Annotation of parser3/src/main/compile.y, revision 1.281
1.168 parser 1: %{
1.105 paf 2: /** @file
1.106 paf 3: Parser: compiler(lexical parser and grammar).
4:
1.274 moko 5: Copyright (c) 2001-2015 Art. Lebedev Studio (http://www.artlebedev.com)
1.168 parser 6: Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf)
1.217 paf 7:
1.262 moko 8:
1.88 paf 9: */
10:
1.281 ! moko 11: volatile const char * IDENT_COMPILE_Y = "$Id: compile.y,v 1.280 2016/05/24 16:38:40 moko Exp $";
1.262 moko 12:
1.106 paf 13: /**
14: @todo parser4:
15: - cache compiled code from request to request. to do that...
16: -#: make method definitions, @CLASS, @BASE, @USE instructions,
1.88 paf 17: which would be executed afterwards, and actions
18: now performed at compile time would be delayed to run time.
1.106 paf 19: -#: make cache expiration on time and on disk-change of class source
20: -#: in apache use subpools for compiled class storage
21: -#: in iis make up specialized Pool object for that
1.24 paf 22: */
23:
1.206 paf 24: #define YYSTYPE ArrayOperation*
1.9 paf 25: #define YYDEBUG 1
1.271 moko 26: #define YYERROR_VERBOSE 1
27: #define yyerror(pc, msg) real_yyerror(pc, msg)
1.9 paf 28: #define YYPRINT(file, type, value) yyprint(file, type, value)
1.269 moko 29: #define YYMALLOC pa_malloc
30: #define YYFREE pa_free
1.1 paf 31:
1.206 paf 32: // includes
33:
1.1 paf 34: #include "compile_tools.h"
1.8 paf 35: #include "pa_value.h"
1.12 paf 36: #include "pa_request.h"
1.39 paf 37: #include "pa_vobject.h"
1.52 paf 38: #include "pa_vdouble.h"
1.98 paf 39: #include "pa_globals.h"
1.200 paf 40: #include "pa_vmethod_frame.h"
1.39 paf 41:
1.206 paf 42: // defines
43:
1.280 moko 44: #define CLASS_NAME "CLASS"
1.97 paf 45: #define USE_CONTROL_METHOD_NAME "USE"
1.226 misha 46: #define OPTIONS_CONTROL_METHOD_NAME "OPTIONS"
1.1 paf 47:
1.206 paf 48: // forwards
49:
1.264 moko 50: static int real_yyerror(Parse_control* pc, const char* s);
1.206 paf 51: static void yyprint(FILE* file, int type, YYSTYPE value);
52: static int yylex(YYSTYPE* lvalp, void* pc);
1.1 paf 53:
1.216 paf 54: static const VBool vfalse(false);
55: static const VBool vtrue(true);
1.261 moko 56: static const VString vempty;
1.216 paf 57:
1.8 paf 58: // local convinient inplace typecast & var
1.205 paf 59: #undef PC
1.271 moko 60: #define PC (*pc)
1.206 paf 61: #undef POOL
1.114 paf 62: #define POOL (*PC.pool)
1.107 paf 63: #ifndef DOXYGEN
1.265 moko 64:
1.281 ! moko 65: #define CLASS_ADD if(PC.class_add()){ \
! 66: strncpy(PC.error, PC.cclass->type(), MAX_STRING/2); \
! 67: strcat(PC.error, " - class is already defined"); \
! 68: YYERROR; \
! 69: }
! 70:
! 71: #define PC_ERROR(header, value, footer){ \
! 72: strcpy(PC.error, header); \
! 73: strncat(PC.error, value, MAX_STRING/2); \
! 74: strcat(PC.error, footer); \
1.265 moko 75: }
76:
1.1 paf 77: %}
78:
1.271 moko 79: %pure-parser
80: %lex-param {Parse_control* pc}
81: %parse-param {Parse_control* pc}
1.1 paf 82:
1.13 paf 83: %token EON
1.4 paf 84: %token STRING
1.1 paf 85: %token BOGUS
1.55 paf 86:
1.58 paf 87: %token BAD_STRING_COMPARISON_OPERATOR
1.114 paf 88: %token BAD_HEX_LITERAL
1.171 parser 89: %token BAD_METHOD_DECL_START
1.193 paf 90: %token BAD_METHOD_PARAMETER_NAME_CHARACTER
1.58 paf 91:
1.59 paf 92: %token LAND "&&"
1.58 paf 93: %token LOR "||"
1.193 paf 94: %token LXOR "!||"
95: %token NXOR "!|"
1.58 paf 96:
97: %token NLE "<="
98: %token NGE ">="
99: %token NEQ "=="
100: %token NNE "!="
1.195 paf 101: %token NSL "<<"
102: %token NSR ">>"
1.58 paf 103:
104: %token SLT "lt"
105: %token SGT "gt"
106: %token SLE "le"
107: %token SGE "ge"
108: %token SEQ "eq"
109: %token SNE "ne"
110:
1.67 paf 111: %token DEF "def"
112: %token IN "in"
113: %token FEXISTS "-f"
1.127 paf 114: %token DEXISTS "-d"
1.95 paf 115: %token IS "is"
1.67 paf 116:
1.216 paf 117: %token LITERAL_TRUE "true"
118: %token LITERAL_FALSE "false"
119:
1.57 paf 120: /* logical */
1.193 paf 121: %left "!||"
1.57 paf 122: %left "||"
123: %left "&&"
1.131 paf 124: %left '<' '>' "<=" ">=" "lt" "gt" "le" "ge"
125: %left "==" "!=" "eq" "ne"
126: %left "is" "def" "in" "-f" "-d"
1.57 paf 127:
128: /* bitwise */
1.193 paf 129: %left "!|"
1.131 paf 130: %left '|'
131: %left '&'
1.202 paf 132: %left "<<" ">>"
1.57 paf 133:
1.56 paf 134: /* numerical */
1.202 paf 135: %left '+' '-'
136: %left '*' '/' '\\' '%'
137: %left NUNARY /* unary - + */
138:
139: /* out-of-group */
140: %left '~' /* bitwise */
141: %left '!' /* logical */
1.1 paf 142:
143: %%
1.195 paf 144: all:
1.10 paf 145: one_big_piece {
1.281 ! moko 146: Method* method=new Method(Method::CT_ANY, 0, 0 /*min, max numbered_params_count*/, 0 /*param_names*/, 0 /*local_names*/, $1 /*parser_code*/, 0 /*native_code*/);
1.251 misha 147: PC.cclass->set_method(PC.alias_method(main_method_name), method);
1.10 paf 148: }
149: | methods;
150:
151: methods: method | methods method;
152: one_big_piece: maybe_codes;
153:
1.34 paf 154: method: control_method | code_method;
155:
156: control_method: '@' STRING '\n'
1.132 paf 157: maybe_control_strings {
1.260 misha 158: const String& command=LA2S(*$2)->trim(String::TRIM_END);
1.34 paf 159: YYSTYPE strings_code=$4;
1.206 paf 160: if(strings_code->count()<1*OPERATIONS_PER_OPVALUE) {
1.281 ! moko 161: PC_ERROR("@", command.cstr(), " is empty");
1.37 paf 162: YYERROR;
163: }
1.74 paf 164: if(command==CLASS_NAME) {
1.206 paf 165: if(strings_code->count()==1*OPERATIONS_PER_OPVALUE) {
1.265 moko 166: CLASS_ADD;
1.73 paf 167: // new class' name
1.260 misha 168: const String& name=LA2S(*strings_code)->trim(String::TRIM_END);
1.73 paf 169: // creating the class
1.206 paf 170: VStateless_class* cclass=new VClass;
1.226 misha 171: PC.cclass_new=cclass;
1.275 moko 172: PC.cclass_new->set_type(name.cstr());
1.266 misha 173: PC.append=false;
1.73 paf 174: } else {
1.268 moko 175: strcpy(PC.error, "@" CLASS_NAME " must contain only one line with class name (contains more then one)");
1.34 paf 176: YYERROR;
177: }
1.130 paf 178: } else if(command==USE_CONTROL_METHOD_NAME) {
1.265 moko 179: CLASS_ADD;
1.273 moko 180: for(size_t i=0; i<strings_code->count(); i+=OPERATIONS_PER_OPVALUE){
181: PC.request.use_file(PC.request.main_class, LA2S(*strings_code, i)->trim(String::TRIM_END),
182: PC.request.get_used_filename(PC.file_no), strings_code->get(i+1).origin);
183: }
1.130 paf 184: } else if(command==BASE_NAME) {
1.226 misha 185: if(PC.append){
1.281 ! moko 186: PC_ERROR("can't set base while appending methods to class '", PC.cclass->type(), "'");
1.226 misha 187: YYERROR;
188: }
1.265 moko 189: CLASS_ADD;
1.188 paf 190: if(PC.cclass->base_class()) { // already changed from default?
