diff options
Diffstat (limited to 'tex/context/base/node-rul.lua')
| -rw-r--r-- | tex/context/base/node-rul.lua | 174 |
1 files changed, 127 insertions, 47 deletions
diff --git a/tex/context/base/node-rul.lua b/tex/context/base/node-rul.lua index 96d6bdf41..36d56a16c 100644 --- a/tex/context/base/node-rul.lua +++ b/tex/context/base/node-rul.lua @@ -13,12 +13,28 @@ if not modules then modules = { } end modules ['node-rul'] = { local attributes, nodes, node = attributes, nodes, node -local nodecodes = nodes.nodecodes -local tasks = nodes.tasks - -local glyph_code = nodecodes.glyph -local disc_code = nodecodes.disc -local rule_code = nodecodes.rule +local nuts = nodes.nuts +local tonode = nuts.tonode +local tonut = nuts.tonut + +local getfield = nuts.getfield +local setfield = nuts.setfield +local getnext = nuts.getnext +local getprev = nuts.getprev +local getid = nuts.getid +local getattr = nuts.getattr +local setattr = nuts.setattr +local getfont = nuts.getfont +local getsubtype = nuts.getsubtype +local getchar = nuts.getchar +local getlist = nuts.getlist + +local nodecodes = nodes.nodecodes +local tasks = nodes.tasks + +local glyph_code = nodecodes.glyph +local disc_code = nodecodes.disc +local rule_code = nodecodes.rule function nodes.striprange(first,last) -- todo: dir if first and last then -- just to be sure @@ -26,11 +42,11 @@ function nodes.striprange(first,last) -- todo: dir return first, last end while first and first ~= last do - local id = first.id + local id = getid(first) if id == glyph_code or id == disc_code then -- or id == rule_code break else - first = first.next + first = getnext(first) end end if not first then @@ -39,13 +55,13 @@ function nodes.striprange(first,last) -- todo: dir return first, last end while last and last ~= first do - local id = last.id + local id = getid(last) if id == glyph_code or id == disc_code then -- or id == rule_code break else - local prev = last.prev -- luatex < 0.70 has italic correction kern not prev'd + local prev = getprev(last) -- luatex < 0.70 has italic correction kern not prev'd if prev then - last = last.prev + last = prev else break end @@ -73,12 +89,12 @@ local a_color = attributes.private('color') local a_transparency = attributes.private('transparency') local a_colorspace = attributes.private('colormodel') -local insert_node_before = node.insert_before -local insert_node_after = node.insert_after -local striprange = nodes.striprange -local list_dimensions = node.dimensions +local insert_node_before = nuts.insert_before +local insert_node_after = nuts.insert_after +local list_dimensions = nuts.dimensions +local hpack_nodes = nuts.hpack -local hpack_nodes = node.hpack +local striprange = nodes.striprange local fontdata = fonts.hashes.identifiers local variables = interfaces.variables @@ -111,7 +127,7 @@ local dir_code = whatcodes.dir local kerning_code = kerncodes.kern -local nodepool = nodes.pool +local nodepool = nuts.pool local new_rule = nodepool.rule local new_kern = nodepool.kern @@ -141,9 +157,9 @@ local function processwords(attribute,data,flush,head,parent) -- we have hlistdi local f, l, a, d, i, class local continue, done, strip, level = false, false, true, -1 while n do - local id = n.id + local id = getid(n) if id == glyph_code or id == rule_code then - local aa = n[attribute] + local aa = getattr(n,attribute) if aa then if aa == a then if not f then -- ? @@ -172,13 +188,13 @@ local function processwords(attribute,data,flush,head,parent) -- we have hlistdi end f, l, a = nil, nil, nil end --- elseif f and (id == disc_code or (id == kern_code and n.subtype == kerning_code)) then +-- elseif f and (id == disc_code or (id == kern_code and getsubtype(n) == kerning_code)) then -- l = n elseif id == disc_code then if f then l = n end - elseif id == kern_code and n.subtype == kerning_code then + elseif id == kern_code and getsubtype(n) == kerning_code then if f then l = n end @@ -187,11 +203,11 @@ local function processwords(attribute,data,flush,head,parent) -- we have hlistdi head, done = flush(head,f,l,d,level,parent,strip), true f, l, a = nil, nil, nil end - local list = n.list + local list = getlist(n) if list then - n.list = processwords(attribute,data,flush,list,n) + setfield(n,"list",(processwords(attribute,data,flush,list,n))) -- watch () end - elseif checkdir and id == whatsit_code and n.subtype == dir_code then -- only changes in dir, we assume proper boundaries + elseif checkdir and id == whatsit_code and getsubtype(n) == dir_code then -- only changes in dir, we assume proper boundaries if f and a then l = n end @@ -203,8 +219,8 @@ local function processwords(attribute,data,flush,head,parent) -- we have hlistdi -- l = n elseif id == glue_code then -- catch \underbar{a} \underbar{a} (subtype test is needed) - local subtype = n.subtype - if n[attribute] and (subtype == userskip_code or subtype == spaceskip_code or subtype == xspaceskip_code) then + local subtype = getsubtype(n) + if getattr(n,attribute) and (subtype == userskip_code or subtype == spaceskip_code or subtype == xspaceskip_code) then l = n else head, done = flush(head,f,l,d,level,parent,strip), true @@ -216,7 +232,7 @@ local function processwords(attribute,data,flush,head,parent) -- we have hlistdi f, l, a = nil, nil, nil end end - n = n.next + n = getnext(n) end if f