Annotation of parser3/src/main/compile.y, revision 1.305
1.168 parser 1: %{
1.105 paf 2: /** @file
1.106 paf 3: Parser: compiler(lexical parser and grammar).
4:
1.304 moko 5: Copyright (c) 2001-2026 Art. Lebedev Studio (https://www.artlebedev.com)
1.294 moko 6: Authors: Konstantin Morshnev <moko@design.ru>, Alexandr Petrosian <paf@design.ru>
1.217 paf 7:
1.262 moko 8:
1.88 paf 9: */
10:
1.305 ! moko 11: volatile const char * IDENT_COMPILE_Y = "$Id: compile.y,v 1.304 2026/04/25 13:38:46 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:
1.305 ! moko 42: // Windows headers define IN
! 43: #ifdef IN
! 44: #undef IN
! 45: #endif
! 46:
1.206 paf 47: // defines
48:
1.280 moko 49: #define CLASS_NAME "CLASS"
1.97 paf 50: #define USE_CONTROL_METHOD_NAME "USE"
1.226 misha 51: #define OPTIONS_CONTROL_METHOD_NAME "OPTIONS"
1.1 paf 52:
1.206 paf 53: // forwards
54:
1.264 moko 55: static int real_yyerror(Parse_control* pc, const char* s);
1.206 paf 56: static void yyprint(FILE* file, int type, YYSTYPE value);
57: static int yylex(YYSTYPE* lvalp, void* pc);
1.1 paf 58:
1.216 paf 59: static const VBool vfalse(false);
60: static const VBool vtrue(true);
1.261 moko 61: static const VString vempty;
1.216 paf 62:
1.8 paf 63: // local convinient inplace typecast & var
1.205 paf 64: #undef PC
1.271 moko 65: #define PC (*pc)
1.206 paf 66: #undef POOL
1.114 paf 67: #define POOL (*PC.pool)
1.107 paf 68: #ifndef DOXYGEN
1.265 moko 69:
1.296 moko 70: #define CLASS_ADD if(!PC.class_add()){ \
1.292 moko 71: PC.error=pa_strcat(PC.cclass->type(), " - class is already defined"); \
72: YYERROR; \
1.281 moko 73: }
74:
1.292 moko 75: #define YYERROR3(header, value, footer) { \
76: PC.error=pa_strcat(header, value, footer); \
77: YYERROR; \
78: }
79:
80: #define YYERROR1(value) { \
81: PC.error=value; \
82: YYERROR; \
1.265 moko 83: }
84:
1.1 paf 85: %}
86:
1.303 moko 87: %define api.pure
1.271 moko 88: %lex-param {Parse_control* pc}
89: %parse-param {Parse_control* pc}
1.1 paf 90:
1.13 paf 91: %token EON
1.4 paf 92: %token STRING
1.1 paf 93: %token BOGUS
1.55 paf 94:
1.58 paf 95: %token BAD_STRING_COMPARISON_OPERATOR
1.114 paf 96: %token BAD_HEX_LITERAL
1.171 parser 97: %token BAD_METHOD_DECL_START
1.193 paf 98: %token BAD_METHOD_PARAMETER_NAME_CHARACTER
1.58 paf 99:
1.59 paf 100: %token LAND "&&"
1.58 paf 101: %token LOR "||"
1.193 paf 102: %token LXOR "!||"
103: %token NXOR "!|"
1.58 paf 104:
105: %token NLE "<="
106: %token NGE ">="
107: %token NEQ "=="
108: %token NNE "!="
1.195 paf 109: %token NSL "<<"
110: %token NSR ">>"
1.58 paf 111:
112: %token SLT "lt"
113: %token SGT "gt"
114: %token SLE "le"
115: %token SGE "ge"
116: %token SEQ "eq"
117: %token SNE "ne"
118:
1.67 paf 119: %token DEF "def"
120: %token IN "in"
121: %token FEXISTS "-f"
1.127 paf 122: %token DEXISTS "-d"
1.95 paf 123: %token IS "is"
1.67 paf 124:
1.216 paf 125: %token LITERAL_TRUE "true"
126: %token LITERAL_FALSE "false"
127:
1.57 paf 128: /* logical */
1.193 paf 129: %left "!||"
1.57 paf 130: %left "||"
131: %left "&&"
1.131 paf 132: %left '<' '>' "<=" ">=" "lt" "gt" "le" "ge"
133: %left "==" "!=" "eq" "ne"
134: %left "is" "def" "in" "-f" "-d"
1.57 paf 135:
136: /* bitwise */
1.193 paf 137: %left "!|"
1.131 paf 138: %left '|'
139: %left '&'
1.202 paf 140: %left "<<" ">>"
1.57 paf 141:
1.56 paf 142: /* numerical */
1.202 paf 143: %left '+' '-'
144: %left '*' '/' '\\' '%'
145: %left NUNARY /* unary - + */
146:
147: /* out-of-group */
148: %left '~' /* bitwise */
149: %left '!' /* logical */
1.1 paf 150:
151: %%
1.195 paf 152: all:
1.10 paf 153: one_big_piece {
1.284 moko 154: 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 155: PC.cclass->set_method(PC.alias_method(main_method_name), method);
1.10 paf 156: }
157: | methods;
158:
159: methods: method | methods method;
160: one_big_piece: maybe_codes;
161:
1.34 paf 162: method: control_method | code_method;
163:
164: control_method: '@' STRING '\n'
1.132 paf 165: maybe_control_strings {
1.260 misha 166: const String& command=LA2S(*$2)->trim(String::TRIM_END);
1.34 paf 167: YYSTYPE strings_code=$4;
1.292 moko 168: if(strings_code->count()<1*OPERATIONS_PER_OPVALUE)
169: YYERROR3("@", command.cstr(), " is empty");
1.74 paf 170: if(command==CLASS_NAME) {
1.206 paf 171: if(strings_code->count()==1*OPERATIONS_PER_OPVALUE) {
1.265 moko 172: CLASS_ADD;
1.73 paf 173: // new class' name
1.260 misha 174: const String& name=LA2S(*strings_code)->trim(String::TRIM_END);
1.73 paf 175: // creating the class
1.288 moko 176: VStateless_class* cclass=new VClass(name.cstr(), PC.request.get_used_filespec(PC.file_no));
1.226 misha 177: PC.cclass_new=cclass;
1.266 misha 178: PC.append=false;
1.73 paf 179: } else {
1.298 moko 180: YYERROR1("@" CLASS_NAME " must contain only one line with class name (contains more than one)");
1.34 paf 181: }
1.130 paf 182: } else if(command==USE_CONTROL_METHOD_NAME) {
1.265 moko 183: CLASS_ADD;
1.273 moko 184: for(size_t i=0; i<strings_code->count(); i+=OPERATIONS_PER_OPVALUE){
1.288 moko 185: 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 186: }
1.130 paf 187: } else if(command==BASE_NAME) {
1.292 moko 188: if(PC.append)
189: YYERROR3("can't set base while appending methods to class '", PC.cclass->type(), "'");
1.265 moko 190: CLASS_ADD;
1.292 moko 191: if(PC.cclass->base_class()) // already changed from default?
192: YYERROR3("class already have a base '", PC.cclass->base_class()->type(), "'");
1.206 paf 193: if(strings_code->count()==1*OPERATIONS_PER_OPVALUE) {
1.260 misha 194: const String& base_name=LA2S(*strings_code)->trim(String::TRIM_END);
1.283 moko 195: if(VStateless_class *base_class=PC.request.get_class(base_name)) {
1.206 paf 196: // @CLASS == @BASE sanity check
1.292 moko 197: if(PC.cclass==base_class)
198: YYERROR1("@" CLASS_NAME " equals @" BASE_NAME);
1.283 moko 199: PC.cclass->get_class()->set_base(base_class);
1.206 paf 200: } else {
1.292 moko 201: YYERROR3("'", base_name.cstr(), "': undefined class in @" BASE_NAME);
1.73 paf 202: }
1.34 paf 203: } else {
1.292 moko 204: YYERROR1("@" BASE_NAME " must contain sole name");
1.34 paf 205: }
1.223 misha 206: } else if(command==OPTIONS_CONTROL_METHOD_NAME) {
207: for(size_t i=0; i<strings_code->count(); i+=OPERATIONS_PER_OPVALUE) {
1.260 misha 208: const String& option=LA2S(*strings_code, i)->trim(String::TRIM_END);
1.279 moko 209: if(option==Symbols::LOCALS_SYMBOL){
1.226 misha 210: PC.set_all_vars_local();
1.279 moko 211: } else if(option==Symbols::PARTIAL_SYMBOL){
1.230 misha 212: if(PC.cclass_new){
213: if(VStateless_class* existed=PC.get_existed_class(PC.cclass_new)){
1.292 moko 214: if(!PC.reuse_existed_class(existed))
215: YYERROR3("can't append methods to '", PC.cclass_new->type(), "' - the class wasn't marked as partial");
1.226 misha 216: } else {
1.256 misha 217: // marks the new class as partial. we will be able to add methods here later.
