String Functions

In BDL, strings represent a sequence of characters, and are chiefly of fixed length. The length of a string is controlled by using a null character to mark the end of the string. Strings are passed to functions by using a pointer to the first character.

Note: The index of the first character belonging to a string is one (1), not (0).

BinSearch Function
Searches binary data for either a string or a specified amount of binary data.
Bin2Hex Function
Converts an ASCII representation of binary data into the hexadecimal representation.
BinAdd Function
Appends a string or binary data to other binary data.
Binlen Function
Returns a string's data length.
BinSetlen Function
Sets the actual data length of a string.
CallConversionFunction Function
Converts a value by using the conversion function in a custom DLL.
Decrypt Function
Decrypts a string that has been encrypted using the Encrypt function.
Decrypt3DES Function
Decrypts a string that has been encrypted using the Encrypt3DES function.
Encrypt Function
Encrypts string or binary data into a printable format using RSA’s RC4 cipher.
Encrypt3DES Function
Encrypts string or binary data into a printable format using the Triple Data Encryption Algorithm (Triple DES) block cipher.
FromEncoding Function
Converts a string, from the codepage that has been set by SetEncoding, to the ANSI string that is printable within the Silk Performer GUI.
FromUTF8 Function
Converts a UTF8-encoded byte sequence into an ANSI string representation.
FStrReplace Function
Replaces all occurrences of a search string by a replace string in a source string.
GetEncoding Function
Gets the name of the codepage that has been set.
StrAnsi2Unicode Function
Converts a string from single-byte representation to unicode representation.
StrUnicode2Ansi Function
Converts a string from unicode representation to single-byte representation.
StrUnicodeLen Function
Determines the number of characters a string in unicode format consists of.
StrAdd Function
Appends a string or binary data to another string.
Strcat Function
Appends a string to another string.
Strchr Function
Searches for the first occurrence of a character in a string.
Strcpy Function
Copies a string into another string.
Strcspn Function
Searches a string for a character belonging to a defined set of characters.
Stricmp Function
Performs a lowercase comparison of strings.
Strlen Function
Retrieves the length of a string.
StrSize Function
Returns the size of a string's currently allocated memory buffer.
StrResize Function
Resizes a string's memory buffer.
Strlwr Function
Converts a string to lowercase
StrlwrEx Function
Converts a string to lowercase format (and umlautes, if required).
Strncmp Function
Compares lexicographically and case-sensitively the first count characters in two strings.
Strncpy Function
Copies the initial characters of a string to another string.
Strnicmp Function
Compares lexicographically the first characters of two strings.
Strnset Function
Overwrites the beginning of a string with a number of characters.
Strpbrk Function
Searches a string for the first occurrence of any one character out of a defined set.
Strrchr Function
Searches a string for the last occurrence of a character.
Strrev Function
Reverses the order of characters of a string.
StrSearch Function
Searches a string for a substring.
StrSearchDelimited Function
Searches for a string delimited on both sides by a specified character sequence.
Strset Function
Replaces all characters of a string with a specified character.
Strspn Function
Searches a string for the first character that does not belong to the set of characters.
Strstr Function
Searches a string for a substring.
Strtok Function
Finds the next token in a string.
Strupr Function
Converts a string to uppercase.
StruprEx Function
Converts a string to uppercase format (and umlautes if required).
Substr Function
Extracts a substring out of a string.
StrIsNull Function
Checks whether a string is null.
StrSetNull Function
Sets a string to null explicitly.
StrIsEmpty Function
Checks whether a string is empty or null.
StrFromHostCP Function
Converts a targeted host-character-set string that uses a specified code page into an ANSI string.
StrGetHostCP Function
Returns the default host code page used for string conversions.
StrSetHostCP Function
Sets the default host code page used for string conversions.
StrToHostCP Function
Converts an ANSI string representation into a targeted host-character-set string using the specified code page.
SetEncoding Function
Sets a codepage, which is used by the functions FromEncoding and ToEncoding, to convert the given strings.
ToEncoding Function
Converts the given ANSI string into the string of the codepage that has been selected by the SetEncoding function.
ToUTF8 Function
Converts an ANSI string representation into a UTF8-encoded byte sequence.

Parent topic: General Functions