Annotation of parser3/src/main/compile.y, revision 1.283
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:
1.283 ! moko 11: volatile const char * IDENT_COMPILE_Y = "$Id: compile.y,v 1.282 2016/07/19 16:35:35 moko Exp $";
1.262 moko 12:
1.106 paf 13: /**
14: @todo parser4:
15: - cache compiled code from request to request. to do that...
16: -#: make method definitions, @CLASS, @BASE, @USE instructions,
1.88 paf 17: which would be executed afterwards, and actions
18: now performed at compile time would be delayed to run time.
1.106 paf 19: -#: make cache expiration on time and on disk-change of class source
20: -#: in apache use subpools for compiled class storage
21: -#: in iis make up specialized Pool object for that
1.24 paf 22: */
23:
1.206 paf 24: #define YYSTYPE ArrayOperation*
1.9 paf 25: #define YYDEBUG 1
1.271 moko 26: #define YYERROR_VERBOSE 1
27: #define yyerror(pc, msg) real_yyerror(pc, msg)
1.9 paf 28: #define YYPRINT(file, type, value) yyprint(file, type, value)
1.269 moko 29: #define YYMALLOC pa_malloc
30: #define YYFREE pa_free
1.1 paf 31:
1.206 paf 32: // includes
33:
1.1 paf 34: #include "compile_tools.h"
1.8 paf 35: #include "pa_value.h"
1.12 paf 36: #include "pa_request.h"
1.39 paf 37: #include "pa_vobject.h"
1.52 paf 38: #include "pa_vdouble.h"
1.98 paf 39: #include "pa_globals.h"
1.200 paf 40: #include "pa_vmethod_frame.h"
1.39 paf 41:
1.206 paf 42: // defines
43:
1.280 moko 44: #define CLASS_NAME "CLASS"
1.97 paf 45: #define USE_CONTROL_METHOD_NAME "USE"
1.226 misha 46: #define OPTIONS_CONTROL_METHOD_NAME "OPTIONS"
1.1 paf 47:
1.206 paf 48: // forwards
49:
1.264 moko 50: static int real_yyerror(Parse_control* pc, const char* s);
1.206 paf 51: static void yyprint(FILE* file, int type, YYSTYPE value);
52: static int yylex(YYSTYPE* lvalp, void* pc);
1.1 paf 53:
1.216 paf 54: static const VBool vfalse(false);
55: static const VBool vtrue(true);
1.261 moko 56: static const VString vempty;
1.216 paf 57:
1.8 paf 58: // local convinient inplace typecast & var
1.205 paf 59: #undef PC
1.271 moko 60: #define PC (*pc)
1.206 paf 61: #undef POOL
1.114 paf 62: #define POOL (*PC.pool)
1.107 paf 63: #ifndef DOXYGEN
1.265 moko 64:
1.281 moko 65: #define CLASS_ADD if(PC.class_add()){ \
66: strncpy(PC.error, PC.cclass->type(), MAX_STRING/2); \
67: strcat(PC.error, " - class is already defined"); \
68: YYERROR; \
69: }
70:
71: #define PC_ERROR(header, value, footer){ \
72: strcpy(PC.error, header); \
73: strncat(PC.error, value, MAX_STRING/2); \
74: strcat(PC.error, footer); \
1.265 moko 75: }
76:
1.1 paf 77: %}
78:
1.271 moko 79: %pure-parser
80: %lex-param {Parse_control* pc}
81: %parse-param {Parse_control* pc}
1.1 paf 82:
1.13 paf 83: %token EON
1.4 paf 84: %token STRING
1.1 paf 85: %token BOGUS
1.55 paf 86:
1.58 paf 87: %token BAD_STRING_COMPARISON_OPERATOR
1.114 paf 88: %token BAD_HEX_LITERAL
1.171 parser 89: %token BAD_METHOD_DECL_START
1.193 paf 90: %token BAD_METHOD_PARAMETER_NAME_CHARACTER
1.58 paf 91:
1.59 paf 92: %token LAND "&&"
1.58 paf 93: %token LOR "||"
1.193 paf 94: %token LXOR "!||"
95: %token NXOR "!|"
1.58 paf 96:
97: %token NLE "<="
98: %token NGE ">="
99: %token NEQ "=="
100: %token NNE "!="
1.195 paf 101: %token NSL "<<"
102: %token NSR ">>"
1.58 paf 103:
104: %token SLT "lt"
105: %token SGT "gt"
106: %token SLE "le"
107: %token SGE "ge"
108: %token SEQ "eq"
109: %token SNE "ne"
110:
1.67 paf 111: %token DEF "def"
112: %token IN "in"
113: %token FEXISTS "-f"
1.127 paf 114: %token DEXISTS "-d"
1.95 paf 115: %token IS "is"
1.67 paf 116:
1.216 paf 117: %token LITERAL_TRUE "true"
118: %token LITERAL_FALSE "false"
119:
1.57 paf 120: /* logical */
1.193 paf 121: %left "!||"
1.57 paf 122: %left "||"
123: %left "&&"
1.131 paf 124: %left '<' '>' "<=" ">=" "lt" "gt" "le" "ge"
125: %left "==" "!=" "eq" "ne"
126: %left "is" "def" "in" "-f" "-d"
1.57 paf 127:
128: /* bitwise */
1.193 paf 129: %left "!|"
1.131 paf 130: %left '|'
131: %left '&'
1.202 paf 132: %left "<<" ">>"
1.57 paf 133:
1.56 paf 134: /* numerical */
1.202 paf 135: %left '+' '-'
136: %left '*' '/' '\\' '%'
137: %left NUNARY /* unary - + */
138:
139: /* out-of-group */
140: %left '~' /* bitwise */
141: %left '!' /* logical */
1.1 paf 142:
143: %%
1.195 paf 144: all:
1.10 paf 145: one_big_piece {
1.281 moko 146: Method* method=new Method(Method::CT_ANY, 0, 0 /*min, max numbered_params_count*/, 0 /*param_names*/, 0 /*local_names*/, $1 /*parser_code*/, 0 /*native_code*/);
1.251 misha 147: PC.cclass->set_method(PC.alias_method(main_method_name), method);
1.10 paf 148: }
149: | methods;
150:
151: methods: method | methods method;
152: one_big_piece: maybe_codes;
153:
1.34 paf 154: method: control_method | code_method;
155:
156: control_method: '@' STRING '\n'
1.132 paf 157: maybe_control_strings {
1.260 misha 158: const String& command=LA2S(*$2)->trim(String::TRIM_END);
1.34 paf 159: YYSTYPE strings_code=$4;
1.206 paf 160: if(strings_code->count()<1*OPERATIONS_PER_OPVALUE) {
1.281 moko 161: PC_ERROR("@", command.cstr(), " is empty");
1.37 paf 162: YYERROR;
163: }
1.74 paf 164: if(command==CLASS_NAME) {
1.206 paf 165: if(strings_code->count()==1*OPERATIONS_PER_OPVALUE) {
1.265 moko 166: CLASS_ADD;
1.73 paf 167: // new class' name
1.260 misha 168: const String& name=LA2S(*strings_code)->trim(String::TRIM_END);
1.73 paf 169: // creating the class
1.206 paf 170: VStateless_class* cclass=new VClass;
1.226 misha 171: PC.cclass_new=cclass;
1.275 moko 172: PC.cclass_new->set_type(name.cstr());
1.266 misha 173: PC.append=false;
1.73 paf 174: } else {
1.268 moko 175: strcpy(PC.error, "@" CLASS_NAME " must contain only one line with class name (contains more then one)");
1.34 paf 176: YYERROR;
177: }
1.130 paf 178: } else if(command==USE_CONTROL_METHOD_NAME) {
1.265 moko 179: CLASS_ADD;
1.273 moko 180: for(size_t i=0; i<strings_code->count(); i+=OPERATIONS_PER_OPVALUE){
181: PC.request.use_file(PC.request.main_class, LA2S(*strings_code, i)->trim(String::TRIM_END),
182: PC.request.get_used_filename(PC.file_no), strings_code->get(i+1).origin);
183: }
1.130 paf 184: } else if(command==BASE_NAME) {
1.226 misha 185: if(PC.append){
1.281 moko 186: PC_ERROR("can't set base while appending methods to class '", PC.cclass->type(), "'");
1.226 misha 187: YYERROR;
188: }
1.265 moko 189: CLASS_ADD;
1.188 paf 190: if(PC.cclass->base_class()) { // already changed from default?
