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/*
* Wine Message Compiler parser
*
* Copyright 2000 Bertho A. Stultiens (BS)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*
* NOTES:
*
* The basic grammar of the file is yet another example of, humpf,
* design. There is a mix of context-insensitive and -sensitive
* stuff, which makes it rather complicated.
* The header definitions are all context-insensitive because they have
* delimited arguments, whereas the message headers are (semi-) context-
* sensitive and the messages themselves are, well, RFC82[12] delimited.
* This mixture seems to originate from the time that ms and ibm were
* good friends and developing os/2 according to the "compatibility"
* switch and reading some comments here and there.
*
* I'll ignore most of the complications and concentrate on the concept
* which allows me to use yacc. Basically, everything is context-
* insensitive now, with the exception of the message-text itself and
* the preceding language declaration.
*
*/
%{
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
#include "wmc.h"
#include "utils.h"
#include "lang.h"
static const char err_syntax[] = "Syntax error\n";
static const char err_number[] = "Number expected\n";
static const char err_ident[] = "Identifier expected\n";
static const char err_assign[] = "'=' expected\n";
static const char err_popen[] = "'(' expected\n";
static const char err_pclose[] = "')' expected\n";
static const char err_colon[] = "':' expected\n";
static const char err_msg[] = "Message expected\n";
/* Scanner switches */
int want_nl = 0; /* Request next newlinw */
int want_line = 0; /* Request next complete line */
int want_file = 0; /* Request next ident as filename */
struct node *nodehead = NULL; /* The list of all parsed elements */
static struct node *nodetail;
struct lan_blk *lanblockhead; /* List of parsed elements transposed */
static int base = 16; /* Current printout base to use (8, 10 or 16) */
static WCHAR *cast = NULL; /* Current typecast to use */
static int last_id = 0; /* The last message ID parsed */
static int last_sev = 0; /* Last severity code parsed */
static int last_fac = 0; /* Last facility code parsed */
static WCHAR *last_sym = NULL;/* Last alias symbol parsed */
static int have_sev; /* Set if severity parsed for current message */
static int have_fac; /* Set if facility parsed for current message */
static int have_sym; /* Set is symbol parsed for current message */
static struct cp_xlat *cpxlattab = NULL; /* Codepage translation table */
static int ncpxlattab = 0;
/* Prototypes */
static WCHAR *merge(WCHAR *s1, WCHAR *s2);
static struct lanmsg *new_lanmsg(struct lan_cp *lcp, WCHAR *msg);
static struct msg *add_lanmsg(struct msg *msg, struct lanmsg *lanmsg);
static struct msg *complete_msg(struct msg *msg, int id);
static void add_node(enum node_type type, void *p);
static void do_add_token(enum tok_enum type, struct token *tok, const char *code);
static void test_id(int id);
static int check_languages(struct node *head);
static struct lan_blk *block_messages(struct node *head);
static void add_cpxlat(int lan, int cpin, int cpout);
static struct cp_xlat *find_cpxlat(int lan);
%}
%union {
WCHAR *str;
unsigned num;
struct token *tok;
struct lanmsg *lmp;
struct msg *msg;
struct lan_cp lcp;
}
%token tSEVNAMES tFACNAMES tLANNAMES tBASE tCODEPAGE
%token tTYPEDEF tNL tSYMNAME tMSGEND
%token tSEVERITY tFACILITY tLANGUAGE tMSGID
%token <str> tIDENT tLINE tFILE tCOMMENT
%token <num> tNUMBER
%token <tok> tTOKEN
%type <str> alias lines
%type <num> optcp id msgid clan
%type <tok> token
%type <lmp> body
%type <msg> bodies msg
%type <lcp> lang
%%
file : items {
if(!check_languages(nodehead))
