page advances the output of a given textfile by one page.
Page could refer to a piece of paper if the destination is a physical printer, or could imply blanking the entire screen, the specific behavior is implementation-defined.
Provided the destination is open for writing:
- If not at the beginning of a line, do a
- Implementation-defined method of advancing to the next “page”.
- On IBM mainframes, advancing to the next page was achieved by putting a
1, that is the character of the digit 1, in the first column of a line.
- On most machines using ASCII though, it simply means emitting a form feed character, i. e.
chr(12). The FPC and the GNU Pascal Compiler use this method.