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;;================================================================================================;;

;;//// libini.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 ;;

;; General Public License as published by the Free Software Foundation, either version 3 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  ;;

;; General Public License for more details.                                                       ;;

;;                                                                                                ;;

;; You should have received a copy of the GNU General Public License along with Libs-Dev. If not, ;;

;; see .                                                            ;;

;;                                                                                                ;;

;;================================================================================================;;

;;                                                                                                ;;

;; 2008-08-06 (mike.dld)                                                                          ;;

;;   changes:                                                                                     ;;

;;     - split private procs into libini_p.asm, added comments                                    ;;

;; 2008-02-07 (mike.dld)                                                                          ;;

;;   changes:                                                                                     ;;

;;     - renamed all *.aux.* to *._.* to match overall libraries design                           ;;

;; 2007-09-26 (mike.dld)                                                                          ;;

;;   bug-fixes:                                                                                   ;;

;;     - value was not correctly trimmed (reported by diamond)                                    ;;

;; 2007-08-01 (mike.dld)                                                                          ;;

;;   bug-fixes:                                                                                   ;;

;;     - serious defect in ini.set_str causing displaced write operations                         ;;

;;       (reported by diamond)                                                                    ;;

;;     - another serious defect in ini.enum_keys introduced with refactoring                      ;;

;;   changes:                                                                                     ;;

;;     - callback for enum_keys now takes additional parameter - key value                        ;;

;;     - handling trailing spaces in section/key/value                                            ;;

;; 2007-05-19 (mike.dld)                                                                          ;;

;;   bug-fixes:                                                                                   ;;

;;     - last char still wasn't read correctly                                                    ;;

;;     - digits of number were reversed when using ini.set_int                                    ;;

;;     - now using 'ini.aux.unget_char' instead of dangerous 'dec esi'                            ;;

;;   changes:                                                                                     ;;

;;     - all non-public functions now start with ini.aux.*                                        ;;

;;     - added ini.enum_sections and ini.enum_keys                                                ;;

;;     - removed ini.query_sec (use ini.enum_* instead)                                           ;;

;;                                                                                                ;;

;;================================================================================================;;

format MS COFF

public @EXPORT as 'EXPORTS'

include '../../../../proc32.inc'

include '../../../../macros.inc'

include '../libio/libio.inc'

purge section ; mov,add,sub

include 'libini_p.inc'

section '.flat' code readable align 16

include 'libini_p.asm'

;;================================================================================================;;

proc ini.enum_sections _f_name, _callback ;///////////////////////////////////////////////////////;;

;;------------------------------------------------------------------------------------------------;;

;? Enumerate sections, calling callback function for each of them                                 ;;

;;------------------------------------------------------------------------------------------------;;

;> _f_name = ini filename                                                                 ;;

;> _callback = callback function address: func(f_name, sec_name), where                           ;;

;>   f_name = ini filename (as passed to the function)                                    ;;

;>   sec_name = section name found                                                        ;;

;;------------------------------------------------------------------------------------------------;;

;< eax = -1 (error) / 0                                                                           ;;

;;================================================================================================;;

locals

  f	  IniFile

  f_addr  dd ?

  sec_buf dd ?

endl

	push	ebx esi edi

	cld

	invoke	mem.alloc, ini.MAX_NAME_LEN

	or	eax, eax

	jz	.exit_error.2

	mov	[sec_buf], eax

	xor	eax, eax

	mov	[f.fh], eax

	mov	[f.buf], eax

	invoke	file.open, [_f_name], O_READ

	cmp	eax, 32

	jb	.exit_error

	mov	[f.fh], eax

	invoke	mem.alloc, ini.MEM_SIZE

	or	eax, eax

	jz	.exit_error

	mov	[f.buf], eax

	lea	ebx, [f]

	mov	[f_addr], ebx

	invoke	file.seek, [f.fh], 0, SEEK_SET

	stdcall libini._.preload_block, [f_addr]

