summaryrefslogtreecommitdiff
path: root/tex/context/base/font-nod.lua
diff options
context:
space:
mode:
Diffstat (limited to 'tex/context/base/font-nod.lua')
-rw-r--r--tex/context/base/font-nod.lua868
1 files changed, 434 insertions, 434 deletions
diff --git a/tex/context/base/font-nod.lua b/tex/context/base/font-nod.lua
index 7c93e294c..f99130279 100644
--- a/tex/context/base/font-nod.lua
+++ b/tex/context/base/font-nod.lua
@@ -1,434 +1,434 @@
-if not modules then modules = { } end modules ['font-nod'] = {
- version = 1.001,
- comment = "companion to font-ini.mkiv",
- author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
- copyright = "PRAGMA ADE / ConTeXt Development Team",
- license = "see context related readme files"
-}
-
---[[ldx--
-<p>This is rather experimental. We need more control and some of this
-might become a runtime module instead. This module will be cleaned up!</p>
---ldx]]--
-
-local tonumber, tostring = tonumber, tostring
-local utfchar = utf.char
-local concat = table.concat
-local match, gmatch, concat, rep = string.match, string.gmatch, table.concat, string.rep
-
-local report_nodes = logs.reporter("fonts","tracing")
-
-fonts = fonts or { }
-nodes = nodes or { }
-
-local fonts, nodes, node, context = fonts, nodes, node, context
-
-local tracers = nodes.tracers or { }
-nodes.tracers = tracers
-
-local tasks = nodes.tasks or { }
-nodes.tasks = tasks
-
-local handlers = nodes.handlers or { }
-nodes.handlers = handlers
-
-local injections = nodes.injections or { }
-nodes.injections = injections
-
-local char_tracers = tracers.characters or { }
-tracers.characters = char_tracers
-
-local step_tracers = tracers.steppers or { }
-tracers.steppers = step_tracers
-
-local copy_node_list = node.copy_list
-local hpack_node_list = node.hpack
-local free_node_list = node.flush_list
-local traverse_nodes = node.traverse
-
-local nodecodes = nodes.nodecodes
-local whatcodes = nodes.whatcodes
-
-local glyph_code = nodecodes.glyph
-local hlist_code = nodecodes.hlist
-local vlist_code = nodecodes.vlist
-local disc_code = nodecodes.disc
-local glue_code = nodecodes.glue
-local kern_code = nodecodes.kern
-local rule_code = nodecodes.rule
-local whatsit_code = nodecodes.whatsit
-local spec_code = nodecodes.glue_spec
-
-local localpar_code = whatcodes.localpar
-local dir_code = whatcodes.dir
-
-local nodepool = nodes.pool
-local new_glyph = nodepool.glyph
-
-local formatters = string.formatters
-local formatter = string.formatter
-
-local hashes = fonts.hashes
-
-local fontidentifiers = hashes.identifiers
-local fontdescriptions = hashes.descriptions
-local fontcharacters = hashes.characters
-local fontproperties = hashes.properties
-local fontparameters = hashes.parameters
-
-function char_tracers.collect(head,list,tag,n)
- n = n or 0
- local ok, fn = false, nil
- while head do
- local id = head.id
- if id == glyph_code then
- local f = head.font
- if f ~= fn then
- ok, fn = false, f
- end
- local c = head.char
- local i = fontidentifiers[f].indices[c] or 0
- if not ok then
- ok = true
- n = n + 1
- list[n] = list[n] or { }
- list[n][tag] = { }
- end
- local l = list[n][tag]
- l[#l+1] = { c, f, i }
