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2. Flex (lexical analyser generator) - Wikipedia

   en.wikipedia.org/wiki/Flex_(lexical_analyser...

   Normally the generated scanner contains references to the unistd.h header file, which is Unix specific. To avoid generating code that includes unistd.h, %option nounistd should be used. Another issue is the call to isatty (a Unix library function), which can be found in the generated code.

3. Jakarta Connectors - Wikipedia

   en.wikipedia.org/wiki/Jakarta_Connectors

   Jakarta Connectors (JCA; formerly known as Java EE Connector Architecture and J2EE Connector Architecture) are a set of Java programming language tools designed for connecting application servers and enterprise information systems (EIS) as a part of enterprise application integration (EAI). While JDBC is specifically used to establish ...

4. Optical character recognition - Wikipedia

   en.wikipedia.org/wiki/Optical_character_recognition

   Video of the process of scanning and real-time optical character recognition (OCR) with a portable scanner. Optical character recognition or optical character reader (OCR) is the electronic or mechanical conversion of images of typed, handwritten or printed text into machine-encoded text, whether from a scanned document, a photo of a document, a scene photo (for example the text on signs and ...

5. Electronic invoicing - Wikipedia

   en.wikipedia.org/wiki/Electronic_invoicing

   UML class diagram depicting a invoice. Electronic invoicing (also called e-invoicing or einvoicing) is a form of electronic billing.E-invoicing includes a number of different technologies and entry options and is usually used as an umbrella term to describe any method by which a document is electronically presented from one party to another, either for payment [1] or to present and monitor ...

6. Free Java implementations - Wikipedia

   en.wikipedia.org/wiki/Free_Java_implementations

   Free Java implementations are software projects that implement Oracle's Java technologies and are distributed under free software licences, making them free software. Sun released most of its Java source code as free software in May 2007, so it can now almost be considered a free Java implementation. [ 1 ]

7. Design by contract - Wikipedia

   en.wikipedia.org/wiki/Design_by_contract

   Design by contract (DbC), also known as contract programming, programming by contract and design-by-contract programming, is an approach for designing software. It prescribes that software designers should define formal , precise and verifiable interface specifications for software components , which extend the ordinary definition of abstract ...