diff --git a/XmacsLabs/X202307.tm b/XmacsLabs/X202307.tm
index 5dab14e..0e7bfbf 100644
--- a/XmacsLabs/X202307.tm
+++ b/XmacsLabs/X202307.tm
@@ -8,7 +8,7 @@
 
     <assign|x_0|<macro|<math|x<rsub|0>>>>
 
-    <assign|x_1|<macro|<math|x<rsub|1>>>>
+    <assign|x_1|<math|x<rsub|1>>>
 
     <assign|dlink|<macro|name|<hlink|[<arg|name>]|<merge|<arg|name>|.tm>>>>
   </hide-preamble>
@@ -17,16 +17,87 @@
 
   <section|Welcome>
 
-  \;
+  <chinese|<\description>
+    <item*|\<#5F20\>Z>
+
+    <item*|\<#521A\>\<#624D\>\<#5F88\>\<#62B1\>\<#6B49\>>
+
+    word\<#517C\>\<#5BB9\>\<#FF1F\>
+
+    \<#9519\>\<#8BEF\>\<#8F93\>\<#5165\>\<#5B8F\>\<#5982\>\<#4F55\>\<#91CD\>\<#65B0\>\<#7F16\>\<#8F91\>\<#FF1F\>
+
+    \<#7A7A\>\<#7F13\>\<#51B2\>\<#533A\>\<#7684\>\<#6807\>\<#9898\>\<#6709\>\<#4E2A\>\<#6570\>\<#5B57\>\<#4E00\>\<#76F4\>\<#589E\>\<#52A0\>\<#FF0C\>\<#8FD9\>\<#662F\>\<#600E\>\<#4E48\>\<#56DE\>\<#4E8B\>\<#FF1F\>
+
+    \<#5173\>\<#95ED\>\<#7F16\>\<#8F91\>\<#5668\>\<#65F6\>\<#FF0C\>\<#63D0\>\<#793A\>\<#6846\>\<#4E09\>\<#4E2A\>\<#6309\>\<#94AE\>\<#4E2D\>\<#FF0C\>\<#5426\>\<#548C\>\<#53D6\>\<#6D88\>\<#6709\>\<#4EC0\>\<#4E48\>\<#533A\>\<#522B\>\<#FF1F\>
+  </description>>
 
   <section|Topic: Unicode support>
 
   <subsection|tmu format>
 
   <\itemize>
+    <item>Encoding of tm file depends on language field of metadata.
+
     <item>legacy mogan document detection
 
+    <\itemize>
+      <item>based on tm format in ascii encoding
+
+      <item>extended to utf-8 encoding
+
+      <item>used in mogan 1.1.x, with option
+    </itemize>
+
     <item>tmu specification
+
+    <\itemize>
+      <item>avoid confusing with existing tm file.
+
+      <item>deal with encoding is complicated, and may cause serious damage
+      of data.
+
+      <item>need test to stablize then set to default format, so it may take
+      a long period.
+
+      tmu format\ 
+
+      <item>it is hard for user to mask data and detect bug.
+
+      <item>iterate from legacy format\ 
+
+      <\itemize>
+        <item>the format of tmu in 1.2.3 should be the same as 1.2.1.
+      </itemize>
+
+      <item>optimization for git diff
+
+      <\itemize>
+        <item>add command-line differ and add to git during installation.
+
+        <item>move blob to end of tmu file
+      </itemize>
+    </itemize>
+
+    <item>stm format with unicode support.
+  </itemize>
+
+  <subsection|Unicode char table>
+
+  <\itemize>
+    <item>programly generated by scm
+
+    <item>test performance of table
+
+    <item>test unicode support
+
+    <item>equivation between tag and unicode codepoint, like texmacs and
+    <TeXmacs>.
+
+    <\itemize>
+      <item><verbatim|\<less\>unicode\|xxx_emoji\<gtr\>>
+
+      <item>as is now, need further investigation.
+    </itemize>
   </itemize>
 
   <subsection|Inner implemention of unicode string>
@@ -35,6 +106,12 @@
     <item>scheme support of unicode
 
     <item>inner encoding of unicode string
+
+    <item>unicode dataset handling
+
+    <\itemize>
+      <item>generated unit test
+    </itemize>
   </itemize>
 
   <subsection|Unicode handling at user interface>
@@ -42,17 +119,143 @@
   <\itemize>
     <item>Unicode normalization during input.
 
