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authorGravatar Mark Zbikowski2024-04-25 21:24:10 +0100
committerGravatar Microsoft Open Source2024-04-25 22:32:27 +0000
commit2d04cacc5322951f187bb17e017c12920ac8ebe2 (patch)
tree80ee017efa878dfd5344b44249e6a241f2a7f6e2 /v4.0/src/CMD/EDLIN
parentMerge pull request #430 from jpbaltazar/typoptbr (diff)
downloadms-dos-main.tar.gz
ms-dos-main.tar.xz
ms-dos-main.zip
MZ is back!HEADmain
Diffstat (limited to 'v4.0/src/CMD/EDLIN')
-rw-r--r--v4.0/src/CMD/EDLIN/EDLCMD1.ASM664
-rw-r--r--v4.0/src/CMD/EDLIN/EDLCMD2.ASM1203
-rw-r--r--v4.0/src/CMD/EDLIN/EDLEQU.ASM156
-rw-r--r--v4.0/src/CMD/EDLIN/EDLIN.ASM1843
-rw-r--r--v4.0/src/CMD/EDLIN/EDLIN.LNK7
-rw-r--r--v4.0/src/CMD/EDLIN/EDLIN.SKL75
-rw-r--r--v4.0/src/CMD/EDLIN/EDLMES.ASM665
-rw-r--r--v4.0/src/CMD/EDLIN/EDLPARSE.ASM281
-rw-r--r--v4.0/src/CMD/EDLIN/EDLSTDSW.INC32
-rw-r--r--v4.0/src/CMD/EDLIN/MAKEFILE56
10 files changed, 4982 insertions, 0 deletions
diff --git a/v4.0/src/CMD/EDLIN/EDLCMD1.ASM b/v4.0/src/CMD/EDLIN/EDLCMD1.ASM
new file mode 100644
index 0000000..ea304f4
--- /dev/null
+++ b/v4.0/src/CMD/EDLIN/EDLCMD1.ASM
@@ -0,0 +1,664 @@
1 PAGE 60,132;
2 TITLE EDLCMD1.ASM
3
4;======================= START OF SPECIFICATIONS =========================
5;
6; MODULE NAME: EDLCMD1.SAL
7;
8; DESCRIPTIVE NAME: EDLIN ROUTINES
9;
10; FUNCTION: THIS MODULE PROVIDES ROUTINES NEEDED FOR EDLIN'S EXECUTION.
11;
12; ENTRY POINT: ANY CALLED ROUTINE
13;
14; EXIT NORMAL: NA
15;
16; EXIT ERROR : NA
17;
18; INTERNAL REFERENCES:
19;
20; EXTERNAL REFERENCES:
21;
22; ROUTINE: EDLCMD2 - ROUTINES MAY BE CALLED FROM EDLCMD2
23; EDLMES - ROUTINES MAY BE CALLED FROM EDLMES
24;
25; NOTES: THIS MODULE IS TO BE PREPPED BY SALUT WITH THE "PR" OPTIONS.
26; LINK EDLIN+EDLCMD1+EDLCMD2+EDLMES+EDLPARSE
27;
28; REVISION HISTORY:
29;
30; AN000 VERSION DOS 4.00 - REVISIONS MADE RELATE TO THE FOLLOWING:
31;
32; - IMPLEMENT SYSPARSE
33; - IMPLEMENT MESSAGE RETRIEVER
34; - IMPLEMENT DBCS ENABLING
35; - ENHANCED VIDEO SUPPORT
36; - EXTENDED OPENS
37; - SCROLLING ERROR
38;
39; COPYRIGHT: "MS DOS EDLIN UTILITY"
40; "VERSION 4.00 (C) COPYRIGHT 1988 Microsoft"
41;
42;======================= END OF SPECIFICATIONS ===========================
43
44include edlequ.asm
45
46SUBTTL Contants and Data areas
47PAGE
48
49
50CODE SEGMENT PUBLIC
51CODE ENDS
52
53CONST SEGMENT PUBLIC WORD
54CONST ENDS
55
56cstack segment stack
57cstack ends
58
59DATA SEGMENT PUBLIC WORD
60DATA ENDS
61
62DG GROUP CODE,CONST,cstack,DATA
63
64CONST SEGMENT PUBLIC WORD
65 EXTRN DSKFUL_ptr:word,READ_ERR_PTR:word
66 EXTRN NOSUCH_ptr:word,TOOLNG_ptr:word,EOF_ptr:word
67 extrn txt1:byte,txt2:byte
68CONST ENDS
69
70cstack segment stack
71cstack ends
72
73DATA SEGMENT PUBLIC WORD
74 extrn ParamCt:WORD
75 extrn current:word,pointer:word,start:word,endtxt:word
76 extrn wrt_handle:word,editbuf:byte,path_name:byte,fname_len:word
77 extrn arg_buf:byte,arg_buf_ptr:word
78 extrn olddat:byte,oldlen:word,newlen:word,param1:word,param2:word
79 extrn srchflg:byte,srchmod:byte,comline:word,lstfnd:word,numpos:word
80 extrn lstnum:word,srchcnt:word,amnt_req:word,delflg:byte,lastlin:word
81 extrn three4th:word,one4th:word,last:word,rd_handle:word,ending:byte
82 extrn haveof:byte
83 extrn Disp_Len:Byte
84
85DATA ENDS
86
87CODE SEGMENT PUBLIC
88ASSUME CS:DG,DS:DG,SS:CStack,ES:DG
89
90 extrn findlin:near,shownum:near,loadbuf:near
91 extrn delbak:near,unquote:near,lf:near
92 extrn dispone:near,display:near,query:near
93 extrn quit:near,scanln:near,scaneof:near
94 extrn fndfirst:near,fndnext:near,replace:near,memerr:near
95 extrn std_printf:near,chkrange:near,comerr:near
96
97 public xerror,bad_read,append,nocom,pager,list
98 public delete,replac_from_curr,search_from_curr,ewrite,wrt
99
100NOMOREJ:JMP NOMORE
101
102APPEND:
103 CMP ParamCt,1
104 JZ AppendOK
105 JMP ComErr
106AppendOK:
107 TEST BYTE PTR [HAVEOF],-1
108 JNZ NOMOREJ
109 MOV DX,[ENDTXT]
110 CMP [PARAM1],0 ;See if parameter is missing
111 JNZ PARMAPP
112 CMP DX,[THREE4TH] ;See if already 3/4ths full
113 jb parmapp
114 return ;If so, then done already
115PARMAPP:
116 MOV DI,DX
117 MOV CX,[LAST]
118 SUB CX,DX ;Amount of memory available
119 jnz sj53
120 jmp memerr
121sj53:
122 MOV DX,[ENDTXT]
123 MOV BX,[RD_HANDLE]
124 mov [amnt_req],cx ;Save number of chars requested
125 MOV AH,READ
126 INT 21H ;Fill memory with file data
127 CMP CX,AX ;Did we read less than we asked for?
128 JZ SJ55
129; Make sure this is an end-of-file by trying to read more
130 PUSH AX ;Save old byte count
131 ADD DX,AX ;Point to next open space in buffer
132 MOV CX,1 ;Just one character past EOF
133 MOV AH,READ
134 INT 21H
135 CMP AX,0 ;Is it EOF?
136 POP AX
137 JNZ SJ54 ;No -- we have one more character
138 MOV BYTE PTR [HAVEOF],1 ;Yes - set old style system call flag
139 JMP SHORT SJ55
140SJ54:
141 INC AX ;Include one more char in byte count
142sj55:
143 MOV CX,AX ;Want byte count in CX
144 PUSH CX ;Save actual byte count
145 CALL SCANEOF
146 JNZ NOTEND
147 MOV BYTE PTR [HAVEOF],1 ;Set flag if 1AH found in file
148NOTEND:
149 XOR DX,DX
150 MOV BX,[PARAM1]
151 OR BX,BX
152 JNZ COUNTLN
153 MOV AX,DI
154 ADD AX,CX ;First byte after loaded text
155 CMP AX,[THREE4TH] ;See if we made 3/4 full
156 JBE COUNTLN
157 MOV DI,[THREE4TH]
158 MOV CX,AX
159 SUB CX,DI ;Length remaining over 3/4
160 MOV BX,1 ;Look for one more line
161COUNTLN:
162 CALL SCANLN ;Look for BX lines
163 CMP [DI-1],AL ;Check for full line
164 JZ FULLN
165 CMP HavEof,1
166 JNZ DoBackScan
167;
168; We have an incomplete line in the buffer at end of file. Fix it up to be
169; pretty.
170;
171 MOV BYTE PTR [DI],13 ; CR
172 MOV BYTE PTR [DI+1],10 ; LF
173 ADD DI,2 ; length is 2 greater
174 POP CX
175 ADD CX,2
176 PUSH CX
177 JMP SHORT FULLN
178
179DoBackScan:
180 DEC DI
181 MOV CX,[LAST]
182 STD
183 REPNE SCASB ;Scan backwards for last line
184 CLD
185 INC DI
186 INC DI
187 DEC DX
188FULLN:
189 POP CX ;Actual amount read
190 MOV WORD PTR [DI],1AH ;Place EOF after last line
191 SUB CX,DI
192 XCHG DI,[ENDTXT]
193 ADD DI,CX ;Amount of file read but not used
194; Must seek for old partial line
195 OR DI,DI
196 JZ FULLN1
197 PUSH DX
198 PUSH BX
199 MOV BX,[RD_HANDLE]
200 MOV DX,DI
201 NEG DX
202 MOV CX,-1
203 MOV AL,1
204 MOV AH,LSEEK
205 INT 21H
206 POP BX
207 POP DX
208 JC BAD_READ
209FULLN1:
210 CMP BX,DX
211 JNZ EOFCHK
212 MOV BYTE PTR [HAVEOF],0
213 return
214NOMORE:
215 MOV DX,OFFSET DG:EOF_ptr
216 call std_printf
217ret3: return
218
219BAD_READ:
220 MOV DX,OFFSET DG:READ_ERR_ptr
221 MOV DI,offset dg:path_name
222 ADD DI,[FNAME_LEN]
223 MOV AL,0
224 STOSB
225 JMP XERROR
226
227EOFCHK:
228 TEST BYTE PTR [HAVEOF],-1
229 JNZ NOMORE
230 TEST BYTE PTR [ENDING],-1
231 retnz ;Suppress memory error during End
232 JMP MEMERR
233
234EWRITE:
235 CMP ParamCt,1
236 JBE EWriteOK
237 JMP ComErr
238EWriteOK:
239 MOV BX,[PARAM1]
240 OR BX,BX
241 JNZ WRT
242 MOV CX,[ONE4TH]
243 MOV DI,[ENDTXT]
244 SUB DI,CX ;Write everything in front of here
245 JBE RET3
246 CMP DI,OFFSET DG:START ;See if there's anything to write
247 JBE RET3
248 XOR DX,DX
249 MOV BX,1 ;Look for one more line
250 CALL SCANLN
251 JMP SHORT WRTADD
252WRT:
253 INC BX
254 CALL FINDLIN
255WRTADD:
256 CMP BYTE PTR [DELFLG],0
257 JNZ WRTADD1
258 PUSH DI
259 CALL DELBAK ;Want to delete the .BAK file
260 ;as soon as the first write occurs
261 POP DI
262WRTADD1:
263 MOV CX,DI
264 MOV DX,OFFSET DG:START
265 SUB CX,DX ;Amount to write
266 retz
267 MOV BX,[WRT_HANDLE]
268 MOV AH,WRITE
269 INT 21H
270 JC WRTERR
271 CMP AX,CX ; MZ correct full disk detection
272 JNZ WRTERR ; MZ correct full disk detection
273 MOV SI,DI
274 MOV DI,OFFSET DG:START
275 MOV [POINTER],DI
276 MOV CX,[ENDTXT]
277 SUB CX,SI
278 INC CX ;Amount of text remaining
279 CLD
280 REP MOVSB
281 DEC DI ;Point to EOF
282 MOV [ENDTXT],DI
283 MOV [CURRENT],1
284 return
285
286WRTERR:
287 MOV BX,[WRT_HANDLE]
288 MOV AH,CLOSE
289 INT 21H
290 MOV DX,OFFSET DG:DSKFUL_ptr
291xERROR:
292 push cs
293 pop ds
294 call std_printf
295 mov al,0ffh
296 mov ah,exit
297 int 21h
298
299NOTFNDJ:JMP NOTFND
300
301replac_from_curr:
302 CMP ParamCt,2
303 JBE Replace1
304 JMP ComErr
305Replace1:
306 mov byte ptr [srchmod],1 ;search from curr+1 line
307 jmp short sj6
308
309REPLAC:
310 mov byte ptr [srchmod],0 ;search from beg of buffer
311sj6:
312 MOV BYTE PTR [SRCHFLG],0
313 CALL FNDFIRST
314 JNZ NOTFNDJ
315REPLP:
316 MOV SI,[NUMPOS]
317 CALL LOADBUF ;Count length of line
318 SUB DX,[OLDLEN]
319 MOV CX,[NEWLEN]
320 ADD DX,CX ;Length of new line
321 CMP DX,254
322 jbe len_ok
323 Jmp TOOLONG
324len_ok:
325 MOV BX,[LSTNUM]
326 PUSH DX
327 CALL SHOWNUM
328 POP DX
329 MOV CX,[LSTFND]
330 MOV SI,[NUMPOS]
331 SUB CX,SI ;Get no. of char on line before change
332 DEC CX
333 mov di,offset dg:arg_buf ;Initialize the output string buffer
334 CALL OUTCNT ;Output first part of line
335 PUSH SI
336 MOV SI,1+ OFFSET DG:TXT2
337 MOV CX,[NEWLEN]
338 CALL OUTCNT ;Output change
339 POP SI
340 ADD SI,[OLDLEN] ;Skip over old stuff in line
341 MOV CX,DX ;DX=no. of char left in line
342 ADD CX,2 ;Include CR/LF
343 CALL OUTCNT ;Output last part of line
344 xor al,al
345 stosb
346 mov dx,offset dg:arg_buf_ptr
347 call std_printf
348 CALL QUERY ;Check if change OK
349 JNZ REPNXT
350 CALL PUTCURS
351 MOV DI,[LSTFND]
352 DEC DI
353 MOV SI,1+ OFFSET DG:TXT2
354 MOV DX,[OLDLEN]
355 MOV CX,[NEWLEN]
356 DEC CX
357 ADD [LSTFND],CX ;Bump pointer beyond new text
358 INC CX
359 DEC DX
360 SUB [SRCHCNT],DX ;Old text will not be searched
361 JAE SOMELEFT
362 MOV [SRCHCNT],0
363SOMELEFT:
364 INC DX
365 CALL REPLACE
366REPNXT:
367 CALL FNDNEXT
368 retnz
369 JMP REPLP
370
371OUTCNT:
372 JCXZ RET8
373OUTLP:
374 LODSB
375 stosb
376 DEC DX
377 LOOP OUTLP
378RET8: return
379
380TOOLONG:
381 MOV DX,OFFSET DG:TOOLNG_ptr
382 JMP SHORT PERR
383
384search_from_curr:
385 CMP ParamCt,2
386 JBE Search1
387 JMP ComErr
388Search1:
389 mov byte ptr [srchmod],1 ;search from curr+1 line
390 jmp short sj7
391
392SEARCH:
393 mov byte ptr [srchmod],0 ;search from beg of buffer
394sj7:
395 MOV BYTE PTR [SRCHFLG],1
396 CALL FNDFIRST
397 JNZ NOTFND
398SRCH:
399 MOV BX,[LSTNUM]
400 MOV SI,[NUMPOS]
401 CALL DISPONE
402 MOV DI,[LSTFND]
403 MOV CX,[SRCHCNT]
404 MOV AL,10
405 CLD
406 REPNE SCASB
407 JNZ NOTFND
408 MOV [LSTFND],DI
409 MOV [NUMPOS],DI
410 MOV [SRCHCNT],CX
411 INC [LSTNUM]
412 CALL QUERY
413 JZ PUTCURS1
414 CALL FNDNEXT
415 JZ SRCH
416NOTFND:
417 MOV DX,OFFSET DG:NOSUCH_ptr
418PERR:
419 call std_printf
420 return
421
422;
423; Replace enters here with LSTNUM pointing to the correct line.
424;
425PUTCURS:
426 MOV BX,[LSTNUM]
427 jmp short putcursor
428;
429; Search enters here with LSTNUM pointing AFTER the correct line
430;
431putcurs1:
432 MOV BX,[LSTNUM]
433 DEC BX ;Current <= Last matched line
434
435putcursor:
436 CALL FINDLIN
437 MOV [CURRENT],DX
438 MOV [POINTER],DI
439 return
440
441;
442; n,mD deletes a range of lines. Allowable values for n are:
443; 1 ... LAST. Allowable values for m are:
444; 1 ... LAST.
445; nD deletes a single line
446; D deletes the current line
447;
448DELETE:
449 CMP ParamCt,2 ; at most two parameters specified.
450 JA ComErrJ
451 MOV BX,Param1
452 OR BX,BX ; default first arg?
453 JNZ DelParm2
454 MOV BX,Current ; use current as default
455 MOV Param1,BX
456DelParm2:
457 MOV BX,Param2 ; did we default second arg?
458 OR BX,BX
459 JNZ DelCheck ; no, use it.
460 MOV BX,Param1 ; use param1 as default
461 MOV Param2,BX
462DelCheck:
463 MOV BX,Param1
464 CALL ChkRange ; returns by itself if bad range
465;
466; BX is first line of range to be deleted. Param2 is last line in range to
467; be deleted. Get pointer to beginning of block. Save location
468;
469 CALL FINDLIN ; Grab line
470 retnz ; If not found => return
471 PUSH BX
472 PUSH DI
473;
474; Get pointer past end of block (Param2+1).
475;
476 MOV BX,Param2
477 INC BX
478 CALL FINDLIN
479;
480; Set up pointers. Compute number of chars to move.
481;
482 MOV SI,DI ; move from second line+1
483 POP DI ; restore destination (first line)
484 POP Current ; Current line is first param
485 MOV Pointer,DI ; internal current line
486 MOV CX,EndTxt ; compute count
487 SUB CX,SI
488 JB ComErrJ ; should never occur: ChkRange
489 INC CX ; remember ^Z at end
490 CLD
491 REP MOVSB ; move data
492 DEC DI
493 MOV EndTxt,DI ; reset end pointer
494 return
495
496COMERRJ:
497 JMP COMERR
498
499PAGER:
500 CMP ParamCt,2
501 JA ComErrJ
502 xor bx,bx ;get last line in the buffer
503 call findlin
504 mov [lastlin],dx
505
506 mov bx,[param1]
507 or bx,bx ;was it specified?
508 jnz frstok ;yes, use it
509 mov bx,[current]
510 cmp bx,1 ;if current line =1 start from there
511 je frstok
512 inc bx ;start from current+1 line
513frstok:
514 cmp bx,[lastlin] ;check that we are in the buffer
515 jbe frstok1
516 return ;if not just quit
517frstok1:
518 mov dx,[param2]
519 or dx,dx ;was param2 specified?
520 jnz scndok ;yes,....
521 mov dx,bx ;no, take the end line to be the
522 ; start line + length of active display
523
524;=========================================================================
525; This modification is to provide support for screens larger than
526; 24 lines.
527;
528; Date : 6/10/87
529;=========================================================================
530
531 push ax ;an000;save affected registers
532
533 mov ah,00h ;an000;zero out high byte
534 mov al,dg:disp_len ;an000;set ax to active display length
535 sub ax,2 ;an000;adjust for length of screen & current
536 ; line
537 add dx,ax ;an000;this gives us the last line to be
538 ; printed
539 pop ax ;an000;restore affected registers
540
541;=========================================================================
542
543scndok:
544 inc dx
545 cmp dx,[lastlin] ;check that we are in the buffer
546 jbe infile
547 mov dx,[lastlin] ;we are not, take the last line as end
548infile:
549 cmp dx,bx ;is param1 < param2 ?
550 retz
551 ja sj33
552 jmp comerr ;yes, no backwards listing, print error
553sj33:
554 push dx ;save the end line
555 push bx ;save start line
556 mov bx,dx ;set the current line
557 dec bx
558 call findlin
559 mov [pointer],di
560 mov [current],dx
561 pop bx ;restore start line
562 call findlin ;get pointer to start line
563 mov si,di ;save pointer
564 pop di ;get end line
565 sub di,bx ;number of lines
566 jmp short display_lines
567
568
569LIST:
570 CMP ParamCt,2
571 JBE ListOK
572 JMP ComERR
573ListOK:
574 MOV BX,[PARAM1]
575 OR BX,BX
576 JNZ CHKP2
577 MOV BX,[CURRENT]
578 SUB BX,11
579 JA CHKP2
580 MOV BX,1
581CHKP2:
582 CALL FINDLIN
583 retnz
584 MOV SI,DI
585 MOV DI,[PARAM2]
586 INC DI
587 SUB DI,BX
588 JA DISPLAY_lines
589
590;=========================================================================
591; This modification is to provide support for screens larger than
592; 24 lines.
593;
594; Date : 6/10/87
595;=========================================================================
596
597 push ax ;an000;save affected registers
598
599 mov ah,00h ;an000;zero out high byte
600 mov al,dg:disp_len ;an000;set ax to active display length dec ax ;an000;allow room at bottom for
601 ; messages
602 mov di,ax ;an000;number of lines to print an
603 ; entire screen less 1.
604 pop ax ;an000;restore affected registers
605
606;=========================================================================
607
608display_lines:
609 call DISPLAY
610 return
611
612Break <NOCOM - edit a single line>
613
614;
615; NOCOM is called when there is a single line being edited. This occurs when
616; the command letter is CR or is ;.
