Commit Graph

33 Commits

Author SHA1 Message Date
Przemyslaw Czerpak
0ed120ae00 2009-04-25 10:24 UTC+0200 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/source/compiler/complex.c
    ! fixed bug reported by Ranier

  * harbour/ChangeLog
    * added information to old ChangeLog entry that the idea of parsing the
      code inside #pragma begindump to detect static harbour functions in
      C code inside was 1-st time implemented by Andi Jahja in xHarbour.
2009-04-25 08:16:24 +00:00
Przemyslaw Czerpak
ba6f4192ea 2009-04-02 22:01 UTC+0200 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/include/hbexpra.c
    ! verify all expression POP operation for usage as LValue

  * harbour/include/hbexprb.c
    ! fixed possible GPF in unverified send context
    + added support for IIF() usage as LValue even if it cannot be
      reduced during [macro]compilation

  * harbour/source/macro/macro.yyc
  * harbour/source/macro/macro.y
  * harbour/source/macro/macrolex.c
    * removed support for some characters unsupported by Clipper in
      macro expressions like chr(10) as trailing expression character, f.e.:
         ? &("DATE()"+chr(10))

  * harbour/source/compiler/complex.c
    * formatting
2009-04-02 19:54:29 +00:00
Przemyslaw Czerpak
4b7f25e83b 2009-03-23 02:17 UTC+0100 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/source/pp/ppcore.c
  * harbour/source/common/hbdate.c
  * harbour/source/macro/macrolex.c
  * harbour/source/compiler/complex.c
    + added alternative support for date constant values as: d"YYYY-MM-DD"
      As delimiter the following characters can be used: "-", "/", "."
      Just like in t"..."
2009-03-23 01:11:27 +00:00
Przemyslaw Czerpak
26a11bd859 2009-03-21 16:07 UTC+0100 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/bin/hb-func.sh
    ! restored default optimization flag (-O3) in hb* scripts

  * harbour/harbour.spec
    ! fixed recent modification

  * harbour/contrib/rddads/ads1.c
  * harbour/contrib/rddads/adsfunc.c
  * harbour/contrib/hbmisc/strfmt.c
  * harbour/contrib/hbcrypt/sha1.c
    ! fixed wrongly used C reference operator

  * harbour/contrib/hbwin/win_prn2.c
  * harbour/contrib/hbwin/wapi_commctrl.c
  * harbour/source/vm/maindllp.c
    ! fixes for unicode builds

  * harbour/include/std.ch
    + added SET TIME FORMAT [TO] <f>

  * harbour/include/set.ch
  * harbour/include/hbset.h
  * harbour/source/vm/set.c
    + added _SET_TIMEFORMAT
      The folowing modifiers are supported:
         hh - hours
         mm - minutes
         ss - seconds
         fff - fraction part of seconds
         p - 1-st letter from PM / AM signature. When used time is shown
             in 12 hour format otherwise 24 hour format is used
      ex: Set( __SET_TIMEFORMAT, "hh:mm pm" )
      default _SET_TIMEFORMAT value is "hh:mm:ss:fff"
    + added C function: char * hb_setGetTimeFormat( void );

  * harbour/include/hbpp.h
  * harbour/source/pp/ppcore.c
    + added support for timestamp constant values in the form:
         t"YYYY-MM-DD HH:MM:SS.fff"
      The exact accepted timestamp pattern is is:
         YYYY-MM-DD [H[H][:M[M][:S[S][.f[f[f[f]]]]]]] [PM|AM]
      i.e.:
         tValue := t"2009-03-21 5:31:45.437 PM"
      or:
         YYYY-MM-DDT[H[H][:M[M][:S[S][.f[f[f[f]]]]]]] [PM|AM]
      with literal "T" as date and time part delimiters (XML timestamp
      format), i.e.:
         tValue := t"2009-03-21T17:31:45.437"
      The folowing characters can be used as date delimiters: "-", "/", "."
      if PM or AM is used HH is in range < 1 : 12 > otherwise
      in range < 0 : 23 >

  * harbour/source/compiler/complex.c
  * harbour/source/compiler/harbour.y
  * harbour/source/compiler/harbour.yyc
  * harbour/source/compiler/harbour.yyh
    + added support for t"YYYY-MM-DD HH:MM:SS.fff" time stamp constant
      to compiler
    + added support for VFP datetime constant values:
         { ^ [ YYYY-MM-DD [,] ] [ HH[:MM[:SS][.FFF]] [AM|PM] ] }
      The following characters can be used as date delimiters: "-", "/".
      Dot "." as date delimiter is not supported.
      There is no limit on number of characters in YYYY, MM, DD, HH, MM,
      SS, FFF parts. Important is only their value. This is the format
      in semi PP notation:
         { ^ <YEAR> <sep:/-> <MONTH> <sep:/-> <DAY> [[<sep2:,>]
           [ <HOUR> [ : <MIN> [ : <SEC> [ . <FRAQ> ] ] ] [AM|PP] ] }
      In practice it allows to also parse xHarbour datetime constant
      values with compatible conditions though xHarbour support onlu "/"
      as date delimiter.
      NOTE: there is one important difference to VFP and xHarbour in
      decoding above format. In VFP and xHarbour when date part is
      missing then it's set by default to: 1899-12-30 so this code:
         { ^ 12:00 }
      gived the same results as:
         { ^ 1899/12/30 12:00 }
      Harbour does not set any default date value when timestamp
      constant value contains only time part.
      If you want we can change it for strict VFP compatiblity.
      Now this extension is enabled by default for testing. In the future
      it will be probably covered by HB_COMPAT_FOXPRO macro.

  * harbour/source/macro/macro.yyc
  * harbour/source/macro/macro.y
  * harbour/source/macro/macro.yyh
  * harbour/source/macro/macrolex.c
    + added support for t"YYYY-MM-DD HH:MM:SS.fff" time stamp constant
      to macro compiler

  * harbour/include/hbmacro.h
  * harbour/source/vm/macro.c
    + added new function:
      void hb_macroGenPushTimeStamp( LONG lDate, LONG lTime, HB_COMP_DECL );

  * harbour/include/hberrors.h
  * harbour/source/compiler/hbgenerr.c
    + added new compile time error: "Invalid timestamp constant '%s'"

  * harbour/source/compiler/cmdcheck.c
    * use Harbour API timestamp functions instead of calling system
      functions

  * harbour/include/hbpcode.h
  * harbour/source/compiler/hbfix.c
  * harbour/source/compiler/hbpcode.c
  * harbour/source/compiler/hbdead.c
  * harbour/source/compiler/genc.c
  * harbour/source/compiler/gencc.c
  * harbour/source/compiler/hblbl.c
  * harbour/source/compiler/hbstripl.c
  * harbour/source/compiler/hbopt.c
    + added new PCODE HB_P_PUSHTIMESTAMP (replaced one unused PCODE value)
      to store timestamp constant values in the PCODE

  * harbour/include/hbcomp.h
  * harbour/source/compiler/hbmain.c
    + added new function:
      void hb_compGenPushTimeStamp( LONG lDate, LONG lTime, HB_COMP_DECL );

  * harbour/include/hbexprop.h
  * harbour/source/common/expropt1.c
    + added new C functions:
      HB_EXPR_PTR hb_compExprNewTimeStamp( LONG, LONG, HB_COMP_DECL );

  * harbour/include/hbexprb.c
  * harbour/include/hbcompdf.h
  * harbour/source/common/expropt2.c
    + added timestamp expressions support
    + added compile time optimization for timestamp expressions
    * updated function optimization for timestamp expressions

  * harbour/include/hbdate.h
  * harbour/source/common/hbdate.c
    * changed hb_dateMilliSeconds() to return UTC julian timestamp in
      milliseconds
    * changed existing seconds, time and timestamp functions to operate
      on common OS specific functions to eliminate possible problems
      with different OS time counters
    + added new functions to operates on time and timestamp values.
      See source code for details.

  + harbour/source/rtl/cputime.c
    * moved double hb_secondsCPU( int n ) function to separate file

  * harbour/source/rtl/seconds.c
    - removed old version of date/seconds functions

  * harbour/source/vm/hashes.c
  * harbour/source/vm/arrays.c
    + added support for timestamp values as hash item indexes

  * harbour/source/vm/hashfunc.c
    + added support for find timestamp values in hash and array items
      by simple date value in AScan(), hb_HScan(), hb_AScan() and hb_RAScan()
      functions when exact comparison is not used.

  * harbour/source/vm/asort.c
    + added support for sorting timestamp values

  * harbour/source/vm/classes.c
    + added support for timestamp scallar classes
    + added support for timestamp typed instance variables

  * harbour/source/vm/memvars.c
    + added support for timestamp values in .mem files

  * harbour/source/vm/estack.c
    + show timestamp values in stack dump

  * harbour/include/hbapi.h
  * harbour/source/vm/arrays.c
    + added new C functions:
      double hb_arrayGetTD( PHB_ITEM pArray, ULONG ulIndex );
      BOOL hb_arraySetTD( PHB_ITEM pArray, ULONG ulIndex, double dTimeStamp )
      BOOL hb_arrayGetTDT( PHB_ITEM pArray, ULONG ulIndex,
                           LONG * plJulian, LONG * plMilliSec );
      BOOL hb_arraySetTDT( PHB_ITEM pArray, ULONG ulIndex,
                           LONG lJulian, LONG lMilliSec );

  * harbour/include/hbapi.h
  * harbour/source/vm/extend.c
    + accept timestamp items in date functions - use only date part of
      timestamp value
    + added new C functions:
      double hb_partd( int iParam, ... );
      BOOL hb_partdt( LONG * plJulian, LONG * plMilliSec , int iParam, ... );
      void hb_rettd( double dTimeStamp );
      void hb_rettdt( LONG lJulian, LONG lMilliSec );
      int hb_stortd( double dTimeStamp, int iParam, ... );
      int hb_stortdt( LONG lJulian, LONG lMilliSec, int iParam, ... );

  * harbour/include/hbapiitm.h
  * harbour/source/vm/itemapi.c
    + accept timestamp items in date functions - use only date part of
      timestamp value
    + added new C functions:
      char * hb_itemGetTS( PHB_ITEM pItem, char * szDateTime );
      PHB_ITEM hb_itemPutTS( PHB_ITEM pItem, const char * szDateTime );
      double hb_itemGetTD( PHB_ITEM pItem );
      PHB_ITEM hb_itemPutTD( PHB_ITEM pItem, double dTimeStamp )
      BOOL hb_itemGetTDT( PHB_ITEM pItem, LONG * plJulian, LONG * plMilliSec );
      PHB_ITEM hb_itemPutTDT( PHB_ITEM pItem, LONG lJulian, LONG lMilliSec );
    + support for timestamp items in hb_itemString(), hb_itemPadConv() and
      hb_itemTypeStr() functions

  * harbour/include/hbvm.h
  * harbour/include/hbxvm.h
  * harbour/include/hbapi.h
  * harbour/source/vm/hvm.c
    + added HB_IT_TIMESTAMP items
    * modified HB_IT_DATE internal item structure to use common structure
      with HB_IT_TIMESTAMP - it  simplifies HVM code and eliminates additional
      RT conditions.
    + added HB_IS_TIMESTAMP() and ISTIMESTAMP() macros
    + added HB_IS_DATETIME() and ISDATETIME() macros - they return true
      if item/parameter is DATE or TIMESTAMP type.
    + added void hb_vmPushTimeStamp( long lJulian, long lMilliSec );
      and xhb_vmPushTimeStamp()
    + added support for timestamp values in relational operators:
         <, <=, >, >=, =, ==
      When two timestamp values are compared then VM compares date and
      time parts in both values.
      When date and timestamp values are used in <, <=, >, >=, = operations
      then VM compares only date part in both values.
      When date and timestamp values are used in == operation then VM
      compares date part in both values and then check if time part
      of timestamp value is 0.
    + added support for timestamp values in + and - math operations.
      The following rules are used in timestamp arithmetic:
         <t> + <t> => <t>
         <t> - <t> => <n>
         <t> + <n> => <t>
         <n> + <t> => <t>
         <t> - <n> => <t>
         <d> + <t> => <t>
         <t> + <d> => <t>
         <d> - <t> => <n>
         <t> - <d> => <n>
      When number is result or argument of timestamp operation then the
      its integer part is a number of day and fractional part is the time.

