I am trying to debug a large system and the watch lists I add make no sense (to me). I can't find anywhere where the values are displayed. For example, I have an 2D array with a list of doubles, and when tracing through the 2D array, the values are shown through each loop, 1,2,3,4,5,etc... However, one I get to say 9, instead of going to 10, I get 0x00000a and have no idea what this value is unless I count in my head or with the loop. So short of counting 6000 loop iterations, what number is represented as: 0x00000695 or how can I just get the debugger to show the actual number and not some reference of it? 0x0000014 seems to be 20, and I don't know how I would effectively debug using this watch. Does anyone know how to stop this weird numeric representation? I just want to see the values of the 2D array as I go through the break points.
In watch window, right-click + toggle "display values as hexadecimal" to OFF. (sry, can't remember the exact setting name, but its there). – WhozCraig
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It seems like it's simply more straightforward to hard-code the text values. In an event that these values should be changed it seems like it would be more logical to search for the relevant UI element in each activity's xml layout file rather than look through the entire strings.xml. Of course if you have certain UI elements across multiple activities that all share the same text then this might be an exception (like a back button for instance), but generally there doesn't seem to be much advantage to storing these in the strings.xml. Am I missing something?
I will give you two reasons;
1 - Avoid duplication: all of your strings in one place. also, you can use string value many times. when you want to change it, there is one place to do the change. that makes it easier to maintain.
2 - Multi-language support: if you want to translate your strings to another language you must have all the strings in Strings.xml
let me know if you need more clarifications.
NOTE: Although I give a lot of info on Inquirer, I'm pretty sure that most of it won't apply (just being safe). For my actual question about curses, its at the bottom.
I'm using the Inquirer module in Python 3 to allow the user to select a value from a list. I run this:
import inquirer
choice = inquirer.prompt([inquirer.List("size",message="Which size do you need?",choices=["Large", "Medium", "Small"])
And I'm given this:
[?] What size do you need?: Medium
Large
> Medium
Small
And using the up and down keys, I can change my selection, and hit enter to choose, after which the "choice" variable contains the value I selected. The issue is: Once the selection is done, the choices still show. I want to delete them when done. I'm currently using ANSI Escape Codes to delete the choices from onscreen when done, where x is the number of choices:
import sys
for i in range (x+1):
sys.stdout.write('\x1b[1A')
sys.stdout.write('\x1b[2K')
Which leaves the printed text as:
[?] What size do you need?: Medium
The issue is, ANSI escape codes aren't universal. I want to use a solution that works on all terminals, preferably curses, but curses isn't very friendly to new users, so I was wondering if anyone knew how to use curses to "delete x lines above current position". Thanks!
curses, as such, would erase the whole display (which is probably not what you want). A low-level terminfo/termcap approach might seem promising, but while ECMA-48 does define a sequence (ED, with parameter 1) which erases above the current position, there is no predefined terminfo/termcap capability which corresponds to this. All that you will find there is the capability for erasing to the end of the screen, or erasing the whole screen.
"ANSI sequences" is an obsolete term. Referring to ECMA-48, you could do
sys.stdout.write('\x1b[1J')
after moving the cursor to the last location you would like to erase.
My goal:
I am trying to get the MS Keyboard Layout Creator to allow me to perform a carriage return/enter whenever I hit the [R-Arrow] key in combination with the [Control] key, but still have the [R-Arrow] key perform as normal (i.e. move one character right) when hit alone. I'm doing this because my laptop keyboard [Enter] key is busted, and I want use this hack for a short time, before I go ahead and get another keyboard. Yes, I know it might be easier to get a new one. :)
As far as I can tell, I have almost figured everything out. The only pieces of information I still need are the exact hexadecimal codepoints for both the 1) right arrow navigation and 2) enter/carriage-return. I am hoping someone can direct me to this info. I have found the unicode reference but I am unable to discern which codes I might use for the carriage return and the right arrow navigation (not the right arrow ascii character →, I don't care about that)
Example code in my existing KLC file:
KBD Layout01 "Layout01 Description"
COPYRIGHT "(c) 2017 Company"
COMPANY "Company"
LOCALENAME "en-US"
LOCALEID "00000409"
VERSION 1.0
SHIFTSTATE
0 //Column 4
1 //Column 5 : Shft
2 //Column 6 : Ctrl
LAYOUT ;an extra '#' at the end is a dead key
//SC VK_ Cap 0 1 2
//-- ---- ---- ---- ---- ----
39 SPACE 0 0020 0020 -1 // SPACE, SPACE, <none>
53 DECIMAL 0 002e 002e -1 // FULL STOP, FULL STOP,
My understanding of the code (SPACEBAR example)
Looking at the preexisting examples in the file, (the space and the decimal) I have figured out the following:
Note: the examples in parentheses below refer only to the spacebar.
