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%%
%% This is file `wtref.sty'.
%%
%% Copyright 2016-2020 Takuto ASAKURA (wtsnjp)
%% GitHub: https://github.com/wtsnjp
%% Twitter: @wtsnjp
%%
%% This package is distributed under the MIT License.
%%
% Package declaration
\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{wtref}
[2020/06/15 v0.4.0 A small extension for LaTeX2e's cross-referencing]
\def\wtrf@pkgname{WTRef}
\RequirePackage{xparse,xkeyval}
% Messages
\def\wtrf@info{\PackageInfo\wtrf@pkgname}
\def\wtrf@warn{\PackageWarningNoLine\wtrf@pkgname}
\def\wtrf@error{\PackageError\wtrf@pkgname}
% New ifs and counts
\newif\if@wtrf@use@scope@
\newif\if@wtrf@use@namespace@
\newif\if@wtrf@set@namespace@
% Utilities
\def\wtrf@name@def#1{\expandafter\def\csname #1\endcsname}
\def\wtrf@name@edef#1{\expandafter\edef\csname #1\endcsname}
\def\wtrf@name@use#1{\csname #1\endcsname}
\def\wtrf@if@reftype@not@exists#1{\@ifundefined{wtrf@#1@namespace}}
% Check commands
\def\wtrf@check@counter#1{%
\@ifundefined{c@#1}{%
\wtrf@error
{Undefined LaTeX counter `#1'}
{Check the spelling or declare new LaTeX counter}%
}{}}
\def\wtrf@check@command#1{%
\@ifundefined{#1}{}{% else
\wtrf@warn{Redefining \expandafter\string\csname #1\endcsname}}}
% Trimming spaces
\@tempcnta=\catcode`\Q
\catcode`\Q=3
\def\wtrf@trim@spaces#1{%
\romannumeral-`\q\wtrf@trim@trim@\noexpand#1Q Q}
\long\def\wtrf@trim@trim@#1 Q{\wtrf@trim@trim@@#1Q}
\long\def\wtrf@trim@trim@@#1Q#2{#1}
\catcode`\Q=\@tempcnta
\def\wtrf@trim@spaces@noexp#1{%
\unexpanded\expandafter\expandafter\expandafter
{\wtrf@trim@spaces{#1}}}
\def\wtrf@trim@spaces@in#1{%
\edef#1{\expandafter\wtrf@trim@spaces@noexp\expandafter{#1}}}
% Define keys for \newref command
\define@key[wtrf]{ns}{namespace}{%
\@wtrf@set@namespace@true
\def\wtrf@namespace@temp{#1}}
\define@key[wtrf]{ns}{nonamespace}[\@empty]{%
\@wtrf@use@namespace@false}
\define@key[wtrf]{ns}{scope}{%
\wtrf@check@counter{#1}%
\@wtrf@use@scope@true
\def\wtrf@scope@temp{#1}}
% Defining the \newref command
\NewDocumentCommand{\newref}{om}{%
\let\wtrf@namespace@temp\@empty
\@wtrf@use@namespace@true
\@wtrf@set@namespace@false
\@wtrf@use@scope@false
\IfNoValueF{#1}{\setkeys[wtrf]{ns}{#1}}%
\wtrf@@newref{#2}}
\@onlypreamble\newref
\def\wtrf@@newref#1{%
\@for\wtrf@temp@ref@type:=#1\do{%
\wtrf@trim@spaces@in\wtrf@temp@ref@type
\expandafter\wtrf@newref@pre\expandafter{\wtrf@temp@ref@type}}}
\def\wtrf@newref@pre#1{%
\wtrf@if@reftype@not@exists{#1}{%
\wtrf@newref{#1}%
}{% else
\wtrf@error
{ref type `#1' already exists}
{You can declare ref type only once}%
}}
\def\wtrf@newref#1{%
% namespace
\if@wtrf@use@namespace@
\ifx\wtrf@namespace@temp\@empty
\@wtrf@set@namespace@false
\def\wtrf@namespace@temp{#1}%
\fi
