Annotation of parser3/src/main/compile.y, revision 1.285
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:
1.285 ! moko 11: volatile const char * IDENT_COMPILE_Y = "$Id: compile.y,v 1.284 2016/09/20 12:02:22 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 {
1.284 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*/, PC.cclass->is_vars_local());
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);
1.283 moko 196: if(VStateless_class *base_class=PC.request.get_class(base_name)) {
1.206 paf 197: // @CLASS == @BASE sanity check
1.283 moko 198: if(PC.cclass==base_class) {
199: strcpy(PC.error, "@" CLASS_NAME " equals @" BASE_NAME);
1.206 paf 200: YYERROR;
201: }
1.283 moko 202: PC.cclass->get_class()->set_base(base_class);
1.206 paf 203: } else {
1.281 moko 204: PC_ERROR("'", base_name.cstr(), "': undefined class in @" BASE_NAME);
1.73 paf 205: YYERROR;
206: }
1.34 paf 207: } else {
1.268 moko 208: strcpy(PC.error, "@" BASE_NAME " must contain sole name");
1.34 paf 209: YYERROR;
210: }
1.223 misha 211: } else if(command==OPTIONS_CONTROL_METHOD_NAME) {
212: for(size_t i=0; i<strings_code->count(); i+=OPERATIONS_PER_OPVALUE) {
1.260 misha 213: const String& option=LA2S(*strings_code, i)->trim(String::TRIM_END);
1.279 moko 214: if(option==Symbols::LOCALS_SYMBOL){
1.226 misha 215: PC.set_all_vars_local();
1.279 moko 216: } else if(option==Symbols::PARTIAL_SYMBOL){
1.230 misha 217: if(PC.cclass_new){
218: if(VStateless_class* existed=PC.get_existed_class(PC.cclass_new)){
219: if(!PC.reuse_existed_class(existed)){
1.281 moko 220: PC_ERROR("can't append methods to '", PC.cclass_new->type(), "' - the class wasn't marked as partial");
1.230 misha 221: YYERROR;
222: }
1.226 misha 223: } else {
1.256 misha 224: // marks the new class as partial. we will be able to add methods here later.
1.230 misha 225: PC.cclass_new->set_partial();
1.226 misha 226: }
1.230 misha 227: } else {
1.279 moko 228: strcpy(PC.error, "'partial' option should be used straight after @" CLASS_NAME);
1.226 misha 229: YYERROR;
230: }
1.279 moko 231: } else if(option==Symbols::STATIC_SYMBOL){
1.256 misha 232: PC.set_methods_call_type(Method::CT_STATIC);
1.279 moko 233: } else if(option==Symbols::DYNAMIC_SYMBOL){
1.256 misha 234: PC.set_methods_call_type(Method::CT_DYNAMIC);
1.223 misha 235: } else {
1.281 moko 236: PC_ERROR("'", option.cstr(), "' invalid option. valid options are 'partial', 'locals', 'static' and 'dynamic'");
1.223 misha 237: YYERROR;
238: }
239: }
1.130 paf 240: } else {
1.281 moko 241: 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 242: YYERROR;
1.34 paf 243: }
244: };
1.132 paf 245: maybe_control_strings: empty | control_strings;
1.259 misha 246: control_strings: control_string | control_strings control_string { $$=$1; P(*$$, *$2); };
1.37 paf 247: control_string: maybe_string '\n';
248: maybe_string: empty | STRING;
1.34 paf 249:
1.222 misha 250: code_method: '@' STRING bracketed_maybe_strings maybe_bracketed_strings maybe_comment '\n' {
1.265 moko 251: CLASS_ADD;
1.208 paf 252: PC.explicit_result=false;
1.10 paf 253:
254: YYSTYPE params_names_code=$3;
1.206 paf 255: ArrayString* params_names=0;
256: if(int size=params_names_code->count()) {
257: params_names=new ArrayString;
258: for(int i=0; i<size; i+=OPERATIONS_PER_OPVALUE)
259: *params_names+=LA2S(*params_names_code, i);
1.75 paf 260: }
1.10 paf 261:
262: YYSTYPE locals_names_code=$4;
1.206 paf 263: ArrayString* locals_names=0;
1.284 moko 264: bool all_vars_local=PC.cclass->is_vars_local();
265:
1.206 paf 266: if(int size=locals_names_code->count()) {
267: locals_names=new ArrayString;
1.208 paf 268: for(int i=0; i<size; i+=OPERATIONS_PER_OPVALUE) {
269: const String* local_name=LA2S(*locals_names_code, i);
1.279 moko 270: if(SYMBOLS_EQ(*local_name,RESULT_SYMBOL))
1.208 paf 271: PC.explicit_result=true;
1.279 moko 272: else if(SYMBOLS_EQ(*local_name,LOCALS_SYMBOL))
1.223 misha 273: all_vars_local=true;
1.208 paf 274: else
275: *locals_names+=local_name;
276: }
1.75 paf 277: }
1.10 paf 278:
1.208 paf 279: Method* method=new Method(
1.206 paf 280: //name,
1.257 misha 281: GetMethodCallType(PC, *$2),
1.81 paf 282: 0, 0/*min,max numbered_params_count*/,
1.76 paf 283: params_names, locals_names,
1.223 misha 284: 0/*to be filled later in next {} */, 0, all_vars_local);
1.221 misha 285:
1.208 paf 286: *reinterpret_cast<Method**>(&$$)=method;
1.222 misha 287: } maybe_codes {
1.251 misha 288: Method* method=reinterpret_cast<Method*>($7);
1.231 misha 289: // fill in the code
1.251 misha 290: method->parser_code=$8;
1.231 misha 291:
292: // register in class
293: const String& name=*LA2S(*$2);
1.251 misha 294: PC.cclass->set_method(PC.alias_method(name), method);
1.8 paf 295: };
1.10 paf 296:
297: maybe_bracketed_strings: empty | bracketed_maybe_strings;
1.259 misha 298: bracketed_maybe_strings: '[' maybe_strings ']' {$$=$2;};
1.10 paf 299: maybe_strings: empty | strings;
1.259 misha 300: strings: STRING | strings ';' STRING { $$=$1; P(*$$, *$3); };
1.10 paf 301:
302: maybe_comment: empty | STRING;
1.1 paf 303:
304: /* codes */
305:
1.10 paf 306: maybe_codes: empty | codes;
307:
1.259 misha 308: codes: code | codes code { $$=$1; P(*$$, *$2); };
1.81 paf 309: code: write_string | action;
1.209 paf 310: action: get | put | call;
1.1 paf 311:
312: /* get */
313:
1.64 paf 314: get: get_value {
1.238 misha 315: $$=N();
316: YYSTYPE code=$1;
1.247 misha 317: size_t count=code->count();
1.245 misha 318:
1.235 misha 319: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
1.281 moko 320: if(count!=3 || !change_first(*code, OP::OP_VALUE__GET_ELEMENT, /*=>*/OP::OP_VALUE__GET_ELEMENT__WRITE) )
1.238 misha 321: #endif
1.247 misha 322:
1.245 misha 323: #ifdef OPTIMIZE_BYTECODE_GET_SELF_ELEMENT
1.281 moko 324: if(count!=3 || !change_first(*code, OP::OP_WITH_SELF__VALUE__GET_ELEMENT, /*=>*/OP::OP_WITH_SELF__VALUE__GET_ELEMENT__WRITE) )
1.245 misha 325: #endif
326:
1.239 misha 327: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_ELEMENT
1.281 moko 328: if(count!=5 || !change_first(*code, OP::OP_GET_OBJECT_ELEMENT, /*=>*/OP::OP_GET_OBJECT_ELEMENT__WRITE) )
1.239 misha 329: #endif
330:
331: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_VAR_ELEMENT
1.281 moko 332: if(count!=5 || !change_first(*code, OP::OP_GET_OBJECT_VAR_ELEMENT, /*=>*/OP::OP_GET_OBJECT_VAR_ELEMENT__WRITE) )
1.238 misha 333: #endif
1.267 misha 334:
335: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT__SPECIAL
1.281 moko 336: if(!change(*code, count-1/* last */, OP::OP_GET_ELEMENT__SPECIAL, /*=>*/OP::OP_GET_ELEMENT__SPECIAL__WRITE) )
1.267 misha 337: #endif
338:
1.247 misha 339: {
1.281 moko 340: change_or_append(*code, count-1 /* last */, OP::OP_GET_ELEMENT, /*=>*/OP::OP_GET_ELEMENT__WRITE, /*or */OP::OP_WRITE_VALUE ); /* value=pop; wcontext.write(value) */
1.246 misha 341: }
1.247 misha 342:
1.238 misha 343: P(*$$, *code);
1.1 paf 344: };
1.259 misha 345: get_value: '$' get_name_value { $$=$2; };
1.64 paf 346: get_name_value: name_without_curly_rdive EON | name_in_curly_rdive;
1.259 misha 347: name_in_curly_rdive: '{' name_without_curly_rdive '}' { $$=$2; };
1.44 paf 348: name_without_curly_rdive:
349: name_without_curly_rdive_read
350: | name_without_curly_rdive_class;
1.19 paf 351: name_without_curly_rdive_read: name_without_curly_rdive_code {
1.206 paf 352: $$=N();
1.238 misha 353: YYSTYPE diving_code=$1;
1.239 misha 354: size_t count=diving_code->count();
1.247 misha 355:
356: if(maybe_make_self(*$$, *diving_code, count)) {
357: // $self.
