http://blog.gmane.org/gmane.text.yaml.general hourly 1 1901-01-01T00:00+00:00 http://gmane.org/img/gmane-25t.png http://gmane.org http://comments.gmane.org/gmane.text.yaml.general/3784 <pre>|Is there a better way of passing checksums of streams? The use case is sending YAML data over a serial connection that occasionally gets errors or dropped characters. %YAML 1.2 %CRC B8C5938E --- a: foo b: bar c: baz ... %YAML 1.2 %CRC 498BBC05 --- a: alpha b: beta c: gamma ...| ------------------------------------------------------------------------------ Try New Relic Now &amp; We'll Send You this Cool Shirt New Relic is the only SaaS-based application performance monitoring service that delivers powerful full stack analytics. Optimize and monitor your browser, app, &amp; servers with just a few lines of code. Try New Relic and get this awesome Nerd Life shirt! http://p.sf.net/sfu/newrelic_d2d_apr </pre> I Heart Robotics 2013-04-29T14:30:40 http://comments.gmane.org/gmane.text.yaml.general/3781 <pre>Hi, I'm trying to load data from a large YAML file (approx. 300MB). PyYAML hangs when I try to load using this code: import yaml y = yaml.load(open("/tmp/tmp6aJfKz")) The YAML file itself is valid (it is being output by OpenCV). Can anyone suggest a way to diagnose this problem? I can provide the file, but as I've already mentioned, it's fairly large. Cheers, Michael ------------------------------------------------------------------------------ Precog is a next-generation analytics platform capable of advanced analytics on semi-structured data. The platform includes APIs for building apps and a phenomenal toolset for data science. Developers can use our toolset for easy data analysis &amp; visualization. Get a free account! http://www2.precog.com/precogplatform/slashdotnewsletter_______________________________________________ Yaml-core mailing list Yaml-core-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f&lt; at &gt;public.gmane.org https://lists.sourceforge.net/lists/listinfo/yaml-core </pre> Misha Penkov 2013-04-18T11:17:36 http://comments.gmane.org/gmane.text.yaml.general/3778 <pre>Hi, I noticed that LibYAML doesn't parse block scalar without indentation. Sample: 1 --- XXX YYY ZZZ Sample: 2 --- | XXX YYY ZZZ I expected that these samples would be parsed like this: [{"Sample": 1}, "XXX YYY ZZZ"] [{"Sample": 2}, "XXX\nYYY\nZZZ\n"] LibYAML can parse Sample 1 but not Sample 2. $ ./run-parser Sample1.yaml [1] Parsing 'Sample1.yaml': SUCCESS (11 events) $ ./run-parser Sample2.yaml [1] Parsing 'Sample2.yaml': FAILURE (10 events) PyYAML returned error. expected '&lt;document start&gt;', but found '&lt;scalar&gt;' I checked some implementations. The results are: Syck (YAML 1.0) - Ruby Sample1 ... PASS Sample2 ... PASS YAML.pm (YAML 1.0) - Perl Sample1 ... FAIL Sample2 ... PASS PyYAML (YAML 1.1) - Python / LibYAML Sample1 ... PASS Sample2 ... FAIL Psych (YAML 1.1) - Ruby / LibYAML Sample1 ... PASS Sample2 ... FAIL SnakeYAML (YAML 1.1) - Java / based on LibYAML Sample1 ... PASS Sample2 ... FAIL JS-YAML</pre> KOSEKI Kengo 2013-04-13T11:10:31 http://comments.gmane.org/gmane.text.yaml.general/3774 <pre>I attempted to submit a feature request ticket for libyaml: http://pyyaml.org/newticket?component=libyaml but it rejected my ticket, telling me it was spam. (I could go off on a whole rant about how so-called "spam filtering" makes it impossible for legitimate users to get anything done these days, but that would be off-topic.) Anyway, since I can't submit a ticket, sending the feature request to this list seemed like the next-best thing. Here is the text of the ticket I attempted to submit to libyaml: YAML 1.2 adds support for the escape sequence "\/", which was not present in YAML 1.1: http://www.yaml.org/spec/1.2/spec.html#id2776092 YAML 1.2 added this escape sequence in order to be compatible with JSON. (Since YAML's goal is to be a superset of JSON.) Although libyaml is only a YAML 1.1 parser, it would be nice to have this feature, and adding it shouldn't cause any trouble with parsing YAML 1.1. This is all that's needed: {{{ --- a/scanner.c~ +++ b/scanner.c &lt; at &gt;&lt; at &gt; -3164,6 +3164,10 &lt; at &gt;&lt; at &gt; y</pre> Patrick Pelletier 2013-03-28T00:31:24 http://comments.gmane.org/gmane.text.yaml.general/3771 <pre>I'd like to get some feedback on an idea I