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Operations in formal language theory
the area of formal language theory, frequent use is made of a variety of string functions; however, the notation used is different from that used for computer
String_operations
Sequence of characters, data type
In computer programming, a string is traditionally a sequence of characters, either as a literal constant or as some kind of variable. The latter may allow
String_(computer_science)
Computer science metric of string similarity
different sets of like operations. Levenshtein distance operations are the removal, insertion, or substitution of a character in the string. Being the most common
Edit_distance
SIMD CPU instruction set
CPU instruction. SSE4.2 introduced new SIMD string operations, including an instruction to compare two string fragments of up to 16 bytes each. SSE4.2 is
SSE4
Memory segmentation on Intel x86
stack segment. The extra segment is the mandatory destination for string operations (for example MOVS or CMPS); for this one purpose only, the automatically
X86_memory_segmentation
Computer operation which manipulates individual bits of data
computer programming, a bitwise operation operates on a bit string, a bit array or a binary numeral (considered as a bit string) at the level of its individual
Bitwise_operation
Sequence of words formed by specific rules
intersection, and complement. Another class of operation is the element-wise application of string operations. Examples: suppose L 1 {\displaystyle L_{1}}
Formal_language
Topics referred to by the same term
that allows for a particularly fast implementation of many important string operations Prefix (disambiguation) This disambiguation page lists articles associated
Suffix_(disambiguation)
Tree containing all suffixes of a given text
particularly fast implementations of many important string operations. The construction of such a tree for the string S {\displaystyle S} takes time and space linear
Suffix_tree
Joining of strings in a programming language
In certain formalizations of concatenation theory, also called string theory, string concatenation is a primitive notion. To concatenate is to join two
Concatenation
Type of computer benchmark
browsers, which measure rendering and animation, DOM transformations, string operations, mathematical calculations, sorting algorithms, graphic performance
List of web browser performance tests
List_of_web_browser_performance_tests
Flexible structure made from fibers twisted together
String is a long flexible tool made from fibers twisted together into a single strand, or from multiple such strands which are in turn twisted together
String
Very high-level programming language
powerful when used with string operations, and is a major underlying basis for Icon's overall design. Consider the indexOf operation found in many languages;
Icon_(programming_language)
Unique string of length zero
reference points to no string at all, not even the empty string. The empty string is a legitimate string, upon which most string operations should work. Some
Empty_string
science, the string-to-string correction problem refers to determining the minimum cost sequence of edit operations necessary to change one string into another
String-to-string correction problem
String-to-string_correction_problem
Finding strings that approximately match a pattern
of primitive operations necessary to convert the string into an exact match. This number is called the edit distance between the string and the pattern
Approximate_string_matching
Theory of subatomic structure
In physics, string theory is a theoretical framework in which the point-like particles of particle physics are replaced by one-dimensional objects called
String_theory
Character strings and handling in C++
classes". The std::string class is the standard representation for a text string since C++98. The class provides some typical string operations like comparison
C++_string_handling
length of a string SETCURRENT – sets the current length of a string; e.g. setcurrent(str,length(str)-1); !! – concatenation operator String arithmetic
DG/L
JavaScript library in the functional programming paradigm
simplifying math operations. Function: simplifying binding, decorating, constraining, throttling, debouncing, currying, and changing the pointer. String: conversion
Lodash
Data structure
the string is greater than or less than the character value in the node and makes a recursive call on the appropriate node as in the lookup operation. If
Ternary_search_tree
String functions are used in computer programming languages to manipulate a string or query information about a string (some do both). Most programming
Comparison of programming languages (string functions)
Comparison_of_programming_languages_(string_functions)
Handling of strings in the C programming language
functions implementing operations on strings (character strings and byte strings) in its standard library. Various operations, such as copying, concatenation
C_string_handling
String metric for measuring edit distance
theory, linguistics, and computer science, the Levenshtein distance is a string metric for measuring the difference between two sequences. For two strings
Levenshtein_distance
Algorithm to transform a regular expression into a finite automaton
an NFA of m states and at most e transitions from each state can match a string of length n in time O(emn), a Thompson NFA can do pattern matching in linear
Thompson's_construction
Set of rules defining correctly structured programs
variety of string operations. Strings in Python are immutable, meaning that string operations, such as replacement of characters, return a new string; in other
Python_syntax_and_semantics
Functional programming construct
token sequence (i.e., search and replace). Sequence patterns (e.g., a text string) are often described using regular expressions and matched using techniques
Pattern_matching
Type of finite-state machine in automata theory
languages recognized by NFAs is closed under the following operations. These closure operations are used in Thompson's construction algorithm, which constructs
Nondeterministic finite automaton
Nondeterministic_finite_automaton
Elongated type of cheese
String cheese is any of several different types of cheese where the manufacturing process aligns the proteins in the cheese, making it stringy. When mozzarella
String_cheese
Computer benchmarking program
