medusa | Immutable and persistent collections for PHP | Functional Programming library

by keyvanakbary PHP Version: Current License: MIT

X-Ray Key Features Code Snippets Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | medusa Summary

medusa is a PHP library typically used in Programming Style, Functional Programming applications. medusa has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

Immutable and persistent collections for PHP. Life would be a lot simpler if we had immutable data structures. Code would be easier to understand, easy to test and free of side-effects. Being immutable is not all, these data structures must be efficient. By making them persistent, collections reuse internal structure to minimize the number of operations needed to represent altered versions of an instance of a collection.

Support

Quality

Security

License

Reuse

Support

medusa has a low active ecosystem.

It has 152 star(s) with 13 fork(s). There are 7 watchers for this library.

It had no major release in the last 6 months.

There are 0 open issues and 1 have been closed. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of medusa is current.

Quality

medusa has 0 bugs and 0 code smells.

Security

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

medusa code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

medusa 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

medusa releases are not available. You will need to build from source code and install.

Installation instructions, examples and code snippets are available.

medusa saves you 441 person hours of effort in developing the same functionality from scratch.

It has 1042 lines of code, 181 functions and 17 files.

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

Top functions reviewed by kandi - BETA

kandi has reviewed medusa and discovered the below as its top functions. This is intended to give you an instant insight into medusa implemented functionality, and help decide if they suit your requirements.

Remove a subtree
Make the right of the tree
Adds a value to a key
Removes the node .
Remove the element from the stack
Reverse reverse stack
Is this collection empty?
Return the blacklisted tree .
Append a value to the collection .
Returns the number of entities

Get all kandi verified functions for this library.

medusa Key Features

No Key Features are available at this moment for medusa.

medusa Examples and Code Snippets

No Code Snippets are available at this moment for medusa.

Community Discussions

Trending Discussions on medusa

Why do I get this error when I'm trying to create models from database?

Logback in a Java modular application not working

How to read file into class in C++?

Error when trying to retrieve from database

Extract distinct portions of long string with varying punctuation using RegEx

Format ansible output

INNER JOIN SQL query includes duplicates

d3.js multiple relationship visual / linkHorizontal() / tangled tree

How to change property of element removed from array?

Find longest subsequence that contains letters with the same frequency in order

QUESTION

Why do I get this error when I'm trying to create models from database?

Asked 2021-May-05 at 06:07

I'm trying to create models from my Oracle database 10g using Entity Framework Core 5 dbcontext scaffold:

...

ANSWER

Answered 2021-May-05 at 06:07

The fine manual says minimum oracle 11.2 for that provider

Upgrade your db or change provider

Source https://stackoverflow.com/questions/67395767

QUESTION

Logback in a Java modular application not working

Asked 2021-Apr-14 at 15:43

I am just starting to master modular applications and I have a problem with the logback.

Before modularity was introduced into the project, Logback successfully worked with the same settings.

As soon as I start working with the LoggerContext and add the line requires ch.qos.logback.classic to the module-info.java, the application crashes.

Crash occurs in the line receiving the logger:

...

ANSWER

Answered 2021-Apr-14 at 14:28

It is a bug in logback 1.3.0-alpha5
Add

Source https://stackoverflow.com/questions/67092557

QUESTION

How to read file into class in C++?

Asked 2021-Apr-12 at 17:05

I am reading File that contains

...

ANSWER

Answered 2021-Apr-12 at 17:05

This code reads your file and stores the data in the std::vector Info using stringstreams and other things to parse.

Source https://stackoverflow.com/questions/67061682

QUESTION

Error when trying to retrieve from database

Asked 2021-Feb-17 at 13:04

I have generated three classes from XSD schema:

...

ANSWER

Answered 2021-Feb-17 at 12:50

We are missing the medusa initialization code, but you should do something like this:

Source https://stackoverflow.com/questions/66242165

QUESTION

Extract distinct portions of long string with varying punctuation using RegEx

Asked 2021-Jan-26 at 20:49

I have a text file with many rows that generally follow the patterns shown below and I'd like to extract the segments numbered 1-4 in the image below. I cannot do it with Excel because the punctuation is not sufficiently consistent so I'd like to use RegEx.

I am looking for 4 distinct RegEx expressions, corresponding to the 4 items.

What I have so far:

(.+?(?=/)) gets me everything up to the / but I can't figure out how to split it in the Yellow and Cyan sections
(?<=\/\s)(.*) gets me everything after the / but includes the Mintmark portion

Here is a good sample of the file contents:

...

ANSWER

Answered 2021-Jan-26 at 20:49

You could use a single pattern with 4 capturing groups.

Source https://stackoverflow.com/questions/65877827

QUESTION

Format ansible output

Asked 2021-Jan-05 at 15:19

I have ansible role which checks the latest backups from my databases (cassandra and elasticsearch) so i have this output

...

