revo | an R5RS Scheme Interpreter | Interpreter library
kandi X-RAY | revo Summary
kandi X-RAY | revo Summary
Revo is a programming language derived from scheme. And this repo is on purpose to implement it in Ruby. Revo is mostly compatible with r5rs, while beside it may have some extensions.
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Top functions reviewed by kandi - BETA
- Compile a pattern into a Pattern
- Compile a template
- Apply the parameters .
- Expands an array of symbols
- Read the next token .
- Iterates over each token .
- Iterates over each element in this List .
- returns an array of integers
- Replaces the + string + in + str + .
- Returns a string representation of this statement .
revo Key Features
revo Examples and Code Snippets
Lines of Code : 13License : Permissive (MIT License)
Copydef reverse_letters(input_str: str) -> str:
"""
Reverses letters in a given string without adjusting the position of the words
>>> reverse_letters('The cat in the hat')
'ehT tac ni eht tah'
>>> reverse_letters Community Discussions
Trending Discussions on revo
QUESTION
Good day, I have here a batch file (I call Installer.bat because it installs softwares)
...ANSWER
Answered 2021-May-23 at 12:53All these actions are essentially the same steps with different data. Use a function.
A function is a label that is called with parameters to act upon.
After your input prompt, validate your input, then assess which path to pass to the function as the second parameter.
Call :InstallPrompt "Installee Descriptor" "Installees Filename.ext"
An example of all your labels reduced to a single function.
QUESTION
I have list of article, title, and keyword contains this word:
...ANSWER
Answered 2021-Apr-14 at 08:18It's a bit unclear to me what you are trying to achieve, but the way I interpret the question is that you want to iterate over the articles in article, check if any of the keywords appear in the article and append those keywords to ab, or, if none of the keywords appear in the article, extend ab with any keywords that appear in the corresponding title of the article. If this is the correct interpretation, then you could do something like this:
QUESTION
I'm trying to learn r and I came accross an exerscie that I dont know how to solve. I'm trying to write a function that takes a string as argument and flips the characters of each word.
For example:
sentence.flipper("the quick brown fox jumped over the lazy dog")
should return "eht kciuq nworb xof depmuj revo eht yzal god"
So far I have written this
...ANSWER
Answered 2021-Apr-09 at 01:04First split the sentence in words, then split each word into character, reverse them and paste them together.
QUESTION
I'm extracting table from HTML. but I can't write it properly to csv file. Before that I use argparser but I had to change because I want to make a loop for a lot of files. My code is like this:
...ANSWER
Answered 2021-Mar-17 at 08:34Try the following approach. It builds a list of rows with table_num prefixed to each row and just returns that from convert(). Secondly, it then uses the .writerows() function to write all of the rows in a single call.
Note, encoding='utf-8' is used to ensure all characters are written correctly. This would need to be viewed using something that can display that encoding (Excel doesn't by default). newline='' is added to ensure newlines are handled correctly where values are also multiline.
QUESTION
I'm in need of sharing some TypeScript types between my React client and my Express REST API in order to keep the code clean and DRY. Since this is a private proejct I wouldn't share these types through the @types repository, so I've followed the guide on the TypeScript website and this is the result...
Everything is working just fine in the React client: I've installed the types as a dev dependency and used them flawlessly.
In the Express API I get this error and I presume it has something to do with how I structured my package.
What am I doing wrong? As ignorant as I am I'd suppose it's related with how the modules are loaded, but I can't figure out precisely what may be causing the error.
...ANSWER
Answered 2021-Mar-09 at 15:22An enum type is not a pure type. The TypeScript compiler generates some JavaScript code for this type. The rest of your code needs it.
At run time, after a normal deployment, your code can't access to the "dev dependencies". Only the dependencies have been installed.
In the case of your frontend, there is a little magic due to Webpack. At build time, Webpack follows the code in all the dependencies (including dev dependencies), and packs them. So the compiled code of your private dependency is in the bundle and it works.
SolutionsSolution 1 : It is possible to publish your package @revodigital/suiteods-types with just the javascript code used at runtime. And then the package can be used as a regular dependency.
Solution 2 : It is possible to use a bundler (Webpack or Rollup) in the back-end to pack the used code. The private package will be packed the same way as in the front-end.
