String functions (programming) - Wikipedia, the free encyclopedia
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String functions (programming)
From Wikipedia, the free encyclopedia
(Redirected from String manipulation algorithm)
String functions are used in computer programming languages to manipulate a string or query information
about a string (some do both).
Most computer programming languages that have a string datatype will have some string functions
although it should be noted that there may be other low level ways within each language to handle strings
directly. In object oriented languages, string functions are often implemented as properties and methods of
string objects. In both Prolog and Erlang, a string is represented as a list (of character codes), therefore all
list-manipulation procedures are applicable, though the latter also implements a set of such procedures
that are string-specific.
The most basic example of a string function is the length(string) function. This function returns the length
of a string literal.
This article is part of the
Programming Language Comparison
series.
General Comparison
Basic Syntax
Basic Instructions
Arrays
Associative arrays
String Operations
String Functions
Object-oriented programming
Database access
eg. length("hello world") would return 11.
Other languages may have string functions with similar or exactly the same syntax or parameters or
outcomes. For example in many languages the length function is usually represented as len(string). The
below list of common functions aims to help limit this confusion.
Evaluation strategy
List of "hello world" programs
Comparison of ALGOL 68 and C++
Compatibility of C and C++
Comparison of Pascal and Borland Delphi
Comparison of Pascal and C
Comparison of Object Pascal and C++
Comparison of Java and C++
Comparison of C# and Java
Comparison of C# and Visual Basic .NET
Comparison of ABAP and Java
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String functions (programming) - Wikipedia, the free encyclopedia
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Contents
1 Common String Functions (multi language reference)
1.1 CharAt
1.2 Compare (integer result)
1.3 Compare (integer result, fast/non-human ordering)
1.4 Compare (relational operator-based, Boolean result)
1.5 Concatenation
1.6 Equality
1.7 Find
1.8 Format
1.9 Inequality
1.10 index
1.11 indexof
1.12 instr
1.13 instrrev
1.14 join
1.15 lastindexof
1.16 left
1.17 len
1.18 length
1.19 locate
1.20 Lowercase
1.21 mid
1.22 partition
1.23 replace
1.24 reverse
1.25 rfind
1.26 right
1.27 rpartition
1.28 slice
1.29 split
1.30 sprintf
1.31 strip
1.32 strcmp
1.33 substring
1.34 Uppercase
1.35 trim
2 Notes
3 External links
Common String Functions (multi language reference)
Here is a list of common string functions which are found in other languages. Any other equivalent functions used by other languages are also
listed. The below list of common functions aims to help programmers find the equivalent function in a language. Note, string concatenation and
regular expressions are handled in separate pages.
CharAt
Definition charAt(string,integer) returns character.
Description Returns character at index in the string.
Equivalent See substring of length 1 character.
Format
Languages
Base index
string[i]
C, C++, C#, Python, PHP, Ruby, Windows PowerShell 0
string(i)
Ada
GetChar(string, i) VB
1
string.Chars(i)
VB.NET
0
string.charAt(i)
Java, JavaScript
0
string.[i]
OCaml
0
string !! i
Haskell
0
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(string-ref string i) Scheme
0
(char string i)
0
Common Lisp
substr(string, i, 1) Perl
0
string.at(i)
0
C++ (std::string only) (w/ bounds checking)
Compare (integer result)
Definition compare(string1,string2) returns integer.
Compares two strings to each other. If they are equivalent, a zero is returned. Otherwise, most of these routines will return a positive
Description or negative result corresponding to whether string1 is lexicographically greater than, or less than, respectively, than string2. The
exceptions are the Scheme and REXX routines which return the index of the first mismatch.
Format
Languages
cmp(string1, string2)
Python
strcmp(string1, string2)
C, C++ (char * only), PHP
StrComp(string1, string2)
VB
string1 cmp string2
Perl
string1 <=> string2
Ruby
string1.compare(string2)
C++ (std::string only)
compare(string1, string2)
REXX
CompareStr(string1, string2)
Pascal, Object Pascal (Delphi)
string1.compareTo(string2)
Java
string1.CompareTo(string2)
VB .NET, C#
(string-compare string1 string2 p< p= p>) Scheme
compare string1 string2
OCaml
compare string1 string2
Haskell (returns LT, EQ, or GT)
[string]::Compare(string1, string2)
Windows PowerShell
# Example in Python
cmp("hello", "world")
# returns: -1
/** Example in REXX */
compare("hello", "world")
/* returns index of mismatch: 1 */
; Example in Scheme
(use-modules (srfi srfi-13))
; returns index of mismatch: 0
(string-compare "hello" "world" values values values)
Compare (integer result, fast/non-human ordering)
Definition compare(string1,string2) returns integer.
