path: root/doc/classes/String.xml

<?xml version="1.0" encoding="UTF-8" ?>
<class name="String" category="Built-In Types" version="3.1">
	<brief_description>
		Built-in string class.
	</brief_description>
	<description>
		This is the built-in string class (and the one used by GDScript). It supports Unicode and provides all necessary means for string handling. Strings are reference counted and use a copy-on-write approach, so passing them around is cheap in resources.
	</description>
	<tutorials>
	</tutorials>
	<demos>
	</demos>
	<methods>
		<method name="String">
			<return type="String">
			</return>
			<argument index="0" name="from" type="bool">
			</argument>
			<description>
				Constructs a new String from the given [bool].
			</description>
		</method>
		<method name="String">
			<return type="String">
			</return>
			<argument index="0" name="from" type="int">
			</argument>
			<description>
				Constructs a new String from the given [int].
			</description>
		</method>
		<method name="String">
			<return type="String">
			</return>
			<argument index="0" name="from" type="float">
			</argument>
			<description>
				Constructs a new String from the given [float].
			</description>
		</method>
		<method name="String">
			<return type="String">
			</return>
			<argument index="0" name="from" type="Vector2">
			</argument>
			<description>
				Constructs a new String from the given [Vector2].
			</description>
		</method>
		<method name="String">
			<return type="String">
			</return>
			<argument index="0" name="from" type="Rect2">
			</argument>
			<description>
				Constructs a new String from the given [Rect2].
			</description>
		</method>
		<method name="String">
			<return type="String">
			</return>
			<argument index="0" name="from" type="Vector3">
			</argument>
			<description>
				Constructs a new String from the given [Vector3].
			</description>
		</method>
		<method name="String">
			<return type="String">
			</return>
			<argument index="0" name="from" type="Transform2D">
			</argument>
			<description>
				Constructs a new String from the given [Transform2D].
			</description>
		</method>
		<method name="String">
			<return type="String">
			</return>
			<argument index="0" name="from" type="Plane">
			</argument>
			<description>
				Constructs a new String from the given [Plane].
			</description>
		</method>
		<method name="String">
			<return type="String">
			</return>
			<argument index="0" name="from" type="Quat">
			</argument>
			<description>
				Constructs a new String from the given [Quat].
			</description>
		</method>
		<method name="String">
			<return type="String">
			</return>
			<argument index="0" name="from" type="AABB">
			</argument>
			<description>
				Constructs a new String from the given [AABB].
			</description>
		</method>
		<method name="String">
			<return type="String">
			</return>
			<argument index="0" name="from" type="Basis">
			</argument>
			<description>
				Constructs a new String from the given [Basis].
			</description>
		</method>
		<method name="String">
			<return type="String">
			</return>
			<argument index="0" name="from" type="Transform">
			</argument>
			<description>
				Constructs a new String from the given [Transform].
			</description>
		</method>
		<method name="String">
			<return type="String">
			</return>
			<argument index="0" name="from" type="Color">
			</argument>
			<description>
				Constructs a new String from the given [Color].
			</description>
		</method>
		<method name="String">
			<return type="String">
			</return>
			<argument index="0" name="from" type="NodePath">
			</argument>
			<description>
				Constructs a new String from the given [NodePath].
			</description>
		</method>
		<method name="String">
			<return type="String">
			</return>
			<argument index="0" name="from" type="RID">
			</argument>
			<description>
				Constructs a new String from the given [RID].
			</description>
		</method>
		<method name="String">
			<return type="String">
			</return>
			<argument index="0" name="from" type="Dictionary">
			</argument>
			<description>
				Constructs a new String from the given [Dictionary].
			</description>
		</method>
		<method name="String">
			<return type="String">
			</return>
			<argument index="0" name="from" type="Array">
			</argument>
			<description>
				Constructs a new String from the given [Array].
			</description>
		</method>
		<method name="String">
			<return type="String">
			</return>
			<argument index="0" name="from" type="PoolByteArray">
			</argument>
			<description>
				Constructs a new String from the given [PoolByteArray].
			</description>
		</method>
		<method name="String">
			<return type="String">
			</return>
			<argument index="0" name="from" type="PoolIntArray">
			</argument>
			<description>
				Constructs a new String from the given [PoolIntArray].
			</description>
		</method>
		<method name="String">
			<return type="String">
			</return>
			<argument index="0" name="from" type="PoolRealArray">
			</argument>
			<description>
				Constructs a new String from the given [PoolRealArray].
