͗jh dZddlmZmZdddededefdZd d ded eeefd edd fdZdd ddede ded edef dZ dd ddede de ded edef dZ y )zShared binary I/O helpers for format parsers. Variants are kept separate (rather than collapsed into one helper) because each caller depends on slightly different semantics; stream vs random access, raw bytes vs decoded str, simple vs chunked reads. )BinaryIOUnionF)chunkedfilerreturnc|rg} |jd}|sn_|jd}|dk7r7|j|d||jt ||z dz dn|j|sdj |St } |jd}|r|dk(r t|S|j|6)aRead a null-terminated string from a binary file. Returns the bytes between the cursor and the next null (excluding the null itself). Caller is responsible for decoding and any filtering. Args: file: Open binary file positioned at the string start. chunked: If True, read in 256-byte chunks and seek back past the null. Faster for long strings; equivalent to char-by-char for short ones. Defaults to False. N) readfindappendseeklenjoin bytearrayextendbytes)rrchunkschunknull_poscharschars VC:\Users\pivot\Documents\cueki\casual-preloader\Lib\site-packages\valve_parsers/_io.pyread_cstring_streamr sIIcNEzz'*H2~ eIX./ CJ1A56: MM% xx KE yy|tw  <  T r replaceerrorsstringr Ncrt|tr|jd|}|j|dzy)ayWrite a null-terminated string to a binary file. Args: file: Open binary file. string: str (ASCII-encoded with the given errors policy) or bytes (written as-is). errors: Encode error policy when `string` is a str. Defaults to "replace" to match the library's forgiving stance on corrupt or non-ASCII inputs. asciirr N) isinstancestrencodewrite)rr!r s r write_cstringr(-s1&#wv6JJv r r#)encodingr bufoffsetr)cr|jd|}|dkr t|}|||j||S)aWRead a null-terminated string from a bytes buffer at a fixed offset. Searches forward for the null and decodes everything up to it. Args: buf: Source buffer. offset: Byte offset to start reading from. encoding: Text encoding. Defaults to ASCII. errors: Decode error policy. Defaults to "replace". r rr)rrdecode)r*r+r)r ends rread_cstring_atr/?s@" ((7F #C Qw#h vc? ! !(6 ! ::r lengthcn||||z}|jd}|dk\r|d|}|j||S)aRead a fixed-width null-padded string from a bytes buffer. Reads exactly `length` bytes from `offset`, truncates at the first null, and decodes. Used for fixed-width name fields in binary headers. Args: buf: Source buffer. offset: Byte offset to start reading from. length: Field width in bytes. encoding: Text encoding. Defaults to ASCII. errors: Decode error policy. Defaults to "replace". r rNr)rr-)r*r+r0r)r rr.s rread_fixed_stringr2VsG( v 'E **W C axds  <<< 00r ) __doc__typingrrboolrrr%r(intr/r2r rr8s #