lxdream 0.9.1| filename | src/tools/mdparse.c |
| changeset | 1105:73da8fd129fb |
| prev | 1104:700e16c321e5 |
| next | 1296:30ecee61f811 |
| author | nkeynes |
| date | Tue Feb 28 17:25:26 2012 +1000 (12 years ago) |
| permissions | -rw-r--r-- |
| last change | Implement display output for the GLES2 case (no fixed function rendering) |
| file | annotate | diff | log | raw |
1.1 --- a/src/tools/mdparse.c Mon Mar 15 22:10:24 2010 +10001.2 +++ b/src/tools/mdparse.c Tue Feb 28 17:25:26 2012 +10001.3 @@ -113,15 +113,20 @@1.4 int slen;1.5 } token_data;1.7 -static char *yybuffer;1.8 -static char *yyposn, *yylineposn;1.9 -static char *yyend;1.10 -static int yyline;1.11 +struct yystate {1.12 + char *yybuffer;1.13 + char *yyfilename;1.14 + char *yyposn, *yylineposn, *yyend;1.15 + int yylineno;1.16 +};1.17 +1.18 +static GList *yyfile_stack = NULL;1.19 +static struct yystate yystate;1.20 static struct token_data yytok;1.22 #define YYPARSE_ERROR( msg, ... ) \1.23 do { \1.24 - fprintf( stderr, "Parse error at %d:%d: " msg "\n", yytok.yyline, yytok.yycol, __VA_ARGS__ ); \1.25 + fprintf( stderr, "Parse error in %s:%d:%d: " msg "\n", yystate.yyfilename, yytok.yyline, yytok.yycol, __VA_ARGS__ ); \1.26 exit(2); \1.27 } while(0)1.29 @@ -135,6 +140,8 @@1.30 static int iolex( int expectToken );1.31 static int iolex_open( const char *filename );1.32 static void iolex_close();1.33 +static int iolex_push( const char *filename );1.34 +static int iolex_pop( );1.36 static inline char *yystrdup()1.37 {1.38 @@ -426,13 +433,21 @@1.39 return blocks;1.41 int tok;1.42 - do {1.43 + while(1) {1.44 tok = iolex(TOK_REGISTERS);1.45 if( tok == TOK_EOF ) {1.46 - return blocks;1.47 + int result = iolex_pop();1.48 + if( result == -1 )1.49 + break;1.50 } else if( tok == TOK_INCLUDE) {1.51 READ(TOK_STRING);1.52 -1.53 + char *tmp = yystrdup();1.54 + READ(TOK_SEMI);1.55 + int result = iolex_push( tmp );1.56 + if( result == -1 ) {1.57 + YYPARSE_ERROR("Unable to include file '%s'", tmp);1.58 + }1.59 + free(tmp);1.60 } else if( tok == TOK_SPACE ) {1.61 } else if( tok == TOK_REGISTERS ) {1.62 struct regblock *block = ioparse_regblock(block);1.63 @@ -441,18 +456,36 @@1.64 } else {1.65 YYPARSE_ERROR("Expected REGISTERS but got %s\n", TOKEN_NAMES[tok] );1.66 }1.67 - } while( tok != TOK_EOF );1.68 -1.69 - iolex_close();1.70 - if( count == 0 ) {1.71 - fprintf( stderr, "Warning: input file '%s' did not contain any register definitions\n" );1.72 }1.73 -1.74 return blocks;1.75 }1.77 /**************************** Lexical analyser ***************************/1.79 +static int iolex_push( const char *filename )1.80 +{1.81 + struct yystate *save = g_malloc(sizeof(struct yystate));1.82 + memcpy( save, &yystate, sizeof(struct yystate) );1.83 +1.84 + int result = iolex_open(filename);1.85 + if( result == 0 ) {1.86 + yyfile_stack = g_list_prepend(yyfile_stack, save);1.87 + }1.88 + return result;1.89 +}1.90 +1.91 +static int iolex_pop( )1.92 +{1.93 + iolex_close();1.94 + if( yyfile_stack == NULL )1.95 + return -1;1.96 + struct yystate *top = (struct yystate *)yyfile_stack->data;1.97 + yyfile_stack = g_list_remove(yyfile_stack, top);1.98 + memcpy( &yystate, top, sizeof(struct yystate) );1.99 + g_free( top );1.100 + return 0;1.101 +}1.102 +1.103 static int iolex_open( const char *filename )1.104 {1.105 struct stat st;1.106 @@ -477,21 +510,23 @@1.107 close(fd);1.108 data[st.st_size] = 0;1.110 - yybuffer = yyposn = data;1.111 - yyend = data + st.st_size;1.112 - yyline = 1;1.113 - yylineposn = yyposn;1.114 + yystate.yybuffer = yystate.yyposn = data;1.115 + yystate.yyend = data + st.st_size;1.116 + yystate.yylineno = 1;1.117 + yystate.yylineposn = yystate.yyposn;1.118 + yystate.yyfilename = strdup(filename);1.119 return 0;1.120 }1.122 static void iolex_close()1.123 {1.124 - g_free(yybuffer);1.125 - yybuffer = yyend = NULL;1.126 + g_free(yystate.yybuffer);1.127 + free(yystate.yyfilename);1.128 + memset(&yystate, 0, sizeof(struct yystate));1.129 }1.131 #define YYRETURN(x) do{ \1.132 - yytok.yylength = yyposn - yystart; \1.133 + yytok.yylength = yystate.yyposn - yystart; \1.134 return (x); \1.135 } while(0)1.137 @@ -584,32 +619,32 @@1.138 int iolex( int expectToken )1.139 {1.140 int count = 0;1.141 - while( yyposn < yyend ) {1.142 - char *yystart = yytok.yytext = yyposn;1.143 + while( yystate.yyposn < yystate.yyend ) {1.144 + char *yystart = yytok.yytext = yystate.yyposn;1.145 yytok.yylength = 1;1.146 - yytok.yyline = yyline;1.147 - yytok.yycol = yyposn - yylineposn+1;1.148 - int ch = *yyposn++;1.149 + yytok.yyline = yystate.yylineno;1.150 + yytok.yycol = yystate.yyposn - yystate.yylineposn+1;1.151 + int ch = *yystate.yyposn++;1.152 if( isdigit(ch) ) {1.153 /* INTEGER */1.154 if( ch == '0' ) {1.155 - if( *yyposn == 'x' ) {1.156 - while( yyposn < yyend && isxdigit(*++yyposn) ) ;1.157 + if( *yystate.yyposn == 'x' ) {1.158 + while( yystate.yyposn < yystate.yyend && isxdigit(*++yystate.yyposn) ) ;1.159 } else {1.160 - while( yyposn < yyend && *yyposn >= '0' && *yyposn <= '7' )1.161 - yyposn++;1.162 + while( yystate.yyposn < yystate.yyend && *yystate.yyposn >= '0' && *yystate.yyposn <= '7' )1.163 + yystate.yyposn++;1.164 }1.165 } else {1.166 - while( yyposn < yyend && isdigit(*yyposn) )1.167 - yyposn++;1.168 + while( yystate.yyposn < yystate.yyend && isdigit(*yystate.yyposn) )1.169 + yystate.yyposn++;1.170 }1.171 yytok.v.i = strtol( yystart, NULL, 0 );1.172 YYRETURN(TOK_INTEGER);1.173 } else if( isalpha(ch) || ch == '_' ) {1.174 /* IDENTIFIER */1.175 - while( yyposn < yyend && (isalnum(*yyposn) || *yyposn == '_') )1.176 - yyposn++;1.177 - yytok.yylength = yyposn - yystart;1.178 + while( yystate.yyposn < yystate.yyend && (isalnum(*yystate.yyposn) || *yystate.yyposn == '_') )1.179 + yystate.yyposn++;1.180 + yytok.yylength = yystate.yyposn - yystart;1.181 if( expectToken == TOK_IDENTIFIER ) {1.182 YYRETURN(TOK_IDENTIFIER);1.183 }1.184 @@ -623,15 +658,15 @@1.185 YYRETURN(TOK_IDENTIFIER);1.186 } else if( isspace(ch) ) {1.187 if( ch == '\n' ) {1.188 - yyline++;1.189 - yylineposn = yyposn;1.190 + yystate.yylineno++;1.191 + yystate.yylineposn = yystate.yyposn;1.192 }1.193 - while( isspace(*yyposn) ) {1.194 - if( *yyposn == '\n' ) {1.195 - yyline++;1.196 - yylineposn = yyposn+1;1.197 + while( isspace(*yystate.yyposn) ) {1.198 + if( *yystate.yyposn == '\n' ) {1.199 + yystate.yylineno++;1.200 + yystate.yylineposn = yystate.yyposn+1;1.201 }1.202 - yyposn++;1.203 + yystate.yyposn++;1.204 }1.205 } else {1.206 switch( ch ) {1.207 @@ -644,48 +679,48 @@1.208 case ';': YYRETURN(TOK_SEMI);1.209 case '=': YYRETURN(TOK_EQUALS);1.210 case '/':1.211 - if( *yyposn == '/' ) { /* Line comment */1.212 - while( yyposn < yyend && *++yyposn != '\n' ) ;1.213 - } else if( *yyposn == '*' ) { /* C comment */1.214 - while( yyposn < yyend && (*++yyposn != '*' || *++yyposn != '/' ) ) {1.215 - if( *yyposn == '\n' ) {1.216 - yyline++;1.217 - yylineposn = yyposn+1;1.218 + if( *yystate.yyposn == '/' ) { /* Line comment */1.219 + while( yystate.yyposn < yystate.yyend && *++yystate.yyposn != '\n' ) ;1.220 + } else if( *yystate.yyposn == '*' ) { /* C comment */1.221 + while( yystate.yyposn < yystate.yyend && (*++yystate.yyposn != '*' || *++yystate.yyposn != '/' ) ) {1.222 + if( *yystate.yyposn == '\n' ) {1.223 + yystate.yylineno++;1.224 + yystate.yylineposn = yystate.yyposn+1;1.225 }1.226 }1.227 }1.228 break;1.229 case '\'': /* STRING */1.230 - while( *yyposn != '\'' ) {1.231 - if( *yyposn == '\n' ) {1.232 + while( *yystate.yyposn != '\'' ) {1.233 + if( *yystate.yyposn == '\n' ) {1.234 fprintf( stderr, "Unexpected newline in string constant!\n" );1.235 YYRETURN(TOK_ERROR);1.236 - } else if( yyposn >= yyend ) {1.237 + } else if( yystate.yyposn >= yystate.yyend ) {1.238 fprintf( stderr, "Unexpected EOF in string constant!\n" );1.239 YYRETURN(TOK_ERROR);1.240 - } else if( *yyposn == '\\' && yyposn[1] == '\'' ) {1.241 - yyposn++;1.242 + } else if( *yystate.yyposn == '\\' && yystate.yyposn[1] == '\'' ) {1.243 + yystate.yyposn++;1.244 }1.245 - yyposn++;1.246 + yystate.yyposn++;1.247 }1.248 - yyposn++;1.249 - yytok.v.s = iolex_getcstring(yystart+1, yyposn-1, &yytok.slen);1.250 + yystate.yyposn++;1.251 + yytok.v.s = iolex_getcstring(yystart+1, yystate.yyposn-1, &yytok.slen);1.252 YYRETURN(TOK_STRING);1.253 case '\"': /* STRING */1.254 - while( *yyposn != '\"' ) {1.255 - if( *yyposn == '\n' ) {1.256 + while( *yystate.yyposn != '\"' ) {1.257 + if( *yystate.yyposn == '\n' ) {1.258 fprintf( stderr, "Unexpected newline in string constant!\n" );1.259 YYRETURN(TOK_ERROR);1.260 - } else if( yyposn >= yyend ) {1.261 + } else if( yystate.yyposn >= yystate.yyend ) {1.262 fprintf( stderr, "Unexpected EOF in string constant!\n" );1.263 YYRETURN(TOK_ERROR);1.264 - } else if( *yyposn == '\\' && yyposn[1] == '\"' ) {1.265 - yyposn++;1.266 + } else if( *yystate.yyposn == '\\' && yystate.yyposn[1] == '\"' ) {1.267 + yystate.yyposn++;1.268 }1.269 - yyposn++;1.270 + yystate.yyposn++;1.271 }1.272 - yyposn++;1.273 - yytok.v.s = iolex_getcstring(yystart+1, yyposn-1, &yytok.slen);1.274 + yystate.yyposn++;1.275 + yytok.v.s = iolex_getcstring(yystart+1, yystate.yyposn-1, &yytok.slen);1.276 YYRETURN(TOK_STRING);1.277 case '}':1.278 YYRETURN(TOK_RBRACE);1.279 @@ -694,18 +729,18 @@1.280 YYRETURN(TOK_LBRACE);1.281 } else {1.282 count++;1.283 - while( count > 0 && yyposn < yyend ) {1.284 - if( *yyposn == '{' )1.285 + while( count > 0 && yystate.yyposn < yystate.yyend ) {1.286 + if( *yystate.yyposn == '{' )1.287 count++;1.288 - if( *yyposn == '}' )1.289 + if( *yystate.yyposn == '}' )1.290 count--;1.291 - yyposn++;1.292 + yystate.yyposn++;1.293 }1.294 YYRETURN(TOK_ACTION);1.295 }1.296 case '.':1.297 - if( *yyposn == '.' ) {1.298 - yyposn++;1.299 + if( *yystate.yyposn == '.' ) {1.300 + yystate.yyposn++;1.301 YYRETURN(TOK_RANGE);1.302 } else {1.303 YYRETURN(TOK_PERIOD);
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