358: } else
1.239 misha 359:
360: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_ELEMENT
1.247 misha 361: if(maybe_make_get_object_element(*$$, *diving_code, count)){
1.245 misha 362: // optimization for $object.field + ^object.method[
1.247 misha 363: } else
1.238 misha 364: #endif
1.239 misha 365:
366: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_VAR_ELEMENT
1.247 misha 367: if(maybe_make_get_object_var_element(*$$, *diving_code, count)){
1.245 misha 368: // optimization for $object.$var
1.247 misha 369: } else
1.238 misha 370: #endif
1.239 misha 371:
372: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
1.281 moko 373: if(count>=4 && (*diving_code)[0].code==OP::OP_VALUE && (*diving_code)[3].code==OP::OP_GET_ELEMENT ){
1.248 misha 374: // optimization
1.239 misha 375: O(*$$,
1.247 misha 376: (PC.in_call_value && count==4)
1.239 misha 377: ? OP::OP_VALUE__GET_ELEMENT_OR_OPERATOR // ^object[ : OP_VALUE+origin+string+OP_GET_ELEMENT => OP_VALUE__GET_ELEMENT_OR_OPERATOR+origin+string
378: : OP::OP_VALUE__GET_ELEMENT // $object : OP_VALUE+origin+string+OP_GET_ELEMENT => OP_VALUE__GET_ELEMENT+origin+string
379: );
380: P(*$$, *diving_code, 1/*offset*/, 2/*limit*/); // copy origin+value
1.247 misha 381: if(count>4)
382: P(*$$, *diving_code, 4); // copy tail
1.239 misha 383: } else {
384: O(*$$, OP::OP_WITH_READ); /* stack: starting context */
385: P(*$$, *diving_code);
386: }
1.233 misha 387: #else
1.247 misha 388: {
1.238 misha 389: O(*$$, OP::OP_WITH_READ); /* stack: starting context */
1.179 paf 390:
1.238 misha 391: // ^if OP_ELEMENT => ^if OP_ELEMENT_OR_OPERATOR
392: // optimized OP_VALUE+origin+string+OP_GET_ELEMENT. => OP_VALUE+origin+string+OP_GET_ELEMENT_OR_OPERATOR.
1.239 misha 393: if(PC.in_call_value && count==4)
394: diving_code->put(count-1, OP::OP_GET_ELEMENT_OR_OPERATOR);
1.206 paf 395: P(*$$, *diving_code);
1.239 misha 396: }
1.233 misha 397: #endif
1.22 paf 398: /* diving code; stack: current context */
1.1 paf 399: };
1.259 misha 400: name_without_curly_rdive_class: class_prefix name_without_curly_rdive_code { $$=$1; P(*$$, *$2); };
401: name_without_curly_rdive_code: name_advance2 | name_path name_advance2 { $$=$1; P(*$$, *$2); };
1.1 paf 402:
403: /* put */
404:
1.81 paf 405: put: '$' name_expr_wdive construct {
1.241 misha 406: $$=N();
1.244 misha 407: #ifdef OPTIMIZE_BYTECODE_CONSTRUCT
408: if(maybe_optimize_construct(*$$, *$2, *$3)){
1.246 misha 409: // $a(expr), $.a(expr), $a[value], $.a[value], $self.a[value], $self.a(expr)
1.241 misha 410: } else
411: #endif
412: {
413: P(*$$, *$2); /* stack: context,name */
414: P(*$$, *$3); /* stack: context,name,constructor_value */
415: }
1.20 paf 416: };
1.44 paf 417: name_expr_wdive:
1.157 parser 418: name_expr_wdive_root
419: | name_expr_wdive_write
1.44 paf 420: | name_expr_wdive_class;
1.157 parser 421: name_expr_wdive_root: name_expr_dive_code {
1.206 paf 422: $$=N();
1.238 misha 423: YYSTYPE diving_code=$1;
1.247 misha 424: size_t count=diving_code->count();
425:
426: if(maybe_make_self(*$$, *diving_code, count)) {
427: // $self.
428: } else
429: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
1.281 moko 430: if(count>=4 && (*diving_code)[0].code==OP::OP_VALUE && (*diving_code)[3].code==OP::OP_GET_ELEMENT ){
1.247 misha 431: O(*$$, OP::OP_WITH_ROOT__VALUE__GET_ELEMENT);
432: P(*$$, *diving_code, 1/*offset*/, 2/*limit*/); // copy origin+value
433: if(count>4)
434: P(*$$, *diving_code, 4); // tail
435: } else
436: #endif
437: {
1.229 misha 438: O(*$$, OP::OP_WITH_ROOT); /* stack: starting context */
1.206 paf 439: P(*$$, *diving_code);
1.23 paf 440: }
441: /* diving code; stack: current context */
1.156 parser 442: };
1.157 parser 443: name_expr_wdive_write: '.' name_expr_dive_code {
1.206 paf 444: $$=N();
1.229 misha 445: O(*$$, OP::OP_WITH_WRITE); /* stack: starting context */
1.206 paf 446: P(*$$, *$2); /* diving code; stack: context,name */
1.20 paf 447: };
1.259 misha 448: name_expr_wdive_class: class_prefix name_expr_dive_code { $$=$1; P(*$$, *$2); };
1.20 paf 449:
1.244 misha 450: construct:
1.163 parser 451: construct_square
452: | construct_round
453: | construct_curly
1.149 parser 454: ;
1.211 paf 455: construct_square: '[' {
456: // allow $result_or_other_variable[ letters here any time ]
457: *reinterpret_cast<bool*>(&$$)=PC.explicit_result; PC.explicit_result=false;
458: } any_constructor_code_value {
1.213 paf 459: PC.explicit_result=*reinterpret_cast<bool*>(&$2);
1.211 paf 460: } ']' {
1.149 parser 461: // stack: context, name
1.211 paf 462: $$=$3; // stack: context, name, value
1.229 misha 463: O(*$$, OP::OP_CONSTRUCT_VALUE); /* value=pop; name=pop; context=pop; construct(context,name,value) */
1.81 paf 464: }
465: ;
1.149 parser 466: construct_round: '(' expr_value ')' {
1.206 paf 467: $$=N();
1.149 parser 468: // stack: context, name
1.206 paf 469: P(*$$, *$2); // stack: context, name, value
1.229 misha 470: O(*$$, OP::OP_CONSTRUCT_EXPR); /* value=pop->as_expr_result; name=pop; context=pop; construct(context,name,value) */
1.81 paf 471: }
1.52 paf 472: ;
1.149 parser 473: construct_curly: '{' maybe_codes '}' {
474: // stack: context, name
1.206 paf 475: $$=N();
1.229 misha 476: OA(*$$, OP::OP_CURLY_CODE__CONSTRUCT, $2); /* code=pop; name=pop; context=pop; construct(context,name,junction(code)) */
1.149 parser 477: };
478:
1.55 paf 479: any_constructor_code_value:
1.261 moko 480: empty_value /* optimized $var[] case */
1.52 paf 481: | STRING /* optimized $var[STRING] case */
1.55 paf 482: | constructor_code_value /* $var[something complex] */
1.1 paf 483: ;
1.55 paf 484: constructor_code_value: constructor_code {
1.206 paf 485: $$=N();
1.229 misha 486: OA(*$$, OP::OP_OBJECT_POOL, $1); /* stack: empty write context */
1.183 paf 487: /* some code that writes to that context */
488: /* context=pop; stack: context.value() */
1.1 paf 489: };
1.55 paf 490: constructor_code: codes__excluding_sole_str_literal;
1.259 misha 491: codes__excluding_sole_str_literal: action | code codes { $$=$1; P(*$$, *$2); };
1.27 paf 492:
1.1 paf 493: /* call */
494:
1.66 paf 495: call: call_value {
1.267 misha 496: size_t count=$1->count();
1.238 misha 497: #ifdef OPTIMIZE_BYTECODE_CUT_REM_OPERATOR
1.267 misha 498: if(count)
1.238 misha 499: #endif
500: {
501: $$=$1; /* stack: value */
1.281 moko 502: if(!change_first(*$$, OP::OP_CONSTRUCT_OBJECT, /*=>*/ OP::OP_CONSTRUCT_OBJECT__WRITE))
503: change_or_append(*$$, count-2 /* second last */, OP::OP_CALL, /*=>*/ OP::OP_CALL__WRITE, /*or */ OP::OP_WRITE_VALUE); /* value=pop; wcontext.write(value) */
1.238 misha 504: }
1.66 paf 505: };
1.177 paf 506: call_value: '^' {
1.281 moko 507: PC.in_call_value=true;
508: }
509: call_name {
510: PC.in_call_value=false;
511: }
512: store_params EON { /* ^field.$method{vasya} */
1.238 misha 513: #ifdef OPTIMIZE_BYTECODE_CUT_REM_OPERATOR
1.242 misha 514: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
1.238 misha 515: const String* operator_name=LA2S(*$3, 0, OP::OP_VALUE__GET_ELEMENT_OR_OPERATOR);
1.242 misha 516: #else
517: const String* operator_name=LA2S(*$3, 1);
518: #endif
1.279 moko 519: if(operator_name && SYMBOLS_EQ(*operator_name,REM_SYMBOL)){
1.238 misha 520: $$=N();
521: } else
522: #endif
523: {
524: YYSTYPE params_code=$5;
525: if(params_code->count()==3) { // probably [] case. [OP::OP_VALUE+origin+Void]
526: if(Value* value=LA2V(*params_code)) // it is OP_VALUE+origin+value?
