Can you parse an array of string characters into separate arrays?

Hello,
I didn't see anything directly related to my question, so I'll go ahead and post it. I'm looking to parse an array of hex characters into three separate arrays for parallel Color to RGB conversion in LabView. Ideally, after importing an image, I would have liked to use the Color to RGB conversion for the 24-bit pixmap (in hex digit format), but apparently, you can only do this for single number conversions...not arrays. Another way is what I have mentioned above, which would be to parse each element's red, green, and blue # into three separate arrays as shown below:
Original Array:   aa11ff     225599
                          cc4488   bbcc11
Array 1: aa 22
             cc   bb
Array 2: 11   55
              44   cc
Array 3: ff    99
              88   11
I could then do a parallel conversion of these arrays from hex to numeric and get the desired result. However, I'm having trouble finding a function that will do this. So I would like to ask if a function like this does exist and if so, what is it? I should note that I'm trying to avoid using two while loops because of time constraints (using the program for in-situ measurements), and we do not own, nor are we looking to purchase the $$$ vision/video package that NI makes.

Nevermind. I found an adequate way.

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Message Edited by altenbach on 05-01-2009 08:45 PM
LabVIEW Champion . Do more with less code and in less time .
Attachments:
PlotNamesII.png ‏7 KB

PL/SQL function to read a string of characters into an array

I was wondering if there is an easier way than using the substr function multiple times. Here is the example:
Suppose you have a varchar2 variable that contains the word 'Apple'. The function should take it and produce an array. We would invoke it like this:
<what data structure?> a := stringunpackerfunction(x);
// x is the varchar2 containing 'Apple'.
The resulting a would be such that a[0] is 'A', a[1] is 'p', a[2] is 'p', a[3] is 'l' and a[4] is 'e'.
If there is no direct function to do this in a single invocation, is there a function to simply read a string of characters and return 'the next character'?
Thanks,
Regards,
Srini