1.281 moko 191: PC_ERROR("class already have a base '", PC.cclass->base_class()->type(), "'");
1.130 paf 192: YYERROR;
193: }
1.206 paf 194: if(strings_code->count()==1*OPERATIONS_PER_OPVALUE) {
1.260 misha 195: const String& base_name=LA2S(*strings_code)->trim(String::TRIM_END);
1.283 ! 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;
1.223 misha 264: bool all_vars_local=false;
1.206 paf 265: if(int size=locals_names_code->count()) {
266: locals_names=new ArrayString;
1.208 paf 267: for(int i=0; i<size; i+=OPERATIONS_PER_OPVALUE) {
268: const String* local_name=LA2S(*locals_names_code, i);
1.279 moko 269: if(SYMBOLS_EQ(*local_name,RESULT_SYMBOL))
1.208 paf 270: PC.explicit_result=true;
1.279 moko 271: else if(SYMBOLS_EQ(*local_name,LOCALS_SYMBOL))
1.223 misha 272: all_vars_local=true;
1.208 paf 273: else
274: *locals_names+=local_name;
275: }
1.75 paf 276: }
1.231 misha 277: if(!all_vars_local && PC.cclass && PC.cclass->is_vars_local())
1.223 misha 278: all_vars_local=true;
1.10 paf 279:
1.208 paf 280: Method* method=new Method(
1.206 paf 281: //name,
1.257 misha 282: GetMethodCallType(PC, *$2),
1.81 paf 283: 0, 0/*min,max numbered_params_count*/,
1.76 paf 284: params_names, locals_names,
1.223 misha 285: 0/*to be filled later in next {} */, 0, all_vars_local);
1.221 misha 286:
1.208 paf 287: *reinterpret_cast<Method**>(&$$)=method;
1.222 misha 288: } maybe_codes {
1.251 misha 289: Method* method=reinterpret_cast<Method*>($7);
1.231 misha 290: // fill in the code
1.251 misha 291: method->parser_code=$8;
1.231 misha 292:
293: // register in class
294: const String& name=*LA2S(*$2);
1.251 misha 295: PC.cclass->set_method(PC.alias_method(name), method);
1.8 paf 296: };
1.10 paf 297:
298: maybe_bracketed_strings: empty | bracketed_maybe_strings;
1.259 misha 299: bracketed_maybe_strings: '[' maybe_strings ']' {$$=$2;};
1.10 paf 300: maybe_strings: empty | strings;
1.259 misha 301: strings: STRING | strings ';' STRING { $$=$1; P(*$$, *$3); };
1.10 paf 302:
303: maybe_comment: empty | STRING;
1.1 paf 304:
305: /* codes */
306:
1.10 paf 307: maybe_codes: empty | codes;
308:
1.259 misha 309: codes: code | codes code { $$=$1; P(*$$, *$2); };
1.81 paf 310: code: write_string | action;
1.209 paf 311: action: get | put | call;
1.1 paf 312:
313: /* get */
314:
1.64 paf 315: get: get_value {
1.238 misha 316: $$=N();
317: YYSTYPE code=$1;
1.247 misha 318: size_t count=code->count();
1.245 misha 319:
1.235 misha 320: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
1.281 moko 321: if(count!=3 || !change_first(*code, OP::OP_VALUE__GET_ELEMENT, /*=>*/OP::OP_VALUE__GET_ELEMENT__WRITE) )
1.238 misha 322: #endif
1.247 misha 323:
1.245 misha 324: #ifdef OPTIMIZE_BYTECODE_GET_SELF_ELEMENT
1.281 moko 325: if(count!=3 || !change_first(*code, OP::OP_WITH_SELF__VALUE__GET_ELEMENT, /*=>*/OP::OP_WITH_SELF__VALUE__GET_ELEMENT__WRITE) )
1.245 misha 326: #endif
327:
1.239 misha 328: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_ELEMENT
1.281 moko 329: if(count!=5 || !change_first(*code, OP::OP_GET_OBJECT_ELEMENT, /*=>*/OP::OP_GET_OBJECT_ELEMENT__WRITE) )
1.239 misha 330: #endif
331:
332: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_VAR_ELEMENT
1.281 moko 333: if(count!=5 || !change_first(*code, OP::OP_GET_OBJECT_VAR_ELEMENT, /*=>*/OP::OP_GET_OBJECT_VAR_ELEMENT__WRITE) )
1.238 misha 334: #endif
1.267 misha 335:
336: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT__SPECIAL
1.281 moko 337: if(!change(*code, count-1/* last */, OP::OP_GET_ELEMENT__SPECIAL, /*=>*/OP::OP_GET_ELEMENT__SPECIAL__WRITE) )
1.267 misha 338: #endif
339:
1.247 misha 340: {
1.281 moko 341: change_or_append(*code, count-1 /* last */, OP::OP_GET_ELEMENT, /*=>*/OP::OP_GET_ELEMENT__WRITE, /*or */OP::OP_WRITE_VALUE ); /* value=pop; wcontext.write(value) */
1.246 misha 342: }
1.247 misha 343:
1.238 misha 344: P(*$$, *code);
1.1 paf 345: };
1.259 misha 346: get_value: '$' get_name_value { $$=$2; };
1.64 paf 347: get_name_value: name_without_curly_rdive EON | name_in_curly_rdive;
1.259 misha 348: name_in_curly_rdive: '{' name_without_curly_rdive '}' { $$=$2; };
1.44 paf 349: name_without_curly_rdive:
350: name_without_curly_rdive_read
351: | name_without_curly_rdive_class;
1.19 paf 352: name_without_curly_rdive_read: name_without_curly_rdive_code {
1.206 paf 353: $$=N();
1.238 misha 354: YYSTYPE diving_code=$1;
1.239 misha 355: size_t count=diving_code->count();
1.247 misha 356:
357: if(maybe_make_self(*$$, *diving_code, count)) {
358: // $self.
359: } else
1.239 misha 360:
361: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_ELEMENT
1.247 misha 362: if(maybe_make_get_object_element(*$$, *diving_code, count)){
1.245 misha 363: // optimization for $object.field + ^object.method[
1.247 misha 364: } else
1.238 misha 365: #endif
1.239 misha 366:
367: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_VAR_ELEMENT
1.247 misha 368: if(maybe_make_get_object_var_element(*$$, *diving_code, count)){
1.245 misha 369: // optimization for $object.$var
1.247 misha 370: } else
1.238 misha 371: #endif
1.239 misha 372:
373: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
1.281 moko 374: if(count>=4 && (*diving_code)[0].code==OP::OP_VALUE && (*diving_code)[3].code==OP::OP_GET_ELEMENT ){
1.248 misha 375: // optimization
1.239 misha 376: O(*$$,
1.247 misha 377: (PC.in_call_value && count==4)
1.239 misha 378: ? OP::OP_VALUE__GET_ELEMENT_OR_OPERATOR // ^object[ : OP_VALUE+origin+string+OP_GET_ELEMENT => OP_VALUE__GET_ELEMENT_OR_OPERATOR+origin+string
379: : OP::OP_VALUE__GET_ELEMENT // $object : OP_VALUE+origin+string+OP_GET_ELEMENT => OP_VALUE__GET_ELEMENT+origin+string
380: );
381: P(*$$, *diving_code, 1/*offset*/, 2/*limit*/); // copy origin+value
1.247 misha 382: if(count>4)
383: P(*$$, *diving_code, 4); // copy tail
1.239 misha 384: } else {
385: O(*$$, OP::OP_WITH_READ); /* stack: starting context */
386: P(*$$, *diving_code);
387: }
1.233 misha 388: #else
1.247 misha 389: {
1.238 misha 390: O(*$$, OP::OP_WITH_READ); /* stack: starting context */
1.179 paf 391:
1.238 misha 392: // ^if OP_ELEMENT => ^if OP_ELEMENT_OR_OPERATOR
393: // optimized OP_VALUE+origin+string+OP_GET_ELEMENT. => OP_VALUE+origin+string+OP_GET_ELEMENT_OR_OPERATOR.
1.239 misha 394: if(PC.in_call_value && count==4)
395: diving_code->put(count-1, OP::OP_GET_ELEMENT_OR_OPERATOR);
1.206 paf 396: P(*$$, *diving_code);
1.239 misha 397: }
1.233 misha 398: #endif
1.22 paf 399: /* diving code; stack: current context */
1.1 paf 400: };
1.259 misha 401: name_without_curly_rdive_class: class_prefix name_without_curly_rdive_code { $$=$1; P(*$$, *$2); };
402: name_without_curly_rdive_code: name_advance2 | name_path name_advance2 { $$=$1; P(*$$, *$2); };
1.1 paf 403:
404: /* put */
405:
1.81 paf 406: put: '$' name_expr_wdive construct {
1.241 misha 407: $$=N();
1.244 misha 408: #ifdef OPTIMIZE_BYTECODE_CONSTRUCT
409: if(maybe_optimize_construct(*$$, *$2, *$3)){
1.246 misha 410: // $a(expr), $.a(expr), $a[value], $.a[value], $self.a[value], $self.a(expr)
1.241 misha 411: } else
412: #endif
413: {
414: P(*$$, *$2); /* stack: context,name */
415: P(*$$, *$3); /* stack: context,name,constructor_value */
416: }
1.20 paf 417: };
1.44 paf 418: name_expr_wdive:
1.157 parser 419: name_expr_wdive_root
420: | name_expr_wdive_write
1.44 paf 421: | name_expr_wdive_class;
1.157 parser 422: name_expr_wdive_root: name_expr_dive_code {
1.206 paf 423: $$=N();
1.238 misha 424: YYSTYPE diving_code=$1;
1.247 misha 425: size_t count=diving_code->count();
426:
427: if(maybe_make_self(*$$, *diving_code, count)) {
428: // $self.
