The appres program is also very helpful in checking that the resource settings that you make, actually reach the program for which they are intended in the correct form. Keyboard commands are associated with editor action routines through two separate mechanisms in NEdit. Commands which appear in pull-down menus have individual resources designating a keyboard equivalent to the menu command, called an accelerator key. Commands which do not have an associated menu item are bound to keys via the X toolkit translation mechanism.
The methods for changing these two kinds of bindings are quite different. The most general way to bind actions to keys in NEdit is to use the translation table associated with the text widget. Translation tables map key and mouse presses, window operations, and other kinds of events to actions.
The syntax for translation tables is simplified here, and you. A resource for changing a translation table consists of a keyword; override, augment, or replace; followed by lines separated by newline characters pairing events with actions. For key presses, the event type is followed by the name of the key. You can specify a combination of events, such as a sequence of key presses, by separating them with commas.
These are separated from the event specification by a colon and from each other by spaces. Actions are names followed by parentheses, optionally containing one or more parameters separated by comas. The menu shortcut keys shown at the right of NEdit menu items can also be changed via X resources. Each menu item has two resources associated with it, accelerator, the event to trigger the menu item; and acceleratorText, the string shown in the menu.
The form of the accelerator resource is the same as events for translation table entries discussed above, though multiple keys and other subtleties are not allowed. The resource name for a menu is the title in lower case, followed by "Menu", the resource name of menu item is the name in lower case, run together, with words separated by caps, and all punctuation removed. Xdefaults file:. Accelerator keys with optional shift key modifiers, like Find For example:. Patterns are the mechanism by which syntax highlighting see Syntax Highlighting under the heading of Features for Programming is programmed in NEdit, that is, how it decides what to highlight in a given language.
To create syntax highlighting patterns for a new language, or to modify existing patterns, select "Patterns for Highlighting" from "Syntax Highlighting" sub-section of the "Default Settings" sub-menu of the "Preferences" menu. First, a word of caution. As with regular expression matching in general, it is quite possible to write patterns which are so inefficient that they essentially lock up the editor as they recursively re-examine the entire contents of the file thousands of times.
With the multiplicity of patterns, the possibility of a lock-up is significantly increased in syntax highlighting. When working on highlighting patterns, be sure to save your work frequently. NEdit's syntax highlighting is unusual in that it works in real-time as you type , and yet is completely programmable using standard regular expression notation. Other syntax highlighting editors usually fall either into the category of fully programmable but unable to keep up in real-time, or real-time but limited programmability.
While the "Pattern Context Requirements" heading is near the end of this section, it is not optional, and must be understood before making any any serious effort at pattern writing. In its simplest form, a highlight pattern consists of a regular expression to match, along with a style representing the font an color for displaying any text which matches that expression.
To bold the word, "highlight", wherever it appears the text, the regular expression simply would be the word "highlight". The style selected from the menu under the heading of "Highlight Style" determines how the text will be drawn. To bold the text, either select an existing style, such as "Keyword", which bolds text, or create a new style and select it under Highlight Style.
The full range of regular expression capabilities can be applied in such a pattern, with the single caveat that the expression must conclusively match or not match, within the pre-defined context distance as discussed below under Pattern Context Requirements.
To match longer ranges of text, particularly any constructs which exceed the requested context, you must use a pattern which highlights text between a starting and ending regular expression match. To do so, select "Highlight text between starting and ending REs" under "Matching", and enter both a starting and ending regular expression. For example, to highlight everything between double quotes, you would enter a double quote character in both the starting and ending regular expression fields.
Patterns with both a beginning and ending expression span all characters between the two expressions, including newlines. Again, the limitation for automatic parsing to operate properly is that both expressions must match within the context distance stated for the pattern set. With the ability to span large distances, comes the responsibility to recover when things go wrong.
Remember that syntax highlighting is called upon to parse incorrect or incomplete syntax as often as correct syntax. To stop a pattern short of matching its end expression, you can specify an error expression, which stops the pattern from gobbling up more than it should. As with both starting and ending expressions, error expressions must also match within the requested context distance.
It is also possible to color areas of text within a regular expression match. A pattern of this type associates a style with sub-expressions references of the parent pattern as used in regular expression substitution patterns, see the NEdit Help menu item on Regular Expressions.
To install NEdit on Unix systems, simply put the nedit executable in your path. On some systems, the name nc may conflict with the 'netcat' program. In that case, choose a different name for the executable and simply rename it. The recommend alternative is 'ncl'. Don't forget to put the man-pages for nedit and nc into a place where your man command is able to find them e.
On VMS systems, nedit and nc must be defined as a foreign commands so that they can process command line arguments. For example, if nedit. To run NEdit, simply type 'nedit', optionally followed by the name of a file or files to edit. On-line help is available from the pulldown menu on the far right of the menu bar. For more information on the syntax of the nedit command line, look under the heading of "NEdit Command Line".
It allows you to edit multiple files within the same instance of NEdit but still in multiple windows. See "Server Mode and nc" in the help menu for more information. On VMS systems, the equivalent command is:. As of Lesstif 0. If you are having trouble building or running NEdit with LessTif, remember there are pre-compiled statically linked executables available from our website.
Known bugs which might show off in NEdit linked with LessTif include:. Some dialogs which are intended to be modal prevent other activity while up are not, and doing other actions while these dialogs are up can cause trouble. Switching to continuous wrap mode, sometimes the horizontal scroll remains partially drawn after the change, rather than disappearing completely as it should.
Red Hat Linux, as of version 8. Xdefaults file. Xdefaults will not be honored, for all X applications. Xdefaults, or link the files together. When XKeysymDB is missing, NEdit will spew screenfulls of messages about translation table syntax errors, and many keys won't work. There are comments in the makefile to help you do this correctly. Note that the developers use the OpenMotif 2. Beginning with IRIX 6. If you are re-installing NEdit for the entire system, just remove the existing app- defaults file.
If you want to run a newer copy individually, get a copy of the app-defaults file for this version the contrib sub-directory of the distribution directory for this version on ftp. In all cases, the file should be named simply 'NEdit'. No additional installation or resource settings are necessary on IRIX systems before 6. If this is not set properly, NEdit will spew screenfulls of messages about translation table syntax errors. Solaris 2. Depending on your system, the patch is one of ID , , or It affects all Motif based programs which use the library.
You can also set the X resource: nedit. Installing the patch alone will improve nedit's performance dramatically. Setting this to True will eliminate the delay completely. If you find that some of the labeled keys on your keyboard are not properly bound to the corresponding action in NEdit, try the following:. In general, NEdit will try to convert and insert entries to match the latest version. However, in certain cases where the user has customized the default entries, NEdit will leave them untouched except for possible syntactic conversions.
As a result, the latest syntax highlighting patterns for certain languages may not get activated, for instance, if the user has customized the entries. Next, some version specific upgrading issues are listed. Note that non-incremental upgrading eg. In NEdit 5.
This was rather unconventional and caused certain problems. You will need to be on Windows 11 Build or higher to access this feature. You can join the Windows Insiders Program to get the latest preview builds. To run Linux GUI apps, you should first install the preview driver matching your system below. If you have not already done so, install WSL and set up a user name and password for your Linux distribution. Once your machine has finished rebooting, installation will continue and you will be asked to enter a username and password.
This will be your Linux credential for the Ubuntu distribution. If you already have WSL installed on your machine, you can update to the latest version that includes Linux GUI support by running the update command from an elevated command prompt.
You will need to restart WSL for the update to take effect. You can run the following commands from your Linux terminal to download and install these popular Linux applications.
If you are using a different distribution than Ubuntu, it may use a different package manager than apt.
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