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[/] [or1k/] [trunk/] [gdb-5.3/] [sim/] [igen/] [table.h] - Rev 1775
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/* The IGEN simulator generator for GDB, the GNU Debugger. Copyright 2002 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 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);
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