diff options
Diffstat (limited to 'tex/context/base/node-ini.lua')
| -rw-r--r-- | tex/context/base/node-ini.lua | 219 |
1 files changed, 29 insertions, 190 deletions
diff --git a/tex/context/base/node-ini.lua b/tex/context/base/node-ini.lua index 5a3986c3a..652b46caf 100644 --- a/tex/context/base/node-ini.lua +++ b/tex/context/base/node-ini.lua @@ -13,13 +13,10 @@ modules.</p> -- this module is being reconstructed -local next, type = next, type -local format, match, gsub = string.format, string.match, string.gsub +local next, type, tostring = next, type, tostring +local gsub = string.gsub local concat, remove = table.concat, table.remove -local sortedhash, sortedkeys, swapped, tohash = table.sortedhash, table.sortedkeys, table.swapped, table.tohash -local utfchar = utf.char -local lpegmatch = lpeg.match -local formatcolumns = utilities.formatters.formatcolumns +local sortedhash, sortedkeys, swapped = table.sortedhash, table.sortedkeys, table.swapped --[[ldx-- <p>Access to nodes is what gives <l n='luatex'/> its power. Here we @@ -54,20 +51,12 @@ into the <l n='tex'/> engine, but this is a not so natural extension.</p> also ignore the empty nodes. [This is obsolete!]</p> --ldx]]-- -local traverse = node.traverse -local traverse_id = node.traverse_id -local free_node = node.free -local remove_node = node.remove -local insert_node_before = node.insert_before -local insert_node_after = node.insert_after -local node_fields = node.fields - -local allocate = utilities.storage.allocate +nodes = nodes or { } +local nodes = nodes +nodes.handlers = nodes.handlers or { } -nodes = nodes or { } -local nodes = nodes - -nodes.handlers = nodes.handlers or { } +local allocate = utilities.storage.allocate +local formatcolumns = utilities.formatters.formatcolumns -- there will be more of this: @@ -103,7 +92,7 @@ local penaltycodes = allocate { -- unfortunately not used table.setmetatableindex(penaltycodes,function(t,k) return "userpenalty" end) -- not used anyway -local noadcodes = allocate { +local noadcodes = allocate { -- simple nodes [ 0] = "ord", [ 1] = "opdisplaylimits", [ 2] = "oplimits", @@ -170,6 +159,20 @@ local disccodes = allocate { [5] = "second", -- hard second item } +local accentcodes = allocate { + [0] = "bothflexible", + [1] = "fixedtop", + [2] = "fixedbottom", + [3] = "fixedboth", +} + +local fencecodes = allocate { + [0] = "unset", + [1] = "left", + [2] = "middle", + [3] = "right", +} + local function simplified(t) local r = { } for k, v in next, t do @@ -193,6 +196,8 @@ mathcodes = allocate(swapped(mathcodes,mathcodes)) fillcodes = allocate(swapped(fillcodes,fillcodes)) margincodes = allocate(swapped(margincodes,margincodes)) disccodes = allocate(swapped(disccodes,disccodes)) +accentcodes = allocate(swapped(accentcodes,accentcodes)) +fencecodes = allocate(swapped(fencecodes,fencecodes)) nodes.skipcodes = skipcodes nodes.gluecodes = skipcodes -- more official nodes.noadcodes = noadcodes @@ -206,6 +211,8 @@ nodes.mathcodes = mathcodes nodes.fillcodes = fillcodes nodes.margincodes = margincodes nodes.disccodes = disccodes nodes.discretionarycodes = disccodes +nodes.accentcodes = accentcodes +nodes.fencecodes = fencecodes listcodes.row = listcodes.alignment listcodes.column = listcodes.alignment @@ -227,6 +234,8 @@ nodes.codes = allocate { -- mostly for listing margin = margincodes, disc = disccodes, whatsit = whatcodes, + accent = accentcodes, + fence = fencecodes, } local report_codes = logs.reporter("nodes","codes") @@ -248,174 +257,4 @@ function nodes.showcodes() end end -local whatsit_node = nodecodes.whatsit - -local messyhack = tohash { -- temporary solution - nodecodes.attributelist, - nodecodes.attribute, - nodecodes.gluespec, - nodecodes.action, -} - -function nodes.fields(n) - local id = n.id - if id == whatsit_node then - return node_fields(id,n.subtype) - else - local t = node_fields(id) - if messyhack[id] then - for i=1,#t do - if t[i] == "subtype" then - remove(t,i) - break - end - end - end - return t - end -end - trackers.register("system.showcodes", nodes.showcodes) - -local hlist_code = nodecodes.hlist -local vlist_code = nodecodes.vlist -local glue_code = nodecodes.glue - --- if t.id == glue_code then --- local s = t.spec --- print(t) --- print(s,s and s.writable) --- if s and s.writable then --- free_node(s) --- end --- t.spec = nil --- end - -local function remove(head, current, free_too) - local t = current - head, current = remove_node(head,current) - if t then - if free_too then - free_node(t) - t = nil - else - t.next = nil - t.prev = nil - end - end - return head, current, t -end - -nodes.remove = remove - -function nodes.delete(head,current) - return remove(head,current,true) -end - -nodes.before = insert_node_before -nodes.after = insert_node_after - --- we need to test this, as it might be fixed now - -function nodes.before(h,c,n) - if c then - if c == h then - n.next = h - n.prev = nil - h.prev = n - else - local cp = c.prev - n.next = c - n.prev = cp - if cp then - cp.next = n - end - c.prev = n - return h, n - end - end - return n, n -end - -function nodes.after(h,c,n) - if c then - local cn = c.next - if cn then - n.next = cn - cn.prev = n - else - n.next = nil - end - c.next = n - n.prev = c - return h, n - end - return n, n -end - --- local h, c = nodes.replace(head,current,new) --- local c = nodes.replace(false,current,new) --- local c = nodes.replace(current,new) - -function nodes.replace(head,current,new) -- no head returned if false - if not new then - head, current, new = false, head, current - end - local prev, next = current.prev, current.next - if next then - new.next = next - next.prev = new - end - if prev then - new.prev = prev - prev.next = new - end - if head then - if head == current then - head = new - end - free_node(current) - return head, new - else - free_node(current) - return new - end -end - --- will move - -local function count(stack,flat) - local n = 0 - while stack do - local id = stack.id - if not flat and id == hlist_code or id == vlist_code then - local list = stack.list - if list then - n = n + 1 + count(list) -- self counts too - else - n = n + 1 - end - else - n = n + 1 - end - stack = stack.next - end - return n -end - -nodes.count = count - -local left, space = lpeg.P("<"), lpeg.P(" ") - -local reference = left * (1-left)^0 * left * space^0 * lpeg.C((1-space)^0) - -function nodes.reference(n) - return lpegmatch(reference,tostring(n)) -end - -if not node.next then - - function node.next(n) return n and n.next end - function node.prev(n) return n and n.prev end - -end |