  .next_section:

	stdcall libini._.find_next_section, [f_addr]

	or	eax, eax

	jnz	.exit_error

	stdcall libini._.get_char, [f_addr]

	stdcall libini._.skip_spaces, [f_addr]

;       inc     esi

;       dec     [f.cnt]

	mov	edi, [sec_buf]

    @@: stdcall libini._.get_char, [f_addr]

	cmp	al, ']'

	je	@f

	or	al, al

	jz	.exit_ok

	cmp	al, 13

	je	.next_section

	cmp	al, 10

	je	.next_section

	stosb

	jmp	@b

    @@: xor	al, al

	stosb

	add	edi, -2

    @@: cmp	byte[edi], 32

	ja	@f

	mov	byte[edi], 0

	dec	edi

	jmp	@b

    @@:

	pushad

	mov	eax, [f_addr]

	stdcall [_callback], [_f_name], [sec_buf]

	or	eax, eax

	popad

	jnz	.next_section

  .exit_ok:

	invoke	file.close, [f.fh]

	invoke	mem.free, [f.buf]

	invoke	mem.free, [sec_buf]

	xor	eax, eax

	pop	edi esi ebx

	ret

  .exit_error:

	invoke	file.close, [f.fh]

	invoke	mem.free, [f.buf]

	invoke	mem.free, [sec_buf]

  .exit_error.2:

	or	eax, -1

	pop	edi esi ebx

	ret

endp

;;================================================================================================;;

proc ini.enum_keys _f_name, _sec_name, _callback ;////////////////////////////////////////////////;;

;;------------------------------------------------------------------------------------------------;;

;? Enumerate keys within a section, calling callback function for each of them                    ;;

;;------------------------------------------------------------------------------------------------;;

;> _f_name = ini filename                                                                 ;;

;> _sec_name = section name                                                               ;;

;> _callback = callback function address: func(f_name, sec_name, key_name, key_value), where      ;;

;>   f_name = ini filename (as passed to the function)                                    ;;

;>   sec_name = section name (as passed to the function)                                  ;;

;>   key_name = key name found                                                            ;;

;>   key_value = value of key found                                                       ;;

;;------------------------------------------------------------------------------------------------;;

;< eax = -1 (error) / 0                                                                           ;;

;;================================================================================================;;

locals

  f	  IniFile

  f_addr  dd ?

  key_buf dd ?

  val_buf dd ?

endl

	push	ebx esi edi

	cld

	invoke	mem.alloc, ini.MAX_NAME_LEN

	or	eax, eax

	jz	.exit_error.3

	mov	[key_buf], eax

	invoke	mem.alloc, ini.MAX_VALUE_LEN

	or	eax, eax

	jz	.exit_error.2

	mov	[val_buf], eax

	xor	eax, eax

	mov	[f.fh], eax

	mov	[f.buf], eax

	invoke	file.open, [_f_name], O_READ

	cmp	eax, 32

	jb	.exit_error

	mov	[f.fh], eax

	invoke	mem.alloc, ini.MEM_SIZE

	or	eax, eax

	jz	.exit_error

	mov	[f.buf], eax

	lea	ebx, [f]

	mov	[f_addr], ebx

	stdcall libini._.find_section, ebx, [_sec_name]

	or	eax, eax

	jnz	.exit_error

  .next_key:

	stdcall libini._.skip_line, [f_addr]

	stdcall libini._.skip_nonblanks, [f_addr]

	or	al, al

	jz	.exit_error

	cmp	al, '['

	je	.exit_error

	mov	edi, [key_buf]

