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tr.s
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* tr - translate characters
*
* Itagaki Fumihiko 14-Aug-93 Create.
* 1.0
*
* Itagaki Fumihiko 08-Sep-93 シフトJIS対応．-S オプション廃止，-1 オプション追加
* Itagaki Fumihiko 08-Sep-93 -N オプション，-B オプション，-C オプションを追加
* 1.1
* Itagaki Fumihiko 08-Jan-94 引数の文字列の解釈の不具合を修正．
* o 引数の文字列の最後の文字が‘\’である場合，その‘\’を無視して
* いたが，文字‘\’として解釈するよう変更．
* o 引数の文字列中に，シフトJIS 1バイト目と見なし得るバイトに続いて
* シフトJIS 2バイト目と見なし得ないバイトがある場合，1バイト目を
* 無視してしまい，2バイト目を 1文字として解釈してしまっていた．
* o 2バイト目が‘\’であるシフトJIS 2バイト文字があると，正しく解釈
* されなかった．
* 1.2
*
* Usage: tr [ -b ] [ -1BCNZ ] [ -cds ] [ -- ] [ 文字列１ [ 文字列２ ] ]
*
.include doscall.h
.include chrcode.h
.xref DecodeHUPAIR
.xref atou
.xref issjis
.xref strlen
.xref strfor1
.xref minmaxul
STACKSIZE equ 2048
OUTBUF_SIZE equ 8192
CTRLD equ $04
CTRLZ equ $1A
FLAG_b equ 0 * -b : bsd
FLAG_c equ 1 * -c : complement
FLAG_d equ 2 * -d : delete
FLAG_s equ 3 * -s : suppress
FLAG_1 equ 4 * -1 : byte
FLAG_B equ 5
FLAG_C equ 6
FLAG_N equ 7
FLAG_Z equ 8
suppress equ 9
pending_cr equ 10
TABLESIZE equ 256+8836+2632
.text
start:
bra.s start1
dc.b '#HUPAIR',0
start1:
lea stack_bottom,a7 * A7 := スタックの底
lea $10(a0),a0 * A0 : PDBアドレス
move.l a7,d0
sub.l a0,d0
move.l d0,-(a7)
move.l a0,-(a7)
DOS _SETBLOCK
addq.l #8,a7
*
* 引数並び格納エリアを確保する
*
lea 1(a2),a0 * A0 := コマンドラインの文字列の先頭アドレス
bsr strlen * D0.L := コマンドラインの文字列の長さ
addq.l #1,d0
bsr malloc
bmi insufficient_memory
movea.l d0,a1 * A1 := 引数並び格納エリアの先頭アドレス
*
* 引数をデコードし，解釈する
*
moveq #0,d6 * D6.W : エラー・コード
bsr DecodeHUPAIR * 引数をデコードする
movea.l a1,a0 * A0 : 引数ポインタ
move.l d0,d7 * D7.L : 引数カウンタ
decode_opt_start:
moveq #0,d5 * D5.L : フラグbits
decode_opt_loop1:
tst.l d7
beq decode_opt_done
cmpi.b #'-',(a0)
bne decode_opt_done
tst.b 1(a0)
beq decode_opt_done
subq.l #1,d7
addq.l #1,a0
move.b (a0)+,d0
cmp.b #'-',d0
bne decode_opt_loop2
tst.b (a0)+
beq decode_opt_done
subq.l #1,a0
decode_opt_loop2:
moveq #FLAG_b,d1
cmp.b #'b',d0
beq set_option
moveq #FLAG_c,d1
cmp.b #'c',d0
beq set_option
moveq #FLAG_d,d1
cmp.b #'d',d0
beq set_option
moveq #FLAG_s,d1
cmp.b #'s',d0
beq set_option
moveq #FLAG_1,d1
cmp.b #'1',d0
beq set_option
cmp.b #'B',d0
beq option_B_found
cmp.b #'C',d0
beq option_C_found
moveq #FLAG_N,d1
cmp.b #'N',d0
beq set_option
moveq #FLAG_Z,d1
cmp.b #'Z',d0
beq set_option
moveq #1,d1
tst.b (a0)
beq bad_option_1
bsr issjis
bne bad_option_1
moveq #2,d1
bad_option_1:
move.l d1,-(a7)
pea -1(a0)
move.w #2,-(a7)
lea msg_illegal_option(pc),a0
bsr werror_myname_and_msg
DOS _WRITE
lea 10(a7),a7
usage:
lea msg_usage(pc),a0
bra werror_exit_1
