StringName
A built-in type for unique strings.
描述
StringName s are immutable strings designed for general-purpose representation of unique names (also called "string interning"). Two StringName s with the same value are the same object. Comparing them is extremely fast compared to regular String
s.
You will usually pass a String
to methods expecting a StringName and it will be automatically converted (often at compile time), but in rare cases you can construct a StringName ahead of time with the StringName constructor or, in GDScript, the literal syntax &"example"
. Manually constructing a StringName allows you to control when the conversion from String
occurs or to use the literal and prevent conversions entirely.
See also NodePath
, which is a similar concept specifically designed to store pre-parsed scene tree paths.
All of String
's methods are available in this class too. They convert the StringName into a string, and they also return a string. This is highly inefficient and should only be used if the string is desired.
Note: In C#, an explicit conversion to System.String
is required to use the methods listed on this page. Use the ToString()
method to cast a StringName to a string, and then use the equivalent methods in System.String
or StringExtensions
.
Note: In a boolean context, a StringName will evaluate to false
if it is empty (StringName("")
). Otherwise, a StringName will always evaluate to true
.
通过 C# 使用该 API 时会有显著不同,详见 :ref:doc_c_sharp_differences
\ 。
构造函数
StringName | StringName ( ) |
StringName | StringName ( from: StringName ) |
StringName | StringName ( from: String ) |
方法
运算符
bool | operator != ( right: String ) |
bool | operator != ( right: StringName ) |
String | operator % ( right: Variant ) |
String | operator + ( right: String ) |
String | operator + ( right: StringName ) |
bool | operator < ( right: StringName ) |
bool | operator <= ( right: StringName ) |
bool | operator == ( right: String ) |
bool | operator == ( right: StringName ) |
bool | operator > ( right: StringName ) |
bool | operator >= ( right: StringName ) |
构造函数说明
StringName
StringName ( )
Constructs an empty StringName.
StringName
StringName ( from: StringName
)
Constructs a StringName as a copy of the given StringName.
StringName
StringName ( from: String
)
Creates a new StringName from the given String
. In GDScript, StringName("example")
is equivalent to &"example"
.
方法说明
bool
begins_with ( text: String
) const1
Returns true
if the string begins with the given text
. See also ends_with
.
PackedStringArray
bigrams ( ) const1
Returns an array containing the bigrams (pairs of consecutive characters) of this string.
print("Get up!".bigrams()) # Prints ["Ge", "et", "t ", " u", "up", "p!"]
Converts the string representing a binary number into an int
. The string may optionally be prefixed with "0b"
, and an additional -
prefix for negative numbers.
print("101".bin_to_int()) # Prints 5
print("0b101".bin_to_int()) # Prints 5
print("-0b10".bin_to_int()) # Prints -2
GD.Print("101".BinToInt()); // Prints 5
GD.Print("0b101".BinToInt()); // Prints 5
GD.Print("-0b10".BinToInt()); // Prints -2
Returns a copy of the string with special characters escaped using the C language standard.
Returns a copy of the string with escaped characters replaced by their meanings. Supported escape sequences are \'
, \"
, \\
, \a
, \b
, \f
, \n
, \r
, \t
, \v
.
Note: Unlike the GDScript parser, this method doesn't support the \uXXXX
escape sequence.
Changes the appearance of the string: replaces underscores (_
) with spaces, adds spaces before uppercase letters in the middle of a word, converts all letters to lowercase, then converts the first one and each one following a space to uppercase.
"move_local_x".capitalize() # Returns "Move Local X"
"sceneFile_path".capitalize() # Returns "Scene File Path"
"2D, FPS, PNG".capitalize() # Returns "2d, Fps, Png"
"move_local_x".Capitalize(); // Returns "Move Local X"
"sceneFile_path".Capitalize(); // Returns "Scene File Path"
"2D, FPS, PNG".Capitalize(); // Returns "2d, Fps, Png"
int
casecmp_to ( to: String
) const1
Performs a case-sensitive comparison to another string. Returns -1
if less than, 1
if greater than, or 0
if equal. "Less than" and "greater than" are determined by the Unicode code points of each string, which roughly matches the alphabetical order.
With different string lengths, returns 1
if this string is longer than the to
string, or -1
if shorter. Note that the length of empty strings is always 0
.
