composite master renaming, and; multiple remote puts (rsync|scp)

* composite master files: eliminate ._sst, replace with .ssm.sst

* multiple remote hosts ("distributed" rsyncing), yml config files remote now
  uses array

with all recent changes (directory shunting) much testing is yet to be done,
state is unstable some things are known not to work this instant, e.g. sisu -V

19 files changed, 216 insertions, 185 deletions

diff --git a/lib/sisu/v0/composite.rb b/lib/sisu/v0/composite.rb
index 88c6c48a..4768522a 100644
--- a/lib/sisu/v0/composite.rb
+++ b/lib/sisu/v0/composite.rb
@@ -113,7 +113,7 @@ module SiSU_Assemble
       end
     end
     def write(assembled)
-      assembled_file=File.new("#{@env.path.composite_file}/#{@opt.fnb}._sst",'w+')
+      assembled_file=File.new("#{@env.path.composite_file}/#{@opt.fnb}.ssm.sst",'w+')
       assembled.each{|a| assembled_file << a }
       assembled_file.close
     end
diff --git a/lib/sisu/v0/help.rb b/lib/sisu/v0/help.rb
index 7c09da3c..e9f3906b 100644
--- a/lib/sisu/v0/help.rb
+++ b/lib/sisu/v0/help.rb
@@ -454,7 +454,7 @@ sisu
   Note: page breaks are usually introduced to pdfs either as header instructions, indicating that pages should break at given levels
   ------------------------------------------
   #{@cX.cyan}Composite documents#{@cX.off}
-    It is possible to build a document by creating a master document that requires other documents. The documents required may complete documents that could be generated independently, or they could be markup snippets, prepared so as to be easily available to be placed within another text. If the calling document is a master document (built mainly from other documents), it should be named with the suffix #{@cX.blue}.ssm#{@cX.off} Within this document you would provide information on the other documents that should be included within the text. These may be other documents that would be processed in a regular way, or markup bits prepared only for inclusion within a master document #{@cX.blue}.sst#{@cX.off} regular markup file, or #{@cX.blue}.ssi#{@cX.off} (insert/information) A secondary file of the composite document is built prior to processing with the same prefix and the suffix #{@cX.blue}._sst#{@cX.off}
+    It is possible to build a document by creating a master document that requires other documents. The documents required may complete documents that could be generated independently, or they could be markup snippets, prepared so as to be easily available to be placed within another text. If the calling document is a master document (built mainly from other documents), it should be named with the suffix #{@cX.blue}.ssm#{@cX.off} Within this document you would provide information on the other documents that should be included within the text. These may be other documents that would be processed in a regular way, or markup bits prepared only for inclusion within a master document #{@cX.blue}.sst#{@cX.off} regular markup file, or #{@cX.blue}.ssi#{@cX.off} (insert/information) A secondary file of the composite document is built prior to processing with the same prefix and the suffix #{@cX.blue}.ssm.sst#{@cX.off}
 
     #{@cX.cyan}#basic sisu markup alternatives#{@cX.off}
       #{@cX.green}{#{@cX.off}filename.ssi#{@cX.green}}require#{@cX.off}
diff --git a/lib/sisu/v0/html_format.rb b/lib/sisu/v0/html_format.rb
index 090c779a..e770a339 100644
--- a/lib/sisu/v0/html_format.rb
+++ b/lib/sisu/v0/html_format.rb
@@ -198,7 +198,7 @@ module SiSU_HTML_Format
 }
     end
     def scroll(text)
-      if @md.fns =~ /\.[_-]?sst$/
+      if @md.fns =~ /\.(?:-|ssm\.)?sst$/
         scroll=%{<td align="center" bgcolor=#{@vz.color_band2}>
   <a href="#{@md.fn[:doc]}" target="_top" #{@vz.js_doc}>
     #{text}
diff --git a/lib/sisu/v0/hub.rb b/lib/sisu/v0/hub.rb
index db0bb2a2..9fe102e7 100644
--- a/lib/sisu/v0/hub.rb
+++ b/lib/sisu/v0/hub.rb
@@ -129,23 +129,23 @@ module SiSU
             pod_output(pod_name)
             break
           else
-            put=fns.gsub(/(.+)?\._sst$/,'\1.ssm')
+            put=fns.gsub(/(.+)?\.ssm\.sst$/,'\1.ssm')
             @opt.fns=fns
             if @req !~/(?:urls|remote)$/
-              if @req=~/^dal$/ and FileTest.file?(@opt.fns) and @opt.fns =~ /\.(?:[_-]?sst|ssm)$/
+              if @req=~/^dal$/ and FileTest.file?(@opt.fns) and @opt.fns =~ /\.(?:(?:-|ssm\.)?sst|ssm)$/
                 if fns =~ /\.ssm$/; require "#{SiSU_lib}/composite"  #pre-processing
                   SiSU_Assemble::Composite.new(@opt).read
-                  @opt.fns=fns.gsub(/\.ssm$/,'._sst')
+                  @opt.fns=fns.gsub(/\.ssm$/,'.ssm.sst')
                 end
                 SiSU_DAL::Source.new(@opt).read                                         # -m
               elsif FileTest.file?(env.source_file_with_path)
                 case @opt.fns
-                when /\.(?:[_-]?sst|ssm)$/
+                when /\.(?:(?:-|ssm\.)?sst|ssm)$/
                   case @req
                   when /^dal$/
                     if fns =~ /\.ssm$/; require "#{SiSU_lib}/composite"  #pre-processing
                       SiSU_Assemble::Composite.new(@opt).read
-                      @opt.fns=fns.gsub(/\.ssm$/,'._sst')
+                      @opt.fns=fns.gsub(/\.ssm$/,'.ssm.sst')
                     end
