ruby 1.9 open; future pgsql testing on 8.3; encoding utf-8 checks; version bump 0.65.0

* ruby 1.9 use opened, testing required

* db sql pgsql future testing on version 8.3

* encoding utf-8 some compatibility checks

23 files changed, 430 insertions, 391 deletions

diff --git a/CHANGELOG b/CHANGELOG
index 3ada78e4..0f4f9ddc 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -9,11 +9,17 @@ Reverse Chronological:
 
 %% STABLE MANIFEST
 
-%% sisu_0.64.3.orig.tar.gz (2008-02-02:04/6)
-http://www.jus.uio.no/sisu/pkg/src/sisu_0.64.3.orig.tar.gz
-  sisu_0.64.3.orig.tar.gz
-  sisu_0.64.3-1.dsc
-  sisu_0.64.3-1.diff.gz
+%% sisu_0.65.0.orig.tar.gz (2008-02-05:05/2)
+http://www.jus.uio.no/sisu/pkg/src/sisu_0.65.0.orig.tar.gz
+  sisu_0.65.0.orig.tar.gz
+  sisu_0.65.0-1.dsc
+  sisu_0.65.0-1.diff.gz
+
+  * ruby 1.9 opened
+
+  * db sql pgsql future testing on version 8.3
+
+  * encoding utf-8 some compatibility checks
 
   * db sql, for updates use match criteria '=' instead of LIKE
     (required for pgsql 8.3 with bigint)
diff --git a/bin/sisu b/bin/sisu
index 1ba2e947..04d8bd62 100755
--- a/bin/sisu
+++ b/bin/sisu
@@ -1,9 +1,13 @@
 #!/usr/bin/env ruby
 #SiSU: copyright (C) 1997..2008 Ralph Amissah; License GPL, see appended program information
-raise "Please, use Ruby1.8 (1.8.4 or later), current Ruby #{RUBY_VERSION}" if RUBY_VERSION < '1.8.4' or RUBY_VERSION > '1.9'
-#raise "Please, use Ruby1.8.4 or later, current Ruby #{RUBY_VERSION}" if RUBY_VERSION < '1.8.4'
+raise "Please, use Ruby1.8.4 or later, current Ruby #{RUBY_VERSION}" if RUBY_VERSION < '1.8.4'
 $VERBOSE=nil
-$KCODE='u'
+if RUBY_VERSION < '1.9'
+  $KCODE='u'
+  TS1='¡'
+else
+  TS1='¡'.force_encoding('utf-8')
+end
 branch='v0'
 SiSU_lib="sisu/#{branch}"
 require "#{SiSU_lib}/hub"
diff --git a/lib/sisu/v0/dal.rb b/lib/sisu/v0/dal.rb
index 6bd11568..e31dba69 100644
--- a/lib/sisu/v0/dal.rb
+++ b/lib/sisu/v0/dal.rb
@@ -138,7 +138,11 @@ module SiSU_DAL
     end
     def read_fnm
       dal=[]
-      dal=if FileTest.file?(@fnm); File.open(@fnm){ |f| dal=Marshal.load(f)}
+      dal=if FileTest.file?(@fnm)
+        if RUBY_VERSION < '1.9'
+          File.open(@fnm){ |f| dal=Marshal.load(f)}
+        else File.open(@fnm,'r:utf-8'){ |f| dal=Marshal.load(f)}
+        end
       else SiSU_DAL::Source.new(@opt).create_dal
       end
     end
@@ -236,12 +240,12 @@ module SiSU_DAL
         para.gsub!(/<br>/,'<br />')                                            #needed by xml, xhtml etc.
         #para.gsub!(/<p>/,'<p />')                                             #consider
         para.gsub!(/`/,"'")
-        para.gsub!(/\342\200\231/,"'") #if para =~/’/  #Avoid #&lsquo; &rsquo; #&ldquo; &rdquo;
         para.gsub!(/\t/,' ')
-        para.gsub!(/�/,' ') #watch, replace with char code
-        para.gsub!(/[“”]/,'""')
-        para.gsub!(/[­–—]/,'-')   #— – chk
-        para.gsub!(/·/,'*')
+        para.gsub!(/\342\200\231/u,"'") #if para =~/’/  #Avoid #&lsquo; &rsquo; #&ldquo; &rdquo;
+        para.gsub!(/�/u,' ') #watch, replace with char code
+        para.gsub!(/[“”]/u,'""')
+        para.gsub!(/[­–—]/u,'-')   #— – chk
+        para.gsub!(/·/u,'*')
         para.gsub!(/\\copy(?:right)?\b/,'&#169;')
         para.gsub!(/\\trademark\b|\\tm\b/,'&#174;')
         #non_utf8(para)
@@ -519,7 +523,7 @@ module SiSU_DAL
       @tuned_file=[]
       data.each do |para|
         para.gsub!(/(^|[^<][^v][^>])\n/,'\1 ') #messy, but idea is that tables should retain breaks
-        para.gsub!(/^/,"\n") unless para =~/¡/
+        para.gsub!(/^/,"\n") unless para =~/¡/u
         para.gsub!(/^\s+|\s$/,"\n")
         @tuned_file << para
       end
diff --git a/lib/sisu/v0/dal_doc_str.rb b/lib/sisu/v0/dal_doc_str.rb
index a59800c4..68529c38 100644
--- a/lib/sisu/v0/dal_doc_str.rb
+++ b/lib/sisu/v0/dal_doc_str.rb
@@ -228,7 +228,7 @@ module SiSU_document_structure
         end
         para.gsub!(/\n\n/,"\n") if para =~/<:(?:code|verse|alt|group)>/ #newlines taken out
         para.gsub!(/(<:(?:code-end)>)/,"\n\\1") if para =~/<:(?:code-end)>/ #newlines added check
-        if para =~/<!Th?¡/; para.gsub!(/(<!Th?¡.+?!)>/,"\\1~#{o[:ocn]};#{o[:lv]};#{o[:type]}>")
+        if para =~/<!Th?¡/u; para.gsub!(/(<!Th?¡.+?!)>/u,"\\1~#{o[:ocn]};#{o[:lv]};#{o[:type]}>")
         end
         @o_array << Struct.new(o).structure if o
       end
diff --git a/lib/sisu/v0/dal_doc_str_tables.rb b/lib/sisu/v0/dal_doc_str_tables.rb
index 7289543e..fd5d6fe4 100644
--- a/lib/sisu/v0/dal_doc_str_tables.rb
+++ b/lib/sisu/v0/dal_doc_str_tables.rb
@@ -96,9 +96,9 @@ module SiSU_document_structure_tables
       w=widths.split(/;/)
       tuned_file=[]
       tuned_file << if para =~/\{(?:t|table)~h(?:\sc\d+;)?[\d; ]*\}/
-        "<!Th¡ c#{@row[2].length}; #{widths}!>"
+        "<!Th#{TS1} c#{@row[2].length}; #{widths}!>"
       elsif para =~/\{(?:t|table)(?:\sc\d+;)?[\d; ]*\}/
-        "<!T¡ c#{@row[2].length}; #{widths}!>"
+        "<!T#{TS1} c#{@row[2].length}; #{widths}!>"
       end
       @row.each do |l|
         l << '' if l.length == (@row[1].length - 1)
@@ -109,9 +109,9 @@ module SiSU_document_structure_tables
           l.each do |c|
             n +=1                                                                      #'<td>' + c + '</td>'
             table << if c =~/\A(?:\n)?\s*\Z/
-              "¡¡#{w[n]}¡" + ' '
+              "#{TS1}#{TS1}#{w[n]}#{TS1}" + ' '
             else
-              "¡¡#{w[n]}¡" + c.strip
+              "#{TS1}#{TS1}#{w[n]}#{TS1}" + c.strip
             end
           end
           table << '!>'                                                                  #'</tr>'
@@ -140,8 +140,8 @@ module SiSU_document_structure_tables
             instructions=$1
             @@column=instructions.split(/;\s*/)
             @@columns=@@column[0]
-            para.gsub!(/^table\{~h\s+(c\d+?;.+?)$/,'<!Th¡ \1!>')
-            para.gsub!(/^table\{\s+(c\d+?;.+?)$/,'<!T¡ \1!>')
+            para.gsub!(/^table\{~h\s+(c\d+?;.+?)$/,"<!Th#{TS1} \\1!>")
+            para.gsub!(/^table\{\s+(c\d+?;.+?)$/,"<!T#{TS1} \\1!>")
             @@flag['table_to']=true
           end
           if @@flag['table_to'] \
@@ -160,10 +160,10 @@ module SiSU_document_structure_tables
           and para =~/\S/
             @@counter=1
             sub_array=para.dup
-            @@line_mode=sub_array.scan(/.+/)
+            @@line_mode=sub_array.scan(/.+/u)
             Tables.new(@md,@@line_mode).tr_td
             para=@@line_mode.join
-            para.gsub!(/(.*\S+.*)\Z/m,'<!\1!>') unless para =~/<!Th?¡/
+            para.gsub!(/(.*\S+.*)\Z/m,'<!\1!>') unless para =~/<!Th?#{TS1}/u
           end
           para.gsub!(/\n/,' ')
           para.strip!
