March 2001
Intermediate to advanced
400 pages
8h 35m
English
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5.1. The Role of Data Languages
A data language has elements that specify, in human-readable form, data intended for a computer program. These languages appear when a need arises for users to be able to describe data in an input file. For example, users may need to type a record of orders taken while the system was down. In the example treated in this chapter, a marketing department passes a list of featured coffees to the group that writes a monthly brochure. This group has a computer application that reads the list and provides links to other information about the coffee types in the list. In examples such as these, existing code usually applies some variety of string matching to read such data, and this code can be complex.
The role of a data ...
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