--- /dev/null
+/* Ruby format strings.
+ Copyright (C) 2001-2004, 2006-2009, 2019-2020 Free Software Foundation, Inc.
+ Written by Bruno Haible <bruno@clisp.org>, 2020.
+
+ 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
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <https://www.gnu.org/licenses/>. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <limits.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "format.h"
+#include "c-ctype.h"
+#include "xalloc.h"
+#include "xvasprintf.h"
+#include "format-invalid.h"
+#include "gettext.h"
+
+#define _(str) gettext (str)
+
+/* Ruby format strings are described in
+ https://ruby-doc.org/core-2.7.1/Kernel.html#method-i-sprintf
+ and are implemented in ruby-2.7.1/sprintf.c .
+ A format string consists of literal text and directives.
+ A directive
+ - starts with '%',
+ - is optionally followed by a sequence of the following:
+ - any of the characters ' ', '#', '+', '-', '0', each of which acts as a
+ flag,
+ - a digit sequence starting with a non-zero digit, followed by '$', at
+ most once per directive, indicating a positional argument to consume,
+ - '<' KEY '>', at most once per directive, indicating a hash table element
+ to consume,
+ - a digit sequence starting with a non-zero digit, specifying a width,
+ - '*', indicating a width, taken from the argument list,
+ - '*' and a digit sequence, followed by '$', indicating a width, taken
+ from a positional argument,
+ - '.' and a digit sequence, indicating a precision,
+ - '.' '*', indicating a precision, taken from the argument list,
+ - '.' '*' and a digit sequence, followed by '$', indicating a precision,
+ taken from a positional argument.
+ This sequence is in any order, except that
+ - flags must occur before width and precision,
+ - width must occur before precision.
+ - is finished by a specifier
+ - 's', that takes an object to print without double-quote delimiters,
+ - 'p', that takes an object to print with double-quote delimiters (in case
+ of a string),
+ - '{' KEY '}', indicating a hash table element to consume and to print
+ like with 's',
+ - 'c', that takes a character,
+ - 'd', 'i', 'u', 'o', 'x', 'X', 'b', 'B', that take an integer,
+ - 'f', 'g', 'G', 'e', 'E', 'a', 'A', that take a floating-point number.
+ Additionally there are the directives '%%' '%<newline>', which take no
+ argument.
+ Numbered, unnumbered, and named argument specifications cannot be used in
+ the same string; either all arguments are numbered, or all arguments are
+ unnumbered, or all arguments are named.
+ */
+
+enum format_arg_type
+{
+ FAT_NONE,
+ FAT_ANY,
+ FAT_ESCAPED_ANY,
+ FAT_CHARACTER,
+ FAT_INTEGER,
+ FAT_FLOAT
+};
+
+struct named_arg
+{
+ char *name;
+ enum format_arg_type type;
+};
+
+struct numbered_arg
+{
+ unsigned int number;
+ enum format_arg_type type;
+};
+
+struct spec
+{
+ unsigned int directives;
+ unsigned int named_arg_count;
+ unsigned int numbered_arg_count;
+ struct named_arg *named;
+ struct numbered_arg *numbered;
+};
+
+/* Locale independent test for a decimal digit.
+ Argument can be 'char' or 'unsigned char'. (Whereas the argument of
+ <ctype.h> isdigit must be an 'unsigned char'.) */
+#undef isdigit
+#define isdigit(c) ((unsigned int) ((c) - '0') < 10)
+
+
+static int
+named_arg_compare (const void *p1, const void *p2)
+{
+ return strcmp (((const struct named_arg *) p1)->name,
+ ((const struct named_arg *) p2)->name);
+}
+
+static int
+numbered_arg_compare (const void *p1, const void *p2)
+{
+ unsigned int n1 = ((const struct numbered_arg *) p1)->number;
+ unsigned int n2 = ((const struct numbered_arg *) p2)->number;
+
+ return (n1 > n2 ? 1 : n1 < n2 ? -1 : 0);
+}
+
+#define INVALID_MIXES_NAMED_UNNAMED() \
+ xstrdup (_("The string refers to arguments both through argument names and through unnamed argument specifications."))
