Re: printing words without newlines?

On Sun, 12 May 2024 18:22:05 -0000 (UTC), jeojet wrote:

>> <snip>
>>I'm learning more AWK basics and wrote function to read file, sort,
>>print.  I use GNU AWK (gawk) and its sort but printing is harder to get
>>working than anything... separate lines work, but when I use printf() or
>>set ORS then use print (for words one line) all awk outputs (on FreeBSD
>>UNIX 14 and Slackware GNU/Linux 15) is a space (and not even newline
>>before shell prompt)... is this normal (and I made mistake?) or am I
>>approaching it wrong?  I recall BASIC prints new lines, but as I learned
>>basic C and some derivatives, I'm used to newlines only being
>>specified...
>>------------------------------------------------------------------------
>># print_file_words.awk # pass filename to function BEGIN {
>>print_file_words("data.txt"); }
>>
>># read two-column array from file and sort lines and print function
>>print_file_words(file) {
>># set record separator then use print # ORS=" "
>>  while(getline<file) arr[$1]=$0 PROCINFO["sorted_in"]="@ind_num_asc"
>>  for(i in arr)
>>  {
>>    split(arr[i],arr2)
>>    # output all words or on one line with ORS print arr2[2]
>>    # output all words on one line without needing ORS #printf("%s
>>    ",arr2[2])
>>  }
>>}
>> <snip>
> 
> I think you forgot that arr2 is now an array => you have to iterate over
> it as well.  There were also a few other coding errors, ie. not closing
> the data.txt file; not declaring local vars in print_file_words:
> 
> --
> $ cat test.awk BEGIN { print_file_words("data.txt") }
> 
> function print_file_words(file,  i,j) {
>   ORS = " " PROCINFO["sorted_in"]="@ind_num_asc"
>   while (getline <file >0)
>     arr[$1] = $0
>   close (file)
> 
>   for(i in arr) {
>     split(arr[i],arr2)
> 		for (j in arr2)
>       print arr2[j]
>   }
>   ORS = "\n"
>   print ""
> }
> 
> $ gawk -f test.awk all are base belong to us your

My original works after rebooting after discussion in main thread (without 
'Re') but thanks for instruction to close file, though I don't know you 
need to pass in i--not used outside.  It's odd iterating over arr2 even 
still prints all words (wrong order) because the way I used arr2 it only 
ever had one number and one word--its point was to split out & get word, 
then for the next i, it's split again onto arr2 which is erased/updated.