From 7d42c7a0b6c208298c50b08eafe627ec838c6edf Mon Sep 17 00:00:00 2001
From: Ralph Amissah <ralph@amissah.com>
Date: Wed, 31 Dec 2008 00:34:12 -0500
Subject: latex/pdf tilde mark (bug in texlive, missing (at this instant)
 provide workaround)

---
 lib/sisu/v0/texpdf.rb        |  1 +
 lib/sisu/v0/texpdf_format.rb | 12 ++++++++++--
 2 files changed, 11 insertions(+), 2 deletions(-)

(limited to 'lib/sisu')

diff --git a/lib/sisu/v0/texpdf.rb b/lib/sisu/v0/texpdf.rb
index abafb30f..1cad7ca5 100644
--- a/lib/sisu/v0/texpdf.rb
+++ b/lib/sisu/v0/texpdf.rb
@@ -545,6 +545,7 @@ module SiSU_TeX
 \\makeatother
 \\makeatother
 \\chardef\\txtbullet="2022
+\\chardef\\tilde="7E
 % \\sloppy
 \\begin{document}
 WOK
diff --git a/lib/sisu/v0/texpdf_format.rb b/lib/sisu/v0/texpdf_format.rb
index 2efec5c4..e156c67a 100644
--- a/lib/sisu/v0/texpdf_format.rb
+++ b/lib/sisu/v0/texpdf_format.rb
@@ -1103,7 +1103,8 @@ WOK
       while string =~/(http:\/\/\S+?)(?:<=tilde>\S+)+/ #tilde in urls \href treated differently from text
         string.gsub!(/(http:\/\/\S+?)(?:<=tilde>(\S+))+/,'\1~\2')
       end
-      string.gsub!(/<=tilde>/,'{$\sim$}')
+      string.gsub!(/<=tilde>/,'{$\tilde$}')
+      #string.gsub!(/<=tilde>/,'{$\sim$}')
       string.gsub!(/<=pipe>/,'{\textbar}')
       string.gsub!(/<=caret>/,'{\^{~}}')
       #string.gsub!(/<=caret>/,'\^{}')
@@ -1211,6 +1212,12 @@ WOK
       else string.gsub!(/&/,'<=amp>')
       #else string.gsub!(/(\s+&\s+)/,' and ')
       end
+      if @@flag_code;
+        string.gsub!(/\\~(\\\{)/,'{$\tilde$}\1')
+        string.gsub!(/(\\\})\\~/,'\1{$\tilde$}')
+        string.gsub!(/\\~(\[)/,'{$\tilde$}\1')
+        string.gsub!(/(\])\\~/,'\1{$\tilde$}')
+      end
       string.gsub!(/§/u,'\S') #latex: space between next character not preserved? #string.gsub!(/§ /,'\S ')
       string.gsub!(/£/u,'\pounds')
       string.gsub!(/&\S+?;/,' ')
@@ -1283,7 +1290,8 @@ WOK
       while string =~/(http:\/\/\S+?)(?:<=tilde>\S+)+/ #tilde in urls \href treated differently from text
         string.gsub!(/(http:\/\/\S+?)(?:<=tilde>(\S+))+/,'\1~\2')
       end
-      string.gsub!(/<=tilde>/,'{$\sim$}')
+      string.gsub!(/<=tilde>/,'{$\tilde$}')
+      #string.gsub!(/<=tilde>/,'{$\sim$}')
       string.gsub!(/<=pipe>/,'{\textbar}')
       string.gsub!(/<=caret>/,'{\^{~}}')
       #string.gsub!(/<=caret>/,'\^{}')
-- 
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