+
+#define INVALID_TWO_ARG_NAMES(directive_number) \
+ xasprintf (_("In the directive number %u, two names are given for the same argument."), directive_number)
+
+#define INVALID_TWO_ARG_NUMBERS(directive_number) \
+ xasprintf (_("In the directive number %u, two numbers are given for the same argument."), directive_number)
+
+#define INVALID_FLAG_AFTER_WIDTH(directive_number) \
+ xasprintf (_("In the directive number %u, a flag is given after the width."), directive_number)
+
+#define INVALID_FLAG_AFTER_PRECISION(directive_number) \
+ xasprintf (_("In the directive number %u, a flag is given after the precision."), directive_number)
+
+#define INVALID_WIDTH_AFTER_PRECISION(directive_number) \
+ xasprintf (_("In the directive number %u, the width is given after the precision."), directive_number)
+
+#define INVALID_WIDTH_TWICE(directive_number) \
+ xasprintf (_("In the directive number %u, a width is given twice."), directive_number)
+
+#define INVALID_PRECISION_TWICE(directive_number) \
+ xasprintf (_("In the directive number %u, a precision is given twice."), directive_number)
+
+static void *
+format_parse (const char *format, bool translated, char *fdi,
+ char **invalid_reason)
+{
+ const char *const format_start = format;
+ struct spec spec;
+ unsigned int unnumbered_arg_count;
+ unsigned int allocated;
+ struct spec *result;
+
+ spec.directives = 0;
+ spec.named_arg_count = 0;
+ spec.numbered_arg_count = 0;
+ spec.named = NULL;
+ spec.numbered = NULL;
+ unnumbered_arg_count = 0;
+ allocated = 0;
+
+ for (; *format != '\0';)
+ if (*format++ == '%')
+ {
+ /* A directive. */
+ char *name = NULL;
+ unsigned int number = 0;
+
+ bool seen_width = false;
+ unsigned int width_number = 0;
+ bool width_takenext = false;
+
+ bool seen_precision = false;
+ unsigned int precision_number = 0;
+ bool precision_takenext = false;
+
+ enum format_arg_type type;
+
+ FDI_SET (format - 1, FMTDIR_START);
+ spec.directives++;
+
+ for (;;)
+ {
+ if (*format == ' '
+ || *format == '#'
+ || *format == '+'
+ || *format == '-'
+ || *format == '0')
+ {
+ /* A flag. */
+ if (seen_width)
+ {
+ *invalid_reason = INVALID_FLAG_AFTER_WIDTH (spec.directives);
+ FDI_SET (format, FMTDIR_ERROR);
+ goto bad_format;
+ }
+ if (seen_precision)
+ {
+ *invalid_reason = INVALID_FLAG_AFTER_PRECISION (spec.directives);
+ FDI_SET (format, FMTDIR_ERROR);
+ goto bad_format;
+ }
+ format++;
+ continue;
+ }
+
+ if (*format == '<')
+ {
+ const char *name_start;
+ const char *name_end;
+ size_t n;
+
+ if ((spec.numbered_arg_count > 0
+ || number > 0 || width_number > 0 || precision_number > 0)
+ || (unnumbered_arg_count > 0
+ || width_takenext || precision_takenext))
+ {
+ *invalid_reason = INVALID_MIXES_NAMED_UNNAMED ();
+ FDI_SET (format, FMTDIR_ERROR);
+ goto bad_format;
+ }
+ if (name != NULL)
+ {
+ *invalid_reason = INVALID_TWO_ARG_NAMES (spec.directives);
+ FDI_SET (format, FMTDIR_ERROR);
+ goto bad_format;
+ }
+
+ name_start = ++format;
+ for (; *format != '\0'; format++)
+ if (*format == '>')
+ break;
+ if (*format == '\0')
+ {
+ *invalid_reason = INVALID_UNTERMINATED_DIRECTIVE ();
+ FDI_SET (format - 1, FMTDIR_ERROR);
+ goto bad_format;
+ }
+ name_end = format++;
