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author | Stan Shebs <shebs@codesourcery.com> | 1999-04-16 01:35:26 +0000 |
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committer | Stan Shebs <shebs@codesourcery.com> | 1999-04-16 01:35:26 +0000 |
commit | c906108c21474dfb4ed285bcc0ac6fe02cd400cc (patch) | |
tree | a0015aa5cedc19ccbab307251353a41722a3ae13 /sim/igen/table.h | |
parent | cd946cff9ede3f30935803403f06f6ed30cad136 (diff) | |
download | gdb-c906108c21474dfb4ed285bcc0ac6fe02cd400cc.zip gdb-c906108c21474dfb4ed285bcc0ac6fe02cd400cc.tar.gz gdb-c906108c21474dfb4ed285bcc0ac6fe02cd400cc.tar.bz2 |
Initial creation of sourceware repositorygdb-4_18-branchpoint
Diffstat (limited to 'sim/igen/table.h')
-rw-r--r-- | sim/igen/table.h | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/sim/igen/table.h b/sim/igen/table.h new file mode 100644 index 0000000..e0bc81b --- /dev/null +++ b/sim/igen/table.h @@ -0,0 +1,155 @@ +/* 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); |