Converting ASCII characters to integer values

I'm trying to convert characters to ints in order to see if they are within the ASCII encoding set. Having trouble finding a method to do this.

This is simple in java you can just cast a char to an
int.
For example, a method to print the ascii value of a
char:
public void printAscii(char c) {
int asciiValue = (int) c;
System.out.println(asciiValue);
}Actually a cast is not necessary as a char is automatically cast to an int by Java. -
int asciiValue = c; is fine and works correctly.
Also, as DrClap said - and less than 127.

Similar Messages

How can I convert ASCII characters to ISO8859?

Hi All,
I have written a little application that renames a TV episode by scraping a TV listing site for the episode name. It is written in SWT and works great apart from on small problem. When getting the html back from the site, it sometimes contains special ASCII characters that are not in the ISO8859 (Windows filesystem) character set.
For example, this is the line that I have to parse:
<td style='padding-left: 6px;' class='b2'><a href='/Prison_Break/episodes/569183/03x01'>Orientaci��n</a></td>When viewing it in a browser, it is:
<td style="padding-left: 6px;" class="b2"><a href="/Prison_Break/episodes/569183/03x01">Orientaci�n</a></td>Notice that the o in the title has an accent on it. While researching this problem I stumbled across 'HTML Entities to ISO 8859-1 Converter' at http://www.inweb.de/chetan/English/Resources/Java/HTML%202%20ISO.html. This open source project takes in an html entity like & and returns '&'.
So that is not quite what I want, as my BufferedReader is converting the html entity into the ASCII representation already. I need a way of detecting a non ISO8859 character within an ASCII string, and hopefully replacing its natural 'equivalent' (would be o in this case).
Does anyone know how I could do it without having to check for every special char and replacing (not really an option unless someone has done it before!!)
If not that then, perhaps another way to attack the problem?
Any help greatly appreciated ;)
Dave

Hi,
NZ_Dave wrote:
For example, this is the line that I have to parse:
<td style='padding-left: 6px;' class='b2'><a href='/Prison_Break/episodes/569183/03x01'>Orientaci��n</a></td>
This is coded in UTF-8. If you convert the bytes to a String using the UTF-8 encoding, then you will have the correct characters "Orientaci�n" in the string.
Check your parser where it converts the bytes (coming from e.g. an InputStream) to characters. Use UTF-8 as the charset when doing that conversion.

How to convert ASCII to an integer number??

Here I am trying to send the number 1000000 from microcontroller through UART and I am recieving the ASCII in labview. But i would like to get exact 1000000 in labview too. So i am trying to convert ASCII to integer but i am unable to do that.
Solved!
Go to Solution.

danil33 wrote:
Hello mallik,
Please don't feel bad.Smercurio and all other experts are trying to make us to do things by our own.THis will make us experts in labview.Thats why he told you to go through the tutorials.I have heard such type of advice(sometimes they scold us) so many times.Still Iam hearingIt is our fault that we won't go through the tutorials properly.Don't get annoyed.
Besides, the question is quite unclear formulated and makes me almost assume, that the OP hasn't even bothered to look for a solution himself. Since the OP receives a string it would be logical to look in the String palette for some function to do what he wants. And inside that palette there is magically a String/Number Conversion palette, which sounds almost like it could contain at least one function that could do the right thing. (In fact it contains 3 that could work, but I'm sure the OP can find the most logical one for his number easlily).
Rolf Kalbermatter
CIT Engineering Netherlands
a division of Test & Measurement Solutions

How to query for extended ASCII characters in column value

Hi All
Sorry if this has been answered before. I tried searching but none of them seems to work for me.
I am trying to search for inverted ? in my column.
I am using the following query
select *
from table_name
where regexp_like (description , '¿' )

Did you try:
like '%¿%'
create table table_name (description varchar2(100))
insert into table_name values ('jh¿¿gagd')
insert into table_name values ('jhga345gd')
insert into table_name values ('j1231232hgagd¿')
select *
from table_name
where regexp_like (description , '¿' )
DESCRIPTION
jh¿¿gagd
j1231232hgagd¿
select * from table_name
where description like '%¿%'
DESCRIPTION
jh¿¿gagd
j1231232hgagd¿Edited by: user130038 on Sep 8, 2011 12:29 PM

Converting a hexadecimal string to ASCII-characters.

