JETEDIT(1X) JETEDIT(1X)
NAME
jetedit - a ``C'' programmer's point and click editor.
SYNTAX
jetedit [filename]
DESCRIPTION
Jetedit is intended to be a programmer's editor, but is usable for
general purpose editing. It has a Mac like interface with the <Extend
char> key replacing the Mac <command> key, and duplicates the common
Mac editing commands. Other features it has:
+ Find and Replace
+ Goto line number
+ Tabbing in and out a block of text
+ Undo multiple edits
+ Finding matching delimiters
+ Automatic C syntax sensitive indenting, which can be easily
configured to suit the style you are used to.
OPTIONS
Jetedit recognizes the normal X Windows options such as font and
geometry. The only additional option it recognizes is a filename.
HOW IT WORKS
The most important feature is that edits can be undone. The number of
edits that can be undone is settable via an X resource. The default
is to remember the previous 20 edits, using a circular buffer. Select
Undo from the Edit menu or type <Ext>Z. Note that some editing
functions, such as tabbing a block of text, are remembered as multiple
edits, so you may need to undo multiple times to completely undo.
With the exception of undo, all the editing functions work just like a
Mac. This includes the existence of a clipboard. Text cut or copied
to the clipboard can not only be pasted between editors running on the
same host, but because of X Windows can also be pasted to an editor
running on a different host (the XmClipboard is used).
For non Mac users, a brief explanation:
+ Holding down the left mouse button and dragging the mouse will
select a block of text. For large blocks of text, click the
mouse at the beginning (or end) of the desired block of text,
move to the other end of the text, and hold down <Shift> while
clicking the mouse. The ends of the selected block can be
altered by <Shift> clicking again or dragging the mouse while
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JETEDIT(1X) JETEDIT(1X)
holding down the button.
+ Copy (from the Edit menu) will copy the selected block of text to
a ``clipboard'' in memory. Note that the ``Ext+C'' next to
``Copy'' in the menu means that copying can also be done by
holding down the <Ext> key and typing <C>. On some keyboards,
<Ext> may be have some other label such as <Alt>.
+ Cut will copy the text to the clipboard, and then delete it from
your document.
+ Clear (or the <Del> or <Backspace> key) will delete the text from
the document without altering the clipboard.
+ Paste will insert a copy of the text from the clipboard to the
current insertion point.
+ If a block of text is selected, and then you type a character or
paste from the clipboard, the selected block is overwritten. The
contents of the clipboard are not altered.
If the cursor is clicked immediately in front of a delimiter ()[]{} ,
and Match is selected from the Search menu, then the matching
delimiter will be found.
An entire block of text can be tabbed in or out by selecting the block
with the mouse, then typing <Tab> or shift<Tab>.
Ext<Home> will take you to the beginning of the file. Shift<Home>
will take you to the end of the file.
Selecting Open from the File menu will pop up a File Selection dialog
box. The dialog allows traversal up and down through the directory
structure using the mouse. Double clicking (clicking the left mouse
button twice rapidly) on a directory name in the Files area will move
you down into that directory. Double clicking on ``..'' will move you
up one directory. Double clicking on a filename will open that file.
Adding something like ``*.c'' in the File Filter window will cause the
dialog to only display *.c files, for example.
A number of features intended for programmers are included, and can be
easily varied to suit the format style you are used to. They are
controlled by resources that can be set in your .Xdefaults file or
with a dialog. Selecting Preferences from the Edit menu will pop up a
dialog to allow you to set the preferences. Then clicking the Help
button will pop up another dialog which will tell you exactly what
resources to use for the selected preferences.
Three indenting modes are available. Smart indenting will indent a
new line to the level of the previous line. Syntax sensitive
indenting attempts to make intelligent decisions about indenting and
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JETEDIT(1X) JETEDIT(1X)
outdenting according to the rules of C syntax, and according to a
number of selectable preferences for indenting style. You can also
choose no automatic indenting if desired.
X DEFAULTS
The following resources can be put in your ~/.Xdefaults or
usr/lib/X11/app-defaults/Jetedit file. Reasonable defaults are
supplied if no resources are specified.
background
I find that an overall background of ``Gray90'' is much easier on
the eyes than ``White''.
find_case.set
Setting this to True will set the default for text searches to
ignore text case.
fontList
It is best to select a fixed width font. The default is
``Fixed''.
infoFile
Specifying a filename with a complete path will cause that file
to be read into jetedit if no filename is specified on the
command line. This might be useful for informing users globally
of updates.
regular_exp.set
Setting this to True will set the default for text searches to
use regular expressions.
start_at_top.set
Setting this to True will set the default for text searches to
begin at the top of the file.
unselectColor
This determines the color used to indicate the unselected state
of the brackets in the preferences dialogs. A good color is
``Gray70''. It defaults to ``White''.
The following resources are easiest to determine by selecting
Preferences from the Edit menu and using the Help dialog to determine
the correct values to use.
bufferEntries
Determines the number of entries in the undo buffer. The default
is 20.
indent
Regular, smart, or C syntax sensitive indenting.
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JETEDIT(1X) JETEDIT(1X)
leadingTabs
A boolean determining whether to use spaces or tabs for leading
tabs. Leading tabs are tabs which are typed before any non-
whitespace on a line.
trailingTabs
All other tabs are trailing tabs.
spaces
Determines how many spaces to insert when a tab is typed if
either leadingTabs or trailingTabs is False.
openBrace
Determines how to indent opening braces.
closeBrace
Determines how to indent closing braces.
indentCase
A boolean which determines whether to indent case statements from
the level of the switch statement.
TRANSLATIONS
Jetedit defines the following translations for the main editing
window.
<Key>Return: NewLine()
Shift<Key>Home: ToBottom()
Meta<Key>Home: ToTop()
Shift<Key>Tab: OutdentText()
<Key>Tab: IndentText()
:<Key>braceright: RightBrace()
:<Key>braceleft: LeftBrace()
ACTION ROUTINES
Jetedit defines the following action routines.
NewLine()
When in smart or syntax indenting mode, determines the number of
tabs or spaces to insert and inserts them.
ToBottom()
Moves the cursor to the bottom of the file.
ToTop()
Moves the cursor to the top of the file.
IndentText()
If a block of text is selected, indents each line in the block
one tab stop. Else inserts one tab stop at current cursor
position.
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JETEDIT(1X) JETEDIT(1X)
OutdentText()
If a block of text is selected, outdents each line in the block
one tab stop. Else deletes one tab stop at current cursor
position.
RightBrace()
Inserts a right brace, outdenting if appropriate for the selected
editing style.
LeftBrace()
Inserts a left brace, outdenting if appropriate for the selected
editing style.
CutItem()
Copies the selected block of text to the clipboard, then deletes
it from the text window.
CopyItem()
Copies the selected block of text to the clipboard.
PasteItem()
Overwrites the selected block of text with the contents of the
clipboard.
COPYRIGHTS
(c) Copyright 1997 by Duane Clark.
See the jetedit source file copyright.h for a full copyright notice.
AUTHORS
Duane Clark - Duane.Clark@jpl.nasa.gov
Jim Campbell - jec@milne.boeing.com - contributed regular expression
text searches.
David W. Sanderson - dws@ssec.wisc.edu - did significant work to
improve the formatting of the man page.
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