+    <\itemize>
+      <item>after unicode table generation.
+
+      <item>emoji support.
+    </itemize>
+
     <item>Handling of chinese numerals and roman numerals.
 
+    <\itemize>
+      <item>blocker - <verbatim|ts> format
+
+      <item>texmacs scheme?
+    </itemize>
+
     <item>File system and file metadata.
 
+    <\itemize>
+      <item>OSPP interest
+    </itemize>
+
     <item>CJK word count.
 
+    finish this, then this can service for several years until major change
+    of scheme implementation.
+
     <item>IME related problems.
+
+    <\itemize>
+      <item>IME with qt, IME on different system.
+
+      qt handling of IME message.
+
+      <item>integrated in IME, rime, progress after tab completion.
+    </itemize>
+  </itemize>
+
+  <subsection|texmacs programming language>
+
+  <\itemize>
+    <item>scheme (s7 scheme)
+
+    <item>Jolly scheme (created by Joris?)
+
+    <\itemize>
+      <item>extension for legacy scheme
+
+      <item><scm|tm-define>, <scm|tm-module>, visiblity
+
+      <item>compatible with R7RS? in plugin scope but not in core scope.
+    </itemize>
+
+    <item>Jolly scheme with glue symbols.
+
+    <\itemize>
+      <item>call cpp in scm code, foreign function interface
+
+      <item>secure context
+    </itemize>
+
+    <item><verbatim|.ts> language
+
+    <\itemize>
+      <item>template language
+
+      <item>primitive hard coded in drd
+
+      <item>act like jsonnet or wikipedia template language
+
+      <\itemize>
+        <item>wikipedia use lua instead of template language
+      </itemize>
+
+      <item>hard to use and hard to maintain
+    </itemize>
+
+    <item><verbatim|.stm> format
+
+    <\itemize>
+      <item>S-tree, can be used in scheme
+
+      <item>suggested as markup language on internet, like stex in chez
+      scheme package.
+
+      <item>has the same utf support issue as <verbatim|.tm> file.
+    </itemize>
+
+    <item><verbatim|.tmml> format
+
+    <\itemize>
+      <item>can be safely ignored
+
+      <item>based on xml format
+
+      <item>will be removed in fulture
+    </itemize>
   </itemize>
 
   <section|Discussion>
 
+  <\question>
+    word\<#517C\>\<#5BB9\>\<#FF1F\>
+
+    <\answer*>
+      word\<#662F\>\<#538B\>\<#7F29\>\<#7684\>\<#4E13\>\<#6709\>\<#683C\>\<#5F0F\>\<#3002\>\<#58A8\>\<#5E72\>\<#5BFC\>\<#51FA\>\<#5230\>
+
+      word\<#590D\>\<#5236\>\<#7C98\>\<#8D34\>\<#65F6\>\<#FF0C\>\<#4F1A\>\<#63D0\>\<#4F9B\>html\<#683C\>\<#5F0F\>\<#7684\>\<#7247\>\<#6BB5\>\<#3002\>
+    </answer*>
+  </question>
+
+  <\question>
+    \<#9519\>\<#8BEF\>\<#8F93\>\<#5165\>\<#5B8F\>\<#5982\>\<#4F55\>\<#91CD\>\<#65B0\>\<#7F16\>\<#8F91\>\<#FF1F\>
+
+    <\answer*>
+      \<#91C7\>\<#7528\>\<#64A4\>\<#9500\>\<#529F\>\<#80FD\>\<#FF0C\>\<#6216\>\<#8005\>ctrl+z\<#3002\>
+    </answer*>
+  </question>
+
+  <\question>
+    \<#7A7A\>\<#7F13\>\<#51B2\>\<#533A\>\<#7684\>\<#6807\>\<#9898\>\<#6709\>\<#4E2A\>\<#6570\>\<#5B57\>\<#4E00\>\<#76F4\>\<#589E\>\<#52A0\>\<#FF0C\>\<#8FD9\>\<#662F\>\<#600E\>\<#4E48\>\<#56DE\>\<#4E8B\>\<#FF1F\>
+
+    <\answer*>
+      \<#8FD9\>\<#4E2A\>\<#6570\>\<#5B57\>\<#6307\>\<#7684\>\<#662F\>\<#58A8\>\<#5E72\>\<#5907\>\<#4EFD\>\<#6587\>\<#6863\>\<#7684\>\<#6570\>\<#91CF\>\<#3002\>\<#9000\>\<#51FA\>\<#58A8\>\<#5E72\>\<#65F6\>\<#FF0C\>\<#58A8\>\<#5E72\>\<#4F1A\>\<#5907\>\<#4EFD\>\<#672A\>\<#5B58\>\<#76D8\>\<#7684\>\<#6587\>\<#4EF6\>\<#3002\>
+
+      \<#5F53\>\<#7F13\>\<#51B2\>\<#533A\>\<#4E3A\>\<#7A7A\>\<#7684\>\<#65F6\>\<#5019\>\<#FF0C\>\<#4E0D\>\<#5E94\>\<#8BE5\>\<#4EA7\>\<#751F\>\<#5907\>\<#4EFD\>\<#6587\>\<#4EF6\>\<#3002\>
+
+      \<#6DFB\>\<#52A0\>\<#83DC\>\<#5355\>\<#9879\>\<#FF0C\>\<#4F7F\>\<#7528\>\<#6237\>\<#6253\>\<#5F00\>\<#5B58\>\<#653E\>\<#5907\>\<#4EFD\>\<#6587\>\<#4EF6\>\<#7684\>\<#76EE\>\<#5F55\>\<#3002\>
+    </answer*>
+  </question>
+
+  <\question>
+    \<#5173\>\<#95ED\>\<#7F16\>\<#8F91\>\<#5668\>\<#65F6\>\<#FF0C\>\<#63D0\>\<#793A\>\<#6846\>\<#4E09\>\<#4E2A\>\<#6309\>\<#94AE\>\<#4E2D\>\<#FF0C\>\<#5426\>\<#548C\>\<#53D6\>\<#6D88\>\<#6709\>\<#4EC0\>\<#4E48\>\<#533A\>\<#522B\>\<#FF1F\>
+
+    <\answer*>
+      \<#6CA1\>\<#6709\>\<#533A\>\<#522B\>\<#FF0C\>\<#5E94\>\<#8BE5\>\<#6539\>\<#8FDB\>\<#3002\>
+    </answer*>
+  </question>
+
   \;
 