                                             SiSU_DAL::Source.new(@opt).read             # -m
                   when /^concordance$/;     SiSU_Concordance::Source.new(@opt).read     # -w
@@ -196,7 +196,7 @@ module SiSU
               @n_do=@n_do+1
               tell=SiSU_Screen::Ansi.new(@opt.cmd,@n_do,"#{@req.upcase} processed")
               tell.files_processed unless @opt.cmd =~/q/
-            else                       Operations.new(@opt).not_found
+            else Operations.new(@opt).not_found
             end
           end
         end
@@ -409,7 +409,7 @@ p "here #{__FILE__} #{__LINE__}" if @opt =~/M/
         end
         if @opt.cmd=~/m/; op('dal','dal')                #% -m dal
         end
-        @opt.files=@opt.files.collect {|x| x=x.gsub(/\.ssm$/,'._sst') }
+        @opt.files=@opt.files.collect {|x| x=x.gsub(/\.ssm$/,'.ssm.sst') }
         if @opt.cmd =~/S/
           op('sisupod_make','sisupod (zip)')                   #% -S make sisupod
           if @opt.fns=~/\.kdi._sst/
@@ -447,7 +447,7 @@ p "here #{__FILE__} #{__LINE__}" if @opt =~/M/
               when /\.(termsheet.rb)$/;            Operations.new(@opt).termsheet
               else                                 #print "not processed --> ", fns, "\n"
               end
-            else                                   Operations.new(@opt).not_found
+            else Operations.new(@opt).not_found
             end
           end
           Operations.new.counter
@@ -517,14 +517,14 @@ p "here #{__FILE__} #{__LINE__}" if @opt =~/M/
       @opt.files.each do |fns|
         if FileTest.file?(fns)
           @opt.fns=fns
-          unless @opt.fns =~ /(?:\.(?:[_-]?sst|ssm|ssp|sx[sdn]\.xml|termsheet.rb)|sisupod(?:\.zip)?)$/
+          unless @opt.fns =~ /(?:\.(?:(?:-|ssm\.)?sst|ssm|ssp|sx[sdn]\.xml|termsheet.rb)|sisupod(?:\.zip)?)$/
             if @opt.fns=~/\.kdi$/ and @opt.mod.inspect =~/--(?:convert(?:-from)?|from)[=-]kdi/
             elsif @opt.fns=~/\.sx[sdn]\.xml$/ and @opt.mod.inspect =~/--(?:(?:convert(?:-from)?|from)[=-])?(?:xml2sst|sxml)/
             elsif @opt.fns=~/\.ssi$/ and @opt.mod.inspect =~/--identify/
             else Operations.new(@opt).not_recognised
             end
           end
-          if @opt.fns =~/\._sst$/ and @opt.cmd !~/[S_M]/ # rework necessry, revist, the _ flag is a hack, to keep ._sst files
+          if @opt.fns =~/\.ssm\.sst$/ and @opt.cmd !~/[S_M]/ # rework necessry, revist, the _ flag is a hack, to keep ._sst files
             @msg,@msgs='temporary file removed',nil
             @tell.call.warn unless @opt.cmd =~/V/
             File.unlink(@opt.fns) if File.exist?(@opt.fns) #CONSIDER
diff --git a/lib/sisu/v0/manifest.rb b/lib/sisu/v0/manifest.rb
index 8a1f0cd3..0776f4d1 100644
--- a/lib/sisu/v0/manifest.rb
+++ b/lib/sisu/v0/manifest.rb
@@ -234,8 +234,8 @@ module SiSU_Manifest
         end
       end
       def source_tests
-        if @md.fns =~/\._sst$/                                                  #% decide whether to extract and include requested/required documents
-          req=@md.fns.gsub(/(.+)?\._sst$/,'\1.ssm.sst') #watch strange
+        if @md.fns =~/\.ssm\.sst$/                                                  #% decide whether to extract and include requested/required documents
+          req=@md.fns
           if FileTest.file?("#@base_path_src/#{req}")==true
             id,file='Markup Composite File (SiSU source)',req
             summarize_source(id,file)
diff --git a/lib/sisu/v0/manpage.rb b/lib/sisu/v0/manpage.rb
index 8de98bde..397b94d8 100644
--- a/lib/sisu/v0/manpage.rb
+++ b/lib/sisu/v0/manpage.rb
@@ -70,7 +70,7 @@ module SiSU_manpage
   class Source
     def initialize(opt)
       @opt=opt
-      if @opt.fns =~/(.+?)\.[_-]?sst$/
+      if @opt.fns =~/(.+?)\.(?:-|ssm\.)?sst$/
         @@dostype='unix endnotes'
       else puts "#{sf} not a processed file type"
       end
diff --git a/lib/sisu/v0/odf.rb b/lib/sisu/v0/odf.rb
index 4884c33a..feea7cde 100644
--- a/lib/sisu/v0/odf.rb
+++ b/lib/sisu/v0/odf.rb
@@ -224,7 +224,7 @@ module SiSU_ODF
         %{#{breakpage}<text:h text:style-name="Heading_20_#{no}" text:outline-level="#{no}">#{para}</text:h>}
       end
       def image_src(i)
-        image_source=if @md.fns =~/\._?ss[tm]$/ and FileTest.file?("#{@env.path.image_source_local_tex}/#{i}")
+        image_source=if @md.fns =~/\.ss[tm]$/ and FileTest.file?("#{@env.path.image_source_local_tex}/#{i}") #review
           @env.path.image_source_local_tex
         elsif @md.fns =~/\.-ss[tm]$/ and FileTest.file?("#{@env.path.image_source_remote_tex}/#{i}")
           @env.path.image_source_remote_tex
diff --git a/lib/sisu/v0/options.rb b/lib/sisu/v0/options.rb
index 7f94306e..a4cdc5e4 100644
--- a/lib/sisu/v0/options.rb
+++ b/lib/sisu/v0/options.rb
@@ -102,7 +102,7 @@ module SiSU_commandline
           end
           if x =~/^--\S+/;        m << x
           end
-        elsif x =~ /(?:\.(?:[_-]?sst(?:\.xml)?|ssm|ssi|sx[sdn]\.xml|s[1-3]|kdi|ssp)|sisupod(?:\.zip)?)$/
+        elsif x =~ /(?:\.(?:(?:-|ssm\.)?sst(?:\.xml)?|ssm|ssi|sx[sdn]\.xml|s[1-3]|kdi|ssp)|sisupod(?:\.zip)?)$/
           if x =~/^(?:https?|file):\/\/\S+/;  f << x
           elsif FileTest.file?(x); f << x
           else  puts "file not found: #{x}"
@@ -162,16 +162,16 @@ module SiSU_commandline
     end
     def fnb
       unless fns.empty?