1.281 ! moko 191: PC_ERROR("class already have a base '", PC.cclass->base_class()->type(), "'");
1.130 paf 192: YYERROR;
193: }
1.206 paf 194: if(strings_code->count()==1*OPERATIONS_PER_OPVALUE) {
1.260 misha 195: const String& base_name=LA2S(*strings_code)->trim(String::TRIM_END);
1.252 misha 196: if(Value* base_class_value=PC.request.get_class(base_name)) {
1.206 paf 197: // @CLASS == @BASE sanity check
198: if(VStateless_class *base_class=base_class_value->get_class()) {
199: if(PC.cclass==base_class) {
1.268 moko 200: strcpy(PC.error, "@" CLASS_NAME " equals @" BASE_NAME);
1.206 paf 201: YYERROR;
202: }
203: PC.cclass->get_class()->set_base(base_class);
204: } else { // they asked to derive from a class without methods ['env' & co]
1.281 ! moko 205: PC_ERROR("'", base_name.cstr(), "': you can not derive from this class in @" BASE_NAME);
1.206 paf 206: YYERROR;
207: }
208: } else {
1.281 ! moko 209: PC_ERROR("'", base_name.cstr(), "': undefined class in @" BASE_NAME);
1.73 paf 210: YYERROR;
211: }
1.34 paf 212: } else {
1.268 moko 213: strcpy(PC.error, "@" BASE_NAME " must contain sole name");
1.34 paf 214: YYERROR;
215: }
1.223 misha 216: } else if(command==OPTIONS_CONTROL_METHOD_NAME) {
217: for(size_t i=0; i<strings_code->count(); i+=OPERATIONS_PER_OPVALUE) {
1.260 misha 218: const String& option=LA2S(*strings_code, i)->trim(String::TRIM_END);
1.279 moko 219: if(option==Symbols::LOCALS_SYMBOL){
1.226 misha 220: PC.set_all_vars_local();
1.279 moko 221: } else if(option==Symbols::PARTIAL_SYMBOL){
1.230 misha 222: if(PC.cclass_new){
223: if(VStateless_class* existed=PC.get_existed_class(PC.cclass_new)){
224: if(!PC.reuse_existed_class(existed)){
1.281 ! moko 225: PC_ERROR("can't append methods to '", PC.cclass_new->type(), "' - the class wasn't marked as partial");
1.230 misha 226: YYERROR;
227: }
1.226 misha 228: } else {
1.256 misha 229: // marks the new class as partial. we will be able to add methods here later.
1.230 misha 230: PC.cclass_new->set_partial();
1.226 misha 231: }
1.230 misha 232: } else {
1.279 moko 233: strcpy(PC.error, "'partial' option should be used straight after @" CLASS_NAME);
1.226 misha 234: YYERROR;
235: }
1.279 moko 236: } else if(option==Symbols::STATIC_SYMBOL){
1.256 misha 237: PC.set_methods_call_type(Method::CT_STATIC);
1.279 moko 238: } else if(option==Symbols::DYNAMIC_SYMBOL){
1.256 misha 239: PC.set_methods_call_type(Method::CT_DYNAMIC);
1.223 misha 240: } else {
1.281 ! moko 241: PC_ERROR("'", option.cstr(), "' invalid option. valid options are 'partial', 'locals', 'static' and 'dynamic'");
1.223 misha 242: YYERROR;
243: }
244: }
1.130 paf 245: } else {
1.281 ! moko 246: PC_ERROR("'", command.cstr(), "' invalid special name. valid names are '" CLASS_NAME "', '" USE_CONTROL_METHOD_NAME "', '" BASE_NAME "' and '" OPTIONS_CONTROL_METHOD_NAME "'.");
1.130 paf 247: YYERROR;
1.34 paf 248: }
249: };
1.132 paf 250: maybe_control_strings: empty | control_strings;
1.259 misha 251: control_strings: control_string | control_strings control_string { $$=$1; P(*$$, *$2); };
1.37 paf 252: control_string: maybe_string '\n';
253: maybe_string: empty | STRING;
1.34 paf 254:
1.222 misha 255: code_method: '@' STRING bracketed_maybe_strings maybe_bracketed_strings maybe_comment '\n' {
1.265 moko 256: CLASS_ADD;
1.208 paf 257: PC.explicit_result=false;
1.10 paf 258:
259: YYSTYPE params_names_code=$3;
1.206 paf 260: ArrayString* params_names=0;
261: if(int size=params_names_code->count()) {
262: params_names=new ArrayString;
263: for(int i=0; i<size; i+=OPERATIONS_PER_OPVALUE)
264: *params_names+=LA2S(*params_names_code, i);
1.75 paf 265: }
1.10 paf 266:
267: YYSTYPE locals_names_code=$4;
1.206 paf 268: ArrayString* locals_names=0;
1.223 misha 269: bool all_vars_local=false;
1.206 paf 270: if(int size=locals_names_code->count()) {
271: locals_names=new ArrayString;
1.208 paf 272: for(int i=0; i<size; i+=OPERATIONS_PER_OPVALUE) {
273: const String* local_name=LA2S(*locals_names_code, i);
1.279 moko 274: if(SYMBOLS_EQ(*local_name,RESULT_SYMBOL))
1.208 paf 275: PC.explicit_result=true;
1.279 moko 276: else if(SYMBOLS_EQ(*local_name,LOCALS_SYMBOL))
1.223 misha 277: all_vars_local=true;
1.208 paf 278: else
279: *locals_names+=local_name;
280: }
1.75 paf 281: }
1.231 misha 282: if(!all_vars_local && PC.cclass && PC.cclass->is_vars_local())
1.223 misha 283: all_vars_local=true;
1.10 paf 284:
1.208 paf 285: Method* method=new Method(
1.206 paf 286: //name,
1.257 misha 287: GetMethodCallType(PC, *$2),
1.81 paf 288: 0, 0/*min,max numbered_params_count*/,
1.76 paf 289: params_names, locals_names,
1.223 misha 290: 0/*to be filled later in next {} */, 0, all_vars_local);
1.221 misha 291:
1.208 paf 292: *reinterpret_cast<Method**>(&$$)=method;
1.222 misha 293: } maybe_codes {
1.251 misha 294: Method* method=reinterpret_cast<Method*>($7);
1.231 misha 295: // fill in the code
1.251 misha 296: method->parser_code=$8;
1.231 misha 297:
298: // register in class
299: const String& name=*LA2S(*$2);
1.251 misha 300: PC.cclass->set_method(PC.alias_method(name), method);
1.8 paf 301: };
1.10 paf 302:
303: maybe_bracketed_strings: empty | bracketed_maybe_strings;
1.259 misha 304: bracketed_maybe_strings: '[' maybe_strings ']' {$$=$2;};
1.10 paf 305: maybe_strings: empty | strings;
1.259 misha 306: strings: STRING | strings ';' STRING { $$=$1; P(*$$, *$3); };
1.10 paf 307:
308: maybe_comment: empty | STRING;
1.1 paf 309:
310: /* codes */
311:
1.10 paf 312: maybe_codes: empty | codes;
313:
1.259 misha 314: codes: code | codes code { $$=$1; P(*$$, *$2); };
1.81 paf 315: code: write_string | action;
1.209 paf 316: action: get | put | call;
1.1 paf 317:
318: /* get */
319:
1.64 paf 320: get: get_value {
1.238 misha 321: $$=N();
322: YYSTYPE code=$1;
1.247 misha 323: size_t count=code->count();
1.245 misha 324:
1.235 misha 325: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
1.281 ! moko 326: if(count!=3 || !change_first(*code, OP::OP_VALUE__GET_ELEMENT, /*=>*/OP::OP_VALUE__GET_ELEMENT__WRITE) )
1.238 misha 327: #endif
1.247 misha 328:
1.245 misha 329: #ifdef OPTIMIZE_BYTECODE_GET_SELF_ELEMENT
1.281 ! moko 330: if(count!=3 || !change_first(*code, OP::OP_WITH_SELF__VALUE__GET_ELEMENT, /*=>*/OP::OP_WITH_SELF__VALUE__GET_ELEMENT__WRITE) )
1.245 misha 331: #endif
332:
1.239 misha 333: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_ELEMENT
1.281 ! moko 334: if(count!=5 || !change_first(*code, OP::OP_GET_OBJECT_ELEMENT, /*=>*/OP::OP_GET_OBJECT_ELEMENT__WRITE) )
1.239 misha 335: #endif
336:
337: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_VAR_ELEMENT
1.281 ! moko 338: if(count!=5 || !change_first(*code, OP::OP_GET_OBJECT_VAR_ELEMENT, /*=>*/OP::OP_GET_OBJECT_VAR_ELEMENT__WRITE) )
1.238 misha 339: #endif
1.267 misha 340:
341: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT__SPECIAL
1.281 ! moko 342: if(!change(*code, count-1/* last */, OP::OP_GET_ELEMENT__SPECIAL, /*=>*/OP::OP_GET_ELEMENT__SPECIAL__WRITE) )
1.267 misha 343: #endif
344:
1.247 misha 345: {
1.281 ! moko 346: change_or_append(*code, count-1 /* last */, OP::OP_GET_ELEMENT, /*=>*/OP::OP_GET_ELEMENT__WRITE, /*or */OP::OP_WRITE_VALUE ); /* value=pop; wcontext.write(value) */
1.246 misha 347: }
1.247 misha 348:
1.238 misha 349: P(*$$, *code);
1.1 paf 350: };
1.259 misha 351: get_value: '$' get_name_value { $$=$2; };
1.64 paf 352: get_name_value: name_without_curly_rdive EON | name_in_curly_rdive;
1.259 misha 353: name_in_curly_rdive: '{' name_without_curly_rdive '}' { $$=$2; };
1.44 paf 354: name_without_curly_rdive:
355: name_without_curly_rdive_read
356: | name_without_curly_rdive_class;
1.19 paf 357: name_without_curly_rdive_read: name_without_curly_rdive_code {
1.206 paf 358: $$=N();
1.238 misha 359: YYSTYPE diving_code=$1;
1.239 misha 360: size_t count=diving_code->count();
1.247 misha 361:
362: if(maybe_make_self(*$$, *diving_code, count)) {
363: // $self.