xyyerror("No messages defined\n");
lanblockhead = block_messages(nodehead);
}
;
items : decl
| items decl
;
decl : global
| msg { add_node(nd_msg, $1); }
| tCOMMENT { add_node(nd_comment, $1); }
| error { xyyerror(err_syntax); /* `Catch all' error */ }
;
global : tSEVNAMES '=' '(' smaps ')'
| tSEVNAMES '=' '(' smaps error { xyyerror(err_pclose); }
| tSEVNAMES '=' error { xyyerror(err_popen); }
| tSEVNAMES error { xyyerror(err_assign); }
| tFACNAMES '=' '(' fmaps ')'
| tFACNAMES '=' '(' fmaps error { xyyerror(err_pclose); }
| tFACNAMES '=' error { xyyerror(err_popen); }
| tFACNAMES error { xyyerror(err_assign); }
| tLANNAMES '=' '(' lmaps ')'
| tLANNAMES '=' '(' lmaps error { xyyerror(err_pclose); }
| tLANNAMES '=' error { xyyerror(err_popen); }
| tLANNAMES error { xyyerror(err_assign); }
| tCODEPAGE '=' '(' cmaps ')'
| tCODEPAGE '=' '(' cmaps error { xyyerror(err_pclose); }
| tCODEPAGE '=' error { xyyerror(err_popen); }
| tCODEPAGE error { xyyerror(err_assign); }
| tTYPEDEF '=' tIDENT { cast = $3; }
| tTYPEDEF '=' error { xyyerror(err_number); }
| tTYPEDEF error { xyyerror(err_assign); }
| tBASE '=' tNUMBER {
switch(base)
{
case 8:
case 10:
case 16:
base = $3;
break;
default:
xyyerror("Numberbase must be 8, 10 or 16\n");
}
}
| tBASE '=' error { xyyerror(err_number); }
| tBASE error { xyyerror(err_assign); }
;
/*----------------------------------------------------------------------
* SeverityNames mapping
*/
smaps : smap
| smaps smap
| error { xyyerror(err_ident); }
;
smap : token '=' tNUMBER alias {
$1->token = $3;
$1->alias = $4;
if($3 & (~0x3))
xyyerror("Severity value out of range (0x%08x > 0x3)\n", $3);
do_add_token(tok_severity, $1, "severity");
}
| token '=' error { xyyerror(err_number); }
| token error { xyyerror(err_assign); }
;
/*----------------------------------------------------------------------
* FacilityNames mapping
*/
fmaps : fmap
| fmaps fmap
| error { xyyerror(err_ident); }
;
fmap : token '=' tNUMBER alias {
$1->token = $3;
$1->alias = $4;
if($3 & (~0xfff))
xyyerror("Facility value out of range (0x%08x > 0xfff)\n", $3);
do_add_token(tok_facility, $1, "facility");
}
| token '=' error { xyyerror(err_number); }
| token error { xyyerror(err_assign); }
;
alias : /* Empty */ { $$ = NULL; }
| ':' tIDENT { $$ = $2; }
| ':' error { xyyerror(err_ident); }
;
/*----------------------------------------------------------------------
* LanguageNames mapping
*/
lmaps : lmap
| lmaps lmap
| error { xyyerror(err_ident); }
;
lmap : token '=' tNUMBER setfile ':' tFILE optcp {
$1->token = $3;
$1->alias = $6;
$1->codepage = $7;
do_add_token(tok_language, $1, "language");
if(!find_language($3) && !find_cpxlat($3))
mcy_warning("Language 0x%x not built-in, using codepage %d; use explicit codepage to override\n", $3, WMC_DEFAULT_CODEPAGE);
}
| token '=' tNUMBER setfile ':' error { xyyerror("Filename expected\n"); }
| token '=' tNUMBER error { xyyerror(err_colon); }
| token '=' error { xyyerror(err_number); }
| token error { xyyerror(err_assign); }
;
optcp : /* Empty */ { $$ = 0; }
| ':' tNUMBER { $$ = $2; }
| ':' error { xyyerror("Codepage-number expected\n"); }
;
/*----------------------------------------------------------------------
* Codepages mapping
*/
cmaps : cmap
| cmaps cmap
| error { xyyerror(err_ident); }
;
cmap : clan '=' tNUMBER ':' tNUMBER {
static const char err_nocp[] = "Codepage %d not builtin; cannot convert\n";
if(find_cpxlat($1))
xyyerror("Codepage translation already defined for language 0x%x\n", $1);
if($3 && !is_valid_codepage($3))
xyyerror(err_nocp, $3);
if($5 && !is_valid_codepage($5))
xyyerror(err_nocp, $5);
add_cpxlat($1, $3, $5);
}
| clan '=' tNUMBER ':' error { xyyerror(err_number); }
| clan '=' tNUMBER error { xyyerror(err_colon); }
