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-rw-r--r--macros/xetex/latex/xepersian-hm/xepersian-hm-doc.ltx79
1 files changed, 76 insertions, 3 deletions
diff --git a/macros/xetex/latex/xepersian-hm/xepersian-hm-doc.ltx b/macros/xetex/latex/xepersian-hm/xepersian-hm-doc.ltx
index 1a2d88f8aa..ba04fee903 100644
--- a/macros/xetex/latex/xepersian-hm/xepersian-hm-doc.ltx
+++ b/macros/xetex/latex/xepersian-hm/xepersian-hm-doc.ltx
@@ -8,8 +8,11 @@
%% this license is at: http://www.latex-project.org/lppl.txt
%%
\documentclass{ltxdoc}
+\usepackage{graphicx}
\usepackage{longtable}
\usepackage{hypdoc}
+\usepackage{xepersian-hm}
+\settextfont[Scale=1]{HM XKayhan}
\title{
The \textsf{xepersian-hm} package\\Fixing kashida in xepersian\\User Documentation
@@ -24,9 +27,12 @@
}
}
-\date{Released \quad 2020-05-01 \quad v0.5c}
+\date{Released \quad 2020-05-07 \quad v0.5d}
+\let\tmpthepage\thepage
+\renewcommand{\thepage}{\lr{\Large\textbf\tmpthepage}}
\begin{document}
+\begin{latin}
\maketitle
@@ -49,6 +55,61 @@ I will do my best to fix all the bugs you report, but, unfortunately,
time is a big hurdle to overcome; so, my apologies in advance for those
which I cannot make time to fix.
+\section{Brief outline of the issues}
+
+Kashida is one of the most important features that must be included in any
+Persian typesetter. In xepersian this feature is implemented but with some
+problems. These problems along withe fixes in xepersian-hm are briefly:
+
+\newcounter{bean}
+ \begin{list}{P-\Roman{bean}}{\usecounter{bean}\setlength{\rightmargin}{\leftmargin}}
+ \item In \textsf{xepersian} overlapping of glyphs occurs in letter
+ combinations such as "\rl{‏ب‍ + ‍ی‏}", "\rl{‏ت‍ + ‍ی‏}", and
+ "\rl{‏پ‍ + ‍ی‏}" because the character
+ \textsf{U+FEF0 (ARABIC LETTER FARSI YEH FINAL FORM)} is replaced with
+ another character. This is fixed by modifying the fixed part of the
+ glue inserted between the consecutive characters. Furthermore, both,
+ the fixed and the stretchable parts of the glue can be changed by the
+ user.
+ \item In letter combinations such as "\rl{‏ه‍ + ‍ی‏}", in \textsf{xepersian},
+ the character \textsf{U+FEEB (ARABIC LETTER HEH INITIAL FORM)} is
+ replaced with \textsf{U+06BE (ARABIC LETTER HEH DOACHASHEMEE)}. This
+ is fixed by inserting the character \textsf{U+200E} before the
+ combination "\textsf{U+200D + hrule + U+200D}" which is used as
+ stretching item.
+ \item In \textsf{xepersian} when outline or shadow fonts are used, the gaps
+ filled by horizontal rule appears as a solid box. This is fixed by
+ using the \textsf{kashida} glyph instead of the horizontal rule in
+ \textsf{xepersian-hm}.
+ \item If italic or oblique style of some fonts such as \textsf{X Series 2}
+ is used in \textsf{xepersian}, an extra gap is left between the
+ stretched characters. This is fixed in \textsf{HM Series} fonts.
+\end{list}
+
+For comparing the outputs of \textsf{xepersian} and \textsf{xepersian-hm} with
+a variety of options available to these packages, please see the
+\mbox{Figure \ref{fig:xepersian-XB}},
+\mbox{Figure \ref{fig:xepersian-hm-hrule}}, and
+\mbox{Figure \ref{fig:xepersian-hm-glyph}}.
+
+\begin{figure}
+ \centerline{\includegraphics[scale=1]{doc-samples-xep.pdf}}
+ \caption{Package: \textsf{xeprsian}, Font: \textsf{XB Kayhan}, \textsf{Scale=4.5}, \textsf{Kashida=0n}}
+ \label{fig:xepersian-XB}
+\end{figure}
+
+\begin{figure}
+ \centerline{\includegraphics[scale=1]{doc-samples-hrule.pdf}}
+ \caption{Package: \textsf{xeprsian-hm}, Font: \textsf{HM XKayhan}, \textsf{Scale=4.5}, \textsf{Kashida=hrule}}
+ \label{fig:xepersian-hm-hrule}
+\end{figure}
+
+\begin{figure}
+ \centerline{\includegraphics[scale=1]{doc-samples-glyph.pdf}}
+ \caption{Package: \textsf{xeprsian-hm}, Font: \textsf{HM XKayhan}, \textsf{Scale=4.5}, \textsf{Kashida=glyph}}
+ \label{fig:xepersian-hm-glyph}
+\end{figure}
+
\section{Package loading and options}
Please note that \textsf{xepersian-hm} loads \textsf{xepersian} automatically,
@@ -56,7 +117,7 @@ so you may only pass options to the package using the command
\verb|\PassOptionsToPackage| before \verb|\documentclass|. For example:
\begin{verbatim}
-\PassOptionsToPackage{Kashida=off,RTLdocument=on}{xepersian}
+\PassOptionsToPackage{debugfootnotedirection=off,localise=off}{xepersian}
\documentclass{report}
\usepackage{xcolor}
\usepackage[Kashida,kashidastretch=0.14 em plus 0.5 em]{xepersian-hm}
@@ -77,7 +138,8 @@ The options available in \textsf{xepersian-hm} are:
xelatex kashida-example.tex}
Please note that this feature is still experimental and is not regarded as stable.
- If you are going to use this option be ready for unpredictable results.
+ If you are going to use this option be ready for unpredictable results. Note that
+ the value of \texttt{Kashida} is mandatory.
\item \texttt{hrule}: \\
which uses a horizontal rule (\verb|\hrule|) to stretch the text.
@@ -154,6 +216,17 @@ The options available in \textsf{xepersian-hm} are:
\texttt{\bslash discouragebadlinebreaks[9][0.12 em plus 0.5 em]\{\dots\}}
\end{description}
+
+\section{Important notes}
+
+\begin{description}
+ \item Kashida and ligatures:
+
+ The method used to implement kashida feature breaks a ligature if it is applied to the letters which are joined to form
+ the ligature.
+\end{description}
+
+\end{latin}
\end{document}
%%
%%