617;
618NOCOM:
619 CMP ParamCt,2
620 JB NoComOK
621 JMP ComErr
622NoComOK:
623 DEC [COMLINE]
624 MOV BX,[PARAM1]
625 OR BX,BX
626 JNZ HAVLIN
627 MOV BX,[CURRENT]
628 INC BX ;Default is current line plus one
629 CALL CHKRANGE
630HAVLIN:
631 CALL FINDLIN
632 MOV SI,DI
633 MOV [CURRENT],DX
634 MOV [POINTER],SI
635 jz sj12
636ret12: return
637sj12:
638 CMP SI,[ENDTXT]
639 retz
640 CALL LOADBUF
641 MOV [OLDLEN],DX
642 MOV SI,[POINTER]
643 CALL DISPONE
644 CALL SHOWNUM
645 MOV AH,STD_CON_STRING_INPUT ;Get input buffer
646 MOV DX,OFFSET DG:EDITBUF
647 INT 21H
648 CALL lf
649 MOV CL,[EDITBUF+1]
650 MOV CH,0
651 JCXZ RET12
652 MOV DX,[OLDLEN]
653 MOV SI,2 + OFFSET DG:EDITBUF
654;-----------------------------------------------------------------------
655 call unquote ;scan for quote chars if any
656;-----------------------------------------------------------------------
657 mov cl,[EditBuf+1] ;an000; dms;get new line length
658 mov ch,0 ;an000; dms;clear high byte
659 MOV DI,[POINTER]
660 JMP Replace ; MZ 11/30
661
662CODE ENDS
663 END
664 \ No newline at end of file
diff --git a/v4.0/src/CMD/EDLIN/EDLCMD2.ASM b/v4.0/src/CMD/EDLIN/EDLCMD2.ASM
new file mode 100644
index 0000000..decc228
--- /dev/null
+++ b/v4.0/src/CMD/EDLIN/EDLCMD2.ASM
@@ -0,0 +1,1203 @@
1 PAGE 60,132
2TITLE Edlcmd2 - PART2 procedures called from EDLIN
3
4
5;======================= START OF SPECIFICATIONS =========================
6;
7; MODULE NAME: EDLCMD2.SAL
8;
9; DESCRIPTIVE NAME: EDLIN ROUTINES
10;
11; FUNCTION: THIS MODULE PROVIDES ROUTINES NEEDED FOR EDLIN'S EXECUTION.
12;
13; ENTRY POINT: ANY CALLED ROUTINE
14;
15; EXIT NORMAL: NA
16;
17; EXIT ERROR : NA
18;
19; INTERNAL REFERENCES:
20;
21; EXTERNAL REFERENCES:
22;
23; ROUTINE: EDLCMD1 - ROUTINES MAY BE CALLED FROM EDLCMD1
24; EDLMES - ROUTINES MAY BE CALLED FROM EDLMES
25;
26; NOTES: THIS MODULE IS TO BE PREPPED BY SALUT WITH THE "PR" OPTIONS.
27; LINK EDLIN+EDLCMD1+EDLCMD2+EDLMES+EDLPARSE
28;
29;
30; REVISION HISTORY:
31;
32; AN000 VERSION DOS 4.00 - REVISIONS MADE RELATE TO THE FOLLOWING:
33;
34; - IMPLEMENT SYSPARSE
35; - IMPLEMENT MESSAGE RETRIEVER
36; - IMPLEMENT DBCS ENABLING
37; - ENHANCED VIDEO SUPPORT
38; - EXTENDED OPENS
39; - SCROLLING ERROR
40;
41; COPYRIGHT: "MS DOS EDLIN UTILITY"
42; "VERSION 4.00 (C) COPYRIGHT 1988 Microsoft"
43;
44;======================= END OF SPECIFICATIONS ===========================
45
46include edlequ.asm
47
48CODE SEGMENT PUBLIC
49CODE ENDS
50
51CONST SEGMENT PUBLIC WORD
52CONST ENDS
53
54cstack segment stack
55cstack ends
56
57DATA SEGMENT PUBLIC WORD
58DATA ENDS
59
60
61DG GROUP CODE,CONST,cstack,DATA
62
63CONST SEGMENT PUBLIC WORD
64 extrn crlf_ptr:byte,lf_ptr:byte,qmes_ptr:byte,ask_ptr:byte
65 extrn bak:byte,$$$file:byte,delflg:byte,loadmod:byte,txt1:byte
66 extrn txt2:byte,memful_ptr:word,YES_BYTE:BYTE
67
68 extrn Del_Bak_Ptr:byte ;an000;dms;
69 extrn cont_ptr:byte ;an000;dms:6/10/87
70
71CONST ENDS
72
73DATA SEGMENT PUBLIC WORD
74 extrn ParamCt:WORD
75 extrn current:word,pointer:word,start:word,endtxt:word
76 extrn wrt_handle:word,editbuf:byte,ext_ptr:word,qflg:byte
77 extrn temp_path:byte,line_num:word,line_flag:byte
78 extrn line_num_buf_ptr:byte,arg_buf:byte,arg_buf_ptr:word
79 extrn olddat:byte,oldlen:word,newlen:word,param1:word,param2:word
80 extrn srchflg:byte,srchmod:byte,comline:word,lstfnd:word,numpos:word
81 extrn lstnum:word,last:word,srchcnt:word,amnt_req:word
82
83 extrn lc_adj:byte ;an000;dms:6/10/87
84 extrn continue:byte ;an000;dms:6/10/87
85 extrn pg_count:byte ;an000;dms:6/10/87
86 extrn Disp_Len:byte ;an000;dms;
87 extrn Disp_Width:byte ;an000;dms;
88 extrn lc_flag:byte ;an000;dms:6/10/87
89
90 if kanji
91 extrn lbtbl:dword
92 endif
93
94DATA ENDS
95
96CODE SEGMENT PUBLIC
97
98ASSUME CS:DG,DS:DG,SS:CStack,ES:DG
99
100 public findlin,shownum,loadbuf,crlf,lf,abortcom,unquote
101 public kill_bl,make_caps,display,dispone,make_cntrl
102 public query,quit,scanln,delbak,scaneof,memerr
103 public fndfirst,fndnext,replace
104 if kanji
105 public testkanj
106 endif
107 extrn std_printf:near,command:near,chkrange:near,ComErr:NEAR
108 extrn Xerror:near
109
110
111FINDLIN:
112
113; Inputs
114; BX = Line number to be located in buffer (0 means last line+1)
115; Outputs:
116; DX = Actual line found
117; DI = Pointer to start of line DX
118; Zero set if BX = DX (if specified line found)
119; AL,CX destroyed. No other registers affected.
120
121 MOV DX,[CURRENT]
122 MOV DI,[POINTER]
123 CMP BX,DX ; fast find. Current = requested
124 retz
125 JA FINDIT ; start scanning at current?
126 OR BX,BX ; special case of EOF?
127 JZ FINDIT ; yes
128 MOV DX,1 ; set up for scan at beginning
129 MOV DI,OFFSET DG:START
130 CMP BX,DX ; at beginning?
131 retz
132FINDIT:
133 MOV CX,[ENDTXT] ; count of bytes in buffer
134 SUB CX,DI ; for scan
135SCANLN:
136 MOV AL,10 ; LF is what we look for.
137 OR AL,AL ; Clear zero flag for JCXZ
138FINLIN:
139 JCXZ RET4 ; at end? Yes, no skip.
140 REPNE SCASB ; find EOL
141 INC DX ; increment count
142 CMP BX,DX ; find correct line?
143 JNZ FINLIN ; no, try again.
144RET4: return
145
146; Inputs:
147; BX = Line number to be displayed
148; Function:
149; Displays line number on terminal in 8-character
150; format, suppressing leading zeros.
151; AX, CX, DX destroyed. No other registers affected.
152
153SHOWNUM:
154 mov dx,offset dg:line_num_buf_ptr
155 mov line_num,bx
156 MOV line_flag,"*"
157 CMP BX,[CURRENT]
158 JZ STARLIN
159 MOV line_flag," "
160STARLIN:
161 call std_printf
162ret5: return
163
164
165DISPONE:
166 MOV DI,1
167
168DISPLAY:
169
170; Inputs:
171; BX = Line number
172; SI = Pointer to text buffer
173; DI = No. of lines
174; Function:
175; Ouputs specified no. of line to terminal, each
176; with leading line number.
177; Outputs:
178; BX = Last line output.
179; All registers destroyed.
180
181 MOV CX,[ENDTXT]
182 SUB CX,SI
183 retz ; no lines to display
184;=========================================================================
185; Initialize screen size and line counts for use by display.
186;
187; Date : 6/10/87
188;=========================================================================
189
190 push ax ;an000;save affected regs
191
192 mov al,dg:disp_len ;an000;length of video display
193 mov pg_count,al ;an000;init. screen size ctr.
194
195 pop ax ;an000;restore affected regs
196
197;=========================================================================
198
199 mov dx,di ;number of lines to print
200;
201; CX is the number of bytes in the buffer
202; dx is the number of lines to be output
203;
204DISPLN:
205 SaveReg <CX,DX>
206 CALL SHOWNUM
207 RestoreReg <DX,CX>
208 mov di,offset dg:arg_buf
209;
210; Copy chars until CR/LF or end of line hit
211;
212OUTLN:
213 LODSB
214 CMP DI,254+offset dg:arg_buf ; are we at end of buffer?
215 JAE StoreDone ; Yes, do NOT store
216 CMP AL," "
217 JAE SEND
218 CMP AL,10
219 JZ SEND
220 CMP AL,13
221 JZ SEND
222 CMP AL,9
223 JZ SEND
224 MOV AH,"^"
225 OR AL,40h
226 XCHG AL,AH
227 STOSW
228 JMP StoreDone
229SEND:
230 stosb
231StoreDone:
232 CMP AL,10 ; perform copy until LF is seen
233 LOOPNZ OUTLN
234;
235; Make sure buffer ends with CRLF
236;
237 cmp byte ptr [di-1],10
238 jz Terminate
239;
240; No LF seen. See if CR
241;
242 cmp byte ptr [di-1],CR
243 jz StoreLF
244 mov al,CR
245 stosb
246StoreLF:
247 mov al,10
248 stosb
249Terminate:
250 mov byte ptr [di],0
251
252 call EDLIN_DISP_COUNT ;an000;determine lines printed
253 ; DMS:6/10/87
254 push dx
255 mov dx,offset dg:arg_buf_ptr
256 call std_printf
257 pop dx
258 JCXZ ret7
259 INC BX
260
261 call EDLIN_PG_COUNT ;an000;adjust screen line count
262 ; DMS:6/10/87
263 cmp lc_flag,false ;an000;continue DISPLAY?
264 ; DMS:6/10/87
265 JNZ DISPLN
266 DEC BX
267ret7: return
268
269FNDFIRST:
270 MOV DI,1+OFFSET DG:TXT1
271 mov byte ptr[olddat],1 ;replace with old value if none new
272 CALL GETTEXT
273 OR AL,AL ;Reset zero flag in case CX is zero
274 JCXZ RET7
275 cmp al,1ah ;terminated with a ^Z ?
276 jne sj8
277 mov byte ptr[olddat],0 ;do not replace with old value
278sj8:
279 MOV [OLDLEN],CX
280 XOR CX,CX
281 CMP AL,0DH
282 JZ SETBUF
283 CMP BYTE PTR [SRCHFLG],0
284 JZ NXTBUF
285SETBUF:
286 DEC SI
287NXTBUF:
288 MOV [COMLINE],SI
289 MOV DI,1+OFFSET DG:TXT2
290 CALL GETTEXT
291 CMP BYTE PTR [SRCHFLG],0
292 JNZ NOTREPL
293 CMP AL,0DH
294 JNZ HAVCHR
295 DEC SI
296HAVCHR:
297 MOV [COMLINE],SI
298NOTREPL:
299 MOV [NEWLEN],CX
300 MOV BX,[PARAM1]
301 OR BX,BX
302 JNZ CALLER
303 cmp byte ptr[srchmod],0
304 jne sj9
305 mov bx,1 ;start from line number 1
306 jmp short sj9a
307sj9:
308 MOV BX,[CURRENT]
309 INC BX ;Default search and replace to current+1
310sj9a:
311 CALL CHKRANGE
312CALLER:
313 CALL FINDLIN
314 MOV [LSTFND],DI
315 MOV [NUMPOS],DI
316 MOV [LSTNUM],DX
317 MOV BX,[PARAM2]
318 CMP BX,1
319 SBB BX,-1 ;Decrement everything except zero
320 CALL FINDLIN
321 MOV CX,DI
322 SUB CX,[LSTFND]
323 OR AL,-1
324 JCXZ aret
325 CMP CX,[OLDLEN]
326 jae sj10
327aret: return
328sj10:
329 MOV [SRCHCNT],CX
330
331FNDNEXT:
332
333; Inputs:
334; [TXT1+1] has string to search for
335; [OLDLEN] has length of the string
336; [LSTFND] has starting position of search in text buffer
337; [LSTNUM] has line number which has [LSTFND]
338; [SRCHCNT] has length to be searched
339; [NUMPOS] has beginning of line which has [LSTFND]
340; Outputs:
341; Zero flag set if match found
342; [LSTFND],[LSTNUM],[SRCHCNT] updated for continuing the search
343; [NUMPOS] has beginning of line in which match was made
344
345 MOV AL,[TXT1+1]
346 MOV CX,[SRCHCNT]
347 MOV DI,[LSTFND]
348SCAN:
349 OR DI,DI ;Clear zero flag in case CX=0
350 REPNE SCASB ;look for first byte of string
351
352 retnz ;return if you don't find
353if kanji
354 call kanji_check ;see if the found byte is on a character boundary
355 jnz scan
356endif
357 MOV DX,CX
358 MOV BX,DI ;Save search position
359 MOV CX,[OLDLEN]
360 DEC CX
361 MOV SI,2 + OFFSET DG:TXT1
362 CMP AL,AL ;Set zero flag in case CX=0
363 REPE CMPSB
364 MOV CX,DX
365 MOV DI,BX
366 JNZ SCAN
367 MOV [SRCHCNT],CX
368 MOV CX,DI
369 MOV [LSTFND],DI
370 MOV DI,[NUMPOS]
371 SUB CX,DI
372 MOV AL,10
373 MOV DX,[LSTNUM]
374;Determine line number of match
375GETLIN:
376 INC DX
377 MOV BX,DI
378 REPNE SCASB
379 JZ GETLIN
380 DEC DX
381 MOV [LSTNUM],DX
382 MOV [NUMPOS],BX
383 XOR AL,AL
384 return
385
386if kanji
387
388;Kanji_check idea is to scan backwards to the first
389; character which can't be a kanji or part of one
390; (.lt. 40h) then scan forward to see if the
391; current byte is on character boundary
392;
393;Output ZR <==> we're on a character boundary
394; NZ <==> we're not on character boundary i.e. No Match
395kanji_check:
396 push ax ;save search character
397 push di
398 dec di ;point to the character we found
399 mov si,di ;start searching bakwards from there
400 std
401srch_loop:
402 lodsb
403 cmp al,40H
404 jae srch_loop
405 inc si ;point to first non-kanji
406 cld ;forward search
407kan_loop:
408 cmp si,di ;are we at current byte?
409 jae passed_char ;if we are, or are passed it, exit
410 call next_char ;otherwise advance si to next char
411 jmp short kan_loop ;and loop
412passed_char:
413 pop di
414 pop ax
415 ret
416
417;Next_char si points to a character boundary
418; advance si to point to the beginning of the next char
419;
420;
421next_char:
422 push ax
423 lodsb
424 call testkanj
425 jz not_kanj
426 inc si
427not_kanj:
428 pop ax
429 ret
430
431;--------------------------------------------------------------------;
432; TESTKANJ ~ FIND OUT IS THE BYTE IS A KANJI PREFIX ;
433; ;
434; entry: AL byte to test ;
435; ;
436; exit: NZ if lead byte ortherwise ZR ;
437; ;
438; modifies: AX ;
439; ;
440;--------------------------------------------------------------------;
441
442testkanj:
443 push ax
444 xchg ah,al ;put byte in ah
445 push ds
446 push si
447 lds si,cs:[lbtbl] ;get pointer to lead byte table
448ktlop:
449 lodsb ;direction flag should be OK
450 or al,al ;are we at the end of table?
451 jz notlead ;brif so
452 cmp al,ah ;is START RANGE > CHARACTER?
453 ja notlead ;brif so, not a lead character (carry clear)
454 lodsb ;get second range byte
455 cmp ah,al ;is CHARACTER > END RANGE
456 ja ktlop ;brif so, not a lead character (check next range)
457 or al,al ;make NZ
458notl_exit:
459 pop si
460 pop ds
461 pop ax
462 ret
463notlead:
464 cmp al,al
465 jmp notl_exit
466
467endif
468
469GETTEXT:
470
471; Inputs:
472; SI points into command line buffer
473; DI points to result buffer
474; Function:
475; Moves [SI] to [DI] until ctrl-Z (1AH) or
476; RETURN (0DH) is found. Termination char not moved.
477; Outputs:
478; AL = Termination character
479; CX = No of characters moved.
480; SI points one past termination character
481; DI points to next free location
482
483 XOR CX,CX
484
485GETIT:
486 LODSB
487;-----------------------------------------------------------------------
488 cmp al,quote_char ;a quote character?
489 jne sj101 ;no, skip....
490 lodsb ;yes, get quoted character
491 call make_cntrl
492 jmp short sj102
493;-----------------------------------------------------------------------
494sj101:
495 CMP AL,1AH
496 JZ DEFCHK
497sj102:
498 CMP AL,0DH
499 JZ DEFCHK
500 STOSB
501 INC CX
502 JMP SHORT GETIT
503
504DEFCHK:
505 OR CX,CX
506 JZ OLDTXT
507 PUSH DI
508 SUB DI,CX
509 MOV BYTE PTR [DI-1],cl
510 POP DI
511 return
512
513OLDTXT:
514 cmp byte ptr[olddat],1 ;replace with old text?
515 je sj11 ;yes...
516 mov byte ptr[di-1],cl ;zero text buffer char count
517 return
518
519sj11:
520 MOV CL,BYTE PTR [DI-1]
521 ADD DI,CX
522 return
523
524REPLACE:
525
526; Inputs:
527; CX = Length of new text
528; DX = Length of original text
529; SI = Pointer to new text
530; DI = Pointer to old text in buffer
531; Function:
532; New text replaces old text in buffer and buffer
533; size is adjusted. CX or DX may be zero.
534; CX, SI, DI all destroyed. No other registers affected.
535
536 CMP CX,DX
537 JZ COPYIN
538 PUSH SI
539 PUSH DI
540 PUSH CX
541 MOV SI,DI
542 ADD SI,DX
543 ADD DI,CX
544 MOV AX,[ENDTXT]
545 SUB AX,DX
546 ADD AX,CX
547 CMP AX,[LAST]
548 JAE MEMERR
549 XCHG AX,[ENDTXT]
550 MOV CX,AX
551 SUB CX,SI
552 CMP SI,DI
553 JA DOMOV
554 ADD SI,CX
555 ADD DI,CX
556 STD
557DOMOV:
558 INC CX
559
560 REP MOVSB
561 CLD
562 POP CX
563 POP DI
564 POP SI
565COPYIN:
566 REP MOVSB
567 return
568
569MEMERR:
570 MOV DX,OFFSET DG:MEMFUL_ptr
571 call std_printf
572 JMP COMMAND
573
574
575LOADBUF:
576 MOV DI,2 + OFFSET DG:EDITBUF
577 MOV CX,255
578 MOV DX,-1
579LOADLP:
580 LODSB
581 STOSB
582 INC DX
583 CMP AL,13
584 LOOPNZ LOADLP
585 MOV [EDITBUF+1],DL
586 retz
587TRUNCLP:
588 LODSB
589 INC DX
590 CMP AL,13
591 JNZ TRUNCLP
592 DEC DI
593 STOSB
594 return
595
596SCANEOF:
597 cmp [loadmod],0
598 je sj52
599
600;----- Load till physical end of file
601
602 cmp cx,word ptr[amnt_req]
603 jb sj51
604 xor al,al
605 inc al ;reset zero flag
606 return
607sj51:
608 jcxz sj51b
609 push di ;get rid of any ^Z at the end of the file
610 add di,cx
611 dec di ;points to last char
612 cmp byte ptr [di],1ah
613 pop di
614 jne sj51b
615 dec cx
616sj51b:
617 xor al,al ;set zero flag
618 call check_end ;check that we have a CRLF pair at the end
619 return
620
621;----- Load till first ^Z is found
622
623sj52:
624 PUSH DI
625 PUSH CX
626 MOV AL,1AH
627 or cx,cx
628 jz not_found ;skip with zero flag set
629 REPNE SCASB ;Scan for end of file mark
630 jnz not_found
631 LAHF ;Save flags momentarily
632 inc cx ;include the ^Z
633 SAHF ;Restore flags
634not_found:
635 mov di,cx ;not found at the end
636 POP CX
637 LAHF ;Save flags momentarily
638 SUB CX,DI ;Reduce byte count if EOF found
639 SAHF ;Restore flags
640 POP DI
641 call check_end ;check that we have a CRLF pair at the end
642
643 return
644
645
646;-----------------------------------------------------------------------
647; If the end of file was found, then check that the last character
648; in the file is a LF. If not put a CRLF pair in.
649
650check_end:
651 jnz not_end ;end was not reached
652 pushf ;save return flag
653 push di ;save pointer to buffer
654 add di,cx ;points to one past end on text
655 dec di ;points to last character
656 cmp di,offset dg:start
657 je check_no
658 cmp byte ptr[di],0ah ;is a LF the last character?