| clan '=' error { xyyerror(err_number); }
| clan error { xyyerror(err_assign); }
;
clan : tNUMBER { $$ = $1; }
| tTOKEN {
if($1->type != tok_language)
xyyerror("Language name or code expected\n");
$$ = $1->token;
}
;
/*----------------------------------------------------------------------
* Message-definition parsing
*/
msg : msgid sevfacsym { test_id($1); } bodies { $$ = complete_msg($4, $1); }
;
msgid : tMSGID '=' id {
if($3 & (~0xffff))
xyyerror("Message ID value out of range (0x%08x > 0xffff)\n", $3);
$$ = $3;
}
| tMSGID error { xyyerror(err_assign); }
;
id : /* Empty */ { $$ = ++last_id; }
| tNUMBER { $$ = last_id = $1; }
| '+' tNUMBER { $$ = last_id += $2; }
| '+' error { xyyerror(err_number); }
;
sevfacsym: /* Empty */ { have_sev = have_fac = have_sym = 0; }
| sevfacsym sev { if(have_sev) xyyerror("Severity already defined\n"); have_sev = 1; }
| sevfacsym fac { if(have_fac) xyyerror("Facility already defined\n"); have_fac = 1; }
| sevfacsym sym { if(have_sym) xyyerror("Symbolname already defined\n"); have_sym = 1; }
;
sym : tSYMNAME '=' tIDENT { last_sym = $3; }
| tSYMNAME '=' error { xyyerror(err_ident); }
| tSYMNAME error { xyyerror(err_assign); }
;
sev : tSEVERITY '=' token {
struct token *tok = lookup_token($3->name);
if(!tok)
xyyerror("Undefined severityname\n");
if(tok->type != tok_severity)
xyyerror("Identifier is not of class 'severity'\n");
last_sev = tok->token;
}
| tSEVERITY '=' error { xyyerror(err_ident); }
| tSEVERITY error { xyyerror(err_assign); }
;
fac : tFACILITY '=' token {
struct token *tok = lookup_token($3->name);
if(!tok)
xyyerror("Undefined facilityname\n");
if(tok->type != tok_facility)
xyyerror("Identifier is not of class 'facility'\n");
last_fac = tok->token;
}
| tFACILITY '=' error { xyyerror(err_ident); }
| tFACILITY error { xyyerror(err_assign); }
;
/*----------------------------------------------------------------------
* Message-text parsing
*/
bodies : body { $$ = add_lanmsg(NULL, $1); }
| bodies body { $$ = add_lanmsg($1, $2); }
| error { xyyerror("'Language=...' (start of message text-definition) expected\n"); }
;
body : lang setline lines tMSGEND { $$ = new_lanmsg(&$1, $3); }
;
/*
* The newline is to be able to set the codepage
* to the language based codepage for the next
* message to be parsed.
*/
lang : tLANGUAGE setnl '=' token tNL {
struct token *tok = lookup_token($4->name);
struct cp_xlat *cpx;
if(!tok)
xyyerror("Undefined language\n");
if(tok->type != tok_language)
xyyerror("Identifier is not of class 'language'\n");
if((cpx = find_cpxlat(tok->token)))
{
set_codepage($$.codepage = cpx->cpin);
}
else if(!tok->codepage)
{
const struct language *lan = find_language(tok->token);
if(!lan)
{
/* Just set default; warning was given while parsing languagenames */
set_codepage($$.codepage = WMC_DEFAULT_CODEPAGE);
}
else
{
/* The default seems to be to use the DOS codepage... */
set_codepage($$.codepage = lan->doscp);
}
}
else
set_codepage($$.codepage = tok->codepage);
$$.language = tok->token;
}
| tLANGUAGE setnl '=' token error { xyyerror("Missing newline\n"); }
| tLANGUAGE setnl '=' error { xyyerror(err_ident); }
| tLANGUAGE error { xyyerror(err_assign); }
;
lines : tLINE { $$ = $1; }
| lines tLINE { $$ = merge($1, $2); }
| error { xyyerror(err_msg); }
| lines error { xyyerror(err_msg); }
;
/*----------------------------------------------------------------------
* Helper rules
*/
token : tIDENT { $$ = xmalloc(sizeof(struct token)); memset($$,0,sizeof(*$$)); $$->name = $1; }
| tTOKEN { $$ = $1; }
;
setnl : /* Empty */ { want_nl = 1; }
;
setline : /* Empty */ { want_line = 1; }
;
setfile : /* Empty */ { want_file = 1; }
;
%%
static WCHAR *merge(WCHAR *s1, WCHAR *s2)
{
int l1 = unistrlen(s1);
int l2 = unistrlen(s2);
