vasilito
facf0c92e0
Red Bear OS is a full fork. All sources must be available from git clone with zero network access. Removed gitignore rules that excluded fetched source trees under recipes/*/source/, local/recipes/kde/*/source/, local/recipes/qt/*/source/, and vendor source trees. Build artifacts (target/, build/, source.tar, *.o, *.so) remain excluded. 127291 files added — kernel, relibc, base, bootloader, pkgar, all KDE/Qt frameworks, mesa, wayland, DRM drivers, and every other recipe source.
1645 lines
49 KiB
C
1645 lines
49 KiB
C
/* xgettext PHP backend.
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Copyright (C) 2001-2003, 2005-2010, 2014, 2018-2023 Free Software Foundation, Inc.
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This file was written by Bruno Haible <bruno@clisp.org>, 2002.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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/* Specification. */
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#include "x-php.h"
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#include <errno.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include "attribute.h"
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#include "message.h"
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#include "rc-str-list.h"
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#include "xgettext.h"
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#include "xg-pos.h"
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#include "xg-mixed-string.h"
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#include "xg-arglist-context.h"
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#include "xg-arglist-callshape.h"
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#include "xg-arglist-parser.h"
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#include "xg-message.h"
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#include "error.h"
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#include "error-progname.h"
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#include "xalloc.h"
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#include "gettext.h"
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#define _(s) gettext(s)
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#define SIZEOF(a) (sizeof(a) / sizeof(a[0]))
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/* The PHP syntax is defined in phpdoc/manual/langref.html.
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See also php-4.1.0/Zend/zend_language_scanner.l
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and php-4.1.0/Zend/zend_language_parser.y.
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Note that variable and function names can contain bytes in the range
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0x7f..0xff; see
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http://www.php.net/manual/en/language.variables.php
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http://www.php.net/manual/en/language.functions.php */
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/* ====================== Keyword set customization. ====================== */
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/* If true extract all strings. */
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static bool extract_all = false;
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static hash_table keywords;
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static bool default_keywords = true;
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void
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x_php_extract_all ()
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{
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extract_all = true;
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}
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void
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x_php_keyword (const char *name)
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{
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if (name == NULL)
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default_keywords = false;
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else
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{
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const char *end;
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struct callshape shape;
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const char *colon;
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if (keywords.table == NULL)
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hash_init (&keywords, 100);
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split_keywordspec (name, &end, &shape);
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/* The characters between name and end should form a valid C identifier.
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A colon means an invalid parse in split_keywordspec(). */
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colon = strchr (name, ':');
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if (colon == NULL || colon >= end)
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insert_keyword_callshape (&keywords, name, end - name, &shape);
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}
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}
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/* Finish initializing the keywords hash table.
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Called after argument processing, before each file is processed. */
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static void
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init_keywords ()
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{
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if (default_keywords)
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{
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/* When adding new keywords here, also update the documentation in
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xgettext.texi! */
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x_php_keyword ("_");
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x_php_keyword ("gettext");
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x_php_keyword ("dgettext:2");
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x_php_keyword ("dcgettext:2");
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/* The following were added in PHP 4.2.0. */
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x_php_keyword ("ngettext:1,2");
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x_php_keyword ("dngettext:2,3");
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x_php_keyword ("dcngettext:2,3");
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default_keywords = false;
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}
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}
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void
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init_flag_table_php ()
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{
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xgettext_record_flag ("_:1:pass-php-format");
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xgettext_record_flag ("gettext:1:pass-php-format");
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xgettext_record_flag ("dgettext:2:pass-php-format");
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xgettext_record_flag ("dcgettext:2:pass-php-format");
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xgettext_record_flag ("ngettext:1:pass-php-format");
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xgettext_record_flag ("ngettext:2:pass-php-format");
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xgettext_record_flag ("dngettext:2:pass-php-format");
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xgettext_record_flag ("dngettext:3:pass-php-format");
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xgettext_record_flag ("dcngettext:2:pass-php-format");
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xgettext_record_flag ("dcngettext:3:pass-php-format");
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xgettext_record_flag ("sprintf:1:php-format");
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xgettext_record_flag ("printf:1:php-format");
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}
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/* ======================== Reading of characters. ======================== */
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/* The input file stream. */
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static FILE *fp;
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/* 1. line_number handling. */
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static unsigned char phase1_pushback[2];
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static int phase1_pushback_length;
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static int
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phase1_getc ()
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{
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int c;
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if (phase1_pushback_length)
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c = phase1_pushback[--phase1_pushback_length];
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else
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{
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c = getc (fp);
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if (c == EOF)
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{
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if (ferror (fp))
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error (EXIT_FAILURE, errno, _("error while reading \"%s\""),
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real_file_name);
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return EOF;
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}
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}
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if (c == '\n')
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line_number++;
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return c;
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}
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/* Supports 2 characters of pushback. */
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static void
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phase1_ungetc (int c)
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{
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if (c != EOF)
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{
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if (c == '\n')
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--line_number;
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if (phase1_pushback_length == SIZEOF (phase1_pushback))
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abort ();
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phase1_pushback[phase1_pushback_length++] = c;
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}
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}
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/* 2. Ignore HTML sections. They are equivalent to PHP echo commands and
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therefore don't contain translatable strings. */
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static void
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skip_html ()
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{
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for (;;)
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{
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int c = phase1_getc ();
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if (c == EOF)
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return;
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if (c == '<')
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{
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int c2 = phase1_getc ();
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if (c2 == EOF)
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break;
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if (c2 == '?')
