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Generate new API reference pages for Lune 0.8.5
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"luau": "Luau",
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"net": "Net",
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"process": "Process",
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"regex": "Regex",
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"roblox": "Roblox",
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"serde": "Serde",
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"stdio": "Stdio",
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230
pages/api-reference/regex.md
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230
pages/api-reference/regex.md
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# Regex
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Built-in library for regular expressions
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#### Example usage
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```lua
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local Regex = require("@lune/regex")
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local re = Regex.new("hello")
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if re:isMatch("hello, world!") then
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print("Matched!")
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end
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local caps = re:captures("hello, world! hello, again!")
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print(#caps) -- 2
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print(caps:get(1)) -- "hello"
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print(caps:get(2)) -- "hello"
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print(caps:get(3)) -- nil
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```
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## Constructors
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### new
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Creates a new `Regex` from a given string pattern.
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#### Errors
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This constructor throws an error if the given pattern is invalid.
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#### Parameters
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- `pattern` `string` The string pattern to use
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#### Returns
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- `Regex` The new Regex object
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---
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## Methods
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### isMatch
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Check if the given text matches the regular expression.
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This method may be slightly more efficient than calling `find` if you only need to know if the text
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matches the pattern.
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#### Parameters
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- `self` Regex
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- `text` `string` The text to search
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#### Returns
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- `boolean` Whether the text matches the pattern
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---
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### find
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Finds the first match in the given text.
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Returns `nil` if no match was found.
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#### Parameters
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- `self` Regex
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- `text` `string` The text to search
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#### Returns
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- `RegexMatch?` The match object
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---
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### captures
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Finds all matches in the given text as a `RegexCaptures` object.
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Returns `nil` if no matches are found.
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#### Parameters
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- `self` Regex
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- `text` `string` The text to search
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#### Returns
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- `RegexCaptures?` The captures object
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---
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### split
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Splits the given text using the regular expression.
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#### Parameters
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- `self` Regex
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- `text` `string` The text to split
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#### Returns
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- `{ string }` The split text
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---
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### replace
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Replaces the first match in the given text with the given replacer string.
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#### Parameters
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- `self` Regex
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- `haystack` `string` The text to search
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- `replacer` `string` The string to replace matches with
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#### Returns
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- `string` The text with the first match replaced
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---
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### replaceAll
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Replaces all matches in the given text with the given replacer string.
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#### Parameters
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- `self` Regex
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- `haystack` `string` The text to search
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- `replacer` `string` The string to replace matches with
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#### Returns
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- `string` The text with all matches replaced
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---
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# RegexCaptures
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Captures from a regular expression.
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## Methods
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### get
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Returns the match at the given index, if one exists.
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#### Parameters
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- `self` RegexCaptures
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- `index` `number` The index of the match to get
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#### Returns
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- `RegexMatch` The match, if one exists
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---
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### group
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Returns the match for the given named match group, if one exists.
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#### Parameters
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- `self` RegexCaptures
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- `group` `string` The name of the group to get
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#### Returns
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- `RegexMatch` The match, if one exists
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---
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### format
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Formats the captures using the given format string.
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#### Example usage
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```lua
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local regex = require("@lune/regex")
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local re = regex.new("(?<day>[0-9]{2})-(?<month>[0-9]{2})-(?<year>[0-9]{4})")
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local caps = re:captures("On 14-03-2010, I became a Tenneessee lamb.");
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assert(caps ~= nil, "Example pattern should match example text")
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local formatted = caps:format("year=$year, month=$month, day=$day")
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print(formatted) -- "year=2010, month=03, day=14"
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```
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#### Parameters
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- `self` RegexCaptures
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- `format` `string` The format string to use
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#### Returns
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- `string` The formatted string
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---
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# RegexMatch
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A match from a regular expression.
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Contains the following values:
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- `start` -- The start index of the match in the original string.
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- `finish` -- The end index of the match in the original string.
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- `text` -- The text that was matched.
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- `len` -- The length of the text that was matched.
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@ -16,6 +16,9 @@ stdio.write("Hello, ")
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stdio.write("World! ")
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stdio.write("All on the same line")
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stdio.ewrite("\nAnd some error text, too")
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-- Reading the entire input from stdin
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local input = stdio.readToEnd()
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```
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## Functions
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- `s` The string to write to stderr
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---
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### readToEnd
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Reads the entire input from stdin.
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#### Returns
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- The input from stdin
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---
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