			</description>
		</method>
		<method name="String">
			<return type="String">
			</return>
			<argument index="0" name="from" type="PoolStringArray">
			</argument>
			<description>
				Constructs a new String from the given [PoolStringArray].
			</description>
		</method>
		<method name="String">
			<return type="String">
			</return>
			<argument index="0" name="from" type="PoolVector2Array">
			</argument>
			<description>
				Constructs a new String from the given [PoolVector2Array].
			</description>
		</method>
		<method name="String">
			<return type="String">
			</return>
			<argument index="0" name="from" type="PoolVector3Array">
			</argument>
			<description>
				Constructs a new String from the given [PoolVector3Array].
			</description>
		</method>
		<method name="String">
			<return type="String">
			</return>
			<argument index="0" name="from" type="PoolColorArray">
			</argument>
			<description>
				Constructs a new String from the given [PoolColorArray].
			</description>
		</method>
		<method name="begins_with">
			<return type="bool">
			</return>
			<argument index="0" name="text" type="String">
			</argument>
			<description>
				Returns [code]true[/code] if the string begins with the given string.
			</description>
		</method>
		<method name="bigrams">
			<return type="PoolStringArray">
			</return>
			<description>
				Returns the bigrams (pairs of consecutive letters) of this string.
			</description>
		</method>
		<method name="c_escape">
			<return type="String">
			</return>
			<description>
				Returns a copy of the string with special characters escaped using the C language standard.
			</description>
		</method>
		<method name="c_unescape">
			<return type="String">
			</return>
			<description>
				Returns a copy of the string with escaped characters replaced by their meanings according to the C language standard.
			</description>
		</method>
		<method name="capitalize">
			<return type="String">
			</return>
			<description>
				Changes the case of some letters. Replaces underscores with spaces, converts all letters to lowercase, then capitalizes first and every letter following the space character. For [code]capitalize camelCase mixed_with_underscores[/code] it will return [code]Capitalize Camelcase Mixed With Underscores[/code].
			</description>
		</method>
		<method name="casecmp_to">
			<return type="int">
			</return>
			<argument index="0" name="to" type="String">
			</argument>
			<description>
				Performs a case-sensitive comparison to another string. Returns [code]-1[/code] if less than, [code]+1[/code] if greater than, or [code]0[/code] if equal.
			</description>
		</method>
		<method name="dedent">
			<return type="String">
			</return>
			<description>
				Removes indentation from string.
			</description>
		</method>
		<method name="empty">
			<return type="bool">
			</return>
			<description>
				Returns [code]true[/code] if the string is empty.
			</description>
		</method>
		<method name="ends_with">
			<return type="bool">
			</return>
			<argument index="0" name="text" type="String">
			</argument>
			<description>
				Returns [code]true[/code] if the string ends with the given string.
			</description>
		</method>
		<method name="erase">
			<argument index="0" name="position" type="int">
			</argument>
			<argument index="1" name="chars" type="int">
			</argument>
			<description>
				Erases [code]chars[/code] characters from the string starting from [code]position[/code].
			</description>
		</method>
		<method name="find">
			<return type="int">
			</return>
			<argument index="0" name="what" type="String">
			</argument>
			<argument index="1" name="from" type="int" default="0">
			</argument>
			<description>
				Finds the first occurrence of a substring. Returns the starting position of the substring or -1 if not found. Optionally, the initial search index can be passed.
			</description>
		</method>
		<method name="find_last">
			<return type="int">
			</return>
			<argument index="0" name="what" type="String">
			</argument>
			<description>
				Finds the last occurrence of a substring. Returns the starting position of the substring or -1 if not found.
			</description>
		</method>
		<method name="findn">
			<return type="int">
			</return>
			<argument index="0" name="what" type="String">
			</argument>
			<argument index="1" name="from" type="int" default="0">
			</argument>
			<description>
				Finds the first occurrence of a substring, ignoring case. Returns the starting position of the substring or -1 if not found. Optionally, the initial search index can be passed.
			</description>
		</method>
		<method name="format">
			<return type="String">
			</return>
			<argument index="0" name="values" type="Variant">
			</argument>
			<argument index="1" name="placeholder" type="String" default="{_}">
			</argument>
			<description>
				Formats the string by replacing all occurrences of [code]placeholder[/code] with [code]values[/code].
			</description>
		</method>
		<method name="get_base_dir">
			<return type="String">
			</return>
			<description>
				If the string is a valid file path, returns the base directory name.
