Annotation of parser3/src/main/compile.y, revision 1.290
1.168 parser 1: %{
1.105 paf 2: /** @file
1.106 paf 3: Parser: compiler(lexical parser and grammar).
4:
1.290 ! moko 5: Copyright (c) 2001-2020 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:
1.290 ! moko 11: volatile const char * IDENT_COMPILE_Y = "$Id: compile.y,v 1.289 2017/02/07 22:00:40 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 {
1.284 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
1.288 moko 170: VStateless_class* cclass=new VClass(name.cstr(), PC.request.get_used_filespec(PC.file_no));
1.226 misha 171: PC.cclass_new=cclass;
1.266 misha 172: PC.append=false;
1.73 paf 173: } else {
1.268 moko 174: strcpy(PC.error, "@" CLASS_NAME " must contain only one line with class name (contains more then one)");
1.34 paf 175: YYERROR;
176: }
1.130 paf 177: } else if(command==USE_CONTROL_METHOD_NAME) {
1.265 moko 178: CLASS_ADD;
1.273 moko 179: for(size_t i=0; i<strings_code->count(); i+=OPERATIONS_PER_OPVALUE){
1.288 moko 180: PC.request.use_file(LA2S(*strings_code, i)->trim(String::TRIM_END), PC.request.get_used_filespec(PC.file_no), strings_code->get(i+1).origin);
1.273 moko 181: }
1.130 paf 182: } else if(command==BASE_NAME) {
1.226 misha 183: if(PC.append){
1.281 moko 184: PC_ERROR("can't set base while appending methods to class '", PC.cclass->type(), "'");
1.226 misha 185: YYERROR;
186: }
1.265 moko 187: CLASS_ADD;
1.188 paf 188: if(PC.cclass->base_class()) { // already changed from default?
1.281 moko 189: PC_ERROR("class already have a base '", PC.cclass->base_class()->type(), "'");
1.130 paf 190: YYERROR;
191: }
1.206 paf 192: if(strings_code->count()==1*OPERATIONS_PER_OPVALUE) {
1.260 misha 193: const String& base_name=LA2S(*strings_code)->trim(String::TRIM_END);
1.283 moko 194: if(VStateless_class *base_class=PC.request.get_class(base_name)) {
1.206 paf 195: // @CLASS == @BASE sanity check
1.283 moko 196: if(PC.cclass==base_class) {
197: strcpy(PC.error, "@" CLASS_NAME " equals @" BASE_NAME);
1.206 paf 198: YYERROR;
199: }
1.283 moko 200: PC.cclass->get_class()->set_base(base_class);
1.206 paf 201: } else {
1.281 moko 202: PC_ERROR("'", base_name.cstr(), "': undefined class in @" BASE_NAME);
1.73 paf 203: YYERROR;
204: }
1.34 paf 205: } else {
1.268 moko 206: strcpy(PC.error, "@" BASE_NAME " must contain sole name");
1.34 paf 207: YYERROR;
208: }
1.223 misha 209: } else if(command==OPTIONS_CONTROL_METHOD_NAME) {
210: for(size_t i=0; i<strings_code->count(); i+=OPERATIONS_PER_OPVALUE) {
1.260 misha 211: const String& option=LA2S(*strings_code, i)->trim(String::TRIM_END);
1.279 moko 212: if(option==Symbols::LOCALS_SYMBOL){
1.226 misha 213: PC.set_all_vars_local();
1.279 moko 214: } else if(option==Symbols::PARTIAL_SYMBOL){
1.230 misha 215: if(PC.cclass_new){
216: if(VStateless_class* existed=PC.get_existed_class(PC.cclass_new)){
217: if(!PC.reuse_existed_class(existed)){
1.281 moko 218: PC_ERROR("can't append methods to '", PC.cclass_new->type(), "' - the class wasn't marked as partial");
1.230 misha 219: YYERROR;
220: }
1.226 misha 221: } else {
1.256 misha 222: // marks the new class as partial. we will be able to add methods here later.
1.230 misha 223: PC.cclass_new->set_partial();
1.226 misha 224: }
1.230 misha 225: } else {
1.279 moko 226: strcpy(PC.error, "'partial' option should be used straight after @" CLASS_NAME);
1.226 misha 227: YYERROR;
228: }
1.279 moko 229: } else if(option==Symbols::STATIC_SYMBOL){
1.256 misha 230: PC.set_methods_call_type(Method::CT_STATIC);
1.279 moko 231: } else if(option==Symbols::DYNAMIC_SYMBOL){
1.256 misha 232: PC.set_methods_call_type(Method::CT_DYNAMIC);
1.223 misha 233: } else {
1.281 moko 234: PC_ERROR("'", option.cstr(), "' invalid option. valid options are 'partial', 'locals', 'static' and 'dynamic'");
1.223 misha 235: YYERROR;
236: }
237: }
1.130 paf 238: } else {
1.281 moko 239: 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 240: YYERROR;
1.34 paf 241: }
242: };
1.132 paf 243: maybe_control_strings: empty | control_strings;
1.259 misha 244: control_strings: control_string | control_strings control_string { $$=$1; P(*$$, *$2); };
1.37 paf 245: control_string: maybe_string '\n';
246: maybe_string: empty | STRING;
1.34 paf 247:
1.222 misha 248: code_method: '@' STRING bracketed_maybe_strings maybe_bracketed_strings maybe_comment '\n' {
1.265 moko 249: CLASS_ADD;
1.208 paf 250: PC.explicit_result=false;
1.10 paf 251:
252: YYSTYPE params_names_code=$3;
1.206 paf 253: ArrayString* params_names=0;
254: if(int size=params_names_code->count()) {
255: params_names=new ArrayString;
256: for(int i=0; i<size; i+=OPERATIONS_PER_OPVALUE)
257: *params_names+=LA2S(*params_names_code, i);
1.75 paf 258: }
1.10 paf 259:
260: YYSTYPE locals_names_code=$4;
1.206 paf 261: ArrayString* locals_names=0;
1.284 moko 262: bool all_vars_local=PC.cclass->is_vars_local();
263:
1.206 paf 264: if(int size=locals_names_code->count()) {
265: locals_names=new ArrayString;
1.208 paf 266: for(int i=0; i<size; i+=OPERATIONS_PER_OPVALUE) {
267: const String* local_name=LA2S(*locals_names_code, i);
1.279 moko 268: if(SYMBOLS_EQ(*local_name,RESULT_SYMBOL))
1.208 paf 269: PC.explicit_result=true;
1.279 moko 270: else if(SYMBOLS_EQ(*local_name,LOCALS_SYMBOL))
1.223 misha 271: all_vars_local=true;
1.208 paf 272: else
273: *locals_names+=local_name;
274: }
1.75 paf 275: }
1.10 paf 276:
1.208 paf 277: Method* method=new Method(
1.206 paf 278: //name,
1.257 misha 279: GetMethodCallType(PC, *$2),
1.81 paf 280: 0, 0/*min,max numbered_params_count*/,
1.76 paf 281: params_names, locals_names,
1.223 misha 282: 0/*to be filled later in next {} */, 0, all_vars_local);
1.221 misha 283:
1.208 paf 284: *reinterpret_cast<Method**>(&$$)=method;
1.222 misha 285: } maybe_codes {
1.251 misha 286: Method* method=reinterpret_cast<Method*>($7);
1.231 misha 287: // fill in the code
1.251 misha 288: method->parser_code=$8;
1.231 misha 289:
290: // register in class
291: const String& name=*LA2S(*$2);
1.251 misha 292: PC.cclass->set_method(PC.alias_method(name), method);
1.8 paf 293: };
1.10 paf 294:
295: maybe_bracketed_strings: empty | bracketed_maybe_strings;
1.259 misha 296: bracketed_maybe_strings: '[' maybe_strings ']' {$$=$2;};
1.10 paf 297: maybe_strings: empty | strings;
1.259 misha 298: strings: STRING | strings ';' STRING { $$=$1; P(*$$, *$3); };
1.10 paf 299:
300: maybe_comment: empty | STRING;
1.1 paf 301:
302: /* codes */
303:
1.10 paf 304: maybe_codes: empty | codes;
305:
1.259 misha 306: codes: code | codes code { $$=$1; P(*$$, *$2); };
1.81 paf 307: code: write_string | action;
1.209 paf 308: action: get | put | call;
1.1 paf 309:
310: /* get */
311:
1.64 paf 312: get: get_value {
1.238 misha 313: $$=N();
314: YYSTYPE code=$1;
1.247 misha 315: size_t count=code->count();
1.245 misha 316:
1.235 misha 317: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
1.281 moko 318: if(count!=3 || !change_first(*code, OP::OP_VALUE__GET_ELEMENT, /*=>*/OP::OP_VALUE__GET_ELEMENT__WRITE) )
1.238 misha 319: #endif
1.247 misha 320:
1.245 misha 321: #ifdef OPTIMIZE_BYTECODE_GET_SELF_ELEMENT
1.281 moko 322: if(count!=3 || !change_first(*code, OP::OP_WITH_SELF__VALUE__GET_ELEMENT, /*=>*/OP::OP_WITH_SELF__VALUE__GET_ELEMENT__WRITE) )
1.245 misha 323: #endif
324:
1.239 misha 325: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_ELEMENT
1.281 moko 326: if(count!=5 || !change_first(*code, OP::OP_GET_OBJECT_ELEMENT, /*=>*/OP::OP_GET_OBJECT_ELEMENT__WRITE) )
1.239 misha 327: #endif
328:
329: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_VAR_ELEMENT
1.281 moko 330: if(count!=5 || !change_first(*code, OP::OP_GET_OBJECT_VAR_ELEMENT, /*=>*/OP::OP_GET_OBJECT_VAR_ELEMENT__WRITE) )
1.238 misha 331: #endif
1.267 misha 332:
333: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT__SPECIAL
1.281 moko 334: if(!change(*code, count-1/* last */, OP::OP_GET_ELEMENT__SPECIAL, /*=>*/OP::OP_GET_ELEMENT__SPECIAL__WRITE) )
1.267 misha 335: #endif
336:
1.247 misha 337: {
1.281 moko 338: change_or_append(*code, count-1 /* last */, OP::OP_GET_ELEMENT, /*=>*/OP::OP_GET_ELEMENT__WRITE, /*or */OP::OP_WRITE_VALUE ); /* value=pop; wcontext.write(value) */
1.246 misha 339: }
1.247 misha 340:
1.238 misha 341: P(*$$, *code);
1.1 paf 342: };
1.259 misha 343: get_value: '$' get_name_value { $$=$2; };
1.64 paf 344: get_name_value: name_without_curly_rdive EON | name_in_curly_rdive;
1.259 misha 345: name_in_curly_rdive: '{' name_without_curly_rdive '}' { $$=$2; };
1.44 paf 346: name_without_curly_rdive:
347: name_without_curly_rdive_read
348: | name_without_curly_rdive_class;
1.19 paf 349: name_without_curly_rdive_read: name_without_curly_rdive_code {
1.206 paf 350: $$=N();
1.238 misha 351: YYSTYPE diving_code=$1;
1.239 misha 352: size_t count=diving_code->count();
1.247 misha 353:
354: if(maybe_make_self(*$$, *diving_code, count)) {
355: // $self.
