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Related Topics | Other Library Functions |
function |
jis-input-file |
Library: Character encodings, international (OMEFIO)
Include: omefio.xin |
define external string source function jis-input-file value string filename exceptions-to value io-exception exceptions-to optional
This external string source function reads the file named by the "filename" argument and returns the text of that file converted from a JIS encoding to a UTF-8 encoding. The file is in JIS, but the program receives the UTF-8 conversion.
Arguments:
jis-input-file
does not open a file, but reads from standard input. The zero-length file name option allows the conversion functionality to be used in an OmniMark program that is being used as a filter.
The file format is interpreted according to the Japanese Industry Standards JIS X 0201, JIS X 0208, and JIS X 0212. The file format uses escape sequences based on ISO 2022 (also known as JIS X 0202) to shift between the encodings defined by the three standards. On input, some laxity is shown in recognizing not-quite-valid escape sequences and those defined by older versions of the standards.
Example:
; Outputting just the ASCII characters in a JIS-encoded file. repeat scan jis-input-file "myfile.jis" match ["%0#" to "%127#"]+ => ascii-text output ascii-text match ["%128#" to "%255#"]+ ; Ignore high-order characters (which are non-ASCII). again
Related Topics |
Other Library Functions |
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