;;================================================================================================;;
;;//// libio_p.asm //// (c) mike.dld, 2006-2008 //////////////////////////////////////////////////;;
;;================================================================================================;;
;; ;;
;; This file is part of Common development libraries (Libs-Dev). ;;
;; ;;
;; Libs-Dev is free software: you can redistribute it and/or modify it under the terms of the GNU ;;
;; Lesser General Public License as published by the Free Software Foundation, either version 2.1 ;;
;; of the License, or (at your option) any later version. ;;
;; ;;
;; Libs-Dev is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without ;;
;; even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ;;
;; Lesser General Public License for more details. ;;
;; ;;
;; You should have received a copy of the GNU Lesser General Public License along with Libs-Dev. ;;
;; If not, see <http://www.gnu.org/licenses/>. ;;
;; ;;
;;================================================================================================;;
mem.alloc dd ?
mem.free dd ?
mem.realloc dd ?
dll.load dd ?
;;================================================================================================;;
proc libio._.init ;///////////////////////////////////////////////////////////////////////////////;;
;;------------------------------------------------------------------------------------------------;;
;? Library entry point (called after library load) ;;
;;------------------------------------------------------------------------------------------------;;
;> eax = memory allocation routine <mem.alloc*> ;;
;> ebx = memory freeing routine <mem.free*> ;;
;> ecx = memory reallocation routine <mem.realloc*> ;;
;> edx = library loading routine <dll.load*> ;;
;;------------------------------------------------------------------------------------------------;;
;< eax = 1 (fail) / 0 (ok) (library initialization result) ;;
;;================================================================================================;;
mov [mem.alloc], eax
mov [mem.free], ebx
mov [mem.realloc], ecx
mov [dll.load], edx
xor eax, eax
ret
endp
;;================================================================================================;;
proc libio._.match_wildcard _str, _wcard ;////////////////////////////////////////////////////////;;
;;------------------------------------------------------------------------------------------------;;
;? Match string against wildcard ;;
;? Based on http://user.cs.tu-berlin.de/~schintke/references/wildcards/ ;;
;? 1997-2001 (c) Florian Schintke ;;
;;------------------------------------------------------------------------------------------------;;
;> _str = string (filename in most cases) <asciiz> ;;
;> _wcard = mask expressed using wilcards (?, *, [..]) <asciiz> ;;
;;------------------------------------------------------------------------------------------------;;
;< eax = false / true (match result) ;;
;;================================================================================================;;
push ecx edx esi edi
mov dl, 1 ; fit
mov esi, [_wcard]
mov edi, [_str]
.loop_wildcard:
mov al, [esi]
or al, al
jz .loop_wildcard_exit
or dl, dl
jz .loop_wildcard_exit
cmp byte[edi], 0
je .loop_wildcard_exit
cmp al, '['
je .process_set
cmp al, '?'
je .process_question
cmp al, '*'
je .process_asterisk
xor dl, dl
cmp [edi], al
jne @f
inc dl
@@: inc edi
.loop_wildcard_next:
inc esi
jmp .loop_wildcard
.process_set:
inc esi
xor dl, dl ; fit
xor dh, dh ; negation
mov cl, 1 ; at_beginning
cmp byte[esi], '^'
jne .loop_set_wildcard
inc dh
inc esi
.loop_set_wildcard:
mov al, [esi]
cmp al, ']'
jne @f
or cl, cl
jz .loop_set_wildcard_exit
@@: or dl, dl
jnz .loop_set_wildcard_fit
cmp al, '-'
jne .loop_set_wildcard_not_range
mov ch, [esi - 1]
cmp [esi + 1], ch
jbe .loop_set_wildcard_not_range
cmp byte[esi + 1], ']'
je .loop_set_wildcard_not_range
or cl, cl
jnz .loop_set_wildcard_not_range
cmp [edi], ch
jb .loop_set_wildcard_fit
mov ch, [esi + 1]
cmp [edi], ch
ja .loop_set_wildcard_fit
mov dl, 1
inc esi
jmp .loop_set_wildcard_fit
.loop_set_wildcard_not_range:
cmp [edi], al
jne .loop_set_wildcard_fit
mov dl, 1
.loop_set_wildcard_fit:
inc esi
xor cl, cl
jmp .loop_set_wildcard
.loop_set_wildcard_exit:
or dh, dh
jz @f
xor dl, 1
@@: or dl, dl
jz @f
inc edi
@@:
jmp .loop_wildcard_next
.process_question:
inc edi
jmp .loop_wildcard_next
.process_asterisk:
mov dl, 1
inc esi
.loop_asterisk_del_shit:
lodsb
cmp byte[edi], 0
je .loop_asterisk_del_shit_exit
cmp al, '?'
