Seed7 Release 2019-04-07

Hello,


I have released a new version of Seed7: seed7_05_20190407.tgz
The download is here: https://sourceforge.net/projects/seed7/files
In the Seed7 programming language new statements and operators can
be declared easily. Types are first class objects and therefore
templates/generics need no special syntax. Object orientation is used
when it brings advantages and not in places when other solutions are
more obvious.


Seed7 is covered by the GPL (and LGPL for the Seed7 runtime library).


Changelog:
- The program db7.sd7 (Database Inspector) has been improved to use a
    scrollable list of tables instead of radio buttons for the selection
    of a table.
- The example program findchar.sd7 has been added. Findchar is an
    utility program to search for specific characters in files.
- The new library iobuffer.s7i has been added. This library supports
    buffering of files.
- The new library mixarith.s7i has been added. This library supports
    mixing of arithmethic operations between numeric types.
- The file type fileInTar has been added to the library tar.s7i. This
    file type allows that a specific file from a tar archive can be
    opened. The functions open, getc, gets, eof, hasNext, length, seek,
    tell, and openFileInTar have been added to support the file type
    fileInTar.
- The functions skipClassicComment and getSimpleStringLiteral have been
    added to the libraries scanfile.s7i and scanstri.s7i.
- The makefile mk_emccl.mak has been added. This makefile supports
    compiling with the emcc C compiler from Emscripten under Linux. The
    support of Emscripten is experimental (see also src/read_me.txt).
- The deprecated functions float2Bits and bits2Float have been removed
    from bin32.s7i and bin64.s7i. The functions bin32(), bin64() and
    float() can be used instead, to convert between float and bits in
    IEEE 754 representation.
- In the programs chkbig.sd7, chkovf.sd7, chkset.sd7 and chkstr.sd7
    large functions have been split into smaller functions. This avoids
    Stack errors with Emscripten.
- Tests for allowed field names and CLOB fields have been added to
    chkdb.sd7. The functions create, testFieldNames and testClobField
    have been added to chkdb.sd7.
- The primitive actions BIG_PARSE, BST_PARSE, FLT_PARSE and INT_PARSE
    have been renamed to BIG_PARSE1, BST_PARSE1, FLT_PARSE1 and
    INT_PARSE1 respectively. This actions parse the first argument
    instead of the third argument. The libraries bigint.s7i, bstring.s7i,
    float.s7i and integer.s7i have been improved to use the new actions.
- In several libraries the 'parse' operator has been changed to call
    a function with the name of the type.
- In fil.unx.c the function setupFiles has been improved to correctly
    mount the file system root for emscripten and node.js.
- In sql_fire.c, sql_my.c the support for BLOB and CLOB fields has been
    improved.
- In sql_oci.c, sql_odbc.c and sql_post.c the function
    processStatementStri() has been improved to accept strings enclosed
    in single quotes (') and double quotes (").
- The files db_fire.h and sql_fire.c have been changed to define the
    database client functions with the calling convention __stdcall.
- The files db_post.h, db_lite.h, sql_post and sql_lite.c have been
    changed to define the database client functions with the calling
    convention __cdecl.
- The database driver sql_fire.c has been improved:
    - The function getClob() has been added. This function is used by
        sqlColumnStri() to get a CLOB.
    - The function sqlBindStri() has been improved to work for CLOBs
        and to raise RANGE_ERROR for BLOBs.
    - The function sqlColumnStri() has been improved to work for BLOBs
        and CLOBs.
    - The function sqlColumnBStri() has been improved to work for BLOBs
        and to raise RANGE_ERROR for CLOBs.
    - The function sqlStmtColumnName() has been improved to assume that
        the name of a column is encoded with UTF-8.
- The database driver sql_my.c has been improved:
    - The function processStatementStri() has been improved. In strings
        delimited with single quotes (') backslashes (\) are optionaly
        replaced with double backslashes (\\). Strings delimited with
        double quotes (") are converted into strings, that are delimited
        with a backtick (`).
    - The function setupResultColumn() has been improved to distinguish a
        BLOB from a CLOB.
    - The function sqlColumnStri() has been improved to work for BLOBs
        and CLOBs.
    - The function sqlColumnBStri() has been improved to work for BLOBs
        and to raise RANGE_ERROR for CLOBs.
    - The function determineIfBackslashEscapes has been introduced. This
        function determines, if a backslash is used as escape character in
        string literals. In this case processStatementStri() will double
        escaping backslashes in string literals.
- The database driver sql_odbc.c has been improved:
    - The management of buffer memory in bind functions has been improved
        for the data types SQL_DECIMAL, SQL_NUMERIC, SQL_CHAR, SQL_VARCHAR,
        SQL_LONGVARCHAR, SQL_WCHAR, SQL_WVARCHAR, SQL_WLONGVARCHAR,
        SQL_BINARY, SQL_VARBINARY and SQL_LONGVARBINARY.
- The database driver sql_post.c has been improved:
    - The function setupDll has been improved to open the dll
        libeay32.dll, when necessary.
    - In the function sqlBindStri() the binding of a field with the type
        BYTEAOID (used for BLOB data) has been improved, to work correct,
        when the string contains a zero byte ('\0;').
    - The function sqlColumnBigRat() has been improved to process fields
        with the type FLOAT8OID as double instead of float.
- The program chkccomp.c has been improved. Now the C compiler used to
    compile chkccomp.c can be different from the C compiler checked by
    chkccomp.c. E.g.: For Emscripten chkccomp.c is compiled with gcc,
    but the checked C compiler is emcc.
- In chkccomp.c the function determineFseekFunctions has been improved
    to check fseek() and ftell() without access to the local files.
- In chkccomp.c the functions to configure access to PostgreSql,
    Oracle and Firebird databases has been improved.
- In chkccomp.c code to determine NULL_DEVICE, HAS_CDECL, HAS_STDCALL,
    INTPTR_T_DEFINED, PRINTF_ROUNDING, LINE_DIRECTIVE_ACCEPTS_UTF8,
    HAS_SETJMP and HAS_SIGSETJMP has been added or improved.
- The file sigutl.c has been improved to work correct, when neither
    signal() nor sigaction() are present.
- Log functions have been added or improved in con_emc.c, con_inf.c,
    sql_my.c, sql_post.c and timlib.c.
- Exprerimental code has been added to con_emc.c.


Regards,
Thomas Mertes


--
Seed7 Homepage: http://seed7.sourceforge.net
Seed7 - The extensible programming language: User defined statements
and operators, abstract data types, templates without special
syntax, OO with interfaces and multiple dispatch, statically typed,
interpreted or compiled, portable, runs under linux/unix/windows.

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