			</description>
		</method>
		<method name="get_basename">
			<return type="String">
			</return>
			<description>
				If the string is a valid file path, returns the full file path without the extension.
			</description>
		</method>
		<method name="get_extension">
			<return type="String">
			</return>
			<description>
				If the string is a valid file path, returns the extension.
			</description>
		</method>
		<method name="get_file">
			<return type="String">
			</return>
			<description>
				If the string is a valid file path, returns the filename.
			</description>
		</method>
		<method name="hash">
			<return type="int">
			</return>
			<description>
				Hashes the string and returns a 32-bit integer.
			</description>
		</method>
		<method name="hex_to_int">
			<return type="int">
			</return>
			<description>
				Converts a string containing a hexadecimal number into an integer.
			</description>
		</method>
		<method name="insert">
			<return type="String">
			</return>
			<argument index="0" name="position" type="int">
			</argument>
			<argument index="1" name="what" type="String">
			</argument>
			<description>
				Inserts a substring at a given position.
			</description>
		</method>
		<method name="is_abs_path">
			<return type="bool">
			</return>
			<description>
				If the string is a path to a file or directory, returns [code]true[/code] if the path is absolute.
			</description>
		</method>
		<method name="is_rel_path">
			<return type="bool">
			</return>
			<description>
				If the string is a path to a file or directory, returns [code]true[/code] if the path is relative.
			</description>
		</method>
		<method name="is_subsequence_of">
			<return type="bool">
			</return>
			<argument index="0" name="text" type="String">
			</argument>
			<description>
				Returns [code]true[/code] if this string is a subsequence of the given string.
			</description>
		</method>
		<method name="is_subsequence_ofi">
			<return type="bool">
			</return>
			<argument index="0" name="text" type="String">
			</argument>
			<description>
				Returns [code]true[/code] if this string is a subsequence of the given string, without considering case.
			</description>
		</method>
		<method name="is_valid_float">
			<return type="bool">
			</return>
			<description>
				Returns [code]true[/code] if this string contains a valid float.
			</description>
		</method>
		<method name="is_valid_hex_number">
			<return type="bool">
			</return>
			<argument index="0" name="with_prefix" type="bool" default="False">
			</argument>
			<description>
				Returns [code]true[/code] if this string contains a valid hexadecimal number. If [code]with_prefix[/code] is [code]true[/code], then a validity of the hexadecimal number is determined by [code]0x[/code] prefix, for instance: [code]0xDEADC0DE[/code].
			</description>
		</method>
		<method name="is_valid_html_color">
			<return type="bool">
			</return>
			<description>
				Returns [code]true[/code] if this string contains a valid color in HTML notation.
			</description>
		</method>
		<method name="is_valid_identifier">
			<return type="bool">
			</return>
			<description>
				Returns [code]true[/code] if this string is a valid identifier. A valid identifier may contain only letters, digits and underscores ([code]_[/code]) and the first character may not be a digit.
			</description>
		</method>
		<method name="is_valid_integer">
			<return type="bool">
			</return>
			<description>
				Returns [code]true[/code] if this string contains a valid integer.
			</description>
		</method>
		<method name="is_valid_ip_address">
			<return type="bool">
			</return>
			<description>
				Returns [code]true[/code] if this string contains a valid IP address.
			</description>
		</method>
		<method name="json_escape">
			<return type="String">
			</return>
			<description>
				Returns a copy of the string with special characters escaped using the JSON standard.
			</description>
		</method>
		<method name="left">
			<return type="String">
			</return>
			<argument index="0" name="position" type="int">
			</argument>
			<description>
				Returns a number of characters from the left of the string.
			</description>
		</method>
		<method name="length">
			<return type="int">
			</return>
			<description>
				Returns the string's amount of characters.
			</description>
		</method>
		<method name="lstrip">
			<return type="String">
			</return>
			<argument index="0" name="chars" type="String">
			</argument>
			<description>
				Returns a copy of the string with characters removed from the left.
			</description>
		</method>
		<method name="match">
			<return type="bool">
			</return>
			<argument index="0" name="expr" type="String">
			</argument>
			<description>
				Does a simple expression match, where [code]*[/code] matches zero or more arbitrary characters and [code]?[/code] matches any single character except '.'.
			</description>
		</method>
		<method name="matchn">
			<return type="bool">
			</return>
			<argument index="0" name="expr" type="String">
			</argument>
			<description>
				Does a simple case insensitive expression match, using [code]?[/code] and [code]*[/code] wildcards (see [method match]).
