Specialized String Pattern Using Periods?
Hello,
I was wondering what string pattern I would use in order to loop through the string and use the periods as separators. So, a good example of this would be:
str = "workspace.IdealistDeveloper"
specialized_str_pattern; -- Not sure what this would be yet.
for i in string.gmatch(str, specialized_str_pattern) do
print(i)
end
The code above would print:
workspace
IdealistDeveloper
Another test run with numbers and other characters in use:
str = "workspace.CrayMonkey1212_.Head"
specialized_str_pattern; -- Not sure what this would be yet.
for i in string.gmatch(str, specialized_str_pattern) do
print(i)
end
The code above would print:
workspace
CrayMonkey1212_
Head
Thanks in advance for any help you may provide.
Best regards,
IdealistDeveloper
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1 answer
The answer here is a fairly simple one, and there are really two ways of doing this ,dependent on what you plan on doing. If the code you have has no special characters besides the period, you can do [^%p]+ which gets non punctuation characters in a given string. However, if there are special characters , you would have to use [^%.]+, which gets non-period characters.
[^%.]+ is a special case as the period is a string pattern all to itself, being the pattern for all characters. To cancel out this characteristic, we can use the % character before it.
To shorten the code a bit, we can use the method version of the functions of the string library. Doing so is simply to shorten and make the code more simplfied, as
str:gmatch(pattern)
essentially functions the exact same as
string.gmatch(str,patter)
with that said, here is the product:
Case 1: ([^%.]+ can also be used here)
local str = "workspace.IdealistDeveloper"
local specialized_str_pattern = "[^%p]+"
for i in str:gmatch(specialized_str_pattern) do
print(i)--workspace, IdealistDeveloper
end
Case 2:
local str = "workspace.CrayMonkey1212_.Head"
local specialized_str_pattern = "[^%.]+"
for i in str:gmatch(specialized_str_pattern) do
print(i)--workspace , CrayMonkey1213_, Head
end
Another thing I would like to say is that the use of local variables is preferred for variables only used in its scope, and not a higher one, including the global scope.
This explanations was really skimming the surface here, to look at a more in depth and general explanation, go to the link below.
Reference
string patterns and "magic characters"
Hopefully this helped!
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