356: } else
1.239 misha 357:
358: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_ELEMENT
1.247 misha 359: if(maybe_make_get_object_element(*$$, *diving_code, count)){
1.245 misha 360: // optimization for $object.field + ^object.method[
1.247 misha 361: } else
1.238 misha 362: #endif
1.239 misha 363:
364: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_VAR_ELEMENT
1.247 misha 365: if(maybe_make_get_object_var_element(*$$, *diving_code, count)){
1.245 misha 366: // optimization for $object.$var
1.247 misha 367: } else
1.238 misha 368: #endif
1.239 misha 369:
370: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
1.281 moko 371: if(count>=4 && (*diving_code)[0].code==OP::OP_VALUE && (*diving_code)[3].code==OP::OP_GET_ELEMENT ){
1.248 misha 372: // optimization
1.239 misha 373: O(*$$,
1.247 misha 374: (PC.in_call_value && count==4)
1.239 misha 375: ? OP::OP_VALUE__GET_ELEMENT_OR_OPERATOR // ^object[ : OP_VALUE+origin+string+OP_GET_ELEMENT => OP_VALUE__GET_ELEMENT_OR_OPERATOR+origin+string
376: : OP::OP_VALUE__GET_ELEMENT // $object : OP_VALUE+origin+string+OP_GET_ELEMENT => OP_VALUE__GET_ELEMENT+origin+string
377: );
378: P(*$$, *diving_code, 1/*offset*/, 2/*limit*/); // copy origin+value
1.247 misha 379: if(count>4)
380: P(*$$, *diving_code, 4); // copy tail
1.239 misha 381: } else {
382: O(*$$, OP::OP_WITH_READ); /* stack: starting context */
383: P(*$$, *diving_code);
384: }
1.233 misha 385: #else
1.247 misha 386: {
1.238 misha 387: O(*$$, OP::OP_WITH_READ); /* stack: starting context */
1.179 paf 388:
1.238 misha 389: // ^if OP_ELEMENT => ^if OP_ELEMENT_OR_OPERATOR
390: // optimized OP_VALUE+origin+string+OP_GET_ELEMENT. => OP_VALUE+origin+string+OP_GET_ELEMENT_OR_OPERATOR.
1.239 misha 391: if(PC.in_call_value && count==4)
392: diving_code->put(count-1, OP::OP_GET_ELEMENT_OR_OPERATOR);
1.206 paf 393: P(*$$, *diving_code);
1.239 misha 394: }
1.233 misha 395: #endif
1.22 paf 396: /* diving code; stack: current context */
1.1 paf 397: };
1.259 misha 398: name_without_curly_rdive_class: class_prefix name_without_curly_rdive_code { $$=$1; P(*$$, *$2); };
399: name_without_curly_rdive_code: name_advance2 | name_path name_advance2 { $$=$1; P(*$$, *$2); };
1.1 paf 400:
401: /* put */
402:
1.81 paf 403: put: '$' name_expr_wdive construct {
1.241 misha 404: $$=N();
1.244 misha 405: #ifdef OPTIMIZE_BYTECODE_CONSTRUCT
406: if(maybe_optimize_construct(*$$, *$2, *$3)){
1.246 misha 407: // $a(expr), $.a(expr), $a[value], $.a[value], $self.a[value], $self.a(expr)
1.241 misha 408: } else
409: #endif
410: {
411: P(*$$, *$2); /* stack: context,name */
412: P(*$$, *$3); /* stack: context,name,constructor_value */
413: }
1.20 paf 414: };
1.44 paf 415: name_expr_wdive:
1.157 parser 416: name_expr_wdive_root
417: | name_expr_wdive_write
1.44 paf 418: | name_expr_wdive_class;
1.157 parser 419: name_expr_wdive_root: name_expr_dive_code {
1.206 paf 420: $$=N();
1.238 misha 421: YYSTYPE diving_code=$1;
1.247 misha 422: size_t count=diving_code->count();
423:
424: if(maybe_make_self(*$$, *diving_code, count)) {
425: // $self.