429: } else
430: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
1.281 moko 431: if(count>=4 && (*diving_code)[0].code==OP::OP_VALUE && (*diving_code)[3].code==OP::OP_GET_ELEMENT ){
1.247 misha 432: O(*$$, OP::OP_WITH_ROOT__VALUE__GET_ELEMENT);
433: P(*$$, *diving_code, 1/*offset*/, 2/*limit*/); // copy origin+value
434: if(count>4)
435: P(*$$, *diving_code, 4); // tail
436: } else
437: #endif
438: {
1.229 misha 439: O(*$$, OP::OP_WITH_ROOT); /* stack: starting context */
1.206 paf 440: P(*$$, *diving_code);
1.23 paf 441: }
442: /* diving code; stack: current context */
1.156 parser 443: };
1.157 parser 444: name_expr_wdive_write: '.' name_expr_dive_code {
1.206 paf 445: $$=N();
1.229 misha 446: O(*$$, OP::OP_WITH_WRITE); /* stack: starting context */
1.206 paf 447: P(*$$, *$2); /* diving code; stack: context,name */
1.20 paf 448: };
1.259 misha 449: name_expr_wdive_class: class_prefix name_expr_dive_code { $$=$1; P(*$$, *$2); };
1.20 paf 450:
1.244 misha 451: construct:
1.163 parser 452: construct_square
453: | construct_round
454: | construct_curly
1.149 parser 455: ;
1.211 paf 456: construct_square: '[' {
457: // allow $result_or_other_variable[ letters here any time ]
458: *reinterpret_cast<bool*>(&$$)=PC.explicit_result; PC.explicit_result=false;
459: } any_constructor_code_value {
1.213 paf 460: PC.explicit_result=*reinterpret_cast<bool*>(&$2);
1.211 paf 461: } ']' {
1.149 parser 462: // stack: context, name
1.211 paf 463: $$=$3; // stack: context, name, value
1.229 misha 464: O(*$$, OP::OP_CONSTRUCT_VALUE); /* value=pop; name=pop; context=pop; construct(context,name,value) */
1.81 paf 465: }
466: ;
1.149 parser 467: construct_round: '(' expr_value ')' {
1.206 paf 468: $$=N();
1.229 misha 469: O(*$$, OP::OP_PREPARE_TO_EXPRESSION);
1.149 parser 470: // stack: context, name
1.206 paf 471: P(*$$, *$2); // stack: context, name, value
1.229 misha 472: O(*$$, OP::OP_CONSTRUCT_EXPR); /* value=pop->as_expr_result; name=pop; context=pop; construct(context,name,value) */
1.81 paf 473: }
1.52 paf 474: ;
1.149 parser 475: construct_curly: '{' maybe_codes '}' {
476: // stack: context, name
1.206 paf 477: $$=N();
1.229 misha 478: OA(*$$, OP::OP_CURLY_CODE__CONSTRUCT, $2); /* code=pop; name=pop; context=pop; construct(context,name,junction(code)) */
1.149 parser 479: };
480:
1.55 paf 481: any_constructor_code_value:
1.261 moko 482: empty_value /* optimized $var[] case */
1.52 paf 483: | STRING /* optimized $var[STRING] case */
1.55 paf 484: | constructor_code_value /* $var[something complex] */
1.1 paf 485: ;
1.55 paf 486: constructor_code_value: constructor_code {
1.206 paf 487: $$=N();
1.229 misha 488: OA(*$$, OP::OP_OBJECT_POOL, $1); /* stack: empty write context */
1.183 paf 489: /* some code that writes to that context */
490: /* context=pop; stack: context.value() */
1.1 paf 491: };
1.55 paf 492: constructor_code: codes__excluding_sole_str_literal;
1.259 misha 493: codes__excluding_sole_str_literal: action | code codes { $$=$1; P(*$$, *$2); };
1.27 paf 494:
1.1 paf 495: /* call */
496:
1.66 paf 497: call: call_value {
1.267 misha 498: size_t count=$1->count();
1.238 misha 499: #ifdef OPTIMIZE_BYTECODE_CUT_REM_OPERATOR
1.267 misha 500: if(count)
1.238 misha 501: #endif
502: {
503: $$=$1; /* stack: value */
1.281 moko 504: if(!change_first(*$$, OP::OP_CONSTRUCT_OBJECT, /*=>*/ OP::OP_CONSTRUCT_OBJECT__WRITE))
505: change_or_append(*$$, count-2 /* second last */, OP::OP_CALL, /*=>*/ OP::OP_CALL__WRITE, /*or */ OP::OP_WRITE_VALUE); /* value=pop; wcontext.write(value) */
1.238 misha 506: }
1.66 paf 507: };
1.177 paf 508: call_value: '^' {
1.281 moko 509: PC.in_call_value=true;
510: }
511: call_name {
512: PC.in_call_value=false;
513: }
514: store_params EON { /* ^field.$method{vasya} */
1.238 misha 515: #ifdef OPTIMIZE_BYTECODE_CUT_REM_OPERATOR
1.242 misha 516: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
1.238 misha 517: const String* operator_name=LA2S(*$3, 0, OP::OP_VALUE__GET_ELEMENT_OR_OPERATOR);
1.242 misha 518: #else
519: const String* operator_name=LA2S(*$3, 1);
520: #endif
1.279 moko 521: if(operator_name && SYMBOLS_EQ(*operator_name,REM_SYMBOL)){
1.238 misha 522: $$=N();
523: } else
524: #endif
525: {
526: YYSTYPE params_code=$5;
527: if(params_code->count()==3) { // probably [] case. [OP::OP_VALUE+origin+Void]
528: if(Value* value=LA2V(*params_code)) // it is OP_VALUE+origin+value?
1.261 moko 529: if(const String * string=value->get_string())
530: if(string->is_empty()) // value is empty string?
531: params_code=0; // ^zzz[] case. don't append lone empty param.
1.238 misha 532: }
533: /* stack: context, method_junction */
1.249 misha 534:
535: YYSTYPE var_code=$3;
536: if(
537: var_code->count()==8
1.282 moko 538: && ( (*var_code)[0].code==OP::OP_VALUE__GET_CLASS || (*var_code)[0].code==OP::OP_VALUE__GET_BASE_CLASS )
1.249 misha 539: && (*var_code)[3].code==OP::OP_PREPARE_TO_CONSTRUCT_OBJECT
540: && (*var_code)[4].code==OP::OP_VALUE
1.272 moko 541: #ifdef FEATURE_GET_ELEMENT4CALL
542: && (*var_code)[7].code==OP::OP_GET_ELEMENT4CALL
543: #else
1.249 misha 544: && (*var_code)[7].code==OP::OP_GET_ELEMENT
1.272 moko 545: #endif
1.249 misha 546: ){
1.267 misha 547: $$=N();
1.249 misha 548: O(*$$, OP::OP_CONSTRUCT_OBJECT);
549: P(*$$, *var_code, 1/*offset*/, 2/*limit*/); // class name
550: P(*$$, *var_code, 5/*offset*/, 2/*limit*/); // constructor name
551: OA(*$$, params_code);
552: } else
553: {
554: $$=var_code; /* with_xxx,diving code; stack: context,method_junction */
555: OA(*$$, OP::OP_CALL, params_code); // method_frame=make frame(pop junction); ncontext=pop; call(ncontext,method_frame) stack: value
556: }
1.238 misha 557: }
1.1 paf 558: };
559:
1.272 moko 560: call_name: name_without_curly_rdive {
561: #ifdef FEATURE_GET_ELEMENT4CALL
562: size_t count=$1->count();
563: if(count){
564: $$=$1;
565: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_ELEMENT
566: !(count==5 && change_first(*$$, OP::OP_GET_OBJECT_ELEMENT, OP::OP_GET_OBJECT_ELEMENT4CALL)) &&
567: #endif
568: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_VAR_ELEMENT
569: !(count==5 && change_first(*$$, OP::OP_GET_OBJECT_VAR_ELEMENT, OP::OP_GET_OBJECT_VAR_ELEMENT4CALL)) &&
570: #endif
571: !change(*$$, count-1, OP::OP_GET_ELEMENT, OP::OP_GET_ELEMENT4CALL);
572: }
573: #endif
574: };
1.38 paf 575:
1.259 misha 576: store_params: store_param | store_params store_param { $$=$1; P(*$$, *$2); };
1.69 paf 577: store_param:
578: store_square_param
579: | store_round_param
580: | store_curly_param
1.31 paf 581: ;
1.210 paf 582: store_square_param: '[' {
1.211 paf 583: // allow ^call[ letters here any time ]
1.210 paf 584: *reinterpret_cast<bool*>(&$$)=PC.explicit_result; PC.explicit_result=false;
585: } store_code_param_parts {
1.213 paf 586: PC.explicit_result=*reinterpret_cast<bool*>(&$2);
1.259 misha 587: } ']' {$$=$3;};
588: store_round_param: '(' store_expr_param_parts ')' {$$=$2;};
589: store_curly_param: '{' store_curly_param_parts '}' {$$=$2;};
1.69 paf 590: store_code_param_parts:
591: store_code_param_part
1.259 misha 592: | store_code_param_parts ';' store_code_param_part { $$=$1; P(*$$, *$3); }
1.69 paf 593: ;
594: store_expr_param_parts:
595: store_expr_param_part