+
+ n = name_end - name_start;
+ name = XNMALLOC (n + 1, char);
+ memcpy (name, name_start, n);
+ name[n] = '\0';
+
+ continue;
+ }
+
+ if (isdigit (*format))
+ {
+ unsigned int m = 0;
+
+ do
+ {
+ if (m < UINT_MAX / 10)
+ m = 10 * m + (*format - '0');
+ else
+ m = UINT_MAX - 1;
+ format++;
+ }
+ while (isdigit (*format));
+
+ if (*format == '$')
+ {
+ if (spec.named_arg_count > 0 || name != NULL)
+ {
+ *invalid_reason = INVALID_MIXES_NAMED_UNNAMED ();
+ FDI_SET (format, FMTDIR_ERROR);
+ goto bad_format;
+ }
+ if (unnumbered_arg_count > 0
+ || width_takenext || precision_takenext)
+ {
+ *invalid_reason = INVALID_MIXES_NUMBERED_UNNUMBERED ();
+ FDI_SET (format, FMTDIR_ERROR);
+ goto bad_format;
+ }
+ if (number > 0)
+ {
+ *invalid_reason = INVALID_TWO_ARG_NUMBERS (spec.directives);
+ FDI_SET (format, FMTDIR_ERROR);
+ goto bad_format;
+ }
+ number = m;
+ format++;
+ }
+ else
+ {
+ /* Seen a constant width. */
+ if (seen_precision)
+ {
+ *invalid_reason = INVALID_WIDTH_AFTER_PRECISION (spec.directives);
+ FDI_SET (format, FMTDIR_ERROR);
+ goto bad_format;
+ }
+ if (seen_width)
+ {
+ *invalid_reason = INVALID_WIDTH_TWICE (spec.directives);
+ FDI_SET (format, FMTDIR_ERROR);
+ goto bad_format;
+ }
+ seen_width = true;
+ }
+ continue;
+ }
+
+ if (*format == '*')
+ {
+ /* Parse width. */
+ format++;
+
+ if (isdigit (*format))
+ {
+ const char *f = format;
+ unsigned int m = 0;
+
+ do
+ {
+ if (m < UINT_MAX / 10)
+ m = 10 * m + (*f - '0');
+ else
+ m = UINT_MAX - 1;
+ f++;
+ }
+ while (isdigit (*f));
+
+ if (*f == '$')
+ {
+ format = f;
+ if (spec.named_arg_count > 0 || name != NULL)
+ {
+ *invalid_reason = INVALID_MIXES_NAMED_UNNAMED ();
+ FDI_SET (format, FMTDIR_ERROR);
+ goto bad_format;
+ }
+ if (unnumbered_arg_count > 0
+ || width_takenext || precision_takenext)
+ {
+ *invalid_reason = INVALID_MIXES_NUMBERED_UNNUMBERED ();
+ FDI_SET (format, FMTDIR_ERROR);
+ goto bad_format;
+ }
+ if (seen_precision)
+ {
+ *invalid_reason = INVALID_WIDTH_AFTER_PRECISION (spec.directives);
+ FDI_SET (format, FMTDIR_ERROR);
+ goto bad_format;
+ }
+ if (seen_width)
+ {
+ *invalid_reason = INVALID_WIDTH_TWICE (spec.directives);
+ FDI_SET (format, FMTDIR_ERROR);
+ goto bad_format;
+ }
+ if (m == 0)
+ {
+ *invalid_reason = INVALID_ARGNO_0 (spec.directives);
+ FDI_SET (format, FMTDIR_ERROR);
+ goto bad_format;
+ }
+ seen_width = true;
+ width_number = m;
+ format++;
+ continue;
+ }
+ }
+
+ if (spec.named_arg_count > 0 || name != NULL)
+ {
+ *invalid_reason = INVALID_MIXES_NAMED_UNNAMED ();
+ FDI_SET (format - 1, FMTDIR_ERROR);
+ goto bad_format;
+ }
+ if (spec.numbered_arg_count > 0
+ || number > 0 || width_number > 0 || precision_number > 0)
+ {
+ *invalid_reason = INVALID_MIXES_NUMBERED_UNNUMBERED ();
+ FDI_SET (format - 1, FMTDIR_ERROR);
+ goto bad_format;
+ }
+ if (seen_precision)
+ {
+ *invalid_reason = INVALID_WIDTH_AFTER_PRECISION (spec.directives);
+ FDI_SET (format - 1, FMTDIR_ERROR);
+ goto bad_format;
+ }
+ if (seen_width)
+ {
+ *invalid_reason = INVALID_WIDTH_TWICE (spec.directives);
+ FDI_SET (format - 1, FMTDIR_ERROR);
+ goto bad_format;
+ }
+ seen_width = true;
+ width_takenext = true;
+ continue;
+ }
+
+ if (*format == '.')
