sub
Description
The sub() function replaces the first occurrence of the pattern within the source string.
Syntax
result = sub (pattern, replacement, sourcestring);
Arguments
| pattern | Required. The regular expression pattern to search for. |
| replacement |
Required. The replacement string. |
| sourcestring | Required. The source string to search for the first occurrence of pattern. |
Return Values
The resulting string
newstring = sub("\n$", "", textstring)
In this example, the first occurrence of a trailing new line is replaced with nothing, effectively chopping it off.
For more information, see gsub.
