From 27ebdf09f0124bf8fa09334f7443cd1a6d41f107 Mon Sep 17 00:00:00 2001
From: joyqi <joyqi@segmentfault.com>
Date: Wed, 14 Apr 2021 14:23:05 +0800
Subject: [PATCH] fix #1088

---
 admin/js/hyperdown.js     |  2 +-
 admin/src/js/hyperdown.js | 10 +++---
 var/HyperDown.php         | 71 ++++++++++++++++++++-------------------
 3 files changed, 44 insertions(+), 39 deletions(-)

diff --git a/admin/js/hyperdown.js b/admin/js/hyperdown.js
index fd444ffd..404c5233 100644
--- a/admin/js/hyperdown.js
+++ b/admin/js/hyperdown.js
@@ -1 +1 @@
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s;if(this.isBlock("list")&&!r.match(/^\s*\[((?:[^\]]|\\\]|\\\[)+?)\]:\s*(.+)$/)){if(r.match(/^(\s*)(~{3,}|`{3,})([^`~]*)$/i))return!0;if(n.empty<=1&&(s=r.match(/^(\s*)\S+/))&&s[1].length>=t[3][0]+n.empty)return n.empty=0,this.setBlock(e),!1;if(r.match(/^\s*$/)&&0===n.empty)return n.empty+=1,this.setBlock(e),!1}return!(s=r.match(/^(\s*)((?:[0-9]+\.)|\-|\+|\*)\s+/i))||(r=s[1].length,s=(n.empty=0)<="+-*".indexOf(s[2])?"ul":"ol",!this.isBlock("list")||r<t[3][0]||r===t[3][0]&&s!==t[3][1]?this.startBlock("list",e,[r,s]):this.setBlock(e),!1)},e.prototype.parseBlockCode=function(t,e,r,n){var s;return(r=r.match(/^(\s*)(~{3,}|`{3,})([^`~]*)$/i))?(this.isBlock("code")?(s=t[3][2])?this.combineBlock().setBlock(e):this.setBlock(e).endBlock():(s=!1,this.isBlock("list")&&(t=t[3][0],s=r[1].length>=t+n.empty),this.startBlock("code",e,[r[1],r[3],s])),!1):!this.isBlock("code")||(this.setBlock(e),!1)},e.prototype.parseBlockShtml=function(t,e,r,n){if(this.html){if(r.match(/^(\s*)!!!(\s*)$/))return this.isBlock("shtml")?this.setBlock(e).endBlock():this.startBlock("shtml",e),!1;if(this.isBlock("shtml"))return this.setBlock(e),!1}return!0},e.prototype.parseBlockAhtml=function(t,e,r,n){var s,l,i,o;if(this.html)if(o=new RegExp("^\\s*<("+this.blockHtmlTags+")(\\s+[^>]*)?>","i"),o=r.match(o)){if(this.isBlock("ahtml"))return this.setBlock(e),!1;if(void 0===o[2]||"/"!==o[2]){for(this.startBlock("ahtml",e),s=new RegExp("\\s*<("+this.blockHtmlTags+")(\\s+[^>]*)?>","ig");i=s.exec(r);)l=i[1];return 0<=r.indexOf("</"+l+">")?this.endBlock():n.html=l,!1}}else{if(n.html&&0<=r.indexOf("</"+n.html+">"))return this.setBlock(e).endBlock(),n.html=!1;if(this.isBlock("ahtml"))return this.setBlock(e),!1;if(o=r.match(/^\s*<!\-\-(.*?)\-\->\s*$/))return this.startBlock("ahtml",e).endBlock(),!1}return!0},e.prototype.parseBlockMath=function(t,e,r){return r.match(/^(\s*)\$\$(\s*)$/)?(this.isBlock("math")?this.setBlock(e).endBlock():this.startBlock("math",e),!1):!this.isBlock("math")||(this.setBlock(e),!1)},e.prototype.parseBlockPre=function(t,e,r,n){return r.match(/^ {4}/)?(this.isBlock("pre")?this.setBlock(e):this.startBlock("pre",e),!1):!this.isBlock("pre")||!r.match(/^\s*$/)||(this.setBlock(e),!1)},e.prototype.parseBlockHtml=function(t,e,r,n){var s,l;return(s=r.match(new RegExp("^\\s*<("+n.special+")(\\s+[^>]*)?>","i")))?(l=s[1].toLowerCase(),this.isBlock("html",l)||this.isBlock("pre")||this.startBlock("html",e,l),!1):(s=r.match(new RegExp("</("+n.special+")>\\s*$","i")))?