s1 = xrealloc(s1, (l1 + l2 + 1) * sizeof(*s1));
unistrcpy(s1+l1, s2);
free(s2);
return s1;
}
static void do_add_token(enum tok_enum type, struct token *tok, const char *code)
{
struct token *tp = lookup_token(tok->name);
if(tp)
{
if(tok->type != type)
mcy_warning("Type change in token\n");
if(tp != tok)
xyyerror("Overlapping token not the same\n");
/* else its already defined and changed */
if(tok->fixed)
xyyerror("Redefinition of %s\n", code);
tok->fixed = 1;
}
else
{
add_token(type, tok->name, tok->token, tok->codepage, tok->alias, 1);
free(tok);
}
}
static struct lanmsg *new_lanmsg(struct lan_cp *lcp, WCHAR *msg)
{
struct lanmsg *lmp = xmalloc(sizeof(*lmp));
lmp->lan = lcp->language;
lmp->cp = lcp->codepage;
lmp->msg = msg;
lmp->len = unistrlen(msg) + 1; /* Include termination */
lmp->file = input_name;
lmp->line = line_number;
if(lmp->len > 4096)
mcy_warning("Message exceptionally long; might be a missing termination\n");
return lmp;
}
static struct msg *add_lanmsg(struct msg *msg, struct lanmsg *lanmsg)
{
int i;
if(!msg)
{
msg = xmalloc(sizeof(*msg));
memset( msg, 0, sizeof(*msg) );
}
msg->msgs = xrealloc(msg->msgs, (msg->nmsgs+1) * sizeof(*(msg->msgs)));
msg->msgs[msg->nmsgs] = lanmsg;
msg->nmsgs++;
for(i = 0; i < msg->nmsgs-1; i++)
{
if(msg->msgs[i]->lan == lanmsg->lan)
xyyerror("Message for language 0x%x already defined\n", lanmsg->lan);
}
return msg;
}
static int sort_lanmsg(const void *p1, const void *p2)
{
return (*(const struct lanmsg * const *)p1)->lan - (*(const struct lanmsg * const*)p2)->lan;
}
static struct msg *complete_msg(struct msg *mp, int id)
{
assert(mp != NULL);
mp->id = id;
if(have_sym)
mp->sym = last_sym;
else
xyyerror("No symbolic name defined for message id %d\n", id);
mp->sev = last_sev;
mp->fac = last_fac;
qsort(mp->msgs, mp->nmsgs, sizeof(*(mp->msgs)), sort_lanmsg);
mp->realid = id | (last_sev << 30) | (last_fac << 16);
if(custombit)
mp->realid |= 1 << 29;
mp->base = base;
mp->cast = cast;
return mp;
}
static void add_node(enum node_type type, void *p)
{
struct node *ndp = xmalloc(sizeof(*ndp));
memset( ndp, 0, sizeof(*ndp) );
ndp->type = type;
ndp->u.all = p;
if(nodetail)
{
ndp->prev = nodetail;
nodetail->next = ndp;
nodetail = ndp;
}
else
{
nodehead = nodetail = ndp;
}
}
static void test_id(int id)
{
struct node *ndp;
for(ndp = nodehead; ndp; ndp = ndp->next)
{
if(ndp->type != nd_msg)
continue;
if(ndp->u.msg->id == id && ndp->u.msg->sev == last_sev && ndp->u.msg->fac == last_fac)
xyyerror("MessageId %d with facility 0x%x and severity 0x%x already defined\n", id, last_fac, last_sev);
}
}
static int check_languages(struct node *head)
{
static const char err_missing[] = "Missing definition for language 0x%x; MessageID %d, facility 0x%x, severity 0x%x\n";
struct node *ndp;
int nm = 0;
struct msg *msg = NULL;
for(ndp = head; ndp; ndp = ndp->next)
{
if(ndp->type != nd_msg)
continue;
if(!nm)
{
msg = ndp->u.msg;
}
else
{
int i;
struct msg *m1;
struct msg *m2;
if(ndp->u.msg->nmsgs > msg->nmsgs)
{
m1 = ndp->u.msg;
m2 = msg;
}
else
{
m1 = msg;
m2 = ndp->u.msg;
}
for(i = 0; i < m1->nmsgs; i++)
{
if(i > m2->nmsgs)
error(err_missing, m1->msgs[i]->lan, m2->id, m2->fac, m2->sev);
else if(m1->msgs[i]->lan < m2->msgs[i]->lan)
error(err_missing, m1->msgs[i]->lan, m2->id, m2->fac, m2->sev);
else if(m1->msgs[i]->lan > m2->msgs[i]->lan)
error(err_missing, m2->msgs[i]->lan, m1->id, m1->fac, m1->sev);
}
}
nm++;
}
return nm;
}
#define MSGRID(x) ((*(const struct msg * const*)(x))->realid)
static int sort_msg(const void *p1, const void *p2)
{
return MSGRID(p1) > MSGRID(p2) ? 1 : (MSGRID(p1) == MSGRID(p2) ? 0 : -1);
}
/*
* block_messages() basically transposes the messages
* from ID/language based list to a language/ID
* based list.
