Sorry, this was meant for the bsf4oorexx-developer list.
---rony
On 07.06.2018 17:35, Rony G. Flatscher wrote:
> As it may be the case that more and more text files get distributed in
> Unicode, it may be useful
> to know how to convert e.g. UTF-16 to Windows Latin-1 (Codepage 1252) or even
> from any encoding to
> any other (e.g. Cp850 to Cp1252 and vice-versa).
>
> As Java supports Unicode and codepage/charset translations it is quite easy
> to take advantage of
> it from ooRexx (via BSF4ooRexx). Just define a routine named e.g. "iconv"
> like:
>
> -- Recode Rexx string from one encoding to another
> ::routine iconv
> use strict arg str, fromCp, toCp
> -- create Java String using Rexx string encoded in the fromCP codepage
> jstr=.java.lang.String~new(bsfRawBytes(str),fromCp)
> -- get Java byte array in desired toCp codepage and return it as Rexx
> string (encoded in toCp)
> return bsfRawBytes(jstr~getBytes(toCp))
>
> The arguments "fromCp" and "toCp" may be any string that is defined in
> <https://docs.oracle.com/javase/8/docs/api/java/nio/charset/Charset.html>. As
> you will see all
> important sets are defined there.
>
> If you have a need to translate e.g. from "UTF-16" to "Cp1252" then invoke it
> with
>
> strNew=iconv(str, "UTF-16", "Cp1252") -- recode the Rexx string
> referenced by "str"
>
> If you are in western Europe and have a need for DOS-ASCII files encoded in
> Cp850 to convert to
> Windows Latin-1 (Cp1252) then invoke with
>
> strNew=iconv(str, "Cp850", "Cp1252") -- recode the Rexx string
> referenced by "str"
>
> This should also work fast on very large strings due to employing the
> external BSF Rexx function
> BsfRawBytes(), which either translates a Rexx string into a Java byte array
> or a Java byte array
> into a Rexx string using native APIs.
>
> ---
>
> The next beta version of BSF4ooRexx will supply a public routine named
> "bsf.iconv(str, fromCp,
> toCp)" as the need to do conversions from/to Unicode has increased in the
> past years considerably.
>
> ---rony
>
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