diff options
Diffstat (limited to 'lib/stdlib/doc/src/unicode.xml')
| -rw-r--r-- | lib/stdlib/doc/src/unicode.xml | 50 |
1 files changed, 15 insertions, 35 deletions
diff --git a/lib/stdlib/doc/src/unicode.xml b/lib/stdlib/doc/src/unicode.xml index 1001ebbae4..1f6cbaccd7 100644 --- a/lib/stdlib/doc/src/unicode.xml +++ b/lib/stdlib/doc/src/unicode.xml @@ -5,7 +5,7 @@ <header> <copyright> <year>1996</year> - <year>2011</year> + <year>2012</year> <holder>Ericsson AB, All Rights Reserved</holder> </copyright> <legalnotice> @@ -130,34 +130,24 @@ </desc> </func> <func> - <name>characters_to_list(Data, InEncoding) -> Result</name> + <name name="characters_to_list" arity="2"/> <fsummary>Convert a collection of characters to list of Unicode characters</fsummary> - <type> - <v>Data = <seealso marker="#type-latin1_chardata">latin1_chardata()</seealso> - | <seealso marker="#type-chardata">chardata()</seealso> - | <seealso marker="#type-external_chardata">external_chardata()</seealso></v> - <v>Result = list() | {error, list(), RestData} | {incomplete, list(), binary()}</v> - <v>RestData = <seealso marker="#type-latin1_chardata">latin1_chardata()</seealso> - | <seealso marker="#type-chardata">chardata()</seealso> - | <seealso marker="#type-external_chardata">external_chardata()</seealso></v> - <v>InEncoding = <seealso marker="#type-encoding">encoding()</seealso></v> - </type> <desc> <p>This function converts a possibly deep list of integers and binaries into a list of integers representing unicode characters. The binaries in the input may have characters encoded as latin1 (0 - 255, one character per byte), in which - case the <c>InEncoding</c> parameter should be given as + case the <c><anno>InEncoding</anno></c> parameter should be given as <c>latin1</c>, or have characters encoded as one of the - UTF-encodings, which is given as the <c>InEncoding</c> - parameter. Only when the <c>InEncoding</c> is one of the UTF + UTF-encodings, which is given as the <c><anno>InEncoding</anno></c> + parameter. Only when the <c><anno>InEncoding</anno></c> is one of the UTF encodings, integers in the list are allowed to be grater than 255.</p> - <p>If <c>InEncoding</c> is <c>latin1</c>, the <c>Data</c> parameter + <p>If <c><anno>InEncoding</anno></c> is <c>latin1</c>, the <c><anno>Data</anno></c> parameter corresponds to the <c>iodata()</c> type, but for <c>unicode</c>, - the <c>Data</c> parameter can contain integers greater than 255 + the <c><anno>Data</anno></c> parameter can contain integers greater than 255 (unicode characters beyond the iso-latin-1 range), which would make it invalid as <c>iodata()</c>.</p> @@ -188,16 +178,16 @@ depth as the original data. The error occurs when traversing the list and whatever's left to decode is simply returned as is.</p> - <p>However, if the input <c>Data</c> is a pure binary, the third + <p>However, if the input <c><anno>Data</anno></c> is a pure binary, the third part of the error tuple is guaranteed to be a binary as well.</p> <p>Errors occur for the following reasons:</p> <list type="bulleted"> - <item>Integers out of range - If <c>InEncoding</c> is + <item>Integers out of range - If <c><anno>InEncoding</anno></c> is <c>latin1</c>, an error occurs whenever an integer greater - than 255 is found in the lists. If <c>InEncoding</c> is + than 255 is found in the lists. If <c><anno>InEncoding</anno></c> is of a Unicode type, an error occurs whenever an integer <list type="bulleted"> <item>greater than <c>16#10FFFF</c> @@ -208,7 +198,7 @@ is found. </item> - <item>UTF encoding incorrect - If <c>InEncoding</c> is + <item>UTF encoding incorrect - If <c><anno>InEncoding</anno></c> is one of the UTF types, the bytes in any binaries have to be valid in that encoding. Errors can occur for various reasons, including "pure" decoding errors @@ -220,7 +210,7 @@ number should have been encoded in fewer bytes. The case of a truncated UTF is handled specially, see the paragraph about incomplete binaries below. If - <c>InEncoding</c> is <c>latin1</c>, binaries are always valid + <c><anno>InEncoding</anno></c> is <c>latin1</c>, binaries are always valid as long as they contain whole bytes, as each byte falls into the valid iso-latin-1 range.</item> @@ -238,7 +228,7 @@ the first part of a (so far) valid UTF character.</p> <p>If one UTF characters is split over two consecutive - binaries in the <c>Data</c>, the conversion succeeds. This means + binaries in the <c><anno>Data</anno></c>, the conversion succeeds. This means that a character can be decoded from a range of binaries as long as the whole range is given as input without errors occurring. Example:</p> @@ -274,21 +264,11 @@ </desc> </func> <func> - <name>characters_to_binary(Data,InEncoding) -> Result</name> + <name name="characters_to_binary" arity="2"/> <fsummary>Convert a collection of characters to an UTF-8 binary</fsummary> - <type> - <v>Data = <seealso marker="#type-latin1_chardata">latin1_chardata()</seealso> - | <seealso marker="#type-chardata">chardata()</seealso> - | <seealso marker="#type-external_chardata">external_chardata()</seealso></v> - <v>Result = binary() | {error, binary(), RestData} | {incomplete, binary(), binary()}</v> - <v>RestData = <seealso marker="#type-latin1_chardata">latin1_chardata()</seealso> - | <seealso marker="#type-chardata">chardata()</seealso> - | <seealso marker="#type-external_chardata">external_chardata()</seealso></v> - <v>InEncoding = <seealso marker="#type-encoding">encoding()</seealso></v> - </type> <desc> - <p>Same as characters_to_binary(Data, InEncoding, unicode).</p> + <p>Same as characters_to_binary(<anno>Data</anno>, <anno>InEncoding</anno>, unicode).</p> </desc> </func> <func> |