%% `vplref.sty'
%% -- extended line number referencing with lineno.sty.

\def\filedate{2005/04/25} \def\fileversion{0.2a}

%% Copyright (C) 2004, 2005 Uwe Lück
%% -- support of lineno.sty for varioref.sty.

%% This file can be redistributed and/or modified under
%% the terms of the LaTeX Project Public License; either
%% version 1.3 of the License, or any later version.
%% The latest version of this license is in
%%   http://www.latex-project.org/lppl.txt
%% We did our best to help you, but there is NO WARRANTY.

%% USAGE:
%
% \vpagelineref{<label>} expands to
%
% a) \ref{<label>}
%    -- if on same page as \linelabel{<label>}
%
% b) \LineWithPage{<label>} -- otherwise.
%
% \LineWithPage{<label>} expands -- by default -- to
%
%   \pageref{<label>}.\ref{<label>}
%
% This can be customized by editing
%
%   \renewcommand*{\LineWithPage}[1]{\pageref{#1}.\ref{#1}}
%
% in your document preamble, after vplref.sty has been loaded
% (which may have happened through lineno.sty with option
% `addpageno').

%% IMPLEMENTATION:

\NeedsTeXFormat{LaTeX2e}[1994/12/01] %% \Declare...*
\ProvidesPackage{vplref}[\filedate\space v\fileversion \space
                         page-line cross-refs] %% UL 2011/02/13

\AtBeginDocument{\RequirePackage{lineno,varioref}}

%% Anderer Ansatz: GPNo (\FirstOnPage)

\DeclareRobustCommand*\vpagelineref[1]{{%
%   \def\reftextcurrent{\lineref{#1}}%% First vpageref arg.
  \let\reftextfaraway\LineWithPage
  \def\reftextafter{\reftextfaraway{#1}}%
  \let\reftextbefore\reftextafter
  \let\reftextfaceafter\reftextafter
  \let\reftextfacebefore\reftextafter
%% <- Looks somewhat stupid, but varioref.sty has its merits
%%    as compared with the mechanism in ednotes.sty.
  \vpageref[\ref{#1}][]{#1}%% The robust alternative.
%% Here and with \LineWithPage, \lineref seems more appropriate
%% than \ref, but it produces errors when labels have not been
%% defined. This seems to be an incompatibility with lineno.sty.
}}

%% Customizable format for different page:
\newcommand*\LineWithPage[1]{\pageref{#1}.\ref{#1}}

\endinput

VERSION HISTORY:
v0.1   2004/10/19  First, sent to Sergei Mariev.
v0.11  2004/10/19  Fit to recent varioref version;
                   sent to Sergei.
v0.2   2005/04/25  \Require... \AtBeginDocument.
v0.2a  2011/02/13  add. caption to \ProvidesPackage