Reports:Tasks not implemented in OoRexx
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Contents
Not implemented[edit]
These are currently not implemented in OoRexx. Please implement some if you can. If any tasks are not possible or too complex in OoRexx, they should not be on this list. To mark a task as such, add {{omit from|OoRexx}}, preserving the capitalization of the language, to that task. It will appear below under the "Not Considered" section.
A
- ABC Problem
- AKS test for primes
- AVL tree
- Abbreviations, automatic
- Abbreviations, easy
- Abbreviations, simple
- Abelian sandpile model
- Abundant, deficient and perfect number classifications
- Abundant odd numbers
- Active Directory/Connect
- Aliquot sequence classifications
- Almost prime
- Amb
- Amicable pairs
- Angle difference between two bearings
- Angles (geometric), normalization and conversion
- Animation
- Anonymous recursion
- Anti-primes
- Append a record to the end of a text file
- Approximate Equality
- Archimedean spiral
- Arithmetic-geometric mean/Calculate Pi
- Arithmetic/Integer
- Assertions
- Atomic updates
- Attractive numbers
- Average loop length
B
- Babbage problem
- Balanced ternary
- Barnsley fern
- Base64 decode data
- Benford's law
- Bernoulli numbers
- Best shuffle
- Binary digits
- Binary strings
- Bitcoin/address validation
- Bitcoin/public point to address
- Bitmap
- Bitmap/Bresenham's line algorithm
- Bitmap/Bézier curves/Cubic
- Bitmap/Bézier curves/Quadratic
- Bitmap/Flood fill
- Bitmap/Histogram
- Bitmap/Midpoint circle algorithm
- Bitmap/PPM conversion through a pipe
- Bitmap/Read a PPM file
- Bitmap/Read an image through a pipe
- Bitmap/Write a PPM file
- Bitwise IO
- Brace expansion
- Break OO privacy
- Brownian tree
- Bulls and cows/Player
C
- CSV data manipulation
- CSV to HTML translation
- CUSIP
- Caesar cipher
- Calculating the value of e
- Calendar
- Calendar - for "REAL" programmers
- Call a foreign-language function
- Call a function
- Call a function in a shared library
- Canny edge detector
- Cantor set
- Carmichael 3 strong pseudoprimes
- Cartesian product of two or more lists
- Case-sensitivity of identifiers
- Casting out nines
- Catalan numbers/Pascal's triangle
- Catamorphism
- Catmull–Clark subdivision surface
- Chaocipher
- Chaos game
- Character codes
- Chat server
- Checkpoint synchronization
- Chinese remainder theorem
- Chinese zodiac
- Chowla numbers
- Church Numerals
- Closest-pair problem
- Closures/Value capture
- Color of a screen pixel
- Color quantization
- Colour bars/Display
- Colour pinstripe/Display
- Colour pinstripe/Printer
- Combinations
- Combinations and permutations
- Combinations with repetitions
- Comma quibbling
- Command-line arguments
- Commatizing numbers
- Compare sorting algorithms' performance
- Compile-time calculation
- Compiler/AST interpreter
- Compiler/code generator
- Compiler/lexical analyzer
- Compiler/syntax analyzer
- Compiler/virtual machine interpreter
- Conjugate transpose
- Constrained random points on a circle
- Continued fraction
- Continued fraction/Arithmetic/Construct from rational number
- Convert decimal number to rational
- Convert seconds to compound duration
- Convex hull
- Count in factors
- Count in octal
- Count the coins
- Cramer's rule
- Create a file
- Create a file on magnetic tape
- Create an HTML table
- Create an object at a given address
- Cuban primes
- Currency
- Currying
- Cut a rectangle
D
- DNS query
- Date format
- De Bruijn sequences
- Deal cards for FreeCell
- Death Star
- Deconvolution/1D
- Deconvolution/2D+
- Deepcopy
- Deming's Funnel
- Department Numbers
- Determinant and permanent
- Determine if a string has all the same characters
