diff options
Diffstat (limited to 'tex/context/base/math-ini.lua')
| -rw-r--r-- | tex/context/base/math-ini.lua | 35 |
1 files changed, 32 insertions, 3 deletions
diff --git a/tex/context/base/math-ini.lua b/tex/context/base/math-ini.lua index dc1e9f29a..80d99d26d 100644 --- a/tex/context/base/math-ini.lua +++ b/tex/context/base/math-ini.lua @@ -445,16 +445,24 @@ function commands.doifelseutfmathbelow(chr) end -- helpers +-- +-- 1: step 1 +-- 2: step 2 +-- 3: htdp * 1.33^n +-- 4: size * 1.33^n -function mathematics.big(tfmdata,unicode,n) +function mathematics.big(tfmdata,unicode,n,method) local t = tfmdata.characters local c = t[unicode] - if c then + if c and n > 0 then local vv = c.vert_variants or c.next and t[c.next].vert_variants if vv then local vvn = vv[n] return vvn and vvn.glyph or vv[#vv].glyph or unicode - else + elseif method == 1 or method == 2 then + if method == 2 then -- large steps + n = n * 2 + end local next = c.next while next do if n <= 1 then @@ -469,6 +477,27 @@ function mathematics.big(tfmdata,unicode,n) end end end + else + local size = 1.33^n + if method == 4 then + size = tfmdata.parameters.size * size + else -- if method == 3 then + size = (c.height + c.depth) * size + end + local next = c.next + while next do + local cn = t[next] + if (cn.height + cn.depth) >= size then + return next + else + local tn = cn.next + if tn then + next = tn + else + return next + end + end + end end end return unicode |