1.261 moko 527: if(const String * string=value->get_string())
528: if(string->is_empty()) // value is empty string?
529: params_code=0; // ^zzz[] case. don't append lone empty param.
1.238 misha 530: }
531: /* stack: context, method_junction */
1.249 misha 532:
533: YYSTYPE var_code=$3;
534: if(
535: var_code->count()==8
1.282 moko 536: && ( (*var_code)[0].code==OP::OP_VALUE__GET_CLASS || (*var_code)[0].code==OP::OP_VALUE__GET_BASE_CLASS )
1.249 misha 537: && (*var_code)[3].code==OP::OP_PREPARE_TO_CONSTRUCT_OBJECT
538: && (*var_code)[4].code==OP::OP_VALUE
1.272 moko 539: #ifdef FEATURE_GET_ELEMENT4CALL
540: && (*var_code)[7].code==OP::OP_GET_ELEMENT4CALL
541: #else
1.249 misha 542: && (*var_code)[7].code==OP::OP_GET_ELEMENT
1.272 moko 543: #endif
1.249 misha 544: ){
1.267 misha 545: $$=N();
1.249 misha 546: O(*$$, OP::OP_CONSTRUCT_OBJECT);
547: P(*$$, *var_code, 1/*offset*/, 2/*limit*/); // class name
548: P(*$$, *var_code, 5/*offset*/, 2/*limit*/); // constructor name
549: OA(*$$, params_code);
550: } else
551: {
552: $$=var_code; /* with_xxx,diving code; stack: context,method_junction */
553: OA(*$$, OP::OP_CALL, params_code); // method_frame=make frame(pop junction); ncontext=pop; call(ncontext,method_frame) stack: value
554: }
1.238 misha 555: }
1.1 paf 556: };
557:
1.272 moko 558: call_name: name_without_curly_rdive {
559: #ifdef FEATURE_GET_ELEMENT4CALL
560: size_t count=$1->count();
561: if(count){
562: $$=$1;
563: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_ELEMENT
564: !(count==5 && change_first(*$$, OP::OP_GET_OBJECT_ELEMENT, OP::OP_GET_OBJECT_ELEMENT4CALL)) &&
565: #endif
566: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_VAR_ELEMENT
567: !(count==5 && change_first(*$$, OP::OP_GET_OBJECT_VAR_ELEMENT, OP::OP_GET_OBJECT_VAR_ELEMENT4CALL)) &&
568: #endif
569: !change(*$$, count-1, OP::OP_GET_ELEMENT, OP::OP_GET_ELEMENT4CALL);
570: }
571: #endif
572: };
1.38 paf 573:
1.259 misha 574: store_params: store_param | store_params store_param { $$=$1; P(*$$, *$2); };
1.69 paf 575: store_param:
576: store_square_param
577: | store_round_param
578: | store_curly_param
1.31 paf 579: ;
1.210 paf 580: store_square_param: '[' {
1.211 paf 581: // allow ^call[ letters here any time ]
1.210 paf 582: *reinterpret_cast<bool*>(&$$)=PC.explicit_result; PC.explicit_result=false;
583: } store_code_param_parts {
1.213 paf 584: PC.explicit_result=*reinterpret_cast<bool*>(&$2);
1.259 misha 585: } ']' {$$=$3;};
586: store_round_param: '(' store_expr_param_parts ')' {$$=$2;};
587: store_curly_param: '{' store_curly_param_parts '}' {$$=$2;};
1.69 paf 588: store_code_param_parts:
589: store_code_param_part
1.259 misha 590: | store_code_param_parts ';' store_code_param_part { $$=$1; P(*$$, *$3); }
1.69 paf 591: ;
592: store_expr_param_parts:
593: store_expr_param_part
1.259 misha 594: | store_expr_param_parts ';' store_expr_param_part { $$=$1; P(*$$, *$3); }
1.69 paf 595: ;
1.94 paf 596: store_curly_param_parts:
597: store_curly_param_part
1.259 misha 598: | store_curly_param_parts ';' store_curly_param_part { $$=$1; P(*$$, *$3); }
1.94 paf 599: ;
1.120 paf 600: store_code_param_part: code_param_value {
1.32 paf 601: $$=$1;
1.120 paf 602: };
1.214 paf 603: store_expr_param_part: expr_value {
604: YYSTYPE expr_code=$1;
1.215 paf 605: if(expr_code->count()==3
1.234 misha 606: && (*expr_code)[0].code==OP::OP_VALUE) { // optimizing (double/bool/incidently 'string' too) case. [OP::OP_VALUE+origin+Double]. no evaluating
1.214 paf 607: $$=expr_code;
608: } else {
1.238 misha 609: YYSTYPE code=N();
1.214 paf 610: P(*code, *expr_code);
1.229 misha 611: O(*code, OP::OP_WRITE_EXPR_RESULT);
1.214 paf 612: $$=N();
1.229 misha 613: OA(*$$, OP::OP_EXPR_CODE__STORE_PARAM, code);
1.214 paf 614: }
1.69 paf 615: };
1.94 paf 616: store_curly_param_part: maybe_codes {
1.206 paf 617: $$=N();
1.229 misha 618: OA(*$$, OP::OP_CURLY_CODE__STORE_PARAM, $1);
1.94 paf 619: };
1.120 paf 620: code_param_value:
1.261 moko 621: empty_value /* optimized [;...] case */
1.120 paf 622: | STRING /* optimized [STRING] case */
623: | constructor_code_value /* [something complex] */
624: ;
1.1 paf 625:
626: /* name */
627:
1.259 misha 628: name_expr_dive_code: name_expr_value | name_path name_expr_value { $$=$1; P(*$$, *$2); };
1.1 paf 629:
1.259 misha 630: name_path: name_step | name_path name_step { $$=$1; P(*$$, *$2); };
1.1 paf 631: name_step: name_advance1 '.';
632: name_advance1: name_expr_value {
1.177 paf 633: // we know that name_advance1 not called from ^xxx context
634: // so we'll not check for operator call possibility as we do in name_advance2
635:
1.1 paf 636: /* stack: context */
637: $$=$1; /* stack: context,name */
1.267 misha 638: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT__SPECIAL
639: O(*$$, is_special_element(*$$) ? OP::OP_GET_ELEMENT__SPECIAL : OP::OP_GET_ELEMENT);
640: #else
1.229 misha 641: O(*$$, OP::OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */
1.267 misha 642: #endif
1.1 paf 643: };
644: name_advance2: name_expr_value {
645: /* stack: context */
646: $$=$1; /* stack: context,name */
1.267 misha 647: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT__SPECIAL
648: O(*$$, is_special_element(*$$) ? OP::OP_GET_ELEMENT__SPECIAL : OP::OP_GET_ELEMENT);
649: #else
1.229 misha 650: O(*$$, OP::OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */
1.267 misha 651: #endif
1.1 paf 652: }
1.4 paf 653: | STRING BOGUS
1.1 paf 654: ;
655: name_expr_value:
1.4 paf 656: STRING /* subname_is_const */
1.1 paf 657: | name_expr_subvar_value /* $subname_is_var_value */
1.160 parser 658: | name_expr_with_subvar_value /* xxx$part_of_subname_is_var_value */
1.166 parser 659: | name_square_code_value /* [codes] */
1.1 paf 660: ;
661: name_expr_subvar_value: '$' subvar_ref_name_rdive {
662: $$=$2;
1.229 misha 663: O(*$$, OP::OP_GET_ELEMENT);
1.1 paf 664: };
1.4 paf 665: name_expr_with_subvar_value: STRING subvar_get_writes {
1.238 misha 666: YYSTYPE code;
1.183 paf 667: {
1.206 paf 668: change_string_literal_to_write_string_literal(*(code=$1));
669: P(*code, *$2);
1.183 paf 670: }
1.206 paf 671: $$=N();
1.229 misha 672: OA(*$$, OP::OP_STRING_POOL, code);
1.1 paf 673: };
1.212 paf 674: name_square_code_value: '[' {
675: // allow $result_or_other_variable[ letters here any time ]
676: *reinterpret_cast<bool*>(&$$)=PC.explicit_result; PC.explicit_result=false;
677: } codes {
1.213 paf 678: PC.explicit_result=*reinterpret_cast<bool*>(&$2);
1.212 paf 679: } ']' {
1.206 paf 680: $$=N();
1.267 misha 681: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT__SPECIAL
682: if(!maybe_append_simple_diving_code(*$$, *$3))
683: #endif
684: {
1.281 moko 685: OA(*$$, OP::OP_OBJECT_POOL, $3); /* stack: empty write context */
686: /* some code that writes to that context */
687: /* context=pop; stack: context.value() */
1.267 misha 688: }
1.160 parser 689: };
1.154 parser 690: subvar_ref_name_rdive: STRING {