426: } else
427: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
1.281 moko 428: if(count>=4 && (*diving_code)[0].code==OP::OP_VALUE && (*diving_code)[3].code==OP::OP_GET_ELEMENT ){
1.247 misha 429: O(*$$, OP::OP_WITH_ROOT__VALUE__GET_ELEMENT);
430: P(*$$, *diving_code, 1/*offset*/, 2/*limit*/); // copy origin+value
431: if(count>4)
432: P(*$$, *diving_code, 4); // tail
433: } else
434: #endif
435: {
1.229 misha 436: O(*$$, OP::OP_WITH_ROOT); /* stack: starting context */
1.206 paf 437: P(*$$, *diving_code);
1.23 paf 438: }
439: /* diving code; stack: current context */
1.156 parser 440: };
1.157 parser 441: name_expr_wdive_write: '.' name_expr_dive_code {
1.206 paf 442: $$=N();
1.229 misha 443: O(*$$, OP::OP_WITH_WRITE); /* stack: starting context */
1.206 paf 444: P(*$$, *$2); /* diving code; stack: context,name */
1.20 paf 445: };
1.259 misha 446: name_expr_wdive_class: class_prefix name_expr_dive_code { $$=$1; P(*$$, *$2); };
1.20 paf 447:
1.244 misha 448: construct:
1.163 parser 449: construct_square
450: | construct_round
451: | construct_curly
1.149 parser 452: ;
1.211 paf 453: construct_square: '[' {
454: // allow $result_or_other_variable[ letters here any time ]
455: *reinterpret_cast<bool*>(&$$)=PC.explicit_result; PC.explicit_result=false;
456: } any_constructor_code_value {
1.213 paf 457: PC.explicit_result=*reinterpret_cast<bool*>(&$2);
1.211 paf 458: } ']' {
1.149 parser 459: // stack: context, name
1.211 paf 460: $$=$3; // stack: context, name, value
1.229 misha 461: O(*$$, OP::OP_CONSTRUCT_VALUE); /* value=pop; name=pop; context=pop; construct(context,name,value) */
1.81 paf 462: }
463: ;
1.149 parser 464: construct_round: '(' expr_value ')' {
1.206 paf 465: $$=N();
1.149 parser 466: // stack: context, name
1.206 paf 467: P(*$$, *$2); // stack: context, name, value
1.229 misha 468: O(*$$, OP::OP_CONSTRUCT_EXPR); /* value=pop->as_expr_result; name=pop; context=pop; construct(context,name,value) */
1.81 paf 469: }
1.52 paf 470: ;
1.149 parser 471: construct_curly: '{' maybe_codes '}' {
472: // stack: context, name
1.206 paf 473: $$=N();
1.229 misha 474: OA(*$$, OP::OP_CURLY_CODE__CONSTRUCT, $2); /* code=pop; name=pop; context=pop; construct(context,name,junction(code)) */
1.149 parser 475: };
476:
1.55 paf 477: any_constructor_code_value:
1.261 moko 478: empty_value /* optimized $var[] case */
1.52 paf 479: | STRING /* optimized $var[STRING] case */
1.55 paf 480: | constructor_code_value /* $var[something complex] */
1.1 paf 481: ;
1.55 paf 482: constructor_code_value: constructor_code {
1.206 paf 483: $$=N();
1.229 misha 484: OA(*$$, OP::OP_OBJECT_POOL, $1); /* stack: empty write context */
1.183 paf 485: /* some code that writes to that context */
486: /* context=pop; stack: context.value() */
1.1 paf 487: };
1.55 paf 488: constructor_code: codes__excluding_sole_str_literal;
1.259 misha 489: codes__excluding_sole_str_literal: action | code codes { $$=$1; P(*$$, *$2); };
1.27 paf 490:
1.1 paf 491: /* call */
492:
1.66 paf 493: call: call_value {
1.267 misha 494: size_t count=$1->count();
1.238 misha 495: #ifdef OPTIMIZE_BYTECODE_CUT_REM_OPERATOR
1.267 misha 496: if(count)
1.238 misha 497: #endif
498: {
499: $$=$1; /* stack: value */
1.281 moko 500: if(!change_first(*$$, OP::OP_CONSTRUCT_OBJECT, /*=>*/ OP::OP_CONSTRUCT_OBJECT__WRITE))
501: change_or_append(*$$, count-2 /* second last */, OP::OP_CALL, /*=>*/ OP::OP_CALL__WRITE, /*or */ OP::OP_WRITE_VALUE); /* value=pop; wcontext.write(value) */
1.238 misha 502: }
1.66 paf 503: };
1.177 paf 504: call_value: '^' {
1.281 moko 505: PC.in_call_value=true;
506: }
507: call_name {
508: PC.in_call_value=false;
509: }
510: store_params EON { /* ^field.$method{vasya} */
1.238 misha 511: #ifdef OPTIMIZE_BYTECODE_CUT_REM_OPERATOR
1.242 misha 512: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
1.238 misha 513: const String* operator_name=LA2S(*$3, 0, OP::OP_VALUE__GET_ELEMENT_OR_OPERATOR);
1.242 misha 514: #else
515: const String* operator_name=LA2S(*$3, 1);
516: #endif
1.279 moko 517: if(operator_name && SYMBOLS_EQ(*operator_name,REM_SYMBOL)){
1.238 misha 518: $$=N();
519: } else
520: #endif
521: {
522: YYSTYPE params_code=$5;
523: if(params_code->count()==3) { // probably [] case. [OP::OP_VALUE+origin+Void]
524: if(Value* value=LA2V(*params_code)) // it is OP_VALUE+origin+value?
1.261 moko 525: if(const String * string=value->get_string())
526: if(string->is_empty()) // value is empty string?
527: params_code=0; // ^zzz[] case. don't append lone empty param.
1.238 misha 528: }
529: /* stack: context, method_junction */
1.249 misha 530:
531: YYSTYPE var_code=$3;
532: if(
533: var_code->count()==8
1.282 moko 534: && ( (*var_code)[0].code==OP::OP_VALUE__GET_CLASS || (*var_code)[0].code==OP::OP_VALUE__GET_BASE_CLASS )
1.249 misha 535: && (*var_code)[3].code==OP::OP_PREPARE_TO_CONSTRUCT_OBJECT
536: && (*var_code)[4].code==OP::OP_VALUE
1.272 moko 537: #ifdef FEATURE_GET_ELEMENT4CALL
538: && (*var_code)[7].code==OP::OP_GET_ELEMENT4CALL
539: #else
1.249 misha 540: && (*var_code)[7].code==OP::OP_GET_ELEMENT
1.272 moko 541: #endif
1.249 misha 542: ){
1.267 misha 543: $$=N();
1.249 misha 544: O(*$$, OP::OP_CONSTRUCT_OBJECT);
545: P(*$$, *var_code, 1/*offset*/, 2/*limit*/); // class name
546: P(*$$, *var_code, 5/*offset*/, 2/*limit*/); // constructor name
547: OA(*$$, params_code);
548: } else
549: {
550: $$=var_code; /* with_xxx,diving code; stack: context,method_junction */
551: OA(*$$, OP::OP_CALL, params_code); // method_frame=make frame(pop junction); ncontext=pop; call(ncontext,method_frame) stack: value
552: }
1.238 misha 553: }
1.1 paf 554: };
555:
1.272 moko 556: call_name: name_without_curly_rdive {
557: #ifdef FEATURE_GET_ELEMENT4CALL
558: size_t count=$1->count();
559: if(count){
560: $$=$1;
561: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_ELEMENT
562: !(count==5 && change_first(*$$, OP::OP_GET_OBJECT_ELEMENT, OP::OP_GET_OBJECT_ELEMENT4CALL)) &&
563: #endif
564: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_VAR_ELEMENT
565: !(count==5 && change_first(*$$, OP::OP_GET_OBJECT_VAR_ELEMENT, OP::OP_GET_OBJECT_VAR_ELEMENT4CALL)) &&
566: #endif
567: !change(*$$, count-1, OP::OP_GET_ELEMENT, OP::OP_GET_ELEMENT4CALL);
568: }
569: #endif
570: };
1.38 paf 571:
1.259 misha 572: store_params: store_param | store_params store_param { $$=$1; P(*$$, *$2); };
1.69 paf 573: store_param:
574: store_square_param
575: | store_round_param
576: | store_curly_param
1.31 paf 577: ;
1.210 paf 578: store_square_param: '[' {
1.211 paf 579: // allow ^call[ letters here any time ]
1.210 paf 580: *reinterpret_cast<bool*>(&$$)=PC.explicit_result; PC.explicit_result=false;
581: } store_code_param_parts {
1.213 paf 582: PC.explicit_result=*reinterpret_cast<bool*>(&$2);
1.259 misha 583: } ']' {$$=$3;};
584: store_round_param: '(' store_expr_param_parts ')' {$$=$2;};
585: store_curly_param: '{' store_curly_param_parts '}' {$$=$2;};
1.69 paf 586: store_code_param_parts:
587: store_code_param_part
1.259 misha 588: | store_code_param_parts ';' store_code_param_part { $$=$1; P(*$$, *$3); }
1.69 paf 589: ;
590: store_expr_param_parts:
591: store_expr_param_part