option_B_found:
bset #FLAG_B,d5
bclr #FLAG_C,d5
bra set_option_done
option_C_found:
bset #FLAG_C,d5
bclr #FLAG_B,d5
bra set_option_done
set_option:
bset d1,d5
set_option_done:
move.b (a0)+,d0
bne decode_opt_loop2
bra decode_opt_loop1
decode_opt_done:
lea str_nul(pc),a1
move.l a1,strdesc1+scanptr
move.l a1,strdesc2+scanptr
subq.l #1,d7
blo args_ok
move.l a0,strdesc1+scanptr
bsr strfor1
subq.l #1,d7
blo args_ok
move.l a0,strdesc2+scanptr
args_ok:
*
* 表を作る
*
move.w #TABLESIZE-1,d0
btst #FLAG_1,d5
beq effective_tablesize_ok
move.w #255,d0
effective_tablesize_ok:
move.w d0,effective_table_size
clr.b strdesc1+stat
clr.b strdesc2+stat
lea table2,a0
bsr clear_table
btst #FLAG_d,d5
bne make_delete_table
btst #FLAG_c,d5
bne make_table_c
lea table1,a0
moveq #0,d0
move.w effective_table_size,d1
initialize_translate_table_loop:
move.w d0,(a0)+
addq.w #1,d0
dbra d1,initialize_translate_table_loop
lea table1,a0
lea table2,a2
make_translate_table_loop:
lea strdesc1,a1
bsr scan1char
bmi make_table1_done
move.w d0,d1
lea strdesc2,a1
bsr scan1char
smi d2
bpl make_translate_table_1
btst #FLAG_b,d5
bne make_translate_table_2
move.w d1,d0
bra make_translate_table_2
make_translate_table_1:
st (a2,d0.w)
make_translate_table_2:
add.w d1,d1
move.w d0,(a0,d1.w)
tst.b strdesc1+stat
bpl make_translate_table_loop
tst.b d2
bne make_table1_done
tst.b strdesc2+stat
bpl make_translate_table_loop
move.l strdesc1+counter,d0
move.l strdesc2+counter,d1
bsr minmaxul
sub.l d0,strdesc1+counter
sub.l d0,strdesc2+counter
bra make_translate_table_loop
****
make_table_c:
bsr make_table1_boolean
lea strdesc2,a1
moveq #0,d2
lea table1,a3
lea table2,a2
move.w effective_table_size,d1
make_table_c_loop:
tst.b (a0)+
bne make_table_c_1
bsr scan1char
bpl make_table_c_2
btst #FLAG_b,d5
bne make_table_c_3
make_table_c_1:
move.w d2,d0
bra make_table_c_3
make_table_c_2:
st (a2,d0.w)
make_table_c_3:
move.w d0,(a3)+
addq.w #1,d2
dbra d1,make_table_c_loop
bra make_table1_done
****
make_delete_table:
bsr make_table1_boolean
btst #FLAG_c,d5
beq make_table1_done
move.w effective_table_size,d0
make_table_cd_loop:
not.b (a0,d0.w)
dbra d0,make_table_cd_loop
make_table1_done:
btst #FLAG_s,d5
beq make_table2_done
lea table2,a0
lea strdesc2,a1
bsr make_table_boolean
make_table2_done:
moveq #1,d0 * 出力は
bsr is_chrdev * キャラクタ・デバイスか？
seq do_buffering
beq alloc_outbuf
btst #FLAG_B,d5
bne outbuf_ok
btst #5,d0 * '0':cooked '1':raw
bne outbuf_ok
bset #FLAG_C,d5 * 改行を変換する
bra outbuf_ok
alloc_outbuf:
* 出力バッファを確保
move.l #OUTBUF_SIZE,d0
move.l d0,d4 * D4 : outbufカウンタ
bsr malloc
bmi insufficient_memory
