/* PSPP - a program for statistical analysis.
- Copyright (C) 1997-9, 2000, 2006 Free Software Foundation, Inc.
+ Copyright (C) 1997-9, 2000, 2006, 2009, 2010 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 <ctype.h>
#include <errno.h>
+#include <limits.h>
#include <math.h>
#include <stdarg.h>
+#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
-#include <stdbool.h>
#include "calendar.h"
+#include "dictionary.h"
+#include "format.h"
#include "identifier.h"
+#include "libpspp/assertion.h"
+#include "libpspp/compiler.h"
+#include "libpspp/i18n.h"
+#include "libpspp/integer-format.h"
+#include "libpspp/legacy-encoding.h"
+#include "libpspp/message.h"
+#include "libpspp/misc.h"
+#include "libpspp/str.h"
#include "settings.h"
#include "value.h"
-#include <libpspp/assertion.h>
-#include <libpspp/legacy-encoding.h>
-#include <libpspp/compiler.h>
-#include <libpspp/integer-format.h>
-#include <libpspp/message.h>
-#include <libpspp/misc.h>
-#include <libpspp/str.h>
-#include "c-ctype.h"
-#include "c-strtod.h"
-#include "minmax.h"
-#include "xalloc.h"
+#include "gl/c-ctype.h"
+#include "gl/c-strtod.h"
+#include "gl/minmax.h"
+#include "gl/xalloc.h"
#include "gettext.h"
#define _(msgid) gettext (msgid)
/* Information about parsing one data field. */
struct data_in
{
- enum legacy_encoding encoding;/* Encoding of source. */
struct substring input; /* Source. */
enum fmt_type format; /* Input format. */
- int implied_decimals; /* Number of implied decimal places. */
union value *output; /* Destination. */
int width; /* Output width. */
int last_column; /* Last column. */
};
-/* Integer format used for IB and PIB input. */
-static enum integer_format input_integer_format = INTEGER_NATIVE;
-
-/* Floating-point format used for RB and RBHEX input. */
-static enum float_format input_float_format = FLOAT_NATIVE_DOUBLE;
-
typedef bool data_in_parser_func (struct data_in *);
#define FMT(NAME, METHOD, IMIN, OMIN, IO, CATEGORY) \
static data_in_parser_func parse_##METHOD;
#include "format.def"
-static void vdata_warning (const struct data_in *, const char *, va_list)
- PRINTF_FORMAT (2, 0);
static void data_warning (const struct data_in *, const char *, ...)
PRINTF_FORMAT (2, 3);
-static void apply_implied_decimals (struct data_in *);
static void default_result (struct data_in *);
static bool trim_spaces_and_check_missing (struct data_in *);
static int hexit_value (int c);
\f
/* Parses the characters in INPUT, which are encoded in the given
- ENCODING, according to FORMAT. Stores the parsed
- representation in OUTPUT, which has the given WIDTH (0 for
- a numeric field, otherwise the string width).
+ INPUT_ENCODING, according to FORMAT.
- If no decimal point is included in a numeric format, then
- IMPLIED_DECIMALS decimal places are implied. Specify 0 if no
- decimal places should be implied.
-
- If FIRST_COLUMN is nonzero, then it should be the 1-based
- column number of the first character in INPUT, used in error
- messages. */
+ Stores the parsed representation in OUTPUT, which the caller must have
+ initialized with the given WIDTH (0 for a numeric field, otherwise the
+ string width). If FORMAT is FMT_A, then OUTPUT_ENCODING must specify the
+ correct encoding for OUTPUT (normally obtained via dict_get_encoding()). */
bool
-data_in (struct substring input, enum legacy_encoding encoding,
- enum fmt_type format, int implied_decimals,
- int first_column, union value *output, int width)
+data_in (struct substring input, const char *input_encoding,
+ enum fmt_type format, int first_column, int last_column,
+ union value *output, int width, const char *output_encoding)
{
static data_in_parser_func *const handlers[FMT_NUMBER_OF_FORMATS] =
{
};
struct data_in i;
- void *copy = NULL;
+
+ enum fmt_category cat;
+ const char *dest_encoding;
+ char *s;
bool ok;
assert ((width != 0) == fmt_is_string (format));
- if (encoding == LEGACY_NATIVE
- || fmt_get_category (format) & (FMT_CAT_BINARY | FMT_CAT_STRING))
- {