\wtrf@name@edef{wtrf@#1@namespace}{\wtrf@namespace@temp:}%
\else
\wtrf@name@def{wtrf@#1@namespace}{}%
\fi
% scope
\if@wtrf@use@scope@
\wtrf@name@edef{wtrf@#1@scope@cmd}{the\wtrf@scope@temp}%
\wtrf@name@def{wtrf@#1@scope}{\csname\wtrf@name@use{wtrf@#1@scope@cmd}\endcsname:}%
\else
\wtrf@name@def{wtrf@#1@scope}{}%
\fi
% define keys for setting styles
\define@key[wtrf]{#1-style}{refcmd}{\wtrf@name@def{wtrf@#1@refcmd}####1{##1}}%
\define@key[wtrf]{#1-style}{last sep}[\wtrf@name@use{wtrf@#1@sep}]{%
\wtrf@name@def{wtrf@#1@last@sep}{##1}}%
\define@cmdkeys[wtrf]{#1-style}[wtrf@#1@]{sep, prefix, suffix}%
% default key settings
\setkeys[wtrf]{#1-style}{%
refcmd=\ref{##1},
sep={,\space}, last sep,
prefix={}, suffix={}}%
% the \label-like command
\wtrf@check@command{#1label}%
\expandafter\DeclareExpandableDocumentCommand\csname #1label\endcsname{m}{%
\label{\wtrf@name@use{wtrf@#1@namespace}\wtrf@name@use{wtrf@#1@scope}##1}}%
% the \ref-like command
\wtrf@check@command{#1ref}%
\expandafter\DeclareExpandableDocumentCommand\csname #1ref\endcsname{om}{%
\if@wtrf@use@scope@
\IfNoValueTF{##1}
{\wtrf@name@use{wtrf@#1ref}{\wtrf@name@use{wtrf@#1@scope}}{##2}}
{\wtrf@name@use{wtrf@#1ref}{##1:}{##2}}%
\else
\wtrf@name@use{wtrf@#1ref}{}{##2}%
\fi}
% construction
\wtrf@name@def{wtrf@#1ref}##1##2{%
\wtrf@name@use{wtrf@#1@prefix}%
\wtrf@construct##2,\wtrf@qmark\wtrf@nil{##1}{#1}%
\wtrf@name@use{wtrf@#1@suffix}}
% reset \wtrf@namespace@temp
\if@wtrf@set@namespace@\else
\let\wtrf@namespace@temp\@empty
\fi}
% The constructer for \ref-like commands
\def\wtrf@qmark{\wtrf@qmark}
\def\wtrf@head#1#2\wtrf@nil{#1}
%% \wtrf@construct<head>,<rest>\wtrf@nil{<scope>}{<ref type>}
\def\wtrf@construct#1,#2\wtrf@nil#3#4{%
\wtrf@name@use{wtrf@#4@refcmd}{%
\wtrf@name@use{wtrf@#4@namespace}#3\wtrf@trim@spaces@noexp{#1}}%
\expandafter\ifx\wtrf@head#2\wtrf@nil\wtrf@qmark\else
\wtrf@construct@#2,\wtrf@qmark\wtrf@nil{#3}{#4}%
\fi}
\def\wtrf@construct@#1,#2\wtrf@nil#3#4{%
\expandafter\ifx\wtrf@head#2\wtrf@nil\wtrf@qmark
\wtrf@name@use{wtrf@#4@last@sep}%
\wtrf@name@use{wtrf@#4@refcmd}{%
\wtrf@name@use{wtrf@#4@namespace}#3\wtrf@trim@spaces@noexp{#1}}%
\else
\wtrf@name@use{wtrf@#4@sep}%
\wtrf@name@use{wtrf@#4@refcmd}{%
\wtrf@name@use{wtrf@#4@namespace}#3\wtrf@trim@spaces@noexp{#1}}%
\wtrf@construct@#2,\wtrf@qmark\wtrf@nil{#3}{#4}%
\fi}
% Defining \setrefstyle command
\NewDocumentCommand{\setrefstyle}{mm}{%
\@for\wtrf@temp@ref@type:=#1\do{%
\wtrf@trim@spaces@in\wtrf@temp@ref@type
\expandafter\wtrf@setrefstyle\expandafter{\wtrf@temp@ref@type}{#2}}}
\def\wtrf@setrefstyle#1#2{%
\wtrf@if@reftype@not@exists{#1}{%
\wtrf@error
{ref type `#1' does not exist}
{Declare ref type before using it}%
}{% else
\setkeys[wtrf]{#1-style}{#2}%
}}
% All done
\endinput
%% EOF
|