  * harbour/source/rtl/dateshb.c
    + added new .prg functions to mange date and timestamp values:
      HB_DATETIME() -> <tTimeStamp>
      HB_CTOD( <cDate> [, <cDateFormat> ] ) -> <dDate>
      HB_DTOC( <dDate> [, <cDateFormat> ] ) -> <cDate>
      HB_NTOT( <nValue> ) -> <tTimeStamp>
      HB_TTON( <tTimeStamp> ) -> <nValue>
      HB_TTOC( <tTimeStamp>, [ <cDateFormat> ] [, <cTimeFormat> ] ) ->
                                                            <cTimeStamp>
      HB_CTOT( <cTimeStamp>, [ <cDateFormat> ] [, <cTimeFormat> ] ) ->
                                                            <tTimeStamp>
      HB_TTOS( <tTimeStamp> ) -> <cYYYYMMDDHHMMSSFFF>
      HB_STOT( <cDateTime> ) -> <tTimeStamp>
         <cDateTime> should be in one of the above form:
            - "YYYYMMDDHHMMSSFFF"
            - "YYYYMMDDHHMMSSFF"
            - "YYYYMMDDHHMMSSF"
            - "YYYYMMDDHHMMSS"
            - "YYYYMMDDHHMM"
            - "YYYYMMDDHH"
            - "YYYYMMDD"
            - "HHMMSSFFF"
            - "HHMMSSF"
            - "HHMMSS"
            - "HHMM"
            - "HH"
         Important is number of digits.
      HB_TSTOSTR( <tTimeStamp> ) -> <cTimeStamp> // YYYY-MM-DD HH:MM:SS.fff
      HB_STRTOTS( <cTimeStamp> ) -> <tTimeStamp>
         <cTimeStamp> should be in one of the above form:
            YYYY-MM-DD [H[H][:M[M][:S[S][.f[f[f[f]]]]]]] [PM|AM]
            YYYY-MM-DDT[H[H][:M[M][:S[S][.f[f[f[f]]]]]]] [PM|AM]
         The folowing characters can be used as date delimiters: "-", "/", "."
         T - is literal "T" - it's for XML timestamp format
         if PM or AM is used HH is in range < 1 : 12 > otherwise
         in range < 0 : 23 >
      HB_HOUR( <tTimeStamp> ) -> <nHour>
      HB_MINUTE( <tTimeStamp> ) -> <nMinute>
      HB_SEC( <tTimeStamp> ) -> <nSeconds>   // with milliseconds

  * harbour/source/rtl/datec.c
    + accept timestamp parameters in CMONTH() and CDOW() functions

  * harbour/source/rtl/empty.c
    + added support for timestamp items

  * harbour/source/rtl/itemseri.c
    + added support for timestamp items serialization

  * harbour/source/rtl/minmax.c
    + added support for timestamp values to MIN() and MAX() functions.
      when only one of given parameters is timestamp value and other
      is date value and date parts are equal then always date item
      is returned as both MIN() or MAX() value.

  * harbour/source/rtl/dates.c
    + added new C functions: hb_timeFormat(), hb_timeUnformat(),
      hb_timeStampFormat(), hb_timeStampUnformat()

  * harbour/source/rtl/valtype.c
    + added .prg functions: HB_ISDATETIME(), HB_ISTIMESTAMP()

  * harbour/source/rtl/transfrm.c
    + added support for timestamp items formatting.
    + added new function modifier @T.
      When @T is used without @D then only time part of timestamp value
      is formatted and return.
      When @D is used without @T then only date part of timestamp value
      is formatted and return.

  * harbour/source/rtl/tbrowse.prg
    + display timestamp values

  * harbour/source/rtl/philes.c
    + accept timestamp value as second parameter of HB_FSETDATETIME()
      function
    + store file data and time in second parameter of HB_FGETDATETIME()
      as timestamp value.
    Old parameters (2-dDate, 3-cTime) are still supported but please think
    about removing them - they are redundant.

  * harbour/source/rtl/filesys.c
    * updated function names


  * harbour/source/rdd/dbf1.c
    + added native support for time and timestamp fields

  * harbour/include/hbrddcdx.h
  * harbour/include/hbrddnsx.h
  * harbour/source/rdd/dbfntx/dbfntx1.c
  * harbour/source/rdd/dbfcdx/dbfcdx1.c
  * harbour/source/rdd/dbfnsx/dbfnsx1.c
  * harbour/source/rdd/dbffpt/dbffpt1.c
    + added support for indexing timestamp fields
    + added support for using DATE values with timestamp fields
      which replicate HVM behavior.
      SEEK and SEEKLAST with date value when active index is on
      timestamp positions to 1-st or last record where date part
      of indexed timesamp value is equal.
      Settings scopes to date values when active index is on timestamp
      value reduce the visible record range to these ones which have
      date part of timestamp value in the range of dates values used
      for scopes. It possible to mix date and timestamp values in scope
      and set one scope to date value and the second to timesamp.

  * harbour/source/rdd/sdf1.c
  * harbour/source/rdd/delim1.c
    + added support for exporting timestamp fields

  * harbour/source/rdd/dbsql.c
    ! fixed typo in logical value export
    + export timestamp fields.
      Please update the format to given SQL syntax.


  * harbour/contrib/hbct/files.c
    + changed SETFDATI() to optionally accept timestamp parameter
      instead of two parameters dDate and cTime

  * harbour/contrib/hbct/misc1.c
    + added timestamp support to XTOC() function

  * harbour/contrib/hbct/misc2.c
    + added timestamp support to COMPLEMENT() function

  * harbour/contrib/hbct/dattime2.c
    + accept timestamp values in ADDMONTH(), DOY(), ISLEAP(), QUARTER()
      LASTDAYOM(), WEEK() functions

  * harbour/contrib/hbmzip/hbmzip.c
    + updated HB_ZipFileCreate( hZip, cZipName, tDateTime, cTime, ... )
      functions to optionaly accept timestamp value in 3-rd parameter
      instead od dDate, and cTime in 3-rd and 4-th parameters.
    + updated HB_UnzipFileInfo( hUnzip, @cZipName, @tDateTime, @cTime, ... )
      to return timestamp value in 3-rd parameter instead of date value.
      TODO: Please think about removing 4-th parameter from:
               HB_ZipFileCreate( hZip, cZipName, tDateTime, cTime, ... )
               HB_UnzipFileInfo( hUnzip, @cZipName, @tDateTime, @cTime, ... )
            Now it's redundant.
  * harbour/contrib/hbmzip/readme.txt
    * updated parameters description for above functions

  * harbour/contrib/hbnf/descendn.c
    + added timestamp support to FT_DESCEND() function

  * harbour/contrib/hbclipsm/date.c
    + accept timestamp values in DATEASAGE(), DATEASARRAY() and DATEISLEAP()
      functions

  * harbour/contrib/hbmisc/dates2.c
    + accept timestamp values in ISLEAPYEAR(), DAYSINMONTH(), EOM(), BOM(),
      WOM(), WOY(), EOY() and BOY() functions


   The following contrib files should be updated but I'm leaving it to
   other developers who want to keep this code alive:
         contrib/hbtip/utils.c
         contrib/hbvpdf/hbvpdf.prg
         contrib/hbvpdf/hbvpdft.prg
         contrib/hbwin/win_dll.c
            some minor cleanups if necessary and authors will find
            timestamp values usable

         contrib/hbole/ole2.c
         contrib/hbwin/win_ole.c
            add support for timestamp values in OLE

         contrib/rddado/adordd.prg
         contrib/rddads/ads1.c
         contrib/rddads/adsx.c
         contrib/rddsql/...
            add support for timestamp values in RDDs

   Warning: this implementation is not xHarbour compatible. There are many
   important differences. Mostly on C level and used API. Please be careful
   in porting xHarbour source code to Harbour.
2009-03-21 15:04:43 +00:00
Przemyslaw Czerpak
64f97582d9 2008-09-13 18:49 UTC+0200 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/include/hbpp.h
  * harbour/include/hbvm.h
  * harbour/include/hbcomp.h
  * harbour/include/hbcompdf.h
  * harbour/include/hbtrace.h
  * harbour/include/hbapilng.h
  * harbour/include/hbinit.h
  * harbour/source/rtl/langapi.c
  * harbour/source/pp/ppcore.c
  * harbour/source/pp/hbpp.c
  * harbour/source/vm/itemapi.c
  * harbour/source/vm/hvm.c
  * harbour/source/common/hbver.c
  * harbour/source/common/hbtrace.c
  * harbour/source/common/expropt2.c
  * harbour/source/compiler/complex.c
  * harbour/source/compiler/hbident.c
  * harbour/source/compiler/hbfunchk.c
    * changed some declarations from 'char *' to 'const char *' and
      fixed casting for some more pedantic compilers

  * harbour/source/pp/ppcore.c
    ! fixed one typo which could cause memory leak and even GPF

  * harbour/common.mak
  * harbour/source/vm/Makefile
  * harbour/source/rtl/Makefile
  - harbour/source/rtl/set.c
  + harbour/source/vm/set.c
  * harbour/include/hbstack.h
  * harbour/source/vm/estack.c
    * moved from RTL to HVM
    * eliminated hb_set global structure
    * moved set structure to HVM stack
    + added internal function hb_setClone() which is used to create
      copy of SET structure for child threads
    * hidden HB_SET_STRUCT declaration - 3-rd part code must not access it
      directly. Dedicated hb_set*() functions should be used instead.
    + added new function:
         BOOL hb_setSetItem( HB_set_enum set_specifier, PHB_ITEM pItem )
      which allow to change some set by 3-rd party code.
      TODO: not all SETs can be changed yet - if someone have a while
            then please add code for missing ones.

  * harbour/include/set.ch
  * harbour/include/hbset.h
    + added _SET_CODEPAGE which works like _SET_LANGUAGE giving common
      interface

  * harbour/include/hbsetup.h
    + added HB_CODEPAGE_DEFAULT which works like HB_LANG_DEFAULT

  * harbour/source/vm/hvm.c
    ! fixed builds which uses non EN lang or code page modules
      by forcing linking the chosen ones

  * harbour/include/hbstack.h
  * harbour/source/vm/estack.c
  * harbour/include/hbapicdp.h
  * harbour/source/rtl/cdpapi.c
    - removed global code page variable: hb_cdp_page and moved
      code page settings to HVM stack
    + added new function hb_cdpID() which returns current code page
      character ID
    + added new functions hb_vmCDP() and hb_vmSetCDP() to get/set
      active for given thread code page structure

  * harbour/include/hbstack.h
  * harbour/source/vm/estack.c
  * harbour/include/hbapilng.h
  * harbour/source/rtl/langapi.c
    + moved lang setting to HVM stack
    + added new functions hb_vmLang() and hb_vmSetLang() to get/set
      active for given thread language module

  * harbour/include/hbvmpub.h
  * harbour/include/hbstack.h
  * harbour/include/hbapi.h
  * harbour/source/vm/estack.c
  * harbour/source/vm/dynsym.c
  * harbour/source/vm/itemapi.c
  * harbour/source/vm/memvars.c
    * changed memvar handles for HB_HANDLE to void * which is directly
      casted to PHB_ITEM - new memvar references
    * changed HB_DYNS declarations for MT mode. In MT mode HB_DYNS does
      not contain area and memvar handles which are moved to thread
      local HVM stack
    + added array for thread local memvar and area handles to HVM stack
    % eliminated global continues array with all memvars and detached locals
    % changed HB_IT_MEMVAR to use pointers to HB_ITEM directly - it resolve
      synchronization problems in MT mode and should also improve the speed
      and reduce memory usage. It should be well visible in applications which
      uses lot of detached locals.
    - removed hb_memvarsInit() and hb_memvarsFree() - they are not necessary
      now because we do not longer use array with all allocated memvars
      and detached local and private stack initialization is made
      automatically
    + added internal functions hb_dynsymGetMemvar()/hb_dynsymSetMemvar()
    + added hb_memvarGetValueBySym() for debugger
    * moved PRIVATE variable stack to HVM stack
    * eliminated all static variables in memvars module

  * harbour/include/hbstack.h
  * harbour/source/vm/estack.c
  * harbour/source/rtl/fserror.c
    * moved IO errors to HVM stack
    + added special IO error handling which works without HVM stack
      It allows to use hb_fs*() functions without allocated stack
      by 3-rd party threads.

  * harbour/source/rtl/filesys.c
    * moved hb_fsCurDir() to HVM stack with special handling to work
      with HVM stack like IO errors

  * harbour/source/rdd/workarea.c
    * allocated RDD node array in bigger peaces to reduce later RT
      reallocations in MT mode. If user want to add dynamically more
      then 64 RDDs then it should synchronize this operation himself.

  * harbour/source/rdd/wacore.c
    * moved WA list, current WA, default RDD and neteer() flag to HVM stack

  * harbour/include/hbdefs.h
    - removed HB_HANDLE declaration

  * harbour/include/hbapi.h
    - removed HB_VALUE structure - it's not longer used due to different
      memvar handling
    * updated hb_struMemvar to new memvar handling
    * replaced hb_vmIsLocalRef() and hb_memvarsIsMemvarRef() with
      hb_vmIsStackRef() which respect multiple stack and new memvar
      and static structures and location in GC mark pass.

