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2b83a2a4d9
Merged 1003.2 locale and localedef programs by Ulrich Drepper. * locale/charmap.c: New file. * locale/collate.c: New file. * locale/config.h: New file. * locale/ctype.c: New file. * locale/ctypedump.c: New file. * locale/hash.c: New file. * locale/hash.h: New file. * locale/iso-4217.def: New file. * locale/keyword.gperf: New file. * locale/keyword.h: New file. * locale/libintl.h: New file. * locale/locale.c: New file. * locale/localedef.c: New file. * locale/localedef.h: New file. * locale/locfile-lex.c: New file. * locale/locfile-parse.c: New file. * locale/messages.c: New file. * locale/monetary.c: New file. * locale/numeric.c: New file. * locale/token.h: New file. * posix/regex.c, posix/regex.h: New files, incorporated from GNU regex. * posix/Makefile (headers): Add regex.h. (routines): Add regex. (gpl2lgpl): Add regex.c and regex.h. Tue May 16 17:35:07 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu> * locale/loadlocale.c: Expect macro LOCALE_PATH to be defined, instead of hard-coding "/share/locale".
534 lines
13 KiB
C
534 lines
13 KiB
C
/* Copyright (C) 1995 Free Software Foundation, Inc.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If
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not, write to the Free Software Foundation, Inc., 675 Mass Ave,
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Cambridge, MA 02139, USA. */
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#include <ctype.h>
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#include <langinfo.h>
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#include <libintl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include "localedef.h"
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#include "token.h"
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/* Include the hashing table for the keywords. */
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const struct locale_keyword* in_word_set (register const char *str,
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register int len);
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#include "keyword.h"
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/* Contains the status of reading the locale definition file. */
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struct locfile_data locfile_data;
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/* This is a flag used while collation input. This is the only place
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where element names beside the ones defined in the character map are
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allowed. There we must not give error messages. */
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int reject_new_char = 1;
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/* Prototypes for local functions. */
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static int get_char (void);
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#define LD locfile_data
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/* Opens the locale definition file and initializes the status data structure
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for following calls of `locfile_lex'. */
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void
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locfile_open (const char *fname)
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{
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if (fname == NULL)
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/* We read from stdin. */
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LD.filename = "<stdin>";
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else
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{
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if (freopen (fname, "r", stdin) == NULL)
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error (4, 0, gettext ("input file `%s' not found"), fname);
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LD.filename = fname;
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}
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/* Set default values. */
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LD.escape_char = '\\';
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LD.comment_char = '#';
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LD.bufsize = sysconf (_SC_LINE_MAX);
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LD.buf = (char *) xmalloc (LD.bufsize);
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LD.strbuf = (char *) xmalloc (LD.bufsize);
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LD.buf_ptr = LD.returned_tokens = LD.line_no = 0;
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/* Now sign that we want immediately read a line. */
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LD.continue_line = 1;
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LD.buf[LD.buf_ptr] = '\0';
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}
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int
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xlocfile_lex (char **token, int *token_len)
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{
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int retval = locfile_lex (token, token_len);
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if (retval == 0)
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/* I.e. end of file. */
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error (4, 0, gettext ("%s: unexpected end of file in locale defintion "
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"file"), locfile_data.filename);
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return retval;
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}
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int
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locfile_lex (char **token, int *token_len)
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{
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int start_again;
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int retval = 0;
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do
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{
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int start_ptr;
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start_again = 0;
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/* Read the next line. Skip over empty lines and comments. */
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if ((LD.buf[LD.buf_ptr] == '\0' && LD.continue_line != 0)
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|| LD.buf_ptr >= LD.bufsize
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|| (posix_conformance == 0 && LD.buf[LD.buf_ptr] == LD.comment_char))
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do
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{
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size_t linelen;
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LD.buf_ptr = 0;
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if (fgets (LD.buf, LD.bufsize, stdin) == NULL)
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{
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/* This makes subsequent calls also return EOF. */
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LD.buf[0] = '\0';
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return 0;
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}
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/* Increment line number counter. */
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++LD.line_no;
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/* We now have to look whether this line is continued and
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whether it at all fits into our buffer. */
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linelen = strlen (LD.buf);
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if (linelen == LD.bufsize - 1)
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/* The did not fit into the buffer. */
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error (2, 0, gettext ("%s:%Zd: line too long; use "
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"`getconf LINE_MAX' to get the maximum "
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"line length"), LD.filename, LD.line_no);
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/* Remove '\n' at end of line. */
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if (LD.buf[linelen - 1] == '\n')
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LD.buf[--linelen] = '\0';
