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authorKarl Berry <karl@freefriends.org>2016-10-20 21:56:15 +0000
committerKarl Berry <karl@freefriends.org>2016-10-20 21:56:15 +0000
commitc760c6fb940eb0b42386ff8208d978cd96622f62 (patch)
tree3986b4fe09ed2badcab5a6461017922454c3bea0 /Master/texmf-dist/tex
parent34250b2e3ede4213a43893839b8dd083619df232 (diff)
banglatex (20oct16)
git-svn-id: svn://tug.org/texlive/trunk@42310 c570f23f-e606-0410-a88d-b1316a301751
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+% ----------------------------------------------------------------
+% BanglaTeX package - Enhanced LaTeX integration for Bangla
+% E-mail: adib.hasan8@gmail.com
+% Released under the LaTeX Project Public License v1.3c or later
+% See http://www.latex-project.org/lppl.txt
+% ----------------------------------------------------------------
+% This packgage symplifies the process of writing Bangla in LaTeX and
+% addresses most of the common typesetting issues. Additional features
+% include automated transition between languages and many more. (See
+% examples) The user can just type in usual LaTeX syntax and expect
+% everything to work as it should.
+% ------------------------------------------------------------------
+% Copyright (C) 2016 by Adib Hasan adib.hasan8@gmail.com
+
+% This work may be distributed and/or modified under the
+% conditions of the LaTeX Project Public License (LPPL), either
+% version 1.3c of this license or (at your option) any later
+% version. The latest version of this license is in the file:
+
+% http://www.latex-project.org/lppl.txt
+
+% This work is "maintained" (as per LPPL maintenance status) by
+% Adib Hasan
+
+% This work consists of the files: banglatex.sty,
+% banglatex.tex, and
+% banglatex.pdf
+%
+%
+\NeedsTeXFormat{LaTeX2e}
+\ProvidesPackage{banglatex}[2016/10/18 v0.1 Enhanced LaTeX integration for Bangla]
+
+\RequirePackage{polyglossia, fontspec, xkeyval, ifxetex}
+
+% Because this package depends on ucharclasses which itself
+% requires XeTeX's interchar classes
+\RequireXeTeX
+
+%Fully supported Bangla Fonts
+%Other banglafonts *are* supported but there might be issues with whitespaces.
+\def\@@Kalpurush{Kalpurush}
+\def\@Kalpurush#1{
+ \ifcase#1{Kalpurush} %name
+ \or{MatchLowercase} %Scale
+ \or{1.1} %main WordSpace
+ \or{1.5} %tt WordSpace
+ \else\fi
+}
+\def\@@SiyamRupali{SiyamRupali}
+\def\@SiyamRupali#1{
+ \ifcase#1{SiyamRupali} %name
+ \or{0.8} %Scale
+ \or{1.2} %main WordSpace
+ \or{1.8} %tt WordSpace
+ \else\fi
+}
+\def\@@SolaimanLipi{SolaimanLipi}
+\def\@SolaimanLipi#1{
+ \ifcase#1{SolaimanLipi} %name
+ \or{0.9} %Scale
+ \or{1.5} %main WordSpace
+ \or{2.1} %tt WordSpace
+ \else\fi
+}
+
+\DeclareOptionX{banglamainfont}{%
+ \if\relax\detokenize{#1}\relax
+ \errmessage{Bangla main font not defined}
+ \else
+ \def\bm@name{#1}
+ \def\bm@@name{bmfont}
+ \bm@init{\bm@name}
+ \fi
+}
+\DeclareOptionX{banglattfont}{%
+ \if\relax\detokenize{#1}\relax
+ \errmessage{Bangla tt font not defined}
+ \else
+ \def\btt@name{#1}
+ \def\btt@@name{bttfont}
+ \btt@init{\btt@name}
+ \fi
+}
+
+\newif\if@none
+\newif\if@recom
+\newif\if@full
+\@recomtrue
+\DeclareOptionX{feature}{
+ \if\relax\detokenize{#1}\relax\fi
+ \ifcase#1
+ \@recomfalse
+ \@nonetrue
+ \or\or\@fulltrue\fi
+}
+
+\newif\ifchange@num
+\change@numtrue
+\DeclareOptionX{changecounternumbering}{
+ \if\relax\detokenize{#1}\relax\fi
+ \ifcase#1\change@numfalse\fi
+}
+
+\def\bm@init#1{
+ \ifx#1\@@Kalpurush
+ \def\bm@scale{\@Kalpurush{1}}
+ \def\bm@wordspace{\@Kalpurush{2}}
+ \else\ifx#1\@@SiyamRupali
+ \def\bm@scale{\@SiyamRupali{1}}
+ \def\bm@wordspace{\@SiyamRupali{2}}
+ \else\ifx#1\@@SolaimanLipi
+ \def\bm@scale{\@SolaimanLipi{1}}
+ \def\bm@wordspace{\@SolaimanLipi{2}}
+ \else
+ \def\bm@scale{MatchLowercase}
+ \def\bm@wordspace{1}
+ \fi\fi\fi
+}
+\def\btt@init#1{
+ \ifx#1\@@Kalpurush
+ \def\btt@scale{\@Kalpurush{1}}
+ \def\btt@wordspace{\@Kalpurush{3}}
+ \else\ifx#1\@@SiyamRupali
+ \def\btt@scale{\@SiyamRupali{1}}
+ \def\btt@wordspace{\@SiyamRupali{3}}
