I would like to trim all special characters from a string in SQL. I've seen a bunch of people who use substring methods to remove a certain amount of characters, but in this case the length on each side of the string is unknown.
Anyone know how to do this?
Thanks,
Matt
In my last question i asked how to best send a string from one view controller to another, both which were on a navigation stack:
http://stackoverflow.com/questions/2898860/pass-string-from-tableviewcontroller-to-viewcontroller-in-navigation-stack
However I just realised I can either pass the path to the file in the app's document's folder as the first (the table view) has already accessed the data in the file should I pass viewcontroller the data to the pushed VC?
What am I doing wrong/what can I do?
import sys
import string
def remove(file):
punctuation = string.punctuation
for ch in file:
if len(ch) > 1:
print('error - ch is larger than 1 --| {0} |--'.format(ch))
if ch in punctuation:
ch = ' '
return ch
else:
return ch
ref = (open("ref.txt","r"))
test_file = (open("test.txt", "r"))
dictionary = ref.read().split()
file = test_file.read().lower()
file = remove(file)
print(file)
This is in Python 3.1.2
I wrote a blog post a while ago detailing how the availability of both primitive and object-wrapped value types in JavaScript (for things such as Number, String and Boolean) causes trouble, including but not limited to type-casting to a boolean (e.g. object-wrapped NaN, "" and false actually type-cast to true).
My question is, with all this confusion and problems, is there any benefit to JavaScript having both types of values for the built-in classes?
Hello. How can I remove the first number in a string? Say if I had these 48 numbers seperated with a ',' (comma):
8,5,8,10,15,20,27,25,60,31,25,39,25,31,26,28,80,28,27,31,27,29,26,35,8,5,8,10,15,20,27,25,60,31,25,39,25,31,26,28,80,28,27,31,27,29,26,35
How would I remove the "8," from the string? Thanks.
class CreateScrapes < ActiveRecord::Migration
def self.up
create_table :scrapes do |t|
t.text :saved_characters
t.text :sanitized_characters
t.string :href
t.timestamps
end
end
def self.down
drop_table :scrapes
end
end
I'm about to rake db:migrate and I'm think about the attribute type if I should be using text or string. Since saved_characters and sanitized_characters will be arrays with thousands of unicode values, its basically comma delimited data, I'm not sure if `:text' is really the right way to go here. What would you do?
This is probably a really stupid question...but how can I remove parts of a string up to a certain character?
Ex.) If I have the string testFile.txt.1 and testFile.txt.12345 how can I remove the 1 and 12345?
Thanks a lot for the help
How do I check if a String contains only letters in java? I want to write an if statement that will return false if there is a white space, a number, a symbol or anything else other than a-z A-Z. My string must contain ONLY letters.
I thought I could do it this way, but I'm doing it wrong:
if( ereg("[a-zA-Z]+", $myString))
return true;
else
return false;
what am i doing wrong/what can i do??
import sys
import string
def remove(file):
punctuation = string.punctuation
for ch in file:
if len(ch) > 1:
print('error - ch is larger than 1 --| {0} |--'.format(ch))
if ch in punctuation:
ch = ' '
return ch
else:
return ch
ref = (open("ref.txt","r"))
test_file = (open("test.txt", "r"))
dictionary = ref.read().split()
file = test_file.read().lower()
file = remove(file)
print(file)
p.s, this is in Python 3.1.2
In java what is the diference between an object and a class? The book i'm working from made it seem as though once a class is created it also exists as an object.
In java what is the difference between an object and a class? The book I'm working from made it seem as though once a class is created it also exists as an object.
I want to know if my connection string is encrypted or not. I don't want to encrypt it again and again. This is only an issue in development stage. Any way to check the status of the connection string in App.config?
How can I replace a string with another string, within a given text file. Do I just loop through readline() and run the replacement while saving out to a new file? Or is there a better way?
I'm thinking that I could read the whole thing into memory, but I'm looking for a more elegant solution...
Thanks in advance
What would be the best way (ideally, simplest) to convert an int to a binary string representation in Java?
For example, say the int is 156. The binary string representation of this would be "10011100".
For the API (Android SDK API version 8) functions whose definitions list character sequence parameters, I can feed the function String instead. Best part is that they work the same way, no hassle, no warnings.
Is there a difference between the two types? And more importantly, is there an inherent danger if I send the function a String instead of a character sequence???
Thanks for any clarifications!!! :D
Hi ,
I have a string val = "14 22 33 48";
int matrix[5];
I need to insert each of the values in the string into the respective location in the array
Eg: matrix[0] = 14;
matrix[1] = 22;
matrix[2] = 33;
matrix[3] = 48;
How do I do this ?
I'm looking for a function to convert a stringto the xml string with xml entities where needed. Something like htmlentities in PHP but for XML and in Javascript.
Thank you for any help!
I'd like to be able to create an object that is created like a Stringobject, and when created verifies that the String value is an appropriate option.
I.E. SpecificString can be "Bob" or "Jim".
SpecificString BadName = "Sam" //Throws exception
SpecificString GoodName = "Bob" //Does not throw exception.
Is this possible?
If a string in Perl 5 passes looks_like_number, it might as well be a number. For instance,
my $s = "10" + 5;
results in $s being assigned 15.
Are there any cases where a string does not behave like it's numeric equivalent would have?
I want to sort one column fetched from mysql DB, and stored in an array. After fetching I am doing below steps.
1- DB Fetching fields array in row format.
->Field1, Field2, Field3, Field4, Field5
2- From that fields array One columns data [Field3], swapping string keywords.
eg. AB013, DB131, RS001
to->013AB, 131DB, 001RS
Now I want to sort above value in new string format
like-> 001RS, 013AB, 131DB
I have a string "14 22 33 48". I need to insert each of the values in the string into the respective location in the array:
int matrix[5];
so that
matrix[0] = 14;
matrix[1] = 22;
matrix[2] = 33;
matrix[3] = 48;
How do I do this?
A simple example using a built-in javascript object:
navigator.my_new_property = "some value"; //can we detect that this new property was added?
I don't want to constantly poll the objectto check for new properties.
Is there some type of higher level setter for objects instead of explicitly stating the property to monitor?
Again, I don't want to detect if the property value changed, but rather when a new property is added.
Ideas?
thanks