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Comment: added info about macro.XYZ


  • An email template consists of two named lists of items to include, one for the mail subject and one for the body.
  • The template lists define what order you want the items to be shown.
  • Entries like node.XYZevent.ABC and link.EFG (or macro.HIJ) are treated specially, but only if they are isolated separate items.
    For example, the text entry "The lazy fox likes"  is not special because here is part of a longer bit of text.
  • All non-special plain text items are included as-is, ie. for generating static header or footer text.
  • You can write your texts either single- our double-quoted; within double-quoted strings all the standard backslash escapes work - e.g. "\t" for a tab character).
    As these are all perl strings, the "@", "$" and "%" characters are special: within double-quoted strings you'll need to prefix those with a backslash. No such problems arise when you use single-quoted strings, but then no backslash escapes whatsoever are recognized in single-quoted strings.
  • Newlines are NOT created automatically. You have to include "\n" for that (within your double-quoted strings, or as separate item) whereever you want a line break.
  • The line breaks in the actual template definition are not relevant.
  • All special entries, of the form node.XYZ or event.XYZ are replaced by the node or event property XYZ.
    If the property is structured, with sub-elements (e.g. event.script), then these are shown on separate lines and indented with a tab character.
    The common node properties are documented here, and the event properties are listed on this page.
  • From opEvents 2.2 onwards, special entries of the form macro.XYZ are replaced by the value of the  macro  named XYZ (which are defined in the opCommon.nmis configuration file, in the section macro).
  • The entry link.eventcontext is replaced by a hyperlink to the event context page.
  • The entry link.nodecontext creates a hyperlink to the node context page.
    Both of these hyperlink generators rely on the setting opevents_url_base in opCommon.nmis to set an appropriate schema and hostname for the hyperlink. if this setting is missing you'll see http://localhost/ in the created hyperlinks.
  • Entries of the form node.* are translated into a list of all "standard summary" node properties, which are defined in opCommon.nmis, key opevents_gui_event_node_summary_list.
    For this summary, the property name is shown first, followed by a colon and a space, the property value, and a newline; repeated for each property. There is a trailing newline.
  • The form event.* works similarly, but for event properties and is not restricted to a default set. It also creates a trailing newline.
  • Both special forms node.* and event.* are disabled in the subject template, because that must contain just a single line of text. You also must not create multiple lines of text in the subject template (using "\n").