(l=s[1].toLowerCase(),this.isBlock("html",l)&&this.setBlock(e).endBlock(),!1):!this.isBlock("html")||(this.setBlock(e),!1)},e.prototype.parseBlockFootnote=function(t,e,r){var n;return!(n=r.match(/^\[\^((?:[^\]]|\\\]|\\\[)+?)\]:/))||(r=n[0].length-1,this.startBlock("footnote",e,[r,n[1]]),!1)},e.prototype.parseBlockDefinition=function(t,e,r){return!(r=r.match(/^\s*\[((?:[^\]]|\\\]|\\\[)+?)\]:\s*(.+)$/))||(this.definitions[r[1]]=this.cleanUrl(r[2]),this.startBlock("definition",e).endBlock(),!1)},e.prototype.parseBlockQuote=function(t,e,r){return!(r=r.match(/^(\s*)>/))||(this.isBlock("list")&&0<r[1].length||this.isBlock("quote")?this.setBlock(e):this.startBlock("quote",e),!1)},e.prototype.parseBlockTable=function(t,e,r,n,s){var l,i,o,a,c,h;if(c=r.match(/^((?:(?:(?:\||\+)(?:[ :]*\-+[ :]*)(?:\||\+))|(?:(?:[ :]*\-+[ :]*)(?:\||\+)(?:[ :]*\-+[ :]*))|(?:(?:[ :]*\-+[ :]*)(?:\||\+))|(?:(?:\||\+)(?:[ :]*\-+[ :]*)))+)$/)){if(this.isBlock("table"))t[3][0].push(t[3][2]),t[3][2]+=1,this.setBlock(e,t[3]);else{for(r=0,null==t||"normal"!==t[0]||s[t[2]].match(/^\s*$/)?this.startBlock("table",e):(r=1,this.backBlock(1,"table")),"|"===c[1][0]&&(c[1]=c[1].substring(1),"|"===c[1][c[1].length-1]&&(c[1]=c[1].substring(0,c[1].length-1))),i=[],o=0,a=(h=c[1].split(/\+|\|/)).length;o<a;o++)l="none",(c=h[o].match(/^\s*(:?)\-+(:?)\s*$/))&&(c[1]&&c[2]?l="center":c[1]?l="left":c[2]&&(l="right")),i.push(l);this.setBlock(e,[[r],i,r+1])}return!1}return!0},e.prototype.parseBlockSh=function(t,e,r){return!(r=r.match(/^(#+)(.*)$/))||(r=Math.min(r[1].length,6),this.startBlock("sh",e,r).endBlock(),!1)},e.prototype.parseBlockMh=function(t,e,r,n,s){return!((r=r.match(/^\s*((=|-){2,})\s*$/))&&null!=t&&"normal"===t[0]&&!s[t[2]].match(/^\s*$/))||(this.isBlock("normal")?this.backBlock(1,"mh","="===r[1][0]?1:2).setBlock(e).endBlock():this.startBlock("normal",e),!1)},e.prototype.parseBlockShr=function(t,e,r){return!r.match(/^(\* *){3,}\s*$/)||(this.startBlock("hr",e).endBlock(),!1)},e.prototype.parseBlockDhr=function(t,e,r){return!r.match(/^(- *){3,}\s*$/)||(this.startBlock("hr",e).endBlock(),!1)},e.prototype.parseBlockDefault=function(t,e,r,n){return this.isBlock("footnote")?r.match(/^(\s*)/)[1].length>=t[3][0]?this.setBlock(e):this.startBlock("normal",e):this.isBlock("table")?0<=r.indexOf("|")?(t[3][2]+=1,this.setBlock(e,t[3])):this.startBlock("normal",e):this.isBlock("quote")?r.match(/^(\s*)$/)?this.startBlock("normal",e):this.setBlock(e):null==t||"normal"!==t[0]?this.startBlock("normal",e):this.setBlock(e),!0},e.prototype.optimizeBlocks=function(t,e){var r,n,s,l,i,o,a,c,h=t.slice(0),p=e.slice(0);for(h=this.call("beforeOptimizeBlocks",h,p),s=0;null!=h[s];)l=!1,r=h[s],o=null!=h[s-1]?h[s-1]:null,i=null!=h[s+1]?h[s+1]:null,c=r[0],n=r[1],a=r[2],"pre"===c&&p.slice(r[1],r[2]+1).reduce(function(t,e){return e.match(/^\s*$/)&&t},!0)&&(r[0]=c="normal"),"normal"===c&&(c=["list","quote"],n===a&&p[n].match(/^\s*$/)&&null!=o&&null!=i&&o[0]===i[0]&&0<=c.indexOf(o[0])&&("list"!