Saves string if string is defined. TAB reset tabs to every 5n. Normally used to reset any previous tabpositions. Begin verbatim output using courier font. Usually for printing programs.
All character has equal width.
No output will occur if Aph is zero, but there will always be an appendix-entry in the 'List of contents'. Hps Numbervariable with the heading pre-space level. If the heading-level is less than or equal to Hps , then two lines will precede the section heading instead of one. Default is first level only. The real amount of lines is controlled by the variables Hps1 and Hps2 .