Avoid generating an index section if there actually is no index.

git-svn-id: svn://svn.tartarus.org/sgt/halibut@4321 cda61777-01e9-0310-a592-d414129be87e

diff --git a/bk_html.c b/bk_html.c
index 7ae80b5..23219be 100644 (file)
--- a/bk_html.c
+++ b/bk_html.c
@@ -464,6 +464,7 @@ void html_backend(paragraph *sourceform, keywordlist *keywords,
     htmlconfig conf;
     htmlfilelist files = { NULL, NULL, NULL, NULL, NULL };
     htmlsectlist sects = { NULL, NULL }, nonsects = { NULL, NULL };
+    int has_index;
 
     IGNORE(unused);
 
@@ -532,16 +533,19 @@ void html_backend(paragraph *sourceform, keywordlist *keywords,
                                                        sect->fragment);
            }
 
-       /* And the index. */
-       sect = html_new_sect(&sects, NULL);
-       sect->text = NULL;
-       sect->type = INDEX;
-       sect->parent = topsect;
-       html_file_section(&conf, &files, sect, 0);   /* peer of chapters */
-       sect->fragment = utoa_dup(conf.index_text, CS_ASCII);
-       sect->fragment = html_sanitise_fragment(&files, sect->file,
-                                               sect->fragment);
-       files.index = sect->file;
+       /* And the index, if we have one. */
+       has_index = (count234(idx->entries) > 0);
+       if (has_index) {
+           sect = html_new_sect(&sects, NULL);
+           sect->text = NULL;
+           sect->type = INDEX;
+           sect->parent = topsect;
+           html_file_section(&conf, &files, sect, 0);   /* peer of chapters */
+           sect->fragment = utoa_dup(conf.index_text, CS_ASCII);
+           sect->fragment = html_sanitise_fragment(&files, sect->file,
+                                                   sect->fragment);
+           files.index = sect->file;
+       }
     }
 
     /*
@@ -862,13 +866,15 @@ void html_backend(paragraph *sourceform, keywordlist *keywords,
 
                html_text(&ho, conf.nav_separator);
 
-               if (f != files.index) {
-                   element_open(&ho, "a");
-                   element_attr(&ho, "href", files.index->filename);
+               if (has_index) {
+                   if (f != files.index) {
+                       element_open(&ho, "a");
+                       element_attr(&ho, "href", files.index->filename);
+                   }
+                   html_text(&ho, conf.index_text);
+                   if (f != files.index)
+                       element_close(&ho, "a");
                }
-               html_text(&ho, conf.index_text);
-               if (f != files.index)
-                   element_close(&ho, "a");
 
                html_text(&ho, conf.nav_separator);