1.259 misha 592: | store_expr_param_parts ';' store_expr_param_part { $$=$1; P(*$$, *$3); }
1.69 paf 593: ;
1.94 paf 594: store_curly_param_parts:
595: store_curly_param_part
1.259 misha 596: | store_curly_param_parts ';' store_curly_param_part { $$=$1; P(*$$, *$3); }
1.94 paf 597: ;
1.120 paf 598: store_code_param_part: code_param_value {
1.32 paf 599: $$=$1;
1.120 paf 600: };
1.214 paf 601: store_expr_param_part: expr_value {
602: YYSTYPE expr_code=$1;
1.215 paf 603: if(expr_code->count()==3
1.234 misha 604: && (*expr_code)[0].code==OP::OP_VALUE) { // optimizing (double/bool/incidently 'string' too) case. [OP::OP_VALUE+origin+Double]. no evaluating
1.214 paf 605: $$=expr_code;
606: } else {
1.238 misha 607: YYSTYPE code=N();
1.214 paf 608: P(*code, *expr_code);
1.229 misha 609: O(*code, OP::OP_WRITE_EXPR_RESULT);
1.214 paf 610: $$=N();
1.229 misha 611: OA(*$$, OP::OP_EXPR_CODE__STORE_PARAM, code);
1.214 paf 612: }
1.69 paf 613: };
1.94 paf 614: store_curly_param_part: maybe_codes {
1.206 paf 615: $$=N();
1.229 misha 616: OA(*$$, OP::OP_CURLY_CODE__STORE_PARAM, $1);
1.94 paf 617: };
1.120 paf 618: code_param_value:
1.261 moko 619: empty_value /* optimized [;...] case */
1.120 paf 620: | STRING /* optimized [STRING] case */
621: | constructor_code_value /* [something complex] */
622: ;
1.1 paf 623:
624: /* name */
625:
1.259 misha 626: name_expr_dive_code: name_expr_value | name_path name_expr_value { $$=$1; P(*$$, *$2); };
1.1 paf 627:
1.259 misha 628: name_path: name_step | name_path name_step { $$=$1; P(*$$, *$2); };
1.1 paf 629: name_step: name_advance1 '.';
630: name_advance1: name_expr_value {
1.177 paf 631: // we know that name_advance1 not called from ^xxx context
632: // so we'll not check for operator call possibility as we do in name_advance2
633:
1.1 paf 634: /* stack: context */
635: $$=$1; /* stack: context,name */
1.267 misha 636: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT__SPECIAL
637: O(*$$, is_special_element(*$$) ? OP::OP_GET_ELEMENT__SPECIAL : OP::OP_GET_ELEMENT);
638: #else
1.229 misha 639: O(*$$, OP::OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */
1.267 misha 640: #endif
1.1 paf 641: };
642: name_advance2: name_expr_value {
643: /* stack: context */
644: $$=$1; /* stack: context,name */
1.267 misha 645: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT__SPECIAL
646: O(*$$, is_special_element(*$$) ? OP::OP_GET_ELEMENT__SPECIAL : OP::OP_GET_ELEMENT);
647: #else
1.229 misha 648: O(*$$, OP::OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */
1.267 misha 649: #endif
1.1 paf 650: }
1.4 paf 651: | STRING BOGUS
1.1 paf 652: ;
653: name_expr_value:
1.4 paf 654: STRING /* subname_is_const */
1.1 paf 655: | name_expr_subvar_value /* $subname_is_var_value */
1.160 parser 656: | name_expr_with_subvar_value /* xxx$part_of_subname_is_var_value */
1.166 parser 657: | name_square_code_value /* [codes] */
1.1 paf 658: ;
659: name_expr_subvar_value: '$' subvar_ref_name_rdive {
660: $$=$2;
1.229 misha 661: O(*$$, OP::OP_GET_ELEMENT);
1.1 paf 662: };
1.4 paf 663: name_expr_with_subvar_value: STRING subvar_get_writes {
1.238 misha 664: YYSTYPE code;
1.183 paf 665: {
1.206 paf 666: change_string_literal_to_write_string_literal(*(code=$1));
667: P(*code, *$2);
1.183 paf 668: }
1.206 paf 669: $$=N();
1.229 misha 670: OA(*$$, OP::OP_STRING_POOL, code);
1.1 paf 671: };
1.212 paf 672: name_square_code_value: '[' {
673: // allow $result_or_other_variable[ letters here any time ]
674: *reinterpret_cast<bool*>(&$$)=PC.explicit_result; PC.explicit_result=false;
675: } codes {
1.213 paf 676: PC.explicit_result=*reinterpret_cast<bool*>(&$2);
1.212 paf 677: } ']' {
1.206 paf 678: $$=N();
1.267 misha 679: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT__SPECIAL
680: if(!maybe_append_simple_diving_code(*$$, *$3))
681: #endif
682: {
1.281 moko 683: OA(*$$, OP::OP_OBJECT_POOL, $3); /* stack: empty write context */
684: /* some code that writes to that context */
685: /* context=pop; stack: context.value() */
1.267 misha 686: }
1.160 parser 687: };
1.154 parser 688: subvar_ref_name_rdive: STRING {
1.206 paf 689: $$=N();
1.229 misha 690: O(*$$, OP::OP_WITH_READ);
1.206 paf 691: P(*$$, *$1);
1.1 paf 692: };
1.259 misha 693: subvar_get_writes: subvar__get_write | subvar_get_writes subvar__get_write { $$=$1; P(*$$, *$2); };
1.1 paf 694: subvar__get_write: '$' subvar_ref_name_rdive {
695: $$=$2;
1.229 misha 696: O(*$$, OP::OP_GET_ELEMENT__WRITE);
1.42 paf 697: };
698:
1.154 parser 699: class_prefix:
700: class_static_prefix
701: | class_constructor_prefix
702: ;
1.155 parser 703: class_static_prefix: STRING ':' {
704: $$=$1; // stack: class name string
1.282 moko 705: OP::OPCODE code = OP::OP_VALUE__GET_CLASS;
1.206 paf 706: if(*LA2S(*$$) == BASE_NAME) { // pseudo BASE class
707: if(VStateless_class* base=PC.cclass->base_class()) {
1.275 moko 708: change_string_literal_value(*$$, *new String(base->type()));
1.189 paf 709: } else {
710: strcpy(PC.error, "no base class declared");
711: YYERROR;
712: }
1.282 moko 713: code = OP::OP_VALUE__GET_BASE_CLASS;
714: } else {
1.283 moko 715: // can't use get_class because it will call @autouse[] if the class wasn't loaded
716: VStateless_class* base=PC.request.classes().get(*LA2S(*$$));
717: if(base && PC.cclass->derived_from(*base))
1.282 moko 718: code = OP::OP_VALUE__GET_BASE_CLASS;
1.189 paf 719: }
1.238 misha 720: // optimized OP_VALUE+origin+string+OP_GET_CLASS => OP_VALUE__GET_CLASS+origin+string
1.282 moko 721: change_first(*$$, OP::OP_VALUE, code);
1.155 parser 722: };
723: class_constructor_prefix: class_static_prefix ':' {
1.154 parser 724: $$=$1;
1.180 paf 725: if(!PC.in_call_value) {
1.154 parser 726: strcpy(PC.error, ":: not allowed here");
727: YYERROR;
728: }
1.229 misha 729: O(*$$, OP::OP_PREPARE_TO_CONSTRUCT_OBJECT);
1.1 paf 730: };
731:
1.53 paf 732:
1.56 paf 733: /* expr */
1.53 paf 734:
1.214 paf 735: expr_value: expr;
1.56 paf 736: expr:
1.214 paf 737: double_or_STRING
1.216 paf 738: | true_value
739: | false_value
1.64 paf 740: | get_value
1.66 paf 741: | call_value
1.259 misha 742: | '"' string_inside_quotes_value '"' { $$ = $2; }
743: | '\'' string_inside_quotes_value '\'' { $$ = $2; }
1.60 paf 744: | '(' expr ')' { $$ = $2; }
745: /* stack: operand // stack: @operand */
1.259 misha 746: | '-' expr %prec NUNARY { $$=$2; O(*$$, OP::OP_NEG); }
747: | '+' expr %prec NUNARY { $$=$2; }
748: | '~' expr { $$=$2; O(*$$, OP::OP_INV); }
749: | '!' expr { $$=$2; O(*$$, OP::OP_NOT); }
750: | "def" expr { $$=$2; O(*$$, OP::OP_DEF); }
751: | "in" expr { $$=$2; O(*$$, OP::OP_IN); }
752: | "-f" expr { $$=$2; O(*$$, OP::OP_FEXISTS); }
753: | "-d" expr { $$=$2; O(*$$, OP::OP_DEXISTS); }
1.60 paf 754: /* stack: a,b // stack: a@b */
1.259 misha 755: | expr '-' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_SUB); }
756: | expr '+' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_ADD); }
757: | expr '*' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_MUL); }
758: | expr '/' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_DIV); }
759: | expr '%' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_MOD); }
760: | expr '\\' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_INTDIV); }
