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| author | Philipp Gesang <phg@phi-gamma.net> | 2017-02-11 00:00:29 +0100 |
|---|---|---|
| committer | Philipp Gesang <phg@phi-gamma.net> | 2017-02-11 00:00:29 +0100 |
| commit | 894e27119cba0a294f8e1f5c6e9a70055f4e1ba1 (patch) | |
| tree | d451e4ed15d4ab5ce3a66a7321da2286698f377d | |
| parent | f4a719d2a4d302e4cb6014a518b2ceb0729b172f (diff) | |
| download | luaotfload-894e27119cba0a294f8e1f5c6e9a70055f4e1ba1.tar.gz | |
[doc] document syntax for path lookup
| -rw-r--r-- | doc/luaotfload-main.tex | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/doc/luaotfload-main.tex b/doc/luaotfload-main.tex index c26235e..b82c8d9 100644 --- a/doc/luaotfload-main.tex +++ b/doc/luaotfload-main.tex @@ -183,7 +183,7 @@ for a more formal description see figure \ref{font-syntax}. \alt <unquoted font request> ; <unquoted font request> ::= <specification>, [`:', <feature list> ] - \alt `[', <path lookup> `]', [ [`:'], <feature list> ] ; + \alt <path lookup>, [ [`:'], <feature list> ] ; <specification> ::= <prefixed spec>, [ <subfont no> ], \{ <modifier> \} \alt <anon lookup>, \{ <modifier> \} ; @@ -218,7 +218,13 @@ for a more formal description see figure \ref{font-syntax}. <anon lookup> ::= {\sc tfmname} | <name lookup> ; - <path lookup> ::= \{ {\sc all_characters} - `]' \} ; + <path lookup> ::= `[', \{ <path content> \}, `]', [ <subfont no> ] ; + + <path content> ::= <path balanced> + \alt `\\', {\sc all_characters} + \alt {\sc all_characters} - `]' + + <path balanced> ::= `[', [ <path content> ], `]' <modifier> ::= `/', (`I' | `B' | `BI' | `IB' | `S=', \{ {\sc digit} \} ) ; @@ -608,7 +614,7 @@ obviously, \inlinecode{random}. For scripts derived from the Latin alphabet the value \inlinecode{latn} is good choice. } - the default value is \inlinecode{dlft}. + the default value is \inlinecode{dflt}. % Some fonts, including very popular ones by foundries like Adobe, do not assign features to the \inlinecode{dflt} script, in |