Lua 模式分离问题

Question

我需要一些帮助来创建我的模式。我已经完成了基本部分，但还有一个问题。

假设我有一个字符串如下：

John: I can type in :red:colour! :white:Not in the same :red:wo:green:rd :white:though :(

我有这个代码设置来将颜色与实际值分开：

line = "John: I can type in :red:colour! :white:Not in the same :red:wo:green:rd :white:though :("

for token in string.gmatch(line, "%s?[(%S)]+[^.]?") do
   for startpos, token2, endpos in string.gmatch(token, "()(%b::)()") do
      print(token2)
      token = string.gsub(token, token2, "")
   end
   print(token)
end

将输出：

John: 
I 
can 
type 
in 
:red:
colour! 
:white:
Not 
in 
the 
same 
:red:
:green:
word 
:white:
though 
:(

当我希望它打印出来时：

John: 
I 
can 
type 
in 
:red:
colour! 
:white:
Not 
in 
the 
same 
:red:
wo
:green:
rd 
:white:
though 
:(

任何帮助将不胜感激。

Answer 1

更通用的解决方案有效：

line = "John: I can type in :red:colour! :white:Not in the same :red:wo:green:rd :white:though :("

for i in string.gmatch(line ,"%S+") do
    if (i:match(":%w+")) then
        for k,r in string.gmatch(i,"(:%w+:)(%w+[^:]*)") do
            print(k)
            print(r)
        end
    else
        print(i)
    end
end

也适用于字符串：“in the sa:yellow:me:pink:long-Words!”

Answer 2

下面的代码会给你desired output:

for token in line:gmatch( "(%S+)" ) do
  if not token:match( "(:%w-:)([^:]+)" ) then
    print(token)
  else
    for col, w in token:gmatch( "(:%w-:)([^:]+)" ) do
      print( col )
      print( w )
    end
  end
end

不过，对于如下字符串会失败：

in the sa:yellow:me:pink:long-Words!