This programming language may be used to instruct a computer to perform a task.
| Official website |
|---|
| Execution method: | Interpreted |
|---|---|
| Garbage collected: | Yes |
| Type checking: | Dynamic |
| See Also: |
|
Your Help Needed
If you know PicoLisp, please write code for some of the tasks not implemented in PicoLisp.
If you know PicoLisp, please write code for some of the tasks not implemented in PicoLisp.
PicoLisp is an implementation of Lisp.
Other implementations of Lisp.
PicoLisp is a small and fast interpreted Lisp dialect. It runs on Linux and other POSIX-compliant systems, and - in a reduced version - on JVM.
Its most prominent feature is "simplicity". It is built on top of a single internal data type (the cell), without giving up flexibility and expressive power. On the language level, it supports just three data types (numbers, symbols and lists), constructed from internal cells.
PicoLisp programs are often more succinct - and at the same time faster - than those of other interpreted languages. A special feature is the intrinsic database functionality: Persistent symbols are first-class objects, and applications are written using a class hierarchy of entities and relations.
Other features include a Prolog engine for logic programming and database queries, distributed databases, inlining of C/asm functions and native C/asm function calls, child process management, interprocess communication, Browser GUI, Internationalization and localization.
To try the RosettaCode tasks, download pil21.tgz, unpack it, and follow the instructions in README and INSTALL. Unless stated otherwise, the examples assume that the interpreter was started with the command$ pil +
:
(i.e. with a '+' for "debug mode", as recommended in the documentation. Note: Do not call just the 'picolisp' binary, this is only the bare kernel of PicoLisp)
See Also[edit]
Todo[edit]
Reports:Tasks_not_implemented_in_PicoLisp
Subcategories
This category has the following 3 subcategories, out of 3 total.
Pages in category "PicoLisp"
The following 845 pages are in this category, out of 845 total.
A
- A+B
- ABC problem
- Abstract type
- Abundant odd numbers
- Abundant, deficient and perfect number classifications
- Accumulator factory
- Ackermann function
- Active Directory/Connect
- Active Directory/Search for a user
- Active object
- Add a variable to a class instance at runtime
- Additive primes
- Address of a variable
- AKS test for primes
- Algebraic data types
- Align columns
- Almkvist-Giullera formula for pi
- Almost prime
- Amb
- Amicable pairs
- Anagrams
- Anagrams/Deranged anagrams
- Animate a pendulum
- Animation
- Anonymous recursion
- Anti-primes
- Append a record to the end of a text file
- Apply a callback to an array
- Arbitrary-precision integers (included)
- Arena storage pool
- Arithmetic evaluation
- Arithmetic-geometric mean
- Arithmetic-geometric mean/Calculate Pi
- Arithmetic/Complex
- Arithmetic/Integer
- Arithmetic/Rational
- Array concatenation
- Array length
- Arrays
- Ascending primes
- Assertions
- Associative array/Creation
- Associative array/Iteration
- Atomic updates
- Average loop length
- Averages/Arithmetic mean
- Averages/Mean angle
- Averages/Mean time of day
- Averages/Median
- Averages/Mode
- Averages/Pythagorean means
- Averages/Root mean square
- Averages/Simple moving average
B
- Babbage problem
- Balanced brackets
- Balanced ternary
- Barnsley fern
- Base58Check encoding
- Base64 decode data
- Base64 encode data
- Bell numbers
- Benford's law
- Bernoulli numbers
- Best shuffle
- Binary digits
- Binary search
- Binary strings
- Bioinformatics/base count
- 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
- Bitwise operations
- Boolean values
- Box the compass
- Brace expansion
- Break OO privacy
- Brownian tree
- Bulls and cows
- Bulls and cows/Player
C
