diff options
Diffstat (limited to 'lualibs-util-tab.lua')
| -rw-r--r-- | lualibs-util-tab.lua | 28 |
1 files changed, 15 insertions, 13 deletions
diff --git a/lualibs-util-tab.lua b/lualibs-util-tab.lua index ae44269..f9e9b31 100644 --- a/lualibs-util-tab.lua +++ b/lualibs-util-tab.lua @@ -21,27 +21,29 @@ local utftoeight = utf.toeight local splitter = lpeg.tsplitat(".") -function tables.definetable(target,nofirst,nolast) -- defines undefined tables - local composed, shortcut, t = nil, nil, { } +function utilities.tables.definetable(target,nofirst,nolast) -- defines undefined tables + local composed, t = nil, { } local snippets = lpegmatch(splitter,target) for i=1,#snippets - (nolast and 1 or 0) do local name = snippets[i] if composed then - composed = shortcut .. "." .. name - shortcut = shortcut .. "_" .. name - t[#t+1] = formatters["local %s = %s if not %s then %s = { } %s = %s end"](shortcut,composed,shortcut,shortcut,composed,shortcut) + composed = composed .. "." .. name + t[#t+1] = formatters["if not %s then %s = { } end"](composed,composed) else composed = name - shortcut = name if not nofirst then t[#t+1] = formatters["%s = %s or { }"](composed,composed) end end end - if nolast then - composed = shortcut .. "." .. snippets[#snippets] + if composed then + if nolast then + composed = composed .. "." .. snippets[#snippets] + end + return concat(t,"\n"), composed -- could be shortcut + else + return "", target end - return concat(t,"\n"), composed end -- local t = tables.definedtable("a","b","c","d") @@ -73,7 +75,7 @@ end function tables.migratetable(target,v,root) local t = root or _G - local names = string.split(target,".") + local names = lpegmatch(splitter,target) for i=1,#names-1 do local name = names[i] t[name] = t[name] or { } @@ -316,7 +318,7 @@ function table.fastserialize(t,prefix) -- not sorted -- only number and string indices (currently) - local r = { prefix or "return" } + local r = { type(prefix) == "string" and prefix or "return" } local m = 1 local function fastserialize(t,outer) -- no mixes @@ -376,7 +378,6 @@ function table.fastserialize(t,prefix) end return r end - return concat(fastserialize(t,true)) end @@ -494,7 +495,8 @@ end -- The next version is somewhat faster, although in practice one will seldom -- serialize a lot using this one. Often the above variants are more efficient. --- If we would really need this a lot, we could hash q keys. +-- If we would really need this a lot, we could hash q keys, or just not used +-- indented code. -- char-def.lua : 0.53 -> 0.38 -- husayni.tma : 0.28 -> 0.19 |