Fix smartquotes adjacent to code block

close https://github.com/markdown-it/markdown-it/issues/677

lib/rules_core/smartquotes.js

@@ -60,7 +60,7 @@ function process_inlines(tokens, state) {
       } else {
         for (j = i - 1; j >= 0; j--) {
           if (tokens[j].type === 'softbreak' || tokens[j].type === 'hardbreak') break; // lastChar defaults to 0x20
-          if (tokens[j].type !== 'text') continue;
+          if (!tokens[j].content) continue; // should skip all tokens except 'text', 'html_inline' or 'code_inline'
 
           lastChar = tokens[j].content.charCodeAt(tokens[j].content.length - 1);
           break;
@@ -77,7 +77,7 @@ function process_inlines(tokens, state) {
       } else {
         for (j = i + 1; j < tokens.length; j++) {
           if (tokens[j].type === 'softbreak' || tokens[j].type === 'hardbreak') break; // nextChar defaults to 0x20
-          if (tokens[j].type !== 'text') continue;
+          if (!tokens[j].content) continue; // should skip all tokens except 'text', 'html_inline' or 'code_inline'
 
           nextChar = tokens[j].content.charCodeAt(0);
           break;

test/fixtures/markdown-it/smartquotes.txt

@@ -144,3 +144,23 @@ The dog---"'man's' best friend"
 .
 <p>The dog—“‘man’s’ best friend”</p>
 .
+
+Should parse quotes adjacent to code block, #677:
+.
+"test `code`"
+
+"`code` test"
+.
+<p>“test <code>code</code>”</p>
+<p>“<code>code</code> test”</p>
+.
+
+Should parse quotes adjacent to inline html, #677:
+.
+"test <br>"
+
+"<br> test"
+.
+<p>“test <br>”</p>
+<p>“<br> test”</p>
+.