From ed490d0c712bed3933889bf2ac4f5512bcdb680f Mon Sep 17 00:00:00 2001
From: Chris Fenner <commits@dlp.rip>
Date: Wed, 7 Feb 2024 18:37:30 -0800
Subject: [PATCH] tweak tables so that informative tables work but trailing
 hlines don't get lost

---
 filter/divide-code-blocks.lua |  2 --
 filter/style-fenced-divs.lua  | 20 ++------------------
 filter/tabularx.lua           | 14 +++++++-------
 template/tcg.tex              | 21 +++++++++++++++++++++
 4 files changed, 30 insertions(+), 27 deletions(-)

diff --git a/filter/divide-code-blocks.lua b/filter/divide-code-blocks.lua
index df299e2..5aee241 100644
--- a/filter/divide-code-blocks.lua
+++ b/filter/divide-code-blocks.lua
@@ -3,10 +3,8 @@
 function CodeBlock(block)
     return {
         pandoc.RawInline('latex', [[
-            \vskip 0.5em
             \begin{customcodeblock}
             \textbf{\textit{\textcolor{codeblock-header}{\small \BeginDemarcated{Code}}}}
-
         ]]),
         block,
         pandoc.RawInline('latex', [[
diff --git a/filter/style-fenced-divs.lua b/filter/style-fenced-divs.lua
index d65a0ad..7af20d1 100644
--- a/filter/style-fenced-divs.lua
+++ b/filter/style-fenced-divs.lua
@@ -5,21 +5,12 @@ div_classes =
 {
   ["informative"] = {
     ["label"] = "Informative comment",
-    ["background"] = "informative-background",
-    ["header"] = "informative-header",
-    ["foreground"] = "informative-foreground",
   },
   ["note"] = {
     ["label"] = "Note",
-    ["background"] = "informative-background",
-    ["header"] = "informative-header",
-    ["foreground"] = "informative-foreground",
   },
   ["example"] = {
     ["label"] = "Example",
-    ["background"] = "informative-background",
-    ["header"] = "informative-header",
-    ["foreground"] = "informative-foreground",
   },
 }
 
@@ -28,19 +19,12 @@ function Div(el)
   if(class) then
     local class_spec = div_classes[string.lower(class)]
     if(class_spec) then
-      local color_bg = class_spec["background"]
-      local color_hdr = class_spec["header"]
-      local color_fg = class_spec["foreground"]
       local label = class_spec["label"]
 
       return{
-        pandoc.RawBlock('latex', '\\vskip 0.5em'),
-        pandoc.RawBlock('latex', string.format('\\begin{mdframed}[linewidth=0pt,backgroundcolor=%s,skipabove=\\parskip,nobreak=true]', color_bg)),
-        pandoc.RawBlock('latex', string.format('\\textbf{\\textit{\\textcolor{%s}{\\small\\BeginDemarcated{%s}}}}', color_hdr, label)),
-        pandoc.RawBlock('latex', string.format('\\color{%s}', color_fg)),
+        pandoc.RawBlock('latex', string.format('\\BeginInformative{%s}\n', label)),
         el,
-        pandoc.RawBlock('latex', string.format('\\EndDemarcated{%s}', label)),
-        pandoc.RawBlock('latex', '\\end{mdframed}')
+        pandoc.RawBlock('latex', string.format('\\EndInformative{%s}', label)),
       }
     end
   end
diff --git a/filter/tabularx.lua b/filter/tabularx.lua
index 0beba66..d368bf9 100644
--- a/filter/tabularx.lua
+++ b/filter/tabularx.lua
@@ -300,14 +300,14 @@ function Table(tbl)
                 latex_code = latex_code .. '\\hline\n'
             end
             latex_code = latex_code .. '\\endfoot\n'
+        end
 
-            -- Write out all the footer rows again for the last footer.
-            latex_code = latex_code .. TabularRows(tbl.foot.rows, true, true, plain, tbl.colspecs)
-            if not plain then
-                latex_code = latex_code .. '\\hline\n'
-            end
-            latex_code = latex_code .. '\\endlastfoot\n'
+        -- Write out all the footer rows again for the last footer.
+        latex_code = latex_code .. TabularRows(tbl.foot.rows, true, false, plain, tbl.colspecs)
+        if not plain then
+            latex_code = latex_code .. '\\hline\n'
         end
+        latex_code = latex_code .. '\\endlastfoot\n'
 
         --
         -- Body
@@ -320,7 +320,7 @@ function Table(tbl)
         end
 
         if not plain then
-            latex_code = latex_code .. '\\hline\n'
+            latex_code = latex_code .. '\\hlineifmdframed\n'
         end
 
         --
diff --git a/template/tcg.tex b/template/tcg.tex
index 6ceef10..6e5f030 100644
--- a/template/tcg.tex
+++ b/template/tcg.tex
@@ -271,6 +271,7 @@
 \definecolor{informative-header}{RGB}{75, 77, 78}
 \definecolor{informative-foreground}{RGB}{10, 10, 10}
 
+
 %
 % code block style
 %
@@ -282,6 +283,26 @@
   backgroundcolor=codeblock-background,
   skipabove=\parskip,
   nobreak=true]{customcodeblock}
+\newmdenv[
+  linewidth=0pt,
+  backgroundcolor=informative-background,
+  skipabove=\parskip,
+  nobreak=true]{informative}
+
+\newcommand{\hlineifmdframed}{}
+\newcommand{\BeginInformative}[1]{
+  % HACK: We need to add an extra hline to the ends of tables inside of notes, because
+  % (we don't know why) footers are dropped in tables inside of mdframeds.
+  \renewcommand{\hlineifmdframed}{\hline}
+  \begin{informative}
+  \textbf{\textit{\textcolor{informative-header}{\small \BeginDemarcated{#1}}}}
+  \color{informative-foreground}
+}
+\newcommand{\EndInformative}[1]{
+  \textbf{\textit{\textcolor{informative-header}{\small \EndDemarcated{#1}}}}
+  \end{informative}
+  \renewcommand{\hlineifmdframed}{}
+}
 
 \usepackage{fontspec}
 \setmainfont{Arial}