659 je check_done ;yes, exit
660check_no:
661 mov byte ptr[di+1],0dh ;no, put a CR
662 inc cx ;one more char in text
663 mov byte ptr[di+2],0ah ;put a LF
664 inc cx ;another character at the end
665check_done:
666 pop di
667 popf
668not_end:
669 return
670
671CRLF:
672 push dx
673 mov dx,offset dg:crlf_ptr
674 call std_printf
675 pop dx
676 return
677LF:
678 MOV dx,offset dg:lf_ptr
679 call std_printf
680 return
681
682ABORTCOM:
683 MOV AX,CS
684 MOV DS,AX
685 MOV ES,AX
686 MOV AX,cstack
687 MOV SS,AX
688 MOV SP,STACK
689 STI
690 CALL CRLF
691 JMP COMMAND
692
693DELBAK:
694 ;Delete old backup file (.BAK)
695
696 MOV BYTE PTR [DELFLG],1
697 MOV DI,[EXT_PTR]
698 MOV SI,OFFSET DG:BAK
699 MOVSW
700 MOVSW
701 MOVSB
702 MOV AH,UNLINK
703 MOV DX,OFFSET DG:TEMP_PATH
704 INT 21H
705; $if c ;error ? ;an000; dms;
706 JNC $$IF1
707 cmp ax,Access_Denied ;file read only? ;an000; dms;
708; $if e ;yes ;an000; dms;
709 JNE $$IF2
710 mov bx,[Wrt_Handle] ;close .$$$ file ;an000; dms;
711 mov ah,Close ;close function ;an000; dms;
712 int 21h ;close it ;an000; dms;
713
714 mov di,[Ext_Ptr] ;point to extension ;an000; dms;
715 mov si,offset dg:$$$File ;point to .$$$ extension;an000; dms;
716 movsw ;get .$$$ extension ;an000; dms;
717 movsw ; ;an000; dms;
718 movsb ; ;an000; dms;
719 mov dx,offset dg:Temp_Path ;point to .$$$ file ;an000; dms;
720 mov ah,Unlink ;delete it ;an000; dms;
721 int 21h ; ;an000; dms;
722
723 mov di,[Ext_Ptr] ;point to extension ;an000; dms;
724 mov si,offset dg:BAK ;point to .BAK extension;an000; dms;
725 movsw ;get .BAK extension ;an000; dms;
726 movsw ; ;an000; dms;
727 movsb ; ;an000; dms;
728 mov dx,offset dg:Del_Bak_Ptr;point to error message ;an000; dms;
729 jmp Xerror ;display message & exit ;an000; dms;
730; $endif
731$$IF2:
732; $endif
733$$IF1:
734
735 MOV DI,[EXT_PTR]
736 MOV SI,OFFSET DG:$$$FILE
737 MOVSW
738 MOVSW
739 MOVSB
740 return
741
742
743;-----------------------------------------------------------------------;
744; Will scan buffer given pointed to by SI and get rid of quote
745;characters, compressing the line and adjusting the length at the
746;begining of the line.
747; Preserves al registers except flags and AX .
748
749unquote:
750 push cx
751 push di
752 push si
753 mov di,si
754 mov cl,[si-1] ;length of buffer
755 xor ch,ch
756 mov al,quote_char
757 cld
758unq_loop:
759 jcxz unq_done ;no more chars in the buffer, exit
760 repnz scasb ;search for quote character
761 jnz unq_done ;none found, exit
762 push cx ;save chars left in buffer
763 push di ;save pointer to quoted character
764 push ax ;save quote character
765 mov al,byte ptr[di] ;get quoted character
766 call make_cntrl
767 mov byte ptr[di],al
768 pop ax ;restore quote character
769 mov si,di
770 dec di ;points to the quote character
771 inc cx ;include the carriage return also
772 rep movsb ;compact line
773 pop di ;now points to after quoted character
774 pop cx
775 jcxz sj13 ;if quote char was last of line do not adjust
776 dec cx ;one less char left in the buffer
777sj13: pop si
778 dec byte ptr[si-1] ;one less character in total buffer count also
779 push si
780 jmp short unq_loop
781
782unq_done:
783 pop si
784 pop di
785 pop cx
786 return
787
788
789;-----------------------------------------------------------------------;
790; Convert the character in AL to the corresponding control
791; character. AL has to be between @ and _ to be converted. That is,
792; it has to be a capital letter. All other letters are left unchanged.
793
794make_cntrl:
795 push ax
796 and ax,11100000b
797 cmp ax,01000000b
798 pop ax
799 jne sj14
800 and ax,00011111b
801sj14:
802 return
803
804
805;---- Kill spaces in buffer --------------------------------------------;
806;=========================================================================
807; kill_bl : Parses over spaces in a buffer.
808;
809; Date : 6/10/86
810;=========================================================================
811kill_bl:
812
813 push bx ;an000;save affected reg.
814kill_bl_cont:
815
816 lodsb ;get rid of blanks
817 cmp al,9
818 je kill_bl_cont ;an000;it is a tab
819
820 cmp al,10
821 je kill_bl_cont ;an000;if LF
822
823 cmp al,' '
824 je kill_bl_cont ;an000;we have a space
825
826 if kanji ;an000;is this a kanji assembly
827 call testkanj ;an000;do we have a dbcs lead byte
828; $if nz ;an000;yes, we have a lead byte
829 JZ $$IF5
830 cmp al,dbcs_lead_byte;an000;is it 81h
831; $if z ;an000;it is 81h
832 JNZ $$IF6
833 mov bl,ds:[si] ;an000;set up for compare
834 cmp bl,asian_blk;an000;is it 40h
835; $if z ;an000;we have an asian blank
836 JNZ $$IF7
837 lodsb ;an000;skip byte containing 81h
838 jmp kill_bl_cont
839; $endif ;an000;
840$$IF7:
841; $endif ;an000;fall through no delim
842$$IF6:
843 ; found
844; $endif ;an000;end test for dbcs lead byte
845$$IF5:
846 endif ;an000;end conditional assembly
847
848 pop bx ;an000;restore affected reg.
849 return
850
851;----- Capitalize the character in AL ----------------------------------;
852; ;
853; Input: ;
854; ;
855; AL contains a character to capitalize ;
856; ;
857; Output: ;
858; ;
859; AL contains a capitalized character ;
860; ;
861;-----------------------------------------------------------------------;
862
863MAKE_CAPS:
864 CMP AL,"a"
865 JB CAPS1
866 CMP AL,"z"
867if KANJI
868 JA CAPS1 ; M003 MSKK TAR 476, kana chars
869else
870 JG CAPS1
871endif
872 AND AL,0DFH
873CAPS1:
874 return
875
876QUIT:
877 CMP ParamCt,1
878 JZ Quit1
879CERR: JMP ComErr
880Quit1: CMP Param1,0
881 JNZ CERR
882 MOV DX,OFFSET DG:QMES_ptr
883 call std_printf
884
885IF KANJI
886 CALL TESTKANJ
887 JZ ASCII
888 MOV AX, (STD_CON_INPUT_FLUSH SHL 8) + 0
889 INT 21H ; Eat the trailing byte.
890 JMP CRLF
891ASCII:
892ENDIF
893;=========================================================================
894; We are invoking the VAL_YN proc here. This will replace the
895; method of Y/N validation used prior to DOS 4.00.
896;
897; Date : 6/10/87
898;=========================================================================
899
900 call val_yn ;an000;pass Y/N byte in AL to macro
901 cmp ax,yes ;an000;did we return a Y
902 jz NoCRLF ;an000; dms; close the file
903 cmp ax,no ;an000; dms; return N?
904; $if ne ;an000; dms; neither N or Y - reprompt
905 JE $$IF11
906 push dx ;an000; dms; must be N
907 mov dx,offset dg:crlf_ptr ;an000; dms; spit out CRLF
908 call std_printf ;an000; dms; and return
909 pop dx ;an000; dms; to caller
910 jmp Quit1 ;an000; dms; reprompt
911; $endif ;an000; dms;
912$$IF11:
913 push dx ;an000; dms; must be N
914 mov dx,offset dg:crlf_ptr ;an000; dms; spit out CRLF
915 call std_printf ;an000; dms; and return
916 pop dx ;an000; dms; to caller
917 return ;an000; dms;
918
919;=========================================================================
920; End of Y/N validation check for qmes_ptr
921;=========================================================================
922
923NOCRLF:
924 MOV BX,[WRT_HANDLE]
925 MOV AH,CLOSE
926 INT 21H
927 MOV DX,OFFSET DG:TEMP_PATH
928 MOV AH,UNLINK
929 INT 21H
930 mov ah,exit
931 xor al,al
932 INT 21H
933
934QUERY:
935 TEST BYTE PTR [QFLG],-1
936 retz
937 MOV DX,OFFSET DG:ASK_ptr
938 call std_printf
939 PUSH AX
940 CALL CRLF
941 POP AX
942IF KANJI
943 CALL TESTKANJ
944 JZ ASCII1
945 PUSH AX
946 MOV AX,(STD_CON_INPUT_FLUSH SHL 8) + 0
947 INT 21H ;Eat the trailing byte
948 XOR AX,AX
949 INC AX ; non zero flag
950 POP AX
951 return
952ASCII1:
953ENDIF
954 CMP AL,13 ;Carriage return means yes
955 retz
956;=========================================================================
957; We are invoking the VAL_YN proc here. This will replace the
958; method of Y/N validation used prior to DOS 4.00.
959; This invocation of val_yn will return ZR if Y is found, otherwise
960; it will return NZ.
961;
962; Date : 6/10/87
963;=========================================================================
964
965 call val_yn ;an000;pass Y/N byte in AL to macro
966 cmp ax,yes ;an000;did we return a Y
967 je Query_Exit ;an000; dms; exit Y/N validation
968 cmp ax,no ;an000; dms; N response?
969 jne Query ;an000; dms; no - reprompt user
970 cmp ax,yes ;an000; dms; must have N response - force
971 ; NZ flag
972Query_Exit:
973
974
975;=========================================================================
976; End of Y/N validation check for ask_ptr
977;=========================================================================
978
979 return
980
981;=========================================================================
982; EDLIN_DISP_COUNT: This routine will determine the number of lines
983; actually displayed to the screen. Lines displayed to
984; the screen for one EDLIN line printed will be calculated
985; by the following formula:
986;
987; LINES_PRINTED = (LINE_LEN + 10) / SCREEN_WIDTH
988;
989; LINES_PRINTED - Actual number of lines printed on screen
990; for one EDLIN line. If LINES_PRINTED has
991; a remainder, it will be rounded up.
992;
993; LINE_LEN - The length, in bytes, of the EDLIN line
994; printed.
995;
996; SCREEN_WIDTH - The width in bytes of the current display.
997;
998; Inputs : DI - offset into buffer containing line printed
999; DISP_WIDTH - width of current video output
1000;
1001; Outputs: LC_ADJ - factor to adjust line counter by
1002;
1003; Date : 6/10/87
1004;=========================================================================
1005
1006EDLIN_DISP_COUNT proc near ;an000;lines printed
1007
1008 push dx ;an000;save affected regs
1009 push di ;an000;
1010 push ax ;an000;
1011 push bx ;an000;
1012 push cx ;an000;
1013
1014 mov bx,offset dg:arg_buf ;an000;arg_buf holds line
1015 ; printed
1016 mov ax,di ;an000;where print line ends
1017 sub ax,bx ;an000;diff = line's length
1018 add ax,10 ;an000;adjust for leading blks
1019 mov cl,dg:disp_width ;an000;set up for division
1020 div cl ;an000;divide AX by the
1021 ; width of the console
1022 cmp ah,0 ;an000;see if a remainder
1023; $if nz ;an000;if a remainder
1024 JZ $$IF13
1025 add al,1 ;an000;increment AL 1
1026 ; to round upward
1027; $endif ;an000;
1028$$IF13:
1029
1030 mov lc_adj,al ;an000;number of lines printed
1031 ; on console
1032 pop cx ;an000;restore affected regs
1033 pop bx ;an000;
1034 pop ax ;an000;
1035 pop di ;an000;
1036 pop dx ;an000;
1037
1038 ret ;an000;return to caller
1039
1040EDLIN_DISP_COUNT endp ;an000;end proc
1041
1042;=========================================================================
1043; EDLIN_PG_COUNT : This routine determines whether or not we will continue
1044; displaying text lines based on the count of lines that
1045; can be output to the current video screen.
1046;
1047; Inputs : LC_ADJ - adjustment factor for number of lines printed
1048; PG_COUNT - number of lines remaining on current video
1049; display
1050; DX - holds the total number of lines to print
1051; CONTINUE - signals if the user wants to continue
1052; printing lines.
1053;
1054; Outputs: LC_FLAG - used to signal completion of print
1055;
1056; Date : 6/10/87
1057;=========================================================================
1058
1059EDLIN_PG_COUNT proc near ;an000;track remaining lines
1060
1061 push ax ;an000;save affected regs
1062
1063 mov lc_flag,true ;an000;init. flag to signal
1064 ; continue printing
1065
1066 mov al,pg_count ;an000;set up for page adj.
1067 cmp al,lc_adj ;an000;see if we are at end
1068; $if be ;an000
1069 JNBE $$IF15
1070 mov pg_count,0 ;an000;set pg_count to 0
1071; $else
1072 JMP SHORT $$EN15
1073$$IF15:
1074 sub al,lc_adj ;an000;adjust number of lines
1075 mov pg_count,al ;an000;save remaining line ct.
1076; $endif ;an000;
1077$$EN15:
1078
1079 dec dx ;an000;decrease total number
1080 ; of lines to print by 1
1081; $if nz ;an000;more lines to print
1082 JZ $$IF18
1083 cmp pg_count,0 ;an000;have we printed screen
1084; $if be ;an000;we have printed screen
1085 JNBE $$IF19
1086 call EDLIN_PG_PROMPT ;an000;prompt the user to
1087 ; "Continue(Y/N)?"
1088 cmp continue,true ;an000;did user say continue
1089; $if z ;an000;continue
1090 JNZ $$IF20
1091 mov al,dg:disp_len ;an000;begin init of screen
1092; dec al ;an000; length
1093 mov pg_count,al ;an000;
1094; $else ;an000;do not continue
1095 JMP SHORT $$EN20
1096$$IF20:
1097 mov lc_flag,false ;an000;signal no more to print
1098; $endif ;an000;
1099$$EN20:
1100; $endif ;an000;
1101$$IF19:
1102; $else ;an000;total lines printed
1103 JMP SHORT $$EN18
1104$$IF18:
1105 mov lc_flag,false ;an000;signal no more to print
1106; $endif ;an000;
1107$$EN18:
1108
1109 pop ax ;an000;restore affected regs
1110
1111 ret ;an000;return to caller
1112
1113EDLIN_PG_COUNT endp ;an000;end procedure
1114
1115;=========================================================================
1116; EDLIN_PG_PROMPT : This routine prompts the user as to whether or not to
1117; continue printing lines to the video display, if lines
1118; are still present for printing.
1119;
1120; Inputs : none
1121;
1122; Outputs: CONTINUE - flag that signals other routines whether or
1123; not to continue printing.
1124;
1125; Date : 6/10/87
1126;=========================================================================
1127
1128EDLIN_PG_PROMPT proc near ;an000;ask user to continue?
1129
1130 push dx ;an000;save affected regs.
1131 push ax ;an000;
1132
1133EPP_Reprompt:
1134
1135 mov dx,offset dg:cont_ptr ;an000;point to Continue msg.
1136 call std_printf ;an000;invoke message ret.
1137
1138 push ax ;an000;save affected regs.
1139 call crlf ;an000;send crlf
1140 pop ax ;an000;restore affected regs.
1141
1142 call val_yn ;an000;Y/N validation
1143
1144 cmp ax,yes ;an000;did we have a Y
1145 jz EPP_True_Exit ;an000;we had a Y
1146 cmp ax,no ;an000;did we have a N
1147 jz EPP_False_Exit ;an000;yes
1148 jmp EPP_Reprompt ;an000;neither Y or N - reprompt
1149
1150EPP_True_Exit:
1151
1152 mov Continue,True ;an000;flag Y found
1153 jmp EPP_Exit ;an000;exit routine
1154
1155EPP_False_Exit:
1156
1157 mov Continue,False ;an000;flag N found
1158
1159EPP_Exit:
1160
1161 pop ax ;an000;restore affected regs.
1162 pop dx ;an000;
1163
1164 ret ;an000;return to caller
1165
1166EDLIN_PG_PROMPT endp ;an000;end procedure
1167
1168;=========================================================================
1169; val_yn: This proc validates a Y/N response entered by the user. The
1170; routine uses the new functionality of "GET EXTENDED COUNTRY
1171; INFORMATION" being implemented in DOS 4.00.
1172;
1173; Inputs : AL - character to be validated for Y/N response
1174;
1175; Outputs: AX - 00h = "N"o
1176; - 01h = "Y"es
1177;=========================================================================
1178
1179val_yn proc near ;an000;validate Y/N response
1180
1181 push dx ;an000;save affected registers
1182 push cx ;an000;
1183 push bx ;an000;
1184
1185 mov dl,al ;an000;character to be checked for Y/N
1186 mov ah,GetExtCntry ;an000;get extended country information
1187 mov al,yn_chk ;an000;perform Y/N checking
1188 mov cx,max_len ;an000;max. len. of Y/N char.
1189 int 21h ;an000;invoke function
1190
1191 pop bx ;an000;restore affected registers
1192 pop cx ;an000;
1193 pop dx ;an000;
1194
1195 ret ;an000;return to caller
1196
1197val_yn endp ;an000;end proc
1198
1199
1200
1201code ends
1202 end
1203 \ No newline at end of file
diff --git a/v4.0/src/CMD/EDLIN/EDLEQU.ASM b/v4.0/src/CMD/EDLIN/EDLEQU.ASM
new file mode 100644
index 0000000..d60796d
--- /dev/null
+++ b/v4.0/src/CMD/EDLIN/EDLEQU.ASM
@@ -0,0 +1,156 @@
1 page 60,132 ;
2
3 .xlist
4 include DOSSYM.INC
5 include EDLSTDSW.INC
6 .list
7
8;======================= START OF SPECIFICATIONS =========================
9;
10; MODULE NAME: EDLEQU.SAL
11;
12; DESCRIPTIVE NAME: EQUATES FOR EDLIN
13;
14; FUNCTION: PROVIDES EQUATES FOR EDLIN. IT ALSO PROVIDES THE MACRO
15; VAL_YN.
16;
17; ENTRY POINT: NA
18;
19; INPUT: NA
20;
21; EXIT NORMAL: NA
22;
23; EXIT ERROR: NA
24;
25; INTERNAL REFERENCES:
26;
27; ROUTINE: VAL_YN - VALIDATES Y/N RESPONSES FROM THE KEYBOARD
28;
29; EXTERNAL REFERENCES:
30;
31; ROUTINE: NA
32;
33; NOTES: THIS MODULE IS TO BE PREPPED BY SALUT WITH THE "PR" OPTIONS.
34; LINK EDLIN+EDLCMD1+EDLCMD2+EDLMES+EDLPARSE
35;
36; REVISION HISTORY:
37;
38; AN000 VERSION 4.00 - REVISIONS MADE RELATE TO THE FOLLOWING:
39;
40; - IMPLEMENT SYSPARSE
41; - IMPLEMENT MESSAGE RETRIEVER
42; - IMPLEMENT DBCS ENABLING
43; - ENHANCED VIDEO SUPPORT
44; - EXTENDED OPENS
45; - SCROLLING ERROR
46;
47; COPYRIGHT: "MS DOS EDLIN UTILITY"
48; "VERSION 4.00 (C) COPYRIGHT 1988 Microsoft"
49;
50;======================= END OF SPECIFICATIONS ===========================
51
52
53
54
55
56
57COMAND_LINE_LENGTH EQU 128
58QUOTE_CHAR EQU 16H ;Quote character = ^V
59CR EQU 13
60STKSIZ EQU 200h
61STACK equ stksiz
62
63asian_blk equ 40h ;an000;asian blank 2nd. byte
64dbcs_lead_byte equ 81h ;an000;asian blank lead byte
65nul equ 00h ;an000;nul character
66Access_Denied equ 0005h ;an000;extended error code for access denied
67
68;======== Y/N validation equates =========================================
69
70yn_chk equ 23h ;an000;check for Y/N response
71max_len equ 01h ;an000;max. len. for Y/N char.
