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Merge pull request #759 from apurvabanka/kotlin_string
Kotlin String Implementaiton
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| { | ||
| "meta": { | ||
| "language": "kotlin", | ||
| "language_version": "1.5", | ||
| "language_name": "Kotlin", | ||
| "structure": "strings" | ||
| }, | ||
| "concepts": { | ||
| "is_primitive_or_not": { | ||
| "name": "Is this a built-in type in this language?", | ||
| "code": "Yes" | ||
| }, | ||
| "import": { | ||
| "name": "Import the string class", | ||
| "code": "import kotlin.String;", | ||
| "comment": "Import is not necessary as 'String' is present by default in all Kotlin programs." | ||
| }, | ||
| "default_string_byte_encoding": { | ||
| "name": "Default byte encoding (ex: ASCII, UTF-8, UTF-16, etc.)", | ||
| "code": "UTF-8" | ||
| }, | ||
| "create_new_string": { | ||
| "name": "Create new string", | ||
| "code": "val myString: String = \"......\"" | ||
| }, | ||
| "create_multiline_string": { | ||
| "name": "Create new multi-line string", | ||
| "code": "val multiLineString = \"Line 1\n Line2\n Line3\";", | ||
| "comment": "Multiline literal implementation does not exist in Kotlin." | ||
| }, | ||
| "assign_new_string": { | ||
| "name": "Assign string from another string", | ||
| "code": "val stringOne = \"A new string.\";\nval stringTwo = stringOne;" | ||
| }, | ||
| "destroy_string": { | ||
| "name": "Destroy string", | ||
| "not-implemented": true | ||
| }, | ||
| "length_of_string": { | ||
| "name": "Length of string", | ||
| "code": "variableName.length\n\"Word\".length" | ||
| }, | ||
| "max_length_of_string": { | ||
| "name": "Maximum length of string", | ||
| "code": "2,147,483,647 characters" | ||
| }, | ||
| "clear_string": { | ||
| "name": "Clear/empty string", | ||
| "code": "val stringVariableYouWantEmptied = \"\"\nval emptyString: String = String()" | ||
| }, | ||
| "is_empty": { | ||
| "name": "Is string empty?", | ||
| "code": "val results: Boolean = (stringVariable == null || \nstringVariable.length == 0)", | ||
| "comment": "The results Boolean will return true if the string is null or is an empty string." | ||
| }, | ||
| "concatenate_two_strings": { | ||
| "name": "Concatenate/join two strings", | ||
| "code": "val str1 = \"Hello \"\n\"val str2 = \"World\"\nString str3 = str1 + str2" | ||
| }, | ||
| "concatenate_many_strings": { | ||
| "name": "Concatenate/join many strings", | ||
| "code": "val str1 = \"Hello \"\nval str2 = \"World\";\nval str3 = \"I\";\nval str4 = \"am\";\nval str5 = \"a computer!\";\nval results = str1 + str2 + str3 + str4 + str5;" | ||
| }, | ||
| "is_all_alphabetical": { | ||
| "name": "Is string all alphabetical characters?", | ||
| "code": "val isAllAlphabetical1 = str1.all { it.isLetter() }", | ||
| "comment": "You can use isLetter to check if the string contains all alphabets" | ||
| }, | ||
| "is_all_numerical": { | ||
| "name": "Is string all numerical characters?", | ||
| "code": "val isAllNumerical1 = str1.all { it.isDigit() }", | ||
| "comment": "You can use isDigit to check if the string contains all numbers" | ||
| }, | ||
| "is_all_alphanumeric": { | ||
| "name": "Is string all alphanumeric characters?", | ||
| "code": "val isAllAlphanumeric1 = str1.all { it.isLetterOrDigit() }", | ||
| "comment": "You can use isLetterOrDigit to check if the string contains letters and alphabets" | ||
| }, | ||
| "is_decimal": { | ||
| "name": "Is string a decimal number?", | ||
| "not-implemented": true | ||
| }, | ||
| "is_all_whitespaces": { | ||
| "name": "Is string all whitespace characters?", | ||
| "code": "val isAllWhitespace1 = str1.all { it.isWhitespace() }", | ||
| "comment": "You can use isWhitespace to check if the string contains all whitespaces" | ||
| }, | ||
| "is_all_uppercase": { | ||
| "name": "Is string all uppercase characters?", | ||
| "code": "input.all { it.isUpperCase() }", | ||
| "comment": "isUpperCase is true if string is all uppercase." | ||
|
|
||
| }, | ||
| "is_all_lowercase": { | ||
| "name": "Is string all lowercase characters?", | ||
| "code": "val isAllLowercase = str.all { it.isLowerCase() }", | ||
| "comment": "You can use isLowerCase to check if the string contains all whitespaces" | ||
| }, | ||
| "is_in_titlecase": { | ||
| "name": "Is string formatted in title case?", | ||
| "code": "val isTitleCase = str.split(\" \").all { it.isNotEmpty() && \n it[0].isUpperCase() && it.substring(1).all { char -> char.isLowerCase() } }" | ||
| }, | ||
| "does_substring_exist": { | ||
| "name": "Does a substring exist in a string?", | ||
| "code": "str.contains(subString)" | ||
| }, | ||
| "find_start_index_of_substring": { | ||
| "name": "Find index of where a substring starts", | ||
| "code": "str.indexOf(subString)" | ||
| }, | ||
| "find_start_index_of_additional_substring": { | ||