  * harbour/include/hbstack.h
  * harbour/source/vm/estack.c
  * harbour/source/vm/hvm.c
    + added support for thread specific data located on HVM stack
      Now it's possible to allocate static variables which are
      local to thread. Such variables are allocated on HVM stack
      and automatically destroyed. To declare new TSD variable use:
         HB_TSD_NEW( <name>, <size>, <init>, <destruct> )
      <name> - name of variable which holds TSD handler
      <size> - size of TSD are which has to be allocated
      <init> - init function, executed when new TSD is allocated by thread
               (thread access given TSD 1-st time). This function receives
               void * pointer to allocated area.
      <destruct> - destructor function executed when HVM stack is destroyed
      f.e.:
         static HB_TSD_NEW( s_scrData, sizeof( HB_SCRDATA ),
                            NULL, hb_xSaveRestRelease );
      To initialize dynamically allocated TSD variable use:
         HB_TSD_INIT( <name>, <size>, <init>, <destruct> )
      Pointer to TSD can be accessed using hb_stackGetTSD( &<name> )
      where <name> is name of variable which holds TSD handler, f.e.:
         PHB_SCRDATA pScrData = ( PHB_SCRDATA ) hb_stackGetTSD( &s_scrData );
      See source/rtl/xsavescr.c as an example
      It's also possible to test if data has been already allocated for
      current thread by:
         hb_stackTestTSD( &<name> ) => pData
      it works like hb_stackGetTSD() but return NULL if current thread data
      has not been allocated yet.

  * harbour/include/hbstack.h
  * harbour/source/vm/estack.c
    * changed hb_stack location to thread local storage in MT mode
    + added functions and macros to access/assign new HVM stack members
    + changed garbage collection mark functions to work with multiple
      stacks, thread local static and memvar variables

  * harbour/source/rtl/xsavescr.c
    * use TSD data for screen buffer to make __XSAVESCREEN()/__XRESTSCREEN()
      thread independent

  * harbour/source/rtl/idle.c
    * use TSD data for idle task settings and codeblocks
    - removed hb_idleShutDown() - it's not longer necessary

  * harbour/source/rtl/setkey.c
    * use TSD data for allocated keys to make SETKEY() thread independent

  * harbour/source/rtl/math.c
    * moved math error handler, math error block, math error mode and
      math error structure to TSD

  * harbour/source/rtl/errorapi.c
    * moved error handler, error block, error launch counter and DOS error
      value to TSD

  * harbour/source/rtl/inkey.c
    * moved inkey "before" and "after" blocks to TSD

  * harbour/source/rdd/hsx/hsx.c
    * moved HSX handles array to TSD

  * harbour/include/hbapigt.h
  * harbour/source/rtl/console.c
    - removed hb_setkeyInit() and hb_setkeyExit() - they are not longer
      necessary, allocated resources will be freed by TSD destructor
      function

  * harbour/include/hbapi.h
  * harbour/source/rtl/console.c
    * removed hb_conXSaveRestRelease() - it's not longer necessary,
      allocated resources will be freed by TSD destructor function

  * harbour/source/vm/macro.c
    * moved s_macroFlags to TSD

  * harbour/source/rtl/accept.c
    * moved accept buffer to TSD

  * harbour/include/hbcomp.h
  * harbour/include/hbcompdf.h
  * harbour/include/hbxvm.h
  * harbour/source/compiler/hbmain.c
  * harbour/source/compiler/hbfix.c
  * harbour/source/compiler/hbpcode.c
  * harbour/source/compiler/hbdead.c
  * harbour/source/compiler/complex.c
  * harbour/source/compiler/genc.c
  * harbour/source/compiler/gencc.c
  * harbour/source/compiler/hbopt.c
  * harbour/source/compiler/hblbl.c
  * harbour/source/compiler/hbstripl.c
  * harbour/source/compiler/harbour.y
  * harbour/source/compiler/harbour.yyc
  * harbour/source/compiler/harbour.yyh
  * harbour/source/vm/hvm.c
    + added new PCODE HB_P_THREADSTATICS
    + added support for static variables which are local to thread:
         THREAD STATIC <varname [:= <exp>], ...>
      They work like normal static variables but each thread operates
      on its own copy.
    * added protection against possible double call to hb_xfree()
      It can happen due to wrong marking expressions as used by bison
      and executing destructors after our free code when syntax error
      appear.

  * harbour/source/rtl/perfuncs.prg
  * harbour/source/rtl/menuto.prg
  * harbour/source/rtl/getlist.prg
  * harbour/source/rtl/readvar.prg
  * harbour/source/rtl/text.prg
    * use THREAD STATIC variables to make above code MT safe

  * harbour/include/hbgtcore.h
  * harbour/source/rtl/hbgtcore.c
    + added hb_gt_BaseFree() which will release current GT pointer
      locked by hb_gt_Base() function. This function will be used
      to optional automatic GT access synchronization when threads
      share the same GT.

  * harbour/source/rtl/gtapi.c
  * harbour/source/rtl/inkeyapi.c
  * harbour/source/rtl/mouseapi.c
  * harbour/contrib/hbct/ctwin.c
    * free GT pointer by hb_gt_BaseFree()
      TODO: CTWIN is not MT safe yet - it will be updated together
            with core GT when we add multi window interface for
            thread with own console window.

  * harbour/bin/hb-func.sh
  * harbour/config/linux/gcc.cf
    + added rt lib to Linux builds

  * harbour/bin/postinst.sh
    * create MT safe version of FM stat library: fmmt

  * harbour/bin/pack_src.sh
    + added support for ZIP packing

  * harbour/include/hbapi.h
  * harbour/include/hbvm.h
  * harbour/source/vm/hvm.c
    + added hb_vmThreadInit()/hb_vmThreadQuit() functions - they initialize
      HVM for calling thread so it can execute .prg code and call HVM
      functions. They can be used by 3-rd party code threads.
    + added hb_vmUnlock()/hb_vmLock() functions which informs that
      thread will not operate on HVM structures for some time allowing
      to execute single thread only processes like GC.
    + added hb_vmThreadQuitRequest() which sends stop request to given
       thread
    + added hb_vmWaitForThreads() which stops main thread execution waiting
      for other threads
    + added hb_vmSuspendThreads() and hb_vmResumeThreads() used be GC
      to stop all HVM threads before mark/swap scan
    + added linked list of HVM stacks
    + added hb_vmTerminateThreads() used by main HVM thread in QUIT state
    * moved EXIT procedures execution from QUIT request to HVM QUIT state
      in MT mode. It may effects some non structural code which tries to
      access private variables in EXIT functions but it's much cleaner
      and understandable for user. Please remember that we guaranties
      that ALWAYS code in BEGIN SEQUENCE is _always_ executed even after
      HVM QUIT request just like destructs. Personally I think that we
      should move EXIT procedures execution also in ST mode.
    * changed startup and cleanup code for new internal structures
    * changes startup and cleanup code for MT mode
    % removed some redundant HB_ITEM type settings
    ! eliminated non MT safe code which was using reference counters
      without protection

  * harbour/common.mak
  * harbour/source/vm/Makefile
  + harbour/include/hbthread.h
  + harbour/source/vm/thread.c
    + added C level functions to manage threads and synchronization objects
      See hbthread.h for detail description. They are based on PTHREAD API
      and PTHREAD documentation can be used as reference. I intentionally
      keep this list small for easier multiplatform porting.
      Now they have been implemented for PTHREADS (POSIX threads supported by
      many different OSes), MS-Win32/64 and OS2. The OS2 version is not tested
      at all. I do not even know if it can be compiled so please make tests.
      I used Internet resources and some part of xHarbour code as documentation
      for OS2 MT API. It should be quite easy to add other platforms if necessary.
      Harbour core code needs non recursive mutexes, conditional variables and
      TLS for one pointer. If platforms does not support conditional variables
      (f.e. MS-Win or OS2) then they can be emulated using multistate semaphores.
    + added .prg functions to manage threads and synchronization objects:
         hb_threadStart( <@sStart()> | <bStart> [, <params,...> ] ) -> <pThID>
         hb_threadJoin( <pThID> [, @<xRetCode> ] ) -> <lOK>
         hb_threadDetach( <pThID> ) -> <lOK>
         hb_threadQuitRequest( <pThID> ) -> <lOK>
         hb_threadWaitForAll() -> NIL
         hb_mutexCreate() -> <pMtx>
         hb_mutexLock( <pMtx> [, <nTimeOut> ] ) -> <lLocked>
         hb_mutexUnlock( <pMtx> ) -> <lOK>
         hb_mutexNotify( <pMtx> [, <xVal>] ) -> NIL
         hb_mutexNotifyAll( <pMtx> [, <xVal>] ) -> NIL
         hb_mutexSubscribe( <pMtx>, [ <nTimeOut> ] [, @<xSubscribed> ] ) -> <lSubscribed>
         hb_mutexSubscribeNow( <pMtx>, [ <nTimeOut> ] [, @<xSubscribed> ] ) -> <lSubscribed>
      The function list should give similar to xHarbour API but they are not exactly
      the same and except of hb_mutex*() functions which should replicate xHarbour behavior.

  + harbour/source/vm/vmmt
  + harbour/source/vm/vmmt/Makefile
    + added hbvmmt library to GNU make builds.
      Non GNU make builds should be updated.

  * harbour/contrib/hbct/pos1.c
  * harbour/contrib/gtwvg/gtwvg.c
  * harbour/contrib/rddads/ads1.c
  * harbour/contrib/hbmisc/spd.c
  * harbour/contrib/hbbmcdx/bmdbfcdx.c
  * harbour/contrib/examples/rdddbt/dbfdbt1.c
  * harbour/source/vm/runner.c
  * harbour/source/vm/itemapi.c
  * harbour/source/vm/hvm.c
  * harbour/source/rtl/console.c
  * harbour/source/rtl/strcase.c
  * harbour/source/rtl/spfiles.c
  * harbour/source/rtl/defpath.c
  * harbour/source/rtl/hbgtcore.c
  * harbour/source/rtl/dateshb.c
  * harbour/source/rtl/mlcfunc.c
  * harbour/source/rtl/fstemp.c
  * harbour/source/rtl/is.c
  * harbour/source/rtl/setcolor.c
  * harbour/source/rtl/errorint.c
  * harbour/source/rtl/transfrm.c
  * harbour/source/rtl/dates.c
  * harbour/source/rtl/filesys.c
  * harbour/source/rtl/gtdos/gtdos.c
  * harbour/source/rtl/gtwin/gtwin.c
  * harbour/source/rtl/gtwvt/gtwvt.c
  * harbour/source/rtl/gtxwc/gtxwc.c
  * harbour/source/rtl/gttrm/gttrm.c
  * harbour/source/rtl/gtpca/gtpca.c
  * harbour/source/rtl/gtcgi/gtcgi.c
  * harbour/source/rtl/gtcrs/gtcrs.c
  * harbour/source/rtl/gtstd/gtstd.c
  * harbour/source/rtl/gtsln/gtsln.c
  * harbour/source/rtl/gtsln/gtsln.h
  * harbour/source/rdd/dbf1.c
  * harbour/source/rdd/sdf1.c
  * harbour/source/rdd/delim1.c
  * harbour/source/rdd/dbcmd.c
  * harbour/source/rdd/hbdbsort.c
  * harbour/source/rdd/workarea.c
  * harbour/source/rdd/dbffpt/dbffpt1.c
  * harbour/source/rdd/dbfcdx/dbfcdx1.c
  * harbour/source/rdd/dbfntx/dbfntx1.c
  * harbour/source/rdd/hsx/hsx.c
  * harbour/source/rdd/hbsix/sxfname.c
    * use API functions instead of direct accessing to hb_cdp_page or hb_set

  * harbour/source/rtl/fstemp.c
  * harbour/source/rtl/fssize.c
  * harbour/source/rtl/hbffind.c
  * harbour/source/rtl/filesys.c
    * encapsulate potentially slow IO operation inside
      hb_vmUnlock()/hb_vmLock() calls to allow other thread GC
      activation

  * harbour/contrib/hbnf/fttext.c
    ! fixed casting

  * harbour/contrib/gtwvg/gtwvg.h
    - removed #include <comctl32.h> - my MinGW and MinGW/CE instalations do
      not have them. If it exists in some newer ones then it has to be
      covered by #if version checking.

  * harbour/source/vm/dynsym.c
    - removed hb_dynsymLog() and hb_dynsymMemvarHandle()
    * modified code to be MT safe and improved speed of some operations
    * added MUEXT protection for global dynamic table access

  * harbour/include/hbapi.h
  * harbour/source/vm/garbage.c
    * changed to work with MT HVM
    * changed to work with new memvar structures and thread local static and
      memvar variables
    * added MUEXT protection for linked block lists
    + added parameter to hb_gcCollectAll() which will force GC activation
      in MT mode by temporary suspending all executed threads.
    + added logical parameter to HB_GCALL() functions which is passed to
      hb_gcCollectAll()

  * harbour/source/vm/fm.c
    * added MUEXT protection for FM statistic module
    * added MT protection for reference counters. For platforms
      which supports atomic incrmenetation/decrementation (f.e.
      Interlocked*() functions in MS-Win) such operations are
      used. For other it's MUTEX protection. It gives MT safe
      readonly access for HVM complex variables without user
      synchronization. The MUTEX protection can cause some speed
      overhead so it's good to define MT safe version of
      HB_ATOM_INC()/HB_ATOM_DEC() in hbthread.h if given platform
      has them. Now they are defined only for Windows. For other
      platforms We can define can define them in assembler for some
      most popular CPUs in the future.