1.230 misha 218: PC.cclass_new->set_partial();
1.226 misha 219: }
1.230 misha 220: } else {
1.292 moko 221: YYERROR1("'partial' option should be used straight after @" CLASS_NAME);
1.226 misha 222: }
1.279 moko 223: } else if(option==Symbols::STATIC_SYMBOL){
1.256 misha 224: PC.set_methods_call_type(Method::CT_STATIC);
1.279 moko 225: } else if(option==Symbols::DYNAMIC_SYMBOL){
1.256 misha 226: PC.set_methods_call_type(Method::CT_DYNAMIC);
1.223 misha 227: } else {
1.292 moko 228: YYERROR3("'", option.cstr(), "' invalid option. valid options are 'partial', 'locals', 'static' and 'dynamic'");
1.223 misha 229: }
230: }
1.130 paf 231: } else {
1.292 moko 232: YYERROR3("'", command.cstr(), "' invalid special name. valid names are '" CLASS_NAME "', '" USE_CONTROL_METHOD_NAME "', '" BASE_NAME "' and '" OPTIONS_CONTROL_METHOD_NAME "'.");
1.34 paf 233: }
234: };
1.132 paf 235: maybe_control_strings: empty | control_strings;
1.259 misha 236: control_strings: control_string | control_strings control_string { $$=$1; P(*$$, *$2); };
1.37 paf 237: control_string: maybe_string '\n';
238: maybe_string: empty | STRING;
1.34 paf 239:
1.222 misha 240: code_method: '@' STRING bracketed_maybe_strings maybe_bracketed_strings maybe_comment '\n' {
1.265 moko 241: CLASS_ADD;
1.208 paf 242: PC.explicit_result=false;
1.10 paf 243:
244: YYSTYPE params_names_code=$3;
1.206 paf 245: ArrayString* params_names=0;
246: if(int size=params_names_code->count()) {
247: params_names=new ArrayString;
248: for(int i=0; i<size; i+=OPERATIONS_PER_OPVALUE)
249: *params_names+=LA2S(*params_names_code, i);
1.75 paf 250: }
1.10 paf 251:
252: YYSTYPE locals_names_code=$4;
1.206 paf 253: ArrayString* locals_names=0;
1.284 moko 254: bool all_vars_local=PC.cclass->is_vars_local();
255:
1.206 paf 256: if(int size=locals_names_code->count()) {
257: locals_names=new ArrayString;
1.208 paf 258: for(int i=0; i<size; i+=OPERATIONS_PER_OPVALUE) {
259: const String* local_name=LA2S(*locals_names_code, i);
1.279 moko 260: if(SYMBOLS_EQ(*local_name,RESULT_SYMBOL))
1.208 paf 261: PC.explicit_result=true;
1.279 moko 262: else if(SYMBOLS_EQ(*local_name,LOCALS_SYMBOL))
1.223 misha 263: all_vars_local=true;
1.208 paf 264: else
265: *locals_names+=local_name;
266: }
1.75 paf 267: }
1.10 paf 268:
1.208 paf 269: Method* method=new Method(
1.206 paf 270: //name,
1.257 misha 271: GetMethodCallType(PC, *$2),
1.81 paf 272: 0, 0/*min,max numbered_params_count*/,
1.76 paf 273: params_names, locals_names,
1.223 misha 274: 0/*to be filled later in next {} */, 0, all_vars_local);
1.221 misha 275:
1.208 paf 276: *reinterpret_cast<Method**>(&$$)=method;
1.222 misha 277: } maybe_codes {
1.251 misha 278: Method* method=reinterpret_cast<Method*>($7);
1.231 misha 279: // fill in the code
1.251 misha 280: method->parser_code=$8;
1.231 misha 281:
282: // register in class
283: const String& name=*LA2S(*$2);
1.251 misha 284: PC.cclass->set_method(PC.alias_method(name), method);
1.8 paf 285: };
1.10 paf 286:
287: maybe_bracketed_strings: empty | bracketed_maybe_strings;
1.259 misha 288: bracketed_maybe_strings: '[' maybe_strings ']' {$$=$2;};
1.10 paf 289: maybe_strings: empty | strings;
1.259 misha 290: strings: STRING | strings ';' STRING { $$=$1; P(*$$, *$3); };
1.10 paf 291:
292: maybe_comment: empty | STRING;
1.1 paf 293:
294: /* codes */
295:
1.10 paf 296: maybe_codes: empty | codes;
297:
1.259 misha 298: codes: code | codes code { $$=$1; P(*$$, *$2); };
1.81 paf 299: code: write_string | action;
1.209 paf 300: action: get | put | call;
1.1 paf 301:
302: /* get */
303:
1.64 paf 304: get: get_value {
1.238 misha 305: $$=N();
306: YYSTYPE code=$1;
1.247 misha 307: size_t count=code->count();
1.245 misha 308:
1.235 misha 309: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
1.281 moko 310: if(count!=3 || !change_first(*code, OP::OP_VALUE__GET_ELEMENT, /*=>*/OP::OP_VALUE__GET_ELEMENT__WRITE) )
1.238 misha 311: #endif
1.247 misha 312:
1.245 misha 313: #ifdef OPTIMIZE_BYTECODE_GET_SELF_ELEMENT
1.281 moko 314: if(count!=3 || !change_first(*code, OP::OP_WITH_SELF__VALUE__GET_ELEMENT, /*=>*/OP::OP_WITH_SELF__VALUE__GET_ELEMENT__WRITE) )
1.245 misha 315: #endif
316:
1.239 misha 317: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_ELEMENT
1.281 moko 318: if(count!=5 || !change_first(*code, OP::OP_GET_OBJECT_ELEMENT, /*=>*/OP::OP_GET_OBJECT_ELEMENT__WRITE) )
1.239 misha 319: #endif
320:
321: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_VAR_ELEMENT
1.281 moko 322: if(count!=5 || !change_first(*code, OP::OP_GET_OBJECT_VAR_ELEMENT, /*=>*/OP::OP_GET_OBJECT_VAR_ELEMENT__WRITE) )
1.238 misha 323: #endif
1.267 misha 324:
325: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT__SPECIAL
1.281 moko 326: if(!change(*code, count-1/* last */, OP::OP_GET_ELEMENT__SPECIAL, /*=>*/OP::OP_GET_ELEMENT__SPECIAL__WRITE) )
1.267 misha 327: #endif
328:
1.247 misha 329: {
1.281 moko 330: change_or_append(*code, count-1 /* last */, OP::OP_GET_ELEMENT, /*=>*/OP::OP_GET_ELEMENT__WRITE, /*or */OP::OP_WRITE_VALUE ); /* value=pop; wcontext.write(value) */
1.246 misha 331: }
1.247 misha 332:
1.238 misha 333: P(*$$, *code);
1.1 paf 334: };
1.259 misha 335: get_value: '$' get_name_value { $$=$2; };
1.64 paf 336: get_name_value: name_without_curly_rdive EON | name_in_curly_rdive;
1.259 misha 337: name_in_curly_rdive: '{' name_without_curly_rdive '}' { $$=$2; };
1.44 paf 338: name_without_curly_rdive:
339: name_without_curly_rdive_read
340: | name_without_curly_rdive_class;
1.19 paf 341: name_without_curly_rdive_read: name_without_curly_rdive_code {
1.206 paf 342: $$=N();
1.238 misha 343: YYSTYPE diving_code=$1;
1.239 misha 344: size_t count=diving_code->count();
1.247 misha 345:
346: if(maybe_make_self(*$$, *diving_code, count)) {
347: // $self.
348: } else
1.239 misha 349:
350: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_ELEMENT
1.247 misha 351: if(maybe_make_get_object_element(*$$, *diving_code, count)){
1.245 misha 352: // optimization for $object.field + ^object.method[
1.247 misha 353: } else
1.238 misha 354: #endif
1.239 misha 355:
356: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_VAR_ELEMENT
1.247 misha 357: if(maybe_make_get_object_var_element(*$$, *diving_code, count)){
1.245 misha 358: // optimization for $object.$var
1.247 misha 359: } else
1.238 misha 360: #endif
1.239 misha 361:
362: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
1.281 moko 363: if(count>=4 && (*diving_code)[0].code==OP::OP_VALUE && (*diving_code)[3].code==OP::OP_GET_ELEMENT ){
1.248 misha 364: // optimization
1.239 misha 365: O(*$$,
1.247 misha 366: (PC.in_call_value && count==4)
1.239 misha 367: ? OP::OP_VALUE__GET_ELEMENT_OR_OPERATOR // ^object[ : OP_VALUE+origin+string+OP_GET_ELEMENT => OP_VALUE__GET_ELEMENT_OR_OPERATOR+origin+string
368: : OP::OP_VALUE__GET_ELEMENT // $object : OP_VALUE+origin+string+OP_GET_ELEMENT => OP_VALUE__GET_ELEMENT+origin+string
369: );
370: P(*$$, *diving_code, 1/*offset*/, 2/*limit*/); // copy origin+value
1.247 misha 371: if(count>4)
372: P(*$$, *diving_code, 4); // copy tail
1.239 misha 373: } else {
374: O(*$$, OP::OP_WITH_READ); /* stack: starting context */
375: P(*$$, *diving_code);
376: }
1.233 misha 377: #else
1.247 misha 378: {
1.238 misha 379: O(*$$, OP::OP_WITH_READ); /* stack: starting context */
1.179 paf 380:
1.238 misha 381: // ^if OP_ELEMENT => ^if OP_ELEMENT_OR_OPERATOR
382: // optimized OP_VALUE+origin+string+OP_GET_ELEMENT. => OP_VALUE+origin+string+OP_GET_ELEMENT_OR_OPERATOR.