1.206 paf 691: $$=N();
1.229 misha 692: O(*$$, OP::OP_WITH_READ);
1.206 paf 693: P(*$$, *$1);
1.1 paf 694: };
1.259 misha 695: subvar_get_writes: subvar__get_write | subvar_get_writes subvar__get_write { $$=$1; P(*$$, *$2); };
1.1 paf 696: subvar__get_write: '$' subvar_ref_name_rdive {
697: $$=$2;
1.229 misha 698: O(*$$, OP::OP_GET_ELEMENT__WRITE);
1.42 paf 699: };
700:
1.154 parser 701: class_prefix:
702: class_static_prefix
703: | class_constructor_prefix
704: ;
1.155 parser 705: class_static_prefix: STRING ':' {
706: $$=$1; // stack: class name string
1.282 moko 707: OP::OPCODE code = OP::OP_VALUE__GET_CLASS;
1.206 paf 708: if(*LA2S(*$$) == BASE_NAME) { // pseudo BASE class
709: if(VStateless_class* base=PC.cclass->base_class()) {
1.275 moko 710: change_string_literal_value(*$$, *new String(base->type()));
1.189 paf 711: } else {
712: strcpy(PC.error, "no base class declared");
713: YYERROR;
714: }
1.282 moko 715: code = OP::OP_VALUE__GET_BASE_CLASS;
716: } else {
1.283 moko 717: // can't use get_class because it will call @autouse[] if the class wasn't loaded
718: VStateless_class* base=PC.request.classes().get(*LA2S(*$$));
719: if(base && PC.cclass->derived_from(*base))
1.282 moko 720: code = OP::OP_VALUE__GET_BASE_CLASS;
1.189 paf 721: }
1.238 misha 722: // optimized OP_VALUE+origin+string+OP_GET_CLASS => OP_VALUE__GET_CLASS+origin+string
1.282 moko 723: change_first(*$$, OP::OP_VALUE, code);
1.155 parser 724: };
725: class_constructor_prefix: class_static_prefix ':' {
1.154 parser 726: $$=$1;
1.180 paf 727: if(!PC.in_call_value) {
1.154 parser 728: strcpy(PC.error, ":: not allowed here");
729: YYERROR;
730: }
1.229 misha 731: O(*$$, OP::OP_PREPARE_TO_CONSTRUCT_OBJECT);
1.1 paf 732: };
733:
1.53 paf 734:
1.56 paf 735: /* expr */
1.53 paf 736:
1.214 paf 737: expr_value: expr;
1.56 paf 738: expr:
1.214 paf 739: double_or_STRING
1.216 paf 740: | true_value
741: | false_value
1.64 paf 742: | get_value
1.66 paf 743: | call_value
1.259 misha 744: | '"' string_inside_quotes_value '"' { $$ = $2; }
745: | '\'' string_inside_quotes_value '\'' { $$ = $2; }
1.60 paf 746: | '(' expr ')' { $$ = $2; }
747: /* stack: operand // stack: @operand */
1.259 misha 748: | '-' expr %prec NUNARY { $$=$2; O(*$$, OP::OP_NEG); }
749: | '+' expr %prec NUNARY { $$=$2; }
750: | '~' expr { $$=$2; O(*$$, OP::OP_INV); }
751: | '!' expr { $$=$2; O(*$$, OP::OP_NOT); }
752: | "def" expr { $$=$2; O(*$$, OP::OP_DEF); }
753: | "in" expr { $$=$2; O(*$$, OP::OP_IN); }
754: | "-f" expr { $$=$2; O(*$$, OP::OP_FEXISTS); }
755: | "-d" expr { $$=$2; O(*$$, OP::OP_DEXISTS); }
1.60 paf 756: /* stack: a,b // stack: a@b */
1.259 misha 757: | expr '-' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_SUB); }
758: | expr '+' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_ADD); }
759: | expr '*' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_MUL); }
760: | expr '/' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_DIV); }
761: | expr '%' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_MOD); }
762: | expr '\\' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_INTDIV); }
763: | expr "<<" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_SL); }
764: | expr ">>" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_SR); }
765: | expr '&' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_AND); }
766: | expr '|' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_OR); }
767: | expr "!|" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_XOR); }
768: | expr "&&" expr { $$=$1; OA(*$$, OP::OP_NESTED_CODE, $3); O(*$$, OP::OP_LOG_AND); }
769: | expr "||" expr { $$=$1; OA(*$$, OP::OP_NESTED_CODE, $3); O(*$$, OP::OP_LOG_OR); }
770: | expr "!||" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_LOG_XOR); }
771: | expr '<' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_LT); }
772: | expr '>' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_GT); }
773: | expr "<=" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_LE); }
774: | expr ">=" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_GE); }
775: | expr "==" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_EQ); }
776: | expr "!=" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_NE); }
777: | expr "lt" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_LT); }
778: | expr "gt" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_GT); }
779: | expr "le" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_LE); }
780: | expr "ge" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_GE); }
781: | expr "eq" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_EQ); }
782: | expr "ne" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_NE); }
783: | expr "is" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_IS); }
1.56 paf 784: ;
1.214 paf 785:
786: double_or_STRING: STRING {
1.238 misha 787: // optimized OP_STRING => OP_VALUE for doubles
1.214 paf 788: maybe_change_string_literal_to_double_literal(*($$=$1));
789: };
1.55 paf 790:
1.65 paf 791: string_inside_quotes_value: maybe_codes {
1.238 misha 792: #ifdef OPTIMIZE_BYTECODE_STRING_POOL
793: // it brakes ^if(" 09 "){...}
794: YYSTYPE code=$1;
795: $$=N();
1.267 misha 796: if(code->count()==3 && change_first(*code, OP::OP_STRING__WRITE, OP::OP_VALUE)){
1.238 misha 797: // optimized OP_STRING__WRITE+origin+value => OP_VALUE+origin+value without starting OP_STRING_POOL
798: P(*$$, *code);
799: } else {
800: OA(*$$, OP::OP_STRING_POOL, code); /* stack: empty write context */
801: }
802: #else
1.206 paf 803: $$=N();
1.229 misha 804: OA(*$$, OP::OP_STRING_POOL, $1); /* stack: empty write context */
1.238 misha 805: #endif
1.183 paf 806: /* some code that writes to that context */
807: /* context=pop; stack: context.get_string() */
1.53 paf 808: };
1.1 paf 809:
1.27 paf 810: /* basics */
1.1 paf 811:
1.81 paf 812: write_string: STRING {
1.238 misha 813: // optimized OP_STRING+OP_WRITE_VALUE => OP_STRING__WRITE
1.259 misha 814: change_string_literal_to_write_string_literal(*($$=$1));
1.54 paf 815: };
816:
1.261 moko 817: empty_value: /* empty */ { $$=VL(/*we know that we will not change it*/const_cast<VString*>(&vempty), 0, 0, 0); }
1.259 misha 818: true_value: "true" { $$ = VL(/*we know that we will not change it*/const_cast<VBool*>(&vtrue), 0, 0, 0); }
819: false_value: "false" { $$ = VL(/*we know that we will not change it*/const_cast<VBool*>(&vfalse), 0, 0, 0); }
1.216 paf 820:
1.259 misha 821: empty: /* empty */ { $$=N(); };
1.1 paf 822:
823: %%
1.105 paf 824: #endif
1.1 paf 825:
826: /*
827: 000$111(2222)00
828: 000$111{3333}00
1.9 paf 829: $,^: push,=0
1.1 paf 830: 1:( { break=pop
831: 2:( ) pop
832: 3:{ } pop
833:
834: 000^111(2222)4444{33333}4000
1.9 paf 835: $,^: push,=0
1.1 paf 836: 1:( { break=pop
837: 2:( )=4
838: 3:{ }=4
839: 4:[^({]=pop
840: */
841:
1.206 paf 842: inline void ungetc(Parse_control& pc, uint last_line_end_col) {
843: pc.source--;
844: if(pc.pos.col==0) {