@@ -182,7 +182,10 @@ module SiSU_document_structure_tables
       data.each do |line|
         if @@counter <= @@columns.to_i \
         and line !~/(\}T\s*$|<:table[-_](close|end)>|<!TZ!>)/
-          line.gsub!(/(.+)/,"¡¡#{@@column[@@counter]}¡\\1") unless line =~/<!Th?¡/
+          #if line.encoding.inspect =~/Encoding:ASCII-8BIT/
+          #  line=line.force_encoding('utf-8')
+          #end
+          line.gsub!(/(.+)/,"#{TS1}#{TS1}#{@@column[@@counter]}#{TS1}\\1") unless line =~/<!Th?#{TS1}/u
           @@counter+=1
         end
       end
@@ -191,3 +194,6 @@ module SiSU_document_structure_tables
   end
 end
 __END__
+#p line.encoding
+@data.each {|x| p x.encoding }
+p para if para.encoding.inspect =~/Encoding:ASCII-8BIT/
diff --git a/lib/sisu/v0/db_import.rb b/lib/sisu/v0/db_import.rb
index 38cbb45d..0c53e5e5 100644
--- a/lib/sisu/v0/db_import.rb
+++ b/lib/sisu/v0/db_import.rb
@@ -133,10 +133,10 @@ module SiSU_DB_import
       string.gsub!(/<sup>(\d+)<\/sup>/,'[\1]')
       string.gsub!(/<:i[12]>/,'')
       string.gsub!(/(?:&nbsp\\;)+/,' ')
-      string.gsub!(/<!T[h]?¡.+?!>/,"[TABLE]\n")                                 #tables
-      string.gsub!(/<!¡¡\d+(.+?)!>/,'\1')                                       #tables
-      string.gsub!(/¡¡\d+¡/,' ')                                                #tables
-      string.gsub!(/¡/,' ')                                                     #tables tidy later
+      string.gsub!(/<!T[h]?¡.+?!>/u,"[TABLE]\n")                                 #tables
+      string.gsub!(/<!¡¡\d+(.+?)!>/u,'\1')                                       #tables
+      string.gsub!(/¡¡\d+¡/u,' ')                                                #tables
+      string.gsub!(/¡/u,' ')                                                     #tables tidy later
       string.gsub!(/<.+?>/,'')
       string.gsub!(/\{.+?\.(?:png|jpg|gif).+?\}(?:https?|file|ftp)\\\:\S+ /,' [image] ') # else image names found in search
       string.gsub!(/\s\s+/,' ')
diff --git a/lib/sisu/v0/html_format.rb b/lib/sisu/v0/html_format.rb
index d973ff5d..4ca2ff96 100644
--- a/lib/sisu/v0/html_format.rb
+++ b/lib/sisu/v0/html_format.rb
@@ -980,7 +980,7 @@ WOK
       @format,parablock=txt[0],txt[1]
       @parablock=parablock
       ##performance hit does not justify action:
-      #@parablock=if parablock=~/\S+/ and parablock !~/<!Th?¡ /m
+      #@parablock=if parablock=~/\S+/ and parablock !~/<!Th?¡ /um
       #  wrap=SiSU_text_utils::Wrap.new(parablock,70,4)
       #  wrap.line_wrap
       #else parablock
diff --git a/lib/sisu/v0/html_segments.rb b/lib/sisu/v0/html_segments.rb
index 7972619a..687000f1 100644
--- a/lib/sisu/v0/html_segments.rb
+++ b/lib/sisu/v0/html_segments.rb
@@ -174,7 +174,7 @@ module SiSU_HTML_seg
           end
           m=para[/.+?<a name="(\d+)">.*/]; @@get_hash_to=$1 if m              # changed 2002w42, again w44 ! & again 2003w16
           m=para[/^4~(\S+)/]; @@get_hash_fn=$1 if m
-          para=if para =~/<!Th?¡\s+c|<:(?:code|alt|verse|group)>/m; para.split(/\n/)
+          para=if para =~/<!Th?¡\s+c|<:(?:code|alt|verse|group)>/um; para.split(/\n/)
           else para
           end
           if para.class == String
@@ -323,7 +323,7 @@ module SiSU_HTML_seg
             end
           else para
           end
-        elsif para =~/¡|<!T[hZ]?/
+        elsif para =~/¡|<!T[hZ]?/u
           table=SiSU_HTML_shared::Table.new(para)
           para=table.table
         end
diff --git a/lib/sisu/v0/html_table.rb b/lib/sisu/v0/html_table.rb
index 12d02407..1ac39daf 100644
--- a/lib/sisu/v0/html_table.rb
+++ b/lib/sisu/v0/html_table.rb
@@ -101,8 +101,8 @@ module SiSU_HTML_table
       m=@parablock[/<!f(.+?)!>/,1]
       @@tablefoot << m if m
       @parablock.gsub!(/<!f.+?!>/,'')
-      @@tablehead=1 if @parablock =~/<!Th¡/
-      if @parablock =~/<!Th?¡.+?!~(\d+);\w\d+;\w\d+>/; @parablock=table_head($1)
+      @@tablehead=1 if @parablock =~/<!Th¡/u
+      if @parablock =~/<!Th?¡.+?!~(\d+);\w\d+;\w\d+>/u; @parablock=table_head($1)
       end
       if @parablock =~/<!TZ!>/
         tablefoot=[]
@@ -112,12 +112,12 @@ module SiSU_HTML_table
         end
       end
       if @@tablehead == 1
-        if @parablock =~/¡¡/
-          if @parablock =~/<!¡¡(\d+?)¡/
-            @parablock.gsub!(/<!¡¡(\d+?)¡/,table_row($1,true))
+        if @parablock =~/¡¡/u
+          if @parablock =~/<!¡¡(\d+?)¡/u
+            @parablock.gsub!(/<!¡¡(\d+?)¡/u,table_row($1,true))
           end
-          if @parablock =~/¡¡(\d+?)¡/
-            @parablock.gsub!(/¡¡(\d+?)¡/,table_cell($1,true))
+          if @parablock =~/¡¡(\d+?)¡/u
+            @parablock.gsub!(/¡¡(\d+?)¡/u,table_cell($1,true))
           end
           if @parablock =~/!>/
             @parablock.gsub!(/!>/,table_row_close(true))
@@ -126,11 +126,11 @@ module SiSU_HTML_table
         end
         @parablock
       else
-        if @parablock =~/<!¡¡(\d+?)¡/
-          @parablock.gsub!(/<!¡¡(\d+?)¡/,table_row($1))
+        if @parablock =~/<!¡¡(\d+?)¡/u
+          @parablock.gsub!(/<!¡¡(\d+?)¡/u,table_row($1))
         end
-        if @parablock =~/¡¡(\d+?)¡/
-          @parablock.gsub!(/¡¡(\d+?)¡/,table_cell($1))
+        if @parablock =~/¡¡(\d+?)¡/u
+          @parablock.gsub!(/¡¡(\d+?)¡/u,table_cell($1))
         end
         if @parablock =~/!>/
           @parablock.gsub!(/!>/,table_row_close)
diff --git a/lib/sisu/v0/html_tune.rb b/lib/sisu/v0/html_tune.rb
index 9e8203bd..43b0fe70 100644
--- a/lib/sisu/v0/html_tune.rb
+++ b/lib/sisu/v0/html_tune.rb
@@ -88,7 +88,7 @@ module SiSU_Tune
       data=[]
       @data.each{|x| x.strip; data << x if not x.empty?} #1.9 array?
       data.each do |para|
-        @filename_tune.puts para, "\n" #if para !~/¡/
+        @filename_tune.puts para, "\n" #if para !~/¡/u
       end
     end
     def marshal
@@ -102,91 +102,91 @@ module SiSU_Tune
       @html=html
     end
     def clean
-      @html.gsub!(/¢/,'&cent;')    # &#162;
-      @html.gsub!(/£/,'&pound;')   # &#163;
-      @html.gsub!(/¥/,'&yen;')     # &#165;
-      @html.gsub!(/§/,'&sect;')    # &#167;
-      @html.gsub!(/©/,'&copy;')    # &#169;
-      @html.gsub!(/ª/,'&ordf;')    # &#170;
-      @html.gsub!(/«/,'&laquo;')   # &#171;
-      @html.gsub!(/®/,'&reg;')     # &#174;
-      @html.gsub!(/°/,'&deg;')     # &#176;
-      @html.gsub!(/±/,'&plusmn;')  # &#177;
-      @html.gsub!(/²/,'&sup2;')    # &#178;
-      @html.gsub!(/³/,'&sup3;')    # &#179;
-      @html.gsub!(/µ/,'&micro;')   # &#181;
-      @html.gsub!(/¶/,'&para;')    # &#182;
-      @html.gsub!(/¹/,'&sup1;')    # &#185;
-      @html.gsub!(/º/,'&ordm;')    # &#186;
-      @html.gsub!(/»/,'&raquo;')   # &#187;
-      @html.gsub!(/¼/,'&frac14;')  # &#188;
-      @html.gsub!(/½/,'&frac12;')  # &#189;
-      @html.gsub!(/¾/,'&frac34;')  # &#190;
-      @html.gsub!(/×/,'&times;')   # &#215;
-      @html.gsub!(/÷/,'&divide;')  # &#247;
-      @html.gsub!(/¿/,'&iquest;')  # &#191;
-      @html.gsub!(/À/,'&Agrave;')  # &#192;
-      @html.gsub!(/Á/,'&Aacute;')  # &#193;
-      @html.gsub!(/Â/,'&Acirc;')   # &#194;
-      @html.gsub!(/Ã/,'&Atilde;')  # &#195;
-      @html.gsub!(/Ä/,'&Auml;')    # &#196;
-      @html.gsub!(/Å/,'&Aring;')   # &#197;
-      @html.gsub!(/Æ/,'&AElig;')   # &#198;
-      @html.gsub!(/Ç/,'&Ccedil;')  # &#199;
-      @html.gsub!(/È/,'&Egrave;')  # &#200;
-      @html.gsub!(/É/,'&Eacute;')  # &#201;
-      @html.gsub!(/Ê/,'&Ecirc;')   # &#202;
-      @html.gsub!(/Ë/,'&Euml;')    # &#203;
-      @html.gsub!(/Ì/,'&Igrave;')  # &#204;
-      @html.gsub!(/Í/,'&Iacute;')  # &#205;
-      @html.gsub!(/Î/,'&Icirc;')   # &#206;
-      @html.gsub!(/Ï/,'&Iuml;')    # &#207;
-      @html.gsub!(/Ð/,'&ETH;')     # &#208;
-      @html.gsub!(/Ñ/,'&Ntilde;')  # &#209;
-      @html.gsub!(/Ò/,'&Ograve;')  # &#210;
-      @html.gsub!(/Ó/,'&Oacute;')  # &#211;
-      @html.gsub!(/Ô/,'&Ocirc;')   # &#212;
-      @html.gsub!(/Õ/,'&Otilde;')  # &#213;
-      @html.gsub!(/Ö/,'&Ouml;')    # &#214;
-      @html.gsub!(/Ø/,'&Oslash;')  # &#216;
-      @html.gsub!(/Ù/,'&Ugrave;')  # &#217;
-      @html.gsub!(/Ú/,'&Uacute;')  # &#218;
-      @html.gsub!(/Û/,'&Ucirc;')   # &#219;
-      @html.gsub!(/Ü/,'&Uuml;')    # &#220;
-      @html.gsub!(/Ý/,'&Yacute;')  # &#221;
-      @html.gsub!(/Þ/,'&THORN;')   # &#222;
-      @html.gsub!(/ß/,'&szlig;')   # &#223;
-      @html.gsub!(/à/,'&agrave;')  # &#224;
-      @html.gsub!(/á/,'&aacute;')  # &#225;
-      @html.gsub!(/â/,'&acirc;')   # &#226;
-      @html.gsub!(/ã/,'&atilde;')  # &#227;
-      @html.gsub!(/ä/,'&auml;')    # &#228;
-      @html.gsub!(/å/,'&aring;')   # &#229;
-      @html.gsub!(/æ/,'&aelig;')   # &#230;
-      @html.gsub!(/ç/,'&ccedil;')  # &#231;
-      @html.gsub!(/è/,'&egrave;')  # &#232;
-      @html.gsub!(/é/,'&eacute;')  # &#233;
-      @html.gsub!(/ê/,'&ecirc;')   # &#234;
-      @html.gsub!(/ë/,'&euml;')    # &#235;
-      @html.gsub!(/ì/,'&igrave;')  # &#236;
-      @html.gsub!(/í/,'&iacute;')  # &#237;
-      @html.gsub!(/î/,'&icirc;')   # &#238;
-      @html.gsub!(/ï/,'&iuml;')    # &#239;
-      @html.gsub!(/ð/,'&eth;')     # &#240;
-      @html.gsub!(/ñ/,'&ntilde;')  # &#241;
-      @html.gsub!(/ò/,'&ograve;')  # &#242;
-      @html.gsub!(/ó/,'&oacute;')  # &#243;
-      @html.gsub!(/ô/,'&ocirc;')   # &#244;
-      @html.gsub!(/õ/,'&otilde;')  # &#245;
-      @html.gsub!(/ö/,'&ouml;')    # &#246;
-      @html.gsub!(/ø/,'&oslash;')  # &#248;
-      @html.gsub!(/ù/,'&ugrave;')  # &#250;
-      @html.gsub!(/ú/,'&uacute;')  # &#251;
-      @html.gsub!(/û/,'&ucirc;')   # &#252;
-      @html.gsub!(/ü/,'&uuml;')    # &#253;
-      @html.gsub!(/þ/,'&thorn;')   # &#254;
-      @html.gsub!(/ÿ/,'&yuml;')    # &#255;
-      @html.gsub!(/ý/,'&yacute;')
+      @html.gsub!(/¢/u,'&cent;')    # &#162;
+      @html.gsub!(/£/u,'&pound;')   # &#163;
