vim-patch:8.1.0911: tag line with Ex command cannot have extra fields

Problem:    Tag line with Ex command cannot have extra fields.
Solution:   Recognize |;" as the end of the command. (closes vim/vim#2402)
943e9639a9

runtime/doc/tagsrch.txt

@@ -537,7 +537,14 @@ only supported by new versions of ctags (such as Exuberant ctags).
 {term}		;" The two characters semicolon and double quote.  This is
 		interpreted by Vi as the start of a comment, which makes the
 		following be ignored.  This is for backwards compatibility
-		with Vi, it ignores the following fields.
+		with Vi, it ignores the following fields. Example:
+			APP	file	/^static int APP;$/;"	v
+		When {tagaddress} is not a line number or search pattern, then
+		{term} must be |;".  Here the bar ends the command (excluding
+		the bar) and ;" is used to have Vi ignore the rest of the
+		line.  Example:
+			APP	file.c	call cursor(3, 4)|;"	v
+			
 {field} ..	A list of optional fields.  Each field has the form:
 
 			<Tab>{fieldname}:{value}

src/nvim/tag.c

@@ -2236,8 +2236,13 @@ parse_match (
     p = tagp->command;
     if (find_extra(&p) == OK) {
       tagp->command_end = p;
-      p += 2;           /* skip ";\"" */
-      if (*p++ == TAB)
+      if (p > tagp->command && p[-1] == '|') {
+        tagp->command_end = p - 1;  // drop trailing bar
+      } else {
+        tagp->command_end = p;
+      }
+      p += 2;  // skip ";\""
+      if (*p++ == TAB) {
         while (ASCII_ISALPHA(*p)) {
           if (STRNCMP(p, "kind:", 5) == 0) {
             tagp->tagkind = p + 5;
@@ -2253,6 +2258,7 @@ parse_match (
             break;
           p = pt + 1;
         }
+      }
     }
     if (tagp->tagkind != NULL) {
       for (p = tagp->tagkind;
@@ -2677,22 +2683,30 @@ static int find_extra(char_u **pp)
 {
   char_u      *str = *pp;
 
-  /* Repeat for addresses separated with ';' */
+  // Repeat for addresses separated with ';'
   for (;; ) {
-    if (ascii_isdigit(*str))
+    if (ascii_isdigit(*str)) {
       str = skipdigits(str);
-    else if (*str == '/' || *str == '?') {
-      str = skip_regexp(str + 1, *str, FALSE, NULL);
-      if (*str != **pp)
+    } else if (*str == '/' || *str == '?') {
+      str = skip_regexp(str + 1, *str, false, NULL);
+      if (*str != **pp) {
         str = NULL;
-      else
-        ++str;
-    } else
-      str = NULL;
+      } else {
+        str++;
+      }
+    } else {
+      // not a line number or search string, look for terminator.
+      str = (char_u *)strstr((char *)str, "|;\"");
+      if (str != NULL) {
+        str++;
+        break;
+      }
+    }
     if (str == NULL || *str != ';'
-        || !(ascii_isdigit(str[1]) || str[1] == '/' || str[1] == '?'))
+        || !(ascii_isdigit(str[1]) || str[1] == '/' || str[1] == '?')) {
       break;
-    ++str;      /* skip ';' */
+    }
+    str++;  // skip ';'
   }
 
   if (str != NULL && STRNCMP(str, ";\"", 2) == 0) {

src/nvim/testdir/test_taglist.vim

@@ -5,7 +5,9 @@ func Test_taglist()
 	\ "FFoo\tXfoo\t1",
 	\ "FBar\tXfoo\t2",
 	\ "BFoo\tXbar\t1",
-	\ "BBar\tXbar\t2"
+	\ "BBar\tXbar\t2",
+	\ "Kindly\tXbar\t3;\"\tv\tfile:",
+	\ "Command\tXbar\tcall cursor(3, 4)|;\"\td",
 	\ ], 'Xtags')
   set tags=Xtags
   split Xtext
@@ -15,6 +17,18 @@ func Test_taglist()
   call assert_equal(['FFoo', 'BFoo'], map(taglist("Foo", "Xfoo"), {i, v -> v.name}))
   call assert_equal(['BFoo', 'FFoo'], map(taglist("Foo", "Xbar"), {i, v -> v.name}))
 
+  let kind = taglist("Kindly")
+  call assert_equal(1, len(kind))
+  call assert_equal('v', kind[0]['kind'])
+  call assert_equal('3', kind[0]['cmd'])
+  call assert_equal(1, kind[0]['static'])
+  call assert_equal('Xbar', kind[0]['filename'])
+
+  let cmd = taglist("Command")
+  call assert_equal(1, len(cmd))
+  call assert_equal('d', cmd[0]['kind'])
+  call assert_equal('call cursor(3, 4)', cmd[0]['cmd'])
+
   call delete('Xtags')
   set tags&
   bwipe