diff options
Diffstat (limited to 'tex/context/base/mkxl/lpdf-tag.lmt')
| -rw-r--r-- | tex/context/base/mkxl/lpdf-tag.lmt | 50 |
1 files changed, 35 insertions, 15 deletions
diff --git a/tex/context/base/mkxl/lpdf-tag.lmt b/tex/context/base/mkxl/lpdf-tag.lmt index 21f5b246d..8c76ca694 100644 --- a/tex/context/base/mkxl/lpdf-tag.lmt +++ b/tex/context/base/mkxl/lpdf-tag.lmt @@ -81,6 +81,8 @@ local parent_ref -- delayed local root -- delayed local names = { } local tree = { } +local firstintree = false +local lastintree = false local elements = { } local structurestags = structures.tags @@ -137,9 +139,14 @@ local function finishstructure() if root and #structure_kids > 0 then local nums = pdfarray() local n = 0 - for i=1,#tree do - n = n + 1 ; nums[n] = i - 1 - n = n + 1 ; nums[n] = pdfreference(pdfflushobject(tree[i])) + for i=firstintree,lastintree do + local ti = tree[i] + if ti then + n = n + 1 ; nums[n] = i - 1 + n = n + 1 ; nums[n] = pdfreference(pdfflushobject(ti)) + else + report_tags("beware: missing page %i in tree", i) + end end local parenttree = pdfdictionary { Nums = nums @@ -191,6 +198,19 @@ local function initializepage() pagenum = texgetcount("realpageno") pageref = pdfreference(pdfpagereference(pagenum)) list = pdfarray() + -- hm, can be later than 1 + if not firstintree then + if pagenum > 1 then + report_tags("beware: first page in tree is %i", pagenum) + end + firstintree = pagenum + lastintree = pagenum + end + if pagenum > lastintree then + lastintree = pagenum + else + report_tags("beware: page order problem in tree at page %i", pagenum) + end tree[pagenum] = list -- we can flush after done, todo end @@ -382,19 +402,19 @@ function nodeinjections.addtags(head) for n, id in nextnode, head do if id == glyph_code then -- maybe also disc -if getchar(n) ~= 0 then - local at = getattr(n,a_tagged) or false -- false: pagebody or so, so artifact - -- if not at then - -- range = nil - -- elseif ... - if last ~= at then - range = { at, "glyph", n, n, list } -- attr id start stop list - ranges[#ranges+1] = range - last = at - elseif range then - range[4] = n -- stop + if getchar(n) ~= 0 then + local at = getattr(n,a_tagged) or false -- false: pagebody or so, so artifact + -- if not at then + -- range = nil + -- elseif ... + if last ~= at then + range = { at, "glyph", n, n, list } -- attr id start stop list + ranges[#ranges+1] = range + last = at + elseif range then + range[4] = n -- stop + end end -end elseif id == hlist_code or id == vlist_code then local at = getattr(n,a_image) if at then |