A new version of the extensible programming language Seed7, has been released.
See: http://seed7.net
Changelog:
- The LTO-related warnings during the build of Seed7 have been eliminated. Many thanks to "apocelipes" for changing the makefiles to use -flto=auto.
- The program chkccomp.c has been improved to always define the macro DEFINE_INITIALIZER_MACRO. Many thanks to Bruce Axtens for pointing out that a build with mk_msvc.mak failed.
- In the FAQ explanations of software maintainability and result variables have been added. The explanations of simple function profiling, readability and variable initialization have been improved. The types parseError, pollData and listener have been added to the explanation about syntax highlighting.
- Chapters about the types parseError, pollData and listener have been added to the manual. The chapters about the graphics library, the foreign function interface and errors have been improved.
- The example programs lst80bas.sd7, lst99bas.sd7 and lstgwbas.sd7 have been added. These programs decode and list tokenized BASIC programs.
- The bas7.sd7 (basic interpreter) example program has been improved:
- FOR-loops have been changed to match the behavior of other BASIC interpreters.
- A warning, if a variable got its value from a for-loop, has been added.
- Support for names with underline (_) has been added.
- Support for double precision literals has been added.
- Support for string literals has been improved to allow quotation marks in string literals.
- Support for the OPEN statement has been improved. An additional variant of the OPEN statement is supported now.
- The error handling in LET, GET, PUT, MID$, WHILE, WEND, LOAD, BLOAD, CHAIN and RUN statements has been improved.
- The error handling in the functions ASC, LOG, SQR, CINT, CLNG, FIX, LEFT$, MID$, RIGHT$, TAB() and SPC() has been improved.
- A recognition of OVERFLOW errors has been added for multiplication and division operations.
- The ON ERROR handling is reset when a file is loaded.
- Constants for error codes have been introduced.
- Support for the statements OPTION BASE, REDIM, SUBEXIT, SUBEND and ACCEPT has been added.
- Now TIMER and PCOPY statements are recognized.
- The support for the statements DEFDBL, DEFINT, DEFLNG, DEFSNG, PRINT, LPRINT, DISPLAY, DEF SEG, BLOAD, BSAVE and OUT has been improved.
- The support for the subroutines CHAR, CLEAR, KEY and SOUND has been improved.
- Support for the function ENVIRON$ has been added.
- The support for the function VARPTR$ has been improved.
- Support for an alternate POS function, which searches in a string, has been added.
- The support for LONG, INTEGER, FLOAT and DOUBLE variables has been improved in DIM and GET statements.
- In CGA, EGA and VGA images checks for the width and height have been added. They are checked for their presence and that they are greater than 0.
- The name INSTR is allowed as variable and function
- The support for the RUN command in interactive mode has been improved.
- If the keyword GOTO or GOSUB follows THEN or ELSE it is not considered to be a label.
- The scrolling in graphics mode has been improved.
- Support for image variables in SCREEN 9 mode has been added.
- The check for the file name extension ".bas" has been fixed to work for short file names.
- The logging of DO, LINE INPUT, LINPUT, KEY, LET, NEXT, GET, EXIT, MID$ and VAL has been improved.
- The pv7.sd7 example program has been improved to display an image if the file extension does not fit but the image magic does fit.
- The Seed7 compiler (s7c) has been improved:
- The handling of dynamic types has been fixed to work correclty if a derived type does not use type_implements_interface().
- The initialization of array and hash constants has been improved to avoid that a sanitizer complains about uninitialized data.
- The compilation of a library has been improved to generate code for all objects.
- The function write_file_head() has been improved to use multi-line string literals.
- The program chkfil.sd7 has been improved:
- A test case for a derived type which does not use type_implements_interface() has been added.
- Now templates are used to declare raisesRangeError() and raisesFileError().
- The checks for file operations with a closed file have been refactored to use raisesFileError().
- The functions check_use_after_close1() and check_use_after_close2() have been added.
- Checks have been added to verify that inputReady(), getTerminatedString() and setbuf() with a closed file raise FILE_ERROR.
- In chkflt.sd7 tests of str() with negative float values have been added.
- In chkdb.sd7 tests for simple, fraction, combined and advanced durations have been added. Checks for positive and negative durations are done in separate test functions.
- In duration.s7i the function duration() has been improved to check for more invalid values.
- The library db_prop.s7i has been improved to allow fractions of a second in MySQL durations. The duration type for MS SQL-Server has been changed as well.
- In draw.s7i the function rectTo() has been improved to work with any diagonally opposite corners of the rectangle.
- In draw.s7i the undocumented functions color(col) and color(col,col) are deprecated.
- Unnecessary calls of color() have been removed from bas7.sd7, castle.sd7, dnafight.sd7, lander.sd7, percolation.sd7 and tetg.sd7.