Compares two strings to each other. If they are equivalent, a zero is returned. Otherwise, most of these routines will return a positive
or negative result corresponding to whether string1 is greater than, or less than, respectively, than string2. The reason for the difference
Description between this and #Compare (integer result) is that no ordering guarantees are given, leaving the implementation to do whatever
ordering is fastest, a common implementation is to order by length and then by byte value (which can be significantly faster, but much
less useful to humans).
Format
Languages
if (!(ret = (string1_len - string2_len))) ret = memcmp(string1, string2, string1_len) C
ustr_cmp_fast(string1, string2)
Ustr string library (http://www.and.org/ustr/)
(length(string1) <=> length(string2) ¦¦ string1 cmp string2)
Perl
cmp(len(string1), len(string2)) or cmp(string1, string2)
Python
(Length(string1) <> Length(string2)) or CompareStr(string1, string2)
Pascal, Object Pascal (Delphi)
Compare (relational operator-based, Boolean result)
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Definition string1 op string2 OR (compare string1 string2) returns Boolean.
Description Lexicographically compares two strings using a relational operator or function. Boolean result returned.
Format
Languages
Pascal, Object Pascal (Delphi),
OCaml, VB .NET
string1 op string2, where op can be any of =, <>, <, >, <= and >=
(stringX? string1 string2), where X can be any of =, -ci=, <>, -ci<>, <, -ci<, >, -ci>, <=, -ci<=, >= and -ci>=
Scheme
(operators starting with '-ci' are case-insensitive)
(stringX string1 string2), where X can be any of =, -equal, /=, -not-equal, <, -lessp, >, -greaterp, <=, -notgreaterp, >= and -not-lessp (the verbal operators are case-insensitive)
Common Lisp
string1 op string2, where op can be any of =, \=, <, >, <= and >=
REXX
string1 op string2, where op can be any of =, /=, <, >, <= and >=
Ada
string1 op string2, where op can be any of ==, /=, <, >, =< and >=
Erlang
string1 op string2, where op can be any of ==, /=, <, >, <= and >=
Haskell
string1 op string2, where op can be any of eq, ne, lt, gt, le and ge
Perl
string1 op string2, where op can be any of ==, !=, <, >, <= and >=
C++ (std::string only), C#,
JavaScript, Python
string1 op string2, where op can be any of -eq, -ceq, -ne, -cne, -lt, -clt, -gt, -cgt, -le, -cle, -ge, and -cge
(operators starting with 'c' are case-sensitive)
Windows PowerShell
% Example in Erlang
"hello" > "world".
% returns: false
Concatenation
Definition concatenate(string1,string2) returns string.
Concatenates (joins) two strings to each other, returning the combined string. Note that some languages like C have mutable strings, so
Description
really the second string is being appended to the first string and the mutated string is returned.
Format
Languages
string1 & string2
Ada, VB, VB .NET
strcat(string1, string2)
C, C++ (char * only)
string1 . string2
Perl, PHP
string1 + string2
C++ (std::string only), C#, Pascal, Object Pascal (Delphi), Java, JavaScript, Windows PowerShell,
Python
(string-append string1 string2)
Scheme
(concatenate 'string string1
string2)
Common Lisp
string1 || string2
REXX,Fortran
string1 ++ string2
Erlang
string1 ^ string2
OCaml
string1 ++ string2
Haskell
Equality
Tests if two strings are equal. See also #Compare and #Compare. Note that doing equality checks via. a generic Compare with integer result is not
only confusing for the programer but is often a significantly more expensive operation, this is especially true when using "C-strings".
Format
Languages
C++(std::string
string1 == string2
Python,
strcmp(string1, string2) == 0
C, C++ (char * only)
(string=? string1 string2)
Scheme
(string= string1 string2)
Common Lisp
string1 = string2
Ada, Object Pascal (Delphi), OCaml, Pascal, REXX, VB, VB .NET
test string1 = string2, or
[ string1 = string2 ]
Bourne Shell
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only), C#, JavaScript PHP, Ruby, Erlang, Haskell
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string1 eq string2
Perl
string1.equals(string2)
Java
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string1 -eq string2, or
Windows PowerShell
[string]::Equals(string1, string2)
Find
Definition find(string,substring) returns integer
Returns the position of the start of the first occurrence of substring in string. If the substring is not found most of these routines return
Description
an invalid index value – -1 where indexes are 0-based, 0 where they are 1-based – or some value to be interpreted as Boolean FALSE.