==o[0]||o[3][0]===i[3][0]&&o[3][1]===i[3][1])&&(h[s-1]=[o[0],o[1],i[2],null!=o[3]?o[3]:null],h.splice(s,2),l=!0)),l||(s+=1);return this.call("afterOptimizeBlocks",h,p)},e.prototype.parseCode=function(t,e,r){var n,s,l,i=e[0],o=e[1];return o=$(o),n=i.length,o.match(/^[_a-z0-9-\+\#\:\.]+$/i)?1<(e=o.split(":")).length&&(o=e[0],l=e[1],o=$(o),l=$(l)):o=null,s=!0,t=t.slice(1,-1).map(function(t){return t=t.replace(new RegExp("/^[ ]{"+n+"}/"),""),s&&!t.match(/^\s*$/)&&(s=!1),d(t)}),r=this.markLines(t,r+1).join("\n"),s?"":"<pre><code"+(o?' class="'+o+'"':"")+(l?' rel="'+l+'"':"")+">"+r+"</code></pre>"},e.prototype.parsePre=function(t,e,r){return t=t.map(function(t){return d(t.substring(4))}),(r=this.markLines(t,r).join("\n")).match(/^\s*$/)?"":"<pre><code>"+r+"</code></pre>"},e.prototype.parseAhtml=function(t,e,r){return $(this.markLines(t,r).join("\n"))},e.prototype.parseShtml=function(t,e,r){return $(this.markLines(t.slice(1,-1),r+1).join("\n"))},e.prototype.parseMath=function(t,e,r,n){return"<p>"+this.markLine(r,n)+d(t.join("\n"))+"</p>"},e.prototype.parseSh=function(t,e,r,n){t=this.markLine(r,n)+this.parseInline($(t[0],"# "));return t.match(/^\s*$/)?"":"<h"+e+">"+t+"</h"+e+">"},e.prototype.parseMh=function(t,e,r,n){return this.parseSh(t,e,r,n)},e.prototype.parseQuote=function(t,e,r){return(t=(t=t.map(function(t){return t.replace(/^\s*> ?/,"")})).join("\n")).match(/^\s*$/)?"":"<blockquote>"+this.parse(t,!0,r)+"</blockquote>"},e.prototype.parseList=function(t,e,r){for(var n,s,l,i,o,a="",c=e[0],e=e[1],h=[],p=0,u=0,f=t.length;u<f;u++)(i=(l=t[u]).match(new RegExp("^(\\s{"+c+"})((?:[0-9]+\\.?)|\\-|\\+|\\*)(\\s+)(.*)$")))?(h.push([i[4]]),p=h.length-1):h[p].push(l.replace(new RegExp("^\\s{"+c+"}"),""));for(n=0,s=h.length;n<s;n++)o=h[n],a+="<li>"+this.parse(o.join("\n"),!0,r)+"</li>",r+=o.length;return"<"+e+">"+a+"</"+e+">"},e.prototype.parseTable=function(t,e,r){for(var n,s,l,i,o,a,c,h,p,u,f,k=e[0],m=e[1],d=0<k.length&&0<k.reduce(function(t,e){return e+t}),g="<table>",B=!d||null,b=!1,y=s=0,v=t.length;s<v;y=++s)if(a=t[y],0<=k.indexOf(y))d&&b&&(B=!(d=!1));else{for(b=!0,"|"===(a=$(a))[0]&&"|"===(a=a.substring(1))[a.length-1]&&(a=a.substring(0,a.length-1)),n={},i=-1,l=0,o=(p=a.split("|").map(function(t){return t.match(/^\s*$/)?" ":$(t)})).length;l<o;l++)0<(h=p[l]).length?n[i+=1]=[null!=n[i]?n[i][0]+1:1,h]:null!=n[i]?n[i][0]+=1:n[0]=[1,h];for(y in d?g+="<thead>":B&&(g+="<tbody>"),g+="<tr",this.line&&(g+=' class="line" data-start="'+(r+y)+'" data-end="'+(r+y)+'" data-id="'+this.uniqid+'"'),g+=">",n)c=(u=n[y])[0],f=u[1],g+="<"+(u=d?"th":"td"),1<c&&(g+=' colspan="'+c+'"'),null!=m[y]&&"none"!==m[y]&&(g+=' align="'+m[y]+'"'),g+=">"+this.parseInline(f)+"</"+u+">";g+="</tr>",d?g+="</thead>":B=B&&!1}return null!==B&&(g+="</tbody>"),g+"</table>"},e.prototype.parseHr=function(t,e,r){return this.line?'