diff options
Diffstat (limited to 'tex/context/base/strc-bkm.lua')
| -rw-r--r-- | tex/context/base/strc-bkm.lua | 124 |
1 files changed, 39 insertions, 85 deletions
diff --git a/tex/context/base/strc-bkm.lua b/tex/context/base/strc-bkm.lua index 1104157bd..8f8a3ca24 100644 --- a/tex/context/base/strc-bkm.lua +++ b/tex/context/base/strc-bkm.lua @@ -6,75 +6,22 @@ if not modules then modules = { } end modules ['strc-bkm'] = { license = "see context related readme files" } --- todo: move some code to backend +-- Future version will support adding arbitrary bookmarks with +-- associated complex actions (rather trivial to implement). local format, concat, gsub = string.format, table.concat, string.gsub local texsprint, utfvalues = tex.sprint, string.utfvalues local ctxcatcodes = tex.ctxcatcodes -local lists = structure.lists - --- todo: backend code - -local function pdfhexified(str) - local t = { } - t[#t+1] = "feff" - for b in utfvalues(str) do - if b < 0x10000 then - t[#t+1] = format("%04x",b) - else - t[#t+1] = format("%04x%04x",b/1024+0xD800,b%1024+0xDC00) - end - end - return concat(t) -end - --- todo: lpeg cleaner - -local function pdfbookmark(level,n,text,page,open) - text = gsub(text,"\\([A-Z]+)","%1") -- \LOGO - text = gsub(text,"\\ "," ") -- \ - text = gsub(text,"\\([A-Za-z]+) *{(.-)}","%1") -- \bla{...} - text = gsub(text," +"," ") -- spaces - text = pdfhexified(text) -- somehow must happen here - texsprint(ctxcatcodes,format("\\doinsertbookmark{%s}{%s}{%s}{%s}{%s}",level,n,text,page,open)) -end - --- end of todo - +local lists = structure.lists local levelmap = structure.sections.levelmap structure.bookmarks = structure.bookmarks or { } local bookmarks = structure.bookmarks -local function nofchildren(list,current,currentlevel) - local i = current + 1 - local li = list[i] - if li then - local nextlevel = levelmap[li.metadata.name] - if nextlevel and nextlevel > currentlevel then - local n = 1 - i = i + 1 - li = list[i] - while li do - local somelevel = levelmap[li.metadata.name] - if somelevel then - if somelevel == nextlevel then - n = n + 1 - elseif somelevel < nextlevel then - break - end - end - i = i + 1 - li = list[i] - end - return n - end - end - return 0 -end +bookmarks.method = "internal" -- or "page" local names, opened = "", "" @@ -83,34 +30,6 @@ function bookmarks.register(n,o) if opened == "" then opened = o else opened = opened .. "," .. o end end -function bookmarks.place() - if name ~= "" then - local list = lists.filter(names,"all",nil,lists.collected) - if #list > 0 then - local allopen = (opened == interfaces.variables.all) and 1 - opened = aux.settings_to_set(opened) - for i=1,#list do - local li = list[i] - local metadata = li.metadata - if not metadata.nolist and levelmap[metadata.name] then - local name, titledata = metadata.name, li.titledata - if titledata then - local level = levelmap[name] - local children = nofchildren(list,i,level) - local title = titledata.bookmark or titledata.title or "?" - local realpage = li.references and li.references.realpage - if realpage then - local open = allopen or (opened[name] and 1) - pdfbookmark(level,children,title,realpage,allopen or open or 0) - end - end - end - end - bookmarks.place = function() end - end - end -end - function bookmarks.overload(name,text) local l, ls = lists.tobesaved, nil if #l == 0 then @@ -131,3 +50,38 @@ function bookmarks.overload(name,text) ls.titledata.bookmark = text end end + +local function stripped(str) -- kind of generic + str = gsub(str,"\\([A-Z]+)","%1") -- \LOGO + str = gsub(str,"\\ "," ") -- \ + str = gsub(str,"\\([A-Za-z]+) *{(.-)}","%1") -- \bla{...} + str = gsub(str," +"," ") -- spaces + return str +end + +function bookmarks.place() + if names ~= "" then + local list = lists.filter(names,"all",nil,lists.collected) + if #list > 0 then + local opened, levels = aux.settings_to_set(opened), { } + for i=1,#list do + local li = list[i] + local metadata = li.metadata + local name = metadata.name + if not metadata.nolist and levelmap[name] then + local titledata = li.titledata + if titledata then + levels[#levels+1] = { + levelmap[name], + stripped(titledata.bookmark or titledata.title or "?"), + li.references, -- has internal and realpage + allopen or opened[name] + } + end + end + end + backends.codeinjections.addbookmarks(levels,bookmarks.method) + end + function bookmarks.place() end -- prevent second run + end +end |