all repos — cgit @ 70787254b270b1505aa8427813f64131be5df86c

a hyperfast web frontend for git written in c 

html: html_ntxt with no ellipsis

For implementing a ui-blame page, there is need for a function that
outputs a selection from a block of text, transformed for HTML output,
but with no further modifications or additions.

Signed-off-by: Jeff Smith <whydoubt@gmail.com>
Reviewed-by: John Keeping <john@keeping.me.uk>
Jeff Smith whydoubt@gmail.com
Sun, 01 Oct 2017 23:39:05 -0500
commit

70787254b270b1505aa8427813f64131be5df86c

parent

3b485cc5422f800d142c7023295e82c0a1c10b19

3 files changed, 14 insertions(+), 23 deletions(-)

jump to
M html.c → html.c 
@@ -124,29 +124,20 @@ }
 
 void html_txt(const char *txt)
 {
-	const char *t = txt;
-	while (t && *t) {
-		int c = *t;
-		if (c == '<' || c == '>' || c == '&') {
-			html_raw(txt, t - txt);
-			if (c == '>')
-				html("&gt;");
-			else if (c == '<')
-				html("&lt;");
-			else if (c == '&')
-				html("&amp;");
-			txt = t + 1;
-		}
-		t++;
-	}
-	if (t != txt)
-		html(txt);
+	if (txt)
+		html_ntxt(txt, strlen(txt));
 }
 
-void html_ntxt(int len, const char *txt)
+ssize_t html_ntxt(const char *txt, size_t len)
 {
 	const char *t = txt;
-	while (t && *t && len--) {
+	ssize_t slen;
+
+	if (len > SSIZE_MAX)
+		return -1;
+
+	slen = (ssize_t) len;
+	while (t && *t && slen--) {
 		int c = *t;
 		if (c == '<' || c == '>' || c == '&') {
 			html_raw(txt, t - txt);

@@ -162,8 +153,7 @@ t++;
 	}
 	if (t != txt)
 		html_raw(txt, t - txt);
-	if (len < 0)
-		html("...");
+	return slen;
 }
 
 void html_attrf(const char *fmt, ...)
M html.h → html.h 
@@ -19,7 +19,7 @@ __attribute__((format (printf,1,2)))
 extern void html_attrf(const char *format,...);
 
 extern void html_txt(const char *txt);
-extern void html_ntxt(int len, const char *txt);
+extern ssize_t html_ntxt(const char *txt, size_t len);
 extern void html_attr(const char *txt);
 extern void html_url_path(const char *txt);
 extern void html_url_arg(const char *txt);
M ui-repolist.c → ui-repolist.c 
@@ -329,7 +329,8 @@ html("</td><td>");
 		repourl = cgit_repourl(ctx.repo->url);
 		html_link_open(repourl, NULL, NULL);
 		free(repourl);
-		html_ntxt(ctx.cfg.max_repodesc_len, ctx.repo->desc);
+		if (html_ntxt(ctx.repo->desc, ctx.cfg.max_repodesc_len) < 0)
+			html("...");
 		html_link_close();
 		html("</td><td>");
 		if (ctx.cfg.enable_index_owner) {