<hr class="line" data-start="'+r+'" data-end="'+r+'">':"<hr>"},e.prototype.parseNormal=function(t,e,r){var n,s=0;return t=t.map((n=this,function(t){return(t=n.parseInline(t)).match(/^\s*$/)||(t=n.markLine(r+s)+t),s+=1,t})),(t=(t=(t=$(t.join("\n"))).replace(/(\n\s*){2,}/g,function(){return e=!1,"</p><p>"})).replace(/\n/g,"<br>")).match(/^\s*$/)?"":e?t:"<p>"+t+"</p>"},e.prototype.parseFootnote=function(t,e){e[0];var e=e[1],e=this.footnotes.indexOf(e);return 0<=e&&((t=t.slice(0))[0]=t[0].replace(/^\[\^((?:[^\]]|\]|\[)+?)\]:/,""),this.footnotes[e]=t),""},e.prototype.parseDefinition=function(){return""},e.prototype.parseHtml=function(t,e,r){var n;return t=t.map((n=this,function(t){return n.parseInline(t,null!=n.specialWhiteList[e]?n.specialWhiteList[e]:"")})),this.markLines(t,r).join("\n")},e.prototype.cleanUrl=function(t){var e;return(e=t.match(/^\s*((http|https|ftp|mailto):\S+)/i))||(e=t.match(/^\s*(\S+)/))?e[1]:"#"},e.prototype.escapeBracket=function(t){return g(["\\[","\\]","\\(","\\)"],["[","]","(",")"],t)},e.prototype.startBlock=function(t,e,r){return null==r&&(r=null),this.pos+=1,this.current=t,this.blocks.push([t,e,e,r]),this},e.prototype.endBlock=function(){return this.current="normal",this},e.prototype.isBlock=function(t,e){return null==e&&(e=null),this.current===t&&(null===e||this.blocks[this.pos][3]===e)},e.prototype.getBlock=function(){return null!=this.blocks[this.pos]?this.blocks[this.pos]:null},e.prototype.setBlock=function(t,e){return null==t&&(t=null),null==e&&(e=null),null!==t&&(this.blocks[this.pos][2]=t),null!==e&&(this.blocks[this.pos][3]=e),this},e.prototype.backBlock=function(t,e,r){var n;return null==r&&(r=null),this.pos<0?this.startBlock(e,0,r):(n=this.blocks[this.pos][2],this.blocks[this.pos][2]=n-t,r=[e,n-t+1,n,r],this.blocks[this.pos][1]<=this.blocks[this.pos][2]?(this.pos+=1,this.blocks.push(r)):this.blocks[this.pos]=r,this.current=e,this)},e.prototype.combineBlock=function(){var t,e;return this.pos<1||(e=this.blocks[this.pos-1].slice(0),t=this.blocks[this.pos].slice(0),e[2]=t[2],this.blocks[this.pos-1]=e,this.current=e[0],this.blocks=this.blocks.slice(0,-1),--this.pos),this},t=e,"undefined"!=typeof module&&null!==module?module.exports=t:"undefined"!=typeof window&&null!==window&&(window.HyperDown=t)}).call(this);
\ No newline at end of file
diff --git a/admin/src/js/hyperdown.js b/admin/src/js/hyperdown.js
index c485d5ff..58d9ffba 100644
--- a/admin/src/js/hyperdown.js
+++ b/admin/src/js/hyperdown.js
@@ -518,7 +518,9 @@
     Parser.prototype.parseBlockList = function(block, key, line, state) {
       var matches, space, type;
       if ((this.isBlock('list')) && !line.match(/^\s*\[((?:[^\]]|\\\]|\\\[)+?)\]:\s*(.+)$/)) {
-        if ((state.empty <= 1) && !!(matches = line.match(/^(\s*)\S+/)) && matches[1].length >= (block[3][0] + state.empty)) {
+        if (!!(line.match(/^(\s*)(~{3,}|`{3,})([^`~]*)$/i))) {
+          return true;
+        } else if ((state.empty <= 1) && !!(matches = line.match(/^(\s*)\S+/)) && matches[1].length >= (block[3][0] + state.empty)) {
           state.empty = 0;
           this.setBlock(key);
           return false;
@@ -546,7 +548,7 @@
       return true;
     };
 