1.259 misha 596: | store_expr_param_parts ';' store_expr_param_part { $$=$1; P(*$$, *$3); }
1.69 paf 597: ;
1.94 paf 598: store_curly_param_parts:
599: store_curly_param_part
1.259 misha 600: | store_curly_param_parts ';' store_curly_param_part { $$=$1; P(*$$, *$3); }
1.94 paf 601: ;
1.120 paf 602: store_code_param_part: code_param_value {
1.32 paf 603: $$=$1;
1.120 paf 604: };
1.214 paf 605: store_expr_param_part: expr_value {
606: YYSTYPE expr_code=$1;
1.215 paf 607: if(expr_code->count()==3
1.234 misha 608: && (*expr_code)[0].code==OP::OP_VALUE) { // optimizing (double/bool/incidently 'string' too) case. [OP::OP_VALUE+origin+Double]. no evaluating
1.214 paf 609: $$=expr_code;
610: } else {
1.238 misha 611: YYSTYPE code=N();
1.229 misha 612: O(*code, OP::OP_PREPARE_TO_EXPRESSION);
1.214 paf 613: P(*code, *expr_code);
1.229 misha 614: O(*code, OP::OP_WRITE_EXPR_RESULT);
1.214 paf 615: $$=N();
1.229 misha 616: OA(*$$, OP::OP_EXPR_CODE__STORE_PARAM, code);
1.214 paf 617: }
1.69 paf 618: };
1.94 paf 619: store_curly_param_part: maybe_codes {
1.206 paf 620: $$=N();
1.229 misha 621: OA(*$$, OP::OP_CURLY_CODE__STORE_PARAM, $1);
1.94 paf 622: };
1.120 paf 623: code_param_value:
1.261 moko 624: empty_value /* optimized [;...] case */
1.120 paf 625: | STRING /* optimized [STRING] case */
626: | constructor_code_value /* [something complex] */
627: ;
1.1 paf 628:
629: /* name */
630:
1.259 misha 631: name_expr_dive_code: name_expr_value | name_path name_expr_value { $$=$1; P(*$$, *$2); };
1.1 paf 632:
1.259 misha 633: name_path: name_step | name_path name_step { $$=$1; P(*$$, *$2); };
1.1 paf 634: name_step: name_advance1 '.';
635: name_advance1: name_expr_value {
1.177 paf 636: // we know that name_advance1 not called from ^xxx context
637: // so we'll not check for operator call possibility as we do in name_advance2
638:
1.1 paf 639: /* stack: context */
640: $$=$1; /* stack: context,name */
1.267 misha 641: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT__SPECIAL
642: O(*$$, is_special_element(*$$) ? OP::OP_GET_ELEMENT__SPECIAL : OP::OP_GET_ELEMENT);
643: #else
1.229 misha 644: O(*$$, OP::OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */
1.267 misha 645: #endif
1.1 paf 646: };
647: name_advance2: name_expr_value {
648: /* stack: context */
649: $$=$1; /* stack: context,name */
1.267 misha 650: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT__SPECIAL
651: O(*$$, is_special_element(*$$) ? OP::OP_GET_ELEMENT__SPECIAL : OP::OP_GET_ELEMENT);
652: #else
1.229 misha 653: O(*$$, OP::OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */
1.267 misha 654: #endif
1.1 paf 655: }
1.4 paf 656: | STRING BOGUS
1.1 paf 657: ;
658: name_expr_value:
1.4 paf 659: STRING /* subname_is_const */
1.1 paf 660: | name_expr_subvar_value /* $subname_is_var_value */
1.160 parser 661: | name_expr_with_subvar_value /* xxx$part_of_subname_is_var_value */
1.166 parser 662: | name_square_code_value /* [codes] */
1.1 paf 663: ;
664: name_expr_subvar_value: '$' subvar_ref_name_rdive {
665: $$=$2;
1.229 misha 666: O(*$$, OP::OP_GET_ELEMENT);
1.1 paf 667: };
1.4 paf 668: name_expr_with_subvar_value: STRING subvar_get_writes {
1.238 misha 669: YYSTYPE code;
1.183 paf 670: {
1.206 paf 671: change_string_literal_to_write_string_literal(*(code=$1));
672: P(*code, *$2);
1.183 paf 673: }
1.206 paf 674: $$=N();
1.229 misha 675: OA(*$$, OP::OP_STRING_POOL, code);
1.1 paf 676: };
1.212 paf 677: name_square_code_value: '[' {
678: // allow $result_or_other_variable[ letters here any time ]
679: *reinterpret_cast<bool*>(&$$)=PC.explicit_result; PC.explicit_result=false;
680: } codes {
1.213 paf 681: PC.explicit_result=*reinterpret_cast<bool*>(&$2);
1.212 paf 682: } ']' {
1.206 paf 683: $$=N();
1.267 misha 684: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT__SPECIAL
685: if(!maybe_append_simple_diving_code(*$$, *$3))
686: #endif
687: {
1.281 moko 688: OA(*$$, OP::OP_OBJECT_POOL, $3); /* stack: empty write context */
689: /* some code that writes to that context */
690: /* context=pop; stack: context.value() */
1.267 misha 691: }
1.160 parser 692: };
1.154 parser 693: subvar_ref_name_rdive: STRING {
1.206 paf 694: $$=N();
1.229 misha 695: O(*$$, OP::OP_WITH_READ);
1.206 paf 696: P(*$$, *$1);
1.1 paf 697: };
1.259 misha 698: subvar_get_writes: subvar__get_write | subvar_get_writes subvar__get_write { $$=$1; P(*$$, *$2); };
1.1 paf 699: subvar__get_write: '$' subvar_ref_name_rdive {
700: $$=$2;
1.229 misha 701: O(*$$, OP::OP_GET_ELEMENT__WRITE);
1.42 paf 702: };
703:
1.154 parser 704: class_prefix:
705: class_static_prefix
706: | class_constructor_prefix
707: ;
1.155 parser 708: class_static_prefix: STRING ':' {
709: $$=$1; // stack: class name string
1.282 moko 710: OP::OPCODE code = OP::OP_VALUE__GET_CLASS;
1.206 paf 711: if(*LA2S(*$$) == BASE_NAME) { // pseudo BASE class
712: if(VStateless_class* base=PC.cclass->base_class()) {
1.275 moko 713: change_string_literal_value(*$$, *new String(base->type()));
1.189 paf 714: } else {
715: strcpy(PC.error, "no base class declared");
716: YYERROR;
717: }
1.282 moko 718: code = OP::OP_VALUE__GET_BASE_CLASS;
719: } else {
1.283 ! moko 720: // can't use get_class because it will call @autouse[] if the class wasn't loaded
! 721: VStateless_class* base=PC.request.classes().get(*LA2S(*$$));
! 722: if(base && PC.cclass->derived_from(*base))
1.282 moko 723: code = OP::OP_VALUE__GET_BASE_CLASS;
1.189 paf 724: }
1.238 misha 725: // optimized OP_VALUE+origin+string+OP_GET_CLASS => OP_VALUE__GET_CLASS+origin+string
1.282 moko 726: change_first(*$$, OP::OP_VALUE, code);
1.155 parser 727: };
728: class_constructor_prefix: class_static_prefix ':' {
1.154 parser 729: $$=$1;
1.180 paf 730: if(!PC.in_call_value) {
1.154 parser 731: strcpy(PC.error, ":: not allowed here");
732: YYERROR;
733: }
1.229 misha 734: O(*$$, OP::OP_PREPARE_TO_CONSTRUCT_OBJECT);
1.1 paf 735: };
736:
1.53 paf 737:
1.56 paf 738: /* expr */
1.53 paf 739:
1.214 paf 740: expr_value: expr;
1.56 paf 741: expr:
1.214 paf 742: double_or_STRING
1.216 paf 743: | true_value
744: | false_value
1.64 paf 745: | get_value
1.66 paf 746: | call_value
1.259 misha 747: | '"' string_inside_quotes_value '"' { $$ = $2; }
748: | '\'' string_inside_quotes_value '\'' { $$ = $2; }
1.60 paf 749: | '(' expr ')' { $$ = $2; }
750: /* stack: operand // stack: @operand */
1.259 misha 751: | '-' expr %prec NUNARY { $$=$2; O(*$$, OP::OP_NEG); }
752: | '+' expr %prec NUNARY { $$=$2; }
753: | '~' expr { $$=$2; O(*$$, OP::OP_INV); }
754: | '!' expr { $$=$2; O(*$$, OP::OP_NOT); }
755: | "def" expr { $$=$2; O(*$$, OP::OP_DEF); }
756: | "in" expr { $$=$2; O(*$$, OP::OP_IN); }
757: | "-f" expr { $$=$2; O(*$$, OP::OP_FEXISTS); }
758: | "-d" expr { $$=$2; O(*$$, OP::OP_DEXISTS); }
1.60 paf 759: /* stack: a,b // stack: a@b */
1.259 misha 760: | expr '-' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_SUB); }
761: | expr '+' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_ADD); }
762: | expr '*' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_MUL); }
763: | expr '/' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_DIV); }
764: | expr '%' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_MOD); }
