Rufl is an util function library for rust. It provides a series of useful functions to make your rust development easier.

Rufl is short for "rust util function library".

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Features

• Powerful: supports commonly used development features, string, collection, random, file... etc.
• Pure: keep external dependencies to a minimum.
• Simple: well structure, test for every function.

Installation

• cargo add rufl

[dependencies]
rufl = "0.1.3"

Example

Here takes the string function add_commas (Add comma to a number value by every 3 numbers from right. Ahead by prefix symbol.) as an example, and the rufl::string mod needs to be used.

Code:

use rufl::string;

fn main() {
    let money_amount: String = string::add_commas("1234567", "$");
    println!("current money is {}", money_amount); // current money is $1,234,567
}

Documentation

Index

• collection
• eventbus
• file
• math
• random
• string

1. Collection mod contains several utility functions to manipulate collection data type. index

use rufl::collection;

• all_match: Returns true if all elements of the collection pass the predicate function check. [doc]

• chunk: Returns a vector of elements split into groups the length of size. [doc]

• count: Returns the number of occurrences of the given element in the collection. [doc]

• count_by: Iterates over elements of collection with predicate function, returns the number of all matched elements. [doc]

• difference: Creates a vector of values not included in the given collections using equality comparisons. [doc]

• difference_by: Like difference except that it accepts iteratee which is invoked for each element of collection and values to generate the criterion by which they’re compared. [doc]

• difference_with: Like difference except that it accepts comparator which is invoked to compare elements of collection to values. [doc]

• fill: Fills elements of vector with initial value. [doc]

• filter: Iterates over elements of collection, returning a collection of all elements pass the predicate function. [doc]

• filter_map: Returns a collection which apply both filtering and mapping to the given collection. [doc]

• find: Iterates over elements of collection, returning the first one and its index that pass predicate function. [doc]

• find_last: Iterates over elements of collection, returning the last one and its index that pass predicate function. [doc]

• index_of: Returns the index at which the first occurrence of a element is found in the collection. [doc]

• insert_at: Inserts an element at position index within the vector. [doc]

• intersection: Creates a vector of unique elements that included by the all collections. [doc]

• is_ascending_order: Checks if all elements are in ascending order within collection. [doc]

• is_descending_order: Checks if all elements are in descending order within collection. [doc]

• is_sorted: Checks if all elements are sorted(ascending or descending order) within collection. [doc]

• last_index_of: Returns the index at which the last occurrence of a element is found in the collection. [doc]

• map: Creates new collection of element by running each element in collection thru iteratee. [doc]

• max: Returns the maximum value of a collection. [doc]

• min: Returns the minimum value of a collection. [doc]

• none_match: Returns true if there is no element of the collection pass the predicate function check. [doc]

• partition: Partition collection elements with the evaluation of the given predicate function. [doc]

• reduce: Reduces collection to a value which is the accumulated result of running each element in collection thru iteratee [doc]

• reduce_right: Reduce right like reduce except that it iterates over elements of collection from right to left. [doc]

• remove_all: Remove all specific elements within the vector. [doc]

• replace_all: Replace all old items with new items within the vector. [doc]

• replace_n: Replace the first count n old elements with new elements in the vector. [doc]

• shuffle: Returns a vector of shuffled values. [doc]

• some_match: Returns true if any element of the collection pass the predicate function check. [doc]

• union: Creates a vector of unique elements between all collections. [doc]

• union_by: Creates a vector of unique elements between two collections. it accepts iteratee which is invoked for each element of each collection to generate the criterion by which uniqueness is computed. [doc]

• unique: Remove duplicate elements in collection(array, vector), use PartialEq equality comparisons. [doc]

• unique_by: Calls a provided custom comparator with element of collection, returns a vector of unique element. [doc]

2. Eventbus implements a simple pub/sub event lib.index

use rufl::eventbus;

• Event: An event is a struct that can hold any data type. It is then published to the event bus. Once published, the event is then passed to each subscriber when the event bus runs. [doc]

• EventBus: The event bus is a central hub for all events. It is responsible for managing all subscribers and publishing events related to the event bus. [doc]

3. File mod contains several utility functions for handling file operation.index

use rufl::file;

• clear: Clear file content. [doc]

• copy_dirs: Copys all directories in src path to dst path. [doc]

• create: Creates a file in path and returns it. [doc]

• file_names: Returns all file names of specific directory path. [doc]

• get_md5: Gets the md5 value of file. [doc]

• is_symlink: Checks if file is symbol link file. [doc]

• read_to_buffer: Reads file to buffer byte array. [doc]

• read_to_lines: Reads file and returns lines string vector. [doc]

• read_to_string: Reads file to string. [doc]

• write_to: Write data to file, if file isn’t exist, create it. [doc]

4. Math mod contains several utility functions for handling mathematical calculations.index

use rufl::math;

• abs: Returns the absolute value of number n. [doc]

• average: Calculats the average value of number vector. [doc]

• factorial: Calculats the factorial value of number n. [doc]

• fib_nth: Calculates the nth value of fibonacci number sequence. [doc]

