fix current_col and force a newline every 32K (support options.max_line_len)

1 files changed, 10 insertions, 2 deletions

diff --git a/lib/output.js b/lib/output.js
index ae4a57c6..f83a5c89 100644
--- a/lib/output.js
+++ b/lib/output.js
@@ -51,6 +51,7 @@ function OutputStream(options) {
         ascii_only    : false,
         inline_script : false,
         width         : 80,
+        max_line_len  : 32000,
         ie_proof      : true,
         beautify      : true
     });
@@ -119,6 +120,11 @@ function OutputStream(options) {
         return last.charAt(last.length - 1);
     };
 
+    function maybe_newline() {
+        if (options.max_line_len && current_col > options.max_line_len)
+            print("\n");
+    };
+
     function print(str) {
         str = String(str);
         var ch = str.charAt(0);
@@ -131,6 +137,7 @@ function OutputStream(options) {
                     might_need_space = false;
             }
             might_need_semicolon = false;
+            maybe_newline();
         }
         if (might_need_space) {
             if ((is_identifier_char(last_char())
@@ -143,13 +150,14 @@ function OutputStream(options) {
                 current_pos++;
             }
             might_need_space = false;
+            maybe_newline();
         }
         var a = str.split(/\r?\n/), n = a.length;
         current_line += n;
         if (n == 1) {
-            current_col = a[n - 1].length;
-        } else {
             current_col += a[n - 1].length;
+        } else {
+            current_col = a[n - 1].length;
         }
         current_pos += str.length;
         last = str;