There is a procedure out there called PS_PARSE which takes a string and converts to an array provided with an identified separator. Works for us pretty well.
I just grabbed this off of google. I am presuming this should work fine. It has been sometime since we implemented ours that I forget if there were any additional modifications that we made. I think there was one regarding the size of the string that could be handled. I forget precisely. Anyways... take a peek at it. Its makes things easy in that your logic is pretty streamlined.
Barry C
http://www.myoracleportal.com
create or replace PACKAGE PS_Parse
IS
 || PL/SQL table structures to hold atomics retrieved by parse_string.
 || This includes the table type definition, a table (though you can
 || declare your own as well, and an empty table, which you can use
 || to clear out your table which contains atomics.
 TYPE atoms_tabtype IS TABLE OF VARCHAR2(60) INDEX BY BINARY_INTEGER;
 atoms_table atoms_tabtype;
 empty_atoms_table atoms_tabtype;
 || The standard list of delimiters. You can over-ride these with
 || your own list when you call the procedures and functions below.
 || This list is a pretty standard set of delimiters, though.
 std_delimiters VARCHAR2 (50) := ' !@#$%^&*()-_=+\|`~{{]};:''",<.>/?';
 /* Display contents of table using DBMS_OUTPUT */
 PROCEDURE display_atomics
 (table_in IN atoms_tabtype, num_rows_in IN NUMBER);
 || The parse_string procedure: I provide two, overloaded definitions.
 || The first version puts all atomics into a PL/SQL table and would
 || be used in a PL/SQL Version 2 environment. The second version places
 || all atomics into a string, separating each atomic by a vertical bar.
 || (My code does NOT do any special handling when it finds a "|" in
 || the string. You have to deal with that when you extract the atomics.
 ||
 || See the program definition for more details on other parameters.
 PROCEDURE parse_string
 (string_in IN VARCHAR2,
 atomics_list_out OUT atoms_tabtype,
 num_atomics_out IN OUT NUMBER,
 delimiters_in IN VARCHAR2 := std_delimiters);
 PROCEDURE parse_string
 (string_in IN VARCHAR2,
 atomics_list_out IN OUT VARCHAR2,
 num_atomics_out IN OUT NUMBER,
 delimiters_in IN VARCHAR2 := std_delimiters);
 /* Count the number of atomics in a string */
 FUNCTION number_of_atomics
 (string_in IN VARCHAR2,
 count_type_in IN VARCHAR2 := 'ALL',
 delimiters_in IN VARCHAR2 := std_delimiters)
 RETURN INTEGER;
 /* Return the Nth atomic in the string */
 FUNCTION nth_atomic
 (string_in IN VARCHAR2,
 nth_in IN NUMBER,
 count_type_in IN VARCHAR2 := 'ALL',
 delimiters_in IN VARCHAR2 := std_delimiters)
 RETURN VARCHAR2;
END PS_Parse;
create or replace PACKAGE BODY PS_Parse
IS
/* Package variables used repeatedly throughout the body. */
len_string NUMBER;
start_loc NUMBER;
next_loc NUMBER;
|| Since the PUT_LINE procedure regards a string of one or more
|| spaces as NULL, it will not display a space, which is in
|| PS_Parse a valid atomic. So I save a_blank in the PL/SQL
|| table instead of the space itself.
a_blank CONSTANT VARCHAR2(3) := '" "';
/*--------------------- Private Modules ---------------------------
|| The following functions are available only to other modules in
|| package. No user of PS_Parse can see or use these functions.
FUNCTION a_delimiter
(character_in IN VARCHAR2,
delimiters_in IN VARCHAR2 := std_delimiters)
RETURN BOOLEAN
|| Returns TRUE if the character passsed into the function is found
|| in the list of delimiters.
IS
BEGIN
RETURN INSTR (delimiters_in, character_in) > 0;
END;
FUNCTION string_length (string_in IN VARCHAR2)
RETURN INTEGER
IS
BEGIN
RETURN LENGTH (LTRIM (RTRIM (string_in)));
END;
FUNCTION next_atom_loc
(string_in IN VARCHAR2,
start_loc_in IN NUMBER,
scan_increment_in IN NUMBER := +1)
|| The next_atom_loc function returns the location
|| in the string of the starting point of the next atomic (from the
|| start location). The function scans forward if scan_increment_in is
|| +1, otherwise it scans backwards through the string. Here is the
|| logic to determine when the next atomic starts:
||
|| 1. If current atomic is a delimiter (if, that is, the character
|| at the start_loc_in of the string is a delimiter), then the
|| the next character starts the next atomic since all
|| delimiters are a single character in length.
||
|| 2. If current atomic is a word (if, that is, the character
|| at the start_loc_in of the string is a delimiter), then the
|| next atomic starts at the next delimiter. Any letters or
|| numbers in between are part of the current atomic.
||
|| So I loop through the string a character at a time and apply these
|| tests. I also have to check for end of string. If I scan forward
|| the end of string comes when the SUBSTR which pulls out the next
