Search Results

Search found 3639 results on 146 pages for 'dom manipulation'.

Page 56/146 | < Previous Page | 52 53 54 55 56 57 58 59 60 61 62 63  | Next Page >

• Searching through Collections in Java

  - by Click Upvote

  I have a java properties file containing a key/value pair of country names and codes. I will load the contents of this file into a Collection like List or HashMap. Then, I want users to be able to search for a country, e.g if they type 'Aus' in a textbox and click submit, then I want to search through the collection I have, containing a key/value pair of country codes/names (e.g AUS=Australia), and return those countries which are found matching. Is there any more efficient way of doing this, other than looping through the elements of the collection and using charAt()?

  Read the article

• Coldfusion: insert new line into string

  - by dmr

  I would like to insert a line break into the first space between words in a string variable. Here is my code so far: <cfset myPosition = find(" ", #myVar#)> <cfset lineBreak = Chr(13)&Chr(10)> <cfset myVar = insert(#lineBreak#, #myVar#, #myPosition#)> What am I doing wrong?

  Read the article

• How do I count the number of occurrences of a char in a String?

  - by Bart

  I have the string a.b.c.d I want to count the occurrences of '.' in an idiomatic way, preferably a one-liner. (Previously I had expressed this constraint as "without a loop", in case you're wondering why everyone's trying to answer without using a loop).

  Read the article

• C++ Check Substring of a String

  - by user69514

  I'm trying to check whether or not the second argument in my program is a substring of the first argument. The problem is that it only work if the substring starts with the same letter of the string. .i.e Michigan - Mich (this works) Michigan - Mi (this works) Michigan - igan (this doesn't work) #include <stdio.h> #include <string.h> #include <string> using namespace std; bool my_strstr( string str, string sub ) { bool flag = true; int startPosition = -1; char subStart = str.at(0); char strStart; //find starting position for(int i=0; i<str.length(); i++){ if(str.at(i) == subStart){ startPosition = i; break; } } for(int i=0; i<sub.size(); i++){ if(sub.at(i) != str.at(startPosition)){ flag = false; break; } startPosition++; } return flag; } int main(int argc, char **argv){ if (argc != 3) { printf ("Usage: check <string one> <string two>\n"); } string str1 = argv[1]; string str2 = argv[2]; bool result = my_strstr(str1, str2); if(result == 1){ printf("%s is a substring of %s\n", argv[2], argv[1]); } else{ printf("%s is not a substring of %s\n", argv[2], argv[1]); } return 0; }

  Read the article

• Remove first and last characters from a string in Lisp

  - by powerj1984

  I am passing in command line arguments to my Lisp program and they are formatted like this when they hit my main function: ("1 1 1" "dot" "2 2 2") I have a dot function and would like to call it directly from the argument, but first I must strip the " characters. I tried variations of this function: (defun remove-quotes (s) (setf (aref s 0) '"")) to no avail, Lisp complains that "" is not a member of base-char. Thanks!

  Read the article

• How to find about structure of bitmap and JPEG files?

  - by Sorush Rabiee

  I'm trying to write a very simple image processing program for fun and practice. I was using System.Drawing. ... .Bitmap class to handle images and edit their data. but now I want to write my own class of Bitmap object implementation and want to know how bmp files (and other common bitmap formats) and their meta-data (indexing, color system & etc) are stored in files, and how to read and write them directly?

  Read the article

• Android: grab a piece of an ImageView

  - by komidore64

  I have an ImageView from which I want to copy a piece of it in the shape of a circle that I can then re-display to the user at a larger than original size to simulate a zoom effect. Would I use bitmaps for that? Thanks.

  Read the article

• I'm writing a spellchecking program, how do I replace ch in a string?

  - by Ajay Hopkins

  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

  Read the article

• Scaling larger Image problem.

  - by krishna

  Hi, I m developing flex application, in which I want to Draw Image from User local hard-drive to the canvas of size 640x360. User can choose Image of bigger resolution & is scaled to Canvas size. But if user selected images of larger resolution like 3000x2000, the scaling take lot time & freezes the application until scale done. Is there any method to scale image faster or kind of threading can be done? I am using matrix to scale Image as below: var mat:Matrix = new Matrix(); var scalex:Number = canvasScreen.width/content.width; var scaley:Number = canvasScreen.height/content.height; mat.scale(scalex,scaley); canvasScreen.graphics.clear(); canvasScreen.graphics.beginBitmapFill(content.bitmapData,mat);

  Read the article

• Faster way to split a string and count characters using R?

