break_string() - break a string at regular intervals
string break_string( string str | int foobar, int len, void | int indent | string indent );
This function breaks a continous string without newlines into a a string with newlines inserted at every 'len':th character. If 'indent' is defined and is given as an integer, 'indent' number of spaces are inserted after every newline. If 'indent' is a string that string is inserted before every newline. If the first argument is an integer, the function simply returns 0.
break_string() is *not* context sensitive. It does not take account of periods '.' and new-lines '\n'. This means that the result is not nec‐ essarily what you would expect. My experience is that you should use one space after a period and do not embed new-lines in the text, but append them to the result of break_string(). If this format does not meet your tastes you may find break_string() to be inadequate. A future revision of break_string() may allow different line-breaking semantics. (Cygnus)
implode(3), explode(3), sprintf(3)