364: } else
1.239 misha 365:
366: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_ELEMENT
1.247 misha 367: if(maybe_make_get_object_element(*$$, *diving_code, count)){
1.245 misha 368: // optimization for $object.field + ^object.method[
1.247 misha 369: } else
1.238 misha 370: #endif
1.239 misha 371:
372: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_VAR_ELEMENT
1.247 misha 373: if(maybe_make_get_object_var_element(*$$, *diving_code, count)){
1.245 misha 374: // optimization for $object.$var
1.247 misha 375: } else
1.238 misha 376: #endif
1.239 misha 377:
378: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
1.281 ! moko 379: if(count>=4 && (*diving_code)[0].code==OP::OP_VALUE && (*diving_code)[3].code==OP::OP_GET_ELEMENT ){
1.248 misha 380: // optimization
1.239 misha 381: O(*$$,
1.247 misha 382: (PC.in_call_value && count==4)
1.239 misha 383: ? OP::OP_VALUE__GET_ELEMENT_OR_OPERATOR // ^object[ : OP_VALUE+origin+string+OP_GET_ELEMENT => OP_VALUE__GET_ELEMENT_OR_OPERATOR+origin+string
384: : OP::OP_VALUE__GET_ELEMENT // $object : OP_VALUE+origin+string+OP_GET_ELEMENT => OP_VALUE__GET_ELEMENT+origin+string
385: );
386: P(*$$, *diving_code, 1/*offset*/, 2/*limit*/); // copy origin+value
1.247 misha 387: if(count>4)
388: P(*$$, *diving_code, 4); // copy tail
1.239 misha 389: } else {
390: O(*$$, OP::OP_WITH_READ); /* stack: starting context */
391: P(*$$, *diving_code);
392: }
1.233 misha 393: #else
1.247 misha 394: {
1.238 misha 395: O(*$$, OP::OP_WITH_READ); /* stack: starting context */
1.179 paf 396:
1.238 misha 397: // ^if OP_ELEMENT => ^if OP_ELEMENT_OR_OPERATOR
398: // optimized OP_VALUE+origin+string+OP_GET_ELEMENT. => OP_VALUE+origin+string+OP_GET_ELEMENT_OR_OPERATOR.
1.239 misha 399: if(PC.in_call_value && count==4)
400: diving_code->put(count-1, OP::OP_GET_ELEMENT_OR_OPERATOR);
1.206 paf 401: P(*$$, *diving_code);
1.239 misha 402: }
1.233 misha 403: #endif
1.22 paf 404: /* diving code; stack: current context */
1.1 paf 405: };
1.259 misha 406: name_without_curly_rdive_class: class_prefix name_without_curly_rdive_code { $$=$1; P(*$$, *$2); };
407: name_without_curly_rdive_code: name_advance2 | name_path name_advance2 { $$=$1; P(*$$, *$2); };
1.1 paf 408:
409: /* put */
410:
1.81 paf 411: put: '$' name_expr_wdive construct {
1.241 misha 412: $$=N();
1.244 misha 413: #ifdef OPTIMIZE_BYTECODE_CONSTRUCT
414: if(maybe_optimize_construct(*$$, *$2, *$3)){
1.246 misha 415: // $a(expr), $.a(expr), $a[value], $.a[value], $self.a[value], $self.a(expr)
1.241 misha 416: } else
417: #endif
418: {
419: P(*$$, *$2); /* stack: context,name */
420: P(*$$, *$3); /* stack: context,name,constructor_value */
421: }
1.20 paf 422: };
1.44 paf 423: name_expr_wdive:
1.157 parser 424: name_expr_wdive_root
425: | name_expr_wdive_write
1.44 paf 426: | name_expr_wdive_class;
1.157 parser 427: name_expr_wdive_root: name_expr_dive_code {
1.206 paf 428: $$=N();
1.238 misha 429: YYSTYPE diving_code=$1;
1.247 misha 430: size_t count=diving_code->count();
431:
432: if(maybe_make_self(*$$, *diving_code, count)) {
433: // $self.
434: } else
435: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
1.281 ! moko 436: if(count>=4 && (*diving_code)[0].code==OP::OP_VALUE && (*diving_code)[3].code==OP::OP_GET_ELEMENT ){
1.247 misha 437: O(*$$, OP::OP_WITH_ROOT__VALUE__GET_ELEMENT);
438: P(*$$, *diving_code, 1/*offset*/, 2/*limit*/); // copy origin+value
439: if(count>4)
440: P(*$$, *diving_code, 4); // tail
441: } else
442: #endif
443: {
1.229 misha 444: O(*$$, OP::OP_WITH_ROOT); /* stack: starting context */
1.206 paf 445: P(*$$, *diving_code);
1.23 paf 446: }
447: /* diving code; stack: current context */
1.156 parser 448: };
1.157 parser 449: name_expr_wdive_write: '.' name_expr_dive_code {
1.206 paf 450: $$=N();
1.229 misha 451: O(*$$, OP::OP_WITH_WRITE); /* stack: starting context */
1.206 paf 452: P(*$$, *$2); /* diving code; stack: context,name */
1.20 paf 453: };
1.259 misha 454: name_expr_wdive_class: class_prefix name_expr_dive_code { $$=$1; P(*$$, *$2); };
1.20 paf 455:
1.244 misha 456: construct:
1.163 parser 457: construct_square
458: | construct_round
459: | construct_curly
1.149 parser 460: ;
1.211 paf 461: construct_square: '[' {
462: // allow $result_or_other_variable[ letters here any time ]
463: *reinterpret_cast<bool*>(&$$)=PC.explicit_result; PC.explicit_result=false;
464: } any_constructor_code_value {
1.213 paf 465: PC.explicit_result=*reinterpret_cast<bool*>(&$2);
1.211 paf 466: } ']' {
1.149 parser 467: // stack: context, name
1.211 paf 468: $$=$3; // stack: context, name, value
1.229 misha 469: O(*$$, OP::OP_CONSTRUCT_VALUE); /* value=pop; name=pop; context=pop; construct(context,name,value) */
1.81 paf 470: }
471: ;
1.149 parser 472: construct_round: '(' expr_value ')' {
1.206 paf 473: $$=N();
1.229 misha 474: O(*$$, OP::OP_PREPARE_TO_EXPRESSION);
1.149 parser 475: // stack: context, name
1.206 paf 476: P(*$$, *$2); // stack: context, name, value
1.229 misha 477: O(*$$, OP::OP_CONSTRUCT_EXPR); /* value=pop->as_expr_result; name=pop; context=pop; construct(context,name,value) */
1.81 paf 478: }
1.52 paf 479: ;
1.149 parser 480: construct_curly: '{' maybe_codes '}' {
481: // stack: context, name
1.206 paf 482: $$=N();
1.229 misha 483: OA(*$$, OP::OP_CURLY_CODE__CONSTRUCT, $2); /* code=pop; name=pop; context=pop; construct(context,name,junction(code)) */
1.149 parser 484: };
485:
1.55 paf 486: any_constructor_code_value:
1.261 moko 487: empty_value /* optimized $var[] case */
1.52 paf 488: | STRING /* optimized $var[STRING] case */
1.55 paf 489: | constructor_code_value /* $var[something complex] */
1.1 paf 490: ;
1.55 paf 491: constructor_code_value: constructor_code {
1.206 paf 492: $$=N();
1.229 misha 493: OA(*$$, OP::OP_OBJECT_POOL, $1); /* stack: empty write context */
1.183 paf 494: /* some code that writes to that context */
495: /* context=pop; stack: context.value() */
1.1 paf 496: };
1.55 paf 497: constructor_code: codes__excluding_sole_str_literal;
1.259 misha 498: codes__excluding_sole_str_literal: action | code codes { $$=$1; P(*$$, *$2); };
1.27 paf 499:
1.1 paf 500: /* call */
501:
1.66 paf 502: call: call_value {
1.267 misha 503: size_t count=$1->count();
1.238 misha 504: #ifdef OPTIMIZE_BYTECODE_CUT_REM_OPERATOR
1.267 misha 505: if(count)
1.238 misha 506: #endif
507: {
508: $$=$1; /* stack: value */
1.281 ! moko 509: if(!change_first(*$$, OP::OP_CONSTRUCT_OBJECT, /*=>*/ OP::OP_CONSTRUCT_OBJECT__WRITE))
! 510: change_or_append(*$$, count-2 /* second last */, OP::OP_CALL, /*=>*/ OP::OP_CALL__WRITE, /*or */ OP::OP_WRITE_VALUE); /* value=pop; wcontext.write(value) */
1.238 misha 511: }
1.66 paf 512: };
1.177 paf 513: call_value: '^' {
1.281 ! moko 514: PC.in_call_value=true;
! 515: }
! 516: call_name {
! 517: PC.in_call_value=false;
! 518: }
! 519: store_params EON { /* ^field.$method{vasya} */
1.238 misha 520: #ifdef OPTIMIZE_BYTECODE_CUT_REM_OPERATOR
1.242 misha 521: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
1.238 misha 522: const String* operator_name=LA2S(*$3, 0, OP::OP_VALUE__GET_ELEMENT_OR_OPERATOR);
1.242 misha 523: #else
524: const String* operator_name=LA2S(*$3, 1);
525: #endif
1.279 moko 526: if(operator_name && SYMBOLS_EQ(*operator_name,REM_SYMBOL)){
1.238 misha 527: $$=N();
528: } else
529: #endif
530: {
531: YYSTYPE params_code=$5;
532: if(params_code->count()==3) { // probably [] case. [OP::OP_VALUE+origin+Void]
533: if(Value* value=LA2V(*params_code)) // it is OP_VALUE+origin+value?
1.261 moko 534: if(const String * string=value->get_string())
535: if(string->is_empty()) // value is empty string?
536: params_code=0; // ^zzz[] case. don't append lone empty param.