  - by chrisamiller

  I'm looking for a faster way to calculate GC content for DNA strings read in from a FASTA file. This boils down to taking a string and counting the number of times that the letter 'G' or 'C' appears. I also want to specify the range of characters to consider. I have a working function that is fairly slow, and it's causing a bottleneck in my code. It looks like this: ## ## count the number of GCs in the characters between start and stop ## gcCount <- function(line, st, sp){ chars = strsplit(as.character(line),"")[[1]] numGC = 0 for(j in st:sp){ ##nested ifs faster than an OR (|) construction if(chars[[j]] == "g"){ numGC <- numGC + 1 }else if(chars[[j]] == "G"){ numGC <- numGC + 1 }else if(chars[[j]] == "c"){ numGC <- numGC + 1 }else if(chars[[j]] == "C"){ numGC <- numGC + 1 } } return(numGC) } Running Rprof gives me the following output: > a = "GCCCAAAATTTTCCGGatttaagcagacataaattcgagg" > Rprof(filename="Rprof.out") > for(i in 1:500000){gcCount(a,1,40)}; > Rprof(NULL) > summaryRprof(filename="Rprof.out") self.time self.pct total.time total.pct "gcCount" 77.36 76.8 100.74 100.0 "==" 18.30 18.2 18.30 18.2 "strsplit" 3.58 3.6 3.64 3.6 "+" 1.14 1.1 1.14 1.1 ":" 0.30 0.3 0.30 0.3 "as.logical" 0.04 0.0 0.04 0.0 "as.character" 0.02 0.0 0.02 0.0 $by.total total.time total.pct self.time self.pct "gcCount" 100.74 100.0 77.36 76.8 "==" 18.30 18.2 18.30 18.2 "strsplit" 3.64 3.6 3.58 3.6 "+" 1.14 1.1 1.14 1.1 ":" 0.30 0.3 0.30 0.3 "as.logical" 0.04 0.0 0.04 0.0 "as.character" 0.02 0.0 0.02 0.0 $sampling.time [1] 100.74 Any advice for making this code faster?

  Read the article

• A string tokenizer in C++ that allows multiple separators

  - by Hao Wooi Lim

  Is there a way to tokenize a string in C++ with multiple separators? In C# I would have done: string[] tokens = "adsl, dkks; dk".Split(new [] { ",", " ", ";" }, StringSplitOptions.RemoveEmpty);

  Read the article

• String concatenation in C

  - by Mechko

  if I want to construct a const char * out of several primitive type arguments, is there a way to build the string using a similar to the printf?

  Read the article

• Python, add trailing slash to directory string, os independently

  - by Horace Ho

  How can I add a trailing slash (/ for *nix, \ for win32) to a directory string, if the tailing slash is not already there? Thanks!

  Read the article

• How to cut a string variable into more?

  - by DanSogaard

  So I've a string: string x = "DR\nDC\nDD"; I want to get each line in a separated variable like this: string y1 = "DR"; String y2 = "DC"; String y3 = "DD"; How can I do that?.

  Read the article

• Regex: Strip non alpha numeric or punctuation.

  - by Tedd

  How can I use PHP to strip out all characters that are NOT alpha, numeric, space, or puncutation? I've tried the following, but it strip punctuation. preg_replace("/[^a-zA-Z0-9\s]/", "", $str);

  Read the article

• How can I write a regular expression that will not match if a string contains a particular substring

  - by Iain Fraser

  Example: Suppose in the following example I want to match strings that do not contain the word "NOOOT". Example A: This shirt is NOOOT black. Example B: This shirt is black. I want something a little bit like the like the non-matching character class (e.g. [^abc]), but for whole strings: .*?(^NOOOT).*? Does such a creature exist?

  Read the article

• Repeated regular expression

  - by javaguy

  How can I parse a strings like : name1="val1" name2="val2" name3="val3" I cannot use split(\s+) as it can be name = "val 1". I am doing java but any laguage is okay.

  Read the article

• How to remove the file extension in a zsh completion?