+      @html.gsub!(/¥/u,'&yen;')     # &#165;
+      @html.gsub!(/§/u,'&sect;')    # &#167;
+      @html.gsub!(/©/u,'&copy;')    # &#169;
+      @html.gsub!(/ª/u,'&ordf;')    # &#170;
+      @html.gsub!(/«/u,'&laquo;')   # &#171;
+      @html.gsub!(/®/u,'&reg;')     # &#174;
+      @html.gsub!(/°/u,'&deg;')     # &#176;
+      @html.gsub!(/±/u,'&plusmn;')  # &#177;
+      @html.gsub!(/²/u,'&sup2;')    # &#178;
+      @html.gsub!(/³/u,'&sup3;')    # &#179;
+      @html.gsub!(/µ/u,'&micro;')   # &#181;
+      @html.gsub!(/¶/u,'&para;')    # &#182;
+      @html.gsub!(/¹/u,'&sup1;')    # &#185;
+      @html.gsub!(/º/u,'&ordm;')    # &#186;
+      @html.gsub!(/»/u,'&raquo;')   # &#187;
+      @html.gsub!(/¼/u,'&frac14;')  # &#188;
+      @html.gsub!(/½/u,'&frac12;')  # &#189;
+      @html.gsub!(/¾/u,'&frac34;')  # &#190;
+      @html.gsub!(/×/u,'&times;')   # &#215;
+      @html.gsub!(/÷/u,'&divide;')  # &#247;
+      @html.gsub!(/¿/u,'&iquest;')  # &#191;
+      @html.gsub!(/À/u,'&Agrave;')  # &#192;
+      @html.gsub!(/Á/u,'&Aacute;')  # &#193;
+      @html.gsub!(/Â/u,'&Acirc;')   # &#194;
+      @html.gsub!(/Ã/u,'&Atilde;')  # &#195;
+      @html.gsub!(/Ä/u,'&Auml;')    # &#196;
+      @html.gsub!(/Å/u,'&Aring;')   # &#197;
+      @html.gsub!(/Æ/u,'&AElig;')   # &#198;
+      @html.gsub!(/Ç/u,'&Ccedil;')  # &#199;
+      @html.gsub!(/È/u,'&Egrave;')  # &#200;
+      @html.gsub!(/É/u,'&Eacute;')  # &#201;
+      @html.gsub!(/Ê/u,'&Ecirc;')   # &#202;
+      @html.gsub!(/Ë/u,'&Euml;')    # &#203;
+      @html.gsub!(/Ì/u,'&Igrave;')  # &#204;
+      @html.gsub!(/Í/u,'&Iacute;')  # &#205;
+      @html.gsub!(/Î/u,'&Icirc;')   # &#206;
+      @html.gsub!(/Ï/u,'&Iuml;')    # &#207;
+      @html.gsub!(/Ð/u,'&ETH;')     # &#208;
+      @html.gsub!(/Ñ/u,'&Ntilde;')  # &#209;
+      @html.gsub!(/Ò/u,'&Ograve;')  # &#210;
+      @html.gsub!(/Ó/u,'&Oacute;')  # &#211;
+      @html.gsub!(/Ô/u,'&Ocirc;')   # &#212;
+      @html.gsub!(/Õ/u,'&Otilde;')  # &#213;
+      @html.gsub!(/Ö/u,'&Ouml;')    # &#214;
+      @html.gsub!(/Ø/u,'&Oslash;')  # &#216;
+      @html.gsub!(/Ù/u,'&Ugrave;')  # &#217;
+      @html.gsub!(/Ú/u,'&Uacute;')  # &#218;
+      @html.gsub!(/Û/u,'&Ucirc;')   # &#219;
+      @html.gsub!(/Ü/u,'&Uuml;')    # &#220;
+      @html.gsub!(/Ý/u,'&Yacute;')  # &#221;
+      @html.gsub!(/Þ/u,'&THORN;')   # &#222;
+      @html.gsub!(/ß/u,'&szlig;')   # &#223;
+      @html.gsub!(/à/u,'&agrave;')  # &#224;
+      @html.gsub!(/á/u,'&aacute;')  # &#225;
+      @html.gsub!(/â/u,'&acirc;')   # &#226;
+      @html.gsub!(/ã/u,'&atilde;')  # &#227;
+      @html.gsub!(/ä/u,'&auml;')    # &#228;
+      @html.gsub!(/å/u,'&aring;')   # &#229;
+      @html.gsub!(/æ/u,'&aelig;')   # &#230;
+      @html.gsub!(/ç/u,'&ccedil;')  # &#231;
+      @html.gsub!(/è/u,'&egrave;')  # &#232;
+      @html.gsub!(/é/u,'&eacute;')  # &#233;
+      @html.gsub!(/ê/u,'&ecirc;')   # &#234;
+      @html.gsub!(/ë/u,'&euml;')    # &#235;
+      @html.gsub!(/ì/u,'&igrave;')  # &#236;
+      @html.gsub!(/í/u,'&iacute;')  # &#237;
+      @html.gsub!(/î/u,'&icirc;')   # &#238;
+      @html.gsub!(/ï/u,'&iuml;')    # &#239;
+      @html.gsub!(/ð/u,'&eth;')     # &#240;
+      @html.gsub!(/ñ/u,'&ntilde;')  # &#241;
+      @html.gsub!(/ò/u,'&ograve;')  # &#242;
+      @html.gsub!(/ó/u,'&oacute;')  # &#243;
+      @html.gsub!(/ô/u,'&ocirc;')   # &#244;
+      @html.gsub!(/õ/u,'&otilde;')  # &#245;
+      @html.gsub!(/ö/u,'&ouml;')    # &#246;
+      @html.gsub!(/ø/u,'&oslash;')  # &#248;
+      @html.gsub!(/ù/u,'&ugrave;')  # &#250;
+      @html.gsub!(/ú/u,'&uacute;')  # &#251;
+      @html.gsub!(/û/u,'&ucirc;')   # &#252;
+      @html.gsub!(/ü/u,'&uuml;')    # &#253;
+      @html.gsub!(/þ/u,'&thorn;')   # &#254;
+      @html.gsub!(/ÿ/u,'&yuml;')    # &#255;
+      @html.gsub!(/ý/u,'&yacute;')
       @html
     end
   end
diff --git a/lib/sisu/v0/manpage.rb b/lib/sisu/v0/manpage.rb
index c00d74b8..0657b0b6 100644
--- a/lib/sisu/v0/manpage.rb
+++ b/lib/sisu/v0/manpage.rb
@@ -311,7 +311,7 @@ WOK
         table_message='[table omitted, see other document formats]'
         fix=[]
         data.each do |para|
-          para.gsub!(/<!Th?¡.+/m,"#@br#{table_message}")
+          para.gsub!(/<!Th?¡.+/um,"#@br#{table_message}")
           para.gsub!(/.+?<-#>/,'')                                           # remove dummy headings (used by html) #check
           para.gsub!(/_\*\s+/,'* ')                                          # bullet markup, marked down
           para.gsub!(/<sup>(.+?)<\/sup>/,'^\1^')
@@ -449,7 +449,7 @@ WOK
               #formatMono=MonoSiSU.new('<br /><a name="owner.details">Owner Details</a>')
               #@@manpage[:owner_details]=formatMono.bold_para
               #para=''
-            elsif para =~/(¡|<!Th?)/ #tables !
+            elsif para =~/(¡|<!Th?)/u #tables !
             elsif para =~/(.*)<!#!>(.*)/
               one,two=$1,$2
               format_text=Format_text_object.new(one,two)
diff --git a/lib/sisu/v0/odf.rb b/lib/sisu/v0/odf.rb
index 874f87e1..f168ddc4 100644
--- a/lib/sisu/v0/odf.rb
+++ b/lib/sisu/v0/odf.rb
@@ -440,7 +440,7 @@ module SiSU_ODF
         elsif para =~ /<:code(?:-end)?>/
           @@odf[:body] << code(para)
           @@odf[:body] << @br*2
-        elsif para =~ /<!Th?/ #elsif para =~ /<!Th?¡/
+        elsif para =~ /<!Th?/ #elsif para =~ /<!Th?¡/u
           @@odf[:body] << table(para)
           @@odf[:body] << @br*2
         else
@@ -457,7 +457,7 @@ module SiSU_ODF
         wordlist
       end
       def markup(data)                                                                 # Used for major markup instructions
-        safe_characters=/[^a-zA-Z0-9}{\/?,."';:)(><\-_&!@%~#\]\[*=$| \n+`¡]/
+        safe_characters=/[^a-zA-Z0-9}{\/?,."';:)(><\-_&!@%~#\]\[*=$| \n+`¡]/u
         dir=SiSU_Env::Info_env.new(@md.fns)
         @data_mod,@endnotes,@level,@cont,@copen,@odf_contents_close=Array.new(6){[]}
         @rcdc=false
@@ -508,10 +508,10 @@ module SiSU_ODF
           para.gsub!(/<sup>(.+?)<\/sup>/,'<text:span text:style-name="T4">\1</text:span>')
           para.gsub!(/<sub>(.+?)<\/sub>/,'<text:span text:style-name="T5">\1</text:span>')
           para.gsub!(/`/,"'")
-          para.gsub!(/­/,'-')
-          para.gsub!(/·/,'*')
-          para.gsub!(/[“”]/,'""')
-          para.gsub!(/[­–—]/,'-')   #— – chk
+          para.gsub!(/­/u,'-')
+          para.gsub!(/·/u,'*')
+          para.gsub!(/[“”]/u,'""')
+          para.gsub!(/[­–—]/u,'-')   #— – chk
           para.gsub!(/ < /i,'&#060;')
           para.gsub!(/\\copy(?:right)?\b/,'&#169;')
           para.gsub!(/\\trademark\b|\\tm\b/,'&#174;')
diff --git a/lib/sisu/v0/odf_format.rb b/lib/sisu/v0/odf_format.rb
index 05d1aefa..f704ea45 100644
--- a/lib/sisu/v0/odf_format.rb
+++ b/lib/sisu/v0/odf_format.rb
@@ -181,10 +181,10 @@ module OD_format
       m=@parablock[/<!f(.+?)!>/,1]
       @@tablefoot << m if m
       @parablock.gsub!(/<!f.+?!>/,'')
-      @@tablehead=1 if @parablock =~/<!Th¡/
-      @@table_counter+=1  if @parablock =~/<!Th?¡/
-      if @parablock =~/<!Th¡\s+c(\d+).+?!~\d+;\w\d+;\w\d+>/; @parablock=table_head(@@table_counter,$1,true)
-      elsif @parablock =~/<!T¡\s+c(\d+).+?!~\d+;\w\d+;\w\d+>/; @parablock=table_head(@@table_counter,$1)
+      @@tablehead=1 if @parablock =~/<!Th¡/u
+      @@table_counter+=1  if @parablock =~/<!Th?¡/u
+      if @parablock =~/<!Th¡\s+c(\d+).+?!~\d+;\w\d+;\w\d+>/u; @parablock=table_head(@@table_counter,$1,true)
+      elsif @parablock =~/<!T¡\s+c(\d+).+?!~\d+;\w\d+;\w\d+>/u; @parablock=table_head(@@table_counter,$1)
       end
       if @parablock =~/<!TZ!>/
         tablefoot=[]
@@ -194,12 +194,12 @@ module OD_format
         end
       end
       if @@tablehead == 1
-        if @parablock =~/¡¡/
-          if @parablock =~/<!¡¡(\d+?)¡/
-            @parablock.gsub!(/<!¡¡(\d+?)¡/,table_row($1,true))
+        if @parablock =~/¡¡/u
+          if @parablock =~/<!¡¡(\d+?)¡/u
+            @parablock.gsub!(/<!¡¡(\d+?)¡/u,table_row($1,true))
           end
-          if @parablock =~/¡¡(\d+?)¡/
-            @parablock.gsub!(/¡¡(\d+?)¡/,table_cell($1,true))
+          if @parablock =~/¡¡(\d+?)¡/u
+            @parablock.gsub!(/¡¡(\d+?)¡/u,table_cell($1,true))
           end
           if @parablock =~/!>/
             @parablock.gsub!(/!>/,table_row_close(true))
@@ -208,11 +208,11 @@ module OD_format
         end
         @parablock
       else
-        if @parablock =~/<!¡¡(\d+?)¡/
-          @parablock.gsub!(/<!¡¡(\d+?)¡/,table_row($1))
+        if @parablock =~/<!¡¡(\d+?)¡/u
+          @parablock.gsub!(/<!¡¡(\d+?)¡/u,table_row($1))
         end
-        if @parablock =~/¡¡(\d+?)¡/
-          @parablock.gsub!(/¡¡(\d+?)¡/,table_cell($1))
+        if @parablock =~/¡¡(\d+?)¡/u
+          @parablock.gsub!(/¡¡(\d+?)¡/u,table_cell($1))
         end
         if @parablock =~/!>/
           @parablock.gsub!(/!>/,table_row_close)
diff --git a/lib/sisu/v0/plaintext.rb b/lib/sisu/v0/plaintext.rb
index 62499e57..5beac25e 100644
--- a/lib/sisu/v0/plaintext.rb
+++ b/lib/sisu/v0/plaintext.rb
@@ -321,7 +321,7 @@ WOK
         table_message='[table omitted, see other document formats]'
         fix=[]
         data.each do |para|
-          para.gsub!(/<!Th?¡.+/m,"#@br#{table_message}")
+          para.gsub!(/<!Th?¡.+/um,"#@br#{table_message}")
           para.gsub!(/.+?<-#>/,'')                                           # remove dummy headings (used by html) #check
           para.gsub!(/_\*\s+/,'* ')                                          # bullet markup, marked down
           para.gsub!(/<sup>(.+?)<\/sup>/,'^\1^')
@@ -436,7 +436,7 @@ WOK
               #formatMono=MonoSiSU.new('<br /><a name="owner.details">Owner Details</a>')
               #@plaintext[:owner_details]=formatMono.bold_para
               #para=''
-            elsif para =~/(¡|<!Th?)/ #tables !