- elseif id == disc_code then
- -- skip
- else
- ok = false
- end
- head = head.next
- end
-end
-
-function char_tracers.equal(ta, tb)
- if #ta ~= #tb then
- return false
- else
- for i=1,#ta do
- local a, b = ta[i], tb[i]
- if a[1] ~= b[1] or a[2] ~= b[2] or a[3] ~= b[3] then
- return false
- end
- end
- end
- return true
-end
-
-function char_tracers.string(t)
- local tt = { }
- for i=1,#t do
- tt[i] = utfchar(t[i][1])
- end
- return concat(tt,"")
-end
-
-local f_unicode = formatters["%U"]
-
-function char_tracers.unicodes(t,decimal)
- local tt = { }
- for i=1,#t do
- local n = t[i][1]
- if n == 0 then
- tt[i] = "-"
- elseif decimal then
- tt[i] = n
- else
- tt[i] = f_unicode(n)
- end
- end
- return concat(tt," ")
-end
-
-function char_tracers.indices(t,decimal)
- local tt = { }
- for i=1,#t do
- local n = t[i][3]
- if n == 0 then
- tt[i] = "-"
- elseif decimal then
- tt[i] = n
- else
- tt[i] = f_unicode(n)
- end
- end
- return concat(tt," ")
-end
-
-function char_tracers.start()
- local npc = handlers.characters
- local list = { }
- function handlers.characters(head)
- local n = #list
- char_tracers.collect(head,list,'before',n)
- local h, d = npc(head)
- char_tracers.collect(head,list,'after',n)
- if #list > n then
- list[#list+1] = { }
- end
- return h, d
- end
- function char_tracers.stop()
- tracers.list['characters'] = list
- local variables = {
- ['title'] = 'ConTeXt Character Processing Information',
- ['color-background-one'] = lmx.get('color-background-yellow'),
- ['color-background-two'] = lmx.get('color-background-purple'),
- }
- lmx.show('context-characters.lmx',variables)
- handlers.characters = npc
- tasks.restart("processors", "characters")
- end
- tasks.restart("processors", "characters")
-end
-
-local stack = { }
-
-function tracers.start(tag)
- stack[#stack+1] = tag
- local tracer = tracers[tag]
- if tracer and tracer.start then
- tracer.start()
- end
-end
-function tracers.stop()
- local tracer = stack[#stack]
- if tracer and tracer.stop then
- tracer.stop()
- end
- stack[#stack] = nil
-end
-
--- experimental
-
-local collection, collecting, messages = { }, false, { }
-
-function step_tracers.start()
- collecting = true
-end
-
-function step_tracers.stop()
- collecting = false
-end
-
-function step_tracers.reset()
- for i=1,#collection do
- local c = collection[i]
- if c then
- free_node_list(c)
- end
- end
- collection, messages = { }, { }
-end
-
-function step_tracers.nofsteps()
- return context(#collection)
-end
-
-function step_tracers.glyphs(n,i)
- local c = collection[i]
- if c then
- tex.box[n] = hpack_node_list(copy_node_list(c))
- end
-end
-
-function step_tracers.features()
- -- we cannot use first_glyph here as it only finds characters with subtype < 256
- local f = collection[1]
- while f do
- if f.id == glyph_code then
- local tfmdata, t = fontidentifiers[f.font], { }
- for feature, value in table.sortedhash(tfmdata.shared.features) do
- if feature == "number" or feature == "features" then
- -- private
- elseif type(value) == "boolean" then
- if value then
- t[#t+1] = formatters["%s=yes"](feature)
- else
- -- skip
- end
- else
- t[#t+1] = formatters["%s=%s"](feature,value)
