Fix utterly-bogus code for computing row heights. Per crashes on
authorTom Lane <tgl@sss.pgh.pa.us>
Sat, 17 May 2008 17:52:14 +0000 (17:52 +0000)
committerTom Lane <tgl@sss.pgh.pa.us>
Sat, 17 May 2008 17:52:14 +0000 (17:52 +0000)
spoonbill, though one wonders why it didn't misbehave everywhere.
In passing remove some unnecessary modulo calculations.

src/bin/psql/print.c

index 69f657b5174943d38edb8859f22545dbd5d1f9b1..e7f0b89f1e73b9e8e4dad135c3f09468c593abf5 100644 (file)
@@ -3,7 +3,7 @@
  *
  * Copyright (c) 2000-2008, PostgreSQL Global Development Group
  *
- * $PostgreSQL: pgsql/src/bin/psql/print.c,v 1.103 2008/05/16 18:35:38 tgl Exp $
+ * $PostgreSQL: pgsql/src/bin/psql/print.c,v 1.104 2008/05/17 17:52:14 tgl Exp $
  */
 #include "postgres_fe.h"
 
@@ -522,7 +522,7 @@ print_aligned_text(const printTableContent *cont, FILE *fout)
        int rows = cell_count / col_count;
        
        for (i = 0; i < col_count; i++)
-           width_average[i % col_count] /= rows;
+           width_average[i] /= rows;
    }
 
    /* adjust the total display width based on border style */
@@ -645,7 +645,7 @@ print_aligned_text(const printTableContent *cont, FILE *fout)
    if (!is_pager)
    {
        /* scan all cells, find maximum width, compute cell_count */
-       for (i = 0, ptr = cont->cells; *ptr; ptr++, i++, cell_count++)
+       for (i = 0, ptr = cont->cells; *ptr; ptr++, cell_count++)
        {
            int         width,
                        nl_lines,
@@ -653,7 +653,7 @@ print_aligned_text(const printTableContent *cont, FILE *fout)
    
            pg_wcssize((unsigned char *) *ptr, strlen(*ptr), encoding,
                       &width, &nl_lines, &bytes_required);
-           if (opt_numeric_locale && cont->align[i % col_count] == 'r')
+           if (opt_numeric_locale && cont->align[i] == 'r')
                width += additional_numeric_locale_len(*ptr);
    
            /*
@@ -661,14 +661,20 @@ print_aligned_text(const printTableContent *cont, FILE *fout)
             *  it to display across multiple lines.  We check
             *  for both cases below.
             */
-           if (width > 0 && width_wrap[i] &&
-               (width-1) / width_wrap[i] + nl_lines > extra_row_output_lines)
-               extra_row_output_lines = (width-1) / width_wrap[i] + nl_lines;
+           if (width > 0 && width_wrap[i])
+           {
+               unsigned int extra_lines;
+
+               extra_lines = (width-1) / width_wrap[i] + nl_lines;
+               if (extra_lines > extra_row_output_lines)
+                   extra_row_output_lines = extra_lines;
+           }
 
-           /* If last column, add tallest column height */
-           if (i % col_count == col_count - 1)
+           /* i is the current column number: increment with wrap */
+           if (++i >= col_count)
            {
-               /* Add height of tallest row */
+               i = 0;
+               /* At last column of each row, add tallest column height */
                extra_output_lines += extra_row_output_lines;
                extra_row_output_lines = 0;
            }
@@ -780,7 +786,7 @@ print_aligned_text(const printTableContent *cont, FILE *fout)
                         col_lineptrs[j], max_nl_lines[j]);
            curr_nl_line[j] = 0;
 
-           if (opt_numeric_locale && cont->aligns[j % col_count] == 'r')
+           if (opt_numeric_locale && cont->aligns[j] == 'r')
            {
                char       *my_cell;