1.238 misha 537: }
538: /* stack: context, method_junction */
1.249 misha 539:
540: YYSTYPE var_code=$3;
541: if(
542: var_code->count()==8
543: && (*var_code)[0].code==OP::OP_VALUE__GET_CLASS
544: && (*var_code)[3].code==OP::OP_PREPARE_TO_CONSTRUCT_OBJECT
545: && (*var_code)[4].code==OP::OP_VALUE
1.272 moko 546: #ifdef FEATURE_GET_ELEMENT4CALL
547: && (*var_code)[7].code==OP::OP_GET_ELEMENT4CALL
548: #else
1.249 misha 549: && (*var_code)[7].code==OP::OP_GET_ELEMENT
1.272 moko 550: #endif
1.249 misha 551: ){
1.267 misha 552: $$=N();
1.249 misha 553: O(*$$, OP::OP_CONSTRUCT_OBJECT);
554: P(*$$, *var_code, 1/*offset*/, 2/*limit*/); // class name
555: P(*$$, *var_code, 5/*offset*/, 2/*limit*/); // constructor name
556: OA(*$$, params_code);
557: } else
558: {
559: $$=var_code; /* with_xxx,diving code; stack: context,method_junction */
560: OA(*$$, OP::OP_CALL, params_code); // method_frame=make frame(pop junction); ncontext=pop; call(ncontext,method_frame) stack: value
561: }
1.238 misha 562: }
1.1 paf 563: };
564:
1.272 moko 565: call_name: name_without_curly_rdive {
566: #ifdef FEATURE_GET_ELEMENT4CALL
567: size_t count=$1->count();
568: if(count){
569: $$=$1;
570: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_ELEMENT
571: !(count==5 && change_first(*$$, OP::OP_GET_OBJECT_ELEMENT, OP::OP_GET_OBJECT_ELEMENT4CALL)) &&
572: #endif
573: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_VAR_ELEMENT
574: !(count==5 && change_first(*$$, OP::OP_GET_OBJECT_VAR_ELEMENT, OP::OP_GET_OBJECT_VAR_ELEMENT4CALL)) &&
575: #endif
576: !change(*$$, count-1, OP::OP_GET_ELEMENT, OP::OP_GET_ELEMENT4CALL);
577: }
578: #endif
579: };
1.38 paf 580:
1.259 misha 581: store_params: store_param | store_params store_param { $$=$1; P(*$$, *$2); };
1.69 paf 582: store_param:
583: store_square_param
584: | store_round_param
585: | store_curly_param
1.31 paf 586: ;
1.210 paf 587: store_square_param: '[' {
1.211 paf 588: // allow ^call[ letters here any time ]
1.210 paf 589: *reinterpret_cast<bool*>(&$$)=PC.explicit_result; PC.explicit_result=false;
590: } store_code_param_parts {
1.213 paf 591: PC.explicit_result=*reinterpret_cast<bool*>(&$2);
1.259 misha 592: } ']' {$$=$3;};
593: store_round_param: '(' store_expr_param_parts ')' {$$=$2;};
594: store_curly_param: '{' store_curly_param_parts '}' {$$=$2;};
1.69 paf 595: store_code_param_parts:
596: store_code_param_part
1.259 misha 597: | store_code_param_parts ';' store_code_param_part { $$=$1; P(*$$, *$3); }
1.69 paf 598: ;
599: store_expr_param_parts:
600: store_expr_param_part
1.259 misha 601: | store_expr_param_parts ';' store_expr_param_part { $$=$1; P(*$$, *$3); }
1.69 paf 602: ;
1.94 paf 603: store_curly_param_parts:
604: store_curly_param_part
1.259 misha 605: | store_curly_param_parts ';' store_curly_param_part { $$=$1; P(*$$, *$3); }
1.94 paf 606: ;
1.120 paf 607: store_code_param_part: code_param_value {
1.32 paf 608: $$=$1;
1.120 paf 609: };
1.214 paf 610: store_expr_param_part: expr_value {
611: YYSTYPE expr_code=$1;
1.215 paf 612: if(expr_code->count()==3
1.234 misha 613: && (*expr_code)[0].code==OP::OP_VALUE) { // optimizing (double/bool/incidently 'string' too) case. [OP::OP_VALUE+origin+Double]. no evaluating
1.214 paf 614: $$=expr_code;
615: } else {
1.238 misha 616: YYSTYPE code=N();
1.229 misha 617: O(*code, OP::OP_PREPARE_TO_EXPRESSION);
1.214 paf 618: P(*code, *expr_code);
1.229 misha 619: O(*code, OP::OP_WRITE_EXPR_RESULT);
1.214 paf 620: $$=N();
1.229 misha 621: OA(*$$, OP::OP_EXPR_CODE__STORE_PARAM, code);
1.214 paf 622: }
1.69 paf 623: };
1.94 paf 624: store_curly_param_part: maybe_codes {
1.206 paf 625: $$=N();
1.229 misha 626: OA(*$$, OP::OP_CURLY_CODE__STORE_PARAM, $1);
1.94 paf 627: };
1.120 paf 628: code_param_value:
1.261 moko 629: empty_value /* optimized [;...] case */
1.120 paf 630: | STRING /* optimized [STRING] case */
631: | constructor_code_value /* [something complex] */
632: ;
1.1 paf 633:
634: /* name */
635:
1.259 misha 636: name_expr_dive_code: name_expr_value | name_path name_expr_value { $$=$1; P(*$$, *$2); };
1.1 paf 637:
1.259 misha 638: name_path: name_step | name_path name_step { $$=$1; P(*$$, *$2); };
1.1 paf 639: name_step: name_advance1 '.';
640: name_advance1: name_expr_value {
1.177 paf 641: // we know that name_advance1 not called from ^xxx context
642: // so we'll not check for operator call possibility as we do in name_advance2
643:
1.1 paf 644: /* stack: context */
645: $$=$1; /* stack: context,name */
1.267 misha 646: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT__SPECIAL
647: O(*$$, is_special_element(*$$) ? OP::OP_GET_ELEMENT__SPECIAL : OP::OP_GET_ELEMENT);
648: #else
1.229 misha 649: O(*$$, OP::OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */
1.267 misha 650: #endif
1.1 paf 651: };
652: name_advance2: name_expr_value {
653: /* stack: context */
654: $$=$1; /* stack: context,name */
1.267 misha 655: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT__SPECIAL
656: O(*$$, is_special_element(*$$) ? OP::OP_GET_ELEMENT__SPECIAL : OP::OP_GET_ELEMENT);
657: #else
1.229 misha 658: O(*$$, OP::OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */
1.267 misha 659: #endif
1.1 paf 660: }
1.4 paf 661: | STRING BOGUS
1.1 paf 662: ;
663: name_expr_value:
1.4 paf 664: STRING /* subname_is_const */
1.1 paf 665: | name_expr_subvar_value /* $subname_is_var_value */
1.160 parser 666: | name_expr_with_subvar_value /* xxx$part_of_subname_is_var_value */
1.166 parser 667: | name_square_code_value /* [codes] */
1.1 paf 668: ;
669: name_expr_subvar_value: '$' subvar_ref_name_rdive {
670: $$=$2;
1.229 misha 671: O(*$$, OP::OP_GET_ELEMENT);
1.1 paf 672: };
1.4 paf 673: name_expr_with_subvar_value: STRING subvar_get_writes {
1.238 misha 674: YYSTYPE code;
1.183 paf 675: {
1.206 paf 676: change_string_literal_to_write_string_literal(*(code=$1));
677: P(*code, *$2);
1.183 paf 678: }
1.206 paf 679: $$=N();
1.229 misha 680: OA(*$$, OP::OP_STRING_POOL, code);
1.1 paf 681: };
1.212 paf 682: name_square_code_value: '[' {
683: // allow $result_or_other_variable[ letters here any time ]
684: *reinterpret_cast<bool*>(&$$)=PC.explicit_result; PC.explicit_result=false;
685: } codes {
1.213 paf 686: PC.explicit_result=*reinterpret_cast<bool*>(&$2);
1.212 paf 687: } ']' {
1.206 paf 688: $$=N();
1.267 misha 689: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT__SPECIAL
690: if(!maybe_append_simple_diving_code(*$$, *$3))
691: #endif
692: {
1.281 ! moko 693: OA(*$$, OP::OP_OBJECT_POOL, $3); /* stack: empty write context */
! 694: /* some code that writes to that context */
! 695: /* context=pop; stack: context.value() */
1.267 misha 696: }
1.160 parser 697: };
1.154 parser 698: subvar_ref_name_rdive: STRING {
1.206 paf 699: $$=N();
1.229 misha 700: O(*$$, OP::OP_WITH_READ);
1.206 paf 701: P(*$$, *$1);
1.1 paf 702: };
1.259 misha 703: subvar_get_writes: subvar__get_write | subvar_get_writes subvar__get_write { $$=$1; P(*$$, *$2); };
1.1 paf 704: subvar__get_write: '$' subvar_ref_name_rdive {
705: $$=$2;
1.229 misha 706: O(*$$, OP::OP_GET_ELEMENT__WRITE);
1.42 paf 707: };
708:
1.154 parser 709: class_prefix:
710: class_static_prefix
711: | class_constructor_prefix
712: ;
1.155 parser 713: class_static_prefix: STRING ':' {
714: $$=$1; // stack: class name string
1.206 paf 715: if(*LA2S(*$$) == BASE_NAME) { // pseudo BASE class
716: if(VStateless_class* base=PC.cclass->base_class()) {
1.275 moko 717: change_string_literal_value(*$$, *new String(base->type()));
1.189 paf 718: } else {
719: strcpy(PC.error, "no base class declared");
720: YYERROR;
721: }
722: }
1.238 misha 723: // optimized OP_VALUE+origin+string+OP_GET_CLASS => OP_VALUE__GET_CLASS+origin+string
1.267 misha 724: change_first(*$$, OP::OP_VALUE, OP::OP_VALUE__GET_CLASS);
1.155 parser 725: };
726: class_constructor_prefix: class_static_prefix ':' {
1.154 parser 727: $$=$1;
1.180 paf 728: if(!PC.in_call_value) {
1.154 parser 729: strcpy(PC.error, ":: not allowed here");
730: YYERROR;
731: }
1.229 misha 732: O(*$$, OP::OP_PREPARE_TO_CONSTRUCT_OBJECT);
1.1 paf 733: };
734:
1.53 paf 735:
1.56 paf 736: /* expr */
1.53 paf 737:
1.214 paf 738: expr_value: expr;
1.56 paf 739: expr:
1.214 paf 740: double_or_STRING
1.216 paf 741: | true_value
742: | false_value
1.64 paf 743: | get_value
1.66 paf 744: | call_value
