Even if this flag were restricted to constructors instead of both constructors and literals, it could be worthwhile.
On Mon, Jun 3, 2019, 23:19 Isiah Meadows <[email protected]> wrote: > Let me clarify that previous message: I mean "newline restriction" in > the sense that newlines are not permitted in regexp literals. A `/x` > flag would make removing it practically required for it to have any > utility. > > ----- > > Isiah Meadows > [email protected] > www.isiahmeadows.com > > On Mon, Jun 3, 2019 at 11:14 PM Isiah Meadows <[email protected]> > wrote: > > > > I would personally love this (as well as interpolations in regexp > > literals). I do have a concern about whether removing the newline > > restriction creates ambiguities with division, but I suspect this is > > *not* the case. > > > > ----- > > > > Isiah Meadows > > [email protected] > > www.isiahmeadows.com > > > > On Mon, Jun 3, 2019 at 10:03 PM Jacob Pratt <[email protected]> > wrote: > > > > > > Has there been any previous discussion of adding the `x` flag to JS? > It exists in other languages, and can make relatively complicated regex > _much_ easier to read. It also allows for comments, which are incredibly > helpful when trying to understand some regexes. > > > > > > For prior art, XRegExp has this flag (though I've no idea to figure > out how frequently it's used), as do a few other languages. > > > > > > Quick overview: https://www.regular-expressions.info/freespacing.html > > > > > > Language references: > > > Python: https://docs.python.org/3/library/re.html#re.X > > > Rust: https://docs.rs/regex/1.1.6/regex/ > > > XRegExp: http://xregexp.com/xregexp/flags/#extended > > > .NET: > https://docs.microsoft.com/en-us/dotnet/standard/base-types/regular-expression-language-quick-reference#regular-expression-options > > > > > > Jacob Pratt > > > _______________________________________________ > > > es-discuss mailing list > > > [email protected] > > > https://mail.mozilla.org/listinfo/es-discuss >
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