• fib_seq: Returns fibonacci number sequence. [doc]

• fib_sum: Calculates the sum value of fibonacci number sequence. [doc]

• gcd: Returns greatest common divisor (GCD) of integers. [doc]

• harmonic: Calculates harmonic value number n. [doc]

• is_prime: Checks if number is prime or not. [doc]

• lcm: Return least common multiple (lcm) of integers. [doc]

• percent: Calculates percentage. [doc]

• round: Round off n decimal places to number. [doc]

• round_down: Round down and truncate off n decimal places to number. [doc]

• round_up: Round up and truncate off n decimal places to number. [doc]

• sqrt: Calculates square root of float number n. [doc]

• sum: Calculats the sum of number vector. [doc]

• to_angle: Converts radian value to angle value. [doc]

• to_radian: Converts angle value to radian value. [doc]

• truncate: Truncate number to n decimal places after decimal point. [doc]

5. Random mod contains several utility functions for generating random number or string.index

use rufl::random;

• alpha_number: Generate random alphabetic or numberic string. [doc]

• alphabet: Generate random alphabetic string. [doc]

• lower: Generate random lower case English letter string. [doc]

• numberic: Generate random numberic string. [doc]

• symbol: Generate random string which only contains special chars (!@#$%^&*()_+-=[]{}|;’:",./<>?). [doc]

• string: Generate random string. (all kinds chars: alphabet, number, symbol). [doc]

• upper: Generate random upper case English letter string. [doc]

6. String mod contains several utility functions for handling string.index

use rufl::string;

• add_commas: Add comma to a number value by every 3 numbers from right. Ahead by prefix symbol. [doc]

• after: Returns the substring after the first occurrence of a specified substr in the source string. [doc]

• after_last: Returns the substring after the last occurrence of a specified substr in the source string. [doc]

• before: Returns the substring before the first occurrence of a specified substr in the source string. [doc]

• before_last: Returns the substring before the last occurrence of a specified substr in the source string. [doc]

• camel_case: Converts string to camel case.[doc]

• capitalize: Converts the first character of string to upper case and the remaining to lower case.[doc]

• count_by: Counts the characters in target string with predicate function, returns the number of all matched characters. [doc]

• count_chars: Returns the characters count in target string. [doc]

• count_graphemes: Returns the graphemes count in target string. [doc]

• count_words: Returns the word count in target string. [doc]

• cut: Cut searches for the substring ‘sep’ in the source string, and splits the source string into two parts at the first occurrence of the substring ‘sep’: before and after. [doc]

• hide: Hides some chars in source string and replace with speicfic substring. [doc]

• index: Searches a string and returns the index of the first occurrence of the specified searched substring. [doc]

• index_all: Searches a string and returns all the indexs of the occurrence of the specified searched substring. [doc]

• is_alpha: Checks if the string contains only alphabetic characters. [doc]

• is_alphanumberic: Checks if the string contains only alphabetic or numeric characters. [doc]

• is_digit: Checks if the string contains only digit characters.(0-9) [doc]

• is_dns: Checks if the string is a valid domain name. [doc]

• is_email: Checks if the string is a valid email address. [doc]

• is_ipv4: Checks if the string is a valid ipv4 address. [doc]

• is_ipv6: Checks if the string is a valid ipv6 address. [doc]

• is_lowercase: Checks if the string contains only lowercase unicode characters. [doc]

• is_numberic: Checks if the string numeric (can be parsed to number). [doc]

• is_strong_password: Checks if the string is a strong password. [doc]

• is_uppercase: Checks if the string contains only uppercase unicode characters. [doc]

• is_url: Checks if the string is a valid url. [doc]

• kebab_case: Converts string to kebab case. [doc]

• last_index: Searches a string and returns the index of the last occurrence of the specified searched substring. [doc]

• lower_first: Converts the first character of string to lower case. [doc]

• pad: Pads string on the left and right sides if it’s shorter than length. Padding characters are truncated if they can’t be evenly divided by length. [doc]

• pad_end: Pads string on the right side if it’s shorter than length. Padding str are truncated if they exceed length. [doc]

• pad_start: Pads string on the left side if it’s shorter than length. Padding str are truncated if they exceed length. [doc]

• pascal_case: Converts string to pascal case. [doc]

• remove_all: Removes all the specified substring which occurrence in the source string. [doc]

• remove_first: Removes the specified substring which first occurrence in the source string. [doc]

• remove_last: Removes the specified substring which last occurrence in the source string. [doc]

• removen: Removes first n matches substr in the source string. [doc]

• snake_case: Converts string to snake case. [doc]

• split_chars: Split the input string into a vector of characters. [doc]

• split_graphemes: Split the target string into a vector of graphemes str. [doc]

• split_words: Split the input string into a vector of its words (based on the position of capital letters or numbers). [doc]

• starts_with_offset: Checks whether a string starts with the specified prefix at offset position. [doc]

• substring: Returns the part of target string from the start index up to and excluding the end index. [doc]

• title_case: Converts string to title case. [doc]

• upper_first: Converts the first character of string to upper case. [doc]

How to Contribute

Contributing Guide