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$bfind Identifier - mIRC
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$bfind searches &binvar for a matching value. Returns the Nth byte position in the binvar unless .regex prop is used, in which case it returns the number of matches.
Synopsis
$bfind(&binvar, N , M , [name])
Parameters
- &binvar - A binary variable name which begins with the & symbol.
- N - The position within the binary variable where it starts searching.
- M - Value being searched for, either ASCII decimals 0-255 or text.
- name - an optional name to go with .regex, to be able to reference captured group later on.
Properties
- text - Treats a numeric N as text instead of bytes value, also decode bytes from utf8 before searching.
- textcs - When M is recognized as text, search is performed as case-sensitive
- ansi - the bytes of the binvar are not decoded from utf8 before searching.
- .regex - performs a regex search, you can use the optional 4th name parameter to reference captured group later on. The N parameter is the Nth position in the binvar at which the input string for the regex engine starts, so that $bfind(&var,3,/^pattern/).regex are possible where ^ matches because the input string starts at byte 3 in the binvar.
Note: Searches for text are case-insensitive by default.
Example
//bset -t &var 1 test wavmIRC32WAV test | echo -a space beginning pos1: $bfind(&var,1,32) / space beginning pos11: $bfind(&var,11,32) / finds string '32' instead of chr(32) $bfind(&var,1,32).text / case-sensitive: $bfind(&var, 1, $asc(W) $asc(A) $asc(V) ) / case-insensitive: $bfind(&var,1,WAV).text / case-sensitive: $bfind(&var,1,WAV).textcs / not found: $bfind(&var,1,abc).text result: space beginning pos1: 5 / space beginning pos11: 18 / finds string '32' instead of chr(32) 13 / case-sensitive: 15 / case-insensitive: 6 / case-sensitive: 15 / not found: 0 Note that 32 searches for ASCII 32 (space) except when .text is used. Searching for "WAV" is case-insensitive and finds the lowercase letters, but the search for the 3 ASCII values finds the matching case. Using .textcs is available as of 7.58 to search for a case-sensitive text string without translating it to byte values. ;Note: starting position in the binvar is either N = 0 or 1 //bset -t &var 1 testing | echo -ag $bfind(&var,0,/./g).regex -- $bfind(&var,2,/^e/).regex ;7 -- 1
Compatibility
Added: mIRC v5.7
Added on: 02 Feb 2000
Note: Unless otherwise stated, this was the date of original functionality.
Further enhancements may have been made in later versions.