I have long hexadecimal strings that I wish to convert to their corresponding ascii-characters. I know there are a series of functions for doing things like this - hex to number, number to string etc.
At the moment, however, I am stuck at entering the hexadecimal string. I connect it to "hexadecimal string to number". What I get out is the decimal value of the two last digits of the hexadecimal number. No other wires are connected to the function. This means data is lost. How do I get around this? Is this particular function at all suitable for what I am trying to do?

Hi Tzench,
"hexadecimal string" isn't very accurate and conversion questions have been discussed many times before...
See example on conversion of two different "hexadecimal" strings. There are other conversion methods, but those are most easiest to understand
Message Edited by GerdW on 12-08-2008 11:27 AM
Best regards,
GerdW
CLAD, using 2009SP1 + LV2011SP1 + LV2014SP1 on WinXP+Win7+cRIO
Kudos are welcome
Attachments:
HexString_LV71.vi ‏35 KB

Problem convertting certain extended ascii characters

I'm having problems with the extended ascii characters in the range 128-159. I'm working with SQL server environment using java. I originally had problems with characters in the range 128-159 when I did a 'select char_col from my_table' I always get junk when I try to retreive it from the ResultSet using the code 'String str = rs.getString(1)'. For example char_col would have the ascii character (in hex) '0x83' but when I retrieved it from the database, my str equaled '0x192'. I'm aware there is a gap in the range 128-159 in ISO-8859-1 charset. I've tracked the problem to be a charset issue converting the extended ascii characters in ISO-8859-1 into java's unicode charset.
I looked on the forum and it said to try to specify the charset when I retreived it from the resultset so I did 'String str = new String(rs.getBytes(), "ISO-8859-1")' and it was able to read the characters 128-159 correctly except for five characters (129, 141, 143, 144, 157). These characters always returned the character 63 or 0x3f. Does anyone who what's happening here? How come these characters didn't work? Is there a workaround this? I need to use only use java and its default charsets and I don't want to switch to the windows Cp1252 charset cuz I'm using the java code in a unix environment as well.
thanks.
-B

Normally your JDBC driver should understand the charset used in the database, and it should use that charset to produce a correct value for the result of getString(). However it does sometimes happen that the database is created by programs in some other language that ignore the database's charset and do their own encoding, bypassing the database's facilities. It is often difficult to deal with that problem, because the custodians of those other programs don't have a problem, everything is consistent for them, and they will not allow you to "repair" the database.
I don't mean to say that really is your problem, it is a possibility though. You are using an SQL Server JDBC driver, aren't you? Does its connection URL allow you to specify the charset? If so, try specifying that SQL-Latin1 thing and see if it works.

How to convert signed ascii hex to float value

Hi,
I have a requirement to convert IEEE ascii hex to float value.
Following code is working for +ve float value but it didn't work for -ve.
public static float hexToFloat(String str){
          float floatVal= 0.0f;
          int decimalValue =Integer.parseInt(str,16);
          floatVal=Float.intBitsToFloat(decimalValue );
          return floatVal;
for example "BE4CE1E6" should return -0.20 . (i verified in http://babbage.cs.qc.edu/IEEE-754/32bit.html )
For the above string I am getting number format exception.
pls help me.

The problem is the parseInt method. It can only process numbers up to 2147483647 or 7FFFFFFF. Because that method expects a signed number.
The solution is to use Long.parseLong() instead.
public static float hexToFloat(String str){
float floatVal= 0.0f;
int decimalValue =(int)Long.parseLong(str,16);
floatVal=Float.intBitsToFloat(decimalValue );
return floatVal;
}

Error on select when using value converted from varchar to integer (with isnumeric in where)

Hi,
Why is it, that when I convert a varchar into integer and filter it to numeric only that I get the Error 'Conversion failed when converting the nvarchar value '...' to data type int.'
Here is a short SQL witch shows the Error:
create table tTest(ID int, sText nvarchar(15))
insert into tTest
select 1, null
insert into tTest
select 2, 'q'
go
select distinct ID, sText, convert(int,sText) AS ID2 from tTest where isnumeric(sText) = 1
go
SELECT DISTINCT TOP 100 PERCENT
ID
FROM
(select distinct ID, sText, cast(sText as int) AS ID2 from tTest where isnumeric(sText) = 1) v1
WHERE
id2 = 1
go
drop table tTest
As a workaround I replaced the case with 'cast(case when isnumeric(sText) = 1 then sText else null end as int)', but this rater unexpected.
It works fine in a short query, but if I create a view with the SQL from V1 then the error is unexpected, since I only know that if I view the source of the view

