https://wiki.hegyd.com/index.php?action=history&feed=atom&title=Sindup%3AisUtf8 2026-07-10T22:44:45Z Historique pour cette page sur le wiki MediaWiki 1.15.4 https://wiki.hegyd.com/index.php?title=Sindup:isUtf8&diff=1344&oldid=prev 2012-01-31T15:54:04Z

<p></p> <table style="background-color: white; color:black;"> <col class='diff-marker' /> <col class='diff-content' /> <col class='diff-marker' /> <col class='diff-content' /> <tr valign='top'> <td colspan='2' style="background-color: white; color:black;">← Version précédente</td> <td colspan='2' style="background-color: white; color:black;">Version du 31 janvier 2012 à 15:54</td> </tr> <tr><td colspan="2" class="diff-lineno">Ligne 21 :</td> <td colspan="2" class="diff-lineno">Ligne 21 :</td></tr> <tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>&nbsp; }</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>&nbsp; }</div></td></tr> <tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr> <tr><td colspan="2">&nbsp;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">''' En php '''</ins></div></td></tr> <tr><td colspan="2">&nbsp;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"> // Détecte si la le text est bien constitué uniquement d'utf8</ins></div></td></tr> <tr><td colspan="2">&nbsp;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"> public function isUtf8( $str) {</ins></div></td></tr> <tr><td colspan="2">&nbsp;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">&nbsp; for( $i = 0; $i &lt; strlen( $str); $i+= $nb, $nb = 0) {</ins></div></td></tr> <tr><td colspan="2">&nbsp;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">&nbsp; &nbsp; $c = ord( $str[$i]);</ins></div></td></tr> <tr><td colspan="2">&nbsp;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">&nbsp; &nbsp; if( ( $c &amp; 0x80) != 0x80)</ins></div></td></tr> <tr><td colspan="2">&nbsp;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">&nbsp; &nbsp; &nbsp; $nb = 1; # 0xxx xxxx</ins></div></td></tr> <tr><td colspan="2">&nbsp;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">&nbsp; &nbsp; elseif( ( $c &amp; 0xE0) == 0xC0)</ins></div></td></tr> <tr><td colspan="2">&nbsp;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">&nbsp; &nbsp; &nbsp; $nb = 2; # 110x xxxx</ins></div></td></tr> <tr><td colspan="2">&nbsp;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">&nbsp; &nbsp; elseif( ( $c &amp; 0xF0) == 0xE0)</ins></div></td></tr> <tr><td colspan="2">&nbsp;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">&nbsp; &nbsp; &nbsp; $nb = 3; # 1110 xxxx</ins></div></td></tr> <tr><td colspan="2">&nbsp;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">&nbsp; &nbsp; elseif( ( $c &amp; 0xF8) == 0xF0)</ins></div></td></tr> <tr><td colspan="2">&nbsp;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">&nbsp; &nbsp; &nbsp; $nb = 4; # 1111 0xxx</ins></div></td></tr> <tr><td colspan="2">&nbsp;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">&nbsp; &nbsp; elseif( ( $c &amp; 0xFC) == 0xF8)</ins></div></td></tr> <tr><td colspan="2">&nbsp;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">&nbsp; &nbsp; &nbsp; $nb = 5; # 1111 10xx</ins></div></td></tr> <tr><td colspan="2">&nbsp;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">&nbsp; &nbsp; elseif( ( $c &amp; 0xFE) == 0xFC)</ins></div></td></tr> <tr><td colspan="2">&nbsp;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">&nbsp; &nbsp; &nbsp; $nb = 6; # 1111 110x </ins></div></td></tr> <tr><td colspan="2">&nbsp;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">&nbsp; &nbsp; else</ins></div></td></tr> <tr><td colspan="2">&nbsp;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">&nbsp; &nbsp; &nbsp; return false; # Does not match any model</ins></div></td></tr> <tr><td colspan="2">&nbsp;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">&nbsp; &nbsp; for( $j = 1; $j &lt; $nb &amp;&amp; ($i + $j) &lt; strlen( $str); $j++) {</ins></div></td></tr> <tr><td colspan="2">&nbsp;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">&nbsp; &nbsp; &nbsp; if( ( ord( $str[$i]) &amp; 0xC0) != 0x80)</ins></div></td></tr> <tr><td colspan="2">&nbsp;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">&nbsp; &nbsp; &nbsp; &nbsp; return false;</ins></div></td></tr> <tr><td colspan="2">&nbsp;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">&nbsp; &nbsp; }</ins></div></td></tr> <tr><td colspan="2">&nbsp;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">&nbsp; } </ins></div></td></tr> <tr><td colspan="2">&nbsp;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">&nbsp; return true;</ins></div></td></tr> <tr><td colspan="2">&nbsp;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"> }</ins></div></td></tr> <tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr> <tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>'''Caractères UTF8 sur :'''</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>'''Caractères UTF8 sur :'''</div></td></tr> <!-- diff generator: internal 2026-07-10 22:44:45 --> </table>