| "name": "Find index of an additional substring (or starting at another index)", | ||
| "code": "str.indexOf(subString, startIndex)" | ||
| }, | ||
| "find_start_index_of_substring_from_end": { | ||
| "name": "Find substring index starting at end", | ||
| "code": "str.lastIndexOf(subString, startIndex);" | ||
| }, | ||
| "count_occurrences_of_substring": { | ||
| "name": "Find number of occurences of a substring", | ||
| "not-implemented": true | ||
| }, | ||
| "get_leftmost_characters": { | ||
| "name": "Get a specified number of characters from the left", | ||
| "code": "inputString.take(n)", | ||
| "comment": "Returns the left n characters" | ||
| }, | ||
| "get_rightmost_characters": { | ||
| "name": "Get a specified number of characters from the right", | ||
| "code": "inputString.takeLast(n)", | ||
| "comment": "Returns the right n characters" | ||
| }, | ||
| "get_substring_from_start_and_end_index": { | ||
| "name": "Return a substring from a string based on starting and ending indices", | ||
| "code": "inputString.substring(startIndex, endIndex)" | ||
| }, | ||
| "get_substring_from_start_index_and_length": { | ||
| "name": "Return a substring from a string based on starting index and size of substring", | ||
| "code": "str.substring(startIndex, endIndex.length)", | ||
| "comment": "Second parameter in substring() is exclusive." | ||
|
|
||
| }, | ||
| "convert_to_uppercase": { | ||
| "name": "Convert string to all uppercase", | ||
| "code": "str.toUppercase();" | ||
| }, | ||
| "convert_to_lowercase": { | ||
| "name": "Convert string to all lowercase", | ||
| "code": "str.toLowercase();" | ||
| }, | ||
| "convert_to_title_case": { | ||
| "name": "Convert string to title case", | ||
| "not-implemented": true | ||
| }, | ||
| "capitalize_string": { | ||
| "name": "Capitalize first letter of a string", | ||
| "code": "input[0].uppercaseChar() + input.substring(1)" | ||
| }, | ||
| "remove_whitespace": { | ||
| "name": "Remove all whitespaces from string", | ||
| "code": "input.replace(\"\\s+\".toRegex(), \"\")" | ||
| }, | ||
| "replace_substring": { | ||
| "name": "Replace a substring with another string", | ||
| "code": "replace(\"abcd\", \"dddd\")" | ||
| }, | ||
| "replace_all_substring": { | ||
| "name": "Replace all substring matches with another string", | ||
| "code": "input.replace(target, replacement)" | ||
| }, | ||
| "split_at_index": { | ||
| "name": "Split string into a list of strings at a given index", | ||
| "code": "input.substring(0, index) to input.substring(index)" | ||
| }, | ||
| "split_at_newlines": { | ||
| "name": "Split string into a list of strings at every new line character", | ||
| "code": "List stringList = strings.split(\"\\n\")" | ||
| }, | ||
| "split_at_substring": { | ||
| "name": "Split string by locating all substrings", | ||
| "code": "string.split(substring)" | ||
| }, | ||
| "merge_lists_into_string": { | ||
| "name": "Merge a list of strings into one string", | ||
| "code": "combinedList.joinToString(delimiter)" | ||
| }, | ||
| "encode_html_entities": { | ||
| "name": "Encode HTML entities in a string (ex: ™ to ™)", | ||
| "not-implemented": true | ||
| }, | ||
| "decode_html_entities": { | ||
| "name": "Decode HTML entitles into characters", | ||
| "not-implemented": true | ||
| }, | ||
| "encode_url_percent": { | ||
| "name": "Encode URL percent encoding into string (ex: ' ' to %20)", | ||
| "not-implemented": true | ||
| }, | ||
| "decode_url_percent": { | ||
| "name": "Decode URL percent encoding", | ||
| "not-implemented": true | ||
| }, | ||
| "encode_to_base64": { | ||
| "name": "Encode string into Base64 format", | ||
| "code": "Base64.getEncoder().encodeToString(input.toByteArray())" | ||
| }, | ||
| "decode_from_base64": { | ||
| "name": "Decode string from Base64 format", | ||
| "code": "val decodedBytes = Base64.getDecoder().decode(encodedString)\nreturn String(decodedBytes)" | ||
| }, | ||
| "format_string_function": { | ||
| "name": "Function to format a string", | ||
| "code": "String.format(template, *values)" | ||
| }, | ||
| "parameter_format_in_order": { | ||
| "name": "Parameter used in format function if they're used in order", | ||
| "not-implemented": true | ||
| }, | ||
| "format_as_integer": { | ||
| "name": "Format parameter as an integer", | ||
| "code": "input.toInt()" | ||
| }, | ||
| "format_number_in_scientific_notation_little_e": { | ||
| "name": "Format number with scientific notation with 'e'", | ||
| "code": "String.format(\"%.6e\", number).replace('E', 'e')" | ||
| }, | ||
| "format_number_in_octal": { | ||
| "name": "Format number into octal", | ||
| "code": "Integer.toOctalString(number)" | ||
| }, | ||
| "format_number_in_hexadecimal": { | ||
| "name": "Format number into hexadecimal", | ||
| "code": "Integer.toHexString(number)" | ||
| } | ||
| } | ||
| } |