diff options
Diffstat (limited to 'doc/luaotfload-main.tex')
| -rw-r--r-- | doc/luaotfload-main.tex | 108 |
1 files changed, 52 insertions, 56 deletions
diff --git a/doc/luaotfload-main.tex b/doc/luaotfload-main.tex index 4c848bf..002b1bb 100644 --- a/doc/luaotfload-main.tex +++ b/doc/luaotfload-main.tex @@ -127,10 +127,10 @@ in the task and willingness to respond to our suggestions. \identifier{luaotfload} supports an extended font request syntax: \beginnarrower - |\font\foo={|% - \meta{prefix}|:|% - \meta{font name}|:|% - \meta{font features}|}|% + \inlinecode{\\font\\foo=\{}% + \meta{prefix}\inlinecode{:}% + \meta{font name}\inlinecode{:}% + \meta{font features}\inlinecode{\}}% \meta{\TEX font features} \endnarrower @@ -210,7 +210,7 @@ In \identifier{luaotfload}, the canonical syntax for font requests requires a \emphasis{prefix}: % \beginnarrower - |\font\fontname=|\meta{prefix}|:|\meta{fontname}\dots + \inlinecode{\\font\\fontname=}\meta{prefix}\inlinecode{:}\meta{fontname}\dots \endnarrower % where \meta{prefix} is either \inlinecode{file:} or \inlinecode {name:}.\footnote{% @@ -305,7 +305,7 @@ There are again two modes: bracketed and unbracketed. A bracketed request looks as follows. \beginnarrower - |\font\fontname=[|\meta{path to file}|]| + \inlinecode{\\font\\fontname=[}\meta{path to file}\inlinecode{]} \endnarrower \noindent @@ -316,7 +316,7 @@ Naturally, path-less file names are equally valid and processed the same way as an ordinary \inlinecode {file:} lookup. \beginnarrower - |\font\fontname=|\meta{font name} \dots + \inlinecode{\\font\\fontname=}\meta{font name} \dots \endnarrower Unbracketed (or, for lack of a better word: \emphasis{anonymous}) @@ -334,7 +334,7 @@ Furthermore, \identifier{luaotfload} supports the slashed (shorthand) font style notation from \XETEX. \beginnarrower - |\font\fontname=|\meta{font name}|/|\meta{modifier}\dots + \inlinecode{\\font\\fontname=}\meta{font name}\inlinecode{/}\meta{modifier}\dots \endnarrower \noindent @@ -423,7 +423,7 @@ is installed in some location accessible by \identifier{luaotfload}, the regular shape can be loaded as follows: \beginlisting - \font\iwona=Iwona at 20pt + \font \iwona = Iwona at 20pt \endlisting \noindent @@ -431,18 +431,18 @@ To load the most common of the other styles, the slash notation can be employed as shorthand: \beginlisting - \font\iwonaitalic =Iwona/I at 20pt - \font\iwonabold =Iwona/B at 20pt - \font\iwonabolditalic=Iwona/BI at 20pt + \font \iwonaitalic = Iwona/I at 20pt + \font \iwonabold = Iwona/B at 20pt + \font \iwonabolditalic = Iwona/BI at 20pt \endlisting \noindent which is equivalent to these full names: \beginlisting - \font\iwonaitalic ="Iwona Italic" at 20pt - \font\iwonabold ="Iwona Bold" at 20pt - \font\iwonabolditalic="Iwona BoldItalic" at 20pt + \font \iwonaitalic = "Iwona Italic" at 20pt + \font \iwonabold = "Iwona Bold" at 20pt + \font \iwonabolditalic = "Iwona BoldItalic" at 20pt \endlisting \endsubsubsection @@ -457,10 +457,10 @@ which is equivalent to these full names: general scheme for font requests: \beginnarrower - |\font\foo={|% - \meta{prefix}|:|% - \meta{font name}|:|% - \meta{font features}|}|% + \inlinecode{\\font\\foo=\{}% + \meta{prefix}\inlinecode{:}% + \meta{font name}\inlinecode{:}% + \meta{font features}\inlinecode{\}}% \meta{\TEX font features} \endnarrower @@ -474,40 +474,40 @@ tags\footnote{% } and font options. % -Prepending a font feature with a |+| (plus sign) enables it, whereas -a |-| (minus) disables it. For instance, the request +Prepending a font feature with a \inlinecode{+} (plus sign) enables it, +whereas a \inlinecode{-} (minus) disables it. For instance, the request \beginlisting - \font\test=LatinModernRoman:+clig;-kern + \font \test = LatinModernRoman:+clig;-kern \endlisting -\noindent activates contextual ligatures (|clig|) and disables -kerning (|kern|). +\noindent activates contextual ligatures (\inlinecode{clig}) and +disables kerning (\inlinecode{kern}). % -Alternatively the options |true| or |false| can be passed to -the feature in a key/value expression. +Alternatively the options \inlinecode{true} or \inlinecode{false} can +be passed to the feature in a key/value expression. % The following request has the same meaning as the last one: \beginlisting - \font\test=LatinModernRoman:clig=true;kern=false + \font \test = LatinModernRoman:clig=true;kern=false \endlisting \noindent Furthermore, this second syntax is required should a font feature accept other options besides a true/false switch. % -For example, \emphasis{stylistic alternates} (|salt|) are variants of -given glyphs. +For example, \emphasis{stylistic alternates} (\inlinecode{salt}) are +variants of given glyphs. % They can be selected either explicitly by supplying the variant index (starting from one), or randomly by setting the value to, -obviously, |random|. +obviously, \inlinecode{random}. %% TODO verify that this actually works with a font that supports %% the salt/random feature!