OpenEuphoria

Re: a new library

• Posted by neksys <i.shoot at REDNECKS.COM> Feb 05, 2000
• 316 views

THis looks pretty nice, I especially like the structures.  I'm very interested
in it, please, send it to RDS!

Regards,
Greg

Bernie Ryan wrote:

> I have a written a new library called mixedlib.e and if anyone is
>  interested in it, I will send it to RDS for distribution.
>
>  The mixed library is a general pupose library that can be used to build
>  parsers, filters, macro or preprocessors, xbase file programs, games, etc.
>  and new features will be added if any interest grows in it's routines.
>  The future direction will be depend on users interests.
>
>  The library features:
>
>     Memory based ANSI "C" string handling
>     Standard "C" string routines
>     Demonstrates easier use of assembler
>     "C" string output from memory to device or file
>     Memory based structures that can be written to and from disk
>     "C" variable types
>
>  The purpose of this library is to introduce the Euphoria programmer
>  to the techniques of using assembler and "C" code in a Euphoria Program.
>  I have used extensive comments in the library to help the Programmer to
>  understand what is happening in the library. The library is called the
>  mixed library because it is a mix of languages and has a mix of uses.
>
>  The library's string handling routines are the same as "C" zero terminated
>  strings. The strings are NOT seqeunces but are memory based strings with
>  a zero terminating byte. The strings supported are the same as those used
>  by ANSI "C" and work the exact same way. This enables the programmer
>  to easily migrate "C" string applications to Euphoria. The structures are
>  declared in a form that makes it easy to forget about offsets.
>
>  The latest version of Pete's ASM.E is required for the assembler routines.
>  This should be included with the mixedlib.e. Because the library is a
>  a general library it will be difficult to give extensive demos. The idea
>  is for the user to be creative enough to create the demos.
>
>    This is an example of using strings ( just like "C" )
>
>    atom str1, str2, str3
>
>    str1 = string(255)              -- create an empty string storage
>    str2 = string("Hello Euphoria") -- create an intialize string
>    str1 = strcpy(str1, str2)       -- copy string2 to string1
>    str1 = strupr(str1)             -- convert str1 to all upper-case
>
>    and so on just look in any "C" book and you see how to use them
>
>   This is an example of using structures
>
>   -- Allocate some structure pointers
>   pointer record1, record2
>
>   -- Define a record structure in high or low mmemory
>   -- the member can have any name, data type and size
>
>   record1 = struc(" FName: string :  25 "&
>                   " LName: string :  25 "&
>                   " Age  : byte   :   1 "&
>                   " Memo : string : 200 ",
>                   HIGH)                       -- allocate in high memory
>
>   Sets(record1, "Memo", "\nThis is a memo\n"& -- embed special characters
>                         "and should be on\n"& -- or you can parse the field
>                         "more than 1 line\n") -- using the string functions
>
>   Sets(record1, "Age", 22)                 -- set age to 22
>
>   Sets(record1, "FName", "Sammy")          -- set the structure's field
>                                            -- it will be truncated if > 25
>                                            -- which was its declared size.
>
>   record2 = dups(record1,LOW)              -- duplicate the same record in
>                                            -- low memory
>
>   cout(1,Gets(record2,"FName"))            -- use cout to output null
>                                            -- terminated strings to any file
>                                            -- or device
>
>   The structures can written in blocks to and from memory to a file
>
>   Maybe one of you xbase experts could use it write a database
>
>   Bernie