Vanina Lebouvier https://wiki.hegyd.com/index.php?title=Sindup:isUtf8&diff=1343&oldid=prev 2012-01-31T14:45:50Z

<p></p> <table style="background-color: white; color:black;"> <col class='diff-marker' /> <col class='diff-content' /> <col class='diff-marker' /> <col class='diff-content' /> <tr valign='top'> <td colspan='2' style="background-color: white; color:black;">← Version précédente</td> <td colspan='2' style="background-color: white; color:black;">Version du 31 janvier 2012 à 14:45</td> </tr> <tr><td colspan="2" class="diff-lineno">Ligne 38 :</td> <td colspan="2" class="diff-lineno">Ligne 38 :</td></tr> <tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>&nbsp; 1111 0xxx - 10xx xxxx - 10xx xxxx - 10xx xxxx</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>&nbsp; 1111 0xxx - 10xx xxxx - 10xx xxxx - 10xx xxxx</div></td></tr> <tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>&nbsp; c1 &amp; 0xF8 == 0xF0</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>&nbsp; c1 &amp; 0xF8 == 0xF0</div></td></tr> <tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>&nbsp; <del class="diffchange diffchange-inline">c2 &amp; 0xC0 == 0x80</del></div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>&nbsp; <ins class="diffchange diffchange-inline">...</ins></div></td></tr> <tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del class="diffchange diffchange-inline"> c3 &amp; 0xC0 == 0x80</del></div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div></div></td></tr> <tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>&nbsp; c4 &amp; 0xC0 == 0x80</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>&nbsp; c4 &amp; 0xC0 == 0x80</div></td></tr> <tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* 5 octets :</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* 5 octets :</div></td></tr> <tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>&nbsp; 1111 10xx - 10xx xxxx - 10xx xxxx - 10xx xxxx - 10xx xxxx</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>&nbsp; 1111 10xx - 10xx xxxx - 10xx xxxx - 10xx xxxx - 10xx xxxx</div></td></tr> <tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>&nbsp; c1 &amp; 0xFC == 0xF8</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>&nbsp; c1 &amp; 0xFC == 0xF8</div></td></tr> <tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>&nbsp; <del class="diffchange diffchange-inline">c2 &amp; 0xC0 == 0x80</del></div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>&nbsp; <ins class="diffchange diffchange-inline">...</ins></div></td></tr> <tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del class="diffchange diffchange-inline"> c3 &amp; 0xC0 == 0x80</del></div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div></div></td></tr> <tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del class="diffchange diffchange-inline"> c4 &amp; 0xC0 == 0x80</del></div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div></div></td></tr> <tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>&nbsp; c5 &amp; 0xC0 == 0x80</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>&nbsp; c5 &amp; 0xC0 == 0x80</div></td></tr> <tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* 6 octets :</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* 6 octets :</div></td></tr> <tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>&nbsp; 1111 110x - 10xx xxxx - 10xx xxxx - 10xx xxxx - 10xx xxxx - 10xx xxxx</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>&nbsp; 1111 110x - 10xx xxxx - 10xx xxxx - 10xx xxxx - 10xx xxxx - 10xx xxxx</div></td></tr> <tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>&nbsp; c1 &amp; 0xFE == 0xFC</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>&nbsp; c1 &amp; 0xFE == 0xFC</div></td></tr> <tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>&nbsp; <del class="diffchange diffchange-inline">c2 &amp; 0xC0 == 0x80</del></div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>&nbsp; <ins class="diffchange diffchange-inline">...</ins></div></td></tr> <tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del class="diffchange diffchange-inline"> c3 &amp; 0xC0 == 0x80</del></div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div></div></td></tr> <tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del class="diffchange diffchange-inline"> c4 &amp; 0xC0 == 0x80</del></div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div></div></td></tr> <tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del class="diffchange diffchange-inline"> c5 &amp; 0xC0 == 0x80</del></div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div></div></td></tr> <tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>&nbsp; c6 &amp; 0xC0 == 0x80</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>&nbsp; c6 &amp; 0xC0 == 0x80</div></td></tr> <tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>http://sebsauvage.net/python/charsets_et_encoding.html</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>http://sebsauvage.net/python/charsets_et_encoding.html</div></td></tr> <!-- diff generator: internal 2026-07-10 22:44:45 --> </table>

