parslet | See the Hacking page | Parser library

I am attempting to follow a graphql rails tutorial and I'm running into some issues. I'm very new to rails, and generally don't have this many issues. From the research I've done it may be an issue with Ruby 2.6+ however, none of the other solutions have worked for me.

• Ruby Version: 2.6.5
• Rails Version: 6.0.1
• OS: Manjaro 5.3.15

Stacktrace:

I am writing a SCIM 2.0 filter parser using Parslet. When I try to parse the following query, I end up with a SystemStackError.

'title pr or userType eq "Intern"'

I have converted the ABNF notation from https://tools.ietf.org/html/rfc7644#page-21 into a Parslet parser shown in the example code.

I'm trying to install Jekyll on Leopard but can't get it working. The most progress I've made is being able to run gem install jekyll in Terminal, but then I get the error make failed, exit code 2.

• I have tigerbrew installed (since brew is incompatible with leopard now)
• I have rvm installed (installed from source due to constant certificate/ssl errors)
• I have installed Ruby version 2.3.8p459 from source
• I have Xcode 3.1.3 installed

I can't install ruby from rbenv or rvm due to cert/ssl errors, that's why I've installed it from source. I can install via brew install ruby, but get the same results.

I've looked at many other posts regarding the make failed error which tends to be related to multiple Ruby versions. None of the answers on these pages worked as I've installed everything from source (ruby has never been installed by brew, rbenv or rvm). I have tried installing ruby with all of the above but got the same error. Each time I've tested installing Ruby either from source or from tigerbrew/homebrew I've clean installed a new system of Leopard + Xcode etc. I've also tried this on multiple machines.

I've just updated rubygems to version 3.0.2, which fixed some certificate errors when installing gems but hasn't fixed the problem.

Is there anything else I can do to get this working??

Below is the output from Terminal when I run gem install jekyll.

I'm trying to parse an existing language in ANTLR that's currently being parsed using the Ruby library Parslet.

Here is a stripped down version of my grammar:

I have the following data from a rich text format (RTF) file:

{\rtf1\ansi\deff3\adeflang1025\n{\fonttbl{\f0\froman\fprq2\fcharset0 Times New Roman;}{\f1\froman\fprq2\fcharset2 Symbol;}{\f2\fswiss\fprq2\fcharset0 Arial;}{\f3\froman\fprq2\fcharset128 Times New Roman;}{\f4\fswiss\fprq2\fcharset128 Arial;}{\f5\fnil\fprq2\fcharset128 Droid Sans Fallback;}{\f6\fnil\fprq2\fcharset128 DejaVu Sans;}{\f7\fswiss\fprq0\fcharset128 DejaVu Sans;}}\n{\colortbl;\red0\green0\blue0;\red128\green128\blue128;}\n{\stylesheet{\s0\snext0\nowidctlpar{\*\hyphen2\hyphlead2\hyphtrail2\hyphmax0}\cf0\kerning1\hich\af5\langfe2052\dbch\af6\afs24\lang1081\loch\f3\fs24\lang1033 Default;}\n{\s15\sbasedon0\snext16\sb240\sa120\keepn\hich\af5\dbch\af6\afs28\loch\f4\fs28 Heading;}\n{\s16\sbasedon0\snext16\sb0\sa120 Text body;}\n{\s17\sbasedon16\snext17\sb0\sa120\dbch\af7 List;}\n{\s18\sbasedon0\snext18\sb120\sa120\noline\i\dbch\af7\afs24\ai\fs24 Caption;}\n{\s19\sbasedon0\snext19\noline\dbch\af7 Index;}\n}{\info{\creatim\yr2018\mo7\dy15\hr11\min52}{\revtim\yr0\mo0\dy0\hr0\min0}{\printim\yr0\mo0\dy0\hr0\min0}{\comment OpenOffice}{\vern4140}}\deftab709\n\n{\*\pgdsctbl\n{\pgdsc0\pgdscuse195\pgwsxn12240\pghsxn15840\marglsxn1134\margrsxn1134\margtsxn1134\margbsxn1134\pgdscnxt0 Default;}}\n\formshade\paperh15840\paperw12240\margl1134\margr1134\margt1134\margb1134\sectd\sbknone\sectunlocked1\pgndec\pgwsxn12240\pghsxn15840\marglsxn1134\margrsxn1134\margtsxn1134\margbsxn1134\ftnbj\ftnstart1\ftnrstcont\ftnnar\aenddoc\aftnrstcont\aftnstart1\aftnnrlc\n\pgndec\pard\plain \s0\nowidctlpar{\*\hyphen2\hyphlead2\hyphtrail2\hyphmax0}\cf0\kerning1\hich\af5\langfe2052\dbch\af6\afs24\lang1081\loch\f3\fs24\lang1033{\rtlch \ltrch\loch\nI like to read.}\n\par }

Following the example from "Text Processing with Ruby" by Rob Miller, I have the following Parslet Parser:

I have a Flexlm/Flexnet licenses service and I want parse the outputs of this service. All output are structured block of multi-lines. My first step is to parse the output of lmutil lmstat -c -a to have the usage of licences and increments.

I try to use Ruby and Parslet. All lines are individually well parsed. I have a rule to parse a repetition of a specific type of line, but I can't parse a structured block of lines.

I'm looking for the law (best word in this context than 'rule') that define where to put the 'newline' statement in a multi-line structured block.

I working with Debian Jessie (stable/x86_64) and Ruby 2.1.5p273 and Parslet 1.6.1-1.

I've contacted the author, he is sorry but he haven't enough time to help me. The webpages seen are :

• URL: www.viget.com/articles/write-you-a-parser-for-fun-and-win
• URL: jmettraux.wordpress.com/2011/05/11/parslet-and-json/
• Recursive Descent Parsers (Calle) - Video
• Wicked Good Ruby 2013 - Writing DSL's with Parslet by Jason Garber - Video
• Proper Ruby style for multi-line method chaining containing blocks - StackOverFlow
• Ruby parslet: parsing multiple lines - StackOverFlow
• How do I handle C-style comments in Ruby using Parslet? - StackOverFlow

I passed many hours to try to understand how to construct the rules of a multi-line structured block. Below you have my source code with all test strings and the output.

My approach is to build:

1. the elementary rule to parse a fragment of line
2. the rule to parse a complete line without the 'newline' statement;
3. a rule to parse the repetition of an information of the same type, like the line for the used tokens;
4. the rule to parse a group of data : header + repetition of lines;
5. the rule to parse a repetition of groups.

I'm not sure of the point 3, and I'm completely lost with '4' and '5'.

Thanks in advance for any help. [ 07/14/2017 : some parts of code was removed ]