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{
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/* <?php is the normal way to enter PHP mode. <? and <?= are
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recognized by PHP depending on a configuration setting. */
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int c3 = phase1_getc ();
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if (c3 != '=')
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phase1_ungetc (c3);
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return;
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}
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if (c2 == '%')
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{
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/* <% and <%= are recognized by PHP depending on a configuration
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setting. */
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int c3 = phase1_getc ();
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if (c3 != '=')
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phase1_ungetc (c3);
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return;
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}
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if (c2 == '<')
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{
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phase1_ungetc (c2);
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continue;
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}
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/* < script language = php >
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< script language = "php" >
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< script language = 'php' >
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are always recognized. */
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while (c2 == ' ' || c2 == '\t' || c2 == '\n' || c2 == '\r')
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c2 = phase1_getc ();
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if (c2 != 's' && c2 != 'S')
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{
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phase1_ungetc (c2);
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continue;
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}
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c2 = phase1_getc ();
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if (c2 != 'c' && c2 != 'C')
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{
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phase1_ungetc (c2);
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continue;
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}
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c2 = phase1_getc ();
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if (c2 != 'r' && c2 != 'R')
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{
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phase1_ungetc (c2);
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continue;
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}
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c2 = phase1_getc ();
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if (c2 != 'i' && c2 != 'I')
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{
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phase1_ungetc (c2);
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continue;
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}
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c2 = phase1_getc ();
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if (c2 != 'p' && c2 != 'P')
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{
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phase1_ungetc (c2);
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continue;
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}
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c2 = phase1_getc ();
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if (c2 != 't' && c2 != 'T')
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{
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phase1_ungetc (c2);
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continue;
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}
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c2 = phase1_getc ();
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if (!(c2 == ' ' || c2 == '\t' || c2 == '\n' || c2 == '\r'))
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{
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phase1_ungetc (c2);
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continue;
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}
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do
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c2 = phase1_getc ();
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while (c2 == ' ' || c2 == '\t' || c2 == '\n' || c2 == '\r');
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if (c2 != 'l' && c2 != 'L')
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{
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phase1_ungetc (c2);
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continue;
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}
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c2 = phase1_getc ();
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if (c2 != 'a' && c2 != 'A')
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{
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phase1_ungetc (c2);
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continue;
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}
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c2 = phase1_getc ();
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if (c2 != 'n' && c2 != 'N')
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{
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phase1_ungetc (c2);
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continue;
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}
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c2 = phase1_getc ();
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if (c2 != 'g' && c2 != 'G')
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{
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phase1_ungetc (c2);
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continue;
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}
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c2 = phase1_getc ();
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if (c2 != 'u' && c2 != 'U')
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{
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phase1_ungetc (c2);
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continue;
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}
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c2 = phase1_getc ();
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if (c2 != 'a' && c2 != 'A')
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{
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phase1_ungetc (c2);
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continue;
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}
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c2 = phase1_getc ();
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if (c2 != 'g' && c2 != 'G')
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{
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phase1_ungetc (c2);
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continue;
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}
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c2 = phase1_getc ();
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if (c2 != 'e' && c2 != 'E')
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{
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phase1_ungetc (c2);