Related
instrrev
Format
Languages
If not found
InStr([startpos,]string,substring)
VB (positions start at 1)
returns 0
index(string,substring)
AWK
returns 0
index(string,substring[,startpos])
Perl
returns -1
strpos(string,substring[,startpos])
PHP
returns FALSE
locate(string, substring)
Ingres
returns string length + 1
strstr(string, substring)
C, C++ (char * only, returns pointer to first character) returns NULL
pos(substring, string)
Pascal, Object Pascal (Delphi)
returns 0
pos(substring, string[,startpos])
REXX
returns 0
string.find(substring[,startpos])
C++ (std::string only)
returns std::string::npos
string.find(substring[,startpos[[,endpos]])
Python
returns -1
string.index(substring[,startpos])
Ruby
returns nil
string.indexOf(substring[,startpos])
Java, JavaScript
returns -1
string.IndexOf(substring[,startpos[, charcount]]) VB .NET, C#, Windows PowerShell
returns -1
string:str(string, substring))
Erlang
returns 0
(string-contains string substring)
Scheme
returns #f
(search substring string)
Common Lisp
returns NIL
' Example in Visual Basic
InStr("Hello mate", "ell")
InStr(5, "Hello mate", "e")
InStr("word", "z")
' returns: 2
' returns: 10
' returns: 0
; Example in Scheme
(use-modules (srfi srfi-13))
(string-contains "Hello mate", "ell") ; returns: 1
(string-contains "word", "z")
; returns: #f
Format
Definition format(formatstring, items) returns string
Description Returns the formatted string representation of one or more items. See sprintf for more information.
Format
Languages
Format(item, formatstring)
VB
sprintf(formatstring, items)
Perl, PHP, Ruby
sprintf(outputstring, formatstring, items) C, C++ (char * only)
printf -v outputstring formatstring items Unix
formatstring % (items)
Python
Printf.sprintf formatstring items
OCaml
Text.Printf.printf formatstring items
Haskell (GHC)
String.format(formatstring, items)
Java
String.Format(formatstring, items)
VB .NET, C#, Windows PowerShell
(format formatstring items)
Scheme
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(format nil formatstring items)
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Common Lisp
Inequality
Tests if two strings are not equal. See also #Equality.
Format
Languages
string1 <> string2
VB,VB .NET, Pascal, Object Pascal (Delphi), OCaml
string1 ne string2
Perl
(string<>? string1 string2)
Scheme
(string/= string1 string2))
Common Lisp
string1 != string2
C++ (std::string only), C#, JavaScript, Python
string1 \= string2
REXX
string1 /= string2
Ada, Erlang, Haskell
test string1 != string2, or
[ string1 != string2 ]
Bourne Shell
string1 -ne string2, or
Windows PowerShell
![string]::Equals(string1, string2)
index
see #Find
indexof
see #Find
instr
see #Find
instrrev
see #rfind
join
Definition join(separator, list_of_strings) joins a list of strings with a separator
Description Joins the list of strings into a new string, with the separator string between each of the substrings. Opposite of split.
Related
sprintf
Format
Languages
join(separator, list_of_strings)
Perl
implode(separator, array_of_strings)
PHP
separator.join(sequence_of_strings)
Python
array_of_strings.join(separator)
Ruby, JavaScript
(string-join array_of_strings separator)
Scheme
(format nil "~{~a~^separator~}" array_of_strings) Common Lisp
String.concat separator list_of_strings
OCaml
Data.List.intercalate separator list_of_strings
Haskell (GHC)
Join(array_of_strings, separator)
VB
String.Join(separator, array_of_strings)
VB .NET, C#
&{$OFS=$separator; "$array_of_strings"}, or
[string]::Join(separator, array_of_strings)
Windows PowerShell
# Example in Python
mystr = "-".join(["a", "b", "c"])
# ('a-b-c')
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; Example in Scheme
(use-modules (srfi srfi-13))
(string-join '("a" "b" "c") "-")
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; "a-b-c"
lastindexof
see #rfind
left
Definition left(string,n) returns string
Returns the left n part of a string. If n is greater than the length of the string then most implementations return the whole string
Description
(exceptions exist - see code examples).
