POLHELP - Display information about POLPACK

Description:

This application displays information about POLPACK. This includes general topics common to all applications, as well as detailed descriptions of each application. The information is organised in a hierarchical structure of topics, subtopics, sub-subtopics, etc. Each entry ends with a list of related sub-topics. You can then examine any of these sub-topics or return to the previous level.

Usage:

polhelp [topic] [subtopic] [subsubtopic] [subsubsubtopic]

Parameters:

TOPIC = LITERAL (Read)

Topic for which help is to be given. [" "]

SUBTOPIC = LITERAL (Read)

Subtopic for which help is to be given. [" "]

SUBSUBTOPIC = LITERAL (Read)

Subsubtopic for which help is to be given. [" "]

SUBSUBSUBTOPIC = LITERAL (Read)

Subsubsubtopic for which help is to be given. [" "]

Navigating the Help Tree

The text for each topic is displayed in screen-fulls. A prompt is issued at the end of each topic at which you may:

• enter a topic and/or subtopic name(s) to display the help for that topic or subtopic, so for example, "polka parameters dpi" gives help on DPI, which is a subtopic of Parameters, which in turn is a subtopic of POLKA;

• press the RETURN key to see more text at a "Press RETURN to continue ..." request;

• press the RETURN key at topic and subtopic prompts to move up one level in the hierarchy, and if you are at the top level it will terminate the help session;

• enter CTRL/D (i.e. press the CTRL and D keys simultaneously) in response to any prompt will terminate the help session;

• enter a question mark "?" to redisplay the text for the current topic, including the list of topic or subtopic names; or

• enter an ellipsis "..." to display all the text below the current point in the hierarchy. For example, "POLKA..." displays information on the POLKA topic as well as information on all the subtopics under POLKA.

You can abbreviate any topic or subtopic using the following rules.

• Just give the first few characters, e.g. "PARA" for Parameters.

• Some topics are composed of several words separated by underscores. Each word of the keyword may be abbreviated, e.g. "Colour_Set" can be shortened to "C_S".

• The characters "%" and "$*$" act as wild-cards, where the percent sign matches any single character, and asterisk matches any sequence of characters. Thus to display information on all available topics, type an asterisk in reply to a prompt.

• If a word contains, but does end with an asterisk wild-card, it must not be truncated.

• The entered string must not contain leading or embedded spaces.

Ambiguous abbreviations result in all matches being displayed.

Copyright

Copyright (C) 1999 Central Laboratory of the Research Councils