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/* The IGEN simulator generator for GDB, the GNU Debugger.
Copyright 2002-2021 Free Software Foundation, Inc.
Contributed by Andrew Cagney.
This file is part of GDB.
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 3 of the License, 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, see <http://www.gnu.org/licenses/>. */
/* Read a table, line by line, from a file.
A table line has several forms:
Field line:
<text> { ":" <text> }
type == table_colon_entry
Fields points to a NULL terminated list of pointers.
Tab indented block:
<tab> <text> <nl> { <tab> <text> <nl> }
type == table_code_entry
The leading tab at the start of each line is discarded.
fields[i] is the i'th line with the <nl> discarded.
Code block:
"{" <ignore-text> <nl> { <text> <nl> } "}" <ignore-text> <nl>
type == table_code_entry
The leading/trailing {/} lines are discarded.
Lines containing two leading spaces have those spaces striped.
fields[i] is the i'th line with the <nl> discarded.
In addition, the table parser reconises and handles internally the
following (when not in a code block):
"#" <line-nr> '"' <file> '"'
As per CPP/CC, treat following lines as if they were taken from
<file> starting at <line-nr>
No support for CPP's "#if/#else/#endif" style conditions are
planned. */
typedef struct _table table;
typedef enum
{
table_colon_entry,
table_code_entry,
}
table_entry_type;
typedef struct _table_entry table_entry;
struct _table_entry
{
table *file;
line_ref *line;
table_entry_type type;
int nr_fields;
char **field;
};
/* List of directories to search when opening a pushed file. Current
directory is always searched first */
typedef struct _table_include table_include;
struct _table_include
{
char *dir;
table_include *next;
};
/* Open/read a table file. Since the file is read once during open
(and then closed immediately) there is no close method. */
extern table *table_open (const char *file_name);
extern table_entry *table_read (table *file);
/* Push the the state of the current file and open FILE_NAME. When
the end of FILE_NAME is reached, return to the pushed file */
extern void table_push
(table *file, line_ref *line, table_include *search, const char *file_name);
/* Expand the specified field_nr using the internal expansion table.
A field is only expanded when explicitly specified. */
extern void table_expand_field (table_entry *entry, int field_nr);
/* Given a code entry, write the code to FILE. Since any
leading/trailing braces were striped as part of the read, they are
not written. */
extern void table_print_code (lf *file, table_entry *entry);
/* Debugging */
extern void dump_line_ref
(lf *file, char *prefix, const line_ref *line, char *suffix);
extern void dump_table_entry
(lf *file, char *prefix, const table_entry *entry, char *suffix);
/* Utilities for skipping around text */
extern char *skip_digits (char *chp);
extern char *skip_spaces (char *chp);
extern char *skip_to_separator (char *chp, char *separators);
extern char *back_spaces (char *start, char *chp);
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