1.239 misha 383: if(PC.in_call_value && count==4)
384: diving_code->put(count-1, OP::OP_GET_ELEMENT_OR_OPERATOR);
1.206 paf 385: P(*$$, *diving_code);
1.239 misha 386: }
1.233 misha 387: #endif
1.22 paf 388: /* diving code; stack: current context */
1.1 paf 389: };
1.259 misha 390: name_without_curly_rdive_class: class_prefix name_without_curly_rdive_code { $$=$1; P(*$$, *$2); };
391: name_without_curly_rdive_code: name_advance2 | name_path name_advance2 { $$=$1; P(*$$, *$2); };
1.1 paf 392:
393: /* put */
394:
1.81 paf 395: put: '$' name_expr_wdive construct {
1.241 misha 396: $$=N();
1.244 misha 397: #ifdef OPTIMIZE_BYTECODE_CONSTRUCT
398: if(maybe_optimize_construct(*$$, *$2, *$3)){
1.246 misha 399: // $a(expr), $.a(expr), $a[value], $.a[value], $self.a[value], $self.a(expr)
1.241 misha 400: } else
401: #endif
402: {
403: P(*$$, *$2); /* stack: context,name */
404: P(*$$, *$3); /* stack: context,name,constructor_value */
405: }
1.20 paf 406: };
1.44 paf 407: name_expr_wdive:
1.157 parser 408: name_expr_wdive_root
409: | name_expr_wdive_write
1.44 paf 410: | name_expr_wdive_class;
1.157 parser 411: name_expr_wdive_root: name_expr_dive_code {
1.206 paf 412: $$=N();
1.238 misha 413: YYSTYPE diving_code=$1;
1.247 misha 414: size_t count=diving_code->count();
415:
416: if(maybe_make_self(*$$, *diving_code, count)) {
417: // $self.
418: } else
419: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
1.281 moko 420: if(count>=4 && (*diving_code)[0].code==OP::OP_VALUE && (*diving_code)[3].code==OP::OP_GET_ELEMENT ){
1.247 misha 421: O(*$$, OP::OP_WITH_ROOT__VALUE__GET_ELEMENT);
422: P(*$$, *diving_code, 1/*offset*/, 2/*limit*/); // copy origin+value
423: if(count>4)
424: P(*$$, *diving_code, 4); // tail
425: } else
426: #endif
427: {
1.229 misha 428: O(*$$, OP::OP_WITH_ROOT); /* stack: starting context */
1.206 paf 429: P(*$$, *diving_code);
1.23 paf 430: }
431: /* diving code; stack: current context */
1.156 parser 432: };
1.157 parser 433: name_expr_wdive_write: '.' name_expr_dive_code {
1.206 paf 434: $$=N();
1.229 misha 435: O(*$$, OP::OP_WITH_WRITE); /* stack: starting context */
1.206 paf 436: P(*$$, *$2); /* diving code; stack: context,name */
1.20 paf 437: };
1.259 misha 438: name_expr_wdive_class: class_prefix name_expr_dive_code { $$=$1; P(*$$, *$2); };
1.20 paf 439:
1.244 misha 440: construct:
1.163 parser 441: construct_square
442: | construct_round
443: | construct_curly
1.149 parser 444: ;
1.211 paf 445: construct_square: '[' {
446: // allow $result_or_other_variable[ letters here any time ]
447: *reinterpret_cast<bool*>(&$$)=PC.explicit_result; PC.explicit_result=false;
1.297 moko 448: PC.array=false; // no need to save current value as if() is right after PC.array=true;
449: } any_constructor_code_values {
1.213 paf 450: PC.explicit_result=*reinterpret_cast<bool*>(&$2);
1.211 paf 451: } ']' {
1.149 parser 452: // stack: context, name
1.297 moko 453: if(!PC.array){
454: $$=$3; // stack: context, name, value
455: O(*$$, OP::OP_CONSTRUCT_VALUE); /* value=pop; name=pop; context=pop; construct(context,name,value) */
456: } else {
457: $$ = N();
458: OA(*$$, OP::OP_CONSTRUCT_ARRAY, $3);
459: PC.array=false;
460: }
1.81 paf 461: }
462: ;
1.297 moko 463: any_constructor_code_values:
464: any_constructor_code_value { $$ = $1; }
465: | any_constructor_code_values ';' any_constructor_code_value { $$ = $1; P(*$$, *$3); PC.array=true; };
466: ;
1.149 parser 467: construct_round: '(' expr_value ')' {
1.206 paf 468: $$=N();
1.149 parser 469: // stack: context, name
1.206 paf 470: P(*$$, *$2); // stack: context, name, value
1.229 misha 471: O(*$$, OP::OP_CONSTRUCT_EXPR); /* value=pop->as_expr_result; name=pop; context=pop; construct(context,name,value) */
1.81 paf 472: }
1.52 paf 473: ;
1.149 parser 474: construct_curly: '{' maybe_codes '}' {
475: // stack: context, name
1.206 paf 476: $$=N();
1.229 misha 477: OA(*$$, OP::OP_CURLY_CODE__CONSTRUCT, $2); /* code=pop; name=pop; context=pop; construct(context,name,junction(code)) */
1.149 parser 478: };
479:
1.55 paf 480: any_constructor_code_value:
1.261 moko 481: empty_value /* optimized $var[] case */
1.52 paf 482: | STRING /* optimized $var[STRING] case */
1.55 paf 483: | constructor_code_value /* $var[something complex] */
1.1 paf 484: ;
1.55 paf 485: constructor_code_value: constructor_code {
1.206 paf 486: $$=N();
1.229 misha 487: OA(*$$, OP::OP_OBJECT_POOL, $1); /* stack: empty write context */
1.183 paf 488: /* some code that writes to that context */
489: /* context=pop; stack: context.value() */
1.1 paf 490: };
1.55 paf 491: constructor_code: codes__excluding_sole_str_literal;
1.259 misha 492: codes__excluding_sole_str_literal: action | code codes { $$=$1; P(*$$, *$2); };
1.27 paf 493:
1.1 paf 494: /* call */
495:
1.66 paf 496: call: call_value {
1.267 misha 497: size_t count=$1->count();
1.238 misha 498: #ifdef OPTIMIZE_BYTECODE_CUT_REM_OPERATOR
1.267 misha 499: if(count)
1.238 misha 500: #endif
501: {
502: $$=$1; /* stack: value */
1.281 moko 503: if(!change_first(*$$, OP::OP_CONSTRUCT_OBJECT, /*=>*/ OP::OP_CONSTRUCT_OBJECT__WRITE))
504: change_or_append(*$$, count-2 /* second last */, OP::OP_CALL, /*=>*/ OP::OP_CALL__WRITE, /*or */ OP::OP_WRITE_VALUE); /* value=pop; wcontext.write(value) */
1.238 misha 505: }
1.66 paf 506: };
1.177 paf 507: call_value: '^' {
1.281 moko 508: PC.in_call_value=true;
509: }
510: call_name {
511: PC.in_call_value=false;
512: }
513: store_params EON { /* ^field.$method{vasya} */
1.238 misha 514: #ifdef OPTIMIZE_BYTECODE_CUT_REM_OPERATOR
1.242 misha 515: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
1.238 misha 516: const String* operator_name=LA2S(*$3, 0, OP::OP_VALUE__GET_ELEMENT_OR_OPERATOR);
1.242 misha 517: #else
518: const String* operator_name=LA2S(*$3, 1);
519: #endif
1.279 moko 520: if(operator_name && SYMBOLS_EQ(*operator_name,REM_SYMBOL)){
1.238 misha 521: $$=N();
522: } else
523: #endif
524: {
525: YYSTYPE params_code=$5;
526: if(params_code->count()==3) { // probably [] case. [OP::OP_VALUE+origin+Void]
527: if(Value* value=LA2V(*params_code)) // it is OP_VALUE+origin+value?
1.261 moko 528: if(const String * string=value->get_string())
529: if(string->is_empty()) // value is empty string?
530: params_code=0; // ^zzz[] case. don't append lone empty param.
