155 lines
3.6 KiB
C
155 lines
3.6 KiB
C
/* This file is part of the program psim.
|
|
|
|
Copyright (C) 1994-1995, Andrew Cagney <cagney@highland.com.au>
|
|
|
|
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 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, write to the Free Software
|
|
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
|
|
*/
|
|
|
|
|
|
/* 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 immediatly) 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);
|