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continue;
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}
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c2 = phase1_getc ();
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while (c2 == ' ' || c2 == '\t' || c2 == '\n' || c2 == '\r')
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c2 = phase1_getc ();
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if (c2 != '=')
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{
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phase1_ungetc (c2);
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continue;
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}
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c2 = phase1_getc ();
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while (c2 == ' ' || c2 == '\t' || c2 == '\n' || c2 == '\r')
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c2 = phase1_getc ();
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if (c2 == '"')
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{
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c2 = phase1_getc ();
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if (c2 != 'p')
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{
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phase1_ungetc (c2);
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continue;
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}
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c2 = phase1_getc ();
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if (c2 != 'h')
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{
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phase1_ungetc (c2);
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continue;
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}
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c2 = phase1_getc ();
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if (c2 != 'p')
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{
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phase1_ungetc (c2);
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continue;
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}
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c2 = phase1_getc ();
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if (c2 != '"')
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{
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phase1_ungetc (c2);
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continue;
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}
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}
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else if (c2 == '\'')
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{
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c2 = phase1_getc ();
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if (c2 != 'p')
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{
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phase1_ungetc (c2);
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continue;
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}
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c2 = phase1_getc ();
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if (c2 != 'h')
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{
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phase1_ungetc (c2);
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continue;
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}
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c2 = phase1_getc ();
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if (c2 != 'p')
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{
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phase1_ungetc (c2);
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continue;
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}
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c2 = phase1_getc ();
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if (c2 != '\'')
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{
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phase1_ungetc (c2);
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continue;
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}
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}
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else
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{
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if (c2 != 'p')
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{
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phase1_ungetc (c2);
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continue;
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}
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c2 = phase1_getc ();
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if (c2 != 'h')
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{
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phase1_ungetc (c2);
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continue;
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}
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c2 = phase1_getc ();
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if (c2 != 'p')
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{
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phase1_ungetc (c2);
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continue;
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}
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}
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c2 = phase1_getc ();
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while (c2 == ' ' || c2 == '\t' || c2 == '\n' || c2 == '\r')
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c2 = phase1_getc ();
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if (c2 != '>')
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{
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phase1_ungetc (c2);
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continue;
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}
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return;
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}
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}
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}
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#if 0
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static unsigned char phase2_pushback[1];
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static int phase2_pushback_length;
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static int
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phase2_getc ()
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{
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int c;
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if (phase2_pushback_length)
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return phase2_pushback[--phase2_pushback_length];
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c = phase1_getc ();
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switch (c)
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{
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case '?':
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case '%':
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{
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int c2 = phase1_getc ();
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if (c2 == '>')
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{
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/* ?> and %> terminate PHP mode and switch back to HTML mode. */
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skip_html ();
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return ' ';
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}
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phase1_ungetc (c2);
