In this particular case, I wanted something that would work specifically on strings of Clojure code rather than on forms directly. I could obviously go from the former to the latter but I had hoped to avoid the use of read-string in this case as well.
Tbh, I've also found c.t.a. to be a little intimidating in the past, though given what I know now it might be a good time to return to the project to take a look at what it has to offer some of my other projects. On Tue, Aug 18, 2015 at 9:21 AM, Aaron Cohen <aa...@assonance.org> wrote: > I'm curious why you chose to write your own parser rather than use > clojure.tools.analyzer <https://github.com/clojure/tools.analyzer>? > > On Tue, Aug 18, 2015 at 10:53 AM, W. David Jarvis <venant...@gmail.com> > wrote: > >> Hey all - >> >> I'm happy to announce the release of version 0.1.2 of Glow >> <https://github.com/venantius/glow>, the syntax highlighting library I >> open-sourced about a month ago. >> >> This release comes with a number of massive changes as to the underlying >> nature of the library. In essence, I've moved away from a >> regular-expression driven approach in favor of using a lexical parser to >> build up a parse tree from the input string, which is then transformed into >> a syntax-highlighted string. >> >> This has two advantages. First, it avoids a major problem I was having >> with the regular expression approach in the form of a StackOverflowError >> when attempting to identify long string literals within the input string. >> Second, it produces an intermediate parse tree which can be transformed >> using fairly standard Instaparse transformations to achieve arbitrary >> formatting output (handy if, for instance, one wanted to produce HTML >> output or hiccup templates). >> >> It has some disadvantage as well. It's somewhat slower, though I believe >> the code to be more maintainable and comprehensible. It also requires the >> input source code to be valid and parseable Clojure code, which you can >> think of as either an advantage or a disadvantage :P >> >> Although I had hoped initially to use Instaparse for the project's >> parser, I ended up getting considerably better performance from ANTLR / >> clj-antlr, and so that's the path I've gone down. You can take a look at >> the ANTLR Clojure grammar Glow uses here >> <https://github.com/venantius/glow/blob/master/resources/parsers/Clojure.g4> >> - I believe it to be comprehensive, and it handles a number of edge cases >> that the grammar in the main ANTLR grammar repo does not. >> >> As always, I hope you get some usage out of this, and please do files >> issues, PRs, etc (project page: https://github.com/venantius/glow) - or >> just tweet at me @venantius <https://twitter.com/venantius>. >> >> Cheers, >> >> - V >> >> -- >> You received this message because you are subscribed to the Google >> Groups "Clojure" group. >> To post to this group, send email to clojure@googlegroups.com >> Note that posts from new members are moderated - please be patient with >> your first post. >> To unsubscribe from this group, send email to >> clojure+unsubscr...@googlegroups.com >> For more options, visit this group at >> http://groups.google.com/group/clojure?hl=en >> --- >> You received this message because you are subscribed to the Google Groups >> "Clojure" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to clojure+unsubscr...@googlegroups.com. >> For more options, visit https://groups.google.com/d/optout. >> > > -- > You received this message because you are subscribed to the Google > Groups "Clojure" group. > To post to this group, send email to clojure@googlegroups.com > Note that posts from new members are moderated - please be patient with > your first post. > To unsubscribe from this group, send email to > clojure+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/clojure?hl=en > --- > You received this message because you are subscribed to a topic in the > Google Groups "Clojure" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/clojure/MDS961nvpFE/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > clojure+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > -- ============ venanti.us 203.918.2328 ============ -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups "Clojure" group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