-        fns[/(.+?)\.(?:[_-]?sst|ssm)$/,1]
+        fns[/(.+?)\.(?:(?:-|ssm\.)?sst|ssm)$/,1]
       end
     end
     def fnc
-      @fnc=if @fns =~/\.(?:_sst|ssm)$/; fnb + '.ssm.sst'
+      @fnc=if @fns =~/\.(?:ssm\.sst|ssm)$/; fnb + '.ssm.sst'
       else @fns
       end
     end
     def fncb
-      @fncb=if @fns =~/(?:\~\S{2,3})?\.(?:_sst|ssm)$/; fnb + '.ssm.sst'
+      @fncb=if @fns =~/(?:\~\S{2,3})?\.(?:ssm\.sst|ssm)$/; fnb + '.ssm.sst'
       else @fns.gsub(/(?:\~\S{2,3})?(\.sst)$/,'\1')
       end
     end
diff --git a/lib/sisu/v0/param.rb b/lib/sisu/v0/param.rb
index e154b903..fec253d0 100644
--- a/lib/sisu/v0/param.rb
+++ b/lib/sisu/v0/param.rb
@@ -78,7 +78,7 @@ module SiSU_Param
       @opt=opt
       @cX||=SiSU_Screen::Ansi.new(opt.cmd)
       @cmd,@mod=opt.cmd,opt.mod
-      @fns=opt.fns.gsub(/\.ssm$/,'._sst') #revisit CHECK
+      @fns=opt.fns.gsub(/\.ssm$/,'.ssm.sst') #revisit CHECK
       Instantiate.new.param_instantiate
       @env=SiSU_Env::Info_env.new(@fns)
       @pstorefile="#{@env.path.dal}/#@fns.pstore"
@@ -172,13 +172,13 @@ module SiSU_Param
         # programs set here for things that affect output appearance only
         @programs[:pdf]=SiSU_Env::System_call.new.program_found?('pdflatex')
         if @env.i18n.multilingual
-          m=/((.+?)(?:\~\w{2,3})?)\.([_-]?sst)$/ #watch added match for sss
+          m=/((.+?)(?:\~\w{2,3})?)\.((?:-|ssm\.)?sst)$/ #watch added match for sss
           @fnn,@fnb,@fnt=@fns[m,1],@fns[m,2],@fns[m,3]
           @flv=@env.document_language_versions_found[:f]
-          @fnz=if @fns =~/\.(?:_sst|ssm)$/; @fnn + '.ssm.zip'
+          @fnz=if @fns =~/\.(?:ssm\.sst|ssm)$/; @fnn + '.ssm.zip'
           else @fnn + '.sst.zip'
           end
-        else m=/(.+?)\.([_-]?sst)$/
+        else m=/(.+?)\.((?:-|ssm\.)?sst)$/
           @fnb=@fnn=@fns[m,1]
           @fnt=@fns[m,2]
           @flv<<@fns
@@ -190,7 +190,7 @@ module SiSU_Param
         @sfx_src=@fns[m,2]
         @sfx=nil
         @flag_auto_heading_num=false
-        if @fns =~ /[_-]?sst$/ #watch
+        if @fns =~ /(?:-|ssm\.)?sst$/ #watch
           @env_out_root=@env.path.output
           @dir_out="#{@env.path.output}/#@fnb"
           @dir_tex=@env.path.tex
diff --git a/lib/sisu/v0/plaintext.rb b/lib/sisu/v0/plaintext.rb
index d6284613..86a17089 100644
--- a/lib/sisu/v0/plaintext.rb
+++ b/lib/sisu/v0/plaintext.rb
@@ -70,7 +70,7 @@ module SiSU_Plaintext
   class Source
     def initialize(opt)
       @opt=opt
-       @@dostype=if @opt.fns =~/(.+?)\.[_-]?sst$/
+       @@dostype=if @opt.fns =~/(.+?)\.(?:-|ssm\.)?sst$/
         if @opt.mod.inspect =~ /--footnote/ and @opt.mod.inspect =~ /--dos/;   'msdos footnotes'
         elsif @opt.mod.inspect =~ /--endnote/ and @opt.mod.inspect =~ /--dos/; 'msdos endnotes'
         elsif @opt.mod.inspect =~ /--footnote/;                                'unix footnotes'
diff --git a/lib/sisu/v0/remote.rb b/lib/sisu/v0/remote.rb
index 7e0205b1..2a45e3cb 100644
--- a/lib/sisu/v0/remote.rb
+++ b/lib/sisu/v0/remote.rb
@@ -62,8 +62,8 @@ module SiSU_Remote
     def initialize(opt)
       @opt=opt
       @dir=SiSU_Env::Info_env.new(@opt.fns)
-      @put=unless @opt.fns =~/\._sst$/; @opt.fns
-      else @opt.fns.gsub(/(.+)?\._sst$/,'\1.ssm')
+      @put=unless @opt.fns =~/\.ssm\.sst$/; @opt.fns
+      else @opt.fns.gsub(/(.+)?\.ssm\.sst$/,'\1.ssm')
       end
       @remote=SiSU_Env::Info_remote.new(@opt)
     end
diff --git a/lib/sisu/v0/screen_text_color.rb b/lib/sisu/v0/screen_text_color.rb
index 79656e07..a3f1cc7f 100644
--- a/lib/sisu/v0/screen_text_color.rb
+++ b/lib/sisu/v0/screen_text_color.rb
@@ -198,7 +198,7 @@ module SiSU_Screen
       @sourcefilename=sourcefilename
     end
     def basename(sourcefilename)
-      @basename=sourcefilename.sub(/\.(?:[_-]?sst|ssm)$/,'')
+      @basename=sourcefilename.sub(/\.(?:(?:-|ssm\.)?sst|ssm)$/,'')
     end
     def sisu
     end
diff --git a/lib/sisu/v0/share_src.rb b/lib/sisu/v0/share_src.rb
index 3d2bf8db..c098f282 100644
--- a/lib/sisu/v0/share_src.rb
+++ b/lib/sisu/v0/share_src.rb
@@ -79,7 +79,7 @@ module SiSU_Markup
         unless @opt.fns =~/\.ssm$/; cp(@opt.fns,@output_path)
         else
           req=@opt.fns.gsub(/(.+?\.ssm)$/,'\1.sst')
-          file="#{@env.path.composite_file}/#{@opt.fnb}._sst"
+          file="#{@env.path.composite_file}/#{@opt.fnb}.ssm.sst"
           if FileTest.file?(file);  cp(file,"#@output_path/#{req}")
           else print "did not find #{file} to copy"
           end
diff --git a/lib/sisu/v0/sisupod_make.rb b/lib/sisu/v0/sisupod_make.rb
index 10ec76e5..392aee7d 100644
--- a/lib/sisu/v0/sisupod_make.rb
+++ b/lib/sisu/v0/sisupod_make.rb
@@ -73,7 +73,7 @@ module SiSU_Doc
       else                    ''
       end
       @local_path="#{@env.path.output}/src" #@local_path="#{@env.path.output}/#{@env.fnb}"
