Creating Generic XSLT to parse Text file to XML - xslt-2.0

Question

I had been assigned a task to use XSLT to convert tons of text files into different XML. As I am extremely new to this, I took a shot at it myself.Here is what I've found that would do the trick: 1) XSLT started to support this in v2.0, and 2) unparsed-text() is the way to go
So I have finally got it working to parse a file into XML, but the method I used requires me to have an XSLT file per each text file(1 to 1) due to a lot of needed hardcoding for fucntions like xsl:analyze-string and I am now trying to find a way that can parse all of my files with just 1 generic XSLT. Please note that the text files might contain different patterns, but if I can find a way to generically parse more than 1 file(with similar patterns) then I will be happy.
Here are 2 sample files that I have:
***********
* Sample1
***********
SET: <block>
NAME: Name1 <string> /* some words/words */
!---end--- </block>
SET: <block>
NAME: Name2 <string>
NESTEDSET: <block>
VALUE1: FIRST <string>
---end---
NESTEDSET: <block>
VALUE1: SECOND <string>
VALUE2: ANYVALUE <string>
---end---
!---end--- </block>
and below are 2nd Sample file
**********
* Sample2
**********
NEW_SET: <block>
NAME: Set1 <string>
* Col1 Col2 Col3
ENTRY: 1 Win 0.2 <integer,string,floating>
ENTRY: 2 Win 0.3 <integer,string,floating>
ENTRY: 3 Lost 0.4 <integer,string,floating>
!--- end of block --- </block>
here is the xslt that I created for sample1:
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:xs="http://www.w3.org/2001/XMLSchema"
exclude-result-prefixes="xs"
version="2.0">
<xsl:output indent="yes"/>
<xsl:strip-space elements="*"/>
<xsl:variable name="sourcefile"
select="unparsed-text('file:///C:/Users/aUser/Desktop/Sample1.txt')"/>
<xsl:template name="text2xml">
<xsl:analyze-string select="translate(normalize-space($sourcefile), ' ',',')"
regex="SET:.*?!---end---" flags="s">
<xsl:matching-substring>
<SET>
<xsl:analyze-string select="." regex="(NAME):,([^,]*)">
<xsl:matching-substring>
<xsl:element name="{(regex-group(1))}">
<xsl:value-of select="(regex-group(2))"/>
</xsl:element>
</xsl:matching-substring>
</xsl:analyze-string>
<xsl:analyze-string select="."
regex="NESTEDSET.*?,---end---" flags="s">
<xsl:matching-substring>
<NESTEDSET>
<xsl:analyze-string select="."
regex="(VALUE1|VALUE2):,([^,]*)">
<xsl:matching-substring>
<xsl:element name="{(regex-group(1))}">
<xsl:value-of select="(regex-group(2))"/>
</xsl:element>
</xsl:matching-substring>
</xsl:analyze-string>
</NESTEDSET>
</xsl:matching-substring>
</xsl:analyze-string>
</SET>
</xsl:matching-substring>
</xsl:analyze-string>
</xsl:template>
<xsl:template match="/">
<xsl:call-template name="text2xml"/>
</xsl:template>
</xsl:stylesheet>
the xml output for this xslt is:
<?xml version="1.0" encoding="UTF-8"?>
<SET>
<NAME>Name1</NAME>
</SET>
<SET>
<NAME>Name2</NAME>
<NESTEDSET>
<VALUE1>FIRST</VALUE1>
</NESTEDSET>
<NESTEDSET>
<VALUE1>SECOND</VALUE1>
<VALUE2>ANYVALUE</VALUE2>
</NESTEDSET>
</SET>
May I ask if there is a better way to do this? to not hardcode anything and can create something generic that other files containing the same pattern can be used?
the way I am doing it(from my understanding) is that I am using unparsed-text() to force a text file into a single line then hardcoding a string(in regex) to tell it where to start/stop looking. so just want to look for a better way.
Thank you all for any suggestions/feedbacks.