look: use WORDLIST environment variable to find word list

The WORDLIST is the same hunspell(1) and ispell(1) uses to achieve the same. Apparently aspell(1) does not work with files like traditional dict lists. Reference: https://github.com/hunspell/hunspell/blob/master/man/hunspell.1#L388 Reference: http://www.skrenta.com/rt/man/ispell.1.html Reference: http://aspell.net/man-html/Creating-an-Individual-Word-List.html#Creating-an-Individual-Word-List Signed-off-by: Sami Kerola <[email protected]>
openfans-community-offical · Aug 21, 2017 · a653878 · a653878
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diff --git a/misc-utils/look.1 b/misc-utils/look.1
@@ -101,6 +101,11 @@ sort -d /etc/passwd -o /tmp/look.dict
 look -t: root:foobar /tmp/look.dict
 .nf
 .RE
+.SH ENVIRONMENT
+.TP
+.B WORDLIST
+Path to a dictionary file.  The environment variable has greater priority
+than the dictionary path defined in FILES segment.
 .SH FILES
 .IP "\fB/usr/share/dict/words\fR" 4
 the dictionary

diff --git a/misc-utils/look.c b/misc-utils/look.c
@@ -104,7 +104,11 @@ main(int argc, char *argv[])
 
 	setlocale(LC_ALL, "");
 
-	file = _PATH_WORDS;
+	if ((file = getenv("WORDLIST")) && !access(file, R_OK))
+		/* use the WORDLIST */;
+	else
+		file = _PATH_WORDS;
+
 	termchar = '\0';
 	string = NULL;		/* just for gcc */