+ {
+ /* Parse precision. */
+ format++;
+
+ if (*format == '*')
+ {
+ format++;
+
+ if (isdigit (*format))
+ {
+ const char *f = format;
+ unsigned int m = 0;
+
+ do
+ {
+ if (m < UINT_MAX / 10)
+ m = 10 * m + (*f - '0');
+ else
+ m = UINT_MAX - 1;
+ f++;
+ }
+ while (isdigit (*f));
+
+ if (*f == '$')
+ {
+ format = f;
+ if (spec.named_arg_count > 0 || name != NULL)
+ {
+ *invalid_reason = INVALID_MIXES_NAMED_UNNAMED ();
+ FDI_SET (format, FMTDIR_ERROR);
+ goto bad_format;
+ }
+ if (unnumbered_arg_count > 0
+ || width_takenext || precision_takenext)
+ {
+ *invalid_reason = INVALID_MIXES_NUMBERED_UNNUMBERED ();
+ FDI_SET (format, FMTDIR_ERROR);
+ goto bad_format;
+ }
+ if (seen_precision)
+ {
+ *invalid_reason = INVALID_PRECISION_TWICE (spec.directives);
+ FDI_SET (format, FMTDIR_ERROR);
+ goto bad_format;
+ }
+ if (m == 0)
+ {
+ *invalid_reason = INVALID_ARGNO_0 (spec.directives);
+ FDI_SET (format, FMTDIR_ERROR);
+ goto bad_format;
+ }
+ seen_precision = true;
+ precision_number = m;
+ format++;
+ continue;
+ }
+ }
+
+ if (spec.named_arg_count > 0 || name != NULL)
+ {
+ *invalid_reason = INVALID_MIXES_NAMED_UNNAMED ();
+ FDI_SET (format - 1, FMTDIR_ERROR);
+ goto bad_format;
+ }
+ if (spec.numbered_arg_count > 0
+ || number > 0 || width_number > 0 || precision_number > 0)
+ {
+ *invalid_reason = INVALID_MIXES_NUMBERED_UNNUMBERED ();
+ FDI_SET (format - 1, FMTDIR_ERROR);
+ goto bad_format;
+ }
+ if (seen_precision)
+ {
+ *invalid_reason = INVALID_PRECISION_TWICE (spec.directives);
+ FDI_SET (format - 1, FMTDIR_ERROR);
+ goto bad_format;
+ }
+ seen_precision = true;
+ precision_takenext = true;
+ continue;
+ }
+
+ while (isdigit (*format))
+ format++;
+
+ /* Seen a constant precision. */
+ if (seen_precision)
+ {
+ *invalid_reason = INVALID_PRECISION_TWICE (spec.directives);
+ FDI_SET (format, FMTDIR_ERROR);
+ goto bad_format;
+ }
+ seen_precision = true;
+ continue;
+ }
+
+ break;
+ }
+
+ switch (*format)
+ {
+ case '%':
+ case '\n':
+ type = FAT_NONE;
+ break;
+ case 's':
+ type = FAT_ANY;
+ break;
+ case 'p':
+ type = FAT_ESCAPED_ANY;
+ break;
+ case 'c':
+ type = FAT_CHARACTER;
+ break;
+ case 'd':
+ case 'i':
+ case 'u':
+ case 'o':
+ case 'x':
+ case 'X':
+ case 'b':
+ case 'B':
+ type = FAT_INTEGER;
+ break;
+ case 'f':
+ case 'g':
+ case 'G':
+ case 'e':
+ case 'E':
+ case 'a':
+ case 'A':
+ type = FAT_FLOAT;
+ break;
+ case '{':
+ {
+ const char *name_start;
+ const char *name_end;
+ size_t n;
+
+ if ((spec.numbered_arg_count > 0
+ || number > 0 || width_number > 0 || precision_number > 0)
+ || (unnumbered_arg_count > 0
+ || width_takenext || precision_takenext))
+ {
+ *invalid_reason = INVALID_MIXES_NAMED_UNNAMED ();
+ FDI_SET (format, FMTDIR_ERROR);
+ goto bad_format;
+ }
+ if (name != NULL)
+ {
+ *invalid_reason = INVALID_TWO_ARG_NAMES (spec.directives);
+ FDI_SET (format, FMTDIR_ERROR);
+ goto bad_format;
+ }
+
+ name_start = ++format;
+ for (; *format != '\0'; format++)
+ if (*format == '}')
+ break;
+ if (*format == '\0')
+ {
+ *invalid_reason = INVALID_UNTERMINATED_DIRECTIVE ();
+ FDI_SET (format - 1, FMTDIR_ERROR);
+ goto bad_format;
+ }
+ name_end = format;