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}
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break;
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case '<':
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{
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int c2 = phase1_getc ();
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/* < / script > terminates PHP mode and switches back to HTML mode. */
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while (c2 == ' ' || c2 == '\t' || c2 == '\n' || c2 == '\r')
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c2 = phase1_getc ();
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if (c2 == '/')
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{
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do
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c2 = phase1_getc ();
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while (c2 == ' ' || c2 == '\t' || c2 == '\n' || c2 == '\r');
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if (c2 == 's' || c2 == 'S')
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{
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c2 = phase1_getc ();
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if (c2 == 'c' || c2 == 'C')
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{
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c2 = phase1_getc ();
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if (c2 == 'r' || c2 == 'R')
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{
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c2 = phase1_getc ();
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if (c2 == 'i' || c2 == 'I')
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{
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c2 = phase1_getc ();
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if (c2 == 'p' || c2 == 'P')
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{
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c2 = phase1_getc ();
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if (c2 == 't' || c2 == 'T')
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{
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do
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c2 = phase1_getc ();
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while (c2 == ' ' || c2 == '\t'
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|| c2 == '\n' || c2 == '\r');
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if (c2 == '>')
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{
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skip_html ();
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return ' ';
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}
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}
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}
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}
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}
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}
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}
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}
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phase1_ungetc (c2);
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}
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break;
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}
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return c;
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}
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static void
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phase2_ungetc (int c)
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{
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if (c != EOF)
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{
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if (phase2_pushback_length == SIZEOF (phase2_pushback))
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abort ();
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phase2_pushback[phase2_pushback_length++] = c;
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}
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}
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#endif
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/* Accumulating comments. */
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static char *buffer;
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static size_t bufmax;
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static size_t buflen;
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static inline void
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comment_start ()
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{
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buflen = 0;
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}
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static inline void
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comment_add (int c)
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{
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if (buflen >= bufmax)
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{
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bufmax = 2 * bufmax + 10;
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buffer = xrealloc (buffer, bufmax);
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}
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buffer[buflen++] = c;
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}
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static inline void
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comment_line_end (size_t chars_to_remove)
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{
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buflen -= chars_to_remove;
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while (buflen >= 1
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&& (buffer[buflen - 1] == ' ' || buffer[buflen - 1] == '\t'))
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--buflen;
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if (chars_to_remove == 0 && buflen >= bufmax)
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{
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bufmax = 2 * bufmax + 10;
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buffer = xrealloc (buffer, bufmax);
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}
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buffer[buflen] = '\0';
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savable_comment_add (buffer);
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}
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|
/* 3. Replace each comment that is not inside a string literal with a
|
|
space character. We need to remember the comment for later, because
|
|
it may be attached to a keyword string. */
|
|
|
|
/* These are for tracking whether comments count as immediately before
|
|
keyword. */
|
|
static int last_comment_line;
|
|
static int last_non_comment_line;
|
|
|
|
static unsigned char phase3_pushback[1];
|
|
static int phase3_pushback_length;
|
|
|
|
static int
|
|
phase3_getc ()
|
|
{
|
|
int lineno;
|
|
int c;
|
|
|
|
if (phase3_pushback_length)
|
|
return phase3_pushback[--phase3_pushback_length];
|
|
|
|
c = phase1_getc ();
|
|
|
|
if (c == '#')
|
|
{
|
|
/* sh comment. */
|
|
bool last_was_qmark = false;
|
|
|
|
comment_start ();
|
|
lineno = line_number;
|
|
for (;;)
|
|
{
|
|
c = phase1_getc ();
|
|
if (c == '\n' || c == EOF)
|
|
{
|
|
comment_line_end (0);
|
|
break;
|
|
}
|
|
if (last_was_qmark && c == '>')
|
|
{
|
|
comment_line_end (1);
|
|
skip_html ();
|
|
break;
|
|
}
|
|
/* We skip all leading white space, but not EOLs. */
|
|
if (!(buflen == 0 && (c == ' ' || c == '\t')))
|
|
comment_add (c);
|
|
last_was_qmark = (c == '?' || c == '%');
|
|
}
|
|
last_comment_line = lineno;
|
|
return '\n';
|
|
}
|
|
else if (c == '/')
|
|
{
|
|
c = phase1_getc ();
|
|
|
|
switch (c)
|
|
{
|
|
