diff options
| -rw-r--r-- | library/word.tcl | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/library/word.tcl b/library/word.tcl index 3e4bc3a..4e57479 100644 --- a/library/word.tcl +++ b/library/word.tcl @@ -146,7 +146,9 @@ proc tcl_startOfNextWord {str start} { proc tcl_startOfPreviousWord {str start} { variable ::tcl::WordBreakRE set word {-1 -1} - regexp -indices -- $WordBreakRE(previous) [string range $str 0 $start-1] \ - result word + if {$start > 0} { + regexp -indices -- $WordBreakRE(previous) [string range $str 0 $start-1] \ + result word + } return [lindex $word 0] } |