1 files changed, 46 insertions, 0 deletions

diff --git a/html.c b/html.c
index 7f81965..138c649 100644
--- a/html.c
+++ b/html.c
@@ -156,6 +156,52 @@ ssize_t html_ntxt(const char *txt, size_t len)
         return slen;
 }
 
+ssize_t html_ntxt_pre(const char *txt, size_t len)
+{
+        const char *t = txt;
+        ssize_t slen;
+        int prev = 0;
+
+        if (len > SSIZE_MAX)
+                return -1;
+
+        slen = (ssize_t) len;
+        while (t && *t && slen--) {
+                int c = *t;
+                if (c == '<' || c == '>' || c == '&' || c == ' ' || c == '\t') {
+                        html_raw(txt, t - txt);
+                        if (c == '>')
+                                html("&gt;");
+                        else if (c == '<')
+                                html("&lt;");
+                        else if (c == '&')
+                                html("&amp;");
+                        else if (c == ' ') {
+                                if (!prev || prev == ' ' || prev == '\t') {
+                                        html("&#160;");
+                                        /* next byte can be unescaped ' ' */
+                                        c = 160;
+                                } else {
+                                        html(" ");
+                                }
+                        } else if (c == '\t') {
+                                html("&#160;&#160;&#160;&#160;"
+                                     "&#160;&#160;&#160;&#160;");
+                                /* next byte can be unescaped ' ' */
+                                c = 160;
+                        }
+                        txt = t + 1;
+                }
+                prev = c;
+                t++;
+        }
+        if (t != txt)
+                html_raw(txt, t - txt);
+        return slen;
+}
+
+
+
 void html_attrf(const char *fmt, ...)
 {
         va_list ap;