nsstring

I'm using very tricky fighting methods :) to make a string like Fi?le*/ Name safe for using as a file name like File_Name . I'm sure there is a cocoa way to convert it. And I'm sure the best place to ask is here :) Thank you! Unless you're explicitly running the shell or implicitly running the shell by using a function such as popen or system , there's no reason to escape anything but the pathname separator. You may also want to enforce that the filename does not begin with a full stop (which would cause Finder to hide the file) and probably should also enforce that it is not empty and is

I want to get a character from somewhere inside an NSString. I want the result to be an NSString. This is the code I use to get a single character at index it: [[s substringToIndex:i] substringToIndex:1] Is there a better way to do it? This will also retrieve a character at index i as an NSString, and you're only using an NSRange struct rather than an extra NSString. NSString * newString = [s substringWithRange:NSMakeRange(i, 1)]; joshualmf If you just want to get one character from an a NSString, you can try this. - (unichar)characterAtIndex:(NSUInteger)index; Used like so: NSString

I have a string that is being generate from a formula, however I only want to use the string as long as all of its characters are numeric, if not that I want to do something different for instance display an error message. I have been having a look round but am finding it hard to find anything that works along the lines of what I am wanting to do. I have looked at NSScanner but I am not sure if its checking the whole string and then I am not actually sure how to check if these characters are numeric - (void)isNumeric:(NSString *)code{ NSScanner *ns = [NSScanner scannerWithString:code]; if (

This method is deprecated in iOS 7.0: drawAtPoint:forWidth:withFont:fontSize:lineBreakMode:baselineAdjustment: Now use drawInRect:withAttributes: instead. I can't find the attributeName of fontSize and baselineAdjustment. Edit Thanks @Puneet answer. Actually, I mean if there doesn't have these key, how to implement this method in iOS 7? Like below method: + (CGSize)drawWithString:(NSString *)string atPoint:(CGPoint)point forWidth:(CGFloat)width withFont:(UIFont *)font fontSize:(CGFloat)fontSize lineBreakMode:(IBLLineBreakMode)lineBreakMode baselineAdjustment:(UIBaselineAdjustment

When using [NSString boundingRectWithSize:options:attributes] the size of the rect that is returned is taller than I would expect for certain strings. The height returned appears to represent the maximum possible height of a string with the given attributes, rather than the height of the string itself. Assuming the same attributes and options, the height returned for the string " cars " is the same height returned for the string " ÉTAS-UNIS " (note the accent on the E). I would have expected boundingRectWithSize to only consider the characters in the given string, which in my opinion would

I've already found how to capitalize all words of the sentence, but not the first word only. NSString *txt =@"hi my friends!" [txt capitalizedString]; I don't want to change to lower case and capitalize the first char. I'd like to capitalize the first word only without change the others. Johan Kool Here is another go at it: NSString *txt = @"hi my friends!"; txt = [txt stringByReplacingCharactersInRange:NSMakeRange(0,1) withString:[[txt substringToIndex:1] uppercaseString]]; For Swift language: txt.replaceRange(txt.startIndex...txt.startIndex, with: String(txt[txt.startIndex])