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Author:halw

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Date:2009-12-21T19:59:51.000000Z


git-svn-id: https://svn.eiffel.com/eiffel-org/trunk@374 abb3cda0-5349-4a8f-a601-0c33ac3a8c38
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halw
2009-12-21 20:38:38 +00:00
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documentation/current/solutions/basic-computing/eiffelbase/ifell.wiki
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@@ -11,7 +11,7 @@ We hope that others will be inspired by this example to release their own reusab
==Preamble==
(This Preamble is not part of the license.)
EiffelBase is one of the principal contributions of Eiffel: a library of fundamental structures and algorithms covering the basics of computing, and resulting from a "Linnaean" effort at a general-purpose taxonomy of computing structures. We believe that EiffelBase is one of the most carefully designed and extensively used libraries in the object-oriented industry. The library and its design principles are described in detail in the book [http://www.eiffel.com/doc/ ''Reusable Software: The Base Object-Oriented Component Libraries'' ] .
EiffelBase is one of the principal contributions of Eiffel: a library of fundamental structures and algorithms covering the basics of computing, and resulting from a "Linnaean" effort at a general-purpose taxonomy of computing structures. We believe that EiffelBase is one of the most carefully designed and extensively used libraries in the object-oriented industry. The library and its design principles are described in detail in the book [http://www.eiffel.com/services/training/books.html ''Reusable Software: The Base Object-Oriented Component Libraries'' ] .
EiffelBase is at the center of Eiffel Software's Eiffel and has been among the major factors attracting users to the technology. In spite of this competitive advantage, Eiffel Software officially announced in June of 1998 that it would release the library to the public in source form, under the terms of the license below. There are two main reasons for this initiative:
* As the software industry seems poised to adopt the idea of reusable components, we feel that EiffelBase provides an ideal basis and are happy to contribute it to the community.
@@ -72,7 +72,7 @@ This is the official license text.
* Distribute entire classes, not just extracts.
* Retain, in the distributed version, the entire copyright notice of these classes.
* If you need to make any modification to the classes, mark those modifications clearly in the class texts.
* <span id="valid_eiffel"></span> Ensure that the text remains valid Eiffel. Note that this license does not authorize you to distribute versions of the Library restated in other programming, analysis or design languages, except if mechanically translated from the source form by an Eiffel compiler, in which case they fall under "object form". For any non-mechanical adaptation to other languages you must obtain authorization from Eiffel Software. "Valid Eiffel" includes the language described in the latest edition or printing of the book [http://www.eiffel.com/services/training/books.html ''Eiffel: The Language'' ] (Prentice Hall), plus any changes or extensions that have been approved by the Nonprofit International Consortium for Eiffel (NICE) or have been accepted for discussion by the Language Committee of NICE, provided they are accepted by the reference implementation.
* <span id="valid_eiffel"></span> Ensure that the text remains valid Eiffel. Note that this license does not authorize you to distribute versions of the Library restated in other programming, analysis or design languages, except if mechanically translated from the source form by an Eiffel compiler, in which case they fall under "object form". For any non-mechanical adaptation to other languages you must obtain authorization from Eiffel Software. "Valid Eiffel" includes the language described in the latest edition or printing of the book [http://docs.eiffel.com/book/method/eiffel-language ''Eiffel: The Language'' ] (Prentice Hall), plus any changes or extensions that have been approved by the Nonprofit International Consortium for Eiffel (NICE) or have been accepted for discussion by the Language Committee of NICE, provided they are accepted by the reference implementation.
* <span id="obsolete_version"></span> If Eiffel Software releases a new version of the Library, you must, no later than six months after the release of that version, either: (A) update your distribution to the new version; (B) add the following notice to all files in your distribution:" ''This is an obsolete version of EiffelBase. The latest version is available from http://eiffel.com''"; or (C) cease distributing your version.

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documentation/current/solutions/text-processing/eiffelparse/eiffelparse-tutorial.wiki
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@@ -113,7 +113,7 @@ Conditional [=] if Then_part_list [Else_part] end
This means that a specimen of Conditional (a conditional instruction) is made of the keyword <code>if</code>, followed by a specimen of Then_part_list, followed by zero or one specimen of Else_part (the square brackets represent an optional component), followed by the keyword <code>end</code>.
{{note|This notation for productions uses conventions similar to those of the book Eiffel: The Language. Keywords are written in '''boldface italics''' and stand for themselves. Special symbols, such as the semicolon, are written in double quotes, as in ";". The <nowiki>[=]</nowiki> symbol means "is defined as" and is more accurate mathematically than plain <nowiki>=</nowiki>, which, however, is often used for this purpose (see "Introduction to the Theory of Programming Languages", Prentice Hall, 1991, for a more complete discussion of this issue). }}
{{note|This notation for productions uses conventions similar to those of the book ''Eiffel: The Language''. Keywords are written in '''boldface italics''' and stand for themselves. Special symbols, such as the semicolon, are written in double quotes, as in ";". The <nowiki>[=]</nowiki> symbol means "is defined as" and is more accurate mathematically than plain <nowiki>=</nowiki>, which, however, is often used for this purpose (see "Introduction to the Theory of Programming Languages", Prentice Hall, 1991, for a more complete discussion of this issue). }}
A choice production defines a construct whose specimens are specimens of one among a number of specified constructs. For example, the production for construct Type in an Eiffel grammar may read:
<code>