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2.5. misc.pl - Miscellaneous Library


2.5.1. Purpose

This library provides miscellaneous routines.


2.5.2. Interface

require "misc.pl";

%misc_date_strings = ...

$result =
&MiscCheckRule($_, $rule, $type);

($action, $what) =
&MiscDoAction($action, $what);

$newtext =
&MiscTextWrap($text, $wrap, $prefix, $suffix, $keep_spaces);

$result =
&MiscDateFormat($fmt, $time, $msg_type);

$mixed =
&MiscUpperToMixed($upper);

$upper =
&MiscMixedToUpper($mixed);


2.5.3. Description

misc_date_strings contains the string lists used by MiscDateFormat indexed by the symbols (e.g. 'month') used by that routine.

MiscCheckRule checks a rule for a value $_. If an execution error is detected, an appropriate error is output. The result of the code executed is returned as result. If rule is an empty string, type is used to lookup a default rule for that type, if any. If rule is still an empty string, 1 is returned.

MiscDoAction executes a block of Perl code (action). If an execution error is detected, an appropriate error is output using what to name the block of code that failed. The result of the code executed is returned as result. action is only executed if it exists. If it does not, 1 is returned.

MiscTextWrap wraps a text string at a margin given by wrap. prefix is the string to begin each wrapped line. suffix is the string to terminate each wrapped line.


Note:

  • prefix is not added to the first line
  • suffix is not added to the last line
  • wrap includes prefix but excludes suffix


MiscDateFormat formats a date-time value. fmt is a string containing the symbols below.

Symbol Description Example
$day day number in month 6 or 22
$day0 day number in month zero-padded 06 or 22
$month month name January
$smonth abbreviated month name Jan
$monthnum month number (1..12) 6 or 12
$monthnum0 month number zero-padded (01..12) 06 or 12
$year year 1995
$syear abbreviated year 95
$weekday weekday name Monday
$sweekday abbreviated weekday name Mon
$hour hour (1..24) 6 or 14
$hour0 hour zero-padded (01..24) 06 or 14
$shour hour (1..12) 6 or 12
$shour0 hour zero-padded (01..12) 06 or 12
$ampm am or pm am
$AMPM AM or PM PM
$minute minute (0..59) 0 or 42
$minute0 minute zero-padded (00..59) 00 or 42
$second second (0..59) 0 or 42
$second0 second zero-padded (00..59) 00 or 42

time is a number of seconds since January 1, 1970. msg_type is the type of message, if any, to output when a bad format is found.

MiscUpperToMixed converts a name in an uppercase form (e.g. MY_STRING) to a mixed-case form (e.g. MyString).

MiscMixedToUpper converts a name in a mixed-case form (e.g. MyString) to an uppercase form (e.g. MY_STRING).