Updated documentation. Fixed a small bug in checked.h. Added new checks to the negative tests
git-svn-id: http://svn.code.sf.net/p/utfcpp/code@78 a809a056-fc17-0410-9590-b4f493f8b08e
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ntrifunovic
parent
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3 changed files with 112 additions and 10 deletions
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@ -33,6 +33,10 @@
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ul.toc {
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list-style-type: none;
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}
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p.version {
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font-size: small;
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font-style: italic;
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}
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-->
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</style>
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</head>
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@ -56,6 +60,20 @@
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</li>
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<li>
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<a href="#reference">Reference</a>
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<ul class="toc">
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<li>
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<a href="#funutf8">Functions From utf8 Namespace </a>
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</li>
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<li>
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<a href="#typesutf8">Types From utf8 Namespace </a>
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</li>
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<li>
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<a href="#fununchecked">Functions From utf8::unchecked Namespace </a>
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</li>
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<li>
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<a href="#typesunchecked">Types From utf8::unchecked Namespace </a>
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</li>
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</ul>
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</li>
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<li>
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<a href="#points">Points of Interest</a>
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@ -64,7 +82,7 @@
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<a href="#conclusion">Conclusion</a>
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</li>
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<li>
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<a href="#references">References</a>
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<a href="#links">Links</a>
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</li>
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</ul>
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</div>
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@ -182,12 +200,15 @@
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<h2 id="reference">
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Reference
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</h2>
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<h3>
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<h3 id="funutf8">
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Functions From utf8 Namespace
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</h3>
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<h4>
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utf8::append
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</h4>
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<p class="version">
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Available in version 1.0 and later.
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</p>
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<p>
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Encodes a 32 bit code point as a UTF-8 sequence of octets and appends the sequence
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to a UTF-8 string.
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@ -236,6 +257,9 @@ assert (u[<span class="literal">0</span>] == <span class=
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<h4>
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utf8::next
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</h4>
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<p class="version">
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Available in version 1.0 and later.
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</p>
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<p>
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Given the iterator to the beginning of the UTF-8 sequence, it returns the code
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point and moves the iterator to the next position.
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@ -277,6 +301,9 @@ assert (w == twochars + <span class="literal">3</span>);
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<h4>
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utf8::prior
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</h4>
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<p class="version">
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Available in version 1.02 and later.
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</p>
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<p>
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Given a reference to an iterator pointing to an octet in a UTF-8 seqence, it
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decreases the iterator until it hits the beginning of the previous UTF-8 encoded
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@ -330,8 +357,11 @@ assert (w == twochars);
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exception is thrown.
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</p>
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<h4>
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utf8::previous (deprecated, see utf8::prior)
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utf8::previous
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</h4>
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<p class="version">
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Deprecated in version 1.02 and later.
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</p>
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<p>
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Given a reference to an iterator pointing to an octet in a UTF-8 seqence, it
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decreases the iterator until it hits the beginning of the previous UTF-8 encoded
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@ -389,6 +419,9 @@ assert (w == twochars);
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<h4>
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utf8::advance
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</h4>
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<p class="version">
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Available in version 1.0 and later.
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</p>
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<p>
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Advances an iterator by the specified number of code points within an UTF-8
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sequence.
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@ -431,6 +464,9 @@ assert (w == twochars + <span class="literal">5</span>);
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<h4>
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utf8::distance
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</h4>
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<p class="version">
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Available in version 1.0 and later.
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</p>
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<p>
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Given the iterators to two UTF-8 encoded code points in a seqence, returns the
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number of code points between them.
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@ -474,6 +510,9 @@ assert (dist == <span class="literal">2</span>);
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<h4>
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utf8::utf16to8
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</h4>
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<p class="version">
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Available in version 1.0 and later.
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</p>
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<p>
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Converts a UTF-16 encoded string to UTF-8.
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</p>
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@ -514,6 +553,9 @@ assert (utf8result.size() == <span class="literal">10</span>);
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<h4>
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utf8::utf8to16
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</h4>
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<p class="version">
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Available in version 1.0 and later.
