special-characters

I have keywords like "some-or-other" where the hyphens matter in the search through my mysql database. I'm currently using the fulltext function. Is there a way to escape the hyphen character? I know that one option is to comment out #define HYPHEN_IS_DELIM in the myisam/ftdefs.h file, but unfortunately my host does not allow this. Is there another option out there? Edit 3-8-11 Here's the code I have right now: $search_input = $_GET['search_input']; $keyword_safe = mysql_real_escape_string($search_input); $keyword_safe_fix = "*'\"" . $keyword_safe . "\"'*"; $sql = " SELECT *, MATCH(coln1,

They both mean "new line" but when is one used over the other? \r\n is a Windows Style \n is a POSIX Style \r is a old pre-OS X Macs Style, Modern Mac's using POSIX Style. \r is a carrige return and \n is a line feed, in old computers where it not have monitor, have only printer to get out programs result to user, if you want get printing from staring of new line from left, you must get \n for Line Feed , and \r for get Carriage return to the most left position, this is from old computers syntax saved to this time on Windows platform. \n is a newline only, \r\n is a newline and a carriage

The printf() documentation says that if someone wants to print % in C, he can use: printf("%%") Why is it not: printf("\%") as with other special characters? Because the % is handled by printf . It is not a special character in C, but printf itself treats it differently. The backslash is processed by the compiler when interpreting the source text of the program. So the common result is that the source text "\%" produces a string containing ”%”. The format string is interpreted by the printf routine, so it processes the characters passed to it. By this time, the backslash is no longer present,

What's the difference between iconv() and mb_convert_encoding() in PHP? Does one perform better, faster, etc. ( eg. with specific encodings )? In what situations would one be preferred over the other? Here's what I think I know already: iconv() included with most installs of PHP. when characters that can't be mapped to the new character set are found, you can specify if they are converted to a 'similar' character, or ignored. mb_convert_encoding() usually requires installing the php-mbstring extension. is able to handle HTML-ENTITIES , converting to and from web hex codes. Are there other

Do you know how to look for special characters with google...? I'm looking at bash code and there's the ## operator. I would like to know what It does but I wasn't able to figure out a way to protect the character (I'm not sure it's even possible). This is particularly annoying when you're looking for some code patterns, some characters are always ignored. Google strips most punctuation from queries, as described here , so it won't help you with the bash syntax. It's very easy to search for the string "##" in the bash documentation: Just run "info bash", hit "s", and enter "##" as the search

I'm editing a network protocol frame stored a file in Unix ( \n newlines). I need to insert the carriage return character ( U+000D aka \r ). When I try to paste it from the clipboard ( "+p ) or type it using Ctrl + Shift + u - 000d , the linefeed is inserted ( U+000A ). What is the right way to do it? R Samuel Klatchko Type: ctrl - v ctrl - m On Windows Use: ctrl - q ctrl - m Ctrl - V tells vi that the next character typed should be inserted literally and ctrl - m is the keystroke for a carriage return. 来源： https://stackoverflow.com/questions/1585449/insert-the-carriage-return-character-in-vim

I'm trying to find the Unicode symbol to make a button display the Unicode pause symbol. I was able to find that the Unicode play symbol is &#9658 but I'm looking for the equivalent of the Unicode pause symbol. There are various symbols which could be considered adequate replacements, including: | | - two standard (bolded) vertical bars. ▋▋ - ▋ and another ▋ ▌▌ - ▌ and another ▌ ▍▍ - ▍ and another ▍ ▎▎ - ▎ and another ▎ ❚❚ - ❚ and another ❚ I may have missed out one or two, but I think these are the better ones. Here's a list of symbols just in case. Roko C. Buljan To avoid messing with