* harbour/source/rdd/usrrdd/usrrdd.c
+ added functions to set WorkArea flags USRRDD_SETBOF, USRRDD_SETEOF,
USRRDD_SETFOUND, USRRDD_SETTOP, USRRDD_SETBOTTOM
* harbour/include/hbapierr.h
+ added HB_ERR_ARGS_BASEPARAMS
* harbour/source/rtl/errorapi.c
! check if ARGS passed to __ERRRT_BASE() and __ERRRT_SBASE() are
valid to avoid possible GPF
* replaced old hack with passing ARGS in array for some chosen errors
by HB_ERR_ARGS_BASEPARAMS in hb_errRT_BASE and hb_errRT_BASE_SubstR
- it was impossible to generate Clipper compatible error message
* harbour/source/rtl/do.c
* use HB_ERR_ARGS_BASEPARAMS
* harbour/source/rtl/tobject.prg
* assign SELF to ARGS of error object when EG_NO[VAR]METHOD RT error
is generated - Clipper compatible.
* harbour/source/vm/classes.c
* added __msgNoMethod which is returned to hb_vmSend when object does
not support requested message. This handler can display previous
Harbour error message though now it's disabled and Clipper compatible
error message is generated. I leave the decision to Harbour users
which version of error message should be used.
* changed __msgClsSel to return variable size array with only valid items
If some code needs fixed size array then it will have to be updated
* harbour/source/vm/hvm.c
* generate Clipper compatible error messages for EG_NO[VAR]METHOD
and EG_NOFUNC. Please do not change it. If you want previous Harbour
error messages for EG_NO[VAR]METHOD then please change __msgNoMethod
in classy.c
* harbour/source/vm/arrays.c
* minor modification
* harbour/bin/hb-func.sh
* harbour/config/global.cf
+ harbour/include/usrrdd.ch
+ harbour/source/rdd/usrrdd/Makefile
+ harbour/source/rdd/usrrdd/usrrdd.c
+ harbour/source/rdd/usrrdd/rdds/Makefile
+ added USRRDD library. It allows to create new RDD from scratch
or by inheriting from any other RDDs (except USRRDDs) and overloading
any of their methods at .prg level.
I hope you will find a lot of fun in creating your own RDDs.
I wanted to create more examples and added some documentation
but I do not have time for it now - sorry. Try to look at examples
below and if you need some more detail information then look at
Clipper's NG Technical Reference Guide or ask me. I'll try to help.
Two RDDs which seems to be requested by users are ARRAY RDD and
OLE RDD. I hope that some of you implement them.
+ harbour/source/rdd/usrrdd/rdds/dbtcdx.prg
* Very simple RDD DBTCDX which inherits from DBFCDX and
set default memo type to DBT, see exmemo.prg as an example.
+ harbour/source/rdd/usrrdd/rdds/fptcdx.prg
* Very simple RDD FPTCDX which inherits from DBFCDX and
set default memo type to FPT, see exmemo.prg as an example.
+ harbour/source/rdd/usrrdd/rdds/smtcdx.prg
* Very simple RDD SMTCDX which inherits from DBFCDX and
set default memo type to SMT, see exmemo.prg as an example.
+ harbour/source/rdd/usrrdd/rdds/fcomma.prg
* A simple RDD which uses HB_F*() functions from MISC library
to access CSV files. It allow to open an CSV file and navigate
using SKIP()/GOTO()/GOTOP()/GOBOTTOM() functions using
BOF()/EOF()/RECNO()/LASTREC() to check current state.
HB_F*() functions does not support single field access and allow
to read only the whole line. This RDD also. I only added one
virtual field which exist in all tables open by this RDD called
LINE which contains the current .csv file line.
+ harbour/source/rdd/usrrdd/rdds/hscdx.prg
* A simple RDD which adds automatically update HSX indexes to DBFCDX
To create new HSX index for current work area use: HSX_CREATE()
To open already existing one use HSX_OPEN(),
To close use: HSX_CLOSE()
To retieve an handle use: HSX_HANDLE()
+ harbour/source/rdd/usrrdd/rdds/rlcdx.prg
* A simple RDD which introduce lock counters. It has full DBFCDX
functionality from which it inherits but if you execute DBRLOCK(100)
twice then you will have to also repeat call to DBRUNLOCK(100) to
really unlock the record 100. The same if for FLOCK()
This idea comes from one of messages sent by Mindaugas Kavaliauskas.
+ harbour/source/rdd/usrrdd/example/exfcm.prg
* example of using FCOMMA RDD
+ harbour/source/rdd/usrrdd/example/exhsx.prg
* example of using HSCDX RDD
+ harbour/source/rdd/usrrdd/example/exrlx.prg
* example of using RLCDX RDD
+ harbour/source/rdd/usrrdd/example/exmemo.prg
* example of using DBTCDX, FPTCDX and SMTCDX RDDs
