From 88ed8a0c1376fbe6d45059694ce31db597fde3e9 Mon Sep 17 00:00:00 2001
From: Ralph Amissah <ralph.amissah@gmail.com>
Date: Tue, 14 Apr 2020 11:10:59 -0400
Subject: ruby 2.7 fix

---
 lib/sisu/texpdf.rb | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

(limited to 'lib/sisu/texpdf.rb')

diff --git a/lib/sisu/texpdf.rb b/lib/sisu/texpdf.rb
index 57202bfd..923b7ad1 100644
--- a/lib/sisu/texpdf.rb
+++ b/lib/sisu/texpdf.rb
@@ -639,7 +639,7 @@ module SiSU_TeX
             dob
           else 'error' #should never occur
           end
-          dob=enclose(dob) unless dob.tmp =~/^$/
+          dob=enclose(dob) unless (dob.tmp.is_a?(String) && dob.tmp =~/^$/)
           dob
         else
           tst=SiSU_TeX_Pdf::FormatTextObject.new(@md,dob)
@@ -710,11 +710,11 @@ module SiSU_TeX
               dob.tmp=tst.hang
             else
               dob.tmp=dob.tmp.strip
-              dob=enclose(dob) unless dob.tmp =~/^$/
+              dob=enclose(dob) unless (dob.tmp.is_a?(String) && dob.tmp =~/^$/)
             end
           else
             dob.tmp=dob.tmp.strip unless dob.is==:code
-            dob=enclose(dob) unless dob.tmp =~/^$/
+            dob=enclose(dob) unless (dob.tmp.is_a?(String) && dob.tmp =~/^$/)
           end
           if dob.is_a?(String)
             dob.tmp=dob.tmp.gsub(/\s*(?:#{Mx[:br_line]}|#{Mx[:br_nl]})\s*/,' \newline ').   #% tread with care
@@ -722,20 +722,20 @@ module SiSU_TeX
           end
           dob
         end
-        if dob.tmp =~/(?:#{Mx[:url_o]}\S+?#{Mx[:url_c]}|image\b)/m \
+        if (dob.tmp.is_a?(String) and dob.tmp =~/(?:#{Mx[:url_o]}\S+?#{Mx[:url_c]}|image\b)/m) \
         && dob.is !=:code
           dob=SiSU_TeX_Pdf::BareUrls.new(@md,dob).bare_urls
           tst=SiSU_TeX_Pdf::FormatTextObject.new(@md,dob)
           dob=tst.urls_txt_and_images
           dob
-        elsif dob.tmp =~/https?:\/\/\S+\b/m \
+        elsif (dob.tmp.is_a?(String) and dob.tmp  =~/https?:\/\/\S+\b/m) \
         && dob.is ==:code \
         && @codeblock_box !='listings'
           dob=SiSU_TeX_Pdf::BareUrls.new(@md,dob).bare_urls_in_code
           dob
         end
         if dob.class !=Hash \
-        && dob.tmp =~/#{Mx[:lnk_o]}.+?#{Mx[:lnk_c]}image\b/ \
+        && (dob.tmp.is_a?(String) and dob.tmp =~/#{Mx[:lnk_o]}.+?#{Mx[:lnk_c]}image\b/) \
         && dob.is !=:code
           tst=SiSU_TeX_Pdf::FormatTextObject.new(@md,dob)
         end
-- 
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