- Determine if a string has all unique characters
- Determine if a string is collapsible
- Determine if a string is numeric
- Determine if a string is squeezable
- Determine if only one instance is running
- Digital root
- Digital root/Multiplicative digital root
- Dijkstra's algorithm
- Dinesman's multiple-dwelling problem
- Dining philosophers
- Discordian date
- Distributed programming
- Documentation
- Dot product
- Doubly-linked list/Definition
- Doubly-linked list/Element definition
- Doubly-linked list/Element insertion
- Doubly-linked list/Traversal
- Dragon curve
- Draw a cuboid
- Draw a pixel
- Draw a rotating cube
- Draw a sphere
- Dutch national flag problem
- Dynamic variable names
E
- EKG sequence convergence
- Eban numbers
- Echo server
- Eertree
- Egyptian division
- Egyptian fractions
- Element-wise operations
- Elementary cellular automaton
- Emirp primes
- Empty program
- Enforced immutability
- Entropy/Narcissist
- Enumerations
- Environment variables
- Equilibrium index
- Euler's identity
- Euler's sum of powers conjecture
- Euler method
- Evaluate binomial coefficients
- Even or odd
- Events
- Exceptions
- Exceptions/Catch an exception thrown in a nested call
- Executable library
- Execute Brain****
- Execute HQ9+
- Execute SNUSP
- Execute a Markov algorithm
- Execute a system command
- Exponentiation operator
- Exponentiation order
- Extend your language
- Extensible prime generator
- Extreme floating point values
F
- FASTA format
- FTP
- Factorial
- Factorial base numbers indexing permutations of a collection
- Factors of a Mersenne number
- Factors of an integer
- Farey sequence
- Fibonacci n-step number sequences
- Fibonacci sequence
- Fibonacci word/fractal
- File extension is in extensions list
- File input/output
- File modification time
- Find common directory path
- Find largest left truncatable prime in a given base
- Find palindromic numbers in both binary and ternary bases
- Find the intersection of two lines
- Find the last Sunday of each month
- Find the missing permutation
- First-class functions
- First-class functions/Use numbers analogously
- First class environments
- First perfect square in base N with N unique digits
- Five weekends
- Fixed length records
- FizzBuzz
- Flipping bits game
- Flow-control structures
- Floyd's triangle
- Floyd-Warshall algorithm
- Forest fire
- Formal power series
- Formatted numeric output
- Forward difference
- Four bit adder
- Four is magic
- Four is the number of letters in the ...
- Fractal tree
- Fraction reduction
- Fractran
- Function composition
- Function frequency
- Function prototype
- Functional coverage tree
- Fusc sequence
G
- GUI/Maximum window dimensions
- GUI component interaction
- GUI enabling/disabling of controls
- Galton box animation
- Gamma function
- Gapful numbers
- Gaussian elimination
- General FizzBuzz
- Generate Chess960 starting position
- Generate lower case ASCII alphabet
- Generate random chess position
- Generator/Exponential
- Generic swap
- Globally replace text in several files
- Go Fish
- Gray code
- Grayscale image
- Greatest common divisor
- Greatest subsequential sum
- Greyscale bars/Display
- Guess the number
- Guess the number/With feedback (player)
H
- HTTPS
- HTTPS/Authenticated
- HTTPS/Client-authenticated
- Hamming numbers
- Handle a signal
- Hash join
- Hello world/Graphical
- Hello world/Line printer
- Hello world/Newbie
- Hello world/Newline omission
- Hello world/Web server
- Here document
- Hickerson series of almost integers
- Hilbert curve
- History variables
- Hofstadter-Conway $10,000 sequence
- Hofstadter Figure-Figure sequences
- Hofstadter Q sequence
- Holidays related to Easter
