Adding upstream version 5.1.upstream/5.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 135 insertions, 0 deletions

diff --git a/input.h b/input.h
new file mode 100644
index 0000000..cb3eee4
--- /dev/null
+++ b/input.h
@@ -0,0 +1,135 @@
+/* input.h -- Structures and unions used for reading input. */
+
+/* Copyright (C) 1993-2020 Free Software Foundation, Inc.
+
+   This file is part of GNU Bash, the Bourne Again SHell.
+
+   Bash is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   Bash 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 Bash.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#if !defined (_INPUT_H_)
+#define _INPUT_H_
+
+#include "stdc.h"
+
+/* Function pointers can be declared as (Function *)foo. */
+#if !defined (_FUNCTION_DEF)
+#  define _FUNCTION_DEF
+typedef int Function ();
+typedef void VFunction ();
+typedef char *CPFunction ();		/* no longer used */
+typedef char **CPPFunction ();		/* no longer used */
+#endif /* _FUNCTION_DEF */
+
+typedef int sh_cget_func_t PARAMS((void));		/* sh_ivoidfunc_t */
+typedef int sh_cunget_func_t PARAMS((int));	/* sh_intfunc_t */
+
+enum stream_type {st_none, st_stdin, st_stream, st_string, st_bstream};
+
+#if defined (BUFFERED_INPUT)
+
+/* Possible values for b_flag. */
+#undef B_EOF
+#undef B_ERROR		/* There are some systems with this define */
+#undef B_UNBUFF
+
+#define B_EOF		0x01
+#define B_ERROR		0x02
+#define B_UNBUFF	0x04
+#define B_WASBASHINPUT	0x08
+#define B_TEXT		0x10
+#define B_SHAREDBUF	0x20	/* shared input buffer */
+
+/* A buffered stream.  Like a FILE *, but with our own buffering and
+   synchronization.  Look in input.c for the implementation. */
+typedef struct BSTREAM
+{
+  int	 b_fd;
+  char	*b_buffer;		/* The buffer that holds characters read. */
+  size_t b_size;		/* How big the buffer is. */
+  size_t b_used;		/* How much of the buffer we're using, */
+  int	 b_flag;		/* Flag values. */
+  size_t b_inputp;		/* The input pointer, index into b_buffer. */
+} BUFFERED_STREAM;
+
+#if 0
+extern BUFFERED_STREAM **buffers;
+#endif
+
+extern int default_buffered_input;
+extern int bash_input_fd_changed;
+
+#endif /* BUFFERED_INPUT */
+
+typedef union {
+  FILE *file;
+  char *string;
+#if defined (BUFFERED_INPUT)
+  int buffered_fd;
+#endif
+} INPUT_STREAM;
+
+typedef struct {
+  enum stream_type type;
+  char *name;
+  INPUT_STREAM location;
+  sh_cget_func_t *getter;
+  sh_cunget_func_t *ungetter;
+} BASH_INPUT;
+
+extern BASH_INPUT bash_input;
+
+/* Functions from parse.y whose use directly or indirectly depends on the
+   definitions in this file. */
+extern void initialize_bash_input PARAMS((void));
+extern void init_yy_io PARAMS((sh_cget_func_t *, sh_cunget_func_t *, enum stream_type, const char *, INPUT_STREAM));
+extern char *yy_input_name PARAMS((void));
+extern void with_input_from_stdin PARAMS((void));
+extern void with_input_from_string PARAMS((char *, const char *));
+extern void with_input_from_stream PARAMS((FILE *, const char *));
+extern void push_stream PARAMS((int));
+extern void pop_stream PARAMS((void));
+extern int stream_on_stack PARAMS((enum stream_type));
+extern char *read_secondary_line PARAMS((int));
+extern int find_reserved_word PARAMS((char *));
+extern void gather_here_documents PARAMS((void));
+extern void execute_variable_command PARAMS((char *, char *));
+
+extern int *save_token_state PARAMS((void));
+extern void restore_token_state PARAMS((int *));
+
+/* Functions from input.c */
+extern int getc_with_restart PARAMS((FILE *));
+extern int ungetc_with_restart PARAMS((int, FILE *));
+
+#if defined (BUFFERED_INPUT)
+/* Functions from input.c. */
+extern int fd_is_bash_input PARAMS((int));
+extern int set_bash_input_fd PARAMS((int));
+extern int save_bash_input PARAMS((int, int));
+extern int check_bash_input PARAMS((int));
+extern int duplicate_buffered_stream PARAMS((int, int));
+extern BUFFERED_STREAM *fd_to_buffered_stream PARAMS((int));
+extern BUFFERED_STREAM *set_buffered_stream PARAMS((int, BUFFERED_STREAM *));
+extern BUFFERED_STREAM *open_buffered_stream PARAMS((char *));
+extern void free_buffered_stream PARAMS((BUFFERED_STREAM *));
+extern int close_buffered_stream PARAMS((BUFFERED_STREAM *));
+extern int close_buffered_fd PARAMS((int));
+extern int sync_buffered_stream PARAMS((int));
+extern int buffered_getchar PARAMS((void));
+extern int buffered_ungetchar PARAMS((int));
+extern void with_input_from_buffered_stream PARAMS((int, char *));
+#endif /* BUFFERED_INPUT */
+
+#endif /* _INPUT_H_ */