+
+ n = name_end - name_start;
+ name = XNMALLOC (n + 1, char);
+ memcpy (name, name_start, n);
+ name[n] = '\0';
+ }
+ type = FAT_ANY;
+ break;
+
+ default:
+ if (*format == '\0')
+ {
+ *invalid_reason = INVALID_UNTERMINATED_DIRECTIVE ();
+ FDI_SET (format - 1, FMTDIR_ERROR);
+ }
+ else
+ {
+ *invalid_reason =
+ INVALID_CONVERSION_SPECIFIER (spec.directives, *format);
+ FDI_SET (format, FMTDIR_ERROR);
+ }
+ goto bad_format;
+ }
+
+ if (seen_width)
+ {
+ /* Register the argument specification for the width. */
+ if (width_number > 0)
+ {
+ if (allocated == spec.numbered_arg_count)
+ {
+ allocated = 2 * allocated + 1;
+ spec.numbered = (struct numbered_arg *) xrealloc (spec.numbered, allocated * sizeof (struct numbered_arg));
+ }
+ spec.numbered[spec.numbered_arg_count].number = width_number;
+ spec.numbered[spec.numbered_arg_count].type = FAT_INTEGER;
+ spec.numbered_arg_count++;
+ }
+ else if (width_takenext)
+ {
+ if (allocated == unnumbered_arg_count)
+ {
+ allocated = 2 * allocated + 1;
+ spec.numbered = (struct numbered_arg *) xrealloc (spec.numbered, allocated * sizeof (struct numbered_arg));
+ }
+ spec.numbered[unnumbered_arg_count].number = unnumbered_arg_count + 1;
+ spec.numbered[unnumbered_arg_count].type = FAT_INTEGER;
+ unnumbered_arg_count++;
+ }
+ }
+
+ if (seen_precision)
+ {
+ /* Register the argument specification for the precision. */
+ if (precision_number > 0)
+ {
+ if (allocated == spec.numbered_arg_count)
+ {
+ allocated = 2 * allocated + 1;
+ spec.numbered = (struct numbered_arg *) xrealloc (spec.numbered, allocated * sizeof (struct numbered_arg));
+ }
+ spec.numbered[spec.numbered_arg_count].number = precision_number;
+ spec.numbered[spec.numbered_arg_count].type = FAT_INTEGER;
+ spec.numbered_arg_count++;
+ }
+ else if (precision_takenext)
+ {
+ if (allocated == unnumbered_arg_count)
+ {
+ allocated = 2 * allocated + 1;
+ spec.numbered = (struct numbered_arg *) xrealloc (spec.numbered, allocated * sizeof (struct numbered_arg));
+ }
+ spec.numbered[unnumbered_arg_count].number = unnumbered_arg_count + 1;
+ spec.numbered[unnumbered_arg_count].type = FAT_INTEGER;
+ unnumbered_arg_count++;
+ }
+ }
+
+ if (type != FAT_NONE)
+ {
+ /* Register the argument specification for the value. */
+ if (name != NULL)
+ {
+ if (allocated == spec.named_arg_count)
+ {
+ allocated = 2 * allocated + 1;
+ spec.named = (struct named_arg *) xrealloc (spec.named, allocated * sizeof (struct named_arg));
+ }
+ spec.named[spec.named_arg_count].name = name;
+ spec.named[spec.named_arg_count].type = type;
+ spec.named_arg_count++;
+ }
+ else if (number > 0)
+ {
+ if (allocated == spec.numbered_arg_count)
+ {
+ allocated = 2 * allocated + 1;
+ spec.numbered = (struct numbered_arg *) xrealloc (spec.numbered, allocated * sizeof (struct numbered_arg));
+ }
+ spec.numbered[spec.numbered_arg_count].number = number;
+ spec.numbered[spec.numbered_arg_count].type = type;
+ spec.numbered_arg_count++;
+ }
+ else
+ {
+ if (spec.named_arg_count > 0)
+ {
+ *invalid_reason = INVALID_MIXES_NAMED_UNNAMED ();
+ FDI_SET (format, FMTDIR_ERROR);
+ goto bad_format;
+ }
+ if (spec.numbered_arg_count > 0)