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</p>
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<p>
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Converts an UTF-8 encoded string to UTF-16
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</p>
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@ -555,6 +597,9 @@ assert (utf16result[<span class="literal">3</span>] == <span class=
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<h4>
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utf8::utf32to8
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</h4>
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<p class="version">
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Available in version 1.0 and later.
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</p>
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<p>
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Converts a UTF-32 encoded string to UTF-8.
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</p>
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@ -593,6 +638,9 @@ assert (utf8result.size() == <span class="literal">9</span>);
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<h4>
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utf8::utf8to32
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</h4>
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<p class="version">
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Available in version 1.0 and later.
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</p>
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<p>
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Converts a UTF-8 encoded string to UTF-32.
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</p>
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@ -632,6 +680,9 @@ assert (utf32result.size() == <span class="literal">2</span>);
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<h4>
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utf8::find_invalid
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</h4>
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<p class="version">
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Available in version 1.0 and later.
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</p>
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<p>
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Detects an invalid sequence within a UTF-8 string.
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</p>
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@ -668,6 +719,9 @@ assert (invalid == utf_invalid + <span class="literal">5</span>);
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<h4>
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utf8::is_valid
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</h4>
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<p class="version">
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Available in version 1.0 and later.
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</p>
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<p>
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Checks whether a sequence of octets is a valid UTF-8 string.
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</p>
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@ -701,6 +755,9 @@ assert (bvalid == false);
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<h4>
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utf8::replace_invalid
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</h4>
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<p class="version">
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Available in version 2.0 and later.
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</p>
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<p>
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Replaces all invalid UTF-8 sequences within a string with a replacement marker.
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</p>
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@ -755,6 +812,9 @@ assert (std::equal(replace_invalid_result.begin(), replace_invalid_result.end(),
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<h4>
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utf8::is_bom
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</h4>
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<p class="version">
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Available in version 1.0 and later.
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</p>
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<p>
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Checks whether a sequence of three octets is a UTF-8 byte order mark (BOM)
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</p>
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@ -783,12 +843,15 @@ assert (bbom == <span class="literal">true</span>);
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they form the UTF-8 BOM, we want to skip them before processing the actual UTF-8
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encoded text.
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</p>
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<h3>
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<h3 id="typesutf8">
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Types From utf8 Namespace
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</h3>
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<h4>
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utf8::iterator
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</h4>
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<p class="version">
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Available in version 2.0 and later.
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</p>
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<p>
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Adapts the underlying octet iterator to iterate over the sequence of code points,
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rather than raw octets.
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@ -862,12 +925,15 @@ assert (*it == <span class="literal">0x10346</span>);
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std::string s = <span class="literal">"example"</span>;
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utf8::iterator i (s.begin(), s.begin(), s.end());
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</pre>
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<h3>
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<h3 id="fununchecked">
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Functions From utf8::unchecked Namespace
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</h3>
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<h4>
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utf8::unchecked::append
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</h4>
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<p class="version">
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Available in version 1.0 and later.
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</p>
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<p>
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Encodes a 32 bit code point as a UTF-8 sequence of octets and appends the sequence
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to a UTF-8 string.
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@ -910,6 +976,9 @@ assert (u[<span class="literal">0</span>] == <span class=
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<h4>
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utf8::unchecked::next
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</h4>
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<p class="version">
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Available in version 1.0 and later.
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</p>
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<p>
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Given the iterator to the beginning of a UTF-8 sequence, it returns the code point
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and moves the iterator to the next position.
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@ -945,6 +1014,9 @@ assert (w == twochars + <span class="literal">3</span>);
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<h4>
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utf8::unchecked::prior
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</h4>
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<p class="version">
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Available in version 1.02 and later.
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</p>
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<p>
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Given a reference to an iterator pointing to an octet in a UTF-8 seqence, it
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decreases the iterator until it hits the beginning of the previous UTF-8 encoded
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@ -981,6 +1053,9 @@ assert (w == twochars);
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<h4>
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utf8::unchecked::previous (deprecated, see utf8::unchecked::prior)
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</h4>
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<p class="version">
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Deprecated in version 1.02 and later.
