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For the latest stable version, please use Emilua API 0.10! |
regex
Types
regex
Functions
new(options: table) → regex
Constructor.
optionspattern: string-
The pattern to match against.
grammar-
The grammar.
Currently it has support for:
-
"basic". -
"extended". -
"ecma".
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ignore_case: boolean = false-
Whether to ignore casing.
nosubs: boolean = false-
When performing matches, all marked sub-expressions are treated as non-marking sub-expressions.
optimize: boolean = false-
Whether to optimize the regex.
Functions
match(re: regex, str: string|byte_span) → matches…
Try to match the pattern against the whole string str. If successful, then
returns the captures from the pattern; otherwise it returns nil. If re
specifies no captures, then the whole match is returned.
search(re: regex, str: string|byte_span) → table
Scan through str looking for the first location where the regular expression
pattern produces a match, and return a corresponding match object. The returned
table contains the following string keys:
"empty": boolean-
Whether match was unsuccessful.
The table also contains numeric keys from 0 to the number of specified capture
groups. 0 will represent the whole match and subsequent indexes are present if
a corresponding match for that capturing group was found. Each element will be a
table with the following members:
"start": integer-
The index for the first character that matched.
"end_": integer`-
The index for the last character that matched.