Handle embedded newlines in print_table() wireservice#749

Author: sethk

agate/table/print_table.py

@@ -68,6 +68,7 @@ def print_table(self, max_rows=20, max_columns=6, output=sys.stdout, max_column_
     widths = [len(n) for n in column_names]
     number_formatters = []
     formatted_data = []
+    multi_line_rows = False
 
     # Determine correct number of decimal places for each Number column
     for i, c in enumerate(self._columns):
@@ -89,7 +90,7 @@ def print_table(self, max_rows=20, max_columns=6, output=sys.stdout, max_column_
         if i >= max_rows:
             break
 
-        formatted_row = []
+        formatted_row = [[]]
 
         for j, v in enumerate(row):
             if j >= max_columns:
@@ -104,14 +105,33 @@ def print_table(self, max_rows=20, max_columns=6, output=sys.stdout, max_column_
                 )
             else:
                 v = six.text_type(v)
+                vs = v.splitlines()
+                if len(vs) > 1:
+                    multi_line_rows = True
+
+                    v = vs[0]
+                    for k, xv in enumerate(vs):
+                        if k == 0:
+                            v = xv
+                            continue
+
+                        if max_column_width is not None and len(xv) > max_column_width:
+                            xv = '%s...' % xv[:max_column_width - 3]
+
+                        if len(xv) > widths[j]:
+                            widths[j] = len(xv)
+
+                        if k == len(formatted_row):
+                            formatted_row.append([''] * max_columns)
+                        formatted_row[k][j] = xv
 
             if max_column_width is not None and len(v) > max_column_width:
                 v = '%s...' % v[:max_column_width - 3]
 
             if len(v) > widths[j]:
                 widths[j] = len(v)
 
-            formatted_row.append(v)
+            formatted_row[0].append(v)
 
             if j >= max_columns:
                 break
@@ -140,7 +160,6 @@ def write_row(formatted_row):
 
         write('%s%s%s' % (v_line, text, v_line))
 
-    # Dashes span each width with '+' character at intersection of
     # horizontal and vertical dividers.
     divider = '%(v_line)s %(columns)s %(v_line)s' % {
         'h_line': h_line,
@@ -154,7 +173,10 @@ def write_row(formatted_row):
 
     # Rows
     for formatted_row in formatted_data:
-        write_row(formatted_row)
+        for row_line in formatted_row:
+            write_row(row_line)
+        if multi_line_rows:
+            write(divider)
 
     # Row indicating data was truncated
     if rows_truncated: