pascal | Concise syntax for polymorphic values in Scala | Functional Programming library

by TomasMikula Scala Version: v0.4.0 License: MIT

X-Ray Key Features Code Snippets(3)Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | pascal Summary

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

Concise syntax for polymorphic values in Scala.

Support

Quality

Security

License

Reuse

Support

pascal has a low active ecosystem.

It has 49 star(s) with 5 fork(s). There are 8 watchers for this library.

It had no major release in the last 12 months.

There are 1 open issues and 2 have been closed. On average issues are closed in 3 days. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of pascal is v0.4.0

Quality

pascal has 0 bugs and 0 code smells.

Security

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

pascal code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

pascal 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

pascal releases are available to install and integrate.

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

It has 215 lines of code, 16 functions and 5 files.

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

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pascal Key Features

No Key Features are available at this moment for pascal.

pascal Examples and Code Snippets

P∀scal,Encoding polymorphic values in Scala

Scala

Lines of Code : 14

License : Permissive (MIT)

Copy

def identity[α](x: α): α = x

def identity[α]: (α => α) = (x: α) => x

trait ForAll[F[_]] {
  def apply[A]: F[A]
}

type IdentityFun[A] = A => A

val identity: ForAll[IdentityFun] = new ForAll[IdentityFun] {
  def apply[A]: IdentityFun[A] =

P∀scal,More concise syntax

Scala

Lines of Code : 13

License : Permissive (MIT)

Copy

Λ[α](t): T

Λα. t : T

new T { def apply[α] = t }

Λ[α](x => x): ForAll[IdentityFun]

new ForAll[IdentityFun] { def apply[α] = x => x }

Λ[A, B[_], ...](t): T

new T { def apply[A, B[_], ...] = t }

ν[T][A, B[_], ...](t)

ν[T](t)

new T { def a

P∀scal,Using the plugin

Scala

Lines of Code : 7

License : Permissive (MIT)

Copy

addCompilerPlugin("com.github.tomasmikula" % "pascal" % "0.4.0" cross CrossVersion.full)

libraryDependencies ++= (scalaBinaryVersion.value match {
  case "2.10" =>
    compilerPlugin("org.scalamacros" % "paradise" % "2.1.0" cross CrossVersion.ful

Community Discussions

Trending Discussions on pascal

How to continue download on error in Inno Setup?

Floating Point double constants treated as extended

Image on a splash screen before Inno Setup installer does not display

Conditional Registry entries with Inno Setup

Exporting Yolov5 bboxes to Pascal format

Understanding Grossman & Zeitman's Algorithm

Saving command-line parameter value to text file in Inno Setup

Access 64 bit DLL from 32 bit DLL

Disable Inno Setup Next button until user selects the radio button

Compare paths in Inno Setup

QUESTION

How to continue download on error in Inno Setup?

Asked 2022-Apr-05 at 06:49

My Inno Setup script downloads some resources using built-in functionalities. It creates Download Wizard Page:

...

ANSWER

Answered 2022-Mar-30 at 09:37

A simple solution is to download each file separately.

The below code will allow user to select what to do on each file's download error:

Retry the download
Skip the download
Abort the installation.

Source https://stackoverflow.com/questions/71659973

QUESTION

Floating Point double constants treated as extended

Asked 2022-Mar-01 at 17:02

In a 664 bit app, If I compare a floating point constant to a value obtained from StrToFloat() for the same "value" I get a different results. For example:

...

ANSWER

Answered 2022-Feb-22 at 21:33

Float literals in Delphi are Extended by default. In 64 bits, that shouldn't make any difference, but in 32 bits it does. My guess is that the parser still internally represents float literals as a 10 byte float(extended), and then the 64 bits compiler "round it down" to 8 bytes(double) when compiling.

If my hypothesis is right, there might be nothing that can be done to circumvent that.

EDIT

Delphi does the following conversion

Double(3FE56C4FB47339B3) converts to Extended(3FFEAB627DA399CD9800)
Double(3FE56C4FB47339B4) converts to Extended(3FFEAB627DA399CDA000)
0.6694716 is Extended(3FFEAB627DA399CD9C00)

Source https://stackoverflow.com/questions/71225688

QUESTION

Image on a splash screen before Inno Setup installer does not display

Asked 2022-Feb-28 at 09:16

I am trying to create a splash screen for my installer in Inno Setup. I create a form that is displayed for 2 seconds at the beginning of the installer, but the image is not displayed in it.

Only when I use the ShowModal function is it displayed, but it does not close after 2 seconds.

Here is my code:

...

ANSWER

Answered 2022-Feb-23 at 07:20

That's because by calling Sleep you freeze Windows message pump, so the image cannot draw.

Quick and dirty solution is to force repaint before the Sleep:

Source https://stackoverflow.com/questions/71223838

QUESTION

Conditional Registry entries with Inno Setup

Asked 2022-Feb-08 at 20:51

I want some registry entries to be written if two conditions are met:

the installer is running in silent mode and
I have some command line parameters present.

Is there a way to do this in the [Registry] section?

I have something similar in the [Run] section:

...

ANSWER

Answered 2022-Feb-04 at 14:38

Use Check parameter:

Source https://stackoverflow.com/questions/70984111

QUESTION

Exporting Yolov5 bboxes to Pascal format

Asked 2022-Jan-26 at 14:19

There have been already some similar style questions asked before (1, 2) However, none have mentioned the new Yolov5 style annotations.

Is there a simple function that takes in a normalized Yolov5 bounding box like:-

...

