add support for -%>

[bolasblack]

No description provided.

[weavejester]

I think there's a better way of doing this. We can change the regular expression instead:

(def delimiters ["<%" "%>"])
(def trimmer    "-")
 
(def parser-regex
  (let [[s e] delimiters, t trimmer]
    (re-pattern
     (str "(?s)\\A"
          "(?:" "(.*?)"
          "(?:" "\\s*" s t "|" s ")"
          "(.*?)"
          "(?:" t e "\\s*" "|" e ")"
          ")?"
          "(.*)\\z"))))

So we match \s*<%- or <% at the beginning, and -%>\s* or %> at the end. This also allows for trimming whitespace at the beginning.

[bolasblack]

Good idea, but we need to decide how to deal with <%=- %>, ignore - or print result and trimming whitespace?

[weavejester]

I don't think ERB supports <%=-, or rather, it evaluates to treating the - as a subtraction. <%-= doesn't work in ERB either, though I don't see why it shouldn't. In Comb we might as well support it, and the regex above should do that fine.