-      @zipfile=if @opt.fns =~/\._sst$/; @opt.fns.gsub(/(?:\~\S{2,3})?\._sst$/,'.ssm')
+      @zipfile=if @opt.fns =~/\.ssm\.sst$/; @opt.fns.gsub(/(?:\~\S{2,3})?\.ssm\.sst$/,'.ssm')
       else @opt.fns.gsub(/(?:\~\S{2,3})?(\.sst)$/,'\1')
       end
       File.mkpath(pod_path) unless FileTest.directory?(pod_path)
@@ -161,7 +161,7 @@ module SiSU_Doc
       @rgx_image=/\{\s*(\S+?\.(?:png|jpg|gif))/
       @rgx_skin=/^(?:@skin:|0~skin)\s+(\S+)/
       @rgx_doc_import=/^%\s\s*\|(\S+?\.ss[ti])\|@\|\^\|>>ok/
-      use_file=if @opt.fns =~/(?:\.ssm|\._sst)$/; "#{@env.path.composite_file}/#{@opt.fnb}._sst"
+      use_file=if @opt.fns =~/(?:\.ssm|\.ssm\.sst)$/; "#{@env.path.composite_file}/#{@opt.fnb}.ssm.sst"
       else @opt.fns
       end
       file_array=IO.readlines(use_file,'')
@@ -170,7 +170,7 @@ module SiSU_Doc
         if f !~/^%\s/
           skin << f.scan(@rgx_skin).uniq.flatten if f =~@rgx_skin
           images << f.scan(@rgx_image).uniq if f =~@rgx_image
-        elsif f =~/^%\s/ and @opt.fns =~/\._sst$/
+        elsif f =~/^%\s/ and @opt.fns =~/\.ssm\.sst$/
           doc_import << f.scan(@rgx_doc_import).uniq if f =~@rgx_doc_import
         end
       end
@@ -228,7 +228,7 @@ module SiSU_Doc
         end
       end
       x=@env.document_language_versions_found   #check multiple document language versions (param not used)
-      if doc_import.flatten.length > 0 and @opt.fns =~/\._sst$/
+      if doc_import.flatten.length > 0 and @opt.fns =~/\.ssm\.sst$/
         doc_import.flatten.each do |f|
           cp_r("#{@env.path.pwd}/#{f}","#{@env.path.processing}/sisupod/#{f}")
         end
@@ -237,8 +237,8 @@ module SiSU_Doc
         x[:f].each do |f|
           cp_r("#{@env.path.pwd}/#{f}","#{@env.path.processing}/sisupod/#{f}")
         end
-      elsif @opt.fns =~/\._sst/
-        ssm=@opt.fns.gsub(/\._sst/,'.ssm')
+      elsif @opt.fns =~/\.ssm\.sst/
+        ssm=@opt.fns.gsub(/\.ssm\.sst/,'.ssm')
         cp_r("#{@env.path.pwd}/#{ssm}","#{@env.path.processing}/sisupod/#{ssm}")
       else cp_r("#{@env.path.pwd}/#{@opt.fns}","#{@env.path.processing}/sisupod/#{@opt.fns}")
       end #NB not all possibilies met, revisit, also in case of composite file may wish to add README
diff --git a/lib/sisu/v0/sysenv.rb b/lib/sisu/v0/sysenv.rb
index 4252529d..510324c7 100644
--- a/lib/sisu/v0/sysenv.rb
+++ b/lib/sisu/v0/sysenv.rb
@@ -353,19 +353,19 @@ module SiSU_Env
       end
       if @fns and @fns != '' #watch
         if multilingual
-          m=/((.+?)(?:\~\w{2,3})?)\.([_-]?sst|ssm)$/
+          m=/((.+?)(?:\~\w{2,3})?)\.((?:-|ssm\.)?sst|ssm)$/
           @@fnn ||=@fns[m,1]
           @@fnb ||=@fns[m,2]
           @@fnt ||=@fns[m,3]
           @@flv ||=document_language_versions_found[:f]
-          @@fnz ||=if @@fns =~/(?:\~\S{2,3})?\.(?:_sst|ssm)$/; @@fnb + '.ssm.zip'
+          @@fnz ||=if @@fns =~/(?:\~\S{2,3})?\.(?:ssm\.sst|ssm)$/; @@fnb + '.ssm.zip'
           else @@fnb + '.sst.zip'
           end
-        else m=/(.+?)\.([_-]?sst|ssm)$/
+        else m=/(.+?)\.((?:-|ssm\.)?sst|ssm)$/
           @@fnb ||=@fns[m,1]
           @@fnm ||=@fns[m,1]
           @@fnt ||=@fns[m,2]
-          @@fnz ||=if @@fns =~/(?:\~\S{2,3})?\.(?:_sst|ssm)$/; @@fnb + '.ssm.zip'
+          @@fnz ||=if @@fns =~/(?:\~\S{2,3})?\.(?:ssm\.sst|ssm)$/; @@fnb + '.ssm.zip'
           else @@fnb + '.sst.zip'
           end
         end
@@ -381,9 +381,9 @@ module SiSU_Env
       @fn={}
       unless (@fns.nil? or @fns.empty?)
         if multilingual
-          m=/((.+?)(?:\~\w{2,3})?)\.([_-]?sst$)/
+          m=/((.+?)(?:\~\w{2,3})?)\.((?:-|ssm\.)?sst$)/
           @fn[:b],@fn[:m],@fn[:t]=@fns[m,1],@fns[m,2],@fns[m,3]
-        else m=/(.+?)\.([_-]?sst$)/
+        else m=/(.+?)\.((?:-|ssm\.)?sst$)/
           @fn[:b]=@fn[:m]=@fns[m,1]
           @fn[:t]=@fns[m,2]
         end
@@ -411,10 +411,10 @@ module SiSU_Env
       @m=[]
       unless (@fns.nil? or @fns.empty?)
         if multilingual
-          m=/((.+?)(?:\~\w{2,3})?)\.([_-]?sst$)/
+          m=/((.+?)(?:\~\w{2,3})?)\.((?:-|ssm\.)?sst$)/
           @fn[:b],@fn[:m],@fn[:t]=@fns[m,1],@fns[m,2],@fns[m,3]
           #@fl[:v]=@env.document_language_versions_found
-        else m=/(.+?)\.([_-]?sst$)/
+        else m=/(.+?)\.((?:-|ssm\.)?sst$)/
           @fn[:b]=@fn[:m]=@fns[m,1]
           @fn[:t]=@fns[m,2]
         end
@@ -744,7 +744,7 @@ module SiSU_Env
       language[:c]
     end
     def file_to_language(file)
-      m=/.+?\~(\w{2,3})\.[_-]?sst$/
+      m=/.+?\~(\w{2,3})\.(?:-|ssm\.)?sst$/
       @language=if file =~m ; file[m,1]
       else ''
       end
@@ -767,7 +767,7 @@ module SiSU_Env
       fnb=if @md and defined? @md.fnb; @md.fnb
       elsif defined? @env.fnb and @env.fnb; @env.fnb
       elsif not @fns.nil? and not @fns.empty?
-        m=/(.+)?\.(?:[_-]?sst|ssm)$/m
+        m=/(.+)?\.(?:(?:-|ssm\.)?sst|ssm)$/m
         @fns[m,1] if not @fns.empty?
