;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; Copyright (C) KolibriOS team 2004-2024. All rights reserved. ;;
;; Distributed under terms of the GNU General Public License ;;
;; ;;
;; Written by hidnplayr@kolibrios.org ;;
;; ;;
;; GNU GENERAL PUBLIC LICENSE ;;
;; Version 2, June 1991 ;;
;; ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; TODO: work correctly with user prefixes.
; use first byte of nick for prefix ONLY (use a space for those that do not have special powers..)
user_prefixes db '~&@%+ ', 0 ; in descending order
; TODO: update selected user if needed
; esi is ptr to nick
; ebx is ptr to window
align 4
user_add:
cmp [ebx + window.users], MAX_USERS
jae .fail
; Check if user is already listed (case insensitive)
mov edi, [ebx + window.data_ptr]
add edi, window_data.names
mov ebp, [ebx + window.users]
inc ebp ; CHECKME
push esi edi
.restart:
mov ecx, MAX_NICK_LEN
.loop1:
lodsb
cmp al, '@'
jne @f
mov al, ' ' ; give @ highest priority
@@:
cmp al, 'A'
jb @f
cmp al, 'Z'
ja @f
add al, 'a' - 'A' ; convert to lowercase
@@:
dec ecx
jz .got_it
.loop2:
mov dl, [edi]
cmp dl, 0
je .got_it
cmp dl, '@'
jne @f
mov dl, ' ' ; give @ highest priority
@@:
cmp dl, 'A'
jb @f
cmp dl, 'Z'
ja @f
add dl, 'a' - 'A' ; convert to lowercase
@@:
cmp al, dl
jb .got_it
je .check_next
pop edi esi
add edi, MAX_NICK_LEN
push esi edi
dec ebp
jnz .restart
.check_next:
inc edi
jmp .loop1
.got_it:
pop edi esi
; OK, insert it here..
; mov all trailing usernames by MAX_NICK_LEN bytes
push esi edi
mov esi, [ebx + window.data_ptr]
add esi, window_data.names + MAX_NICK_LEN * (MAX_USERS - 1) - 4 ; -4 because we're copying backward, dword wise
mov ecx, esi
sub ecx, edi
add ecx, MAX_NICK_LEN
shr ecx, 2
lea edi, [esi + MAX_NICK_LEN]
std
rep movsd
cld
pop edi esi
; Now insert our new username
mov ecx, MAX_NICK_LEN-1
.fill:
lodsb
cmp al, ' '
je .done
cmp al, '!'
je .done
cmp al, 13
je .done
cmp al, 10
je .done
cmp al, 0
je .done
stosb
loop .fill
.done:
xor al, al
stosb
inc [ebx + window.users]
or [ebx + window.flags], FLAG_UPDATED
dec esi
.fail:
ret
; TODO: update selected user if needed
; esi is ptr to nick
; ebx is ptr to window
align 4
user_remove:
call user_find
jz .fail
lea esi, [edi + MAX_NICK_LEN]
mov ecx, [ebx + window.data_ptr]
add ecx, window_data.names + MAX_NICK_LEN * MAX_USERS
sub ecx, esi
shr ecx, 2
rep movsd
dec [ebx + window.users]
or [ebx + window.flags], FLAG_UPDATED
.fail:
ret
; IN:
; esi is ptr to nick
; ebx is ptr to window
; OUT:
; edi is ptr to nick in userlist
align 4
user_find:
mov eax, [ebx + window.users]
test eax, eax
jz .fail
mov edi, [ebx + window.data_ptr]
add edi, window_data.names
.loop:
push esi edi
mov ecx, MAX_NICK_LEN
repe cmpsb
cmp byte[edi-1], 0
je .got_it
; TODO: check byte[esi] too!
pop edi esi
add edi, MAX_NICK_LEN
dec eax
jnz .loop
jmp .fail
.got_it:
pop edi esi
test edi, edi ; to clear zero flag
ret
.fail:
xor edi, edi
ret
user_remove_all:
xor eax, eax
mov edi, [window_print]
mov [edi + window.users], eax
mov [edi + window.selected], eax
mov edi, [edi + window.data_ptr]
add edi, window_data.names
mov ecx, MAX_NICK_LEN * MAX_USERS / 4
rep stosd
ret