|| character returns NULL. If I scan backward, then the end of the
|| string comes when the location is less than 0.
RETURN NUMBER
IS
/* Boolean variable which uses private function to determine
|| if the current character is a delimiter or not.
was_a_delimiter BOOLEAN :=
PS_Parse.a_delimiter (SUBSTR (string_in, start_loc_in, 1));
/* If not a delimiter, then it was a word. */
was_a_word BOOLEAN := NOT was_a_delimiter;
/* The next character scanned in the string */
 next_char VARCHAR2(1);
|| The value returned by the function. This location is the start
|| of the next atomic found. Initialize it to next character,
|| forward or backward depending on increment.
return_value NUMBER := start_loc_in + scan_increment_in;
BEGIN
LOOP
-- Extract the next character.
next_char := SUBSTR (string_in, return_value, 1);
-- Exit the loop if:
EXIT WHEN
/* On a delimiter, since that is always an atomic */
a_delimiter (next_char)
OR
/* Was a delimiter, but am now in a word. */
(was_a_delimiter AND NOT a_delimiter (next_char))
OR
/* Reached end of string scanning forward. */
next_char IS NULL
OR
/* Reached beginning of string scanning backward. */
return_value < 0;
/* Shift return_value to move the next character. */
return_value := return_value + scan_increment_in;
END LOOP;
-- If the return_value is negative, return 0, else the return_value
RETURN GREATEST (return_value, 0);
END;
PROCEDURE increment_counter
(counter_inout IN OUT NUMBER,
count_type_in IN VARCHAR2,
atomic_in IN CHAR)
|| The increment_counter procedure is used by nth_atomic and
|| number_of_atomics to add to the count of of atomics. Since you
|| can request a count by ALL atomics, just the WORD atomics or
|| just the DELIMITER atomics. I use the a_delimiter function to
|| decide whether I should add to the counter. This is not a terribly
|| complex procedure. I bury this logic into a separate module,
however,
|| to make it easier to read and debug the main body of the programs.
IS
BEGIN
IF count_type_in = 'ALL' OR
(count_type_in = 'WORD' AND NOT a_delimiter (atomic_in)) OR
(count_type_in = 'DELIMITER' AND a_delimiter (atomic_in))
THEN
counter_inout := counter_inout + 1;
END IF;
END increment_counter;
/* ------------------------- Public Modules -----------------------*/
PROCEDURE display_atomics
(table_in IN atoms_tabtype, num_rows_in IN NUMBER)
|| Program to dump out contents of table. Notice I must also pass in
|| the number of rows in the table so that I know when to stop the
|| loop. Otherwise I will raise a NO_DATA_FOUND exception. For a more
|| elaborate display_table module, see Chapter 7 on PL/SQL tables.
IS
BEGIN
FOR table_row IN 1 .. num_rows_in
LOOP
DBMS_OUTPUT.PUT_LINE (NVL (table_in (table_row), 'NULL'));
END LOOP;
END;
PROCEDURE parse_string
(string_in IN VARCHAR2,
atomics_list_out OUT atoms_tabtype,
num_atomics_out IN OUT NUMBER,
delimiters_in IN VARCHAR2 := std_delimiters)
|| Version of parse_string which stores the list of atomics
|| in a PL/SQL table.
||
|| Parameters:
|| string_in - the string to be parsed.
|| atomics_list_out - the table of atomics.
|| num_atomics_out - the number of atomics found.
|| delimiters_in - the set of delimiters used in parse.
IS
BEGIN
/* Initialize variables. */
num_atomics_out := 0;
len_string := string_length (string_in);
IF len_string IS NOT NULL
THEN
|| Only scan the string if made of something more than blanks.
|| Start at first non-blank character. Remember: INSTR returns 0
|| if a space is not found. Stop scanning if at end of string.
start_loc := LEAST (1, INSTR (string_in, ' ') + 1);
WHILE start_loc <= len_string
LOOP
|| Find the starting point of the NEXT atomic. Go ahead and
|| increment counter for the number of atomics. Then have to
|| actually pull out the atomic. Two cases to consider:
|| 1. Last atomic goes to end of string.
|| 2. The atomic is a single blank. Use special constant.
|| 3. Anything else.
next_loc := next_atom_loc (string_in, start_loc);
num_atomics_out := num_atomics_out + 1;
IF next_loc > len_string
THEN
-- Atomic is all characters right to the end of the string.
atomics_list_out (num_atomics_out) :=
SUBSTR (string_in, start_loc);
ELSE
|| Internal atomic. If RTRIMs to NULL, have a blank
|| Use special-case string to stuff a " " in the table.
atomics_list_out (num_atomics_out) :=
NVL (RTRIM (SUBSTR (string_in,
start_loc, next_loc-start_loc)),
 a_blank);
END IF;
-- Move starting point of scan for next atomic.
start_loc := next_loc;
END LOOP;
END IF;
END parse_string;
PROCEDURE parse_string
(string_in IN VARCHAR2,
atomics_list_out IN OUT VARCHAR2,
num_atomics_out IN OUT NUMBER,
delimiters_in IN VARCHAR2 := std_delimiters)
|| The version of parse_string which writes the atomics out to a packed
|| list in the format "|A|,|C|". I do not repeat any of the comments