- In tls.s7i the ECDSA verification has been improved to use curve and key from the certificate.
- In tls.s7i the function negotiateSecurityParameters has been improved to avoid writing to broken pipe.
- The library gethttp.s7i has been improved:
- The function getHttp() has been split into getHttpHeader() and getHttpBody().
- The function getHttpHeader() has been refactored to use a case statement.
- In getHttpHeader() the expression pos(line, ":") has been replaced with colonPos.
- The function getHttpLocation() has been refactored to call getHttpHeader().
- The functions sendGet() getHttpHeader() and getHttpLocation() have been improved to use cookies in URL redirections.
- A function to show a httpLocation has been added.
- The function getHttpBody() has been changed to return an empty string if the charset is not supported or the encoding is wrong.
- In tga.s7i tgaHeader parameters have been changed to be in-parameters if the parameter is not changed.
- In pixmap_file.s7i the function v_scroll() has been improved to erase an area with the background color.
- Support for the actions DRW_COLOR, DRW_BACKGROUND, DRW_RECT, DRW_POINT, DRW_LINE, DRW_CIRCLE, DRW_ARC2, DRW_ARC, DRW_FARCPIESLICE, DRW_FARCCHORD, DRW_FCIRCLE and DRW_FELLIPSE has been removed from interpreter and compiler. These actions have not been used for years.
- The unused source files con_con.c, con_cur.c, con_tcp.c, con_cap.c and con_x11.c have been removed.
- In common.h macro definitions of integer decimal and hexadecimal sizes have been added (e.g. INT_DECIMAL_SIZE, UINT_DECIMAL_SIZE, INT_HEXADECIMAL_SIZE, LONG_DECIMAL_SIZE, ULONG_DECIMAL_SIZE, ...). These macros are used in various files for declarations of buffers used by integer to decimal or hexadecimal conversions.
- Definitions of the log2Function() and log2Error() macros have been added to common.h. These macros log to stderr.
- In drw_x11.c, drw_win.c and drw_emc.c the checks for RANGE_ERROR in the drawing functions for rectangles, points, lines, ellipses, circles, filled circles, arc pie slices, arc chords, arcs and arcs with width have been improved.
- In drw_x11.c, drw_win.c and drw_emc.c checks have been added to verify that startAngle and sweepAngle are in the allowed range.
- In drw_x11.c, drw_emc.c and drw_win.c the checks for RANGE_ERROR in the functions drwCopyArea(), drwCapture(), drwGetPixel(), drwGetPixmap(), drwImage(), drwNewPixmap(), drwPutScaled() and drwSetPos() have been improved.
- The file drw_x11.c has been improved:
- Now the static variables emptyCursor and mygc are initialized.
- The function drawClose() has been improved to free emptyCursor.
- In the function drawInit() an initialization of emptyCursorColor has been added. This avoids that XCreatePixmapCursor() uses undefined XColor data.
- The element parentWindow has been added to x11_winRecord. Code to maintain the usage_count of parent windows has been added as well.
- In drw_emc.c code to maintain the usage_count of the existing parentWindow element of emc_winRecord has been added.
- In drw_drv.h, drw_dos.c, drw_emc.c, drw_win.c, drw_x11.c and drw_act.s7i the const_ has been removed from the type of the parent_window parameter in drwOpenSubWindow().
- In drw_win.c the generation and usage of pointList values has been improved to avoid integer overflow. In drwGenPointList() signed 31-bit x and y coordinates are accepted and stored in a pointList. In drwPolyLine() and drwFPolyLine signed 31-bit x and y values are accepted. Adding two signed 31-bit integers results in a signed 32-bit integer which is allowd in GDI functions.
- In tim_rtl.c the function assignIsoDuration() has been added. It is called from sqlColumnDuration() in sql_lite.c.
- Support for the configuration values CONSTRUCTOR_ATTRIBUTE, DEFINE_INITIALIZER_MACRO, CC_OPT_POSITION_INDEPENDENT_CODE, CASTING_GETS_A_UNION_ELEMENT and UNIONS_CAN_CONVERT_TO_GENERIC has been added to cc_conf.s7i, confval.sd7, cmd_rtl.c and chkccomp.c.
- In dcllib.c the function dcl_var() has been improved to consider parameters of BLOCKOBJECT in a var-declaration.
- In match.c the function substitute_params() has been improved to assure that created_object is not undefined.
- In cmd_unx.c the function unsetenv7() has been improved to avoid that 'found' becomes a dangling pointer.
- In infile.c an include of sys/stat.h has been added if HAS_MMAP is not set.
- In striutl.c the function cstriAsUnquotedCLiteral() has been added. This function is used for logging in fwd_term.c, trm_cap.c and trm_inf.c.
