/* PSPP - a program for statistical analysis.
- Copyright (C) 2006, 2010, 2011 Free Software Foundation, Inc.
+ Copyright (C) 2006, 2010, 2011, 2012 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
#include "libpspp/pool.h"
#include "libpspp/str.h"
+#include "gl/c-strcase.h"
#include "gl/xalloc.h"
#include "gl/xsize.h"
PRS_TYPE_NEW_REC /* Next record. */
};
-static bool fixed_parse_columns (struct lexer *, struct pool *, size_t var_cnt, bool for_input,
- struct fmt_spec **, size_t *);
-static bool fixed_parse_fortran (struct lexer *l, struct pool *, bool for_input,
+static bool fixed_parse_columns (struct lexer *, struct pool *, size_t var_cnt,
+ enum fmt_use, struct fmt_spec **, size_t *);
+static bool fixed_parse_fortran (struct lexer *l, struct pool *, enum fmt_use,
struct fmt_spec **, size_t *);
/* Parses Fortran-like or column-based specifications for placing
formats like those parsed by DATA LIST or PRINT. Returns true
only if successful.
+ The formats parsed are either input or output formats, according
+ to USE.
+
+ If USE is FMT_FOR_INPUT, then T, X, and / "formats" are parsed,
+ in addition to regular formats. If USE is FMT_FOR_OUTPUT, then
+ T and X "formats" are parsed but not /.
+
If successful, formats for VAR_CNT variables are stored in
*FORMATS, and the number of formats required is stored in
*FORMAT_CNT. *FORMAT_CNT may be greater than VAR_CNT because
Uses POOL for allocation. When the caller is finished
interpreting *FORMATS, POOL may be destroyed. */
bool
-parse_var_placements (struct lexer *lexer, struct pool *pool, size_t var_cnt, bool for_input,
+parse_var_placements (struct lexer *lexer, struct pool *pool, size_t var_cnt,
+ enum fmt_use use,
struct fmt_spec **formats, size_t *format_cnt)
{
assert (var_cnt > 0);
if (lex_is_number (lexer))
- return fixed_parse_columns (lexer, pool, var_cnt, for_input, formats, format_cnt);
+ return fixed_parse_columns (lexer, pool, var_cnt, use,
+ formats, format_cnt);
else if (lex_match (lexer, T_LPAREN))
{
size_t assignment_cnt;
size_t i;
- if (!fixed_parse_fortran (lexer, pool, for_input, formats, format_cnt))
+ if (!fixed_parse_fortran (lexer, pool, use, formats, format_cnt))
return false;
assignment_cnt = 0;
/* Implements parse_var_placements for column-based formats. */
static bool
-fixed_parse_columns (struct lexer *lexer, struct pool *pool, size_t var_cnt, bool for_input,
+fixed_parse_columns (struct lexer *lexer, struct pool *pool, size_t var_cnt,
+ enum fmt_use use,
struct fmt_spec **formats, size_t *format_cnt)
{
struct fmt_spec format;
format.type = FMT_F;
format.d = 0;
}
- if (!fmt_check (&format, for_input))
+ if (!fmt_check (&format, use))
return false;
*formats = pool_nalloc (pool, var_cnt + 1, sizeof **formats);
/* Implements parse_var_placements for Fortran-like formats. */
static bool
-fixed_parse_fortran (struct lexer *lexer, struct pool *pool, bool for_input,
+fixed_parse_fortran (struct lexer *lexer, struct pool *pool, enum fmt_use use,
struct fmt_spec **formats, size_t *format_cnt)
{
size_t formats_allocated = 0;
if (lex_match (lexer, T_LPAREN))
{
/* Call ourselves recursively to handle parentheses. */
- if (!fixed_parse_fortran (lexer, pool, for_input,
+ if (!fixed_parse_fortran (lexer, pool, use,
&new_formats, &new_format_cnt))
return false;
}
{
new_formats = &f;
new_format_cnt = 1;
- if (lex_match (lexer, T_SLASH))
+ if (use == FMT_FOR_INPUT && lex_match (lexer, T_SLASH))
f.type = PRS_TYPE_NEW_REC;
else
{
if (!parse_abstract_format_specifier (lexer, type, &f.w, &f.d))
return false;
- if (!strcasecmp (type, "T"))
+ if (!c_strcasecmp (type, "T"))
f.type = PRS_TYPE_T;
- else if (!strcasecmp (type, "X"))
+ else if (!c_strcasecmp (type, "X"))
{
f.type = PRS_TYPE_X;
f.w = count;
msg (SE, _("Unknown format type `%s'."), type);
return false;
}
- if (!fmt_check (&f, for_input))
+ if (!fmt_check (&f, use))
return false;
}
}
execute_placement_format (const struct fmt_spec *format,
int *record, int *column)
{
- switch (format->type)
+ switch ((int) format->type)
{
case PRS_TYPE_X:
*column += format->w;
}
}
-/* 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 (int value, int base, int *column)
+bool
+parse_column__ (int value, int base, int *column)
{
assert (base == 0 || base == 1);
*column = value - base + 1;
return true;
}
+/* 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.
+
+ 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 (struct lexer *lexer, int base, int *column)
+{
+ assert (base == 0 || base == 1);
+
+ if (!lex_force_int (lexer)
+ || !parse_column__ (lex_integer (lexer), base, column))
+ return false;
+
+ lex_get (lexer);
+ return true;
+}
+
/* Parse a column or a range of columns, specified as a single
integer or two integers delimited by a dash. Stores the range
in *FIRST_COLUMN and *LAST_COLUMN. (If only a single integer
{
/* First column. */
if (!lex_force_int (lexer)
- || !parse_column (lex_integer (lexer), base, first_column))
+ || !parse_column__ (lex_integer (lexer), base, first_column))
return false;
lex_get (lexer);
/* Last column. */
if (lex_is_integer (lexer) && lex_integer (lexer) < 0)
{
- if (!parse_column (-lex_integer (lexer), base, last_column))
+ if (!parse_column__ (-lex_integer (lexer), base, last_column))
return false;
lex_get (lexer);