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An overview of scripting languages

An overview of scripting languages. Alexander Kanavin Teachers: Barbara Miraftabi, Jan Voracek. What are scripting languages?. Interpreted, never compiled Automatic memory handling High-level data types: lists, associative arrays Can access modules written in lower-level languages (C, C++)

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An overview of scripting languages

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  1. An overview of scripting languages Alexander Kanavin Teachers: Barbara Miraftabi, Jan Voracek

  2. What are scripting languages? • Interpreted, never compiled • Automatic memory handling • High-level data types: lists, associative arrays • Can access modules written in lower-level languages (C, C++) Most important: allow to treat code as data and vice versa

  3. Application areas • Command scripting languages • Application scripting languages • Markup languages • Universal scripting languages

  4. Command scripting • Control execution of programs and tasks • Shell language is the prime example

  5. Application scripting languages • End-user application programming • Visual Basic for Applications • Emphasis on user interface and components embedding • JavaScript

  6. Markup languages • Tags in text give instructions to the markup language processor • TeX • HTML • XML

  7. Universal scripting languages • Perl • Python • Tcl • Second wave: web services (PHP)

  8. Why are they important? • C and C++ do not manage memory • Allow to ’glue’ components together • Allow fast prototyping (no compilation) • Reduce complexity by allowing the use of the most appropriate tools for each subtask • Estimate: development is 5 times faster than C

  9. The future • Decline in use of C and C++ • An increasing use of dynamic languages • Commercial software development: no compile needed, development and testing is simplified • Scripting languages are likely to become extremely important

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