765: | expr '\\' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_INTDIV); }
766: | expr "<<" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_SL); }
767: | expr ">>" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_SR); }
768: | expr '&' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_AND); }
769: | expr '|' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_OR); }
770: | expr "!|" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_XOR); }
771: | expr "&&" expr { $$=$1; OA(*$$, OP::OP_NESTED_CODE, $3); O(*$$, OP::OP_LOG_AND); }
772: | expr "||" expr { $$=$1; OA(*$$, OP::OP_NESTED_CODE, $3); O(*$$, OP::OP_LOG_OR); }
773: | expr "!||" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_LOG_XOR); }
774: | expr '<' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_LT); }
775: | expr '>' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_GT); }
776: | expr "<=" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_LE); }
777: | expr ">=" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_GE); }
778: | expr "==" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_EQ); }
779: | expr "!=" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_NE); }
780: | expr "lt" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_LT); }
781: | expr "gt" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_GT); }
782: | expr "le" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_LE); }
783: | expr "ge" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_GE); }
784: | expr "eq" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_EQ); }
785: | expr "ne" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_NE); }
786: | expr "is" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_IS); }
1.56 paf 787: ;
1.214 paf 788:
789: double_or_STRING: STRING {
1.238 misha 790: // optimized OP_STRING => OP_VALUE for doubles
1.214 paf 791: maybe_change_string_literal_to_double_literal(*($$=$1));
792: };
1.55 paf 793:
1.65 paf 794: string_inside_quotes_value: maybe_codes {
1.238 misha 795: #ifdef OPTIMIZE_BYTECODE_STRING_POOL
796: // it brakes ^if(" 09 "){...}
797: YYSTYPE code=$1;
798: $$=N();
1.267 misha 799: if(code->count()==3 && change_first(*code, OP::OP_STRING__WRITE, OP::OP_VALUE)){
1.238 misha 800: // optimized OP_STRING__WRITE+origin+value => OP_VALUE+origin+value without starting OP_STRING_POOL
801: P(*$$, *code);
802: } else {
803: OA(*$$, OP::OP_STRING_POOL, code); /* stack: empty write context */
804: }
805: #else
1.206 paf 806: $$=N();
1.229 misha 807: OA(*$$, OP::OP_STRING_POOL, $1); /* stack: empty write context */
1.238 misha 808: #endif
1.183 paf 809: /* some code that writes to that context */
810: /* context=pop; stack: context.get_string() */
1.53 paf 811: };
1.1 paf 812:
1.27 paf 813: /* basics */
1.1 paf 814:
1.81 paf 815: write_string: STRING {
1.238 misha 816: // optimized OP_STRING+OP_WRITE_VALUE => OP_STRING__WRITE
1.259 misha 817: change_string_literal_to_write_string_literal(*($$=$1));
1.54 paf 818: };
819:
1.261 moko 820: empty_value: /* empty */ { $$=VL(/*we know that we will not change it*/const_cast<VString*>(&vempty), 0, 0, 0); }
1.259 misha 821: true_value: "true" { $$ = VL(/*we know that we will not change it*/const_cast<VBool*>(&vtrue), 0, 0, 0); }
822: false_value: "false" { $$ = VL(/*we know that we will not change it*/const_cast<VBool*>(&vfalse), 0, 0, 0); }
1.216 paf 823:
1.259 misha 824: empty: /* empty */ { $$=N(); };
1.1 paf 825:
826: %%
1.105 paf 827: #endif
1.1 paf 828:
829: /*
830: 000$111(2222)00
831: 000$111{3333}00
1.9 paf 832: $,^: push,=0
1.1 paf 833: 1:( { break=pop
834: 2:( ) pop
835: 3:{ } pop
836:
837: 000^111(2222)4444{33333}4000
1.9 paf 838: $,^: push,=0
1.1 paf 839: 1:( { break=pop
840: 2:( )=4
841: 3:{ }=4
842: 4:[^({]=pop
843: */
844:
1.206 paf 845: inline void ungetc(Parse_control& pc, uint last_line_end_col) {
846: pc.source--;
847: if(pc.pos.col==0) {
848: --pc.pos.line; pc.pos.col=last_line_end_col;
849: } else
850: --pc.pos.col;
851:
852: }
853: static int yylex(YYSTYPE *lvalp, void *apc) {
854: register Parse_control& pc=*static_cast<Parse_control*>(apc);
855:
856: #define lexical_brackets_nestage pc.brackets_nestages[pc.ls_sp]
1.48 paf 857: #define RC {result=c; goto break2; }
1.1 paf 858:
1.206 paf 859: register int c;
860: int result;
1.1 paf 861:
1.206 paf 862: if(pc.pending_state) {
863: result=pc.pending_state;
864: pc.pending_state=0;
1.1 paf 865: return result;
866: }
867:
1.206 paf 868: const char *begin=pc.source;
869: Pos begin_pos=pc.pos;
1.91 paf 870: const char *end;
1.67 paf 871: int skip_analized=0;
1.50 paf 872: while(true) {
1.206 paf 873: c=*(end=(pc.source++));
874: // fprintf(stderr, "\nchar: %c %02X; nestage: %d, sp=%d", c, c, lexical_brackets_nestage, pc.sp);
1.1 paf 875:
1.208 paf 876: if(c=='\n')
1.206 paf 877: pc.pos_next_line();
1.208 paf 878: else
1.206 paf 879: pc.pos_next_c(c);
1.208 paf 880: // fprintf(stderr, "\nchar: %c file(%d:%d)", c, pc.pos.line, pc.pos.col);
1.73 paf 881:
1.208 paf 882: if(pc.pos.col==0+1 && c=='@') {
1.206 paf 883: if(pc.ls==LS_DEF_SPECIAL_BODY) {
1.175 paf 884: // @SPECIAL
885: // ...
886: // @<here =
1.206 paf 887: pop_LS(pc); // exiting from LS_DEF_SPECIAL_BODY state
1.175 paf 888: } // continuing checks
1.206 paf 889: if(pc.ls==LS_USER) {
890: push_LS(pc, LS_DEF_NAME);
1.171 parser 891: RC;
1.175 paf 892: } else // @ in first column inside some code [when could that be?]
1.171 parser 893: result=BAD_METHOD_DECL_START;
894: goto break2;
1.209 paf 895: }
896: if(c=='^') {
1.206 paf 897: if(pc.ls==LS_METHOD_AFTER) {
1.203 paf 898: // handle after-method situation
1.206 paf 899: pop_LS(pc);
1.203 paf 900: result=EON;
901: skip_analized=-1; // return to punctuation afterwards to assure it's literality
902: goto break2;
903: }
1.206 paf 904: switch(pc.ls) {
1.169 parser 905: case LS_EXPRESSION_VAR_NAME_WITH_COLON:
906: case LS_EXPRESSION_VAR_NAME_WITHOUT_COLON:
907: case LS_VAR_NAME_SIMPLE_WITH_COLON:
908: case LS_VAR_NAME_SIMPLE_WITHOUT_COLON:
909: case LS_VAR_NAME_CURLY:
910: case LS_METHOD_NAME:
1.194 paf 911: case LS_USER_COMMENT:
1.169 parser 912: case LS_DEF_COMMENT:
913: // no literals in names, please
914: break;
915: default:
1.206 paf 916: switch(*pc.source) {
1.165 parser 917: // ^escaping some punctuators
1.228 misha 918: case '^': case '$': case ';': case '@':
1.126 paf 919: case '(': case ')':
1.48 paf 920: case '[': case ']':
921: case '{': case '}':
1.172 parser 922: case '"': case ':':
1.40 paf 923: if(end!=begin) {
1.206 paf 924: if(!pc.string_start)
925: pc.string_start=begin_pos;
1.40 paf 926: // append piece till ^
1.206 paf 927: pc.string.append_strdup_know_length(begin, end-begin);
1.40 paf 928: }
1.63 paf 929: // reset piece 'begin' position & line
1.206 paf 930: begin=pc.source; // ->punctuation
931: begin_pos=pc.pos;
1.203 paf 932: // skip over _ after ^
1.206 paf 933: pc.source++; pc.pos.col++;
1.203 paf 934: // skip analysis = forced literal
935: continue;
1.114 paf 936:
937: // converting ^#HH into char(hex(HH))
938: case '#':
939: if(end!=begin) {
1.206 paf 940: if(!pc.string_start)
941: pc.string_start=begin_pos;
1.114 paf 942: // append piece till ^
1.206 paf 943: pc.string.append_strdup_know_length(begin, end-begin);
1.114 paf 944: }
945: // #HH ?
