com.oracle.truffle.regex.tregex.parser

Interface RegexParser

All Known Implementing Classes:

JSRegexParser, PythonRegexParser, RubyRegexParser

public interface RegexParser

Method Summary

Modifier and Type	Method and Description
AbstractRegexObject	getFlags() Returns a TruffleObject representing the compilation flags which were set for the regular expression.
AbstractRegexObject	getNamedCaptureGroups() Returns a map from the names of capture groups to their indices.
RegexAST	parse() Runs the parser and produces an AST.

Method Detail

parse

RegexAST parse()
        throws RegexSyntaxException,
               UnsupportedRegexException

Runs the parser and produces an AST.

Throws:

RegexSyntaxException - when the pattern or the flags are not well-formed

UnsupportedRegexException - when the pattern cannot be translated to an equivalent ECMAScript pattern

getFlags

AbstractRegexObject getFlags()

Returns a TruffleObject representing the compilation flags which were set for the regular expression. The returned object responds to 'READ' messages on names which correspond to the names of the flags as used in the language from which the flavor originates. This method has to be called after calling RegexParser.parse().

getNamedCaptureGroups

AbstractRegexObject getNamedCaptureGroups()

Returns a map from the names of capture groups to their indices. If the regular expression had no named capture groups, returns null. This method has to be called after calling RegexParser.parse().