46.18.122.14 https://wiki.hegyd.com/index.php?title=Sindup:isUtf8&diff=1342&oldid=prev 2012-01-31T10:26:42Z

<p>Page créée avec « &#39;&#39;&#39; En C &#39;&#39;&#39; for (i = 0; (c = utf[i]); i+= nb, nb = 0) { if( (c &amp; 0x80) != 0x80) // 1 octet nb = 1; else if ((c &amp; 0xE0) == 0xC0) // 2 octets nb = 2; else if ((c … »</p> <p><b>Nouvelle page</b></p><div>''' En C '''<br /> for (i = 0; (c = utf[i]); i+= nb, nb = 0) {<br /> if( (c &amp; 0x80) != 0x80) // 1 octet<br /> nb = 1;<br /> else if ((c &amp; 0xE0) == 0xC0) // 2 octets<br /> nb = 2;<br /> else if ((c &amp; 0xF0) == 0xE0) // 3 octets<br /> nb = 3;<br /> else if ((c &amp; 0xF8) == 0xF0) // 4 octets<br /> nb = 4;<br /> else if ((c &amp; 0xFC) == 0xF8) // 5 octets<br /> nb = 5;<br /> else if ((c &amp; 0xFE) == 0xFC) // 6 octets<br /> nb = 6;<br /> else<br /> return 1; // N'est pas de l'utf8<br /> for( j = 1; j &lt; nb &amp;&amp; (c = utf[i+j]); j++) {<br /> if( (c &amp; 0xC0) != 0x80)<br /> return 1;<br /> }<br /> }<br /> <br /> <br /> '''Caractères UTF8 sur :'''<br /> * 1 octet : <br /> 0xxx xxxx<br /> c1 &amp; 0x80 != 0x80<br /> * 2 octets :<br /> 110x xxxx - 10xx xxxx<br /> c1 &amp; 0xE0 == 0xC0<br /> c2 &amp; 0xC0 == 0x80<br /> * 3 octets :<br /> 1110 xxxx - 10xx xxxx - 10xx xxxx<br /> c1 &amp; 0xF0 == 0xE0<br /> c2 &amp; 0xC0 == 0x80<br /> c3 &amp; 0xC0 == 0x80<br /> * 4 octets :<br /> 1111 0xxx - 10xx xxxx - 10xx xxxx - 10xx xxxx<br /> c1 &amp; 0xF8 == 0xF0<br /> c2 &amp; 0xC0 == 0x80<br /> c3 &amp; 0xC0 == 0x80<br /> c4 &amp; 0xC0 == 0x80<br /> * 5 octets :<br /> 1111 10xx - 10xx xxxx - 10xx xxxx - 10xx xxxx - 10xx xxxx<br /> c1 &amp; 0xFC == 0xF8<br /> c2 &amp; 0xC0 == 0x80<br /> c3 &amp; 0xC0 == 0x80<br /> c4 &amp; 0xC0 == 0x80<br /> c5 &amp; 0xC0 == 0x80<br /> * 6 octets :<br /> 1111 110x - 10xx xxxx - 10xx xxxx - 10xx xxxx - 10xx xxxx - 10xx xxxx<br /> c1 &amp; 0xFE == 0xFC<br /> c2 &amp; 0xC0 == 0x80<br /> c3 &amp; 0xC0 == 0x80<br /> c4 &amp; 0xC0 == 0x80<br /> c5 &amp; 0xC0 == 0x80<br /> c6 &amp; 0xC0 == 0x80<br /> http://sebsauvage.net/python/charsets_et_encoding.html</div>

Vanina Lebouvier