1.228 misha 946: if(pc.source[1] && isxdigit(pc.source[1]) && pc.source[2] && isxdigit(pc.source[2])) {
1.218 paf 947: char c=(char)(
1.206 paf 948: hex_value[(unsigned char)pc.source[1]]*0x10+
1.218 paf 949: hex_value[(unsigned char)pc.source[2]]);
1.206 paf 950: if(c==0) {
1.114 paf 951: result=BAD_HEX_LITERAL;
952: goto break2; // wrong hex value[no ^#00 chars allowed]: bail out
953: }
954: // append char(hex(HH))
1.206 paf 955: pc.string.append(c);
1.114 paf 956: // skip over ^#HH
1.206 paf 957: pc.source+=3;
958: pc.pos.col+=3;
1.114 paf 959: // reset piece 'begin' position & line
1.206 paf 960: begin=pc.source; // ->after ^#HH
961: begin_pos=pc.pos;
1.203 paf 962: // skip analysis = forced literal
1.114 paf 963: continue;
964: }
1.228 misha 965: // just escaped char
966: // reset piece 'begin' position & line
967: begin=pc.source;
968: begin_pos=pc.pos;
969: // skip over _ after ^
970: pc.source++; pc.pos.col++;
971: // skip analysis = forced literal
972: continue;
1.1 paf 973: }
1.169 parser 974: break;
1.203 paf 975: }
1.169 parser 976: }
1.113 paf 977: // #comment start skipping
1.206 paf 978: if(c=='#' && pc.pos.col==1) {
1.112 paf 979: if(end!=begin) {
1.206 paf 980: if(!pc.string_start)
981: pc.string_start=begin_pos;
1.112 paf 982: // append piece till #
1.206 paf 983: pc.string.append_strdup_know_length(begin, end-begin);
1.112 paf 984: }
985: // fall into COMMENT lexical state [wait for \n]
1.206 paf 986: push_LS(pc, LS_USER_COMMENT);
1.175 paf 987: continue;
1.112 paf 988: }
1.206 paf 989: switch(pc.ls) {
1.10 paf 990:
991: // USER'S = NOT OURS
1.1 paf 992: case LS_USER:
1.206 paf 993: case LS_NAME_SQUARE_PART: // name.[here].xxx
994: if(pc.trim_bof)
1.153 parser 995: switch(c) {
996: case '\n': case ' ': case '\t':
1.206 paf 997: begin=pc.source;
998: begin_pos=pc.pos;
1.152 parser 999: continue; // skip it
1.153 parser 1000: default:
1.206 paf 1001: pc.trim_bof=false;
1.152 parser 1002: }
1.48 paf 1003: switch(c) {
1004: case '$':
1.206 paf 1005: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1006: RC;
1007: case '^':
1.206 paf 1008: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1009: RC;
1.166 parser 1010: case ']':
1.206 paf 1011: if(pc.ls==LS_NAME_SQUARE_PART)
1.166 parser 1012: if(--lexical_brackets_nestage==0) {// $name.[co<]?>de<]?>
1.206 paf 1013: pop_LS(pc); // $name.[co<]>de<]!>
1.166 parser 1014: RC;
1015: }
1.160 parser 1016: break;
1.166 parser 1017: case '[': // $name.[co<[>de]
1.206 paf 1018: if(pc.ls==LS_NAME_SQUARE_PART)
1.166 parser 1019: lexical_brackets_nestage++;
1.161 parser 1020: break;
1.112 paf 1021: }
1.209 paf 1022: if(pc.explicit_result && c)
1023: switch(c) {
1.276 moko 1024: default:
1025: pc.string.append(c);
1.209 paf 1026: case '\n': case ' ': case '\t':
1027: begin=pc.source;
1028: begin_pos=pc.pos;
1.276 moko 1029: continue;
1.209 paf 1030: }
1.112 paf 1031: break;
1032:
1033: // #COMMENT
1.194 paf 1034: case LS_USER_COMMENT:
1.112 paf 1035: if(c=='\n') {
1036: // skip comment
1.206 paf 1037: begin=pc.source;
1038: begin_pos=pc.pos;
1.112 paf 1039:
1.206 paf 1040: pop_LS(pc);
1.112 paf 1041: continue;
1.1 paf 1042: }
1.48 paf 1043: break;
1044:
1045: // STRING IN EXPRESSION
1.145 parser 1046: case LS_EXPRESSION_STRING_QUOTED:
1047: case LS_EXPRESSION_STRING_APOSTROFED:
1.48 paf 1048: switch(c) {
1049: case '"':
1.145 parser 1050: case '\'':
1051: if(
1.270 moko 1052: (pc.ls == LS_EXPRESSION_STRING_QUOTED && c=='"') ||
1053: (pc.ls == LS_EXPRESSION_STRING_APOSTROFED && c=='\'') ) {
1.206 paf 1054: pop_LS(pc); //"abc". | 'abc'.
1.145 parser 1055: RC;
1056: }
1057: break;
1.48 paf 1058: case '$':
1.206 paf 1059: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1060: RC;
1061: case '^':
1.206 paf 1062: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1063: RC;
1.10 paf 1064: }
1065: break;
1066:
1067: // METHOD DEFINITION
1068: case LS_DEF_NAME:
1.48 paf 1069: switch(c) {
1070: case '[':
1.206 paf 1071: pc.ls=LS_DEF_PARAMS;
1.48 paf 1072: RC;
1073: case '\n':
1.206 paf 1074: pc.ls=LS_DEF_SPECIAL_BODY;
1.48 paf 1075: RC;
1.10 paf 1076: }
1077: break;
1.48 paf 1078:
1.10 paf 1079: case LS_DEF_PARAMS:
1.48 paf 1080: switch(c) {
1.192 paf 1081: case '$': // common error
1.193 paf 1082: result=BAD_METHOD_PARAMETER_NAME_CHARACTER;
1083: goto break2;
1.48 paf 1084: case ';':
1085: RC;
1086: case ']':
1.206 paf 1087: pc.ls=*pc.source=='['?LS_DEF_LOCALS:LS_DEF_COMMENT;
1.48 paf 1088: RC;
1.49 paf 1089: case '\n': // wrong. bailing out
1.206 paf 1090: pop_LS(pc);
1.48 paf 1091: RC;
1.10 paf 1092: }
1093: break;
1.48 paf 1094:
1.10 paf 1095: case LS_DEF_LOCALS:
1.48 paf 1096: switch(c) {
1097: case '[':
1098: case ';':
1099: RC;
1100: case ']':
1.206 paf 1101: pc.ls=LS_DEF_COMMENT;
1.48 paf 1102: RC;
1103: case '\n': // wrong. bailing out
1.206 paf 1104: pop_LS(pc);
1.48 paf 1105: RC;
1.10 paf 1106: }
1107: break;
1.48 paf 1108:
1.10 paf 1109: case LS_DEF_COMMENT:
1110: if(c=='\n') {
1.206 paf 1111: pop_LS(pc);
1.48 paf 1112: RC;
1.37 paf 1113: }
1114: break;
1115:
1.48 paf 1116: case LS_DEF_SPECIAL_BODY:
1.175 paf 1117: if(c=='\n')
1.48 paf 1118: RC;
1119: break;
1120:
1121: // (EXPRESSION)
1.69 paf 1122: case LS_VAR_ROUND:
1123: case LS_METHOD_ROUND:
1.48 paf 1124: switch(c) {
1125: case ')':
1.270 moko 1126: if(--lexical_brackets_nestage==0) {
1.206 paf 1127: if(pc.ls==LS_METHOD_ROUND) // method round param ended
1128: pc.ls=LS_METHOD_AFTER; // look for method end
1129: else // pc.ls==LS_VAR_ROUND // variable constructor ended
1130: pop_LS(pc); // return to normal life
1.270 moko 1131: }
1.48 paf 1132: RC;
1.194 paf 1133: case '#': // comment start skipping
1134: if(end!=begin) {
1.206 paf 1135: if(!pc.string_start)
1136: pc.string_start=begin_pos;
1.194 paf 1137: // append piece till #
1.206 paf 1138: pc.string.append_strdup_know_length(begin, end-begin);
1.194 paf 1139: }
1140: // fall into COMMENT lexical state [wait for \n]
1.206 paf 1141: push_LS(pc, LS_EXPRESSION_COMMENT);
1.194 paf 1142: lexical_brackets_nestage=1;
1143: continue;
1.48 paf 1144: case '$':
1.206 paf 1145: push_LS(pc, LS_EXPRESSION_VAR_NAME_WITH_COLON);
1.48 paf 1146: RC;
1147: case '^':
1.206 paf 1148: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1149: RC;
1150: case '(':
1151: lexical_brackets_nestage++;
1152: RC;
1.67 paf 1153: case '-':
1.206 paf 1154: switch(*pc.source) {
1.127 paf 1155: case 'f': // -f
1.67 paf 1156: skip_analized=1;
1157: result=FEXISTS;
1.127 paf 1158: goto break2;
1159: case 'd': // -d
1160: skip_analized=1;
1161: result=DEXISTS;
1162: goto break2;
1.191 paf 1163: default: // minus
1.67 paf 1164: result=c;
1.127 paf 1165: goto break2;
1166: }
1.67 paf 1167: goto break2;
1.173 paf 1168: case '+': case '*': case '/': case '%': case '\\':
1.58 paf 1169: case '~':
1.48 paf 1170: case ';':
1171: RC;
1.193 paf 1172: case '&': case '|':
1.206 paf 1173: if(*pc.source==c) { // && ||
1.193 paf 1174: result=c=='&'?LAND:LOR;
1.67 paf 1175: skip_analized=1;
1.58 paf 1176: } else
1177: result=c;
1178: goto break2;
1.193 paf 1179: case '!':
1.206 paf 1180: switch(pc.source[0]) {
1.193 paf 1181: case '|': // !| !||
