Get `gn gen` to succeed on Windows

third_party/sqlite/src/test/make-where7.tcl

+#!/usr/bin/tclsh
+#
+# Run this script to generate randomized test cases for the where7.test
+# script.  The output will need to be manually copied and pasted into
+# the where7.test script.
+#
+puts "do_test where7-2.1 \173"
+puts "  db eval \173"
+puts "    CREATE TABLE t2(a INTEGER PRIMARY KEY,b,c,d,e,f,g);"
+set NA 100
+for {set a 1} {$a<=$NA} {incr a} {
+  set b [expr {$a*11}]
+  set div3 [expr {int(($a+2)/3)}]
+  set c [expr {$div3*1001}]
+  set d [expr {$a*1.001}]
+  set e [expr {$div3*100.1}]
+  set x [expr {$a%26}]
+  set f [string range {abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz} \
+           $x [expr {$x+8}]]
+  set div5 [expr {int(($a+7)/5)}]
+  set x [expr {$div5%26}]
+  set g [string range {zyxwvutsrqponmlkjihgfedcbazyxwvutsrqponmlkjihgfedcba} \
+           $x [expr {$x+6}]]
+  puts "    INSERT INTO t2 VALUES($a,$b,$c,$d,$e,'$f','$g');"
+  lappend fidx($f) $a
+  lappend gidx($g) $a
+  set gof($a) $g
+  set fof($a) $f
+
+  set expr "a=$a"
+  set term($expr) $a
+  set expr "((a BETWEEN [expr {$a-1}] AND [expr {$a+1}]) AND a!=$a)"
+  set x {}
+  if {$a>1} {set x [expr {$a-1}]}
+  if {$a<$NA} {lappend x [expr {$a+1}]}
+  set term($expr) $x
+  set expr "b=$b"
+  set term($expr) $a
+  set expr "b=[expr {$a*11+3}]"
+  set term($expr) {}
+  set expr "c=$c"
+  lappend term($expr) $a
+  set expr "(d>=$a.0 AND d<[expr {$a+1.0}] AND d NOT NULL)"
+  lappend term($expr) $a
+  set expr "f='$f'"
+  lappend term($expr) $a
+  set expr \
+     "(f GLOB '?[string range $f 1 4]*' AND f GLOB '[string range $f 0 3]*')"
+  lappend term($expr) $a
+  set expr "(g='$g' AND f GLOB '[string range $f 0 4]*')"
+  lappend term($expr) $a
+}
+puts "    CREATE INDEX t2b ON t2(b);"
+puts "    CREATE INDEX t2c ON t2(c);"
+puts "    CREATE INDEX t2d ON t2(d);"
+puts "    CREATE INDEX t2e ON t2(e);"
+puts "    CREATE INDEX t2f ON t2(f);"
+puts "    CREATE INDEX t2g ON t2(g);"
+puts "    CREATE TABLE t3(a INTEGER PRIMARY KEY,b,c,d,e,f,g);"
+puts "    INSERT INTO t3 SELECT * FROM t2;"
+puts "    CREATE INDEX t3b ON t3(b,c);"
+puts "    CREATE INDEX t3c ON t3(c,e);"
+puts "    CREATE INDEX t3d ON t3(d,g);"
+puts "    CREATE INDEX t3e ON t3(e,f,g);"
+puts "    CREATE INDEX t3f ON t3(f,b,d,c);"
+puts "    CREATE INDEX t3g ON t3(g,f);"
+
+puts "  \175"
+puts "\175 {}"
+
+set term(b<0) {}
+set term(1000000<b) {}
+set term(c<=10) {}
+set term(c>=[expr {int(($NA+2)/3)*1001+1}]) {}
+set term(d<0.0) {}
+set term(d>1e10) {}
+set expr {e IS NULL}
+set term($expr) {}
+set expr {f IS NULL}
+set term($expr) {}
+set expr {g IS NULL}
+set term($expr) {}
+
+set NT 1000
+set termlist [array names term]
+set nterm [llength $termlist]
+for {set i 2} {$i<=$NT+1} {incr i} {
+  set n [expr {int(rand()*10)+2}]
+  set w {}
+  unset -nocomplain r
+  for {set j 0} {$j<$n} {incr j} {
+    set k [expr {int(rand()*$nterm)}]
+    set t [lindex $termlist $k]
+    lappend w $t
+    foreach a $term($t) {
+      set r($a) 1
+    }
+  }
+  if {[info exists seen($w)]} {
+    incr i -1
+    continue
+  }
+  set seen($w) 1
+  set result [lsort -int [array names r]]
+  puts "do_test where7-2.$i.1 \173"
+  puts "  count_steps_sort \173"
+  puts "     SELECT a FROM t2"
+  set wc [join $w "\n         OR "]
+  puts "      WHERE $wc"
+  puts "  \175"
+  puts "\175 {$result scan 0 sort 0}"
+  puts "do_test where7-2.$i.2 \173"
+  puts "  count_steps_sort \173"
+  puts "     SELECT a FROM t3"
+  set wc [join $w "\n         OR "]
+  puts "      WHERE $wc"
+  puts "  \175"
+  puts "\175 {$result scan 0 sort 0}"
+}
+puts "finish_test"