- Honeycombs
- Host introspection
- Hough transform
- Huffman coding
- Humble numbers
- Hunt The Wumpus
I
- IBAN
- I before E except after C
- Idiomatically determine all the lowercase and uppercase letters
- Image convolution
- Image noise
- Imaginary base numbers
- Index finite lists of positive integers
- Infinity
- Input loop
- Integer comparison
- Integer overflow
- Integer sequence
- Intersecting Number Wheels
- Introspection
- Inverted index
- Inverted syntax
- Iterated digits squaring
J
K
- K-d tree
- K-means++ clustering
- Kaprekar numbers
- Kernighans large earthquake problem
- Keyboard input/Flush the keyboard buffer
- Keyboard input/Keypress check
- Keyboard input/Obtain a Y or N response
- Keyboard macros
- Knapsack problem/0-1
- Knapsack problem/Bounded
- Knapsack problem/Unbounded
- Knight's tour
- Knuth's algorithm S
- Knuth's power tree
- Knuth shuffle
- Koch curve
- Kolakoski sequence
- Kosaraju
- Kronecker product
- Kronecker product based fractals
L
- LU decomposition
- LZW compression
- Lah numbers
- Langton's ant
- Largest int from concatenated ints
- Largest number divisible by its digits
- Last Friday of each month
- Latin Squares in reduced form
- Law of cosines - triples
- Left factorials
- Leonardo numbers
- Letter frequency
- Linear congruential generator
- List comprehensions
- Literals/Floating point
- Literals/Integer
- Literals/String
- Logical operations
- Long multiplication
- Long primes
- Longest Common Substring
- Longest common subsequence
- Longest increasing subsequence
- Longest string challenge
- Look-and-say sequence
- Loops/Continue
- Loops/Do-while
- Loops/Downward for
- Loops/For
- Loops/For with a specified step
- Loops/Increment loop index within loop body
- Loops/Infinite
- Loops/N plus one half
- Loops/While
- Loops/Wrong ranges
- Loops/with multiple ranges
- Lucas-Lehmer test
- Lucky and even lucky numbers
- Ludic numbers
- Luhn test of credit card numbers
- Lychrel numbers
M
- MAC Vendor Lookup
- MD4
- MD5
- Machine code
- Mad Libs
- Magic squares of doubly even order
- Magic squares of odd order
- Magic squares of singly even order
- Main step of GOST 28147-89
- Make directory path
- Man or boy test
- Mandelbrot set
- Map range
- Mastermind
- Matrix-exponentiation operator
- Matrix Digital Rain
- Matrix chain multiplication
- Matrix multiplication
- Matrix transposition
- Maximum triangle path sum
- Mayan numerals
- Maze generation
- Maze solving
- McNuggets Problem
- Median filter
- Memory allocation
- Memory layout of a data structure
- Menu
- Metaprogramming
- Metered concurrency
- Metronome
- Mian-Chowla sequence
- Middle three digits
- Miller–Rabin primality test
- Mind boggling card trick
- Minesweeper game
- Modular inverse
- Monte Carlo methods
- Monty Hall problem
- Morse code
- Mouse position
- Move-to-front algorithm
- Multi-dimensional array
- Multifactorial
- Multiple regression
- Multiplication tables
- Multiplicative order
- Multisplit
- Munchausen numbers
- Munching squares
- Mutual recursion
N
- N'th
- N-queens problem
- N-smooth numbers
- Named parameters
- Naming conventions
- Narcissist
- Narcissistic decimal number
- Natural sorting
- Nested function
- Nested templated data
- Nim Game
- Non-continuous subsequences
- Non-decimal radices/Convert
- Non-decimal radices/Input
- Non-decimal radices/Output
- Nonoblock
- Nonogram solver
- Nth root
- Number names
- Number reversal game
- Numeric error propagation
- Numerical and alphabetical suffixes
- Numerical integration
O
P
- P-value correction
- Palindrome detection
- Pangram checker
- Paraffins
- Parallel Brute Force
- Parametric polymorphism
- Parametrized SQL statement
- Parse an IP Address
