From 4f04f33f36933aaec7626154e055687b2abe903c Mon Sep 17 00:00:00 2001
From: Philipp Gesang <phg42.2a@gmail.com>
Date: Sat, 31 Aug 2013 19:59:24 +0200
Subject: [db] document new db layout for rewrite
---
luaotfload-database.lua | 38 +++++++++++++++++++++++++++++++-------
1 file changed, 31 insertions(+), 7 deletions(-)
diff --git a/luaotfload-database.lua b/luaotfload-database.lua
index 067b48c..6e49556 100644
--- a/luaotfload-database.lua
+++ b/luaotfload-database.lua
@@ -238,17 +238,41 @@ end
This is a sketch of the luaotfload db:
type dbobj = {
- formats : string list; // { "otf", "ttf", "ttc", "dfont" }
mappings : fontentry list;
- status : filestatus;
- version : float;
- // new in v2.3; these supersede the basenames / barenames
- // hashes from v2.2
+ index : filestatus;
+ families : familytable;
+ names : namedata; // TODO: check for relevance after db is finalized
+ meta : metadata;
filenames : filemap;
}
+ and familytable = {
+ texmf : (format, familyentry) hash;
+ system : (format, familyentry) hash;
+ }
+ and familyentry = {
+ regular : sizes;
+ italic : sizes;
+ bold : sizes;
+ bolditalic : sizes;
+ }
+ and sizes = {
+ default = int; // points into mappings or names
+ other = (int, int) list; // design size -> index entry
+ }
+ and metadata = {
+ formats : string list; // { "otf", "ttf", "ttc", "dfont" }
+ statistics : TODO;
+ version : float;
+ }
and filemap = {
- base : (string, int) hash; // basename -> idx
- bare : (string, int) hash; // barename -> idx
+ base : {
+ texmf : (string, int) hash; // basename -> idx
+ system : (string, int) hash;
+ };
+ bare : {
+ texmf : (string, (string, int) hash) hash; // format -> (barename -> idx)
+ system : (string, (string, int) hash) hash;
+ };
full : (int, string) hash; // idx -> full path
}
and fontentry = {
--
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