- i.input = input;
- i.encoding = encoding;
- }
- else
- {
- ss_alloc_uninit (&i.input, ss_length (input));
- legacy_recode (encoding, ss_data (input), LEGACY_NATIVE,
- ss_data (i.input), ss_length (input));
- i.encoding = LEGACY_NATIVE;
- copy = ss_data (i.input);
- }
i.format = format;
- i.implied_decimals = implied_decimals;
i.output = output;
i.width = width;
i.first_column = first_column;
- i.last_column = first_column + ss_length (input) - 1;
+ i.last_column = last_column;
- if (!ss_is_empty (i.input))
+ if (ss_is_empty (input))
{
- ok = handlers[i.format] (&i);
- if (!ok)
- default_result (&i);
+ default_result (&i);
+ return true;
+ }
+
+ cat = fmt_get_category (format);
+ if (cat & (FMT_CAT_BASIC | FMT_CAT_HEXADECIMAL
+ | FMT_CAT_DATE | FMT_CAT_TIME | FMT_CAT_DATE_COMPONENT))
+ {
+ /* We're going to parse these into numbers. For this purpose we want to
+ deal with them in the local "C" encoding. Any character not in that
+ encoding wouldn't be valid anyhow. */
+ dest_encoding = LEGACY_NATIVE;
+ }
+ else if (cat & (FMT_CAT_BINARY | FMT_CAT_LEGACY))
+ {
+ /* Don't recode these binary formats at all, since they are not text. */
+ dest_encoding = NULL;
}
else
{
- default_result (&i);
- ok = true;
+ assert (cat == FMT_CAT_STRING);
+ if (format == FMT_AHEX)
+ {
+ /* We want the hex digits in the local "C" encoding, even though the
+ result may not be in that encoding. */
+ dest_encoding = LEGACY_NATIVE;
+ }
+ else
+ {
+ /* Use the final output encoding. */
+ dest_encoding = output_encoding;
+ }
}
- if (copy)
- free (copy);
+ if (dest_encoding != NULL)
+ {
+ i.input = recode_substring_pool (dest_encoding, input_encoding, input,
+ NULL);
+ s = i.input.string;
+ }
+ else
+ {
+ i.input = input;
+ s = NULL;
+ }
+
+ ok = handlers[i.format] (&i);
+ if (!ok)
+ default_result (&i);
+
+ free (s);
return ok;
}
-/* Returns the integer format used for IB and PIB input. */
-enum integer_format
-data_in_get_integer_format (void)
+static bool
+number_has_implied_decimals (const char *s, enum fmt_type type)
{
- return input_integer_format;
-}
+ int decimal = settings_get_style (type)->decimal;
+ bool got_digit = false;
+ for (;;)
+ {
+ switch (*s)
+ {
+ case '0': case '1': case '2': case '3': case '4':
+ case '5': case '6': case '7': case '8': case '9':
+ got_digit = true;
+ break;
-/* Sets the integer format used for IB and PIB input to
- FORMAT. */
-void
-data_in_set_integer_format (enum integer_format format)
-{
- input_integer_format = format;
+ case '+': case '-':
+ if (got_digit)
+ return false;
+ break;
+
+ case 'e': case 'E': case 'd': case 'D':
+ return false;
+
+ case '.': case ',':
+ if (*s == decimal)
+ return false;
+ break;
+
+ case '\0':
+ return true;
+
+ default:
+ break;
+ }
+
+ s++;
+ }
}
-/* Returns the floating-point format used for RB and RBHEX
- input. */
-enum float_format
-data_in_get_float_format (void)
+static bool
+has_implied_decimals (struct substring input, const char *input_encoding,
+ enum fmt_type format)
{
- return input_float_format;
+ bool retval;
+ char *s;
+
+ switch (format)
+ {
+ case FMT_F:
+ case FMT_COMMA:
+ case FMT_DOT:
+ case FMT_DOLLAR:
+ case FMT_PCT:
+ case FMT_E:
+ case FMT_Z:
+ break;
+
+ case FMT_N:
+ case FMT_IB:
+ case FMT_PIB:
+ case FMT_P:
+ case FMT_PK:
+ return true;
+
+ default:
+ return false;
+ }
+
+ s = recode_string (LEGACY_NATIVE, input_encoding,
+ ss_data (input), ss_length (input));
+ retval = (format == FMT_Z
+ ? strchr (s, '.') == NULL
+ : number_has_implied_decimals (s, format));
+ free (s);
+
+ return retval;
}
-/* Sets the floating-point format used for RB and RBHEX input to
- FORMAT. */
+/* In some cases, when no decimal point is explicitly included in numeric
+ input, its position is implied by the number of decimal places in the input
+ format. In such a case, this function may be called just after data_in().
+ Its arguments are a subset of that function's arguments plus D, the number
+ of decimal places associated with FORMAT.