-    Parser.prototype.parseBlockCode = function(block, key, line) {
+    Parser.prototype.parseBlockCode = function(block, key, line, state) {
       var isAfterList, matches, space;
       if (!!(matches = line.match(/^(\s*)(~{3,}|`{3,})([^`~]*)$/i))) {
         if (this.isBlock('code')) {
@@ -559,8 +561,8 @@
         } else {
           isAfterList = false;
           if (this.isBlock('list')) {
-            space = block[3];
-            isAfterList = (space > 0 && matches[1].length >= space) || matches[1].length > space;
+            space = block[3][0];
+            isAfterList = matches[1].length >= space + state.empty;
           }
           this.startBlock('code', key, [matches[1], matches[3], isAfterList]);
         }
diff --git a/var/HyperDown.php b/var/HyperDown.php
index 1386c34f..493300ef 100644
--- a/var/HyperDown.php
+++ b/var/HyperDown.php
@@ -144,7 +144,7 @@ class HyperDown
         });
 
         foreach ($this->blockParsers as $parser) {
-            [$name] = $parser;
+            list($name) = $parser;
 
             if (isset($parser[2])) {
                 $this->_parsers[$name] = $parser[2];
@@ -256,7 +256,7 @@ class HyperDown
         }
 
         foreach ($blocks as $block) {
-            [$type, $start, $end, $value] = $block;
+            list($type, $start, $end, $value) = $block;
             $extract = array_slice($lines, $start, $end - $start + 1);
             $method = 'parse' . ucfirst($type);
 
@@ -692,14 +692,17 @@ class HyperDown
     private function parseBlockList($block, $key, $line, &$state)
     {
         if ($this->isBlock('list') && !preg_match("/^\s*\[((?:[^\]]|\\]|\\[)+?)\]:\s*(.+)$/", $line)) {
-            if ($state['empty'] <= 1
+            if (preg_match("/^(\s*)(~{3,}|`{3,})([^`~]*)$/i", $line)) {
+                // ignore code
+                return true;
+            } elseif ($state['empty'] <= 1
                 && preg_match("/^(\s*)\S+/", $line, $matches)
                 && strlen($matches[1]) >= ($block[3][0] + $state['empty'])) {
 
                 $state['empty'] = 0;
                 $this->setBlock($key);
                 return false;
-            } else if (preg_match("/^(\s*)$/", $line) && $state['empty'] == 0) {
+            } elseif (preg_match("/^(\s*)$/", $line) && $state['empty'] == 0) {
                 $state['empty'] ++;
                 $this->setBlock($key);
                 return false;
@@ -732,9 +735,10 @@ class HyperDown
      * @param $block
      * @param $key
      * @param $line
+     * @param $state
      * @return bool
      */
-    private function parseBlockCode($block, $key, $line)
+    private function parseBlockCode($block, $key, $line, $state)
     {
         if (preg_match("/^(\s*)(~{3,}|`{3,})([^`~]*)$/i", $line, $matches)) {
             if ($this->isBlock('code')) {
@@ -751,10 +755,9 @@ class HyperDown
                 $isAfterList = false;
 
                 if ($this->isBlock('list')) {
-                    $space = $block[3];
+                    $space = $block[3][0];
 