845: --pc.pos.line; pc.pos.col=last_line_end_col;
846: } else
847: --pc.pos.col;
848:
849: }
850: static int yylex(YYSTYPE *lvalp, void *apc) {
851: register Parse_control& pc=*static_cast<Parse_control*>(apc);
852:
853: #define lexical_brackets_nestage pc.brackets_nestages[pc.ls_sp]
1.48 paf 854: #define RC {result=c; goto break2; }
1.1 paf 855:
1.206 paf 856: register int c;
857: int result;
1.1 paf 858:
1.206 paf 859: if(pc.pending_state) {
860: result=pc.pending_state;
861: pc.pending_state=0;
1.1 paf 862: return result;
863: }
864:
1.206 paf 865: const char *begin=pc.source;
866: Pos begin_pos=pc.pos;
1.91 paf 867: const char *end;
1.67 paf 868: int skip_analized=0;
1.50 paf 869: while(true) {
1.206 paf 870: c=*(end=(pc.source++));
871: // fprintf(stderr, "\nchar: %c %02X; nestage: %d, sp=%d", c, c, lexical_brackets_nestage, pc.sp);
1.1 paf 872:
1.208 paf 873: if(c=='\n')
1.206 paf 874: pc.pos_next_line();
1.208 paf 875: else
1.206 paf 876: pc.pos_next_c(c);
1.208 paf 877: // fprintf(stderr, "\nchar: %c file(%d:%d)", c, pc.pos.line, pc.pos.col);
1.73 paf 878:
1.208 paf 879: if(pc.pos.col==0+1 && c=='@') {
1.206 paf 880: if(pc.ls==LS_DEF_SPECIAL_BODY) {
1.175 paf 881: // @SPECIAL
882: // ...
883: // @<here =
1.206 paf 884: pop_LS(pc); // exiting from LS_DEF_SPECIAL_BODY state
1.175 paf 885: } // continuing checks
1.206 paf 886: if(pc.ls==LS_USER) {
887: push_LS(pc, LS_DEF_NAME);
1.171 parser 888: RC;
1.175 paf 889: } else // @ in first column inside some code [when could that be?]
1.171 parser 890: result=BAD_METHOD_DECL_START;
891: goto break2;
1.209 paf 892: }
893: if(c=='^') {
1.206 paf 894: if(pc.ls==LS_METHOD_AFTER) {
1.203 paf 895: // handle after-method situation
1.206 paf 896: pop_LS(pc);
1.203 paf 897: result=EON;
898: skip_analized=-1; // return to punctuation afterwards to assure it's literality
899: goto break2;
900: }
1.206 paf 901: switch(pc.ls) {
1.169 parser 902: case LS_EXPRESSION_VAR_NAME_WITH_COLON:
903: case LS_EXPRESSION_VAR_NAME_WITHOUT_COLON:
904: case LS_VAR_NAME_SIMPLE_WITH_COLON:
905: case LS_VAR_NAME_SIMPLE_WITHOUT_COLON:
906: case LS_VAR_NAME_CURLY:
907: case LS_METHOD_NAME:
1.194 paf 908: case LS_USER_COMMENT:
1.169 parser 909: case LS_DEF_COMMENT:
910: // no literals in names, please
911: break;
912: default:
1.206 paf 913: switch(*pc.source) {
1.165 parser 914: // ^escaping some punctuators
1.228 misha 915: case '^': case '$': case ';': case '@':
1.126 paf 916: case '(': case ')':
1.48 paf 917: case '[': case ']':
918: case '{': case '}':
1.172 parser 919: case '"': case ':':
1.40 paf 920: if(end!=begin) {
1.206 paf 921: if(!pc.string_start)
922: pc.string_start=begin_pos;
1.40 paf 923: // append piece till ^
1.206 paf 924: pc.string.append_strdup_know_length(begin, end-begin);
1.40 paf 925: }
1.63 paf 926: // reset piece 'begin' position & line
1.206 paf 927: begin=pc.source; // ->punctuation
928: begin_pos=pc.pos;
1.203 paf 929: // skip over _ after ^
1.206 paf 930: pc.source++; pc.pos.col++;
1.203 paf 931: // skip analysis = forced literal
932: continue;
1.114 paf 933:
934: // converting ^#HH into char(hex(HH))
935: case '#':
936: if(end!=begin) {
1.206 paf 937: if(!pc.string_start)
938: pc.string_start=begin_pos;
1.114 paf 939: // append piece till ^
1.206 paf 940: pc.string.append_strdup_know_length(begin, end-begin);
1.114 paf 941: }
942: // #HH ?
1.228 misha 943: if(pc.source[1] && isxdigit(pc.source[1]) && pc.source[2] && isxdigit(pc.source[2])) {
1.218 paf 944: char c=(char)(
1.206 paf 945: hex_value[(unsigned char)pc.source[1]]*0x10+
1.218 paf 946: hex_value[(unsigned char)pc.source[2]]);
1.206 paf 947: if(c==0) {
1.114 paf 948: result=BAD_HEX_LITERAL;
949: goto break2; // wrong hex value[no ^#00 chars allowed]: bail out
950: }
951: // append char(hex(HH))
1.206 paf 952: pc.string.append(c);
1.114 paf 953: // skip over ^#HH
1.206 paf 954: pc.source+=3;
955: pc.pos.col+=3;
1.114 paf 956: // reset piece 'begin' position & line
1.206 paf 957: begin=pc.source; // ->after ^#HH
958: begin_pos=pc.pos;
1.203 paf 959: // skip analysis = forced literal
1.114 paf 960: continue;
961: }
1.228 misha 962: // just escaped char
963: // reset piece 'begin' position & line
964: begin=pc.source;
965: begin_pos=pc.pos;
966: // skip over _ after ^
967: pc.source++; pc.pos.col++;
968: // skip analysis = forced literal
969: continue;
1.1 paf 970: }
1.169 parser 971: break;
1.203 paf 972: }
1.169 parser 973: }
1.113 paf 974: // #comment start skipping
1.206 paf 975: if(c=='#' && pc.pos.col==1) {
1.112 paf 976: if(end!=begin) {
1.206 paf 977: if(!pc.string_start)
978: pc.string_start=begin_pos;
1.112 paf 979: // append piece till #
1.206 paf 980: pc.string.append_strdup_know_length(begin, end-begin);
1.112 paf 981: }
982: // fall into COMMENT lexical state [wait for \n]
1.206 paf 983: push_LS(pc, LS_USER_COMMENT);
1.175 paf 984: continue;
1.112 paf 985: }
1.206 paf 986: switch(pc.ls) {
1.10 paf 987:
988: // USER'S = NOT OURS
1.1 paf 989: case LS_USER:
1.206 paf 990: case LS_NAME_SQUARE_PART: // name.[here].xxx
991: if(pc.trim_bof)
1.153 parser 992: switch(c) {
993: case '\n': case ' ': case '\t':
1.206 paf 994: begin=pc.source;
995: begin_pos=pc.pos;
1.152 parser 996: continue; // skip it
1.153 parser 997: default:
1.206 paf 998: pc.trim_bof=false;
1.152 parser 999: }
1.48 paf 1000: switch(c) {
1001: case '$':
1.206 paf 1002: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1003: RC;
1004: case '^':
1.206 paf 1005: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1006: RC;
1.166 parser 1007: case ']':
1.206 paf 1008: if(pc.ls==LS_NAME_SQUARE_PART)
1.166 parser 1009: if(--lexical_brackets_nestage==0) {// $name.[co<]?>de<]?>
1.206 paf 1010: pop_LS(pc); // $name.[co<]>de<]!>
1.166 parser 1011: RC;
1012: }
1.160 parser 1013: break;
1.166 parser 1014: case '[': // $name.[co<[>de]
1.206 paf 1015: if(pc.ls==LS_NAME_SQUARE_PART)
1.166 parser 1016: lexical_brackets_nestage++;
1.161 parser 1017: break;
1.112 paf 1018: }
1.209 paf 1019: if(pc.explicit_result && c)
1020: switch(c) {
1.276 moko 1021: default:
1022: pc.string.append(c);
1.209 paf 1023: case '\n': case ' ': case '\t':
1024: begin=pc.source;
1025: begin_pos=pc.pos;
1.276 moko 1026: continue;
1.209 paf 1027: }
1.112 paf 1028: break;
1029:
1030: // #COMMENT
1.194 paf 1031: case LS_USER_COMMENT:
1.112 paf 1032: if(c=='\n') {
1033: // skip comment
1.206 paf 1034: begin=pc.source;
1035: begin_pos=pc.pos;
1.112 paf 1036:
1.206 paf 1037: pop_LS(pc);
1.112 paf 1038: continue;
1.1 paf 1039: }
1.48 paf 1040: break;
1041:
1042: // STRING IN EXPRESSION
1.145 parser 1043: case LS_EXPRESSION_STRING_QUOTED:
1044: case LS_EXPRESSION_STRING_APOSTROFED:
1.48 paf 1045: switch(c) {
1046: case '"':
1.145 parser 1047: case '\'':
1048: if(
1.270 moko 1049: (pc.ls == LS_EXPRESSION_STRING_QUOTED && c=='"') ||
1050: (pc.ls == LS_EXPRESSION_STRING_APOSTROFED && c=='\'') ) {
1.206 paf 1051: pop_LS(pc); //"abc". | 'abc'.