    @@: stdcall libini._.get_char, [f_addr]

	or	al, al

	jz	.exit_error

	cmp	al, '='

	je	@f

	stosb

	jmp	@b

    @@:

	xor	al, al

	stosb

	add	edi, -2

    @@: cmp	byte[edi], 32

	ja	@f

	mov	byte[edi], 0

	dec	edi

	jmp	@b

    @@: stdcall libini._.low.read_value, [f_addr], [val_buf], ini.MAX_VALUE_LEN

	pushad

	stdcall [_callback], [_f_name], [_sec_name], [key_buf], [val_buf]

	or	eax, eax

	popad

	jnz	.next_key

    @@: invoke	file.close, [f.fh]

	invoke	mem.free, [f.buf]

	xor	eax, eax

	stosb

	pop	edi esi ebx

	ret

  .exit_error:

	invoke	file.close, [f.fh]

	invoke	mem.free, [f.buf]

	invoke	mem.free, [val_buf]

  .exit_error.2:

	invoke	mem.free, [key_buf]

  .exit_error.3:

	or	eax, -1

	pop	edi esi ebx

	ret

endp

;;================================================================================================;;

proc ini.get_str _f_name, _sec_name, _key_name, _buffer, _buf_len, _def_val ;/////////////////////;;

;;------------------------------------------------------------------------------------------------;;

;? Read string                                                                                    ;;

;;------------------------------------------------------------------------------------------------;;

;> _f_name = ini filename                                                                 ;;

;> _sec_name = section name                                                               ;;

;> _key_name = key name                                                                   ;;

;> _buffer = destination buffer address                                                    ;;

;> _buf_len = buffer size (maximum bytes to read)                                          ;;

;> _def_val = default value to return if no key, section or file found                    ;;

;;------------------------------------------------------------------------------------------------;;

;< eax = -1 (error) / 0                                                                           ;;

;< [_buffer] = [_def_val] (error) / found key value                                       ;;

;;================================================================================================;;

locals

  f	 IniFile

  f_addr dd ?

endl

	push	ebx esi edi

	xor	eax, eax

	mov	[f.fh], eax

	mov	[f.buf], eax

	invoke	file.open, [_f_name], O_READ

	cmp	eax, 32

	jb	.exit_error

	mov	[f.fh], eax

	invoke	mem.alloc, ini.MEM_SIZE

	or	eax, eax

	jz	.exit_error

	mov	[f.buf], eax

	lea	ebx, [f]

	mov	[f_addr], ebx

	stdcall libini._.find_section, ebx, [_sec_name]

	or	eax, eax

	jnz	.exit_error

	stdcall libini._.find_key, ebx, [_key_name]

	or	eax, eax

	jnz	.exit_error

	stdcall libini._.low.read_value, [f_addr], [_buffer], [_buf_len]

;       mov     edi, [_buffer]

;   @@: dec     [_buf_len]

;       jz      @f

;       stdcall ini.aux.get_char, [f_addr]

;       or      al, al

;       jz      @f

;       cmp     al, 13

;       je      @f

;       cmp     al, 10

;       je      @f

;       stosb

;       jmp     @b

    @@: invoke	file.close, [f.fh]

	invoke	mem.free, [f.buf]

	xor	eax, eax

	stosb

	pop	edi esi ebx

	ret

  .exit_error:

	invoke	file.close, [f.fh]

	invoke	mem.free, [f.buf]

	mov	esi, [_def_val]

	mov	edi, [_buffer]

    @@: lodsb

	stosb

	or	al, al

	jnz	@b

	or	eax, -1

	pop	edi esi ebx

	ret

endp

;;================================================================================================;;

proc ini.set_str _f_name, _sec_name, _key_name, _buffer, _buf_len ;///////////////////////////////;;

;;------------------------------------------------------------------------------------------------;;

;? Write string                                                                                   ;;

;;------------------------------------------------------------------------------------------------;;

;> _f_name = ini filename                                                                 ;;

;> _sec_name = section name                                                               ;;

;> _key_name = key name                                                                   ;;

;> _buffer = source buffer address                                                         ;;

;> _buf_len = buffer size (bytes to write)                                                 ;;

;;------------------------------------------------------------------------------------------------;;

;< eax = -1 (error) / 0                                                                           ;;