Solution 3 : Make the types in the private package "pure types" so it won't be needed at all at runtime. Replace all the enum types by unions of strings.
For example:
QUESTION
I am making my first baby steps with Leaflet in Flutter, so patience and URLs of tutorials, etc, are welcome.
Every piece of sample code that I can find gives me this error:
The method 'LatLng' isn't defined for the type '_MyHomePageState'. Try correcting the name to the name of an existing method, or defining a method named 'LatLng'.
See for instance the answer to How to setCenter() leaflet map in flutter,which has some very straightforward code.
This part of the code
...ANSWER
Answered 2020-Oct-14 at 10:16Import Latlong like below:
QUESTION
In my app, i have an Activity, which has a FrameLayout in it. In this FrameLayout, there is a fragment, containing a ToolBar and a RecyclerView.
In this toolbar, i have a search button, which should start an Activity on item click. However, when i try to use onOptionsItemSelected, the apps gets built and installed succesfully, but when i try to tap that button in question, nothing happens. The Logcat, doesnt say anything either.
Can some points me what im doing wrong? Are there simpler or other easy ways to manage on ToolBar item clicks?
Fragment.kt
ANSWER
Answered 2020-Sep-24 at 20:11I found a solution thanks to some external help. Its possible to work on the Toolbars item in an easier way.
In the onViewCreated method, we must add:
QUESTION
I've been struggling with trying to start Android Studio under 64-bit Windows 10 Pro. The installer file is named android-studio-ide-193.6626763-windows, so I assume the the version is 193.6626763. I've searched very extensively and found quite a few reports of general "Android Studio Start Failed", and I've tried all of the suggested fixes for each of them. The most common of these is to reboot multiple times (I've tried 10 times with no luck), carefully examined and verified all environment variables (all are correct). Of course, I also tried several times uninstalling Android Studio and Java and its JDK & JRE, and even the JetBrains stuff using Revo Uninstaller 4 Pro. Then I scoured and cleaned the registry of any remaining traces left over (quite a few of them), then scoured every drive and folder for any file system traces and deleted all of them.
Then I rebooted a couple of times. Then I re-installed Java / JDK / JRE / JetBrains intellij and finally Android Studio. When I got exactly the same errors, I rebooted a couple of times and tried again.
Nothing helped.
Here is the full text of the error window:
...ANSWER
Answered 2020-Aug-20 at 23:40ANDROID_SDK_HOME must point to a single directory. On Windows the valid value would look like C:\Users\\.android\ where should be replaced with your account name.
You can also completely remove this environment variable so that the default location is used.
The issue can be caused by incorrect value of this variable: several directories separated with semicolons (C:\Users\mjb\AppData\Local\Microsoft\WindowsApps;C:\Program Files (x86)\Nmap;C:\Program Files\Java\jdk-14.0.2;C:\Program Files\Java\jdk-14.0.2\bin;). It's not like PATH and cannot point to multiple directories.
Note that you need to logout/login or reboot after changing the environment variables.
See also this answer.
QUESTION
I have 2 array in NodeJS:
...ANSWER
Answered 2020-Aug-09 at 03:03You should iterate over the values in dataCms to ensure they are all present as keys in your output. Then you can filter the values in outJSON based on the cms value and create an object which is the value from outJSON without the cms key to push into the result array:
QUESTION
Im currently creating an app, which has a MaterialToolbar widget. I want to set the icons color to white.
I tried following the accepted answer in this question, however, it doesnt work. Adding colorControlNormal in styles.xml doesnt work.
This is my MaterialToolbar xml code:
...ANSWER
Answered 2020-Jun-30 at 15:40That one bugged me a few days ago. I ended up doing this:
set your desired color to a variable in
colors.xml#ffffff
Then set this color directly in the source of drawable
android:fillColor="@color/toolbarTextColor"
Also, use same variable when setting color of text in
MaterialToolbar.
This way, you have icons always the same color as text, which is, I suppose, what you want. Otherwise, just use another variable.
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Install revo
On a UNIX-like operating system, using your system’s package manager is easiest. However, the packaged Ruby version may not be the newest one. There is also an installer for Windows. Managers help you to switch between multiple Ruby versions on your system. Installers can be used to install a specific or multiple Ruby versions. Please refer ruby-lang.org for more information.
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