       end
       if fnb; @@fb ||=fnb
@@ -1110,17 +1110,17 @@ WOK
       self
     end
     def source_file_path
-      file=@fns.gsub(/(\.ssm)/,'._sst')
-      pth=unless file =~/\._sst$/; "#{Dir.pwd}"
+      file=@fns.gsub(/\.ssm(?:\.sst)?/,'.ssm.sst')
+      pth=unless file =~/\.ssm\.sst$/; "#{Dir.pwd}"
       else "#{path.composite_file}"
       end
     end
     def source_file_with_path
-      file=@fns.gsub(/(\.ssm)/,'._sst')
+      file=@fns.gsub(/\.ssm(?:\.sst)?/,'.ssm.sst')
       "#{source_file_path}/#{file}"
     end
     def read_source_file(fns)
-      fns_array=unless fns =~/\._sst$/
+      fns_array=unless fns =~/\.ssm.sst$/
         IO.readlines(fns,'')
       else IO.readlines("#{path.composite_file}/#{fns}",'')
       end
@@ -2004,23 +2004,38 @@ WOK
       @rc=Get_init.instance.yamlrc
     end
     def remote_host #see Info_remote remote_host_base_general
-      r={}
-      r=if (defined? @rc['remote']['user'] and defined? @rc['remote']['host'])
-        r[:user]=@rc['remote']['user']
-        r[:host]=@rc['remote']['host']
-        r[:path]=if defined? @rc['remote']['path']
+      r=[]
+      r=if (defined? @rc['remote'] and @rc['remote'].class==Array)
+        r_array=@rc['remote']
+        r_array.each_with_index do |renv,i|
+          r[i]={}
+          if defined? renv['user'] and defined? renv['host']
+          end
+          r[i][:user]=renv['user']
+          r[i][:host]=renv['host']
+          r[i][:path]=if defined? renv['path']
+            renv['path']
+          else ''
+          end
+          r[i][:name]="#{r[i][:user]}@#{r[i][:host]}:#{r[i][:path]}"
+        end
+        r
+      elsif (defined? @rc['remote'] and @rc['remote'].class==Hash and defined? @rc['remote']['user'] and defined? @rc['remote']['host'])
+        r[0][:user]=@rc['remote']['user']
+        r[0][:host]=@rc['remote']['host']
+        r[0][:path]=if defined? @rc['remote']['path']
           @rc['remote']['path']
         else ''
         end
-        r[:name]="#{r[:user]}@#{r[:host]}:#{r[:path]}"
+        r[0][:name]="#{r[:user]}@#{r[:host]}:#{r[:path]}"
         r
       else
-        r[:name]='.'
-        r[:user]=''
-        r[:host]=''
-        r[:path]=''
-        r
+        r[0][:name]='.'
+        r[0][:user]=''
+        r[0][:host]=''
+        r[0][:path]=''
         #puts "no remote host or user"
+        r
       end
     end
   end
@@ -2036,138 +2051,154 @@ WOK
       SiSU_Env::Info_remote_host.new.remote_host
     end
     def remote_host_base
-      remote=remote_host_base_general
-      #host_ip=IPSocket.getaddress(remote[:host]) unless remote[:host].empty?
-      @@flag_remote=true if remote[:name] =~/\S+?@\S+/ #and  host_ip =~/\d+\.\d+\.\d+\.\d+/ #very naive check should be enough /[0-255]+\.[0-255]+\.[0-255]+\.[0-255]+/
-      remote_host_base_general[:name]
+      remote_host_base_general.each do |remote_conn|
+        #host_ip=IPSocket.getaddress(remote[:host]) unless remote[:host].empty?
+        @@flag_remote=true if remote_conn[:name] =~/\S+?@\S+/
+        #remote_conn[:name]
+      end
+      remote_host_base_general
     end
     def scp                                                                    #sort out later using ruby libraries #not ideal, first time each file is sent, -r must be called separately for subdir to be built
-      local=@source_path
-      remote=case @opt.cmd
-      when /u/;                "#{self.remote_host_base}/#{@env.path.stub_pwd}/."             #creates remote directory tree, this is not the usual function of u
-      when /[abhHNopwxXy]/;    "#{self.remote_host_base}/#{@env.path.stub_pwd}/#{@fnb}/."
-      else                     "#{self.remote_host_base}/#{@env.path.stub_pwd}/."
-      end
-      #remote="#{self.remote_host_base}/#{@env.path.stub_pwd}/."
-      local_src=@source_path_src
-      remote_src="#{self.remote_host_base}/#{@env.path.stub_src}/."
-      src_txt=@opt.fnc
-      src_pod=@opt.fncb.gsub(/(\.ss[mt])(?:\.sst)?$/,'\1.zip')
-      if (local =~/\S/ and local !~/\/\//) and (remote =~/\S/ and remote !~/\/\//) and @@flag_remote==true and @opt.cmd !~/U/
-        System_call.new(local,remote).scp
-        if FileTest.file?("#{local_src}/#{src_txt}") or FileTest.file?("#{local_src}/#{src_pod}")
-          System_call.new("#{local_src}/#{src_txt} #{local_src}/#{src_pod}",remote_src).scp
-        end
-      elsif  @opt.cmd =~/U/
-        puts "#{__FILE__} #{__LINE__}" if @opt.cmd =~/M/
-        puts "#{local} -> #{remote}"
-        if FileTest.file?("#{local_src}/#{src_doc}") or FileTest.file?("#{local_src}/#{src_doc}.zip")
-          puts "#{local_src}/#{src_doc}* -> #{remote_src}"
+      self.remote_host_base.each do |remote_conn|
+        local_gen=@source_path
+        remote_gen=case @opt.cmd
+        when /u/;                "#{remote_conn[:name]}/#{@env.path.stub_pwd}/."             #creates remote directory tree, this is not the usual function of u
+        when /[abhHNopwxXy]/;    "#{remote_conn[:name]}/#{@env.path.stub_pwd}/#{@fnb}/."
+        else                     "#{remote_conn[:name]}/#{@env.path.stub_pwd}/."
+        end
+        #remote="#{remote_conn[:name]}/#{@env.path.stub_pwd}/."
+        local_src=@source_path_src
+        remote_src="#{remote_conn[:name]}/#{@env.path.stub_src}/."
+        src_txt=@opt.fnc
+        src_pod=@opt.fncb.gsub(/(\.ss[mt])(?:\.sst)?$/,'\1.zip')
+        if (local_gen =~/\S/ and local_gen !~/\/\//) and (remote_gen =~/\S/ and remote_gen !~/\/\//) and @@flag_remote==true and @opt.cmd !~/U/
+          System_call.new(local_gen,remote_gen).scp
+          if FileTest.file?("#{local_src}/#{src_txt}") or FileTest.file?("#{local_src}/#{src_pod}")
+            System_call.new("#{local_src}/#{src_txt} #{local_src}/#{src_pod}",remote_src).scp
+          end
+        elsif  @opt.cmd =~/U/
+          puts "#{__FILE__} #{__LINE__}" if @opt.cmd =~/M/
+          puts "#{local_gen} -> #{remote_gen}"
+          if FileTest.file?("#{local_src}/#{src_doc}") or FileTest.file?("#{local_src}/#{src_doc}.zip")
+            puts "#{local_src}/#{src_doc}* -> #{remote_src}"
+          end
+        else
+          puts 'suspect scp request, ignored'
+          puts "#{local_gen} -> #{remote_gen} remote flag: #@@flag_remote"
+          puts "permission not granted #{__FILE__} #{__LINE__}" if @opt.cmd =~/M/
         end
-      else
-        puts 'suspect scp request, ignored'
-        puts "#{local} -> #{remote} remote flag: #@@flag_remote"
-        puts "permission not granted #{__FILE__} #{__LINE__}" if @opt.cmd =~/M/
       end
     end
     def rsync
-      local=@source_path
-      remote="#{self.remote_host_base}/#{@env.path.stub_pwd}/."
-      local_src=@source_path_src
-      remote_src="#{self.remote_host_base}/#{@env.path.stub_src}/."
