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