- In error.c definitions of sprintfIntCharDescr(), sprintfLongCharDescr(), INT_CHAR_DESCR_BUFFER_SIZE and LONG_CHAR_DESCR_BUFFER_SIZE have been added.
- In traceutl.c the functions prot_cstri(), prot_cstri8() and prot_string() have been improved to call conWrite() only if CONSOLE_WCHAR is defined.
- In traceutl.c the function list_node_names() has been improved to avoid a buffer overflow.
- In big_rtl.c and big_gmp.c a memory leak in bigHexCStri() has been closed. Logging functions have been refactored to call at most one bigHexCStri() in a printf().
- In emc_utl.c the function doExit() has been improved to free all atExitDataType elements of the atExitLifoStack.
- In soc_rtl.c the definition of MAX_SOCK_ADDRESS_LEN has been fixed. Declarations of serviceName buffers have been changed as well. Since ports are unsigned 16-bit integers the type uint16Type is used for them.
- In str_rtl.c the function ustriCmpGeneric() has been improved to assure that the generic value is always initialized. Additionally a MEMORY_ERROR is raised if ALLOC_USTRI() fails.
- In con_inf.c checks, if the console has been initialized, have been added.
- In trm_cap.c the functions my_tgetent(), my_tgetnum(), my_tgetflag(), my_tgetstr() and getcaps() have been refactored. Several fixed size buffers have been removed and for the remaining ones buffer overflows are avoided.
- In trm_cap.c the functions printCapEscapedStri(), printStriCap() and showCapabilities() have been added.
- In trm_inf.c the functions read_cap_name(), read_int_cap(), read_stri_cap(), assign_cap(), fix_capability() and getcaps() have been refactored. Several fixed size buffers have been removed and for the remaining ones buffer overflows are avoided.
- In trm_inf.c the function fix_capability() has been deactivated with #define USE_FIX_CAPABILITY 0.
- The logging of database passwords has been removed in sql_db2.c, sql_fire.c, sql_ifx.c, sql_lite.c, sql_my.c, sql_oci.c, sql_odbc.c, sql_post.c, sql_srv.c and sql_tds.c.
- In sql_post.c definitions of htons(), ntohs(), htonl() and ntohl() have been added if necessary.
- In sql_lite.c, sql_my.c, sql_fire.c and sql_tds.c a link with usage_count from a prepared statement to the database has been added. Now all database drivers maintain the db link in prepared statements.
- The db link to the database has been added to sqlStmtStruct (in common.h) and preparedStmtStruct (in sql_rtl.c).
- In sql_cli.c, sql_fire.c, sql_lite.c, sql_my.c, sql_oci.c, sql_post.c and sql_tds.c the flag isOpen has been added to to the database struct. The flag isOpen is set when a database is opened and it is cleared when the database is closed with sqlClose().
- The flag isOpen has been added to databaseStruct (in common.h) and dbStruct (in sql_rtl.c).
- In sql_rtl.c the functions sqlBindBigInt(), sqlBindBigRat(), sqlBindBool(), sqlBindBStri(), sqlBindDuration(), sqlBindFloat(), sqlBindInt(), sqlBindNull(), sqlBindStri(), sqlBindTime(), sqlColumnBigInt(), sqlColumnBigRat(), sqlColumnBool(), sqlColumnBStri(), sqlColumnDuration(), sqlColumnFloat(), sqlColumnInt(), sqlColumnStri(), sqlColumnTime(), sqlIsNull(), sqlStmtColumnCount() and sqlStmtColumnName() have been changed to raise DATABASE_ERROR if the database of a prepared statement is not open. The usage of an empty prepared statement raises RANGE_ERROR.
- In sql_rtl.c the functions sqlClose(), sqlCommit(), sqlGetAutoCommit(), sqlPrepare(), sqlRollback() and sqlSetAutoCommit() have been changed to raise DATABASE_ERROR if a closed database is used. The usage of an empty database raises RANGE_ERROR.
- In sql_rtl.c the checks of function pointers have been refactored. Now a NULL function pointer raises DATABASE_ERROR.
- In sql_cli.c, sql_fire.c, sql_lite.c, sql_my.c, sql_oci.c, sql_post.c and sql_tds.c the function freeDatabase() has been improved to call sqlClose() only if the database is still open.
- In sql_my.c and sql_oci.c a check if the database is open has been added to sqlCommit(), sqlGetAutoCommit(), sqlPrepare(), sqlRollback() and sqlSetAutoCommit().
- In sql_fire.c a check if the database is open has been added to sqlCommit() and sqlPrepare().
- Functions in sql_cli.c, sql_fire.c, sql_lite.c, sql_my.c, sql_oci.c, sql_post.c and sql_tds.c have been changed to raise DATABASE_ERROR if a closed database is used.