Format
Languages
string (string'First .. string'First + n - 1) Ada
Left(string,n)
VB
left(string,n)
Ingres
left(string,n [,padchar])
REXX, Erlang
substr(string, 0, n)
AWK (changes string), Perl, PHP
string[:n]
Python
string[0..n - 1]
Ruby
string.substr(0,n)
C++ (std::string only)
string.Substring(0,n)
VB .NET, C#, Windows PowerShell
leftstr(string, n)
Pascal, Object Pascal (Delphi)
string.substring(0,n)
Java, JavaScript
(string-take string n)
Scheme
take n string
Haskell
' Example in Visual Basic
Left("sandroguidi", 3)
' returns: "san"
Left("sandroguidi", 100) ' returns: "sandroguidi"
/* Example in
left("abcde",
left("abcde",
left("abcde",
; Example in
(use-modules
(string-take
(string-take
REXX */
3)
8)
8, "*")
/* returns: "abc"
*/
/* returns: "abcde
" */
/* returns: "abcde***" */
Scheme
(srfi srfi-13))
"abcde", 3) ; returns: "abc"
"abcde", 8) ; returns: error
len
see #length
length
Definition length(string) returns an integer number
Returns the length of a string (not counting the null terminator or any other of the string's internal structural information). An empty
Description
string returns a length of 0.
Format
Languages
string'Length
Ada
length(string)
Perl, Ingres, Pascal, Object Pascal (Delphi), REXX
len(string)
Python, Erlang
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Len(string)
VB
string.Length
VB .NET, C#
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string.size OR string.length Ruby, Windows PowerShell
strlen(string)
C, C++ (char * only), PHP
string.length()
C++ (std::string only), Java
string.length
JavaScript
(string-length string)
Scheme
(length string)
Common Lisp
String.length string
OCaml
length string
Haskell
# Examples in Perl
length("hello")
length("")
# returns: 5
# returns: 0
# Examples in Erlang
string:len("hello"). % returns: 5
string:len("").
% returns: 0
locate
see #Find
Lowercase
see also #Uppercase
mid
see #substring
partition
Definition <string>.partition(separator) returns the sub-string before the separator; the separator; then the sub-string after the separator.
Description Splits the given string by the separator and returns the three substrings that together make the original.
Format
Languages
string.partition(separator) Python, Ruby
# Examples in Python
"Spam eggs spam spam and ham".partition('spam')
"Spam eggs spam spam and ham".partition('X')
# ('Spam eggs ', 'spam', ' spam and ham')
# ('Spam eggs spam spam and ham', "", "")
replace
Definition replace(string, find, replace) returns string
Description Returns a string the with find occurrences changed to replace.
Format
Languages
changestr(find, string, replace)
REXX
Replace(string, find, replace)
VB
string.Replace(find, replace)
VB .NET, C#
str_replace(find, replace, string)
PHP
string.replace(find, replace)
Python, Java (1.5+)
string.replaceAll(find_regex, replace)[1]
Java
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string.gsub(find, replace)
Ruby
string =~ s/find_regex/replace/g[1]
Perl
string.replace(find, replace, "g") or
string.replace(/find_regex/g, replace)[1]
JavaScript
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echo "string" | sed 's/find_regex/replace/g'[1] Unix
string.replace(find, replace), or
string -replace find_regex, replace[1]
Windows PowerShell
' Examples in Visual Basic
Replace("effffff", "f", "jump") ' returns "ejumpjumpjumpjumpjumpjump"
Replace("blah", "z", "y")
' returns "blah".
reverse
Definition reverse(string)
Description Reverses the order of the characters in the string.
Format
Languages
reverse string
Perl, Haskell
strrev(string)
PHP
string[::-1]
Python
(string-reverse string)
Scheme
(reverse string)
Common Lisp
string.reverse
Ruby
new StringBuilder(string).reverse().toString()
Java
std::reverse(string.begin(), string.end());
C++ (std::string only)
StrReverse(string)
VB
New String(Array.Reverse(string.ToCharArray())) VB .NET
new string(Array.Reverse(string.ToCharArray())) C#
rfind
Definition rfind(string,substring) returns integer
Returns the position of the start of the last occurrence of substring in string. If the substring is not found most of these routines return
Description
an invalid index value – -1 where indexes are 0-based, 0 where they are 1-based – or some value to be interpreted as Boolean FALSE.