default:
|
|
phase1_ungetc (c);
|
|
return '/';
|
|
|
|
case '*':
|
|
{
|
|
/* C comment. */
|
|
bool last_was_star;
|
|
|
|
comment_start ();
|
|
lineno = line_number;
|
|
last_was_star = false;
|
|
for (;;)
|
|
{
|
|
c = phase1_getc ();
|
|
if (c == EOF)
|
|
break;
|
|
/* We skip all leading white space, but not EOLs. */
|
|
if (buflen == 0 && (c == ' ' || c == '\t'))
|
|
continue;
|
|
comment_add (c);
|
|
switch (c)
|
|
{
|
|
case '\n':
|
|
comment_line_end (1);
|
|
comment_start ();
|
|
lineno = line_number;
|
|
last_was_star = false;
|
|
continue;
|
|
|
|
case '*':
|
|
last_was_star = true;
|
|
continue;
|
|
|
|
case '/':
|
|
if (last_was_star)
|
|
{
|
|
comment_line_end (2);
|
|
break;
|
|
}
|
|
FALLTHROUGH;
|
|
|
|
default:
|
|
last_was_star = false;
|
|
continue;
|
|
}
|
|
break;
|
|
}
|
|
last_comment_line = lineno;
|
|
return ' ';
|
|
}
|
|
|
|
case '/':
|
|
{
|
|
/* C++ comment. */
|
|
bool last_was_qmark = false;
|
|
|
|
comment_start ();
|
|
lineno = line_number;
|
|
for (;;)
|
|
{
|
|
c = phase1_getc ();
|
|
if (c == '\n' || c == EOF)
|
|
{
|
|
comment_line_end (0);
|
|
break;
|
|
}
|
|
if (last_was_qmark && c == '>')
|
|
{
|
|
comment_line_end (1);
|
|
skip_html ();
|
|
break;
|
|
}
|
|
/* We skip all leading white space, but not EOLs. */
|
|
if (!(buflen == 0 && (c == ' ' || c == '\t')))
|
|
comment_add (c);
|
|
last_was_qmark = (c == '?' || c == '%');
|
|
}
|
|
last_comment_line = lineno;
|
|
return '\n';
|
|
}
|
|
}
|
|
}
|
|
else
|
|
return c;
|
|
}
|
|
|
|
#ifdef unused
|
|
static void
|
|
phase3_ungetc (int c)
|
|
{
|
|
if (c != EOF)
|
|
{
|
|
if (phase3_pushback_length == SIZEOF (phase3_pushback))
|
|
abort ();
|
|
phase3_pushback[phase3_pushback_length++] = c;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
|
|
/* ========================== Reading of tokens. ========================== */
|
|
|
|
|
|
enum token_type_ty
|
|
{
|
|
token_type_eof,
|
|
token_type_lparen, /* ( */
|
|
token_type_rparen, /* ) */
|
|
token_type_comma, /* , */
|
|
token_type_lbracket, /* [ */
|
|
token_type_rbracket, /* ] */
|
|
token_type_dot, /* . */
|
|
token_type_operator1, /* * / % ++ -- */
|
|
token_type_operator2, /* + - ! ~ @ */
|
|
token_type_string_literal, /* "abc" */
|
|
token_type_symbol, /* symbol, number */
|
|
token_type_other /* misc. operator */
|
|
};
|
|
typedef enum token_type_ty token_type_ty;
|
|
|
|
typedef struct token_ty token_ty;
|
|
struct token_ty
|
|
{
|
|
token_type_ty type;
|
|
char *string; /* for token_type_string_literal, token_type_symbol */
|
|
refcounted_string_list_ty *comment; /* for token_type_string_literal */
|
|
int line_number;
|
|
};
|
|
|
|
|
|
/* Free the memory pointed to by a 'struct token_ty'. */
|
|
static inline void
|
|
free_token (token_ty *tp)
|
|
{
|
|
if (tp->type == token_type_string_literal || tp->type == token_type_symbol)
|
|
free (tp->string);
|
|
if (tp->type == token_type_string_literal)
|
|
drop_reference (tp->comment);
|
|
}
|
|
|
|
|
|
/* 4. Combine characters into tokens. Discard whitespace. */
|
|
|
|
static token_ty phase4_pushback[3];
|
|
static int phase4_pushback_length;
|
|
|
|
static void
|
|
phase4_get (token_ty *tp)
|
|
{
|
|
static char *buffer;
|
|
static int bufmax;
|
|
int bufpos;
|
|
int c;
|
|
|
|
if (phase4_pushback_length)
|
|
{
|
|
*tp = phase4_pushback[--phase4_pushback_length];
|
|
return;
|
|
}
|
|
tp->string = NULL;
|
|
|
|
for (;;)
|
|
{
|
|
tp->line_number = line_number;
|
|
c = phase3_getc ();
|
|
switch (c)
|
|
{
|
|
case EOF:
|
|
tp->type = token_type_eof;
|
|
return;
|
|
|
|
case '\n':
|
|
if (last_non_comment_line > last_comment_line)
|
|
savable_comment_reset ();
|
|
FALLTHROUGH;
|
|
case ' ':
|
|
case '\t':
|
|
case '\r':
|
|
/* Ignore whitespace. */
|
|
continue;
|
|
}
|
|
|
|
last_non_comment_line = tp->line_number;
|
|
|
|
switch (c)
|
|
{
|
|
case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': case 'G':
|
|
case 'H': case 'I': case 'J': case 'K': case 'L': case 'M': case 'N':
|
|
case 'O': case 'P': case 'Q': case 'R': case 'S': case 'T': case 'U':
|
|
case 'V': case 'W': case 'X': case 'Y': case 'Z':
|
|
case '_':
|
|
case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': case 'g':
|
|
case 'h': case 'i': case 'j': case 'k': case 'l': case 'm': case 'n':
|
|
case 'o': case 'p': case 'q': case 'r': case 's': case 't': case 'u':
|
|
case 'v': case 'w': case 'x': case 'y': case 'z':
|
|
case 127: case 128: case 129: case 130: case 131: case 132: case 133:
|
|
case 134: case 135: case 136: case 137: case 138: case 139: case 140:
|
|
case 141: case 142: case 143: case 144: case 145: case 146: case 147:
|
|
case 148: case 149: case 150: case 151: case 152: case 153: case 154:
|
|
case 155: case 156: case 157: case 158: case 159: case 160: case 161:
|
|
case 162: case 163: case 164: case 165: case 166: case 167: case 168:
|
|
case 169: case 170: case 171: case 172: case 173: case 174: case 175:
|
|
case 176: case 177: case 178: case 179: case 180: case 181: case 182:
|
|
case 183: case 184: case 185: case 186: case 187: case 188: case 189:
|
|
case 190: case 191: case 192: case 193: case 194: case 195: case 196:
|
|
case 197: case 198: case 199: case 200: case 201: case 202: case 203:
|
|
case 204: case 205: case 206: case 207: case 208: case 209: case 210:
|
|
case 211: case 212: case 213: case 214: case 215: case 216: case 217:
|
|
case 218: case 219: case 220: case 221: case 222: case 223: case 224:
|
|
case 225: case 226: case 227: case 228: case 229: case 230: case 231:
|
|
case 232: case 233: case 234: case 235: case 236: case 237: case 238:
|
|
case 239: case 240: case 241: case 242: case 243: case 244: case 245:
|
|
case 246: case 247: case 248: case 249: case 250: case 251: case 252:
|
|
case 253: case 254: case 255:
|
|
bufpos = 0;
|
|
for (;;)
|
|
{
|
|
if (bufpos >= bufmax)
|
|
{
|
|
bufmax = 2 * bufmax + 10;
|
|
buffer = xrealloc (buffer, bufmax);
|
|
}
|
|
buffer[bufpos++] = c;
|
|
c = phase1_getc ();
|
|
switch (c)
|
|
{
|
|
case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
|
|
case 'G': case 'H': case 'I': case 'J': case 'K': case 'L':
|
|
case 'M': case 'N': case 'O': case 'P': case 'Q': case 'R':
|
|
case 'S': case 'T': case 'U': case 'V': case 'W': case 'X':
|
|
case 'Y': case 'Z':
|
|
case '_':
|
|
case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
|
|
case 'g': case 'h': case 'i': case 'j': case 'k': case 'l':
|
|
case 'm': case 'n': case 'o': case 'p': case 'q': case 'r':
|
|
case 's': case 't': case 'u': case 'v': case 'w': case 'x':
|
|
case 'y': case 'z':
|
|
case '0': case '1': case '2': case '3': case '4':
|
|
case '5': case '6': case '7': case '8': case '9':
|
|
case 127: case 128: case 129: case 130: case 131: case 132:
|
|
case 133: case 134: case 135: case 136: case 137: case 138:
|
|
case 139: case 140: case 141: case 142: case 143: case 144:
|
|
case 145: case 146: case 147: case 148: case 149: case 150:
|
|
case 151: case 152: case 153: case 154: case 155: case 156:
|
|
case 157: case 158: case 159: case 160: case 161: case 162:
|
|
case 163: case 164: case 165: case 166: case 167: case 168:
|
|
case 169: case 170: case 171: case 172: case 173: case 174:
|
|
case 175: case 176: case 177: case 178: case 179: case 180:
|
|
case 181: case 182: case 183: case 184: case 185: case 186:
|
|
case 187: case 188: case 189: case 190: case 191: case 192:
|
|
case 193: case 194: case 195: case 196: case 197: case 198:
|
|
case 199: case 200: case 201: case 202: case 203: case 204:
|
|
case 205: case 206: case 207: case 208: case 209: case 210:
|
|
case 211: case 212: case 213: case 214: case 215: case 216:
|
|
case 217: case 218: case 219: case 220: case 221: case 222:
|
|
case 223: case 224: case 225: case 226: case 227: case 228:
|
|
case 229: case 230: case 231: case 232: case 233: case 234:
|
|
case 235: case 236: case 237: case 238: case 239: case 240:
|
|
case 241: case 242: case 243: case 244: case 245: case 246:
|
|
case 247: case 248: case 249: case 250: case 251: case 252:
|
|
case 253: case 254: case 255:
|
|
continue;
|
|
|
|
default:
|
|
phase1_ungetc (c);
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