			</description>
		</method>
		<method name="md5_buffer">
			<return type="PoolByteArray">
			</return>
			<description>
				Returns the MD5 hash of the string as an array of bytes.
			</description>
		</method>
		<method name="md5_text">
			<return type="String">
			</return>
			<description>
				Returns the MD5 hash of the string as a string.
			</description>
		</method>
		<method name="nocasecmp_to">
			<return type="int">
			</return>
			<argument index="0" name="to" type="String">
			</argument>
			<description>
				Performs a case-insensitive comparison to another string. Returns [code]-1[/code] if less than, [code]+1[/code] if greater than, or [code]0[/code] if equal.
			</description>
		</method>
		<method name="ord_at">
			<return type="int">
			</return>
			<argument index="0" name="at" type="int">
			</argument>
			<description>
				Returns the character code at position [code]at[/code].
			</description>
		</method>
		<method name="pad_decimals">
			<return type="String">
			</return>
			<argument index="0" name="digits" type="int">
			</argument>
			<description>
				Formats a number to have an exact number of [code]digits[/code] after the decimal point.
			</description>
		</method>
		<method name="pad_zeros">
			<return type="String">
			</return>
			<argument index="0" name="digits" type="int">
			</argument>
			<description>
				Formats a number to have an exact number of [code]digits[/code] before the decimal point.
			</description>
		</method>
		<method name="percent_decode">
			<return type="String">
			</return>
			<description>
				Decode a percent-encoded string. See [method percent_encode].
			</description>
		</method>
		<method name="percent_encode">
			<return type="String">
			</return>
			<description>
				Percent-encodes a string. Encodes parameters in a URL when sending a HTTP GET request (and bodies of form-urlencoded POST requests).
			</description>
		</method>
		<method name="plus_file">
			<return type="String">
			</return>
			<argument index="0" name="file" type="String">
			</argument>
			<description>
				If the string is a path, this concatenates [code]file[/code] at the end of the string as a subpath. E.g. [code]"this/is".plus_file("path") == "this/is/path"[/code].
			</description>
		</method>
		<method name="replace">
			<return type="String">
			</return>
			<argument index="0" name="what" type="String">
			</argument>
			<argument index="1" name="forwhat" type="String">
			</argument>
			<description>
				Replaces occurrences of a substring with the given one inside the string.
			</description>
		</method>
		<method name="replacen">
			<return type="String">
			</return>
			<argument index="0" name="what" type="String">
			</argument>
			<argument index="1" name="forwhat" type="String">
			</argument>
			<description>
				Replaces occurrences of a substring with the given one inside the string. Ignores case.
			</description>
		</method>
		<method name="rfind">
			<return type="int">
			</return>
			<argument index="0" name="what" type="String">
			</argument>
			<argument index="1" name="from" type="int" default="-1">
			</argument>
			<description>
				Performs a search for a substring, but starts from the end of the string instead of the beginning.
			</description>
		</method>
		<method name="rfindn">
			<return type="int">
			</return>
			<argument index="0" name="what" type="String">
			</argument>
			<argument index="1" name="from" type="int" default="-1">
			</argument>
			<description>
				Performs a search for a substring, but starts from the end of the string instead of the beginning. Ignores case.
			</description>
		</method>
		<method name="right">
			<return type="String">
			</return>
			<argument index="0" name="position" type="int">
			</argument>
			<description>
				Returns the right side of the string from a given position.
			</description>
		</method>
		<method name="rsplit">
			<return type="PoolStringArray">
			</return>
			<argument index="0" name="divisor" type="String">
			</argument>
			<argument index="1" name="allow_empty" type="bool" default="True">
			</argument>
			<argument index="2" name="maxsplit" type="int" default="0">
			</argument>
			<description>
				Splits the string by a [code]divisor[/code] string and returns an array of the substrings, starting from right.
				[b]Example:[/b] [code]"One,Two,Three"[/code] will return [code]["One","Two","Three"][/code] if split by [code]","[/code].
				If [code]maxsplit[/code] is specified, then it is number of splits to do, default is 0 which splits all the items.
			</description>
		</method>
		<method name="rstrip">
			<return type="String">
			</return>
			<argument index="0" name="chars" type="String">
			</argument>
			<description>
				Returns a copy of the string with characters removed from the right.
			</description>
		</method>
		<method name="sha256_buffer">
			<return type="PoolByteArray">
			</return>
			<description>
				Returns the SHA-256 hash of the string as an array of bytes.