To get a bool
result from a string comparison, use the ==
operator instead. See also nocasecmp_to
, filecasecmp_to
, and naturalcasecmp_to
.
bool
contains ( what: String
) const1
Returns true
if the string contains what
. In GDScript, this corresponds to the in
operator.
print("Node".contains("de")) # Prints true
print("team".contains("I")) # Prints false
print("I" in "team") # Prints false
GD.Print("Node".Contains("de")); // Prints true
GD.Print("team".Contains("I")); // Prints false
If you need to know where what
is within the string, use find
. See also containsn
.
bool
containsn ( what: String
) const1
Returns true
if the string contains what
, ignoring case.
If you need to know where what
is within the string, use findn
. See also contains
.
int
count ( what: String
, from: int
= 0, to: int
= 0 ) const1
Returns the number of occurrences of the substring what
between from
and to
positions. If to
is 0, the search continues until the end of the string.
int
countn ( what: String
, from: int
= 0, to: int
= 0 ) const1
Returns the number of occurrences of the substring what
between from
and to
positions, ignoring case. If to
is 0, the search continues until the end of the string.
Returns a copy of the string with indentation (leading tabs and spaces) removed. See also indent
to add indentation.
bool
ends_with ( text: String
) const1
Returns true
if the string ends with the given text
. See also begins_with
.
String
erase ( position: int
, chars: int
= 1 ) const1
Returns a string with chars
characters erased starting from position
. If chars
goes beyond the string's length given the specified position
, fewer characters will be erased from the returned string. Returns an empty string if either position
or chars
is negative. Returns the original string unmodified if chars
is 0
.
int
filecasecmp_to ( to: String
) const1
Like naturalcasecmp_to
but prioritizes strings that begin with periods (.
) and underscores (_
) before any other character. Useful when sorting folders or file names.
To get a bool
result from a string comparison, use the ==
operator instead. See also filenocasecmp_to
, naturalcasecmp_to
, and casecmp_to
.
int
filenocasecmp_to ( to: String
) const1
Like naturalnocasecmp_to
but prioritizes strings that begin with periods (.
) and underscores (_
) before any other character. Useful when sorting folders or file names.
To get a bool
result from a string comparison, use the ==
operator instead. See also filecasecmp_to
, naturalnocasecmp_to
, and nocasecmp_to
.
int
find ( what: String
, from: int
= 0 ) const1
Returns the index of the first occurrence of what
in this string, or -1
if there are none. The search's start can be specified with from
, continuing to the end of the string.
print("Team".find("I")) # Prints -1
print("Potato".find("t")) # Prints 2
print("Potato".find("t", 3)) # Prints 4
print("Potato".find("t", 5)) # Prints -1
GD.Print("Team".Find("I")); // Prints -1
GD.Print("Potato".Find("t")); // Prints 2
GD.Print("Potato".Find("t", 3)); // Prints 4
GD.Print("Potato".Find("t", 5)); // Prints -1
Note: If you just want to know whether the string contains what
, use contains
. In GDScript, you may also use the in
operator.
int
findn ( what: String
, from: int
= 0 ) const1
Returns the index of the first case-insensitive occurrence of what
in this string, or -1
if there are none. The starting search index can be specified with from
, continuing to the end of the string.
String
format ( values: Variant
, placeholder: String
= "{_}" ) const1
Formats the string by replacing all occurrences of placeholder
with the elements of values
.
values
can be a Dictionary
or an Array
. Any underscores in placeholder
will be replaced with the corresponding keys in advance. Array elements use their index as keys.
# Prints "Waiting for Godot is a play by Samuel Beckett, and Godot Engine is named after it."
var use_array_values = "Waiting for {0} is a play by {1}, and {0} Engine is named after it."
print(use_array_values.format(["Godot", "Samuel Beckett"]))
# Prints "User 42 is Godot."
print("User {id} is {name}.".format({"id": 42, "name": "Godot"}))
Some additional handling is performed when values
is an Array
. If placeholder
does not contain an underscore, the elements of the values
array will be used to replace one occurrence of the placeholder in order; If an element of values
is another 2-element array, it'll be interpreted as a key-value pair.
# Prints "User 42 is Godot."
print("User {} is {}.".format([42, "Godot"], "{}"))
print("User {id} is {name}.".format([["id", 42], ["name", "Godot"]]))
See also the GDScript format string tutorial.