72yes equ 01h ;an000;boolean yes value
73no equ 00h ;an000;boolean no value
74
75;======== text display values for initialization =========================
76
77video_get equ 0fh ;an000;int 10 get video attributes
78video_set equ 00h ;an000;int 10 set video attributes
79video_text equ 03h ;an000;80 X 25 color monitor
80
81;======== code page values for functions =================================
82
83get_set_cp equ 66h ;an000;get or set code page
84get_cp equ 01h ;an000;get active code page
85set_cp equ 02h ;an000;set active code page
86
87;======== screen length & width defaults =================================
88
89std_out equ 01h ;an000;console output
90display_attr equ 03h ;an000;display for IOCTL
91Get_Display equ 7fh ;an000;Get display for IOCTL
92Def_Disp_Len equ 25 ;an000;default display length
93Def_Disp_Width equ 80 ;an000;default display width
94
95;======== extended open equates ==========================================
96
97rw equ 0082h ;an000;read/write
98 ; compatibility
99 ; noinherit
100 ; int 24h handler
101 ; no commit
102
103ext_read equ 0080h ;an000;read
104 ; compatibility
105 ; noinherit
106 ; int 24h handler
107 ; no commit
108
109rw_flag equ 0101h ;an000;fail if file not exist
110 ; open if file exists
111 ; don't validate code page
112
113creat_flag equ 0110h ;an000;create if file does not exist
114 ; fail if file exists
115 ; don't validate code page
116
117open_flag equ 0101h ;an000;fail if file not exist
118 ; open if file exists
119 ; don't validate code page
120
121creat_open_flag equ 0112h ;an000;create if file does not exist
122 ; open/replace if file exists
123 ; don't validate code page
124
125attr equ 00h ;an000;attributes set to 0
126
127;======== parse value equates ============================================
128
129nrm_parse_exit equ 0ffffh ;an000;normal exit from sysparse
130too_many equ 01h ;an000;too many parms entered
131op_missing equ 02h ;an000;required operand missing
132sw_missing equ 03h ;an000;not a valid switch
133
134
135;======== Strucs =========================================================
136
137Display_Buffer_Struc Struc ;an000;dms;
138
139 Display_Info_Level db ? ;an000;dms;
140 Display_Reserved db ? ;an000;dms;
141 Display_Buffer_Size dw ? ;an000;dms;
142 Display_Flags dw ? ;an000;dms;
143 Display_Mode db ? ;an000;dms;
144 ; TEXT=01
145 ; APA =02
146 Display_Mode_Reserved db ? ;an000;dms;
147 Display_Colors dw ? ;an000;dms;# of colors
148 Display_Width_Pixels dw ? ;an000;dms;# of pixels in width
149 Display_Length_Pixels dw ? ;an000;dms;# of pixels in len.
150 Display_Width_Char dw ? ;an000;dms;# of chars in width
151 Display_Length_Char dw ? ;an000;dms;# of chars in length
152
153Display_Buffer_Struc ends ;an000;dms;
154
155
156 \ No newline at end of file
diff --git a/v4.0/src/CMD/EDLIN/EDLIN.ASM b/v4.0/src/CMD/EDLIN/EDLIN.ASM
new file mode 100644
index 0000000..5368db0
--- /dev/null
+++ b/v4.0/src/CMD/EDLIN/EDLIN.ASM
@@ -0,0 +1,1843 @@
1 PAGE 60,132;
2 TITLE EDLIN
3
4;======================= START OF SPECIFICATIONS =========================
5;
6; MODULE NAME: EDLIN.SAL
7;
8; DESCRIPTIVE NAME: LINE TEXT EDITOR
9;
10; FUNCTION: EDLIN IS A SIMPLE, LINE ORIENTED TEXT EDITOR. IT PROVIDES
11; USERS OF DOS THE ABILITY TO CREATE AND EDIT TEXT FILES.
12;
13; ENTRY POINT: EDLIN
14;
15; INPUT: DOS COMMAND LINE
16; EDLIN COMMANDS
17; TEXT
18;
19; EXIT NORMAL: NA
20;
21; EXIT ERROR: NA
22;
23; INTERNAL REFERENCES:
24;
25; EXTERNAL REFERENCES:
26;
27; ROUTINE: EDLCMD1 - CONTAINS ROUTINES CALLED BY EDLIN
28; EDLCMD1 - CONTAINS ROUTINES CALLED BY EDLIN
29; EDLMES - CONTAINS ROUTINES CALLED BY EDLIN
30;
31; NOTES: THIS MODULE IS TO BE PREPPED BY SALUT WITH THE "PR" OPTIONS.
32; LINK EDLIN+EDLCMD1+EDLCMD2+EDLMES+EDLPARSE
33;
34; REVISION HISTORY:
35;
36; AN000 VERSION 4.00 - REVISIONS MADE RELATE TO THE FOLLOWING:
37;
38; - IMPLEMENT SYSPARSE
39; - IMPLEMENT MESSAGE RETRIEVER
40; - IMPLEMENT DBCS ENABLING
41; - ENHANCED VIDEO SUPPORT
42; - EXTENDED OPENS
43; - SCROLLING ERROR
44;
45; COPYRIGHT: "MS DOS EDLIN UTILITY"
46; "VERSION 4.00 (C) COPYRIGHT 1988 Microsoft"
47; "LICENSED MATERIAL - PROPERTY OF Microsoft"
48;
49;
50; MICROSOFT REVISION HISTORY:
51; ;
52; V1.02 ;
53; ;
54; V2.00 9/13/82 M.A.U ;
55; ;
56; 2/23/82 Rev. 13 N. P ;
57; Changed to 2.0 system calls. ;
58; Added an error message for READ-ONLY files ;
59; ;
60; 11/7/83 Rev. 14 N. P ;
61; Changed to .EXE format and added Printf ;
62; ;
63; V2.50 11/15/83 Rev. 1 M.A. U ;
64; Official dos 2.50 version. Some random bug ;
65; fixes and message changes. ;
66; ;
67; 11/30/83 Rev. 2 MZ ;
68; Close input file before rename. ;
69; Jmp to replace after line edit ;
70; ;
71; 02/01/84 Rev. 3 M.A. U ;
72; Now it is called 3.00 dos. Repaired problem ;
73; with using printf and having %'s as data. ;
74; ;
75; 02/15/84 MZ make out of space a fatal error with output;
76; ;
77; 03/28/84 MZ fixes bogus (totally) code in MOVE/COPY ;
78; ;
79; 04/02/84 MZ fixes DELETE and changes MOVE/COPY/EDIT ;
80; ;
81; V3.20 08/29/86 Rev. 1 S.M. G ;
82; ;
83; 08/29/86 M001 MSKK TAR 593, TAB MOVEMENT ;
84; ;
85; 08/29/86 M002 MSKK TAR 157, BLKMOVE 1,1,1m, 1,3,1m ;
86; ;
87; 08/29/86 M003 MSKK TAR 476, EDLCMD2,MAKECAPS,kana char;
88; ;
89; 08/29/86 M004 MSKK TAR 191, Append load size ;
90; ;
91; 08/29/86 M005 IBMJ TAR Transfer Load command ;
92;
93;
94;======================= END OF SPECIFICATIONS =========================== ;
95
96include edlequ.asm
97
98SUBTTL Contants and Data areas
99PAGE
100 extrn parser_command:near ;an000;SYSPARSE
101
102CODE SEGMENT PUBLIC
103CODE ENDS
104
105CONST SEGMENT PUBLIC WORD
106CONST ENDS
107
108cstack segment stack
109cstack ends
110
111DATA SEGMENT PUBLIC WORD
112DATA ENDS
113
114DG GROUP CODE,CONST,cstack,DATA
115
116CONST SEGMENT PUBLIC WORD
117
118 public bak,$$$file,delflg,loadmod,txt1,txt2
119
120 EXTRN BADDRV_ptr:word,NDNAME_ptr:word,bad_vers_err:byte,opt_err_ptr:word
121 EXTRN NOBAK_ptr:word,BADCOM_ptr:word,NEWFIL_ptr:word,DEST_ptr:word,MRGERR_ptr:word
122 EXTRN NODIR_ptr:word,FILENM_ptr:word,ro_err_ptr:word,bcreat_ptr:word
123 EXTRN TOO_MANY_ptr:word,lf_ptr:word,prompt_ptr:word
124 EXTRN MemFul_Ptr:word
125
126BAK DB ".BAK",0
127
128$$$FILE DB ".$$$",0
129
130fourth db 0 ;fourth parameter flag
131
132loadmod db 0 ;Load mode flag, 0 = ^Z marks the
133 ; end of a file, 1 = viceversa.
134optchar db "-"
135
136TXT1 DB 0,80H DUP (?)
137TXT2 DB 0,80H DUP (?)
138DELFLG DB 0
139fNew DB 0 ; old file
140HAVEOF DB 0
141
142CONST ENDS
143
144cstack segment stack
145 db stksiz dup (?)
146cstack ends
147
148DATA SEGMENT PUBLIC WORD
149
150 extrn arg_buf_ptr:word ;an000;
151 extrn line_num_buf_ptr:word ;an000;
152
153 public path_name,ext_ptr,start,line_num,line_flag
154 public arg_buf,wrt_handle,temp_path
155 public current,pointer,qflg,editbuf,amnt_req,fname_len,delflg,lastlin
156 public olddat,oldlen,newlen,srchflg,srchmod
157 public comline,lstfnd,numpos,lstnum,last,srchcnt
158 public rd_handle,haveof,ending,three4th,one4th
159
160 public lc_adj ;an000;page length adj. factor
161 public lc_flag ;an000;display cont. flag
162 public pg_count ;an000;lines left on screen
163 public Disp_Len ;an000;display length
164 public Disp_Width ;an000;display width
165 public continue ;an000;boolean T/F
166 public temp_path ;an000;pointer to filespec buf
167
168Video_Buffer label word ;an000;buffer for video attr
169 db 0 ;an000;dms;
170 db 0 ;an000;dms;
171 dw 14 ;an000;dms;
172 dw 0 ;an000;dms;
173 db ? ;an000;dms;
174 db 0 ;an000;dms;
175 dw ? ;an000;dms;# of colors
176 dw ? ;an000;dms;# of pixels in width
177 dw ? ;an000;dms;# of pixels in len.
178 dw ? ;an000;dms;# of chars in width
179 dw ? ;an000;dms;# of chars in length
180
181
182video_org db ? ;an000;original video mode on
183 ; entry to EDLIN.
184lc_adj db ? ;an000;page length adj. factor
185lc_flag db ? ;an000;display cont. flag
186pg_count db ? ;an000;lines left on screen
187Disp_Len db ? ;an000;display length
188Disp_Width db ? ;an000;display width
189continue db ? ;an000;boolean T/F
190
191
192;-----------------------------------------------------------------------;
193; This is a table that is sequentially filled via GetNum. Any additions to it
194; must be placed in the correct position. Currently Param4 is known to be a
195; count and thus is treated specially.
196
197 public param1,param2,Param3,param4,ParamCt
198PARAM1 DW ?
199PARAM2 DW ?
200PARAM3 DW ?
201PARAM4 DW ?
202ParamCt DW ? ; count of passed parameters
203 if kanji ; Used in TESTKANJ:
204LBTbl dd ? ; long pointer to lead byte table
205 endif ; in the dos (from syscall 63H)
206
207;-----------------------------------------------------------------------;
208
209PUBLIC PTR_1, PTR_2, PTR_3, OLDLEN, NEWLEN, LSTFND, LSTNUM, NUMPOS, SRCHCNT
210PUBLIC CURRENT, POINTER, ONE4TH, THREE4TH, LAST, ENDTXT, COPYSIZ
211PUBLIC COMLINE, LASTLIN, COMBUF, EDITBUF, EOL, QFLG, ENDING, SRCHFLG
212PUBLIC PATH_NAME, FNAME_LEN, RD_HANDLE, TEMP_PATH, WRT_HANDLE, EXT_PTR
213PUBLIC MRG_PATH_NAME, MRG_HANDLE, amnt_req, olddat, srchmod, MOVFLG, org_ds
214if kanji
215public lbtbl
216endif
217
218;
219; These comprise the known state of the internal buffer. All editing
220; functions must preserve these values.
221;
222CURRENT DW ? ; the 1-based index of the current line
223POINTER DW ? ; pointer to the current line
224ENDTXT DW ? ; pointer to end of buffer. (at ^Z)
225LAST DW ? ; offset of last byte of memory
226;
227; The label Start is the beginning of the in-core buffer.
228;
229
230;
231; Internal temporary pointers
232;
233PTR_1 DW ?
234PTR_2 DW ?
235PTR_3 DW ?
236
237QFLG DB ? ; TRUE => query for replacement
238OLDLEN DW ?
239NEWLEN DW ?
240LSTFND DW ?
241LSTNUM DW ?
242NUMPOS DW ?
243SRCHCNT DW ?
244ONE4TH DW ?
245THREE4TH DW ?
246COPYSIZ DW ? ; total length to copy
247COPYLEN DW ? ; single copy length
248COMLINE DW ?
249LASTLIN DW ?
250COMBUF DB 82H DUP (?)
251EDITBUF DB 258 DUP (?)
252EOL DB ?
253ENDING DB ?
254SRCHFLG DB ?
255PATH_NAME DB 128 DUP(0)
256FNAME_LEN DW ?
257RD_HANDLE DW ?
258TEMP_PATH DB 128 DUP(?)
259WRT_HANDLE DW ?
260EXT_PTR DW ?
261MRG_PATH_NAME DB 128 DUP(?)
262MRG_HANDLE DW ?
263amnt_req dw ? ; amount of bytes requested to read
264olddat db ? ; Used in replace and search, replace
265 ; by old data flag (1=yes)
266srchmod db ? ; Search mode: 1=from current+1 to
267 ; end of buffer, 0=from beg. of
268 ; buffer to the end (old way).
269MOVFLG DB ?
270org_ds dw ? ;Orginal ds points to header block
271
272arg_buf db 258 dup (?)
273
274EA_Flag db False ;an000; dms;set to false
275
276EA_Buffer_Size dw ? ;an000; dms;EA buffer's size
277
278EA_Parm_List label word ;an000; dms;EA parms
279 dd dg:Start ;an000; dms;ptr to EA's
280 dw 0001h ;an000; dms;additional parms
281 db 06h ;an000; dms;
282 dw 0002h ;an000; dms;iomode
283
284
285line_num dw ?
286
287line_flag db ?,0
288 EVEN ;align on word boundaries
289;
290; Byte before start of data buffer must be < 40H !!!!!!
291;
292 dw 0 ;we scan backwards looking for
293 ;a character which can't be part
294 ;of a two-byte seqence. This
295 ;double byte sequence will cause the back
296 ;scan to stop here.
297START LABEL WORD
298
299DATA ENDS
300
301
302CODE SEGMENT PUBLIC
303
304ASSUME CS:DG,DS:NOTHING,ES:NOTHING,SS:CStack
305
306
307
308 extrn pre_load_message:near ;an000;message loader
309 extrn disp_fatal:near ;an000;fatal message
310 extrn printf:near ;an000;new PRINTF routine
311
312 extrn findlin:near,shownum:near,loadbuf:near,crlf:near,lf:near
313 extrn abortcom:near,delbak:near,unquote:near,kill_bl:near
314 extrn make_caps:near,dispone:near,display:near,query:near
315 extrn quit:near,make_cntrl:near,scanln:near,scaneof:near
316 extrn fndfirst:near,fndnext:near,replace:near,memerr:near
317 extrn xerror:near,bad_read:near,append:near
318 extrn nocom:near,pager:near,list:near,search_from_curr:near
319 extrn replac_from_curr:near,ewrite:near,wrt:near,delete:near
320
321
322 extrn filespec:byte ;an000;parser's filespec
323 extrn parse_switch_b:byte ;an000;result of switch scan
324
325 public std_printf,command,chkrange,comerr
326 ; exit from EDLIN
327
328 IF KANJI
329 extrn testkanj:near
330 ENDIF
331
332EDLIN:
333 JMP SHORT SIMPED
334
335std_printf proc near ;ac000;convert to proc
336
337 push dx
338 call printf
339 pop dx ;an000;balance the push
340 ret
341
342std_printf endp ;ac000;end proc
343
344NONAME:
345 MOV DX,OFFSET DG:NDNAME_ptr
346 JMP XERROR
347
348SIMPED:
349 mov org_ds,DS
350 push ax ;ac000;save for drive compare
351
352 push cs ;an000;exchange cs/es
353 pop es ;an000;
354
355 push cs ;an000;exchange cs/ds
356 pop ds ;an000;
357 assume ds:dg,es:dg ;an000;establish addressibility
358
359 MOV dg:ENDING,0
360 mov sp,stack
361 call EDLIN_DISP_GET ;an000;get current video
362 ; mode & set it to
363 ; text
364
365;=========================================================================
366; invoke PRE_LOAD_MESSAGE here. If the messages were not loaded we will
367; exit with an appropriate error message.
368;
369; Date : 6/14/87
370;=========================================================================
371
372 call PRE_LOAD_MESSAGE ;an000;invoke SYSLOADMSG
373; $if c ;an000;if the load was unsuccessful
374 JNC $$IF1
375 mov ah,exit ;an000;exit EDLIN. PRE_LOAD_MESSAGE
376 ; has said why we are exiting
377 mov al,00h ;an000
378 int 21h ;an000;exit
379; $endif ;an000;
380$$IF1:
381
382
383
384VERS_OK:
385;----- Check for valid drive specifier --------------------------------;
386
387 pop ax
388 OR AL,AL
389 JZ get_switch_char
390 MOV DX,OFFSET DG:BADDRV_ptr
391 JMP xerror
392get_switch_char:
393 MOV AX,(CHAR_OPER SHL 8) ;GET SWITCH CHARACTER
394 INT 21H
395 CMP DL,"/"
396 JNZ CMD_LINE ;IF NOT / , THEN NOT PC
397 MOV OPTCHAR,"/" ;IN PC, OPTION CHAR = /
398
399 IF KANJI
400 push ds ; SAVE! all regs destroyed on this
401 push es
402 push si ; call !!
403 mov ax,(ECS_call shl 8) or 00h ; get kanji lead tbl
404 int 21h
405assume ds:nothing
406assume es:nothing
407 mov word ptr [LBTbl],si
408 mov word ptr [LBTbl+2],ds
409 pop si
410 pop es
411 pop ds
412assume ds:dg
413assume es:dg
414 ENDIF
415
416
417CMD_LINE:
418 push cs
419 pop es
420 ASSUME ES:DG
421
422;----- Process any options ------------------------------------------;
423
424;=========================================================================
425; The system parser, called through PARSER_COMMAND, parses external
426; command lines. In the case of EDLIN we are looking for two parameters
427; on the command line.
428;
429; Parameter 1 - Filespec (REQUIRED)
430; Parameter 2 - \B switch (OPTIONAL)
431;
432; PARSER_COMMAND - exit_normal : ffffh
433; exit_error : not = ffffh
434;=========================================================================
435
436
437 call PARSER_COMMAND ;an000;invoke sysparse
438 ; DMS:6/11/87
439 cmp ax,nrm_parse_exit ;an000;was it a good parse
440; $if z ;an000;it was a good parse
441 JNZ $$IF3
442 call EDLIN_COMMAND ;an000;interface results
443 ; into EDLIN
444; $else ;an000;
445 JMP SHORT $$EN3
446$$IF3:
447 cmp ax,too_many ;an000;too many operands
448; $if z ;an000;we have too many
449 JNZ $$IF5
450 jmp badopt ;an000;say why and exit
451; $endif
452$$IF5:
453
454 cmp ax,op_missing ;an000;required parm missing
455; $if z ;an000;missing parm
456 JNZ $$IF7
457 jmp noname ;an000;say why and exit
458; $endif ;an000;
459$$IF7:
460
461 cmp ax,sw_missing ;an000;is it an invalid switch
462; $if z ;an000;invalid switch
463 JNZ $$IF9
464 jmp badopt ;an000;say why and exit
465; $endif ;an000;
466$$IF9:
467
468; $endif ;an000;
469$$EN3:
470
471;=========================================================================
472;======================= begin .BAK check ================================
473; Check for .BAK extension on the filename
474
475 push ds ;an000;save reg.
476 push cs ;an000;set up addressibility
477 pop ds ;an000;
478 assume ds:dg ;an000;
479
480 push ax ;an000;save reg.
481 mov ax,offset dg:path_name ;an000;point to path_name
482 add ax,[fname_len] ;an000;calculate end of path_name
483 mov si,ax ;an000;point to end of path_name
484 pop ax ;an000;restore reg.
485
486 MOV CX,4 ;compare 4 bytes
487 SUB SI,4 ;Point 4th to last char
488 MOV DI,OFFSET DG:BAK ;Point to string ".BAK"
489 REPE CMPSB ;Compare the two strings
490 pop ds
491 ASSUME DS:NOTHING
492 JNZ NOTBAK
493 JMP HAVBAK
494
495;======================= end .BAK check ==================================
496
497;======================= begin NOTBAK ====================================
498; we have a file without a .BAK extension, try to open it
499
500NOTBAK:
501 push ds
502 push cs
503 pop ds
504 ASSUME DS:DG
505
506;=========================================================================
507; implement EXTENDED OPEN
508;=========================================================================
509
510 push es ;an000;save reg.
511 mov bx,RW ;an000;open for read/write
512 mov cx,ATTR ;an000;file attributes
513 mov dx,RW_FLAG ;an000;action to take on open
514 mov di,0ffffh ;an000;nul parm list
515
516 call EXT_OPEN1 ;an000;open for R/W;DMS:6/10/87
517 pop es ;an000;restore reg.
518
519;=========================================================================
520 pop ds
521 ASSUME DS:NOTHING
522 JC CHK_OPEN_ERR ;an open error occurred
523 MOV RD_HANDLE,AX ;Save the handle
524
525 call Calc_Memory_Avail ;an000; dms;enough memory?
526
527 mov bx,RD_Handle ;an000; dms;set up for call
528 call Query_Extend_Attrib ;an000; dms;memory required?
529
530 cmp dx,cx ;an000; dms;enough memory for EA's?
