diff options
Diffstat (limited to 'Master/texmf-dist/tex/luatex/lualibs/lualibs-table.lua')
-rw-r--r-- | Master/texmf-dist/tex/luatex/lualibs/lualibs-table.lua | 30 |
1 files changed, 27 insertions, 3 deletions
diff --git a/Master/texmf-dist/tex/luatex/lualibs/lualibs-table.lua b/Master/texmf-dist/tex/luatex/lualibs/lualibs-table.lua index 11cb66bef1e..f361f3d20c4 100644 --- a/Master/texmf-dist/tex/luatex/lualibs/lualibs-table.lua +++ b/Master/texmf-dist/tex/luatex/lualibs/lualibs-table.lua @@ -129,10 +129,13 @@ local function sortedhash(t,cmp) s = sortedkeys(t) -- the robust one end local n = 0 + local m = #s local function kv(s) - n = n + 1 - local k = s[n] - return k, t[k] + if n < m then + n = n + 1 + local k = s[n] + return k, t[k] + end end return kv, s else @@ -1054,3 +1057,24 @@ function table.sorted(t,...) sort(t,...) return t -- still sorts in-place end + +-- + +function table.values(t,s) -- optional sort flag + if t then + local values, keys, v = { }, { }, 0 + for key, value in next, t do + if not keys[value] then + v = v + 1 + values[v] = value + keys[k] = key + end + end + if s then + sort(values) + end + return values + else + return { } + end +end |