- Parsing/RPN to infix conversion
- Parsing/Shunting-yard algorithm
- Partial function application
- Partition an integer X into N primes
- Pascal's triangle
- Pascal's triangle/Puzzle
- Pascal matrix generation
- Pathological floating point problems
- Pattern matching
- Peaceful chess queen armies
- Peano curve
- Pell's equation
- Penney's game
- Percentage difference between images
- Percolation/Bond percolation
- Percolation/Mean cluster density
- Percolation/Mean run density
- Percolation/Site percolation
- Perfect shuffle
- Perfect totient numbers
- Permutation test
- Permutations
- Permutations/Derangements
- Permutations/Rank of a permutation
- Permutations by swapping
- Pernicious numbers
- Phrase reversals
- Pi
- Pick random element
- Pig the dice game
- Pig the dice game/Player
- Pinstripe/Display
- Pinstripe/Printer
- Plasma effect
- Play recorded sounds
- Playing cards
- Plot coordinate pairs
- Poker hand analyser
- Polynomial long division
- Polynomial regression
- Polyspiral
- Population count
- Power set
- Pragmatic directives
- Price fraction
- Primality by trial division
- Prime conspiracy
- Prime decomposition
- Primes - allocate descendants to their ancestors
- Primorial numbers
- Priority queue
- Probabilistic choice
- Problem of Apollonius
- Program name
- Program termination
- Proper divisors
- Pythagoras tree
- Pythagorean quadruples
- Pythagorean triples
R
- RCRPG
- RIPEMD-160
- RPG Attributes Generator
- RSA code
- Ramer-Douglas-Peucker line simplification
- Random number generator (device)
- Random number generator (included)
- Range consolidation
- Ranking methods
- Rare numbers
- Rate counter
- Ray-casting algorithm
- Read a file line by line
- Read a specific line from a file
- Recaman's sequence
- Record sound
- Reduced row echelon form
- Reflection/Get source
- Reflection/List methods
- Remove lines from a file
- Rename a file
- Rendezvous
- Rep-string
- Repeat a string
- Resistor mesh
- Retrieve and search chat history
- Reverse a string
- Reverse words in a string
- Rock-paper-scissors
- Roman numerals/Decode
- Roman numerals/Encode
- Roots of a quadratic function
- Rosetta Code/Count examples
- Rosetta Code/Find bare lang tags
- Rosetta Code/Find unimplemented tasks
- Rosetta Code/Fix code tags
- Rot-13
- Run-length encoding
- Runge-Kutta method
S
- S-Expressions
- SEDOLs
- SHA-1
- SHA-256
- SOAP
- SQL-based authentication
- Safe addition
- Safe primes and unsafe primes
- Sailors, coconuts and a monkey problem
- Same Fringe
- Scope/Function names and labels
- Scope modifiers
- Search a list of records
- Secure temporary file
- Self-referential sequence
- Semiprime
- Semordnilap
- Send an unknown method call
- Send email
- Sequence: nth number with exactly n divisors
- Sequence: smallest number greater than previous term with exactly n divisors
- Sequence: smallest number with exactly n divisors
- Sequence of non-squares
- Sequence of primes by trial division
- Sequence of primorial primes
- Set of real numbers
- Set puzzle
- Seven-sided dice from five-sided dice
- Sexy primes
- Shoelace formula for polygonal area
- Shortest common supersequence
- Show Ascii table
- Show the epoch
- Sierpinski carpet
- Sierpinski pentagon
- Sierpinski triangle
- Sierpinski triangle/Graphical
- Sieve of Eratosthenes
- Simple database
- Simulate input/Keyboard
- Simulate input/Mouse
- Smarandache prime-digital sequence
- Smith numbers
- Sockets
- Sokoban
- Solve a Hidato puzzle
- Solve a Holy Knight's tour
- Solve a Hopido puzzle
- Solve a Numbrix puzzle
- Solve the no connection puzzle
- Sort a list of object identifiers
- Sort numbers lexicographically
- Sort three variables
