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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-05 18:33:23 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-05 18:33:23 +0000
commit1d5cace9db9aef76f26b2d7ba54bbb76443b00b2 (patch)
tree314a15dd1aa103da13bdc83ba1d2105a290bc5ba /input.h
parentInitial commit. (diff)
downloadbash-1d5cace9db9aef76f26b2d7ba54bbb76443b00b2.tar.xz
bash-1d5cace9db9aef76f26b2d7ba54bbb76443b00b2.zip
Adding upstream version 5.0.upstream/5.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'input.h')
-rw-r--r--input.h135
1 files changed, 135 insertions, 0 deletions
diff --git a/input.h b/input.h
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--- /dev/null
+++ b/input.h
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+/* input.h -- Structures and unions used for reading input. */
+
+/* Copyright (C) 1993-2018 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 __P((void)); /* sh_ivoidfunc_t */
+typedef int sh_cunget_func_t __P((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 __P((void));
+extern void init_yy_io __P((sh_cget_func_t *, sh_cunget_func_t *, enum stream_type, const char *, INPUT_STREAM));
+extern char *yy_input_name __P((void));
+extern void with_input_from_stdin __P((void));
+extern void with_input_from_string __P((char *, const char *));
+extern void with_input_from_stream __P((FILE *, const char *));
+extern void push_stream __P((int));
+extern void pop_stream __P((void));
+extern int stream_on_stack __P((enum stream_type));
+extern char *read_secondary_line __P((int));
+extern int find_reserved_word __P((char *));
+extern void gather_here_documents __P((void));
+extern void execute_variable_command __P((char *, char *));
+
+extern int *save_token_state __P((void));
+extern void restore_token_state __P((int *));
+
+/* Functions from input.c */
+extern int getc_with_restart __P((FILE *));
+extern int ungetc_with_restart __P((int, FILE *));
+
+#if defined (BUFFERED_INPUT)
+/* Functions from input.c. */
+extern int fd_is_bash_input __P((int));
+extern int set_bash_input_fd __P((int));
+extern int save_bash_input __P((int, int));
+extern int check_bash_input __P((int));
+extern int duplicate_buffered_stream __P((int, int));
+extern BUFFERED_STREAM *fd_to_buffered_stream __P((int));
+extern BUFFERED_STREAM *set_buffered_stream __P((int, BUFFERED_STREAM *));
+extern BUFFERED_STREAM *open_buffered_stream __P((char *));
+extern void free_buffered_stream __P((BUFFERED_STREAM *));
+extern int close_buffered_stream __P((BUFFERED_STREAM *));
+extern int close_buffered_fd __P((int));
+extern int sync_buffered_stream __P((int));
+extern int buffered_getchar __P((void));
+extern int buffered_ungetchar __P((int));
+extern void with_input_from_buffered_stream __P((int, char *));
+#endif /* BUFFERED_INPUT */
+
+#endif /* _INPUT_H_ */