			</description>
		</method>
		<method name="sha256_text">
			<return type="String">
			</return>
			<description>
				Returns the SHA-256 hash of the string as a string.
			</description>
		</method>
		<method name="similarity">
			<return type="float">
			</return>
			<argument index="0" name="text" type="String">
			</argument>
			<description>
				Returns the similarity index of the text compared to this string. 1 means totally similar and 0 means totally dissimilar.
			</description>
		</method>
		<method name="split">
			<return type="PoolStringArray">
			</return>
			<argument index="0" name="divisor" type="String">
			</argument>
			<argument index="1" name="allow_empty" type="bool" default="True">
			</argument>
			<argument index="2" name="maxsplit" type="int" default="0">
			</argument>
			<description>
				Splits the string by a divisor string and returns an array of the substrings.
				[b]Example:[/b] [code]"One,Two,Three"[/code] will return [code]["One","Two","Three"][/code] if split by [code]","[/code].
				If [code]maxsplit[/code] is given, at most maxsplit number of splits occur, and the remainder of the string is returned as the final element of the list (thus, the list will have at most maxsplit+1 elements)
			</description>
		</method>
		<method name="split_floats">
			<return type="PoolRealArray">
			</return>
			<argument index="0" name="divisor" type="String">
			</argument>
			<argument index="1" name="allow_empty" type="bool" default="True">
			</argument>
			<description>
				Splits the string in floats by using a divisor string and returns an array of the substrings.
				[b]Example:[/b] [code]"1,2.5,3"[/code] will return [code][1,2.5,3][/code] if split by [code]","[/code].
			</description>
		</method>
		<method name="strip_edges">
			<return type="String">
			</return>
			<argument index="0" name="left" type="bool" default="True">
			</argument>
			<argument index="1" name="right" type="bool" default="True">
			</argument>
			<description>
				Returns a copy of the string stripped of any non-printable character at the beginning and the end. The optional arguments are used to toggle stripping on the left and right edges respectively.
			</description>
		</method>
		<method name="substr">
			<return type="String">
			</return>
			<argument index="0" name="from" type="int">
			</argument>
			<argument index="1" name="len" type="int">
			</argument>
			<description>
				Returns part of the string from the position [code]from[/code] with length [code]len[/code].
			</description>
		</method>
		<method name="to_ascii">
			<return type="PoolByteArray">
			</return>
			<description>
				Converts the String (which is a character array) to [PoolByteArray] (which is an array of bytes). The conversion is sped up in comparison to [method to_utf8] with the assumption that all the characters the String contains are only ASCII characters.
			</description>
		</method>
		<method name="to_float">
			<return type="float">
			</return>
			<description>
				Converts a string containing a decimal number into a [code]float[/code].
			</description>
		</method>
		<method name="to_int">
			<return type="int">
			</return>
			<description>
				Converts a string containing an integer number into an [code]int[/code].
			</description>
		</method>
		<method name="to_lower">
			<return type="String">
			</return>
			<description>
				Returns the string converted to lowercase.
			</description>
		</method>
		<method name="to_upper">
			<return type="String">
			</return>
			<description>
				Returns the string converted to uppercase.
			</description>
		</method>
		<method name="to_utf8">
			<return type="PoolByteArray">
			</return>
			<description>
				Converts the String (which is an array of characters) to [PoolByteArray] (which is an array of bytes). The conversion is a bit slower than [method to_ascii], but supports all UTF-8 characters. Therefore, you should prefer this function over [method to_ascii].
			</description>
		</method>
		<method name="trim_prefix">
			<return type="String">
			</return>
			<argument index="0" name="prefix" type="String">
			</argument>
			<description>
				Removes a given string from the start if it starts with it or leaves the string unchanged.
			</description>
		</method>
		<method name="trim_suffix">
			<return type="String">
			</return>
			<argument index="0" name="suffix" type="String">
			</argument>
			<description>
				Removes a given string from the end if it ends with it or leaves the string unchanged.
			</description>
		</method>
		<method name="xml_escape">
			<return type="String">
			</return>
			<description>
				Returns a copy of the string with special characters escaped using the XML standard.
			</description>
		</method>
		<method name="xml_unescape">
			<return type="String">
			</return>
			<description>
				Returns a copy of the string with escaped characters replaced by their meanings according to the XML standard.
			</description>
		</method>
	</methods>
	<constants>
	</constants>
</class>