Note: In C#, it's recommended to interpolate strings with "$", instead.
String
get_base_dir ( ) const1
If the string is a valid file path, returns the base directory name.
var dir_path = "/path/to/file.txt".get_base_dir() # dir_path is "/path/to"
String
get_basename ( ) const1
If the string is a valid file path, returns the full file path, without the extension.
var base = "/path/to/file.txt".get_basename() # base is "/path/to/file"
String
get_extension ( ) const1
If the string is a valid file name or path, returns the file extension without the leading period (.
). Otherwise, returns an empty string.
var a = "/path/to/file.txt".get_extension() # a is "txt"
var b = "cool.txt".get_extension() # b is "txt"
var c = "cool.font.tres".get_extension() # c is "tres"
var d = ".pack1".get_extension() # d is "pack1"
var e = "file.txt.".get_extension() # e is ""
var f = "file.txt..".get_extension() # f is ""
var g = "txt".get_extension() # g is ""
var h = "".get_extension() # h is ""
If the string is a valid file path, returns the file name, including the extension.
var file = "/path/to/icon.png".get_file() # file is "icon.png"
String
get_slice ( delimiter: String
, slice: int
) const1
Splits the string using a delimiter
and returns the substring at index slice
. Returns an empty string if the slice
does not exist.
This is faster than split
, if you only need one substring.
print("i/am/example/hi".get_slice("/", 2)) # Prints "example"
int
get_slice_count ( delimiter: String
) const1
Returns the total number of slices when the string is split with the given delimiter
(see split
).
String
get_slicec ( delimiter: int
, slice: int
) const1
Splits the string using a Unicode character with code delimiter
and returns the substring at index slice
. Returns an empty string if the slice
does not exist.
This is faster than split
, if you only need one substring.
Returns the 32-bit hash value representing the string's contents.
Note: Strings with equal hash values are not guaranteed to be the same, as a result of hash collisions. On the contrary, strings with different hash values are guaranteed to be different.
PackedByteArray
hex_decode ( ) const1
Decodes a hexadecimal string as a PackedByteArray
.
var text = "hello world"
var encoded = text.to_utf8_buffer().hex_encode() # outputs "68656c6c6f20776f726c64"
print(buf.hex_decode().get_string_from_utf8())
var text = "hello world";
var encoded = text.ToUtf8Buffer().HexEncode(); // outputs "68656c6c6f20776f726c64"
GD.Print(buf.HexDecode().GetStringFromUtf8());
Converts the string representing a hexadecimal number into an int
. The string may be optionally prefixed with "0x"
, and an additional -
prefix for negative numbers.
print("0xff".hex_to_int()) # Prints 255
print("ab".hex_to_int()) # Prints 171
GD.Print("0xff".HexToInt()); // Prints 255
GD.Print("ab".HexToInt()); // Prints 171
String
indent ( prefix: String
) const1
Indents every line of the string with the given prefix
. Empty lines are not indented. See also dedent
to remove indentation.
For example, the string can be indented with two tabulations using "\t\t"
, or four spaces using " "
.
String
insert ( position: int
, what: String
) const1
Inserts what
at the given position
in the string.
bool
is_absolute_path ( ) const1
Returns true
if the string is a path to a file or directory, and its starting point is explicitly defined. This method is the opposite of is_relative_path
.
This includes all paths starting with "res://"
, "user://"
, "C:\"
, "/"
, etc.
Returns true
if the string's length is 0
(""
). See also length
.
bool
is_relative_path ( ) const1
Returns true
if the string is a path, and its starting point is dependent on context. The path could begin from the current directory, or the current Node
(if the string is derived from a NodePath
), and may sometimes be prefixed with "./"
. This method is the opposite of is_absolute_path
.
bool
is_subsequence_of ( text: String
) const1
Returns true
if all characters of this string can be found in text
in their original order.
var text = "Wow, incredible!"
print("inedible".is_subsequence_of(text)) # Prints true
print("Word!".is_subsequence_of(text)) # Prints true
print("Window".is_subsequence_of(text)) # Prints false
print("".is_subsequence_of(text)) # Prints true
bool
is_subsequence_ofn ( text: String
) const1
Returns true
if all characters of this string can be found in text
in their original order, ignoring case.