761: | expr "<<" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_SL); }
762: | expr ">>" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_SR); }
763: | expr '&' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_AND); }
764: | expr '|' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_OR); }
765: | expr "!|" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_XOR); }
766: | expr "&&" expr { $$=$1; OA(*$$, OP::OP_NESTED_CODE, $3); O(*$$, OP::OP_LOG_AND); }
767: | expr "||" expr { $$=$1; OA(*$$, OP::OP_NESTED_CODE, $3); O(*$$, OP::OP_LOG_OR); }
768: | expr "!||" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_LOG_XOR); }
769: | expr '<' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_LT); }
770: | expr '>' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_GT); }
771: | expr "<=" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_LE); }
772: | expr ">=" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_GE); }
773: | expr "==" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_EQ); }
774: | expr "!=" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_NE); }
775: | expr "lt" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_LT); }
776: | expr "gt" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_GT); }
777: | expr "le" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_LE); }
778: | expr "ge" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_GE); }
779: | expr "eq" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_EQ); }
780: | expr "ne" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_NE); }
781: | expr "is" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_IS); }
1.56 paf 782: ;
1.214 paf 783:
784: double_or_STRING: STRING {
1.238 misha 785: // optimized OP_STRING => OP_VALUE for doubles
1.214 paf 786: maybe_change_string_literal_to_double_literal(*($$=$1));
787: };
1.55 paf 788:
1.65 paf 789: string_inside_quotes_value: maybe_codes {
1.238 misha 790: #ifdef OPTIMIZE_BYTECODE_STRING_POOL
791: // it brakes ^if(" 09 "){...}
792: YYSTYPE code=$1;
793: $$=N();
1.267 misha 794: if(code->count()==3 && change_first(*code, OP::OP_STRING__WRITE, OP::OP_VALUE)){
1.238 misha 795: // optimized OP_STRING__WRITE+origin+value => OP_VALUE+origin+value without starting OP_STRING_POOL
796: P(*$$, *code);
797: } else {
798: OA(*$$, OP::OP_STRING_POOL, code); /* stack: empty write context */
799: }
800: #else
1.206 paf 801: $$=N();
1.229 misha 802: OA(*$$, OP::OP_STRING_POOL, $1); /* stack: empty write context */
1.238 misha 803: #endif
1.183 paf 804: /* some code that writes to that context */
805: /* context=pop; stack: context.get_string() */
1.53 paf 806: };
1.1 paf 807:
1.27 paf 808: /* basics */
1.1 paf 809:
1.81 paf 810: write_string: STRING {
1.238 misha 811: // optimized OP_STRING+OP_WRITE_VALUE => OP_STRING__WRITE
1.259 misha 812: change_string_literal_to_write_string_literal(*($$=$1));
1.54 paf 813: };
814:
1.261 moko 815: empty_value: /* empty */ { $$=VL(/*we know that we will not change it*/const_cast<VString*>(&vempty), 0, 0, 0); }
1.259 misha 816: true_value: "true" { $$ = VL(/*we know that we will not change it*/const_cast<VBool*>(&vtrue), 0, 0, 0); }
817: false_value: "false" { $$ = VL(/*we know that we will not change it*/const_cast<VBool*>(&vfalse), 0, 0, 0); }
1.216 paf 818:
1.259 misha 819: empty: /* empty */ { $$=N(); };
1.1 paf 820:
821: %%
1.105 paf 822: #endif
1.1 paf 823:
824: /*
825: 000$111(2222)00
826: 000$111{3333}00
1.9 paf 827: $,^: push,=0
1.1 paf 828: 1:( { break=pop
829: 2:( ) pop
830: 3:{ } pop
831:
832: 000^111(2222)4444{33333}4000
1.9 paf 833: $,^: push,=0
1.1 paf 834: 1:( { break=pop
835: 2:( )=4
836: 3:{ }=4
837: 4:[^({]=pop
838: */
839:
1.206 paf 840: inline void ungetc(Parse_control& pc, uint last_line_end_col) {
841: pc.source--;
842: if(pc.pos.col==0) {
843: --pc.pos.line; pc.pos.col=last_line_end_col;
844: } else
845: --pc.pos.col;
846:
847: }
848: static int yylex(YYSTYPE *lvalp, void *apc) {
849: register Parse_control& pc=*static_cast<Parse_control*>(apc);
850:
851: #define lexical_brackets_nestage pc.brackets_nestages[pc.ls_sp]
1.48 paf 852: #define RC {result=c; goto break2; }
1.1 paf 853:
1.206 paf 854: register int c;
855: int result;
1.1 paf 856:
1.206 paf 857: if(pc.pending_state) {
858: result=pc.pending_state;
859: pc.pending_state=0;
1.1 paf 860: return result;
861: }
862:
1.206 paf 863: const char *begin=pc.source;
864: Pos begin_pos=pc.pos;
1.91 paf 865: const char *end;
1.67 paf 866: int skip_analized=0;
1.50 paf 867: while(true) {
1.206 paf 868: c=*(end=(pc.source++));
869: // fprintf(stderr, "\nchar: %c %02X; nestage: %d, sp=%d", c, c, lexical_brackets_nestage, pc.sp);
1.1 paf 870:
1.208 paf 871: if(c=='\n')
1.206 paf 872: pc.pos_next_line();
1.208 paf 873: else
1.206 paf 874: pc.pos_next_c(c);
1.208 paf 875: // fprintf(stderr, "\nchar: %c file(%d:%d)", c, pc.pos.line, pc.pos.col);
1.73 paf 876:
1.208 paf 877: if(pc.pos.col==0+1 && c=='@') {
1.206 paf 878: if(pc.ls==LS_DEF_SPECIAL_BODY) {
1.175 paf 879: // @SPECIAL
880: // ...
881: // @<here =
1.206 paf 882: pop_LS(pc); // exiting from LS_DEF_SPECIAL_BODY state
1.175 paf 883: } // continuing checks
1.206 paf 884: if(pc.ls==LS_USER) {
885: push_LS(pc, LS_DEF_NAME);
1.171 parser 886: RC;
1.175 paf 887: } else // @ in first column inside some code [when could that be?]
1.171 parser 888: result=BAD_METHOD_DECL_START;
889: goto break2;
1.209 paf 890: }
891: if(c=='^') {
1.206 paf 892: if(pc.ls==LS_METHOD_AFTER) {
1.203 paf 893: // handle after-method situation
1.206 paf 894: pop_LS(pc);
1.203 paf 895: result=EON;
896: skip_analized=-1; // return to punctuation afterwards to assure it's literality
897: goto break2;
898: }
1.206 paf 899: switch(pc.ls) {
1.169 parser 900: case LS_EXPRESSION_VAR_NAME_WITH_COLON:
901: case LS_EXPRESSION_VAR_NAME_WITHOUT_COLON:
902: case LS_VAR_NAME_SIMPLE_WITH_COLON:
903: case LS_VAR_NAME_SIMPLE_WITHOUT_COLON:
904: case LS_VAR_NAME_CURLY:
905: case LS_METHOD_NAME:
1.194 paf 906: case LS_USER_COMMENT:
1.169 parser 907: case LS_DEF_COMMENT:
908: // no literals in names, please
909: break;
910: default:
1.206 paf 911: switch(*pc.source) {
1.165 parser 912: // ^escaping some punctuators
1.228 misha 913: case '^': case '$': case ';': case '@':
1.126 paf 914: case '(': case ')':
1.48 paf 915: case '[': case ']':
916: case '{': case '}':
1.172 parser 917: case '"': case ':':
1.40 paf 918: if(end!=begin) {
1.206 paf 919: if(!pc.string_start)
920: pc.string_start=begin_pos;
1.40 paf 921: // append piece till ^
1.206 paf 922: pc.string.append_strdup_know_length(begin, end-begin);
1.40 paf 923: }
1.63 paf 924: // reset piece 'begin' position & line
1.206 paf 925: begin=pc.source; // ->punctuation
926: begin_pos=pc.pos;
1.203 paf 927: // skip over _ after ^
1.206 paf 928: pc.source++; pc.pos.col++;
1.203 paf 929: // skip analysis = forced literal
930: continue;
1.114 paf 931:
932: // converting ^#HH into char(hex(HH))
933: case '#':
934: if(end!=begin) {
1.206 paf 935: if(!pc.string_start)
936: pc.string_start=begin_pos;
1.114 paf 937: // append piece till ^
1.206 paf 938: pc.string.append_strdup_know_length(begin, end-begin);
1.114 paf 939: }
940: // #HH ?
