diff options
Diffstat (limited to 'tex/context/base/node-fnt.lua')
| -rw-r--r-- | tex/context/base/node-fnt.lua | 70 |
1 files changed, 9 insertions, 61 deletions
diff --git a/tex/context/base/node-fnt.lua b/tex/context/base/node-fnt.lua index b0d073425..594cfc1a1 100644 --- a/tex/context/base/node-fnt.lua +++ b/tex/context/base/node-fnt.lua @@ -6,6 +6,8 @@ if not modules then modules = { } end modules ['node-fnt'] = { license = "see context related readme files" } +if not context then os.exit() end -- generic function in node-dum + local next, type = next, type local trace_characters = false trackers.register("nodes.characters", function(v) trace_characters = v end) @@ -33,20 +35,6 @@ local fontdata = fonts.ids -- happen often; we could consider processing sublists but that might need mor -- checking later on; the current approach also permits variants -if tex.attribute[0] < 0 then - - texio.write_nl("log","!") - texio.write_nl("log","! Attribute 0 is reserved for ConTeXt's font feature management and has to be") - texio.write_nl("log","! set to zero. Also, some attributes in the range 1-255 are used for special") - texio.write_nl("log","! purposed so setting them at the TeX end might break the font handler.") - texio.write_nl("log","!") - - tex.attribute[0] = 0 -- else no features - -end - --- this will be redone and split in a generic one and a context one - function nodes.process_characters(head) -- either next or not, but definitely no already processed list starttiming(nodes) @@ -100,16 +88,17 @@ function nodes.process_characters(head) prevattr = attr end end + -- we could combine these and just make the attribute nil if u == 1 then local font, processors = next(usedfonts) local n = #processors if n > 0 then - local h, d = processors[1](head,font,false) + local h, d = processors[1](head,font,0) head, done = h or head, done or d if n > 1 then for i=2,n do - local h, d = processors[i](head,font,false) + local h, d = processors[i](head,font,0) head, done = h or head, done or d end end @@ -117,11 +106,11 @@ function nodes.process_characters(head) elseif u > 0 then for font, processors in next, usedfonts do local n = #processors - local h, d = processors[1](head,font,false) + local h, d = processors[1](head,font,0) head, done = h or head, done or d if n > 1 then for i=2,n do - local h, d = processors[i](head,font,false) + local h, d = processors[i](head,font,0) head, done = h or head, done or d end end @@ -162,46 +151,5 @@ function nodes.process_characters(head) return head, true end -if node.protect_glyphs then - - nodes.protect_glyphs = node.protect_glyphs - nodes.unprotect_glyphs = node.unprotect_glyphs - -else do - - -- initial value subtype : X000 0001 = 1 = 0x01 = char - -- - -- expected before linebreak : X000 0000 = 0 = 0x00 = glyph - -- X000 0010 = 2 = 0x02 = ligature - -- X000 0100 = 4 = 0x04 = ghost - -- X000 1010 = 10 = 0x0A = leftboundary lig - -- X001 0010 = 18 = 0x12 = rightboundary lig - -- X001 1010 = 26 = 0x1A = both boundaries lig - -- X000 1100 = 12 = 0x1C = leftghost - -- X001 0100 = 20 = 0x14 = rightghost - - function nodes.protect_glyphs(head) - local done = false - for g in traverse_id(glyph,head) do - local s = g.subtype - if s == 1 then - done, g.subtype = true, 256 - elseif s <= 256 then - done, g.subtype = true, 256 + s - end - end - return done - end - - function nodes.unprotect_glyphs(head) - local done = false - for g in traverse_id(glyph,head) do - local s = g.subtype - if s > 256 then - done, g.subtype = true, s - 256 - end - end - return done - end - -end end +nodes.protect_glyphs = node.protect_glyphs +nodes.unprotect_glyphs = node.unprotect_glyphs |