;;================================================================================================;;

locals

  f	 IniFile

  f_addr dd ?

endl

	push	ebx esi edi

	xor	eax, eax

	mov	[f.fh], eax

	mov	[f.buf], eax

	invoke	file.open, [_f_name], O_READ + O_WRITE + O_CREATE

	cmp	eax, 32

	jb	.exit_error

	mov	[f.fh], eax

	invoke	mem.alloc, ini.MEM_SIZE

	or	eax, eax

	jz	.exit_error

	mov	[f.buf], eax

	lea	ebx, [f]

	mov	[f_addr], ebx

	stdcall libini._.find_section, ebx, [_sec_name]

	or	eax, eax

	jnz	.create_section

	stdcall libini._.find_key, ebx, [_key_name]

	or	eax, eax

	jnz	.create_key

  .modify_key:

	stdcall libini._.get_value_length, [f_addr]

	sub	eax, [_buf_len]

	stdcall libini._.shift_content, [f_addr], eax

  .modify_key.ex:

	invoke	file.tell, [f.fh]

	sub	eax, [f.cnt]

;       dec     eax

	invoke	file.seek, [f.fh], eax, SEEK_SET

	invoke	file.write, [f.fh], [_buffer], [_buf_len]

	pop	edi esi ebx

	xor	eax, eax

	ret

  .create_key:

	mov	edi, [f.buf]

	add	edi, ini.BLOCK_SIZE

	push	edi

  .create_key.ex:

;       mov     word[edi], 0x0A0D

;       add     edi,2

	mov	esi, [_key_name]

	call	libini._.string_copy

	mov	byte[edi], '='

	inc	edi

	mov	esi, [_buffer]

	mov	ecx, [_buf_len]

	rep	movsb

	mov	word[edi], 0x0A0D

	add	edi, 2

	mov	eax, edi

	pop	edi

	sub	eax, edi

	mov	[_buffer], edi

	mov	[_buf_len], eax

	neg	eax

	stdcall libini._.shift_content, [f_addr], eax

	jmp	.modify_key.ex

  .create_section:

	mov	edi, [f.buf]

	add	edi, ini.BLOCK_SIZE

	push	edi

	mov	esi, [_sec_name]

;       mov     dword[edi], 0x0A0D + ('[' shl 16)

;       add     edi, 3

	mov	byte[edi], '['

	inc	edi

	call	libini._.string_copy

;       mov     byte[edi], ']'

;       inc     edi

	mov	dword[edi], ']' + (0x0A0D shl 8)

	add	edi, 3

	jmp	.create_key.ex

  .exit_error:

	pop	edi esi ebx

	or	eax, -1

	ret

endp

;;================================================================================================;;

proc ini.get_int _f_name, _sec_name, _key_name, _def_val ;////////////////////////////////////////;;

;;------------------------------------------------------------------------------------------------;;

;? Read integer                                                                                   ;;

;;------------------------------------------------------------------------------------------------;;

;> _f_name = ini filename                                                                 ;;

;> _sec_name = section name                                                               ;;

;> _key_name = key name                                                                   ;;

;> _def_val = default value to return if no key, section or file found                     ;;

;;------------------------------------------------------------------------------------------------;;

;< eax = [_def_val] (error) / found key value                                              ;;

;;================================================================================================;;

locals

  f	 IniFile

  f_addr dd ?

endl

	push	ebx esi edi

	xor	eax, eax

	mov	[f.fh], eax

	mov	[f.buf], eax

	invoke	file.open, [_f_name], O_READ

	cmp	eax, 32

	jb	.exit_error

	mov	[f.fh], eax

	invoke	mem.alloc, ini.MEM_SIZE

	or	eax, eax

	jz	.exit_error

	mov	[f.buf], eax

	lea	ebx, [f]

	mov	[f_addr], ebx

	stdcall libini._.find_section, ebx, [_sec_name]

	or	eax, eax

	jnz	.exit_error

	stdcall libini._.find_key, ebx, [_key_name]

	or	eax, eax

	jnz	.exit_error

	stdcall libini._.skip_nonblanks, [f_addr]

	xor	eax, eax

	xor	ebx, ebx

	xor	edx, edx

	stdcall libini._.get_char, [f_addr]

	cmp	al, '-'

	jne	.lp1

	inc	bh

    @@: stdcall libini._.get_char, [f_addr]