have to implementing a YAML parser. I was thinking that instead of instantiating the objects to native types directly, it could instantiate a delegator around the native type. e.g. instead of (in Ruby code): YAML.load('--- "string"') =&gt; "string" It would produce YAML.load('--- "string"') =&gt; Y("string") For all practical purposes Y("string") behaves just like "string". The main reason for doing this is because of immutable types. Immutable types are difficult to load with self-referencing anchors --indeed the only solution I found was to forbid it. Immutable types also might not round trip well, b/c they are often singleton. So if the same object comes in via two different tags --say a schema supports both `!foo` and `foo.org,2000:foo`, it is only possible to emit it with on or the other. There is no way to remember which it came in with. Using the delegator is also nice b/c schemas then don't need to specify the type-class a tag goes with </pre> Trans 2013-02-21T15:47:48 http://comments.gmane.org/gmane.text.yaml.general/3767 <pre>I was reading over the spec on Tags. There is an aspect of it that is confusing. To the general viewer, it is not intuitive that the following tag is not a "domain" tag: --- !tag:foo.org:org It is actually a local tag with a very domain-esque name. The correct tag is: --- !&lt;tag:foo.org:org&gt; That's a very technical distinction and I think too difficult. Would it be acceptable to just designate domain tags as any tag that contains a `:` or `/`? I realize it might not be as efficient to parse, but it would be a whole lot more comprehensible to humans. ------------------------------------------------------------------------------ Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_jan_______________________________________________ Yaml-core mailing list Yaml-core-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f&lt; at &gt;public.gmane.org https://lists.sourceforge.net/lists/listinfo/yaml-core </pre> Trans 2013-02-03T18:02:11 http://comments.gmane.org/gmane.text.yaml.general/3761 <pre>HI, I've been work with the Pysch library which is the YAML library that Ruby uses built upon libyaml. Psych provides a away to add domain tag. Below I add a tag with `foo.org` domain and `foo` name, it creates a tag from that called `tag:foo.org:foo`. It also creates a tag called `tag:foo`. (See https://github.com/tenderlove/psych/blob/master/lib/psych.rb#L304-L308) require 'yaml' YAML.add_domain_type('foo.org', 'foo'){ |*a| "frak" } ["tag:foo.org:foo", #&lt;Proc:0x00000000eec280&lt; at &gt;(irb):2&gt;] But then I can use all the following tags in the YAML to reolve to this domain tag: YAML.load('--- !&lt;tag:foo.org:foo&gt; "a"') =&gt; "frak" YAML.load('--- !&lt;tag:foo&gt; "a"') =&gt; "frak" YAML.load('--- !tag:foo.org:foo "a"') =&gt; "frak" YAML.load('--- !tag:foo "a"') =&gt; "frak" YAML.load('--- !foo.org:foo "a"') =&gt; "frak" YAML.load('--- !foo "a"') =&gt; "frak" Are all of these tags actually valid and resolvable to `tag:foo.org:foo` of `tag:foo` ? It seems like the `tag</pre> Trans 2013-02-01T19:34:44 http://comments.gmane.org/gmane.text.yaml.general/3760 <pre>Greetings, I get the following result in PyYaml: &gt;&gt;&gt; import yaml &gt;&gt;&gt; yaml.load('2012-12-24T22:45:51.000000Z') datetime.datetime(2012, 12, 24, 22, 45, 51) &gt;&gt;&gt; However I do not want this conversion to datetime object, I just want a string. Changing the input (i.e. adding quotes) is not desirable. How can I disable this implicit tag? Thanks, --dan ------------------------------------------------------------------------------ Master Visual Studio, SharePoint, SQL, ASP.NET, C# 2012, HTML5, CSS, MVC, Windows 8 Apps, JavaScript and much more. Keep your skills current with LearnDevNow - 3,200 step-by-step video tutorials by Microsoft MVPs and experts. ON SALE this month only -- learn more at: http://p.sf.net/sfu/learnnow-d2d </pre> Daniel Kahn 2013-01-24T16:15:17 http://comments.gmane.org/gmane.text.yaml.general/3759 <pre> Hi, I'm planning to use PyYAML for a configuration file. Some of the items in that configuration file are Python tuples of tuples. So, I need a convenient way to represent them. One can represent Python tuples of tuples as follows using PyYAML print yaml.load("!!python/tuple [ !!python/tuple [1, 2], !!python/tuple [3, 4]]") However, this is not convenient notation for a long sequence of items. I think it should be possible to define a custom tag, like python/tuple_of_tuples See my attempt to define this below, by mimicking how python/tuple is defined, and trying to do similar subclassing. It fails, but gives an idea what I am after, I think. A proper solution would be most welcome. I have a couple of comments on my attempted solution. 