diff options
Diffstat (limited to 'tex/context/base/mkxl/back-exp-imp-mth.lmt')
| -rw-r--r-- | tex/context/base/mkxl/back-exp-imp-mth.lmt | 81 |
1 files changed, 52 insertions, 29 deletions
diff --git a/tex/context/base/mkxl/back-exp-imp-mth.lmt b/tex/context/base/mkxl/back-exp-imp-mth.lmt index 73c09d79e..8751ca89d 100644 --- a/tex/context/base/mkxl/back-exp-imp-mth.lmt +++ b/tex/context/base/mkxl/back-exp-imp-mth.lmt @@ -21,6 +21,10 @@ local extras = backend.extras local checks = backend.checks local finalizers = backend.finalizers +----- bpfactor = number.dimenfactors.bp +----- f_points = string.formatters["%p"] +local f_em = string.formatters["%.6Nem"] + local implement = interfaces.implement do @@ -155,6 +159,7 @@ do mi = true, mo = true, mn = true, + mspace = true, } local function checkmath(root) -- we can provide utf.toentities as an option @@ -394,6 +399,17 @@ do elseif tg == "break" then di.skip = "comment" i = i + 1 + elseif tg == "mspace" then + -- di.empty = true + local s = specifications[di.fulltag] + local e = s and s.emfactor + if e and e ~= 0 then + di.element = "mspace" + di.attributes = { + width = f_em(e), + } + end + i = i + 1 elseif tg == "mtext" then -- this is only needed for unboxed mtexts ... all kind of special -- tex border cases and optimizations ... trial and error @@ -519,6 +535,8 @@ do local tg = di.tg if tg == "mtext" or tg == "ms" then return di + elseif tg == "mspace" then + return di else local data = di.data local ndata = #data @@ -530,38 +548,43 @@ do end if d then local content = d.content - if not content then + if d.tg == "mspace" then + n = n + 1 + data[n] = d + d.data = { } + elseif not content then +-- if not content then n = n + 1 d.__i__ = n data[n] = d - elseif content == " " or content == "" then - if di.tg == "mspace" then - -- we append or prepend a space to a preceding or following mtext - local parent = di.__p__ - local index = di.__i__ -- == i - local data = parent.data - if index > 1 then - local d = data[index-1] - if d.tg == "mtext" then - local dd = d.data - local dn = dd[#dd] - local dc = dn.content - if dc then - dn.content = dc .. content - end - end - elseif index < ndata then - local d = data[index+1] - if d.tg == "mtext" then - local dd = d.data - local dn = dd[1] - local dc = dn.content - if dc then - dn.content = content .. dc - end - end - end - end +-- elseif content == " " or content == "" then +-- if d.tg == "mspace" then +-- -- we append or prepend a space to a preceding or following mtext +-- local parent = di.__p__ +-- local index = di.__i__ -- == i +-- local data = parent.data +-- if index > 1 then +-- local d = data[index-1] +-- if d.tg == "mtext" then +-- local dd = d.data +-- local dn = dd[#dd] +-- local dc = dn.content +-- if dc then +-- dn.content = dc .. content +-- end +-- end +-- elseif index < ndata then +-- local d = data[index+1] +-- if d.tg == "mtext" then +-- local dd = d.data +-- local dn = dd[1] +-- local dc = dn.content +-- if dc then +-- dn.content = content .. dc +-- end +-- end +-- end +-- end else n = n + 1 data[n] = d |