1.238 misha 531: }
532: /* stack: context, method_junction */
1.249 misha 533:
534: YYSTYPE var_code=$3;
535: if(
536: var_code->count()==8
1.282 moko 537: && ( (*var_code)[0].code==OP::OP_VALUE__GET_CLASS || (*var_code)[0].code==OP::OP_VALUE__GET_BASE_CLASS )
1.249 misha 538: && (*var_code)[3].code==OP::OP_PREPARE_TO_CONSTRUCT_OBJECT
539: && (*var_code)[4].code==OP::OP_VALUE
1.272 moko 540: #ifdef FEATURE_GET_ELEMENT4CALL
541: && (*var_code)[7].code==OP::OP_GET_ELEMENT4CALL
542: #else
1.249 misha 543: && (*var_code)[7].code==OP::OP_GET_ELEMENT
1.272 moko 544: #endif
1.249 misha 545: ){
1.267 misha 546: $$=N();
1.249 misha 547: O(*$$, OP::OP_CONSTRUCT_OBJECT);
548: P(*$$, *var_code, 1/*offset*/, 2/*limit*/); // class name
549: P(*$$, *var_code, 5/*offset*/, 2/*limit*/); // constructor name
550: OA(*$$, params_code);
551: } else
552: {
553: $$=var_code; /* with_xxx,diving code; stack: context,method_junction */
554: OA(*$$, OP::OP_CALL, params_code); // method_frame=make frame(pop junction); ncontext=pop; call(ncontext,method_frame) stack: value
555: }
1.238 misha 556: }
1.1 paf 557: };
558:
1.272 moko 559: call_name: name_without_curly_rdive {
560: #ifdef FEATURE_GET_ELEMENT4CALL
561: size_t count=$1->count();
562: if(count){
563: $$=$1;
564: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_ELEMENT
565: !(count==5 && change_first(*$$, OP::OP_GET_OBJECT_ELEMENT, OP::OP_GET_OBJECT_ELEMENT4CALL)) &&
566: #endif
567: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_VAR_ELEMENT
568: !(count==5 && change_first(*$$, OP::OP_GET_OBJECT_VAR_ELEMENT, OP::OP_GET_OBJECT_VAR_ELEMENT4CALL)) &&
569: #endif
570: !change(*$$, count-1, OP::OP_GET_ELEMENT, OP::OP_GET_ELEMENT4CALL);
571: }
572: #endif
573: };
1.38 paf 574:
1.259 misha 575: store_params: store_param | store_params store_param { $$=$1; P(*$$, *$2); };
1.69 paf 576: store_param:
577: store_square_param
578: | store_round_param
579: | store_curly_param
1.31 paf 580: ;
1.210 paf 581: store_square_param: '[' {
1.211 paf 582: // allow ^call[ letters here any time ]
1.210 paf 583: *reinterpret_cast<bool*>(&$$)=PC.explicit_result; PC.explicit_result=false;
584: } store_code_param_parts {
1.213 paf 585: PC.explicit_result=*reinterpret_cast<bool*>(&$2);
1.259 misha 586: } ']' {$$=$3;};
587: store_round_param: '(' store_expr_param_parts ')' {$$=$2;};
588: store_curly_param: '{' store_curly_param_parts '}' {$$=$2;};
1.69 paf 589: store_code_param_parts:
590: store_code_param_part
1.259 misha 591: | store_code_param_parts ';' store_code_param_part { $$=$1; P(*$$, *$3); }
1.69 paf 592: ;
593: store_expr_param_parts:
594: store_expr_param_part
1.259 misha 595: | store_expr_param_parts ';' store_expr_param_part { $$=$1; P(*$$, *$3); }
1.69 paf 596: ;
1.94 paf 597: store_curly_param_parts:
598: store_curly_param_part
1.259 misha 599: | store_curly_param_parts ';' store_curly_param_part { $$=$1; P(*$$, *$3); }
1.94 paf 600: ;
1.120 paf 601: store_code_param_part: code_param_value {
1.32 paf 602: $$=$1;
1.120 paf 603: };
1.214 paf 604: store_expr_param_part: expr_value {
605: YYSTYPE expr_code=$1;
1.215 paf 606: if(expr_code->count()==3
1.234 misha 607: && (*expr_code)[0].code==OP::OP_VALUE) { // optimizing (double/bool/incidently 'string' too) case. [OP::OP_VALUE+origin+Double]. no evaluating
1.214 paf 608: $$=expr_code;
609: } else {
1.238 misha 610: YYSTYPE code=N();
1.214 paf 611: P(*code, *expr_code);
1.229 misha 612: O(*code, OP::OP_WRITE_EXPR_RESULT);
1.214 paf 613: $$=N();
1.229 misha 614: OA(*$$, OP::OP_EXPR_CODE__STORE_PARAM, code);
1.214 paf 615: }
1.69 paf 616: };
1.94 paf 617: store_curly_param_part: maybe_codes {
1.206 paf 618: $$=N();
1.229 misha 619: OA(*$$, OP::OP_CURLY_CODE__STORE_PARAM, $1);
1.94 paf 620: };
1.120 paf 621: code_param_value:
1.261 moko 622: empty_value /* optimized [;...] case */
1.120 paf 623: | STRING /* optimized [STRING] case */
624: | constructor_code_value /* [something complex] */
625: ;
1.1 paf 626:
627: /* name */
628:
1.259 misha 629: name_expr_dive_code: name_expr_value | name_path name_expr_value { $$=$1; P(*$$, *$2); };
1.1 paf 630:
1.259 misha 631: name_path: name_step | name_path name_step { $$=$1; P(*$$, *$2); };
1.1 paf 632: name_step: name_advance1 '.';
633: name_advance1: name_expr_value {
1.177 paf 634: // we know that name_advance1 not called from ^xxx context
635: // so we'll not check for operator call possibility as we do in name_advance2
636:
1.1 paf 637: /* stack: context */
638: $$=$1; /* stack: context,name */
1.267 misha 639: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT__SPECIAL
640: O(*$$, is_special_element(*$$) ? OP::OP_GET_ELEMENT__SPECIAL : OP::OP_GET_ELEMENT);
641: #else
1.229 misha 642: O(*$$, OP::OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */
1.267 misha 643: #endif
1.1 paf 644: };
645: name_advance2: name_expr_value {
646: /* stack: context */
647: $$=$1; /* stack: context,name */
1.267 misha 648: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT__SPECIAL
649: O(*$$, is_special_element(*$$) ? OP::OP_GET_ELEMENT__SPECIAL : OP::OP_GET_ELEMENT);
650: #else
1.229 misha 651: O(*$$, OP::OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */
1.267 misha 652: #endif
1.1 paf 653: }
1.4 paf 654: | STRING BOGUS
1.1 paf 655: ;
656: name_expr_value:
1.4 paf 657: STRING /* subname_is_const */
1.1 paf 658: | name_expr_subvar_value /* $subname_is_var_value */
1.160 parser 659: | name_expr_with_subvar_value /* xxx$part_of_subname_is_var_value */
1.166 parser 660: | name_square_code_value /* [codes] */
1.301 moko 661: | name_round_expr_value /* (expr) */
1.1 paf 662: ;
663: name_expr_subvar_value: '$' subvar_ref_name_rdive {
664: $$=$2;
1.229 misha 665: O(*$$, OP::OP_GET_ELEMENT);
1.1 paf 666: };
1.4 paf 667: name_expr_with_subvar_value: STRING subvar_get_writes {
1.238 misha 668: YYSTYPE code;
1.183 paf 669: {
1.206 paf 670: change_string_literal_to_write_string_literal(*(code=$1));
671: P(*code, *$2);
1.183 paf 672: }
1.206 paf 673: $$=N();
1.229 misha 674: OA(*$$, OP::OP_STRING_POOL, code);
1.1 paf 675: };
1.212 paf 676: name_square_code_value: '[' {
677: // allow $result_or_other_variable[ letters here any time ]
678: *reinterpret_cast<bool*>(&$$)=PC.explicit_result; PC.explicit_result=false;
679: } codes {
1.213 paf 680: PC.explicit_result=*reinterpret_cast<bool*>(&$2);
1.212 paf 681: } ']' {
1.302 moko 682: $$=N();
683: if(!maybe_append_simple_diving_code(*$$, *$3)) {
1.281 moko 684: OA(*$$, OP::OP_OBJECT_POOL, $3); /* stack: empty write context */
685: /* some code that writes to that context */
686: /* context=pop; stack: context.value() */
1.267 misha 687: }
1.160 parser 688: };
1.301 moko 689: name_round_expr_value: '(' expr_value ')' {
690: $$ = N();
691: P(*$$, *$2);
692: };
1.154 parser 693: subvar_ref_name_rdive: STRING {
1.206 paf 694: $$=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(*$$, *new String(base->type()));
1.189 paf 714: } else {
1.292 moko 715: YYERROR1("no base class declared");
1.189 paf 716: }
1.282 moko 717: code = OP::OP_VALUE__GET_BASE_CLASS;
718: } else {
1.283 moko 719: // can't use get_class because it will call @autouse[] if the class wasn't loaded
720: VStateless_class* base=PC.request.classes().get(*LA2S(*$$));