531; $if b ;an000; dms;no
532 JNB $$IF12
533 call EA_Fail_Exit ;an000; dms;say why and exit
534; $endif ;an000; dms;
535$$IF12:
536
537 mov bx,RD_Handle ;an000; dms;set up for call
538 mov EA_Flag,True ;an000; dms;
539 call Get_Extended_Attrib ;an000; dms;get attribs
540
541 Jmp HavFil ;work with the opened file
542
543;======================= end NOTBAK ======================================
544
545Badopt:
546 MOV DX,OFFSET DG:OPT_ERR_ptr;Bad option specified
547 JMP XERROR
548
549;=========================================================================
550;
551; The open of the file failed. We need to figure out why and report the
552; correct message. The circumstances we can handle are:
553;
554; open returns pathnotfound => bad drive or file name
555; open returns toomanyopenfiles => too many open files
556; open returns access denied =>
557; chmod indicates read-only => cannot edit read only file
558; else => file creation error
559; open returns filenotfound =>
560; creat ok => close, delete, new file
561; creat fails => file creation error
562; else => file cre
563;
564
565CHK_OPEN_ERR:
566 cmp ax,error_path_not_found
567 jz BadDriveError
568 cmp ax,error_too_many_open_files
569 jz TooManyError
570 cmp ax,error_access_denied
571 jnz CheckFNF
572 push ds
573 push cs
574 pop ds
575 assume ds:dg
576 mov ax,(chmod shl 8)
577 MOV DX,OFFSET DG:PATH_NAME
578 int 21h
579 jc FileCreationError
580 test cx,attr_read_only
581 jz FileCreationError
582 jmp ReadOnlyError
583
584CheckFNF:
585 cmp ax,error_file_not_found
586 jnz FileCreationError
587;
588; Try to create the file to see if it is OK.
589;
590 push ds
591 push cs
592 pop ds
593 assume ds:dg
594;=========================================================================
595; implement EXTENDED OPEN
596;=========================================================================
597
598 mov bx,RW ;an000;open for read/write
599 mov cx,ATTR ;an000;file attributes
600 mov dx,CREAT_FLAG ;an000;action to take on open
601 mov di,0ffffh ;an000;null parm list
602 call EXT_OPEN1 ;an000;create file;DMS:6/10/87
603
604;=========================================================================
605
606 pop ds
607 assume ds:nothing
608 jc CreateCheck
609 mov bx,ax
610 mov ah,close
611 int 21h
612 push ds
613 push cs
614 pop ds
615 assume ds:dg
616 mov ah,unlink
617 MOV DX,OFFSET DG:PATH_NAME
618 int 21h
619 pop ds
620 assume ds:nothing
621 jc FileCreationError ; This should NEVER be taken!!!
622 MOV HAVEOF,0FFH ; Flag from a system 1.xx call
623 MOV fNew,-1
624 JMP HAVFIL
625
626CreateCheck:
627 cmp ax,error_access_denied
628 jnz BadDriveError
629DiskFull:
630 MOV DX,OFFSET DG:nodir_ptr
631 jmp xerror
632
633FileCreationError:
634 mov dx,offset dg:BCreat_PTR
635 jmp xerror
636
637ReadOnlyError:
638 MOV DX,OFFSET DG:RO_ERR_ptr
639 jmp xerror
640
641BadDriveError:
642 MOV DX,OFFSET DG:BADDRV_PTR
643 jmp xerror
644
645TooManyError:
646 MOV DX,OFFSET DG:TOO_MANY_ptr
647 jmp xerror
648
649
650CREAT_ERR:
651 CMP DELFLG,0
652 JNZ DiskFull
653 push cs
654 pop ds
655 CALL DELBAK
656 JMP MAKFIL
657
658HAVBAK:
659 MOV DX,OFFSET DG:NOBAK_ptr
660 JMP XERROR
661
662HAVFIL:
663 push cs
664 pop ds
665 ASSUME DS:DG
666 CMP fNew,0
667 JZ MakeBak
668 MOV DX,OFFSET DG:NEWFIL_ptr ; Print new file message
669 call std_printf
670MakeBak:
671 MOV SI,OFFSET DG:PATH_NAME
672 MOV CX,[FNAME_LEN]
673 PUSH CX
674 MOV DI,OFFSET DG:TEMP_PATH
675 REP MOVSB
676 DEC DI
677 MOV DX,DI
678 POP CX
679 MOV AL,"."
680 STD
681 REPNE SCASB
682 JZ FOUND_EXT
683 MOV DI,DX ;Point to last char in filename
684FOUND_EXT:
685 CLD
686 INC DI
687 MOV [EXT_PTR],DI
688 MOV SI,OFFSET DG:$$$FILE
689 MOV CX,5
690 REP MOVSB
691
692;Create .$$$ file to make sure directory has room
693MAKFIL:
694
695;=========================================================================
696; implement EXTENDED OPEN
697;=========================================================================
698
699 mov bx,RW ;an000;open for read/write
700 mov cx,ATTR ;an000;file attributes
701 mov dx,Creat_Open_Flag ;an000;action to take on open
702 cmp EA_Flag,True ;an000;EA_Buffer used?
703; $if e ;an000;yes
704 JNE $$IF14
705 mov di,offset dg:EA_Parm_List ;an000; point to buffer
706; $else ;an000;
707 JMP SHORT $$EN14
708$$IF14:
709 mov di,0ffffh ;an000;nul parm list
710; $endif ;an000;
711$$EN14:
712 call EXT_OPEN2 ;an000;create file;DMS:6/10/87
713
714;=========================================================================
715
716 JC CREAT_ERR
717 MOV [WRT_HANDLE],AX
718;
719; We determine the size of the available memory. Use the word in the PDB at
720; [2] to determine the number of paragraphs. Then truncate this to 64K at
721; most.
722;
723 push ds ;save ds for size calc
724 mov ds,[org_ds]
725 MOV CX,DS:[2]
726 MOV DI,CS
727 SUB CX,DI
728 CMP CX,1000h
729 JBE GotSize
730 MOV CX,0FFFh
731GotSize:
732 SHL CX,1
733 SHL CX,1
734 SHL CX,1
735 SHL CX,1
736 pop ds ;restore ds after size calc
737 DEC CX
738 MOV [LAST],CX
739 MOV DI,OFFSET DG:START
740 TEST fNew,-1
741 JNZ SAVEND
742 SUB CX,OFFSET DG:START ;Available memory
743 SHR CX,1 ;1/2 of available memory
744 MOV AX,CX
745 SHR CX,1 ;1/4 of available memory
746 MOV [ONE4TH],CX ;Save amount of 1/4 full
747 ADD CX,AX ;3/4 of available memory
748 MOV DX,CX
749 ADD DX,OFFSET DG:START
750 MOV [THREE4TH],DX ;Save pointer to 3/4 full
751 MOV DX,OFFSET DG:START
752SAVEND:
753 CLD
754 MOV BYTE PTR [DI],1AH
755 MOV [ENDTXT],DI
756 MOV BYTE PTR [COMBUF],128
757 MOV BYTE PTR [EDITBUF],255
758 MOV BYTE PTR [EOL],10
759 MOV [POINTER],OFFSET DG:START
760 MOV [CURRENT],1
761 MOV ParamCt,1
762 MOV [PARAM1],0 ;M004 Leave room in memory, was -1
763 TEST fNew,-1
764 JNZ COMMAND
765;
766; The above setting of PARAM1 to -1 causes this call to APPEND to try to read
767; in as many lines that will fit, BUT.... What we are doing is simulating
768; the user issuing an APPEND command, and if the user asks for more lines
769; than we get then an "Insufficient memory" error occurs. In this case we
770; DO NOT want this error, we just want as many lines as possible read in.
771; The twiddle of ENDING suppresses the memory error
772;
773 MOV BYTE PTR [ENDING],1 ;Suppress memory errors
774 CALL APPEND
775 MOV ENDING,0 ; restore correct initial value
776
777Break <Main command loop>
778
779;
780; Main read/parse/execute loop. We reset the stack all the time as there
781; are routines that JMP back here. Don't blame me; Tim Paterson write this.
782;
783COMMAND:
784 push cs ;an000;set up addressibility
785 pop ds ;an000;
786 push cs ;an000;
787 pop es ;an000;
788 assume ds:dg,es:dg ;an000;
789
790 MOV SP, STACK
791 MOV AX,(SET_INTERRUPT_VECTOR SHL 8) OR 23H
792 MOV DX,OFFSET DG:ABORTCOM
793 INT 21H
794 mov dx,offset dg:prompt_ptr
795 call std_printf
796 MOV DX,OFFSET DG:COMBUF
797 MOV AH,STD_CON_STRING_INPUT
798 INT 21H
799 MOV [COMLINE],OFFSET DG:COMBUF + 2
800 mov dx,offset dg:lf_ptr
801 call std_printf
802PARSE:
803 MOV [PARAM2],0
804 MOV [PARAM3],0
805 MOV [PARAM4],0
806 mov [fourth],0 ;reset the fourth parameter flag
807 MOV QFLG,0
808 MOV SI,[COMLINE]
809 MOV BP,OFFSET DG:PARAM1
810 XOR DI,DI
811CHKLP:
812 CALL GETNUM
813;
814; AL has first char after arg
815;
816 MOV ds:[BP+DI],DX
817 ADD DI,2
818
819 MOV ParamCt,DI ; set up count of parameters
820 SHR ParamCt,1 ; convert to index (1-based)
821
822 CALL SKIP1 ; skip to next parameter
823 CMP AL,"," ; is there a comma?
824 JZ CHKLP ; if so, then get another arg
825 DEC SI ; point at char next
826 CALL Kill_BL ; skip all blanks
827 CMP AL,"?" ; is there a ?
828 JNZ DISPATCH ; no, got command letter
829 MOV QFLG,-1 ; signal query
830 CALL Kill_BL
831DISPATCH:
832 CMP AL,5FH
833 JBE UPCASE
834 cmp al,"z"
835 ja upcase
836 AND AL,5FH
837UPCASE:
838 MOV DI,OFFSET DG:COMTAB
839 MOV CX,NUMCOM
840 REPNE SCASB
841 JNZ COMERR
842 SUB DI,1+OFFSET DG:COMTAB ; convert to index
843 MOV BX,DI
844 MOV AX,[PARAM2]
845 OR AX,AX
846 JZ PARMOK
847 CMP AX,[PARAM1]
848 JB COMERR ; Param. 2 must be >= param 1
849PARMOK:
850 MOV [COMLINE],SI
851 SHL BX,1
852 CALL [BX+TABLE]
853COMOVER:
854 MOV SI,[COMLINE]
855 CALL Kill_BL
856 CMP AL,0DH
857 JZ COMMANDJ
858 CMP AL,1AH
859 JZ DELIM
860 CMP AL,";"
861 JNZ NODELIM
862DELIM:
863 INC SI
864NODELIM:
865 DEC SI
866 MOV [COMLINE],SI
867 JMP PARSE
868
869COMMANDJ:
870 JMP COMMAND
871
872SKIP1:
873 DEC SI
874 CALL Kill_BL
875ret1: return
876
877Break <Range Checking and argument parsing>
878
879;
880; People call here. we need to reset the stack.
881; Inputs: BX has param1
882; Outputs: Returns if BX <= Param2
883;
884
885CHKRANGE:
886 CMP [PARAM2],0
887 retz
888 CMP BX,[PARAM2]
889 JBE RET1
890 POP DX ; clean up return address
891COMERR:
892 MOV DX,OFFSET DG:BADCOM_ptr
893COMERR1:
894 call std_printf
895 JMP COMMAND
896
897;
898; GetNum parses off 1 argument from the command line. Argument forms are:
899; nnn a number < 65536
900; +nnn current line + number
901; -nnn current line - number
902; . current line
903; # lastline + 1
904;
905;
906
907GETNUM:
908 CALL Kill_BL
909 cmp di,6 ;Is this the fourth parameter?
910 jne sk1
911 mov [fourth],1 ;yes, set the flag
912sk1:
913 CMP AL,"."
914 JZ CURLIN
915 CMP AL,"#"
916 JZ MAXLIN
917 CMP AL,"+"
918 JZ FORLIN
919 CMP AL,"-"
920 JZ BACKLIN
921 MOV DX,0
922 MOV CL,0 ;Flag no parameter seen yet
923NUMLP:
924 CMP AL,"0"
925 JB NUMCHK
926 CMP AL,"9"
927 JA NUMCHK
928 CMP DX,6553 ;Max line/10
929 JAE COMERR ;Ten times this is too big
930 MOV CL,1 ;Parameter digit has been found
931 SUB AL,"0"
932 MOV BX,DX
933 SHL DX,1
934 SHL DX,1
935 ADD DX,BX
936 SHL DX,1
937 CBW
938 ADD DX,AX
939 LODSB
940 JMP SHORT NUMLP
941NUMCHK:
942 CMP CL,0
943 retz
944 OR DX,DX
945 JZ COMERR ;Don't allow zero as a parameter
946 return
947
948CURLIN:
949 cmp [fourth],1 ;the fourth parameter?
950 je comerra ;yes, an error
951 MOV DX,[CURRENT]
952 LODSB
953 return
954MAXLIN:
955 cmp [fourth],1 ;the fourth parameter?
956 je comerra ;yes, an error
957 MOV DX,1
958 MOV AL,0Ah
959 PUSH DI
960 MOV DI,OFFSET DG:START
961 MOV CX,EndTxt
962 SUB CX,DI
963MLoop:
964 JCXZ MDone
965 REPNZ SCASB
966 JNZ MDone
967 INC DX
968 JMP MLoop
969MDone:
970 POP DI
971 LODSB
972 return
973FORLIN:
974 cmp [fourth],1 ;the fourth parameter?
975 je comerra ;yes, an error
976 CALL GETNUM
977 ADD DX,[CURRENT]
978 return
979BACKLIN:
980 cmp [fourth],1 ;the fourth parameter?
981 je comerra ;yes, an error
982 CALL GETNUM
983 MOV BX,[CURRENT]
984 SUB BX,DX
985 JA OkLin ; if negative or zero
986 MOV BX,1 ; use first line
987OkLin:
988 MOV DX,BX
989 return
990
991comerra:
992 jmp comerr
993
994Break <Dispatch Table>
995
996;-----------------------------------------------------------------------;
997; Careful changing the order of the next two tables. They are linked and
998; changes should be be to both.
999
1000COMTAB DB 13,";ACDEILMPQRSTW"
1001NUMCOM EQU $-COMTAB
1002
1003TABLE DW NOCOM ; Blank line
1004 DW NOCOM ; ;
1005 DW APPEND ; A(ppend)
1006 DW COPY ; C(opy)
1007 DW DELETE ; D(elete)
1008 DW ENDED ; E(xit)
1009 DW INSERT ; I(nsert)
1010 DW LIST ; L(ist)
1011 DW MOVE ; M(ove)
1012 DW PAGER ; P(age)
1013 DW QUIT ; Q(uit)
1014 dw replac_from_curr ; R(eplace)
1015 dw search_from_curr ; S(earch)
1016 DW MERGE ; T(merge)
1017 DW EWRITE ; W(rite)
1018
1019ERRORJ:
1020 JMP COMERR
1021ERROR1J:
1022 JMP COMERR1
1023
1024Break <Move and Copy commands>
1025
1026PUBLIC MOVE
1027MOVE:
1028 CMP ParamCt,3
1029 JNZ ERRORJ
1030 MOV BYTE PTR [MOVFLG],1
1031 JMP SHORT BLKMOVE
1032
1033PUBLIC COPY
1034COPY:
1035 CMP ParamCt,3
1036 JB ERRORJ
1037 MOV BYTE PTR [MOVFLG],0
1038;
1039; We are to move/copy a number of lines from one range to another.
1040;
1041; Memory looks like this:
1042;
1043; START: line 1
1044; ...
1045; pointer-> line n Current has n in it
1046; ...
1047; line m
1048; endtxt-> ^Z
1049;
1050; The algoritm is:
1051;
1052; Bounds check on args.
1053; set ptr1 and ptr2 to range before move
1054; set copysiz to number to move
1055; open up copysize * count for destination
1056; if destination is before ptr1 then
1057; add copysize * count to both ptrs
1058; while count > 0 do
1059; move from ptr1 to destination for copysize bytes
1060; count --
1061; if moving then
1062; move from ptr2 through end to ptr1
1063; set endtxt to last byte moved.
1064; set current, pointer to original destination
1065;
1066
1067BLKMOVE:
1068;
1069; Make sure that all correct arguments are specified.
1070;
1071 MOV BX,[PARAM3] ; get destination of move/copy
1072 OR BX,BX ; must be specified (non-0)
1073 MOV DX,OFFSET DG:DEST_ptr
1074 JZ ERROR1J ; is 0 => error
1075;
1076; get arg 1 (defaulting if necessary) and range check it.
1077;
1078 MOV BX,[PARAM1] ; get first argument
1079 OR BX,BX ; do we default it?
1080 JNZ NXTARG ; no, assume it is OK.
1081 MOV BX,[CURRENT] ; Defaults to the current line
1082 CALL CHKRANGE ; Make sure it is good.
1083 MOV [PARAM1],BX ; set it
1084NXTARG:
1085 CALL FINDLIN ; find first argument line
1086 JNZ ErrorJ ; line not found
1087 MOV [PTR_1],DI
1088;
1089; get arg 2 (defaulting if necessary) and range check it.
1090;
1091 MOV BX,[PARAM2] ; Get the second parameter
1092 OR BX,BX ; do we default it too?
1093 JNZ HAVARGS ; Nope.
1094 MOV BX,[CURRENT] ; Defaults to the current line
1095 MOV [PARAM2],BX ; Stash it away
1096HAVARGS:
1097 CALL FindLin
1098 JNZ ErrorJ ; line not found
1099 MOV BX,Param2
1100 INC BX ;Get pointer to line Param2+1
1101 CALL FINDLIN
1102 MOV [PTR_2],DI ;Save it
1103;
1104; We now have true line number arguments and pointers to the relevant places.
1105; ptr_1 points to beginning of region and ptr_2 points to first byte beyond
1106; that region.
1107;
1108; Check args for correct ordering of first two arguments
1109;
1110 mov dx,[param1]
1111 cmp dx,[param2]
1112 jbe havargs1 ; first must be <= second
1113 jmp comerr
1114havargs1:
1115;
1116; make sure that the third argument is not contained in the first range
1117;
1118 MOV DX,[PARAM3]
1119 CMP DX,[PARAM1] ; third must be <= first or
1120 JBE NOERROR
1121 CMP DX,[PARAM2]
1122 JA NoError ; third must be > last
1123 JMP ComErr
1124NOERROR:
1125;
1126; Determine number to move
1127;
1128 MOV CX,Ptr_2
1129 SUB CX,Ptr_1 ; Calculate number of bytes to copy
1130 MOV CopySiz,CX
1131 MOV CopyLen,CX ; Save for individual move.
1132 MOV AX,[PARAM4] ; Was count defaulted?
1133 OR AX,AX
1134 JZ SizeOk ; yes, CX has correct value
1135 MUL [COPYSIZ] ; convert to true size
1136 MOV CX,AX ; move to count register
1137 OR DX,DX ; overflow?
1138 JZ SizeOK ; no
1139 JMP MEMERR ; yes, bomb.
1140SizeOK:
1141 MOV [COPYSIZ],CX
1142;
1143; Check to see that we have room to grow by copysiz
1144;
1145 MOV AX,[ENDTXT] ; get pointer to last byte
1146 MOV DI,[LAST] ; get offset of last location in memory
1147 SUB DI,AX ; remainder of space
1148 CMP DI,CX ; is there at least copysiz room?
1149 JAE HAV_ROOM ; yes
1150 JMP MEMERR
1151HAV_ROOM:
1152;
1153; Find destination of move/copy
1154;
1155 MOV BX,[PARAM3]
1156 CALL FINDLIN
1157 MOV [PTR_3],DI
1158;
1159; open up copysiz bytes of space at destination
1160;
1161; move (p3, p3+copysiz, endtxt-p3);
1162;
1163 MOV SI,EndTxt ; get source pointer to end
1164 MOV CX,SI
1165 SUB CX,DI ; number of bytes from here to end
1166 INC CX ; remember ^Z at end
1167 MOV DI,SI ; destination starts at end
1168 ADD DI,[COPYSIZ] ; plus size we are opening
1169 MOV [ENDTXT],DI ; new end point
1170 STD ; go backwards
1171 REP MOVSB ; and store everything
1172 CLD ; go forward
1173;
1174; relocate ptr_1 and ptr_2 if we moved them
1175;
1176 MOV BX,Ptr_3
1177 CMP BX,Ptr_1 ; was dest before source?
1178 JA NoReloc ; no, above. no relocation
1179 MOV BX,CopySiz
1180 ADD Ptr_1,BX
1181 ADD Ptr_2,BX ; relocate pointers
1182NoReloc:
1183;
1184; Now we copy for count times copylen bytes from ptr_1 to ptr_3
1185;
1186; move (ptr_1, ptr_3, copylen);
1187;
1188 MOV BX,Param4 ; count (0 and 1 are both 1)
1189 MOV DI,Ptr_3 ; destination
1190CopyText:
1191 MOV CX,CopyLen ; number to move
1192 MOV SI,Ptr_1 ; start point
1193 REP MOVSB ; move the bytes
1194 SUB BX,1 ; exhaust count?
1195 JG CopyText ; no, go for more
1196;
1197; If we are moving
1198;
1199 CMP BYTE PTR MovFlg,0
1200 JZ CopyDone
1201;
1202; Delete the source text between ptr_1 and ptr_2
1203;
1204; move (ptr_2, ptr_1, endtxt-ptr_2);
1205;
1206 MOV DI,Ptr_1 ; destination
1207 MOV SI,Ptr_2 ; source
1208 MOV CX,EndTxt ; pointer to end
1209 SUB CX,SI ; number of bytes to move
1210 CLD ; forwards
1211 REP MOVSB
1212 MOV BYTE PTR ES:[DI],1Ah ; remember ^Z terminate
1213 MOV EndTxt,DI ; new end of file
1214;
1215; May need to relocate current line (parameter 3).
