summaryrefslogtreecommitdiff
path: root/src/fontloader/luaotfload-fonts-cbk.lua
diff options
context:
space:
mode:
authorPhilipp Gesang <phg42.2a@gmail.com>2014-12-08 20:29:21 +0100
committerPhilipp Gesang <phg42.2a@gmail.com>2014-12-08 20:29:21 +0100
commit56b0d91f4dc7416538ac4c1af04c52ac5bf5929b (patch)
tree141750099992a4940d3810f4647644b8dbfb8ec3 /src/fontloader/luaotfload-fonts-cbk.lua
parenta33dddf428bd44af867d1ee78b13fcf73d725ca5 (diff)
downloadluaotfload-56b0d91f4dc7416538ac4c1af04c52ac5bf5929b.tar.gz
[*] reorganize src/ subtree
This moves the fontloader files into a separate subdirectory to simplify maintainance.
Diffstat (limited to 'src/fontloader/luaotfload-fonts-cbk.lua')
-rw-r--r--src/fontloader/luaotfload-fonts-cbk.lua68
1 files changed, 68 insertions, 0 deletions
diff --git a/src/fontloader/luaotfload-fonts-cbk.lua b/src/fontloader/luaotfload-fonts-cbk.lua
new file mode 100644
index 0000000..9db94f6
--- /dev/null
+++ b/src/fontloader/luaotfload-fonts-cbk.lua
@@ -0,0 +1,68 @@
+if not modules then modules = { } end modules ['luatex-fonts-cbk'] = {
+ version = 1.001,
+ comment = "companion to luatex-*.tex",
+ author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright = "PRAGMA ADE / ConTeXt Development Team",
+ license = "see context related readme files"
+}
+
+if context then
+ texio.write_nl("fatal error: this module is not for context")
+ os.exit()
+end
+
+local fonts = fonts
+local nodes = nodes
+
+-- Fonts: (might move to node-gef.lua)
+
+local traverse_id = node.traverse_id
+local glyph_code = nodes.nodecodes.glyph
+
+function nodes.handlers.characters(head)
+ local fontdata = fonts.hashes.identifiers
+ if fontdata then
+ local usedfonts, done, prevfont = { }, false, nil
+ for n in traverse_id(glyph_code,head) do
+ local font = n.font
+ if font ~= prevfont then
+ prevfont = font
+ local used = usedfonts[font]
+ if not used then
+ local tfmdata = fontdata[font] --
+ if tfmdata then
+ local shared = tfmdata.shared -- we need to check shared, only when same features
+ if shared then
+ local processors = shared.processes
+ if processors and #processors > 0 then
+ usedfonts[font] = processors
+ done = true
+ end
+ end
+ end
+ end
+ end
+ end
+ if done then
+ for font, processors in next, usedfonts do
+ for i=1,#processors do
+ local h, d = processors[i](head,font,0)
+ head, done = h or head, done or d
+ end
+ end
+ end
+ return head, true
+ else
+ return head, false
+ end
+end
+
+function nodes.simple_font_handler(head)
+-- lang.hyphenate(head)
+ head = nodes.handlers.characters(head)
+ nodes.injections.handler(head)
+ nodes.handlers.protectglyphs(head)
+ head = node.ligaturing(head)
+ head = node.kerning(head)
+ return head
+end