1.228 misha 941: if(pc.source[1] && isxdigit(pc.source[1]) && pc.source[2] && isxdigit(pc.source[2])) {
1.218 paf 942: char c=(char)(
1.206 paf 943: hex_value[(unsigned char)pc.source[1]]*0x10+
1.218 paf 944: hex_value[(unsigned char)pc.source[2]]);
1.206 paf 945: if(c==0) {
1.114 paf 946: result=BAD_HEX_LITERAL;
947: goto break2; // wrong hex value[no ^#00 chars allowed]: bail out
948: }
949: // append char(hex(HH))
1.206 paf 950: pc.string.append(c);
1.114 paf 951: // skip over ^#HH
1.206 paf 952: pc.source+=3;
953: pc.pos.col+=3;
1.114 paf 954: // reset piece 'begin' position & line
1.206 paf 955: begin=pc.source; // ->after ^#HH
956: begin_pos=pc.pos;
1.203 paf 957: // skip analysis = forced literal
1.114 paf 958: continue;
959: }
1.228 misha 960: // just escaped char
961: // reset piece 'begin' position & line
962: begin=pc.source;
963: begin_pos=pc.pos;
964: // skip over _ after ^
965: pc.source++; pc.pos.col++;
966: // skip analysis = forced literal
967: continue;
1.1 paf 968: }
1.169 parser 969: break;
1.203 paf 970: }
1.169 parser 971: }
1.113 paf 972: // #comment start skipping
1.206 paf 973: if(c=='#' && pc.pos.col==1) {
1.112 paf 974: if(end!=begin) {
1.206 paf 975: if(!pc.string_start)
976: pc.string_start=begin_pos;
1.112 paf 977: // append piece till #
1.206 paf 978: pc.string.append_strdup_know_length(begin, end-begin);
1.112 paf 979: }
980: // fall into COMMENT lexical state [wait for \n]
1.206 paf 981: push_LS(pc, LS_USER_COMMENT);
1.175 paf 982: continue;
1.112 paf 983: }
1.206 paf 984: switch(pc.ls) {
1.10 paf 985:
986: // USER'S = NOT OURS
1.1 paf 987: case LS_USER:
1.206 paf 988: case LS_NAME_SQUARE_PART: // name.[here].xxx
989: if(pc.trim_bof)
1.153 parser 990: switch(c) {
991: case '\n': case ' ': case '\t':
1.206 paf 992: begin=pc.source;
993: begin_pos=pc.pos;
1.152 parser 994: continue; // skip it
1.153 parser 995: default:
1.206 paf 996: pc.trim_bof=false;
1.152 parser 997: }
1.48 paf 998: switch(c) {
999: case '$':
1.206 paf 1000: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1001: RC;
1002: case '^':
1.206 paf 1003: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1004: RC;
1.166 parser 1005: case ']':
1.206 paf 1006: if(pc.ls==LS_NAME_SQUARE_PART)
1.166 parser 1007: if(--lexical_brackets_nestage==0) {// $name.[co<]?>de<]?>
1.206 paf 1008: pop_LS(pc); // $name.[co<]>de<]!>
1.166 parser 1009: RC;
1010: }
1.160 parser 1011: break;
1.166 parser 1012: case '[': // $name.[co<[>de]
1.206 paf 1013: if(pc.ls==LS_NAME_SQUARE_PART)
1.166 parser 1014: lexical_brackets_nestage++;
1.161 parser 1015: break;
1.112 paf 1016: }
1.209 paf 1017: if(pc.explicit_result && c)
1018: switch(c) {
1.276 moko 1019: default:
1020: pc.string.append(c);
1.209 paf 1021: case '\n': case ' ': case '\t':
1022: begin=pc.source;
1023: begin_pos=pc.pos;
1.276 moko 1024: continue;
1.209 paf 1025: }
1.112 paf 1026: break;
1027:
1028: // #COMMENT
1.194 paf 1029: case LS_USER_COMMENT:
1.112 paf 1030: if(c=='\n') {
1031: // skip comment
1.206 paf 1032: begin=pc.source;
1033: begin_pos=pc.pos;
1.112 paf 1034:
1.206 paf 1035: pop_LS(pc);
1.112 paf 1036: continue;
1.1 paf 1037: }
1.48 paf 1038: break;
1039:
1040: // STRING IN EXPRESSION
1.145 parser 1041: case LS_EXPRESSION_STRING_QUOTED:
1042: case LS_EXPRESSION_STRING_APOSTROFED:
1.48 paf 1043: switch(c) {
1044: case '"':
1.145 parser 1045: case '\'':
1046: if(
1.270 moko 1047: (pc.ls == LS_EXPRESSION_STRING_QUOTED && c=='"') ||
1048: (pc.ls == LS_EXPRESSION_STRING_APOSTROFED && c=='\'') ) {
1.206 paf 1049: pop_LS(pc); //"abc". | 'abc'.
1.145 parser 1050: RC;
1051: }
1052: break;
1.48 paf 1053: case '$':
1.206 paf 1054: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1055: RC;
1056: case '^':
1.206 paf 1057: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1058: RC;
1.10 paf 1059: }
1060: break;
1061:
1062: // METHOD DEFINITION
1063: case LS_DEF_NAME:
1.48 paf 1064: switch(c) {
1065: case '[':
1.206 paf 1066: pc.ls=LS_DEF_PARAMS;
1.48 paf 1067: RC;
1068: case '\n':
1.206 paf 1069: pc.ls=LS_DEF_SPECIAL_BODY;
1.48 paf 1070: RC;
1.10 paf 1071: }
1072: break;
1.48 paf 1073:
1.10 paf 1074: case LS_DEF_PARAMS:
1.48 paf 1075: switch(c) {
1.192 paf 1076: case '$': // common error
1.193 paf 1077: result=BAD_METHOD_PARAMETER_NAME_CHARACTER;
1078: goto break2;
1.48 paf 1079: case ';':
1080: RC;
1081: case ']':
1.206 paf 1082: pc.ls=*pc.source=='['?LS_DEF_LOCALS:LS_DEF_COMMENT;
1.48 paf 1083: RC;
1.49 paf 1084: case '\n': // wrong. bailing out
1.206 paf 1085: pop_LS(pc);
1.48 paf 1086: RC;
1.10 paf 1087: }
1088: break;
1.48 paf 1089:
1.10 paf 1090: case LS_DEF_LOCALS:
1.48 paf 1091: switch(c) {
1092: case '[':
1093: case ';':
1094: RC;
1095: case ']':
1.206 paf 1096: pc.ls=LS_DEF_COMMENT;
1.48 paf 1097: RC;
1098: case '\n': // wrong. bailing out
1.206 paf 1099: pop_LS(pc);
1.48 paf 1100: RC;
1.10 paf 1101: }
1102: break;
1.48 paf 1103:
1.10 paf 1104: case LS_DEF_COMMENT:
1105: if(c=='\n') {
1.206 paf 1106: pop_LS(pc);
1.48 paf 1107: RC;
1.37 paf 1108: }
1109: break;
1110:
1.48 paf 1111: case LS_DEF_SPECIAL_BODY:
1.175 paf 1112: if(c=='\n')
1.48 paf 1113: RC;
1114: break;
1115:
1116: // (EXPRESSION)
1.69 paf 1117: case LS_VAR_ROUND:
1118: case LS_METHOD_ROUND:
1.48 paf 1119: switch(c) {
1120: case ')':
1.270 moko 1121: if(--lexical_brackets_nestage==0) {
1.206 paf 1122: if(pc.ls==LS_METHOD_ROUND) // method round param ended
1123: pc.ls=LS_METHOD_AFTER; // look for method end
1124: else // pc.ls==LS_VAR_ROUND // variable constructor ended
1125: pop_LS(pc); // return to normal life
1.270 moko 1126: }
1.48 paf 1127: RC;
1.194 paf 1128: case '#': // comment start skipping
1129: if(end!=begin) {
1.206 paf 1130: if(!pc.string_start)
1131: pc.string_start=begin_pos;
1.194 paf 1132: // append piece till #
1.206 paf 1133: pc.string.append_strdup_know_length(begin, end-begin);
1.194 paf 1134: }
1135: // fall into COMMENT lexical state [wait for \n]
1.206 paf 1136: push_LS(pc, LS_EXPRESSION_COMMENT);
1.194 paf 1137: lexical_brackets_nestage=1;
1138: continue;
1.48 paf 1139: case '$':
1.206 paf 1140: push_LS(pc, LS_EXPRESSION_VAR_NAME_WITH_COLON);
1.48 paf 1141: RC;
1142: case '^':
1.206 paf 1143: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1144: RC;
1145: case '(':
1146: lexical_brackets_nestage++;
1147: RC;
1.67 paf 1148: case '-':
1.206 paf 1149: switch(*pc.source) {
1.127 paf 1150: case 'f': // -f
1.67 paf 1151: skip_analized=1;
1152: result=FEXISTS;
1.127 paf 1153: goto break2;
1154: case 'd': // -d
1155: skip_analized=1;
1156: result=DEXISTS;
1157: goto break2;
1.191 paf 1158: default: // minus
1.67 paf 1159: result=c;
1.127 paf 1160: goto break2;
1161: }
1.67 paf 1162: goto break2;
1.173 paf 1163: case '+': case '*': case '/': case '%': case '\\':
1.58 paf 1164: case '~':
1.48 paf 1165: case ';':
1166: RC;
1.193 paf 1167: case '&': case '|':
1.206 paf 1168: if(*pc.source==c) { // && ||
1.193 paf 1169: result=c=='&'?LAND:LOR;
1.67 paf 1170: skip_analized=1;
1.58 paf 1171: } else
1172: result=c;
1173: goto break2;
1.193 paf 1174: case '!':
1.206 paf 1175: switch(pc.source[0]) {
1.193 paf 1176: case '|': // !| !||