1.259 misha 745: | '"' string_inside_quotes_value '"' { $$ = $2; }
746: | '\'' string_inside_quotes_value '\'' { $$ = $2; }
1.60 paf 747: | '(' expr ')' { $$ = $2; }
748: /* stack: operand // stack: @operand */
1.259 misha 749: | '-' expr %prec NUNARY { $$=$2; O(*$$, OP::OP_NEG); }
750: | '+' expr %prec NUNARY { $$=$2; }
751: | '~' expr { $$=$2; O(*$$, OP::OP_INV); }
752: | '!' expr { $$=$2; O(*$$, OP::OP_NOT); }
753: | "def" expr { $$=$2; O(*$$, OP::OP_DEF); }
754: | "in" expr { $$=$2; O(*$$, OP::OP_IN); }
755: | "-f" expr { $$=$2; O(*$$, OP::OP_FEXISTS); }
756: | "-d" expr { $$=$2; O(*$$, OP::OP_DEXISTS); }
1.60 paf 757: /* stack: a,b // stack: a@b */
1.259 misha 758: | expr '-' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_SUB); }
759: | expr '+' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_ADD); }
760: | expr '*' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_MUL); }
761: | expr '/' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_DIV); }
762: | expr '%' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_MOD); }
763: | expr '\\' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_INTDIV); }
764: | expr "<<" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_SL); }
765: | expr ">>" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_SR); }
766: | expr '&' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_AND); }
767: | expr '|' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_OR); }
768: | expr "!|" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_XOR); }
769: | expr "&&" expr { $$=$1; OA(*$$, OP::OP_NESTED_CODE, $3); O(*$$, OP::OP_LOG_AND); }
770: | expr "||" expr { $$=$1; OA(*$$, OP::OP_NESTED_CODE, $3); O(*$$, OP::OP_LOG_OR); }
771: | expr "!||" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_LOG_XOR); }
772: | expr '<' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_LT); }
773: | expr '>' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_GT); }
774: | expr "<=" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_LE); }
775: | expr ">=" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_GE); }
776: | expr "==" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_EQ); }
777: | expr "!=" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_NE); }
778: | expr "lt" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_LT); }
779: | expr "gt" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_GT); }
780: | expr "le" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_LE); }
781: | expr "ge" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_GE); }
782: | expr "eq" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_EQ); }
783: | expr "ne" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_NE); }
784: | expr "is" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_IS); }
1.56 paf 785: ;
1.214 paf 786:
787: double_or_STRING: STRING {
1.238 misha 788: // optimized OP_STRING => OP_VALUE for doubles
1.214 paf 789: maybe_change_string_literal_to_double_literal(*($$=$1));
790: };
1.55 paf 791:
1.65 paf 792: string_inside_quotes_value: maybe_codes {
1.238 misha 793: #ifdef OPTIMIZE_BYTECODE_STRING_POOL
794: // it brakes ^if(" 09 "){...}
795: YYSTYPE code=$1;
796: $$=N();
1.267 misha 797: if(code->count()==3 && change_first(*code, OP::OP_STRING__WRITE, OP::OP_VALUE)){
1.238 misha 798: // optimized OP_STRING__WRITE+origin+value => OP_VALUE+origin+value without starting OP_STRING_POOL
799: P(*$$, *code);
800: } else {
801: OA(*$$, OP::OP_STRING_POOL, code); /* stack: empty write context */
802: }
803: #else
1.206 paf 804: $$=N();
1.229 misha 805: OA(*$$, OP::OP_STRING_POOL, $1); /* stack: empty write context */
1.238 misha 806: #endif
1.183 paf 807: /* some code that writes to that context */
808: /* context=pop; stack: context.get_string() */
1.53 paf 809: };
1.1 paf 810:
1.27 paf 811: /* basics */
1.1 paf 812:
1.81 paf 813: write_string: STRING {
1.238 misha 814: // optimized OP_STRING+OP_WRITE_VALUE => OP_STRING__WRITE
1.259 misha 815: change_string_literal_to_write_string_literal(*($$=$1));
1.54 paf 816: };
817:
1.261 moko 818: empty_value: /* empty */ { $$=VL(/*we know that we will not change it*/const_cast<VString*>(&vempty), 0, 0, 0); }
1.259 misha 819: true_value: "true" { $$ = VL(/*we know that we will not change it*/const_cast<VBool*>(&vtrue), 0, 0, 0); }
820: false_value: "false" { $$ = VL(/*we know that we will not change it*/const_cast<VBool*>(&vfalse), 0, 0, 0); }
1.216 paf 821:
1.259 misha 822: empty: /* empty */ { $$=N(); };
1.1 paf 823:
824: %%
1.105 paf 825: #endif
1.1 paf 826:
827: /*
828: 000$111(2222)00
829: 000$111{3333}00
1.9 paf 830: $,^: push,=0
1.1 paf 831: 1:( { break=pop
832: 2:( ) pop
833: 3:{ } pop
834:
835: 000^111(2222)4444{33333}4000
1.9 paf 836: $,^: push,=0
1.1 paf 837: 1:( { break=pop
838: 2:( )=4
839: 3:{ }=4
840: 4:[^({]=pop
841: */
842:
1.206 paf 843: inline void ungetc(Parse_control& pc, uint last_line_end_col) {
844: pc.source--;
845: if(pc.pos.col==0) {
846: --pc.pos.line; pc.pos.col=last_line_end_col;
847: } else
848: --pc.pos.col;
849:
850: }
851: static int yylex(YYSTYPE *lvalp, void *apc) {
852: register Parse_control& pc=*static_cast<Parse_control*>(apc);
853:
854: #define lexical_brackets_nestage pc.brackets_nestages[pc.ls_sp]
1.48 paf 855: #define RC {result=c; goto break2; }
1.1 paf 856:
1.206 paf 857: register int c;
858: int result;
1.1 paf 859:
1.206 paf 860: if(pc.pending_state) {
861: result=pc.pending_state;
862: pc.pending_state=0;
1.1 paf 863: return result;
864: }
865:
1.206 paf 866: const char *begin=pc.source;
867: Pos begin_pos=pc.pos;
1.91 paf 868: const char *end;
1.67 paf 869: int skip_analized=0;
1.50 paf 870: while(true) {
1.206 paf 871: c=*(end=(pc.source++));
872: // fprintf(stderr, "\nchar: %c %02X; nestage: %d, sp=%d", c, c, lexical_brackets_nestage, pc.sp);
1.1 paf 873:
1.208 paf 874: if(c=='\n')
1.206 paf 875: pc.pos_next_line();
1.208 paf 876: else
1.206 paf 877: pc.pos_next_c(c);
1.208 paf 878: // fprintf(stderr, "\nchar: %c file(%d:%d)", c, pc.pos.line, pc.pos.col);
1.73 paf 879:
1.208 paf 880: if(pc.pos.col==0+1 && c=='@') {
1.206 paf 881: if(pc.ls==LS_DEF_SPECIAL_BODY) {
1.175 paf 882: // @SPECIAL
883: // ...
884: // @<here =
1.206 paf 885: pop_LS(pc); // exiting from LS_DEF_SPECIAL_BODY state
1.175 paf 886: } // continuing checks
1.206 paf 887: if(pc.ls==LS_USER) {
888: push_LS(pc, LS_DEF_NAME);
1.171 parser 889: RC;
1.175 paf 890: } else // @ in first column inside some code [when could that be?]
1.171 parser 891: result=BAD_METHOD_DECL_START;
892: goto break2;
1.209 paf 893: }
894: if(c=='^') {
1.206 paf 895: if(pc.ls==LS_METHOD_AFTER) {
1.203 paf 896: // handle after-method situation
1.206 paf 897: pop_LS(pc);
1.203 paf 898: result=EON;
899: skip_analized=-1; // return to punctuation afterwards to assure it's literality
900: goto break2;
901: }
1.206 paf 902: switch(pc.ls) {
1.169 parser 903: case LS_EXPRESSION_VAR_NAME_WITH_COLON:
904: case LS_EXPRESSION_VAR_NAME_WITHOUT_COLON:
905: case LS_VAR_NAME_SIMPLE_WITH_COLON:
906: case LS_VAR_NAME_SIMPLE_WITHOUT_COLON:
907: case LS_VAR_NAME_CURLY:
908: case LS_METHOD_NAME:
1.194 paf 909: case LS_USER_COMMENT:
1.169 parser 910: case LS_DEF_COMMENT:
911: // no literals in names, please
912: break;
913: default:
1.206 paf 914: switch(*pc.source) {
1.165 parser 915: // ^escaping some punctuators
1.228 misha 916: case '^': case '$': case ';': case '@':
1.126 paf 917: case '(': case ')':
1.48 paf 918: case '[': case ']':
919: case '{': case '}':
1.172 parser 920: case '"': case ':':
1.40 paf 921: if(end!=begin) {
1.206 paf 922: if(!pc.string_start)
923: pc.string_start=begin_pos;
1.40 paf 924: // append piece till ^
1.206 paf 925: pc.string.append_strdup_know_length(begin, end-begin);
1.40 paf 926: }
1.63 paf 927: // reset piece 'begin' position & line
1.206 paf 928: begin=pc.source; // ->punctuation
929: begin_pos=pc.pos;
1.203 paf 930: // skip over _ after ^
1.206 paf 931: pc.source++; pc.pos.col++;
1.203 paf 932: // skip analysis = forced literal
933: continue;
1.114 paf 934:
935: // converting ^#HH into char(hex(HH))
936: case '#':
937: if(end!=begin) {
1.206 paf 938: if(!pc.string_start)
939: pc.string_start=begin_pos;
1.114 paf 940: // append piece till ^
1.206 paf 941: pc.string.append_strdup_know_length(begin, end-begin);
1.114 paf 942: }
943: // #HH ?
