Syntax for RegexString flags?

[singularitti]

How to write multiline / case-insensitive / single line, etc., RegexString? Just like what's provided in Regex?

julia> r"a+.*b+.*?d$"ism
r"a+.*b+.*?d$"ims

julia> match(r"a+.*b+.*?d$"ism, "Goodbye,\nOh, angry,\nBad world\n")
RegexMatch("angry,\nBad world")

[jkrumbiegel]

I didn't implement flags, because they are not spliced into the regex string like the other things are. But I think you could just pass the flags at the moment where you convert the RegexString into the actual Regex. Aren't the flags keyword arguments to the Regex constructor?

Maybe I should think about how to add a more convenient method for flags

[singularitti]

The thing is,

1. there is no Regex(r::RegexString, flags). If I have a RegexString, I need to use Regex(rs.s, "m") to convert.
2. How do I do the multiline part when constructing RegexString using *? I have to add * "\s*" in between. I have something like:

capture(
    either(
        rs"A",
        "b",
        "c",
    );
    as = "X",
) *
rs"\h*d =\h*" *
NUMBER *
rs",  a" *
NUMBER

where either & rs"\h*d =\h*" should be connected by a line break, now I have to add a \s* manually.

[jkrumbiegel]

Yeah I could add a regex constructor with flags.

I don't understand the other question, what are you trying to do? \s is any whitespace, not specifically a newline

[singularitti]

I don't understand the other question, what are you trying to do? \s is any whitespace, not specifically a newline

That's why I am using this package 😂. I am not very familiar with regexes, so I need to build regexes with code.

[jkrumbiegel]

Maybe you can describe what you're trying to match, and I can help you what the best syntax would be?

[singularitti]

Maybe you can describe what you're trying to match, and I can help you what the best syntax would be?

Just consider any multiline matching, or ignoring the case matching.