jne @f
inc edi
jmp .loop_asterisk_del_shit
@@: cmp al, '*'
je .loop_asterisk_del_shit
.loop_asterisk_del_shit_exit:
@@: cmp al, '*'
jne @f
lodsb
jmp @b
@@:
dec esi
cmp byte[edi], 0
jne .process_asterisk_skip_exit
xor dl, dl
or al, al
jnz @f
inc dl
@@: dec esi
jmp .loop_wildcard_next
.process_asterisk_skip_exit:
stdcall libio._.match_wildcard, edi, esi
or eax, eax
jnz .process_asterisk_not_match
.loop_asterisk_match:
inc edi
.loop_asterisk_char_match:
mov al, [esi]
cmp [edi], al
je .loop_asterisk_char_match_exit
cmp byte[esi], '['
je .loop_asterisk_char_match_exit
cmp byte[edi], 0
je .loop_asterisk_char_match_exit
inc edi
jmp .loop_asterisk_char_match
.loop_asterisk_char_match_exit:
cmp byte[edi], 0
je @f
stdcall libio._.match_wildcard, edi, esi
or eax, eax
jnz .loop_asterisk_match_exit
jmp .loop_asterisk_match
@@:
xor dl, dl
.loop_asterisk_match_exit:
.process_asterisk_not_match:
cmp byte[esi], 0
jne @f
cmp byte[edi], 0
jne @f
mov dl, 1
@@:
dec esi
jmp .loop_wildcard_next
.loop_wildcard_exit:
or dl, dl
jz .exit
@@: cmp byte[esi], '*'
jne .exit
inc esi
jmp @b
.exit:
cmp byte[esi], 0
je @f
xor dl, dl
@@: cmp byte[edi], 0
je @f
xor dl, dl
@@:
movzx eax, dl
pop edi esi edx ecx
ret
endp
;;================================================================================================;;
proc libio._.find_matching_file _ffb ;////////////////////////////////////////////////////////////;;
;;------------------------------------------------------------------------------------------------;;
;? Find file with matching attributes (`FindFileBlock.Options.Attributes`) and mask ;;
;? (`FindFileBlock.Options.Mask`) starting from Nth (`FindFileBlock.InfoBlock.Position`) file in ;;
;? directory (`FindFileBlock.InfoBlock.FileName`) ;;
;;------------------------------------------------------------------------------------------------;;
;> _ffb = find file block <FindFileBlock*> ;;
;;------------------------------------------------------------------------------------------------;;
;< eax = 0 (error) / matched file info pointer <FileInfo*> ;;
;;================================================================================================;;
push ebx edx
mov edx, [_ffb]
.loop_find:
lea ebx, [edx + FindFileBlock.InfoBlock]
mcall 70
or eax, eax
jnz .loop_find_error
mov eax, [edx + FindFileBlock.Info.Attributes]
and eax, [edx + FindFileBlock.Options.Attributes]
jz .loop_find_next
lea eax, [edx + FindFileBlock.Info.FileName]
stdcall libio._.match_wildcard, eax, [edx + FindFileBlock.Options.Mask]
or eax, eax
jnz .loop_find_exit
.loop_find_next:
inc [edx + FindFileBlock.InfoBlock.Position]
jmp .loop_find
.loop_find_error:
xor eax, eax
pop edx ebx
ret
.loop_find_exit:
lea eax, [edx + FindFileBlock.Info]
pop edx ebx
ret
endp