+
+ If it is appropriate, this function modifies the numeric value in OUTPUT. */
void
-data_in_set_float_format (enum float_format format)
+data_in_imply_decimals (struct substring input, const char *input_encoding,
+ enum fmt_type format, int d, union value *output)
{
- input_float_format = format;
+ if (d > 0 && output->f != SYSMIS
+ && has_implied_decimals (input, input_encoding, format))
+ output->f /= pow (10., d);
}
\f
/* Format parsers. */
static bool
parse_number (struct data_in *i)
{
- const struct fmt_number_style *style = fmt_get_style (i->format);
+ const struct fmt_number_style *style =
+ settings_get_style (i->format);
struct string tmp;
int save_errno;
char *tail;
- assert (fmt_get_category (i->format) != FMT_CAT_CUSTOM);
+ if (fmt_get_category (i->format) == FMT_CAT_CUSTOM)
+ {
+ style = settings_get_style (FMT_F);
+ }
/* Trim spaces and check for missing value representation. */
if (trim_spaces_and_check_missing (i))
else
{
errno = save_errno;
- if (!explicit_decimals)
- apply_implied_decimals (i);
}
ds_destroy (&tmp);
i->output->f = i->output->f * 10.0 + (c - '0');
}
- apply_implied_decimals (i);
return true;
}
}
}
else
- {
- errno = save_errno;
- if (!got_dot)
- apply_implied_decimals (i);
- }
+ errno = save_errno;
ds_destroy (&tmp);
return true;
uint64_t sign_bit;
bytes = MIN (8, ss_length (i->input));
- value = integer_get (input_integer_format, ss_data (i->input), bytes);
+ value = integer_get (settings_get_input_integer_format (), ss_data (i->input), bytes);
sign_bit = UINT64_C(1) << (8 * bytes - 1);
if (!(value & sign_bit))
i->output->f = -(double) -value;
}
- apply_implied_decimals (i);
-
return true;
}
static bool
parse_PIB (struct data_in *i)
{
- i->output->f = integer_get (input_integer_format, ss_data (i->input),
+ i->output->f = integer_get (settings_get_input_integer_format (), ss_data (i->input),
MIN (8, ss_length (i->input)));
- apply_implied_decimals (i);
-
return true;
}
else if (low_nibble == 0xb || low_nibble == 0xd)
i->output->f = -i->output->f;
- apply_implied_decimals (i);
-
return true;
}
i->output->f = (100 * i->output->f) + (10 * high_nibble) + low_nibble;
}
- apply_implied_decimals (i);
-
return true;
}
static bool
parse_RB (struct data_in *i)
{
- size_t size = float_get_size (input_float_format);
+ enum float_format ff = settings_get_input_float_format ();
+ size_t size = float_get_size (ff);
if (ss_length (i->input) >= size)
- float_convert (input_float_format, ss_data (i->input),
+ float_convert (ff, ss_data (i->input),
FLOAT_NATIVE_DOUBLE, &i->output->f);
else
i->output->f = SYSMIS;
{
/* This is equivalent to buf_copy_rpad, except that we posibly
do a character set recoding in the middle. */
- char *dst = i->output->s;
+ uint8_t *dst = value_str_rw (i->output, i->width);
size_t dst_size = i->width;
const char *src = ss_data (i->input);
size_t src_size = ss_length (i->input);
- legacy_recode (i->encoding, src, LEGACY_NATIVE, dst, MIN (src_size, dst_size));
+ memcpy (dst, src, MIN (src_size, dst_size));
+
if (dst_size > src_size)
memset (&dst[src_size], ' ', dst_size - src_size);
static bool
parse_AHEX (struct data_in *i)
{
+ uint8_t *s = value_str_rw (i->output, i->width);
size_t j;
for (j = 0; ; j++)
return false;
}
- if (i->encoding != LEGACY_NATIVE)
- {
- hi = legacy_to_native (i->encoding, hi);
- lo = legacy_to_native (i->encoding, lo);
- }
if (!c_isxdigit (hi) || !c_isxdigit (lo))
{
data_warning (i, _("Field must contain only hex digits."));
}
if (j < i->width)
- i->output->s[j] = hexit_value (hi) * 16 + hexit_value (lo);
+ s[j] = hexit_value (hi) * 16 + hexit_value (lo);
}
- memset (i->output->s + j, ' ', i->width - j);
+ memset (&s[j], ' ', i->width - j);
return true;
}
exact matches (except for case) are allowed.