1182: skip_analized=1;
1.206 paf 1183: if(pc.source[1]=='|') {
1.193 paf 1184: skip_analized++;
1185: result=LXOR;
1186: } else
1187: result=NXOR;
1188: goto break2;
1189: case '=': // !=
1190: skip_analized=1;
1191: result=NNE;
1192: goto break2;
1193: }
1194: RC;
1.195 paf 1195:
1196: case '<': // <<, <=, <
1.206 paf 1197: switch(*pc.source) {
1.195 paf 1198: case '<': // <[<]
1199: skip_analized=1; result=NSL; break;
1200: case '=': // <[=]
1201: skip_analized=1; result=NLE; break;
1202: default: // <[]
1203: result=c; break;
1204: }
1205: goto break2;
1206: case '>': // >>, >=, >
1.206 paf 1207: switch(*pc.source) {
1.195 paf 1208: case '>': // >[>]
1209: skip_analized=1; result=NSR; break;
1210: case '=': // >[=]
1211: skip_analized=1; result=NGE; break;
1212: default: // >[]
1213: result=c; break;
1214: }
1215: goto break2;
1216: case '=': // ==
1.206 paf 1217: switch(*pc.source) {
1.195 paf 1218: case '=': // =[=]
1219: skip_analized=1; result=NEQ; break;
1220: default: // =[]
1221: result=c; break; // not used now
1222: }
1.58 paf 1223: goto break2;
1.195 paf 1224:
1.48 paf 1225: case '"':
1.206 paf 1226: push_LS(pc, LS_EXPRESSION_STRING_QUOTED);
1.145 parser 1227: RC;
1228: case '\'':
1.206 paf 1229: push_LS(pc, LS_EXPRESSION_STRING_APOSTROFED);
1.48 paf 1230: RC;
1.50 paf 1231: case 'l': case 'g': case 'e': case 'n':
1.51 paf 1232: if(end==begin) // right after whitespace
1.206 paf 1233: if(isspace(pc.source[1])) {
1234: switch(*pc.source) {
1.117 paf 1235: // case '?': // ok [and bad cases, yacc would bark at them]
1236: case 't': // lt gt [et nt]
1237: result=c=='l'?SLT:c=='g'?SGT:BAD_STRING_COMPARISON_OPERATOR;
1238: skip_analized=1;
1239: goto break2;
1240: case 'e': // le ge ne [ee]
1241: result=c=='l'?SLE:c=='g'?SGE:c=='n'?SNE:BAD_STRING_COMPARISON_OPERATOR;
1242: skip_analized=1;
1243: goto break2;
1244: case 'q': // eq [lq gq nq]
1245: result=c=='e'?SEQ:BAD_STRING_COMPARISON_OPERATOR;
1246: skip_analized=1;
1247: goto break2;
1248: }
1.67 paf 1249: }
1250: break;
1251: case 'i':
1252: if(end==begin) // right after whitespace
1.206 paf 1253: if(isspace(pc.source[1])) {
1254: switch(pc.source[0]) {
1.117 paf 1255: case 'n': // in
1.95 paf 1256: skip_analized=1;
1257: result=IN;
1258: goto break2;
1.117 paf 1259: case 's': // is
1.95 paf 1260: skip_analized=1;
1261: result=IS;
1262: goto break2;
1263: }
1.67 paf 1264: }
1265: break;
1266: case 'd':
1267: if(end==begin) // right after whitespace
1.206 paf 1268: if(pc.source[0]=='e' && pc.source[1]=='f') { // def
1.225 misha 1269: switch(pc.source[2]){
1270: case ' ': case '\t': case '\n': case '"': case '\'': case '^': case '$': // non-quoted string without whitespace after 'def' is not allowed
1271: skip_analized=2;
1272: result=DEF;
1273: goto break2;
1274: }
1275: // error: incorrect char after 'def'
1.50 paf 1276: }
1.48 paf 1277: break;
1.216 paf 1278: case 't':
1279: if(end==begin) // right after whitespace
1.225 misha 1280: if(pc.source[0]=='r' && pc.source[1]=='u' && pc.source[2]=='e') { // true
1.216 paf 1281: skip_analized=3;
1282: result=LITERAL_TRUE;
1283: goto break2;
1284: }
1285: break;
1286: case 'f':
1287: if(end==begin) // right after whitespace
1.225 misha 1288: if(pc.source[0]=='a' && pc.source[1]=='l' && pc.source[2]=='s' && pc.source[3]=='e') { // false
1.216 paf 1289: skip_analized=4;
1290: result=LITERAL_FALSE;
1291: goto break2;
1292: }
1293: break;
1.48 paf 1294: case ' ': case '\t': case '\n':
1.63 paf 1295: if(end!=begin) { // there were a string after previous operator?
1296: result=0; // return that string
1297: goto break2;
1.48 paf 1298: }
1.63 paf 1299: // that's a leading|traling space or after-operator-space
1300: // ignoring it
1301: // reset piece 'begin' position & line
1.206 paf 1302: begin=pc.source; // after whitespace char
1303: begin_pos=pc.pos;
1.48 paf 1304: continue;
1.1 paf 1305: }
1306: break;
1.194 paf 1307: case LS_EXPRESSION_COMMENT:
1308: if(c=='(')
1309: lexical_brackets_nestage++;
1310:
1.206 paf 1311: switch(*pc.source) {
1.194 paf 1312: case '\n': case ')':
1.206 paf 1313: if(*pc.source==')')
1.194 paf 1314: if(--lexical_brackets_nestage!=0)
1315: continue;
1316:
1317: // skip comment
1.206 paf 1318: begin=pc.source;
1319: begin_pos=pc.pos;
1.194 paf 1320:
1.206 paf 1321: pop_LS(pc);
1.194 paf 1322: continue;
1323: }
1324: break;
1.1 paf 1325:
1.10 paf 1326: // VARIABLE GET/PUT/WITH
1.166 parser 1327: case LS_VAR_NAME_SIMPLE_WITH_COLON:
1328: case LS_VAR_NAME_SIMPLE_WITHOUT_COLON:
1329: case LS_EXPRESSION_VAR_NAME_WITH_COLON:
1330: case LS_EXPRESSION_VAR_NAME_WITHOUT_COLON:
1331: if(
1.206 paf 1332: pc.ls==LS_EXPRESSION_VAR_NAME_WITH_COLON ||
1333: pc.ls==LS_EXPRESSION_VAR_NAME_WITHOUT_COLON) {
1.181 paf 1334: // name in expr ends also before
1.48 paf 1335: switch(c) {
1.181 paf 1336: // expression minus
1.92 paf 1337: case '-':
1.181 paf 1338: // expression integer division
1339: case '\\':
1.206 paf 1340: pop_LS(pc);
1341: pc.ungetc();
1.48 paf 1342: result=EON;
1343: goto break2;
1344: }
1345: }
1.166 parser 1346: if(
1.206 paf 1347: pc.ls==LS_VAR_NAME_SIMPLE_WITHOUT_COLON ||
1348: pc.ls==LS_EXPRESSION_VAR_NAME_WITHOUT_COLON) {
1.142 parser 1349: // name already has ':', stop before next
1350: switch(c) {
1351: case ':':
1.206 paf 1352: pop_LS(pc);
1353: pc.ungetc();
1.142 parser 1354: result=EON;
1355: goto break2;
1356: }
1357: }
1.48 paf 1358: switch(c) {
1359: case 0:
1360: case ' ': case '\t': case '\n':
1361: case ';':
1.126 paf 1362: case ']': case '}': case ')':
1363: case '"': case '\'':
1.139 parser 1364: case '<': case '>': // these stand for HTML brackets AND expression binary ops
1.253 misha 1365: case '+': case '*': case '/': case '\\': case '%':
1.92 paf 1366: case '&': case '|':
1367: case '=': case '!':
1.99 paf 1368: // common delimiters
1.190 paf 1369: case ',': case '?': case '#':
1.220 paf 1370: // mysql column separators
1371: case '`':
1.139 parser 1372: // before call
1373: case '^':
1.206 paf 1374: pop_LS(pc);
1375: pc.ungetc();
1.13 paf 1376: result=EON;
1.1 paf 1377: goto break2;
1.48 paf 1378: case '[':
1.162 parser 1379: // $name.<[>code]
1.206 paf 1380: if(pc.pos.col>1/*not first column*/ && (
1.163 parser 1381: end[-1]=='$'/*was start of get*/ ||
1382: end[-1]==':'/*was class name delim */ ||
1383: end[-1]=='.'/*was name delim */
1.162 parser 1384: )) {
1.206 paf 1385: push_LS(pc, LS_NAME_SQUARE_PART);
1.162 parser 1386: lexical_brackets_nestage=1;
1387: RC;
1388: }
1.206 paf 1389: pc.ls=LS_VAR_SQUARE;
1.1 paf 1390: lexical_brackets_nestage=1;
1.48 paf 1391: RC;
1392: case '{':
1393: if(begin==end) { // ${name}, no need of EON, switching LS
1.206 paf 1394: pc.ls=LS_VAR_NAME_CURLY;
1.48 paf 1395: } else {
1.206 paf 1396: pc.ls=LS_VAR_CURLY;
1.48 paf 1397: lexical_brackets_nestage=1;
1398: }
1.69 paf 1399:
1.48 paf 1400: RC;
1401: case '(':
1.206 paf 1402: pc.ls=LS_VAR_ROUND;
1.1 paf 1403: lexical_brackets_nestage=1;
1.48 paf 1404: RC;
1405: case '.': // name part delim
1406: case '$': // name part subvar
1.160 parser 1407: case ':': // class<:>name
1.166 parser 1408: // go to _WITHOUT_COLON state variant...
