From 28beeb84d780edd5fe55b49eeeb14a502f0721e1 Mon Sep 17 00:00:00 2001
From: Robert Alessi <alessi@robertalessi.net>
Date: Mon, 12 Oct 2020 12:34:36 +0200
Subject: new global option 'verse'

---
 ekdosis.dtx | 81 ++++++++++++++++++++++++++++++++++++++++++++++---------------
 1 file changed, 61 insertions(+), 20 deletions(-)

diff --git a/ekdosis.dtx b/ekdosis.dtx
index d3e2bd5..811b4f2 100644
--- a/ekdosis.dtx
+++ b/ekdosis.dtx
@@ -360,7 +360,7 @@ along with this program.  If not, see
 \def\sg#1{\textancientgreek{#1}}
 \usepackage[Old Standard]{mathfont}
 \usepackage{arabluatex}
-\usepackage[parnotes=roman,teiexport=tidy]{ekdosis}
+\usepackage[parnotes=roman,teiexport=tidy,verse]{ekdosis}
 \input{ekdosis-cfg}
 \AddxmlBibResource{bibdata.xml}
 \usepackage{booktabs}
@@ -5022,7 +5022,7 @@ Sample text with a \textcolor{red}{word} in red.
       \lem[source=Drak, type=emendation]{ne morem}
       \rdg[wit={L, F}]{me morem}
       \rdg[wit={O, V}]{memorem}
-    } et pugnae signum exspectate petendae:
+    } et pugnae signum exspectate petendae:\\
   \end{ekdverse}
 \end{ekdosis}
 \end{minted}
@@ -5035,8 +5035,8 @@ Sample text with a \textcolor{red}{word} in red.
 %
 % \needspace{7\baselineskip}
 % \begin{alignment}[flush,tcols=1,texts=specimen,apparatus=specimen]
-% \resetlinenumber[30]\rightlinenumbers
-% \setlength{\linenumbersep}{-1.5in}
+% \setverselinenums{30}{0}
+% \setlength{\vrightskip}{-1.5in}
 %   \begin{specimen}
 %     \begin{ekdverse}
 %       Sed uos, quorum oculos atque ora humentia uidi,\\
@@ -5045,7 +5045,7 @@ Sample text with a \textcolor{red}{word} in red.
 %         \lem[source=sDrak, type=emendation]{ne morem}
 %         \rdg[wit={sL, sF}]{me morem}
 %         \rdg[wit={sO, sV}]{memorem}
-%       } et pugnae signum exspectate petendae:
+%       } et pugnae signum exspectate petendae:\\
 %     \end{ekdverse}
 %   \end{specimen}
 % \end{alignment}
@@ -5956,7 +5956,8 @@ Sample text with a \textcolor{red}{word} in red.
       \AtBeginDocument{\luadirect{ekdosis.setekddivsfalse()}}}},
   initial divs = ekdosis,
   unknown-choice divs = \PackageError{ekdosis}{unknown divs=#1}{`divs'
-    must be either `ekdosis' or `latex'.}, 
+    must be either `ekdosis' or `latex'.},
+  bool verse = \if@pkg@verse,
   choice parnotes = {false = {},
     true = {\@pkg@parnotestrue},
     roman = {\@pkg@parnotestrue\@parnotesromantrue}},
@@ -5996,6 +5997,9 @@ Sample text with a \textcolor{red}{word} in red.
 \RequirePackage{ltxcmds}
 \RequirePackage{pdftexcmds}
 \RequirePackage{ifoddpage}
+\if@pkg@verse
+  \RequirePackage{verse}
+\fi
 \if@pkg@parnotes
   \RequirePackage{parnotes}
 \fi
@@ -6669,6 +6673,9 @@ Sample text with a \textcolor{red}{word} in red.
     lineation=#1}{`lineation' must be either `page' or `document'.},
   code modulonum = \chardef\c@linenumbermodulo#1\relax,
   noval modulo = \modulolinenumbers,
+  code vmodulonum = \if@pkg@verse\poemlines{#1}\fi,
+  initial vmodulonum = 1,
+  noval vmodulo = \if@pkg@verse\poemlines{5}\fi,
   choice numbers = {elided = \ekd@elidednumberstrue,