  .lp1: cmp	al, '0'

	jb	@f

	cmp	al, '9'

	ja	@f

	inc	bl

	add	eax, -'0'

	imul	edx, 10

	add	edx, eax

	jmp	@b

    @@:

	or	bl, bl

	jz	.exit_error

	or	bh, bh

	jz	@f

	neg	edx

    @@: invoke	file.close, [f.fh]

	invoke	mem.free, [f.buf]

	mov	eax, edx

	pop	edi esi ebx

	ret

  .exit_error:

	invoke	file.close, [f.fh]

	invoke	mem.free, [f.buf]

	mov	eax, [_def_val]

	pop	edi esi ebx

	ret

endp

;;================================================================================================;;

proc ini.set_int _f_name, _sec_name, _key_name, _val ;////////////////////////////////////////////;;

;;------------------------------------------------------------------------------------------------;;

;? Write integer                                                                                  ;;

;;------------------------------------------------------------------------------------------------;;

;> _f_name = ini filename                                                                 ;;

;> _sec_name = section name                                                               ;;

;> _key_name = key name                                                                   ;;

;> _val = value                                                                            ;;

;;------------------------------------------------------------------------------------------------;;

;< eax = -1 (error) / 0                                                                           ;;

;;================================================================================================;;

locals

  buf rb 16

endl

	push	ecx edx edi

	lea	edi, [buf]

	add	edi, 15

	mov	eax, [_val]

	or	eax, eax

	jns	@f

	mov	byte[edi], '-'

	neg	eax

	inc	edi

    @@: mov	ecx, 10

    @@: xor	edx, edx

	idiv	ecx

	add	dl, '0'

	mov	[edi], dl

	dec	edi

	or	eax, eax

	jnz	@b

	lea	eax, [buf]

	add	eax, 15

	sub	eax, edi

	inc	edi

	stdcall ini.set_str, [_f_name], [_sec_name], [_key_name], edi, eax

	pop	edi edx ecx

	ret

endp

;;================================================================================================;;

;;////////////////////////////////////////////////////////////////////////////////////////////////;;

;;================================================================================================;;

;! Imported functions section                                                                     ;;

;;================================================================================================;;

;;////////////////////////////////////////////////////////////////////////////////////////////////;;

;;================================================================================================;;

align 16

@IMPORT:

library \

	libio , 'libio.obj'

import	libio			    , \

	file.size   , 'file.size'   , \

	file.open   , 'file.open'   , \

	file.read   , 'file.read'   , \

	file.write  , 'file.write'  , \

	file.seek   , 'file.seek'   , \

	file.eof?   , 'file.eof?'   , \

	file.seteof , 'file.seteof' , \

	file.tell   , 'file.tell'   , \

	file.close  , 'file.close'

;;================================================================================================;;

;;////////////////////////////////////////////////////////////////////////////////////////////////;;

;;================================================================================================;;

;! Exported functions section                                                                     ;;

;;================================================================================================;;

;;////////////////////////////////////////////////////////////////////////////////////////////////;;

;;================================================================================================;;

align 16

@EXPORT:

export						  \

	libini._.init	  , 'lib_init'		, \

	0x00040005	  , 'version'		, \

	ini.enum_sections , 'ini.enum_sections' , \

	ini.enum_keys	  , 'ini.enum_keys'	, \

	ini.get_str	  , 'ini.get_str'	, \

	ini.get_int	  , 'ini.get_int'	, \

	ini.set_str	  , 'ini.set_str'	, \

	ini.set_int	  , 'ini.set_int'