| 摘要 |
Layout rules are provided that enable white-space sensitive literals to be developed within a source program according to arbitrarily defined or virtual margins. In one aspect, a computerized programming system is provided. The system includes a source program having one or more computer program codes or instructions. A rules component enables a virtual margin to be positioned within the source program, where the virtual margin can be offset from a default margin by at least one position in the source program. The rules component enables a plurality of virtual margins to be nested within the source program. This includes allowing deviations in the margin such as a hole to be declared in the virtual margin.
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