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BB-H138E-BM
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6-1-sources/linsert.bli
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%TITLE 'LINSERT - insert text'
MODULE LINSERT ( ! Insert text
IDENT = '3-005' ! File: LINSERT.BLI Edit: CJG3005
) =
BEGIN
!
! COPYRIGHT (c) 1981, 1985 BY
! DIGITAL EQUIPMENT CORPORATION, MAYNARD, MASS.
! ALL RIGHTS RESERVED.
!
! THIS SOFTWARE IS FURNISHED UNDER A LICENSE AND MAY BE USED AND COPIED
! ONLY IN ACCORDANCE WITH THE TERMS OF SUCH LICENSE AND WITH THE
! INCLUSION OF THE ABOVE COPYRIGHT NOTICE. THIS SOFTWARE OR ANY OTHER
! COPIES THEREOF MAY NOT BE PROVIDED OR OTHERWISE MADE AVAILABLE TO ANY
! OTHER PERSON. NO TITLE TO AND OWNERSHIP OF THE SOFTWARE IS HEREBY
! TRANSFERRED.
!
! THE INFORMATION IN THIS SOFTWARE IS SUBJECT TO CHANGE WITHOUT NOTICE
! AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY DIGITAL EQUIPMENT
! CORPORATION.
!
! DIGITAL ASSUMES NO RESPONSIBILITY FOR THE USE OR RELIABILITY OF ITS
! SOFTWARE ON EQUIPMENT WHICH IS NOT SUPPLIED BY DIGITAL.
!
!++
! FACILITY: EDT -- The DEC Standard Editor
!
! ABSTRACT:
!
! This module executes the line mode INSERT command.
! It also provides support for the insert part of the
! REPLACE command.
!
! ENVIRONMENT: Runs at any access mode - AST reentrant
!
! AUTHOR: Bob Kushlis, CREATION DATE: February 3, 1978
!
! MODIFIED BY:
!
! 1-001 - Original. DJS 30-JAN-81. This module was created by
! extracting routines INSERT and INS_COM from EXEC.BLI.
! 1-002 - Regularize headers. JBS 20-Mar-1981
! 1-003 - Change INS_COM to EDT$$INS_CMD . JBS 30-Mar-1981
! 1-004 - Do prompting from a global. JBS 23-Oct-1981
! 1-005 - Add error check for too many lines. SMB 5-Feb-1982
! 1-006 - Reset command buffer after EOF. STS 23-Jun-1982
! 1-007 - Add CRLF for EXT insert and replace commands. SMB 07-Jul-1982
! 1-008 - Change indentation for large line numbers. SMB 14-Jul-1982
! 1-009 - Use previous line size instead of current. SMB 15-Jul-1982
! 1-010 - Put code for edt$$rng_posfrst in line. STS 11-Oct-1982
! 1-011 - Use new macro for comparing line numbers. STS 20-Oct-1982
! 1-012 - Don't print CRLF unless we are coming from the terminal. JBS 19-Jan-1983
! 3-001 - Modify for the TOPS 20 parser. CJG 14-Mar-1983
! 3-002 - Add updates from V3 sources. GB 29-Apr-1983
! 3-003 - Prompts do not have leading <CR><LF>, and <CR><LF> needed before
! the call to EDT$$TY_CURLN. CJG 15-Jun-1983
! 3-004 - Fix a problem with journalling multicommand lines, especially INSERT\...
! CJG 10-Jan-1984
! 3-005 - Modify ASSERT macro to include error code. CJG 30-Jan-1984
!--
%SBTTL 'Declarations'
!
! TABLE OF CONTENTS:
!
REQUIRE 'EDTSRC:TRAROUNAM';
FORWARD ROUTINE
EDT$$INS_TXT : NOVALUE, ! Insert text
EDT$$INS_CMD : NOVALUE; ! Process the INSERT command
!
! INCLUDE FILES:
!
REQUIRE 'EDTSRC:EDTREQ';
!
! MACROS:
!
! NONE
!
! EQUATED SYMBOLS:
!
! NONE
!
! OWN STORAGE:
!
! NONE
!
! EXTERNAL REFERENCES:
!
! In the routines
%SBTTL 'EDT$$INS_TXT - insert text'
GLOBAL ROUTINE EDT$$INS_TXT ! Insert text for INSERT and REPLACE commands
: NOVALUE =
!++
! FUNCTIONAL DESCRIPTION:
!
! This routine handles the insertion of text from an INSERT or REPLACE
! command. If the current token from the parser is a '\', then the text
! to be inserted is the remainder of the command line. Otherwise, loop
! reading a line and inserting it until an end of file is detected.
!
! FORMAL PARAMETERS:
!
! NONE
!
! IMPLICIT INPUTS:
!
! CMD_END
! CMD_LEN
! CMD_PTR
! INP_SRC
! NOS
! PA_CURTOK
! PA_CURTOKLEN
! PMT_INS
! PMT_INSN
!
! IMPLICIT OUTPUTS:
!
! CMD_BUF
!
! ROUTINE VALUE:
!
! NONE
!
! SIDE EFFECTS:
!
! NONE
!