*/
static struct lan_blk *block_messages(struct node *head)
{
struct lan_blk *lbp;
struct lan_blk *lblktail = NULL;
struct lan_blk *lblkhead = NULL;
struct msg **msgtab = NULL;
struct node *ndp;
int nmsg = 0;
int i;
int nl;
int factor = 2;
for(ndp = head; ndp; ndp = ndp->next)
{
if(ndp->type != nd_msg)
continue;
msgtab = xrealloc(msgtab, (nmsg+1) * sizeof(*msgtab));
msgtab[nmsg++] = ndp->u.msg;
}
assert(nmsg != 0);
qsort(msgtab, nmsg, sizeof(*msgtab), sort_msg);
for(nl = 0; nl < msgtab[0]->nmsgs; nl++) /* This should be equal for all after check_languages() */
{
lbp = xmalloc(sizeof(*lbp));
memset( lbp, 0, sizeof(*lbp) );
if(!lblktail)
{
lblkhead = lblktail = lbp;
}
else
{
lblktail->next = lbp;
lbp->prev = lblktail;
lblktail = lbp;
}
lbp->nblk = 1;
lbp->blks = xmalloc(sizeof(*lbp->blks));
lbp->blks[0].idlo = msgtab[0]->realid;
lbp->blks[0].idhi = msgtab[0]->realid;
/* The plus 4 is the entry header; (+3)&~3 is DWORD alignment */
lbp->blks[0].size = ((factor * msgtab[0]->msgs[nl]->len + 3) & ~3) + 4;
lbp->blks[0].msgs = xmalloc(sizeof(*lbp->blks[0].msgs));
lbp->blks[0].nmsg = 1;
lbp->blks[0].msgs[0] = msgtab[0]->msgs[nl];
lbp->lan = msgtab[0]->msgs[nl]->lan;
for(i = 1; i < nmsg; i++)
{
struct block *blk = &(lbp->blks[lbp->nblk-1]);
if(msgtab[i]->realid == blk->idhi+1)
{
blk->size += ((factor * msgtab[i]->msgs[nl]->len + 3) & ~3) + 4;
blk->idhi++;
blk->msgs = xrealloc(blk->msgs, (blk->nmsg+1) * sizeof(*blk->msgs));
blk->msgs[blk->nmsg++] = msgtab[i]->msgs[nl];
}
else
{
lbp->nblk++;
lbp->blks = xrealloc(lbp->blks, lbp->nblk * sizeof(*lbp->blks));
blk = &(lbp->blks[lbp->nblk-1]);
blk->idlo = msgtab[i]->realid;
blk->idhi = msgtab[i]->realid;
blk->size = ((factor * msgtab[i]->msgs[nl]->len + 3) & ~3) + 4;
blk->msgs = xmalloc(sizeof(*blk->msgs));
blk->nmsg = 1;
blk->msgs[0] = msgtab[i]->msgs[nl];
}
}
}
free(msgtab);
return lblkhead;
}
static int sc_xlat(const void *p1, const void *p2)
{
return ((const struct cp_xlat *)p1)->lan - ((const struct cp_xlat *)p2)->lan;
}
static void add_cpxlat(int lan, int cpin, int cpout)
{
cpxlattab = xrealloc(cpxlattab, (ncpxlattab+1) * sizeof(*cpxlattab));
cpxlattab[ncpxlattab].lan = lan;
cpxlattab[ncpxlattab].cpin = cpin;
cpxlattab[ncpxlattab].cpout = cpout;
ncpxlattab++;
qsort(cpxlattab, ncpxlattab, sizeof(*cpxlattab), sc_xlat);
}
static struct cp_xlat *find_cpxlat(int lan)
{
struct cp_xlat t;
if(!cpxlattab) return NULL;
t.lan = lan;
return (struct cp_xlat *)bsearch(&t, cpxlattab, ncpxlattab, sizeof(*cpxlattab), sc_xlat);
}
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