- end
- end
- if #t > 0 then
- context(concat(t,", "))
- else
- context("no features")
- end
- return
- end
- f = f.next
- end
-end
-
-function tracers.fontchar(font,char)
- local n = new_glyph()
- n.font, n.char, n.subtype = font, char, 256
- context(n)
-end
-
-function step_tracers.font(command)
- local c = collection[1]
- while c do
- local id = c.id
- if id == glyph_code then
- local font = c.font
- local name = file.basename(fontproperties[font].filename or "unknown")
- local size = fontparameters[font].size or 0
- if command then
- context[command](font,name,size) -- size in sp
- else
- context("[%s: %s @ %p]",font,name,size)
- end
- return
- else
- c = c.next
- end
- end
-end
-
-function step_tracers.codes(i,command)
- local c = collection[i]
- while c do
- local id = c.id
- if id == glyph_code then
- if command then
- local f, c = c.font,c.char
- local d = fontdescriptions[f]
- local d = d and d[c]
- context[command](f,c,d and d.class or "")
- else
- context("[%s:U+%04X]",c.font,c.char)
- end
- elseif id == whatsit_code and (c.subtype == localpar_code or c.subtype == dir_code) then
- context("[%s]",c.dir)
- else
- context("[%s]",nodecodes[id])
- end
- c = c.next
- end
-end
-
-function step_tracers.messages(i,command,split)
- local list = messages[i] -- or { "no messages" }
- if list then
- for i=1,#list do
- local l = list[i]
- if not command then
- context("(%s)",l)
- elseif split then
- local a, b = match(l,"^(.-)%s*:%s*(.*)$")
- context[command](a or l or "",b or "")
- else
- context[command](l)
- end
- end
- end
-end
-
--- hooks into the node list processor (see otf)
-
-function step_tracers.check(head)
- if collecting then
- step_tracers.reset()
- local n = copy_node_list(head)
- injections.handler(n,nil,"trace",true)
- handlers.protectglyphs(n) -- can be option
- collection[1] = n
- end
-end
-
-function step_tracers.register(head)
- if collecting then
- local nc = #collection+1
- if messages[nc] then
- local n = copy_node_list(head)
- injections.handler(n,nil,"trace",true)
- handlers.protectglyphs(n) -- can be option
- collection[nc] = n
- end
- end
-end
-
-function step_tracers.message(str,...)
- str = formatter(str,...)
- if collecting then
- local n = #collection + 1
- local m = messages[n]
- if not m then m = { } messages[n] = m end
- m[#m+1] = str
- end
- return str -- saves an intermediate var in the caller
-end
-
---
-
-local threshold = 65536
-
-local function toutf(list,result,nofresult,stopcriterium)
- if list then
- for n in traverse_nodes(list) do
- local id = n.id
- if id == glyph_code then
- local components = n.components
- if components then
- result, nofresult = toutf(components,result,nofresult)
- else
- local c = n.char
- local fc = fontcharacters[n.font]
- if fc then
- local u = fc[c].tounicode
- if u then
- for s in gmatch(u,"....") do
- nofresult = nofresult + 1
- result[nofresult] = utfchar(tonumber(s,16))
- end
- else
- nofresult = nofresult + 1
- result[nofresult] = utfchar(c)
- end
- else
- nofresult = nofresult + 1
- result[nofresult] = utfchar(c)
- end
- end
- elseif id == disc_code then
- result, nofresult = toutf(n.replace,result,nofresult) -- needed?