bool
is_valid_ascii_identifier ( ) const1
Returns true
if this string is a valid ASCII identifier. A valid ASCII identifier may contain only letters, digits, and underscores (_
), and the first character may not be a digit.
print("node_2d".is_valid_ascii_identifier()) # Prints true
print("TYPE_FLOAT".is_valid_ascii_identifier()) # Prints true
print("1st_method".is_valid_ascii_identifier()) # Prints false
print("MyMethod#2".is_valid_ascii_identifier()) # Prints false
See also is_valid_unicode_identifier
.
bool
is_valid_filename ( ) const1
Returns true
if this string does not contain characters that are not allowed in file names (:
/
\
?
*
"
|
%
<
>
).
bool
is_valid_float ( ) const1
Returns true
if this string represents a valid floating-point number. A valid float may contain only digits, one decimal point (.
), and the exponent letter (e
). It may also be prefixed with a positive (+
) or negative (-
) sign. Any valid integer is also a valid float (see is_valid_int
). See also to_float
.
print("1.7".is_valid_float()) # Prints true
print("24".is_valid_float()) # Prints true
print("7e3".is_valid_float()) # Prints true
print("Hello".is_valid_float()) # Prints false
bool
is_valid_hex_number ( with_prefix: bool
= false ) const1
Returns true
if this string is a valid hexadecimal number. A valid hexadecimal number only contains digits or letters A
to F
(either uppercase or lowercase), and may be prefixed with a positive (+
) or negative (-
) sign.
If with_prefix
is true
, the hexadecimal number needs to prefixed by "0x"
to be considered valid.
print("A08E".is_valid_hex_number()) # Prints true
print("-AbCdEf".is_valid_hex_number()) # Prints true
print("2.5".is_valid_hex_number()) # Prints false
print("0xDEADC0DE".is_valid_hex_number(true)) # Prints true
bool
is_valid_html_color ( ) const1
Returns true
if this string is a valid color in hexadecimal HTML notation. The string must be a hexadecimal value (see is_valid_hex_number
) of either 3, 4, 6 or 8 digits, and may be prefixed by a hash sign (#
). Other HTML notations for colors, such as names or hsl()
, are not considered valid. See also Color.html
.
bool
is_valid_identifier ( ) const1
已弃用: Use is_valid_ascii_identifier
instead.
Returns true
if this string is a valid identifier. A valid identifier may contain only letters, digits and underscores (_
), and the first character may not be a digit.
print("node_2d".is_valid_identifier()) # Prints true
print("TYPE_FLOAT".is_valid_identifier()) # Prints true
print("1st_method".is_valid_identifier()) # Prints false
print("MyMethod#2".is_valid_identifier()) # Prints false
Returns true
if this string represents a valid integer. A valid integer only contains digits, and may be prefixed with a positive (+
) or negative (-
) sign. See also to_int
.
print("7".is_valid_int()) # Prints true
print("1.65".is_valid_int()) # Prints false
print("Hi".is_valid_int()) # Prints false
print("+3".is_valid_int()) # Prints true
print("-12".is_valid_int()) # Prints true
bool
is_valid_ip_address ( ) const1
Returns true
if this string represents a well-formatted IPv4 or IPv6 address. This method considers reserved IP addresses such as "0.0.0.0"
and "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff"
as valid.
bool
is_valid_unicode_identifier ( ) const1
Returns true
if this string is a valid Unicode identifier.
A valid Unicode identifier must begin with a Unicode character of class XID_Start
or "_"
, and may contain Unicode characters of class XID_Continue
in the other positions.
print("node_2d".is_valid_unicode_identifier()) # Prints true
print("1st_method".is_valid_unicode_identifier()) # Prints false
print("MyMethod#2".is_valid_unicode_identifier()) # Prints false
print("állóképesség".is_valid_unicode_identifier()) # Prints true
print("выносливость".is_valid_unicode_identifier()) # Prints true
print("体力".is_valid_unicode_identifier()) # Prints true
See also is_valid_ascii_identifier
.
Note: This method checks identifiers the same way as GDScript. See TextServer.is_valid_identifier
for more advanced checks.
