5.3.9. List of Issues
Purpose:
Select the list of issues according to the given
constraints and current environmental parameters. The Publication,
Language, Issue parameters may not be defined outside List Issue
statement; inside the statement however, all these parameters are
defined. The code between "List ... Article ..." statement and
"ForEmptyList" (if used) or "EndList" is repeated for every article in
the list. When the list of article is empty the code in between
"ForEmptyList" and "EndList" is executed once.
Syntax:
List [length <integer_value>] [columns <integer_value>]
Issue [<list_of_issue_constraints>] [order <order_condition>]
<list_of_instructions>
[ForEmptyList [<list_of_instructions>]]
EndList [Issue]
where
length <integer_value> where <integer_value> specifies list_length forces the list to have at most list_length items. If the list contains more items than list_length items the ones not fitting in can be listed using If NextItems/PreviousItems statements.
columns <integer_value> where <integer_value> specifies columns_number
sets an environment variable. This is incremented as if the items would
be placed in a table cell. The counting starts from one and the
variable is incremented for every new element. When it reaches the
maximum value it is reset to one. This is very useful in building tables of data. For details see If List.
<list_of_instructions> may contain any statement except: "Language", "Publication", "List Issue", "Issue".
| <list_of_issue_constraints>= | [<issue_constraint>] <list_of_issue_constraints>
| <issue_constraint> |
| <order_condition>= | bydate desc|asc
|bynumber desc|asc |byname desc|asc |
where
year stands for year, mon_nr for month number (1..12), mday for month
day (1..31), yday for year day (1..365), wday for week day (1..7), hour
for hour, min for minute and sec for second.
Any parameter used in <list_of_issue_constraints> can only be used once.
Inside the List the following environment variables are modified:
The environment is restored after the list ends.
Constraints:
Inside List Issue the following statements are forbidden:
Language
Publication
List Issue
Issue
List Issue statement can not be used inside List Section, List Article, List Subtittle, List SearchResults statements.
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5.3.9. List of Issues
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5.3.8. Topic