- 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
- Call an object method
- Canonicalize CIDR
- Card shuffles
- Carmichael 3 strong pseudoprimes
- Cartesian product of two or more lists
- Case-sensitivity of identifiers
- Casting out nines
- Catalan numbers
- Catalan numbers/Pascal's triangle
- Catamorphism
- Character codes
- Chat server
- Check that file exists
- Checkpoint synchronization
- Checksumcolor
- Chess player
- Chinese remainder theorem
- Cholesky decomposition
- Chowla numbers
- Cipolla's algorithm
- Circular primes
- Classes
- Closest-pair problem
- Closures/Value capture
- Collections
- Color of a screen pixel
- Colour bars/Display
- Colour pinstripe/Display
- Colour pinstripe/Printer
- Combinations
- Combinations with repetitions
- Comma quibbling
- Command-line arguments
- Comments
- Compare a list of strings
- Compile-time calculation
- Compound data type
- Concurrent computing
- Conditional structures
- Constrained genericity
- Constrained random points on a circle
- Continued fraction
- Convert seconds to compound duration
- Conway's Game of Life
- Copy a string
- Copy stdin to stdout
- Count in factors
- Count in octal
- Count occurrences of a substring
- Count the coins
- CRC-32
- Create a file
- Create a file on magnetic tape
- Create a two-dimensional array at runtime
- Create an HTML table
- Create an object at a given address
- CSV data manipulation
- CSV to HTML translation
- Cumulative standard deviation
- Currency
- Currying
- CUSIP
D
- Damm algorithm
- Data Encryption Standard
- Date format
- Date manipulation
- Day of the week
- Days between dates
- Deal cards for FreeCell
- Decision tables
- Deconvolution/1D
- Deepcopy
- Define a primitive data type
- Delegates
- Delete a file
- Department numbers
- Detect division by zero
- Determine if a string has all the same characters
- Determine if a string has all unique characters
- Determine if a string is numeric
- Determine if only one instance is running
- Digit fifth powers
- Digital root
- Digital root/Multiplicative digital root
- Dijkstra's algorithm
- Dinesman's multiple-dwelling problem
- Dining philosophers
- Discordian date
- Distributed programming
- DNS query
- 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 clock
- Draw a cuboid
- Draw a sphere
- Dutch national flag problem
- Dynamic variable names
E
- Eban numbers
- Echo server
- Egyptian division
- Element-wise operations
- Elementary cellular automaton
- Elliptic curve arithmetic
- Emirp primes
- Empty directory
- Empty program
- Empty string
- Enforced immutability
- Entropy
- Entropy/Narcissist
- Enumerations
- Environment variables
- Equilibrium index
- Esthetic numbers
- Ethiopian multiplication
- Euler method
- Euler's sum of powers conjecture
- Evaluate binomial coefficients
- Even or odd
- Events
- Evolutionary algorithm
- Exceptions
- Exceptions/Catch an exception thrown in a nested call
- Executable library
- Execute a Markov algorithm
- Execute a system command
- Execute Brain****
- Execute HQ9+
- Execute SNUSP
- Exponentiation operator
- Exponentiation order
- Extend your language
- Extensible prime generator
- Extract file extension
- Extreme floating point values
F
- Factorial
- Factors of a Mersenne number
- Factors of an integer
- Fast Fourier transform
- FASTA format
- Fermat numbers
- Fibonacci n-step number sequences
- Fibonacci sequence
- File input/output
- File modification time
- File size
- Filter
- Find common directory path
- Find duplicate files
- Find first and last set bit of a long integer
- Find limit of recursion
- Find palindromic numbers in both binary and ternary bases
- Find the last Sunday of each month
- Find the missing permutation
- Finite state machine
- First class environments
- First-class functions
- First-class functions/Use numbers analogously
- Five weekends
- Fivenum
- FizzBuzz
- Flatten a list
