| stack_str | get string between two stack string |
| between_str | get between string function is similar to the |
| mid | Returns a string that contains a specified number of characters starting from a specified position in a string. |
| lcase | Returns a string or character converted to lowercase. |
| ucase | Returns a string or character containing the specified string converted to uppercase. |
| trim | Removes all leading and trailing occurrences of a set of characters specified in an array from the current System.String object. |
| ltrim | Returns a string containing a copy of a specified string with no leading spaces (LTrim), no trailing spaces (RTrim), Or no leading Or trailing spaces (Trim). |
| rtrim | |
| instr | Returns an integer specifying the start position of the first occurrence of one string within another. |
| asc | Returns an Integer value representing the character code corresponding to a character. |
| startsWith | Does String Start or End With Another String?Determines if entries of x start or end with string (entries of) prefix or suffix respectively, where strings are recycled to common lengths. |
| endsWith | Does String Start or End With Another String?Determines if entries of x start or end with string (entries of) prefix or suffix respectively, where strings are recycled to common lengths. |
| textlines | split text to lines |