- elseif id == hlist_code or id == vlist_code then
- -- if nofresult > 0 and result[nofresult] ~= " " then
- -- nofresult = nofresult + 1
- -- result[nofresult] = " "
- -- end
- result, nofresult = toutf(n.list,result,nofresult)
- elseif id == glue_code then
- if nofresult > 0 and result[nofresult] ~= " " then
- nofresult = nofresult + 1
- result[nofresult] = " "
- end
- elseif id == kern_code and n.kern > threshold then
- if nofresult > 0 and result[nofresult] ~= " " then
- nofresult = nofresult + 1
- result[nofresult] = " "
- end
- end
- if n == stopcriterium then
- break
- end
- end
- end
- if nofresult > 0 and result[nofresult] == " " then
- result[nofresult] = nil
- nofresult = nofresult - 1
- end
- return result, nofresult
-end
-
-function nodes.toutf(list,stopcriterium)
- local result, nofresult = toutf(list,{},0,stopcriterium)
- return concat(result)
-end
+if not modules then modules = { } end modules ['font-nod'] = {
+ version = 1.001,
+ comment = "companion to font-ini.mkiv",
+ author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright = "PRAGMA ADE / ConTeXt Development Team",
+ license = "see context related readme files"
+}
+
+--[[ldx--
+<p>This is rather experimental. We need more control and some of this
+might become a runtime module instead. This module will be cleaned up!</p>
+--ldx]]--
+
+local tonumber, tostring = tonumber, tostring
+local utfchar = utf.char
+local concat = table.concat
+local match, gmatch, concat, rep = string.match, string.gmatch, table.concat, string.rep
+
+local report_nodes = logs.reporter("fonts","tracing")
+
+fonts = fonts or { }
+nodes = nodes or { }
+
+local fonts, nodes, node, context = fonts, nodes, node, context
+
+local tracers = nodes.tracers or { }
+nodes.tracers = tracers
+
+local tasks = nodes.tasks or { }
+nodes.tasks = tasks
+
+local handlers = nodes.handlers or { }
+nodes.handlers = handlers
+
+local injections = nodes.injections or { }
+nodes.injections = injections
+
+local char_tracers = tracers.characters or { }
+tracers.characters = char_tracers
+
+local step_tracers = tracers.steppers or { }
+tracers.steppers = step_tracers
+
+local copy_node_list = node.copy_list
+local hpack_node_list = node.hpack
+local free_node_list = node.flush_list
+local traverse_nodes = node.traverse
+
+local nodecodes = nodes.nodecodes
+local whatcodes = nodes.whatcodes
+
+local glyph_code = nodecodes.glyph
+local hlist_code = nodecodes.hlist
+local vlist_code = nodecodes.vlist
+local disc_code = nodecodes.disc
+local glue_code = nodecodes.glue
+local kern_code = nodecodes.kern
+local rule_code = nodecodes.rule
+local whatsit_code = nodecodes.whatsit
+local spec_code = nodecodes.glue_spec
+
+local localpar_code = whatcodes.localpar
+local dir_code = whatcodes.dir
+
+local nodepool = nodes.pool
+local new_glyph = nodepool.glyph
+
+local formatters = string.formatters
+local formatter = string.formatter
+
+local hashes = fonts.hashes
+
+local fontidentifiers = hashes.identifiers
+local fontdescriptions = hashes.descriptions
+local fontcharacters = hashes.characters
+local fontproperties = hashes.properties
+local fontparameters = hashes.parameters
+
+function char_tracers.collect(head,list,tag,n)
+ n = n or 0
+ local ok, fn = false, nil
+ while head do
+ local id = head.id
+ if id == glyph_code then
+ local f = head.font
+ if f ~= fn then
+ ok, fn = false, f
+ end
+ local c = head.char
+ local i = fontidentifiers[f].indices[c] or 0
+ if not ok then
+ ok = true
+ n = n + 1
+ list[n] = list[n] or { }
+ list[n][tag] = { }
+ end
+ local l = list[n][tag]
+ l[#l+1] = { c, f, i }
+ elseif id == disc_code then
