Page

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The standard procedure 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.

signature

Page takes one text file as a parameter. It determines the destination. If the destination is output, it can be omitted. page; is short for page(output);.

behavior

Provided the destination is open for writing:

  1. If not at the beginning of a line, do a writeLn(destination).
  2. Implementation-defined method of advancing to the next “page”.

implementation

  • 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.

notes