then head, done = flush(head,f,l,d,level,parent,strip), true @@ -227,7 +243,16 @@ local function processwords(attribute,data,flush,head,parent) -- we have hlistdi end end -nodes.processwords = processwords +-- nodes.processwords = processwords + +nodes.processwords = function(attribute,data,flush,head,parent) -- we have hlistdir and local dir + head = tonut(head) + if parent then + parent = tonut(parent) + end + local head, done = processwords(attribute,data,flush,head,parent) + return tonode(head), done +end -- @@ -246,7 +271,7 @@ end local a_viewerlayer = attributes.private("viewerlayer") local function flush_ruled(head,f,l,d,level,parent,strip) -- not that fast but acceptable for this purpose - if f.id ~= glyph_code then + if getid(f) ~= glyph_code then -- saveguard ... we need to deal with rules and so (math) return head end @@ -264,16 +289,16 @@ local function flush_ruled(head,f,l,d,level,parent,strip) -- not that fast but a if not f then return head end - local w = list_dimensions(parent.glue_set,parent.glue_sign,parent.glue_order,f,l.next) + local w = list_dimensions(getfield(parent,"glue_set"),getfield(parent,"glue_sign"),getfield(parent,"glue_order"),f,getnext(l)) local method, offset, continue, dy, order, max = d.method, d.offset, d.continue, d.dy, d.order, d.max local rulethickness, unit = d.rulethickness, d.unit local ma, ca, ta = d.ma, d.ca, d.ta - local colorspace = ma > 0 and ma or f[a_colorspace] or 1 - local color = ca > 0 and ca or f[a_color] - local transparency = ta > 0 and ta or f[a_transparency] + local colorspace = ma > 0 and ma or getattr(f,a_colorspace) or 1 + local color = ca > 0 and ca or getattr(f,a_color) + local transparency = ta > 0 and ta or getattr(f,a_transparency) local foreground = order == v_foreground - local e = dimenfactor(unit,f.font) -- what if no glyph node + local e = dimenfactor(unit,getfont(f)) -- what if no glyph node local rt = tonumber(rulethickness) if rt then @@ -281,7 +306,7 @@ local function flush_ruled(head,f,l,d,level,parent,strip) -- not that fast but a else local n, u = splitdimen(rulethickness) if n and u then -- we need to intercept ex and em and % and ... - rulethickness = n * dimenfactor(u,fontdata[f.font]) / 2 + rulethickness = n * dimenfactor(u,fontdata[getfont(f)]) / 2 else rulethickness = 1/5 end @@ -300,18 +325,18 @@ local function flush_ruled(head,f,l,d,level,parent,strip) -- not that fast but a local ht = (offset+(i-1)*dy)*e + rulethickness - m local dp = -(offset+(i-1)*dy)*e + rulethickness + m local r = new_rule(w,ht,dp) - local v = f[a_viewerlayer] + local v = getattr(f,a_viewerlayer) -- quick hack if v then - r[a_viewerlayer] = v + setattr(r,a_viewerlayer,v) end -- if color then - r[a_colorspace] = colorspace - r[a_color] = color + setattr(r,a_colorspace,colorspace) + setattr(r,a_color,color) end if transparency then - r[a_transparency] = transparency + setattr(r,a_transparency,transparency) end local k = new_kern(-w) if foreground then @@ -365,21 +390,27 @@ local function flush_shifted(head,first,last,data,level,parent,strip) -- not tha if true then first, last = striprange(first,last) end - local prev, next = first.prev, last.next - first.prev, last.next = nil, nil - local width, height, depth = list_dimensions(parent.glue_set,parent.glue_sign,parent.glue_order,first,next) + local prev = getprev(first) + local next = getnext(last) + setfield(first,"prev",nil) + setfield(last,"next",nil) + local width, height, depth = list_dimensions(getfield(parent,"glue_set"),getfield(parent,"glue_sign"),getfield(parent,"glue_order"),first,next) local list = hpack_nodes(first,width,"exactly") if first == head then head = list end if prev then - prev.next, list.prev = list, prev + setfield(prev,"next",list) + setfield(list,"prev",prev) end if next then - next.prev, list.next = list, next + setfield(next,"prev",list) + setfield(list,"next",next) end - local raise = data.dy * dimenfactor(data.unit,fontdata[first.font]) - list.shift, list.height, list.depth = raise, height, depth + local raise = data.dy * dimenfactor(data.unit,fontdata[getfont(first)]) + setfield(list,"shift",raise) + setfield(list,"height",height) + setfield(list,"depth",depth) if trace_shifted then report_shifted("width %p, nodes %a, text %a",width,n_tostring(first,last),n_tosequence(first,last,true)) end @@ -393,3 +424,52 @@ nodes.shifts.handler = function(head) return process(a_shifted,data,flush_shifte function nodes.shifts.enable() tasks.enableaction("shipouts","nodes.shifts.handler") end + +-- interface + +local implement = interfaces.implement + +implement { + name = "definerule", + actions = { nodes.rules.define, context }, + arguments = { + { + { "continue" }, + { "unit" }, + { "order" }, + { "method", "integer" }, + { "offset", "number" }, + { "rulethickness", "string" }, + { "dy", "number" }, + { "max", "number" }, + { "ma", "integer" }, + { "ca", "integer" }, + { "ta", "integer" }, + } + } +} + +implement { + name = "enablerules", + onlyonce = true, + actions = nodes.rules.enable +} + +implement { + name = "defineshift", + actions = { nodes.shifts.define, context }, + arguments = { + { + { "continue" }, + { "unit" }, + { "method", "integer" }, + { "dy", "number" }, + } + } +} + +implement { + name = "enableshifts", + onlyonce = true, + actions = nodes.shifts.enable +} |