721: if(base && PC.cclass->derived_from(*base))
1.282 moko 722: code = OP::OP_VALUE__GET_BASE_CLASS;
1.189 paf 723: }
1.238 misha 724: // optimized OP_VALUE+origin+string+OP_GET_CLASS => OP_VALUE__GET_CLASS+origin+string
1.282 moko 725: change_first(*$$, OP::OP_VALUE, code);
1.155 parser 726: };
727: class_constructor_prefix: class_static_prefix ':' {
1.154 parser 728: $$=$1;
1.292 moko 729: if(!PC.in_call_value)
730: YYERROR1(":: not allowed here");
1.229 misha 731: O(*$$, OP::OP_PREPARE_TO_CONSTRUCT_OBJECT);
1.1 paf 732: };
733:
1.53 paf 734:
1.56 paf 735: /* expr */
1.53 paf 736:
1.214 paf 737: expr_value: expr;
1.56 paf 738: expr:
1.214 paf 739: double_or_STRING
1.216 paf 740: | true_value
741: | false_value
1.64 paf 742: | get_value
1.66 paf 743: | call_value
1.259 misha 744: | '"' string_inside_quotes_value '"' { $$ = $2; }
745: | '\'' string_inside_quotes_value '\'' { $$ = $2; }
1.60 paf 746: | '(' expr ')' { $$ = $2; }
747: /* stack: operand // stack: @operand */
1.259 misha 748: | '-' expr %prec NUNARY { $$=$2; O(*$$, OP::OP_NEG); }
749: | '+' expr %prec NUNARY { $$=$2; }
750: | '~' expr { $$=$2; O(*$$, OP::OP_INV); }
751: | '!' expr { $$=$2; O(*$$, OP::OP_NOT); }
752: | "def" expr { $$=$2; O(*$$, OP::OP_DEF); }
753: | "in" expr { $$=$2; O(*$$, OP::OP_IN); }
754: | "-f" expr { $$=$2; O(*$$, OP::OP_FEXISTS); }
755: | "-d" expr { $$=$2; O(*$$, OP::OP_DEXISTS); }
1.60 paf 756: /* stack: a,b // stack: a@b */
1.259 misha 757: | expr '-' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_SUB); }
758: | expr '+' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_ADD); }
759: | expr '*' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_MUL); }
760: | expr '/' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_DIV); }
761: | expr '%' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_MOD); }
762: | expr '\\' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_INTDIV); }
763: | expr "<<" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_SL); }
764: | expr ">>" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_SR); }
765: | expr '&' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_AND); }
766: | expr '|' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_OR); }
767: | expr "!|" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_XOR); }
768: | expr "&&" expr { $$=$1; OA(*$$, OP::OP_NESTED_CODE, $3); O(*$$, OP::OP_LOG_AND); }
769: | expr "||" expr { $$=$1; OA(*$$, OP::OP_NESTED_CODE, $3); O(*$$, OP::OP_LOG_OR); }
770: | expr "!||" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_LOG_XOR); }
771: | expr '<' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_LT); }
772: | expr '>' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_GT); }
773: | expr "<=" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_LE); }
774: | expr ">=" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_GE); }
775: | expr "==" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_EQ); }
776: | expr "!=" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_NE); }
777: | expr "lt" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_LT); }
778: | expr "gt" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_GT); }
779: | expr "le" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_LE); }
780: | expr "ge" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_GE); }
781: | expr "eq" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_EQ); }
782: | expr "ne" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_NE); }
783: | expr "is" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_IS); }
1.56 paf 784: ;
1.214 paf 785:
786: double_or_STRING: STRING {
1.238 misha 787: // optimized OP_STRING => OP_VALUE for doubles
1.214 paf 788: maybe_change_string_literal_to_double_literal(*($$=$1));
789: };
1.55 paf 790:
1.65 paf 791: string_inside_quotes_value: maybe_codes {
1.238 misha 792: #ifdef OPTIMIZE_BYTECODE_STRING_POOL
793: // it brakes ^if(" 09 "){...}
794: YYSTYPE code=$1;
795: $$=N();
1.267 misha 796: if(code->count()==3 && change_first(*code, OP::OP_STRING__WRITE, OP::OP_VALUE)){
1.238 misha 797: // optimized OP_STRING__WRITE+origin+value => OP_VALUE+origin+value without starting OP_STRING_POOL
798: P(*$$, *code);
799: } else {
800: OA(*$$, OP::OP_STRING_POOL, code); /* stack: empty write context */
801: }
802: #else
1.206 paf 803: $$=N();
1.229 misha 804: OA(*$$, OP::OP_STRING_POOL, $1); /* stack: empty write context */
1.238 misha 805: #endif
1.183 paf 806: /* some code that writes to that context */
807: /* context=pop; stack: context.get_string() */
1.53 paf 808: };
1.1 paf 809:
1.27 paf 810: /* basics */
1.1 paf 811:
1.81 paf 812: write_string: STRING {
1.238 misha 813: // optimized OP_STRING+OP_WRITE_VALUE => OP_STRING__WRITE
1.259 misha 814: change_string_literal_to_write_string_literal(*($$=$1));
1.54 paf 815: };
816:
1.261 moko 817: empty_value: /* empty */ { $$=VL(/*we know that we will not change it*/const_cast<VString*>(&vempty), 0, 0, 0); }
1.259 misha 818: true_value: "true" { $$ = VL(/*we know that we will not change it*/const_cast<VBool*>(&vtrue), 0, 0, 0); }
819: false_value: "false" { $$ = VL(/*we know that we will not change it*/const_cast<VBool*>(&vfalse), 0, 0, 0); }
1.216 paf 820:
1.259 misha 821: empty: /* empty */ { $$=N(); };
1.1 paf 822:
823: %%
1.105 paf 824: #endif
1.1 paf 825:
826: /*
827: 000$111(2222)00
828: 000$111{3333}00
1.9 paf 829: $,^: push,=0
1.1 paf 830: 1:( { break=pop
831: 2:( ) pop
832: 3:{ } pop
833:
834: 000^111(2222)4444{33333}4000
1.9 paf 835: $,^: push,=0
1.1 paf 836: 1:( { break=pop
837: 2:( )=4
838: 3:{ }=4
839: 4:[^({]=pop
840: */
841:
1.206 paf 842: inline void ungetc(Parse_control& pc, uint last_line_end_col) {
843: pc.source--;
844: if(pc.pos.col==0) {
845: --pc.pos.line; pc.pos.col=last_line_end_col;
846: } else
847: --pc.pos.col;
848:
849: }
850: static int yylex(YYSTYPE *lvalp, void *apc) {
1.295 moko 851: Parse_control& pc=*static_cast<Parse_control*>(apc);
1.206 paf 852:
853: #define lexical_brackets_nestage pc.brackets_nestages[pc.ls_sp]
1.48 paf 854: #define RC {result=c; goto break2; }
1.1 paf 855:
1.295 moko 856: int c;
1.206 paf 857: int result;
1.1 paf 858:
1.206 paf 859: if(pc.pending_state) {
860: result=pc.pending_state;
861: pc.pending_state=0;
1.1 paf 862: return result;
863: }
864:
1.206 paf 865: const char *begin=pc.source;
866: Pos begin_pos=pc.pos;
1.91 paf 867: const char *end;
1.67 paf 868: int skip_analized=0;
1.50 paf 869: while(true) {
1.206 paf 870: c=*(end=(pc.source++));
871: // fprintf(stderr, "\nchar: %c %02X; nestage: %d, sp=%d", c, c, lexical_brackets_nestage, pc.sp);
1.1 paf 872:
1.208 paf 873: if(c=='\n')
1.206 paf 874: pc.pos_next_line();
1.208 paf 875: else
1.206 paf 876: pc.pos_next_c(c);
1.208 paf 877: // fprintf(stderr, "\nchar: %c file(%d:%d)", c, pc.pos.line, pc.pos.col);
1.73 paf 878:
1.208 paf 879: if(pc.pos.col==0+1 && c=='@') {
1.206 paf 880: if(pc.ls==LS_DEF_SPECIAL_BODY) {
1.175 paf 881: // @SPECIAL
882: // ...
883: // @<here =
1.206 paf 884: pop_LS(pc); // exiting from LS_DEF_SPECIAL_BODY state
1.175 paf 885: } // continuing checks
1.206 paf 886: if(pc.ls==LS_USER) {
887: push_LS(pc, LS_DEF_NAME);
1.171 parser 888: RC;
1.175 paf 889: } else // @ in first column inside some code [when could that be?]
