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authorBruno Haible <bruno@clisp.org>2003-02-14 14:28:17 +0000
committerBruno Haible <bruno@clisp.org>2009-06-23 12:09:41 +0200
commit64054aa6625ba0f0fd1a9795246f3f61604d2370 (patch)
tree70b707b930d0b972b291d36cf723724e19c352df /src
parent70cff3e096c8303336cfc214cbef72ac1a251c8c (diff)
downloadexternal_gettext-64054aa6625ba0f0fd1a9795246f3f61604d2370.zip
external_gettext-64054aa6625ba0f0fd1a9795246f3f61604d2370.tar.gz
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Move src/x-ycp.c to gettext-tools/src/x-ycp.c.
Diffstat (limited to 'src')
-rw-r--r--src/x-ycp.c609
1 files changed, 0 insertions, 609 deletions
diff --git a/src/x-ycp.c b/src/x-ycp.c
deleted file mode 100644
index aa2c36f..0000000
--- a/src/x-ycp.c
+++ /dev/null
@@ -1,609 +0,0 @@
-/* xgettext YCP backend.
- Copyright (C) 2001-2002 Free Software Foundation, Inc.
-
- This file was written by Bruno Haible <haible@clisp.cons.org>, 2001.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software Foundation,
- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
-
-#ifdef HAVE_CONFIG_H
-# include "config.h"
-#endif
-
-#include <ctype.h>
-#include <errno.h>
-#include <limits.h>
-#include <stdbool.h>
-#include <stdio.h>
-#include <stdlib.h>
-
-#include "message.h"
-#include "x-ycp.h"
-#include "xgettext.h"
-#include "error.h"
-#include "xmalloc.h"
-#include "exit.h"
-#include "gettext.h"
-
-#define _(s) gettext(s)
-
-
-/* The YCP syntax is defined in libycp/doc/syntax.html.
- See also libycp/src/scanner.ll. */
-
-enum token_type_ty
-{
- token_type_eof,
- token_type_lparen, /* ( */
- token_type_rparen, /* ) */
- token_type_comma, /* , */
- token_type_i18n, /* _( */
- 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 */
- int line_number;
-};
-
-
-/* Real filename, used in error messages about the input file. */
-static const char *real_file_name;
-
-/* Logical filename and line number, used to label the extracted messages. */
-static char *logical_file_name;
-static int line_number;
-static int char_in_line;
-
-/* The input file stream. */
-static FILE *fp;
-
-/* These are for tracking whether comments count as immediately before
- keyword. */
-static int last_comment_line;
-static int last_non_comment_line;
-
-
-/* 1. line_number handling. */
-
-static int
-phase1_getc ()
-{
- int c = getc (fp);
-
- if (c == EOF)
- {
- if (ferror (fp))
- error (EXIT_FAILURE, errno, _("error while reading \"%s\""),
- real_file_name);
- return EOF;
- }
-
- if (c == '\n')
- {
- line_number++;
- char_in_line = 0;
- }
- else
- char_in_line++;
-
- return c;
-}
-
-static void
-phase1_ungetc (int c)
-{
- if (c != EOF)
- {
- if (c == '\n')
- {
- --line_number;
- char_in_line = INT_MAX;
- }
- else
- --char_in_line;
-
- ungetc (c, fp);
- }
-}
-
-
-/* 2. Replace each comment that is not inside a character constant or
- string literal with a space character. We need to remember the
- comment for later, because it may be attached to a keyword string.
