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| == A Simple Portable Editor == | | == My prolog activities === |
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| | | * [[3rd:PROLEDIT]] Simple Portable Editor |
| I had the task to install programs on the computers connected to our database within the institute in the early 1990-s. It meant tapering the the CONFIG.SYS and AUTOEXEC.BAT. ''That time the built-in editors of the DOS were very user-unfriendly.''
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| '''Turbo Prolog, however, offered the very smart ''edit'' predicate opening an editor window.'''
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| This window could open auxiliary editor window.
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| The handling of the edited text wase based on pairs of function keys or three of them.
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| Like
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| copy block [Ctrl-F5]at block start[Ctrl-F5]at its end[Ctrl-F5]at its new place;
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| search and replace [F4]sought text[F4]replacement[F4].
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| '''The above function keys allow that the sought text and the replacement contain newline characters.''' (If you press enter then a triangle appears in them and you can define line groups to change.)
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| The English help screens are embedded in the ''edit'' predicate. [http://franknagy.atw.hu/Tipp/Proledit/proledit.hlp.htm The Hungarian help file is available on my homepage.]
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| See the whole stuff at http://franknagy.atw.hu/Tipp/Proledit/index.html.
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| [http://franknagy.atw.hu/Tipp/Proledit/index.html Main screen of the program on my homepage containing links to the executable program and sample screens.]
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| There you can see that the program starts with color selection for directory and edited file. Its command line parameter is a file name or wildcard mask for initial file selection. The mask can be changed by F4.
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| F10 saves the edited file. In case of pressing Esc a question appears: "File has been changed. Quit anyway (y/n)?"
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| --[[User:Ferenc Nagy|Frank]] 10:56, 5 October 2010 (CEST)
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