contains no floating point operations, thus the name is a pun on the then-popular Whetstone benchmark for floating point operations. The output from the benchmark
Dhrystone
Family of instruction set architectures
stack frame. SI/ESI/RSI: Source index for string operations. DI/EDI/RDI: Destination index for string operations. IP/EIP/RIP: Instruction pointer. Holds
X86
Property of some operation(s) in concurrent programming
In concurrent programming, an operation (or set of operations) is linearizable if it consists of an ordered list of invocation and response events, that
Linearizability
Data mining technique
Repeat-related problems: that deal with operations on single sequences and can be based on exact string matching or approximate string matching methods for finding
Sequential_pattern_mining
Type of formal grammar
non-terminal symbols, a ∈ Σ is a terminal symbol, and ε denotes the empty string, i.e. the string of length 0. S is called the start symbol. In a left-regular grammar
Regular_grammar
Algorithmic problem on pairs of sequences
Y^A) = LCS(X,Y)^A, for all strings X, Y and all symbols A, where ^ denotes string concatenation. This allows one to simplify the LCS computation for two sequences
Longest_common_subsequence
PHP open-source web application framework
Laravel Sanctum, Custom Eloquent Casts, Blade Component Tags, Fluent String Operations and Route Model Binding Improvements. Laravel 8 was released on September
Laravel
Special function called to create an object
private FName: string; public property Name: string read FName; constructor Create(AName: string); end; constructor TPerson.Create(AName: string); begin FName
Constructor (object-oriented programming)
Constructor_(object-oriented_programming)
Metric in computer science
transpositions among its allowable operations in addition to the three classical single-character edit operations (insertions, deletions and substitutions)
Damerau–Levenshtein_distance
Search tree data structure
deterministic finite automaton. Tries support various operations: insertion, deletion, and lookup of a string key. Tries are composed of nodes that contain links
Trie
Set of rules defining correctly structured programs
treats any string that contains the value of an integer as an integer in arithmetic operations, and does the same for floats. When a string starts with
PHP_syntax_and_semantics
General-purpose programming language
The ability to mark all string literals as frozen by default with a consequently large performance increase in string operations. Hash comparison to allow
Ruby_(programming_language)
Software that translates code from one programming language to another
programs to construct arbitrary source code at runtime with regular string operations, and then execute that code by passing it to a special evaluation
Compiler
Collections; var PhoneBook: TDictionary<string, string>; Entry: TPair<string, string>; begin PhoneBook := TDictionary<string, string>.Create; PhoneBook.Add('Sally
Comparison of programming languages (associative array)
Comparison_of_programming_languages_(associative_array)
Computer science problem
science, a longest common substring of two or more strings is a longest string that is a substring of all of them. There may be more than one longest common
Longest_common_substring
Comparison of two programming languages
a string generally has the type char[n]. Pascal has no support for variable-length arrays, and so any set of routines to perform string operations is
Comparison_of_Pascal_and_C
Data structure for storing strings
most rope operations require balanced trees, the tree may need to be re-balanced after concatenation. Definition: Split (i, S): split the string S into two
Rope_(data_structure)
Topics referred to by the same term
measurement Rope (data structure), a data structure used for fast string operations The Ropes, an indie rock band from New York Rope (film), 1948 film
Ropes_(disambiguation)
Data structure
to the radix of the radix trie. The lookup operation determines if a string exists in a trie. Most operations modify this approach in some way to handle
Radix_tree
"semantic action code which creates the AST objects or performs limited string operations". OMeta's lack of "context-free syntax" allows it to be used in both
OMeta
Data structure for reusing strings
string interning is a method of storing only one copy of each distinct string value, which must be immutable. Interning strings makes some string processing
String_interning
Character from The Wire
Russell "Stringer" Bell is a fictional character and one of the main antagonists in The Wire, played by Idris Elba. In the criminal world of early 2000s
Stringer_Bell
Part of a machine instruction
described using an opcode table. The types of operations may include arithmetic, data copying, logical operations, program control, and special instructions
Opcode
order of operation AND is used for logical 'and' operations OR is used for logical 'or' operations NOT is used for logical 'not' operations For testing
Color_BASIC
Data structure
substring indexes include: The suffix tree, a radix tree of the suffixes of the string, allowing substring search to be performed symbol-by-symbol The suffix automaton
Substring_index
Multi-paradigm system programming language
compile-time function execution, allow for the generation of D code using string operations at compile time. This can be used to parse domain-specific languages
D_(programming_language)
Replacing placeholders in a string with values
programming, string interpolation (or variable interpolation, variable substitution, or variable expansion) is the process of evaluating a string literal containing
String_interpolation
vtypedef keyword *) viewtypedef Int_or_String_vt = [b: bool] int_or_string_vt b fn print_int_or_string (i_or_s: Int_or_String_vt): void = case+ i_or_s of (* ~
Comparison of programming languages (algebraic data type)
Comparison_of_programming_languages_(algebraic_data_type)
Microcode in x86 Intel processors
for handling string operations in a pipelined processor", published 1995-04-04, assigned to Intel "the first Cuops in a REP swing operation loads the MS
Intel_microcode
Data structure
In computer programming, a null-terminated string is a character string stored as an array containing the characters and terminated with a null character
Null-terminated_string
Part of a computer instruction
Retrieved 2025-09-06. There is a bug in the 8086 that causes multiple prefixes on string operations to be forgotten when an interrupt is acknowledged.
