added LICENSE

[helm.git] / helm / style / params.xsl

diff --git a/helm/style/params.xsl b/helm/style/params.xsl
index 034eeba978c574853e785f75d83990b596f68fbb..920cf50a51632684ada2343fcf0e022b82fe6ef3 100644 (file)
--- a/helm/style/params.xsl
+++ b/helm/style/params.xsl
@@ -1,5 +1,29 @@
 <?xml version="1.0"?>
 
+<!-- Copyright (C) 2000, HELM Team                                     -->
+<!--                                                                   -->
+<!-- This file is part of HELM, an Hypertextual, Electronic            -->
+<!-- Library of Mathematics, developed at the Computer Science         -->
+<!-- Department, University of Bologna, Italy.                         -->
+<!--                                                                   -->
+<!-- HELM 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 2    -->
+<!-- of the License, or (at your option) any later version.            -->
+<!--                                                                   -->
+<!-- HELM 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 HELM; if not, write to the Free Software               -->
+<!-- Foundation, Inc., 59 Temple Place - Suite 330, Boston,            -->
+<!-- MA  02111-1307, USA.                                              -->
+<!--                                                                   -->
+<!-- For details, see the HELM World-Wide-Web page,                    -->
+<!-- http://cs.unibo.it/helm/.                                         -->
+
 <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
                               xmlns:m="http://www.w3.org/1998/Math/MathML">
 
@@ -182,6 +206,58 @@
      </xsl:choose>
 </xsl:template>
 
+
+<!--***********************************************************************-->
+<!--  Insert a subscript if there is a number at the end of a ci element   -->
+<!--***********************************************************************-->
+
+<xsl:template name="insert_subscript">
+<xsl:param name="node_value" select="&quot;&quot;"/>
+<xsl:param name="current_pos" select="1"/>
+<xsl:param name="start_pos" select="0"/>
+    <xsl:choose>
+    <xsl:when test="$current_pos &lt;= string-length(string($node_value))">
+    <xsl:variable name="current_char"><xsl:value-of select="substring(string($node_value),$current_pos,1)"/></xsl:variable>
+     <xsl:choose>
+     <xsl:when test="(string($current_char) != &quot;0&quot;) and (string($current_char) != &quot;1&quot;) and (string($current_char) != &quot;2&quot;) and (string($current_char) != &quot;3&quot;) and (string($current_char) != &quot;4&quot;) and (string($current_char) != &quot;5&quot;) and (string($current_char) != &quot;6&quot;) and (string($current_char) !=  &quot;7&quot;) and (string($current_char) != &quot;8&quot;) and (string($current_char) != &quot;9&quot;)">
+      <xsl:choose> 
+      <xsl:when test="$start_pos != 0">
+       <xsl:call-template name="insert_subscript"><xsl:with-param name="node_value" select="$node_value"/><xsl:with-param name="current_pos" select="$current_pos + 1"/><xsl:with-param name="start_pos" select="0"/></xsl:call-template>
+      </xsl:when> 
+      <xsl:otherwise>
+       <xsl:call-template name="insert_subscript"><xsl:with-param name="node_value" select="$node_value"/><xsl:with-param name="current_pos" select="$current_pos + 1"/><xsl:with-param name="start_pos" select="$start_pos"/></xsl:call-template>
+      </xsl:otherwise>
+      </xsl:choose>
+     </xsl:when>
+     <xsl:otherwise>  
+      <xsl:choose>
+      <xsl:when test="$start_pos = 0">
+       <xsl:call-template name="insert_subscript"><xsl:with-param name="node_value" select="$node_value"/><xsl:with-param name="current_pos" select="$current_pos + 1"/><xsl:with-param name="start_pos" select="$current_pos"/></xsl:call-template>
+      </xsl:when>
+      <xsl:otherwise>
+       <xsl:call-template name="insert_subscript"><xsl:with-param name="node_value" select="$node_value"/><xsl:with-param name="current_pos" select="$current_pos + 1"/><xsl:with-param name="start_pos" select="$start_pos"/></xsl:call-template>
+      </xsl:otherwise>
+      </xsl:choose>      
+     </xsl:otherwise>
+     </xsl:choose>
+    </xsl:when>
+    <xsl:otherwise>
+     <xsl:choose>
+     <xsl:when test="$start_pos != 0">
+      <m:msub>
+       <m:mi><xsl:value-of select="substring(string($node_value),1,$start_pos -1)"/></m:mi>
+       <m:mn><xsl:value-of select="substring(string($node_value),$start_pos)"/></m:mn>
+       </m:msub>
+     </xsl:when>
+     <xsl:otherwise>
+      <xsl:value-of select="$node_value"/>
+     </xsl:otherwise>
+     </xsl:choose>
+    </xsl:otherwise>    
+    </xsl:choose>
+</xsl:template>
+
+
 </xsl:stylesheet>