add textformat block function

libs/plugins/block.textformat.php

@@ -0,0 +1,71 @@
+<?php
+
+/*
+ * Smarty plugin
+ * -------------------------------------------------------------
+ * Type:     block function
+ * Name:     textformat
+ * Purpose:  format text a certain way with preset styles
+ *           or custom wrap/indent settings
+ * Params:   style: string (email)
+ *           indent: integer (0)
+ *           wrap: integer (80)
+ *           wrap_char string ("\n")
+ *           indent_char: string (" ")
+ *           wrap_boundary: boolean (true)
+ * -------------------------------------------------------------
+ */
+function smarty_block_textformat($params, $content, &$this)
+{
+	$style = null;
+	$indent = 0;
+	$indent_first = 0;
+	$indent_char = ' ';
+	$wrap = 80;
+	$wrap_char = "\n";
+	$wrap_cut = false;
+	$assign = null;
+	
+	if($content == null) {
+		return true;
+	}
+
+    extract($params);
+
+	if($style == 'email') {
+		$wrap = 72;
+	}	
+	
+	// split into paragraphs	
+	$paragraphs = preg_split('![\r\n][\r\n]!',$content);
+	
+	foreach($paragraphs as $paragraph) {
+		if($paragraph == '') {
+			continue;
+		}
+		// convert mult. spaces & special chars to single space
+		$paragraph = preg_replace(array('!\s+!','!(^\s+)|(\s+$)!'),array(' ',''),$paragraph);
+		// indent first line
+		if($indent_first > 0) {
+			$paragraph = str_repeat($indent_char,$indent_first) . $paragraph;
+		}
+		// wordwrap sentences
+		$paragraph = wordwrap($paragraph, $wrap - $indent, $wrap_char, $wrap_cut);
+		// indent lines
+		if($indent > 0) {
+			$paragraph = preg_replace('!^!m',str_repeat($indent_char,$indent),$paragraph);
+		}
+		$output .= $paragraph . $wrap_char . $wrap_char;
+	}
+				
+	if($assign != null) {
+		$this->assign($assign,$output);
+	} else {
+		echo $output;
+	}
+	//echo $content;
+}
+
+/* vim: set expandtab: */
+
+?>