl:text>
     <xsl:apply-templates select="reduction">
       <xsl:with-param name="pad">
-	<xsl:call-template name="max-width-symbol">
-	  <xsl:with-param name="node" select="reduction"/>
-	</xsl:call-template>
+        <xsl:call-template name="max-width-symbol">
+          <xsl:with-param name="node" select="reduction"/>
+        </xsl:call-template>
       </xsl:with-param>
     </xsl:apply-templates>
   </xsl:if>
@@ -290,7 +290,7 @@
 <xsl:template match="item">
   <xsl:param name="pad"/>
   <xsl:param name="prev-rule-number"
-	     select="preceding-sibling::item[1]/@rule-number"/>
+             select="preceding-sibling::item[1]/@rule-number"/>
   <xsl:apply-templates
     select="key('bison:ruleByNumber', current()/@rule-number)"
   >
@@ -329,14 +329,14 @@
   <xsl:choose>
     <xsl:when test="$itemset != 'true' and $prev-lhs = lhs[text()]">
       <xsl:call-template name="lpad">
-	<xsl:with-param name="str" select="'|'"/>
-	<xsl:with-param name="pad" select="number(string-length(lhs[text()])) + 1"/>
+        <xsl:with-param name="str" select="'|'"/>
+        <xsl:with-param name="pad" select="number(string-length(lhs[text()])) + 1"/>
       </xsl:call-template>
     </xsl:when>
     <xsl:when test="$itemset = 'true' and $prev-lhs = lhs[text()]">
       <xsl:call-template name="lpad">
-	<xsl:with-param name="str" select="'|'"/>
-	<xsl:with-param name="pad" select="number(string-length(lhs[text()])) + 1"/>
+        <xsl:with-param name="str" select="'|'"/>
+        <xsl:with-param name="pad" select="number(string-length(lhs[text()])) + 1"/>
       </xsl:call-template>
     </xsl:when>
     <xsl:otherwise>
@@ -442,7 +442,7 @@
       <xsl:value-of select="@rule"/>
       <xsl:text> (</xsl:text>
       <xsl:value-of
-	  select="key('bison:ruleByNumber', current()/@rule)/lhs[text()]"/>
+          select="key('bison:ruleByNumber', current()/@rule)/lhs[text()]"/>
       <xsl:text>)</xsl:text>
     </xsl:otherwise>
   </xsl:choose>
@@ -479,9 +479,9 @@
   <xsl:variable name="longest">
     <xsl:for-each select="$node">
       <xsl:sort data-type="number" select="string-length(@symbol)"
-		order="descending"/>
+                order="descending"/>
       <xsl:if test="position() = 1">
-	<xsl:value-of select="string-length(@symbol)"/>
+        <xsl:value-of select="string-length(@symbol)"/>
       </xsl:if>
     </xsl:for-each>
   </xsl:variable>
@@ -498,7 +498,7 @@
     </xsl:when>
     <xsl:otherwise>
       <xsl:call-template name="space">
-	<xsl:with-param name="repeat" select="$diff"/>
+        <xsl:with-param name="repeat" select="$diff"/>
       </xsl:call-template>
       <xsl:value-of select="$str"/>
     </xsl:otherwise>
@@ -516,7 +516,7 @@
     <xsl:otherwise>
       <xsl:value-of select="$str"/>
       <xsl:call-template name="space">
-	<xsl:with-param name="repeat" select="$diff"/>
+        <xsl:with-param name="repeat" select="$diff"/>
       </xsl:call-template>
     </xsl:otherwise>
   </xsl:choose>
diff --git a/data/xslt/xml2xhtml.xsl b/data/xslt/xml2xhtml.xsl
index 2ffc964a..edac9bcc 100644
--- a/data/xslt/xml2xhtml.xsl
+++ b/data/xslt/xml2xhtml.xsl
@@ -31,32 +31,32 @@
 <xsl:import href="bison.xsl"/>
 
 <xsl:output method="xml" encoding="UTF-8"
-	    doctype-public="-//W3C//DTD XHTML 1.0 Strict//EN"
