[Webkit-unassigned] [Bug 63340] New: Lexer error messages are currently appalling

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=63340

           Summary: Lexer error messages are currently appalling
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: oliver at apple.com


Current lexer error messages basically produce a dump of the last sequence of characters seen by the lexer, without any indication of why those characters are wrong, it would be nice to get errors along the lines of

"blah blah blah
=>
"Unterminated string literal"

"use strict"; "\03"
=>
"Octal escapes are forbidden in strict mode"

etc

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