1.228 misha 944: if(pc.source[1] && isxdigit(pc.source[1]) && pc.source[2] && isxdigit(pc.source[2])) {
1.218 paf 945: char c=(char)(
1.206 paf 946: hex_value[(unsigned char)pc.source[1]]*0x10+
1.218 paf 947: hex_value[(unsigned char)pc.source[2]]);
1.206 paf 948: if(c==0) {
1.114 paf 949: result=BAD_HEX_LITERAL;
950: goto break2; // wrong hex value[no ^#00 chars allowed]: bail out
951: }
952: // append char(hex(HH))
1.206 paf 953: pc.string.append(c);
1.114 paf 954: // skip over ^#HH
1.206 paf 955: pc.source+=3;
956: pc.pos.col+=3;
1.114 paf 957: // reset piece 'begin' position & line
1.206 paf 958: begin=pc.source; // ->after ^#HH
959: begin_pos=pc.pos;
1.203 paf 960: // skip analysis = forced literal
1.114 paf 961: continue;
962: }
1.228 misha 963: // just escaped char
964: // reset piece 'begin' position & line
965: begin=pc.source;
966: begin_pos=pc.pos;
967: // skip over _ after ^
968: pc.source++; pc.pos.col++;
969: // skip analysis = forced literal
970: continue;
1.1 paf 971: }
1.169 parser 972: break;
1.203 paf 973: }
1.169 parser 974: }
1.113 paf 975: // #comment start skipping
1.206 paf 976: if(c=='#' && pc.pos.col==1) {
1.112 paf 977: if(end!=begin) {
1.206 paf 978: if(!pc.string_start)
979: pc.string_start=begin_pos;
1.112 paf 980: // append piece till #
1.206 paf 981: pc.string.append_strdup_know_length(begin, end-begin);
1.112 paf 982: }
983: // fall into COMMENT lexical state [wait for \n]
1.206 paf 984: push_LS(pc, LS_USER_COMMENT);
1.175 paf 985: continue;
1.112 paf 986: }
1.206 paf 987: switch(pc.ls) {
1.10 paf 988:
989: // USER'S = NOT OURS
1.1 paf 990: case LS_USER:
1.206 paf 991: case LS_NAME_SQUARE_PART: // name.[here].xxx
992: if(pc.trim_bof)
1.153 parser 993: switch(c) {
994: case '\n': case ' ': case '\t':
1.206 paf 995: begin=pc.source;
996: begin_pos=pc.pos;
1.152 parser 997: continue; // skip it
1.153 parser 998: default:
1.206 paf 999: pc.trim_bof=false;
1.152 parser 1000: }
1.48 paf 1001: switch(c) {
1002: case '$':
1.206 paf 1003: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1004: RC;
1005: case '^':
1.206 paf 1006: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1007: RC;
1.166 parser 1008: case ']':
1.206 paf 1009: if(pc.ls==LS_NAME_SQUARE_PART)
1.166 parser 1010: if(--lexical_brackets_nestage==0) {// $name.[co<]?>de<]?>
1.206 paf 1011: pop_LS(pc); // $name.[co<]>de<]!>
1.166 parser 1012: RC;
1013: }
1.160 parser 1014: break;
1.166 parser 1015: case '[': // $name.[co<[>de]
1.206 paf 1016: if(pc.ls==LS_NAME_SQUARE_PART)
1.166 parser 1017: lexical_brackets_nestage++;
1.161 parser 1018: break;
1.112 paf 1019: }
1.209 paf 1020: if(pc.explicit_result && c)
1021: switch(c) {
1.276 moko 1022: default:
1023: pc.string.append(c);
1.209 paf 1024: case '\n': case ' ': case '\t':
1025: begin=pc.source;
1026: begin_pos=pc.pos;
1.276 moko 1027: continue;
1.209 paf 1028: }
1.112 paf 1029: break;
1030:
1031: // #COMMENT
1.194 paf 1032: case LS_USER_COMMENT:
1.112 paf 1033: if(c=='\n') {
1034: // skip comment
1.206 paf 1035: begin=pc.source;
1036: begin_pos=pc.pos;
1.112 paf 1037:
1.206 paf 1038: pop_LS(pc);
1.112 paf 1039: continue;
1.1 paf 1040: }
1.48 paf 1041: break;
1042:
1043: // STRING IN EXPRESSION
1.145 parser 1044: case LS_EXPRESSION_STRING_QUOTED:
1045: case LS_EXPRESSION_STRING_APOSTROFED:
1.48 paf 1046: switch(c) {
1047: case '"':
1.145 parser 1048: case '\'':
1049: if(
1.270 moko 1050: (pc.ls == LS_EXPRESSION_STRING_QUOTED && c=='"') ||
1051: (pc.ls == LS_EXPRESSION_STRING_APOSTROFED && c=='\'') ) {
1.206 paf 1052: pop_LS(pc); //"abc". | 'abc'.
1.145 parser 1053: RC;
1054: }
1055: break;
1.48 paf 1056: case '$':
1.206 paf 1057: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1058: RC;
1059: case '^':
1.206 paf 1060: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1061: RC;
1.10 paf 1062: }
1063: break;
1064:
1065: // METHOD DEFINITION
1066: case LS_DEF_NAME:
1.48 paf 1067: switch(c) {
1068: case '[':
1.206 paf 1069: pc.ls=LS_DEF_PARAMS;
1.48 paf 1070: RC;
1071: case '\n':
1.206 paf 1072: pc.ls=LS_DEF_SPECIAL_BODY;
1.48 paf 1073: RC;
1.10 paf 1074: }
1075: break;
1.48 paf 1076:
1.10 paf 1077: case LS_DEF_PARAMS:
1.48 paf 1078: switch(c) {
1.192 paf 1079: case '$': // common error
1.193 paf 1080: result=BAD_METHOD_PARAMETER_NAME_CHARACTER;
1081: goto break2;
1.48 paf 1082: case ';':
1083: RC;
1084: case ']':
1.206 paf 1085: pc.ls=*pc.source=='['?LS_DEF_LOCALS:LS_DEF_COMMENT;
1.48 paf 1086: RC;
1.49 paf 1087: case '\n': // wrong. bailing out
1.206 paf 1088: pop_LS(pc);
1.48 paf 1089: RC;
1.10 paf 1090: }
1091: break;
1.48 paf 1092:
1.10 paf 1093: case LS_DEF_LOCALS:
1.48 paf 1094: switch(c) {
1095: case '[':
1096: case ';':
1097: RC;
1098: case ']':
1.206 paf 1099: pc.ls=LS_DEF_COMMENT;
1.48 paf 1100: RC;
1101: case '\n': // wrong. bailing out
1.206 paf 1102: pop_LS(pc);
1.48 paf 1103: RC;
1.10 paf 1104: }
1105: break;
1.48 paf 1106:
1.10 paf 1107: case LS_DEF_COMMENT:
1108: if(c=='\n') {
1.206 paf 1109: pop_LS(pc);
1.48 paf 1110: RC;
1.37 paf 1111: }
1112: break;
1113:
1.48 paf 1114: case LS_DEF_SPECIAL_BODY:
1.175 paf 1115: if(c=='\n')
1.48 paf 1116: RC;
1117: break;
1118:
1119: // (EXPRESSION)
1.69 paf 1120: case LS_VAR_ROUND:
1121: case LS_METHOD_ROUND:
1.48 paf 1122: switch(c) {
1123: case ')':
1.270 moko 1124: if(--lexical_brackets_nestage==0) {
1.206 paf 1125: if(pc.ls==LS_METHOD_ROUND) // method round param ended
1126: pc.ls=LS_METHOD_AFTER; // look for method end
1127: else // pc.ls==LS_VAR_ROUND // variable constructor ended
1128: pop_LS(pc); // return to normal life
1.270 moko 1129: }
1.48 paf 1130: RC;
1.194 paf 1131: case '#': // comment start skipping
1132: if(end!=begin) {
1.206 paf 1133: if(!pc.string_start)
1134: pc.string_start=begin_pos;
1.194 paf 1135: // append piece till #
1.206 paf 1136: pc.string.append_strdup_know_length(begin, end-begin);
1.194 paf 1137: }
1138: // fall into COMMENT lexical state [wait for \n]
1.206 paf 1139: push_LS(pc, LS_EXPRESSION_COMMENT);
1.194 paf 1140: lexical_brackets_nestage=1;
1141: continue;
1.48 paf 1142: case '$':
1.206 paf 1143: push_LS(pc, LS_EXPRESSION_VAR_NAME_WITH_COLON);
1.48 paf 1144: RC;
1145: case '^':
1.206 paf 1146: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1147: RC;
1148: case '(':
1149: lexical_brackets_nestage++;
1150: RC;
1.67 paf 1151: case '-':
1.206 paf 1152: switch(*pc.source) {
1.127 paf 1153: case 'f': // -f
1.67 paf 1154: skip_analized=1;
1155: result=FEXISTS;
1.127 paf 1156: goto break2;
1157: case 'd': // -d
1158: skip_analized=1;
1159: result=DEXISTS;
1160: goto break2;
1.191 paf 1161: default: // minus
1.67 paf 1162: result=c;
1.127 paf 1163: goto break2;
1164: }
1.67 paf 1165: goto break2;
1.173 paf 1166: case '+': case '*': case '/': case '%': case '\\':
1.58 paf 1167: case '~':
1.48 paf 1168: case ';':
1169: RC;
1.193 paf 1170: case '&': case '|':
1.206 paf 1171: if(*pc.source==c) { // && ||
1.193 paf 1172: result=c=='&'?LAND:LOR;
1.67 paf 1173: skip_analized=1;
1.58 paf 1174: } else
1175: result=c;
1176: goto break2;
1.193 paf 1177: case '!':
1.206 paf 1178: switch(pc.source[0]) {
1.193 paf 1179: case '|': // !| !||
