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module Golf where

import Data.List

every n xs = case drop (n-1) xs of
               (y:ys) -> y:every n ys
               [] -> []

skips :: [a] -> [[a]]
skips xs = map (\n -> every n xs) [1..length xs]

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frequencies :: [Integer] -> [(Integer, Int)]
frequencies xs = map (\x -> (head x, length x)) . group . sort $ xs

dabd

module Golf where

import Data.List
import Data.Text (justifyRight, pack, unpack)
import Data.Ord (comparing)

-- ex 1
skips :: [a] -> [[a]]
skips xs = map (flip every xs) [1..length xs]

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1) Error mapping com.google.gson.JsonObject to org.me.modelmappertest.Foo

1 error
	at org.modelmapper.internal.Errors.throwMappingExceptionIfErrorsExist(Errors.java:374)
	at org.modelmapper.internal.MappingEngineImpl.map(MappingEngineImpl.java:69)
	at org.modelmapper.ModelMapper.mapInternal(ModelMapper.java:497)
	at org.modelmapper.ModelMapper.map(ModelMapper.java:340)
	at org.me.modelmappertest.TestGsonMapper.main(TestGsonMapper.java:31)
Caused by: java.lang.NullPointerException

dabd

package org.me.modelmapper;

import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import java.util.ArrayList;
import org.modelmapper.ModelMapper;
import org.modelmapper.config.Configuration;
import org.modelmapper.jackson.JsonNodeValueReader;
import org.testng.Assert;

dabd

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>org.me.modelmappertest</groupId>
    <artifactId>modelMapperTest</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>jar</packaging>
    <dependencies>
        <dependency>
            <groupId>org.modelmapper</groupId>

dabd

-------------------------------------------------------
 T E S T S
-------------------------------------------------------
Running org.me.modelmapper.JsonModelMapperTest
Configuring TestNG with: org.apache.maven.surefire.testng.conf.TestNG652Configurator@5704ce99
Tests run: 1, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 0.921 sec <<< FAILURE!
shouldMapFromJsonNode(org.me.modelmapper.JsonModelMapperTest)  Time elapsed: 0.336 sec  <<< FAILURE!
org.modelmapper.MappingException: ModelMapper mapping errors:

dabd

/*
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 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package org.me.modelmapper;

import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.google.gson.JsonElement;

dabd

Configuring TestNG with: org.apache.maven.surefire.testng.conf.TestNG652Configurator@60acc399
Tests run: 1, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 2.326 sec <<< FAILURE!
shouldMapHashMapToFoo(org.me.modelmapper.JsonModelMapperTest)  Time elapsed: 0.186 sec  <<< FAILURE!
org.modelmapper.ConfigurationException: ModelMapper configuration errors:

1) Invalid source method java.util.HashMap.get(). Ensure that method has zero parameters and does not return void.

2) Invalid source method java.util.HashMap.get(). Ensure that method has zero parameters and does not return void.

2 errors

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(def foo-parser
  (insta/parser
   "grammar = foo | other
    foo = 'FOO'
    other = !foo"
   :auto-whitespace :standard))