move.l d0,outbuf_top
move.l d0,a4 * A4 : outbufポインタ
outbuf_ok:
* 入力バッファを確保
move.l #$00ffffff,d0
move.l d0,inpbuf_size
bsr malloc
bpl inpbuf_ok
sub.l #$81000000,d0
move.l d0,inpbuf_size
bsr malloc
bmi insufficient_memory
inpbuf_ok:
move.l d0,inpbuf_top
*
* 標準入力を切り替える
*
clr.w -(a7) * 標準入力を
DOS _DUP * 複製したハンドルから入力し，
addq.l #2,a7
tst.l d0
bmi open_file_failure
move.w d0,stdin
clr.w -(a7)
DOS _CLOSE * 標準入力はクローズする．
addq.l #2,a7 * こうしないと ^C や ^S が効かない
*
* 開始
*
move.w stdin,d2
bsr tr_one
clr.w -(a7) * 標準入力を
move.w stdin,-(a7) * 元に
DOS _DUP2 * 戻す．
DOS _CLOSE * 複製はクローズする．
exit_program:
move.w d6,-(a7)
DOS _EXIT2
open_file_failure:
lea msg_no_file_handle(pc),a0
bra werror_exit_3
****************************************************************
bad_string:
bsr werror_myname
lea msg_bad_string(pc),a0
werror_exit_1:
bsr werror
moveq #1,d6
bra exit_program
****************************************************************
clear_table:
move.w effective_table_size,d0
clear_table_loop:
sf (a0,d0.w)
dbra d0,clear_table_loop
make_table_boolean_return:
rts
****************************************************************
make_table1_boolean:
lea table1+TABLESIZE,a0
bsr clear_table
lea strdesc1,a1
make_table_boolean:
make_table_boolean_loop:
clr.l counter(a1)
bsr scan1char
bmi make_table_boolean_return
st (a0,d0.w)
bra make_table_boolean_loop
****************************************************************
scan1char:
movem.l d1-d2/a0,-(a7)
movea.l scanptr(a1),a0
moveq #0,d0
move.w currletter(a1),d0
tst.b stat(a1)
beq scan1char_not_inc_nor_rep
bmi scan1char_rep
cmp.w endletter(a1),d0
bhs scan1char_break_inc_or_rep
addq.w #1,d0
move.w d0,currletter(a1)
bra scan1char_ok
scan1char_rep:
subq.l #1,counter(a1)
bcc scan1char_ok
scan1char_break_inc_or_rep:
clr.b stat(a1)
scan1char_not_inc_nor_rep:
btst #FLAG_b,d5
bne scan1char_bsd
cmpi.b #'[',(a0)
bne scan1char_normal
addq.l #1,a0
bsr scan1char_1
bmi bad_string
move.w d0,currletter(a1)
move.b (a0)+,d0
cmp.b #'*',d0
beq scan1char_begin_rep
cmp.b #'-',d0
bne bad_string
move.b #1,stat(a1)
bsr scan1char_1
bmi bad_string
cmp.w currletter(a1),d0
blo bad_string
move.w d0,endletter(a1)
bra scan1char_bracket_done
scan1char_begin_rep:
move.b #$ff,stat(a1)
bsr tr_atou
neg.l d0
bmi bad_string * overflow
move.l #9999,counter(a1)
subq.l #1,d1
bcs scan1char_bracket_done
move.l d1,counter(a1)
scan1char_bracket_done:
move.w currletter(a1),d0
cmpi.b #']',(a0)+
bne bad_string
scan1char_ok:
moveq #0,d1
bra scan1char_done
scan1char_normal:
bsr scan1char_1
scan1char_done:
move.l a0,scanptr(a1)
tst.w d1
movem.l (a7)+,d1-d2/a0
rts
scan1char_bsd:
bsr scan1char_1
bmi scan1char_bsd_ok1
move.w d0,currletter(a1)
cmpi.b #'-',(a0)
bne scan1char_bsd_ok1
move.l a2,-(a7)
movea.l a0,a2
addq.l #1,a0
bsr scan1char_1
bmi scan1char_bsd_ok2
cmp.w currletter(a1),d0
blo scan1char_bsd_ok2
move.w d0,endletter(a1)
move.b #1,stat(a1)
movea.l a0,a2
scan1char_bsd_ok2:
movea.l a2,a0
movea.l (a7)+,a2
moveq #0,d1
scan1char_bsd_ok1:
move.w currletter(a1),d0
bra scan1char_done
****************
scan1char_1:
moveq #0,d0
move.b (a0),d0
beq scan1char_1_eos
movem.l d2/a1,-(a7)
btst #FLAG_1,d5
bne scan1char_1_not_sjis
bsr issjis
bne scan1char_1_not_sjis
addq.l #1,a0
move.w d0,d2
move.b (a0),d0
bsr issjis2
exg d0,d2
bne scan1char_1_return
addq.l #1,a0
bra scan1char_1_return_sjis
scan1char_1_not_sjis:
bsr scan1char_2
btst #FLAG_1,d5
bne scan1char_1_return
bsr issjis
bne scan1char_1_return
move.w d0,d2
movea.l a0,a1
bsr scan1char_2
exg a0,a1
exg d0,d2
bmi scan1char_1_return
exg d0,d2
bsr issjis2
exg d0,d2
bne scan1char_1_return
movea.l a1,a0
scan1char_1_return_sjis:
lsl.w #8,d0
or.w d2,d0
bsr sjis_to_icode
scan1char_1_return:
movem.l (a7)+,d2/a1
moveq #0,d1
rts
scan1char_1_eos:
moveq #-1,d1
rts
****************
scan1char_2:
moveq #0,d0
move.b (a0)+,d0
beq scan1char_2_eos
cmp.b #'\',d0
bne scan1char_2_ok
tst.b (a0)
beq scan1char_2_ok
move.b (a0)+,d0
cmp.b #'0',d0
blo scan1char_2_ok
cmp.b #'7',d0
bhi scan1char_2_ok
sub.b #'0',d0
move.l d2,-(a7)
moveq #2,d2
bra scan1char_octal_start
scan1char_octal_continue:
move.b (a0),d1
sub.b #'0',d1
blo scan1char_2_octal_ok
cmp.b #7,d1
bhi scan1char_2_octal_ok
addq.l #1,a0
lsl.b #3,d0
or.b d1,d0
scan1char_octal_start:
dbra d2,scan1char_octal_continue
scan1char_2_octal_ok:
move.l (a7)+,d2
scan1char_2_ok:
moveq #0,d1
rts
scan1char_2_eos:
subq.l #1,a0
moveq #-1,d1
rts
****************************************************************
tr_atou:
cmpi.b #'0',(a0)
bne atou
moveq #0,d0
moveq #0,d1
scan_octal_loop:
move.b (a0),d0
sub.b #'0',d0
blo scan_octal_done
cmp.b #7,d0
bhi scan_octal_done
lsl.l #1,d1
bcs bad_string
lsl.l #1,d1
bcs bad_string
lsl.l #1,d1
bcs bad_string
add.l d0,d1
addq.l #1,a0
bra scan_octal_loop
scan_octal_done:
moveq #0,d0
rts
*****************************************************************
sjis_to_icode:
move.l d1,-(a7)
moveq #0,d1
move.w d0,d1
lsr.w #8,d1
bclr #7,d1
cmp.b #$60,d1
blo sjis_to_icode_1
sub.b #$40,d1
sjis_to_icode_1:
mulu #188,d1
and.w #$ff,d0
sub.b #$40,d0
cmp.b #$3e,d0
bls sjis_to_icode_2
subq.b #1,d0
sjis_to_icode_2:
add.w d1,d0
add.w #$100,d0
move.l (a7)+,d1
rts
*****************************************************************
icode_to_sjis:
move.l d1,-(a7)
move.l d0,d1
moveq #0,d0
sub.w #$100,d1
divu #188,d1
cmp.b #$20,d1
blo icode_to_sjis_1
add.b #$40,d1
icode_to_sjis_1:
bset #7,d1
move.b d1,d0
lsl.w #8,d0
swap d1
cmp.b #$3e,d1
bls icode_to_sjis_2
addq.b #1,d1
icode_to_sjis_2:
add.b #$40,d1
or.b d1,d0
move.l (a7)+,d1
rts
****************************************************************
* tr_one
****************************************************************
tr_one:
btst #FLAG_Z,d5
sne terminate_by_ctrlz
sf terminate_by_ctrld
move.w d2,d0
bsr is_chrdev
beq tr_one_start * -- ブロック・デバイス
btst #5,d0 * '0':cooked '1':raw
bne tr_one_start
st terminate_by_ctrlz
st terminate_by_ctrld
tr_one_start:
clr.b pending_sjis1
bclr #pending_cr,d5
bclr #suppress,d5
sf last_is_cr
tr_one_loop1:
move.l inpbuf_size,-(a7)
move.l inpbuf_top,-(a7)
move.w d2,-(a7)
DOS _READ
lea 10(a7),a7
move.l d0,d3
bmi read_fail
beq tr_one_done
movea.l inpbuf_top,a3
tr_one_loop2:
moveq #0,d0
move.b (a3)+,d0
btst #FLAG_1,d5
bne tr_one_not_sjis
tst.b pending_sjis1
bne tr_one_check_sjis2
bsr issjis
bne tr_one_not_sjis
move.b d0,pending_sjis1
bra tr_one_continue
tr_one_sjis:
ror.w #8,d0
move.b pending_sjis1,d0
rol.w #8,d0
bsr sjis_to_icode
clr.b pending_sjis1
bra tr_one_do_1letter
tr_one_check_sjis2:
bsr issjis2
beq tr_one_sjis
move.w d0,-(a7)
moveq #0,d0
move.b pending_sjis1,d0
bsr tr_1letter
move.w (a7)+,d0
clr.b pending_sjis1
tr_one_not_sjis:
cmp.b #CTRLZ,d0
bne tr_one_not_ctrlz
tst.b terminate_by_ctrlz
bne tr_one_done
bra tr_one_not_eof
tr_one_not_ctrlz:
cmp.b #CTRLD,d0
bne tr_one_not_eof
tst.b terminate_by_ctrld
bne tr_one_done
tr_one_not_eof:
btst #FLAG_N,d5
beq tr_one_do_1letter
cmp.b #LF,d0
beq tr_one_lf
cmp.b #CR,d0
bne tr_one_do_1letter
bset #pending_cr,d5
bra tr_one_continue
tr_one_lf:
bclr #pending_cr,d5
tr_one_do_1letter:
bsr tr_1letter
tr_one_continue:
subq.l #1,d3
bne tr_one_loop2
bra tr_one_loop1
tr_one_done:
bsr flush_cr
moveq #0,d0
move.b pending_sjis1,d0
beq flush_outbuf
bsr putc
flush_outbuf:
move.l d0,-(a7)
tst.b do_buffering
beq flush_return
move.l #OUTBUF_SIZE,d0
sub.l d4,d0
beq flush_return
move.l d0,-(a7)
move.l outbuf_top,-(a7)
move.w #1,-(a7)
DOS _WRITE
lea 10(a7),a7
tst.l d0
bmi write_fail
cmp.l -4(a7),d0
blo write_fail
movea.l outbuf_top,a4
move.l #OUTBUF_SIZE,d4
flush_return:
move.l (a7)+,d0
flush_cr_return:
tr_1letter_done:
rts
*****************************************************************
flush_cr:
btst #pending_cr,d5
beq flush_cr_return
move.l d0,-(a7)
moveq #CR,d0
bsr tr_1letter_1
move.l (a7)+,d0
bclr #pending_cr,d5
rts
*****************************************************************
tr_1letter:
bsr flush_cr
tr_1letter_1:
btst #FLAG_d,d5
beq tr_1letter_tr
lea table1+TABLESIZE,a5
tst.b (a5,d0.w)
beq tr_1letter_ok
bra tr_1letter_done
tr_1letter_tr:
move.w d0,d1
add.w d1,d1
lea table1,a5
move.w (a5,d1.w),d0
tr_1letter_ok:
btst #suppress,d5
beq tr_1letter_put
cmp.w suppress_letter,d0
beq tr_1letter_done
bclr #suppress,d5
tr_1letter_put:
btst #FLAG_s,d5
beq tr_1letter_put_1
lea table2,a0
tst.b (a0,d0.w)
beq tr_1letter_put_1
bset #suppress,d5
move.w d0,suppress_letter
tr_1letter_put_1:
cmp.w #$100,d0
blo tr_1letter_put_2
sf last_is_cr
bsr icode_to_sjis
move.w d0,-(a7)
lsr.w #8,d0
bsr putc
move.w (a7)+,d0
bra putc
tr_1letter_put_2:
btst #FLAG_C,d5
beq putc
cmp.b #LF,d0
bne tr_1letter_put_3
not.b last_is_cr
beq putc
sf last_is_cr
moveq #CR,d0
bsr putc
moveq #LF,d0
bra putc
tr_1letter_put_3:
cmp.b #CR,d0
seq last_is_cr
putc:
tst.b do_buffering
bne putc_buffering
move.b d0,one_char_buffer
move.l #1,-(a7)
pea one_char_buffer
move.w #1,-(a7)
DOS _WRITE
lea 10(a7),a7
cmp.l #1,d0
bne write_fail
bra putc_done
putc_buffering:
tst.l d4
bne putc_buffering_1
bsr flush_outbuf
putc_buffering_1:
move.b d0,(a4)+
subq.l #1,d4
putc_done:
rts
*****************************************************************
insufficient_memory:
lea msg_no_memory(pc),a0
bra werror_exit_3
*****************************************************************
read_fail:
lea msg_read_fail(pc),a0
bra werror_exit_3
*****************************************************************
write_fail:
lea msg_write_fail(pc),a0
werror_exit_3:
bsr werror_myname_and_msg
moveq #3,d6
bra exit_program
*****************************************************************
werror_myname:
move.l a0,-(a7)
lea msg_myname(pc),a0
bsr werror
movea.l (a7)+,a0
rts
*****************************************************************
werror_myname_and_msg:
bsr werror_myname
werror:
movem.l d0/a1,-(a7)
movea.l a0,a1
werror_1:
tst.b (a1)+
bne werror_1
subq.l #1,a1
suba.l a0,a1
move.l a1,-(a7)
move.l a0,-(a7)
move.w #2,-(a7)
DOS _WRITE
lea 10(a7),a7
movem.l (a7)+,d0/a1
rts
*****************************************************************
issjis2:
cmp.b #$40,d0
blo return * ZF=0
cmp.b #$7f,d0
beq false
cmp.b #$fc,d0
bhi return * ZF=0
true:
cmp.b d0,d0 * ZF=1
rts
false:
tst.b d0
return:
rts
*****************************************************************
is_chrdev:
move.w d0,-(a7)
clr.w -(a7)
DOS _IOCTRL
addq.l #4,a7
tst.l d0
bpl is_chrdev_1
moveq #0,d0
is_chrdev_1:
btst #7,d0
rts
*****************************************************************
malloc:
move.l d0,-(a7)
DOS _MALLOC