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if (linelen > 0 && LD.buf[linelen - 1] == LD.escape_char)
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{
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LD.buf[--linelen] = '\0';
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LD.continue_line = 1;
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}
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else
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LD.continue_line = 0;
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while (isspace (LD.buf[LD.buf_ptr]))
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++LD.buf_ptr;
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/* We are not so restrictive and allow white spaces before
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a comment. */
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if (posix_conformance == 0
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&& LD.buf[LD.buf_ptr] == LD.comment_char
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&& LD.buf_ptr != 0)
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error (0, 0, gettext ("%s:%Zd: comment does not start in "
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"column 1"), LD.filename, LD.line_no);
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}
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while (LD.buf[LD.buf_ptr] == '\0'
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|| LD.buf[LD.buf_ptr] == LD.comment_char);
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/* Get information for return values. */
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*token = LD.buf + LD.buf_ptr;
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start_ptr = LD.buf_ptr;
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/* If no further character is in the line this is the end of a logical
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line. This information is needed in the parser. */
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if (LD.buf[LD.buf_ptr] == '\0')
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{
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LD.buf_ptr = LD.bufsize;
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retval = TOK_ENDOFLINE;
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}
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else if (isalpha (LD.buf[LD.buf_ptr]))
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/* The token is an identifier. The POSIX standard does not say
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what characters might be contained but offical POSIX locale
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definition files contain beside alnum characters '_', '-' and
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'+'. */
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{
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const struct locale_keyword *kw;
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do
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++LD.buf_ptr;
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while (isalnum (LD.buf[LD.buf_ptr]) || LD.buf[LD.buf_ptr] == '_'
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|| LD.buf[LD.buf_ptr] == '-' || LD.buf[LD.buf_ptr] == '+');
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/* Look in table of keywords. */
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kw = in_word_set (*token, LD.buf_ptr - start_ptr);
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if (kw == NULL)
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retval = TOK_IDENT;
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else
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{
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if (kw->token_id == TOK_ESCAPE_CHAR
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|| kw->token_id == TOK_COMMENT_CHAR)
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/* `escape_char' and `comment_char' are keywords for the
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lexer. Do not give them to the parser. */
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{
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start_again = 1;
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if (!isspace (LD.buf[LD.buf_ptr])
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|| (posix_conformance && LD.returned_tokens > 0))
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error (0, 0, gettext ("%s:%Zd: syntax error in locale "
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"definition file"),
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LD.filename, LD.line_no);
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do
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++LD.buf_ptr;
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while (isspace (LD.buf[LD.buf_ptr]));
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kw->token_id == TOK_ESCAPE_CHAR
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? LD.escape_char
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: LD.comment_char = LD.buf[LD.buf_ptr++];
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ignore_to_eol (0, posix_conformance);
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}
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else
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/* It is one of the normal keywords. */
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retval = kw->token_id;
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}
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*token_len = LD.buf_ptr - start_ptr;
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}
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else if (LD.buf[LD.buf_ptr] == '"')
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/* Read a string. All symbolic character descriptions are expanded.
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This has to be done in a local buffer because a simple symbolic
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character like <A> may expand to upto 6 bytes. */
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{
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char *last = LD.strbuf;
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++LD.buf_ptr;
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while (LD.buf[LD.buf_ptr] != '"')
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{
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int pre = LD.buf_ptr;
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int char_val = get_char (); /* token, token_len); */
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if (char_val == 0)
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{
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error (4, 0, gettext ("%s:%Zd: unterminated string at end "
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"of line"), LD.filename, LD.line_no);
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/* NOTREACHED */
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}
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if (char_val > 0)
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/* Unknown characters are simply not stored. */
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last += char_to_utf (last, char_val);
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else
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{
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char tmp[LD.buf_ptr - pre + 1];
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memcpy (tmp, &LD.buf[pre], LD.buf_ptr - pre);
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tmp[LD.buf_ptr - pre] = '\0';
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error (0, 0, gettext ("%s:%Zd: character `%s' not defined"),
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LD.filename, LD.line_no, tmp);
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}
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}
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if (LD.buf[LD.buf_ptr] != '\0')
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++LD.buf_ptr;
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*last = '\0';
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*token = LD.strbuf;
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*token_len = last - LD.strbuf;
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retval = TOK_STRING;
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}
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else if (LD.buf[LD.buf_ptr] == '.' && LD.buf[LD.buf_ptr + 1] == '.'
