v5: merge v6 to v5, version bump to 5.4.*, reason adds structure checksisu_5.4.0

* ao, document structure check, stop processing on major error
  (with error message & text at location of failure)
  [reason for version bump the addition of structure check]
* utils, add ok code marker
* ao, heading with no ocn, distinguish ~# from -#
  * ~# is general & means no ocn (for any object to which it is applied)
  * -# is relevant only for 1~ dummy headings & instructs that they should be
    removed from output where possible
  * applied so far to pdf, odt & plaintext
* ao_images, reduce warnings when ruby RMagic absent as program used directly
  * reduced dependency on ruby RMagic library (as some time way back had
    issues)
* ao, document markup structure check, skip processing file on major error
  * with error message & text at location of failure
* texpdf, urls in creator cause breakage
* texpdf, mailto markup links set for normal text objects
* texpdf, '&' in heading breaks toc (now removed from toc (not heading)), bug
  * revisit, bug
* texpdf, for urls switch to sans serif (small fontsize)
  * instead of typewriter, latex default
* texpdf, pdf colored hyperlinks configurable
  * --pdf-hyperlinks-color
    --pdf-hyperlinks-no-color or --pdf-hyperlinks-monochrome
  * ['default']['pdf_hyperlinks']='color'
    (other options switch hyperlink color off 'no-color' 'color-off'
    'monochrome')
* texpdf, pdf default font size configurable (cli & sisurc.yml) (no fractions)
  * --pdf-fontsize-12 --pdf-fontsize-8
  * default:
    texpdf_fontsize: 12
* texpdf, headings and table of contents representation
  * fixes 1~ and 2~ result in the same formatting
    1~ 2~ & 3~ now differentiated, see discussion in sisu.org under #744383
  * fixes :A smaller formatted than :B
    A~ B~ C~ now the same size, see discussion in sisu.org under #744383
  * :B and :C result in the same formatting, issue explained see sisu.org
* texpdf, (internal coding) fontface, rename texpdf_font texpdf_fontface
* texpdf, (internal coding) use symbols to identify page orientation
* param, metadata rights, line-breaks instead of semicolons separating rights
  * fixes remove trailing semicolon after :copyright:
* digests sha512 option implemented
  * options sha512 sha256 md5
  * command line --sha512
  * rcconf.yml ['defsault']['digest'] = sha512
* xml object citation numbering (docbook fictionbook)

1 files changed, 17 insertions, 7 deletions

diff --git a/lib/sisu/v5/ao_hash_digest.rb b/lib/sisu/v5/ao_hash_digest.rb
index 3f372893..1c20671f 100644
--- a/lib/sisu/v5/ao_hash_digest.rb
+++ b/lib/sisu/v5/ao_hash_digest.rb
@@ -65,7 +65,7 @@ module SiSU_AO_Hash
   class ObjectDigest
     def initialize(md,data,env=nil)
       @md,@data,@env=md,data,env
-      @env ||=SiSU_Env::InfoEnv.new(@md.fns)
+      @env ||=SiSU_Env::InfoEnv.new(@md.fns,@md)
     end
     def object_digest
     # 1. clean/stripped text without any markup, paragraph, headings etc. without endnotes
@@ -74,11 +74,11 @@ module SiSU_AO_Hash
     # [digests should not include other digests]
       data=@data.compact
       @tuned_file=[]
-      sha_ =(@env.digest.type=='sha256' ? true : false)
+      sha_ =@env.digest(@md.opt).type
       begin
         sha_ ? (require 'digest/sha2') : (require 'digest/md5')
       rescue LoadError
-        SiSU_Utils::CodeMarker.new(__LINE__,__FILE__,:fuchsia).error((sha_ ? 'digest/sha2' : 'digest/md5') + ' NOT FOUND')
+        SiSU_Utils::CodeMarker.new(__LINE__,__FILE__,:fuchsia).error(sha_ + ' NOT FOUND')
       end
       data.each do |t_o|
         unless t_o.obj.is_a?(Array)
@@ -88,11 +88,16 @@ module SiSU_AO_Hash
         && t_o.of !=:comment \
         && t_o.of !=:layout) \
         && t_o.ocn.is_a?(Fixnum)
-          if sha_
+          case sha_
+          when :sha512
+            for hash_class in [ Digest::SHA512 ]
+              @tuned_file << stamped(t_o,hash_class)
+            end
+          when :sha256
             for hash_class in [ Digest::SHA256 ]
               @tuned_file << stamped(t_o,hash_class)
             end
-          else
+          when :md5
             for hash_class in [ Digest::MD5 ]
               @tuned_file << stamped(t_o,hash_class)
             end
@@ -111,10 +116,15 @@ module SiSU_AO_Hash
           if en_plus =~/#{Mx[:en_a_o]}.+?#{Mx[:en_a_c]}|#{Mx[:en_b_o]}.+?#{Mx[:en_b_c]}/
             t_o_txt,en_open,en_txt,en_close=/(.*?)(#{Mx[:en_a_o]}|#{Mx[:en_b_o]})(.+?)(#{Mx[:en_a_c]}|#{Mx[:en_b_c]})/m.match(en_plus)[1..4]
             stripped_en=SiSU_TextRepresentation::Alter.new(en_txt).strip_clean_of_markup
-            digest_en_strip=if @env.digest.type =~/sha256/
+            digest_en_strip=case @env.digest(@md.opt).type
+            when :sha512
+              Digest::SHA512.hexdigest(stripped_en)
+            when :sha256
               Digest::SHA256.hexdigest(stripped_en)
-            else
+            when :md5
               Digest::MD5.hexdigest(stripped_en)
+            else
+              Digest::SHA256.hexdigest(stripped_en)
             end
             t_o_txt + en_open + en_txt + Mx[:id_o] + digest_en_strip + Mx[:id_c] + en_close
           else STDERR.puts "Error Exception - problem encountered with:\n#{en_plus}" #arbitrary exception, tidy up