\fi \beginlisting - \font\librmsaltfirst=LatinModernRoman:salt=1 + \font \librmsaltfirst = LatinModernRoman:salt=1 \endlisting \beginsubsection {Basic font features} @@ -543,19 +543,19 @@ obviously, |random|. for a list of valid values. % For scripts derived from the Latin alphabet the value - |latn| is good choice. + \inlinecode{latn} is good choice. } - the default value is |dlft|. + the default value is \inlinecode{dlft}. % Some fonts, including very popular ones by foundries like Adobe, - do not assign features to the |dflt| script, in + do not assign features to the \inlinecode{dflt} script, in which case the script needs to be set explicitly. \altitem {language} An \OpenType language system identifier,\footnote{% Cf. \hyperlink {http://www.microsoft.com/typography/otspec/languagetags.htm}. } - defaulting to |dflt|. + defaulting to \inlinecode{dflt}. \altitem {featurefile} A comma-separated list of feature files to be applied to the @@ -580,22 +580,23 @@ obviously, |random|. for details. } - For a demonstration of how to set a |tkrn| feature consult - the file |tkrn.fea| that is part of \identifier{luaotfload}. + For a demonstration of how to set a \inlinecode{tkrn} feature consult + the file \inlinecode{tkrn.fea} that is part of \identifier{luaotfload}. It can be read and applied as follows: - |\font\test=Latin Modern Roman:featurefile=tkrn.fea;+tkrn| + \inlinecode{\\font \\test = Latin Modern Roman:featurefile=tkrn.fea;+tkrn} \altitem {color} A font color, defined as a triplet of two-digit hexadecimal \abbrev{rgb} values, with an optional fourth value for transparency - (where |00| is completely transparent and |FF| is opaque). + (where \inlinecode{00} is completely transparent and + \inlinecode{FF} is opaque). For example, in order to set text in semitransparent red: \beginlisting -\font\test={Latin Modern Roman}:color=FF0000BB +\font \test = "Latin Modern Roman:color=FF0000BB" \endlisting \altitem {kernfactor \& letterspace} @@ -633,8 +634,8 @@ obviously, |random|. letterspacing width: \beginlisting -\font\iwonakernedA="file:Iwona-Regular.otf:kernfactor=0.125" -\font\iwonakernedB="file:Iwona-Regular.otf:letterspace=12.5" +\font \iwonakernedA = "file:Iwona-Regular.otf:kernfactor=0.125" +\font \iwonakernedB = "file:Iwona-Regular.otf:letterspace=12.5" \endlisting Specific pairs of letters and ligatures may be exempt from @@ -695,7 +696,7 @@ obviously, |random|. }: \beginlisting -\font\test=LatinModernRoman:protrusion=default +\font \test = LatinModernRoman:protrusion=default \endlisting \enddescriptions @@ -849,14 +850,11 @@ Other paths can be specified by setting the environment variable If it is non-empty, then search will be extended to the included directories. -\begin{table}[t] - \hrule - \caption{List of paths searched for each supported operating - system.} - \renewcommand{\arraystretch}{1.2} +\begintablefloat {table-searchpaths} + {List of paths searched for each supported operating system.} \begincentered \begin{tabular}{lp{.5\textwidth}} - Windows & \inlinecode {\%WINDIR\%\\Fonts} + Windows & \inlinecode {\% WINDIR\%\\ Fonts} \\ Linux & \fileent{/usr/local/etc/fonts/fonts.conf} and\hfill\break \fileent{/etc/fonts/fonts.conf} @@ -868,9 +866,7 @@ directories. \\ \end{tabular} \endcentered - \label{table-searchpaths} - \hrule -\end{table} +\endtablefloat \endsubsection @@ -957,7 +953,7 @@ plain filename should suffice. % File extensions (\fileent{.otf}, \fileent{.ttf}, etc.) may be omitted. % -Anything after a percent (|%|) character until the end of the line +Anything after a percent (\inlinecode {\%}) character until the end of the line is ignored, so use this to add comments. % Place this file to some location where the \identifier{kpse} @@ -973,7 +969,7 @@ or just leave it in the working directory of your document. \fileent{luaotfload-blacklist.cnf} it finds, so the fonts in \fileent{./luaotfload-blacklist.cnf} extend the global blacklist. -Furthermore, a filename prepended with a dash character (|-|) is +Furthermore, a filename prepended with a dash character (\inlinecode{-}) is removed from the blacklist, causing it to be temporarily whitelisted without modifying the global file. % @@ -1208,7 +1204,7 @@ writes an entire font object to the file \fileent{fontdump.lua}: "my_private_callbacks.dump_font" ) } - \font\dumpme=name:Iwona + \font \dumpme = name:Iwona \bye \endlisting @@ -1388,7 +1384,7 @@ fix it. For example with \inlinecode {latn}: \beginlisting - \font\test=file:MyFont.otf:script=latn;+liga; + \font \test = file:MyFont.otf:script=latn;+liga; \endlisting You can get a list of features that a font defines for scripts and |