1216;
1217 MOV BX,Param3 ; get new current line
1218 CMP BX,Param1 ; do we need to relocate
1219 JBE CopyDone ; no, current line is before removed M002
1220 ADD BX,Param1 ; add in first
1221 SUB BX,Param2 ; current += first-last - 1;
1222 DEC BX
1223 MOV Param3,BX
1224CopyDone:
1225;
1226; we are done. Make current line the destination
1227;
1228 MOV BX,Param3 ; set parameter 3 to be current
1229 CALL FINDLIN
1230 MOV [POINTER],DI
1231 MOV [CURRENT],BX
1232 return
1233
1234Break <MoveFile - open up a hole in the internal file>
1235
1236;
1237; MoveFile moves the text in the buffer to create a hole
1238;
1239; Inputs: DX is spot in buffer for destination
1240; DI is spot in buffer for source
1241MOVEFILE:
1242 MOV CX,[ENDTXT] ;Get End-of-text marker
1243 MOV SI,CX
1244 SUB CX,DI ;Calculate number of bytes to copy
1245 INC CX ; remember ^Z
1246 MOV DI,DX
1247 STD
1248 REP MOVSB ;Copy CX bytes
1249 XCHG SI,DI
1250 CLD
1251 INC DI
1252 MOV BP,SI
1253SETPTS:
1254 MOV [POINTER],DI ;Current line is first free loc
1255 MOV [CURRENT],BX ; in the file
1256 MOV [ENDTXT],BP ;End-of-text is last free loc before
1257 return
1258
1259NAMERR:
1260 cmp ax,error_file_not_found
1261 jne otherMergeErr
1262 MOV DX,OFFSET DG:FILENM_ptr
1263 JMP COMERR1
1264
1265otherMergeErr:
1266 MOV DX,OFFSET DG:BADDRV_ptr
1267 JMP COMERR1
1268
1269PUBLIC MERGE
1270MERGE:
1271 CMP ParamCt,1
1272 JZ MergeOK
1273 JMP Comerr
1274MergeOK:
1275 CALL KILL_BL
1276 DEC SI
1277 MOV DI,OFFSET DG:MRG_PATH_NAME
1278 XOR CX,CX
1279 CLD
1280MRG1:
1281 LODSB
1282 CMP AL," "
1283 JE MRG2
1284 CMP AL,9
1285 JE MRG2
1286 CMP AL,CR
1287 JE MRG2
1288 CMP AL,";"
1289 JE MRG2
1290 STOSB
1291 JMP SHORT MRG1
1292MRG2:
1293 MOV BYTE PTR[DI],0
1294 DEC SI
1295 MOV [COMLINE],SI
1296
1297;=========================================================================
1298; implement EXTENDED OPEN
1299;=========================================================================
1300
1301 push es ;an000;save reg.
1302 mov bx,ext_read ;an000;open for read
1303 mov cx,ATTR ;an000;file attributes
1304 mov dx,OPEN_FLAG ;an000;action to take on open
1305 mov di,0ffffh ;an000;null parm list
1306 call EXT_OPEN3 ;an000;create file;DMS:6/10/87
1307 pop es ;an000;restore reg.
1308
1309;=========================================================================
1310
1311 JC NAMERR
1312
1313 MOV [MRG_HANDLE],AX
1314 MOV AX,(SET_INTERRUPT_VECTOR SHL 8) OR 23H
1315 MOV DX,OFFSET DG:ABORTMERGE
1316 INT 21H
1317 MOV BX,[PARAM1]
1318 OR BX,BX
1319 JNZ MRG
1320 MOV BX,[CURRENT]
1321 CALL CHKRANGE
1322MRG:
1323 CALL FINDLIN
1324 MOV BX,DX
1325 MOV DX,[LAST]
1326 CALL MOVEFILE
1327 MOV DX,[POINTER]
1328 MOV CX,[ENDTXT]
1329 SUB CX,[POINTER]
1330 PUSH CX
1331 MOV BX,[MRG_HANDLE]
1332 MOV AH,READ
1333 INT 21H
1334 POP DX
1335 MOV CX,AX
1336 CMP DX,CX
1337 JA FILEMRG ; M005
1338 MOV DX,OFFSET DG:MRGERR_ptr
1339 call std_printf
1340 MOV CX,[POINTER]
1341 JMP SHORT RESTORE
1342FILEMRG:
1343 ADD CX,[POINTER]
1344 MOV SI,CX
1345 dec si
1346 LODSB
1347 CMP AL,1AH
1348 JNZ RESTORE
1349 dec cx
1350RESTORE:
1351 MOV DI,CX
1352 MOV SI,[ENDTXT]
1353 INC SI
1354 MOV CX,[LAST]
1355 SUB CX,SI
1356 inc cx ; remember ^Z
1357 REP MOVSB
1358 dec di ; unremember ^Z
1359 MOV [ENDTXT],DI
1360 MOV BX,[MRG_HANDLE]
1361 MOV AH,CLOSE
1362 INT 21H
1363 return
1364
1365PUBLIC INSERT
1366INSERT:
1367 CMP ParamCt,1
1368 JBE OKIns
1369 JMP ComErr
1370OKIns:
1371 MOV AX,(SET_INTERRUPT_VECTOR SHL 8) OR 23H ;Set vector 23H
1372 MOV DX,OFFSET DG:ABORTINS
1373 INT 21H
1374 MOV BX,[PARAM1]
1375 OR BX,BX
1376 JNZ INS
1377 MOV BX,[CURRENT]
1378 CALL CHKRANGE
1379INS:
1380 CALL FINDLIN
1381 MOV BX,DX
1382 MOV DX,[LAST]
1383 CALL MOVEFILE
1384INLP:
1385 CALL SETPTS ;Update the pointers into file
1386 CALL SHOWNUM
1387 MOV DX,OFFSET DG:EDITBUF
1388 MOV AH,STD_CON_STRING_INPUT
1389 INT 21H
1390 CALL LF
1391 MOV SI,2 + OFFSET DG:EDITBUF
1392 CMP BYTE PTR [SI],1AH
1393 JZ ENDINS
1394;-----------------------------------------------------------------------
1395 call unquote ;scan for quote chars if any
1396;-----------------------------------------------------------------------
1397 MOV CL,[SI-1]
1398 MOV CH,0
1399 MOV DX,DI
1400 INC CX
1401 ADD DX,CX
1402 JC MEMERRJ1
1403 JZ MEMERRJ1
1404 CMP DX,BP
1405 JB MEMOK
1406MEMERRJ1:
1407 CALL END_INS
1408 JMP MEMERR
1409MEMOK:
1410 REP MOVSB
1411 MOV AL,10
1412 STOSB
1413 INC BX
1414 JMP SHORT INLP
1415
1416ABORTMERGE:
1417 MOV DX,OFFSET DG:START
1418 MOV AH,SET_DMA
1419 INT 21H
1420
1421ABORTINS:
1422 MOV AX,CS ;Restore segment registers
1423 MOV DS,AX
1424 MOV ES,AX
1425 MOV AX,CSTACK
1426 MOV SS,AX
1427 MOV SP,STACK
1428 STI
1429 CALL CRLF
1430 CALL ENDINS
1431 JMP COMOVER
1432
1433ENDINS:
1434 CALL END_INS
1435 return
1436
1437END_INS:
1438 MOV BP,[ENDTXT]
1439 MOV DI,[POINTER]
1440 MOV SI,BP
1441 INC SI
1442 MOV CX,[LAST]
1443 SUB CX,BP
1444 REP MOVSB
1445 DEC DI
1446 MOV [ENDTXT],DI
1447 MOV AX,(SET_INTERRUPT_VECTOR SHL 8) OR 23H
1448 MOV DX,OFFSET DG:ABORTCOM
1449 INT 21H
1450 return
1451
1452
1453FILLBUF:
1454 MOV [PARAM1],-1 ;Read in max. no of lines
1455 MOV ParamCt,1
1456 CALL APPEND
1457 MOV Param1,0
1458PUBLIC ENDED
1459ENDED:
1460
1461;Write text out to .$$$ file
1462
1463 CMP ParamCt,1
1464 JZ ENDED1
1465CERR: JMP ComErr
1466Ended1:
1467 CMP Param1,0
1468 JNZ Cerr
1469 MOV BYTE PTR [ENDING],1 ;Suppress memory errors
1470 MOV BX,-1 ;Write max. no of lines
1471 CALL WRT
1472 TEST BYTE PTR [HAVEOF],-1
1473 JZ FILLBUF
1474 MOV DX,[ENDTXT]
1475 MOV CX,1
1476 MOV BX,[WRT_HANDLE]
1477 MOV AH,WRITE
1478 INT 21H ;Write end-of-file byte
1479
1480;Close input file ; MZ 11/30
1481 ; MZ 11/30
1482 MOV BX,[RD_HANDLE] ; MZ 11/30
1483 MOV AH,CLOSE ; MZ 11/30
1484 INT 21H ; MZ 11/30
1485
1486;Close .$$$ file
1487
1488 MOV BX,[WRT_HANDLE]
1489 MOV AH,CLOSE
1490 INT 21H
1491
1492;Rename original file .BAK
1493
1494 MOV DI,[EXT_PTR]
1495 MOV SI,OFFSET DG:BAK
1496 MOVSW
1497 MOVSW
1498 MOVSB
1499 MOV DX,OFFSET DG:PATH_NAME
1500 MOV DI,OFFSET DG:TEMP_PATH
1501 MOV AH,RENAME
1502 INT 21H
1503 MOV DI,[EXT_PTR]
1504 MOV SI,OFFSET DG:$$$FILE
1505 MOVSW
1506 MOVSW
1507 MOVSB
1508
1509;Rename .$$$ file to original name
1510
1511 MOV DX,OFFSET DG:TEMP_PATH
1512 MOV DI,OFFSET DG:PATH_NAME
1513 MOV AH,RENAME
1514 INT 21H
1515 ; mode
1516 mov ah,exit
1517 xor al,al
1518 int 21h
1519
1520;=========================================================================
1521; EDLIN_DISP_GET: This routine will give us the attributes of the
1522; current display, which are to be used to restore the screen
1523; back to its original state on exit from EDLIN. We also
1524; set the screen to a text mode here with an 80 X 25 color
1525; format.
1526;
1527; Inputs : VIDEO_GET - 0fH (get current video mode)
1528; VIDEO_SET - 00h (set video mode)
1529; VIDEO_TEXT- 03h (80 X 25 color mode)
1530;
1531; Outputs : VIDEO_ORG - Original video attributes on entry to EDLIN
1532;
1533;=========================================================================
1534
1535EDLIN_DISP_GET proc near ;an000;video attributes
1536
1537 push ax ;an000;save affected regs.
1538 push bx ;an000;
1539 push cx ;an000;
1540 push dx ;an000;
1541 push si ;an000;
1542 push ds ;an000;
1543
1544 push cs ;an000;exchange cs/ds
1545 pop ds ;an000;
1546
1547 mov ax,440Ch ;an000;generic ioctl
1548 mov bx,Std_Out ;an000;Console
1549 mov cx,(Display_Attr shl 8) or Get_Display ;an000;get display
1550 mov dx,offset dg:Video_Buffer ;an000;buffer for video attr.
1551 int 21h ;an000;
1552; $if nc ;an000;function returned a
1553 JC $$IF17
1554 ; buffer
1555 mov si,dx ;an000;get pointer
1556 mov ax,word ptr dg:[si].Display_Length_Char ;an000;get video len.
1557 dec ax ;an000;allow room for message
1558 mov dg:Disp_Len,al ;an000;put it into var.
1559 mov ax,word ptr dg:[si].Display_Width_Char ;an000;get video width
1560 mov dg:Disp_Width,al ;an000;put it into var.
1561; $else ;an000;function failed use
1562 JMP SHORT $$EN17
1563$$IF17:
1564 ; default values
1565 mov al,Def_Disp_Len ;an000;get default length
1566 dec al ;an000;leave room for messages
1567 mov dg:Disp_Len,al ;an000;use default length
1568 mov dg:Disp_Width,Def_Disp_Width;an000;use default width
1569; $endif ;an000;
1570$$EN17:
1571
1572 pop ds ;an000;restore affected regs.
1573 pop si ;an000;
1574 pop dx ;an000;
1575 pop cx ;an000;
1576 pop bx ;an000;
1577 pop ax ;an000;
1578
1579 ret ;an000;return to caller
1580
1581EDLIN_DISP_GET endp ;an000;end proc.
1582
1583
1584;=========================================================================
1585; EXT_OPEN1 : This routine opens a file for read/write access. If the file
1586; if not present for opening the open will fail and return with a
1587; carry set.
1588;
1589; Inputs : BX - Open mode
1590; CX - File attributes
1591; DX - Open action
1592;
1593; Outputs: CY - If error
1594;
1595; Date : 6/10/87
1596;=========================================================================
1597
1598EXT_OPEN1 proc near ;an000;open for R/W
1599
1600 assume ds:dg
1601 push ds ;an000;save regs
1602 push si ;an000;
1603
1604 mov ah,ExtOpen ;an000;extended open
1605 mov al,0 ;an000;reserved by system
1606 mov si,offset dg:path_name ;an000;point to PATH_NAME
1607
1608 int 21h ;an000;invoke function
1609 pop si ;an000;restore regs
1610 pop ds ;an000;
1611
1612 ret ;an000;return to caller
1613
1614EXT_OPEN1 endp ;an000;end proc.
1615
1616;=========================================================================
1617; EXT_OPEN2 : This routine will attempt to create a file for read/write
1618; access. If the files exists the create will fail and return
1619; with the carry set.
1620;
1621; Inputs : BX - Open mode
1622; CX - File attributes
1623; DX - Open action
1624;
1625; Outputs: CY - If error
1626;
1627; Date : 6/10/87
1628;=========================================================================
1629
1630EXT_OPEN2 proc near ;an000;create a file
1631
1632 assume ds:dg
1633 push ds ;an000;save regs
1634 push si ;an000;
1635
1636 mov ah,ExtOpen ;an000;extended open
1637 mov al,0 ;an000;reserved by system
1638 mov si,offset dg:temp_path ;an000;point to TEMP_PATH
1639
1640 int 21h ;an000;invoke function
1641
1642 pop si ;an000;restore regs
1643 pop ds ;an000;
1644
1645 ret ;an000;return to caller
1646
1647EXT_OPEN2 endp ;an000;end proc.
1648
1649;=========================================================================
1650; EXT_OPEN3 : This routine will attempt to create a file for read
1651; access. If the files exists the create will fail and return
1652; with the carry set.
1653;
1654; Inputs : BX - Open mode
1655; CX - File attributes
1656; DX - Open action
1657;
1658; Outputs: CY - If error
1659;
1660; Date : 6/10/87
1661;=========================================================================
1662
1663EXT_OPEN3 proc near ;an000;create a file
1664
1665 assume ds:dg
1666 push ds ;an000;save regs
1667 push si ;an000;
1668
1669 mov ah,ExtOpen ;an000;extended open
1670 mov al,0 ;an000;reserved by system
1671 mov si,offset dg:mrg_path_name ;an000;point to mrg_path_name
1672
1673 int 21h ;an000;invoke function
1674
1675 pop si ;an000;restore regs
1676 pop ds ;an000;
1677
1678 ret ;an000;return to caller
1679
1680EXT_OPEN3 endp ;an000;end proc.
1681
1682
1683;=========================================================================
1684; EDLIN_COMMAND : This routine provides an interface between the new
1685; parser and the existing logic of EDLIN. We will be
1686; interfacing the parser with three existing variables.
1687;
1688; Inputs : FILESPEC - Filespec entered by the user and passed by
1689; the parser.
1690;
1691; PARSE_SWITCH_B - Contains the result of the parse for the
1692; /B switch. This is passed by the parser.
1693;
1694; Outputs: PATH_NAME - Filespec
1695; LOADMOD - Flag for /B switch
1696; FNAME_LEN - Length of filespec
1697;
1698; Date : 6/11/87
1699;=========================================================================
1700
1701EDLIN_COMMAND proc near ;an000;interface parser
1702
1703 push ax ;an000;save regs.
1704 push cx ;an000;
1705 push di ;an000
1706 push si ;an000;
1707
1708 mov si,offset dg:filespec ;an000;get its offset
1709 mov di,offset dg:path_name ;an000;get its offset
1710
1711 mov cx,00h ;an000;cx will count filespec
1712 ; length
1713 cmp parse_switch_b,true ;an000;do we have /B switch
1714; $if z ;an000;we have the switch
1715 JNZ $$IF20
1716 mov [LOADMOD],01h ;an000;signal switch found
1717; $endif ;an000
1718$$IF20:
1719
1720; $do ;an000;while we have filespec
1721$$DO22:
1722 lodsb ;an000;move byte to al
1723 cmp al,nul ;an000;see if we are at
1724 ; the end of the
1725 ; filespec
1726; $leave e ;an000;exit while loop
1727 JE $$EN22
1728 stosb ;an000;move byte to path_name
1729 inc cx ;an000;increment the length
1730 ; of the filespec
1731; $enddo ;an000;end do while
1732 JMP SHORT $$DO22
1733$$EN22:
1734
1735 mov [FNAME_LEN],cx ;an000;save filespec's length
1736
1737 pop si ;an000; restore regs
1738 pop di ;an000;
1739 pop cx ;an000;
1740 pop ax ;an000;
1741
1742 ret ;an000;return to caller
1743
1744EDLIN_COMMAND endp ;an000;end proc
1745
1746;=========================================================================
1747; Get_Extended_Attrib : This routine gets the extended attributes of
1748; the file that was opened.
1749;
1750;=========================================================================
1751
1752Get_Extended_Attrib proc near ;an000; dms;
1753
1754 mov ax,5702h ;an000; dms;get extended attrib
1755 mov si,0ffffh ;an000; dms;all attribs
1756 mov cx,dg:EA_Buffer_Size ;an000; dms;buffer size
1757 mov di,offset dg:Start ;an000; dms;point to buffer
1758 int 21h ;an000; dms;
1759 ret ;an000; dms;
1760
1761Get_Extended_Attrib endp ;an000; dms;
1762
1763
1764;=========================================================================
1765; Query_Extend_Attrib : This routine gets the extended attributes of
1766; the file that was opened.
1767;
1768; Inputs : Start - Buffer for extended attributes
1769;
1770; Outputs : CX - size in paras
1771;
1772;=========================================================================
1773
1774Query_Extend_Attrib proc near ;an000; dms;
1775
1776 mov ax,5702h ;an000; dms;get extended attrib
1777 mov si,0ffffh ;an000; dms;all attribs
1778 mov cx,0000h ;an000; dms;get buffer size
1779 mov di,offset dg:Start ;an000; dms;point to buffer
1780 int 21h ;an000; dms;
1781 mov dg:EA_Buffer_Size,cx ;an000; dms;save buffer size
1782 ret ;an000; dms;
1783
1784Query_Extend_Attrib endp ;an000; dms;
1785
1786
1787;=========================================================================
1788; Calc_Memory_Avail : This routine will calculate the memory
1789; available for use by EDLIN.
1790;
1791; Inputs : ORG_DS - DS of PSP
1792;
1793; Outputs : DX - paras available
1794;=========================================================================
1795
1796Calc_Memory_Avail proc near ;an000; dms;
1797
1798 push ds ;save ds for size calc
1799 push cx ;an000; dms;
1800 push di ;an000; dms;
1801
1802 mov ds,cs:[org_ds]
1803 MOV CX,DS:[2]
1804 MOV DI,CS
1805 SUB CX,DI
1806 mov dx,cx ;an000; dms;put paras in DX
1807
1808 pop di ;an000; dms;
1809 pop cx ;an000; dms;
1810 pop ds ;an000; dms;
1811
1812 ret ;an000; dms;
1813
1814Calc_Memory_Avail endp ;an000; dms;
1815
1816;=========================================================================
1817; EA_Fail_Exit : This routine tells the user that there was
1818; Insufficient memory and exits EDLIN.
1819;
1820; Inputs : MemFul_Ptr - "Insufficient memory"
1821;
1822; Outputs : message
1823;=========================================================================
1824
1825EA_Fail_Exit proc near ;an000; dms;
1826
1827 mov dx,offset dg:MemFul_Ptr ;an000; dms;"Insufficient
1828
1829 push cs ;an000; dms;xchange ds/cs
1830 pop ds ;an000; dms;
1831 ; memory"
1832 call Std_Printf ;an000; dms;print message
1833 mov ah,exit ;an000; dms;exit
1834 xor al,al ;an000; dms;clear al
1835 int 21h ;an000; dms;
1836 ret ;an000; dms;
1837
1838EA_Fail_Exit endp ;an000; dms;
1839
1840CODE ENDS
1841 END EDLIN
1842
1843 \ No newline at end of file
diff --git a/v4.0/src/CMD/EDLIN/EDLIN.LNK b/v4.0/src/CMD/EDLIN/EDLIN.LNK
new file mode 100644
index 0000000..8b90da5
--- /dev/null
+++ b/v4.0/src/CMD/EDLIN/EDLIN.LNK
@@ -0,0 +1,7 @@
1EDLIN+
2EDLCMD1+
3EDLCMD2+
4EDLMES+
5EDLPARSE
6EDLIN.EXE;
7 \ No newline at end of file
diff --git a/v4.0/src/CMD/EDLIN/EDLIN.SKL b/v4.0/src/CMD/EDLIN/EDLIN.SKL
new file mode 100644
index 0000000..ff5109e
--- /dev/null
+++ b/v4.0/src/CMD/EDLIN/EDLIN.SKL
@@ -0,0 +1,75 @@
1;======================= START OF SPECIFICATIONS =========================
2;
3; MODULE NAME: EDLMES.FIL
4;
5; DESCRIPTIVE NAME: EDLIN MESSAGES
6;
7; FUNCTION: PROVIDES A SET OF MESSAGES FOR EDLIN.
