syn | Parser for Rust source code | Parser library

 by   dtolnay Rust Version: 2.0.19 License: Apache-2.0

kandi X-RAY | syn Summary

kandi X-RAY | syn Summary

syn is a Rust library typically used in Utilities, Parser applications. syn has no bugs, it has no vulnerabilities, it has a Permissive License and it has medium support. You can download it from GitHub.

The [lazy-static] example directory shows the implementation of a functionlike!(...) procedural macro in which the input tokens are parsed using Syn’s parsing API. The example reimplements the popular lazy_static crate from crates.io as a procedural macro. The implementation shows how to trigger custom warnings and error messages on the macro input.
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            kandi-support Support

              syn has a medium active ecosystem.
              It has 2283 star(s) with 274 fork(s). There are 23 watchers for this library.
              There were 4 major release(s) in the last 12 months.
              There are 32 open issues and 783 have been closed. On average issues are closed in 26 days. There are 2 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of syn is 2.0.19

            kandi-Quality Quality

              syn has no bugs reported.

            kandi-Security Security

              syn has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

            kandi-License License

              syn is licensed under the Apache-2.0 License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              syn releases are available to install and integrate.
              Installation instructions are not available. Examples and code snippets are available.

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            syn Key Features

            No Key Features are available at this moment for syn.

            syn Examples and Code Snippets

            No Code Snippets are available at this moment for syn.

            Community Discussions

            QUESTION

            Why does this regular expression not work in Vim syntax highlighting?
            Asked 2021-Jun-04 at 19:06

            I am attempting to create my own Python syntax highlighting file for Vim.

            I'm trying to highlight the class inheritance object and the regex I've created works in various regex testers, but doesn;t work in Vim. I've read that Vim's regex is close to Perl style so that is what I've been using.

            I'm trying to highlight the word 'Subscribers' in the following text:

            ...

            ANSWER

            Answered 2021-Jun-03 at 21:00

            Online regular expression playgrounds don't support Vim's syntax so using them is pointless, here.

            See vimregex.com for an overview, :help usr_27 for a gentle tutorial, :help pattern for the definitive reference, and :help perl-patterns for the differences between the Vim syntax and the Perl syntax.

            Source https://stackoverflow.com/questions/67828493

            QUESTION

            Mysql get spefic word before/after
            Asked 2021-Jun-03 at 11:37

            firstly I want to apologize to Stack overflow, I Know that, I should not ask this question on Stack

            I have MySQL data like this

            ...

            ANSWER

            Answered 2021-Jun-03 at 11:37
             select case when instr(ip,':')>0 then substr(ip,1,instr(ip,':')-1) else ip end as ip from(select SUBSTRING(col_name,INSTR(col_name,'SYN')+6,INSTR(col_name,'->')-(INSTR(col_name,'SYN')+6)) as ip from table_name) as t;
            

            Source https://stackoverflow.com/questions/67818851

            QUESTION

            MQTT Artemis broker, frequent reconnections when the device is on IPV6
            Asked 2021-May-26 at 08:36

            I am using the ActiveMQ Artemis Broker and publishing to it through a client application.

            Behavior observed:

            • When my client is IPV4 a TLS handshake is established and data is published as expected, no problems.
            • When my client is IPV6 , I see frequent re-connections being established between the client and the server(broker) and no data is being published.

            Details:

            • When using IPV6 the client does a 3 way handshake and attempts to send data. It also receives a Server Hello and sends application data.
            • But the connection terminates and again reconnects. This loop keeps occurring.
            • The client library, network infrastructure, and broker are all completely the same when using IPv4 and IPv6.

            The client logs say:

            ...

            ANSWER

            Answered 2021-May-26 at 08:36

            The issue was caused due to a LB setting which had a default connection time out of 30 secs , lesser than the connection timeout set by the client.

            Source https://stackoverflow.com/questions/67359764

            QUESTION

            Terraform: Cloudwatch Canary Synthetics, How to create metric alarm
            Asked 2021-May-25 at 06:02

            I try to create an alarm for my canary resource. I can't find a solution to reference my canary in my resource for aws_cloudwatch_metric_alarm. In the console there is a parameter CanaryName

            I can create my canary with:

            ...

