Re: RFC: wc --max-line-length vs. TABs [Re: Bug in wc

[Bo Borgerson]

Jim Meyering wrote:
> 
> I'm tempted to make the change, but it seems too drastic, after 11 years.
> Do any of you rely on the current TAB-counting behavior of GNU wc?
> 

Hi,

It looks like TAB characters aren't alone in being counted by printed
width rather than count:

$ echo '好' | wc -L
2

Does it make sense to change the behavior for TAB, but not for "wide"
characters?

Bo

diff --git a/src/wc.c b/src/wc.c
index 0bb1929..b3f1ab2 100644
--- a/src/wc.c
+++ b/src/wc.c
@@ -378,7 +378,7 @@ wc (int fd, char const *file_x, struct fstatus *fstatus)
                    {
                      int width = wcwidth (wide_char);
                      if (width > 0)
-                       linepos += width;
+                       linepos ++;
                      if (iswspace (wide_char))
                        goto mb_word_separator;
                      in_word = true;