  * harbour/source/vm/classes.c
    * changed class definition array. Now it keeps pointers to class
      structures.
    * In MT mode allocated at HVM startup big enough array for class
      definitions to avoid later RT reallocations. It effectively eliminates
      MUTEX synchronization for class structure access.
    * protect by MUTEX code for new class creation

  * harbour/source/debug/dbgentry.c
    * eliminated hbvmopt.h and direct accessing to HVM structures

  * harbour/source/rtl/gtclip.c
    * protect with MUTEX access to internal clipboard data

  * harbour/source/rdd/nulsys/nulsys.c
    + added hb_rddCloseAll()

  + harbour/tests/mt
  + harbour/tests/mt/mttest01.prg
  + harbour/tests/mt/mttest02.prg
  + harbour/tests/mt/mttest03.prg
  + harbour/tests/mt/mttest04.prg
  + harbour/tests/mt/mttest05.prg
  + harbour/tests/mt/mttest06.prg
  + harbour/tests/mt/mttest07.prg
    + added some demonstration/test small MT programs written
      using Harbour language. Some of them can be also compiled
      by xHarbour but xHarbour does not pass any of my tests in
      real multi-CPU machine so do not expect they will work
      correctly.

   Harbour threads needs OS threads support. Each Harbour thread is directly
   mapped to OS thread. It's not very efficient on some older system where
   cost of thread creation and/or task switching is very expensive but it
   should not be bigger problem for modern OS-es which can support threads
   in practice nearly in user space only.
   I haven't touched Harbour function calling convention which comes from
   Clipper. It means that we do not pass pointer to VM to each functions
   like CLIP or xBase++. To resolve the problem I have to use thread local
   storage (TLS) where such pointer is kept. If platform does not support
   TLS then it can be emulated by us. Anyhow the speed of accessing TLS
   data and extracting HB_STACK poitner is critical for performance.
   Some compilers depending on used hardware and OS give native support
   for TLS (f.e. __thread keyword in GCC/BCC or __declspec( thread ) in MSVC).
   This should give optimal performance. On other Harbour uses TLS functions
   like TlsGetValue() (MS-WIN) or pthread_getspecific() (PTHREAD) are used.
   OS2 gives quite interesting TLS functionality which seems to be quite fast
   though it will be interesting to know how it is iplemented internally for
   real multi CPU machines (if it depends on CPU exception then the
   performance will be bad). We need TLS only for one pointer to HB_STACK
   structure.
   I haven't added any tricks like HB_THREAD_STUB in xHarbour to reduce
   the cost of TLS access. If it will be necessary for some platform the we
   can add it.
   Except TLS Harbour threads needs OS support for non recursive mutexes or
   critical sections and conditional variables. If platforms does not support
   conditional variables (f.e. MS-Win or OS2) then they can be emulated using
   multistate semaphores. I intentionally didn't create code which may need
   recursive mutexes. The non recursive ones are often faster and some
   platforms may not support recursive mutexes so they will have to be
   emulated by us.
   Harbour uses reference counters for complex variables. It means that even
   readonly access to complex item causes internal write operations necessary
   to increment/decrement its reference counter. To make such readonly access
   MT safe we have to make incrementation and decrementation with result
   checking atomic. By default it's done by mutex inside vm/fm.c but some
   platforms have native support for atomic inc/dec operations, f.e. 
   Interlocked*() functions in MS-Win. If they are available then such
   functions should be used to not reduce the performance by mutex call
   very often used functions. For many CPUs it should be quite easy to
   implement such atomic inc/dec functionality in assembler. F.e. for
   GCC and x86@32 it may looks like:

      static __inline__ void hb_atomic_inc32( volatile int * p )
      {
         __asm__ __volatile__(
            "lock incl %0"
            :"=m" (*p) :"m" (*p)
         );
      }

      static __inline__ int hb_atomic_dec32( volatile int * p )
      {
         unsigned char c;
         __asm__ __volatile__(
            "lock decl %0"
            "sete %1"
            :"=m" (*p), "=qm" (c) :"m" (*p) : "memory"
         );
         return c == 0;
      }

   and then it's enough to define in hbthreads.h:
      #define HB_ATOM_INC( p )    hb_atomic_inc32( ( volatile int * ) p )
      #define HB_ATOM_DEC( p )    hb_atomic_dec32( ( volatile int * ) p )

   Probably I'll make it for some most popular CPUs in the future.
   In Harbour each thread which wants to call HVM functions have to allocate
   it's own HVM stack. It's done hb_vmThreadInit(). The HVM stack is freed
   by calling hb_vmThreadQuit(). This functions can be called also by 3-rd
   party threads if they want to call HVM functions or execute .prg code.
   Calling HVM functions without allocated stack will cause GPF.
   I moved most of static variables to HVM stack to make them thread
   local. But some of them like FS errors have their own alternative
   copy which is used when thread does not allocate HVM stack. It allows
   to use hb_fs*() functions without HVM stack but programmer have to
   know that error codes return by hb_fs*Error() functions can be
   overwritten by other threads which also didn't allocated HVM stack.
   To execute garbage collector scan and mark pass it's necessary to
   stop other HVM threads. Otherwise the scan may give false results.
   It's also possible to not stop threads but protect with mutex all
   operations on GC items but it will probably cause performance reduction
   and will force some other modifications. Maybe I'll implement it
   in the future.
   I didn't use any OS level thread KILL or CANCEL calls. All HVM threads
   have to be cleanly removed without any resource leaks.
   QUIT command terminate only calling thread. If main (startup) HVM
   thread call QUIT then it sends QUIT request to all existing threads.
   In QUIT state ALWAYS statements and destructors are executed.
   New thread is created by:
      hb_threadStart( <@sStart()> | <bStart> [, <params,...> ] ) -> <pThID>
   The returned value is a pointer to internal thread structure which
   can be used in JOIN or DETACH operations. Each thread should be Joined
   or DETACHED to avoid resource leaks. If programmer does not store
   <pThID> or all instances of <pThID> are destroyed then thread is
   automatically detached. I do not know clear method of thread detaching
   in OS2. If some OS2 users knows it then plase update vm/hbthread.c.
   When thread terminates then all locked by this thread mutexes are
   released.
   Each thread uses its own memvars (PRIVATEs and PUBLICs) and work areas.
   When new thread is created then it inherits from parent thread:
      - code page
      - language
      - SETs
      - default RDD
   error block is initialized to default value by calling ERRORSYS()
   and PUBLIC variable GetList := {} is created.
   The following objects are initialized to default value:
         - error block
         - math error handler and math error block
         - macro compiler features setting (hb_setMacro())
           or move them to SETs.
   We can think about inheriting them. It's also possible to add
   inheriting of all visible memvars but I do not know it's good
   idea.

   Compilation and linking:
   For MT mode HVM library should be compiled with HB_MT_VM macro.
   GNU make automatically creates hbvmmt library which should be
   linked with Harbour MT programs instead of hbvm.
   Non GNU make files should be updated.
   If given compiler support TLS then you can try to set HB_USE_TLS
   to force using native compiler TLS support. Now it's enabled by
   default only for BCC. For Linux and GCC builds it may depend also
   on used GLIBC version. In older system there is no TLS support
   at all or TLS works only for shared binaries so I haven't enabled
   it. If you will test some other compiler then please add default
   native TLS support for them in hbthread.h
   Users using hb* scripts can simply use -mt switch when they want
   to create MT program, f.e.:
      hbmk -n -w3 -es2 -mt mttest01.prg

   There are still some minor things which should be done but I'll
   do them later. Current state seems to be fully functional.
   The most important and still missing is our own file lock server
   for RDD synchronization in POSIX systems. Kernel internally
   recognize POSIX locks by PID and file i-node - not PID and file
   handle. It means that the same file open more then once by one
   process shares locks. Because POSIX locks can be overwritten
   then we do not have any synchronization between aliased workareas
   or threads using the same table in *nixes. We have to make
   synchronization ourselves. I'll create such lock server ASAP.

   Please test and enjoy using Harbour threads.
2008-09-13 16:53:45 +00:00
Przemyslaw Czerpak
469f81397a 2008-05-20 02:18 UTC+0200 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/source/compiler/complex.c
    ! fixed typo in last modification - I chose wrong token
2008-05-20 00:19:24 +00:00
Przemyslaw Czerpak
9e6486912e 2008-05-19 23:01 UTC+0200 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/make_rpm.sh
  * harbour/harbour.spec
    * changed --without gpl to --without gpllib

  * harbour/source/compiler/complex.c
    * changed END terminal symbol used for END SEQUENCE to ENDSEQ
      for better error reporting in wrong .prg code
2008-05-19 21:01:53 +00:00
Przemyslaw Czerpak
a95ca6ab8b 2008-05-16 19:26 UTC+0200 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/include/hbcomp.h
  * harbour/include/hbcompdf.h
  * harbour/source/compiler/hbmain.c
  * harbour/source/compiler/complex.c
  * harbour/source/compiler/harbour.y
  * harbour/source/compiler/harbour.yyc
    ! moved function related variables and structures from HB_COMP to
      PFUNCTION - it fixes many different problems which can appear in
      some code, also the recent Mindaugas' example
    ! initialize statement value in error action to avoid valgrind/CodeGuard
      warning reports when syntax error appear in some complex statements

  * harbour/source/rtl/scrollbr.prg
    * repalced TAB with SPACEs
2008-05-16 17:27:20 +00:00
Przemyslaw Czerpak
01ac9cd6f1 2008-05-14 00:27 UTC+0200 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/source/compiler/complex.c
    ! added casting to unsigned char to force syntax error when
      some unknown tokens appear. Negative values bison recognizes
      as end of input.

  * harbour/contrib/rddads/adsmgmnt.c
    ! cleaned one warning
2008-05-13 22:27:36 +00:00
Przemyslaw Czerpak
c374d6f243 2007-10-13 02:12 UTC+0200 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/doc/destruct.txt
    * update description for multiple inherited destructors

  * harbour/source/compiler/complex.c
    * _HB_CLASS and _HB_MEMBER are not longer reserved words

  * harbour/include/hbclass.ch
  * harbour/include/hbexprop.h
  * harbour/include/hbexprb.c
  * harbour/source/macro/macro.y
  * harbour/source/compiler/harbour.y
    * formatting and minor code cleanup

  * harbour/source/compiler/hbusage.c
    * added missing information about -undef:<id> switch to usage
      description

  * harbour/source/compiler/gencc.c
    ! fixed bug reported by Teo in code generated for SWITCH statement
2007-10-13 00:12:25 +00:00
Przemyslaw Czerpak
ce51877db3 2007-10-10 00:05 UTC+0200 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/include/hbcompdf.h
  * harbour/source/compiler/hbmain.c
  * harbour/source/compiler/harbour.y
  * harbour/source/compiler/harbour.yyc
  * harbour/source/compiler/complex.c
    * cleanup: removed unused variable, some extension to datetime
      decoding, etc.
2007-10-09 22:05:51 +00:00
Przemyslaw Czerpak
4803d0e558 2007-10-09 09:05 UTC+0200 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/source/vm/runner.c
  * harbour/source/compiler/genhrb.c
    ! added support for functions marked as DYNAMIC in .hrb format

  * harbour/source/compiler/complex.c
    + finished code (stil disabled) to decode datetime in
       VFP strict date form
2007-10-09 07:05:39 +00:00
Przemyslaw Czerpak
c5c1113387 2007-10-08 23:05 UTC+0200 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/source/vm/hvm.c
    * do not clear references to public functions in symbol tables used
      by unloaded modules

  * harbour/source/compiler/complex.c
    + added disabled yet code to decode datetime in VFP strict date form
         {^YYYY/MM/DD[,][HH[:MM[:SS[.CCC]]][A|P]]}
      It's for future datetime implementation.
2007-10-08 21:06:12 +00:00
Przemyslaw Czerpak
72eca3d3e9 2007-09-18 00:45 UTC+0200 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/include/hbapicls.h
  * harbour/source/vm/hvm.c
    + added hb_clsDoInit() function to initialize classy .prg functions

  * harbour/source/compiler/complex.c
    * allow to use NIL as class name

  * harbour/source/compiler/harbour.yyc
  * harbour/source/compiler/harbour.y
  * harbour/source/compiler/harbour.yyh
    % optimize automatically var[0] declaration and generate the same
      PCODE as for var:={}

  * harbour/source/rtl/tscalar.prg
    + added HASH, POINTER and SYMBOL scalar classes
    * changed NIL class to not use any instance variables

