Finds and marks blocks as being of field type.

The Fields for VT emulators extraction rule applies to VT220 integration only. It is used to recognize fields in VT emulator.
In fact, unlike in IBM mainframes, VT screens including fields are not typed as fields. Field detection is based on display attributes (background color, foreground color, etc.). When matching blocks are found, they are added to the XML document as field type XML elements.
Note:XML elements of the field type are handled by the field XSL template described in the field.xsl file. To change the way fields are displayed in the HTML page, edit this file.

Property Type Category Description
Comment String configuration Describes the object comment to include in the documentation report.
This property generally contains an explanation about the object.
Is active boolean configuration Defines whether the extraction rule is active.
Is final boolean configuration Defines if the extraction is final, i.e. whether pending extraction rules should try to match on the current extraction rule matching blocks.

If set to true, once the rule applies on a matching block, Convertigo doesn’t apply the following rules on this block. This can be used to prevent a block from being modified by other rules.
Attributes int selection Defines the presentation attributes on which the rule applies, i.e. the rule applies on blocks matching these presentation attributes.
This property allows to configure the rule so that it applies only to parts of screens having specific attributes, for example green text on black background.
Presentation attributes to configure are :

• Color: Foreground color, Background color, to choose in a list of predefined colors or “not to take into account”.
• Decoration: bold, reverse, underlined, blink, for each decoration choose between “with the decoration”, “normal” (i.e. without the decoration), or “not to take into account”.
Screen zone XMLRectangle selection Defines the screen zone on which the rule applies, i.e. the rule applies on blocks completely contained in this screen area.
This property allows to configure the rule so that it applies only to areas of screens. All blocks found within the specified perimeter are matching this screen zone and can be processed by the rule.
The screen area is defined through four coordinates:

• x (area left corner),
• y (area upper corner),
• w (area width),
• h (area height).

All values are given in characters, with the upper left corner being (x=0, y=0).
-1 represents an undefined value: (x=-1, y=-1, w=-1, h=-1) is an undefined area representing the whole screen, i.e. all blocks, whatever their coordinates, are matching this screen zone and can be processed by the rule.
Type String selection Defines, using a regular expression, to which block types the rule applies.
For example, if set to:

• static, the rule applies to blocks of static type only.
• static | field, the rule applies to blocks of static or field type only.
• [^field], the rule applies to all but field type blocks.

Notes:

• For more information about regular expression patterns, see the following page: http://www.regular-expressions.info/reference.html.
• To test regular expressions, you can use the regular expression tester at the following URL: http://www.regular-expressions.info/javascriptexample.html.