            ANSWER

            Answered 2021-May-25 at 06:02
              dimensions = {
                CanaryName = "NAME_OF_CANARY"
              }
            

            Source https://stackoverflow.com/questions/67604444

            QUESTION

            MongoDB $lookup aggregation resulting in nested array
            Asked 2021-May-24 at 11:55

            I have two collections that are in many-to-one relationship (multiple hosts' http services often serve the 'same' e.g. DNS-level load balancing). I'm trying to build a query returning the relevant documents (from two collections) merged into one.

            hosts collection:

            ...

            ANSWER

            Answered 2021-May-24 at 11:55
            • $unwind deconstruct services array
            • $lookup with https and set as as services.http
            • $group by _id and reconstruct services array and set other required fields

            Source https://stackoverflow.com/questions/67671028

            QUESTION

            How to make a TCP SYN request with trace route
            Asked 2021-May-17 at 12:06

            I want to make TCP SYN requests using traceroute and discovered the flag -T. However, I don't know which values I have to use in order to make such requests.

            ...

            ANSWER

            Answered 2021-May-17 at 12:06

            Use -T option if you want to use TCP SYN for probing the remote address as shown in example below:

            Source https://stackoverflow.com/questions/67255963

            QUESTION

            How does syn::parse::ParseBuffer::peek() accept a type as an argument?
            Asked 2021-May-16 at 11:02

            How are we able to pass type as an argument instead of turbofish to syn::parse::ParseBuffer::peek?

            Methods are generally called like input.parse::(). We pass types as generics but peek expects them as input.peek(Token![;]).

            I wanted to know because if I create a type alias to Token![;] like type TokenAlias = Token![;] and use it like input.peek(TokenAlias), I get the error:

            ...

            ANSWER

            Answered 2021-May-16 at 11:00

            The peek function accepts a token value, not a type.

            The reason it accepts Token[;] is that it expands to an identifier that is the name of a type, but also of a global function hidden from docs! Your type alias refers to the type, and attempting to construct a value using constructor syntax for unit-like structs makes the compiler complain that such syntax doesn't work for type aliases. (And even if it did, Semi is not a unit-like struct, so it wouldn't work for that type in particular.)

            Source https://stackoverflow.com/questions/67555425

            QUESTION

            How can I write a command to select a data from a database table when it matches the input provided on my textBox1.text?
            Asked 2021-May-09 at 17:29

            I am working on a windows app that will display the Synonym to a TextBox2 if the input on TextBox1 matches any of the data in the Word column of my database table below. My code below only output Joyful when I enter any of the words in Word column Please how can I correct & achieve that?

            See my table and code below:

            ...

            ANSWER

            Answered 2021-May-09 at 15:50

            How about using parameterized query as below?

            Source https://stackoverflow.com/questions/67459187

            QUESTION

            Extracting rows containing required strings from soup object
            Asked 2021-May-08 at 07:33

            I have soup. I want to extract all rows containing these three required information.

            Sentinel-3

            S3A_OL_2_LFR____20210429T160749_20210429T161049_20210429T180517_0180_071_154_2340_LN1_O_NR_002.SEN3 SAFE

            How can I do it?

            ...

            ANSWER

            Answered 2021-May-07 at 23:54

            If I understand you right, you want to get all 3 information from each (html contains your XML snippet):

            Source https://stackoverflow.com/questions/67442717

            QUESTION

            Generating new values by combining two lists in Python
            Asked 2021-May-06 at 21:21

            I have a series of phrases that I tokenized. I then found the synonyms of each word and saved them in a dictionary with the word (i.e. token) as the key and a list of synonyms as the value. My goal is to generate new phrases by replacing each word with its synonyms and create new phrases.

            For example, we have a phrase that has 3 tokens. The first token (limited) has 18 synonyms, the second token (social) has 4 synonyms, and the last token (support) has 16 synonyms. So theoretically we would have 18 * 4 * 16 = 1,152 new phrases by combining all 3 lists together.

            ...

            ANSWER

            Answered 2021-May-06 at 21:21
            import itertools
            
            new_phrases = list(itertools.product(*dictionary.values()))
            

            Source https://stackoverflow.com/questions/67426019

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

            Vulnerabilities

            No vulnerabilities reported

            Install syn

            You can download it from GitHub.
            Rust is installed and managed by the rustup tool. Rust has a 6-week rapid release process and supports a great number of platforms, so there are many builds of Rust available at any time. Please refer rust-lang.org for more information.

            Support

            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
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            CLONE
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            https://github.com/dtolnay/syn.git

          • CLI

            gh repo clone dtolnay/syn

          • sshUrl

            git@github.com:dtolnay/syn.git

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