ANSWER

Answered 2021-Jan-05 at 15:19

If the output of the ansible-playbook other/check_backup_status.yml -i hosts/mvd/prod/hosts.yml command goes to the standard output, I can redirect that output to awk in the next way:

Source https://stackoverflow.com/questions/65580456

QUESTION

INNER JOIN SQL query includes duplicates

Asked 2020-Nov-21 at 19:22

I have an online store and am trying to display five similar products on the product page. There is a many-to-many relationship between products and tags which I'm trying to query (join table) using INNER JOIN. Here is the SQL query I have thus far:

...

ANSWER

Answered 2020-Nov-21 at 18:30

You can group by product and sort the results by the number of matched tags:

Source https://stackoverflow.com/questions/64946563

QUESTION

d3.js multiple relationship visual / linkHorizontal() / tangled tree

Asked 2020-Nov-05 at 03:58

I am trying to mimic a visual that depicts multiple relationships by time period, like this (time period = generation):

However, my efforts have not panned out thus far; I'm still getting blank output in the browser. Hard coded data and code in the snippet:

...

ANSWER

Answered 2020-Oct-22 at 09:30

I think a lot of what you did, specifically around data wrangling, was not necessary, especially since you called d3.hierarchy() and d3.cluster() afterwards. I've replaced this with d3.stratify (which deals with hierarchical data that is not yet in the right format).

I've also replaced d3.cluster with d3.tree() because it was unclear to me why you'd want to use d3.cluster here. Your data has multiple parents, multiple roots and even floating nodes, and d3 is not meant to deal with that. My workaround has been to attach pseudonodes to every level, so as to make sure that there is only one node and that all nodes are at the right level at all times. To make sure the links were drawn correctly, I've written a custom getLinks function, that can deal with multiple parents.

I've also written a custom link generator that draws the links somewhat in the way that you want them. d3 doesn't offer much of flexibility here, but you can use the source code for inspiration.

Edit

I've changed the logic to be more focused on which "partners" got a child, so both links to the same child are on the same level - like in your picture. I've also drawn the nodes based on how many partners they have, and have given every link an offset so the lines are more distinct.

I've sorted the nodes so that the real pro-creators are at the top (Zeus), which gives a more balanced and less crowded view.

Source https://stackoverflow.com/questions/64423115

QUESTION

How to change property of element removed from array?

Asked 2020-Jul-20 at 18:04

this.statues.shift(); is isolating the correct element and removing it from the array. When this happens though, person.stoned needs to be false. Any pointers? Thank you.

Code:

...

ANSWER

Answered 2020-Jul-18 at 22:14

You need to save shifted object and set its property, like that:

Source https://stackoverflow.com/questions/62974294

QUESTION

Find longest subsequence that contains letters with the same frequency in order

Asked 2020-Jul-14 at 18:40

This is a question from the 2019 Australian Informatics Olympiad Competition:

After the success of your latest research project in mythical DNA, you have gained the attention of a most diabolical creature: Medusa. Medusa has snakes instead of hair. Each of her snakes’ DNA is represented by an uppercase string of letters. Each letter is one of S, N, A, K or E. Your extensive research shows that a snake’s venom level depends on its DNA. A snake has venom level x if its DNA:

• has exactly 5x letters • begins with x copies of the letter S

• then has x copies of the letter N

• then has x copies of the letter A

• then has x copies of the letter K

• ends with x copies of the letter E.

For example, a snake with venom level 1 has DNA SNAKE, while a snake that has venom level 3 has DNA SSSNNNAAAKKKEEE. If a snake’s DNA does not ﬁt the format described above, it has a venom level of 0. Medusa would like your help making her snakes venomous, by deleting zero or more letters from their DNA. Given a snake’s DNA, can you work out the maximum venom level this snake could have?

Is it possible using binary search to obtain an algorithm with complexity O(nlogn)?

...

ANSWER

Answered 2020-Jul-14 at 14:05

Yes you can use binary search to search for maximum venom level.

initially: l=0 r=n

when for some m=(l+r+1)/2 we can check in O(n) time if we can obtain such venom level m, just by taking first m letters S then next m letters N and so on. If there's not enough letters we update our search interval to r=m-1 otherwise l=m

Example: suppose input is SNAKESSSNNAAKKE

Binary search initial values: l=0 r=15
l=0 r=15 m = (l+r+1)/2 = 8
we cant get venom value of 8 so r=m-1 = 7
l=0 r=7 m = (l+r+1)/2 = 4
we cant get venom value of 4 so r=m-1 = 3
l=0 r=3 m = (l+r+1)/2 = 2
we can get venom value of 2 so l=m = 2
l=2 r=3 m = (l+r+1)/2 = 3
we cant get venom value of 3 so r=m-1 = 2
now since l==r we terminate binary search and conclude that answer is 2

Source https://stackoverflow.com/questions/62893590

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

Vulnerabilities

No vulnerabilities reported

Install medusa

To install this library, run the command below and you will get the latest version.

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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