152 lines
3.3 KiB
PHP
152 lines
3.3 KiB
PHP
; command line parsing code for aclock
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;
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; Copyright (c) 2003 Thomas Mathys
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; killer@vantage.ch
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;
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; This program is free software; you can redistribute it and/or modify
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; it under the terms of the GNU General Public License as published by
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; the Free Software Foundation; either version 2 of the License, or
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; (at your option) any later version.
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;
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; This program is distributed in the hope that it will be useful,
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; but WITHOUT ANY WARRANTY; without even the implied warranty of
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; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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; GNU General Public License for more details.
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;
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; You should have received a copy of the GNU General Public License
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; along with this program; if not, write to the Free Software
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; Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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;
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%ifndef _CMDLINE_INC
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%define _CMDLINE_INC
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;********************************************************************
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; parse the command line
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; input : nothing
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; output : wndXPos, wndYPos, wndWidth, wndHeight
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; are changed.
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; destroys : nothing
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;********************************************************************
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parseCommandLine:
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pushad
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pushfd
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; terminate command line, just to be sure
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mov byte [cmdLine + 256],0
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; go through all tokens
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mov eax,cmdLine ; eax -> command line
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.parseloop:
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mov ebx,delimiters ; ebx -> token delimiter list
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call strtok ; get next parameter
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or eax,eax ; no more parameters ?
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jz .nomoretokens
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mov cl,[eax] ; get 1st char of parameter
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cmp cl,'x' ; which parameter is it ?
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je .param_x
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cmp cl,'y'
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je .param_y
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cmp cl,'w'
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je .param_w
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cmp cl,'h'
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je .param_h
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; if we reach this line it's an unknown parameter, ignore it
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.nextparam:
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xor eax,eax ; set eax = 0 to continue
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jmp .parseloop ; after last token.
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.nomoretokens:
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DBG_BOARD_PRINTDWORD [wndXPos]
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DBG_BOARD_PRINTCHAR 32
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DBG_BOARD_PRINTDWORD [wndYPos]
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DBG_BOARD_PRINTCHAR 32
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DBG_BOARD_PRINTDWORD [wndWidth]
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DBG_BOARD_PRINTCHAR 32
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DBG_BOARD_PRINTDWORD [wndHeight]
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DBG_BOARD_PRINTNEWLINE
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popfd
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popad
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ret
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; eax -> first character of the parameter
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.param_x:
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push eax
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call parsePositionParam
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mov [wndXPos],eax
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pop eax
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jmp .nextparam
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; eax -> first character of the parameter
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.param_y:
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push eax
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call parsePositionParam
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mov [wndYPos],eax
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pop eax
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jmp .nextparam
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; eax -> first character of the parameter
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.param_w:
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push eax
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call parseSizeParam
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mov [wndWidth],eax
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pop eax
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jmp .nextparam
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; eax -> first character of the parameter
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.param_h:
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push eax
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call parseSizeParam
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mov [wndHeight],eax
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pop eax
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jmp .nextparam
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; parse position parameter
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; input : eax = address of first character of parameter
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; output : eax contains position
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; destroys : nothing
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parsePositionParam:
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push ebx
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push esi
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pushfd
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; is the second char of the parameter a '-' ?
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inc eax
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xor ebx,ebx ; assume it isn't
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cmp byte [eax],'-'
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jne .nominus
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mov ebx,1 ; yes -> set flag...
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inc eax ; ...and move to next char
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.nominus:
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; convert rest of parameter to doubleword
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mov esi,eax
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call string2dword
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; negate if necessary
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or ebx,ebx
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jz .rotationshyperboloid
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neg eax
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.rotationshyperboloid:
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popfd
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pop esi
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pop ebx
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ret
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; parse dimension parameter
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; input : eax = address of first char of parameter
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; output : eax contains dimension
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; destroys : nothing
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parseSizeParam:
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push esi
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pushfd
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lea esi,[eax + 1] ; esi -> 2nd char of parameter
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call string2dword
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popfd
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pop esi
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ret
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%endif
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