--- /dev/null
+/* Object Pascal format strings.
+ Copyright (C) 2001 Free Software Foundation, Inc.
+ Written by Bruno Haible <haible@clisp.cons.org>, 2001.
+
+ 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 2, 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, write to the Free Software Foundation,
+ Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <stdbool.h>
+#include <stdlib.h>
+
+#include "format.h"
+#include "c-ctype.h"
+#include "xmalloc.h"
+#include "system.h"
+#include "error.h"
+#include "progname.h"
+#include "libgettext.h"
+
+#define _(str) gettext (str)
+
+/* Object Pascal format strings are usable with the "format" function in the
+ "sysutils" unit. They are implemented in fpc-1.0.4/rtl/objpas/sysstr.inc.
+ Another implementation exists in Borland Delphi. The GNU Pascal's
+ "sysutils" doesn't (yet?) have the "format" function.
+
+ A directive
+ - starts with '%',
+ - either
+ - is finished with '%', or
+ - - is optionally followed by an index specification: '*' (reads an
+ argument, must be of type integer) or a nonempty digit sequence,
+ followed by ':',
+ - is optionally followed by '-', which acts as a flag,
+ - is optionally followed by a width specification: '*' (reads an
+ argument, must be of type integer) or a nonempty digit sequence,
+ - is optionally followed by '.' and a precision specification: '*'
+ (reads an argument, must be of type integer) or a nonempty digit
+ sequence,
+ - is finished by a case-insensitive specifier. If no index was
+ specified, it reads an argument; otherwise is uses the index-th
+ argument, 0-based.
+ - 'd', needs an 'integer' or 'int64' argument,
+ - 'e', 'f', 'g', 'n', 'm', need an 'extended' floating-point argument,
+ - 's', needs a 'string', 'char', 'pchar' or 'ansistring' argument,
+ - 'p', needs a 'pointer' argument,
+ - 'x', needs an integer argument.
+ Numbered and unnumbered argument specifications can be used in the same
+ string. Numbered argument specifications have no influence on the
+ "current argument index", that is incremented each time an argument is read.
+ */
+
+enum format_arg_type
+{
+ FAT_INTEGER, /* integer */
+ FAT_INTEGER64, /* integer, int64 */
+ FAT_FLOAT, /* extended */
+ FAT_STRING, /* string, char, pchar, ansistring */
+ FAT_POINTER
+};
+
+struct numbered_arg
+{
+ unsigned int number;
+ enum format_arg_type type;
+};
+
+struct spec
+{
+ unsigned int directives;
+ unsigned int numbered_arg_count;
+ unsigned int allocated;
+ 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)
+
+
+/* Prototypes for local functions. Needed to ensure compiler checking of
+ function argument counts despite of K&R C function definition syntax. */
+static int numbered_arg_compare PARAMS ((const void *p1, const void *p2));
+static void *format_parse PARAMS ((const char *format));
+static void format_free PARAMS ((void *descr));
+static int format_get_number_of_directives PARAMS ((void *descr));
+static bool format_check PARAMS ((const lex_pos_ty *pos,
+ void *msgid_descr, void *msgstr_descr));
+
+
+static int
+numbered_arg_compare (p1, p2)
+ 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);
+}
+
+static void *
+format_parse (format)
+ const char *format;
+{
+ unsigned int directives;
+ unsigned int numbered_arg_count;
+ unsigned int allocated;
+ struct numbered_arg *numbered;
+ unsigned int unnumbered_arg_count;
+ struct spec *result;
+
+ enum arg_index
+ {
+ index_numbered, /* index given by a fixed integer */
+ index_unnumbered, /* index given by unnumbered_arg_count++ */
+ index_unknown /* index is only known at run time */
+ };
+
+ directives = 0;
+ numbered_arg_count = 0;
+ allocated = 0;
+ numbered = NULL;
+ unnumbered_arg_count = 0;
+
+ for (; *format != '\0';)
+ if (*format++ == '%')
+ {
+ /* A directive. */
+ directives++;
+
+ if (*format != '%')
+ {
+ /* A complex directive. */
+ enum arg_index main_arg = index_unnumbered;
+ unsigned int main_number = 0;
+ enum format_arg_type type;
+
+ if (isdigit (*format))
+ {
+ const char *f = format;
+ unsigned int m = 0;
+
+ do
+ {
+ m = 10 * m + (*f - '0');
+ f++;
+ }
+ while (isdigit (*f));
+
+ if (*f == ':')
+ {
+ main_number = m;
+ main_arg = index_numbered;
+ format = ++f;
+ }
+ }
+ else if (*format == '*')
+ {
+ if (format[1] == ':')
+ {
+ main_arg = index_unknown;
+ format += 2;
+ }
+ }
+
+ /* Parse flags. */
+ if (*format == '-')
+ format++;
+
+ /* Parse width. */
+ if (isdigit (*format))
+ {
+ do
+ format++;
+ while (isdigit (*format));
+ }
+ else if (*format == '*')
+ {
+ /* Unnumbered argument of type FAT_INTEGER. */
+ if (allocated == numbered_arg_count)
+ {
+ allocated = 2 * allocated + 1;
+ numbered = (struct numbered_arg *) xrealloc (numbered, allocated * sizeof (struct numbered_arg));
+ }
+ numbered[numbered_arg_count].number = unnumbered_arg_count;
+ numbered[numbered_arg_count].type = FAT_INTEGER;
+ numbered_arg_count++;
+ unnumbered_arg_count++;
+
+ format++;
+ }
+
+ /* Parse precision. */
+ if (*format == '.')