1180: skip_analized=1;
1.206 paf 1181: if(pc.source[1]=='|') {
1.193 paf 1182: skip_analized++;
1183: result=LXOR;
1184: } else
1185: result=NXOR;
1186: goto break2;
1187: case '=': // !=
1188: skip_analized=1;
1189: result=NNE;
1190: goto break2;
1191: }
1192: RC;
1.195 paf 1193:
1194: case '<': // <<, <=, <
1.206 paf 1195: switch(*pc.source) {
1.195 paf 1196: case '<': // <[<]
1197: skip_analized=1; result=NSL; break;
1198: case '=': // <[=]
1199: skip_analized=1; result=NLE; break;
1200: default: // <[]
1201: result=c; break;
1202: }
1203: goto break2;
1204: case '>': // >>, >=, >
1.206 paf 1205: switch(*pc.source) {
1.195 paf 1206: case '>': // >[>]
1207: skip_analized=1; result=NSR; break;
1208: case '=': // >[=]
1209: skip_analized=1; result=NGE; break;
1210: default: // >[]
1211: result=c; break;
1212: }
1213: goto break2;
1214: case '=': // ==
1.206 paf 1215: switch(*pc.source) {
1.195 paf 1216: case '=': // =[=]
1217: skip_analized=1; result=NEQ; break;
1218: default: // =[]
1219: result=c; break; // not used now
1220: }
1.58 paf 1221: goto break2;
1.195 paf 1222:
1.48 paf 1223: case '"':
1.206 paf 1224: push_LS(pc, LS_EXPRESSION_STRING_QUOTED);
1.145 parser 1225: RC;
1226: case '\'':
1.206 paf 1227: push_LS(pc, LS_EXPRESSION_STRING_APOSTROFED);
1.48 paf 1228: RC;
1.50 paf 1229: case 'l': case 'g': case 'e': case 'n':
1.51 paf 1230: if(end==begin) // right after whitespace
1.206 paf 1231: if(isspace(pc.source[1])) {
1232: switch(*pc.source) {
1.117 paf 1233: // case '?': // ok [and bad cases, yacc would bark at them]
1234: case 't': // lt gt [et nt]
1235: result=c=='l'?SLT:c=='g'?SGT:BAD_STRING_COMPARISON_OPERATOR;
1236: skip_analized=1;
1237: goto break2;
1238: case 'e': // le ge ne [ee]
1239: result=c=='l'?SLE:c=='g'?SGE:c=='n'?SNE:BAD_STRING_COMPARISON_OPERATOR;
1240: skip_analized=1;
1241: goto break2;
1242: case 'q': // eq [lq gq nq]
1243: result=c=='e'?SEQ:BAD_STRING_COMPARISON_OPERATOR;
1244: skip_analized=1;
1245: goto break2;
1246: }
1.67 paf 1247: }
1248: break;
1249: case 'i':
1250: if(end==begin) // right after whitespace
1.206 paf 1251: if(isspace(pc.source[1])) {
1252: switch(pc.source[0]) {
1.117 paf 1253: case 'n': // in
1.95 paf 1254: skip_analized=1;
1255: result=IN;
1256: goto break2;
1.117 paf 1257: case 's': // is
1.95 paf 1258: skip_analized=1;
1259: result=IS;
1260: goto break2;
1261: }
1.67 paf 1262: }
1263: break;
1264: case 'd':
1265: if(end==begin) // right after whitespace
1.206 paf 1266: if(pc.source[0]=='e' && pc.source[1]=='f') { // def
1.225 misha 1267: switch(pc.source[2]){
1268: case ' ': case '\t': case '\n': case '"': case '\'': case '^': case '$': // non-quoted string without whitespace after 'def' is not allowed
1269: skip_analized=2;
1270: result=DEF;
1271: goto break2;
1272: }
1273: // error: incorrect char after 'def'
1.50 paf 1274: }
1.48 paf 1275: break;
1.216 paf 1276: case 't':
1277: if(end==begin) // right after whitespace
1.225 misha 1278: if(pc.source[0]=='r' && pc.source[1]=='u' && pc.source[2]=='e') { // true
1.216 paf 1279: skip_analized=3;
1280: result=LITERAL_TRUE;
1281: goto break2;
1282: }
1283: break;
1284: case 'f':
1285: if(end==begin) // right after whitespace
1.225 misha 1286: if(pc.source[0]=='a' && pc.source[1]=='l' && pc.source[2]=='s' && pc.source[3]=='e') { // false
1.216 paf 1287: skip_analized=4;
1288: result=LITERAL_FALSE;
1289: goto break2;
1290: }
1291: break;
1.48 paf 1292: case ' ': case '\t': case '\n':
1.63 paf 1293: if(end!=begin) { // there were a string after previous operator?
1294: result=0; // return that string
1295: goto break2;
1.48 paf 1296: }
1.63 paf 1297: // that's a leading|traling space or after-operator-space
1298: // ignoring it
1299: // reset piece 'begin' position & line
1.206 paf 1300: begin=pc.source; // after whitespace char
1301: begin_pos=pc.pos;
1.48 paf 1302: continue;
1.1 paf 1303: }
1304: break;
1.194 paf 1305: case LS_EXPRESSION_COMMENT:
1306: if(c=='(')
1307: lexical_brackets_nestage++;
1308:
1.206 paf 1309: switch(*pc.source) {
1.194 paf 1310: case '\n': case ')':
1.206 paf 1311: if(*pc.source==')')
1.194 paf 1312: if(--lexical_brackets_nestage!=0)
1313: continue;
1314:
1315: // skip comment
1.206 paf 1316: begin=pc.source;
1317: begin_pos=pc.pos;
1.194 paf 1318:
1.206 paf 1319: pop_LS(pc);
1.194 paf 1320: continue;
1321: }
1322: break;
1.1 paf 1323:
1.10 paf 1324: // VARIABLE GET/PUT/WITH
1.166 parser 1325: case LS_VAR_NAME_SIMPLE_WITH_COLON:
1326: case LS_VAR_NAME_SIMPLE_WITHOUT_COLON:
1327: case LS_EXPRESSION_VAR_NAME_WITH_COLON:
1328: case LS_EXPRESSION_VAR_NAME_WITHOUT_COLON:
1329: if(
1.206 paf 1330: pc.ls==LS_EXPRESSION_VAR_NAME_WITH_COLON ||
1331: pc.ls==LS_EXPRESSION_VAR_NAME_WITHOUT_COLON) {
1.181 paf 1332: // name in expr ends also before
1.48 paf 1333: switch(c) {
1.181 paf 1334: // expression minus
1.92 paf 1335: case '-':
1.181 paf 1336: // expression integer division
1337: case '\\':
1.206 paf 1338: pop_LS(pc);
1339: pc.ungetc();
1.48 paf 1340: result=EON;
1341: goto break2;
1342: }
1343: }
1.166 parser 1344: if(
1.206 paf 1345: pc.ls==LS_VAR_NAME_SIMPLE_WITHOUT_COLON ||
1346: pc.ls==LS_EXPRESSION_VAR_NAME_WITHOUT_COLON) {
1.142 parser 1347: // name already has ':', stop before next
1348: switch(c) {
1349: case ':':
1.206 paf 1350: pop_LS(pc);
1351: pc.ungetc();
1.142 parser 1352: result=EON;
1353: goto break2;
1354: }
1355: }
1.48 paf 1356: switch(c) {
1357: case 0:
1358: case ' ': case '\t': case '\n':
1359: case ';':
1.126 paf 1360: case ']': case '}': case ')':
1361: case '"': case '\'':
1.139 parser 1362: case '<': case '>': // these stand for HTML brackets AND expression binary ops
1.253 misha 1363: case '+': case '*': case '/': case '\\': case '%':
1.92 paf 1364: case '&': case '|':
1365: case '=': case '!':
1.99 paf 1366: // common delimiters
1.190 paf 1367: case ',': case '?': case '#':
1.220 paf 1368: // mysql column separators
1369: case '`':
1.139 parser 1370: // before call
1371: case '^':
1.206 paf 1372: pop_LS(pc);
1373: pc.ungetc();
1.13 paf 1374: result=EON;
1.1 paf 1375: goto break2;
1.48 paf 1376: case '[':
1.162 parser 1377: // $name.<[>code]
1.206 paf 1378: if(pc.pos.col>1/*not first column*/ && (
1.163 parser 1379: end[-1]=='$'/*was start of get*/ ||
1380: end[-1]==':'/*was class name delim */ ||
1381: end[-1]=='.'/*was name delim */
1.162 parser 1382: )) {
1.206 paf 1383: push_LS(pc, LS_NAME_SQUARE_PART);
1.162 parser 1384: lexical_brackets_nestage=1;
1385: RC;
1386: }
1.206 paf 1387: pc.ls=LS_VAR_SQUARE;
1.1 paf 1388: lexical_brackets_nestage=1;
1.48 paf 1389: RC;
1390: case '{':
1391: if(begin==end) { // ${name}, no need of EON, switching LS
1.206 paf 1392: pc.ls=LS_VAR_NAME_CURLY;
1.48 paf 1393: } else {
1.206 paf 1394: pc.ls=LS_VAR_CURLY;
1.48 paf 1395: lexical_brackets_nestage=1;
1396: }
1.69 paf 1397:
1.48 paf 1398: RC;
1399: case '(':
1.206 paf 1400: pc.ls=LS_VAR_ROUND;
1.1 paf 1401: lexical_brackets_nestage=1;
1.48 paf 1402: RC;
1403: case '.': // name part delim
1404: case '$': // name part subvar
1.160 parser 1405: case ':': // class<:>name
1.166 parser 1406: // go to _WITHOUT_COLON state variant...