>'cast(case when isnumeric(sText) = 1 then sText else null
ISNUMERIC is not 100% accurate.
BOL: "ISNUMERIC returns 1 for some characters that are not numbers, such as plus (+), minus (-), and valid currency symbols such as the dollar sign ($). For a complete list of currency symbols, see money and smallmoney (Transact-SQL)."
LINK: http://technet.microsoft.com/en-us/library/ms186272.aspx
ISNUMERIC examples:
http://sqlusa.com/bestpractices/isnumeric/
Kalman Toth Database & OLAP Architect
Free T-SQL Scripts
New Book / Kindle: Exam 70-461 Bootcamp: Querying Microsoft SQL Server 2012

Convert to ASCII characters

We are extracting information, such as article descriptions to send to some legacy systems. These systems can only accept ASCII characters (space, A-Z, 0-9, a-z, and the standard characters on the US keyboard). These are decimal values 32 through 126 or hex values 20 through 7E.
SAP apparently allows entries of decimal values 127 and greater (such as ½).
We need to either remove or convert such characters to spaces.
Is there a function to do this? Or some simple command?
Thanks in advance for your help.

Thank you both for your suggestions but I couldn't get any of these functions to do what I want.
We have a description for an article that includes "Size 7 ½". The ½ symbol causes a problem with interfaces to some of our legacy systems.
I know I can replace the ½ symbol with a space, but eventually some user will use yet another symbol (such as ¼) and I don't want to try to create a replace for each of these symbols.
I would like to investigate the decimal or hex equivilent of each character and replace those out of range.
Is there any function that would allow this?
Thanks,

How to convert ascii value into character and vice versa

Hello the java world people,
I want to convert each characters from my array into their corespondent ascii value and vice versa, how can I do that ?

The term "ASCII" is often used very loosely.
Java char values are UNICODE and the ASCII codes are indentical to UNICODE characters in the range 0 .. 127. UNICODE values 128 and above don't have coresponding ASCII values, though 128-255 corespond to ISO-8859-1 which is one of the encodings often called "extended ASCII".
As shown above you can covert between chars and coresponding int value simply with a cast, but you should be aware that the more exotic characters will not give you sensible values.

Convert smart quotes and other high ascii characters to HTML

I'd like to set up Dreamweaver CS4 Mac to automatically convert smart quotes and other high ASCII characters (m-dashes, accent marks, etc.) pasted from MS Word into HTML code. Dreamweaver 8 used to do this by default, but I can't find a way to set up a similar auto-conversion in CS 4. Is this possible? If not, it really should be a preference option. I code a lot of HTML emails and it is very time consuming to convert every curly quote and dash.
Thanks,
Robert
Digital Arts

I too am having a related problem with Dreamweaver CS5 (running under Windows XP), having just upgraded from CS4 (which works fine for me) this week.
In my case, I like to convert to typographic quotes etc. in my text editor, where I can use macros I've written to speed the conversion process. So my preferred method is to key in typographic letters & symbols by hand (using ALT + ASCII key codes typed in on the numeric keypad) in my text editor, and then I copy and paste my *plain* ASCII text (no formatting other than line feeds & carriage returns) into DW's DESIGN view. DW displays my high-ASCII characters just fine in DESIGN view, and writes the proper HTML code for the character into the source code (which is where I mostly work in DW).
I've been doing it this way for years (first with GoLive, and then with DW CS4) and never encountered any problems until this week, when I upgraded to DW CS5.
But the problem I'm having may be somewhat different than what others have complained of here.
In my case, some high-ASCII (above 128) characters convert to HTML just fine, while others do not.
E.g., en and em dashes in my cut-and-paste text show as such in DESIGN mode, and the right entries
    –
    —
turn up in the source code. Same is true for the ampersand
    &
and the copyright symbol
    ©
and for such foreign letters as the e with acute accent (ALT+0233)
    é
What does NOT display or code correctly are the typographic quotes. E.g., when I paste in (or special paste; it doesn't seem to make any difference which I use for this) text with typographic double quotes (ALT+0147 for open quote mark and ALT+0148 for close quote mark), which should appear in source code as
    “[...]”
DW strips out the ASCII encoding, displaying the inch marks in DESIGN mode, and putting this
    "[...]"
in my source code.
The typographic apostrophe (ALT+0146) is treated differently still. The text I copy & paste into DW should appear as
    [...]’[...]
in the source code, but instead I get the foot mark (both in DESIGN and CODE views):
I've tried adjusting the various DW settings for "encoding"
    MODIFY > PAGE PROPERTIES > TITLE/ENCODING > Encoding:
and for fonts
    EDIT > PREFERENCES > FONTS
but switching from "Unicode (UTF-8)" to "Western European" hasn't solved the problem (probably because in my case many of the higher ASCII characters convert just fine). So I don't think it's the encoding scheme I use that's the problem.
Whatever the problem is, it's caused me enough headaches and time lost troubleshooting that I'm planning to revert to CS4 as soon as I post this.
Deborah