Related
instr
Format
Languages
If not found
InStrRev([startpos, ]string,substring)
VB
returns 0
rindex(string,substring[,startpos])
Perl
returns -1
strrpos(string,substring[,startpos])
PHP
returns FALSE
string.rfind(substring[,startpos])
C++ (std::string only)
returns std::string::npos
string.rfind(substring[,startpos])
Python
returns -1
string.lastIndexOf(substring[,startpos])
Java, JavaScript
returns -1
string.LastIndexOf(substring[,startpos[, charcount]]) VB .NET, C#, Windows PowerShell returns -1
(search substring string :from-end)
Common Lisp
returns NIL
right
Definition right(string,n) returns string
Returns the right n part of a string. If n is greater than the length of the string then most implementations return the whole string
Description
(exceptions exist - see code examples).
Format
Languages
string (string'Last - n + 1 .. string'Last) Ada
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Right(string,n)
VB
right(string,n)
Ingres
right(string,n [,padchar])
REXX, Erlang
substr(string,-n)
Perl, PHP
string[-n:]
Python
(string-take-right string n)
Scheme
' Example in Visual Basic
Right("sandroguidi", 3)
Right("sandroguidi", 100)
' returns: "idi"
' returns: "sandroguidi"
/* Example in REXX */
right("abcde", 3)
right("abcde", 8)
right("abcde", 8, "*")
/* returns: "cde"
*/
/* returns: "
abcde" */
/* returns: "***abcde" */
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; Example in Scheme
(use-modules (srfi srfi-13))
(string-take-right "abcde", 3) ; returns: "cde"
(string-take-right "abcde", 8) ; returns: error
rpartition
<string>.rpartition(separator) Searches for the separator from right-to-left within the string then returns the sub-string before the
separator; the separator; then the sub-string after the separator.
Description Splits the given string by the right-most separator and returns the three substrings that together make the original.
Definition
Format
Languages
string.rpartition(separator) Python, Ruby
# Examples in Python
"Spam eggs spam spam and ham".rpartition('spam')
"Spam eggs spam spam and ham".rpartition('X')
### ('Spam eggs spam ', 'spam', ' and ham')
### ("", "", 'Spam eggs spam spam and ham')
slice
see #substring
split
Definition <string>.split(separator[, limit]) splits a string on separator, optionally only up to a limited number of substrings
Splits the given string by occurrences of the separator (itself a string) and returns a list (or array) of the substrings. If limit is given,
Description after limit - 1 separators have been read, the rest of the string is made into the last substring, regardless of whether it has any separators
in it. The Scheme and Erlang implementations are similar but differ in several ways. Opposite of join.
Format
Languages
split(/separator/, string[, limit])
Perl
explode(separator, string[, limit])
PHP
string.split(separator[, limit])
Javascript, Java, Python, Ruby
tokens(string, sepchars)
Erlang
(string-tokenize string[ charset[ start[ end]]]) Scheme
Split(string, sepchars[, limit])
VB
string.Split(sepchars[, limit[, options]])
VB .NET, C#
string.split(separator)
Windows PowerShell
# Example in Python
"Spam eggs spam spam and ham".split('spam') ### ('Spam eggs ', ' ', ' and ham')
"Spam eggs spam spam and ham".split('X')
### ('Spam eggs spam spam and ham')
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% Example in Erlang
string:tokens("abc;defgh;ijk", ";").
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% ["abc", "defgh", "ijk"]
; Example in Scheme
(use-modules (srfi srfi-13))
(string-tokenize "abc,defgh,ijk" char-set:letter)
; ("abc" "defgh" "ijk")
sprintf
see #Format
strip
see #trim
strcmp
see #Compare (integer result)
substring
Definition substr(string, startpos, numChars) returns string
Returns a substring of string starting at startpos of length numChars. The resulting string is truncated if there are fewer than numChars
Description
characters beyond the starting point
Format
Languages
string (startpos .. startpos + numChars - 1)
Ada
Mid(string, startpos, numChars)
VB
substr(string, startpos, numChars)
AWK (changes string), Perl, PHP
substr(string, startpos [,numChars, padChar]) REXX
string[startpos:startpos + numChars - 1]
Python
string[startpos, numChars]
Ruby
string.slice(startpos, endpos)
JavaScript
string.substr(startpos, numChars)
C++ (std::string only)
string.Substring(startpos, numChars)
VB .NET, C#, Windows PowerShell
string.substring(startpos, endpos)
Java, JavaScript
copy(string, startpos, numChars)
Delphi
(string-copy string startpos endpos)
Scheme
(subseq string startpos endpos)
Common Lisp
String.sub string startpos numChars
Ocaml
substr(string, startpos, numChars)
Erlang
char result[numChars+1] = "";
strncat(result, string + startpos, numChars);
C
take numChars $ drop startpos string
Haskell
# Example in AWK
substr("abc", 2, 1)
substr("abc", 2, 6)
# returns: "b"
# returns: "bc"
/* Example in
substr("abc",
substr("abc",
substr("abc",
substr("abc",
/*
/*
/*
/*
REXX */
2, 1)
2)
2, 6)
2, 6, "*")
returns:
returns:
returns:
returns:
"b"
"bc"
"bc
"
"bc****"
*/
*/
*/
*/
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% Example in Erlang
string:substr("abc", 2, 1).