1.171 parser 890: result=BAD_METHOD_DECL_START;
891: goto break2;
1.209 paf 892: }
893: if(c=='^') {
1.206 paf 894: if(pc.ls==LS_METHOD_AFTER) {
1.203 paf 895: // handle after-method situation
1.206 paf 896: pop_LS(pc);
1.203 paf 897: result=EON;
898: skip_analized=-1; // return to punctuation afterwards to assure it's literality
899: goto break2;
900: }
1.206 paf 901: switch(pc.ls) {
1.169 parser 902: case LS_EXPRESSION_VAR_NAME_WITH_COLON:
903: case LS_EXPRESSION_VAR_NAME_WITHOUT_COLON:
904: case LS_VAR_NAME_SIMPLE_WITH_COLON:
905: case LS_VAR_NAME_SIMPLE_WITHOUT_COLON:
906: case LS_VAR_NAME_CURLY:
907: case LS_METHOD_NAME:
1.194 paf 908: case LS_USER_COMMENT:
1.169 parser 909: case LS_DEF_COMMENT:
910: // no literals in names, please
911: break;
912: default:
1.206 paf 913: switch(*pc.source) {
1.165 parser 914: // ^escaping some punctuators
1.228 misha 915: case '^': case '$': case ';': case '@':
1.126 paf 916: case '(': case ')':
1.48 paf 917: case '[': case ']':
918: case '{': case '}':
1.172 parser 919: case '"': case ':':
1.40 paf 920: if(end!=begin) {
1.206 paf 921: if(!pc.string_start)
922: pc.string_start=begin_pos;
1.40 paf 923: // append piece till ^
1.206 paf 924: pc.string.append_strdup_know_length(begin, end-begin);
1.40 paf 925: }
1.63 paf 926: // reset piece 'begin' position & line
1.206 paf 927: begin=pc.source; // ->punctuation
928: begin_pos=pc.pos;
1.203 paf 929: // skip over _ after ^
1.206 paf 930: pc.source++; pc.pos.col++;
1.203 paf 931: // skip analysis = forced literal
932: continue;
1.114 paf 933:
934: // converting ^#HH into char(hex(HH))
935: case '#':
936: if(end!=begin) {
1.206 paf 937: if(!pc.string_start)
938: pc.string_start=begin_pos;
1.114 paf 939: // append piece till ^
1.206 paf 940: pc.string.append_strdup_know_length(begin, end-begin);
1.114 paf 941: }
942: // #HH ?
1.228 misha 943: if(pc.source[1] && isxdigit(pc.source[1]) && pc.source[2] && isxdigit(pc.source[2])) {
1.218 paf 944: char c=(char)(
1.206 paf 945: hex_value[(unsigned char)pc.source[1]]*0x10+
1.218 paf 946: hex_value[(unsigned char)pc.source[2]]);
1.206 paf 947: if(c==0) {
1.114 paf 948: result=BAD_HEX_LITERAL;
949: goto break2; // wrong hex value[no ^#00 chars allowed]: bail out
950: }
951: // append char(hex(HH))
1.206 paf 952: pc.string.append(c);
1.114 paf 953: // skip over ^#HH
1.206 paf 954: pc.source+=3;
955: pc.pos.col+=3;
1.114 paf 956: // reset piece 'begin' position & line
1.206 paf 957: begin=pc.source; // ->after ^#HH
958: begin_pos=pc.pos;
1.203 paf 959: // skip analysis = forced literal
1.114 paf 960: continue;
961: }
1.228 misha 962: // just escaped char
963: // reset piece 'begin' position & line
964: begin=pc.source;
965: begin_pos=pc.pos;
966: // skip over _ after ^
967: pc.source++; pc.pos.col++;
968: // skip analysis = forced literal
969: continue;
1.1 paf 970: }
1.169 parser 971: break;
1.203 paf 972: }
1.169 parser 973: }
1.113 paf 974: // #comment start skipping
1.206 paf 975: if(c=='#' && pc.pos.col==1) {
1.112 paf 976: if(end!=begin) {
1.206 paf 977: if(!pc.string_start)
978: pc.string_start=begin_pos;
1.112 paf 979: // append piece till #
1.206 paf 980: pc.string.append_strdup_know_length(begin, end-begin);
1.112 paf 981: }
982: // fall into COMMENT lexical state [wait for \n]
1.206 paf 983: push_LS(pc, LS_USER_COMMENT);
1.175 paf 984: continue;
1.112 paf 985: }
1.206 paf 986: switch(pc.ls) {
1.10 paf 987:
988: // USER'S = NOT OURS
1.1 paf 989: case LS_USER:
1.206 paf 990: case LS_NAME_SQUARE_PART: // name.[here].xxx
991: if(pc.trim_bof)
1.153 parser 992: switch(c) {
993: case '\n': case ' ': case '\t':
1.206 paf 994: begin=pc.source;
995: begin_pos=pc.pos;
1.152 parser 996: continue; // skip it
1.153 parser 997: default:
1.206 paf 998: pc.trim_bof=false;
1.152 parser 999: }
1.48 paf 1000: switch(c) {
1001: case '$':
1.206 paf 1002: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1003: RC;
1004: case '^':
1.206 paf 1005: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1006: RC;
1.166 parser 1007: case ']':
1.206 paf 1008: if(pc.ls==LS_NAME_SQUARE_PART)
1.166 parser 1009: if(--lexical_brackets_nestage==0) {// $name.[co<]?>de<]?>
1.206 paf 1010: pop_LS(pc); // $name.[co<]>de<]!>
1.166 parser 1011: RC;
1012: }
1.160 parser 1013: break;
1.166 parser 1014: case '[': // $name.[co<[>de]
1.206 paf 1015: if(pc.ls==LS_NAME_SQUARE_PART)
1.166 parser 1016: lexical_brackets_nestage++;
1.161 parser 1017: break;
1.112 paf 1018: }
1.209 paf 1019: if(pc.explicit_result && c)
1020: switch(c) {
1.276 moko 1021: default:
1022: pc.string.append(c);
1.209 paf 1023: case '\n': case ' ': case '\t':
1024: begin=pc.source;
1025: begin_pos=pc.pos;
1.276 moko 1026: continue;
1.209 paf 1027: }
1.112 paf 1028: break;
1029:
1030: // #COMMENT
1.194 paf 1031: case LS_USER_COMMENT:
1.112 paf 1032: if(c=='\n') {
1033: // skip comment
1.206 paf 1034: begin=pc.source;
1035: begin_pos=pc.pos;
1.112 paf 1036:
1.206 paf 1037: pop_LS(pc);
1.112 paf 1038: continue;
1.1 paf 1039: }
1.48 paf 1040: break;
1041:
1042: // STRING IN EXPRESSION
1.145 parser 1043: case LS_EXPRESSION_STRING_QUOTED:
1044: case LS_EXPRESSION_STRING_APOSTROFED:
1.48 paf 1045: switch(c) {
1046: case '"':
1.145 parser 1047: case '\'':
1048: if(
1.270 moko 1049: (pc.ls == LS_EXPRESSION_STRING_QUOTED && c=='"') ||
1050: (pc.ls == LS_EXPRESSION_STRING_APOSTROFED && c=='\'') ) {
1.206 paf 1051: pop_LS(pc); //"abc". | 'abc'.
1.145 parser 1052: RC;
1053: }
1054: break;
1.48 paf 1055: case '$':
1.206 paf 1056: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1057: RC;
1058: case '^':
1.206 paf 1059: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1060: RC;
1.10 paf 1061: }
1062: break;
1063:
1064: // METHOD DEFINITION
1065: case LS_DEF_NAME:
1.48 paf 1066: switch(c) {
1067: case '[':
1.206 paf 1068: pc.ls=LS_DEF_PARAMS;
1.48 paf 1069: RC;
1070: case '\n':
1.206 paf 1071: pc.ls=LS_DEF_SPECIAL_BODY;
1.48 paf 1072: RC;
1.10 paf 1073: }
1074: break;
1.48 paf 1075:
1.10 paf 1076: case LS_DEF_PARAMS:
1.48 paf 1077: switch(c) {
1.192 paf 1078: case '$': // common error
1.193 paf 1079: result=BAD_METHOD_PARAMETER_NAME_CHARACTER;
1080: goto break2;
1.48 paf 1081: case ';':
1082: RC;
1083: case ']':
1.206 paf 1084: pc.ls=*pc.source=='['?LS_DEF_LOCALS:LS_DEF_COMMENT;