String
join ( parts: PackedStringArray
) const1
Returns the concatenation of parts
' elements, with each element separated by the string calling this method. This method is the opposite of split
.
var fruits = ["Apple", "Orange", "Pear", "Kiwi"]
print(", ".join(fruits)) # Prints "Apple, Orange, Pear, Kiwi"
print("---".join(fruits)) # Prints "Apple---Orange---Pear---Kiwi"
var fruits = new string[] {"Apple", "Orange", "Pear", "Kiwi"};
// In C#, this method is static.
GD.Print(string.Join(", ", fruits)); // Prints "Apple, Orange, Pear, Kiwi"
GD.Print(string.Join("---", fruits)); // Prints "Apple---Orange---Pear---Kiwi"
Returns a copy of the string with special characters escaped using the JSON standard. Because it closely matches the C standard, it is possible to use c_unescape
to unescape the string, if necessary.
String
left ( length: int
) const1
Returns the first length
characters from the beginning of the string. If length
is negative, strips the last length
characters from the string's end.
print("Hello World!".left(3)) # Prints "Hel"
print("Hello World!".left(-4)) # Prints "Hello Wo"
Returns the number of characters in the string. Empty strings (""
) always return 0
. See also is_empty
.
String
lpad ( min_length: int
, character: String
= " " ) const1
Formats the string to be at least min_length
long by adding character
s to the left of the string, if necessary. See also rpad
.
String
lstrip ( chars: String
) const1
Removes a set of characters defined in chars
from the string's beginning. See also rstrip
.
Note: chars
is not a prefix. Use trim_prefix
to remove a single prefix, rather than a set of characters.
bool
match ( expr: String
) const1
Does a simple expression match (also called "glob" or "globbing"), where *
matches zero or more arbitrary characters and ?
matches any single character except a period (.
). An empty string or empty expression always evaluates to false
.
bool
matchn ( expr: String
) const1
Does a simple case-insensitive expression match, where *
matches zero or more arbitrary characters and ?
matches any single character except a period (.
). An empty string or empty expression always evaluates to false
.
PackedByteArray
md5_buffer ( ) const1
Returns the MD5 hash of the string as a PackedByteArray
.
Returns the MD5 hash of the string as another String
.
int
naturalcasecmp_to ( to: String
) const1
Performs a case-sensitive, natural order comparison to another string. Returns -1
if less than, 1
if greater than, or 0
if equal. "Less than" or "greater than" are determined by the Unicode code points of each string, which roughly matches the alphabetical order.
When used for sorting, natural order comparison orders sequences of numbers by the combined value of each digit as is often expected, instead of the single digit's value. A sorted sequence of numbered strings will be ["1", "2", "3", ...]
, not ["1", "10", "2", "3", ...]
.
With different string lengths, returns 1
if this string is longer than the to
string, or -1
if shorter. Note that the length of empty strings is always 0
.
To get a bool
result from a string comparison, use the ==
operator instead. See also naturalnocasecmp_to
, filecasecmp_to
, and nocasecmp_to
.
int
naturalnocasecmp_to ( to: String
) const1
Performs a case-insensitive, natural order comparison to another string. Returns -1
if less than, 1
if greater than, or 0
if equal. "Less than" or "greater than" are determined by the Unicode code points of each string, which roughly matches the alphabetical order. Internally, lowercase characters are converted to uppercase for the comparison.
When used for sorting, natural order comparison orders sequences of numbers by the combined value of each digit as is often expected, instead of the single digit's value. A sorted sequence of numbered strings will be ["1", "2", "3", ...]
, not ["1", "10", "2", "3", ...]
.
With different string lengths, returns 1
if this string is longer than the to
string, or -1
if shorter. Note that the length of empty strings is always 0
.
To get a bool
result from a string comparison, use the ==
operator instead. See also naturalcasecmp_to
, filenocasecmp_to
, and casecmp_to
.
int
nocasecmp_to ( to: String
) const1
Performs a case-insensitive comparison to another string. Returns -1
if less than, 1
if greater than, or 0
if equal. "Less than" or "greater than" are determined by the Unicode code points of each string, which roughly matches the alphabetical order. Internally, lowercase characters are converted to uppercase for the comparison.
With different string lengths, returns 1
if this string is longer than the to
string, or -1
if shorter. Note that the length of empty strings is always 0
.
To get a bool
result from a string comparison, use the ==
operator instead. See also casecmp_to
, filenocasecmp_to
, and naturalnocasecmp_to
.