Returns true if successful, false otherwise. */
static bool
-match_name (struct substring token, const char **names, long *output)
+match_name (struct substring token, const char *const *names, long *output)
{
int i;
}
else
{
- static const char *english_names[] =
+ static const char *const english_names[] =
{
"jan", "feb", "mar", "apr", "may", "jun",
"jul", "aug", "sep", "oct", "nov", "dec",
NULL,
};
- static const char *roman_names[] =
+ static const char *const roman_names[] =
{
"i", "ii", "iii", "iv", "v", "vi",
"vii", "viii", "ix", "x", "xi", "xii",
if (*year >= 0 && *year <= 99)
{
- int epoch = get_epoch ();
+ int epoch = settings_get_epoch ();
int epoch_century = ROUND_DOWN (epoch, 100);
int epoch_offset = epoch - epoch_century;
if (*year >= epoch_offset)
if (ss_is_empty (i->input))
return true;
- data_warning (i, _("Trailing garbage \"%.*s\" following date."),
+ data_warning (i, _("Trailing garbage `%.*s' following date."),
(int) ss_length (i->input), ss_data (i->input));
return false;
}
cp = buf;
while (c_isdigit (ss_first (i->input)))
*cp++ = ss_get_char (&i->input);
- if (ss_match_char (&i->input, fmt_decimal_char (FMT_F)))
+ if (ss_match_char (&i->input, settings_get_decimal_char (FMT_F)))
*cp++ = '.';
while (c_isdigit (ss_first (i->input)))
*cp++ = ss_get_char (&i->input);
static bool
parse_weekday (struct data_in *i, long *weekday)
{
- static const char *weekday_names[] =
+ static const char *const weekday_names[] =
{
"su", "mo", "tu", "we", "th", "fr", "sa",
NULL,
\f
/* Date & time formats. */
-/* Helper function for passing to
- calendar_gregorian_to_offset. */
-static void
-calendar_error (void *i_, const char *format, ...)
-{
- struct data_in *i = i_;
- va_list args;
-
- va_start (args, format);
- vdata_warning (i, format, args);
- va_end (args);
-}
-
/* Parses WKDAY format. */
static bool
parse_WKDAY (struct data_in *i)
if (year != INT_MIN)
{
- double ofs = calendar_gregorian_to_offset (year, month, day,
- calendar_error, i);
+ char *error;
+ double ofs;
+
+ ofs = calendar_gregorian_to_offset (year, month, day, &error);
if (ofs == SYSMIS)
- return false;
+ {
+ data_warning (i, "%s", error);
+ free (error);
+ return false;
+ }
date = (yday - 1 + ofs) * 60. * 60. * 24.;
}
else
return true;
}
+
\f
/* Utility functions. */
-/* Outputs FORMAT with the given ARGS as a warning for input
- I. */
+/* Outputs FORMAT with as a warning for input I. */
static void
-vdata_warning (const struct data_in *i, const char *format, va_list args)
+data_warning (const struct data_in *i, const char *format, ...)
{
+ va_list args;
struct msg m;
struct string text;
ds_init_empty (&text);
ds_put_char (&text, '(');
- if (i->first_column != 0)
- {
- if (i->first_column == i->last_column)
- ds_put_format (&text, _("column %d"), i->first_column);
- else
- ds_put_format (&text, _("columns %d-%d"),
- i->first_column, i->last_column);
- ds_put_cstr (&text, ", ");
- }
ds_put_format (&text, _("%s field) "), fmt_name (i->format));
+
+ va_start (args, format);
ds_put_vformat (&text, format, args);
+ va_end (args);
- m.category = MSG_DATA;
- m.severity = MSG_WARNING;
+ m.category = MSG_C_DATA;
+ m.severity = MSG_S_WARNING;
m.text = ds_cstr (&text);
+ m.where.file_name = NULL;
+ m.where.line_number = 0;
+ m.where.first_column = i->first_column;
+ m.where.last_column = i->last_column;
msg_emit (&m);
}
-/* Outputs FORMAT with the given ARGS as a warning for input
- I. */
-static void
-data_warning (const struct data_in *i, const char *format, ...)
-{
- va_list args;
-
- va_start (args, format);
- vdata_warning (i, format, args);
- va_end (args);
-}
-
-/* Apply implied decimal places to output. */
-static void
-apply_implied_decimals (struct data_in *i)
-{
- if (i->implied_decimals > 0)
- i->output->f /= pow (10., i->implied_decimals);
-}
-
/* Sets the default result for I.
For a numeric format, this is the value set on SET BLANKS
(typically system-missing); for a string format, it is all
default_result (struct data_in *i)
{
if (fmt_is_string (i->format))
- memset (i->output->s, ' ', i->width);
+ memset (value_str_rw (i->output, i->width), ' ', i->width);
else
- i->output->f = get_blanks ();
+ i->output->f = settings_get_blanks ();
}
/* Trims leading and trailing spaces from I.
projects / pspp / blobdiff