<div class="gmail_quote">2009/11/9 Ivanyi Peter <<a href="mailto:pivanyi@freemail.hu">pivanyi@freemail.hu</a>> <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> <div class="im"> > But I recently made a simple quick-and-dirty text parser tool: > <a href="http://planet.plt-scheme.org/package-source/orseau/lazy-doc.plt" target="_blank">http://planet.plt-scheme.org/package-source/orseau/lazy-doc.plt</a> > /1/6/planet-docs/manual/simple-parser.html </div>Thanks, this seems to work. Now I do not understand one thing. Maybe this is not Scheme related, but from the following code I would expect: "\nsomething\n{#[#aa,#bb#]\n}\n" but I get: "\nsomething\n{\n#[\n#aa,#bb\n#]\n}\n" I thought the start-keyword would match zero or many new-line AND one or many spaces. What do I do wrong? </blockquote><div> This is my bad. For some reason, I had chosen to cut the text into lines (so that reading files line by line would have the same behavior as reading it by chunks) and to separate the end-of-lines from the rest of the text, so in fact: " something { [ aa, bb ] } " is turned into : '("\n" "something" "\n" "{" "\n" "[" "\n" " aa, bb" "\n" "]" "\n" "}" "\n") which is parsed chunk by chunk. This also addresses a speed issue, because with big parsers, multiple regexps in parallel can be quite greedy, especially on long text files if the text is not split into lines. I should at least document that. Let me know if this makes things difficult for you, I'll try to find a workaround. Though for my own purposes, this behavior has not been much of a problem. Laurent </div> <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> Thanks, Peter Ivanyi ---------------------------------------------------------- #lang scheme (require (planet orseau/lazy-doc:1:6/simple-parser)) (define start-keyword "\n* +") (let ([block-parser (new-parser #:phase 'block-keywords)]) (add-items block-parser ('block-keywords (start-keyword "#")) ) (parse-text block-parser " something { [ aa, bb ] } ") ) </blockquote></div>