- YCP comments can be in C comment syntax, C++ comment syntax or sh
- comment syntax. */
-
-static unsigned char phase2_pushback[1];
-static int phase2_pushback_length;
-
-static int
-phase2_getc ()
-{
- static char *buffer;
- static size_t bufmax;
- size_t buflen;
- int lineno;
- int c;
- bool last_was_star;
-
- if (phase2_pushback_length)
- return phase2_pushback[--phase2_pushback_length];
-
- if (char_in_line == 0)
- {
- /* Eat whitespace, to recognize ^[\t ]*# pattern. */
- do
- c = phase1_getc ();
- while (c == '\t' || c == ' ');
-
- if (c == '#')
- {
- /* sh comment. */
- buflen = 0;
- lineno = line_number;
- for (;;)
- {
- c = phase1_getc ();
- if (c == '\n' || c == EOF)
- break;
- if (buflen >= bufmax)
- {
- bufmax += 100;
- buffer = xrealloc (buffer, bufmax);
- }
- buffer[buflen++] = c;
- }
- if (buflen >= bufmax)
- {
- bufmax += 100;
- buffer = xrealloc (buffer, bufmax);
- }
- buffer[buflen] = '\0';
- xgettext_comment_add (buffer);
- last_comment_line = lineno;
- return '\n';
- }
- }
- else
- c = phase1_getc ();
-
- if (c == '/')
- {
- c = phase1_getc ();
-
- switch (c)
- {
- default:
- phase1_ungetc (c);
- return '/';
-
- case '*':
- /* C comment. */
- buflen = 0;
- 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 && isspace (c) && c != '\n')
- continue;
- if (buflen >= bufmax)
- {
- bufmax += 100;
- buffer = xrealloc (buffer, bufmax);
- }
- buffer[buflen++] = c;
- switch (c)
- {
- case '\n':
- --buflen;
- while (buflen >= 1
- && (buffer[buflen - 1] == ' '
- || buffer[buflen - 1] == '\t'))
- --buflen;
- buffer[buflen] = '\0';
- xgettext_comment_add (buffer);
- buflen = 0;
- lineno = line_number;
- last_was_star = false;
- continue;
-
- case '*':
- last_was_star = true;
- continue;
-
- case '/':
- if (last_was_star)
- {
- buflen -= 2;
- while (buflen >= 1
- && (buffer[buflen - 1] == ' '
- || buffer[buflen - 1] == '\t'))
- --buflen;
- buffer[buflen] = '\0';
- xgettext_comment_add (buffer);
- break;
- }
- /* FALLTHROUGH */
-
- default:
- last_was_star = false;
- continue;
- }
- break;
- }
- last_comment_line = lineno;
- return ' ';
-
- case '/':
- /* C++ comment. */
- buflen = 0;
- lineno = line_number;
- for (;;)
- {
- c = phase1_getc ();
- if (c == '\n' || c == EOF)
- break;
- if (buflen >= bufmax)
- {
- bufmax += 100;
- buffer = xrealloc (buffer, bufmax);
- }
- buffer[buflen++] = c;
- }
- if (buflen >= bufmax)
- {
- bufmax += 100;
- buffer = xrealloc (buffer, bufmax);
- }
- buffer[buflen] = '\0';
- xgettext_comment_add (buffer);
- last_comment_line = lineno;
- return '\n';
- }
- }
- else
- return c;
-}
-
-static void
-phase2_ungetc (int c)
-{
- if (c != EOF)
- phase2_pushback[phase2_pushback_length++] = c;
-}
-
-
-/* 7. Replace escape sequences within character strings with their
- single character equivalents. */
-
-#define P7_QUOTES (1000 + '"')
-
-static int
-phase7_getc ()
-{
- int c;
-
- for (;;)
- {
- /* Use phase 1, because phase 2 elides comments. */
- c = phase1_getc ();
-
- if (c == '"')
- return P7_QUOTES;
- if (c != '\\')
- return c;
- c = phase1_getc ();
- if (c != '\n')
- switch (c)
- {
- case 'b':
- return '\b';
- case 'f':
- return '\f';
- case 'n':
- return '\n';
- case 'r':
- return '\r';
- case 't':
- return '\t';
-
- /* FIXME: What is the octal escape syntax?