- Flow-control structures
- Floyd's triangle
- Forest fire
- Fork
- Formal power series
- Formatted numeric output
- Forward difference
- Four bit adder
- Fractal tree
- FTP
- Function composition
- Function definition
- Function frequency
G
- Galton box animation
- Gamma function
- General FizzBuzz
- Generate Chess960 starting position
- Generate lower case ASCII alphabet
- Generate random chess position
- Generator/Exponential
- Generic swap
- Geohash
- Get system command output
- Globally replace text in several files
- Go Fish
- Gray code
- Grayscale image
- Greatest common divisor
- Greatest element of a list
- Greatest subsequential sum
- Greed
- Greyscale bars/Display
- Guess the number
- Guess the number/With feedback
- Guess the number/With feedback (player)
- GUI component interaction
- GUI enabling/disabling of controls
- GUI/Maximum window dimensions
H
- Hailstone sequence
- Hamming numbers
- Handle a signal
- Happy numbers
- Harshad or Niven series
- Hash from two arrays
- Hash join
- Haversine formula
- Hello world/Graphical
- Hello world/Line printer
- Hello world/Newbie
- Hello world/Newline omission
- Hello world/Standard error
- Hello world/Text
- Hello world/Web server
- Here document
- Hickerson series of almost integers
- Higher-order functions
- History variables
- Hofstadter Figure-Figure sequences
- Hofstadter Q sequence
- Hofstadter-Conway $10,000 sequence
- Holidays related to Easter
- Horizontal sundial calculations
- Horner's rule for polynomial evaluation
- Host introspection
- Hostname
- HTTP
- HTTPS
- HTTPS/Authenticated
- HTTPS/Client-authenticated
- Huffman coding
I
- I before E except after C
- IBAN
- Identity matrix
- Image convolution
- Image noise
- Include a file
- Increment a numerical string
- Infinity
- Inheritance/Multiple
- Inheritance/Single
- Input loop
- Integer comparison
- Integer overflow
- Integer sequence
- Interactive programming (repl)
- Introspection
- Inverted index
- Inverted syntax
- IPC via named pipe
- ISBN13 check digit
- Iterated digits squaring
K
- 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/Continuous
- Knapsack problem/Unbounded
- Knight's tour
- Knuth shuffle
- Knuth's algorithm S
L
- Lah numbers
- Langton's ant
- Largest int from concatenated ints
- Last Friday of each month
- Last letter-first letter
- Leap year
- Least common multiple
- Left factorials
- Legendre prime counting function
- Leonardo numbers
- Letter frequency
- Levenshtein distance
- Linear congruential generator
- Linux CPU utilization
- List comprehensions
- Literals/Floating point
- Literals/Integer
- Literals/String
- Logical operations
- Long multiplication
- Longest common subsequence
- Longest common substring
- Longest increasing subsequence
- Longest string challenge
- Look-and-say sequence
- Loop over multiple arrays simultaneously
- Loops/Break
- Loops/Continue
- Loops/Do-while
- Loops/Downward for
- Loops/For
- Loops/For with a specified step
- Loops/Foreach
- Loops/Infinite
- Loops/N plus one half
- Loops/Nested
- Loops/While
- Lucas-Lehmer test
- Lucky and even lucky numbers
- Ludic numbers
- Luhn test of credit card numbers
- Lychrel numbers
- LZW compression
M
- Machine code
- Mad Libs
- Magic squares of odd order
- Magnanimous numbers
- Main step of GOST 28147-89
- Make a backup file
- Make directory path
- Man or boy test
- Mandelbrot set
- Map range
- Matrix multiplication
- Matrix transposition
- Matrix-exponentiation operator
- Maximum triangle path sum
- Maze generation
- Maze solving
- McNuggets problem
- MD4
- MD5
- MD5/Implementation
- Median filter
- Memory allocation
- Memory layout of a data structure
- Menu
- Mersenne primes
- Metaprogramming
- Metered concurrency
- Metronome
- Middle three digits
- Miller–Rabin primality test
- Minesweeper game
- Modular exponentiation
- Modular inverse
- Modulinos
- Monte Carlo methods