   \;
@@ -73,70 +276,50 @@
 <\references>
   <\collection>
     <associate|auto-1|<tuple|1|2>>
-    <associate|auto-10|<tuple|3|4>>
-    <associate|auto-11|<tuple|4|5>>
     <associate|auto-2|<tuple|2|2>>
     <associate|auto-3|<tuple|2.1|2>>
-    <associate|auto-4|<tuple|2.2|2>>
+    <associate|auto-4|<tuple|2.2|3>>
     <associate|auto-5|<tuple|2.3|3>>
-    <associate|auto-6|<tuple|3|3>>
-    <associate|auto-7|<tuple|2.2|4>>
-    <associate|auto-8|<tuple|2.3|4>>
-    <associate|auto-9|<tuple|2.4|4>>
+    <associate|auto-6|<tuple|2.4|4>>
+    <associate|auto-7|<tuple|2.5|4>>
+    <associate|auto-8|<tuple|3|6>>
   </collection>
 </references>
 
 <\auxiliary>
   <\collection>
-    <\associate|figure>
-      <tuple|normal|<\surround|<hidden-binding|<tuple>|1>|>
-        An navigation template on Wikipedia, displaying items divided into
-        several categories. The community of wikipedia is trying to use
-        wikidata for it.
-      </surround>|<pageref|auto-4>>
-
-      <tuple|normal|<\surround|<hidden-binding|<tuple>|2>|>
-        Table generated from knowledge graph on Wikipedia.
-      </surround>|<pageref|auto-5>>
-    </associate>
-    <\associate|table>
-      <tuple|normal|<\surround|<hidden-binding|<tuple>|1>|>
-        Some tasks of mogan project. This table can be managed with some data
-        structure rather than table.
-      </surround>|<pageref|auto-6>>
-    </associate>
     <\associate|toc>
       <vspace*|1fn><with|font-series|<quote|bold>|math-font-series|<quote|bold>|1<space|2spc>Welcome>
       <datoms|<macro|x|<repeat|<arg|x>|<with|font-series|medium|<with|font-size|1|<space|0.2fn>.<space|0.2fn>>>>>|<htab|5mm>>
       <no-break><pageref|auto-1><vspace|0.5fn>
 