-	    doctype-system="http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"
-	    indent="yes"/>
+            doctype-public="-//W3C//DTD XHTML 1.0 Strict//EN"
+            doctype-system="http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"
+            indent="yes"/>
 
 <xsl:template match="/">
   <html>
     <head>
       <title>
-	<xsl:value-of select="bison-xml-report/filename"/>
-	<xsl:text> - GNU Bison XML Automaton Report</xsl:text>
+        <xsl:value-of select="bison-xml-report/filename"/>
+        <xsl:text> - GNU Bison XML Automaton Report</xsl:text>
       </title>
       <style type="text/css"><![CDATA[
       body {
         font-family: "Nimbus Sans L", Arial, sans-serif;
-	font-size: 9pt;
+        font-size: 9pt;
       }
       a:link {
-	color: #1f00ff;
-	text-decoration: none;
+        color: #1f00ff;
+        text-decoration: none;
       }
       a:visited {
-	color: #1f00ff;
-	text-decoration: none;
+        color: #1f00ff;
+        text-decoration: none;
       }
       a:hover {
-	color: red;
+        color: red;
       }
       #menu a {
         text-decoration: underline;
@@ -109,21 +109,21 @@
     <li>
       <a href="#reductions">Reductions</a>
       <ul class="lower-alpha">
-	<li><a href="#nonterminals_useless_in_grammar">Nonterminals useless in grammar</a></li>
-	<li><a href="#terminals_unused_in_grammar">Terminals unused in grammar</a></li>
-	<li><a href="#rules_useless_in_grammar">Rules useless in grammar</a></li>
-	<xsl:if test="grammar/rules/rule[@usefulness='useless-in-parser']">
-	  <li><a href="#rules_useless_in_parser">Rules useless in parser due to conflicts</a></li>
-	</xsl:if>
+        <li><a href="#nonterminals_useless_in_grammar">Nonterminals useless in grammar</a></li>
+        <li><a href="#terminals_unused_in_grammar">Terminals unused in grammar</a></li>
+        <li><a href="#rules_useless_in_grammar">Rules useless in grammar</a></li>
+        <xsl:if test="grammar/rules/rule[@usefulness='useless-in-parser']">
+          <li><a href="#rules_useless_in_parser">Rules useless in parser due to conflicts</a></li>
+        </xsl:if>
       </ul>
     </li>
     <li><a href="#conflicts">Conflicts</a></li>
     <li>
       <a href="#grammar">Grammar</a>
       <ul class="lower-alpha">
-	<li><a href="#grammar">Itemset</a></li>
-	<li><a href="#terminals">Terminal symbols</a></li>
-	<li><a href="#nonterminals">Nonterminal symbols</a></li>
+        <li><a href="#grammar">Itemset</a></li>
+        <li><a href="#terminals">Terminal symbols</a></li>
+        <li><a href="#nonterminals">Nonterminal symbols</a></li>
       </ul>
     </li>
     <li><a href="#automaton">Automaton</a></li>
@@ -154,9 +154,9 @@
   <xsl:if test="nonterminal[@usefulness='useless-in-grammar']">
     <p class="pre">
       <xsl:for-each select="nonterminal[@usefulness='useless-in-grammar']">
-	<xsl:text>   </xsl:text>
-	<xsl:value-of select="@name"/>
-	<xsl:text>&#10;</xsl:text>
+        <xsl:text>   </xsl:text>
+        <xsl:value-of select="@name"/>
+        <xsl:text>&#10;</xsl:text>
       </xsl:for-each>
       <xsl:text>&#10;&#10;</xsl:text>
     </p>
@@ -173,9 +173,9 @@
     <p class="pre">
       <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>&#10;</xsl:text>
+        <xsl:text>   </xsl:text>
+        <xsl:value-of select="@name"/>