- Montgomery reduction
- Monty Hall problem
- Morse code
- Mouse position
- Move-to-front algorithm
- Multifactorial
- Multiline shebang
- Multiple distinct objects
- Multiple regression
- Multiplication tables
- Multisplit
- Munchausen numbers
- Mutex
- Mutual recursion
N
- N'th
- N-queens problem
- Named parameters
- Naming conventions
- Narcissist
- Narcissistic decimal number
- Natural sorting
- Nested function
- Non-continuous subsequences
- Non-decimal radices/Convert
- Non-decimal radices/Input
- Non-decimal radices/Output
- Nth root
- Null object
- Number names
- Number reversal game
- Numeric error propagation
- Numerical integration
O
P
- Palindrome detection
- Pangram checker
- Parallel calculations
- Parameterized SQL statement
- Parametric polymorphism
- Parse an IP Address
- Parse command-line arguments
- Parse EBNF
- Parsing/RPN calculator algorithm
- Parsing/RPN to infix conversion
- Parsing/Shunting-yard algorithm
- Partial function application
- Partition function P
- Pascal matrix generation
- Pascal's triangle
- Pascal's triangle/Puzzle
- Password generator
- Pathological floating point problems
- Penney's game
- Percentage difference between images
- Perfect numbers
- Perfect shuffle
- Perfect totient numbers
- Permutation test
- Permutations
- Permutations by swapping
- Permutations with repetitions
- Permutations/Derangements
- Pernicious numbers
- Phrase reversals
- Pi
- Pick random element
- Pinstripe/Display
- Pinstripe/Printer
- Play recorded sounds
- Playing cards
- Plot coordinate pairs
- Pointers and references
- Poker hand analyser
- Polymorphic copy
- Polymorphism
- Polynomial long division
- Population count
- Power set
- Pragmatic directives
- Price fraction
- Primality by trial division
- Prime conspiracy
- Prime decomposition
- Primorial numbers
- Priority queue
- Probabilistic choice
- Program name
- Program termination
- Proper divisors
- Pseudo-random numbers/Splitmix64
- Pseudorandom number generator image
- Pythagorean quadruples
- Pythagorean triples
R
- Random number generator (device)
- Random number generator (included)
- Random numbers
- Range expansion
- Range extraction
- Rate counter
- Ray-casting algorithm
- Read a configuration file
- Read a file character by character/UTF8
- Read a file line by line
- Read a specific line from a file
- Read entire file
- Real constants and functions
- Record sound
- Reduced row echelon form
- Reflection/List methods
- Reflection/List properties
- Regular expressions
- Remote agent/Agent interface
- Remote agent/Agent logic
- Remote agent/Simulation
- Remove duplicate elements
- Remove lines from a file
- Rename a file
- Rendezvous
- Rep-string
- Repeat
- Repeat a string
- Respond to an unknown method call
- Return multiple values
- Reverse a string
- Reverse words in a string
- RIPEMD-160
- Rock-paper-scissors
- Roman numerals/Decode
- Roman numerals/Encode
- Roots of a function
- Roots of a quadratic function
- Roots of unity
- Rosetta Code/Count examples
- Rosetta Code/Find unimplemented tasks
- Rosetta Code/Fix code tags
- Rosetta Code/Rank languages by popularity
- Rot-13
- RSA code
- Run as a daemon or service
- Run-length encoding
- Runtime evaluation
- Runtime evaluation/In an environment
S
- S-expressions
- Safe addition
- Same fringe
- Sattolo cycle
- Scope modifiers
- Search a list
- Search a list of records
- Secure temporary file
- SEDOLs
- Selective file copy
- Self-describing numbers
- Semiprime
- Semordnilap
- Send an unknown method call
- Send email
- Sequence of non-squares
- Sequence of primes by trial division
- Set
- Set consolidation
- Seven-sided dice from five-sided dice
- SHA-1
- SHA-256
- Shell one-liner
- Shift list elements to left by 3
- Short-circuit evaluation
- Show the epoch
- Sierpinski carpet
- Sierpinski triangle
- Sierpinski triangle/Graphical
- Sieve of Eratosthenes
- Simple database