+ {
+ format++;
+
+ if (isdigit (*format))
+ {
+ do
+ format++;
+ while (isdigit (*format));
+ }
+ else if (*format == '*')
+ {
+ /* Unnumbered argument of type FAT_INTEGER. */
+ if (allocated == unnumbered_arg_count)
+ {
+ allocated = 2 * allocated + 1;
+ numbered = (struct numbered_arg *) xrealloc (numbered, allocated * sizeof (struct numbered_arg));
+ }
+ numbered[numbered_arg_count].number = unnumbered_arg_count;
+ numbered[numbered_arg_count].type = FAT_INTEGER;
+ numbered_arg_count++;
+ unnumbered_arg_count++;
+
+ format++;
+ }
+ else
+ --format; /* will jump to bad_format */
+ }
+
+ switch (c_tolower (*format))
+ {
+ case 'd':
+ type = FAT_INTEGER64;
+ break;
+ case 'e': case 'f': case 'g': case 'n': case 'm':
+ type = FAT_FLOAT;
+ break;
+ case 's':
+ type = FAT_STRING;
+ break;
+ case 'p':
+ type = FAT_POINTER;
+ break;
+ case 'x':
+ type = FAT_INTEGER;
+ break;
+ default:
+ goto bad_format;
+ }
+
+ if (allocated == numbered_arg_count)
+ {
+ allocated = 2 * allocated + 1;
+ numbered = (struct numbered_arg *) xrealloc (numbered, allocated * sizeof (struct numbered_arg));
+ }
+ switch (main_arg)
+ {
+ case index_unnumbered:
+ numbered[numbered_arg_count].number = unnumbered_arg_count;
+ numbered[numbered_arg_count].type = type;
+ unnumbered_arg_count++;
+ break;
+ case index_numbered:
+ numbered[numbered_arg_count].number = main_number;
+ numbered[numbered_arg_count].type = type;
+ break;
+ case index_unknown:
+ numbered[numbered_arg_count].number = unnumbered_arg_count;
+ numbered[numbered_arg_count].type = FAT_INTEGER;
+ unnumbered_arg_count++;
+ break;
+ default:
+ abort ();
+ }
+ numbered_arg_count++;
+ }
+
+ format++;
+ }
+
+ /* Sort the numbered argument array, and eliminate duplicates. */
+ if (numbered_arg_count > 1)
+ {
+ unsigned int i, j;
+ bool err;
+
+ qsort (numbered, 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 < numbered_arg_count; i++)
+ if (j > 0 && numbered[i].number == numbered[j-1].number)
+ {
+ enum format_arg_type type1 = numbered[i].type;
+ enum format_arg_type type2 = numbered[j-1].type;
+ enum format_arg_type type_both;
+
+ if (type1 == type2)
+ type_both = type1;
+ else if ((type1 == FAT_INTEGER && type2 == FAT_INTEGER64)
+ || (type1 == FAT_INTEGER64 && type2 == FAT_INTEGER))
+ type_both = FAT_INTEGER;
+ else
+ /* Incompatible types. */
+ type_both = type1, err = true;
+
+ numbered[j-1].type = type_both;
+ }
+ else
+ {
+ if (j < i)
+ {
+ numbered[j].number = numbered[i].number;
+ numbered[j].type = numbered[i].type;
+ }
+ j++;
+ }
+ numbered_arg_count = j;
+ if (err)
+ goto bad_format;
+ }
+
+ result = (struct spec *) xmalloc (sizeof (struct spec));
+ result->directives = directives;
+ result->numbered_arg_count = numbered_arg_count;
+ result->allocated = allocated;
+ result->numbered = numbered;
+ return result;
+
+ bad_format:
+ if (numbered != NULL)
+ free (numbered);
+ return NULL;
+}
+
+static void
+format_free (descr)
+ void *descr;
+{
+ struct spec *spec = (struct spec *) descr;
+
+ if (spec->numbered != NULL)
+ free (spec->numbered);
+ free (spec);
+}
+
+static int
+format_get_number_of_directives (descr)
+ void *descr;
+{
+ struct spec *spec = (struct spec *) descr;
+
+ return spec->directives;
+}
+
+static bool
+format_check (pos, msgid_descr, msgstr_descr)
+ const lex_pos_ty *pos;
+ void *msgid_descr;
+ void *msgstr_descr;
+{
+ struct spec *spec1 = (struct spec *) msgid_descr;
+ struct spec *spec2 = (struct spec *) msgstr_descr;
+ bool err = false;
+
+ if (spec1->numbered_arg_count + spec2->numbered_arg_count > 0)
+ {
+ unsigned int i;
+ unsigned int n = MAX (spec1->numbered_arg_count, spec2->numbered_arg_count);
+
+ /* Check the argument names are the same.