1.145 parser 1052: RC;
1053: }
1054: break;
1.48 paf 1055: case '$':
1.206 paf 1056: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1057: RC;
1058: case '^':
1.206 paf 1059: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1060: RC;
1.10 paf 1061: }
1062: break;
1063:
1064: // METHOD DEFINITION
1065: case LS_DEF_NAME:
1.48 paf 1066: switch(c) {
1067: case '[':
1.206 paf 1068: pc.ls=LS_DEF_PARAMS;
1.48 paf 1069: RC;
1070: case '\n':
1.206 paf 1071: pc.ls=LS_DEF_SPECIAL_BODY;
1.48 paf 1072: RC;
1.10 paf 1073: }
1074: break;
1.48 paf 1075:
1.10 paf 1076: case LS_DEF_PARAMS:
1.48 paf 1077: switch(c) {
1.192 paf 1078: case '$': // common error
1.193 paf 1079: result=BAD_METHOD_PARAMETER_NAME_CHARACTER;
1080: goto break2;
1.48 paf 1081: case ';':
1082: RC;
1083: case ']':
1.206 paf 1084: pc.ls=*pc.source=='['?LS_DEF_LOCALS:LS_DEF_COMMENT;
1.48 paf 1085: RC;
1.49 paf 1086: case '\n': // wrong. bailing out
1.206 paf 1087: pop_LS(pc);
1.48 paf 1088: RC;
1.10 paf 1089: }
1090: break;
1.48 paf 1091:
1.10 paf 1092: case LS_DEF_LOCALS:
1.48 paf 1093: switch(c) {
1094: case '[':
1095: case ';':
1096: RC;
1097: case ']':
1.206 paf 1098: pc.ls=LS_DEF_COMMENT;
1.48 paf 1099: RC;
1100: case '\n': // wrong. bailing out
1.206 paf 1101: pop_LS(pc);
1.48 paf 1102: RC;
1.10 paf 1103: }
1104: break;
1.48 paf 1105:
1.10 paf 1106: case LS_DEF_COMMENT:
1107: if(c=='\n') {
1.206 paf 1108: pop_LS(pc);
1.48 paf 1109: RC;
1.37 paf 1110: }
1111: break;
1112:
1.48 paf 1113: case LS_DEF_SPECIAL_BODY:
1.175 paf 1114: if(c=='\n')
1.48 paf 1115: RC;
1116: break;
1117:
1118: // (EXPRESSION)
1.69 paf 1119: case LS_VAR_ROUND:
1120: case LS_METHOD_ROUND:
1.48 paf 1121: switch(c) {
1122: case ')':
1.270 moko 1123: if(--lexical_brackets_nestage==0) {
1.206 paf 1124: if(pc.ls==LS_METHOD_ROUND) // method round param ended
1125: pc.ls=LS_METHOD_AFTER; // look for method end
1126: else // pc.ls==LS_VAR_ROUND // variable constructor ended
1127: pop_LS(pc); // return to normal life
1.270 moko 1128: }
1.48 paf 1129: RC;
1.194 paf 1130: case '#': // comment start skipping
1131: if(end!=begin) {
1.206 paf 1132: if(!pc.string_start)
1133: pc.string_start=begin_pos;
1.194 paf 1134: // append piece till #
1.206 paf 1135: pc.string.append_strdup_know_length(begin, end-begin);
1.194 paf 1136: }
1137: // fall into COMMENT lexical state [wait for \n]
1.206 paf 1138: push_LS(pc, LS_EXPRESSION_COMMENT);
1.194 paf 1139: lexical_brackets_nestage=1;
1140: continue;
1.48 paf 1141: case '$':
1.206 paf 1142: push_LS(pc, LS_EXPRESSION_VAR_NAME_WITH_COLON);
1.48 paf 1143: RC;
1144: case '^':
1.206 paf 1145: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1146: RC;
1147: case '(':
1148: lexical_brackets_nestage++;
1149: RC;
1.67 paf 1150: case '-':
1.206 paf 1151: switch(*pc.source) {
1.127 paf 1152: case 'f': // -f
1.67 paf 1153: skip_analized=1;
1154: result=FEXISTS;
1.127 paf 1155: goto break2;
1156: case 'd': // -d
1157: skip_analized=1;
1158: result=DEXISTS;
1159: goto break2;
1.191 paf 1160: default: // minus
1.67 paf 1161: result=c;
1.127 paf 1162: goto break2;
1163: }
1.67 paf 1164: goto break2;
1.173 paf 1165: case '+': case '*': case '/': case '%': case '\\':
1.58 paf 1166: case '~':
1.48 paf 1167: case ';':
1168: RC;
1.193 paf 1169: case '&': case '|':
1.206 paf 1170: if(*pc.source==c) { // && ||
1.193 paf 1171: result=c=='&'?LAND:LOR;
1.67 paf 1172: skip_analized=1;
1.58 paf 1173: } else
1174: result=c;
1175: goto break2;
1.193 paf 1176: case '!':
1.206 paf 1177: switch(pc.source[0]) {
1.193 paf 1178: case '|': // !| !||
1179: skip_analized=1;
1.206 paf 1180: if(pc.source[1]=='|') {
1.193 paf 1181: skip_analized++;
1182: result=LXOR;
1183: } else
1184: result=NXOR;
1185: goto break2;
1186: case '=': // !=
1187: skip_analized=1;
1188: result=NNE;
1189: goto break2;
1190: }
1191: RC;
1.195 paf 1192:
1193: case '<': // <<, <=, <
1.206 paf 1194: switch(*pc.source) {
1.195 paf 1195: case '<': // <[<]
1196: skip_analized=1; result=NSL; break;
1197: case '=': // <[=]
1198: skip_analized=1; result=NLE; break;
1199: default: // <[]
1200: result=c; break;
1201: }
1202: goto break2;
1203: case '>': // >>, >=, >
1.206 paf 1204: switch(*pc.source) {
1.195 paf 1205: case '>': // >[>]
1206: skip_analized=1; result=NSR; break;
1207: case '=': // >[=]
1208: skip_analized=1; result=NGE; break;
1209: default: // >[]
1210: result=c; break;
1211: }
1212: goto break2;
1213: case '=': // ==
1.206 paf 1214: switch(*pc.source) {
1.195 paf 1215: case '=': // =[=]
1216: skip_analized=1; result=NEQ; break;
1217: default: // =[]
1218: result=c; break; // not used now
1219: }
1.58 paf 1220: goto break2;
1.195 paf 1221:
1.48 paf 1222: case '"':
1.206 paf 1223: push_LS(pc, LS_EXPRESSION_STRING_QUOTED);
1.145 parser 1224: RC;
1225: case '\'':
1.206 paf 1226: push_LS(pc, LS_EXPRESSION_STRING_APOSTROFED);
1.48 paf 1227: RC;
1.50 paf 1228: case 'l': case 'g': case 'e': case 'n':
1.51 paf 1229: if(end==begin) // right after whitespace
1.206 paf 1230: if(isspace(pc.source[1])) {
1231: switch(*pc.source) {
1.117 paf 1232: // case '?': // ok [and bad cases, yacc would bark at them]
1233: case 't': // lt gt [et nt]
1234: result=c=='l'?SLT:c=='g'?SGT:BAD_STRING_COMPARISON_OPERATOR;
1235: skip_analized=1;
1236: goto break2;
1237: case 'e': // le ge ne [ee]
1238: result=c=='l'?SLE:c=='g'?SGE:c=='n'?SNE:BAD_STRING_COMPARISON_OPERATOR;