string:substr("abc", 2).
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% returns: "b"
% returns: "bc"
' Example in Visual Basic .NET
' -> Left(input, len) and input.Substring(0, len) are equivalent!
Dim len As Integer = 3
Dim input As String = "abcdef"
Dim expected = "abc"
'Gets the first 3 characters using Left and String.Substring
Dim withLeft As String = Left(input, len)
Dim withSubstring As String = input.Substring(0, len)
'Verify the two methods returned the expected value
Debug.Assert(withSubstring = expected AndAlso withLeft = expected)
Uppercase
Definition uppercase(string) returns string
Description Returns the string in upper case.
Format
Languages
UCase(string)
VB
toupper(string)
AWK (changes string)
uc(string)
Perl
toupper(char)
C (operates on a single character)
transform(string.begin(), string.end(),
result.begin(), toupper)
C++ (std::string only, result is stored in string result which is at least as long as string, and
may or may not be string itself)
uppercase(string)
Delphi
strtoupper(string)
PHP
echo "string" | tr 'a-z' 'A-Z'
Unix
translate(string)
REXX
string.upper()
Python
string.upcase
Ruby
(string-upcase string)
Scheme, Common Lisp
String.uppercase string
OCaml
map Char.toUpper string
Haskell
string.toUpperCase()
Java, JavaScript
to_upper(string)
Erlang
string.ToUpper()
VB .NET, C#, Windows PowerShell
' Example in Visual Basic
UCase("Wiki means fast?")
' "WIKI MEANS FAST?"
/* Example in REXX */
translate("Wiki means fast?")
/* "WIKI MEANS FAST?" */
; Example in Scheme
(use-modules (srfi srfi-13))
(string-upcase "Wiki means fast?") ; "WIKI MEANS FAST?"
trim
trim or strip is used to remove whitespace from the beginning, end, or both beginning and end, of a string.
Notes
1. ^ a b c d e The "find" string in this construct is interpreted as a regular expression. Certain characters have special meaning in regular
expressions. If you want to find a string literally, you need to quote the special characters.
http://en.wikipedia.org/wiki/String_manipulation_algorithm
02.07.2008 11:38:14
String functions (programming) - Wikipedia, the free encyclopedia
Seite 13
External links
Perl String Functions (http://perldoc.perl.org/index-functions-by-cat.html#Functions-for-SCALARs-or-strings)
Python String Methods (http://docs.python.org/lib/string-methods.html)
Scheme String Procedures (http://srfi.schemers.org/srfi-13/srfi-13.html)
Erlang String Functions (http://www.erlang.org//doc/man/string.html)
The Better String Library (http://bstring.sf.net/)
The Vstr String Library (http://www.and.org/vstr/)
The Ustr String Library (http://www.and.org/ustr/)
The "Str Library" String Library (http://www.utilitycode.com/str/)
The C string library comparison (http://www.and.org/vstr/comparison)
Ruby String Class (http://www.ruby-doc.org/docs/ProgrammingRuby/html/ref_c_string.html)
PHP String functions (http://www.php.net/manual/en/ref.strings.php)
ABAP and Java String Functions compared (http://www.abap2java.com/String_Processing)
Online String Manipulation Tools (http://www.string-functions.com/)
Haskell Hierarchical Libraries (http://haskell.org/ghc/docs/latest/html/libraries/)
System.String Members (http://msdn2.microsoft.com/en-us/library/system.string_members.aspx)
Retrieved from "http://en.wikipedia.org/wiki/String_functions_%28programming%29"
Categories: Programming language comparisons | Character encoding | Algorithms on strings | Articles with example code | Articles with example
Python code
This page was last modified on 26 June 2008, at 15:44.
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http://en.wikipedia.org/wiki/String_manipulation_algorithm
02.07.2008 11:38:14