add function to print a single line, ignoring \r and \n

This can happen when there is no newline at end of file in the diff which is
served by libgit2 as:

"\n\ No newline at end of file\n".

diff --git a/src/stagit.c b/src/stagit.c
index d99ae191580cafebbee451b168911ff7f64ec45c..bdf2f70fe64568bd4845b0fdbf76dee2d69b4219 100644 (file)
--- a/src/stagit.c
+++ b/src/stagit.c
@@ -321,6 +321,26 @@ xmlencodeline(FILE *fp, const char *s, size_t len)
        }
 }
 
+/* Escape characters below as HTML 2.0 / XML 1.0, ignore printing '\n', '\r' */
+void
+xmlencodeline(FILE *fp, const char *s, size_t len)
+{
+       size_t i;
+
+       for (i = 0; *s && i < len; s++, i++) {
+               switch(*s) {
+               case '<':  fputs("&lt;",   fp); break;
+               case '>':  fputs("&gt;",   fp); break;
+               case '\'': fputs("&#39;",  fp); break;
+               case '&':  fputs("&amp;",  fp); break;
+               case '"':  fputs("&quot;", fp); break;
+               case '\r': break; /* ignore CR */
+               case '\n': break; /* ignore LF */
+               default:   putc(*s, fp);
+               }
+       }
+}
+
 int
 mkdirp(const char *path)
 {