  * harbour/source/vm/classes.c
    + added support for scalar classes. Now at startup classy code looks
      for hb<TYPENAME> functions and try to execute them to register
      scalar classes. It's Class(y) compatible behavior and only the prefix
      of scalar ceases class function is different: 'CSY' in class(y) and
      'HB' in Harbour, f.e.: hbNumeric()
      If you prefer xHarbour like not automatic scalar class registration
      with some PP commands:
         ASSOCIATE CLASS <ClassName> WITH TYPE
                           ARRAY|BLOCK|CHARACTER|DATE|HASH|LOGICAL|NIL|
                           NUMERIC|POINTER|SYMBOL
         ENABLE CLASS TYPE ALL
         ENABLE TYPE CLASS ARRAY|BLOCK|CHARACTER|DATE|HASH|LOGICAL|NIL|
                           NUMERIC|POINTER|SYMBOL
         EXTEND [TYPE] ARRAY|BLOCK|CHARACTER|DATE|HASH|LOGICAL|NIL|
                       NUMERIC|POINTER|SYMBOL WITH METHOD <SomeFunc>
      Then I can replace current code with it. If not then we should
      divide scalar cases definitions into separated files to allow
      easier overloading. I'm interesting in your opinions.
2007-09-17 22:45:30 +00:00
Przemyslaw Czerpak
08a3551742 2007-09-12 02:10 UTC+0200 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/include/std.ch
    * cover ENDSEQUENCE translation with HB_C52_STRICT macro
    + added translations for END SWITCH, END WITH, END OBJECT

  * harbour/source/compiler/complex.c
  * harbour/source/compiler/harbour.y
  * harbour/source/compiler/harbour.yyc
  * harbour/source/compiler/harbour.yyh
    + added support for ENDSEQ[UENCE], ENDSW[ITCH] and ENDW[ITH]

  * harbour/source/rtl/hbgtcore.c
    ! changed string to color number translation to be fully Clipper
      compatible. Now I do not know any examples which we translate
      differently - if someone will find any them then please inform me.
      The only one intentional difference between Harbour and Clipper
      is in color number to string translation and background highlighting
      attribute "*", Clipper put it just before "/" as part of foreground
      color (f.e.: 248 => "N*+/W") but Harbour as part background color
      (f.e.: 248 => "N+/W*") - Clipper compatible behavior is enabled when
      Harbour is compiled with HB_C52_STRICT macro

  * harbour/utils/hbtest/rt_misc.prg
    * control the position of background highlighting attribute (*) in
      expected results depending on HB_C52_STRICT. Harbour passes correctly
      all included color translation tests.
2007-09-12 00:10:09 +00:00
Przemyslaw Czerpak
ad2ab41638 2007-06-14 00:05 UTC+0200 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/include/hbcompat.ch
    + added translation rules for extended code blocks

  * harbour/source/compiler/gencc.c
    * cleaned C compiler warnings in -gc3 output and SWITCH <exp>
      statement

  * harbour/source/compiler/complex.c
  * harbour/source/compiler/harbour.y
  * harbour/source/compiler/harbour.yyc
    * allow to use 0d0 and 0d00000000 as empty date value

  * harbour/source/pp/Makefile
    * workaround for problems with some GNU make  versions,
      f.e. 3.76.1 on OS2
2007-06-13 22:06:19 +00:00
Przemyslaw Czerpak
91ec7b23a5 2007-05-11 22:50 UTC+0200 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/include/hbcomp.h
  * harbour/include/hbcompdf.h
  * harbour/include/hbexpra.c
  * harbour/include/hbexprb.c
  * harbour/source/compiler/complex.c
  * harbour/source/compiler/genc.c
  * harbour/source/compiler/gencli.c
  * harbour/source/compiler/genobj32.c
  * harbour/source/compiler/harbour.y
  * harbour/source/compiler/harbour.yyc
  * harbour/source/compiler/harbour.yyh
  * harbour/source/compiler/hbmain.c
    * changed code used for variable scoping - now it's much more
      simple (only one function) and allows to use declarations in
      nested functions/codeblocks with visibility similar to Pascal
    ! fixed parsing FILED <fields,...> IN <alias>
      we were accepting code like:
         FIELD f1, f2 IN db1, f3 IN db2 IN db3
      and for all fields the last alias (db2 in this example) was used
    ! fixed calculating number of static variables with -b (debugger)
      compilation (number of file wide statics were doubled)
    ! fixed generation of static variable names for debugger when declared
      with array dimensions, f.e.:
         static sVar[3]

  * harbour/source/rtl/hbffind.c
    * minor cleanup *nix version

  * harbour/contrib/bmdbfcdx/bmdbfcdx1.c
    ! fixed casting for C++ compilation

  * harbour/source/rdd/dbfdbt/dbfdbt1.c
    * updated for some old API modifications (this library is not used now
      but if we keep it in CVS then I think it should be updated)
2007-05-11 20:51:04 +00:00
Przemyslaw Czerpak
88cda3200d 2007-03-22 12:55 UTC+0100 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/common.mak
    * updated for new files - please check

  * harbour/harbour.spec
    * added compiler library

  * harbour/bin/pack_src.sh
  * harbour/bin/hb-func.sh
    * updated for new files and libraries

  * harbour/config/w32/mingw32.cf
  * harbour/config/w32/watcom.cf
  * harbour/config/w32/xcc.cf
    * added winsock libraries

  * harbour/include/hbapicdp.h
  * harbour/source/rtl/cdpapi.c
    + added hb_cdpicmp() - not case sensitive version of hb_cdpcmp()

  * harbour/include/hbapiitm.h
  * harbour/source/vm/itemapi.c
    + hb_itemStrICmp(), hb_itemCopyFromRef(), hb_itemMoveFromRef()

  * harbour/include/hbapi.h
  * harbour/include/hbcomp.h
  * harbour/include/hbcompdf.h
  * harbour/include/hbexpra.c
  * harbour/include/hbexprb.c
  * harbour/include/hbexprop.h
  * harbour/include/hbmacro.h
  * harbour/include/hbpcode.h
  * harbour/include/hbvmpub.h
  * harbour/include/hbxvm.h
  * harbour/source/common/expropt1.c
  * harbour/source/compiler/complex.c
  * harbour/source/compiler/genc.c
  * harbour/source/compiler/gencc.c
  * harbour/source/compiler/gencli.c
  * harbour/source/compiler/genhrb.c
  * harbour/source/compiler/genobj32.c
  * harbour/source/compiler/harbour.y
  * harbour/source/compiler/harbour.yyc
  * harbour/source/compiler/harbour.yyh
  * harbour/source/compiler/hbdead.c
  * harbour/source/compiler/hbfix.c
  * harbour/source/compiler/hblbl.c
  * harbour/source/compiler/hbmain.c
  * harbour/source/compiler/hbopt.c
  * harbour/source/compiler/hbpcode.c
  * harbour/source/compiler/hbstripl.c
  * harbour/source/macro/macro.y
  * harbour/source/macro/macro.yyc
  * harbour/source/macro/macro.yyh
  * harbour/source/macro/macrolex.c
  * harbour/source/vm/Makefile
  * harbour/source/vm/arrays.c
  * harbour/source/vm/asort.c
  * harbour/source/vm/classes.c
  * harbour/source/vm/eval.c
  * harbour/source/vm/garbage.c
  * harbour/source/vm/hvm.c
  * harbour/source/vm/itemapi.c
  * harbour/source/vm/macro.c
  + harbour/source/vm/hashes.c
  + harbour/source/vm/hashfunc.c
    + added hash items, f.e.:
         local h1 := {=>}, h2 := { "a"=>1.234, "b"=>2.345 }
         ? h2[ "a" ], h2[ "b ]
    + added support for DYNAMIC function declaration - it allow to define
      functions which are lately bound at runtime, f.e.:
         /*** t01.prg ***/
         dynamic func1
         proc main()
         local h:=__hrbload("t02.hrb")
         ? func1()
         return

         /*** t02.prg ***/
         func func1
         return "Hello!!!"

    % use new FUNCALL structure to hold EXTERNAL and DYNAMIC functions,
      it reduce memory usage, FUNCALL is much smaller then FUNCTION
    % use symbol scope bits when possible instead of making some linear scan
    + added new enumarator message: __ENUMKEY - it allow to access
      key value when hash item is base enumerator value, f.e.:
         proc main()
         local v, h:={"a"=>1.000,"b"=>2.000,"c"=>3.000}
         heval( h, { |k,v,i| qout( k, v, i ) } ); ?
         for each v in h
            ? v, "=>", v:__enumKey(), v:__enumValue(), v:__enumIndex(), ;
                       valtype(v:__enumBase())
            v += 0.123
         next
         ? ;heval( h, { |k,v,i| qout( k, v, i ) } )
         return
    + added C level hb_hash*() functions
    + added support for full HASH item cloning and updated array cloning
      to also clone nested hashes - please note that xHarbour does not do
      that, in xHarbour ACLONE() clones _ONLY_ nested arrays and HCLONE()
      _DOES_NOT_ clone _ANY_ nested items.

  * harbour/include/hbextern.ch
    + added hash functions HB_H*()
    * changed INET*() functions to HB_INET*()
    + added hash functions H*() and socket functions INET*() when
      HB_COMPAT_XHB is set

  * harbour/include/hbtypes.h
    + added missing HB_EXTERN_BEGIN / HB_EXTERN_END

  * harbour/include/hbpp.h
  * harbour/source/pp/ppcore.c
    ! added protection against automatic word concatenation in some cases
    ! fixed preprocessing expressions when match marker matches ';' token

  * harbour/source/rtl/Makefile
  + harbour/source/rtl/itemseri.c
    + added functions for item serialization: HB_SERIALIZE() and
      HB_DESERIALIZE() - these function are not binary compatible
      with xHarbour functions with the same names but make very
      similar job with the exception to serialization of codeblock
      and object variables - Harbour does not allow to serialize
      codeblocks and serialize objects as arrays.
      In most cases these functions can replace the xHarbour ones
    + added HB_DESERIALBEGIN() and HB_DESERIALIZE() functions covered
      by HB_COMPAT_XHB macro - this functions are only for compatibility
      with existing xHarbour code, In Harbour HB_DESERIALBEGIN() is
      dummy function which returns first parameter and HB_DESERIALNEXT()
      is a simple wrapper to HB_DESERIALIZE() so it's not necessary to
      use them.

  * harbour/source/rtl/hbinet.c
    * changed INET*() functions to HB_INET*() and enable them for default
      build
    + added INET*() functions wrappers covered by HB_COMPAT_XHB macro

  * harbour/source/rtl/hbrandom.c
    + added HB_RANDOMINT() - xHarbour compatible

  * harbour/source/rtl/len.c
    + added support for HASHes

  * harbour/source/rtl/valtype.c
    + added support for HASHes
    + added set of HB_IS*() functions - they are a little bit faster then
      calling VALTYPE( v ) == <cVal>
    - removed HB_ISBYREF() - this function cannot longer work, it was using
      a Clipper incompatible anomalies in passing variables by reference I
      fixed so it has to stop to work. If it will be realy necessary to
      implement HB_ISBYREF() function then please inform me - it will have
      to be done at compiler level or with some much deeper HVM stack
      checking.

  * harbour/source/vm/extend.c
    ! fixed hb_extIsArray() and hb_extIsObject() to work well with
      parameters passed by reference.
      Please note that now hb_extIsArray() return TRUE only for pure arrays
      not object values.

  * harbour/contrib/Makefile
  + harbour/contrib/tip/Changelog
  + harbour/contrib/tip/Makefile
  + harbour/contrib/tip/atokens.c
  + harbour/contrib/tip/base64x.c
  + harbour/contrib/tip/cgi.prg
  + harbour/contrib/tip/client.prg
  + harbour/contrib/tip/credent.prg
  + harbour/contrib/tip/cstr.prg
  + harbour/contrib/tip/encb64.prg
  + harbour/contrib/tip/encmthd.c
  + harbour/contrib/tip/encoder.prg
  + harbour/contrib/tip/encqp.prg
  + harbour/contrib/tip/encurl.prg
  + harbour/contrib/tip/ftpcln.prg
  + harbour/contrib/tip/hbhex2n.c
  + harbour/contrib/tip/httpcln.prg
  + harbour/contrib/tip/mail.prg
  + harbour/contrib/tip/popcln.prg
  + harbour/contrib/tip/smtpcln.prg
  + harbour/contrib/tip/tip.ch
  + harbour/contrib/tip/url.prg
  + harbour/contrib/tip/utils.c
    + added TIP library - code borrowed from xHarbour



   Please test - a lot of above code is not well tested, also some peaces
   were written over year ago for different things (f.e. serialization for
   NETRDD) and now I collected them and committed.
   The TIP library was not tested at all. It can be compiled but I cannot
   say if it works - I hope that people familiar with it can make necessary
   test and fixes.
   It's also not the final version of low level HASH item code. I'm working
   on more efficient structure which uses binary tries but I cannot say when
   I'll finish it (maybe in this weekend or maybe in next year) so I committed
   working version now even if I'm not happy with overall performance (BTW
   not worser then in xHarbour)
2007-03-22 12:28:14 +00:00
Przemyslaw Czerpak
1cba971155 2007-02-28 08:10 UTC+0100 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/include/hbpp.h
  * harbour/source/compiler/complex.c
  * harbour/source/compiler/harbour.y
  * harbour/source/compiler/harbour.yyc
  * harbour/source/pp/ppcore.c
    * updated lexer to recognize IF(<exp1>,<exp2>,<exp3>) in expressions like
      IF(<exp,...>) - it allow to make some grammar rules much more simple.
2007-02-28 07:11:17 +00:00
Przemyslaw Czerpak
26617b2472 2007-02-18 12:40 UTC+0100 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/common.mak
  * harbour/source/compiler/Makefile
  * harbour/source/compiler/hbfix.c
  + harbour/source/compiler/hbopt.c
    * divided hbfix.c into two separated functions:
      - hb_compFixFuncPCode() which only fix generated PCODE updating
        local parameters numbers when PARAMETERS is used
      - hb_compOptimizePCode() which makes PCODE optimization
      It allows to not execute hb_compFixFuncPCode() when PARAMETERS
      is not use and execute hb_compOptimizePCode() more then once in
      optimization process.