1.48 paf 1085: RC;
1.49 paf 1086: case '\n': // wrong. bailing out
1.206 paf 1087: pop_LS(pc);
1.48 paf 1088: RC;
1.10 paf 1089: }
1090: break;
1.48 paf 1091:
1.10 paf 1092: case LS_DEF_LOCALS:
1.48 paf 1093: switch(c) {
1094: case '[':
1095: case ';':
1096: RC;
1097: case ']':
1.206 paf 1098: pc.ls=LS_DEF_COMMENT;
1.48 paf 1099: RC;
1100: case '\n': // wrong. bailing out
1.206 paf 1101: pop_LS(pc);
1.48 paf 1102: RC;
1.10 paf 1103: }
1104: break;
1.48 paf 1105:
1.10 paf 1106: case LS_DEF_COMMENT:
1107: if(c=='\n') {
1.206 paf 1108: pop_LS(pc);
1.48 paf 1109: RC;
1.37 paf 1110: }
1111: break;
1112:
1.48 paf 1113: case LS_DEF_SPECIAL_BODY:
1.175 paf 1114: if(c=='\n')
1.48 paf 1115: RC;
1116: break;
1117:
1118: // (EXPRESSION)
1.69 paf 1119: case LS_VAR_ROUND:
1120: case LS_METHOD_ROUND:
1.48 paf 1121: switch(c) {
1122: case ')':
1.270 moko 1123: if(--lexical_brackets_nestage==0) {
1.206 paf 1124: if(pc.ls==LS_METHOD_ROUND) // method round param ended
1125: pc.ls=LS_METHOD_AFTER; // look for method end
1126: else // pc.ls==LS_VAR_ROUND // variable constructor ended
1127: pop_LS(pc); // return to normal life
1.270 moko 1128: }
1.48 paf 1129: RC;
1.194 paf 1130: case '#': // comment start skipping
1131: if(end!=begin) {
1.206 paf 1132: if(!pc.string_start)
1133: pc.string_start=begin_pos;
1.194 paf 1134: // append piece till #
1.206 paf 1135: pc.string.append_strdup_know_length(begin, end-begin);
1.194 paf 1136: }
1137: // fall into COMMENT lexical state [wait for \n]
1.206 paf 1138: push_LS(pc, LS_EXPRESSION_COMMENT);
1.194 paf 1139: lexical_brackets_nestage=1;
1140: continue;
1.48 paf 1141: case '$':
1.206 paf 1142: push_LS(pc, LS_EXPRESSION_VAR_NAME_WITH_COLON);
1.48 paf 1143: RC;
1144: case '^':
1.206 paf 1145: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1146: RC;
1147: case '(':
1148: lexical_brackets_nestage++;
1149: RC;
1.67 paf 1150: case '-':
1.206 paf 1151: switch(*pc.source) {
1.127 paf 1152: case 'f': // -f
1.67 paf 1153: skip_analized=1;
1154: result=FEXISTS;
1.127 paf 1155: goto break2;
1156: case 'd': // -d
1157: skip_analized=1;
1158: result=DEXISTS;
1159: goto break2;
1.191 paf 1160: default: // minus
1.67 paf 1161: result=c;
1.127 paf 1162: goto break2;
1163: }
1.67 paf 1164: goto break2;
1.173 paf 1165: case '+': case '*': case '/': case '%': case '\\':
1.58 paf 1166: case '~':
1.48 paf 1167: case ';':
1168: RC;
1.193 paf 1169: case '&': case '|':
1.206 paf 1170: if(*pc.source==c) { // && ||
1.193 paf 1171: result=c=='&'?LAND:LOR;
1.67 paf 1172: skip_analized=1;
1.58 paf 1173: } else
1174: result=c;
1175: goto break2;
1.193 paf 1176: case '!':
1.206 paf 1177: switch(pc.source[0]) {
1.193 paf 1178: case '|': // !| !||
1179: skip_analized=1;
1.206 paf 1180: if(pc.source[1]=='|') {
1.193 paf 1181: skip_analized++;
1182: result=LXOR;
1183: } else
1184: result=NXOR;
1185: goto break2;
1186: case '=': // !=
1187: skip_analized=1;
1188: result=NNE;
1189: goto break2;
1190: }
1191: RC;
1.195 paf 1192:
1193: case '<': // <<, <=, <
1.206 paf 1194: switch(*pc.source) {
1.195 paf 1195: case '<': // <[<]
1196: skip_analized=1; result=NSL; break;
1197: case '=': // <[=]
1198: skip_analized=1; result=NLE; break;
1199: default: // <[]
1200: result=c; break;
1201: }
1202: goto break2;
1203: case '>': // >>, >=, >
1.206 paf 1204: switch(*pc.source) {
1.195 paf 1205: case '>': // >[>]
1206: skip_analized=1; result=NSR; break;
1207: case '=': // >[=]
1208: skip_analized=1; result=NGE; break;
1209: default: // >[]
1210: result=c; break;
1211: }
1212: goto break2;
1213: case '=': // ==
1.206 paf 1214: switch(*pc.source) {
1.195 paf 1215: case '=': // =[=]
1216: skip_analized=1; result=NEQ; break;
1217: default: // =[]
1218: result=c; break; // not used now
1219: }
1.58 paf 1220: goto break2;
1.195 paf 1221:
1.48 paf 1222: case '"':
1.206 paf 1223: push_LS(pc, LS_EXPRESSION_STRING_QUOTED);
1.145 parser 1224: RC;
1225: case '\'':
1.206 paf 1226: push_LS(pc, LS_EXPRESSION_STRING_APOSTROFED);
1.48 paf 1227: RC;
1.50 paf 1228: case 'l': case 'g': case 'e': case 'n':
1.51 paf 1229: if(end==begin) // right after whitespace
1.206 paf 1230: if(isspace(pc.source[1])) {
1231: switch(*pc.source) {
1.117 paf 1232: // case '?': // ok [and bad cases, yacc would bark at them]
1233: case 't': // lt gt [et nt]
1234: result=c=='l'?SLT:c=='g'?SGT:BAD_STRING_COMPARISON_OPERATOR;
1235: skip_analized=1;
1236: goto break2;
1237: case 'e': // le ge ne [ee]
1238: result=c=='l'?SLE:c=='g'?SGE:c=='n'?SNE:BAD_STRING_COMPARISON_OPERATOR;
1239: skip_analized=1;
1240: goto break2;
1241: case 'q': // eq [lq gq nq]
1242: result=c=='e'?SEQ:BAD_STRING_COMPARISON_OPERATOR;
1243: skip_analized=1;
1244: goto break2;
1245: }
1.67 paf 1246: }
1247: break;
1248: case 'i':
1249: if(end==begin) // right after whitespace
1.206 paf 1250: if(isspace(pc.source[1])) {
1251: switch(pc.source[0]) {
1.117 paf 1252: case 'n': // in
1.95 paf 1253: skip_analized=1;
1254: result=IN;
1255: goto break2;
1.117 paf 1256: case 's': // is
1.95 paf 1257: skip_analized=1;
1258: result=IS;
1259: goto break2;
1260: }
1.67 paf 1261: }
1262: break;
1263: case 'd':
1264: if(end==begin) // right after whitespace
1.206 paf 1265: if(pc.source[0]=='e' && pc.source[1]=='f') { // def
1.225 misha 1266: switch(pc.source[2]){
1267: case ' ': case '\t': case '\n': case '"': case '\'': case '^': case '$': // non-quoted string without whitespace after 'def' is not allowed
1268: skip_analized=2;
1269: result=DEF;
1270: goto break2;
1271: }
1272: // error: incorrect char after 'def'
1.50 paf 1273: }
1.48 paf 1274: break;
1.216 paf 1275: case 't':
1276: if(end==begin) // right after whitespace
1.225 misha 1277: if(pc.source[0]=='r' && pc.source[1]=='u' && pc.source[2]=='e') { // true
1.216 paf 1278: skip_analized=3;
1279: result=LITERAL_TRUE;
1280: goto break2;
1281: }
1282: break;
1283: case 'f':
1284: if(end==begin) // right after whitespace
1.225 misha 1285: if(pc.source[0]=='a' && pc.source[1]=='l' && pc.source[2]=='s' && pc.source[3]=='e') { // false
1.216 paf 1286: skip_analized=4;
1287: result=LITERAL_FALSE;
1288: goto break2;
1289: }
1290: break;
1.48 paf 1291: case ' ': case '\t': case '\n':
1.63 paf 1292: if(end!=begin) { // there were a string after previous operator?