+ {
+ *invalid_reason = INVALID_MIXES_NUMBERED_UNNUMBERED ();
+ FDI_SET (format, FMTDIR_ERROR);
+ goto bad_format;
+ }
+ if (allocated == unnumbered_arg_count)
+ {
+ allocated = 2 * allocated + 1;
+ spec.numbered = (struct numbered_arg *) xrealloc (spec.numbered, allocated * sizeof (struct numbered_arg));
+ }
+ spec.numbered[unnumbered_arg_count].number = unnumbered_arg_count + 1;
+ spec.numbered[unnumbered_arg_count].type = type;
+ unnumbered_arg_count++;
+ }
+ }
+
+ FDI_SET (format, FMTDIR_END);
+
+ format++;
+ }
+
+ /* Verify that either all arguments are numbered, or all arguments are
+ unnumbered, or all arguments are named. */
+ if ((spec.numbered_arg_count > 0)
+ + (unnumbered_arg_count > 0)
+ + (spec.named_arg_count > 0)
+ > 1)
+ abort ();
+
+ /* Convert the unnumbered argument array to numbered arguments. */
+ if (unnumbered_arg_count > 0)
+ spec.numbered_arg_count = unnumbered_arg_count;
+ /* Sort the numbered argument array, and eliminate duplicates. */
+ else if (spec.numbered_arg_count > 1)
+ {
+ unsigned int i, j;
+ bool err;
+
+ qsort (spec.numbered, spec.numbered_arg_count,
+ sizeof (struct numbered_arg), numbered_arg_compare);
+
+ /* Remove duplicates: Copy from i to j, keeping 0 <= j <= i. */
+ err = false;
+ for (i = j = 0; i < spec.numbered_arg_count; i++)
+ if (j > 0 && spec.numbered[i].number == spec.numbered[j-1].number)
+ {
+ enum format_arg_type type1 = spec.numbered[i].type;
+ enum format_arg_type type2 = spec.numbered[j-1].type;
+ enum format_arg_type type_both;
+
+ if (type1 == type2)
+ type_both = type1;
+ else
+ {
+ /* Incompatible types. */
+ type_both = FAT_NONE;
+ if (!err)
+ *invalid_reason =
+ INVALID_INCOMPATIBLE_ARG_TYPES (spec.numbered[i].number);
+ err = true;
+ }
+
+ spec.numbered[j-1].type = type_both;
+ }
+ else
+ {
+ if (j < i)
+ {
+ spec.numbered[j].number = spec.numbered[i].number;
+ spec.numbered[j].type = spec.numbered[i].type;
+ }
+ j++;
+ }
+ spec.numbered_arg_count = j;
+ if (err)
+ /* *invalid_reason has already been set above. */
+ goto bad_format;
+ }
+
+ /* Sort the named argument array, and eliminate duplicates. */
+ if (spec.named_arg_count > 1)
+ {
+ unsigned int i, j;
+ bool err;
+
+ qsort (spec.named, spec.named_arg_count, sizeof (struct named_arg),
+ named_arg_compare);
+
+ /* Remove duplicates: Copy from i to j, keeping 0 <= j <= i. */
+ err = false;
+ for (i = j = 0; i < spec.named_arg_count; i++)
+ if (j > 0 && strcmp (spec.named[i].name, spec.named[j-1].name) == 0)
+ {
+ enum format_arg_type type1 = spec.named[i].type;
+ enum format_arg_type type2 = spec.named[j-1].type;
+ enum format_arg_type type_both;
+
+ if (type1 == type2)
+ type_both = type1;
+ else
+ {
+ /* Incompatible types. */
+ type_both = FAT_NONE;
+ if (!err)
+ *invalid_reason =
+ xasprintf (_("The string refers to the argument named '%s' in incompatible ways."), spec.named[i].name);
+ err = true;
+ }
+
+ spec.named[j-1].type = type_both;
+ free (spec.named[i].name);
+ }
+ else
+ {
+ if (j < i)
+ {
+ spec.named[j].name = spec.named[i].name;
+ spec.named[j].type = spec.named[i].type;
+ }
+ j++;
+ }
+ spec.named_arg_count = j;
+ if (err)