  * harbour/hbgtmk.sh
    * updated CVS server name

  * harbour/include/hbcomp.h
  * harbour/include/hbcompdf.h
  * harbour/source/compiler/complex.c
  * harbour/source/compiler/harbour.c
  * harbour/source/compiler/harbour.y
  * harbour/source/compiler/harbour.yyc
  * harbour/source/compiler/hbcomp.c
  * harbour/source/compiler/hbgenerr.c
  * harbour/source/compiler/hbident.c
    * changed code for generating in PCODE line numbers and module names
      there was serious problem with line numbers and module names in old
      code - in many cases line numbers were not generated at all or
      generated in wrong places. Also file module name was not updated
      when inside of function some code was included with #include
      For such situation now modified version of HB_P_MODULE is generated
      with module name only but without function name, f.e.:
         HB_P_MODULE    "test.prg:"
      exactly the same form of HB_P_MODULE is used in xHarbour.
      Debugger code should be updated to recognize such HB_P_MODULE version
      Ryszard any chance that you can look at it?
      And what about syncing with xHarbour debugger?
      I can add some missing functions to compiler and HVM but I do not
      want to update next peace of code myself. Sorry but I do not have
      enough time. I'd prefer to finish some other things I'm working.
      If Ryszard is busy can someone else try to port xHarbour debugger
      to Harbour?
2007-02-18 11:40:22 +00:00
Przemyslaw Czerpak
48f8dba263 2007-02-08 23:55 UTC+0100 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/include/hbgtinfo.ch
  * harbour/contrib/libct/ctwin.c
  * harbour/source/rtl/gtalleg/gtalleg.c
  * harbour/source/rtl/gtcrs/gtcrs.c
  * harbour/source/rtl/gtdos/gtdos.c
  * harbour/source/rtl/gtos2/gtos2.c
  * harbour/source/rtl/gtpca/gtpca.c
  * harbour/source/rtl/gtsln/gtsln.c
  * harbour/source/rtl/gtstd/gtstd.c
  * harbour/source/rtl/gtwin/gtwin.c
  * harbour/source/rtl/gtwvt/gtwvt.c
  * harbour/source/rtl/gtxwc/gtxwc.c
    + added support for GTI_FULLSCREEN, GTI_KBDSUPPORT, GTI_ISCTWIN

  * harbour/source/rtl/hbgtcore.c
    ! fixed line and box drawing when the coordinates are out of screen size

  * harbour/include/hbapi.h
  * harbour/include/hbcomp.h
  * harbour/include/hbpcode.h
  * harbour/include/hbstack.h
  * harbour/include/hbvm.h
  * harbour/include/hbxvm.h
  * harbour/source/compiler/complex.c
  * harbour/source/compiler/genc.c
  * harbour/source/compiler/gencc.c
  * harbour/source/compiler/harbour.c
  * harbour/source/compiler/harbour.y
  * harbour/source/compiler/harbour.yyc
  * harbour/source/compiler/harbour.yyh
  * harbour/source/compiler/hbdead.c
  * harbour/source/compiler/hbfix.c
  * harbour/source/compiler/hblbl.c
  * harbour/source/compiler/hbpcode.c
  * harbour/source/compiler/hbstripl.c
  * harbour/source/vm/classes.c
  * harbour/source/vm/estack.c
  * harbour/source/vm/hvm.c
  * harbour/source/vm/itemapi.c
    ! added protection against cyclic references in arrays
    * eliminated action parameter from hb_vmRequestReenter() /
      hb_vmRequestRestore()
    * moved s_lRecoverBase and s_uiActionRequest to HB_STACK structure
      for future MT HVM version
    + added internal item structure hb_struRecover - it's not real item
      but this structure is used to keep information about BEGIN SEQUENCE
      data - it reduce HB_STACK usage
    + added support for ALWAYS clause in BEGIN SEQUENCE
      The syntax is:
         BEGIN SEQUENCE
            <code>
         [ RECOVER [ USING oErr ] ]
            <recoverCode>
         [ ALWAYS ]
            <alwaysCode>
         END [ SEQUENCE ]
      It's guaranteed that <alwaysCode> is _ALWAYS_ executed even if
      inside <code> or <recoverCode> some new exceptions like RETURN,
      BREAK or QUIT will appear.
      Please note that when the following code is executed:
         BEGIN SEQUENCE
            <code>
         ALWAYS
            <alwaysCode>
         END
      (without RECOVER clause) then BREAK exception inside <code> is not
      recovered, <alwaysCode> is executed and then BREAK exception is
      passed to outer BEGIN SEQUENCE. This is the same semantic as
      used in TRY / [ CATCH ] / FINALLY / END
      Those of you who prefer to use TRY / CATCH / FINALLY / END instead
      of BEGIN SEQUENCE / RECOVER / ALWAYS / END can simply add to your
      source code:
         #command TRY               => BEGIN SEQUENCE
         #command CATCH [ oErr ]    => RECOVER [ USING <oErr> ]
      and:
         errorBlock( {|oErr| break( oErr ) } )
      Though instead of 'break( oErr )' I suggest to use some small function
      which will support some basic recovery/substitute operations like in
      default errorsys() and LockErrHandler() to not break existing code
      which may depends on the default behavior.
      If you want I can add direct support for TRY / CATCH / FINALLY / END
      but I'm not sure it's really necessary.
      Please note also that in Harbour ALWAYS code is execute even for QUIT
      excpetion.
      When <alwaysCode> is executed current exception is stored and restored
      when is finished. If new exception appears inside <alwaysCode> then
      restored exception depends on the priority in the following order:
         QUIT     // highest priority
         BREAK
         RETURN
      If both exceptions have the same priority and contain additional value
      (error object in BREAK or return value in RETURN) then the recently set
      one is restored. It's similar behavior to destructor code.

  * harbour/source/common/hbstr.c
    * moved one character length string table (hb_szAscii) from hvm.c
      to use it also in compiler and preprocessor

  * harbour/source/compiler/ppcomp.c
  * harbour/source/pp/ppcore.c
  * harbour/source/pp/pplib.c
    * tuned error messages to be more Clipper compatible
    % use static strings from hb_szAscii

  * harbour/source/rtl/alert.prg
    * use hb_gtInfo( GTI_FULLSCREEN ) to detect type of GT driver
    ! some minor fixes
      TOFIX: we have to also use GTI_ISCTWIN or add window allocation
             to standard GT drivers to be Clipper compatible when CTWIN
	     is used - In Clipper Tools ALERT() works in differ way then
	     the standard one. It creates separate window box to display
	     data, supports SETKEY(), etc. I'll think about adding some
	     extended support for ALERT() and similar operations (f.e.
	     separate debugger windows) to GT API so it will be also
	     possible to overload standard alert() command by GUI message
	     box in GTGUI and similar GT drivers.

  * harbour/source/rtl/binnumx.c
    ! fixed U2BIN() - wrong casting
2007-02-08 22:56:31 +00:00
Przemyslaw Czerpak
071fef7612 2007-01-13 14:05 UTC+0100 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/contrib/rdd_ads/adsfunc.c
  * harbour/source/rdd/workarea.c
    * formatting

  * harbour/include/hbapi.h
  * harbour/source/vm/extend.c
    + added missing hb_storptrGC()

  * harbour/include/hbapicdp.h
  * harbour/source/rtl/cdpapi.c
    + added parameter to unicode translation function to protect control
      code translation
    * formatting

  * harbour/source/rtl/gtsln/kbsln.c
  * harbour/source/rtl/gtxwc/gtxwc.c
    * use new unicode translation function format. It also fixes problem
      with space translation in GTLSN used in UTF8 mode

  * harbour/include/hbapiitm.h
  * harbour/source/vm/itemapi.c
    + added hb_itemCopyToRef(), hb_itemMoveToRef(), hb_itemMoveRef(),
      hb_itemUnRefWrite()

  * harbour/include/hbexprb.c
    ! use HB_P_DUPLUNREF instead of HB_P_DUPLICATE when assign is used in
      push context - Clipper compatible behavior, see:
         x:=10
         f(y:=iif(.t.,@x,))
         ? x, y
         func f(x)
         x+=100
         return nil

  * harbour/include/hbver.h
  * harbour/source/common/hbver.c
    * changed status to "devel"

  * harbour/source/common/expropt2.c
    * disabled setting NIL when iif(.t.,,sth()) is optimized to avoid
      warning when iif() is used as statement - to fix number of parameters
      passed to function in code like f(iif(.t.,,sth())) we will need a
      little bit deeper modification

  * harbour/source/compiler/complex.c
    * added hack for potential problems caused by WITH OBJECT syntax, f.e.
      in code like:
         proc p(obj,x)
         case:=myCaseClass():new()
         retu:=myCaseClass():new()
         WITH OBJECT obj
            do case
               case x==nil
               case:value()
               case:action()
                  retu:sth()
            end
         END
         case:action()
         retu:sth()
         return
      case:action(), case:value(), retu:sth() can means two different things
      and compiler cannot guess which one should use. It cannot be fixed
      because it's caused by bad WITH OBJECT syntax. In xHarbour constractions
      like case:value() or retu:sth() are always used as in  WITH OBJECT
      context what is not Clipper compatible. I do not want to introduce
      such limitations. We have two choices: change WITH OBJECT syntax or
      add some hack to "hide" the problem a little bit. Now I intorduce
      ugly hack which check number of spaces between ':' so
         case :action()
      is compiled as case condition using WITH OBJECT message and
      case:action() as sending message to object in case variable

  * harbour/source/compiler/harbour.y
  * harbour/source/compiler/harbour.yyc
    + added support for passing base value to FOR EACH by reference.

  * harbour/source/vm/arrays.c
    * use hb_itemMoveRef() in AINS()/ADEL() to avoid creation of cyclic
      reference chains

  * harbour/source/vm/debug.c
  * harbour/source/vm/memvars.c
    * use hb_itemCopyToRef() to avoid creation of cyclic reference chains

  * harbour/source/vm/classes.c
  * harbour/source/vm/hvm.c
    * use hb_itemMoveToRef() to avoid creation of cyclic reference chains
    + added support for for writable string enumerators, f.e.:
         proc main()
         local s, c
         s:="abcdefghijklmnopqrst"
         for each c in @s
            if c$"aeio"
               c:="*"
            endif
         next
         ? s // "*bcd*fgh*jklmn*pqrst"
         return
2007-01-13 13:18:35 +00:00
Przemyslaw Czerpak
9d263b1141 2007-01-05 08:00 UTC+0100 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/include/hbcompdf.h
     + added comment

  * harbour/include/hbexpra.c
     * change expression type for <exp> = <exp> from HB_EO_EQUAL
       to HB_EO_ASSIGN in hb_compExprGenStatement() function so
       later we can safely make all optimization in hb_compExprUseEqual()
       during reduce process - optimization only when PCODE is generated
       is too late and causes that expressions like:
         iif( 1 = 1, <exp>, <exp> )
       are not reduces (Clipper reduce them)
     * do not execute hb_compFunCallCheck() in hb_compExprNewFunCall()
       to avoid repeating the same error message in hb_compExprUseFunCall()

  * harbour/include/hbexprb.c
     * enabled reduction for hb_compExprUseEqual() and generate errors
       when it's used as statement

  * harbour/source/common/expropt2.c
     * added some missing reductions for expressions like: NIL == NIL

  * harbour/source/common/reserved.c
     % very basic optimization: use binary search instead of linear
       scanning for reserved words and shortcuts - it gives noticeable
       speed improvement in macro compiler

  * harbour/source/compiler/complex.c
     * changed the order of special keywords to keep alphabetic sorting

  * harbour/source/compiler/harbour.c
     % some minor optimizations in aliased expressions
     ! added protection in hb_compIsJump() to avoid possible problems
       when this function is executed after replacing some code with
       jumps by series of NOOPs in optimizations process

  * harbour/source/compiler/hbfix.c
     * better optimization of PCODE generated for logical expressions

  * harbour/source/compiler/hbfunchk.c
     % use binary search instead of linear scan

