GET DATA /TYPE=TXT: Remove obsolete IMPORTCASES subcommand.

[pspp] / doc / files.texi

diff --git a/doc/files.texi b/doc/files.texi
index eb5a369e784b7aa695974c027f3dc300229c170b..617f4faadb00513d656202e283358417fe69dc45 100644 (file)
--- a/doc/files.texi
+++ b/doc/files.texi
@@ -370,7 +370,7 @@ GET DATA /TYPE=TXT
         [ENCODING='@var{encoding}']
         [/ARRANGEMENT=@{DELIMITED,FIXED@}]
         [/FIRSTCASE=@{@var{first_case}@}]
-        [/IMPORTCASE=@{ALL,FIRST @var{max_cases},PERCENT @var{percent}@}]
+        [/IMPORTCASES=...]
         @dots{}additional subcommands depending on ARRANGEMENT@dots{}
 @end display
 
@@ -398,19 +398,13 @@ line.  To skip lines at the beginning of an input file, set @subcmd{FIRSTCASE}
 to the number of the first line to read: 2 to skip the first line, 3
 to skip the first two lines, and so on.
 
-@subcmd{IMPORTCASE} can be used to limit the number of cases read from the
-input file.  With the default setting, ALL, all cases in the file are
-read.  Specify FIRST @var{max_cases} to read at most @var{max_cases} cases
-from the file.  Use @subcmd{PERCENT @var{percent}} to read only @var{percent}
-percent, approximately, of the cases contained in the file.  (The
-percentage is approximate, because there is no way to accurately count
-the number of cases in the file without reading the entire file.  The
-number of cases in some kinds of unusual files cannot be estimated;
-@pspp{} will read all cases in such files.)
+@subcmd{IMPORTCASES} is ignored, for compatibility.  Use @cmd{N OF
+CASES} to limit the number of cases read from a file (@pxref{N OF
+CASES}), or @cmd{SAMPLE} to obtain a random sample of cases
+(@pxref{SAMPLE}).
 
-@subcmd{FIRSTCASE} and @subcmd{IMPORTCASE} may be used with delimited and fixed-format
-data.  The remaining subcommands, which apply only to one of the two  file
-arrangements, are described below.
+The remaining subcommands apply only to one of the two file
+arrangements, described below.
 
 @menu
 * GET DATA /TYPE=TXT /ARRANGEMENT=DELIMITED::
@@ -428,7 +422,7 @@ GET DATA /TYPE=TXT
         [/IMPORTCASE=@{ALL,FIRST @var{max_cases},PERCENT @var{percent}@}]
 
         /DELIMITERS="@var{delimiters}"
-        [/QUALIFIER="@var{quotes}" [/ESCAPE]]
+        [/QUALIFIER="@var{quotes}"
         [/DELCASE=@{LINE,VARIABLES @var{n_variables}@}]
         /VARIABLES=@var{del_var1} [@var{del_var2}]@dots{}
 where each @var{del_var} takes the form:
@@ -467,15 +461,10 @@ matching quote.  Intervening delimiters become part of the field,
 instead of terminating it.  The ability to specify more than one quote
 character is a @pspp{} extension.
 
-By default, a character specified on @subcmd{QUALIFIER} cannot itself be
-embedded within a field that it quotes, because the quote character
-always terminates the quoted field.  With ESCAPE, however, a doubled
-quote character within a quoted field inserts a single instance of the
-quote into the field.  For example, if @samp{'} is specified on
-@subcmd{QUALIFIER}, then without ESCAPE @code{'a''b'} specifies a pair of
-fields that contain @samp{a} and @samp{b}, but with ESCAPE it
-specifies a single field that contains @samp{a'b}.  ESCAPE is a @pspp{}
-extension.
+The character specified on @subcmd{QUALIFIER} can be embedded within a
+field that it quotes by doubling the qualifier.  For example, if
+@samp{'} is specified on @subcmd{QUALIFIER}, then @code{'a''b'}
+specifies a field that contains @samp{a'b}.
 
 The @subcmd{DELCASE} subcommand controls how data may be broken across lines in
 the data file.  With LINE, the default setting, each line must contain