+ /* *invalid_reason has already been set above. */
+ goto bad_format;
+ }
+
+ result = XMALLOC (struct spec);
+ *result = spec;
+ return result;
+
+ bad_format:
+ if (spec.named != NULL)
+ {
+ unsigned int i;
+ for (i = 0; i < spec.named_arg_count; i++)
+ free (spec.named[i].name);
+ free (spec.named);
+ }
+ if (spec.numbered != NULL)
+ free (spec.numbered);
+ return NULL;
+}
+
+static void
+format_free (void *descr)
+{
+ struct spec *spec = (struct spec *) descr;
+
+ if (spec->named != NULL)
+ {
+ unsigned int i;
+ for (i = 0; i < spec->named_arg_count; i++)
+ free (spec->named[i].name);
+ free (spec->named);
+ }
+ if (spec->numbered != NULL)
+ free (spec->numbered);
+ free (spec);
+}
+
+static int
+format_get_number_of_directives (void *descr)
+{
+ struct spec *spec = (struct spec *) descr;
+
+ return spec->directives;
+}
+
+static bool
+format_check (void *msgid_descr, void *msgstr_descr, bool equality,
+ formatstring_error_logger_t error_logger,
+ const char *pretty_msgid, const char *pretty_msgstr)
+{
+ struct spec *spec1 = (struct spec *) msgid_descr;
+ struct spec *spec2 = (struct spec *) msgstr_descr;
+ bool err = false;
+
+ if (spec1->named_arg_count > 0 && spec2->numbered_arg_count > 0)
+ {
+ if (error_logger)
+ error_logger (_("format specifications in '%s' expect a hash table, those in '%s' expect individual arguments"),
+ pretty_msgid, pretty_msgstr);
+ err = true;
+ }
+ else if (spec1->numbered_arg_count > 0 && spec2->named_arg_count > 0)
+ {
+ if (error_logger)
+ error_logger (_("format specifications in '%s' expect individual arguments, those in '%s' expect a hash table"),
+ pretty_msgid, pretty_msgstr);
+ err = true;
+ }
+ else
+ {
+ if (spec1->named_arg_count + spec2->named_arg_count > 0)
+ {
+ unsigned int i, j;
+ unsigned int n1 = spec1->named_arg_count;
+ unsigned int n2 = spec2->named_arg_count;
+
+ /* Check the argument names are the same.
+ Both arrays are sorted. We search for the first difference. */
+ for (i = 0, j = 0; i < n1 || j < n2; )
+ {
+ int cmp = (i >= n1 ? 1 :
+ j >= n2 ? -1 :
+ strcmp (spec1->named[i].name, spec2->named[j].name));
+
+ if (cmp > 0)
+ {
+ if (error_logger)
+ error_logger (_("a format specification for argument '%s', as in '%s', doesn't exist in '%s'"),
+ spec2->named[j].name, pretty_msgstr,
+ pretty_msgid);
+ err = true;
+ break;
+ }
+ else if (cmp < 0)
+ {
+ if (equality)
+ {
+ if (error_logger)
+ error_logger (_("a format specification for argument '%s' doesn't exist in '%s'"),
+ spec1->named[i].name, pretty_msgstr);
+ err = true;
+ break;
+ }
+ else
+ i++;
+ }
+ else
+ j++, i++;
+ }
+ /* Check the argument types are the same. */
+ if (!err)
+ for (i = 0, j = 0; j < n2; )
+ {
+ if (strcmp (spec1->named[i].name, spec2->named[j].name) == 0)
+ {
+ if (!(spec1->named[i].type == spec2->named[j].type))
+ {
+ if (error_logger)
+ error_logger (_("format specifications in '%s' and '%s' for argument '%s' are not the same"),
+ pretty_msgid, pretty_msgstr,
+ spec2->named[j].name);
+ err = true;
+ break;
+ }
+ j++, i++;
+ }
+ else
+ i++;
+ }
+ }
+
+ if (spec1->numbered_arg_count + spec2->numbered_arg_count > 0)
+ {
+ unsigned int i;