-      src_txt=@opt.fnc
-      src_pod=@opt.fncb.gsub(/(\.ss[mt])(?:\.sst)?$/,'\1.zip')
-      if (local =~/\S/ and local !~/\/\//) and (remote =~/\S/ and remote !~/\/\//) and @@flag_remote==true and @opt.cmd !~/U/
-        System_call.new(local,remote,@opt.cmd).rsync('--delete-after')
-        if FileTest.file?("#{local_src}/#{src_txt}") or FileTest.file?("#{local_src}/#{src_pod}")
-          System_call.new("#{local_src}/#{src_txt} #{local_src}/#{src_pod}",remote_src,@opt.cmd).rsync
-        end
-      elsif  @opt.cmd =~/U/
-        puts "#{__FILE__} #{__LINE__}" if @opt.cmd =~/M/
-        puts "#{local} -> #{remote}"
-        if FileTest.file?("#{local_src}/#{src_doc}") or FileTest.file?("#{local_src}/#{src_doc}.zip")
-          puts "#{local_src}/#{src_doc}* -> #{remote_src}"
+      self.remote_host_base.each do |remote_conn|
+        local_gen=@source_path
+        remote_gen="#{remote_conn[:name]}/#{@env.path.stub_pwd}/."
+        local_src=@source_path_src
+        remote_src="#{remote_conn[:name]}/#{@env.path.stub_src}/."
+        src_txt=@opt.fnc
+        src_pod=@opt.fncb.gsub(/(\.ss[mt])(?:\.sst)?$/,'\1.zip')
+        if (local_gen =~/\S/ and local_gen !~/\/\//) and (remote_gen =~/\S/ and remote_gen !~/\/\//) and @@flag_remote==true and @opt.cmd !~/U/
+          System_call.new(local_gen,remote_gen,@opt.cmd).rsync('--delete-after')
+          if FileTest.file?("#{local_src}/#{src_txt}") or FileTest.file?("#{local_src}/#{src_pod}")
+            System_call.new("#{local_src}/#{src_txt} #{local_src}/#{src_pod}",remote_src,@opt.cmd).rsync
+          end
+        elsif  @opt.cmd =~/U/
+          puts "#{__FILE__} #{__LINE__}" if @opt.cmd =~/M/
+          puts "#{local_gen} -> #{remote_gen}"
+          if FileTest.file?("#{local_src}/#{src_doc}") or FileTest.file?("#{local_src}/#{src_doc}.zip")
+            puts "#{local_src}/#{src_doc}* -> #{remote_src}"
+          end
+        else
+          puts 'suspect rsync request, ignored'
+          puts "#{local_gen} -> #{remote_gen} remote flag: #@@flag_remote"
+          puts "permission not granted #{__FILE__} #{__LINE__}" if @opt.cmd =~/M/
         end
-      else
-        puts 'suspect rsync request, ignored'
-        puts "#{local} -> #{remote} remote flag: #@@flag_remote"
-        puts "permission not granted #{__FILE__} #{__LINE__}" if @opt.cmd =~/M/
       end
     end
     def scp_base                                                                #base site
-      local=@source_path
-      remote="#{remote_host_base}/#{@env.path.stub_pwd}/."
-      if defined? @rc['permission_set']['remote_base_site'] and @rc['permission_set']['remote_base_site'] and @@flag_remote==true and @opt.cmd !~/U/
-        puts "begin scp_base: #{local} -> #{remote}"
-        System_call.new("#{local}/#{@env.path.style}/",remote).scp
-      elsif @opt.cmd =~/U/
-        puts "#{__FILE__} #{__LINE__}" if @opt.cmd =~/M/
-        puts "begin scp_base: #{local} -> #{remote}"
-        puts "#{local}/#{@env.path.style}/ -> #{remote}"
-      else  puts "permission not granted #{__FILE__} #{__LINE__}" if @opt.cmd =~/M/
+      self.remote_host_base.each do |remote_conn|
+        local=@source_path
+        remote="#{remote_conn[:name]}/#{@env.path.stub_pwd}/."
+        if defined? @rc['permission_set']['remote_base_site'] and @rc['permission_set']['remote_base_site'] and @@flag_remote==true and @opt.cmd !~/U/
+          puts "begin scp_base: #{local} -> #{remote}"
+          System_call.new("#{local}/#{@env.path.style}/",remote).scp
+        elsif @opt.cmd =~/U/
+          puts "#{__FILE__} #{__LINE__}" if @opt.cmd =~/M/
+          puts "begin scp_base: #{local} -> #{remote}"
+          puts "#{local}/#{@env.path.style}/ -> #{remote}"
+        else  puts "permission not granted #{__FILE__} #{__LINE__}" if @opt.cmd =~/M/
+        end
       end
     end
     def scp_base_all                                                            #base site
-      local=@source_path
-      remote="#{remote_host_base}/#{@env.path.stub_pwd}/."
-      if defined? @rc['permission_set']['remote_base_site'] and @rc['permission_set']['remote_base_site'] and @@flag_remote==true and @opt.cmd !~/U/
-        puts "begin scp_base_all: #{local} -> #{remote}"
-        System_call.new("#{local}/_sisu/image_sys/",remote).scp
-        System_call.new("#{local}/_sisu/image/",remote).scp
-        System_call.new("#{local}/#{@env.path.style}/",remote).scp
-      elsif @opt.cmd =~/U/
-        puts "#{__FILE__} #{__LINE__}" if @opt.cmd =~/M/
-        puts "scp_base_all: #{local} -> #{remote}"
-        puts "#{local}/_sisu/image_sys/ -> #{remote}"
-        puts "#{local}/_sisu/image/ -> #{remote}"
-        puts "#{local}/#{@env.path.style}/ -> #{remote}"
-      else  puts "permission not granted #{__FILE__} #{__LINE__}" if @opt.cmd =~/M/
+      self.remote_host_base.each do |remote_conn|
+        local=@source_path
+        remote="#{remote_conn[:name]}/#{@env.path.stub_pwd}/."
+        if defined? @rc['permission_set']['remote_base_site'] and @rc['permission_set']['remote_base_site'] and @@flag_remote==true and @opt.cmd !~/U/
+          puts "begin scp_base_all: #{local} -> #{remote}"
+          System_call.new("#{local}/_sisu/image/",remote).scp
+          System_call.new("#{local}/_sisu/image_local/",remote).scp
+          System_call.new("#{local}/#{@env.path.style}/",remote).scp
+        elsif @opt.cmd =~/U/
+          puts "#{__FILE__} #{__LINE__}" if @opt.cmd =~/M/
+          puts "scp_base_all: #{local} -> #{remote}"
+          puts "#{local}/_sisu/image/ -> #{remote}"
+          puts "#{local}/_sisu/image_local/ -> #{remote}"
+          puts "#{local}/#{@env.path.style}/ -> #{remote}"
+        else  puts "permission not granted #{__FILE__} #{__LINE__}" if @opt.cmd =~/M/
+        end
       end
     end
     def rsync_base                                                              #base site
-      local=@source_path
-      remote="#{remote_host_base}/#{@env.path.stub_pwd}/."