1.206 paf 1409: if(pc.ls==LS_VAR_NAME_SIMPLE_WITH_COLON)
1410: pc.ls=LS_VAR_NAME_SIMPLE_WITHOUT_COLON;
1411: else if(pc.ls==LS_EXPRESSION_VAR_NAME_WITH_COLON)
1412: pc.ls=LS_EXPRESSION_VAR_NAME_WITHOUT_COLON;
1.166 parser 1413: // ...stop before next ':'
1.48 paf 1414: RC;
1.1 paf 1415: }
1416: break;
1.48 paf 1417:
1.1 paf 1418: case LS_VAR_NAME_CURLY:
1.48 paf 1419: switch(c) {
1.162 parser 1420: case '[':
1.166 parser 1421: // ${name.<[>code]}
1.206 paf 1422: push_LS(pc, LS_NAME_SQUARE_PART);
1.160 parser 1423: lexical_brackets_nestage=1;
1424: RC;
1.48 paf 1425: case '}': // ${name} finished, restoring LS
1.206 paf 1426: pop_LS(pc);
1.48 paf 1427: RC;
1428: case '.': // name part delim
1429: case '$': // name part subvar
1430: case ':': // ':name' or 'class:name'
1431: RC;
1.1 paf 1432: }
1433: break;
1.48 paf 1434:
1435: case LS_VAR_SQUARE:
1436: switch(c) {
1437: case '$':
1.206 paf 1438: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1439: RC;
1440: case '^':
1.206 paf 1441: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1442: RC;
1443: case ']':
1.1 paf 1444: if(--lexical_brackets_nestage==0) {
1.206 paf 1445: pop_LS(pc);
1.48 paf 1446: RC;
1.1 paf 1447: }
1.48 paf 1448: break;
1449: case ';': // operator_or_fmt;value delim
1450: RC;
1451: case '[':
1452: lexical_brackets_nestage++;
1453: break;
1.1 paf 1454: }
1455: break;
1.48 paf 1456:
1.1 paf 1457: case LS_VAR_CURLY:
1.48 paf 1458: switch(c) {
1459: case '$':
1.206 paf 1460: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1461: RC;
1462: case '^':
1.206 paf 1463: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1464: RC;
1465: case '}':
1.1 paf 1466: if(--lexical_brackets_nestage==0) {
1.206 paf 1467: pop_LS(pc);
1.48 paf 1468: RC;
1.1 paf 1469: }
1.48 paf 1470: break;
1471: case '{':
1.1 paf 1472: lexical_brackets_nestage++;
1.48 paf 1473: break;
1474: }
1.1 paf 1475: break;
1476:
1.10 paf 1477: // METHOD CALL
1.1 paf 1478: case LS_METHOD_NAME:
1.48 paf 1479: switch(c) {
1480: case '[':
1.166 parser 1481: // ^name.<[>code].xxx
1.206 paf 1482: if(pc.pos.col>1/*not first column*/ && (
1.163 parser 1483: end[-1]=='^'/*was start of call*/ || // never, ^[ is literal...
1484: end[-1]==':'/*was class name delim */ ||
1485: end[-1]=='.'/*was name delim */
1.162 parser 1486: )) {
1.206 paf 1487: push_LS(pc, LS_NAME_SQUARE_PART);
1.162 parser 1488: lexical_brackets_nestage=1;
1489: RC;
1490: }
1.206 paf 1491: pc.ls=LS_METHOD_SQUARE;
1.1 paf 1492: lexical_brackets_nestage=1;
1.48 paf 1493: RC;
1494: case '{':
1.206 paf 1495: pc.ls=LS_METHOD_CURLY;
1.1 paf 1496: lexical_brackets_nestage=1;
1.48 paf 1497: RC;
1.69 paf 1498: case '(':
1.206 paf 1499: pc.ls=LS_METHOD_ROUND;
1.69 paf 1500: lexical_brackets_nestage=1;
1501: RC;
1.48 paf 1502: case '.': // name part delim
1503: case '$': // name part subvar
1504: case ':': // ':name' or 'class:name'
1.170 parser 1505: case '^': // ^abc^xxx wrong. bailing out
1506: case ']': case '}': case ')': // ^abc]}) wrong. bailing out
1.207 paf 1507: case ' ': // ^if ( wrong. bailing out
1.48 paf 1508: RC;
1.1 paf 1509: }
1510: break;
1.48 paf 1511:
1512: case LS_METHOD_SQUARE:
1513: switch(c) {
1514: case '$':
1.206 paf 1515: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1516: RC;
1517: case '^':
1.206 paf 1518: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1519: RC;
1520: case ';': // param delim
1521: RC;
1522: case ']':
1.1 paf 1523: if(--lexical_brackets_nestage==0) {
1.206 paf 1524: pc.ls=LS_METHOD_AFTER;
1.48 paf 1525: RC;
1.1 paf 1526: }
1.48 paf 1527: break;
1528: case '[':
1.1 paf 1529: lexical_brackets_nestage++;
1.48 paf 1530: break;
1531: }
1.1 paf 1532: break;
1.48 paf 1533:
1.1 paf 1534: case LS_METHOD_CURLY:
1.48 paf 1535: switch(c) {
1536: case '$':
1.206 paf 1537: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1538: RC;
1539: case '^':
1.206 paf 1540: push_LS(pc, LS_METHOD_NAME);
1.94 paf 1541: RC;
1542: case ';': // param delim
1.48 paf 1543: RC;
1544: case '}':
1.1 paf 1545: if(--lexical_brackets_nestage==0) {
1.206 paf 1546: pc.ls=LS_METHOD_AFTER;
1.48 paf 1547: RC;
1.1 paf 1548: }
1.48 paf 1549: break;
1550: case '{':
1.1 paf 1551: lexical_brackets_nestage++;
1.48 paf 1552: break;
1553: }
1.209 paf 1554: if(pc.explicit_result && c)
1555: switch(c) {
1.276 moko 1556: default:
1557: pc.string.append(c);
1.209 paf 1558: case '\n': case ' ': case '\t':
1559: begin=pc.source;
1560: begin_pos=pc.pos;
1.276 moko 1561: continue;
1.209 paf 1562: }
1.1 paf 1563: break;
1.48 paf 1564:
1.1 paf 1565: case LS_METHOD_AFTER:
1.69 paf 1566: if(c=='[') {/* ][ }[ )[ */
1.206 paf 1567: pc.ls=LS_METHOD_SQUARE;
1.1 paf 1568: lexical_brackets_nestage=1;
1.48 paf 1569: RC;
1.281 moko 1570: }
1.69 paf 1571: if(c=='{') {/* ]{ }{ ){ */
1.206 paf 1572: pc.ls=LS_METHOD_CURLY;
1.69 paf 1573: lexical_brackets_nestage=1;
1574: RC;
1.281 moko 1575: }
1.69 paf 1576: if(c=='(') {/* ]( }( )( */
1.206 paf 1577: pc.ls=LS_METHOD_ROUND;
1.1 paf 1578: lexical_brackets_nestage=1;
1.48 paf 1579: RC;
1.281 moko 1580: }
1.206 paf 1581: pop_LS(pc);
1582: pc.ungetc();
1.13 paf 1583: result=EON;
1.1 paf 1584: goto break2;
1585: }
1.9 paf 1586: if(c==0) {
1.1 paf 1587: result=-1;
1588: break;
1589: }
1590: }
1591:
1592: break2:
1.59 paf 1593: if(end!=begin) { // there is last piece?
1.258 misha 1594: if(c=='@' || c==0) // we are before LS_DEF_NAME or EOF?
1595: while(end!=begin && end[-1]=='\n') // trim all empty lines before LS_DEF_NAME and EOF
1.137 parser 1596: end--;
1.206 paf 1597: if(end!=begin && pc.ls!=LS_USER_COMMENT) { // last piece still alive and not comment?
1598: if(!pc.string_start)
1599: pc.string_start=begin_pos;
1.59 paf 1600: // append it
1.206 paf 1601: pc.string.append_strdup_know_length(begin, end-begin);
1.30 paf 1602: }
1.59 paf 1603: }
1.206 paf 1604: if(!pc.string.is_empty()) { // something accumulated?
1605: // create STRING value: array of OP_VALUE+origin+vstring
1.278 moko 1606: #ifdef SYMBOLS_CACHING
1607: Value *lookup=symbols->get(pc.string);
1608: #else
1609: Value *lookup=0;
1610: #endif
1.281 moko 1611: *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 1612: // new pieces storage
1.206 paf 1613: pc.string.clear();
1614: pc.string_start.clear();
1.58 paf 1615: // make current result be pending for next call, return STRING for now
1.206 paf 1616: pc.pending_state=result; result=STRING;
1.58 paf 1617: }
1.67 paf 1618: if(skip_analized) {
1.206 paf 1619: pc.source+=skip_analized; pc.pos.col+=skip_analized;
1.1 paf 1620: }
1.58 paf 1621: return result;
1.1 paf 1622: }
1623:
1.264 moko 1624: static int real_yyerror(Parse_control *pc, const char *s) { // Called by yyparse on error
1.281 moko 1625: strncpy(PC.error, s, MAX_STRING);
1626: return 1;
1.110 paf 1627: }
1.1 paf 1628:
1.110 paf 1629: static void yyprint(FILE *file, int type, YYSTYPE value) {
1630: if(type==STRING)
1.206 paf 1631: fprintf(file, " \"%s\"", LA2S(*value)->cstr());
1.110 paf 1632: }
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