+ \else\ifx#1\@@SolaimanLipi
+ \def\btt@scale{\@SolaimanLipi{1}}
+ \def\btt@wordspace{\@SolaimanLipi{3}}
+ \else
+ \def\btt@scale{MatchLowercase}
+ \def\btt@wordspace{1.2}
+ \fi\fi\fi
+}
+
+\ProcessOptionsX\relax
+
+%From polyglossia
+\ifchange@num
+ \setmainlanguage[changecounternumbering=true]{bengali}
+\else
+ \setmainlanguage{bengali}
+\fi
+
+\newfontfamily\bengalifont[%
+ Script=Bengali,%
+ Scale=\bm@scale,%
+ NFSSFamily=\bm@@name,%
+ WordSpace=\bm@wordspace,%
+ AutoFakeSlant,
+ AutoFakeBold
+ ]{\bm@name}
+
+\newfontfamily\bengalifonttt[%
+ Script=Bengali,%
+ Scale=\btt@scale,%
+ NFSSFamily=\btt@@name,
+ WordSpace=\btt@wordspace,%
+ AutoFakeSlant,
+ AutoFakeBold
+ ]{\btt@name}
+
+\newenvironment{latin}{\fontencoding{OT1}\ifx\f@family\btt@@name\fontfamily{lmtt}\else\fontfamily{lmr}\fi\selectfont}\relax
+
+%Devanagari is required since Bangla fullstop dari ("0964) is in
+%Devanagari block of Unicode
+\RequirePackage[Latin, Bengali, Devanagari]{ucharclasses}
+\setTransitionsForLatin{\begin{latin}}{\end{latin}}
+
+%if feature=0 is provided no other modifications will be enabled
+%However, from my personal experience, I find the following modifications to be useful.
+
+%the default for feature option is 1, which enables the recommended modifications
+\if@recom
+ \RequirePackage{titlesec, amsthm, xpatch, amsfonts, amssymb, amsmath, enumerate, chngcntr}
+ %adding a dot after the number in titles
+ \titlelabel{\thetitle.\enspace}
+
+ %making the word "proof" in proof env. bold and adding a : after it.
+ \xpatchcmd{\proof}{\itshape}{\bfseries}{}{}
+ \xpatchcmd{\proof}{\@addpunct{.}}{\@addpunct{:}}{}{}
+
+ \counterwithin{equation}{section}
+
+ %increases gap between lines
+ \linespread{1.1}
+
+ %defining a \tobangla which converts numbers in any counter to bangla
+ \def\@banglanumber#1{\expandafter\@@banglanumber\number#1\@nil}
+ \def\@@banglanumber#1{\ifx#1\@nil
+ \else\char\numexpr#1+"09E6\relax\expandafter\@@banglanumber\fi}
+ \def\tobangla#1{\expandafter\@banglanumber\csname c@#1\endcsname}
+ \def\numtobangla#1{\@@banglanumber#1\@nil}
+
+ %Because polyglossia itself defines প্রমাণ as italic. I'm making it bold.
+ \addto\captionsbengali{\renewcommand\proofname{\bfseries প্রমাণ}}
+
+ %a new solution environment
+ \newenvironment{solution}{\proof[\bfseries সমাধান]}{\endproof}
+
+ \newtheoremstyle{custom}% name
+ {3pt}% space above
+ {3pt}% space below
+ {\rm}% body font
+ {}% indent amount
+ {\bfseries}% theorem head font
+ {:}% punctuation after theorem head
+ {.5em}% space after theorem head
+ {}% theorem head spec
+ \theoremstyle{custom}
+ \newtheorem{example}{\bfseries উদাহরণ}
+ \newtheorem{problem}{\bfseries সমস্যা}
+ \newtheorem{theorem}{\bfseries উপপাদ্য}[section]
+
+ %converting all the useful counters not handled by polyglossia to bangla
+ \renewcommand{\theequation}{\thesection.\tobangla{equation}}
+ \renewcommand{\thetheorem}{\thesection.\tobangla{theorem}}
+ \renewcommand{\theexample}{\tobangla{example}}
+ \renewcommand{\theproblem}{\tobangla{problem}}
+ \renewcommand{\theenumi}{\tobangla{enumi}}
+ \renewcommand{\theenumii}{\tobangla{enumii}}
+ \renewcommand{\theenumiii}{\tobangla{enumiii}}
+ \renewcommand{\thefootnote}{\tobangla{footnote}}
+\fi
+
+%feature=2 enabes further modifiations as follows
+\if@full
+ \RequirePackage{titlesec, amsthm, xpatch, amsfonts, amssymb, amsmath, enumerate, chngcntr}
+ \theoremstyle{custom}
+ \newtheorem{corollary}{\bfseries অনুসিদ্ধান্ত}[section]
+ \newtheorem{property}{\bfseries বৈশিষ্ট্য}[section]
+ \newtheorem*{remark}{\bfseries মন্তব্য}
+ \newtheorem*{hint} {\bfseries হিন্ট}
+ \renewcommand{\thecorollary}{\thesection.\tobangla{corollary}}
+ \renewcommand{\theproperty}{\thesection.\tobangla{property}}
+ \addto\captionsbengali{\renewcommand\abstractname{\bfseries সারসংক্ষেপ}}
+ %\addto\captionsbengali{\renewcommand\referencename{\bfseries তথ্যসূত্রসমূহ}}
+ \newenvironment{motive}{\proof[\bfseries মোটিভেশন]}{\phantom\qedhere\endproof}
+ \def\equationautorefname~#1\null{(#1)\null}
+\fi
+\endinput