The first number is the keyboard key (e.g. 39 above)
The word which follows that number is the designated label to refer to that key (e.g. SPACE above)
the next three numbers are hexadecimal codepoints/symbols which refer to "SHIFTSTATES"
The first is the codepoint for what the key will output if pressed while the CAPSLOCK is pressed.
The second is the codepoint for what the key will output if pressed simultaneously with the SHIFT key.
The third is the codepoint for what the key will output if pressed simultaneously with the CONTROL key.
The goal: figuring out the codes for right-arrow navigation and enter
I have figured out this much for my line of code that I want to add in order so that pressing the right key alone will still navigate right, but in wihc the combination "control-right" will instead trigger a carriage-return/enter
4d RIGHT 0 ??I don't know?? ??I don't know?? -1
I believe the I know following
4d (in the 1st column) is the key code for the right arrow key
the handle RIGHT (in the 2nd column) is the handle/name for the right arrow
0 (in the 3rd column means don't change the key if the capslock is pressed
What I need your help to figure out
What the codepoint/hexadecimal/unicode symbol is for performing a right arrow navigation (I think that is what goes in the fourth column if I want [Shift]-[Right-Arrow] to make the cursor move one character to the right).
What the codepoint/hexadecimal/unicode symbol is for performing a carriage-return/enter(I think that is what goes in the fifth column if I want [Control]-[Right-Arrow] to trigger an enter/carriage-return).
It may be that I am mistaken and the symbols I need are not unicode codepoints; if I am wrong, please correct me, as that info will help me get closer to my goal. Any help would be greatly appreciated!
I don't know if you still need this, as I had already written down most of it I post it.
I looked into it for a while, I haven't found an actual definitive answer but I can give you some hints (I post this as an answer nonetheless because it would have been too unwieldy to use comments).
I have a strong feeling that what you ask is not possible (that control keys such as the arrows cannot be mapped to different keys/characters/functions when a modifier such as ctrl is pressed).
I'm not really a huge expert in these things but I can give you some pointers:
(in the following there is a good deal of information not much related to your problem, but it might help you understand better)
When you press a key in Windows there are at least 3 sets of codes that are involved:
Scan codes: these are the codes that are actually generated by the hardware and sent to the pc. I have little knowledge of them, I never had a need to use them and I was too young when they were more relevant. They can theoretically vary from keyboard to keyboard but they're largely standardized; the USB keyboards are really standardized, for what I could understand, and their scan codes ought to be those listed in these HID Usage Tables (section 10). Wikipedia has some info but not a full list of the traditional codes. Most likely you won't need these, though (but maybe you will). By the way, these scan codes are also passed to the applications (I'm not sure how reliably) but they hardly ever use them.
Virtual-key codes: The scan codes in Windows are translated by the keyboard driver into a common set of key codes specified by Microsoft: the Virtual-Key Codes. These are independent by the keyboard and are what's (normally) used by the applications when they need to handle the single key presses.
Unicode, or other charset, characters: Windows recognizes when the keys being pressed are supposed to produce printable characters and passes these characters to the applications. At the times when an application is only interested in printable characters it only looks at these characters, although when they need to do more complex things (shortcuts...) they also have access to the virtual-key codes (and, if they really want, to the scan codes). Unicode is a character set, not a "key-codes set", so it generally contains only printable characters. To facilitate interoperability with ASCII and other legacy charsets it also includes the control characters defined in previous standards, but among these control characters the arrow keys are not present, so there are no unicode codepoints for the keyboard's arrows.
In the second column of the klc it would appear that you have to put the name of the virtual-key constant with VK_ removed. Quite weird indeed.
Several Microsoft documentation pages say that the WDK kbd.h file that you can also find in the inc directory of the Microsoft Keyboard Layout Creator has the detailed information about this stuff. Personally I couldn't make too much out of it, though.
If you really want to dig into this the late Michael Kaplan's blog has probably the information you're looking for, somewhere.
