diff options
Diffstat (limited to 'tex/context/base/mkiv/util-tab.lua')
| -rw-r--r-- | tex/context/base/mkiv/util-tab.lua | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/tex/context/base/mkiv/util-tab.lua b/tex/context/base/mkiv/util-tab.lua index 0ebe1b5b1..0521a2a4f 100644 --- a/tex/context/base/mkiv/util-tab.lua +++ b/tex/context/base/mkiv/util-tab.lua @@ -486,11 +486,11 @@ end local selfmapper = { __index = function(t,k) t[k] = k return k end } -function table.twowaymapper(t) - if not t then - t = { } - else - local zero = rawget(t,0) +function table.twowaymapper(t) -- takes a 0/1 .. n indexed table and returns + if not t then -- it with string-numbers as indices + reverse + t = { } -- mapping (all strings) .. used in cvs etc but + else -- typically a helper that one forgets about + local zero = rawget(t,0) -- so it might move someplace else for i=zero and 0 or 1,#t do local ti = t[i] -- t[1] = "one" if ti then |