if (bufpos >= bufmax)
|
|
{
|
|
bufmax = 2 * bufmax + 10;
|
|
buffer = xrealloc (buffer, bufmax);
|
|
}
|
|
buffer[bufpos] = 0;
|
|
tp->string = xstrdup (buffer);
|
|
tp->type = token_type_symbol;
|
|
return;
|
|
|
|
case '\'':
|
|
/* Single-quoted string literal. */
|
|
bufpos = 0;
|
|
for (;;)
|
|
{
|
|
c = phase1_getc ();
|
|
if (c == EOF || c == '\'')
|
|
break;
|
|
if (c == '\\')
|
|
{
|
|
c = phase1_getc ();
|
|
if (c != '\\' && c != '\'')
|
|
{
|
|
phase1_ungetc (c);
|
|
c = '\\';
|
|
}
|
|
}
|
|
if (bufpos >= bufmax)
|
|
{
|
|
bufmax = 2 * bufmax + 10;
|
|
buffer = xrealloc (buffer, bufmax);
|
|
}
|
|
buffer[bufpos++] = c;
|
|
}
|
|
if (bufpos >= bufmax)
|
|
{
|
|
bufmax = 2 * bufmax + 10;
|
|
buffer = xrealloc (buffer, bufmax);
|
|
}
|
|
buffer[bufpos] = 0;
|
|
tp->type = token_type_string_literal;
|
|
tp->string = xstrdup (buffer);
|
|
tp->comment = add_reference (savable_comment);
|
|
return;
|
|
|
|
case '"':
|
|
/* Double-quoted string literal. */
|
|
tp->type = token_type_string_literal;
|
|
bufpos = 0;
|
|
for (;;)
|
|
{
|
|
c = phase1_getc ();
|
|
if (c == EOF || c == '"')
|
|
break;
|
|
if (c == '$')
|
|
{
|
|
c = phase1_getc ();
|
|
if ((c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z')
|
|
|| c == '_' || c == '{' || c >= 0x7f)
|
|
{
|
|
/* String with variables. */
|
|
tp->type = token_type_other;
|
|
continue;
|
|
}
|
|
phase1_ungetc (c);
|
|
c = '$';
|
|
}
|
|
if (c == '{')
|
|
{
|
|
c = phase1_getc ();
|
|
if (c == '$')
|
|
{
|
|
/* String with expressions. */
|
|
tp->type = token_type_other;
|
|
continue;
|
|
}
|
|
phase1_ungetc (c);
|
|
c = '{';
|
|
}
|
|
if (c == '\\')
|
|
{
|
|
int n, j;
|
|
|
|
c = phase1_getc ();
|
|
switch (c)
|
|
{
|
|
case '"':
|
|
case '\\':
|
|
case '$':
|
|
break;
|
|
|
|
case '0': case '1': case '2': case '3':
|
|
case '4': case '5': case '6': case '7':
|
|
n = 0;
|
|
for (j = 0; j < 3; ++j)
|
|
{
|
|
n = n * 8 + c - '0';
|
|
c = phase1_getc ();
|
|
switch (c)
|
|
{
|
|
default:
|
|
break;
|
|
|
|
case '0': case '1': case '2': case '3':
|
|
case '4': case '5': case '6': case '7':
|
|
continue;
|
|
}
|
|
break;
|
|
}
|
|
phase1_ungetc (c);
|
|
c = n;
|
|
break;
|
|
|
|
case 'x':
|
|
n = 0;
|
|
for (j = 0; j < 2; ++j)
|
|
{
|
|
c = phase1_getc ();
|
|
switch (c)
|
|
{
|
|
case '0': case '1': case '2': case '3': case '4':
|
|
case '5': case '6': case '7': case '8': case '9':
|
|
n = n * 16 + c - '0';
|
|
break;
|
|
case 'A': case 'B': case 'C': case 'D': case 'E':
|
|
case 'F':
|
|
n = n * 16 + 10 + c - 'A';
|
|
break;
|
|
case 'a': case 'b': case 'c': case 'd': case 'e':
|
|
case 'f':
|
|
n = n * 16 + 10 + c - 'a';
|
|
break;
|
|
default:
|
|
phase1_ungetc (c);
|
|
c = 0;
|
|
break;
|
|
}
|
|
if (c == 0)
|
|
break;
|
|
}
|
|
if (j == 0)
|
|
{
|
|
phase1_ungetc ('x');
|
|
c = '\\';
|
|
}
|
|
else
|
|
c = n;
|
|
break;
|
|
|
|
case 'n':
|
|
c = '\n';
|
|
break;
|
|
case 't':
|
|
c = '\t';
|
|
break;
|
|
case 'r':
|
|
c = '\r';
|
|
break;
|
|
|
|
default:
|
|
phase1_ungetc (c);
|
|
c = '\\';
|
|
break;
|
|
}
|
|
}
|
|
if (bufpos >= bufmax)
|
|
{
|
|
bufmax = 2 * bufmax + 10;
|
|
buffer = xrealloc (buffer, bufmax);
|
|
}
|
|
buffer[bufpos++] = c;
|
|
}
|
|
if (bufpos >= bufmax)
|
|
{
|
|
bufmax = 2 * bufmax + 10;
|
|
buffer = xrealloc (buffer, bufmax);
|
|
}
|
|
buffer[bufpos] = 0;
|
|
if (tp->type == token_type_string_literal)
|
|
{
|
|
tp->string = xstrdup (buffer);
|
|
tp->comment = add_reference (savable_comment);
|
|
}
|
|
return;
|
|
|
|
case '?':
|
|
case '%':
|
|
{
|
|
int c2 = phase1_getc ();
|
|
if (c2 == '>')
|
|
{
|
|
/* ?> and %> terminate PHP mode and switch back to HTML
|
|
mode. */
|
|
skip_html ();
|
|
tp->type = token_type_other;
|
|
}
|
|
else
|
|
{
|
|
phase1_ungetc (c2);
|
|
tp->type = (c == '%' ? token_type_operator1 : token_type_other);
|
|
}
|
|
return;
|
|
}
|
|
|
|
case '(':
|
|
tp->type = token_type_lparen;
|
|
return;
|
|
|
|
case ')':
|
|
tp->type = token_type_rparen;
|
|
return;
|
|
|
|
case ',':
|
|
tp->type = token_type_comma;
|
|
return;
|
|
|
|
case '[':
|
|
tp->type = token_type_lbracket;
|
|
return;
|
|
|
|
case ']':
|
|
tp->type = token_type_rbracket;
|
|
return;
|
|
|
|
case '.':
|
|
tp->type = token_type_dot;
|
|
return;
|
|
|
|
case '*':
|
|
case '/':
|
|
tp->type = token_type_operator1;
|
|
return;
|
|
|
|
case '+':
|
|
case '-':
|
|
{
|
|
int c2 = phase1_getc ();
|
|
if (c2 == c)
|
|
/* ++ or -- */
|
|
tp->type = token_type_operator1;
|
|
else
|
|
/* + or - */
|
|
{
|
|
phase1_ungetc (c2);
|
|
tp->type = token_type_operator2;
|
|
}
|
|
return;
|
|
}
|
|
|
|
case '!':
|
|
case '~':
|
|
case '@':
|
|
tp->type = token_type_operator2;
|
|
return;
|
|
|
|
case '<':
|
|
{
|
|
int c2 = phase1_getc ();
|
|
if (c2 == '<')
|
|
{
|
|
int c3 = phase1_getc ();
|
|
if (c3 == '<')
|
|
{
|
|
int label_start = 0;
|
|
|
|
/* Start of here and now document.
|
|
Parse whitespace, then label, then newline. */
|
|
do
|
|
c = phase3_getc ();
|
|
while (c == ' ' || c == '\t' || c == '\n' || c == '\r');
|
|
|
|
bufpos = 0;
|
|
do
|
|
{
|
|
if (bufpos >= bufmax)
|
|
{
|
|
bufmax = 2 * bufmax + 10;
|
|
buffer = xrealloc (buffer, bufmax);
|
|
}
|
|
buffer[bufpos++] = c;
|
|
c = phase3_getc ();
|
|
}
|
|
while (c != EOF && c != '\n' && c != '\r');
|
|
/* buffer[0..bufpos-1] now contains the label
|
|
(including single or double quotes). */
|
|
|
|
if (*buffer == '\'' || *buffer == '"')
|
|
{
|
|
label_start++;
|
|
bufpos--;
|
|
}
|
|
|
|
/* Now skip the here document. */
|
|
for (;;)
|
|
{
|
|
c = phase1_getc ();
|
|
if (c == EOF)
|
|
break;
|
|
if (c == '\n' || c == '\r')
|
|
{
|
|
int bufidx = label_start;
|
|
|
|
while (bufidx < bufpos)
|
|
{
|
|
c = phase1_getc ();
|
|
if (c == EOF)
|
|
break;
|
|
if (c != buffer[bufidx])
|
|
{
|
|
phase1_ungetc (c);
|
|
break;
|
|
}
|
|
bufidx++;
|
|
}
|
|
if (bufidx == bufpos)
|
|
{
|
|
c = phase1_getc ();
|
|
if (c != ';')
|
|
phase1_ungetc (c);
|
|
c = phase1_getc ();
|
|
if (c == '\n' || c == '\r')
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* FIXME: Ideally we should turn the here document into a
|
|
string literal if it didn't contain $ substitution. And
|
|
we should also respect backslash escape sequences like
|
|
in double-quoted strings. */
|
|
tp->type = token_type_other;
|
|
return;
|
|
}
|
|
phase1_ungetc (c3);
|
|
}
|
|
|
|
/* < / script > terminates PHP mode and switches back to HTML
|
|
mode. */
|
|
while (c2 == ' ' || c2 == '\t' || c2 == '\n' || c2 == '\r')
|
|
c2 = phase1_getc ();
|
|
if (c2 == '/')
|
|
{
|
|
do
|
|
c2 = phase1_getc ();
|
|
while (c2 == ' ' || c2 == '\t' || c2 == '\n' || c2 == '\r');
|
|
if (c2 == 's' || c2 == 'S')
|
|
{
|
|
c2 = phase1_getc ();
|
|
if (c2 == 'c' || c2 == 'C')
|
|
{
|
|
c2 = phase1_getc ();
|
|
if (c2 == 'r' || c2 == 'R')
|
|
{
|
|
c2 = phase1_getc ();
|
|
if (c2 == 'i' || c2 == 'I')
|
|
{
|
|
c2 = phase1_getc ();
|
|
if (c2 == 'p' || c2 == 'P')
|
|
{
|
|
c2 = phase1_getc ();
|
|
if (c2 == 't' || c2 == 'T')
|
|
{
|
|
do
|
|
c2 = phase1_getc ();
|
|
while (c2 == ' ' || c2 == '\t'
|
|
|| c2 == '\n' || c2 == '\r');
|
|
if (c2 == '>')
|
|
{
|
|
skip_html ();
|
|
}
|
|
else
|
|
phase1_ungetc (c2);
|
|
}
|
|
else
|
|
phase1_ungetc (c2);
|
|
}
|
|
else
|
|
phase1_ungetc (c2);
|
|
}
|
|
else
|
|
phase1_ungetc (c2);
|
|
}
|
|
else
|
|
phase1_ungetc (c2);
|
|
}
|
|
else
|
|
phase1_ungetc (c2);
|
|
}
|
|
else
|
|
phase1_ungetc (c2);
|
|
}
|
|
else
|
|
phase1_ungetc (c2);
|
|
|
|
tp->type = token_type_other;
|
|
return;
|
|
}
|
|
|
|
case '`':
|
|
/* Execution operator. */
|
|
default:
|
|
/* We could carefully recognize each of the 2 and 3 character
|
|
operators, but it is not necessary, as we only need to recognize
|
|
gettext invocations. Don't bother. */
|
|
tp->type = token_type_other;
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Supports 3 tokens of pushback. */
|
|
static void
|
|
phase4_unget (token_ty *tp)
|
|
{
|
|
if (tp->type != token_type_eof)
|
|
{
|
|
if (phase4_pushback_length == SIZEOF (phase4_pushback))
|
|
abort ();
|
|
phase4_pushback[phase4_pushback_length++] = *tp;
|
|
}
|
|
}
|
|
|
|
|
|
/* 5. Compile-time optimization of string literal concatenation.