Non ASCII characters are converted to '?' or ASCII characters

Non ASCII symbols like æ ø in the xml file have been converted to ? or other ascii characters.
What could be the reason behind this.

Mayil wrote:
This file we are loading through the Flex application in the front end.
Through java class file we are making changes to this city.xml file and adding and deleting this information in the city.xml.
Now suddenly, i dont know what happen.. 'ø' in the city name has replaced with the '?'
If we try to chaange this to 'ø' also, it again changes to '?'.
I dont know how to rectify this error.I would suggest you start by finding out when it happens. Does it happen as soon as you change the XML through this mysterious "java class file"? Or does it happen when Flex reads it? And is the underlying file actually changing, or are you just seeing those question marks after Flex handles the file?
In short a much better problem description is necessary.

Convert an integer value that was created with the Excel DATEVALUE formula to a valid date?

Hello everyone,
How can I convert an integer value that was created with the Excel DATEVALUE formula to a valid date in SSIS?
Is this even possible?
For example:
=DATEVALUE("8/22/2008") will format the cell to display 39682.
Reading the column as a string to get the int value (39682) - how can I turn this into a valid date using SSIS and then importing the real date to sql server?
Thank you!

You can use Script component for this and convert your integer values to Date. An example here is following:
CultureInfo provider = CultureInfo.InvariantCulture;
string dateString = "08082010";
string format = "MMddyyyy";
DateTime result = DateTime.ParseExact(dateString, format, provider);
Source: http://stackoverflow.com/questions/2441405/converting-8-digit-number-to-datetime-type
Vikash Kumar Singh || www.singhvikash.in

Replacing non-ASCII characters with HTML charcter references

Hi All,
In Oracle 10g or greater is there a built-in function that will convert a string with non-ASCII characters like this
a b č 뮼
into an ASCII string with HTML character references like this?
a b & # x 0 1 0 D ; & # x B B B C ;
(note I had to include spaces between each character in the sample code for message to prevent the forum software from converting my text)
I tried using
utl_i18n.escape_reference( val, 'us7ascii' )
but for some reason it returns
a b c & # x B B B C ;
Note how it converted the Western European character "č" to its unaccented counterpart "c", not "& # x 0 1 0 D ;" (is this a bug?).
I also tried a custom solution using regexp_replace and asciistr (which I can't include here because the forum software chokes on it) but it only returns the correct result for values <=4000 characters long. Unfortunately asciistr doesn't appear to accept CLOB values larger than 4000 characters. It returns an error message like
(ORA-22835: Buffer too small for CLOB to CHAR or BLOB to RAW conversion (actual: 30251, maximum: 4000) ).
I'm looking for a solution that works on CLOB data of any size.
Thanks in advance for any insight you can provide.
Joe Fuda

