A topic entry explains a short topic in one or a few paragraphs preceded
by a
topic header(12-
3).
A topic can contain any number of
hypertext(D-
-
4)
topic references(12-
3).
For example, this and the previous paragraph are a topic entry. This topic's
topic header is "
topic entry(12-
3)."
A topic header is the title to a
topic entry(12-
3),
and is generally meaningful, but kept short for easy integration into the help
file text. Topic headers begin a line with the topic headercode(Ctrl+^). A
topic header(12-
3)
may not contain a
topic reference(12-
3).
A topic reference refers to a
topic header(12-
3),
and begins with the topic reference code (Ctrl+A) character, and must
end on the same line with another topic reference code (Ctrl+A). It
usually includes a
topic reference pointer(12-
3)
for fast jumping to the topic.
A topic reference pointer consists of a topic pointer code
(Ctrl+G) and six or more decimal digits which should be accurate to the byte.
See
Compiling Hypertext(12-
2).
Start with all zeros.
A topic alias header is a line that contains exactly one topic reference
which concords a short phrase or word to a
topic header(12-
3).
This provides an index of
hypertext(D-
-
4)
links from common words in the help text to their exact Smart Characters
referents.
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