!--
BEGIN
EXTERNAL ROUTINE
EDT$$CMP_LNO,
EDT$$FMT_CRLF,
EDT$$TI_WRSTR,
EDT$$GET_LN,
EDT$$END_INS,
EDT$$INS_LN,
EDT$$START_INS,
EDT$$TI_BUFSTR, ! Save a journal record
EDT$$TI_FLUSHJOUFI, ! Write a journal record
EDT$$TY_CURLN; ! Type out the current line
EXTERNAL
WK_STARTNO : LN_BLOCK,
LNO0 : LNOVECTOR [14],
FMT_WRRUT,
EXT_MOD,
CMD_BUF,
CMD_END,
CMD_LEN,
CMD_PTR,
INP_SRC,
RCOV_MOD, ! Recovery mode (for journalling)
JOU_VALID, ! Validity of journal record
NOS, ! 1 = numbers, 0 = nonumbers
PA_MORE, ! More on current line indicator
PA_CURTOK, ! Pointer to remainder of input
PA_CURTOKLEN, ! Length of remainder
PMT_INS : VECTOR, ! Counted ASCII string for line-mode insert prompt
PMT_INSN : VECTOR; ! Counted ASCII string for line-mode insert nonumbers prompt
LOCAL
BIG_LINE_PMT : VECTOR [32], ! Prompt for lines larger than 10**5
STATUS,
EOF;
!+
! Set up the work-file system for insertion
!-
EDT$$START_INS ();
!+
! Look for the immediate insertion signaled by a '\' following the command.
! Don't insert the <CR><LF> at the end of the line.
!-
IF (.PA_MORE NEQ 0) THEN
BEGIN
EDT$$TI_BUFSTR (CH$PTR (CMD_BUF,, BYTE_SIZE), .CMD_LEN + .PA_CURTOKLEN - 2);
JOU_VALID = 1;
IF ( NOT .RCOV_MOD) THEN EDT$$TI_FLUSHJOUFI (%C'T');
EDT$$INS_LN (.PA_CURTOK, .PA_CURTOKLEN - 2);
PA_MORE = 0;
END
ELSE
!+
! Insert mode loop. Keep reading and inserting lines until EOF or until
! the maximum number of lines has been reached for this buffer
!-
BEGIN
IF (.EXT_MOD AND (.FMT_WRRUT EQL EDT$$TI_WRSTR) AND (.INP_SRC EQL INP_TERM))
THEN
EDT$$FMT_CRLF ();
!+
! Set up the prompt for large lines just in case we need it later
! (only want to do this once. To do this we add 5 spaces after the
! <CR><LF> in the prompt.
!-
IF (.NOS EQL 1)
THEN
BEGIN
BIG_LINE_PMT [0] = .PMT_INS [0] + 5;
CH$MOVE (.PMT_INS [0], CH$PTR (PMT_INS [1],, BYTE_SIZE),
CH$PTR (BIG_LINE_PMT [1], 5, BYTE_SIZE));
CH$FILL (%C' ', 5, CH$PTR (BIG_LINE_PMT [1],, BYTE_SIZE));
END;
DO
BEGIN
LOCAL
PROMPT_ADDR : REF VECTOR;
IF (EDT$$CMP_LNO (WK_STARTNO, LNO0 [10]) GEQ 0) AND (.NOS EQL 1)
THEN
PROMPT_ADDR = BIG_LINE_PMT
ELSE
PROMPT_ADDR = (CASE .NOS FROM 0 TO 1 OF
SET
[0] : PMT_INSN;
[1] : PMT_INS;
[OUTRANGE] :
BEGIN
ASSERT (15, 0);
0
END;
TES);
EOF = EDT$$GET_LN (0, PROMPT_ADDR [1], .PROMPT_ADDR [0]);
IF (( NOT .EOF) OR (.CMD_LEN NEQ 0))
THEN
STATUS = EDT$$INS_LN (CH$PTR (CMD_BUF,, BYTE_SIZE), .CMD_LEN)
END
UNTIL ((.EOF) OR ( NOT .STATUS));
END;
IF .EOF
THEN
BEGIN
CMD_END = CH$PTR(CMD_BUF,, BYTE_SIZE);
CMD_PTR = CH$PTR(CMD_BUF,, BYTE_SIZE);
END;
!+
! Inform the work file system that the insert is complete, and print
! the next line.
!-
EDT$$END_INS ();
IF (.INP_SRC EQL INP_TERM)
THEN
BEGIN
EDT$$FMT_CRLF ();
EDT$$TY_CURLN ();
END;
END;
%SBTTL 'EDT$$INS_CMD - INSERT line-mode command'
GLOBAL ROUTINE EDT$$INS_CMD ! INSERT line-mode command
: NOVALUE =
!++
! FUNCTIONAL DESCRIPTION:
!
! Command processing routine for the INSERT command. Position to the
! specified range and, if it positioned successfully, do the insert.
!
! FORMAL PARAMETERS:
!
! NONE
!
! IMPLICIT INPUTS:
!
! EXE_CURCMD
!
! IMPLICIT OUTPUTS:
!
! NONE
!
! ROUTINE VALUE:
!
! NONE
!
! SIDE EFFECTS:
!
! NONE
!
!--
BEGIN
EXTERNAL ROUTINE
EDT$$RNG_REPOS;
EXTERNAL
RNG_FRSTLN,
CUR_BUF : REF TBCB_BLOCK,
RNG_ORIGPOS : POS_BLOCK,
EXE_CURCMD : REF NODE_BLOCK; ! Pointer to the current command.
RNG_FRSTLN = 1;
EDT$$CPY_MEM (POS_SIZE, .CUR_BUF, RNG_ORIGPOS);
IF EDT$$RNG_REPOS (.EXE_CURCMD [RANGE1])
THEN
BEGIN
EDT$$INS_TXT ();
END;
END;
END
ELUDOM