|
|
Combine "string1" . ... . "stringN" to the concatenated string if
|
|
- the token before this expression is none of
|
|
'+' '-' '.' '*' '/' '%' '!' '~' '++' '--' ')' '@'
|
|
(because then the first string could be part of an expression with
|
|
the same or higher precedence as '.', such as an additive,
|
|
multiplicative, negation, preincrement, or cast expression),
|
|
- the token after this expression is none of
|
|
'*' '/' '%' '++' '--'
|
|
(because then the last string could be part of an expression with
|
|
higher precedence as '.', such as a multiplicative or postincrement
|
|
expression). */
|
|
|
|
static token_type_ty phase5_last;
|
|
|
|
static void
|
|
x_php_lex (token_ty *tp)
|
|
{
|
|
phase4_get (tp);
|
|
if (tp->type == token_type_string_literal
|
|
&& !(phase5_last == token_type_dot
|
|
|| phase5_last == token_type_operator1
|
|
|| phase5_last == token_type_operator2
|
|
|| phase5_last == token_type_rparen))
|
|
{
|
|
char *sum = tp->string;
|
|
size_t sum_len = strlen (sum);
|
|
|
|
for (;;)
|
|
{
|
|
token_ty token2;
|
|
|
|
phase4_get (&token2);
|
|
if (token2.type == token_type_dot)
|
|
{
|
|
token_ty token3;
|
|
|
|
phase4_get (&token3);
|
|
if (token3.type == token_type_string_literal)
|
|
{
|
|
token_ty token_after;
|
|
|
|
phase4_get (&token_after);
|
|
if (token_after.type != token_type_operator1)
|
|
{
|
|
char *addend = token3.string;
|
|
size_t addend_len = strlen (addend);
|
|
|
|
sum = (char *) xrealloc (sum, sum_len + addend_len + 1);
|
|
memcpy (sum + sum_len, addend, addend_len + 1);
|
|
sum_len += addend_len;
|
|
|
|
phase4_unget (&token_after);
|
|
free_token (&token3);
|
|
free_token (&token2);
|
|
continue;
|
|
}
|
|
phase4_unget (&token_after);
|
|
}
|
|
phase4_unget (&token3);
|
|
}
|
|
phase4_unget (&token2);
|
|
break;
|
|
}
|
|
tp->string = sum;
|
|
}
|
|
phase5_last = tp->type;
|
|
}
|
|
|
|
|
|
/* ========================= Extracting strings. ========================== */
|
|
|
|
|
|
/* Context lookup table. */
|
|
static flag_context_list_table_ty *flag_context_list_table;
|
|
|
|
|
|
/* Maximum supported nesting depth. */
|
|
#define MAX_NESTING_DEPTH 1000
|
|
|
|
/* Current nesting depths. */
|
|
static int paren_nesting_depth;
|
|
static int bracket_nesting_depth;
|
|
|
|
|
|
/* The file is broken into tokens. Scan the token stream, looking for
|
|
a keyword, followed by a left paren, followed by a string. When we
|
|
see this sequence, we have something to remember. We assume we are
|
|
looking at a valid C or C++ program, and leave the complaints about
|
|
the grammar to the compiler.
|
|
|
|
Normal handling: Look for
|
|
keyword ( ... msgid ... )
|
|
Plural handling: Look for
|
|
keyword ( ... msgid ... msgid_plural ... )
|
|
|
|
We use recursion because the arguments before msgid or between msgid
|
|
and msgid_plural can contain subexpressions of the same form. */
|
|
|
|
|
|
/* Extract messages until the next balanced closing parenthesis or bracket.
|
|
Extracted messages are added to MLP.
|
|
DELIM can be either token_type_rparen or token_type_rbracket, or
|
|
token_type_eof to accept both.
