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diff --git a/man/man7/utf.html b/man/man7/utf.html deleted file mode 100644 index a1e767ec..00000000 --- a/man/man7/utf.html +++ /dev/null @@ -1,96 +0,0 @@ -<head> -<title>utf(7) - Plan 9 from User Space</title> -<meta content="text/html; charset=utf-8" http-equiv=Content-Type> -</head> -<body bgcolor=#ffffff> -<table border=0 cellpadding=0 cellspacing=0 width=100%> -<tr height=10><td> -<tr><td width=20><td> -<tr><td width=20><td><b>UTF(7)</b><td align=right><b>UTF(7)</b> -<tr><td width=20><td colspan=2> - <br> -<p><font size=+1><b>NAME </b></font><br> - -<table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td> - - UTF, Unicode, ASCII, rune – character set and format<br> - -</table> -<p><font size=+1><b>DESCRIPTION </b></font><br> - -<table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td> - - The Plan 9 character set and representation are based on the Unicode - Standard and on the ISO multibyte UTF-8 encoding (Universal Character - Set Transformation Format, 8 bits wide). The Unicode Standard - represents its characters in 16 bits; UTF-8 represents such values - in an 8-bit byte stream. Throughout this - manual, UTF-8 is shortened to UTF. - <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> - - In Plan 9, a <i>rune</i> is a 16-bit quantity representing a Unicode - character. Internally, programs may store characters as runes. - However, any external manifestation of textual information, in - files or at the interface between programs, uses a machine-independent, - byte-stream encoding called UTF. - <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> - - UTF is designed so the 7-bit ASCII set (values hexadecimal 00 - to 7F), appear only as themselves in the encoding. Runes with - values above 7F appear as sequences of two or more bytes with - values only from 80 to FF. - <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> - - The UTF encoding of the Unicode Standard is backward compatible - with ASCII: programs presented only with ASCII work on Plan 9 - even if not written to deal with UTF, as do programs that deal - with uninterpreted byte streams. However, programs that perform - semantic processing on ASCII graphic characters must convert - from UTF to runes in order to work properly with non-ASCII input. - See <a href="../man3/rune.html"><i>rune</i>(3)</a>. - <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> - - Letting numbers be binary, a rune x is converted to a multibyte - UTF sequence as follows: - <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> - - 01. x in [00000000.0bbbbbbb] → 0bbbbbbb<br> - 10. x in [00000bbb.bbbbbbbb] → 110bbbbb, 10bbbbbb<br> - 11. x in [bbbbbbbb.bbbbbbbb] → 1110bbbb, 10bbbbbb, 10bbbbbb<br> - - <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> - - Conversion 01 provides a one-byte sequence that spans the ASCII - character set in a compatible way. Conversions 10 and 11 represent - higher-valued characters as sequences of two or three bytes with - the high bit set. Plan 9 does not support the 4, 5, and 6 byte - sequences proposed by X-Open. When there are - multiple ways to encode a value, for example rune 0, the shortest - encoding is used. - <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> - - In the inverse mapping, any sequence except those described above - is incorrect and is converted to rune hexadecimal 0080.<br> - -</table> -<p><font size=+1><b>SEE ALSO </b></font><br> - -<table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td> - - <a href="../man1/ascii.html"><i>ascii</i>(1)</a>, <a href="../man1/tcs.html"><i>tcs</i>(1)</a>, <a href="../man3/rune.html"><i>rune</i>(3)</a>, <i>The Unicode Standard</i>.<br> - -</table> - -<td width=20> -<tr height=20><td> -</table> -<!-- TRAILER --> -<table border=0 cellpadding=0 cellspacing=0 width=100%> -<tr height=15><td width=10><td><td width=10> -<tr><td><td> -<center> -<a href="../../"><img src="../../dist/spaceglenda100.png" alt="Space Glenda" border=1></a> -</center> -</table> -<!-- TRAILER --> -</body></html> |