- Sorting algorithms/Bogosort
- Sorting algorithms/Comb sort
- Sorting algorithms/Counting sort
- Sorting algorithms/Heapsort
- Sorting algorithms/Merge sort
- Sorting algorithms/Pancake sort
- Sorting algorithms/Patience sort
- Sorting algorithms/Permutation sort
- Sorting algorithms/Radix sort
- Sorting algorithms/Sleep sort
- Sorting algorithms/Strand sort
- Soundex
- Sparkline in unicode
- Special characters
- Special variables
- Speech synthesis
- Spelling of ordinal numbers
- Spinning rod animation/Text
- Square-free integers
- Square but not cube
- Stable marriage problem
- Stack traces
- Stair-climbing puzzle
- Start from a main routine
- State name puzzle
- Statistics/Basic
- Statistics/Normal distribution
- Stem-and-leaf plot
- Stern-Brocot sequence
- Straddling checkerboard
- Stream Merge
- String append
- String case
- String concatenation
- String interpolation (included)
- String length
- String matching
- String prepend
- Strip a set of characters from a string
- Strip block comments
- Strip comments from a string
- Strip control codes and extended characters from a string
- Strip whitespace from a string/Top and tail
- Strong and weak primes
- Substring
- Substring/Top and tail
- Subtractive generator
- Successive prime differences
- Sudoku
- Suffixation of decimal numbers
- Sum digits of an integer
- Sum multiples of 3 and 5
- Sum of a series
- Sum of squares
- Sum to 100
- Sunflower fractal
- Super-d numbers
- Superpermutation minimisation
- Sutherland-Hodgman polygon clipping
- System time
T
- Take notes on the command line
- Tarjan
- Taxicab numbers
- Temperature conversion
- Terminal control/Clear the screen
- Terminal control/Cursor movement
- Terminal control/Cursor positioning
- Terminal control/Dimensions
- Terminal control/Display an extended character
- Terminal control/Hiding the cursor
- Terminal control/Inverse video
- Terminal control/Positional read
- Terminal control/Preserve screen
- Terminal control/Ringing the terminal bell
- Terminal control/Unicode output
- Test a function
- Text processing/1
- Text processing/2
- Text processing/Max licenses in use
- Textonyms
- The ISAAC Cipher
- The Name Game
- The Twelve Days of Christmas
- Thiele's interpolation formula
- Thue-Morse
- Tic-tac-toe
- Time a function
- Tokenize a string with escaping
- Tonelli-Shanks algorithm
- Top rank per group
- Topic variable
- Topological sort
- Topswops
- Total circles area
- Totient function
- Towers of Hanoi
- Trabb Pardo–Knuth algorithm
- Truncate a file
- Truth table
- Twelve statements
U
V
- Validate International Securities Identification Number
- Vampire number
- Van Eck sequence
- Van der Corput sequence
- Variable-length quantity
- Variadic function
- Verify distribution uniformity/Chi-squared test
- Verify distribution uniformity/Naive
- Video display modes
- Vigenère cipher/Cryptanalysis
- Visualize a tree
- Vogel's approximation method
- Voronoi diagram
W
- Walk a directory/Non-recursively
- Water collected between towers
- Weird numbers
- Window creation
- Window creation/X11
- Window management
- Wireworld
- Word frequency
- Word search
- Word wrap
- World Cup group stage
- Write entire file
- Write float arrays to a text file
- Write language name in 3D ASCII
- Write to Windows event log
Draft tasks without implementation[edit]
These tasks are drafts, meaning they largely need more work to turn them into full tasks. Perhaps you can help by trying to implement them in OoRexx (after all, one of the key requirements for a task being non-draft is multiple implementations, preferably in widely different languages) but be aware that this may be difficult because of lack of definition of the task itself.