  * harbour/source/rtl/minmax.c
     ! fixed GPF when MIN() or MAX() function is called with less then
       two parameters

  * harbour/source/vm/itemapi.c
     * minor optimization and formatting
2007-01-05 07:41:20 +00:00
Przemyslaw Czerpak
7a13cae5e3 2006-12-27 15:00 UTC+0100 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/include/hbcomp.h
  * harbour/include/hbcompdf.h
  * harbour/include/hberrors.h
  * harbour/include/hbexpra.c
  * harbour/include/hbexprb.c
  * harbour/include/hbpcode.h
  * harbour/include/hbxvm.h
  * harbour/source/common/expropt1.c
  * harbour/source/compiler/genc.c
  * harbour/source/compiler/gencc.c
  * harbour/source/compiler/harbour.c
  * harbour/source/compiler/harbour.y
  * harbour/source/compiler/harbour.yyc
  * harbour/source/compiler/hbdead.c
  * harbour/source/compiler/hbfix.c
  * harbour/source/compiler/hbgenerr.c
  * harbour/source/compiler/hblbl.c
  * harbour/source/compiler/hbpcode.c
  * harbour/source/compiler/hbstripl.c
  * harbour/source/vm/hvm.c
    + added support for passing optional parameters to called function, f.e.:
         proc p( a, b, ... )
         qout( a, b, "X", ... )
    * forbid creating function pointer when function is used with parameters,
      f.e.: x:=@f1(1,2,3)

  * harbour/source/compiler/complex.c
    * cleaned all restrictions on reserved words I've found - if I missed
      sth then please inform me. The previous behavior and some error
      messages are used with -kc compiler switch

  * harbour/source/rtl/symbol.prg
  * harbour/source/rtl/tobject.prg
    ! eliminated limitations in number of constructor parameters
      (new syntax with passing optional parameters used)
2006-12-27 14:01:52 +00:00
Przemyslaw Czerpak
f63975287b 2006-12-18 19:30 UTC+0100 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/config/w32/bcc32.cf
    * cleanup
  + harbour/config/w32/xcc.cf
    + added XCC support

  * harbour/contrib/btree/hb_btree.c
    * use hb_vmAtInit()/hb_vmAtExit() instead of INIT/EXIT functions defined
      from C code

  * harbour/contrib/libct/tab.c
    * casting

  * harbour/contrib/odbc/odbc.c
    ! removed #include <malloc.h> - it should not be used with new C
      compilers
      I think that we should replace this library with hbodbc from xHarbour.

  * harbour/contrib/ole/ole2.c
    * updated for XCC

  * harbour/include/hbdefs.h
    * include stdint.h if available

  * harbour/source/compiler/complex.c
    ! fixed yet another stupid mistake in WITHOBJECT token

  * harbour/include/hbpcode.h
  * harbour/include/hbxvm.h
  * harbour/source/compiler/genc.c
  * harbour/source/compiler/gencc.c
  * harbour/source/compiler/hbdead.c
  * harbour/source/compiler/hbfix.c
  * harbour/source/compiler/hblbl.c
  * harbour/source/compiler/hbpcode.c
  * harbour/source/compiler/hbstripl.c
  * harbour/source/vm/hvm.c
    + added HB_P_SWAP <n> PCODE

  * harbour/include/hbcompdf.h
  * harbour/include/hbexpra.c
  * harbour/include/hbexprb.c
  * harbour/include/hbexprc.c
  * harbour/include/hbexprop.h
    ! fixed GPF during compilation of @:var, @:&var, @o:&var
    + added support for @o:&var and @:var, @:&var inside WITH OBJECT
      statement
    * changed PCODE generated of ++,--,+=,-=,...
      Now left side expression is evaluated _ONLY_ once and when object
      messages are used it's guarantied that exactly the same object
      variable will be used. It also fixes some problems which exists
      in Clipper. This optimization is enabled by -kh flag (by default)
      and can be disabled with -kc.
    % optimize ald macros in ++,--,+=,-=,... operations
    * add automatically "_" prefix when macro message is used in assignment
      context, f.e.:
         s:="osCode"
         o:=errorNew()
         ? o:&s
         o:&s := 100
         ? ++o:&s
         ? o:&s *= 5

  * harbour/include/hblang.ch
    - removed #xtranslate - this file is included by C code and some C
      compiler do not like unknown directives

  * harbour/utils/hbtest/rt_math.prg
    + added test code for <op>assign and (pre/post)(inc/dec)rementation,
      macro messages and WITH OBJECT

  * harbour/source/compiler/harbour.c
  * harbour/source/rdd/dbf1.c
  * harbour/source/rtl/errorapi.c
  * harbour/source/rtl/hbgtcore.c
  * harbour/source/rtl/gtdos/gtdos.c
  * harbour/source/rtl/gtos2/gtos2.c
  * harbour/source/rtl/gtpca/gtpca.c
  * harbour/source/rtl/gtsln/gtsln.c
  * harbour/source/rtl/gtstd/gtstd.c
  * harbour/source/rtl/gtwin/gtwin.c
    * casting and warning cleanup

  * harbour/utils/Makefile
    + added $(HB_UTILS)

  - harbour/utils/hbpp/hbpp.h
  + harbour/utils/hbpp/hbppdef.h
  * harbour/utils/hbpp/hbpp.c
  * harbour/utils/hbpp/hbppcomp.c
  * harbour/utils/hbpp/hbppcore.c
  * harbour/utils/hbpp/hbpplib.c
  * harbour/utils/hbpp/hbpptbl.c
  * harbour/utils/hbpp/pragma.c
    * renamed hbpp.h to hbppdef.h to avoid possible conflict with hbpp.h
      in include directory
    * casting and warning cleanup
2006-12-18 18:34:44 +00:00
Przemyslaw Czerpak
93e0db5a23 2006-12-09 17:10 UTC+0100 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/config/bsd/gcc.cf
  * harbour/config/darwin/gcc.cf
  * harbour/config/dos/bcc16.cf
  * harbour/config/dos/djgpp.cf
  * harbour/config/dos/owatcom.cf
  * harbour/config/dos/rsx32.cf
  * harbour/config/hpux/gcc.cf
  * harbour/config/linux/gcc.cf
  * harbour/config/linux/owatcom.cf
  * harbour/config/os2/gcc.cf
  * harbour/config/os2/icc.cf
  * harbour/config/sunos/gcc.cf
  * harbour/config/w32/bcc32.cf
  * harbour/config/w32/gcc.cf
  * harbour/config/w32/mingw32.cf
  * harbour/config/w32/msvc.cf
  * harbour/config/w32/rsxnt.cf
  * harbour/config/w32/watcom.cf
    * added respecting HB_GT_DEFAULT, though it's quite possible that I'll
      remove it at all soon.
    * some other cleanup

  * harbour/source/compiler/complex.c
    ! fixed wrongly replicated from FLEX lexer condition used to DECLARE.
      Now they should be the same as in FLEX lexer but IMHO they are not
      Clipper compatible.

  * harbour/source/compiler/gencli.c
  * harbour/source/compiler/gencobj.c
  * harbour/source/compiler/genhrb.c
  * harbour/source/compiler/genjava.c
  * harbour/source/compiler/genobj32.c
  * harbour/source/compiler/harbour.c
  * harbour/source/rtl/hbffind.c
  * harbour/source/pp/ppcore.c
  * harbour/source/rdd/workarea.c
    ! fixed sizes of some C stack buffers and strncpy() parameters
    * use hb_strn*() instead of strn*() in few places to be sure that 0
      is always stored in destination buffer

  * harbour/source/rtl/gtcgi/gtcgi.c
    * change reported GT name from "Standard stream console" to
      "Raw stream console" to make it differ then GTSTD one.
2006-12-09 16:11:10 +00:00
Przemyslaw Czerpak
4dfc616250 2006-12-01 18:55 UTC+0100 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/bin/pack_src.sh
    + added packing *.yy[ch] files

  * harbour/makefile.bc
  * harbour/makefile.vc
  * harbour/include/hbcomp.h
  * harbour/include/hbcompdf.h
  * harbour/include/hbexpra.c
  * harbour/include/hbexprb.c
  * harbour/include/hbexprc.c
  * harbour/include/hbexprop.h
  * harbour/include/hbpp.h
  * harbour/source/common/expropt1.c
  * harbour/source/common/expropt2.c
  * harbour/source/compiler/Makefile
  * harbour/source/compiler/complex.c
  * harbour/source/compiler/harbour.c
  * harbour/source/compiler/harbour.l
  * harbour/source/compiler/harbour.y
  * harbour/source/compiler/harbour.yyc
  * harbour/source/compiler/harbour.yyh
  * harbour/source/compiler/hbgenerr.c
  * harbour/source/macro/macro.y
  * harbour/source/macro/macro.yyc
  * harbour/source/pp/ppcore.c
    + added hb_comp prefix to grammar/lexer compiler public functions to
      reduce possible conflict with 3-rd party code which may use default
      yy prefix.
    ! do not use bison destructors for expressions. Internal bison logic
      cannot properly detect if expression was used or not in some of our
      grammar rules and it's possible that some expressions will not be freed
      and some other freed twice.
    ! added protection against multiple destructors execution for CBSTART
      and LITERAL tokens
    * added small garbage collector for deallocating expressions which were
      not freed (such situation can happen in syntax errors)
    % some optimizations in used structures to reduce their sizes
    + added protection against execution PCODE optimizations for functions
      which were not cleanly compiled.

  * harbour/source/rtl/idle.c
    * use const in nanosec() timeout declaration
2006-12-01 18:00:53 +00:00
Przemyslaw Czerpak
33ccad6661 2006-11-27 02:10 UTC+0100 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/tests/codebl.prg
  * harbour/tests/langmsg.prg
  * harbour/utils/hbpptest/pp_test.prg
  * harbour/utils/hbpptest/pretest.prg
  * harbour/samples/pe/license.txt
    * removed carriage return (\r) characters

  * harbour/include/hbcomp.h
  * harbour/include/hbapi.h
  * harbour/include/hbcompdf.h
  * harbour/include/hbexprb.c
  * harbour/include/hbexprop.h
  * harbour/source/vm/macro.c
  * harbour/source/compiler/hbcomp.c
  * harbour/source/compiler/complex.c
  * harbour/source/compiler/harbour.c
  * harbour/source/compiler/harbour.l
  * harbour/source/compiler/harbour.y
  * harbour/source/compiler/genjava.c
  * harbour/source/compiler/hbcomp.c
  * harbour/source/compiler/hbident.c
  * harbour/source/compiler/hbpcode.c
  * harbour/source/compiler/ppcomp.c
    * separated HB_COMP and HB_MACRO definitions and added HB_COMMON
      structure used when HB_COMMON_SUPPORT macro is set
    * hide HB_MACRO internal definitions in hbapi.h when HB_MACRO_SUPPORT
      is not set
    These modifications should help in future compiler and macro compiler
    integration into single binary.

    + added clipper compatible error message in unclosed structures
      In general we should cleanup rules to make error reporting more
      user friendly and Clipper compatible
    % eliminated unnecessary allocations
    + added int mode member to common part of HB_COMP and HB_MACRO
      structure. It's initialized to HB_MODE_MACRO or HB_MODE_COMPILER
    + add TOFIX note about memory leaks in cParamTypes and pParamClasses
      members of COMDECLARED structure. It's a part of unfinished strong
      typing code. I do not know what Ryszard plan to do with it so I'm
      leaving it as is. The part of strong typing which were operating
      on emulated HVM stack has been removed.
    * removed static variables from genjava.c. Also gencli.c and genobj32.c
      should be fixed but this will not make this code working so I haven't
      touched it.
    * changed 3-rd parameter of hb_compIdentifierNew() from BOOL to int.
      Now it can have the following values: HB_IDENT_STATIC, HB_IDENT_FREE,
      HB_IDENT_COPY. This modification will allow in the future using common
      for static and dynamic symbol hash table without additional source code
      changes. I also plan to use identifier hash table in PP the reduce
      number of memory allocations and speed-up preprocessing by using
      second level hashing for hash keys.

  * harbour/source/common/expropt1.c
  * harbour/source/common/expropt2.c
    * changed HB_MACRO_SUPPORT to HB_COMMON_SUPPORT to automatically detect
      possible conflicts between compiler and macro compiler
    ! removed first detected conflict which existed for long time
    + added hb_compExprMacroAsAlias() function to convert HB_ET_VARIABLE
      expression to HB_ET_ALIAS.