+ -- skip
+ else
+ ok = false
+ end
+ head = head.next
+ end
+end
+
+function char_tracers.equal(ta, tb)
+ if #ta ~= #tb then
+ return false
+ else
+ for i=1,#ta do
+ local a, b = ta[i], tb[i]
+ if a[1] ~= b[1] or a[2] ~= b[2] or a[3] ~= b[3] then
+ return false
+ end
+ end
+ end
+ return true
+end
+
+function char_tracers.string(t)
+ local tt = { }
+ for i=1,#t do
+ tt[i] = utfchar(t[i][1])
+ end
+ return concat(tt,"")
+end
+
+local f_unicode = formatters["%U"]
+
+function char_tracers.unicodes(t,decimal)
+ local tt = { }
+ for i=1,#t do
+ local n = t[i][1]
+ if n == 0 then
+ tt[i] = "-"
+ elseif decimal then
+ tt[i] = n
+ else
+ tt[i] = f_unicode(n)
+ end
+ end
+ return concat(tt," ")
+end
+
+function char_tracers.indices(t,decimal)
+ local tt = { }
+ for i=1,#t do
+ local n = t[i][3]
+ if n == 0 then
+ tt[i] = "-"
+ elseif decimal then
+ tt[i] = n
+ else
+ tt[i] = f_unicode(n)
+ end
+ end
+ return concat(tt," ")
+end
+
+function char_tracers.start()
+ local npc = handlers.characters
+ local list = { }
+ function handlers.characters(head)
+ local n = #list
+ char_tracers.collect(head,list,'before',n)
+ local h, d = npc(head)
+ char_tracers.collect(head,list,'after',n)
+ if #list > n then
+ list[#list+1] = { }
+ end
+ return h, d
+ end
+ function char_tracers.stop()
+ tracers.list['characters'] = list
+ local variables = {
+ ['title'] = 'ConTeXt Character Processing Information',
+ ['color-background-one'] = lmx.get('color-background-yellow'),
+ ['color-background-two'] = lmx.get('color-background-purple'),
+ }
+ lmx.show('context-characters.lmx',variables)
+ handlers.characters = npc
+ tasks.restart("processors", "characters")
+ end
+ tasks.restart("processors", "characters")
+end
+
+local stack = { }
+
+function tracers.start(tag)
+ stack[#stack+1] = tag
+ local tracer = tracers[tag]
+ if tracer and tracer.start then
+ tracer.start()
+ end
+end
+function tracers.stop()
+ local tracer = stack[#stack]
+ if tracer and tracer.stop then
+ tracer.stop()
+ end
+ stack[#stack] = nil
+end
+
+-- experimental
+
+local collection, collecting, messages = { }, false, { }
+
+function step_tracers.start()
+ collecting = true
+end
+
+function step_tracers.stop()
+ collecting = false
+end
+
+function step_tracers.reset()
+ for i=1,#collection do
+ local c = collection[i]
+ if c then
+ free_node_list(c)
+ end
+ end
+ collection, messages = { }, { }
+end
+
+function step_tracers.nofsteps()
+ return context(#collection)
+end
+
+function step_tracers.glyphs(n,i)
+ local c = collection[i]
+ if c then
+ tex.box[n] = hpack_node_list(copy_node_list(c))
+ end
+end
+
+function step_tracers.features()
+ -- we cannot use first_glyph here as it only finds characters with subtype < 256
+ local f = collection[1]
+ while f do
+ if f.id == glyph_code then
+ local tfmdata, t = fontidentifiers[f.font], { }
+ for feature, value in table.sortedhash(tfmdata.shared.features) do
+ if feature == "number" or feature == "features" then
+ -- private
+ elseif type(value) == "boolean" then
+ if value then
+ t[#t+1] = formatters["%s=yes"](feature)
+ else
+ -- skip
+ end
+ else
+ t[#t+1] = formatters["%s=%s"](feature,value)
+ end
+ end
+ if #t > 0 then
+ context(concat(t,", "))
+ else
+ context("no features")
+ end
+ return
+ end
+ f = f.next
+ end
+end
+
+function tracers.fontchar(font,char)
+ local n = new_glyph()
+ n.font, n.char, n.subtype = font, char, 256
+ context(n)
+end
+
+function step_tracers.font(command)
+ local c = collection[1]
+ while c do
+ local id = c.id
+ if id == glyph_code then
+ local font = c.font
+ local name = file.basename(fontproperties[font].filename or "unknown")
