Updates to fix issues with else and with whitespace only lines.

Foml.php

@@ -8,9 +8,12 @@
 
 class Foml
 {
+    const PHP_MODE = 'php';
+    const XML_MODE = 'xml';
+
     static $fopExec = "fop-1.0/fop";           // fopExec is relative to this directory
     static $tempDir = null;                    // defaults to system temp directory
-    static $keepTempFiles = false;             // set to true for debugging
+    static $keepTempFiles = true;              // set to true for debugging
     static $pdfMimeType = "application/pdf";
 
     static function GeneratePhp($Template)
@@ -33,10 +36,12 @@ static function GenerateXslFo($Template, $Args=null)
         }
         $_php = Foml::GeneratePhp($Template);
 
+        //Dump($_php); exit;
         ob_start();
         eval("?".">".$_php);  // prefixed with ? > to exit implicit php mode
         $xslFo = ob_get_contents();
         ob_end_clean();
+        //Dump($xslFo); exit;
         return $xslFo;
     }
 
@@ -98,7 +103,7 @@ static function RenderInline($Template, $Args=null)
 
     static function RenderAttachment($Template, $Filename, $Args=null)
     {
-        $headers = array("Content-Disposition: attachment; filename=\"{$FileName}\"");
+        $headers = array("Content-Disposition: attachment; filename=\"{$Filename}\"");
         Foml::Render($Template, $Args, $headers);
     }
 }

FomlDoc.php

@@ -4,6 +4,7 @@ class FomlDoc extends FomlNode
 
     function RenderToString()
     {
+        $this->state = new FomlRenderState();
         ob_start();
         $this->Render();
         $output = ob_get_contents();

FomlExecNode.php

@@ -1,6 +1,7 @@
 <?php
 class FomlExecNode extends FomlNode
 {
+    public $mode = Foml::PHP_MODE;
     const MATCH_RE = "/^-\s*(.*)/";
     /*
      * Examples
@@ -31,19 +32,18 @@ function __construct($Matches)
 
     function RenderPrefix()
     {
-        print "<?php ";
         print $this->code;
         if ($this->hasBlock) {
-            print "{ ?>";
+            print "{";
         } else {
-            print "; ?>";
+            print ";";
         }
     }
 
     function RenderSuffix()
     {
         if ($this->hasBlock) {
-            print "<?php } ?>";
+            print "}";
         }
     }
 }

FomlInsertNode.php

@@ -1,6 +1,7 @@
 <?php
 class FomlInsertNode extends FomlNode
 {
+    public $mode = Foml::PHP_MODE;
     const MATCH_RE = "/^=\s*(.*)/";
 
     function __construct($Matches)
@@ -10,9 +11,8 @@ function __construct($Matches)
 
     function RenderPrefix()
     {
-        print "<?php print ";
+        print "print ";
         print $this->code;
-        print "; ?>";
-        print " \n";
+        print ";\n";
     }
 }

FomlNode.php

@@ -2,6 +2,8 @@
 class FomlNode
 {
     public $children = array();
+    public $state = null;  // set to an instance of FomlState before calling render
+    public $mode = Foml::XML_MODE;
 
     function RenderPrefix()
     {
@@ -11,12 +13,30 @@ function RenderSuffix()
     {
     }
 
-    function Render($Indent=0)
+    function SetMode($Mode)
     {
+        if ($Mode == Foml::PHP_MODE) {
+            assert($this->state);
+            if ($this->state->mode == Foml::XML_MODE) {
+                print "<?php ";
+            }
+        } elseif ($Mode == Foml::XML_MODE) {
+            if ($this->state->mode == Foml::PHP_MODE) {
+                print " ?>";
+            }
+        }
+        $this->state->mode = $Mode;
+    }
+
+    function Render()
+    {
+        $this->SetMode($this->mode);
         $this->RenderPrefix();
         foreach ($this->children as $child) {
+            $child->state = $this->state;
             $child->Render();
         }
+        $this->SetMode($this->mode);
         $this->RenderSuffix();
     }
 }

FomlParseTree.php

@@ -60,7 +60,7 @@ static function ParseLines($Text)
             }
 
             # only pure whitespace lines will be skipped here
-            if (preg_match("/^(\s*)(.+)/", $line, $matches)) {
+            if (preg_match("/^(\s*)([^\s].+)/", $line, $matches)) {
                 $tree = new FomlParseTree();
                 $tree->indent = strlen($matches[1]);
                 $tree->text = $matches[2];
@@ -93,7 +93,8 @@ function Generate()
 
         // Generate and add children to the node.
         foreach ($this->children as $child) {
-            $node->children[] = $child->Generate();
+            $childNode = $child->Generate();
+            $node->children[] = $childNode;
         }
 
         return $node;

FomlRenderState.php

@@ -0,0 +1,6 @@
+<?php
+class FomlRenderState
+{
+    public $mode = Foml::XML_MODE;
+}
+?>