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xwpe, xwe, wpe, we - X-Window Programming Environment
xwpe [ options ] file ... xwe [ options ] file ... wpe [ options ] file ... we [ options ] file ...
Errors that occur while compiling and linking a program can be examined in the sources. The cursor will jump to the corresponding line in the source-file. Programs using more than one source-file can be managed with the so called "project-option" (see also project-file). The program can be started from within the Programming-Environment and errors may be found using a debugger. The debugging-environment allows the user to set and unset breakpoints directly in the source code. The contents of variables may be displayed in a special window, the Watch-Window. This window is updated while reaching a breakpoint. The Stack-Window displays the program stack.
Help is available for xwpe and the man-pages installed on the system may be displayed. All this can be reached via the help-functions.
The editor may be used to edit up to 35 files at the same time. They are all displayed in a window of their own. A mouse is used to select special editor functions from the top menu. These functions can also be selected by hitting a special key or combinations of keys. Some of these features are a complete search and replace function (yes, it can search for regular expressions) and a file-manager. The file-manager is used to open, copy, rename and move or delete files.
The X-window programming environment can be used without the special programming features. If it is invoked as `xwe' (`we' if used with a character terminal) it can be used as an editor e.g. for shell-programming.
The following standard X command line options are available for the X-Window versions.
On startup (subject to the -sf and -so options), xwpe reads the personal initialization file $HOME/.xwpe/xwperc. If no such file exists, the system wide initialization file, /usr/local/lib/xwpe/xwperc, is read. If neither file exists, the default options will be used.
xwperc is a text file written by the programming environment. Although modification by hand is possible comments will be erased if the options are latter saved from within xwpe.
The following resources are available. The application name is either "xwe" or "xwpe". Both belong to the "Xwpe" class.
Xwpe supports the syntax of a language by using different colors to display keywords, constants, preprocessor, comments, operators and everything else. This support is defined already for the programming languages C, C++, and FORTRAN. More languages can be added to the user's syntax definition file, $HOME/.xwpe/syntax_def. The syntax of any predefined language can also be overridden. If no personal syntax definition file exists, the system definition file, /usr/local/lib/xwpe/syntax_def, will be used.
Each syntax highlighting is distinguished by the file extension. The syntax_def uses the following format for language definition.
"string: The postfix for the filename."
"integer: The number of keywords."
"strings: The keywords."
"integer: Number of operators with more than one
character length."
"strings: Operators with more than one character
length."
"string: Operators containing one character."
"string: Beginning of comment"
"string: End of comment"
"string: Beginning of comment reaching until the end
of the line."
"string: Characters used for comments depending on the
column."
"string: Special single characters."
"integer: Column for comments (-1 for none)."
"integer: Column for continuing line (-1 for none)"
"Integer: Column for comment till the end of line (1000
for none)"
Strings and integers are separated by blanks or carriage returns. The strings used for single character operators and for column depending comments must not contain blanks. All strings used for comments can contain NULL to indicate that there is no such comment. An integer can be zero if there is no keyword or multiple character operators. The string for special single characters contains the following fields:
Character for string-constants
Character for character-constants
Character for preprocessor-commands
Character for quoting the next character
Character for next line is continuing line
(if it is the last character in the line)
Character (if not empty: the language is not
case sensitive)
If one character is not defined (e.g. missing) a blank is inserted at the corresponding position.
An example:
.c
32
auto break case char const continue default do
double else enum extern float for goto if int
long register return short signed sizeof static
struct switch typedef union unsigned void volatile
while
0
~^()[]{}<>+-/*%=|&!.?:,; /* */ NULL NULL "'#\ -1 -1 1000
.f
64
ACCESS ASSIGN BACKSPACE BLANK BLOCKDATA CALL CHARACTER
CLOSE COMMON COMPLEX CONTINUE DATA DIMENSION DIRECT DO
DOUBLE PRECISION ELSE END ENDFILE ENTRY EQUIVALENCE ERR
EXIST EXTERNAL FILE FMT FORM FORMAT FORMATTED FUNCTION
GOTO IF IMPLICIT INQUIRE INTEGER INTRINSIC IOSTAT
LOGICAL NAME NAMED NEXTREC NUMBER OPEN OPENED
PARAMETER PAUSE PRINT PROGRAM READ REAL REC RECL
RETURN REWIND SAVE SEQUENTIAL STATUS STOP SUBROUTINE
TO UNFORMATED UNIT WRITE
13
.AND. .EQ. .EQV. .FALSE. .GE. .GT. .LE. .LT. .NE.
.NEQV. .NOT. .OR. .TRUE.
()+-/*=$.:, NULL NULL ! C* ' 1 0 5 72
Unsure if the column for continuing previous line is working. Information on how to test this and what the result should be would be greatly appreciated.
Documentation hasn't been updated.
Compilers are assumed to have a -c and -o option. This causes problems for those who wish to use java, perl, or other languages.
make install installs x versions even if not compiled in.
Adding items when no project is open has odd behavior.
Changing the maximum column and using cut & paste can crash xwpe.
Clicking "edit" in the project menu when not on a file it loads a file with a name of " ".
Esc key requires 3 presses to do the regular escape function under Linux console (and perhaps other terminal types).
No error for disk full.
Check headers doesn't correctly handle comments and "ifndef" protection.
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