Square brackets around source field options are now mandatory.

pgloader.1

@@ -775,7 +775,7 @@ How many bytes to read from the \fIstart\fR position to read that field\'s value
 .IP "" 0
 .
 .IP
-Those optional parameters can enclosed in square brackets and comma\-separated:
+Those optional parameters must be enclosed in square brackets and comma\-separated:
 .
 .IP "\(bu" 4
 \fIterminated by\fR

pgloader.1.md

@@ -668,7 +668,7 @@ The `fixed` format command accepts the following clauses and options:
 	    How many bytes to read from the *start* position to read that
 	    field's value. Same format as *start*.
 
-    Those optional parameters can enclosed in square brackets and
+    Those optional parameters must be enclosed in square brackets and
 	comma-separated:
 
 	  - *terminated by*

src/parsers/parser.lisp

@@ -1743,7 +1743,7 @@ load database
       (declare (ignore open close))
       (alexandria:alist-plist `(,opt1 ,@opts)))))
 
-(defrule csv-field-options (? (or csv-field-option csv-field-option-list)))
+(defrule csv-field-options (? csv-field-option-list))
 
 (defrule csv-raw-field-name (and (or #\_ (alpha-char-p character))
                                   (* (or (alpha-char-p character)

test/archive.load

@@ -19,13 +19,13 @@ LOAD ARCHIVE
              (
                 locId,
                 country,
-                region     null if blanks,
-                city       null if blanks,
-                postalCode null if blanks,
+                region     [ null if blanks ],
+                city       [ null if blanks ],
+                postalCode [ null if blanks ],
                 latitude,
                 longitude,
-                metroCode  null if blanks,
-                areaCode   null if blanks
+                metroCode  [ null if blanks ],
+                areaCode   [ null if blanks ]
              )
         INTO postgresql:///ip4r?geolite.location
              (

test/csv-nulls.load

@@ -1,5 +1,5 @@
 LOAD CSV
-     FROM INLINE (id, number null if '\N', data)
+     FROM INLINE (id, number [null if '\N'], data)
      INTO postgresql:///pgloader?nullif
 
      BEFORE LOAD DO