+        <xsl:text>&#10;</xsl:text>
       </xsl:for-each>
       <xsl:text>&#10;&#10;</xsl:text>
     </p>
@@ -381,7 +381,7 @@
   <h3>
     <a>
       <xsl:attribute name="name">
-	<xsl:value-of select="concat('state_', @number)"/>
+        <xsl:value-of select="concat('state_', @number)"/>
       </xsl:attribute>
     </a>
     <xsl:text>state </xsl:text>
@@ -410,9 +410,9 @@
     <xsl:text>&#10;</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:call-template name="max-width-symbol">
+          <xsl:with-param name="node" select="transition[@type = $type]"/>
+        </xsl:call-template>
       </xsl:with-param>
     </xsl:apply-templates>
   </xsl:if>
@@ -423,9 +423,9 @@
     <xsl:text>&#10;</xsl:text>
     <xsl:apply-templates select="error">
       <xsl:with-param name="pad">
-	<xsl:call-template name="max-width-symbol">
-	  <xsl:with-param name="node" select="error"/>
-	</xsl:call-template>
+        <xsl:call-template name="max-width-symbol">
+          <xsl:with-param name="node" select="error"/>
+        </xsl:call-template>
       </xsl:with-param>
     </xsl:apply-templates>
   </xsl:if>
@@ -436,9 +436,9 @@
     <xsl:text>&#10;</xsl:text>
     <xsl:apply-templates select="reduction">
       <xsl:with-param name="pad">
-	<xsl:call-template name="max-width-symbol">
-	  <xsl:with-param name="node" select="reduction"/>
-	</xsl:call-template>
+        <xsl:call-template name="max-width-symbol">
+          <xsl:with-param name="node" select="reduction"/>
+        </xsl:call-template>
       </xsl:with-param>
     </xsl:apply-templates>
   </xsl:if>
@@ -447,7 +447,7 @@
 <xsl:template match="item">
   <xsl:param name="pad"/>
   <xsl:param name="prev-rule-number"
-	     select="preceding-sibling::item[1]/@rule-number"/>
+             select="preceding-sibling::item[1]/@rule-number"/>
   <xsl:apply-templates
     select="key('bison:ruleByNumber', current()/@rule-number)"
   >
@@ -477,7 +477,7 @@
   <xsl:if test="$itemset != 'true'">
     <a>
       <xsl:attribute name="name">
-	<xsl:value-of select="concat('rule_', @number)"/>
+        <xsl:value-of select="concat('rule_', @number)"/>
       </xsl:attribute>
     </a>
   </xsl:if>
@@ -486,19 +486,19 @@
   <xsl:choose>
     <xsl:when test="$itemset = 'true'">
       <a>
-	<xsl:attribute name="href">
-	  <xsl:value-of select="concat('#rule_', @number)"/>
-	</xsl:attribute>
-	<xsl:call-template name="lpad">
-	  <xsl:with-param name="str" select="string(@number)"/>
-	  <xsl:with-param name="pad" select="number($pad)"/>
-	</xsl:call-template>
+        <xsl:attribute name="href">
+          <xsl:value-of select="concat('#rule_', @number)"/>
+        </xsl:attribute>
+        <xsl:call-template name="lpad">
+          <xsl:with-param name="str" select="string(@number)"/>
+          <xsl:with-param name="pad" select="number($pad)"/>
+        </xsl:call-template>
       </a>
     </xsl:when>
     <xsl:otherwise>
       <xsl:call-template name="lpad">
-	<xsl:with-param name="str" select="string(@number)"/>
-	<xsl:with-param name="pad" select="number($pad)"/>
+        <xsl:with-param name="str" select="string(@number)"/>
+        <xsl:with-param name="pad" select="number($pad)"/>
       </xsl:call-template>
     </xsl:otherwise>
   </xsl:choose>
@@ -508,19 +508,19 @@
   <xsl:choose>