2
A
B
C
- Card shuffles
- Chebyshev coefficients
- Check input device is a terminal
- Check output device is a terminal
- Checksumcolor
- Chemical Calculator
- Chernick's Carmichael numbers
- Cheryl's Birthday
- Chess player
- Chess player/Move generation
- Chess player/Program options and user interface
- Chess player/Search and evaluation
- Cipolla's algorithm
- Code segment unload
- Color wheel
- Combinations with repetitions/Square Digit Chain
- Continued fraction/Arithmetic/G(matrix NG, Contined Fraction N)
- Continued fraction/Arithmetic/G(matrix NG, Contined Fraction N1, Contined Fraction N2)
- Copy stdin to stdout
- Create an object/Native demonstration
- Curve that touches three points
D
E
F
- Faces from a mesh
- Factorions
- Faulhaber's formula
- Faulhaber's triangle
- Feigenbaum constant calculation
- Fermat numbers
- Fibonacci heap
- File size distribution
- Find URI in text
- Find duplicate files
- Find first and last set bit of a long integer
- Find the intersection of a line with a plane
- Finite state machine
- Free polyominoes enumeration
- French Republican calendar
G
H
I
L
M
- Make a backup file
- Markov chain text generator
- Mayan calendar
- Mersenne primes
- Metallic ratios
- Modular arithmetic
- Modulinos
- Monads/List monad
- Monads/Maybe monad
- Monads/Writer monad
- Montgomery reduction
- Morpion solitaire
- Most frequent k chars distance
- Multidimensional Newton-Raphson method
- Multiline shebang
N
P
- Palindromic gapful numbers
- Parse EBNF
- Parse command-line arguments
- Penrose tiling
- Pentomino tiling
- Perceptron
- Perlin noise
- Permutations with repetitions
- Permutations with some identical elements
- Pierpont primes
- Polynomial synthetic division
- Print debugging statement
- Process SMIL directives in XML data
- Proof
R
- Railway circuit
- Ramanujan's constant
- Ramsey's theorem
- Random Latin Squares
- Raster bars
- Read a file character by character/UTF8
- Readline interface
- Recursive descent parser generator
- Reflection/List methods
- Remote agent/Agent interface
- Remote agent/Agent logic
- Remote agent/Simulation
- Repeat
- Resistance Calculator
- Resistance Network Calculator
- Reverse the gender of a string
- Robots
- Rosetta Code/List authors of task descriptions
- Rosetta Code/Rank languages by number of users
- Rosetta Code/Run examples
- Rosetta Code/Tasks sorted by average lines of code
- Rosetta Code/Tasks without examples
- Run as a daemon or service
S
- Safe mode
- Sattolo cycle
- Self-hosting compiler
- Separate the house number from the street name
- Simulated annealing
- Sine wave
- Singly-linked list/Element removal
- Snake
- Snake And Ladder
- Solve a Rubik's Cube
- Solving coin problems
- Sorting Algorithms/Circle Sort
- Sorting algorithms/Tree sort on a linked list
- Spoof game
- Starting a web browser
- Stirling numbers of the first kind
- Stirling numbers of the second kind
- Subset sum problem
- Substitution Cipher
- Suffix tree
- Sum data type
T
- Table creation
- Tamagotchi emulator
- Teacup rim text
- Terminal control/Restricted width positional input/No wrapping
- Terminal control/Restricted width positional input/With wrapping
- Tetris
- Text between
- Text to HTML
- Time-based One-time Password Algorithm
- Topological sort/Extracted top item
- Transportation problem
- Tree datastructures
- Type detection
U
W
Requiring Attention[edit]
Examples[edit]
These tasks have implementations in OoRexx, but somebody, somewhere, decided that the example implementation was faulty or in some other way requiring attention. If you're familiar with the task and language, please consider reviewing/correcting the example and removing the notice.
No pages found.
Other pages[edit]
These are other pages related to OoRexx which require attention; with your knowledge and assistance, we can improve the quality of the site's content.
Not Considered[edit]
These tasks are not generally counted toward "unimplemented", as somebody, somewhere, decided that OoRexx was inappropriate for these tasks, or implementations of them would be unenlightening. Feel free to try your hand at them anyway.
No pages found.
End of List[edit]
Again, feel free to try your hand at any of the tasks listed on this page.