1.206 paf 1407: if(pc.ls==LS_VAR_NAME_SIMPLE_WITH_COLON)
1408: pc.ls=LS_VAR_NAME_SIMPLE_WITHOUT_COLON;
1409: else if(pc.ls==LS_EXPRESSION_VAR_NAME_WITH_COLON)
1410: pc.ls=LS_EXPRESSION_VAR_NAME_WITHOUT_COLON;
1.166 parser 1411: // ...stop before next ':'
1.48 paf 1412: RC;
1.1 paf 1413: }
1414: break;
1.48 paf 1415:
1.1 paf 1416: case LS_VAR_NAME_CURLY:
1.48 paf 1417: switch(c) {
1.162 parser 1418: case '[':
1.166 parser 1419: // ${name.<[>code]}
1.206 paf 1420: push_LS(pc, LS_NAME_SQUARE_PART);
1.160 parser 1421: lexical_brackets_nestage=1;
1422: RC;
1.48 paf 1423: case '}': // ${name} finished, restoring LS
1.206 paf 1424: pop_LS(pc);
1.48 paf 1425: RC;
1426: case '.': // name part delim
1427: case '$': // name part subvar
1428: case ':': // ':name' or 'class:name'
1429: RC;
1.1 paf 1430: }
1431: break;
1.48 paf 1432:
1433: case LS_VAR_SQUARE:
1434: switch(c) {
1435: case '$':
1.206 paf 1436: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1437: RC;
1438: case '^':
1.206 paf 1439: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1440: RC;
1441: case ']':
1.1 paf 1442: if(--lexical_brackets_nestage==0) {
1.206 paf 1443: pop_LS(pc);
1.48 paf 1444: RC;
1.1 paf 1445: }
1.48 paf 1446: break;
1447: case ';': // operator_or_fmt;value delim
1448: RC;
1449: case '[':
1450: lexical_brackets_nestage++;
1451: break;
1.1 paf 1452: }
1453: break;
1.48 paf 1454:
1.1 paf 1455: case LS_VAR_CURLY:
1.48 paf 1456: switch(c) {
1457: case '$':
1.206 paf 1458: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1459: RC;
1460: case '^':
1.206 paf 1461: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1462: RC;
1463: case '}':
1.1 paf 1464: if(--lexical_brackets_nestage==0) {
1.206 paf 1465: pop_LS(pc);
1.48 paf 1466: RC;
1.1 paf 1467: }
1.48 paf 1468: break;
1469: case '{':
1.1 paf 1470: lexical_brackets_nestage++;
1.48 paf 1471: break;
1472: }
1.1 paf 1473: break;
1474:
1.10 paf 1475: // METHOD CALL
1.1 paf 1476: case LS_METHOD_NAME:
1.48 paf 1477: switch(c) {
1478: case '[':
1.166 parser 1479: // ^name.<[>code].xxx
1.206 paf 1480: if(pc.pos.col>1/*not first column*/ && (
1.163 parser 1481: end[-1]=='^'/*was start of call*/ || // never, ^[ is literal...
1482: end[-1]==':'/*was class name delim */ ||
1483: end[-1]=='.'/*was name delim */
1.162 parser 1484: )) {
1.206 paf 1485: push_LS(pc, LS_NAME_SQUARE_PART);
1.162 parser 1486: lexical_brackets_nestage=1;
1487: RC;
1488: }
1.206 paf 1489: pc.ls=LS_METHOD_SQUARE;
1.1 paf 1490: lexical_brackets_nestage=1;
1.48 paf 1491: RC;
1492: case '{':
1.206 paf 1493: pc.ls=LS_METHOD_CURLY;
1.1 paf 1494: lexical_brackets_nestage=1;
1.48 paf 1495: RC;
1.69 paf 1496: case '(':
1.206 paf 1497: pc.ls=LS_METHOD_ROUND;
1.69 paf 1498: lexical_brackets_nestage=1;
1499: RC;
1.48 paf 1500: case '.': // name part delim
1501: case '$': // name part subvar
1502: case ':': // ':name' or 'class:name'
1.170 parser 1503: case '^': // ^abc^xxx wrong. bailing out
1504: case ']': case '}': case ')': // ^abc]}) wrong. bailing out
1.207 paf 1505: case ' ': // ^if ( wrong. bailing out
1.48 paf 1506: RC;
1.1 paf 1507: }
1508: break;
1.48 paf 1509:
1510: case LS_METHOD_SQUARE:
1511: switch(c) {
1512: case '$':
1.206 paf 1513: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1514: RC;
1515: case '^':
1.206 paf 1516: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1517: RC;
1518: case ';': // param delim
1519: RC;
1520: case ']':
1.1 paf 1521: if(--lexical_brackets_nestage==0) {
1.206 paf 1522: pc.ls=LS_METHOD_AFTER;
1.48 paf 1523: RC;
1.1 paf 1524: }
1.48 paf 1525: break;
1526: case '[':
1.1 paf 1527: lexical_brackets_nestage++;
1.48 paf 1528: break;
1529: }
1.1 paf 1530: break;
1.48 paf 1531:
1.1 paf 1532: case LS_METHOD_CURLY:
1.48 paf 1533: switch(c) {
1534: case '$':
1.206 paf 1535: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1536: RC;
1537: case '^':
1.206 paf 1538: push_LS(pc, LS_METHOD_NAME);
1.94 paf 1539: RC;
1540: case ';': // param delim
1.48 paf 1541: RC;
1542: case '}':
1.1 paf 1543: if(--lexical_brackets_nestage==0) {
1.206 paf 1544: pc.ls=LS_METHOD_AFTER;
1.48 paf 1545: RC;
1.1 paf 1546: }
1.48 paf 1547: break;
1548: case '{':
1.1 paf 1549: lexical_brackets_nestage++;
1.48 paf 1550: break;
1551: }
1.209 paf 1552: if(pc.explicit_result && c)
1553: switch(c) {
1.276 moko 1554: default:
1555: pc.string.append(c);
1.209 paf 1556: case '\n': case ' ': case '\t':
1557: begin=pc.source;
1558: begin_pos=pc.pos;
1.276 moko 1559: continue;
1.209 paf 1560: }
1.1 paf 1561: break;
1.48 paf 1562:
1.1 paf 1563: case LS_METHOD_AFTER:
1.69 paf 1564: if(c=='[') {/* ][ }[ )[ */
1.206 paf 1565: pc.ls=LS_METHOD_SQUARE;
1.1 paf 1566: lexical_brackets_nestage=1;
1.48 paf 1567: RC;
1.281 ! moko 1568: }
1.69 paf 1569: if(c=='{') {/* ]{ }{ ){ */
1.206 paf 1570: pc.ls=LS_METHOD_CURLY;
1.69 paf 1571: lexical_brackets_nestage=1;
1572: RC;
1.281 ! moko 1573: }
1.69 paf 1574: if(c=='(') {/* ]( }( )( */
1.206 paf 1575: pc.ls=LS_METHOD_ROUND;
1.1 paf 1576: lexical_brackets_nestage=1;
1.48 paf 1577: RC;
1.281 ! moko 1578: }
1.206 paf 1579: pop_LS(pc);
1580: pc.ungetc();
1.13 paf 1581: result=EON;
1.1 paf 1582: goto break2;
1583: }
1.9 paf 1584: if(c==0) {
1.1 paf 1585: result=-1;
1586: break;
1587: }
1588: }
1589:
1590: break2:
1.59 paf 1591: if(end!=begin) { // there is last piece?
1.258 misha 1592: if(c=='@' || c==0) // we are before LS_DEF_NAME or EOF?
1593: while(end!=begin && end[-1]=='\n') // trim all empty lines before LS_DEF_NAME and EOF
1.137 parser 1594: end--;
1.206 paf 1595: if(end!=begin && pc.ls!=LS_USER_COMMENT) { // last piece still alive and not comment?
1596: if(!pc.string_start)
1597: pc.string_start=begin_pos;
1.59 paf 1598: // append it
1.206 paf 1599: pc.string.append_strdup_know_length(begin, end-begin);
1.30 paf 1600: }
1.59 paf 1601: }
1.206 paf 1602: if(!pc.string.is_empty()) { // something accumulated?
1603: // create STRING value: array of OP_VALUE+origin+vstring
1.278 moko 1604: #ifdef SYMBOLS_CACHING
1605: Value *lookup=symbols->get(pc.string);
1606: #else
1607: Value *lookup=0;
1608: #endif
1.281 ! moko 1609: *lvalp=VL(lookup ? lookup : new VString(*new String(pc.string, String::L_CLEAN)), pc.file_no, pc.string_start.line, pc.string_start.col);
1.10 paf 1610: // new pieces storage
1.206 paf 1611: pc.string.clear();
1612: pc.string_start.clear();
1.58 paf 1613: // make current result be pending for next call, return STRING for now
1.206 paf 1614: pc.pending_state=result; result=STRING;
1.58 paf 1615: }
1.67 paf 1616: if(skip_analized) {
1.206 paf 1617: pc.source+=skip_analized; pc.pos.col+=skip_analized;
1.1 paf 1618: }
1.58 paf 1619: return result;
1.1 paf 1620: }
1621:
1.264 moko 1622: static int real_yyerror(Parse_control *pc, const char *s) { // Called by yyparse on error
1.281 ! moko 1623: strncpy(PC.error, s, MAX_STRING);
! 1624: return 1;
1.110 paf 1625: }
1.1 paf 1626:
1.110 paf 1627: static void yyprint(FILE *file, int type, YYSTYPE value) {
1628: if(type==STRING)
1.206 paf 1629: fprintf(file, " \"%s\"", LA2S(*value)->cstr());
1.110 paf 1630: }
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