-      if defined? @rc['permission_set']['remote_base_site'] and @rc['permission_set']['remote_base_site'] and @@flag_remote==true and @opt.cmd !~/U/
-        #puts "begin rsync_base: #{local} -> #{remote}"
-        #System_call.new("#{local}/_sisu/image/",remote).rsync
-        #System_call.new("#{local}/_sisu/image_local/",remote).rsync
-        #System_call.new("#{local}/#{@env.path.style}/",remote).rsync
-      elsif @opt.cmd =~/U/
-        puts "#{__FILE__} #{__LINE__}" if @opt.cmd =~/M/
-        puts "rsync_base: #{local} -> #{remote}"
-        puts "#{local}/_sisu/image_sys/ -> #{remote}"
-        puts "#{local}/_sisu/image/ -> #{remote}"
-        puts "#{local}/#{@env.path.style}/ -> #{remote}"
-      else  puts "permission not granted #{__FILE__} #{__LINE__}" if @opt.cmd =~/M/
+      self.remote_host_base.each do |remote_conn|
+        local=@source_path
+        remote="#{remote_conn[:name]}/#{@env.path.stub_pwd}/."
+        if defined? @rc['permission_set']['remote_base_site'] and @rc['permission_set']['remote_base_site'] and @@flag_remote==true and @opt.cmd !~/U/
+          #puts "begin rsync_base: #{local} -> #{remote}"
+          #System_call.new("#{local}/_sisu/image/",remote).rsync
+          #System_call.new("#{local}/_sisu/image_local/",remote).rsync
+          #System_call.new("#{local}/#{@env.path.style}/",remote).rsync
+        elsif @opt.cmd =~/U/
+          puts "#{__FILE__} #{__LINE__}" if @opt.cmd =~/M/
+          puts "rsync_base: #{local} -> #{remote}"
+          puts "#{local}/_sisu/image/ -> #{remote}"
+          puts "#{local}/_sisu/image_local/ -> #{remote}"
+          puts "#{local}/#{@env.path.style}/ -> #{remote}"
+        else  puts "permission not granted #{__FILE__} #{__LINE__}" if @opt.cmd =~/M/
+        end
       end
     end
     def rsync_base_sync                                                         #base site
-      local=@source_path
-      remote="#{remote_host_base}/#{@env.path.stub_pwd}/."
-      if defined? @rc['permission_set']['remote_base_site'] and @rc['permission_set']['remote_base_site'] and @@flag_remote==true and @opt.cmd !~/U/
-        puts "begin rsync_base_sync: #{local} -> #{remote}"
-        System_call.new("#{local}/_sisu/image_sys/",remote).rsync('--delete-after')
-        System_call.new("#{local}/_sisu/image/",remote).rsync('--delete-after')
-        System_call.new("#{local}/#{@env.path.style}/",remote).rsync('--delete-after')
-      elsif @opt.cmd =~/U/
-        puts "#{__FILE__} #{__LINE__}" if @opt.cmd =~/M/
-        puts "rsync_base_sync: #{local} -> #{remote}"
-        puts "#{local}/_sisu/image_sys/ -> #{remote}"
-        puts "#{local}/_sisu/image/ -> #{remote}"
-        puts "#{local}/#{@env.path.style}/ -> #{remote}"
-      else  puts "permission not granted #{__FILE__} #{__LINE__}" if @opt.cmd =~/M/
+      self.remote_host_base.each do |remote_conn|
+        local=@source_path
+        remote="#{remote_conn[:name]}/#{@env.path.stub_pwd}/."
+        if defined? @rc['permission_set']['remote_base_site'] and @rc['permission_set']['remote_base_site'] and @@flag_remote==true and @opt.cmd !~/U/
+          puts "begin rsync_base_sync: #{local} -> #{remote}"
+          System_call.new("#{local}/_sisu/image/",remote).rsync('--delete-after')
+          System_call.new("#{local}/_sisu/image_local/",remote).rsync('--delete-after')
+          System_call.new("#{local}/#{@env.path.style}/",remote).rsync('--delete-after')
+        elsif @opt.cmd =~/U/
+          puts "#{__FILE__} #{__LINE__}" if @opt.cmd =~/M/
+          puts "rsync_base_sync: #{local} -> #{remote}"
+          puts "#{local}/_sisu/image/ -> #{remote}"
+          puts "#{local}/_sisu/image_local/ -> #{remote}"
+          puts "#{local}/#{@env.path.style}/ -> #{remote}"
+        else  puts "permission not granted #{__FILE__} #{__LINE__}" if @opt.cmd =~/M/
+        end
       end
     end
     def rsync_sitemaps                                                              #sitemap directory
-      local="#@source_path/sitemapindex.xml"
-      remote="#{remote_host_base}/#{@env.path.stub_pwd}/."
-      if @@flag_remote
-      #if defined? @rc['permission_set']['remote_base_site'] and @rc['permission_set']['remote_base_site'] #and @@flag_remote==true and @opt.cmd !~/U/
-        System_call.new(local,remote).rsync('--delete-after')
-      elsif @opt.cmd =~/U/
-        puts "#{__FILE__} #{__LINE__}" if @opt.cmd =~/M/
-        puts "rsync_sitemaps: #{local} -> #{remote}"
-      else  puts "permission not granted #{__FILE__} #{__LINE__}" if @opt.cmd =~/M/
+      self.remote_host_base.each do |remote_conn|
+        local="#@source_path/sitemapindex.xml"
+        remote="#{remote_conn[:name]}/#{@env.path.stub_pwd}/."
