String Operations

The following functions manipulate and manage string data:

ACODE$	Translate a Unicode string into an ANSI string
ARRAY ASSIGN	Assign a number of values to successive elements of an array
ARRAY DELETE	Delete a single item from a given array
ARRAY INSERT	Insert a single item into a given array
ARRAY SCAN	Scan all or part of an array for a given value
ARRAY SORT	Sort all or part of a given array
BIN$	Return a string with the binary (base 2) representation of a value
BUILD$	Concatenate multiple strings with high efficiency
CHOOSE$	Return one of several values, based upon the value of an index
CHR$	Convert one or more ASCII codes into ASCII character(s)
CLSID$	Return a 16-byte (128-bit) GUID string containing a CLSID

COMM LINE	Receive a CR/LF terminated "line" of data from a serial port
COMM PRINT	Send a "line" of binary data through a serial port
COMM RECV	Receive binary data from a serial port
COMM SEND	Send a string of binary data through a serial port
COMMAND$	Return the command-line used to start the program
CSET	Center a string within the space of another string or UDT
CSET$	Return a string containing a centered (padded) string
CURDIR$	Return the current directory for a given drive
DATA	Declare an array of constants to be read by READ$
DATACOUNT	Return the total count of the number of local data items
DATE$	Set and retrieve the system date
DIM	Declare and dimension arrays, scalar variables, and pointers
DIR$	Return a filename that matches the given mask
DIR$ CLOSE	Force the release the operating system FindNext handle
ENVIRON	Modify the current program's environment table.
ENVIRON$	Retrieve strings from the operating system's environment table
ERASE	Deallocate array memory
ERL$	Return the last label, line number, or procedure name executed prior to the most recent error.
ERROR$	Return a string containing the descriptive name of an error
EXTRACT$	Return up to the first occurrence of a specified character
EXE	Return the path and/or name of the executing program.
FIELD	Bind a field string variable to a particular sub-section of a random file buffer or a dynamic string variable
FIELD RESET	Reset the FIELD string to a nul (zero-length) dynamic string
FIELD STRING	Change the FILED string to a dynamic string, but first assigns the current sub-section data to it
FILENAME$	Return the file-system name of an open file
FORMAT$	Return a string containing formatted numeric data
FUNCNAME$	Return the name of the current Sub/Function/Method/Property
GET	Read a record from a random-access file
GET$	Read a string from a file opened in binary mode
GUID$	Return a 16-byte (128-bit) Globally Unique Identifier GUID
GUIDTXT$	Return a 38-byte human-readable GUID/UUID string
HEX$	Hexadecimal (base 16) string representation of an argument
IIF$	Return one of two values based upon a True/False evaluation
INPUT#	Load variables with data from a sequential file
INPUTBOX$	INPUTBOX$ displays a dialog box containing a prompt
INSTR	Search a string for the first occurrence of a character or string
JOIN$	Return a string consisting of all of the strings in a string array
LCASE$	Return a lowercase version of a string argument
LEFT$	Return the left-most n characters of a string
LEN	Return the logical length of a variable, UDT, or Union
LET	Assign a value to a variable.
LET (with Types)	Assign data to a user-defined type variable.
LET (with Variants)	Assign a value or an object reference to a variant variable
LINE INPUT#	Read line(s) from a sequential file into a string variable or array
LPRINT	Output text and data to a printer device
LPRINT$	Return the current printer device used for LPRINT operations
LSET	Left-align a string within the space of another string or UDT
LSET$	Return a string containing a left-justified (padded) string
LTRIM$	Return a string with leading characters or strings removed
MAX$	Return the argument with the largest (maximum) value
MCASE$	Return a mixed case version of a string argument
MID$	Return a portion of a string
MID$	Replace characters in a string with characters from another string
MIN$	Return the argument with the smallest (minimium) value
MKBYT$	Convert a Byte value into a binary encoded string
MKCUR$	Convert a Currency value into a binary encoded string
MKCUX$	Convert an Extended Currency value into a binary encoded string
MKD$	Convert a Double-precision value into a binary encoded string
MKDWD$	Convert a Double-word value into a binary encoded string
MKE$	Convert an Extended-precision value into a binary encoded string
MKI$	Convert a Integer value into a binary encoded string
MKL$	Convert a Long-integer value into a binary encoded string
MKQ$	Convert a Quad-integer value into a binary encoded string
MKS$	Convert a Single-precision value into a binary encoded string
MKWRD$	Convert a Word value into a binary encoded string
MKDIR	Create a subdirectory/folder (like the DOS MKDIR command)
NUL$	Return a string containing a specified number of $NUL characters
OBJRESULT$	Returns a string which describes an OBJRESULT (hResult) code.
OCT$	Return a string that is a octal (base 8) representation of a value
PARSE	Parse a string and extract all delimited fields into an array
PARSE$	Return a delimited field from a string expression
PARSECOUNT	Return the count of delimited fields in a string expression
PATHNAME$	Parse a path/file name to extract component parts
PATHSCAN$	Find a file on disk and return the path and/or file name parts.
PEEK$	Return a sequence of bytes starting at a specific memory location
POKE$	Store a sequence of bytes starting at a specific memory location
PRINT#	Write a complete array to a sequential file
PROGID$	Return the alphanumeric PROGID string (text) of a given CLSID
PUT	Write a record to a random-access file or variable to a binary file
PUT$	Write a string to a file opened in binary mode
READ$	Retrieve string data from a local DATA list
REGEXPR	Scan a string for a matching "wildcard" or regular expression
REGREPL	Scan a "wildcard" match in a string with a new string
REMAIN$	Return all characters beyond occurrence of a specified character
REMOVE$	Return a copy of a string with characters or strings removed
REPEAT$	Return a string consisting of multiple copies of a specified string
REPLACE	Replace all occurrences of one string with another string
RESET	Clear a string, string array subscript, or an entire array
RETAIN$	Return a string with all non-specified characters removed
RIGHT$	Return the rightmost n characters of a string
RSET	Right justify a string into the space of a string variable or UDT
RSET$	Return a string containing a right-justified (padded) string
RTRIM$	Return a copy of a string with trailing characters/strings removed
SIZEOF	Return the total or physical length of any PowerBASIC variable
SPACE$	Return a string consisting of a specified number of spaces
STR$	Return the string representation of a number in printable form
STRDELETE$	Delete a specified number of characters from a string expression
STRING$	Return a string with multiple copies of the specified character
STRINSERT$	Insert a string at a specified position within another string
STRPTR	Return the address of the data held by a variable length string
STRREVERSE$	Reverse the contents of a string expression
SWAP	Exchange the values of two strings, pointers, or pointer targets
SWITCH$	Return one item of a series based upon a True/False evaluation
TAB$	Return a string with TAB characters expanded with spaces
TALLY	Count the number of occurrences of specified characters/strings
TIME$	Read and/or set the system time
TRIM$	Return a string with leading and trailing characters removed
TYPE SET	Assign the value of a UDT or string expression to a UDT
UCASE$	Return an all-uppercase (capitalized) version of a string
UCODE$	Translate an ANSI string into a Unicode string
UCODEPAGE	Set the default codepage used for ANSI / UNICODE conversions
USING$	Format string/numeric expressions using a mask string
VAL	Return the numeric equivalent of a string argument
VARIANT$	Return the dynamic string contained in a Variant variable
VARPTR	Return the 32-bit address of a string handle
VERIFY	Determine if each character of a string is in another string