+            elsif para =~/(¡|<!Th?)/u #tables !
             elsif para =~/(.*)<!#!>(.*)/
               one,two=$1,$2
               format_text=Format_text_object.new(one,two)
diff --git a/lib/sisu/v0/shared_html_lite.rb b/lib/sisu/v0/shared_html_lite.rb
index da41dbb0..9f646790 100644
--- a/lib/sisu/v0/shared_html_lite.rb
+++ b/lib/sisu/v0/shared_html_lite.rb
@@ -194,7 +194,7 @@ GSUB
         m=parablock[/<!f(.+?)!>/,1]
         @@tablefoot<<m if m
         parablock.gsub!(/<!f.+?!>/,'')
-        @@tablehead=1 if parablock =~/<!Th¡/
+        @@tablehead=1 if parablock =~/<!Th¡/u
         parablock.gsub!(/<!Th?¡.+?!~(\d+)>/,
            #%{<table summary="normal text css" width="100%" border="0" bgcolor="white" cellpadding="2" align="center"><tr><td valign="top" align="justify"><p class="norm" id="\\1">  </p> </td><td>\n} +
            %{<table summary="normal text css" width="100%" border="0" bgcolor="white" cellpadding="2" align="center">})
@@ -207,12 +207,12 @@ GSUB
             #%{#{tablefoot}})
         end
         if @@tablehead == 1
-          if parablock =~/¡¡/
-            parablock.gsub!(/<!¡¡(\d+?)¡/,
+          if parablock =~/¡¡/u
+            parablock.gsub!(/<!¡¡(\d+?)¡/u,
               %{\n<tr>} +
               %{\n<td width="\\1%" valign="top">} +
               %{#{para_table}<b>})
-            parablock.gsub!(/¡¡(\d+?)¡/,
+            parablock.gsub!(/¡¡(\d+?)¡/u,
               %{</b></td><td width="\\1%" valign="top">} +
               %{#{para_table}<b>})
             parablock.gsub!(/!>/, '</b></td></tr>')
@@ -220,11 +220,11 @@ GSUB
           end
           parablock
         else
-          parablock.gsub!(/<!¡¡(\d+?)¡/,
+          parablock.gsub!(/<!¡¡(\d+?)¡/u,
             %{\n<tr>} +
             %{\n<td width="\\1%" valign="top">} +
             %{#{para_table}})
-          parablock.gsub!(/¡¡(\d+?)¡/,
+          parablock.gsub!(/¡¡(\d+?)¡/u,
             %{</td><td width="\\1%" valign="top">} +
             %{#{para_table}})
           parablock.gsub!(/!>/, '</td></tr>')
diff --git a/lib/sisu/v0/shared_xml.rb b/lib/sisu/v0/shared_xml.rb
index 45dec06d..fd27c664 100644
--- a/lib/sisu/v0/shared_xml.rb
+++ b/lib/sisu/v0/shared_xml.rb
@@ -166,178 +166,178 @@ module SiSU_XML_munge
           #¢£¥§©ª«®°±²³µ¶¹º»¼½¾×÷
           ##para.gsub!(//, '&#;')
           ##para.gsub!(//, '&;')
-          para.gsub!(/¢/, '&#162;') # '&cent;'   # &#162;
-          para.gsub!(/£/, '&#163;') # '&pound;'  # &#163;
-          para.gsub!(/¥/, '&#165;') # '&yen;'    # &#165;
-          para.gsub!(/§/, '&#167;') # '&sect;'   # &#167;
-          para.gsub!(/©/, '&#169;') # '&copy;'   # &#169;
-          para.gsub!(/ª/, '&#170;') # '&ordf;'   # &#170;
-          para.gsub!(/«/, '&#171;') # '&laquo;'  # &#171;
-          para.gsub!(/®/, '&#174;') # '&reg;'    # &#174;
-          para.gsub!(/°/, '&#176;') # '&deg;'    # &#176;
-          para.gsub!(/±/, '&#177;') # '&plusmn;' # &#177;
-          para.gsub!(/²/, '&#178;') # '&sup2;'   # &#178;
-          para.gsub!(/³/, '&#179;') # '&sup3;'   # &#179;
-          para.gsub!(/µ/, '&#181;') # '&micro;'  # &#181;
-          para.gsub!(/¶/, '&#182;') # '&para;'   # &#182;
-          para.gsub!(/¹/, '&#185;') # '&sup1;'   # &#185;
-          para.gsub!(/º/, '&#186;') # '&ordm;'   # &#186;
-          para.gsub!(/»/, '&#187;') # '&raquo;'  # &#187;
-          para.gsub!(/¼/, '&#188;') # '&frac14;' # &#188;
-          para.gsub!(/½/, '&#189;') # '&frac12;' # &#189;
-          para.gsub!(/¾/, '&#190;') # '&frac34;' # &#190;
-          para.gsub!(/×/, '&#215;') # '&times;'  # &#215;
-          para.gsub!(/÷/, '&#247;') # '&divide;' # &#247;
-          para.gsub!(/¿/, '&#191;') # '&iquest;' # &#191;
-          para.gsub!(/À/, '&#192;') # '&Agrave;' # &#192;
-          para.gsub!(/Á/, '&#193;') # '&Aacute;' # &#193;
-          para.gsub!(/Â/, '&#194;') # '&Acirc;'  # &#194;
-          para.gsub!(/Ã/, '&#195;') # '&Atilde;' # &#195;
-          para.gsub!(/Ä/, '&#196;') # '&Auml;'   # &#196;
-          para.gsub!(/Å/, '&#197;') # '&Aring;'  # &#197;
-          para.gsub!(/Æ/, '&#198;') # '&AElig;'  # &#198;
-          para.gsub!(/Ç/, '&#199;') # '&Ccedil;' # &#199;
-          para.gsub!(/È/, '&#200;') # '&Egrave;' # &#200;
-          para.gsub!(/É/, '&#201;') # '&Eacute;' # &#201;
-          para.gsub!(/Ê/, '&#202;') # '&Ecirc;'  # &#202;
-          para.gsub!(/Ë/, '&#203;') # '&Euml;'   # &#203;
-          para.gsub!(/Ì/, '&#204;') # '&Igrave;' # &#204;
-          para.gsub!(/Í/, '&#205;') # '&Iacute;' # &#205;
-          para.gsub!(/Î/, '&#206;') # '&Icirc;'  # &#206;
-          para.gsub!(/Ï/, '&#207;') # '&Iuml;'   # &#207;
-          para.gsub!(/Ð/, '&#208;') # '&ETH;'    # &#208;
-          para.gsub!(/Ñ/, '&#209;') # '&Ntilde;' # &#209;
-          para.gsub!(/Ò/, '&#210;') # '&Ograve;' # &#210;
-          para.gsub!(/Ó/, '&#211;') # '&Oacute;' # &#211;
-          para.gsub!(/Ô/, '&#212;') # '&Ocirc;'  # &#212;
-          para.gsub!(/Õ/, '&#213;') # '&Otilde;' # &#213;
-          para.gsub!(/Ö/, '&#214;') # '&Ouml;'   # &#214;
-          para.gsub!(/Ø/, '&#216;') # '&Oslash;' # &#216;
-          para.gsub!(/Ù/, '&#217;') # '&Ugrave;' # &#217;
-          para.gsub!(/Ú/, '&#218;') # '&Uacute;' # &#218;
-          para.gsub!(/Û/, '&#219;') # '&Ucirc;'  # &#219;
-          para.gsub!(/Ü/, '&#220;') # '&Uuml;'   # &#220;
-          para.gsub!(/Ý/, '&#221;') # '&Yacute;' # &#221;
-          para.gsub!(/Þ/, '&#222;') # '&THORN;'  # &#222;
-          para.gsub!(/ß/, '&#223;') # '&szlig;'  # &#223;
-          para.gsub!(/à/, '&#224;') # '&agrave;' # &#224;
-          para.gsub!(/á/, '&#225;') # '&aacute;' # &#225;
-          para.gsub!(/â/, '&#226;') # '&acirc;'  # &#226;
-          para.gsub!(/ã/, '&#227;') # '&atilde;' # &#227;
-          para.gsub!(/ä/, '&#228;') # '&auml;'   # &#228;
-          para.gsub!(/å/, '&#229;') # '&aring;'  # &#229;
-          para.gsub!(/æ/, '&#230;') # '&aelig;'  # &#230;
-          para.gsub!(/ç/, '&#231;') # '&ccedil;' # &#231;
-          para.gsub!(/è/, '&#232;') # '&egrave;' # &#232;
-          para.gsub!(/é/, '&#233;') # '&acute;'  # &#233;
-          para.gsub!(/ê/, '&#234;') # '&circ;'   # &#234;
-          para.gsub!(/ë/, '&#235;') # '&euml;'   # &#235;
-          para.gsub!(/ì/, '&#236;') # '&igrave;' # &#236;
-          para.gsub!(/í/, '&#237;') # '&acute;'  # &#237;
-          para.gsub!(/î/, '&#238;') # '&icirc;'  # &#238;
-          para.gsub!(/ï/, '&#239;') # '&iuml;'   # &#239;
-          para.gsub!(/ð/, '&#240;') # '&eth;'    # &#240;
-          para.gsub!(/ñ/, '&#241;') # '&ntilde;' # &#241;
-          para.gsub!(/ò/, '&#242;') # '&ograve;' # &#242;
-          para.gsub!(/ó/, '&#243;') # '&oacute;' # &#243;
-          para.gsub!(/ô/, '&#244;') # '&ocirc;'  # &#244;
-          para.gsub!(/õ/, '&#245;') # '&otilde;' # &#245;
-          para.gsub!(/ö/, '&#246;') # '&ouml;'   # &#246;
-          para.gsub!(/ø/, '&#248;') # '&oslash;' # &#248;
-          para.gsub!(/ù/, '&#250;') # '&ugrave;' # &#250;
-          para.gsub!(/ú/, '&#251;') # '&uacute;' # &#251;
-          para.gsub!(/û/, '&#252;') # '&ucirc;'  # &#252;
-          para.gsub!(/ü/, '&#253;') # '&uuml;'   # &#253;
-          para.gsub!(/þ/, '&#254;') # '&thorn;'  # &#254;
-          para.gsub!(/ÿ/, '&#255;') # '&yuml;'   # &#255;
+          para.gsub!(/¢/u, '&#162;') # '&cent;'   # &#162;
+          para.gsub!(/£/u, '&#163;') # '&pound;'  # &#163;
+          para.gsub!(/¥/u, '&#165;') # '&yen;'    # &#165;
+          para.gsub!(/§/u, '&#167;') # '&sect;'   # &#167;
+          para.gsub!(/©/u, '&#169;') # '&copy;'   # &#169;
+          para.gsub!(/ª/u, '&#170;') # '&ordf;'   # &#170;
+          para.gsub!(/«/u, '&#171;') # '&laquo;'  # &#171;
