fastparse | Writing Fast Parsers Fast in Scala | Parser library

by com-lihaoyi Scala Version: 2.3.3 License: MIT

X-Ray Key Features Code Snippets Community Discussions(5)Vulnerabilities Install Support

kandi X-RAY | fastparse Summary

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

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Quality

Security

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Support

fastparse has a medium active ecosystem.

It has 1039 star(s) with 164 fork(s). There are 38 watchers for this library.

It had no major release in the last 12 months.

There are 16 open issues and 114 have been closed. On average issues are closed in 284 days. There are 3 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of fastparse is 2.3.3

Quality

fastparse has 0 bugs and 0 code smells.

Security

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

fastparse code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

fastparse is licensed under the MIT License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

fastparse releases are available to install and integrate.

Installation instructions are not available. Examples and code snippets are available.

It has 22094 lines of code, 1473 functions and 83 files.

It has medium code complexity. Code complexity directly impacts maintainability of the code.

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fastparse Key Features

No Key Features are available at this moment for fastparse.

fastparse Examples and Code Snippets

No Code Snippets are available at this moment for fastparse.

Community Discussions

Trending Discussions on fastparse

SSIS Data Conversion string to timestamp

How can I compose a parser to parse a quoted regex in fastparse?

Why can't I use the constructor of a case class as a function for use inside map()

How to avoid left-recursion infinite loops in Fastparse?

No implicit view available from fastparse.P[Any] => fastparse.P[Unit]

QUESTION

SSIS Data Conversion string to timestamp

Asked 2021-Mar-15 at 04:22

I'm trying to convert a column into timestamp.

Value sample : ETime : 2020-06-04 17:46:53.750

What I've done

I add the data conversion, edit the input column (ETime)
Input and output properties on Show Advanced Editor
Data conversion output, choose copy of ETime
Change : FastParse : True and DataType : database timestamp [DT_DBTIMESTAMP]

But it returning this error

Error: 0xC02020C5 at Data Flow Task, Data Conversion [11]: Data conversion failed while converting column "ETime" (94) to column "Copy of ETime" (15). The conversion returned status value 2 and status text "The value could not be converted because of a potential loss of data.".

Am I missing something?

edit

Data sample 1.

...

ANSWER

Answered 2021-Mar-15 at 04:22

Tried with a missing row and got the exception:

Error: 0xC02020C5 at Data Flow Task, Data Conversion 1: Data conversion failed while converting column "Column 0" (25) to column "Copy of Column 0" (6). The conversion returned status value 2 and status text "The value could not be converted because of a potential loss of data.".

Now tried without any missing row and its worked

It seems there are missing value available or data not in correct format. Try ignore failue from Configure Error Output of data convertion component.

Source https://stackoverflow.com/questions/66526853

QUESTION

How can I compose a parser to parse a quoted regex in fastparse?

Asked 2020-Nov-15 at 22:23

What I wish to parse is any Regex that quoted with double quotes. For example, "([A-Z]+[A-Z]+[C])"

What I have tried so far is the following in Scala using fastparse library:

...

ANSWER

Answered 2020-Nov-15 at 22:23

To do negative lookaheads, use !. It will make sure the next character is not a double quote, but doesn't actually consume anything, just like a negative lookahead in normal regex. Then you can match on AnyChar or some other pattern.

Source https://stackoverflow.com/questions/64845783

QUESTION

Why can't I use the constructor of a case class as a function for use inside map()

Asked 2020-Aug-26 at 01:05

Passing the tuple directly to the constructor is not accepted by the compiler as the minimal example shows:

...

ANSWER

Answered 2020-Jul-22 at 04:42

You're looking for .tupled

Source https://stackoverflow.com/questions/63026912

QUESTION

How to avoid left-recursion infinite loops in Fastparse?

Asked 2020-Aug-08 at 19:19

I had a parser that worked well in Scala Packrat parser combinators. I would like to try something faster with the Fastparse library. However, it cannot handle left-recursion infinite loops. Is there any standard way to cope with that?

...

ANSWER

Answered 2020-Aug-08 at 19:19

I don't know much about Fastparse, but I'll try to answer your question nevertheless. Right now, your grammar looks something like this:

Source https://stackoverflow.com/questions/63027937

QUESTION

No implicit view available from fastparse.P[Any] => fastparse.P[Unit]

Asked 2020-Aug-05 at 17:55

I am working through the tutorial/explanation of fastparse and am getting the error message

...

ANSWER

Answered 2020-Aug-05 at 17:33

You missed one more import

Source https://stackoverflow.com/questions/63270429

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

Vulnerabilities

No vulnerabilities reported

Install fastparse

You can download it from GitHub.

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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