restyle tables

filter/table-rules.lua

@@ -0,0 +1,136 @@
+ --[[
+MIT License
+
+Copyright (c) 2017-2021 pandoc Lua filters contributors
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+tables-vrules - adds vertical rules to tables for latex output
+
+Copyright:  © 2021 Christophe Agathon <[email protected]>
+
+License:    MIT – see license for details
+
+Credits:    marijnschraagen for the original Latex hack
+
+Output:     latex, pdf.
+
+Usage:      See README.md for details
+
+--]]
+local List = require 'pandoc.List'
+
+local vars = {}
+
+function get_vars (meta)
+  vars.vrules = meta['tables-vrules']
+  vars.hrules = meta['tables-hrules']
+end
+
+function repl_midrules(m1, m2)
+  if m2:match('^\\[%w]+rule') then
+    -- don't double the rule
+    return m1 .. m2
+  else
+    return m1 .. '\n\\midrule\n' .. m2
+  end
+end
+
+function Table(table)
+  local returned_list
+  local latex_code = ''
+  local coldef =''
+  local envdef =''
+  local new_coldef =''
+  local end_line = ''
+
+  if not vars.vrules and not vars.hrules then return nil end
+
+  if FORMAT:match 'latex' then
+
+    -- Get latex code for the whole table
+    latex_code = pandoc.write ( pandoc.Pandoc({table}),'latex' )
+
+    -- Rewrite column definition to add vertical rules if needed
+    if vars.vrules then
+      envdef, begdef, coldef, enddef =
+          latex_code:match("((\\begin{longtable}%[[^%]]*%]{@{})(.*)(@{}}))")
+
+      if coldef then
+        if coldef:match('^[lrc]+$') then
+          -- old style
+          new_coldef = coldef:gsub('(.)', '|%1') .. '|'
+        else
+          -- asuming new style
+	  new_coldef = coldef:gsub('(>)', '|%1') .. '|'
+	end
+	latex_code = latex_code:sub(envdef:len() + 1)
+      end
+    end
+
+    -- Add \midrules after each row if needed
+    if vars.hrules then
+      latex_code = latex_code:gsub('(\\\\\n)([\\%w]+)', repl_midrules)
+    end
+
+    -- Return modified latex code as a raw block
+    if vars.vrules then
+      returned_list = List:new{pandoc.RawBlock('tex',
+                               begdef .. new_coldef .. enddef ..
+                               latex_code)}
+    else
+      returned_list = List:new{pandoc.RawBlock('tex', latex_code)}
+    end
+  end
+  return returned_list
+end
+
+function Meta(meta)
+  -- We have to add this since Pandoc doesn't because there are no
+  -- table anymore in the AST. We converted them in RawBlocks
+
+  if not vars.vrules and not vars.hrules then return nil end
+  includes = [[
+%begin tables-vrules.lua
+\usepackage{longtable,booktabs,array}
+\usepackage{calc} % for calculating minipage widths
+% Correct order of tables after \paragraph or \subparagraph
+\usepackage{etoolbox}
+\makeatletter
+\patchcmd\longtable{\par}{\if@noskipsec\mbox{}\fi\par}{}{}
+\makeatother
+% Allow footnotes in longtable head/foot
+\IfFileExists{footnotehyper.sty}{\usepackage{footnotehyper}}{\usepackage{footnote}}
+\makesavenoteenv{longtable}
+\setlength{\aboverulesep}{0pt}
+\setlength{\belowrulesep}{0pt}
+\renewcommand{\arraystretch}{1.3}
+%end tables-vrules.lua
+]]
+
+  if meta['header-includes'] then
+    table.insert(meta['header-includes'], pandoc.RawBlock('tex', includes))
+  else
+    meta['header-includes'] = List:new{pandoc.RawBlock('tex', includes)}
+  end
+
+  return meta
+end
+
+return {{Meta = get_vars}, {Table = Table}, {Meta = Meta}}

template/eisvogel.latex

@@ -193,21 +193,21 @@ $endif$
 \sloppy
 
 % Customizations to the behavior of tables
-$if(tables)$
 \usepackage{longtable,booktabs,array}
 $if(multirow)$
 \usepackage{multirow}
 $endif$
 \usepackage{calc} % for calculating minipage widths
-% Correct order of tables after \paragraph or \subparagraph
+
+% % Correct order of tables after \paragraph or \subparagraph
 \usepackage{etoolbox}
 \makeatletter
 \patchcmd\longtable{\par}{\if@noskipsec\mbox{}\fi\par}{}{}
 \makeatother
-% Allow footnotes in longtable head/foot
+
+% % Allow footnotes in longtable head/foot
 \IfFileExists{footnotehyper.sty}{\usepackage{footnotehyper}}{\usepackage{footnote}}
 \makesavenoteenv{longtable}
-$endif$
 
 \usepackage{footnotebackref}
 $if(graphics)$
@@ -413,16 +413,14 @@ $endif$
 %
 % tables
 %
-$if(tables)$
-
-\definecolor{table-row-color}{HTML}{C0C0C0}
-\definecolor{table-alt-color}{HTML}{DADADA}
-\definecolor{table-rule-color}{HTML}{FFFFFF}
+\definecolor{table-row-color}{HTML}{E0E0E0}
+\definecolor{table-alt-color}{HTML}{E0E0E0}
+\definecolor{table-rule-color}{HTML}{4D4D4D}
 
 \arrayrulecolor{table-rule-color}     % color of \toprule, \midrule, \bottomrule
-\setlength\heavyrulewidth{0em} % thickness of \toprule, \bottomrule
-\setlength\lightrulewidth{0em} % thickness of \midrule
-\setlength\arrayrulewidth{0em} % thickness of array rules
+\setlength\heavyrulewidth{1pt} % thickness of \toprule, \bottomrule
+\setlength\lightrulewidth{1pt} % thickness of \midrule
+\setlength\arrayrulewidth{1pt} % thickness of array rules
 \renewcommand{\arraystretch}{1.3}     % spacing (padding)
 
 $if(table-use-row-colors)$
@@ -432,7 +430,6 @@ $if(table-use-row-colors)$
 \appto{\endhead}{\showrowcolors}{}{}
 \appto{\endfirsthead}{\showrowcolors}{}{}
 $endif$
-$endif$
 
 %
 % remove paragraph indentation