|
|
Return true upon eof, false upon closing parenthesis or bracket. */
|
|
static bool
|
|
extract_balanced (message_list_ty *mlp,
|
|
token_type_ty delim,
|
|
flag_context_ty outer_context,
|
|
flag_context_list_iterator_ty context_iter,
|
|
struct arglist_parser *argparser)
|
|
{
|
|
/* Current argument number. */
|
|
int arg = 1;
|
|
/* 0 when no keyword has been seen. 1 right after a keyword is seen. */
|
|
int state;
|
|
/* Parameters of the keyword just seen. Defined only in state 1. */
|
|
const struct callshapes *next_shapes = NULL;
|
|
/* Context iterator that will be used if the next token is a '('. */
|
|
flag_context_list_iterator_ty next_context_iter =
|
|
passthrough_context_list_iterator;
|
|
/* Current context. */
|
|
flag_context_ty inner_context =
|
|
inherited_context (outer_context,
|
|
flag_context_list_iterator_advance (&context_iter));
|
|
|
|
/* Start state is 0. */
|
|
state = 0;
|
|
|
|
for (;;)
|
|
{
|
|
token_ty token;
|
|
|
|
x_php_lex (&token);
|
|
switch (token.type)
|
|
{
|
|
case token_type_symbol:
|
|
{
|
|
void *keyword_value;
|
|
|
|
if (hash_find_entry (&keywords, token.string, strlen (token.string),
|
|
&keyword_value)
|
|
== 0)
|
|
{
|
|
next_shapes = (const struct callshapes *) keyword_value;
|
|
state = 1;
|
|
}
|
|
else
|
|
state = 0;
|
|
}
|
|
next_context_iter =
|
|
flag_context_list_iterator (
|
|
flag_context_list_table_lookup (
|
|
flag_context_list_table,
|
|
token.string, strlen (token.string)));
|
|
free (token.string);
|
|
continue;
|
|
|
|
case token_type_lparen:
|
|
if (++paren_nesting_depth > MAX_NESTING_DEPTH)
|
|
{
|
|
error_with_progname = false;
|
|
error (EXIT_FAILURE, 0, _("%s:%d: error: too many open parentheses"),
|
|
logical_file_name, line_number);
|
|
}
|
|
if (extract_balanced (mlp, token_type_rparen,
|
|
inner_context, next_context_iter,
|
|
arglist_parser_alloc (mlp,
|
|
state ? next_shapes : NULL)))
|
|
{
|
|
arglist_parser_done (argparser, arg);
|
|
return true;
|
|
}
|
|
paren_nesting_depth--;
|
|
next_context_iter = null_context_list_iterator;
|
|
state = 0;
|
|
continue;
|
|
|
|
case token_type_rparen:
|
|
if (delim == token_type_rparen || delim == token_type_eof)
|
|
{
|
|
arglist_parser_done (argparser, arg);
|
|
return false;
|
|
}
|
|
next_context_iter = null_context_list_iterator;
|
|
state = 0;
|
|
continue;
|
|
|
|
case token_type_comma:
|
|
arg++;
|
|
inner_context =
|
|
inherited_context (outer_context,
|
|
flag_context_list_iterator_advance (
|
|
&context_iter));
|
|
next_context_iter = passthrough_context_list_iterator;
|
|
state = 0;
|
|
continue;
|
|
|
|
case token_type_lbracket:
|
|
if (++bracket_nesting_depth > MAX_NESTING_DEPTH)
|
|
{
|
|
error_with_progname = false;
|
|
error (EXIT_FAILURE, 0, _("%s:%d: error: too many open brackets"),
|
|
logical_file_name, line_number);
|
|
}
|
|
if (extract_balanced (mlp, token_type_rbracket,
|
|
null_context, null_context_list_iterator,
|
|
arglist_parser_alloc (mlp, NULL)))
|
|
{
|
|
arglist_parser_done (argparser, arg);
|
|
return true;
|
|
}
|
|
bracket_nesting_depth--;
|
|
next_context_iter = null_context_list_iterator;
|
|
state = 0;
|
|
continue;
|
|
|
|
case token_type_rbracket:
|
|
if (delim == token_type_rbracket || delim == token_type_eof)
|
|
{
|
|
arglist_parser_done (argparser, arg);
|
|
return false;
|
|
}
|
|
next_context_iter = null_context_list_iterator;
|
|
state = 0;
|
|
continue;
|
|
|
|
case token_type_string_literal:
|
|
{
|
|
lex_pos_ty pos;
|
|
pos.file_name = logical_file_name;
|
|
pos.line_number = token.line_number;
|
|
|
|
if (extract_all)
|
|
remember_a_message (mlp, NULL, token.string, false, false,
|
|
inner_context, &pos,
|
|
NULL, token.comment, false);
|
|
else
|
|
{
|
|
mixed_string_ty *ms =
|
|
mixed_string_alloc_simple (token.string, lc_string,
|
|
pos.file_name, pos.line_number);
|
|
free (token.string);
|
|
arglist_parser_remember (argparser, arg, ms, inner_context,
|
|
pos.file_name, pos.line_number,
|
|
token.comment, false);
|
|
}
|
|
drop_reference (token.comment);
|
|
}
|
|
next_context_iter = null_context_list_iterator;
|
|
state = 0;
|
|
continue;
|
|
|
|
case token_type_dot:
|
|
case token_type_operator1:
|
|
case token_type_operator2:
|
|
case token_type_other:
|
|
next_context_iter = null_context_list_iterator;
|
|
state = 0;
|
|
continue;
|
|
|
|
case token_type_eof:
|
|
arglist_parser_done (argparser, arg);
|
|
return true;
|
|
|
|
default:
|
|
abort ();
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
void
|
|
extract_php (FILE *f,
|
|
const char *real_filename, const char *logical_filename,
|
|
flag_context_list_table_ty *flag_table,
|
|
msgdomain_list_ty *mdlp)
|
|
{
|
|
message_list_ty *mlp = mdlp->item[0]->messages;
|
|
|
|
fp = f;
|
|
real_file_name = real_filename;
|
|
logical_file_name = xstrdup (logical_filename);
|
|
line_number = 1;
|
|
|
|
phase1_pushback_length = 0;
|
|
#if 0
|
|
phase2_pushback_length = 0;
|
|
#endif
|
|
|
|
last_comment_line = -1;
|
|
last_non_comment_line = -1;
|
|
|
|
phase3_pushback_length = 0;
|
|
phase4_pushback_length = 0;
|
|
|
|
phase5_last = token_type_eof;
|
|
|
|
flag_context_list_table = flag_table;
|
|
paren_nesting_depth = 0;
|
|
bracket_nesting_depth = 0;
|
|
|
|
init_keywords ();
|
|
|
|
/* Initial mode is HTML mode, not PHP mode. */
|
|
skip_html ();
|
|
|
|
/* Eat tokens until eof is seen. When extract_balanced returns
|
|
due to an unbalanced closing parenthesis, just restart it. */
|
|
while (!extract_balanced (mlp, token_type_eof,
|
|
null_context, null_context_list_iterator,
|
|
arglist_parser_alloc (mlp, NULL)))
|
|
;
|
|
|
|
/* Close scanner. */
|
|
fp = NULL;
|
|
real_file_name = NULL;
|
|
logical_file_name = NULL;
|
|
line_number = 0;
|
|
}
|