+          para.gsub!(/®/u, '&#174;') # '&reg;'    # &#174;
+          para.gsub!(/°/u, '&#176;') # '&deg;'    # &#176;
+          para.gsub!(/±/u, '&#177;') # '&plusmn;' # &#177;
+          para.gsub!(/²/u, '&#178;') # '&sup2;'   # &#178;
+          para.gsub!(/³/u, '&#179;') # '&sup3;'   # &#179;
+          para.gsub!(/µ/u, '&#181;') # '&micro;'  # &#181;
+          para.gsub!(/¶/u, '&#182;') # '&para;'   # &#182;
+          para.gsub!(/¹/u, '&#185;') # '&sup1;'   # &#185;
+          para.gsub!(/º/u, '&#186;') # '&ordm;'   # &#186;
+          para.gsub!(/»/u, '&#187;') # '&raquo;'  # &#187;
+          para.gsub!(/¼/u, '&#188;') # '&frac14;' # &#188;
+          para.gsub!(/½/u, '&#189;') # '&frac12;' # &#189;
+          para.gsub!(/¾/u, '&#190;') # '&frac34;' # &#190;
+          para.gsub!(/×/u, '&#215;') # '&times;'  # &#215;
+          para.gsub!(/÷/u, '&#247;') # '&divide;' # &#247;
+          para.gsub!(/¿/u, '&#191;') # '&iquest;' # &#191;
+          para.gsub!(/À/u, '&#192;') # '&Agrave;' # &#192;
+          para.gsub!(/Á/u, '&#193;') # '&Aacute;' # &#193;
+          para.gsub!(/Â/u, '&#194;') # '&Acirc;'  # &#194;
+          para.gsub!(/Ã/u, '&#195;') # '&Atilde;' # &#195;
+          para.gsub!(/Ä/u, '&#196;') # '&Auml;'   # &#196;
+          para.gsub!(/Å/u, '&#197;') # '&Aring;'  # &#197;
+          para.gsub!(/Æ/u, '&#198;') # '&AElig;'  # &#198;
+          para.gsub!(/Ç/u, '&#199;') # '&Ccedil;' # &#199;
+          para.gsub!(/È/u, '&#200;') # '&Egrave;' # &#200;
+          para.gsub!(/É/u, '&#201;') # '&Eacute;' # &#201;
+          para.gsub!(/Ê/u, '&#202;') # '&Ecirc;'  # &#202;
+          para.gsub!(/Ë/u, '&#203;') # '&Euml;'   # &#203;
+          para.gsub!(/Ì/u, '&#204;') # '&Igrave;' # &#204;
+          para.gsub!(/Í/u, '&#205;') # '&Iacute;' # &#205;
+          para.gsub!(/Î/u, '&#206;') # '&Icirc;'  # &#206;
+          para.gsub!(/Ï/u, '&#207;') # '&Iuml;'   # &#207;
+          para.gsub!(/Ð/u, '&#208;') # '&ETH;'    # &#208;
+          para.gsub!(/Ñ/u, '&#209;') # '&Ntilde;' # &#209;
+          para.gsub!(/Ò/u, '&#210;') # '&Ograve;' # &#210;
+          para.gsub!(/Ó/u, '&#211;') # '&Oacute;' # &#211;
+          para.gsub!(/Ô/u, '&#212;') # '&Ocirc;'  # &#212;
+          para.gsub!(/Õ/u, '&#213;') # '&Otilde;' # &#213;
+          para.gsub!(/Ö/u, '&#214;') # '&Ouml;'   # &#214;
+          para.gsub!(/Ø/u, '&#216;') # '&Oslash;' # &#216;
+          para.gsub!(/Ù/u, '&#217;') # '&Ugrave;' # &#217;
+          para.gsub!(/Ú/u, '&#218;') # '&Uacute;' # &#218;
+          para.gsub!(/Û/u, '&#219;') # '&Ucirc;'  # &#219;
+          para.gsub!(/Ü/u, '&#220;') # '&Uuml;'   # &#220;
+          para.gsub!(/Ý/u, '&#221;') # '&Yacute;' # &#221;
+          para.gsub!(/Þ/u, '&#222;') # '&THORN;'  # &#222;
+          para.gsub!(/ß/u, '&#223;') # '&szlig;'  # &#223;
+          para.gsub!(/à/u, '&#224;') # '&agrave;' # &#224;
+          para.gsub!(/á/u, '&#225;') # '&aacute;' # &#225;
+          para.gsub!(/â/u, '&#226;') # '&acirc;'  # &#226;
+          para.gsub!(/ã/u, '&#227;') # '&atilde;' # &#227;
+          para.gsub!(/ä/u, '&#228;') # '&auml;'   # &#228;
+          para.gsub!(/å/u, '&#229;') # '&aring;'  # &#229;
+          para.gsub!(/æ/u, '&#230;') # '&aelig;'  # &#230;
+          para.gsub!(/ç/u, '&#231;') # '&ccedil;' # &#231;
+          para.gsub!(/è/u, '&#232;') # '&egrave;' # &#232;
+          para.gsub!(/é/u, '&#233;') # '&acute;'  # &#233;
+          para.gsub!(/ê/u, '&#234;') # '&circ;'   # &#234;
+          para.gsub!(/ë/u, '&#235;') # '&euml;'   # &#235;
+          para.gsub!(/ì/u, '&#236;') # '&igrave;' # &#236;
+          para.gsub!(/í/u, '&#237;') # '&acute;'  # &#237;
+          para.gsub!(/î/u, '&#238;') # '&icirc;'  # &#238;
+          para.gsub!(/ï/u, '&#239;') # '&iuml;'   # &#239;
+          para.gsub!(/ð/u, '&#240;') # '&eth;'    # &#240;
+          para.gsub!(/ñ/u, '&#241;') # '&ntilde;' # &#241;
+          para.gsub!(/ò/u, '&#242;') # '&ograve;' # &#242;
+          para.gsub!(/ó/u, '&#243;') # '&oacute;' # &#243;
+          para.gsub!(/ô/u, '&#244;') # '&ocirc;'  # &#244;
+          para.gsub!(/õ/u, '&#245;') # '&otilde;' # &#245;
+          para.gsub!(/ö/u, '&#246;') # '&ouml;'   # &#246;
+          para.gsub!(/ø/u, '&#248;') # '&oslash;' # &#248;
+          para.gsub!(/ù/u, '&#250;') # '&ugrave;' # &#250;
+          para.gsub!(/ú/u, '&#251;') # '&uacute;' # &#251;
+          para.gsub!(/û/u, '&#252;') # '&ucirc;'  # &#252;
+          para.gsub!(/ü/u, '&#253;') # '&uuml;'   # &#253;
+          para.gsub!(/þ/u, '&#254;') # '&thorn;'  # &#254;
+          para.gsub!(/ÿ/u, '&#255;') # '&yuml;'   # &#255;
         end
       end
       def html(para='')
         if @sys.locale =~/utf-?8/i # instead ucs for utf8 #require 'iconv' ? Iñtërnâtiônàlizætiøn
-          para.gsub!(/¢/, '&cent;')      # &#162;
-          para.gsub!(/£/, '&pound;')     # &#163;
-          para.gsub!(/¥/, '&yen;')       # &#165;
-          para.gsub!(/§/, '&sect;')      # &#167;
-          para.gsub!(/©/, '&copy;')      # &#169;
-          para.gsub!(/ª/, '&ordf;')      # &#170;
-          para.gsub!(/«/, '&laquo;')     # &#171;
-          para.gsub!(/®/, '&reg;')       # &#174;
-          para.gsub!(/°/, '&deg;')       # &#176;
-          para.gsub!(/±/, '&plusmn;')    # &#177;
-          para.gsub!(/²/, '&sup2;')      # &#178;
-          para.gsub!(/³/, '&sup3;')      # &#179;
-          para.gsub!(/µ/, '&micro;')     # &#181;
-          para.gsub!(/¶/, '&para;')      # &#182;
-          para.gsub!(/¹/, '&sup1;')      # &#185;
-          para.gsub!(/º/, '&ordm;')      # &#186;
-          para.gsub!(/»/, '&raquo;')     # &#187;
-          para.gsub!(/¼/, '&frac14;')    # &#188;
-          para.gsub!(/½/, '&frac12;')    # &#189;
-          para.gsub!(/¾/, '&frac34;')    # &#190;
-          para.gsub!(/×/, '&times;')     # &#215;
-          para.gsub!(/÷/, '&divide;')    # &#247;
-          para.gsub!(/¿/, '&iquest;')    # &#191;
-          para.gsub!(/À/, '&Agrave;')    # &#192;
-          para.gsub!(/Á/, '&Aacute;')    # &#193;
-          para.gsub!(/Â/, '&Acirc;')     # &#194;
-          para.gsub!(/Ã/, '&Atilde;')    # &#195;
-          para.gsub!(/Ä/, '&Auml;')      # &#196;
-          para.gsub!(/Å/, '&Aring;')     # &#197;
-          para.gsub!(/Æ/, '&AElig;')     # &#198;
-          para.gsub!(/Ç/, '&Ccedil;')    # &#199;
-          para.gsub!(/È/, '&Egrave;')    # &#200;
-          para.gsub!(/É/, '&Eacute;')    # &#201;
-          para.gsub!(/Ê/, '&Ecirc;')     # &#202;
-          para.gsub!(/Ë/, '&Euml;')      # &#203;
-          para.gsub!(/Ì/, '&Igrave;')    # &#204;
-          para.gsub!(/Í/, '&Iacute;')    # &#205;
-          para.gsub!(/Î/, '&Icirc;')     # &#206;
-          para.gsub!(/Ï/, '&Iuml;')      # &#207;
-          para.gsub!(/Ð/, '&ETH;')       # &#208;
-          para.gsub!(/Ñ/, '&Ntilde;')    # &#209;
-          para.gsub!(/Ò/, '&Ograve;')    # &#210;
-          para.gsub!(/Ó/, '&Oacute;')    # &#211;
-          para.gsub!(/Ô/, '&Ocirc;')     # &#212;
-          para.gsub!(/Õ/, '&Otilde;')    # &#213;
-          para.gsub!(/Ö/, '&Ouml;')      # &#214;
-          para.gsub!(/Ø/, '&Oslash;')    # &#216;
-          para.gsub!(/Ù/, '&Ugrave;')    # &#217;
-          para.gsub!(/Ú/, '&Uacute;')    # &#218;
-          para.gsub!(/Û/, '&Ucirc;')     # &#219;
-          para.gsub!(/Ü/, '&Uuml;')      # &#220;
-          para.gsub!(/Ý/, '&Yacute;')    # &#221;
-          para.gsub!(/Þ/, '&THORN;')     # &#222;
-          para.gsub!(/ß/, '&szlig;')     # &#223;
-          para.gsub!(/à/, '&agrave;')    # &#224;
-          para.gsub!(/á/, '&aacute;')    # &#225;
-          para.gsub!(/â/, '&acirc;')     # &#226;
-          para.gsub!(/ã/, '&atilde;')    # &#227;
-          para.gsub!(/ä/, '&auml;')      # &#228;