|| from the first iteration of parse_string.
IS
BEGIN
/* Initialize variables */
num_atomics_out := 0;
atomics_list_out := NULL;
len_string := string_length (string_in);
IF len_string IS NOT NULL
THEN
start_loc := LEAST (1, INSTR (string_in, ' ') + 1);
WHILE start_loc <= len_string
LOOP
next_loc := next_atom_loc (string_in, start_loc);
num_atomics_out := num_atomics_out + 1;
IF next_loc > len_string
THEN
atomics_list_out := atomics_list_out || '|' ||
SUBSTR (string_in, start_loc);
ELSE
atomics_list_out :=
atomics_list_out || '|' ||
NVL (RTRIM (SUBSTR (string_in,
start_loc, next_loc-start_loc)),
 a_blank);
END IF;
start_loc := next_loc;
END LOOP;
/* Apply terminating delimiter to the string. */
atomics_list_out := atomics_list_out || '|' ;
END IF;
END parse_string;
FUNCTION number_of_atomics
(string_in IN VARCHAR2,
count_type_in IN VARCHAR2 := 'ALL',
delimiters_in IN VARCHAR2 := std_delimiters)
RETURN INTEGER
|| Counts the number of atomics in the string_in. You can specify the
|| type of count you want: ALL for all atomics, WORD to count only the
|| words and DELIMITER to count only the delimiters. You can optionally
|| pass your own set of delimiters into the function.
IS
return_value INTEGER := 0;
BEGIN
/* Initialize variables. */
len_string := string_length (string_in);
IF len_string IS NOT NULL
THEN
|| This loop is much simpler than parse_string. Call the
|| next_atom_loc to move to the next atomic and increment the
|| counter if appropriate. Everything complicated is shifted into
|| sub-programs so that you can read the program "top-down",
|| understand it layer by layer.
start_loc := LEAST (1, INSTR (string_in, ' ') + 1);
WHILE start_loc <= len_string
LOOP
increment_counter (return_value, UPPER (count_type_in),
SUBSTR (string_in, start_loc, 1));
start_loc := next_atom_loc (string_in, start_loc);
END LOOP;
END IF;
RETURN return_value;
END number_of_atomics;
FUNCTION nth_atomic
(string_in IN VARCHAR2,
nth_in IN NUMBER,
count_type_in IN VARCHAR2 := 'ALL',
delimiters_in IN VARCHAR2 := std_delimiters)
RETURN VARCHAR2
|| Find and return the nth atomic in a string. If nth_in is greater
|| the number of atomics, then return NULL. If nth_in is negative the
|| function counts from the back of the string. You can again request
|| a retrieval by ALL atomics, just the WORDs or just the DELIMITER.
|| So you can ask for the third atomic, or the second word from the end
|| of the string. You can pass your own list of delimiters as well.
IS
/* Local copy of string. Supports up to 1000 characters. */
local_string VARCHAR2 (1000) :=
LTRIM (RTRIM (SUBSTR (string_in, 1, 1000)));
/* Running count of atomics so far counted. */
atomic_count NUMBER := 1;
/* Boolean variable which controls the looping logic. */
still_scanning BOOLEAN :=
local_string IS NOT NULL AND nth_in != 0;
/* The amount by which I increment the counter. */
scan_increment INTEGER;
/* Return value of function, maximum length of 100 characters. */
return_value VARCHAR2 (100):= NULL;
BEGIN
IF nth_in = 0
THEN
/* Not much to do here. Find 0th atomic? */
RETURN NULL;
ELSE
/* Initialize the loop variables. */
len_string := string_length (local_string);
IF nth_in > 0
THEN
/* Start at first non-blank character and scan forward. */
next_loc := 1;
scan_increment := 1;
ELSE
/* Start at last non-blank character and scan backward. */
next_loc := len_string;
scan_increment := -1;
END IF;
/* Loop through the string until the Boolean is FALSE. */
WHILE still_scanning
LOOP
/* Move start of scan in string to loc of last atomic. */
start_loc := next_loc;
/* Find the starting point of the next atomic. */
next_loc :=
next_atom_loc (local_string, start_loc, scan_increment);
/* Increment the count of atomics. */
increment_counter
(atomic_count,
UPPER (count_type_in),
SUBSTR (local_string, start_loc, 1));
|| Keep scanning if my count hasn't exceeded the request
|| and I am neither at the beginning nor end of the string.
still_scanning :=
atomic_count <= ABS (nth_in) AND
next_loc <= len_string AND
next_loc >= 1;
END LOOP;
|| Done with the loop. If my count has not exceeded the requested
|| amount, then there weren't enough atomics in the string to
|| satisfy the request.
IF atomic_count <= ABS (nth_in)
THEN
RETURN NULL;
ELSE
|| I need to extract the atomic from the string. If scanning
|| forward, then I start at start_loc and SUBSTR forward.
|| If I am scanning backwards, I start at next_loc+1 (next_loc
|| is the starting point of the NEXT atomic and I want the
|| current one) and SUBSTR forward (when scanning in
|| reverse, next_loc comes before start_loc in the string.
IF scan_increment = +1
THEN
RETURN
SUBSTR (local_string, start_loc, next_loc - start_loc);
ELSE
RETURN
SUBSTR (local_string, next_loc+1, start_loc - next_loc);
END IF;
END IF;
END IF;
END nth_atomic;
END PS_Parse;
/