1) I'd have thought that the constructor `construct_python_tuple_of_tuples` would return the completed structure, but in fact it seems to return an empty structure as follows ([], []) However, the value that is returned is a tuple of lists of integers, so qui</pre> Faheem Mitha 2013-01-24T08:46:01 http://comments.gmane.org/gmane.text.yaml.general/3754 <pre>Hi all! First, thanks for libyaml, it's come in quite handy :-) I've written some C++ bindings for libyaml in order to simplify some tasks when using the native API directly. For instance, this API allows easily iterating over sequences: yaml::Document document("some-yaml-text"); yaml::List list = document.root(); for (std::size_t i=0; (i &lt; list.size()); ++i) { const std::string item = list[i]; // use item... } I'm planning on releasing these wrappers as an open source project, but I was wondering if it were possible to include these wrappers in the reference distribution? Also, have you ever thought about switching from Autotools to CMake? CMake much more convenient than Autotools, especially for Windows builds. I've already made the port for my own use,but if you've ever thought about switching to CMake, I can provide patches. Regards, André ------------------------------------------------------------------------------ LogMeIn Rescue: Anywhere, Anytime Remote support </pre> André Caron 2012-12-18T19:03:20 http://comments.gmane.org/gmane.text.yaml.general/3753 <pre>Hi everyone! Yakaz is pleased to release yamerl, our YAML parser, written in Erlang. This parser supports YAML 1.1 and YAML 1.2. The code, documentation and testsuite are available on GitHub: https://github.com/yakaz/yamerl Beside YAML 1.2 node types, it supports two Erlang-specific node types: o Erlang atom node type. o Erlang fun() node type. Compared to yamler[1], another parser for Erlang but based on libyaml, it has the following features and differences: o Support for stream parsing. o Support for YAML 1.2. o Erlang atom autodetection (ie. no tag is specified): - yamerl (this one, pure Erlang) tries to represent plain scalar as Erlang atom only - yamler (libyaml-based) tries to represent both plain and single-quoted scalars. This looks more like Erlang syntax (where atoms can be unquoted or single-quoted) but breaks YAML specification, if I understand correctly. Also, still compared to yamler, yamerl has the c</pre> Jean-Sébastien Pédron 2012-12-17T15:18:31 http://comments.gmane.org/gmane.text.yaml.general/3748 <pre>I was thinking it would be a good idea to have an "official" yaml command line tool. The tool would make it possible for shell scripts to work with yaml documents. It should be able to do things like read a value give a "ypath" (whatever that is exactly), set a value, handle possible conversions (e.g. json&lt;-&gt;yaml), etc. I have a ruby script that I created that is basically like this called `yc` (https://github.com/rubyworks/yc). But I don't think it should be official though (at the very least b/c its not really complete). For an official tool it would probably be best if it is written in C (or perhaps it's okay to use Node.js Javascript since it is becoming so ubiquitous?). trans. ------------------------------------------------------------------------------ LogMeIn Rescue: Anywhere, Anytime Remote support for IT. Free Trial Remotely access PCs and mobile devices and provide instant support Improve your efficiency, and focus on delivering more value-add services Discover what IT Professi</pre> Trans 2012-12-07T15:52:24 http://comments.gmane.org/gmane.text.yaml.general/3745 <pre>Hello, We (Pyrseas project) are trying to deal with text returned by PostgreSQL representing either SQL views or functions (stored procedures). Until now, the text was retrieved from the database into a Python string and then passed to yaml.dump. The output usually ended up as quoted or unquoted strings, e.g., # function source: SELECT $1 + $1; # view definition: SELECT DISTINCT product.product_id, product.product_code, product.product_description FROM (warehouse.inventory JOIN product.product USING (product_id)); # or definition: " SELECT DISTINCT product.product_id, product.product_code, product.product_description\n\ \ FROM warehouse.inventory\n JOIN product.product USING (product_id);" The first view was fetched in "raw" format, i.e., as a single line, and apparently the line break before the "FROM" is just a fortunate coincidence. The second view was requested "prettified" so the actual value in Python looks like: def = """SELECT DISTINCT product.product_id, product.pr</pre> Joe Abbate 2012-11-28T22:26:04 http://comments.gmane.org/gmane.text.yaml.general/3742 <pre>Is the google-group mirror still broken? Did any one else receive this post? I have replicated below: I was thinking that it would be a very a good idea to create an offical YAML Implementation Guide, which could serve as a set of guidelines for implementation developers. I am not qualified to write such a document myself, so I can probably only help with surface level details, e.g. proof reading, etc. But I think it is important. So I want to try to find a way to encourage those who are qualified to work on it. Of all the people I know I imagine Oren and Kirill Simonov (the creator of libYAML) might be the best qualified. What can I do to help this happen? Also, let me explain how I came to this quest. I use YAML almost exclusively via Ruby. And Ruby's implementation, Psych, which is build on top of libYAML, lacks what I consider an important feature for any "LAMP" language implementation. Namely, it loads arbitrary types without error but provides no way to access the type tag. e.g. YAML.load &lt;&lt;-HER</pre> Trans 2012-11-26T00:07:26 http://comments.gmane.org/gmane.text.yaml.general/3741 <pre>I was thinking that it would be a very a good idea to create an offical YAML Implementation Guide, which could serve as a set of guidelines for implementation developers. I am not qualified to write such a document myself, so I can probably only help with surface level details, e.g. proof reading, etc. But I think it is important. So I want to try to find a way to encourage those who are qualified to work on it. Of all the people I know I imagine Oren and Kirill Simonov (the creator of libYAML) might be the best qualified. What can I do to help this happen? Also, let me explain how I came to this quest. I use YAML almost exclusively via Ruby. And Ruby's implementation, Psych, which is build on top of libYAML, lacks what I consider an important feature for any "LAMP" language implementation. Namely, it loads arbitrary types without error but provides no way to access the type tag. e.g. YAML.load &lt;&lt;-HERE --- !foo a: 1 b: 2 HERE This returns a regular old Hash `{'a'=&gt;1, '</pre> Trans 2012-11-23T17:51:12 http://comments.gmane.org/gmane.text.yaml.general/3739 <pre>Hi, The regexp for base 10 floating point values listed on this page: http://yaml.org/type/float.html Says: [-+]?([0-9][0-9_]*)?\.[0-9.]*([eE][-+][0-9]+)? (base 10) This regexp allows any number of dots in a row to be a valid base 10 float (for example "." or ".." or "...."). Shouldn't this regexp at least be: [-+]?([0-9][0-9_]*)?\.[0-9]*([eE][-+][0-9]+)? (base 10) Or am I missing something? (I realize the above regexp would match "." as a valid float, but what are you going to do? ;-) ). Thanks for your time. </pre> Aaron Patterson 2012-11-17T02:58:40 http://comments.gmane.org/gmane.text.yaml.general/3738 <pre>Hi YAML users, I'd like to share a small general-purpose Python function that I've written a couple of months ago. It can be used to perform custom transformations across a YAML document, such as - reversing all sequences - capitalizing all strings - changing mappings with multiple entries into sequences of one-entry mappings while preserving sharing (aliases). The first variant of the function is easier to use but does not support cyclic structures; the second variant does support them, but is a bit harder to understand. http://code.activestate.com/recipes/578117-sharing-aware-tree-transformations/ http://code.activestate.com/recipes/578118-cycle-aware-tree-transformations/ Cheers, Sander Evers ------------------------------------------------------------------------------ LogMeIn Central: Instant, anywhere, Remote PC access and management. Stay in control, update software, and manage PCs from one command center Diagnose problems and improve visibility into emerging IT issues Automate, monitor and</pre> Sander Evers 2012-11-06T14:42:00 http://comments.gmane.org/gmane.text.yaml.general/3736 <pre>Hi, Daniel here, I've been following this mailing list for quite some time, I'm currently toying with a YAML parser for Fantom (a rather obscure language), and I'm wondering how far is YAML2 specification? Should I try to make such a parser if YAML2 is coming soon? From what I've seen YAML2 seems, at least in theory, superior to current specs. What would be the best course of action? Make a 1.2 parser and then add 2.0 features? Truly curious, Daniel Fath ------------------------------------------------------------------------------ LogMeIn Central: Instant, anywhere, Remote PC access and management. Stay in control, update software, and manage PCs from one command center Diagnose problems and improve visibility into emerging IT issues Automate, monitor and manage. Do more in less time with Central http://p.sf.net/sfu/logmein12331_d2d_______________________________________________ Yaml-core mailing list Yaml-core-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f&lt; at &gt;public.gmane.org https://lists.sourceforge.net/lists/listinfo/y</pre> Daniel Fath 2012-11-05T08:51:14 http://comments.gmane.org/gmane.text.yaml.general/3734 <pre>Greetings, I had an idea today. It probably would apply to YAML2 more than YAML. I just wanted to throw it out there, and see if people can shoot it down. The idea is to turn aliases into plain scalars, and the normal convention would be to load them as references to anchors. So things work as before under normal dump/load. Thus * is no longer a special syntax char and can start any plain scalar. This might be extended as the normal way to do other kinds of fancy impliciting like file includes: content: *include file.yaml Whether it gets used in new ways or not, I just think that *foo can be parsed as an implicit scalar. Can people see holes in that logic? Ingy ------------------------------------------------------------------------------ LogMeIn Central: Instant, anywhere, Remote PC access and management. Stay in control, update software, and manage PCs from one command center Diagnose problems and improve visibility into emerging IT issues Automate, monitor and manage. Do more in less time with Cent</pre> Ingy dot Net 2012-11-05T05:37:17 http://comments.gmane.org/gmane.text.yaml.general/3730 <pre>Hi list, I am using the PyYAML implementation for yaml (They don't have their own mailing list, so I'm bringing this question here. I hope some folks are familiar with it and can assist. I have the following yaml doc: --- instance: id: i-1234567 saltId: APPSRV-X grains: roles: - webserver - php environment: X I then try to dump it from one file to another, there are multiple yaml docs in this file, and I am picking one doc and copying it to another file basically. Here is the code I used to do it: https://gist.github.com/3941410 This is the resulting output: id: APPSRV-X environment: X roles: [webserver, php] For some reason it doesn't maintain it's structure, and I cannot figure out how to keep it. I tried changing the line with yaml.dump(configDict['instance']['grains'], TEST_CONFIG_FILE) to yaml.dump(configDict['instance']['id'], TEST_CONFIG_FILE) and the output get's even stranger: id: APPSRV-X i-1234567 ... any help is ap</pre> Zippy Zeppoli 2012-10-23T20:45:06 http://comments.gmane.org/gmane.text.yaml.general/3725 <pre>Hi, I'm trying to submit comment on a ticket or submit a ticket at http://pyyaml.org/ and getting this: ============= Oops… Trac detected an internal error: DatabaseError: database disk image is malformed There was an internal error in Trac. It is recommended that you inform your local Trac administrator and give him all the information he needs to reproduce the issue. To that end, you could a ticket. The action that triggered the error was: POST: /ticket/208 TracGuide — The Trac User and Administration Guide ============= Best regards, </pre> Mateusz Loskot 2012-10-20T00:17:24 Search the mailing list at Gmane query http://search.gmane.org/?group=$group=gmane.text.yaml.general