1239: skip_analized=1;
1240: goto break2;
1241: case 'q': // eq [lq gq nq]
1242: result=c=='e'?SEQ:BAD_STRING_COMPARISON_OPERATOR;
1243: skip_analized=1;
1244: goto break2;
1245: }
1.67 paf 1246: }
1247: break;
1248: case 'i':
1249: if(end==begin) // right after whitespace
1.206 paf 1250: if(isspace(pc.source[1])) {
1251: switch(pc.source[0]) {
1.117 paf 1252: case 'n': // in
1.95 paf 1253: skip_analized=1;
1254: result=IN;
1255: goto break2;
1.117 paf 1256: case 's': // is
1.95 paf 1257: skip_analized=1;
1258: result=IS;
1259: goto break2;
1260: }
1.67 paf 1261: }
1262: break;
1263: case 'd':
1264: if(end==begin) // right after whitespace
1.206 paf 1265: if(pc.source[0]=='e' && pc.source[1]=='f') { // def
1.225 misha 1266: switch(pc.source[2]){
1267: case ' ': case '\t': case '\n': case '"': case '\'': case '^': case '$': // non-quoted string without whitespace after 'def' is not allowed
1268: skip_analized=2;
1269: result=DEF;
1270: goto break2;
1271: }
1272: // error: incorrect char after 'def'
1.50 paf 1273: }
1.48 paf 1274: break;
1.216 paf 1275: case 't':
1276: if(end==begin) // right after whitespace
1.225 misha 1277: if(pc.source[0]=='r' && pc.source[1]=='u' && pc.source[2]=='e') { // true
1.216 paf 1278: skip_analized=3;
1279: result=LITERAL_TRUE;
1280: goto break2;
1281: }
1282: break;
1283: case 'f':
1284: if(end==begin) // right after whitespace
1.225 misha 1285: if(pc.source[0]=='a' && pc.source[1]=='l' && pc.source[2]=='s' && pc.source[3]=='e') { // false
1.216 paf 1286: skip_analized=4;
1287: result=LITERAL_FALSE;
1288: goto break2;
1289: }
1290: break;
1.48 paf 1291: case ' ': case '\t': case '\n':
1.63 paf 1292: if(end!=begin) { // there were a string after previous operator?
1293: result=0; // return that string
1294: goto break2;
1.48 paf 1295: }
1.63 paf 1296: // that's a leading|traling space or after-operator-space
1297: // ignoring it
1298: // reset piece 'begin' position & line
1.206 paf 1299: begin=pc.source; // after whitespace char
1300: begin_pos=pc.pos;
1.48 paf 1301: continue;
1.1 paf 1302: }
1303: break;
1.194 paf 1304: case LS_EXPRESSION_COMMENT:
1305: if(c=='(')
1306: lexical_brackets_nestage++;
1307:
1.206 paf 1308: switch(*pc.source) {
1.194 paf 1309: case '\n': case ')':
1.206 paf 1310: if(*pc.source==')')
1.194 paf 1311: if(--lexical_brackets_nestage!=0)
1312: continue;
1313:
1314: // skip comment
1.206 paf 1315: begin=pc.source;
1316: begin_pos=pc.pos;
1.194 paf 1317:
1.206 paf 1318: pop_LS(pc);
1.194 paf 1319: continue;
1320: }
1321: break;
1.1 paf 1322:
1.10 paf 1323: // VARIABLE GET/PUT/WITH
1.166 parser 1324: case LS_VAR_NAME_SIMPLE_WITH_COLON:
1325: case LS_VAR_NAME_SIMPLE_WITHOUT_COLON:
1326: case LS_EXPRESSION_VAR_NAME_WITH_COLON:
1327: case LS_EXPRESSION_VAR_NAME_WITHOUT_COLON:
1328: if(
1.206 paf 1329: pc.ls==LS_EXPRESSION_VAR_NAME_WITH_COLON ||
1330: pc.ls==LS_EXPRESSION_VAR_NAME_WITHOUT_COLON) {
1.181 paf 1331: // name in expr ends also before
1.48 paf 1332: switch(c) {
1.181 paf 1333: // expression minus
1.92 paf 1334: case '-':
1.181 paf 1335: // expression integer division
1336: case '\\':
1.206 paf 1337: pop_LS(pc);
1338: pc.ungetc();
1.48 paf 1339: result=EON;
1340: goto break2;
1341: }
1342: }
1.166 parser 1343: if(
1.206 paf 1344: pc.ls==LS_VAR_NAME_SIMPLE_WITHOUT_COLON ||
1345: pc.ls==LS_EXPRESSION_VAR_NAME_WITHOUT_COLON) {
1.142 parser 1346: // name already has ':', stop before next
1347: switch(c) {
1348: case ':':
1.206 paf 1349: pop_LS(pc);
1350: pc.ungetc();
1.142 parser 1351: result=EON;
1352: goto break2;
1353: }
1354: }
1.48 paf 1355: switch(c) {
1356: case 0:
1357: case ' ': case '\t': case '\n':
1358: case ';':
1.126 paf 1359: case ']': case '}': case ')':
1360: case '"': case '\'':
1.139 parser 1361: case '<': case '>': // these stand for HTML brackets AND expression binary ops
1.253 misha 1362: case '+': case '*': case '/': case '\\': case '%':
1.92 paf 1363: case '&': case '|':
1364: case '=': case '!':
1.99 paf 1365: // common delimiters
1.190 paf 1366: case ',': case '?': case '#':
1.220 paf 1367: // mysql column separators
1368: case '`':
1.139 parser 1369: // before call
1370: case '^':
1.206 paf 1371: pop_LS(pc);
1372: pc.ungetc();
1.13 paf 1373: result=EON;
1.1 paf 1374: goto break2;
1.48 paf 1375: case '[':
1.162 parser 1376: // $name.<[>code]
1.206 paf 1377: if(pc.pos.col>1/*not first column*/ && (
1.163 parser 1378: end[-1]=='$'/*was start of get*/ ||
1379: end[-1]==':'/*was class name delim */ ||
1380: end[-1]=='.'/*was name delim */
1.162 parser 1381: )) {
1.206 paf 1382: push_LS(pc, LS_NAME_SQUARE_PART);
1.162 parser 1383: lexical_brackets_nestage=1;
1384: RC;
1385: }
1.206 paf 1386: pc.ls=LS_VAR_SQUARE;
1.1 paf 1387: lexical_brackets_nestage=1;
1.48 paf 1388: RC;
1389: case '{':
1390: if(begin==end) { // ${name}, no need of EON, switching LS
1.206 paf 1391: pc.ls=LS_VAR_NAME_CURLY;
1.48 paf 1392: } else {
1.206 paf 1393: pc.ls=LS_VAR_CURLY;
1.48 paf 1394: lexical_brackets_nestage=1;
1395: }
1.69 paf 1396:
1.48 paf 1397: RC;
1398: case '(':
1.206 paf 1399: pc.ls=LS_VAR_ROUND;
1.1 paf 1400: lexical_brackets_nestage=1;
1.48 paf 1401: RC;
1402: case '.': // name part delim
1403: case '$': // name part subvar
1.160 parser 1404: case ':': // class<:>name
1.166 parser 1405: // go to _WITHOUT_COLON state variant...