String
pad_decimals ( digits: int
) const1
Formats the string representing a number to have an exact number of digits
after the decimal point.
String
pad_zeros ( digits: int
) const1
Formats the string representing a number to have an exact number of digits
before the decimal point.
String
path_join ( file: String
) const1
Concatenates file
at the end of the string as a subpath, adding /
if necessary.
Example: "this/is".path_join("path") == "this/is/path"
.
String
repeat ( count: int
) const1
Repeats this string a number of times. count
needs to be greater than 0
. Otherwise, returns an empty string.
String
replace ( what: String
, forwhat: String
) const1
Replaces all occurrences of what
inside the string with the given forwhat
.
String
replacen ( what: String
, forwhat: String
) const1
Replaces all case-insensitive occurrences of what
inside the string with the given forwhat
.
Returns the copy of this string in reverse order. This operation works on unicode codepoints, rather than sequences of codepoints, and may break things like compound letters or emojis.
int
rfind ( what: String
, from: int
= -1 ) const1
Returns the index of the last occurrence of what
in this string, or -1
if there are none. The search's start can be specified with from
, continuing to the beginning of the string. This method is the reverse of find
.
int
rfindn ( what: String
, from: int
= -1 ) const1
Returns the index of the last case-insensitive occurrence of what
in this string, or -1
if there are none. The starting search index can be specified with from
, continuing to the beginning of the string. This method is the reverse of findn
.
String
right ( length: int
) const1
Returns the last length
characters from the end of the string. If length
is negative, strips the first length
characters from the string's beginning.
print("Hello World!".right(3)) # Prints "ld!"
print("Hello World!".right(-4)) # Prints "o World!"
String
rpad ( min_length: int
, character: String
= " " ) const1
Formats the string to be at least min_length
long, by adding character
s to the right of the string, if necessary. See also lpad
.
PackedStringArray
rsplit ( delimiter: String
= "", allow_empty: bool
= true, maxsplit: int
= 0 ) const1
Splits the string using a delimiter
and returns an array of the substrings, starting from the end of the string. The splits in the returned array appear in the same order as the original string. If delimiter
is an empty string, each substring will be a single character.
If allow_empty
is false
, empty strings between adjacent delimiters are excluded from the array.
If maxsplit
is greater than 0
, the number of splits may not exceed maxsplit
. By default, the entire string is split, which is mostly identical to split
.
var some_string = "One,Two,Three,Four"
var some_array = some_string.rsplit(",", true, 1)
print(some_array.size()) # Prints 2
print(some_array[0]) # Prints "One,Two,Three"
print(some_array[1]) # Prints "Four"
// In C#, there is no String.RSplit() method.
String
rstrip ( chars: String
) const1
Removes a set of characters defined in chars
from the string's end. See also lstrip
.
Note: chars
is not a suffix. Use trim_suffix
to remove a single suffix, rather than a set of characters.
PackedByteArray
sha1_buffer ( ) const1
Returns the SHA-1 hash of the string as a PackedByteArray
.
Returns the SHA-1 hash of the string as another String
.
PackedByteArray
sha256_buffer ( ) const1
Returns the SHA-256 hash of the string as a PackedByteArray
.
Returns the SHA-256 hash of the string as another String
.
float
similarity ( text: String
) const1
Returns the similarity index (Sorensen-Dice coefficient) of this string compared to another. A result of 1.0
means totally similar, while 0.0
means totally dissimilar.
print("ABC123".similarity("ABC123")) # Prints 1.0
print("ABC123".similarity("XYZ456")) # Prints 0.0
print("ABC123".similarity("123ABC")) # Prints 0.8
print("ABC123".similarity("abc123")) # Prints 0.4
String
simplify_path ( ) const1
If the string is a valid file path, converts the string into a canonical path. This is the shortest possible path, without "./"
, and all the unnecessary ".."
and "/"
.
var simple_path = "./path/to///../file".simplify_path()
print(simple_path) # Prints "path/file"
PackedStringArray
split ( delimiter: String
= "", allow_empty: bool
= true, maxsplit: int
= 0 ) const1
Splits the string using a delimiter
and returns an array of the substrings. If delimiter
is an empty string, each substring will be a single character. This method is the opposite of join
.
If allow_empty
is false
, empty strings between adjacent delimiters are excluded from the array.
