undmail/guiproto/LineTextFormatter.m

#import "LineTextFormatter.h"


@implementation LineTextFormatter
-(NSAttributedString *)formatWithAttributedString:
    (NSAttributedString *)attributedString{
    NSString *string;
    NSMutableAttributedString *ret;
    NSRange lineRange;
    NSRange stringRange;
    
    ret = [[[NSMutableAttributedString alloc] init] autorelease];
    [ret appendAttributedString:attributedString];
    string = [attributedString string];
    
    // patternが空文字列の場合はすべてに適用する。
    string = [attributedString string];
    if([_pattern isEqual:@""]){
        [ret setAttributes:[self attributedDictionary] 
                    range:NSMakeRange(0, [string length])];
        return ret;
    }
    stringRange = NSMakeRange(0, [string length]);
    while(stringRange.length > 0){
        lineRange = [string lineRangeForRange:NSMakeRange(stringRange.location, 0)];
        if([[string substringWithRange:lineRange] hasPrefix:_pattern]){
            [ret setAttributes:[self attributedDictionary] range:lineRange];
        }
        stringRange.location = NSMaxRange(lineRange);
        stringRange.length -= lineRange.length;
    }
    return ret;
}

@end