-                    $isAfterList = ($space > 0 && strlen($matches[1]) >= $space)
-                        || strlen($matches[1]) > $space;
+                    $isAfterList = strlen($matches[1]) >= $space + $state['empty'];
                 }
 
                 $this->startBlock('code', $key, array(
@@ -763,7 +766,7 @@ class HyperDown
             }
 
             return false;
-        } else if ($this->isBlock('code')) {
+        } elseif ($this->isBlock('code')) {
             $this->setBlock($key);
             return false;
         }
@@ -789,7 +792,7 @@ class HyperDown
                 }
 
                 return false;
-            } else if ($this->isBlock('shtml')) {
+            } elseif ($this->isBlock('shtml')) {
                 $this->setBlock($key);
                 return false;
             }
@@ -812,7 +815,7 @@ class HyperDown
                 if ($this->isBlock('ahtml')) {
                     $this->setBlock($key);
                     return false;
-                } else if (empty($matches[2]) || $matches[2] != '/') {
+                } elseif (empty($matches[2]) || $matches[2] != '/') {
                     $this->startBlock('ahtml', $key);
                     preg_match_all("/<({$this->_blockHtmlTags})(\s+[^>]*)?>/i", $line, $allMatches);
                     $lastMatch = $allMatches[1][count($allMatches[0]) - 1];
@@ -824,14 +827,14 @@ class HyperDown
                     }
                     return false;
                 }
-            } else if (!!$state['html'] && strpos($line, "</{$state['html']}>") !== false) {
+            } elseif (!!$state['html'] && strpos($line, "</{$state['html']}>") !== false) {
                 $this->setBlock($key)->endBlock();
                 $state['html'] = false;
                 return false;
-            } else if ($this->isBlock('ahtml')) {
+            } elseif ($this->isBlock('ahtml')) {
                 $this->setBlock($key);
                 return false;
-            } else if (preg_match("/^\s*<!\-\-(.*?)\-\->\s*$/", $line, $matches)) {
+            } elseif (preg_match("/^\s*<!\-\-(.*?)\-\->\s*$/", $line, $matches)) {
                 $this->startBlock('ahtml', $key)->endBlock();
                 return false;
             }
@@ -856,7 +859,7 @@ class HyperDown
             }
 
             return false;
-        } else if ($this->isBlock('math')) {
+        } elseif ($this->isBlock('math')) {
             $this->setBlock($key);
             return false;
         }
@@ -881,7 +884,7 @@ class HyperDown
             }
 
             return false;
-        } else if ($this->isBlock('pre') && preg_match("/^\s*$/", $line)) {
+        } elseif ($this->isBlock('pre') && preg_match("/^\s*$/", $line)) {
             $this->setBlock($key);
             return false;
         }
@@ -905,7 +908,7 @@ class HyperDown
             }
 
             return false;
-        } else if (preg_match("/<\/({$state['special']})>\s*$/i", $line, $matches)) {
+        } elseif (preg_match("/<\/({$state['special']})>\s*$/i", $line, $matches)) {
             $tag = strtolower($matches[1]);
 
             if ($this->isBlock('html', $tag)) {
@@ -914,7 +917,7 @@ class HyperDown
             }
 