If maxsplit
is greater than 0
, the number of splits may not exceed maxsplit
. By default, the entire string is split.
var some_array = "One,Two,Three,Four".split(",", true, 2)
print(some_array.size()) # Prints 3
print(some_array[0]) # Prints "One"
print(some_array[1]) # Prints "Two"
print(some_array[2]) # Prints "Three,Four"
// C#'s `Split()` does not support the `maxsplit` parameter.
var someArray = "One,Two,Three".Split(",");
GD.Print(someArray[0]); // Prints "One"
GD.Print(someArray[1]); // Prints "Two"
GD.Print(someArray[2]); // Prints "Three"
Note: If you only need one substring from the array, consider using get_slice
which is faster. If you need to split strings with more complex rules, use the RegEx
class instead.
PackedFloat64Array
split_floats ( delimiter: String
, allow_empty: bool
= true ) const1
Splits the string into floats by using a delimiter
and returns a PackedFloat64Array
.
If allow_empty
is false
, empty or invalid float
conversions between adjacent delimiters are excluded.
var a = "1,2,4.5".split_floats(",") # a is [1.0, 2.0, 4.5]
var c = "1| ||4.5".split_floats("|") # c is [1.0, 0.0, 0.0, 4.5]
var b = "1| ||4.5".split_floats("|", false) # b is [1.0, 4.5]
String
strip_edges ( left: bool
= true, right: bool
= true ) const1
Strips all non-printable characters from the beginning and the end of the string. These include spaces, tabulations (\t
), and newlines (\n
\r
).
If left
is false
, ignores the string's beginning. Likewise, if right
is false
, ignores the string's end.
String
strip_escapes ( ) const1
Strips all escape characters from the string. These include all non-printable control characters of the first page of the ASCII table (values from 0 to 31), such as tabulation (\t
) and newline (\n
, \r
) characters, but not spaces.
String
substr ( from: int
, len: int
= -1 ) const1
Returns part of the string from the position from
with length len
. If len
is -1
(as by default), returns the rest of the string starting from the given position.
PackedByteArray
to_ascii_buffer ( ) const1
Converts the string to an ASCII/Latin-1 encoded PackedByteArray
. This method is slightly faster than to_utf8_buffer
, but replaces all unsupported characters with spaces.
String
to_camel_case ( ) const1
Returns the string converted to camelCase
.
Converts the string representing a decimal number into a float
. This method stops on the first non-number character, except the first decimal point (.
) and the exponent letter (e
). See also is_valid_float
.
var a = "12.35".to_float() # a is 12.35
var b = "1.2.3".to_float() # b is 1.2
var c = "12xy3".to_float() # c is 12.0
var d = "1e3".to_float() # d is 1000.0
var e = "Hello!".to_int() # e is 0.0
Converts the string representing an integer number into an int
. This method removes any non-number character and stops at the first decimal point (.
). See also is_valid_int
.
var a = "123".to_int() # a is 123
var b = "x1y2z3".to_int() # b is 123
var c = "-1.2.3".to_int() # c is -1
var d = "Hello!".to_int() # d is 0
Returns the string converted to lowercase
.
String
to_pascal_case ( ) const1
Returns the string converted to PascalCase
.
String
to_snake_case ( ) const1
Returns the string converted to snake_case
.
Note: Numbers followed by a single letter are not separated in the conversion to keep some words (such as "2D") together.
"Node2D".to_snake_case() # Returns "node_2d"
"2nd place".to_snake_case() # Returns "2_nd_place"
"Texture3DAssetFolder".to_snake_case() # Returns "texture_3d_asset_folder"
"Node2D".ToSnakeCase(); // Returns "node_2d"
"2nd place".ToSnakeCase(); // Returns "2_nd_place"
"Texture3DAssetFolder".ToSnakeCase(); // Returns "texture_3d_asset_folder"
Returns the string converted to UPPERCASE
.
PackedByteArray
to_utf8_buffer ( ) const1
Converts the string to a UTF-8 encoded PackedByteArray
. This method is slightly slower than to_ascii_buffer
, but supports all UTF-8 characters. For most cases, prefer using this method.
PackedByteArray
to_utf16_buffer ( ) const1
Converts the string to a UTF-16 encoded PackedByteArray
.