-          para.gsub!(/å/, '&aring;')     # &#229;
-          para.gsub!(/æ/, '&aelig;')     # &#230;
-          para.gsub!(/ç/, '&ccedil;')    # &#231;
-          para.gsub!(/è/, '&egrave;')    # &#232;
-          para.gsub!(/é/, '&acute;')     # &#233;
-          para.gsub!(/ê/, '&circ;')      # &#234;
-          para.gsub!(/ë/, '&euml;')      # &#235;
-          para.gsub!(/ì/, '&igrave;')    # &#236;
-          para.gsub!(/í/, '&acute;')     # &#237;
-          para.gsub!(/î/, '&icirc;')     # &#238;
-          para.gsub!(/ï/, '&iuml;')      # &#239;
-          para.gsub!(/ð/, '&eth;')       # &#240;
-          para.gsub!(/ñ/, '&ntilde;')    # &#241;
-          para.gsub!(/ò/, '&ograve;')    # &#242;
-          para.gsub!(/ó/, '&oacute;')    # &#243;
-          para.gsub!(/ô/, '&ocirc;')     # &#244;
-          para.gsub!(/õ/, '&otilde;')    # &#245;
-          para.gsub!(/ö/, '&ouml;')      # &#246;
-          para.gsub!(/ø/, '&oslash;')    # &#248;
-          para.gsub!(/ù/, '&ugrave;')    # &#250;
-          para.gsub!(/ú/, '&uacute;')    # &#251;
-          para.gsub!(/û/, '&ucirc;')     # &#252;
-          para.gsub!(/ü/, '&uuml;')      # &#253;
-          para.gsub!(/þ/, '&thorn;')     # &#254;
-          para.gsub!(/ÿ/, '&yuml;')      # &#255;
+          para.gsub!(/¢/u, '&cent;')      # &#162;
+          para.gsub!(/£/u, '&pound;')     # &#163;
+          para.gsub!(/¥/u, '&yen;')       # &#165;
+          para.gsub!(/§/u, '&sect;')      # &#167;
+          para.gsub!(/©/u, '&copy;')      # &#169;
+          para.gsub!(/ª/u, '&ordf;')      # &#170;
+          para.gsub!(/«/u, '&laquo;')     # &#171;
+          para.gsub!(/®/u, '&reg;')       # &#174;
+          para.gsub!(/°/u, '&deg;')       # &#176;
+          para.gsub!(/±/u, '&plusmn;')    # &#177;
+          para.gsub!(/²/u, '&sup2;')      # &#178;
+          para.gsub!(/³/u, '&sup3;')      # &#179;
+          para.gsub!(/µ/u, '&micro;')     # &#181;
+          para.gsub!(/¶/u, '&para;')      # &#182;
+          para.gsub!(/¹/u, '&sup1;')      # &#185;
+          para.gsub!(/º/u, '&ordm;')      # &#186;
+          para.gsub!(/»/u, '&raquo;')     # &#187;
+          para.gsub!(/¼/u, '&frac14;')    # &#188;
+          para.gsub!(/½/u, '&frac12;')    # &#189;
+          para.gsub!(/¾/u, '&frac34;')    # &#190;
+          para.gsub!(/×/u, '&times;')     # &#215;
+          para.gsub!(/÷/u, '&divide;')    # &#247;
+          para.gsub!(/¿/u, '&iquest;')    # &#191;
+          para.gsub!(/À/u, '&Agrave;')    # &#192;
+          para.gsub!(/Á/u, '&Aacute;')    # &#193;
+          para.gsub!(/Â/u, '&Acirc;')     # &#194;
+          para.gsub!(/Ã/u, '&Atilde;')    # &#195;
+          para.gsub!(/Ä/u, '&Auml;')      # &#196;
+          para.gsub!(/Å/u, '&Aring;')     # &#197;
+          para.gsub!(/Æ/u, '&AElig;')     # &#198;
+          para.gsub!(/Ç/u, '&Ccedil;')    # &#199;
+          para.gsub!(/È/u, '&Egrave;')    # &#200;
+          para.gsub!(/É/u, '&Eacute;')    # &#201;
+          para.gsub!(/Ê/u, '&Ecirc;')     # &#202;
+          para.gsub!(/Ë/u, '&Euml;')      # &#203;
+          para.gsub!(/Ì/u, '&Igrave;')    # &#204;
+          para.gsub!(/Í/u, '&Iacute;')    # &#205;
+          para.gsub!(/Î/u, '&Icirc;')     # &#206;
+          para.gsub!(/Ï/u, '&Iuml;')      # &#207;
+          para.gsub!(/Ð/u, '&ETH;')       # &#208;
+          para.gsub!(/Ñ/u, '&Ntilde;')    # &#209;
+          para.gsub!(/Ò/u, '&Ograve;')    # &#210;
+          para.gsub!(/Ó/u, '&Oacute;')    # &#211;
+          para.gsub!(/Ô/u, '&Ocirc;')     # &#212;
+          para.gsub!(/Õ/u, '&Otilde;')    # &#213;
+          para.gsub!(/Ö/u, '&Ouml;')      # &#214;
+          para.gsub!(/Ø/u, '&Oslash;')    # &#216;
+          para.gsub!(/Ù/u, '&Ugrave;')    # &#217;
+          para.gsub!(/Ú/u, '&Uacute;')    # &#218;
+          para.gsub!(/Û/u, '&Ucirc;')     # &#219;
+          para.gsub!(/Ü/u, '&Uuml;')      # &#220;
+          para.gsub!(/Ý/u, '&Yacute;')    # &#221;
+          para.gsub!(/Þ/u, '&THORN;')     # &#222;
+          para.gsub!(/ß/u, '&szlig;')     # &#223;
+          para.gsub!(/à/u, '&agrave;')    # &#224;
+          para.gsub!(/á/u, '&aacute;')    # &#225;
+          para.gsub!(/â/u, '&acirc;')     # &#226;
+          para.gsub!(/ã/u, '&atilde;')    # &#227;
+          para.gsub!(/ä/u, '&auml;')      # &#228;
+          para.gsub!(/å/u, '&aring;')     # &#229;
+          para.gsub!(/æ/u, '&aelig;')     # &#230;
+          para.gsub!(/ç/u, '&ccedil;')    # &#231;
+          para.gsub!(/è/u, '&egrave;')    # &#232;
+          para.gsub!(/é/u, '&acute;')     # &#233;
+          para.gsub!(/ê/u, '&circ;')      # &#234;
+          para.gsub!(/ë/u, '&euml;')      # &#235;
+          para.gsub!(/ì/u, '&igrave;')    # &#236;
+          para.gsub!(/í/u, '&acute;')     # &#237;
+          para.gsub!(/î/u, '&icirc;')     # &#238;
+          para.gsub!(/ï/u, '&iuml;')      # &#239;
+          para.gsub!(/ð/u, '&eth;')       # &#240;
+          para.gsub!(/ñ/u, '&ntilde;')    # &#241;
+          para.gsub!(/ò/u, '&ograve;')    # &#242;
+          para.gsub!(/ó/u, '&oacute;')    # &#243;
+          para.gsub!(/ô/u, '&ocirc;')     # &#244;
+          para.gsub!(/õ/u, '&otilde;')    # &#245;
+          para.gsub!(/ö/u, '&ouml;')      # &#246;
+          para.gsub!(/ø/u, '&oslash;')    # &#248;
+          para.gsub!(/ù/u, '&ugrave;')    # &#250;
+          para.gsub!(/ú/u, '&uacute;')    # &#251;
+          para.gsub!(/û/u, '&ucirc;')     # &#252;
+          para.gsub!(/ü/u, '&uuml;')      # &#253;
+          para.gsub!(/þ/u, '&thorn;')     # &#254;
+          para.gsub!(/ÿ/u, '&yuml;')      # &#255;
         end
       end
       self
diff --git a/lib/sisu/v0/sysenv.rb b/lib/sisu/v0/sysenv.rb
index 28dc088b..fb3daefe 100644
--- a/lib/sisu/v0/sysenv.rb
+++ b/lib/sisu/v0/sysenv.rb
@@ -1201,9 +1201,16 @@ WOK
       "#{source_file_path}/#{file}"
     end
     def read_source_file(fns)
-      fns_array=unless fns =~/\.ssm.sst$/
-        IO.readlines(fns,'')
-      else IO.readlines("#{path.composite_file}/#{fns}",'')
+      fns_array=if RUBY_VERSION < '1.9'
+        x=unless fns =~/\.ssm.sst$/
+          IO.readlines(fns,'')
+        else IO.readlines("#{path.composite_file}/#{fns}",'')
+        end
+      else #ruby version >= '1.9'
+        x=unless fns =~/\.ssm.sst$/
+          IO.readlines(fns,'r:utf-8')
+        else IO.readlines("#{path.composite_file}/#{fns}",'r:utf-8')
+        end
       end
     end
     def path                                                                     #dir
@@ -3124,3 +3131,15 @@ module SiSU_Errors
 end
 __END__
 https? intro check 2007-09-22
+
+fns_array=unless fns =~/\.ssm.sst$/
+  if RUBY_VERSION < '1.9'
+    IO.readlines(fns,'')
+  else IO.readlines(fns,'r:utf-8')
+  end
+else 
+  if RUBY_VERSION < '1.9'
+    IO.readlines("#{path.composite_file}/#{fns}",'')
+  else IO.readlines("#{path.composite_file}/#{fns}",'r:utf-8')
+  end
+end
diff --git a/lib/sisu/v0/texinfo.rb b/lib/sisu/v0/texinfo.rb
index f96a3339..b6133ed7 100644
--- a/lib/sisu/v0/texinfo.rb
+++ b/lib/sisu/v0/texinfo.rb
@@ -159,7 +159,7 @@ module SiSU_TexInfo
       data.each do |para|
         # DEBUG 2003w16 this is a kludge, because i could not get parameters
         # from param, Sort out ... revert to more elegant solution
-        if para =~ /<!Th?¡\s+c/
+        if para =~ /<!Th?¡\s+c/u
           @@flag['tables']='y' # KLUDGE get from param
         end
         para.gsub!(/<:p[bn]>/,'')
@@ -242,7 +242,7 @@ module SiSU_TexInfo
       @tex_file=[]
       @@tableheader=0
       data.each do |para|
-        if para =~ /¡|<!T/i
+        if para =~ /¡|<!T/ui
           do_mono=TexInfoFormat::Texinfo.new(para,@md)