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</p>
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<p>
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Given a reference to an iterator pointing to an octet in a UTF-8 seqence, it
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decreases the iterator until it hits the beginning of the previous UTF-8 encoded
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@ -1023,6 +1098,9 @@ assert (w == twochars);
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<h4>
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utf8::unchecked::advance
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</h4>
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<p class="version">
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Available in version 1.0 and later.
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</p>
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<p>
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Advances an iterator by the specified number of code points within an UTF-8
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sequence.
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@ -1061,6 +1139,9 @@ assert (w == twochars + <span class="literal">5</span>);
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<h4>
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utf8::unchecked::distance
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</h4>
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<p class="version">
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Available in version 1.0 and later.
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</p>
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<p>
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Given the iterators to two UTF-8 encoded code points in a seqence, returns the
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number of code points between them.
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@ -1096,6 +1177,9 @@ assert (dist == <span class="literal">2</span>);
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<h4>
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utf8::unchecked::utf16to8
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</h4>
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<p class="version">
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Available in version 1.0 and later.
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</p>
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<p>
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Converts a UTF-16 encoded string to UTF-8.
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</p>
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@ -1136,6 +1220,9 @@ assert (utf8result.size() == <span class="literal">10</span>);
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<h4>
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utf8::unchecked::utf8to16
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</h4>
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<p class="version">
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Available in version 1.0 and later.
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</p>
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<p>
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Converts an UTF-8 encoded string to UTF-16
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</p>
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@ -1176,6 +1263,9 @@ assert (utf16result[<span class="literal">3</span>] == <span class=
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<h4>
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utf8::unchecked::utf32to8
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</h4>
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<p class="version">
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Available in version 1.0 and later.
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</p>
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<p>
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Converts a UTF-32 encoded string to UTF-8.
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</p>
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@ -1215,6 +1305,9 @@ assert (utf8result.size() == <span class="literal">9</span>);
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<h4>
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utf8::unchecked::utf8to32
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</h4>
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<p class="version">
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Available in version 1.0 and later.
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</p>
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<p>
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Converts a UTF-8 encoded string to UTF-32.
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</p>
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@ -1249,12 +1342,15 @@ assert (utf32result.size() == <span class="literal">2</span>);
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This is a faster but less safe version of <code>utf8::utf8to32</code>. It does not
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check for validity of the supplied UTF-8 sequence.
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</p>
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<h3>
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<h3 id="typesunchecked">
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Types From utf8::unchecked Namespace
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</h3>
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<h4>
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utf8::iterator
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</h4>
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<p class="version">
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Available in version 2.0 and later.
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</p>
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<p>
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Adapts the underlying octet iterator to iterate over the sequence of code points,
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rather than raw octets.
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@ -1380,8 +1476,8 @@ assert (*un_it == <span class="literal">0x10346</span>);
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use other means to work with UTF-8 strings. Template functions I describe in this
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article may be a good step in this direction.
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</p>
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<h2 id="references">
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References
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<h2 id="links">
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Links
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</h2>
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<ol>
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<li>
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@ -273,7 +273,7 @@ namespace utf8
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}
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bool operator == (const iterator& rhs) const
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{
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if (range_start != rhs.range_start && range_end != rhs.range_end)
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if (range_start != rhs.range_start || range_end != rhs.range_end)
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throw std::logic_error("Comparing utf-8 iterators defined with different ranges");
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return (it == rhs.it);
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}
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@ -34,6 +34,12 @@ int main()
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const unsigned* u = find(INVALID_LINES, INVALID_LINES_END, line_count);
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if (u == INVALID_LINES_END)
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cout << "Unexpected invalid utf-8 at line " << line_count << '\n';
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// try fixing it:
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string fixed_line;
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replace_invalid(line.begin(), line.end(), back_inserter(fixed_line));
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if (!is_valid(fixed_line.begin(), fixed_line.end()))
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cout << "replace_invalid() resulted in an invalid utf-8 at line " << line_count << '\n';
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}
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}
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}
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