- A definition of INTERVAL_FRACTION_PRECISION has been added to sql_db2.c, sql_ifx.c, sql_odbc.c and sql_srv.c. This constant is used in sql_cli.c to determine the precision of interval fractions in SQL_INTERVAL_STRUCT.
- In sql_cli.c the binding of time/date values has been fixed (this avoids a heap corruption).
- In sql_cli.c the binding and reading of intervals (durations) has been improved. The function assignInterval() has been added.
- In sql_cli.c the function assignToIntervalStruct() has been improved to normalize a duration before converting it to a SQL_INTERVAL_STRUCT. The conversion to SQL_INTERVAL_STRUCT has been improved as well.
- In sql_lite.c the value MAX_SIZE_ISO_DURATION is computed now.
- In sql_my.c the function sqlBindDuration() has been improved to avoid unsigned long overflow.
- The function dbNotOpen() has been added to sql_base.c.
- In exec.c in the function par_init() the debug prints have been improved.
- In fil_rtl.c the function filSetbuf() has been improved to raise FILE_ERROR if it is called with a closed file.
- In fil_dos.c, fil_emc.c, fil_unx.c and fil_win.c the function filInputReady() has been improved to raise FILE_ERROR if it is called with a closed file.
- In fwd_term.c forwarding of termcap functions has been added.
- The functions XFreeCursor() and XSetErrorHandler() have been added to fwd_x11.c and x11_x.h.
- In flt_rtl.h the buffer size for buffers used by doubleToFormatE() has been fixed to consider that negative numbers have the maximum length.
- The functions continue_question() (in runerr.c) and continue_question() (in sigutl.c) have been refactored.
- In kbd_inf.c, kbd_poll.c, msg_stri.c, runerr.c, sigutl.c, soc_rtl.c, sql_post.c, gkb_x11.c, sql_lite.c and traceutl.c literals in the code have been replaced by #define constants.
- The program chkccomp.c has been improved:
- Now it determines CONSTRUCTOR_ATTRIBUTE, DEFINE_INITIALIZER_MACRO, CC_OPT_POSITION_INDEPENDENT_CODE, FLOAT_MIN_EXP10, FLOAT_MAX_EXP10, MEMCMP_WITH_SIZE_0_RETURNS_0 and UNIONS_CAN_CONVERT_TO_GENERIC.
- The functions getConstructorAttribute(), getInitializerMacro64(), getInitializerMacro32() and determineLibraryProperties() have been added.
- In extractPostgresOid() a check, if essential OIDs are missing in the generated pg_type.h, has been added.
- A test has been added if memcmp() with a size of 0 returns 0 even with NULL parameters (MEMCMP_WITH_SIZE_0_RETURNS_0).
- An include of stdlib.h has been added to a test program which uses malloc().
- Test programs have been improved to free allocated memory.
- A buffer overflow is avoided in a test program for array literals.
- A superfluous parameter of strcmp() has been removed from a test program.
- Test programs have been changed to include stdio.h, if the test uses printf().
- Test programs for X11 have been improved to close the display.
- Parentheses have been put around -1.
- A definition of EAI_NODATA is written to version.h, if it is missing and getaddrinfo() is present.
- A return statement has been added to the function getCodePage().
- In wrdepend.c it is assured that the variable level is not undefined when it is written.
- The makefile mk_tcc_l.mak has been improved to allow a compilation with tcc if 'X11/extensions/Xrender.h' is missing.
- A definition of CC_OPT_POSITION_INDEPENDENT_CODE has been added to makefile, mk_clang.mak, mk_cygw.mak, mk_freebsd.mk, mk_linux.mak, mk_mingc.mak, mk_mingw.mak, mk_msys.mak, mk_nmake.mak, mk_osx.mak and mk_osxcl.mak.
- Logging functions have been added or improved in big_gmp.c, big_rtl.c, cmd_rtl.c, con_inf.c, con_rtl.c, drw_emc.c, drw_win.c, drw_x11.c, fillib.c, fil_rtl.c, flt_rtl.c, fwd_term.c, fwd_x11.c, hshlib.c, kbd_poll.c, pol_unx.c, soc_rtl.c, sql_base.c, sql_cli.c, sql_fire.c, sql_lite.c, sql_my.c, sql_oci.c, sql_post.c, sql_rtl.c, sql_tds.c, strlib.c, s7.c, trm_cap.c, trm_inf.c and traceutl.c.
- Documentation comments have been added or improved in bas7.sd7, complex.s7i, draw.s7i, flt_rtl.c, listener.s7i, poll.s7i, progs.s7i, string.s7i, drw_emc.c, drw_win.c and drw_x11.c.
Regards,
Thomas Mertes