     <xsl:when test="$itemset != 'true' and $prev-lhs = lhs[text()]">
       <xsl:call-template name="lpad">
-	<xsl:with-param name="str" select="'|'"/>
-	<xsl:with-param name="pad" select="number(string-length(lhs[text()])) + 2"/>
+        <xsl:with-param name="str" select="'|'"/>
+        <xsl:with-param name="pad" select="number(string-length(lhs[text()])) + 2"/>
       </xsl:call-template>
     </xsl:when>
     <xsl:when test="$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()])) + 2"/>
+        <xsl:with-param name="str" select="'|'"/>
+        <xsl:with-param name="pad" select="number(string-length(lhs[text()])) + 2"/>
       </xsl:call-template>
     </xsl:when>
     <xsl:otherwise>
       <span class="i">
-	<xsl:value-of select="lhs"/>
+        <xsl:value-of select="lhs"/>
       </span>
       <xsl:text> &#8594;</xsl:text>
     </xsl:otherwise>
@@ -589,18 +589,18 @@
   <xsl:choose>
     <xsl:when test="@type = 'shift'">
       <a>
-	<xsl:attribute name="href">
-	  <xsl:value-of select="concat('#state_', @state)"/>
-	</xsl:attribute>
-	<xsl:value-of select="concat('shift, and go to state ', @state)"/>
+        <xsl:attribute name="href">
+          <xsl:value-of select="concat('#state_', @state)"/>
+        </xsl:attribute>
+        <xsl:value-of select="concat('shift, and go to state ', @state)"/>
       </a>
     </xsl:when>
     <xsl:when test="@type = 'goto'">
       <a>
-	<xsl:attribute name="href">
-	  <xsl:value-of select="concat('#state_', @state)"/>
-	</xsl:attribute>
-	<xsl:value-of select="concat('go to state ', @state)"/>
+        <xsl:attribute name="href">
+          <xsl:value-of select="concat('#state_', @state)"/>
+        </xsl:attribute>
+        <xsl:value-of select="concat('go to state ', @state)"/>
       </a>
     </xsl:when>
   </xsl:choose>
@@ -637,10 +637,10 @@
     </xsl:when>
     <xsl:otherwise>
       <a>
-	<xsl:attribute name="href">
-	  <xsl:value-of select="concat('#rule_', @rule)"/>
-	</xsl:attribute>
-	<xsl:value-of select="concat('reduce using rule ', @rule)"/>
+        <xsl:attribute name="href">
+          <xsl:value-of select="concat('#rule_', @rule)"/>
+        </xsl:attribute>
+        <xsl:value-of select="concat('reduce using rule ', @rule)"/>
       </a>
       <xsl:text> (</xsl:text>
       <xsl:value-of
@@ -687,9 +687,9 @@
   <xsl:variable name="longest">
     <xsl:for-each select="$node">
       <xsl:sort data-type="number" select="string-length(@symbol)"
-		order="descending"/>
+                order="descending"/>
       <xsl:if test="position() = 1">
-	<xsl:value-of select="string-length(@symbol)"/>
+        <xsl:value-of select="string-length(@symbol)"/>
       </xsl:if>
     </xsl:for-each>
   </xsl:variable>
@@ -706,7 +706,7 @@
     </xsl:when>
     <xsl:otherwise>
       <xsl:call-template name="space">
-	<xsl:with-param name="repeat" select="$diff"/>
+        <xsl:with-param name="repeat" select="$diff"/>
       </xsl:call-template>
       <xsl:value-of select="$str"/>
     </xsl:otherwise>
@@ -724,7 +724,7 @@
     <xsl:otherwise>
       <xsl:value-of select="$str"/>
       <xsl:call-template name="space">
-	<xsl:with-param name="repeat" select="$diff"/>
+        <xsl:with-param name="repeat" select="$diff"/>
       </xsl:call-template>
     </xsl:otherwise>
   </xsl:choose>