diff options
Diffstat (limited to 'tex/context/base/supp-box.lua')
| -rw-r--r-- | tex/context/base/supp-box.lua | 224 |
1 files changed, 112 insertions, 112 deletions
diff --git a/tex/context/base/supp-box.lua b/tex/context/base/supp-box.lua index c7382834a..f564723ed 100644 --- a/tex/context/base/supp-box.lua +++ b/tex/context/base/supp-box.lua @@ -1,112 +1,112 @@ -if not modules then modules = { } end modules ['supp-box'] = { - version = 1.001, - comment = "companion to supp-box.mkiv", - author = "Hans Hagen, PRAGMA-ADE, Hasselt NL", - copyright = "PRAGMA ADE / ConTeXt Development Team", - license = "see context related readme files" -} - --- this is preliminary code - -local report_hyphenation = logs.reporter("languages","hyphenation") - -local tex, node = tex, node -local context, commands, nodes = context, commands, nodes - -local nodecodes = nodes.nodecodes - -local disc_code = nodecodes.disc -local hlist_code = nodecodes.hlist -local vlist_code = nodecodes.vlist -local glue_code = nodecodes.glue -local glyph_code = nodecodes.glyph - -local new_penalty = nodes.pool.penalty - -local free_node = node.free -local copynodelist = node.copy_list -local copynode = node.copy -local texbox = tex.box - -local function hyphenatedlist(list) - while list do - local id, next, prev = list.id, list.next, list.prev - if id == disc_code then - local hyphen = list.pre - if hyphen then - local penalty = new_penalty(-500) - hyphen.next, penalty.prev = penalty, hyphen - prev.next, next.prev = hyphen, penalty - penalty.next, hyphen.prev = next, prev - list.pre = nil - free_node(list) - end - elseif id == vlist_code or id == hlist_code then - hyphenatedlist(list.list) - end - list = next - end -end - -commands.hyphenatedlist = hyphenatedlist - -function commands.showhyphenatedinlist(list) - report_hyphenation("show: %s",nodes.listtoutf(list,false,true)) -end - -local function checkedlist(list) - if type(list) == "number" then - return texbox[list].list - else - return list - end -end - -local function applytochars(list,what,nested) - local doaction = context[what or "ruledhbox"] - local noaction = context - local current = checkedlist(list) - while current do - local id = current.id - if nested and (id == hlist_code or id == vlist_code) then - context.beginhbox() - applytochars(current.list,what,nested) - context.endhbox() - elseif id ~= glyph_code then - noaction(copynode(current)) - else - doaction(copynode(current)) - end - current = current.next - end -end - -local function applytowords(list,what,nested) - local doaction = context[what or "ruledhbox"] - local noaction = context - local current = checkedlist(list) - local start - while current do - local id = current.id - if id == glue_code then - if start then - doaction(copynodelist(start,current)) - start = nil - end - noaction(copynode(current)) - elseif nested and (id == hlist_code or id == vlist_code) then - context.beginhbox() - applytowords(current.list,what,nested) - context.egroup() - elseif not start then - start = current - end - current = current.next - end - if start then - doaction(copynodelist(start)) - end -end - -commands.applytochars = applytochars -commands.applytowords = applytowords +if not modules then modules = { } end modules ['supp-box'] = {
+ version = 1.001,
+ comment = "companion to supp-box.mkiv",
+ author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright = "PRAGMA ADE / ConTeXt Development Team",
+ license = "see context related readme files"
+}
+
+-- this is preliminary code
+
+local report_hyphenation = logs.reporter("languages","hyphenation")
+
+local tex, node = tex, node
+local context, commands, nodes = context, commands, nodes
+
+local nodecodes = nodes.nodecodes
+
+local disc_code = nodecodes.disc
+local hlist_code = nodecodes.hlist
+local vlist_code = nodecodes.vlist
+local glue_code = nodecodes.glue
+local glyph_code = nodecodes.glyph
+
+local new_penalty = nodes.pool.penalty
+
+local free_node = node.free
+local copynodelist = node.copy_list
+local copynode = node.copy
+local texbox = tex.box
+
+local function hyphenatedlist(list)
+ while list do
+ local id, next, prev = list.id, list.next, list.prev
+ if id == disc_code then
+ local hyphen = list.pre
+ if hyphen then
+ local penalty = new_penalty(-500)
+ hyphen.next, penalty.prev = penalty, hyphen
+ prev.next, next.prev = hyphen, penalty
+ penalty.next, hyphen.prev = next, prev
+ list.pre = nil
+ free_node(list)
+ end
+ elseif id == vlist_code or id == hlist_code then
+ hyphenatedlist(list.list)
+ end
+ list = next
+ end
+end
+
+commands.hyphenatedlist = hyphenatedlist
+
+function commands.showhyphenatedinlist(list)
+ report_hyphenation("show: %s",nodes.listtoutf(list,false,true))
+end
+
+local function checkedlist(list)
+ if type(list) == "number" then
+ return texbox[list].list
+ else
+ return list
+ end
+end
+
+local function applytochars(list,what,nested)
+ local doaction = context[what or "ruledhbox"]
+ local noaction = context
+ local current = checkedlist(list)
+ while current do
+ local id = current.id
+ if nested and (id == hlist_code or id == vlist_code) then
+ context.beginhbox()
+ applytochars(current.list,what,nested)
+ context.endhbox()
+ elseif id ~= glyph_code then
+ noaction(copynode(current))
+ else
+ doaction(copynode(current))
+ end
+ current = current.next
+ end
+end
+
+local function applytowords(list,what,nested)
+ local doaction = context[what or "ruledhbox"]
+ local noaction = context
+ local current = checkedlist(list)
+ local start
+ while current do
+ local id = current.id
+ if id == glue_code then
+ if start then
+ doaction(copynodelist(start,current))
+ start = nil
+ end
+ noaction(copynode(current))
+ elseif nested and (id == hlist_code or id == vlist_code) then
+ context.beginhbox()
+ applytowords(current.list,what,nested)
+ context.egroup()
+ elseif not start then
+ start = current
+ end
+ current = current.next
+ end
+ if start then
+ doaction(copynodelist(start))
+ end
+end
+
+commands.applytochars = applytochars
+commands.applytowords = applytowords
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