So with that (UTF8) in mind, let's take another look.....
As shown below, I used a AL32UTF8 database.
Note: I did not use a unicode capable tool for querying. So I set console mode code page to 1250 just to have č displayed properly (instead of posing as an è).
Also, as a result of using windows-1250 for client character set, in the val column and in the second select's ncr column (iso8859-1), è (00e8) has been replaced with e through character set conversion going from server back to client.
Running the same code on a database with a db character set such as we8mswin1252, that doesn't define the č (latin small c with caron) character, would yield results with a c in the ncr column.
C:\>chcp 1250
Aktuell teckentabell: 1250
C:\>set nls_lang=.ee8mswin1250
C:\>sqlplus test/test
SQL*Plus: Release 11.1.0.6.0 - Production on Fri May 23 21:25:29 2008
Copyright (c) 1982, 2007, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.1.0.6.0 - Production
With the OLAP option
SQL> select * from nls_database_parameters where parameter like '%CHARACTERSET';
PARAMETER              VALUE
NLS_CHARACTERSET       AL32UTF8
NLS_NCHAR_CHARACTERSET AL16UTF16
SQL> select unistr('\010d \00e8') val, utl_i18n.escape_reference(unistr('\010d \00e8'),'us7ascii') NCR from dual;
VAL NCR
č e c e
SQL> select unistr('\010d \00e8') val, utl_i18n.escape_reference(unistr('\010d \00e8'),'we8iso8859p1') NCR from dual;
VAL NCR
č e &# x10d; e     <- "è"
SQL> select unistr('\010d \00e8') val, utl_i18n.escape_reference(unistr('\010d \00e8'),'ee8iso8859p2') NCR from dual;
VAL NCR
č e č &# xe8;
SQL> select unistr('\010d \00e8') val, utl_i18n.escape_reference(unistr('\010d \00e8'),'cl8iso8859p5') NCR from dual;
VAL NCR
č e &# x10d; &# xe8;In the US7ASCII case, where it should be possible for all non-ascii characters to be escaped, it seems as if the actual escape step is skipped over.
Hope this helps to understand whether utl_i8n is usable or not in your case.
Message was edited by:
orafad
Fixed replaced character references :)

Passing multiple integer values as parameter in SSRS

Hello,
I am trying to pass a comma separated multiple integer value parameter in SSRS report and it errors out complaining that it is not able to convert the nvarchar value to datatype int. But it works fine when I pass a single value. Here is the code I am using
for the report and I am stuck at passing multiple values.
SELECT
id,count(*) as cnt
from table
and ID in (@id) group by id
eg: if I pass 10,20,30 then I would get error however if I pass 10 then it works fine
Is there a different method to pass multiple integer values?
Thanks for your help.

A comma is, of course, a textual character and not an integer, thus the error you are getting. Multi-value parameters can be used for this.
Select "Allow multiple values"and set data type to Integer. Multi-value parameters deliver the values as an array. The query interface is smart enough to convert them to the proper syntax (comma-delimited) automatically so a statement like:
WHERE Field IN (@id)
where the parameter has an array of values {1, 2, and 3} is interpreted as:
WHERE Field IN (1,2,3)
You do not need to manually convert it in a transact SQL query. That is not the case for displaying the value array in your report. If you wish to display the array (described above) in your report as "1, 2, 3", you will need to use a join expression:
=Join(@id, ", ")
As DJ described, the other part to a multivalue parameter is the Available values. These can be set explicitly but given your example, I think it would be best to create a new dataset that retrieves a distinct list of the IDs that can be retrieved, perhaps
something like:
SELECT DISTINCT GroupName, GroupID
FROM table
WHERE [criteria]
Set the available values to use this query with GroupName (or whatever user-friendly field you choose for your dataset) as the label and the id as the value. The label field should be something the the target report user can easily identify the correct group
using.
If you don't want to or can't use a multivalue parameter for some reason then you will need to manipulate your parameter value prior to consuming it in your query. When you add the parameter to the TSql query and save the dataset, SSRS adds it to the Parameters
property of the dataset. Open the dataset properties and select the parameters tab. You should see your parameter in the list. click the expression builder (fx) button next to the value and enter this expression:
=Split(@id,",")
Note that the second element of the expression is the delimiter. If your text input has comma-space as a delimiter (1, 2, 3 vs 1,2,3) then that element must include ", ". My example just has comma so if you use that with a string "1, 2, 3"then
the resulting array will still have 3 elements but the 2nd and 3rd elements of the array will have a preceding space which will cause your dataset to error with the same error. As long as there are no non-numeric characters in any of the elements, the split6
will create the text array, SSRS will dynamically generate the correct "IN"syntax (comma separated) and SQL will convert the elements from VARCHAR to INT on the fly.
"You will find a fortune, though it will not be the one you seek." -
Blind Seer, O Brother Where Art Thou
Please Mark posts as answers or helpful so that others may find the fortune they seek.

Converting ASCII characters to integer values

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