PackedByteArray
to_utf32_buffer ( ) const1
Converts the string to a UTF-32 encoded PackedByteArray
.
PackedByteArray
to_wchar_buffer ( ) const1
Converts the string to a wide character (wchar_t
, UTF-16 on Windows, UTF-32 on other platforms) encoded PackedByteArray
.
String
trim_prefix ( prefix: String
) const1
Removes the given prefix
from the start of the string, or returns the string unchanged.
String
trim_suffix ( suffix: String
) const1
Removes the given suffix
from the end of the string, or returns the string unchanged.
int
unicode_at ( at: int
) const1
Returns the character code at position at
.
Decodes the string from its URL-encoded format. This method is meant to properly decode the parameters in a URL when receiving an HTTP request.
var url = "$DOCS_URL/?highlight=Godot%20Engine%3%docs"
print(url.uri_decode()) # Prints "$DOCS_URL/?highlight=Godot Engine:docs"
var url = "$DOCS_URL/?highlight=Godot%20Engine%3%docs"
GD.Print(url.URIDecode()) // Prints "$DOCS_URL/?highlight=Godot Engine:docs"
Encodes the string to URL-friendly format. This method is meant to properly encode the parameters in a URL when sending an HTTP request.
var prefix = "$DOCS_URL/?highlight="
var url = prefix + "Godot Engine:docs".uri_encode()
print(url) # Prints "$DOCS_URL/?highlight=Godot%20Engine%3%docs"
var prefix = "$DOCS_URL/?highlight=";
var url = prefix + "Godot Engine:docs".URIEncode();
GD.Print(url); // Prints "$DOCS_URL/?highlight=Godot%20Engine%3%docs"
String
validate_filename ( ) const1
Returns a copy of the string with all characters that are not allowed in is_valid_filename
replaced with underscores.
String
validate_node_name ( ) const1
Returns a copy of the string with all characters that are not allowed in Node.name
(.
:
@
/
"
%
) replaced with underscores.
String
xml_escape ( escape_quotes: bool
= false ) const1
Returns a copy of the string with special characters escaped using the XML standard. If escape_quotes
is true
, the single quote ('
) and double quote ("
) characters are also escaped.
String
xml_unescape ( ) const1
Returns a copy of the string with escaped characters replaced by their meanings according to the XML standard.
运算符说明
bool
operator != ( right: String
)
Returns true
if this StringName is not equivalent to the given String
.
bool
operator != ( right: StringName
)
Returns true
if the StringName and right
do not refer to the same name. Comparisons between StringName s are much faster than regular String
comparisons.
String
operator % ( right: Variant
)
Formats the StringName, replacing the placeholders with one or more parameters, returning a String
. To pass multiple parameters, right
needs to be an Array
.
For more information, see the GDScript format strings tutorial.
Note: In C#, this operator is not available. Instead, see how to interpolate strings with "$".
String
operator + ( right: String
)
Appends right
at the end of this StringName, returning a String
. This is also known as a string concatenation.
String
operator + ( right: StringName
)
Appends right
at the end of this StringName, returning a String
. This is also known as a string concatenation.
bool
operator < ( right: StringName
)
Returns true
if the left StringName's pointer comes before right
. Note that this will not match their Unicode order.
bool
operator <= ( right: StringName
)
Returns true
if the left StringName's pointer comes before right
or if they are the same. Note that this will not match their Unicode order.
bool
operator == ( right: String
)
Returns true
if this StringName is equivalent to the given String
.
bool
operator == ( right: StringName
)
Returns true
if the StringName and right
refer to the same name. Comparisons between StringName s are much faster than regular String
comparisons.
bool
operator > ( right: StringName
)
Returns true
if the left StringName's pointer comes after right
. Note that this will not match their Unicode order.
bool
operator >= ( right: StringName
)
Returns true
if the left StringName's pointer comes after right
or if they are the same. Note that this will not match their Unicode order.
本方法通常需要用户覆盖才能生效。
本方法无副作用,不会修改该实例的任何成员变量。
本方法除了能接受在此处描述的参数外,还能够继续接受任意数量的参数。
本方法用于构造某个类型。
调用本方法无需实例,可直接使用类名进行调用。
本方法描述的是使用本类型作为左操作数的有效运算符。
这个值是由下列位标志构成位掩码的整数。
无返回值。