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Add bash 5.2 to third_party
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Justine Tunney
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e1f65d5f2b
commit
f4a2a65cc8
237 changed files with 120739 additions and 1 deletions
135
third_party/bash/input.h
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135
third_party/bash/input.h
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/* input.h -- Structures and unions used for reading input. */
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/* Copyright (C) 1993-2020 Free Software Foundation, Inc.
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This file is part of GNU Bash, the Bourne Again SHell.
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Bash 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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Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>.
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*/
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#if !defined (_INPUT_H_)
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#define _INPUT_H_
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#include "stdc.h"
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/* Function pointers can be declared as (Function *)foo. */
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#if !defined (_FUNCTION_DEF)
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# define _FUNCTION_DEF
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typedef int Function ();
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typedef void VFunction ();
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typedef char *CPFunction (); /* no longer used */
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typedef char **CPPFunction (); /* no longer used */
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#endif /* _FUNCTION_DEF */
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typedef int sh_cget_func_t PARAMS((void)); /* sh_ivoidfunc_t */
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typedef int sh_cunget_func_t PARAMS((int)); /* sh_intfunc_t */
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enum stream_type {st_none, st_stdin, st_stream, st_string, st_bstream};
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#if defined (BUFFERED_INPUT)
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/* Possible values for b_flag. */
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#undef B_EOF
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#undef B_ERROR /* There are some systems with this define */
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#undef B_UNBUFF
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#define B_EOF 0x01
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#define B_ERROR 0x02
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#define B_UNBUFF 0x04
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#define B_WASBASHINPUT 0x08
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#define B_TEXT 0x10
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#define B_SHAREDBUF 0x20 /* shared input buffer */
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/* A buffered stream. Like a FILE *, but with our own buffering and
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synchronization. Look in input.c for the implementation. */
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typedef struct BSTREAM
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{
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int b_fd;
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char *b_buffer; /* The buffer that holds characters read. */
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size_t b_size; /* How big the buffer is. */
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size_t b_used; /* How much of the buffer we're using, */
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int b_flag; /* Flag values. */
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size_t b_inputp; /* The input pointer, index into b_buffer. */
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} BUFFERED_STREAM;
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#if 0
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extern BUFFERED_STREAM **buffers;
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#endif
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extern int default_buffered_input;
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extern int bash_input_fd_changed;
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#endif /* BUFFERED_INPUT */
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typedef union {
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FILE *file;
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char *string;
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#if defined (BUFFERED_INPUT)
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int buffered_fd;
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#endif
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} INPUT_STREAM;
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typedef struct {
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enum stream_type type;
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char *name;
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INPUT_STREAM location;
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sh_cget_func_t *getter;
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sh_cunget_func_t *ungetter;
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} BASH_INPUT;
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extern BASH_INPUT bash_input;
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/* Functions from parse.y whose use directly or indirectly depends on the
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definitions in this file. */
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extern void initialize_bash_input PARAMS((void));
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extern void init_yy_io PARAMS((sh_cget_func_t *, sh_cunget_func_t *, enum stream_type, const char *, INPUT_STREAM));
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extern char *yy_input_name PARAMS((void));
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extern void with_input_from_stdin PARAMS((void));
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extern void with_input_from_string PARAMS((char *, const char *));
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extern void with_input_from_stream PARAMS((FILE *, const char *));
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extern void push_stream PARAMS((int));
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extern void pop_stream PARAMS((void));
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extern int stream_on_stack PARAMS((enum stream_type));
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extern char *read_secondary_line PARAMS((int));
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extern int find_reserved_word PARAMS((char *));
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extern void gather_here_documents PARAMS((void));
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extern void execute_variable_command PARAMS((char *, char *));
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extern int *save_token_state PARAMS((void));
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extern void restore_token_state PARAMS((int *));
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/* Functions from input.c */
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extern int getc_with_restart PARAMS((FILE *));
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extern int ungetc_with_restart PARAMS((int, FILE *));
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#if defined (BUFFERED_INPUT)
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/* Functions from input.c. */
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extern int fd_is_bash_input PARAMS((int));
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extern int set_bash_input_fd PARAMS((int));
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extern int save_bash_input PARAMS((int, int));
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extern int check_bash_input PARAMS((int));
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extern int duplicate_buffered_stream PARAMS((int, int));
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extern BUFFERED_STREAM *fd_to_buffered_stream PARAMS((int));
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extern BUFFERED_STREAM *set_buffered_stream PARAMS((int, BUFFERED_STREAM *));
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extern BUFFERED_STREAM *open_buffered_stream PARAMS((char *));
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extern void free_buffered_stream PARAMS((BUFFERED_STREAM *));
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extern int close_buffered_stream PARAMS((BUFFERED_STREAM *));
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extern int close_buffered_fd PARAMS((int));
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extern int sync_buffered_stream PARAMS((int));
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extern int buffered_getchar PARAMS((void));
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extern int buffered_ungetchar PARAMS((int));
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extern void with_input_from_buffered_stream PARAMS((int, char *));
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#endif /* BUFFERED_INPUT */
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#endif /* _INPUT_H_ */
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