8;
9; ENTRY POINT: NA
10;
11; INPUT: NA
12;
13; EXIT NORMAL: NA
14;
15; EXIT ERROR: NA
16;
17; INTERNAL REFERENCES: NA
18;
19; EXTERNAL REFERENCES: NA
20;
21;
22; NOTES: THIS MODULE IS TO BE PREPPED BY FASTBLD.EXE.
23;
24; REVISION HISTORY:
25;
26; VERSION 4.00 - CREATED FOR DOS 4.00
27;
28;======================= END OF SPECIFICATIONS ===========================
29
30;=========================================================================
31; edlin utility message file
32;=========================================================================
33
34:util EDLIN ;utility name
35:class 1
36
37:class A ;system messages
38:use 1 COMMON1 ;"Incorrect DOS version",CR,LF
39:use 2 COMMON2 ;"Insufficient memory",CR,LF
40:use 3 COMMON3 ;"Error loading messages",CR,LF
41
42:class B ;utility messages
43:def 6 "*" ;prompt_ptr
44:def 7 "Invalid drive or file name",CR,LF ;baddrv_ptr
45:def 8 "File name must be specified",CR,LF ;ndname_ptr
46:def 10 "File is READ-ONLY",CR,LF ;ro_err_ptr
47:def 11 "File Creation Error",CR,LF ;bcreat_ptr
48:def 12 "Too many files open",CR,LF ;too_many_ptr
49:def 13 "Read error in:",CR,LF,"%1",CR,LF ;read_err_ptr
50:def 14 "Cannot edit .BAK file--rename file",CR,LF ;nobak_ptr
51:def 15 "No room in directory for file",CR,LF ;nodir_ptr
52:def 16 "Disk full. Edits lost.",CR,LF ;dskful_ptr
53:def 18 "Entry error",CR,LF ;badcom_ptr
54:def 19 "New file",CR,LF ;newfil_ptr
55:def 20 "Not found",CR,LF ;nosuch_ptr
56
57:class C ;utility messages
58:def 21 "O.K.? " ;ask_ptr
59:def 22 "Line too long",CR,LF ;toolng_ptr
60:def 23 "End of input file",CR,LF ;eof_ptr
61:def 24 "Abort edit (Y/N)? " ;qmes_ptr
62:def 25 "Must specify destination line number",CR,LF ;dest_ptr
63:def 26 "Not enough room to merge the entire file",CR,LF ;mrgerr_ptr
64:def 27 CR,LF ;crlf_ptr
65:def 28 LF ;lf_ptr
66:def 29 "Continue (Y/N)?" ;cont_ptr
67:def 30 "Unable to print message",CR,LF ;fatal_error
68:def 31 "%1" ;arg_buf_ptr
69:def 32 "%1:%2" ;line_num_buf_ptr
70:def 33 "Cannot merge - Code page mismatch",CR,LF ;cp_err_ptr
71
72:end
73
74;=========================================================================
75;=========================================================================
diff --git a/v4.0/src/CMD/EDLIN/EDLMES.ASM b/v4.0/src/CMD/EDLIN/EDLMES.ASM
new file mode 100644
index 0000000..889a044
--- /dev/null
+++ b/v4.0/src/CMD/EDLIN/EDLMES.ASM
@@ -0,0 +1,665 @@
1 PAGE 60,132;
2 title EDLIN Messages
3;======================= START OF SPECIFICATIONS =========================
4;
5; MODULE NAME: EDLMES.SAL
6;
7; DESCRIPTIVE NAME: MESSAGE RETRIEVER INTERFACE MODULE
8;
9; FUNCTION: THIS MODULE PROVIDES AN INTERFACE FOR THE MODULES THAT ARE
10; NEEDED TO INVOKE THE MESSAGE RETRIEVER.
11;
12; ENTRY POINT: PRINTF
13;
14; INPUT: OFFSET CARRIED IN DX TO APPLICABLE MESSAGE TABLE
15;
16; EXIT NORMAL: NO CARRY
17;
18; EXIT ERROR : CARRY
19;
20; INTERNAL REFERENCES:
21;
22; ROUTINE: PRINTF - PROVIDES THE ORIGINAL INTERFACE FOR THE ORIGINAL
23; PRINTF USED PRIOR TO VERSION 4.00. PRINTS MESSAGES.
24;
25; DISP_MESSAGE - BUILDS THE REGISTERS NECESSARY FOR INVOCATION
26; OF THE MESSAGE RETRIEVER, BASED ON THE TABLE
27; POINTED TO BY DX.
28;
29; DISP_FATAL - INVOKED IF AN ERROR OCCURS (CARRY) IN THE
30; MESSAGE RETRIEVER. IT DISPLAYS THE APPROPRIATE
31; MESSAGE.
32;
33; EXTERNAL REFERENCES:
34;
35; ROUTINE: SYSLOADMSG - LOAD MESSAGES FOR THE MESSAGE RETRIEVER
36; SYSDISPMSG - DISPLAYS THE REQUESTED MESSAGE
37;
38; NOTES: THIS MODULE IS TO BE PREPPED BY SALUT WITH THE "PR" OPTIONS
39; LINK EDLIN+EDLCMD1+EDLCMD2+EDLMES+EDLPARSE
40;
41; REVISION HISTORY:
42;
43; AN000 VERSION DOS 4.00 - IMPLEMENTATION OF MESSAGE RETRIEVER
44;
45; COPYRIGHT: "MS DOS EDLIN UTILITY"
46; "VERSION 4.00 (C) COPYRIGHT 1988 Microsoft"
47; "LICENSED MATERIAL - PROPERTY OF Microsoft "
48;
49; MICROSOFT REVISION HISTORY
50;
51; MODIFIED BY: AARON R
52; M.A. U
53; N. P
54;======================= END OF SPECIFICATIONS ===========================
55
56.xlist
57
58include sysmsg.inc ;an000;message retriever
59
60msg_utilname <EDLIN> ;an000;EDLIN messages
61.list
62;-----------------------------------------------------------------------;
63; ;
64; Done for Vers 2.00 (rev 9) by Aaron R ;
65; Update for rev. 11 by M.A. U ;
66; Printf for 2.5 by Nancy P ;
67; ;
68;-----------------------------------------------------------------------;
69
70;=========================================================================
71; revised edlmes.asm
72;=========================================================================
73
74fatal_error equ 30 ;an000;fatal message handler
75unlim_width equ 00h ;an000;unlimited output width
76pad_blank equ 20h ;an000;blank pad
77pre_load equ 00h ;an000;normal pre-load
78
79
80
81message_table struc ;an000;struc for message table
82
83 entry1 dw 0 ;an000;message number
84 entry2 db 0 ;an000;message type
85 entry3 dw 0 ;an000;display handle
86 entry4 dw 0 ;an000;pointer to sublist
87 entry5 dw 0 ;an000;substitution count
88 entry6 db 0 ;an000;use keyb input?
89 entry7 dw 0 ;an000;keyb buffer to use
90
91message_table ends ;an000;end struc
92
93;=========================================================================
94; macro disp_message: this macro takes a pointer to a message table
95; and displays the applicable message based on
96; the table's contents.
97; this is to provide an interface into the module
98; of the message retriever, SYSDISPMSG.
99;
100; Date : 6/11/87
101;=========================================================================
102
103disp_message macro tbl ;an000;display message macro
104
105 push bx ;an000;
106 push cx ;an000;
107 push dx ;an000;
108 push di ;an000;
109 push si ;an000;
110
111 push tbl ;an000;exchange tbl with si
112 pop si ;an000;exchanged
113
114 mov ax,[si].entry1 ;an000;move message number
115 mov bx,[si].entry3 ;an000;display handle
116 mov cx,[si].entry5 ;an000;number of subs
117 mov dl,[si].entry6 ;an000;function type
118 mov di,[si].entry7 ;an000;input buffer if appl.
119 mov dh,[si].entry2 ;an000;message type
120 mov si,[si].entry4 ;an000;sublist
121
122 call sysdispmsg ;an000;display the message
123
124 pop si ;an000;restore affected regs
125 pop di ;an000;
126 pop dx ;an000;
127 pop cx ;an000;
128 pop bx ;an000;
129
130endm ;an000;end macro disp_message
131
132;=========================================================================
133; macro disp_message: end macro
134;=========================================================================
135
136CODE SEGMENT PUBLIC BYTE
137CODE ENDS
138
139CONST SEGMENT PUBLIC BYTE
140CONST ENDS
141
142cstack segment stack
143cstack ends
144
145DATA SEGMENT PUBLIC BYTE
146
147 extrn path_name:byte
148
149DATA ENDS
150
151DG GROUP CODE,CONST,cstack,DATA
152
153code segment public byte ;an000;code segment
154 assume cs:dg,ds:dg,es:dg,ss:CStack ;an000;
155
156 public printf ;an000;share printf
157 public disp_fatal ;an000;fatal error display
158 public pre_load_message ;an000;message loader
159
160.xlist
161msg_services <MSGDATA> ;an000;
162.list
163
164;======================= sysmsg.inc invocation ===========================
165;
166; include sysmsg.inc - message retriever services
167;
168;
169; options selected:
170; NEARmsg
171; DISPLAYmsg
172; LOADmsg
173; CHARmsg
174; NUMmsg
175; CLSAmsg
176; CLSBmsg
177; CLSCmsg
178;
179;=========================================================================
180
181.xlist
182
183 msg_services <LOADmsg> ;an000;no version check
184 msg_services <DISPLAYmsg,CHARmsg,NUMmsg,INPUTmsg> ;an000;display messages
185 msg_services <EDLIN.CLA,EDLIN.CLB,EDLIN.CLC> ;an000;message types
186 msg_services <EDLIN.CL1,EDLIN.CL2> ;an000;message types
187 msg_services <EDLIN.CTL> ;an000;
188
189.list
190
191;=========================================================================
192; printf: printf is a replacement of the printf procedure used in DOS
193; releases prior to 4.00. printf invokes the macro disp_message
194; to display a message through the new message handler. the
195; interface into printf will continue to be a pointer to a message
196; passed in DX. the pointer is pointing to more than a message
197; now. it is pointing to a table for that message containing
198; all relevant information for printing the message. the macro
199; disp_message operates on these tables.
200;
201; Date : 6/11/87
202;=========================================================================
203
204printf proc near ;an000;printf procedure
205
206 disp_message dx ;an000;display a message
207; $if c ;an000;if an error occurred
208 JNC $$IF1
209 call disp_fatal ;an000;display the fatal error
210; $endif ;an000;
211$$IF1:
212
213 ret ;an000;return to caller
214
215printf endp ;an000;end printf proc
216
217
218;=========================================================================
219; disp_fatal: this routine displays a fatal error message in the event
220; an error occurred in disp_message.
221;
222; Date : 6/11/87
223;=========================================================================
224
225disp_fatal proc near ;an000;fatal error message
226
227 mov ax,fatal_error ;an000;fatal_error number
228 mov bx,stdout ;an000;print to console
229 mov cx,0 ;an000;no parameters
230 mov dl,no_input ;an000;no keyboard input
231 mov dh,UTILITY_MSG_CLASS ;an000;utility messages
232
233 call sysdispmsg ;an000;display fatal error
234
235 ret ;an000;return to caller
236
237disp_fatal endp ;an000;end disp_fatal proc
238
239;=========================================================================
240; PRE_LOAD_MESSAGE : This routine provides access to the messages required
241; by EDLIN. This routine will report if the load was
242; successful. An unsuccessful load will cause EDLIN
243; to terminate with an appropriate error message.
244;
245; Date : 6/11/87
246;=========================================================================
247
248PRE_LOAD_MESSAGE proc near ;an000;pre-load messages
249
250
251 call SYSLOADMSG ;an000;invoke loader
252
253; $if c ;an000;if an error
254 JNC $$IF3
255 pushf ;an000;save flags
256 call SYSDISPMSG ;an000;let him say why
257 popf ;an000;restore flags
258; $endif ;an000;
259$$IF3:
260
261 ret ;an000;return to caller
262
263PRE_LOAD_MESSAGE endp ;an000;end proc
264
265include msgdcl.inc
266
267code ends ;an000;end code segment
268
269
270
271
272CONST SEGMENT PUBLIC BYTE
273
274 extrn arg_buf:byte ;an000;
275 extrn line_num:byte ;an000;
276 extrn line_flag:byte ;an000;
277 extrn Temp_Path:byte ;an000;
278
279 public baddrv_ptr,bad_vers_err,opt_err_ptr,nobak_ptr
280 public too_many_ptr,dskful_ptr,memful_ptr,badcom_ptr
281 public nodir_ptr,filenm_ptr,newfil_ptr,read_err_ptr
282 public nosuch_ptr,toolng_ptr,eof_ptr,dest_ptr
283 public mrgerr_ptr,ro_err_ptr,bcreat_ptr,ndname_ptr
284 public ask_ptr,qmes_ptr,crlf_ptr,lf_ptr,yes_byte
285 public prompt_ptr
286 public line_num_buf_ptr ;an000;DMS:6/15/87
287 public arg_buf_ptr ;an000;DMS:6/15/87
288 public cont_ptr ;an000;DMS:6/18/87
289 public cp_err_ptr ;an000;DMS:6/22/87
290 public Del_Bak_Ptr ;an000;dms;
291
292 yes_byte db "y"
293
294;============== REPLACEABLE PARAMETER SUBLIST STRUCTURE ==================
295;
296; byte 1 - substitution list size, always 11
297; byte 2 - reserved for use by message handler
298; byte 3 - pointer to parameter to be used as a substitution
299; byte 7 - which parameter is this to replace, %1, %2, etc.
300; byte 8 - determines how the parameter is to be output
301; byte 9 - determines the maximum width of the parameter string
302; byte 10 - determines the minimum width of the parameter string
303; byte 11 - define what is to be used as a pad character
304;
305;=========================================================================
306
307;=========================================================================
308; replaceable parameter sublists
309;=========================================================================
310
311ed_read_sub label dword ;an000;a read error occurred
312
313 db 11 ;an000;sublist size
314 db 00 ;an000;reserved
315 dd dg:path_name ;an000;pointer to parameter
316 db 01 ;an000;parm 1
317 db Char_Field_ASCIIZ ;an000;left align/asciiz/char.
318 db unlim_width ;an000;unlimited width
319 db 00 ;an000;minimum width of 0
320 db pad_blank ;an000;pad with blanks
321
322arg_sub label dword ;an000;line output buffer
323
324 db 11 ;an000;sublist size
325 db 00 ;an000;reserved
326 dd dg:arg_buf ;an000;pointer to parameter
327 db 01 ;an000;parm 1
328 db Char_Field_ASCIIZ ;an000;left align/asciiz/char.
329 db unlim_width ;an000;unlimited width
330 db 00 ;an000;minimum width of 0
331 db pad_blank ;an000;pad with blank
332
333num_sub label dword ;an000;line number
334
335 db 11 ;an000;sublist size
336 db 00 ;an000;reserved
337 dd dg:line_num ;an000;pointer to parameter
338 db 01 ;an000;parm 1
339 db Right_Align+Unsgn_Bin_Word ;an000;right align/decimal
340 db 08 ;an000;maximum width
341 db 08 ;an000;minimum width of 0
342 db pad_blank ;an000;pad with blank
343
344 db 11 ;an000;optional flag
345 db 00 ;an000;reserved
346 dd dg:line_flag ;an000;pointer to parameter
347 db 02 ;an000;parm 2
348 db Char_Field_Char ;an000;character
349 db 01 ;an000;minimum width of 1
350 db 01 ;an000;maximum width of 1
351 db pad_blank ;an000;pad with blank
352
353BAK_Sub label dword ;an000;line output buffer
354
355 db 11 ;an000;sublist size
356 db 00 ;an000;reserved
357 dd dg:Temp_Path ;an000;pointer to parameter
358 db 00 ;an000;parm 0
359 db Char_Field_ASCIIZ ;an000;left align/asciiz/char.
360 db unlim_width ;an000;unlimited width
361 db 00 ;an000;minimum width of 0
362 db pad_blank ;an000;pad with blank
363
364
365;=========================================================================
366; end replaceable parameter sublists
367;=========================================================================
368
369;======================= TABLE STRUCTURE =================================
370;
371; bute 1-2 : message number of message to be displayed
372; byte 3 : message type to be used, i.e.;class 1, utility, etc.
373; byte 4-5 : display handle, i.e.; console, printer, etc.
374; byte 6-7 : pointer to substitution list, if any.
375; byte 8-9 : number of replaceable parameters, if any.
376; byte 10 : type of input from keyboard, if any.
377; byte 11-12: pointer to buffer for keyboard input, if any.