           para=do_mono.longtable # using longtable latex package
         end
diff --git a/lib/sisu/v0/texinfo_format.rb b/lib/sisu/v0/texinfo_format.rb
index fbf8dd9a..6564460a 100644
--- a/lib/sisu/v0/texinfo_format.rb
+++ b/lib/sisu/v0/texinfo_format.rb
@@ -374,7 +374,7 @@ WOK
     def longtable
       @end_table="\\end{longtable}"
       @row_break='\\\\\\'
-      if @para[/<!Th?¡\s+c(\d+);(.+?)!>/i]
+      if @para[/<!Th?¡\s+c(\d+);(.+?)!>/ui]
         no_of_cols,cols_width=$1,$2
         @@tableheader=1 if @para =~ /<!Th/i
         @w=cols_width.split(/;\s+/)
@@ -389,17 +389,17 @@ WOK
         @colW=@colW.join
         @@start_table="\\setlength{\\LTleft}{0pt}\n\\setlength{\\LTright}{\\fill}\n" +
           "\\begin{longtable}[hb]#@colW\n"
-        @para.gsub!(/<!Th?¡\s+c\d+?;.+!>/,"#{@@start_table}")
+        @para.gsub!(/<!Th?¡\s+c\d+?;.+!>/u,"#{@@start_table}")
       end
       if @para =~/<!TZ!>/
         @para.gsub!(/<!TZ!>/," #@end_table")
       end
-      @para.gsub!(/<!¡/,'')
+      @para.gsub!(/<!¡/u,'')
       if @@tableheader==1
-        if @para =~/¡\d+?¡(.+?)(?:¡|!)/
+        if @para =~/¡\d+?¡(.+?)(?:¡|!)/u
           tablefoot=para[/\<!f(.+?)!\>/,1]
           @para.gsub!(/\<!f(.+?)!\>/,'')
-          @para.gsub!(/¡\d+?¡(.+?)(?:¡|!)/,
+          @para.gsub!(/¡\d+?¡(.+?)(?:¡|!)/u,
           "{\\begin{tiny} {\\bfseries \\1}\\end{tiny}}&")
           @para.gsub!(/&>\s*$/,
           " #@row_break \\hline\\endhead #@row_break")
@@ -408,8 +408,8 @@ WOK
           @@number_of_cols=0
         end
       else
-        if @para =~/¡\d+?¡(.+?)(?:¡|!)/
-          @para.gsub!(/¡\d+?¡(.+?)(?:¡|!)/,"\\begin{tiny}\\1\\end{tiny}&")
+        if @para =~/¡\d+?¡(.+?)(?:¡|!)/u
+          @para.gsub!(/¡\d+?¡(.+?)(?:¡|!)/u,"\\begin{tiny}\\1\\end{tiny}&")
           @para.gsub!(/&>\s*$/," #@row_break")
         end
       end
@@ -422,7 +422,7 @@ WOK
       @end_table="\\end{tabular}"
       @row_break='\\\\\\\\'
       @break_page="#@row_break\n#@row_break \n"
-      if @para[/<!Th?¡\s+c(\d+);(.+?)!>/i]
+      if @para[/<!Th?¡\s+c(\d+);(.+?)!>/ui]
         no_of_cols,cols_width=$1,$2
         @w=cols_width.split(/;\s+/)
         @colW=[]
@@ -431,13 +431,13 @@ WOK
           @colW << "p{#{col_w}cm}" if col_w
         end
         @@start_table="\\begin{tabular}{#@colW}\n"
-        @para.gsub!(/<!Th?¡\s+c\d+?;.+!>/,"#{@@start_table}")
+        @para.gsub!(/<!Th?¡\s+c\d+?;.+!>/u,"#{@@start_table}")
       end
       if @para =~/<!TZ!>/
         @para.gsub!(/<!TZ!>/,"#@end_table")
         @@table_pg_break_counter=1
       end
-      if @para =~/<!¡/
+      if @para =~/<!¡/u
         if @@table_pg_break_counter==28 # taken from 34 ideal for portrait to 28 which suits landscape
           @para =
             "\n\n#@end_table \n" +
@@ -445,14 +445,14 @@ WOK
             "#{@@start_table}\n"
           @@table_pg_break_counter=1
         else
-          @para.gsub!(/<!¡/,'')
+          @para.gsub!(/<!¡/u,'')
           @@table_pg_break_counter+=1
           tablefoot=@para[/\<!f(.+?)!\>/]
           @para.gsub!(/\<!f(.+?)!\>/,'')
         end
       end
-      if @para =~/¡\d+?¡(.+?)(?:¡|!)/
-      @para.gsub!(/¡\d+?¡(.+?)(?:¡|!)/,"\\begin{tiny}\\1\\end{tiny}&")
+      if @para =~/¡\d+?¡(.+?)(?:¡|!)/u
+      @para.gsub!(/¡\d+?¡(.+?)(?:¡|!)/u,"\\begin{tiny}\\1\\end{tiny}&")
       @para.gsub!(/&>\s*$/,"#@row_break")
       end
       @para
diff --git a/lib/sisu/v0/texpdf.rb b/lib/sisu/v0/texpdf.rb
index d19384cf..f11e456d 100644
--- a/lib/sisu/v0/texpdf.rb
+++ b/lib/sisu/v0/texpdf.rb
@@ -302,12 +302,12 @@ module SiSU_TeX
           else para
           end
           if para.class == String
-            @md.flag_tables=true if para =~/<!Th?¡\s+c/
+            @md.flag_tables=true if para =~/<!Th?¡\s+c/u
             do_mono=SiSU_TeX_Pdf::Format_text_object.new(@md,para)
             @tex_file << do_mono.special_characters
           elsif para.class == Array
             para.each do |grp|
-              @md.flag_tables=true if grp =~/<!Th?¡\s+c/
+              @md.flag_tables=true if grp =~/<!Th?¡\s+c/u
               do_mono=SiSU_TeX_Pdf::Format_text_object.new(@md,grp)
               @tex_file << do_mono.special_characters
             end
@@ -343,7 +343,7 @@ module SiSU_TeX
         @@tableheader={ :p => 0, :l => 0 }
         @tex_file=[]
         data.each do |para|
-          @tex_file << if para =~/¡|<!T/
+          @tex_file << if para =~/¡|<!T/u
             tables_hash(@md,para) #Hash result
           else para
           end
diff --git a/lib/sisu/v0/texpdf_format.rb b/lib/sisu/v0/texpdf_format.rb
index 47b66729..ba84f323 100644
--- a/lib/sisu/v0/texpdf_format.rb
+++ b/lib/sisu/v0/texpdf_format.rb
@@ -287,7 +287,7 @@ WOK
     def longtable_landscape
       @end_table='\end{longtable}'
       @row_break='\\\\\\'
-      if @string[/<!Th?¡\s+c(\d+);(.+?)!\\~(\d+;\w\d+;\w\d+)>/]
+      if @string[/<!Th?¡\s+c(\d+);(.+?)!\\~(\d+;\w\d+;\w\d+)>/u]
         no_of_cols,cols_width,ocn=$1,$2,$3
         tw=case @md.papersize
         when /a4/i;      @tx.a4.landscape.w     #European default, SiSU default
@@ -313,24 +313,24 @@ WOK
         @colW=@colW.join
         @start_table="<~#{ocn}>\n\\setlength{\\LTleft}{0pt}\n\\setlength{\\LTright}{\\fill}\n" +
           "\\begin{tiny}\n\\begin{longtable}#@colW\n"
-        @string.gsub!(/<!Th?¡\s+c\d+?;.+!\\~\d+;\w\d+;\w\d+>/,@start_table)
+        @string.gsub!(/<!Th?¡\s+c\d+?;.+!\\~\d+;\w\d+;\w\d+>/u,@start_table)
       end
       if @string =~/<!TZ!>/
         @string.gsub!(/<!TZ!>/," #@end_table\n\\end{tiny}")
       end
-      @string.gsub!(/<!¡/,'')
+      @string.gsub!(/<!¡/u,'')
       if @@tableheader[:l] == 1
-        if @string =~/¡\d+?¡(.+?)(?:¡|!)/
+        if @string =~/¡\d+?¡(.+?)(?:¡|!)/u
           tablefoot=@string[/\<!f(.+?)!\>/,1]
           @string.gsub!(/\<!f(.+?)!\>/,'')
-          @string.gsub!(/¡\d+?¡(.+?)(?:¡|!)/,'\bfseries \1&')
+          @string.gsub!(/¡\d+?¡(.+?)(?:¡|!)/u,'\bfseries \1&')
           @string.gsub!(/&>\s*$/," #@row_break \\hline\\endhead #@row_break")
           @string="#@string \\multicolumn{#{@@number_of_cols}}{l}{\\tiny #{tablefoot}} \\\\ \\hline\n\\endfoot\n\\hline\n" if tablefoot
           @@tableheader[:l],@@number_of_cols=0,0
         end
       else
-        if @string =~/¡\d+?¡(.+?)(?:¡|!)/
-          @string.gsub!(/¡\d+?¡(.+?)(?:¡|!)/,'\1&')
+        if @string =~/¡\d+?¡(.+?)(?:¡|!)/u
+          @string.gsub!(/¡\d+?¡(.+?)(?:¡|!)/u,'\1&')
           @string.gsub!(/&>\s*$/," #@row_break")
         end
       end
@@ -341,7 +341,7 @@ WOK
     def longtable_portrait
       @end_table='\end{longtable}'
       @row_break='\\\\\\'
-      if @string[/<!Th?¡\s+c(\d+);(.+?)!\\~(\d+;\w\d+;\w\d+)>/]
+      if @string[/<!Th?¡\s+c(\d+);(.+?)!\\~(\d+;\w\d+;\w\d+)>/u]
         no_of_cols,cols_width,ocn=$1,$2,$3
         tw=case @md.papersize
         when /a4/i;      @tx.a4.portrait.w     #European default, SiSU default
@@ -368,24 +368,24 @@ WOK
         @colW=@colW.join
         @start_table="<~#{ocn}>\n\\setlength{\\LTleft}{0pt}\n\\setlength{\\LTright}{\\fill}\n" +
           "\\begin{tiny}\n\\begin{longtable}#@colW\n"
-        @string.gsub!(/<!Th?¡\s+c\d+?;.+!\\~\d+;\w\d+;\w\d+>/,"#@start_table")
+        @string.gsub!(/<!Th?¡\s+c\d+?;.+!\\~\d+;\w\d+;\w\d+>/u,"#@start_table")
       end
       if @string =~/<!TZ!>/
         @string.gsub!(/<!TZ!>/," #@end_table\n\\end{tiny}")
       end
-      @string.gsub!(/<!¡/,'')
+      @string.gsub!(/<!¡/u,'')
       if @@tableheader[:p] == 1
-        if @string =~/¡\d+?¡(.+?)(?:¡|!)/
+        if @string =~/¡\d+?¡(.+?)(?:¡|!)/u
           tablefoot=@string[/\<!f(.+?)!\>/,1]
           @string.gsub!(/\<!f(.+?)!\>/,'')
-          @string.gsub!(/¡\d+?¡(.+?)(?:¡|!)/,'\bfseries \1&')
+          @string.gsub!(/¡\d+?¡(.+?)(?:¡|!)/u,'\bfseries \1&')