       <vspace*|1fn><with|font-series|<quote|bold>|math-font-series|<quote|bold>|2<space|2spc>Topic:
-      Mechanism to manage tm files> <datoms|<macro|x|<repeat|<arg|x>|<with|font-series|medium|<with|font-size|1|<space|0.2fn>.<space|0.2fn>>>>>|<htab|5mm>>
+      Unicode support> <datoms|<macro|x|<repeat|<arg|x>|<with|font-series|medium|<with|font-size|1|<space|0.2fn>.<space|0.2fn>>>>>|<htab|5mm>>
       <no-break><pageref|auto-2><vspace|0.5fn>
 
-      <with|par-left|<quote|1tab>|2.1<space|2spc>document lookup and
-      classification <datoms|<macro|x|<repeat|<arg|x>|<with|font-series|medium|<with|font-size|1|<space|0.2fn>.<space|0.2fn>>>>>|<htab|5mm>>
+      <with|par-left|<quote|1tab>|2.1<space|2spc>tmu format
+      <datoms|<macro|x|<repeat|<arg|x>|<with|font-series|medium|<with|font-size|1|<space|0.2fn>.<space|0.2fn>>>>>|<htab|5mm>>
       <no-break><pageref|auto-3>>
 
-      <with|par-left|<quote|1tab>|2.2<space|2spc>project of embedded code and
-      session <datoms|<macro|x|<repeat|<arg|x>|<with|font-series|medium|<with|font-size|1|<space|0.2fn>.<space|0.2fn>>>>>|<htab|5mm>>
+      <with|par-left|<quote|1tab>|2.2<space|2spc>Unicode char table
+      <datoms|<macro|x|<repeat|<arg|x>|<with|font-series|medium|<with|font-size|1|<space|0.2fn>.<space|0.2fn>>>>>|<htab|5mm>>
+      <no-break><pageref|auto-4>>
+
+      <with|par-left|<quote|1tab>|2.3<space|2spc>Inner implemention of
+      unicode string <datoms|<macro|x|<repeat|<arg|x>|<with|font-series|medium|<with|font-size|1|<space|0.2fn>.<space|0.2fn>>>>>|<htab|5mm>>
+      <no-break><pageref|auto-5>>
+
+      <with|par-left|<quote|1tab>|2.4<space|2spc>Unicode handling at user
+      interface <datoms|<macro|x|<repeat|<arg|x>|<with|font-series|medium|<with|font-size|1|<space|0.2fn>.<space|0.2fn>>>>>|<htab|5mm>>
+      <no-break><pageref|auto-6>>
+
+      <with|par-left|<quote|1tab>|2.5<space|2spc>texmacs programming language
+      <datoms|<macro|x|<repeat|<arg|x>|<with|font-series|medium|<with|font-size|1|<space|0.2fn>.<space|0.2fn>>>>>|<htab|5mm>>
       <no-break><pageref|auto-7>>
 
-      <with|par-left|<quote|1tab>|2.3<space|2spc>Git(VCS) Integration
+      <vspace*|1fn><with|font-series|<quote|bold>|math-font-series|<quote|bold>|3<space|2spc>Discussion>
       <datoms|<macro|x|<repeat|<arg|x>|<with|font-series|medium|<with|font-size|1|<space|0.2fn>.<space|0.2fn>>>>>|<htab|5mm>>
-      <no-break><pageref|auto-8>>
-
-      <with|par-left|<quote|1tab>|2.4<space|2spc>technique detail and
-      backward compability <datoms|<macro|x|<repeat|<arg|x>|<with|font-series|medium|<with|font-size|1|<space|0.2fn>.<space|0.2fn>>>>>|<htab|5mm>>
-      <no-break><pageref|auto-9>>
-
-      <vspace*|1fn><with|font-series|<quote|bold>|math-font-series|<quote|bold>|3<space|2spc>Topic:
-      Unicode support> <datoms|<macro|x|<repeat|<arg|x>|<with|font-series|medium|<with|font-size|1|<space|0.2fn>.<space|0.2fn>>>>>|<htab|5mm>>
-      <no-break><pageref|auto-10><vspace|0.5fn>
-
-      <vspace*|1fn><with|font-series|<quote|bold>|math-font-series|<quote|bold>|4<space|2spc>Discussion>
-      <datoms|<macro|x|<repeat|<arg|x>|<with|font-series|medium|<with|font-size|1|<space|0.2fn>.<space|0.2fn>>>>>|<htab|5mm>>
-      <no-break><pageref|auto-11><vspace|0.5fn>
+      <no-break><pageref|auto-8><vspace|0.5fn>
     </associate>
   </collection>
-</auxiliary>
\ No newline at end of file
+</auxiliary>