5 Modules

5.2.1 Choices

• libaubit4gl.so libbarcode.so libchannel.so
• libA4GL_:
  file.so HTML.so string.so
  These are miscellaneous extra libraries.
• libDATA_:
  menu_list.so module.so
  report.so struct_form.so
  These are internal libraries for reading data files.
• libESQL_
  INFORMIX.so POSTGRES.so
  These are helper libraries used when A4GL_LEXTYPE=EC. The library used is taken from the A4GL_LEXDIALECT variable. This library is used to copy between native types and aubit types (eg for decimals, dates etc) . Not used when A4GL_LEXTYPE=C
• libEXDTYPE_mpz.so
  Example extended datatype library (implements the GNU mpz datatype).
• libEXREPORT_:
  NOPDF.so PDF.so
  Extended report handling. libEXREPORT_PDF.so relies on having pdflib installed. It will not be generated otherwise. PDF reports are experimental.
• libFORM_:
  GENERIC.so NOFORM.so XDR.so
  This is used to read, write, and process a form file. The library is specified by the A4GL_FORMTYPE variable. e.g.: A4GL_FORMTYPE=GENERIC If you have libFORM_XDR.so - that is probably the best one to use, so
  $ export A4GL_FORMTYPE=XDR
  If you don’t have libFORM_XDR.so, you’ll need to use the GENERIC packers
  $ export A4GL_FORMTYPE=GENERIC
  You will then also need to specify the GENERIC packer by setting A4GL_PACKER (see PACKER)...
• libHELP_std.so
  Always set to std - can be ignored
• libLEX_C.so libLEX_CS.so libLEX_EC.so libLEX_PERL.so
  Specifies the output format - currently only C and EC are supported. For C generation, calls are made to internal SQL functions within the library specified by A4GL_SQLTYPE (see SQL) For EC generation, a .ec file is generated which should be compiled used native database tools (like esql for informix and ecpg for postgres). If you can use EC generation - use it, performance will be better...
• libLOGREP_:
  CSV.so TXT.so
  Logical report handling. Converts logical reports to different formats
• libMENU_NOMENU.so
  GUI Menu handling. Obsoleted (probably).
• libMSG_NATIVE.so
  Ignore
• libPACKER_:
  MEMPACKED.so PACKED.so
  PERL.so XDR.so XML.so
  This specifies the packer to use for reading and writing data files. The library is specified via the A4GL_PACKER variable. Use MEMPACKER for embedding forms into a program. Don’t use PERL unless you know what you are doing. PACKED, XML and XDR are all reasonable packers. The packer library is only used when FORMTYPE etc is set to GENERIC.
• libRPC_NORPC.so libRPC_XDR.so
  Specifies which RPC protocol to use - advanced stuff - still experimental.
• libSQL_:
  esql.so esql_s.so FILESCHEMA.so
  ifxodbc.so nosql.so
   mysql.so pg8.so pgodbc.so
  sqlite3.so unixodbc.so
  This is probably the most important setting, specified through SQLTYPE - this determines how Aubit is going to talk to the database. There are two distinct times that this is done: At compile time At runtime
• libUI_:
  CONSOLE.so lHL_TUIN.so HL_TUI.so
  TUI.so TUI_s.so HL_GTK.so
  This specifies how data will be displayed to the user. This handles all the UI controls (prompt,display, input etc)
  CONSOLE - is a simple I/O module which does not use any control codes. Just printfs and fgets etc. Use this for programs to be called by cron, at, etc where they will run without a terminal (real or virtual) connected to stdout.
  TUI - The traditional output for dumb terminals (real or emulated)
  TUI-WIDE - for wide characters (e.g. UTF-8, Unicode, etc)
  HL_TUI - Was to be the next version of TUI, abstracted to help make other HL_.. modules. There will no further development of this.
  HL_TUIN - Ignore
  HL_GTK - GTK version. This will not be developed further and will be superceded by the new generation of Visual Display Clients.
• libXDRPACKER_:
  menu_list.so module.so
  report.so struct_form.so
  This is a helper module when FORMTYPE etc are set to XDR. These contain the actual XDR routines.