             return false;
-        } else if ($this->isBlock('html')) {
+        } elseif ($this->isBlock('html')) {
             $this->setBlock($key);
             return false;
         }
@@ -972,7 +975,7 @@ class HyperDown
         if (preg_match("/^(\s*)>/", $line, $matches)) {
             if ($this->isBlock('list') && strlen($matches[1]) > 0) {
                 $this->setBlock($key);
-            } else if ($this->isBlock('quote')) {
+            } elseif ($this->isBlock('quote')) {
                 $this->setBlock($key);
             } else {
                 $this->startBlock('quote', $key);
@@ -1027,9 +1030,9 @@ class HyperDown
                     if (preg_match("/^\s*(:?)\-+(:?)\s*$/", $row, $matches)) {
                         if (!empty($matches[1]) && !empty($matches[2])) {
                             $align = 'center';
-                        } else if (!empty($matches[1])) {
+                        } elseif (!empty($matches[1])) {
                             $align = 'left';
-                        } else if (!empty($matches[2])) {
+                        } elseif (!empty($matches[2])) {
                             $align = 'right';
                         }
                     }
@@ -1143,14 +1146,14 @@ class HyperDown
             } else {
                 $this->startBlock('normal', $key);
             }
-        } else if ($this->isBlock('table')) {
+        } elseif ($this->isBlock('table')) {
             if (false !== strpos($line, '|')) {
                 $block[3][2] ++;
                 $this->setBlock($key, $block[3]);
             } else {
                 $this->startBlock('normal', $key);
             }
-        } else if ($this->isBlock('quote')) {
+        } elseif ($this->isBlock('quote')) {
             if (!preg_match("/^(\s*)$/", $line)) { // empty line
                 $this->setBlock($key);
             } else {
@@ -1184,7 +1187,7 @@ class HyperDown
             $prevBlock = isset($blocks[$key - 1]) ? $blocks[$key - 1] : NULL;
             $nextBlock = isset($blocks[$key + 1]) ? $blocks[$key + 1] : NULL;
 
-            [$type, $from, $to] = $block;
+            list($type, $from, $to) = $block;
 
             if ('pre' == $type) {
                 $isEmpty = array_reduce(
@@ -1239,7 +1242,7 @@ class HyperDown
      */
     private function parseCode(array $lines, array $parts, $start)
     {
-        [$blank, $lang] = $parts;
+        list($blank, $lang) = $parts;
         $lang = trim($lang);
         $count = strlen($blank);
 
@@ -1248,7 +1251,7 @@ class HyperDown
         } else {
             $parts = explode(':', $lang);
             if (count($parts) > 1) {
-                [$lang, $rel] = $parts;
+                list($lang, $rel) = $parts;
                 $lang = trim($lang);
                 $rel = trim($rel);
             }
@@ -1388,7 +1391,7 @@ class HyperDown
     private function parseList(array $lines, $value, $start)
     {
         $html = '';
-        [$space, $type] = $value;
+        list($space, $type) = $value;
         $rows = array();
         $last = 0;
 
@@ -1417,7 +1420,7 @@ class HyperDown
      */
     private function parseTable(array $lines, array $value, $start)
     {
-        [$ignores, $aligns] = $value;
+        list($ignores, $aligns) = $value;
         $head = count($ignores) > 0 && array_sum($ignores) > 0;
 
         $html = '<table>';
@@ -1462,7 +1465,7 @@ class HyperDown
                     $columns[$last] = array(
                         isset($columns[$last]) ? $columns[$last][0] + 1 : 1,  $row
                     );
-                } else if (isset($columns[$last])) {
+                } elseif (isset($columns[$last])) {
                     $columns[$last][0] ++;
                 } else {
                     $columns[0] = array(1, $row);
@@ -1471,7 +1474,7 @@ class HyperDown
 
             if ($head) {
                 $html .= '<thead>';
-            } else if ($body) {
+            } elseif ($body) {
                 $html .= '<tbody>';
             }
 
@@ -1480,7 +1483,7 @@ class HyperDown
                     . '" data-id="' . $this->_uniqid . '"' : '') . '>';
 
             foreach ($columns as $key => $column) {
-                [$num, $text] = $column;
+                list($num, $text) = $column;
                 $tag = $head ? 'th' : 'td';
 
                 $html .= "<{$tag}";
@@ -1499,7 +1502,7 @@ class HyperDown
 
             if ($head) {
                 $html .= '</thead>';
-            } else if ($body) {
+            } elseif ($body) {
                 $body = false;
             }
         }
@@ -1562,7 +1565,7 @@ class HyperDown
      */
     private function parseFootnote(array $lines, array $value)
     {
-        [$space, $note] = $value;
+        list($space, $note) = $value;
         $index = array_search($note, $this->_footnotes);
 
         if (false !== $index) {
@@ -1609,7 +1612,7 @@ class HyperDown
     {
         if (preg_match("/^\s*((http|https|ftp|mailto):\S+)/i", $url, $matches)) {
             return $matches[1];
-        } else if (preg_match("/^\s*(\S+)/i", $url, $matches)) {
+        } elseif (preg_match("/^\s*(\S+)/i", $url, $matches)) {
             return $matches[1];
         } else {
             return '#';