+ Both arrays are sorted. We search for the first difference. */
+ for (i = 0; i < n; i++)
+ {
+ int cmp = (i >= spec1->numbered_arg_count ? 1 :
+ i >= spec2->numbered_arg_count ? -1 :
+ spec1->numbered[i].number > spec2->numbered[i].number ? 1 :
+ spec1->numbered[i].number < spec2->numbered[i].number ? -1 :
+ 0);
+
+ if (cmp > 0)
+ {
+ error_with_progname = false;
+ error_at_line (0, 0, pos->file_name, pos->line_number,
+ _("a format specification for argument {%u} doesn't exist in 'msgid'"),
+ spec2->numbered[i].number);
+ error_with_progname = true;
+ err = true;
+ break;
+ }
+ else if (cmp < 0)
+ {
+ error_with_progname = false;
+ error_at_line (0, 0, pos->file_name, pos->line_number,
+ _("a format specification for argument {%u} doesn't exist in 'msgstr'"),
+ spec1->numbered[i].number);
+ error_with_progname = true;
+ err = true;
+ break;
+ }
+ }
+ /* Check the argument types are the same. */
+ if (!err)
+ for (i = 0; i < spec2->numbered_arg_count; i++)
+ if (spec1->numbered[i].type != spec2->numbered[i].type)
+ {
+ error_with_progname = false;
+ error_at_line (0, 0, pos->file_name, pos->line_number,
+ _("format specifications in 'msgid' and 'msgstr' for argument {%u} are not the same"),
+ spec2->numbered[i].number);
+ error_with_progname = true;
+ err = true;
+ break;
+ }
+ }
+
+ return err;
+}
+
+
+struct formatstring_parser formatstring_pascal =
+{
+ format_parse,
+ format_free,
+ format_get_number_of_directives,
+ format_check
+};
+
+
+#ifdef TEST
+
+/* Test program: Print the argument list specification returned by
+ format_parse for strings read from standard input. */
+
+#include <stdio.h>
+#include "getline.h"
+
+static void
+format_print (descr)
+ void *descr;
+{
+ struct spec *spec = (struct spec *) descr;
+ unsigned int last;
+ unsigned int i;
+
+ if (spec == NULL)
+ {
+ printf ("INVALID");
+ return;
+ }
+
+ printf ("(");
+ last = 0;
+ 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_INTEGER:
+ printf ("i");
+ break;
+ case FAT_INTEGER64:
+ printf ("I");
+ break;
+ case FAT_FLOAT:
+ printf ("f");
+ break;
+ case FAT_STRING:
+ printf ("s");
+ break;
+ case FAT_POINTER:
+ printf ("p");
+ break;
+ default:
+ abort ();
+ }
+ last = number + 1;
+ }
+ printf (")");
+}
+
+int
+main ()
+{
+ for (;;)
+ {
+ char *line = NULL;
+ size_t line_len = 0;
+ void *descr;
+
+ if (getline (&line, &line_len, stdin) < 0)
+ break;
+
+ descr = format_parse (line);
+
+ format_print (descr);
+ printf ("\n");
+
+ free (line);
+ }
+
+ return 0;
+}
+
+/*
+ * For Emacs M-x compile
+ * Local Variables:
+ * compile-command: "gcc -O -g -Wall -I.. -I../lib -I../intl -DHAVE_CONFIG_H -DTEST format-pascal.c ../lib/libnlsut.a"
+ * End:
+ */
+
+#endif /* TEST */
--- /dev/null
+#! /bin/sh
+
+# Test recognition of Object Pascal format strings.