378;
379;=========================================================================
380
381
382bad_vers_err label word ;an000;"Incorrect DOS version"
383 dw 0001 ;an000;message number
384 db UTILITY_MSG_CLASS ;an000;utility message
385 dw stdout ;an000;display handle
386 dw 00 ;an000;no sublist
387 dw 00 ;an000;no sub
388 db no_input ;an000;no keyboard input
389 dw 00 ;an000;no keyboard buffer
390
391prompt_ptr label word ;an000;"*",0
392 dw 0006 ;an000;message number
393 db UTILITY_MSG_CLASS ;an000;utility message
394 dw stdout ;an000;display handle
395 dw 00 ;an000;no sublist
396 dw 00 ;an000;no sub
397 db no_input ;an000;no keyboard input
398 dw 00 ;an000;no keyboard buffer
399
400
401baddrv_ptr label word ;an000;"Invalid drive or file name"
402 ;an000;,0d,0a,0
403 dw 0007 ;an000;message number
404 db UTILITY_MSG_CLASS ;an000;utility message
405 dw stdout ;an000;display handle
406 dw 00 ;an000;no sublist
407 dw 00 ;an000;no sub
408 db no_input ;an000;no keyboard input
409 dw 00 ;an000;no keyboard buffer
410
411ndname_ptr label word ;an000;"File name must be
412 ;an000;specified",0d,0a,0
413 dw 0008 ;an000;message number
414 db UTILITY_MSG_CLASS ;an000;utility message
415 dw stdout ;an000;display handle
416 dw 00 ;an000;no sublist
417 dw 00 ;an000;no sub
418 db no_input ;an000;no keyboard input
419 dw 00 ;an000;no keyboard buffer
420
421opt_err_ptr label word ;an000;"Invalid parameter",0d,0a,0
422 dw 0010 ;an000;message number
423 db Parse_Err_Class ;an000;utility message
424 dw StdErr ;an000;display handle
425 dw 00 ;an000;no sublist
426 dw 00 ;an000;no sub
427 db no_input ;an000;no keyboard input
428 dw 00 ;an000;no keyboard buffer
429
430ro_err_ptr label word ;an000;"File is READ-ONLY",0d,0a,0
431 dw 0010 ;an000;message number
432 db UTILITY_MSG_CLASS ;an000;utility message
433 dw stdout ;an000;display handle
434 dw 00 ;an000;no sublist
435 dw 00 ;an000;no sub
436 db no_input ;an000;no keyboard input
437 dw 00 ;an000;no keyboard buffer
438
439bcreat_ptr label word ;an000;"File Creation Error",0d,0a,0
440 dw 0011 ;an000;message number
441 db UTILITY_MSG_CLASS ;an000;utility message
442 dw stdout ;an000;display handle
443 dw 00 ;an000;no sublist
444 dw 00 ;an000;no sub
445 db no_input ;an000;no keyboard input
446 dw 00 ;an000;no keyboard buffer
447
448too_many_ptr label word ;an000;"Too many files open",0d,0a,0
449 dw 0012 ;an000;message number
450 db UTILITY_MSG_CLASS ;an000;utility message
451 dw stdout ;an000;display handle
452 dw 00 ;an000;no sublist
453 dw 00 ;an000;no sub
454 db no_input ;an000;no keyboard input
455 dw 00 ;an000;no keyboard buffer
456
457read_err_ptr label word ;an000;"Read error in:",
458 ;an000;0d,0a,"%1",0d,0a,0
459 dw 0013 ;an000;message number
460 db UTILITY_MSG_CLASS ;an000;utility message
461 dw stdout ;an000;display handle
462 dw dg:ed_read_sub ;an000;point to sublist
463 dw 0001 ;an000;1 sub
464 db no_input ;an000;no keyboard input
465 dw 00 ;an000;no keyboard buffer
466
467
468nobak_ptr label word ;an000;"Cannot edit .BAK file
469 ;an000;--rename file",0d,0a,0
470 dw 0014 ;an000;message number
471 db UTILITY_MSG_CLASS ;an000;utility message
472 dw stdout ;an000;display handle
473 dw 00 ;an000;no sublist
474 dw 00 ;an000;no sub
475 db no_input ;an000;no keyboard input
476 dw 00 ;an000;no keyboard buffer
477
478nodir_ptr label word ;an000;"No room in directory
479 ;an000;for file",0d,0d,0
480 dw 0015 ;an000;message number
481 db UTILITY_MSG_CLASS ;an000;utility message
482 dw stdout ;an000;display handle
483 dw 00 ;an000;no sublist
484 dw 00 ;an000;no sub
485 db no_input ;an000;no keyboard input
486 dw 00 ;an000;no keyboard buffer
487
488dskful_ptr label word ;an000;"Disk full. Edits lost.",0d,0a,0
489 dw 0016 ;an000;message number
490 db UTILITY_MSG_CLASS ;an000;utility message
491 dw stdout ;an000;display handle
492 dw 00 ;an000;no sublist
493 dw 00 ;an000;no sub
494 db no_input ;an000;no keyboard input
495 dw 00 ;an000;no keyboard buffer
496
497memful_ptr label word ;an000;"Insufficient memory",0d,0a,0
498 dw 0008 ;an000;message number
499 db Ext_Err_Class ;an000;extended error
500 dw stderr ;an000;display handle
501 dw 00 ;an000;no sublist
502 dw 00 ;an000;no sub
503 db no_input ;an000;no keyboard input
504 dw 00 ;an000;no keyboard buffer
505
506filenm_ptr label word ;an000;"File not found",0d,0a
507 dw 0002 ;an000;message number
508 db Ext_Err_Class ;an000;utility message
509 dw stderr ;an000;display handle
510 dw 00 ;an000;no sublist
511 dw 00 ;an000;no sub
512 db no_input ;an000;no keyboard input
513 dw 00 ;an000;no keyboard buffer
514
515badcom_ptr label word ;an000;"Entry error",0d,0a,0
516 dw 0018 ;an000;message number
517 db UTILITY_MSG_CLASS ;an000;utility message
518 dw stdout ;an000;display handle
519 dw 00 ;an000;no sublist
520 dw 00 ;an000;no sub
521 db no_input ;an000;no keyboard input
522 dw 00 ;an000;no keyboard buffer
523
524newfil_ptr label word ;an000;"New file",0d,0a,0
525 dw 0019 ;an000;message number
526 db UTILITY_MSG_CLASS ;an000;utility message
527 dw stdout ;an000;display handle
528 dw 00 ;an000;no sublist
529 dw 00 ;an000;no sub
530 db no_input ;an000;no keyboard input
531 dw 00 ;an000;no keyboard buffer
532
533nosuch_ptr label word ;an000;"Not found",0d,0a,0
534 dw 0020 ;an000;message number
535 db UTILITY_MSG_CLASS ;an000;utility message
536 dw stdout ;an000;display handle
537 dw 00 ;an000;no sublist
538 dw 00 ;an000;no sub
539 db no_input ;an000;no keyboard input
540 dw 00 ;an000;no keyboard buffer
541
542ask_ptr label word ;an000;"O.K.? ",0
543 dw 0021 ;an000;message number
544 db UTILITY_MSG_CLASS ;an000;utility message
545 dw stdout ;an000;display handle
546 dw 00 ;an000;no sublist
547 dw 00 ;an000;no sub
548 db DOS_KEYB_INP ;an000;keyboard input - AX
549 dw 00 ;an000;no keyboard buffer
550
551toolng_ptr label word ;an000;"Line too long",0d,0a,0
552 dw 0022 ;an000;message number
553 db UTILITY_MSG_CLASS ;an000;utility message
554 dw stdout ;an000;display handle
555 dw 00 ;an000;no sublist
556 dw 00 ;an000;no sub
557 db no_input ;an000;no keyboard input
558 dw 00 ;an000;no keyboard buffer
559
560eof_ptr label word ;an000;"End of input file",0d,0a,0
561 dw 0023 ;an000;message number
562 db UTILITY_MSG_CLASS ;an000;utility message
563 dw stdout ;an000;display handle
564 dw 00 ;an000;no sublist
565 dw 00 ;an000;no sub
566 db no_input ;an000;no keyboard input
567 dw 00 ;an000;no keyboard buffer
568
569qmes_ptr label word ;an000;"Abort edit (Y/N)? ",0
570 dw 0024 ;an000;message number
571 db UTILITY_MSG_CLASS ;an000;utility message
572 dw stdout ;an000;display handle
573 dw 00 ;an000;no sublist
574 dw 00 ;an000;no sub
575 db DOS_KEYB_INP ;an000;keyboard input - AX
576 dw 00 ;an000;no keyboard buffer
577
578dest_ptr label word ;an000;"Must specify destination
579 ;an000;line number",0d,0a,0
580 dw 0025 ;an000;message number
581 db UTILITY_MSG_CLASS ;an000;utility message
582 dw stdout ;an000;display handle
583 dw 00 ;an000;no sublist
584 dw 00 ;an000;no sub
585 db no_input ;an000;no keyboard input
586 dw 00 ;an000;no keyboard buffer
587
588mrgerr_ptr label word ;an000;"Not enough room to
589 ;an000;merge the entire file",0d,0a,0
590 dw 0026 ;an000;message number
591 db UTILITY_MSG_CLASS ;an000;utility message
592 dw stdout ;an000;display handle
593 dw 00 ;an000;no sublist
594 dw 00 ;an000;no sub
595 db no_input ;an000;no keyboard input
596 dw 00 ;an000;no keyboard buffer
597
598crlf_ptr label word ;an000;0d,0a,0
599 dw 0027 ;an000;message number
600 db UTILITY_MSG_CLASS ;an000;utility message
601 dw stdout ;an000;display handle
602 dw 00 ;an000;no sublist
603 dw 00 ;an000;no sub
604 db no_input ;an000;no keyboard input
605 dw 00 ;an000;no keyboard buffer
606
607lf_ptr label word ;an000;0a,0
608 dw 0028 ;an000;message number
609 db UTILITY_MSG_CLASS ;an000;utility message
610 dw stdout ;an000;display handle
611 dw 00 ;an000;no sublist
612 dw 00 ;an000;no sub
613 db no_input ;an000;no keyboard input
614 dw 00 ;an000;no keyboard buffer
615
616cont_ptr label word ;an000;"Continue (Y/N)?"
617 dw 0029 ;an000;message number
618 db UTILITY_MSG_CLASS ;an000;utility message
619 dw stdout ;an000;display handle
620 dw 00 ;an000;no sublist
621 dw 00 ;an000;no sub
622 db DOS_KEYB_INP ;an000;keyboard input
623 dw 00 ;an000;no keyboard buffer
624
625arg_buf_ptr label word ;an000;argument buffer for
626 ; line output
627 dw 0031 ;an000;message number
628 db UTILITY_MSG_CLASS ;an000;utility message
629 dw stdout ;an000;display handle
630 dw dg:arg_sub ;an000;argument sublist
631 dw 01 ;an000;1 sub
632 db no_input ;an000;no keyboard input
633 dw 00 ;an000;no keyboard buffer
634
635line_num_buf_ptr label word ;an000;holds line numbers
636 dw 0032 ;an000;message number
637 db UTILITY_MSG_CLASS ;an000;utility message
638 dw stdout ;an000;display handle
639 dw dg:num_sub ;an000;argument sublist
640 dw 02 ;an000;2 subs
641 db no_input ;an000;no keyboard input
642 dw 00 ;an000;no keyboard buffer
643
644cp_err_ptr label word ;an000;"Cannot merge - Code page
645 ; mismatch",0d,0a
646 dw 0033 ;an000;message number
647 db UTILITY_MSG_CLASS ;an000;utility message
648 dw stdout ;an000;display handle
649 dw 00 ;an000;no sublist
650 dw 00 ;an000;no subs
651 db no_input ;an000;no keyboard input
652 dw 00 ;an000;no keyboard buffer
653
654del_bak_ptr label word ;an000;"Access Denied - xxxxxxxx.BAK"
655 dw 0005 ;an000;message number
656 db Ext_Err_Class ;an000;utility message
657 dw stderr ;an000;display handle
658 dw dg:BAK_Sub ;an000;no sublist
659 dw 01 ;an000;no subs
660 db no_input ;an000;no keyboard input
661 dw 00 ;an000;no keyboard buffer
662
663CONST ENDS
664 END
665 \ No newline at end of file
diff --git a/v4.0/src/CMD/EDLIN/EDLPARSE.ASM b/v4.0/src/CMD/EDLIN/EDLPARSE.ASM
new file mode 100644
index 0000000..32f6f4c
--- /dev/null
+++ b/v4.0/src/CMD/EDLIN/EDLPARSE.ASM
@@ -0,0 +1,281 @@
1
2 page 60,132;
3 title EDLPARSE for EDLIN
4
5
6;******************* START OF SPECIFICATIONS *****************************
7;
8; MODULE NAME: EDLPARSE.SAL
9;
10; DESCRIPTIVE NAME: PARSES THE EXTERNAL COMMAND LINE FOR EDLIN
11;
12; FUNCTION: THIS ROUTINE PROVIDES PARSING CAPABILITIES FOR THE
13; EXTERNAL COMMAND LINE OF EDLIN. IT PARSES FOR THE PRESENCE
14; OF A REQUIRED FILESPEC AND AN OPTIONAL SWITCH (/B).
15;
16; ENTRY POINT: PARSER_COMMAND
17;
18; INPUT: DOS COMMAND LINE
19;
20; EXIT NORMAL: AX = 0FFH - VALID SWITCH AND FILESPEC SPECIFIED
21;
22; EXIT ERROR: AX NOT= 0FFH - INVALID SWITCH OR NO FILESPEC SPECIFIED
23;
24; INTERNAL REFERENCES
25;
26; ROUTINE: PARSER_COMMAND - THIS ROUTINE PARSES FOR THE PRESENCE
27; OF THE /B SWITCH AND A FILESPEC. THE
28; FILEPSEC IS REQUIRED, WHILE THE SWITCH
29; IS OPTIONAL.
30;
31; EXTERNAL REFERENCES:
32;
33; ROUTINE: PARSE.ASM - THIS IS THE PARSER CODE.
34;
35; NOTES: THIS MODULE IS TO BE PREPPED BY SALUT WITH THE "PR" OPTIONS.
36; LINK EDLIN+EDLCMD1+EDLCMD2+EDLMES+EDLPARSE
37;
38; REVISION HISTORY:
39;
40; AN000 VERSION 4.00 - IMPLEMENTS THE SYSTEM PARSER (SYSPARSE)
41;
42; COPYRIGHT: "THE IBM PERSONAL COMPUTER EDLIN UTILITY"
43; "VERSION 4.00 (C) COPYRIGHT 1988"
44; "LICENSED MATERIAL - PROPERTY OF Microsoft"
45;
46;
47;******************** END OF SPECIFICATIONS ******************************
48
49
50;======================= equates for edlparse ============================
51
52parse_ok equ 0 ;an000;good parse return
53parse_command equ 081h ;an000;offset of command line
54nul equ 0 ;an000;nul
55fs_flag equ 05h ;an000;filespec found
56sw_flag equ 03h ;an000;switch found
57true equ 0ffffh ;an000;true
58false equ 00h ;an000;false
59too_many equ 01h ;an000;too many parms
60
61;======================= end equates =====================================
62
63
64CODE SEGMENT PUBLIC BYTE
65CODE ENDS
66
67CONST SEGMENT PUBLIC BYTE
68CONST ENDS
69
70cstack segment stack
71cstack ends
72
73DATA SEGMENT PUBLIC BYTE
74
75 extrn path_name:byte
76 extrn org_ds:word ;an000; dms;
77
78 public parse_switch_b ;an000;parse switch result
79 public filespec ;an000;actual filespec
80
81;======================= input parameters control blocks =================
82; these control blocks are used by sysparse and must be pointed to by
83; es:di on invocation.
84
85 public parms ;an000;share parms
86parms label byte ;an000;parms control block
87 dw dg:parmsx ;an000;point to parms structure
88 db 00h ;an000;no additional delims.
89
90parmsx label byte ;an000;parameter types
91 db 1,1 ;an000;must have filespec
92 dw dg:fs_pos ;an000;filespec control block
93 db 1 ;an000;max. number of switches
94 dw dg:sw_b ;an000;\b switch control block
95 db 00h ;an000;no keywords
96
97;======================= filespec positional tables ======================
98
99fs_pos label byte ;an000;filespec positional
100 dw 0200h ;an000;filespec/not optional
101 dw 0001h ;an000;cap
102 dw dg:filespec_res ;an000;filespec result table
103 dw dg:noval ;an000;value list/none
104 db 0 ;an000;no keyword/switch syns.
105
106filespec_res label byte ;an000;filespec result table
107parse_fs_res db ? ;an000;must be filespec (05)
108parse_fs_tag db ? ;an000;item tag
109parse_fs_syn dw ? ;an000;synonym pointer
110parse_fs_off dw ? ;an000;offset to filespec
111parse_fs_seg dw ? ;an000;segment of filespec
112
113;======================= switch tables /b ================================
114
115sw_b label byte ;an000;/b switch
116 dw 0000h ;an000;no match flags
117 dw 0000h ;an000;no cap
118 dw dg:switch_res ;an000;result buffer
119 dw dg:noval ;an000;value list/none
120 db 1 ;an000;1 switch
121sw_b_switch db "/B",0 ;an000;/B means ignore CTL-Z
122
123switch_res label byte ;an000;switch result table
124parse_sw_res db ? ;an000;must be string (03)
125parse_sw_tag db ? ;an000;item tag
126parse_sw_syn dw ? ;an000;synonym pointer
127parse_sw_ptr dd ? ;an000;pointer to result
128
129noval label byte ;an000;value table
130 db 0 ;an000;no values
131
132
133;======================= end input parameter control blocks ==============
134
135filespec db 128 dup (0) ;an000;holds filespec
136parse_switch_b db ? ;an000;hold boolean result
137 ; of /b parse
138parse_sw_b db "/B" ;an000;comparison switch
139
140DATA ENDS
141
142DG GROUP CODE,CONST,cstack,DATA
143
144code segment public byte ;an000;code segment
145 assume cs:dg,ds:dg,es:dg,ss:CStack ;an000;
146
147 public parser_command ;an000;share this routine
148
149
150
151;======================= begin main routine ==============================
152.xlist
153
154include parse.asm ;an000;parser
155
156.list
157
158parser_command proc near ;an000;parse routine
159
160 push es ;an000;save registers
161 push ds ;an000;
162 push di ;an000;
163 push si ;an000;
164
165 mov dg:parse_switch_b,false ;an000;init. to false
166 xor cx,cx ;an000;set cx to 0
167 xor dx,dx ;an000;set dx to 0
168 mov di,offset dg:parms ;an000;point to parms
169 mov si,parse_command ;an000;point to ds:81h
170 mov ds,dg:org_ds ;an000;get ds at entry
171 assume ds:nothing ;an000;
172
173parse_continue: ;an000;loop return point
174
175 call sysparse ;an000;invoke parser
176 cmp ax,parse_ok ;an000;is it a good parse
177 jne parse_end ;an000;continue on good parse
178 push si
179 mov si,dx
180 cmp byte ptr es:[si],fs_flag ;an000;do we have a filespec
181; $if e ;an000;yes we do
182 JNE $$IF1
183 call build_fs ;an000;save filespec
184; $else ;an000;
185 JMP SHORT $$EN1
186$$IF1:
187 cmp parse_switch_b,true ;an000;see if already set
188; $if nz ;an000;if not
189 JZ $$IF3
190 call val_sw ;an000;see which switch
191; $else ;an000;
192 JMP SHORT $$EN3
193$$IF3:
194 mov ax,too_many ;an000;set error level
195 jmp parse_end ;an000;exit parser
196; $endif ;an000;
197$$EN3:
198; $endif ;an000;
199$$EN1:
200
201 pop si
202 jmp parse_continue ;an000;continue parsing
203
204parse_end: ;an000;end parse routine
205
206 pop si ;an000;restore registers
207 pop di ;an000; for return to caller
208 pop ds ;an000;
209 assume ds:dg ;an000;
210 pop es ;an000;
211
212 ret ;an000;return to caller
213
214parser_command endp ;an000;end parser_command
215
216
217;======================= subroutine area =================================
218
219
220;=========================================================================
221; build_fs: This routine saves the filespec for use by the calling program.
222;=========================================================================
223
224build_fs proc near ;an000;save filespec
225
226 push ax ;an000;save affected regs.
227 push di ;an000;
228 push si ;an000;
229 push ds ;an000;
230 push es ;an000;
231
232 mov di,offset dg:filespec ;an000;point to filespec buffer
233 lds si,dword ptr es:parse_fs_off ;an000;get offset
234
235build_cont: ;an000;continue routine
236
237 lodsb ;an000;mov ds:si to al
238 cmp al,nul ;an000;is it end of filespec
239; $if nz ;an000;if not
240 JZ $$IF7
241 stosb ;an000;move byte to filespec
242 jmp build_cont ;an000;continue buffer fill
243; $endif ;an000;
244$$IF7:
245 stosb ;an000;save nul
246
247 pop es ;an000;restore regs
248 pop ds ;an000;
249 pop si ;an000;
250 pop di ;an000;
251 pop ax ;an000;
252
253 ret ;an000;return to caller
254
255build_fs endp ;an000;end proc
256
257;=========================================================================
258; val_sw : determines which switch we have.
259;=========================================================================
260
261val_sw proc near ;an000;switch determination
262
263 cmp es:parse_sw_syn,offset es:sw_b_switch ;an000;/B switch?
264; $if e ;an000;compare good
265 JNE $$IF9
266 mov dg:parse_switch_b,true ;an000;signal /B found
267; $else ;an000;
268 JMP SHORT $$EN9
269$$IF9:
270 mov dg:parse_switch_b,false ;an000;signal /B not found
271; $endif ;an000;
272$$EN9:
273
274 ret ;an000;return to caller
275
276val_sw endp ;an000;end proc
277
278
279code ends ;an000;end segment
280 end ;an000;
281 \ No newline at end of file
diff --git a/v4.0/src/CMD/EDLIN/EDLSTDSW.INC b/v4.0/src/CMD/EDLIN/EDLSTDSW.INC
new file mode 100644
index 0000000..436f09f
--- /dev/null
+++ b/v4.0/src/CMD/EDLIN/EDLSTDSW.INC
@@ -0,0 +1,32 @@
1; SCCSID = @(#)stdsw.asm 1.1 85/04/10
2; Use the switches below to produce the standard Microsoft version or the IBM
3; version of the operating system
4
5
6;include EDLVERS.INC ;IBM/MSVER/JAPVER switches
7
8
9WANG EQU FALSE
10Rainbow EQU FALSE
11
12
13; Set this switch to cause DOS to move itself to the end of memory
14HIGHMEM EQU FALSE
15
16 IF IBM
17ESCCH EQU 0 ; character to begin escape seq.
18CANCEL EQU 27 ;Cancel with ESCAPE
19TOGLPRN EQU TRUE ;One key toggles printer echo
20ZEROEXT EQU TRUE
21 ELSE
22 IF WANG ;Are we assembling for WANG?
23ESCCH EQU 1FH ;Yes. Use 1FH for escape character
24 ELSE
25ESCCH EQU 1BH
26 ENDIF
27CANCEL EQU "X"-"@" ;Cancel with Ctrl-X
28TOGLPRN EQU FALSE ;Separate keys for printer echo on
29 ;and off
30ZEROEXT EQU TRUE
31 ENDIF
32
diff --git a/v4.0/src/CMD/EDLIN/MAKEFILE b/v4.0/src/CMD/EDLIN/MAKEFILE
new file mode 100644
index 0000000..d01bbb1
--- /dev/null
+++ b/v4.0/src/CMD/EDLIN/MAKEFILE
@@ -0,0 +1,56 @@
1#************************** makefile for cmd\append ***************************
2
3msg =..\..\messages
4dos =..\..\dos
5inc =..\..\inc
6hinc =..\..\h
7
8#
9####################### dependencies begin here. #########################
10#
11
12all: edlin.com
13
14edlin.ctl: edlin.skl \
15 $(msg)\$(COUNTRY).msg \
16 makefile
17
18
19edlin.obj: edlin.asm edlequ.asm edlstdsw.inc makefile \
20 $(inc)\dossym.inc \
21 $(inc)\dosmac.inc $(inc)\bpb.inc $(inc)\buffer.inc \
22 $(inc)\sysvar.inc $(inc)\mult.inc $(inc)\dirent.inc \
23 $(inc)\dpb.inc $(inc)\curdir.inc $(inc)\cpmfcb.inc \
24 $(inc)\find.inc $(inc)\pdb.inc $(inc)\sf.inc $(inc)\arena.inc \
25 $(inc)\intnat.inc $(inc)\error.inc $(inc)\syscall.inc
26
27edlcmd1.obj: edlcmd1.asm edlequ.asm edlstdsw.inc makefile \
28 $(inc)\dossym.inc \
29 $(inc)\dosmac.inc $(inc)\bpb.inc $(inc)\buffer.inc \
30 $(inc)\sysvar.inc $(inc)\mult.inc $(inc)\dirent.inc \
31 $(inc)\dpb.inc $(inc)\curdir.inc $(inc)\cpmfcb.inc \
32 $(inc)\find.inc $(inc)\pdb.inc $(inc)\sf.inc $(inc)\arena.inc \
33 $(inc)\intnat.inc $(inc)\error.inc $(inc)\syscall.inc
34
35edlcmd2.obj: edlcmd2.asm edlequ.asm edlstdsw.inc makefile \
36 $(inc)\dossym.inc \
37 $(inc)\dosmac.inc $(inc)\bpb.inc $(inc)\buffer.inc \
38 $(inc)\sysvar.inc $(inc)\mult.inc $(inc)\dirent.inc \
39 $(inc)\dpb.inc $(inc)\curdir.inc $(inc)\cpmfcb.inc \
40 $(inc)\find.inc $(inc)\pdb.inc $(inc)\sf.inc $(inc)\arena.inc \
41 $(inc)\intnat.inc $(inc)\error.inc $(inc)\syscall.inc
42
43edlmes.obj: edlmes.asm $(inc)\sysmsg.inc makefile \
44 edlin.ctl \
45 edlin.cla \
46 edlin.clb \
47 edlin.cl1 \
48 edlin.cl2 \
49
50edlparse.obj: edlparse.asm $(inc)\parse.asm makefile
51
52edlin.com: edlin.obj edlcmd1.obj edlcmd2.obj edlmes.obj edlparse.obj \
53 edlin.lnk makefile
54 link @edlin.lnk
55 convert edlin.exe
56 del edlin.exe
HIC SVNT DRACONES