docs: Include files are always searched at standard location, too.
This removes the need to specify the location where yml2 was unpacked or
installed as YML_PATH. So this now works:
YML_PATH=/foo ./yml2proc --xml2yml
The standard system location <prefix>/share/yml2 is now always appended to
the include search path. If this path does not exist, the directory one
above the `backend.py` file is added, allowing the same behaviour for
uninstalled yml2.
In the Makefile enforce the .ysl2 files to be searched in the current
directory first.
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"><xsl:output method="xml"/><xsl:variable name="space" select="' '"/><xsl:param name="autoindent" select="4"/><xsl:param name="x"/><xsl:template match="/"><xsl:param name="_indent" select="0"/><html><head><title>Customer List</title></head><body><xsl:apply-templates select="list"><xsl:with-param name="_indent" select="$_indent+1*$autoindent"/></xsl:apply-templates></body></html></xsl:template><xsl:template match="list"><xsl:param name="_indent" select="0"/><table><xsl:apply-templates select="customer"><xsl:with-param name="_indent" select="$_indent+1*$autoindent"/></xsl:apply-templates></table></xsl:template><xsl:template match="customer"><xsl:param name="_indent" select="0"/><tr><td><xsl:value-of select="$x"/></td><td><xsl:value-of select="id"/></td><td><xsl:value-of select="name"/></td></tr></xsl:template></xsl:stylesheet>