Opcode_prefix
16-bit microprocessor
2023). "The microcode and hardware in the 8086 processor that perform string operations". — (April 2023). "Reverse-engineering the division microcode in the
Intel_8086
List of programming language comparisons
hash function could be used to convert other types to INT. e.g. name[hash("string")] The indexing base can be 0 or 1 as per the System Variable ⎕IO. This
Comparison of programming languages (array)
Comparison_of_programming_languages_(array)
Deterministic finite automaton accepting set of all suffixes of particular string
given string which allows the storage, processing, and retrieval of compressed information about all its substrings. The suffix automaton of a string S {\displaystyle
Suffix_automaton
Software security techniques
that most buffer overflow attacks are based on certain string operations which end at string terminators. The reaction to this observation is that the
Buffer_overflow_protection
depending on function), Ballerina, C#, C++ (std::print() throws on failed operations), Common Lisp ("conditions and restarts" system), Curry, D (throwing on
Comparison of programming languages
Comparison_of_programming_languages
Concept in mathematics
that set, with string concatenation as the monoid operation and with the unique sequence of zero elements, often called the empty string and denoted by
Free_monoid
Unary operation on string sets
consists only of the empty string), V1=V, and define recursively the set Vi+1={wv:w∈Vi and v∈V} for each i>0, where wv denotes the string obtained by appending
Kleene_star
Text-string-oriented programming language
SNOBOL (StriNg Oriented and symBOlic Language) is a series of programming languages developed between 1962 and 1967 at AT&T Bell Laboratories by David
SNOBOL
On a string instrument, position is the relative location of the hand on the instrument's neck, indicated by ordinal numbers (e.g., 3rd). Fingering, independent
Position_(music)
Comparison of two programming languages
'Compiler automatically converts String to Integer Dim j As String = 1 'Compiler automatically converts Integer to String If i = j Then 'Compiler does cast
Comparison of C Sharp and Visual Basic .NET
Comparison_of_C_Sharp_and_Visual_Basic_.NET
Computer programming function
composition in Haskell. Among other uses, this allows defining element-wise operations for various kinds of collections. In category theory, a functor F : C
Map_(higher-order_function)
Operating system by Digital Equipment Corporation
control: DO While/Until, CASE/SELECT, IF-THEN-ELSE, GOTO character string operations (length, substring, concatenation) access to system information (date/time
TOPS-20
Royal Air Force officer
2015, and as Assistant Chief of the Defence Staff (Operations) from March 2015 to 2018. Stringer studied engineering at the University of Liverpool,
Edward_Stringer
Searching for patterns in compressed data
or no decompression. Searching in a compressed string is faster than searching an uncompressed string and requires less space. If the compressed file
Compressed_pattern_matching
String-searching algorithm
In computer science, the two-way string-matching algorithm (or Crochemore-Perrin string-matching algorithm) is a string-searching algorithm, discovered
Two-way string-matching algorithm
Two-way_string-matching_algorithm
Synthetic benchmark for evaluating the performance of computers
measures, the Dhrystone benchmark, being more focused on integer and string operations, is more commonly used for this purpose. Harold also reported comments
Whetstone_(benchmark)
exists is also called graded (and the f is called a gradation). String operations String functions (programming) Levi, F. W. (1944), "On semigroups", Bulletin
Levi's_lemma
Method of physical modelling synthesis
Karplus–Strong string synthesis is a method of physical modelling synthesis that loops a short waveform through a filtered delay line to simulate the sound
Karplus–Strong string synthesis
Karplus–Strong_string_synthesis
Delimited series of characters that represent a string in code
A string literal or anonymous string is a literal for a string value in source code. Commonly, a programming language includes a string literal code construct
String_literal
Sequence of characters that forms a search pattern
text. Usually such patterns are used by string-searching algorithms for "find" or "find and replace" operations on strings, or for input validation. Regular
Regular_expression
General-purpose programming language
keywords Type extension with type test Modules and separate compiling String operations Isolating unsafe code Support for system programming Oberon supports