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 http://www.webritesolutions.com/Test/upload/tryingto.JPG
 
 I want to "Upload" button to go next to the "Update record" button. When I do this I get a javascript error and the "Update record" button is disabled.
 Here is the code of what I tried to do:
 
 
 
 
 
<table>
<tr class="KT_buttons">
<td>
<?php // Multiple Upload Helper echo $muploadHelper->Execute(); ?>
</td>
<td colspan="1">
<input type="submit" name="KT_Update1" id="KT_Update1" value="Update record" />
 </td>
</tr>
</table>
 
 Here is the Javascript error:
 http://www.webritesolutions.com/Test/upload/error.JPG
 
 thanks for your help.

A control can only appear once in the visual tree. So you have to remove it from the Grid before you can add it to the DockPanel.
This code will move the Border element from the Grid to the DockPanel when you click the button:
Private Sub Button_Click(sender As Object, e As RoutedEventArgs)
Dim border = CType(LayoutRoot.FindName("myborder"), Border)
LayoutRoot.Children.Remove(border)
contain.Children.Add(border)
End Sub
<StackPanel>
<Grid x:Name="LayoutRoot">
<Border x:Name="myborder" BorderBrush="Black" BorderThickness="2">
<TextBlock>...</TextBlock>
</Border>
</Grid>
<DockPanel x:Name="contain" Background="Yellow">
<TextBlock>2</TextBlock>
</DockPanel>
<Button Click="Button_Click" Content="Move"/>
</StackPanel>
You can try it for yourself. But please post your code as formatted text and not as embedded images if you want anyone to be able to reproduce your issue and help you in the future.
Please remember to close your threads by marking helpful posts as answer.

Can you turn the photos in a slideshow into a video clip?

I have a sequence of 80 or so photos that play very fast and create an animation.
Can I select all the photos and merge them together into a video clip so I can apply video effects and do a fade in for more than 2 frames?

Colin, will doing the method you described allow me to apply video effects to the photos as a whole group?
That's correct. The nested sequence essentially functions as one clip, so you can edit it, transform it, add effects or transitions, or do any other operation that you'd do on a single clip unit. For example, if you need to move your series of photos somewhere else in your sequence, you'd have to select all of them; if they're nested, you just have to click one big target to move them.
I think Craig (shooternz) misunderstood your question, and assumed you just wanted to fade up the first photo, but you're talking about fading up over a longer duration, and multiple images. He had the right answer to a different question

Can you fit in a 7200rpm hard drive into a macbook?

mac book pro is expensive.
my main concern about the black macbook is that the hard drive is less than 7200rpm. music software pro tools says to use 7200rpm drives.
so is there a way to put one in? it doesnt seem to be an option to upgrade on mac shop.
pro is expensive!
thanks

Aaron Michalczuk wrote:
Personally, I would recommend you try newegg.com they usually have very good deals. All you need to look for is a 2.5 inch hard drive (usually called a notebook drive or laptop drive). It also should be SATA. Other than that you can just look for whatever specs you would like. I would recommend Western Digital, Seagate, or Samsung as excellent brands. However, for the most part it wont matter too much. I recommend newegg, because it is the largest online computer retailer in the world (i think) and all of their products have good reviews so you can read up on how the hard drives have worked for other people. The hard drive that came stock in my macbook is a Fujitsu which is just another manufacturer. I would base your decision off of the specs and the ratings, not the manufacturer. Just remember 2.5" SATA
I bought from my 200 GB Travelstar 7K200 from Newegg myself. That being said, I doubt Newegg is the largest online computer retailer in the world; they've got an annual revenue rate of just under $2 billion. I'd think Dell would be bigger, although their $68 billion per year may include store sales now that they have boxed computers sold at other retailers. CDW is also bigger.
You forgot the most important spec. The drive height can't be more than 9.5 mm. There are a few oversized drives that are thicker and won't slide into a MacBook.
Best Buy (if you're in the US) has a 200 GB Hitachi Travelstar 7K200 kit complete with USB enclosure for $159.99. It comes in a full retail package, while most of the drives at Newegg come as bare drives in an antistatic bag. I actually paid more just for my drive from Newegg earlier this year, although the price has gone down.
http://www.bestbuy.com/site/olspage.jsp?skuId=8682222&type=product&id=1197679249 375

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