ANSWER

Answered 2021-Nov-17 at 18:39

There is no direct way to convert the normalized Yolo format to another format like Pascal VOC, because you need to know the size of the image to do the conversion. (Just like you need to know the size of the image to convert it to the normalized yolo format in the first place.) You will also want to provide some mapping to convert the class numbers to class names.

I am working on a Python package to simplify these kinds of conversions called PyLabel. I have a sample notebook that will convert Yolo v5 annotations to VOC format here https://github.com/pylabel-project/samples/blob/main/yolo2voc.ipynb. You can open it in Colab using this link.

The core code will be something like this:

Source https://stackoverflow.com/questions/69994481

QUESTION

Understanding Grossman & Zeitman's Algorithm

Asked 2022-Jan-10 at 17:30

I've read the paper An inherently iterative computation of Ackermann's function, published by Grossman & Zeitman in which they present an algorithm which optimizes Ackermann's function.

We know that the Ackermann function produces the result in the subsequences A(m,n)

m=0: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17,...
m=1: 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18,...
m=2: 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33,...
m=3: 5, 13, 29, 61, 125, 253, 509, 1021, 2045, 4093, 8189, 16381, 32765, 65533,...
m=4: 13, 65533,...

It's stated that the Next array is to keep track of where we are in each subsequence, and the Goal array is to keep track of where we need to reach before transferring the value just calculated to the next subsequence. And all it does is incrementing 1 to the value:

...

ANSWER

Answered 2022-Jan-10 at 17:30

I've read over the paper to get a sense of what algorithm they're proposing, and it's actually not that bad when you get the hang of it.

The basic idea is the following. We have a two-argument version of the Ackermann function defined as follows:

A(0, n) = n + 1
A(i, 0) = A(i - 1, 1)
A(i, n) = A(i - 1, A(i, n - 1))

The approach the authors suggest is essentially a space-optimized, bottom-up calculation of the Ackermann function. Rather than give the final version of their algorithm, let's see if we can instead derive it from the above rules. We'll imagine filling in a 2D table where each row corresponds to a different value of i and each column corresponds to a value of n. Following the convention from the paper, we'll place the row for i = 0 on top, like this:

Source https://stackoverflow.com/questions/70601131

QUESTION

Saving command-line parameter value to text file in Inno Setup

Asked 2022-Jan-02 at 18:52

In addition to usual install tasks I need to get the value of the command line parameter (for example /MyParam=XXX) and then copy the parameter value (XXX) to a txt file in the app folder. So far I tried the code below but I don't know how to properly pass the parameter value to the code procedure.

...

ANSWER

Answered 2022-Jan-02 at 18:52

Start here: Is it possible to accept custom command line parameters with Inno Setup

Other things you need to know:

You have to ExpandConstant the {app} in the file path.
You should use CurStepChanged to trigger the writing. Using AfterInstall of an unrelated file works too, but it's more like a hack.

Source https://stackoverflow.com/questions/70228955

QUESTION

Access 64 bit DLL from 32 bit DLL

Asked 2021-Dec-18 at 11:40

I'm porting the CEF4Delfi library to Borland C++Builder 5. I make a BPL package from the ported CEF4Delfi source and reference it from my C++Builder 5 code.

I work on Windows 10 64bit.

While porting, I'm stuck on importing DLL functions.

Here is part of the imports:

...

ANSWER

Answered 2021-Dec-18 at 11:40

OK, thank you all, for making me understand the process of DLL importing.

As IInspectable and Remy Lebeau said - the import of DLL requires linking with the LIB. Here is more explanations. Also google - "linking a shared library to executable". It is not important whether it is .so or .dll, the principals are the same.

One other important point before I give a solution.

As Remy Lebeau said: several functions

didn't exist yet (or were introduced shortly before) when BCB5 was released

Solution First

Fix for makefile

Source https://stackoverflow.com/questions/70394871

QUESTION

Disable Inno Setup Next button until user selects the radio button

Asked 2021-Dec-08 at 14:30

I want to create an installer that has two versions of the software. I've implemented the radio button. But user can also click "Next" and the setup install nothing.

I want to disable the "Next" button until user select some of the options from the page.

...

ANSWER

Answered 2021-Dec-07 at 13:24

Use UsagePage.CheckListBox.OnClickCheck event to detect selection change and update the Next button state accordingly:

Source https://stackoverflow.com/questions/70231190

QUESTION

Compare paths in Inno Setup

Asked 2021-Dec-07 at 07:12

Is there a built-in way to compare two strings representing paths in Inno Setup Pascal? If not with one function, then perhaps via some normalisation of the path.

Naively comparing strings is obviously not correct, even if we ignore case with SameText() (as per the Windows rules).

As a minimum, correct comparison must

Treat \ and / as identical
Ignore multiple separators like \\ (theat them as one, like the OS)
Ignore trailing separators (to compare directory paths correctly, for which it is mainly needed)
Resolve paths (foo\..\bar equals bar, at least if foo exists)
etc. (rules are well known)
Not require the paths actually exist in the file system.

Resolving absolute vs. relative paths is a bonus, but it requires specifying the current path. Perhaps CWD is OK, but I'm not sure Inno accepts relative installation paths anyway.

This must be a fairly common task for an installer, but I'm surprised not to find an easy yet correct solution...

...

ANSWER

Answered 2021-Dec-03 at 13:21

Combine ExpandFileName, AddBackslash and SameText:

Source https://stackoverflow.com/questions/70208868

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

Vulnerabilities

No vulnerabilities reported

Install pascal

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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