- Simple windowed application
- Simulate input/Keyboard
- Simulate input/Mouse
- Singleton
- Singly-linked list/Element definition
- Singly-linked list/Element insertion
- Singly-linked list/Element removal
- Singly-linked list/Traversal
- Sleep
- Smith numbers
- Snake and ladder
- Sockets
- Sokoban
- Solve a Hidato puzzle
- Sort a list of object identifiers
- Sort an array of composite structures
- Sort an integer array
- Sort disjoint sublist
- Sort numbers lexicographically
- Sort stability
- Sort three variables
- Sort using a custom comparator
- Sorting algorithms/Bead sort
- Sorting algorithms/Bogosort
- Sorting algorithms/Bubble sort
- Sorting algorithms/Cocktail sort
- Sorting algorithms/Comb sort
- Sorting algorithms/Counting sort
- Sorting algorithms/Gnome sort
- Sorting algorithms/Heapsort
- Sorting algorithms/Insertion sort
- Sorting algorithms/Merge sort
- Sorting algorithms/Pancake sort
- Sorting algorithms/Patience sort
- Sorting algorithms/Permutation sort
- Sorting algorithms/Quicksort
- Sorting algorithms/Radix sort
- Sorting algorithms/Selection sort
- Sorting algorithms/Shell sort
- Sorting algorithms/Sleep sort
- Sorting algorithms/Stooge sort
- Sorting algorithms/Strand sort
- Soundex
- Sparkline in unicode
- Special characters
- Special variables
- Speech synthesis
- Spinning rod animation/Text
- Spiral matrix
- Split a character string based on change of character
- Stable marriage problem
- Stack
- Stack traces
- Stair-climbing puzzle
- Start from a main routine
- State name puzzle
- Statistics/Basic
- Stem-and-leaf plot
- Stern-Brocot sequence
- Straddling checkerboard
- Stream merge
- String append
- String case
- String comparison
- 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
- Subleq
- Subset sum problem
- Substitution cipher
- Substring
- Substring/Top and tail
- Subtractive generator
- Sudoku
- Sum and product of an array
- Sum digits of an integer
- Sum multiples of 3 and 5
- Sum of a series
- Sum of divisors
- Sum of squares
- Summarize and say sequence
- Symmetric difference
- Synchronous concurrency
- System time
T
- Table creation
- Table creation/Postal addresses
- Take notes on the command line
- Taxicab numbers
- Teacup rim text
- Temperature conversion
- Terminal control/Clear the screen
- Terminal control/Coloured text
- 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/Preserve screen
- Terminal control/Ringing the terminal bell
- Terminal control/Unicode output
- Ternary logic
- Test a function
- Test integerness
- Text processing/1
- Text processing/2
- Text processing/Max licenses in use
- The ISAAC cipher
- The Twelve Days of Christmas
- Thiele's interpolation formula
- Thue-Morse
- Tic-tac-toe
- Time a function
- Time-based one-time password algorithm
- Tokenize a string
- Tokenize a string with escaping
- Tonelli-Shanks algorithm
- Top rank per group
- Topic variable
- Topological sort
- Topswops
- Totient function
- Towers of Hanoi
- Trabb Pardo–Knuth algorithm
- Tree traversal
- Trigonometric functions
- Truncatable primes
- Truncate a file
- Truth table
- Two sum
- Type detection
U
- Ulam spiral (for primes)
- Unbias a random generator
- Undefined values
- Unicode strings
- Unicode variable names
- Unique characters
- Unique characters in each string
- Universal Turing machine
- Unix/ls
- UPC
- Update a configuration file
- URL decoding
- URL encoding
- URL shortener
- Use another language to call a function
- User input/Graphical
- User input/Text
V
W
- Walk a directory/Non-recursively
- Walk a directory/Recursively
- Water collected between towers
- Web scraping
- Wieferich primes
- Window creation
- Window creation/X11
- Window management
- Wireworld
- Word break problem
- Word frequency
- Word wrap
- Write entire file
- Write float arrays to a text file
- Write language name in 3D ASCII
- Write to Windows event log