           @string.gsub!(/&>\s*$/," #@row_break \\hline\\endhead #@row_break")
           @string="#@string \\multicolumn{#{@@number_of_cols}}{l}{\\tiny #{tablefoot}} \\\\ \\hline\n\\endfoot\n\\hline\n" if tablefoot
           @@tableheader[:p],@@number_of_cols=0,0
         end
       else
-        if @string =~/¡\d+?¡(.+?)(?:¡|!)/
-          @string.gsub!(/¡\d+?¡(.+?)(?:¡|!)/,'\1&')
+        if @string =~/¡\d+?¡(.+?)(?:¡|!)/u
+          @string.gsub!(/¡\d+?¡(.+?)(?:¡|!)/u,'\1&')
           @string.gsub!(/&>\s*$/," #@row_break")
         end
       end
@@ -399,7 +399,7 @@ WOK
       @end_table="\\end{tabular}"
       @row_break='\\\\\\\\'
       @break_page="#@row_break\n#@row_break \n"
-      if @string[/<!Th?¡\s+c(\d+);(.+?)!>/]
+      if @string[/<!Th?¡\s+c(\d+);(.+?)!>/u]
         no_of_cols,cols_width=$1,$2
         @w=cols_width.split(/;\s*/)
         @colW=[]
@@ -408,25 +408,25 @@ WOK
           @colW << "p{#{col_w}cm}" if col_w
         end
         @start_table="\\begin{tabular}{#@colW}\n"
-        @string.gsub!(/<!Th?¡\s+c\d+?;.+!>/,"#@start_table}")
+        @string.gsub!(/<!Th?¡\s+c\d+?;.+!>/u,"#@start_table}")
       end
       if @string =~/<!TZ!>/
         @string.gsub!(/<!TZ!>/,"#@end_table")
         @@table_pg_break_counter=1
       end
-      if @string =~/<!¡/
+      if @string =~/<!¡/u
         if @@table_pg_break_counter == 28 # taken from 34 ideal for portrait to 28 which suits landscape
           @string="\n\n#@end_table \n#@break_page#@start_table\n"
           @@table_pg_break_counter=1
         else
-          @string.gsub!(/<!¡/,'')
+          @string.gsub!(/<!¡/u,'')
           @@table_pg_break_counter+=1
           tablefoot=@string[/\<!f(.+?)!\>/,1]
           @string.gsub!(/\<!f(.+?)!\>/,'')
         end
       end
-      if @string =~/¡\d+?¡(.+?)(?:¡|!)/
-      @string.gsub!(/¡\d+?¡(.+?)(?:¡|!)/,"\\1&")
+      if @string =~/¡\d+?¡(.+?)(?:¡|!)/u
+      @string.gsub!(/¡\d+?¡(.+?)(?:¡|!)/u,"\\1&")
       @string.gsub!(/&>\s*$/,"#@row_break")
       end
       @string
@@ -438,7 +438,7 @@ WOK
       para_array=[]
       if word
         word.each do |w| # _ - / # | : ! ^ ~
-          unless para =~/^(?:0~|%+ |<!Th?¡ )/m
+          unless para =~/^(?:0~|%+ |<!Th?¡ )/um
             w.gsub!(/[\\]?~/,'<=tilde>') unless w=~/^[1-6]~|~\{|\}~|~\[|\]~|^\^~\s|~\^|\*~\S+|~#|\{t~|<~\d+;(?:[ohmu]|[0-6]:)\d+;\w\d+>/
             w.gsub!(/&#(?:126|152);/,'<=tilde>') #126 usual
             #w.gsub!(/&#(?:126|152);/,'<=tilde>') unless w=~/https?:\/\/\S+/ #126 usual
@@ -501,8 +501,8 @@ WOK
       if @@flag_code; @string.gsub!(/&/,'{\\\&}')
       else @string.gsub!(/(\s+&\s+)/,' and ')
       end
-      @string.gsub!(/§/,'\S') #latex: space between next character not preserved? #@string.gsub!(/§ /,'\S ')
-      @string.gsub!(/£/,'\pounds')
+      @string.gsub!(/§/u,'\S') #latex: space between next character not preserved? #@string.gsub!(/§ /,'\S ')
+      @string.gsub!(/£/u,'\pounds')
       @string.gsub!(/&\S+?;/,' ')
       @string.gsub!(/<a href=".+?">/,' ')
       @string.gsub!(/<\/a>/,' ')
diff --git a/lib/sisu/v0/wikispeak.rb b/lib/sisu/v0/wikispeak.rb
index 0812e81a..ec74afce 100644
--- a/lib/sisu/v0/wikispeak.rb
+++ b/lib/sisu/v0/wikispeak.rb
@@ -242,7 +242,7 @@ WOK
         table_message='[table omitted, see other document formats]'
         fix=[]
         data.each do |para|
-          para.gsub!(/<!Th?¡.+/m,"#@br#{table_message}")
+          para.gsub!(/<!Th?¡.+/um,"#@br#{table_message}")
           para.gsub!(/.+?<-#>/,'')                                           # remove dummy headings (used by html) #check
           para.gsub!(/_\*\s+/,'* ')                                           # bullet markup, marked down
           para.gsub!(/&#169;/,'©')                                           # bullet markup, marked down
@@ -334,7 +334,7 @@ WOK
               #formatMono=MonoSiSU.new('<br /><a name="owner.details">Owner Details</a>')
               #@@wiki[:owner_details]=formatMono.bold_para
               #para=''
-            elsif para =~/(¡|<!Th?)/ #tables !
+            elsif para =~/(¡|<!Th?)/u #tables !
             elsif para =~/(.*)<!#!>(.*)/
               one,two=$1,$2
               format_text=Format_text_object.new(one,two)
diff --git a/lib/sisu/v0/xml_tables.rb b/lib/sisu/v0/xml_tables.rb
index bc045837..be8c1dd1 100644
--- a/lib/sisu/v0/xml_tables.rb
+++ b/lib/sisu/v0/xml_tables.rb
@@ -87,9 +87,9 @@ module SiSU_Tables
       m=@parablock[/<!f(.+?)!>/,1]
       @@tablefoot << m if m
       @parablock.gsub!(/<!f.+?!>/,'')
-      @@tablehead=1 if @parablock =~/<!Th¡/
-      if @parablock =~/<!Th?¡/
-        @parablock.gsub!(/<!Th?¡.+?!~(\d+);\w\d+;\w\d+>/,
+      @@tablehead=1 if @parablock =~/<!Th¡/u
+      if @parablock =~/<!Th?¡/u
+        @parablock.gsub!(/<!Th?¡.+?!~(\d+);\w\d+;\w\d+>/u,
           %{\n<ocn>#@ocn</ocn><table summary="normal text css" width="100%" border="0" bgcolor="white" cellpadding="2" align="center">})
       end
       if @parablock =~/<!TZ!>/
@@ -101,12 +101,12 @@ module SiSU_Tables
         @parablock.gsub!(/<!TZ!>\s*/,"</table>\n")
       end
       if @@tablehead == 1
-        if @parablock =~/¡¡/
-          @parablock.gsub!(/<!¡¡(\d+?)¡/,
+        if @parablock =~/¡¡/u
+          @parablock.gsub!(/<!¡¡(\d+?)¡/u,
             %{<tr>
   <td width="\\1%" valign="top">
     #{@vz.paragraph_table_xml}<b>})
-          @parablock.gsub!(/¡¡(\d+?)¡/,
+          @parablock.gsub!(/¡¡(\d+?)¡/u,
             %{</b></td><td width="\\1%" valign="top">
   #{@vz.paragraph_table_xml}<b>})
           @parablock.gsub!(/!>/,"</b>\n</td>\n</tr>")
@@ -114,11 +114,11 @@ module SiSU_Tables
         end
         @parablock
       else
-        @parablock.gsub!(/<!¡¡(\d+?)¡/,
+        @parablock.gsub!(/<!¡¡(\d+?)¡/u,
           %{<tr>
   <td width="\\1%" valign="top">
     #{@vz.paragraph_table_xml}})
-        @parablock.gsub!(/¡¡(\d+?)¡/,
+        @parablock.gsub!(/¡¡(\d+?)¡/u,
           %{
   </td>
   <td width="\\1%" valign="top">
@@ -170,8 +170,8 @@ module SiSU_Tables
       m=@parablock[/<!f(.+?)!>/,1]
       @@tablefoot << m if m
       @parablock.gsub!(/<!f.+?!>/,'')
-      @@tablehead=1 if @parablock =~/<!Th¡/
-      if @parablock =~/<!Th?¡.+?!~(\d+);\w\d+;\w\d+>/; @parablock=table_head($1)
+      @@tablehead=1 if @parablock =~/<!Th¡/u
+      if @parablock =~/<!Th?¡.+?!~(\d+);\w\d+;\w\d+>/u; @parablock=table_head($1)
       end
       if @parablock =~/<!TZ!>/
         tablefoot=[]
@@ -181,12 +181,12 @@ module SiSU_Tables
         end
       end
       if @@tablehead == 1
-        if @parablock =~/¡¡/
-          if @parablock =~/<!¡¡(\d+?)¡/
-            @parablock.gsub!(/<!¡¡(\d+?)¡/,table_row($1,true))
+        if @parablock =~/¡¡/u
+          if @parablock =~/<!¡¡(\d+?)¡/u
+            @parablock.gsub!(/<!¡¡(\d+?)¡/u,table_row($1,true))
           end
-          if @parablock =~/¡¡(\d+?)¡/
-            @parablock.gsub!(/¡¡(\d+?)¡/,table_cell($1,true))
+          if @parablock =~/¡¡(\d+?)¡/u
+            @parablock.gsub!(/¡¡(\d+?)¡/u,table_cell($1,true))
           end
           if @parablock =~/!>/
             @parablock.gsub!(/!>/,table_row_close(true))
@@ -195,11 +195,11 @@ module SiSU_Tables
         end
         @parablock
       else
-        if @parablock =~/<!¡¡(\d+?)¡/
-          @parablock.gsub!(/<!¡¡(\d+?)¡/,table_row($1))
+        if @parablock =~/<!¡¡(\d+?)¡/u
+          @parablock.gsub!(/<!¡¡(\d+?)¡/u,table_row($1))
         end
-        if @parablock =~/¡¡(\d+?)¡/
-          @parablock.gsub!(/¡¡(\d+?)¡/,table_cell($1))
+        if @parablock =~/¡¡(\d+?)¡/u
+          @parablock.gsub!(/¡¡(\d+?)¡/u,table_cell($1))
         end
         if @parablock =~/!>/
           @parablock.gsub!(/!>/,table_row_close)