+ local size = fontparameters[font].size or 0
+ if command then
+ context[command](font,name,size) -- size in sp
+ else
+ context("[%s: %s @ %p]",font,name,size)
+ end
+ return
+ else
+ c = c.next
+ end
+ end
+end
+
+function step_tracers.codes(i,command)
+ local c = collection[i]
+ while c do
+ local id = c.id
+ if id == glyph_code then
+ if command then
+ local f, c = c.font,c.char
+ local d = fontdescriptions[f]
+ local d = d and d[c]
+ context[command](f,c,d and d.class or "")
+ else
+ context("[%s:U+%04X]",c.font,c.char)
+ end
+ elseif id == whatsit_code and (c.subtype == localpar_code or c.subtype == dir_code) then
+ context("[%s]",c.dir)
+ else
+ context("[%s]",nodecodes[id])
+ end
+ c = c.next
+ end
+end
+
+function step_tracers.messages(i,command,split)
+ local list = messages[i] -- or { "no messages" }
+ if list then
+ for i=1,#list do
+ local l = list[i]
+ if not command then
+ context("(%s)",l)
+ elseif split then
+ local a, b = match(l,"^(.-)%s*:%s*(.*)$")
+ context[command](a or l or "",b or "")
+ else
+ context[command](l)
+ end
+ end
+ end
+end
+
+-- hooks into the node list processor (see otf)
+
+function step_tracers.check(head)
+ if collecting then
+ step_tracers.reset()
+ local n = copy_node_list(head)
+ injections.handler(n,nil,"trace",true)
+ handlers.protectglyphs(n) -- can be option
+ collection[1] = n
+ end
+end
+
+function step_tracers.register(head)
+ if collecting then
+ local nc = #collection+1
+ if messages[nc] then
+ local n = copy_node_list(head)
+ injections.handler(n,nil,"trace",true)
+ handlers.protectglyphs(n) -- can be option
+ collection[nc] = n
+ end
+ end
+end
+
+function step_tracers.message(str,...)
+ str = formatter(str,...)
+ if collecting then
+ local n = #collection + 1
+ local m = messages[n]
+ if not m then m = { } messages[n] = m end
+ m[#m+1] = str
+ end
+ return str -- saves an intermediate var in the caller
+end
+
+--
+
+local threshold = 65536
+
+local function toutf(list,result,nofresult,stopcriterium)
+ if list then
+ for n in traverse_nodes(list) do
+ local id = n.id
+ if id == glyph_code then
+ local components = n.components
+ if components then
+ result, nofresult = toutf(components,result,nofresult)
+ else
+ local c = n.char
+ local fc = fontcharacters[n.font]
+ if fc then
+ local u = fc[c].tounicode
+ if u then
+ for s in gmatch(u,"....") do
+ nofresult = nofresult + 1
+ result[nofresult] = utfchar(tonumber(s,16))
+ end
+ else
+ nofresult = nofresult + 1
+ result[nofresult] = utfchar(c)
+ end
+ else
+ nofresult = nofresult + 1
+ result[nofresult] = utfchar(c)
+ end
+ end
+ elseif id == disc_code then
+ result, nofresult = toutf(n.replace,result,nofresult) -- needed?
+ elseif id == hlist_code or id == vlist_code then
+ -- if nofresult > 0 and result[nofresult] ~= " " then
+ -- nofresult = nofresult + 1
+ -- result[nofresult] = " "
+ -- end
+ result, nofresult = toutf(n.list,result,nofresult)
+ elseif id == glue_code then
+ if nofresult > 0 and result[nofresult] ~= " " then
+ nofresult = nofresult + 1
+ result[nofresult] = " "
+ end
+ elseif id == kern_code and n.kern > threshold then
+ if nofresult > 0 and result[nofresult] ~= " " then
+ nofresult = nofresult + 1
+ result[nofresult] = " "
+ end
+ end
+ if n == stopcriterium then
+ break
+ end
+ end
+ end
+ if nofresult > 0 and result[nofresult] == " " then
+ result[nofresult] = nil
+ nofresult = nofresult - 1
+ end
+ return result, nofresult
+end
+
+function nodes.toutf(list,stopcriterium)
+ local result, nofresult = toutf(list,{},0,stopcriterium)
+ return concat(result)
+end
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-29 06:57:12 +0000