Oberon_(programming_language)
Depending on the variant, floating-point, fixed-point, or character string operations were available. The Felix C-1024 included an EDIT instruction for
Felix_C
CISC microprocessor
in the V80. This made string operations about five times faster in the V80 than in the V60/V70. All floating-point operations are largely implemented
NEC_V60
Comment lines cannot be continued. COBOL: String constants may be continued by not ending the original string in a PICTURE clause with ', then inserting
Comparison of programming languages (syntax)
Comparison_of_programming_languages_(syntax)
are reported based on a program's dynamic (run-time) behavior. Unsafe operations are well isolated by a "Unchecked_" prefix. with optional dynamic type
Comparison of programming languages by type system
Comparison_of_programming_languages_by_type_system
Royal Air Force officer
October 2017, and oversaw all air operations in Operation Shader. On 11 May 2018, in the 2018 Special Honours, Stringer was appointed Commander of the Order
Johnny_Stringer_(RAF_officer)
Overview of and topical guide to computer programming
expressions Functional instructions Arrays Associative arrays String operations String functions List comprehension Object-oriented programming Object-oriented
Outline of computer programming
Outline_of_computer_programming
the computer-science sense of the word "string". This abstraction then allows one to talk about string operations in general, and eventually leads to the
Semiautomaton
Encryption algorithm
disjunction (XOR) operation. This operation is sometimes called modulus 2 addition (or subtraction, which is identical). With this logic, a string of text can
XOR_cipher
1944 World War II military operation
had demonstrated that large scale daylight airborne operations were feasible. Daylight operations, in contrast to those in Sicily and Normandy, would
Operation_Market_Garden
Extension of Rexx programming language with support for object-oriented programming
create method or routine objects. The String class provides methods for handling strings, such as logical operations, concatenation, copying, joining, splitting
Object_REXX
2D vector animation scripting program
command remains in the form of a string in memory and can be manipulated at runtime with standard string operations. Most BASIC interpreters of the era
GRASS_(programming_language)
Computer network management and monitoring protocol
applies to get requests. The read-write community string applies to set requests. The trap community string applies to receipt of traps. SNMPv3 also uses
Simple Network Management Protocol
Simple_Network_Management_Protocol
Family of higher-order functions
transformations which fold functions perform can be illustrated by constructing a string: λ> foldr (\x y -> concat ["(",x,"+",y,")"]) "0" (map show [1..13])
Fold_(higher-order_function)
Microprocessor model
instructions with short ones whenever possible. For example, a repeated string operation or a shift by three or more will take long enough to allow time for
Intel_8088
object's __clone() method Can be customized by overloading the object's string conversion operator This example requires useing Data::Dumper This example
Comparison of programming languages (object-oriented programming)
Comparison_of_programming_languages_(object-oriented_programming)
Chinese naval strategy hypothesised by the U.S. in 2004
The String of Pearls is a geopolitical hypothesis proposed by United States political researchers in 2004. It is the network of Chinese military and commercial
String of Pearls (Indian Ocean)
String_of_Pearls_(Indian_Ocean)
Programming algorithm
d[i,j] operations. This invariant holds since: It is initially true on row and column 0 because s[1..i] can be transformed into the empty string t[1..0]
Wagner–Fischer_algorithm
Structure on sequences of digits 1 and 2
any nonempty string may have its rank reduced by some operation, so there is a sequence of operations leading from it to the empty string, reversing which
Young–Fibonacci_lattice
Drill pipe that transmits drilling fluid
A drill string on a drilling rig is a column, or string, of drill pipe that transmits drilling fluid (via the mud pumps) and torque (via the kelly drive
Drill_string
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STRING OPERATIONS
STRING OPERATIONS
STRING OPERATIONS
STRING OPERATIONS
STRING OPERATIONS
STRING OPERATIONS
STRING OPERATIONS
STRING OPERATIONS
STRING OPERATIONS
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