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&& LD.buf[LD.buf_ptr + 2] == '.')
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{
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LD.buf_ptr += 3;
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retval = TOK_ELLIPSIS;
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}
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else if (LD.buf[LD.buf_ptr] == LD.escape_char)
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{
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char *endp;
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++LD.buf_ptr;
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switch (LD.buf[LD.buf_ptr])
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{
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case 'x':
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if (isdigit (LD.buf[++LD.buf_ptr]))
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{
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retval = strtol (&LD.buf[LD.buf_ptr], &endp, 16);
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if (endp - (LD.buf + LD.buf_ptr) < 2 || retval > 255)
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retval = 'x';
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else
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LD.buf_ptr = endp - LD.buf;
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}
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else
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retval = 'x';
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break;
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case 'd':
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if (isdigit (LD.buf[++LD.buf_ptr]))
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{
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retval = strtol (&LD.buf[LD.buf_ptr], &endp, 10);
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if (endp - (LD.buf + LD.buf_ptr) < 2 || retval > 255)
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retval = 'd';
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else
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LD.buf_ptr = endp - LD.buf;
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}
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else
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retval = 'd';
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break;
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case '0'...'9':
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retval = strtol (&LD.buf[LD.buf_ptr], &endp, 8);
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if (endp - (LD.buf + LD.buf_ptr) < 2 || retval > 255)
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retval = LD.buf[LD.buf_ptr++];
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else
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LD.buf_ptr = endp - LD.buf;
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break;
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case 'a':
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retval = '\a';
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++LD.buf_ptr;
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break;
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case 'b':
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retval = '\b';
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++LD.buf_ptr;
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break;
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case 'f':
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retval = '\f';
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++LD.buf_ptr;
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break;
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case 'n':
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retval = '\n';
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++LD.buf_ptr;
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break;
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case 'r':
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retval = '\r';
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++LD.buf_ptr;
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break;
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case 't':
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retval = '\t';
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++LD.buf_ptr;
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break;
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case 'v':
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retval = '\v';
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++LD.buf_ptr;
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break;
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default:
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retval = LD.buf[LD.buf_ptr++];
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break;
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}
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}
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else if (isdigit (LD.buf[LD.buf_ptr]))
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{
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char *endp;
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*token_len = strtol (&LD.buf[LD.buf_ptr], &endp, 10);
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LD.buf_ptr = endp - LD.buf;
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retval = TOK_NUMBER;
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}
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else if (LD.buf[LD.buf_ptr] == '-' && LD.buf[LD.buf_ptr + 1] == '1')
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{
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LD.buf_ptr += 2;
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retval = TOK_MINUS1;
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}
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else
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{
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int ch = get_char (); /* token, token_len); */
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if (ch != -1)
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{
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*token_len = ch;
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retval = TOK_CHAR;
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}
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else
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retval = TOK_ILL_CHAR;
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}
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/* Ignore white space. */
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while (isspace (LD.buf[LD.buf_ptr]))
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++LD.buf_ptr;
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}
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while (start_again != 0);
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++LD.returned_tokens;
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return retval;
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}
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/* Code a character with UTF-8 if the character map has multi-byte
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characters. */
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int
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char_to_utf (char *buf, int char_val)
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{
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if (charmap_data.mb_cur_max == 1)
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{
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*buf++ = char_val;
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return 1;
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}
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else
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{
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/* The number of bits coded in each character. */
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#define CBPC 6
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static struct coding_tab
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{
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int mask;
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int val;
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}
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tab[] =
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{
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{ 0x7f, 0x00 },
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{ 0x7ff, 0xc0 },
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{ 0xffff, 0xe0 },
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{ 0x1fffff, 0xf0 },
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{ 0x3ffffff, 0xf8 },
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{ 0x7fffffff, 0xfc },
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{ 0, }
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};
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struct coding_tab *t;
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int c;
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int cnt = 1;
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for (t = tab; char_val > t->mask; ++t, ++cnt)
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;
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c = cnt;
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buf += cnt;
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while (c > 1)
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{
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*--buf = 0x80 | (char_val & ((1 << CBPC) - 1));
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char_val >>= CBPC;
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--c;
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}
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*--buf = t->val | char_val;
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return cnt;
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}
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}
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/* Ignore rest of line upto ENDOFLINE token, starting with given token.