1177: skip_analized=1;
1.206 paf 1178: if(pc.source[1]=='|') {
1.193 paf 1179: skip_analized++;
1180: result=LXOR;
1181: } else
1182: result=NXOR;
1183: goto break2;
1184: case '=': // !=
1185: skip_analized=1;
1186: result=NNE;
1187: goto break2;
1188: }
1189: RC;
1.195 paf 1190:
1191: case '<': // <<, <=, <
1.206 paf 1192: switch(*pc.source) {
1.195 paf 1193: case '<': // <[<]
1194: skip_analized=1; result=NSL; break;
1195: case '=': // <[=]
1196: skip_analized=1; result=NLE; break;
1197: default: // <[]
1198: result=c; break;
1199: }
1200: goto break2;
1201: case '>': // >>, >=, >
1.206 paf 1202: switch(*pc.source) {
1.195 paf 1203: case '>': // >[>]
1204: skip_analized=1; result=NSR; break;
1205: case '=': // >[=]
1206: skip_analized=1; result=NGE; break;
1207: default: // >[]
1208: result=c; break;
1209: }
1210: goto break2;
1211: case '=': // ==
1.206 paf 1212: switch(*pc.source) {
1.195 paf 1213: case '=': // =[=]
1214: skip_analized=1; result=NEQ; break;
1215: default: // =[]
1216: result=c; break; // not used now
1217: }
1.58 paf 1218: goto break2;
1.195 paf 1219:
1.48 paf 1220: case '"':
1.206 paf 1221: push_LS(pc, LS_EXPRESSION_STRING_QUOTED);
1.145 parser 1222: RC;
1223: case '\'':
1.206 paf 1224: push_LS(pc, LS_EXPRESSION_STRING_APOSTROFED);
1.48 paf 1225: RC;
1.50 paf 1226: case 'l': case 'g': case 'e': case 'n':
1.51 paf 1227: if(end==begin) // right after whitespace
1.206 paf 1228: if(isspace(pc.source[1])) {
1229: switch(*pc.source) {
1.117 paf 1230: // case '?': // ok [and bad cases, yacc would bark at them]
1231: case 't': // lt gt [et nt]
1232: result=c=='l'?SLT:c=='g'?SGT:BAD_STRING_COMPARISON_OPERATOR;
1233: skip_analized=1;
1234: goto break2;
1235: case 'e': // le ge ne [ee]
1236: result=c=='l'?SLE:c=='g'?SGE:c=='n'?SNE:BAD_STRING_COMPARISON_OPERATOR;
1237: skip_analized=1;
1238: goto break2;
1239: case 'q': // eq [lq gq nq]
1240: result=c=='e'?SEQ:BAD_STRING_COMPARISON_OPERATOR;
1241: skip_analized=1;
1242: goto break2;
1243: }
1.67 paf 1244: }
1245: break;
1246: case 'i':
1247: if(end==begin) // right after whitespace
1.206 paf 1248: if(isspace(pc.source[1])) {
1249: switch(pc.source[0]) {
1.117 paf 1250: case 'n': // in
1.95 paf 1251: skip_analized=1;
1252: result=IN;
1253: goto break2;
1.117 paf 1254: case 's': // is
1.95 paf 1255: skip_analized=1;
1256: result=IS;
1257: goto break2;
1258: }
1.67 paf 1259: }
1260: break;
1261: case 'd':
1262: if(end==begin) // right after whitespace
1.206 paf 1263: if(pc.source[0]=='e' && pc.source[1]=='f') { // def
1.225 misha 1264: switch(pc.source[2]){
1265: case ' ': case '\t': case '\n': case '"': case '\'': case '^': case '$': // non-quoted string without whitespace after 'def' is not allowed
1266: skip_analized=2;
1267: result=DEF;
1268: goto break2;
1269: }
1270: // error: incorrect char after 'def'
1.50 paf 1271: }
1.48 paf 1272: break;
1.216 paf 1273: case 't':
1274: if(end==begin) // right after whitespace
1.225 misha 1275: if(pc.source[0]=='r' && pc.source[1]=='u' && pc.source[2]=='e') { // true
1.216 paf 1276: skip_analized=3;
1277: result=LITERAL_TRUE;
1278: goto break2;
1279: }
1280: break;
1281: case 'f':
1282: if(end==begin) // right after whitespace
1.225 misha 1283: if(pc.source[0]=='a' && pc.source[1]=='l' && pc.source[2]=='s' && pc.source[3]=='e') { // false
1.216 paf 1284: skip_analized=4;
1285: result=LITERAL_FALSE;
1286: goto break2;
1287: }
1288: break;
1.48 paf 1289: case ' ': case '\t': case '\n':
1.63 paf 1290: if(end!=begin) { // there were a string after previous operator?
1291: result=0; // return that string
1292: goto break2;
1.48 paf 1293: }
1.63 paf 1294: // that's a leading|traling space or after-operator-space
1295: // ignoring it
1296: // reset piece 'begin' position & line
1.206 paf 1297: begin=pc.source; // after whitespace char
1298: begin_pos=pc.pos;
1.48 paf 1299: continue;
1.1 paf 1300: }
1301: break;
1.194 paf 1302: case LS_EXPRESSION_COMMENT:
1303: if(c=='(')
1304: lexical_brackets_nestage++;
1305:
1.206 paf 1306: switch(*pc.source) {
1.194 paf 1307: case '\n': case ')':
1.206 paf 1308: if(*pc.source==')')
1.194 paf 1309: if(--lexical_brackets_nestage!=0)
1310: continue;
1311:
1312: // skip comment
1.206 paf 1313: begin=pc.source;
1314: begin_pos=pc.pos;
1.194 paf 1315:
1.206 paf 1316: pop_LS(pc);
1.194 paf 1317: continue;
1318: }
1319: break;
1.1 paf 1320:
1.10 paf 1321: // VARIABLE GET/PUT/WITH
1.166 parser 1322: case LS_VAR_NAME_SIMPLE_WITH_COLON:
1323: case LS_VAR_NAME_SIMPLE_WITHOUT_COLON:
1324: case LS_EXPRESSION_VAR_NAME_WITH_COLON:
1325: case LS_EXPRESSION_VAR_NAME_WITHOUT_COLON:
1326: if(
1.206 paf 1327: pc.ls==LS_EXPRESSION_VAR_NAME_WITH_COLON ||
1328: pc.ls==LS_EXPRESSION_VAR_NAME_WITHOUT_COLON) {
1.181 paf 1329: // name in expr ends also before
1.48 paf 1330: switch(c) {
1.181 paf 1331: // expression minus
1.92 paf 1332: case '-':
1.181 paf 1333: // expression integer division
1334: case '\\':
1.206 paf 1335: pop_LS(pc);
1336: pc.ungetc();
1.48 paf 1337: result=EON;
1338: goto break2;
1339: }
1340: }
1.166 parser 1341: if(
1.206 paf 1342: pc.ls==LS_VAR_NAME_SIMPLE_WITHOUT_COLON ||
1343: pc.ls==LS_EXPRESSION_VAR_NAME_WITHOUT_COLON) {
1.142 parser 1344: // name already has ':', stop before next
1345: switch(c) {
1346: case ':':
1.206 paf 1347: pop_LS(pc);
1348: pc.ungetc();
1.142 parser 1349: result=EON;
1350: goto break2;
1351: }
1352: }
1.48 paf 1353: switch(c) {
1354: case 0:
1355: case ' ': case '\t': case '\n':
1356: case ';':
1.126 paf 1357: case ']': case '}': case ')':
1358: case '"': case '\'':
1.139 parser 1359: case '<': case '>': // these stand for HTML brackets AND expression binary ops
1.253 misha 1360: case '+': case '*': case '/': case '\\': case '%':
1.92 paf 1361: case '&': case '|':
1362: case '=': case '!':
1.99 paf 1363: // common delimiters
1.190 paf 1364: case ',': case '?': case '#':
1.220 paf 1365: // mysql column separators
1366: case '`':
1.139 parser 1367: // before call
1368: case '^':
1.206 paf 1369: pop_LS(pc);
1370: pc.ungetc();
1.13 paf 1371: result=EON;
1.1 paf 1372: goto break2;
1.48 paf 1373: case '[':
1.162 parser 1374: // $name.<[>code]
1.206 paf 1375: if(pc.pos.col>1/*not first column*/ && (
1.163 parser 1376: end[-1]=='$'/*was start of get*/ ||
1377: end[-1]==':'/*was class name delim */ ||
1378: end[-1]=='.'/*was name delim */
1.162 parser 1379: )) {
1.206 paf 1380: push_LS(pc, LS_NAME_SQUARE_PART);
1.162 parser 1381: lexical_brackets_nestage=1;
1382: RC;
1383: }
1.206 paf 1384: pc.ls=LS_VAR_SQUARE;
1.1 paf 1385: lexical_brackets_nestage=1;
1.48 paf 1386: RC;
1387: case '{':
1388: if(begin==end) { // ${name}, no need of EON, switching LS
1.206 paf 1389: pc.ls=LS_VAR_NAME_CURLY;
1.48 paf 1390: } else {
1.206 paf 1391: pc.ls=LS_VAR_CURLY;
1.48 paf 1392: lexical_brackets_nestage=1;
1393: }
1.69 paf 1394:
1.48 paf 1395: RC;
1396: case '(':
1.206 paf 1397: pc.ls=LS_VAR_ROUND;
1.1 paf 1398: lexical_brackets_nestage=1;
1.48 paf 1399: RC;
1400: case '.': // name part delim
1401: case '$': // name part subvar
1.160 parser 1402: case ':': // class<:>name
1.166 parser 1403: // go to _WITHOUT_COLON state variant...