- syntax.html says: [0] [0-7]+
- scanner.ll says: [0-7] [0-7] [0-7]
- */
-#if 0
- case '0': case '1': case '2': case '3':
- case '4': case '5': case '6': case '7':
- {
- int n, j;
-
- 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);
- return n;
- }
-#endif
-
- default:
- return c;
- }
- }
-}
-
-
-/* Combine characters into tokens. Discard whitespace. */
-
-static void
-x_ycp_lex (token_ty *tp)
-{
- static char *buffer;
- static int bufmax;
- int bufpos;
- int c;
-
- for (;;)
- {
- tp->line_number = line_number;
- c = phase2_getc ();
-
- switch (c)
- {
- case EOF:
- tp->type = token_type_eof;
- return;
-
- case '\n':
- if (last_non_comment_line > last_comment_line)
- xgettext_comment_reset ();
- /* FALLTHROUGH */
- case '\r':
- case '\t':
- case ' ':
- /* Ignore whitespace and comments. */
- 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 '0': case '1': case '2': case '3': case '4':
- case '5': case '6': case '7': case '8': case '9':
- /* Symbol, or part of a number. */
- bufpos = 0;
- for (;;)
- {
- if (bufpos >= bufmax)
- {
- bufmax += 100;
- buffer = xrealloc (buffer, bufmax);
- }
- buffer[bufpos++] = c;
- c = phase2_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':
- continue;
- default:
- if (bufpos == 1 && buffer[0] == '_' && c == '(')
- {
- tp->type = token_type_i18n;
- return;
- }
- phase2_ungetc (c);
- break;
- }
- break;
- }
- if (bufpos >= bufmax)
- {
- bufmax += 100;
- buffer = xrealloc (buffer, bufmax);
- }
- buffer[bufpos] = '\0';
- tp->string = xstrdup (buffer);
- tp->type = token_type_symbol;
- return;
-
- case '"':
- bufpos = 0;
- for (;;)
- {
- c = phase7_getc ();
- if (c == EOF || c == P7_QUOTES)
- break;
- if (bufpos >= bufmax)
- {
- bufmax += 100;
- buffer = xrealloc (buffer, bufmax);
- }
- buffer[bufpos++] = c;
- }
- if (bufpos >= bufmax)
- {
- bufmax += 100;
- buffer = xrealloc (buffer, bufmax);
- }
- buffer[bufpos] = '\0';
- tp->string = xstrdup (buffer);
- tp->type = token_type_string_literal;
- return;
-
- case '(':
- tp->type = token_type_lparen;
- return;
-
- case ')':
- tp->type = token_type_rparen;
- return;
-
- case ',':
- tp->type = token_type_comma;
- return;
-
- 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;
- }
- }
-}
-
-
-void
-extract_ycp (FILE *f,
- const char *real_filename, const char *logical_filename,
- msgdomain_list_ty *mdlp)
-{
- message_list_ty *mlp = mdlp->item[0]->messages;
- int state;
- message_ty *plural_mp = NULL; /* defined only when in states 1 and 2 */
-
- /* The file is broken into tokens.
- Normal handling: Look for
- [A] _( [B] msgid ... )
- Plural handling: Look for
- [A] _( [B] msgid [C] , [D] msgid_plural ... )
- At point [A]: state == 0.
- At point [B]: state == 1, plural_mp == NULL.
- At point [C]: state == 2, plural_mp != NULL.
- At point [D]: state == 1, plural_mp != NULL. */
-
- fp = f;
- real_file_name = real_filename;
- logical_file_name = xstrdup (logical_filename);
- line_number = 1;
- char_in_line = 0;
-
- last_comment_line = -1;
- last_non_comment_line = -1;
-
- /* Start state is 0. */
- state = 0;
-
- for (;;)
- {
- token_ty token;
-
- x_ycp_lex (&token);
- switch (token.type)
- {
- case token_type_i18n:
- state = 1;
- plural_mp = NULL;
- continue;
-
- case token_type_string_literal:
- if (state == 1)
- {
- lex_pos_ty pos;
- pos.file_name = logical_file_name;
- pos.line_number = token.line_number;
-
- if (plural_mp == NULL)
- {
- /* Seen an msgid. */
- plural_mp = remember_a_message (mlp, token.string, &pos);
- state = 2;
- }
- else
- {
- /* Seen an msgid_plural. */
- remember_a_message_plural (plural_mp, token.string, &pos);
- state = 0;
- }
- }
- else
- {
- free (token.string);
- state = 0;
- }
- continue;
-
- case token_type_comma:
- if (state == 2)
- state = 1;
- else
- state = 0;
- continue;
-
- case token_type_eof:
- break;
-
- case token_type_symbol:
- free (token.string);
- /* FALLTHROUGH */
- default:
- state = 0;
- continue;
- }
- break;
- }
-
- fp = NULL;
- real_file_name = NULL;
- logical_file_name = NULL;
- line_number = 0;
- char_in_line = 0;
-}