Your best luck is most likely to use some other application. I stumbled upon KbdEdit, that does handle the arrow keys, but it really seems that it can't assign a different function to the key when used with a modifier (but you can change the effect of the key altogether, irrespective of the pressed modifier).
For the Enter key you would likely need to use the virtual key, which is 0D (VK_RETURN).
The sequence of characters used to indicate line breaks on Windows is CR LF, which have (in Unicode and almost every other existing charset) codepoints 0D 0A, respectively.
The Windows message that notifies applications of entered characters (point 1.3 above - I mean the WM_CHAR message, by the way) though reports only a CR (0D) when you press Enter; so if those klf files use unicode codepoints in some part there's a good chance that they use that (CR) to indicate a Enter key.
All in all, your best bet is probably to just assign the Enter to a different key (for example a function key, the right ctrl or win key if you have them or the caps-lock).
I was wondering if someone could tell me why I can't directly change the values of my array idata instead I have to expand Raw View as can be seen in the picture.
This does not make sense and is annoying since it took me a few minutes and some time on google to find out that strange behavior ..
Is there a way to change that such that I am able to change the values more intuitively?
Here's something that's really irked me over the years. I've never used any software that, when importing data from a column-aligned text file, can figure out the column breaks in a correct manner.
Excel 2K3 and a lot of other Microsoft components that seem to share a common codebase (like the import options for SQL2K) attempt to figure out the column breaks for you. Unfortunately, they only look at the first n rows, and are often completely wrong.
OpenOffice.Org 3.1 has a import dialog almost exactly like Excel 2K3 but it doesn't even attempt to guess the column breaks for you. And the latest version of Numbers doesn't appear to handle column-aligned imports at all.
Obviously column-aligned data is undesirable for a number of reasons, but a lot of older software (particularly in-house software various companies have floating around) exports data in this format so I do need to handle it every so often. Surely, somewhere, SOME software imports it well without me coding an import utility myself or manually specifying where twelve zillion columns start and stop?
OSX, Windows, whatever. I'm open to suggestions. Ultimate goal is to get it into a SQL Server table, but simply getting it into a Excel/XML/tab-delimited/etc file in the meantime would be fine because it's easy enough to get into SQL Server from there.
I tend to normalize such data with awk -- perhaps generating a csv file -- before trying to import it into Excel.
See the awk user's manual.
I don't think there is a silver bullet for your request. I think the best you can hope for is to define your input format once and be able to reuse that format when you receive a file with the same format again.
As one poster mentioned you could use awk or, if .NET is more your thing, then you could use FileHelpers. It's an open source .NET library that does a good job reading and writing both Fixed length and delimited files. The downside is that you would be creating a .NET application to do the work (either inserting directly into a DB or perhaps creating an output file. On the plus side, once created, you could reuse the mapping classes again if you get the same file format.
Well obviously no software can be entirely correct in guessing the layout of a fixed column file, since there is no seperator (though variable width columns with higher maximum lengths will often produce enough space on the end to start guessing). For example the following could be anywhere from 1-9 columns (I have personally had to figure out some super packed fixed column layouts like this, only much longer)
135464876
647873159
345467575
If SQL Server is the ultimate destination, have you looked into the SQL Server import wizard?
Right click your database in Management Studio and select Tasks->Import Data. Proceed through and select "Flat File" as your data source. In the format dropdown change from Delimited to Fixed Width. On the left you can now use the Columns screen to draw the column seperators. There is also an advanced and preview screen.
Try out this demo (I was on development team):
Personator 4
Install, run the program, go to Tools | ASCII Conversion | Import from ASCII.
The import will be to DBF/FoxPro, but you can then export that file into one of the formats you mentioned.
The start/stop guesser uses a few statistical formulas to try to get the boundaries correct; you get to verify and/or correct with a graphical editor after analysis.
If you save your file as a text file and attempt to open
it in Microsoft Excel 2007 and select "Fixed Width",
Excel will "guess" where the breaks occur (based on
whitespace), but you can actually change where the column
field breaks will occur. The application has vertical lines that
can be moved left or right X characters. Excel
will "guess" where the breaks occur, but if it
guesses incorrectly, you can still change where the field breaks
should occur. On STEP 2 of the wizard, just move the
vertical lines to the left or right if you need
to change Excel's guesses as to where the field breaks
are. You can see which character number the field
break occurs in before importing.