     full = \ekd@elidednumbersfalse},
   unknown-choice numbers = \PackageError{ekdosis}{unknown
@@ -7636,21 +7643,51 @@ Sample text with a \textcolor{red}{word} in red.
 }
 %    \end{macrocode}
 % \end{macro}
-% A very basic and provisional implementation of poetry lines
-% follows:---
+% If \pkg{ekdosis} be loaded with the |verse| global option, the
+% \env{verse} environment needs to be redefined so that lines of
+% poetry are numbered continuously. Additionally,
+% \cs{verselinenumfont} is initially set to
+% \cs{normalfont}\cs{footnotesize}.
 %    \begin{macrocode}
-\newlength{\ekdverseindentlength}
-\setlength{\ekdverseindentlength}{\parindent}
-\newenvironment*{ekdverse}[1][\ekdverseindentlength]{
-  \begin{list}{}{%
-      \setlength{\leftmargin}{#1}
-      \setlength{\itemsep}{0pt}
-      \setlength{\topsep}{0pt}
-      \setlength{\partopsep}{0pt}
-    }
-  \item[]
-  }{\end{list}}
+\if@pkg@verse
+\verselinenumfont{\normalfont\footnotesize}
+\setcounter{poemline}{1}
+\renewenvironment{verse}[1][\linewidth]{%
+  \stepcounter{verse@envctr}%
+  \setcounter{vslineno}{1}%
+  \let\\=\@vscentercr
+  \list{}{\itemsep \z@
+    \itemindent  -\vindent%
+    \listparindent\itemindent
+    \parsep       \stanzaskip
+    \ifdim #1 < \linewidth
+    \rightmargin        \z@
+    \setlength{\leftmargin}{\linewidth}%
+    \addtolength{\leftmargin}{-#1}%
+    \addtolength{\leftmargin}{-0.5\leftmargin}%
+    \else
+    \rightmargin        \leftmargin
+    \fi
+    \addtolength{\leftmargin}{\vindent}}%
+\item[]%
+}{\endlist}
+\fi
 %    \end{macrocode}
+% \begin{environment}{ekdverse}
+%   \env{ekdverse} provides an implementation of poetry lines. It is
+%   set to use either the \pkg{lineno} or the \pkg{verse} package
+%   depending on the value that is passed to the global option
+%   |verse|:---
+%    \begin{macrocode}
+\NewDocumentEnvironment{ekdverse}{}{%
+  \if@pkg@verse
+  \nolinenumbers
+  \let\linelabel\label
+  \fi
+  \begin{verse}}
+  {\end{verse}}
+%    \end{macrocode}
+% \end{environment}
 % \begin{environment}{ekdpar}
 %   When |autopar| is set to |false| by means of \cs{SetTEIxmlExport},
 %   \env{ekdpar}\---or any other environment set to be inserted within
@@ -8049,6 +8086,10 @@ local cmdtotags = {
 local texpatttotags = {
    {a="\\addentries%s+%[(.-)%]{(.-)}", b=""},
    {a="\\addentries%s+{(.-)}", b=""},
+   {a="\\setverselinenums%s+{(.-)}{(.-)}", b=""},
+   {a="\\resetlinenumber%s+%[(.-)%]", b=""},
+   {a="\\resetlinenumber%s+", b=""},
+   {a="\\poemlines%s+{(.-)}", b=""},
    {a="\\pagebreak%s+%[[1-4]%]", b=""},
    {a="\\pagebreak%s+", b=""},
    {a="\\altrfont%s+", b=""},
@@ -8278,7 +8319,7 @@ end
 
 local function linestotei(str)
 --   str = "\n<l>"..str
-   str = string.gsub(str, "^%s?(.-)%s?$", "\n<l>%1</l>\n")
+   str = string.gsub(str, "^%s?(.-)\\\\%!?%s?$", "\n<l>%1</l>\n")
 --   str = gsub(str, endpoem, "</l>\n")
    str = gsub(str, poemline * spcenc^-1 * lpeg.P("&gt;"), "\n<lb/>")
    str = gsub(str, poemline * spcenc^-1, "</l>\n<l>")
-- 
cgit v1.2.3