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If WARN_FLAG is set warn about any token but ENDOFLINE. */
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void
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ignore_to_eol (int token, int warn_flag)
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{
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if (token == TOK_ENDOFLINE)
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return;
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if (LD.buf[LD.buf_ptr] != '\0' && warn_flag)
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error (0, 0, gettext ("%s:%Zd: trailing garbage at end of line"),
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locfile_data.filename, locfile_data.line_no);
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while (LD.continue_line)
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{
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LD.continue_line = 0;
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/* Increment line number counter. */
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++LD.line_no;
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if (fgets (LD.buf, LD.bufsize, stdin) != NULL)
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{
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/* We now have to look whether this line is continued and
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whether it at all fits into our buffer. */
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int linelen = strlen (LD.buf);
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if (linelen == LD.bufsize - 1)
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/* The did not fit into the buffer. */
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error (2, 0, gettext ("%s:%Zd: line too long; use `getconf "
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"LINE_MAX' to get the current maximum "
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"line length"), LD.filename, LD.line_no);
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/* Remove '\n' at end of line. */
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if (LD.buf[linelen - 1] == '\n')
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--linelen;
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if (LD.buf[linelen - 1] == LD.escape_char)
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LD.continue_line = 1;
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}
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}
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/* This causes to begin the next line. */
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LD.buf_ptr = LD.bufsize;
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}
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/* Return the value of the character at the beginning of the input buffer.
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Symbolic character constants are expanded. */
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static int
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get_char (void)
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{
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if (LD.buf[LD.buf_ptr] == '<')
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/* This is a symbolic character name. */
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{
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int char_val;
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char *startp = LD.buf + (++LD.buf_ptr);
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char *endp = startp;
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while (LD.buf[LD.buf_ptr] != '>' && isprint (LD.buf[LD.buf_ptr]))
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{
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if (LD.buf[LD.buf_ptr] == '\0'
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|| (LD.buf[LD.buf_ptr] == LD.escape_char
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&& LD.buf[++LD.buf_ptr] == '\0'))
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break;
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*endp++ = LD.buf[LD.buf_ptr++];
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}
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if (LD.buf[LD.buf_ptr] != '>' && LD.buf[LD.buf_ptr] == '\0')
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{
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error (0, 0, gettext ("%s:%Zd: end of line in character symbol"),
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LD.filename, LD.line_no);
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if (startp == endp)
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return -1;
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}
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else
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++LD.buf_ptr;
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char_val = find_char (startp, endp - startp);
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if (char_val == -1 && verbose != 0 && reject_new_char != 0)
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{
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/* Locale defintions are often given very general. Missing
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characters are only reported when explicitely requested. */
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char tmp[endp - startp + 3];
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tmp[0] = '<';
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|
memcpy (tmp + 1, startp, endp - startp);
|
|
tmp[endp - startp + 1] = '>';
|
|
tmp[endp - startp + 2] = '\0';
|
|
|
|
error (0, 0, gettext ("%s:%Zd: character `%s' not defined"),
|
|
LD.filename, LD.line_no, tmp);
|
|
}
|
|
|
|
return char_val;
|
|
}
|
|
else
|
|
return (int) LD.buf[LD.buf_ptr++];
|
|
}
|
|
|
|
/*
|
|
* Local Variables:
|
|
* mode:c
|
|
* c-basic-offset:2
|
|
* End:
|
|
*/
|