1.206 paf 1406: if(pc.ls==LS_VAR_NAME_SIMPLE_WITH_COLON)
1407: pc.ls=LS_VAR_NAME_SIMPLE_WITHOUT_COLON;
1408: else if(pc.ls==LS_EXPRESSION_VAR_NAME_WITH_COLON)
1409: pc.ls=LS_EXPRESSION_VAR_NAME_WITHOUT_COLON;
1.166 parser 1410: // ...stop before next ':'
1.48 paf 1411: RC;
1.1 paf 1412: }
1413: break;
1.48 paf 1414:
1.1 paf 1415: case LS_VAR_NAME_CURLY:
1.48 paf 1416: switch(c) {
1.162 parser 1417: case '[':
1.166 parser 1418: // ${name.<[>code]}
1.206 paf 1419: push_LS(pc, LS_NAME_SQUARE_PART);
1.160 parser 1420: lexical_brackets_nestage=1;
1421: RC;
1.48 paf 1422: case '}': // ${name} finished, restoring LS
1.206 paf 1423: pop_LS(pc);
1.48 paf 1424: RC;
1425: case '.': // name part delim
1426: case '$': // name part subvar
1427: case ':': // ':name' or 'class:name'
1428: RC;
1.1 paf 1429: }
1430: break;
1.48 paf 1431:
1432: case LS_VAR_SQUARE:
1433: switch(c) {
1434: case '$':
1.206 paf 1435: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1436: RC;
1437: case '^':
1.206 paf 1438: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1439: RC;
1440: case ']':
1.1 paf 1441: if(--lexical_brackets_nestage==0) {
1.206 paf 1442: pop_LS(pc);
1.48 paf 1443: RC;
1.1 paf 1444: }
1.48 paf 1445: break;
1446: case ';': // operator_or_fmt;value delim
1447: RC;
1448: case '[':
1449: lexical_brackets_nestage++;
1450: break;
1.1 paf 1451: }
1452: break;
1.48 paf 1453:
1.1 paf 1454: case LS_VAR_CURLY:
1.48 paf 1455: switch(c) {
1456: case '$':
1.206 paf 1457: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1458: RC;
1459: case '^':
1.206 paf 1460: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1461: RC;
1462: case '}':
1.1 paf 1463: if(--lexical_brackets_nestage==0) {
1.206 paf 1464: pop_LS(pc);
1.48 paf 1465: RC;
1.1 paf 1466: }
1.48 paf 1467: break;
1468: case '{':
1.1 paf 1469: lexical_brackets_nestage++;
1.48 paf 1470: break;
1471: }
1.1 paf 1472: break;
1473:
1.10 paf 1474: // METHOD CALL
1.1 paf 1475: case LS_METHOD_NAME:
1.48 paf 1476: switch(c) {
1477: case '[':
1.166 parser 1478: // ^name.<[>code].xxx
1.206 paf 1479: if(pc.pos.col>1/*not first column*/ && (
1.163 parser 1480: end[-1]=='^'/*was start of call*/ || // never, ^[ is literal...
1481: end[-1]==':'/*was class name delim */ ||
1482: end[-1]=='.'/*was name delim */
1.162 parser 1483: )) {
1.206 paf 1484: push_LS(pc, LS_NAME_SQUARE_PART);
1.162 parser 1485: lexical_brackets_nestage=1;
1486: RC;
1487: }
1.206 paf 1488: pc.ls=LS_METHOD_SQUARE;
1.1 paf 1489: lexical_brackets_nestage=1;
1.48 paf 1490: RC;
1491: case '{':
1.206 paf 1492: pc.ls=LS_METHOD_CURLY;
1.1 paf 1493: lexical_brackets_nestage=1;
1.48 paf 1494: RC;
1.69 paf 1495: case '(':
1.206 paf 1496: pc.ls=LS_METHOD_ROUND;
1.69 paf 1497: lexical_brackets_nestage=1;
1498: RC;
1.48 paf 1499: case '.': // name part delim
1500: case '$': // name part subvar
1501: case ':': // ':name' or 'class:name'
1.170 parser 1502: case '^': // ^abc^xxx wrong. bailing out
1503: case ']': case '}': case ')': // ^abc]}) wrong. bailing out
1.207 paf 1504: case ' ': // ^if ( wrong. bailing out
1.48 paf 1505: RC;
1.1 paf 1506: }
1507: break;
1.48 paf 1508:
1509: case LS_METHOD_SQUARE:
1510: switch(c) {
1511: case '$':
1.206 paf 1512: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1513: RC;
1514: case '^':
1.206 paf 1515: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1516: RC;
1517: case ';': // param delim
1518: RC;
1519: case ']':
1.1 paf 1520: if(--lexical_brackets_nestage==0) {
1.206 paf 1521: pc.ls=LS_METHOD_AFTER;
1.48 paf 1522: RC;
1.1 paf 1523: }
1.48 paf 1524: break;
1525: case '[':
1.1 paf 1526: lexical_brackets_nestage++;
1.48 paf 1527: break;
1528: }
1.1 paf 1529: break;
1.48 paf 1530:
1.1 paf 1531: case LS_METHOD_CURLY:
1.48 paf 1532: switch(c) {
1533: case '$':
1.206 paf 1534: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1535: RC;
1536: case '^':
1.206 paf 1537: push_LS(pc, LS_METHOD_NAME);
1.94 paf 1538: RC;
1539: case ';': // param delim
1.48 paf 1540: RC;
1541: case '}':
1.1 paf 1542: if(--lexical_brackets_nestage==0) {
1.206 paf 1543: pc.ls=LS_METHOD_AFTER;
1.48 paf 1544: RC;
1.1 paf 1545: }
1.48 paf 1546: break;
1547: case '{':
1.1 paf 1548: lexical_brackets_nestage++;
1.48 paf 1549: break;
1550: }
1.209 paf 1551: if(pc.explicit_result && c)
1552: switch(c) {
1.276 moko 1553: default:
1554: pc.string.append(c);
1.209 paf 1555: case '\n': case ' ': case '\t':
1556: begin=pc.source;
1557: begin_pos=pc.pos;
1.276 moko 1558: continue;
1.209 paf 1559: }
1.1 paf 1560: break;
1.48 paf 1561:
1.1 paf 1562: case LS_METHOD_AFTER:
1.69 paf 1563: if(c=='[') {/* ][ }[ )[ */
1.206 paf 1564: pc.ls=LS_METHOD_SQUARE;
1.1 paf 1565: lexical_brackets_nestage=1;
1.48 paf 1566: RC;
1.281 moko 1567: }
1.69 paf 1568: if(c=='{') {/* ]{ }{ ){ */
1.206 paf 1569: pc.ls=LS_METHOD_CURLY;
1.69 paf 1570: lexical_brackets_nestage=1;
1571: RC;
1.281 moko 1572: }
1.69 paf 1573: if(c=='(') {/* ]( }( )( */
1.206 paf 1574: pc.ls=LS_METHOD_ROUND;
1.1 paf 1575: lexical_brackets_nestage=1;
1.48 paf 1576: RC;
1.281 moko 1577: }
1.206 paf 1578: pop_LS(pc);
1579: pc.ungetc();
1.13 paf 1580: result=EON;
1.1 paf 1581: goto break2;
1582: }
1.9 paf 1583: if(c==0) {
1.1 paf 1584: result=-1;
1585: break;
1586: }
1587: }
1588:
1589: break2:
1.59 paf 1590: if(end!=begin) { // there is last piece?
1.258 misha 1591: if(c=='@' || c==0) // we are before LS_DEF_NAME or EOF?
1592: while(end!=begin && end[-1]=='\n') // trim all empty lines before LS_DEF_NAME and EOF
1.137 parser 1593: end--;
1.206 paf 1594: if(end!=begin && pc.ls!=LS_USER_COMMENT) { // last piece still alive and not comment?
1595: if(!pc.string_start)
1596: pc.string_start=begin_pos;
1.59 paf 1597: // append it
1.206 paf 1598: pc.string.append_strdup_know_length(begin, end-begin);
1.30 paf 1599: }
1.59 paf 1600: }
1.206 paf 1601: if(!pc.string.is_empty()) { // something accumulated?
1602: // create STRING value: array of OP_VALUE+origin+vstring
1.278 moko 1603: #ifdef SYMBOLS_CACHING
1604: Value *lookup=symbols->get(pc.string);
1605: #else
1606: Value *lookup=0;
1607: #endif
1.281 moko 1608: *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 1609: // new pieces storage
1.206 paf 1610: pc.string.clear();
1611: pc.string_start.clear();
1.58 paf 1612: // make current result be pending for next call, return STRING for now
1.206 paf 1613: pc.pending_state=result; result=STRING;
1.58 paf 1614: }
1.67 paf 1615: if(skip_analized) {
1.206 paf 1616: pc.source+=skip_analized; pc.pos.col+=skip_analized;
1.1 paf 1617: }
1.58 paf 1618: return result;
1.1 paf 1619: }
1620:
1.264 moko 1621: static int real_yyerror(Parse_control *pc, const char *s) { // Called by yyparse on error
1.281 moko 1622: strncpy(PC.error, s, MAX_STRING);
1623: return 1;
1.110 paf 1624: }
1.1 paf 1625:
1.110 paf 1626: static void yyprint(FILE *file, int type, YYSTYPE value) {
1627: if(type==STRING)
1.206 paf 1628: fprintf(file, " \"%s\"", LA2S(*value)->cstr());
1.110 paf 1629: }
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