js_grammar.pl -- JavaScript grammar

This file provides a tokenizer for JavaScript (EcmaScript). This code supports the quasi quotation syntax javascript, defined in library(http/js_write).

See also

- http://tomcopeland.blogs.com/EcmaScript.html is used for the high-level syntax.

- http://www.ecma-international.org/ecma-262/5.1/ is used for implementing the tokenization code.

 js_token(-TokenType)//

Matches and classifies the next JavaScript token.

 token(-Type) is semidet[private]

Get the next token from the input. Fails when encountering the end of the input.

Errors

- syntax_error(Culprit)

 comment// is semidet[private]

 string_literal// is semidet[private]

Matches a string literal

 numeric_literal//[private]

Matches JavaScript notion of a numeric constant

 regex_literal// is semidet[private]

Matches regex expression /.../flags

 q_codes//[private]

Shortest list of quoted characters.