+
+ /* Check the argument types are the same. */
+ if (spec1->numbered_arg_count != spec2->numbered_arg_count)
+ {
+ if (error_logger)
+ error_logger (_("number of format specifications in '%s' and '%s' does not match"),
+ pretty_msgid, pretty_msgstr);
+ err = true;
+ }
+ else
+ for (i = 0; i < spec2->numbered_arg_count; i++)
+ if (!(spec1->numbered[i].type == spec2->numbered[i].type))
+ {
+ if (error_logger)
+ error_logger (_("format specifications in '%s' and '%s' for argument %u are not the same"),
+ pretty_msgid, pretty_msgstr, i + 1);
+ err = true;
+ }
+ }
+ }
+
+ return err;
+}
+
+
+struct formatstring_parser formatstring_ruby =
+{
+ format_parse,
+ format_free,
+ format_get_number_of_directives,
+ NULL,
+ format_check
+};
+
+
+#ifdef TEST
+
+/* Test program: Print the argument list specification returned by
+ format_parse for strings read from standard input. */
+
+#include <stdio.h>
+
+static void
+format_print (void *descr)
+{
+ struct spec *spec = (struct spec *) descr;
+ unsigned int i;
+
+ if (spec == NULL)
+ {
+ printf ("INVALID");
+ return;
+ }
+
+ if (spec->named_arg_count > 0)
+ {
+ if (spec->numbered_arg_count > 0)
+ abort ();
+
+ printf ("({");
+ for (i = 0; i < spec->named_arg_count; i++)
+ {
+ if (i > 0)
+ printf (", ");
+ printf (":%s => ", spec->named[i].name);
+ switch (spec->named[i].type)
+ {
+ case FAT_ANY:
+ printf ("s");
+ break;
+ case FAT_ESCAPED_ANY:
+ printf ("p");
+ break;
+ case FAT_CHARACTER:
+ printf ("c");
+ break;
+ case FAT_INTEGER:
+ printf ("i");
+ break;
+ case FAT_FLOAT:
+ printf ("f");
+ break;
+ default:
+ abort ();
+ }
+ }
+ printf ("})");
+ }
+ else
+ {
+ unsigned int last;
+
+ printf ("(");
+ last = 1;
+ for (i = 0; i < spec->numbered_arg_count; i++)
+ {
+ unsigned int number = spec->numbered[i].number;
+
+ if (i > 0)
+ printf (" ");
+ if (number < last)
+ abort ();
+ for (; last < number; last++)
+ printf ("_ ");
+ switch (spec->numbered[i].type)
+ {
+ case FAT_ANY:
+ printf ("s");
+ break;
+ case FAT_ESCAPED_ANY:
+ printf ("p");
+ break;
+ case FAT_CHARACTER:
+ printf ("c");
+ break;
+ case FAT_INTEGER:
+ printf ("i");
+ break;
+ case FAT_FLOAT:
+ printf ("f");
+ break;
+ default:
+ abort ();
+ }
+ last = number + 1;
+ }
+ printf (")");
+ }
+}
+
+int
+main ()
+{
+ for (;;)
+ {
+ char *line = NULL;
+ size_t line_size = 0;
+ int line_len;
+ char *invalid_reason;
+ void *descr;
+
+ line_len = getline (&line, &line_size, stdin);
+ if (line_len < 0)
+ break;
+ if (line_len > 0 && line[line_len - 1] == '\n')
+ line[--line_len] = '\0';
+
+ invalid_reason = NULL;
+ descr = format_parse (line, false, NULL, &invalid_reason);
+
+ format_print (descr);
+ printf ("\n");
+ if (descr == NULL)
+ printf ("%s\n", invalid_reason);
+
+ free (invalid_reason);
+ free (line);
+ }
+
+ return 0;
+}
+
+/*
+ * For Emacs M-x compile
+ * Local Variables:
+ * compile-command: "/bin/sh ../libtool --tag=CC --mode=link gcc -o a.out -static -O -g -Wall -I.. -I../gnulib-lib -I../../gettext-runtime/intl -DHAVE_CONFIG_H -DTEST format-ruby.c ../gnulib-lib/libgettextlib.la"
+ * End:
+ */
+
+#endif /* TEST */
projects / thirdparty / gettext.git / commitdiff