  - by meeselet

  I want to adjust zsh so that I can tab complete: myprog <tab> using all *.foo files in ~/somedir, but have it so that it displays them without the .foo extension. Is there any way to do this? This is what I have so far: #compdef myprog typeset -A opt_args local context state line local -a mydirs mydirs="(. ~/somedir)" _arguments -s -S \ "*:name:->foos" \ && return 0 case $state in (foos) _files -W ${mydirs} -g '*.foo(:r)' && return 0 ;; esac return 1 However, this displays double the output for every file (that is, each .foo file is listed with and without its extension). Is there any way around this?

  Read the article

• Delete all characters in a multline string upto a given pattern

  - by biffabacon

  Using Python I need to delete all charaters in a multiline string up to the first occurrence of a given pattern. In Perl this can be done using regular expressions with something like: #remove all chars up to first occurrence of cat or dog or rat $pattern = 'cat|dog|rat' $pagetext =~ s/(.*)($pattern)/$2/xms; What's the best way to do it in Python?

  Read the article

• How to convert Java Image into JPEG array of bytes?

  - by unknownthreat

  Is there a way to convert a Java Image, encode it into JPEG (but not saving it to a file), and store it as an array of bytes? (byte[]) I need the JPEG-encoded image as an array of bytes.

  Read the article

• Efficient way in Python to add an element to a comma-separated string

  - by ensnare

  I'm looking for the most efficient way to add an element to a comma-separated string while maintaining alphabetical order for the words: For example: string = 'Apples, Bananas, Grapes, Oranges' addition = 'Cherries' result = 'Apples, Bananas, Cherries, Grapes, Oranges' Also, a way to do this but while maintaining IDs: string = '1:Apples, 4:Bananas, 6:Grapes, 23:Oranges' addition = '62:Cherries' result = '1:Apples, 4:Bananas, 62:Cherries, 6:Grapes, 23:Oranges' Sample code is greatly appreciated. Thank you so much.

  Read the article

• PHP image resize using nearest-neighbor interpolation?

  - by shipshape

  I have a 16x16 sprite in PNG or GIF image format, and would like to display it on a website at 64 x 64 in all its pixelated glory. In Firefox 3.6+ and IE I can do this easily with CSS using image-rendering and -ms-interpolation-mode, but as this doesn't work in all browsers I'd like to resize the image on the fly using PHP instead. What's the best way to resize images using nearest-neighbor interpolation in PHP?

  Read the article

• Python proper use of __str__ and __repr__

  - by Peter

  Hey, My current project requires extensive use of bit fields. I found a simple, functional recipe for bit a field class but it was lacking a few features I needed, so I decided to extend it. I've just got to implementing __str__ and __repr__ and I want to make sure I'm following convention. __str__ is supposed to be informal and concice, so I've made it return the bit field's decimal value (i.e. str(bit field 11) would be "3". __repr__ is supposed to be a official representation of the object, so I've made it return the actual bit string (i.e. repr(bit field 11) would be "11"). In your opinion would this implementation meet the conventions for str and repr? Additionally, I have used the bin() function to get the bit string of the value stored in the class. This isn't compatible with Python < 2.6, is there an alternative method? Cheers, Pete

  Read the article

• In Javascript is there a function that returns the number of times that a given string occurs?

  - by William Calleja

  In Javascript is there a function that returns the number of times that a given string occurs? I need to return a numeric value that is equal to the number of times that a given string occurs within a particular string for instance: var myString = "This is a test text" If I had to search for 'te' in the above string it would return 2.

  Read the article

• jQuery + Validation plugin: add/remove class to/from element's parent

  - by FreekOne

  Hi guys, I'm working with the jQuery Validation plugin and I wrote the following code which adds a class to the element's parent if not valid (as well as inserting the actual error message at a particular location within the parent): errorPlacement: function(error, element) { element.parent().addClass('error'); error.insertBefore(element.parent().children("br")); } This works, however, if a field's content is corrected and becomes valid, the class obviously doesn't get removed from its parent (actually, neither does the error element, instead it just gets a display: none; CSS property). How can I check if an element becomes valid and remove its parent class if so ? Any help would be much appreciated, thank you !

  Read the article

< Previous Page | 52 53 54 55 56 57 58 59 60 61 62 63  | Next Page >