+
+tmpfiles=""
+trap 'rm -fr $tmpfiles' 1 2 3 15
+
+tmpfiles="$tmpfiles f-op-1.data"
+cat <<\EOF > f-op-1.data
+# Valid: no argument
+"abc%%"
+# Valid: one string argument
+"abc%s"
+# Valid: one integer argument
+"abc%d"
+# Valid: one integer argument
+"abc%X"
+# Valid: one floating-point argument
+"abc%e"
+# Valid: one floating-point argument
+"abc%f"
+# Valid: one floating-point argument
+"abc%g"
+# Valid: one floating-point argument
+"abc%n"
+# Valid: one floating-point argument
+"abc%m"
+# Valid: one pointer argument
+"abc%p"
+# Valid: one argument with flags
+"abc%-g"
+# Valid: one argument with width
+"abc%2g"
+# Valid: one argument with width
+"abc%*g"
+# Valid: one argument with precision
+"abc%.4g"
+# Valid: one argument with precision
+"abc%.*g"
+# Valid: one argument with width and precision
+"abc%14.4g"
+# Valid: one argument with width and precision
+"abc%14.*g"
+# Valid: one argument with width and precision
+"abc%*.4g"
+# Valid: one argument with width and precision
+"abc%*.*g"
+# Invalid: unterminated
+"abc%"
+# Invalid: unknown format specifier
+"abc%y"
+# Invalid: flags after width
+"abc%*-g"
+# Invalid: twice precision
+"abc%.4.2g"
+# Valid: three arguments
+"abc%d%x%x"
+# Valid: a numbered argument
+"abc%0:d"
+# Valid: two-digit numbered arguments
+"abc%10:def%9:dgh%8:dij%7:dkl%6:dmn%5:dop%4:dqr%3:dst%2:duv%1:dwx%0:dyz"
+# Invalid: unterminated number
+"abc%1"
+# Invalid: flags before number
+"abc%-0:d"
+# Valid: three arguments, two with same number
+"abc%0:4e,%1:p,%0:g"
+# Invalid: argument with conflicting types
+"abc%0:4x,%1:p,%0:s"
+# Invalid: argument with conflicting types
+"abc%0:4e,%1:p,%0:d"
+# Valid: argument with different but not conflicting types
+"abc%0:4x,%1:p,%0:d"
+# Valid: mixing of numbered and unnumbered arguments
+"abc%d%1:x"
+# Valid: numbered argument with constant precision
+"abc%0:.9x"
+# Valid: mixing of numbered and unnumbered arguments
+"abc%3:.*x"
+# Valid: missing non-final argument
+"abc%1:x%3:s"
+# Valid: permutation
+"abc%1:ddef%0:d"
+# Valid: multiple uses of same argument
+"abc%2:xdef%1:pghi%2:x"
+# Valid: one argument with width
+"abc%1:*g"
+# Valid: one argument with width and precision
+"abc%2:*.*g"
+EOF
+
+: ${XGETTEXT=xgettext}
+n=0
+while read comment; do
+ read string
+ n=`expr $n + 1`
+ tmpfiles="$tmpfiles f-op-1-$n.in f-op-1-$n.po"
+ echo "x.y=${string}" | sed -e "s/\"/'/g" > f-op-1-$n.in
+ ${XGETTEXT} -L RST -o f-op-1-$n.po f-op-1-$n.in || exit 1
+ test -f f-op-1-$n.po || exit 1
+ fail=
+ if echo "$comment" | grep 'Valid:' > /dev/null; then
+ if grep object-pascal-format f-op-1-$n.po > /dev/null; then
+ :
+ else
+ fail=yes
+ fi
+ else
+ if grep object-pascal-format f-op-1-$n.po > /dev/null; then
+ fail=yes
+ else
+ :
+ fi
+ fi
+ if test -n "$fail"; then
+ echo "Format string recognition error:" 1>&2
+ cat f-op-1-$n.in 1>&2
+ echo "Got:" 1>&2
+ cat f-op-1-$n.po 1>&2
+ exit 1
+ fi
+done < f-op-1.data
+
+rm -fr $tmpfiles
+
+exit 0
projects / thirdparty / gettext.git / commitdiff