1.206 paf 1404: if(pc.ls==LS_VAR_NAME_SIMPLE_WITH_COLON)
1405: pc.ls=LS_VAR_NAME_SIMPLE_WITHOUT_COLON;
1406: else if(pc.ls==LS_EXPRESSION_VAR_NAME_WITH_COLON)
1407: pc.ls=LS_EXPRESSION_VAR_NAME_WITHOUT_COLON;
1.166 parser 1408: // ...stop before next ':'
1.48 paf 1409: RC;
1.1 paf 1410: }
1411: break;
1.48 paf 1412:
1.1 paf 1413: case LS_VAR_NAME_CURLY:
1.48 paf 1414: switch(c) {
1.162 parser 1415: case '[':
1.166 parser 1416: // ${name.<[>code]}
1.206 paf 1417: push_LS(pc, LS_NAME_SQUARE_PART);
1.160 parser 1418: lexical_brackets_nestage=1;
1419: RC;
1.48 paf 1420: case '}': // ${name} finished, restoring LS
1.206 paf 1421: pop_LS(pc);
1.48 paf 1422: RC;
1423: case '.': // name part delim
1424: case '$': // name part subvar
1425: case ':': // ':name' or 'class:name'
1426: RC;
1.1 paf 1427: }
1428: break;
1.48 paf 1429:
1430: case LS_VAR_SQUARE:
1431: switch(c) {
1432: case '$':
1.206 paf 1433: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1434: RC;
1435: case '^':
1.206 paf 1436: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1437: RC;
1438: case ']':
1.1 paf 1439: if(--lexical_brackets_nestage==0) {
1.206 paf 1440: pop_LS(pc);
1.48 paf 1441: RC;
1.1 paf 1442: }
1.48 paf 1443: break;
1444: case ';': // operator_or_fmt;value delim
1445: RC;
1446: case '[':
1447: lexical_brackets_nestage++;
1448: break;
1.1 paf 1449: }
1450: break;
1.48 paf 1451:
1.1 paf 1452: case LS_VAR_CURLY:
1.48 paf 1453: switch(c) {
1454: case '$':
1.206 paf 1455: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1456: RC;
1457: case '^':
1.206 paf 1458: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1459: RC;
1460: case '}':
1.1 paf 1461: if(--lexical_brackets_nestage==0) {
1.206 paf 1462: pop_LS(pc);
1.48 paf 1463: RC;
1.1 paf 1464: }
1.48 paf 1465: break;
1466: case '{':
1.1 paf 1467: lexical_brackets_nestage++;
1.48 paf 1468: break;
1469: }
1.1 paf 1470: break;
1471:
1.10 paf 1472: // METHOD CALL
1.1 paf 1473: case LS_METHOD_NAME:
1.48 paf 1474: switch(c) {
1475: case '[':
1.166 parser 1476: // ^name.<[>code].xxx
1.206 paf 1477: if(pc.pos.col>1/*not first column*/ && (
1.163 parser 1478: end[-1]=='^'/*was start of call*/ || // never, ^[ is literal...
1479: end[-1]==':'/*was class name delim */ ||
1480: end[-1]=='.'/*was name delim */
1.162 parser 1481: )) {
1.206 paf 1482: push_LS(pc, LS_NAME_SQUARE_PART);
1.162 parser 1483: lexical_brackets_nestage=1;
1484: RC;
1485: }
1.206 paf 1486: pc.ls=LS_METHOD_SQUARE;
1.1 paf 1487: lexical_brackets_nestage=1;
1.48 paf 1488: RC;
1489: case '{':
1.206 paf 1490: pc.ls=LS_METHOD_CURLY;
1.1 paf 1491: lexical_brackets_nestage=1;
1.48 paf 1492: RC;
1.69 paf 1493: case '(':
1.206 paf 1494: pc.ls=LS_METHOD_ROUND;
1.69 paf 1495: lexical_brackets_nestage=1;
1496: RC;
1.48 paf 1497: case '.': // name part delim
1498: case '$': // name part subvar
1499: case ':': // ':name' or 'class:name'
1.170 parser 1500: case '^': // ^abc^xxx wrong. bailing out
1501: case ']': case '}': case ')': // ^abc]}) wrong. bailing out
1.207 paf 1502: case ' ': // ^if ( wrong. bailing out
1.48 paf 1503: RC;
1.1 paf 1504: }
1505: break;
1.48 paf 1506:
1507: case LS_METHOD_SQUARE:
1508: switch(c) {
1509: case '$':
1.206 paf 1510: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1511: RC;
1512: case '^':
1.206 paf 1513: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1514: RC;
1515: case ';': // param delim
1516: RC;
1517: case ']':
1.1 paf 1518: if(--lexical_brackets_nestage==0) {
1.206 paf 1519: pc.ls=LS_METHOD_AFTER;
1.48 paf 1520: RC;
1.1 paf 1521: }
1.48 paf 1522: break;
1523: case '[':
1.1 paf 1524: lexical_brackets_nestage++;
1.48 paf 1525: break;
1526: }
1.1 paf 1527: break;
1.48 paf 1528:
1.1 paf 1529: case LS_METHOD_CURLY:
1.48 paf 1530: switch(c) {
1531: case '$':
1.206 paf 1532: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1533: RC;
1534: case '^':
1.206 paf 1535: push_LS(pc, LS_METHOD_NAME);
1.94 paf 1536: RC;
1537: case ';': // param delim
1.48 paf 1538: RC;
1539: case '}':
1.1 paf 1540: if(--lexical_brackets_nestage==0) {
1.206 paf 1541: pc.ls=LS_METHOD_AFTER;
1.48 paf 1542: RC;
1.1 paf 1543: }
1.48 paf 1544: break;
1545: case '{':
1.1 paf 1546: lexical_brackets_nestage++;
1.48 paf 1547: break;
1548: }
1.209 paf 1549: if(pc.explicit_result && c)
1550: switch(c) {
1.276 moko 1551: default:
1552: pc.string.append(c);
1.209 paf 1553: case '\n': case ' ': case '\t':
1554: begin=pc.source;
1555: begin_pos=pc.pos;
1.276 moko 1556: continue;
1.209 paf 1557: }
1.1 paf 1558: break;
1.48 paf 1559:
1.1 paf 1560: case LS_METHOD_AFTER:
1.69 paf 1561: if(c=='[') {/* ][ }[ )[ */
1.206 paf 1562: pc.ls=LS_METHOD_SQUARE;
1.1 paf 1563: lexical_brackets_nestage=1;
1.48 paf 1564: RC;
1.281 moko 1565: }
1.69 paf 1566: if(c=='{') {/* ]{ }{ ){ */
1.206 paf 1567: pc.ls=LS_METHOD_CURLY;
1.69 paf 1568: lexical_brackets_nestage=1;
1569: RC;
1.281 moko 1570: }
1.69 paf 1571: if(c=='(') {/* ]( }( )( */
1.206 paf 1572: pc.ls=LS_METHOD_ROUND;
1.1 paf 1573: lexical_brackets_nestage=1;
1.48 paf 1574: RC;
1.281 moko 1575: }
1.206 paf 1576: pop_LS(pc);
1577: pc.ungetc();
1.13 paf 1578: result=EON;
1.1 paf 1579: goto break2;
1580: }
1.9 paf 1581: if(c==0) {
1.1 paf 1582: result=-1;
1583: break;
1584: }
1585: }
1586:
1587: break2:
1.59 paf 1588: if(end!=begin) { // there is last piece?
1.258 misha 1589: if(c=='@' || c==0) // we are before LS_DEF_NAME or EOF?
1590: while(end!=begin && end[-1]=='\n') // trim all empty lines before LS_DEF_NAME and EOF
1.137 parser 1591: end--;
1.206 paf 1592: if(end!=begin && pc.ls!=LS_USER_COMMENT) { // last piece still alive and not comment?
1593: if(!pc.string_start)
1594: pc.string_start=begin_pos;
1.59 paf 1595: // append it
1.206 paf 1596: pc.string.append_strdup_know_length(begin, end-begin);
1.30 paf 1597: }
1.59 paf 1598: }
1.206 paf 1599: if(!pc.string.is_empty()) { // something accumulated?
1600: // create STRING value: array of OP_VALUE+origin+vstring
1.278 moko 1601: #ifdef SYMBOLS_CACHING
1602: Value *lookup=symbols->get(pc.string);
1603: #else
1604: Value *lookup=0;
1605: #endif
1.281 moko 1606: *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 1607: // new pieces storage
1.206 paf 1608: pc.string.clear();
1609: pc.string_start.clear();
1.58 paf 1610: // make current result be pending for next call, return STRING for now
1.206 paf 1611: pc.pending_state=result; result=STRING;
1.58 paf 1612: }
1.67 paf 1613: if(skip_analized) {
1.206 paf 1614: pc.source+=skip_analized; pc.pos.col+=skip_analized;
1.1 paf 1615: }
1.58 paf 1616: return result;
1.1 paf 1617: }
1618:
1.264 moko 1619: static int real_yyerror(Parse_control *pc, const char *s) { // Called by yyparse on error
1.281 moko 1620: strncpy(PC.error, s, MAX_STRING);
1621: return 1;
1.110 paf 1622: }
1.1 paf 1623:
1.110 paf 1624: static void yyprint(FILE *file, int type, YYSTYPE value) {
1625: if(type==STRING)
1.206 paf 1626: fprintf(file, " \"%s\"", LA2S(*value)->cstr());
1.110 paf 1627: }
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