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gram.y
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%{
/*
* Copyright © 2006 Keith Packard <keithp@keithp.com>
*
* 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.
*/
#include "cvs.h"
void yyerror (char *msg);
time_t skew_vulnerable = 0;
%}
%union {
int i;
time_t date;
char *s;
cvs_number number;
cvs_symbol *symbol;
cvs_version *version;
cvs_version **vlist;
cvs_patch *patch;
cvs_patch **patches;
cvs_branch *branch;
cvs_file *file;
}
%token HEAD BRANCH ACCESS SYMBOLS LOCKS COMMENT DATE
%token BRANCHES NEXT COMMITID EXPAND
%token DESC LOG TEXT STRICT AUTHOR STATE
%token SEMI COLON
%token BRAINDAMAGED_NUMBER
%token <s> HEX NAME DATA TEXT_DATA
%token <number> NUMBER
%type <s> text log
%type <symbol> symbollist symbol symbols
%type <version> revision
%type <vlist> revisions
%type <date> date
%type <branch> branches numbers
%type <s> opt_commitid commitid
%type <s> desc name
%type <s> author state
%type <number> next opt_number
%type <patch> patch
%type <patches> patches
%%
file : headers revisions desc patches
{
}
;
headers : header headers
|
;
header : HEAD opt_number SEMI
{ this_file->head = $2; }
| BRANCH NUMBER SEMI
{ this_file->branch = $2; }
| ACCESS SEMI
| symbollist
{ this_file->symbols = $1; }
| LOCKS locks SEMI lock_type
| COMMENT DATA SEMI
| EXPAND DATA SEMI
{ this_file->expand = $2; }
;
locks : locks lock
|
;
lock : NAME COLON NUMBER
;
lock_type : STRICT SEMI
|
;
symbollist : SYMBOLS symbols SEMI
{ $$ = $2; }
;
symbols : symbols symbol
{ $2->next = $1; $$ = $2; }
| symbols fscked_symbol
{ $$ = $1; }
|
{ $$ = NULL; }
;
symbol : name COLON NUMBER
{
$$ = calloc (1, sizeof (cvs_symbol));
$$->name = $1;
$$->number = $3;
}
;
fscked_symbol : name COLON BRAINDAMAGED_NUMBER
{
fprintf(stderr, "ignoring symbol %s (FreeBSD RELENG_2_1_0 braindamage?)\n", $1);
}
;
name : NAME
| NUMBER
{
char name[CVS_MAX_REV_LEN];
cvs_number_string (&$1, name);
$$ = atom (name);
}
;
revisions : revisions revision
{ *$1 = $2; $$ = &$2->next; }
|
{ $$ = &this_file->versions; }
;
revision : NUMBER date author state branches next opt_commitid
{
$$ = calloc (1, sizeof (cvs_version));
$$->number = $1;
$$->date = $2;
$$->author = $3;
$$->state = $4;
$$->dead = !strcmp ($4, "dead");
$$->branches = $5;
$$->parent = $6;
$$->commitid = $7;
if ($$->commitid == NULL && skew_vulnerable < $$->date)
skew_vulnerable = $$->date;
hash_version($$);
++this_file->nversions;
}
;
date : DATE NUMBER SEMI
{
$$ = lex_date (&$2);
}
;
author : AUTHOR NAME SEMI
{ $$ = $2; }
;
state : STATE NAME SEMI
{ $$ = $2; }
;
branches : BRANCHES numbers SEMI
{ $$ = $2; }
;
numbers : NUMBER numbers
{
$$ = calloc (1, sizeof (cvs_branch));
$$->next = $2;
$$->number = $1;
hash_branch($$);
}
|
{ $$ = NULL; }
;
next : NEXT opt_number SEMI
{ $$ = $2; }
;
opt_number : NUMBER
{ $$ = $1; }
|
{ $$.c = 0; }
;
opt_commitid : commitid
{ $$ = $1; }
|
{ $$ = NULL; }
;
commitid : COMMITID NAME SEMI
{ $$ = $2; }
;
desc : DESC DATA
{ $$ = $2; }
;
patches : patches patch
{ *$1 = $2; $$ = &$2->next; }
|
{ $$ = &this_file->patches; }
;
patch : NUMBER log text
{ $$ = calloc (1, sizeof (cvs_patch));
$$->number = $1;
$$->log = $2;
$$->text = $3;
hash_patch($$);
}
;
log : LOG DATA
{ $$ = $2; }
;
text : TEXT TEXT_DATA
{ $$ = $2; }
;
%%
void yyerror (char *msg)
{
fprintf (stderr, "parse error %s at %s\n", msg, lex_text ());
exit(1);
}