Lua 字符串操作

发布于 2025-01-11 02:32:33 字数 606 浏览 0 评论 0原文

这是我的代码

local function char(...) return string.char(...) end

local function addtok(text,token,C)
   text = text or ""
   local string = ""
   local count = 0
   for word in text:gmatch(("[^%s]+"):format(char(C))) do
      string = string..char(C)..word
   end
   string = string..char(C)..token
   print(string)
end

函数

addtok("Devotion Aura;Charger;Righteous Fury","Seal of Wisdom",59)

“;奉献光环;充电器;正义之怒;智慧印记”，

但我想要的是

“奉献光环;充电器;正义之怒;智慧印记”

可能的修复： print(string.sub (string, 2))

有更好的解决方案吗？

原文

This is my code

local function char(...) return string.char(...) end

local function addtok(text,token,C)
   text = text or ""
   local string = ""
   local count = 0
   for word in text:gmatch(("[^%s]+"):format(char(C))) do
      string = string..char(C)..word
   end
   string = string..char(C)..token
   print(string)
end

The function

addtok("Devotion Aura;Charger;Righteous Fury","Seal of Wisdom",59)

returns

";Devotion Aura;Charger;Righteous Fury;Seal of Wisdom"

but what I want is

"Devotion Aura;Charger;Righteous Fury;Seal of Wisdom"

possible fix: print(string.sub(string, 2))

any better solution?

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℡Ms空城旧梦 2025-01-18 02:32:33

local function addtok(text,token,C) 
   local string = (text or "").. string.char(C) .. token   
   print(string)
end

addtok("Devotion Aura;Charger;Righteous Fury","Seal of Wisdom",59)

local function addtok(text,token,C) 
   local string = (text or "").. string.char(C) .. token   
   print(string)
end

addtok("Devotion Aura;Charger;Righteous Fury","Seal of Wisdom",59)

回复收藏 0 原文

吹梦到西洲 2025-01-18 02:32:33

string = string..char(C)..word 行将在前面添加第一个分号。这就是在循环内附加的问题 - 如果您不需要尾随或前导分隔符，则必须对最后一个或第一个元素进行例外处理。但在这种情况下，您应该使用 table.concat，这既是为了性能（避免不必要的字符串复制）又为了通过分隔符连接的方便性：

local function char(...) return string.char(...) end

local function addtok(text,token,C)
   text = text or ""
   local words = {}
   local count = 0
   for word in text:gmatch(("[^%s]+"):format(char(C))) do
      table.insert(words, word)
   end
   local string = table.concat(words, char(C))..char(C)..token
   print(string)
end

The line string = string..char(C)..word will prepend the first semicolon. That's the issue with appending within a loop - you have to make an exception for either the last or the first element if you don't want a trailing or leading delimiter. In this case however, you should be using table.concat, both for performance (avoiding unnecessary string copies) and convenience of joining by delimiter:

local function char(...) return string.char(...) end

local function addtok(text,token,C)
   text = text or ""
   local words = {}
   local count = 0
   for word in text:gmatch(("[^%s]+"):format(char(C))) do
      table.insert(words, word)
   end
   local string = table.concat(words, char(C))..char(C)..token
   print(string)
end

回复收藏 0 原文

~没有更多了~