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[Pspp-cvs] pspp/src/language/data-io ChangeLog placement-p...
From: |
Ben Pfaff |
Subject: |
[Pspp-cvs] pspp/src/language/data-io ChangeLog placement-p... |
Date: |
Wed, 05 Dec 2007 06:24:46 +0000 |
CVSROOT: /cvsroot/pspp
Module name: pspp
Changes by: Ben Pfaff <blp> 07/12/05 06:24:46
Modified files:
src/language/data-io: ChangeLog placement-parser.c
placement-parser.h print.c
Log message:
Allow parsing 0-based column ranges.
(parse_column): New function.
(parse_column_range): Add `base' argument. Update all callers.
CVSWeb URLs:
http://cvs.savannah.gnu.org/viewcvs/pspp/src/language/data-io/ChangeLog?cvsroot=pspp&r1=1.53&r2=1.54
http://cvs.savannah.gnu.org/viewcvs/pspp/src/language/data-io/placement-parser.c?cvsroot=pspp&r1=1.8&r2=1.9
http://cvs.savannah.gnu.org/viewcvs/pspp/src/language/data-io/placement-parser.h?cvsroot=pspp&r1=1.5&r2=1.6
http://cvs.savannah.gnu.org/viewcvs/pspp/src/language/data-io/print.c?cvsroot=pspp&r1=1.31&r2=1.32
Patches:
Index: ChangeLog
===================================================================
RCS file: /cvsroot/pspp/pspp/src/language/data-io/ChangeLog,v
retrieving revision 1.53
retrieving revision 1.54
diff -u -b -r1.53 -r1.54
--- ChangeLog 5 Dec 2007 06:22:46 -0000 1.53
+++ ChangeLog 5 Dec 2007 06:24:46 -0000 1.54
@@ -1,5 +1,10 @@
2007-12-04 Ben Pfaff <address@hidden>
+ * placement-parser.c (parse_column): New function.
+ (parse_column_range): Add `base' argument. Update all callers.
+
+2007-12-04 Ben Pfaff <address@hidden>
+
Make GET DATA a separate command, instead of something invoked
indirectly from GET.
Index: placement-parser.c
===================================================================
RCS file: /cvsroot/pspp/pspp/src/language/data-io/placement-parser.c,v
retrieving revision 1.8
retrieving revision 1.9
diff -u -b -r1.8 -r1.9
--- placement-parser.c 13 Oct 2007 04:35:26 -0000 1.8
+++ placement-parser.c 5 Dec 2007 06:24:46 -0000 1.9
@@ -107,7 +107,7 @@
int fc, lc;
size_t i;
- if ( !parse_column_range (lexer, &fc, &lc, NULL) )
+ if ( !parse_column_range (lexer, 1, &fc, &lc, NULL) )
return false;
/* Divide columns evenly. */
@@ -287,42 +287,57 @@
}
}
+/* Parses a BASE-based column using LEXER. Returns true and
+ stores a 1-based column number into *COLUMN if successful,
+ otherwise emits an error message and returns false. */
+static bool
+parse_column (struct lexer *lexer, int base, int *column)
+{
+ assert (base == 0 || base == 1);
+ if (!lex_force_int (lexer))
+ return false;
+ *column = lex_integer (lexer) - base + 1;
+ if (*column < 1)
+ {
+ if (base == 1)
+ msg (SE, _("Column positions for fields must be positive."));
+ else
+ msg (SE, _("Column positions for fields must not be negative."));
+ return false;
+ }
+ lex_get (lexer);
+ return true;
+}
+
/* Parse a column or a range of columns, specified as a single
- integer or two integer delimited by a dash. Stores the range
+ integer or two integers delimited by a dash. Stores the range
in *FIRST_COLUMN and *LAST_COLUMN. (If only a single integer
is given, it is stored in both.) If RANGE_SPECIFIED is
non-null, then *RANGE_SPECIFIED is set to true if the syntax
contained a dash, false otherwise. Returns true if
successful, false if the syntax was invalid or the values
- specified did not make sense. */
+ specified did not make sense.
+
+ If BASE is 0, zero-based column numbers are parsed; if BASE is
+ 1, 1-based column numbers are parsed. Regardless of BASE, the
+ values stored in *FIRST_COLUMN and *LAST_COLUMN are
+ 1-based. */
bool
-parse_column_range (struct lexer *lexer, int *first_column, int *last_column,
+parse_column_range (struct lexer *lexer, int base,
+ int *first_column, int *last_column,
bool *range_specified)
{
/* First column. */
- if (!lex_force_int (lexer))
+ if (!parse_column (lexer, base, first_column))
return false;
- *first_column = lex_integer (lexer);
- if (*first_column < 1)
- {
- msg (SE, _("Column positions for fields must be positive."));
- return false;
- }
- lex_get (lexer);
/* Last column. */
lex_negative_to_dash (lexer);
if (lex_match (lexer, '-'))
{
- if (!lex_force_int (lexer))
- return false;
- *last_column = lex_integer (lexer);
- if (*last_column < 1)
- {
- msg (SE, _("Column positions for fields must be positive."));
+ if (!parse_column (lexer, base, last_column))
return false;
- }
- else if (*last_column < *first_column)
+ if (*last_column < *first_column)
{
msg (SE, _("The ending column for a field must be "
"greater than the starting column."));
@@ -331,7 +346,6 @@
if (range_specified)
*range_specified = true;
- lex_get (lexer);
}
else
{
Index: placement-parser.h
===================================================================
RCS file: /cvsroot/pspp/pspp/src/language/data-io/placement-parser.h,v
retrieving revision 1.5
retrieving revision 1.6
diff -u -b -r1.5 -r1.6
--- placement-parser.h 7 Jul 2007 06:14:13 -0000 1.5
+++ placement-parser.h 5 Dec 2007 06:24:46 -0000 1.6
@@ -29,7 +29,8 @@
struct fmt_spec **, size_t *format_cnt);
bool execute_placement_format (const struct fmt_spec *,
int *record, int *column);
-bool parse_column_range (struct lexer *, int *first_column, int *last_column,
+bool parse_column_range (struct lexer *, int base,
+ int *first_column, int *last_column,
bool *range_specified);
#endif /* language/data-io/placement-parser.h */
Index: print.c
===================================================================
RCS file: /cvsroot/pspp/pspp/src/language/data-io/print.c,v
retrieving revision 1.31
retrieving revision 1.32
diff -u -b -r1.31 -r1.32
--- print.c 9 Nov 2007 03:06:29 -0000 1.31
+++ print.c 5 Dec 2007 06:24:46 -0000 1.32
@@ -288,7 +288,8 @@
int first_column, last_column;
bool range_specified;
- if (!parse_column_range (lexer, &first_column, &last_column,
&range_specified))
+ if (!parse_column_range (lexer, 1,
+ &first_column, &last_column, &range_specified))
return false;
spec->first_column = first_column;
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