From ce1f37aae46ea95020d7b865f7a80e8abdfad0d8 Mon Sep 17 00:00:00 2001
From: Michael Krelin <hacker@klever.net>
Date: Sat, 29 Jan 2005 21:21:05 +0000
Subject: initial commit into repository

---
(limited to 'lib/util.cc')

diff --git a/lib/util.cc b/lib/util.cc
new file mode 100644
index 0000000..1a81c56
--- a/dev/null
+++ b/lib/util.cc
@@ -0,0 +1,83 @@
+#ifdef USE_PCH
+ #include "pch.h"
+#else
+ #include <cassert>
+ #include "sitecing/util.h"
+#endif
+
+namespace sitecing {
+
+    static const char *unsafeChars = "<>& \n\"";
+
+    string html_escape(const string& str,int flags) {
+	string rv = str;
+	string::size_type screwed = 0;
+	for(;;) {
+	    screwed = rv.find_first_of(unsafeChars,screwed);
+	    if(screwed == string::npos)
+		break;
+	    while(screwed<rv.length() && strchr(unsafeChars,rv.at(screwed))) {
+		char danger = rv.at(screwed);
+		switch(danger) {
+		    case '<':
+			rv.replace(screwed,1,"&lt;"); screwed+=4;
+			break;
+		    case '>':
+			rv.replace(screwed,1,"&gt;"); screwed+=4;
+			break;
+		    case '&':
+			rv.replace(screwed,1,"&amp;"); screwed+=5;
+			break;
+		    case ' ':
+			if(flags&html_escape_nbsp) {
+			    rv.replace(screwed,1,"&nbsp;"); screwed+=6;
+			}else
+			    screwed++;
+			break;
+		    case '\n':
+			if(flags&html_escape_br) {
+			    if(flags&html_escape_br_noslash) {
+				rv.replace(screwed,1,"<br>\n"); screwed += 5;
+			    }else{
+				rv.replace(screwed,1,"<br/>\n"); screwed += 6;
+			    }
+			}else
+			    screwed++;
+			break;
+		    case '\"':
+			if(flags&html_escape_quot) {
+			    rv.replace(screwed,1,"&quot;"); screwed+=6;
+			}else
+			    screwed++;
+			break;
+		    default:
+			assert(false);
+			break;
+		}
+	    }
+	}
+	return rv;
+    }
+
+    void checkpoint::set() {
+	point = stream->tellp();
+	if(last_will==will_intestate)
+	    last_will = will_rollback;
+    }
+
+    void checkpoint::make_will(will_t lw) {
+	last_will = lw;
+    }
+
+    void checkpoint::rollback() {
+	stream->seekp(point);
+	if(last_will == will_rollback)
+	    last_will = will_intestate;
+    }
+    void checkpoint::commit() {
+	point = stream->tellp();
+	if(last_will == will_rollback)
+	    last_will = will_intestate;
+    }
+
+}
--
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