+        if @@flag_remote
+        #if defined? @rc['permission_set']['remote_base_site'] and @rc['permission_set']['remote_base_site'] #and @@flag_remote==true and @opt.cmd !~/U/
+          System_call.new(local,remote).rsync('--delete-after')
+        elsif @opt.cmd =~/U/
+          puts "#{__FILE__} #{__LINE__}" if @opt.cmd =~/M/
+          puts "rsync_sitemaps: #{local} -> #{remote}"
+        else  puts "permission not granted #{__FILE__} #{__LINE__}" if @opt.cmd =~/M/
+        end
       end
     end
   end
@@ -2209,7 +2240,7 @@ WOK
       @fns=fns
     end
     def basefilename
-      m=/(.+?)\.(?:[_-]?sst|ssm)$/m
+      m=/(.+?)\.(?:(?:-|ssm\.)?sst|ssm)$/m
       fnb=@fns[m,1]
     end
     def project
diff --git a/lib/sisu/v0/texinfo.rb b/lib/sisu/v0/texinfo.rb
index 3c7a35c2..a6d94c1a 100644
--- a/lib/sisu/v0/texinfo.rb
+++ b/lib/sisu/v0/texinfo.rb
@@ -84,7 +84,7 @@ module SiSU_TexInfo
     def directories
       begin
         case @opt.fns
-        when /\.[_-]?sst$/
+        when /\.(?:-|ssm\.)?sst$/
           Dir.mkdir(@env.path.output) unless FileTest.directory?("#{@env.path.output}")
           Dir.mkdir(@env.path.texi) unless FileTest.directory?(@env.path.tex)
           @@filename_texinfo=File.new(%{#{@env.path.texi}/#{@opt.fnb}.texinfo},'w+')
@@ -400,12 +400,12 @@ module SiSU_TexInfo
       @@filename_texinfo.close
     end
     def makeinfo
-      if @md.fns =~/\.[_-]?sst$/
+      if @md.fns =~/\.(?:-|ssm\.)?sst$/
         m=/(.+?)\.([_-]?sst)$/.match(@md.fns)
         fnb,sfx=m[1],m[2]
         pwd=Dir.pwd
         case sfx
-        when /[_-]?sst$/
+        when /(?:-|ssm\.)?sst$/
           @env=SiSU_Env::Info_env.new(@md.fns,@md.cmd)
           Dir.chdir(@env.path.texi)
           texinfo=SiSU_Env::System_call.new("#{fnb}.texinfo")
diff --git a/lib/sisu/v0/texpdf.rb b/lib/sisu/v0/texpdf.rb
index 4b4613b0..d6420684 100644
--- a/lib/sisu/v0/texpdf.rb
+++ b/lib/sisu/v0/texpdf.rb
@@ -91,7 +91,7 @@ module SiSU_TeX
       begin
         @dir_out_root=@env.path.output
         case @opt.fns
-        when /\.[_-]?sst$/
+        when /\.(?:-|ssm\.)?sst$/
           SiSU_Env::SiSU_file.new(@md).mkdir
           Dir.mkdir(@env.path.tex) unless FileTest.directory?(@env.path.tex)
         end
@@ -197,10 +197,10 @@ module SiSU_TeX
           @tex_f_no=0
           info={}
           if FileTest.file?(@env.source_file_with_path)
-            if @md.fns =~/\.[_-]?sst$/
+            if @md.fns =~/\.(?:-|ssm\.)?sst$/
               @dirout=SiSU_Env::Info_env.new(@md.fns)
               case @md.fns
-              when /\.[_-]?sst$/
+              when /\.(?:-|ssm\.)?sst$/
                 if FileTest.directory?(@env.path.tex)==true
                   Dir.chdir(@env.path.tex)
                   @dir_sisu=@dirout.path.output
diff --git a/lib/sisu/v0/texpdf_format.rb b/lib/sisu/v0/texpdf_format.rb
index 7798e886..7849727b 100644
--- a/lib/sisu/v0/texpdf_format.rb
+++ b/lib/sisu/v0/texpdf_format.rb
@@ -733,7 +733,7 @@ WOK
       image,m=/<:image\s+(\S+)\s+.+?width=``(\d+)''.+?>/m.match(@string).captures
       width=m[1] || '100'
       width=width.to_i*0.4
-      image_source=if @md.fns =~/\._?sst$/ and FileTest.file?("#{dir.path.image_source_local_tex}/#{image}")
+      image_source=if @md.fns =~/\.(?:ssm\.)?sst$/ and FileTest.file?("#{dir.path.image_source_local_tex}/#{image}")
         dir.path.image_source_local_tex
       elsif @md.fns =~/\.-ss[tm]$/ and FileTest.file?("#{dir.path.image_source_remote_tex}/#{image}")
         dir.path.image_source_remote_tex
@@ -770,7 +770,7 @@ WOK
       hsp="\n{\\color{mywhite} .}&~\n" # ~ character for hardspace
       caption="{\\\\\\\ \n\\begin{scriptsize}#{hsp*3}#{c}\\end{scriptsize}&}" if c
       #caption="{\\\\\\\ \n\\begin{scriptsize}#{hsp*3}#{c[1]}\\end{scriptsize}&}" if c
-      image_source=if @md.fns =~/\._?sst$/ and FileTest.file?("#{dir.path.image_source_local_tex}/#{image}")
+      image_source=if @md.fns =~/\.(?:ssm\.)?sst$/ and FileTest.file?("#{dir.path.image_source_local_tex}/#{image}")
         dir.path.image_source_local_tex
       elsif @md.fns =~/\.-ss[tm]$/ and FileTest.file?("#{dir.path.image_source_remote_tex}/#{image}")
         dir.path.image_source_remote_tex
@@ -835,7 +835,7 @@ WOK
             tell.print_grey #unless @opt.cmd =~/q/
           end
           ins=if image #most images fc etc. #% clean up !
-            out=if @md.fns =~/\._?sst$/ and FileTest.file?("#{dir.path.image_source_local_tex}/#{image}")
+            out=if @md.fns =~/\.(?:ssm\.)?sst$/ and FileTest.file?("#{dir.path.image_source_local_tex}/#{image}")
               @center_begin +
               "\\\n\\href{#{url}}" + #not satisfactory: \\ added to ^line to mimic reference file output
               "{\\includegraphics*[width=#{width}pt]" +
diff --git a/lib/sisu/v0/urls.rb b/lib/sisu/v0/urls.rb
index 1f9cfbe8..cfe242b3 100644
--- a/lib/sisu/v0/urls.rb
+++ b/lib/sisu/v0/urls.rb
@@ -86,7 +86,7 @@ module SiSU_urls
       fn_set_lang=SiSU_Env::Standardise_language.new.file_to_language(@opt.fns)
       @fnl=@env.i18n.lang_filename(fn_set_lang[:c])
       @fn=SiSU_Env::Env_call.new(@opt.fns).lang(fn_set_lang[:c])
-      @m_regular=/(.+?)\.(?:[_-]?sst|ssm)$/
+      @m_regular=/(.+?)\.(?:(?:-|ssm\.)?sst|ssm)$/
       @path=SiSU_Env::Info_env.new(@opt.fns)
       @webserv_url=@path.url.output_tell
       @tool=@env.program.text_editor
@@ -97,7 +97,7 @@ module SiSU_urls
       @odf_viewer=@env.program.odf_viewer
       @manpage_gen=@env.program.manpage_generator
       source=if @opt.fns =~/\.sst$/; @opt.fns
-      elsif @opt.fns =~/\._sst/; "#@fnb.ssm.sst"
+      elsif @opt.fns =~/\.ssm\.sst/; "#@fnb.ssm.sst"
       else 'not recognised file'
       end
       @u ||= {
@@ -217,7 +217,7 @@ module SiSU_urls
             @opt.cmd.gsub!(/P[iu]/,'')
           end
           if x=~/^[sS]/ and @opt.cmd =~/[sS]/
-            zipfile=if @opt.fns =~/\._sst$/; y.gsub(/(?:\~\S{2,3})?(\._sst\.zip)$/,'.ssm.zip')
+            zipfile=if @opt.fns =~/\.ssm\.sst$/; y.gsub(/(?:\~\S{2,3})?(\.ssm\.sst\.zip)$/,'.ssm.zip')
             else y.gsub(/(?:\~\S{2,3})?(\.sst\.zip)$/,'\1')
             end
             tell=SiSU_Screen::Ansi.new(@opt.cmd,"-#{x}","#@browser #@webserv_url/src/#{y}")