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mirkoperilloericbalawejder
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ericbalawejder
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move from chars to squeaky-clean slug (exercism#1901)
Co-authored-by: Eric Balawejder <eric.balawejder@protonmail.com>
1 parent 9bd9ff8 commit 6830b2f

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‎config.json‎

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"status": "wip"
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},
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{
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"slug": "chars",
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"slug": "squeaky-clean",
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"name": "Squeaky Clean",
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"uuid": "b18ad603-e50e-4358-bb3e-0942fefb9dba",
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"concepts": [
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"chars"

exercises/concept/chars/.docs/hints.md renamed to exercises/concept/squeaky-clean/.docs/hints.md

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exercises/concept/chars/.docs/instructions.md renamed to exercises/concept/squeaky-clean/.docs/instructions.md

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# Instructions
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In this exercise you will implement a partial set of utility routines to help a developer
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clean up identifier names.
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clean up SqueakyClean names.
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In the 4 tasks you will gradually build up the routine `clean` A valid identifier comprises
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In the 4 tasks you will gradually build up the routine `clean` A valid SqueakyClean comprises
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zero or more letters and underscores.
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In all cases the input string is guaranteed to be non-null. Note that the `clean` method should treat an empty string as valid.
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## 1. Replace any spaces encountered with underscores
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Implement the (_static_) `Identifier.clean()` method to replace any spaces with underscores. This also applies to leading and trailing spaces.
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Implement the (_static_) `SqueakyClean.clean()` method to replace any spaces with underscores. This also applies to leading and trailing spaces.
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```java
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Identifier.clean("my Id");
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SqueakyClean.clean("my Id");
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// => "my___Id"
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```
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## 2. Replace control characters with the upper case string "CTRL"
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Modify the (_static_) `Identifier.clean()` method to replace control characters with the upper case string `"CTRL"`.
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Modify the (_static_) `SqueakyClean.clean()` method to replace control characters with the upper case string `"CTRL"`.
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```java
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Identifier.clean("my\0Id");
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SqueakyClean.clean("my\0Id");
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// => "myCTRLId",
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```
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## 3. Convert kebab-case to camelCase
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Modify the (_static_) `Identifier.clean()` method to convert kebab-case to camelCase.
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Modify the (_static_) `SqueakyClean.clean()` method to convert kebab-case to camelCase.
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```java
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Identifier.Clean("à-ḃç");
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SqueakyClean.Clean("à-ḃç");
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// => "àḂç"
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```
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## 4. Omit Greek lower case letters
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Modify the (_static_) `Identifier.clean()` method to omit any Greek letters in the range 'α' to 'ω'.
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Modify the (_static_) `SqueakyClean.clean()` method to omit any Greek letters in the range 'α' to 'ω'.
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```java
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Identifier.Clean("MyΟβιεγτFinder");
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SqueakyClean.Clean("MyΟβιεγτFinder");
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// => "MyΟFinder"
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```

exercises/concept/chars/.docs/introduction.md renamed to exercises/concept/squeaky-clean/.docs/introduction.md

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exercises/concept/chars/.meta/config.json renamed to exercises/concept/squeaky-clean/.meta/config.json

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],
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"files": {
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"solution": [
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"src/main/java/Identifier.java"
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"src/main/java/SqueakyClean.java"
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],
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"test": [
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"src/test/java/IdentifierTest.java"
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"src/test/java/SqueakyCleanTest.java"
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],
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"exemplar": [
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".meta/src/reference/java/Identifier.java"
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".meta/src/reference/java/SqueakyClean.java"
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]
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},
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"forked_from": [

exercises/concept/chars/.meta/design.md renamed to exercises/concept/squeaky-clean/.meta/design.md

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exercises/concept/chars/.meta/src/reference/java/Identifier.java renamed to exercises/concept/squeaky-clean/.meta/src/reference/java/SqueakyClean.java

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class Identifier {
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class SqueakyClean {
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static String clean(String identifier) {
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final StringBuilder cleanIdentifier = new StringBuilder();
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for (int i = 0; i < identifier.length(); i++) {

exercises/concept/chars/build.gradle renamed to exercises/concept/squeaky-clean/build.gradle

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exercises/concept/chars/src/main/java/Identifier.java renamed to exercises/concept/squeaky-clean/src/main/java/SqueakyClean.java

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class Identifier {
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class SqueakyClean {
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static String clean(String identifier) {
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throw new UnsupportedOperationException("Please implement the (static) Chars.clean() method");
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throw new UnsupportedOperationException("Please implement the (static) SqueakyClean.clean() method");
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}
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}

exercises/concept/chars/src/test/java/IdentifierTest.java renamed to exercises/concept/squeaky-clean/src/test/java/SqueakyCleanTest.java

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import static org.assertj.core.api.Assertions.assertThat;
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public class IdentifierTest {
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public class SqueakyCleanTest {
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@Test
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public void empty() {
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assertThat(Identifier.clean("")).isEmpty();
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assertThat(SqueakyClean.clean("")).isEmpty();
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}
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@Ignore("Remove to run test")
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@Test
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public void single_letter() {
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assertThat(Identifier.clean("A")).isEqualTo("A");
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assertThat(SqueakyClean.clean("A")).isEqualTo("A");
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}
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@Ignore("Remove to run test")
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@Test
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public void string() {
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assertThat(Identifier.clean("àḃç")).isEqualTo("àḃç");
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assertThat(SqueakyClean.clean("àḃç")).isEqualTo("àḃç");
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}
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@Ignore("Remove to run test")
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@Test
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public void spaces() {
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assertThat(Identifier.clean("my Id")).isEqualTo("my___Id");
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assertThat(SqueakyClean.clean("my Id")).isEqualTo("my___Id");
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}
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@Ignore("Remove to run test")
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@Test
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public void leading_and_trailing_spaces() {
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assertThat(Identifier.clean(" myId ")).isEqualTo("_myId_");
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assertThat(SqueakyClean.clean(" myId ")).isEqualTo("_myId_");
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}
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@Ignore("Remove to run test")
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@Test
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public void ctrl() {
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assertThat(Identifier.clean("my\0Id")).isEqualTo("myCTRLId");
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assertThat(SqueakyClean.clean("my\0Id")).isEqualTo("myCTRLId");
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}
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@Ignore("Remove to run test")
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@Test
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public void string_with_no_letters() {
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assertThat(Identifier.clean("\uD83D\uDE00\uD83D\uDE00\uD83D\uDE00")).isEmpty();
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assertThat(SqueakyClean.clean("\uD83D\uDE00\uD83D\uDE00\uD83D\uDE00")).isEmpty();
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}
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@Ignore("Remove to run test")
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@Test
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public void kebab_to_camel_case() {
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assertThat(Identifier.clean("à-ḃç")).isEqualTo("àḂç");
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assertThat(SqueakyClean.clean("à-ḃç")).isEqualTo("àḂç");
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}
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@Ignore("Remove to run test")
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@Test
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public void omit_lower_case_greek_letters() {
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assertThat(Identifier.clean("MyΟβιεγτFinder")).isEqualTo("MyΟFinder");
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assertThat(SqueakyClean.clean("MyΟβιεγτFinder")).isEqualTo("MyΟFinder");
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}
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@Ignore("Remove to run test")
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@Test
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public void combine_conversions() {
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assertThat(Identifier.clean("9 -abcĐ\uD83D\uDE00ω\0")).isEqualTo("_AbcĐCTRL");
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assertThat(SqueakyClean.clean("9 -abcĐ\uD83D\uDE00ω\0")).isEqualTo("_AbcĐCTRL");
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}
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}

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