  * harbour/source/macro/macro.y
    ! fixed using prefix&macro-> and &macro.sufix-> when macro cannot be
      substituted by compiler, f.e.:
         M->v := NIL
         x := "&v.1->fld"
         M->v := "v"
         M->v1:= "data"
         ? &x
    ! fixed memory leak in macro substituted expression compilation

  * harbour/source/vm/macro.c
    ! fixed initialization of some HB_MACRO members
    ! fixed value returned for type("&V->F") when alias does not exist
    - removed not longer used hb_comp_bShortCuts global variable
2006-11-28 01:10:34 +00:00
Przemyslaw Czerpak
74deff4644 2006-11-25 19:30 UTC+0100 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/include/hbexpra.c
  * harbour/include/hbexprb.c
  * harbour/include/hbexprc.c
  * harbour/include/hbexprop.h
  * harbour/source/common/expropt1.c
  * harbour/source/common/expropt2.c
  * harbour/source/compiler/complex.c
  * harbour/source/compiler/harbour.c
  * harbour/source/compiler/harbour.y
  * harbour/source/macro/macro.y
    + added support for strings with with ASCII NUL character
      Strings with ASCII NUL character are not stored with hash table
      but dynamically allocated/deallocated
    ! fixed compilation of strings with ASCII NUL character which
      can appear in escaped strings e"..." or after compiler chr(0)
      optimization
    % removed some not longer necessary memory allocations

  * harbour/source/vm/macro.c
    ! fixed GPF caused by HB_MACRO structure double freeing
    - removed some code which was added as workaround for the old
      behavior of HVM QUIT and false FM stat memory leak reports.
      It's not longer necessary in current HVM.

  * harbour/source/common/hbstr.c
    ! fixed final string size calculation in extended strings

  * harbour/source/compiler/gencli.c
    * cleaned BCC warning
2006-11-25 18:33:28 +00:00
Przemyslaw Czerpak
e6a3baea64 2006-11-24 19:10 UTC+0100 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/config/bsd/gcc.cf
  * harbour/config/darwin/gcc.cf
  * harbour/config/dos/djgpp.cf
  * harbour/config/dos/owatcom.cf
  * harbour/config/hpux/gcc.cf
  * harbour/config/linux/gcc.cf
  * harbour/config/linux/owatcom.cf
  * harbour/config/os2/gcc.cf
  * harbour/config/sunos/gcc.cf
  * harbour/config/w32/bcc32.cf
  * harbour/config/w32/gcc.cf
  * harbour/config/w32/mingw32.cf
  * harbour/include/hbcomp.h
  * harbour/include/hbcompdf.h
  * harbour/include/hberrors.h
  * harbour/include/hbexpra.c
  * harbour/include/hbexprb.c
  * harbour/include/hbver.h
  * harbour/source/common/hbstr.c
  * harbour/source/common/hbver.c
  * harbour/source/compiler/Makefile
  * harbour/source/compiler/cmdcheck.c
  * harbour/source/compiler/complex.c
  * harbour/source/compiler/gencli.c
  * harbour/source/compiler/genjava.c
  * harbour/source/compiler/genobj32.c
  * harbour/source/compiler/harbour.c
  - harbour/source/compiler/harbour.simple
  - harbour/source/compiler/harbour.slx
  - harbour/source/compiler/harbour.sly
  * harbour/source/compiler/harbour.y
  * harbour/source/compiler/hbgenerr.c
  - harbour/source/compiler/hbslex.c
  - harbour/source/compiler/hbstrong.c
  * harbour/source/compiler/hbusage.c
  - harbour/source/compiler/simplex.c
  * harbour/source/macro/Makefile
  - harbour/source/macro/macro.slx
  - harbour/source/macro/macroslx.c
  * harbour/source/pp/ppcore.c
  * harbour/utils/hbpp/hbppcomp.c
    - removed SIMPLEX references
    ! fixed memory leak in request _GET_
    * use hb_compIdentifiersNew() in INLINE and AUTOOPEN structures
      members
    * eliminated all internal exit() calls. Now hb_compGenError() with
      fatal errors does not interrupt application but only sets
         HB_COMP_PARAM->fExit = TRUE;
      What should cause silent clean application close.
      Please keep it in mind making future modifications and do not
      introduce and exit() function call.
    + added support for \x<hex> and \<oct> quoting in extended strings
      (just like in C). Warning !!!. Embedded 0 bytes are supported by
      PP, lexer and expression optimizer but not by bison. To make them
      working it will be necessary to change Literal terminal symbol
      holder and add length field in bison rules and also change the hash
      table used to hold identifiers, literals and macros to store and use
      real string length. If someone will try to use strings with embedded
      0 now then they will be cut but nothing worser should happen.
2006-11-24 18:10:07 +00:00
Przemyslaw Czerpak
9cd2098d6d 2006-11-23 20:00 UTC+0100 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/include/hbapi.h
  * harbour/include/hbcomp.h
  + harbour/include/hbcompdf.h
  * harbour/include/hberrors.h
  * harbour/include/hbexpra.c
  * harbour/include/hbexprb.c
  * harbour/include/hbexprc.c
  * harbour/include/hbexprop.h
  * harbour/include/hbmacro.h
  * harbour/include/hbpp.h
  * harbour/include/hbvm.h
  * harbour/source/common/expropt1.c
  * harbour/source/common/expropt2.c
  * harbour/source/compiler/Makefile
  * harbour/source/compiler/cmdcheck.c
  * harbour/source/compiler/complex.c
  * harbour/source/compiler/genc.c
  * harbour/source/compiler/gencc.c
  * harbour/source/compiler/gencli.c
  * harbour/source/compiler/gencobj.c
  * harbour/source/compiler/genhrb.c
  * harbour/source/compiler/genjava.c
  * harbour/source/compiler/genobj32.c
  * harbour/source/compiler/harbour.c
  * harbour/source/compiler/harbour.l
  * harbour/source/compiler/harbour.y
  * harbour/source/compiler/hbcomp.c
  * harbour/source/compiler/hbdead.c
  * harbour/source/compiler/hbfix.c
  * harbour/source/compiler/hbfunchk.c
  * harbour/source/compiler/hbgenerr.c
  * harbour/source/compiler/hbident.c
  * harbour/source/compiler/hbpcode.c
  * harbour/source/compiler/ppcomp.c
  * harbour/source/macro/macro.y
  * harbour/source/pp/ppcore.c
  * harbour/source/pp/ppgen.c
  * harbour/source/pp/pplib.c
  * harbour/source/vm/cmdarg.c
  * harbour/source/vm/estack.c
  * harbour/source/vm/fm.c
  * harbour/source/vm/macro.c
  * harbour/utils/hbpp/hbpp.c
  * harbour/utils/hbpp/hbpp.h
  * harbour/utils/hbpp/hbppcomp.c
  * harbour/utils/hbpp/hbppcore.c
  * harbour/utils/hbpp/hbpplib.c
  * harbour/utils/hbpp/pragma.c
    * changed the internal compiler API to be MT safe.
      All global and static non constant variables replaced by
      HB_COMP structure which have all compiler context settings.
      It's possible to allocate simultaneously many compiler contexts
      and compile code. Only constant/read only variables are shared.
      In macro compiler HB_COMP is replaced by HB_MACRO.
      In source code I everywhere used to macros: HB_COMP_DECL and
      HB_COMP_PARAM which are equivalents of old HB_MACRO_DECL and
      HB_MACRO_PARAM definitions.
      We will only have to change compiler FATAL errors support to
      not execute exit() for non batch systems.
    * make macro compiler fully MT safe
    * removed not longer used definitions and variables
    ! add direct accessing to PP line number information - it fixes missing
      line numbers reported recently
    ! added generating .ppo files when tokens are teken directly by compiler
      - it fixes empty .ppo file problem
    ! clear hb_stack internall variables after removing hb_stack to avoid
      possible GPF if application still works and try to access unexsiting
      hb_stack
    ! do not allocate new memory block when final FM statistic report is
      generated - it fixes problem with GPF when application compiled with
      FM statistic exits and CLIPPER envvar is set.
    ! fixed memory leak hb_cmdargCheck()
    ! added to harbour.y symbol destructors - it should fixes memory leaks
      in syntax errors but it uses quite new bison feature which is not
      fully supported yet. Unfortunately it's also not MT safe and the
      destructors implementation in 1.875c does not respect %parse-param.
      Bison documentation says that it should so I hope it will be fixed
      soon (or maybe even already is in the newest bison versions) before
      I'll add multi context compilation support. If not then I will have
      to add some workaround. I can pass compiler context pointer inside
      YYSTYPE using hack in a lexer but it will force really huge number
      modifications in existing bison rules so probably it will be much
      easier to fix bison or write a small tool to update generated parser.
    * other modifications - the total size of patch is nearly 1MB and
      detail description will have to take me few days.
2006-11-23 18:57:54 +00:00
Przemyslaw Czerpak
b78cf8e34b 2006-11-21 05:05 UTC+0100 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/source/compiler/complex.c
  + harbour/source/compiler/hbcomp.c
    * added missing header and file in my previous commit
2006-11-21 04:06:19 +00:00
Przemyslaw Czerpak
0cada37011 2006-11-21 03:30 UTC+0100 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/common.mak
  * harbour/source/compiler/Makefile
  * harbour/include/hbcomp.h
  * harbour/include/hbexprb.c
  * harbour/include/hbexprc.c
  * harbour/source/compiler/cmdcheck.c
  * harbour/source/compiler/genc.c
  * harbour/source/compiler/harbour.c
  * harbour/source/compiler/harbour.l
  * harbour/source/compiler/harbour.slx
  * harbour/source/compiler/harbour.y
  * harbour/source/compiler/hbgenerr.c
  * harbour/source/compiler/hbident.c
  * harbour/source/compiler/ppcomp.c
  + harbour/source/compiler/complex.c
    + added new PP based compiler lexer - it's smaller, MT safe and a
      little bit faster then then the FLEX version.
    + added HB_COMP structure to hold compiler data in future MT version
    + added global variable HB_COMP_PTR hb_comp_data to make conversion
      to MT easier - now it holds only PP and lexer data.
    * update PP related code in compiler to be MT safe
    + added %pure-parser, %parse-param and %lex-param for bison to generate
      MT safe grammar parser.
    * updated FLEX to work with recent compiler modifications and pure-parser
      bison API

  * harbour/makefile.bc
  * harbour/makefile.vc
  * harbour/source/macro/Makefile
  * harbour/source/macro/macro.l
  * harbour/source/macro/macro.y
  * harbour/source/macro/macrolex.c
    * use hb_macro prefix instead of hb_comp in bison/flex parser/lexer
      used in macro compiler to avoid possible conflicts in the future
    * separated lexer data

  * harbour/include/hbapi.h
  * harbour/include/hbpp.h
  * harbour/source/pp/ppcore.c
  * harbour/source/pp/ppgen.c
  * harbour/source/pp/pplib.c
  * harbour/source/vm/macro.c
    * removed not used members from HB_MACRO structure to make it
      cleaner before creating common to compiler and macro compiler
      structure
    + added new token HB_PP_TOKEN_EPSILON
    + added void * cargo parameters passed to executed user functions
    + hb_pp_tokenGet(), hb_pp_tokenToString(), hb_pp_tokenBlockString()
      functions for new PP based compiler lexer

  * harbour/utils/hbpp/hbpp.c
  * harbour/utils/hbpp/hbpp.h
  * harbour/utils/hbpp/hbppcomp.c
  * harbour/utils/hbpp/hbppcore.c
  * harbour/utils/hbpp/hbpplib.c
  * harbour/utils/hbpp/pragma.c
    * updated to compile with recent compiler header file modifications


    PP, new lexer and most of grammar parser should be MT safe. Now we should
    update all compiler functions to pass pointer to HB_COMP data structure
    where we should all current global variables. This structure as first
    member should have HB_CMPCOMMON structure which will hold common to
    compiler and macro compiler data. Ryszard I think you are the best person
    to define this structure.

    We have new lexer which is MT safe but please note that it has to be
    extensively tested so I would like to ask everybody to compile as much
    as possible different code and check if the final programs work as
    expected. Working on new code I removed some limitations existing in
    FLEX though not all. At the beginning I tried to replicate the exact
    FLEX behavior but I've found that in few places it does not work as
    it should so I begin to encode rules in a way which remove some
    limitations. In fact now it's much easier to control some things.
    I kept the FLEX code working and made all necessary modifications
    so it still can be used but keeping FLEX working cost us IMHO too
    much. It's not possible to introduce some improvements to grammar
    parser. All identifiers, keyword and macros returned by new lexer
    are converted to upper letters, do not have to be freed by hb_xfree()
    and is guarantied that will be always accessible. So from grammar file
    we can remove all hb_compIdentifierNew( hb_strupr($1), TRUE ) what
    should give noticeable speed improvement but will break the FLEX code.
    Ryszard and other you will have to decide if we will support FLEX in
    the future. We can also clean the code and remove most of other
    redundant hb_strupr() and hb_strdup() used in many places. BTW only
    one terminal symbol can be returned with lower letters: DOIDENT
    and I make it intentionally so it's possible to use:
         DO prog1 WITH "sth"
    on case sensitive file systems so this symbol should be cloned in
    upper cases as function symbol but used without modification as
    file name. It's current behavior but I'm not sure you will want
    to keep it. Maybe compiler switch to always convert file names
    created from
         DO <id> [WITH <params,...>]
    to lower cases will be better. Please think about it.
2006-11-21 02:29:33 +00:00