1293: result=0; // return that string
1294: goto break2;
1.48 paf 1295: }
1.63 paf 1296: // that's a leading|traling space or after-operator-space
1297: // ignoring it
1298: // reset piece 'begin' position & line
1.206 paf 1299: begin=pc.source; // after whitespace char
1300: begin_pos=pc.pos;
1.48 paf 1301: continue;
1.1 paf 1302: }
1303: break;
1.194 paf 1304: case LS_EXPRESSION_COMMENT:
1305: if(c=='(')
1306: lexical_brackets_nestage++;
1307:
1.206 paf 1308: switch(*pc.source) {
1.194 paf 1309: case '\n': case ')':
1.206 paf 1310: if(*pc.source==')')
1.194 paf 1311: if(--lexical_brackets_nestage!=0)
1312: continue;
1313:
1314: // skip comment
1.206 paf 1315: begin=pc.source;
1316: begin_pos=pc.pos;
1.194 paf 1317:
1.206 paf 1318: pop_LS(pc);
1.194 paf 1319: continue;
1320: }
1321: break;
1.1 paf 1322:
1.10 paf 1323: // VARIABLE GET/PUT/WITH
1.166 parser 1324: case LS_VAR_NAME_SIMPLE_WITH_COLON:
1325: case LS_VAR_NAME_SIMPLE_WITHOUT_COLON:
1326: case LS_EXPRESSION_VAR_NAME_WITH_COLON:
1327: case LS_EXPRESSION_VAR_NAME_WITHOUT_COLON:
1328: if(
1.206 paf 1329: pc.ls==LS_EXPRESSION_VAR_NAME_WITH_COLON ||
1330: pc.ls==LS_EXPRESSION_VAR_NAME_WITHOUT_COLON) {
1.181 paf 1331: // name in expr ends also before
1.48 paf 1332: switch(c) {
1.181 paf 1333: // expression minus
1.92 paf 1334: case '-':
1.181 paf 1335: // expression integer division
1336: case '\\':
1.206 paf 1337: pop_LS(pc);
1338: pc.ungetc();
1.48 paf 1339: result=EON;
1340: goto break2;
1341: }
1342: }
1.166 parser 1343: if(
1.206 paf 1344: pc.ls==LS_VAR_NAME_SIMPLE_WITHOUT_COLON ||
1345: pc.ls==LS_EXPRESSION_VAR_NAME_WITHOUT_COLON) {
1.142 parser 1346: // name already has ':', stop before next
1347: switch(c) {
1348: case ':':
1.206 paf 1349: pop_LS(pc);
1350: pc.ungetc();
1.142 parser 1351: result=EON;
1352: goto break2;
1353: }
1354: }
1.48 paf 1355: switch(c) {
1356: case 0:
1357: case ' ': case '\t': case '\n':
1358: case ';':
1.126 paf 1359: case ']': case '}': case ')':
1360: case '"': case '\'':
1.139 parser 1361: case '<': case '>': // these stand for HTML brackets AND expression binary ops
1.253 misha 1362: case '+': case '*': case '/': case '\\': case '%':
1.92 paf 1363: case '&': case '|':
1364: case '=': case '!':
1.99 paf 1365: // common delimiters
1.190 paf 1366: case ',': case '?': case '#':
1.220 paf 1367: // mysql column separators
1368: case '`':
1.139 parser 1369: // before call
1370: case '^':
1.206 paf 1371: pop_LS(pc);
1372: pc.ungetc();
1.13 paf 1373: result=EON;
1.1 paf 1374: goto break2;
1.48 paf 1375: case '[':
1.162 parser 1376: // $name.<[>code]
1.301 moko 1377: if( end[-1]=='$' /* was start of get */ ||
1378: end[-1]==':' /* was class name delim */ ||
1379: end[-1]=='.' /* was name delim */
1.300 moko 1380: ) {
1.206 paf 1381: push_LS(pc, LS_NAME_SQUARE_PART);
1.162 parser 1382: lexical_brackets_nestage=1;
1383: RC;
1384: }
1.206 paf 1385: pc.ls=LS_VAR_SQUARE;
1.1 paf 1386: lexical_brackets_nestage=1;
1.48 paf 1387: RC;
1388: case '{':
1.300 moko 1389: if(end[-1]=='$') { // ${name}, no need of EON, switching LS, not begin==end as $[a]{$b} will fit
1.206 paf 1390: pc.ls=LS_VAR_NAME_CURLY;
1.48 paf 1391: } else {
1.206 paf 1392: pc.ls=LS_VAR_CURLY;
1.48 paf 1393: lexical_brackets_nestage=1;
1394: }
1.69 paf 1395:
1.48 paf 1396: RC;
1397: case '(':
1.301 moko 1398: // $name.<(>expr)
1399: if( // end[-1]=='$' /* $() excluded */ ||
1400: end[-1]==':' /* was class name delim */ ||
1401: end[-1]=='.' /* was name delim */
1402: ) {
1403: push_LS(pc, LS_VAR_ROUND);
1404: lexical_brackets_nestage=1;
1405: RC;
1406: }
1.206 paf 1407: pc.ls=LS_VAR_ROUND;
1.1 paf 1408: lexical_brackets_nestage=1;
1.48 paf 1409: RC;
1410: case '.': // name part delim
1411: case '$': // name part subvar
1.160 parser 1412: case ':': // class<:>name
1.166 parser 1413: // go to _WITHOUT_COLON state variant...
1.206 paf 1414: if(pc.ls==LS_VAR_NAME_SIMPLE_WITH_COLON)
1415: pc.ls=LS_VAR_NAME_SIMPLE_WITHOUT_COLON;
1416: else if(pc.ls==LS_EXPRESSION_VAR_NAME_WITH_COLON)
1417: pc.ls=LS_EXPRESSION_VAR_NAME_WITHOUT_COLON;
1.166 parser 1418: // ...stop before next ':'
1.48 paf 1419: RC;
1.1 paf 1420: }
1421: break;
1.48 paf 1422:
1.1 paf 1423: case LS_VAR_NAME_CURLY:
1.48 paf 1424: switch(c) {
1.162 parser 1425: case '[':
1.166 parser 1426: // ${name.<[>code]}
1.206 paf 1427: push_LS(pc, LS_NAME_SQUARE_PART);
1.160 parser 1428: lexical_brackets_nestage=1;
1429: RC;
1.301 moko 1430: case '(':
1431: // ${name.<(>expr)}
1432: push_LS(pc, LS_VAR_ROUND);
1433: lexical_brackets_nestage=1;
1434: RC;
1.48 paf 1435: case '}': // ${name} finished, restoring LS
1.206 paf 1436: pop_LS(pc);
1.48 paf 1437: RC;
1438: case '.': // name part delim
1439: case '$': // name part subvar
1440: case ':': // ':name' or 'class:name'
1441: RC;
1.1 paf 1442: }
1443: break;
1.48 paf 1444:
1445: case LS_VAR_SQUARE:
1446: switch(c) {
1447: case '$':
1.206 paf 1448: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1449: RC;
1450: case '^':
1.206 paf 1451: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1452: RC;
1453: case ']':
1.1 paf 1454: if(--lexical_brackets_nestage==0) {
1.206 paf 1455: pop_LS(pc);
1.48 paf 1456: RC;
1.1 paf 1457: }
1.48 paf 1458: break;
1459: case ';': // operator_or_fmt;value delim
1460: RC;
1461: case '[':
1462: lexical_brackets_nestage++;
1463: break;
1.1 paf 1464: }
1465: break;
1.48 paf 1466:
1.1 paf 1467: case LS_VAR_CURLY:
1.48 paf 1468: switch(c) {
1469: case '$':
1.206 paf 1470: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1471: RC;
1472: case '^':
1.206 paf 1473: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1474: RC;
1475: case '}':
1.1 paf 1476: if(--lexical_brackets_nestage==0) {
1.206 paf 1477: pop_LS(pc);
1.48 paf 1478: RC;
1.1 paf 1479: }
1.48 paf 1480: break;
1481: case '{':
1.1 paf 1482: lexical_brackets_nestage++;
1.48 paf 1483: break;
1484: }
1.1 paf 1485: break;
1486:
1.10 paf 1487: // METHOD CALL
1.1 paf 1488: case LS_METHOD_NAME:
1.48 paf 1489: switch(c) {
1490: case '[':
1.301 moko 1491: // ^name.<[>code]
1492: if( // end[-1]=='^' /* never, ^[ is literal */ ||
1493: end[-1]==':' /* was class name delim */ ||
1494: end[-1]=='.' /* was name delim */
1495: ) {
1.206 paf 1496: push_LS(pc, LS_NAME_SQUARE_PART);
1.162 parser 1497: lexical_brackets_nestage=1;
1498: RC;
1499: }
1.206 paf 1500: pc.ls=LS_METHOD_SQUARE;
1.1 paf 1501: lexical_brackets_nestage=1;
1.48 paf 1502: RC;
1503: case '{':
1.206 paf 1504: pc.ls=LS_METHOD_CURLY;
1.1 paf 1505: lexical_brackets_nestage=1;
1.48 paf 1506: RC;
1.69 paf 1507: case '(':
1.301 moko 1508: // ^name.<(>expr)
1509: if( // end[-1]=='^' /* never, ^( is literal */ ||
1510: end[-1]==':' /* was class name delim */ ||
1511: end[-1]=='.' /* was name delim */
1512: ) {
1513: push_LS(pc, LS_VAR_ROUND);
1514: lexical_brackets_nestage=1;
1515: RC;
1516: }
1.206 paf 1517: pc.ls=LS_METHOD_ROUND;
1.69 paf 1518: lexical_brackets_nestage=1;
1519: RC;
1.48 paf 1520: case '.': // name part delim
1521: case '$': // name part subvar
1522: case ':': // ':name' or 'class:name'
1.170 parser 1523: case '^': // ^abc^xxx wrong. bailing out
1524: case ']': case '}': case ')': // ^abc]}) wrong. bailing out
1.207 paf 1525: case ' ': // ^if ( wrong. bailing out
1.48 paf 1526: RC;
1.1 paf 1527: }
1528: break;
1.48 paf 1529:
1530: case LS_METHOD_SQUARE:
1531: switch(c) {
1532: case '$':
1.206 paf 1533: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1534: RC;
1535: case '^':
1.206 paf 1536: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1537: RC;
1538: case ';': // param delim
1539: RC;
1540: case ']':
1.1 paf 1541: if(--lexical_brackets_nestage==0) {
1.206 paf 1542: pc.ls=LS_METHOD_AFTER;
1.48 paf 1543: RC;
1.1 paf 1544: }
1.48 paf 1545: break;
1546: case '[':
1.1 paf 1547: lexical_brackets_nestage++;
1.48 paf 1548: break;
1549: }
1.1 paf 1550: break;
1.48 paf 1551:
1.1 paf 1552: case LS_METHOD_CURLY:
1.48 paf 1553: switch(c) {
1554: case '$':
1.206 paf 1555: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1556: RC;
1557: case '^':
1.206 paf 1558: push_LS(pc, LS_METHOD_NAME);
1.94 paf 1559: RC;
1560: case ';': // param delim
1.48 paf 1561: RC;
1562: case '}':
1.1 paf 1563: if(--lexical_brackets_nestage==0) {
1.206 paf 1564: pc.ls=LS_METHOD_AFTER;
1.48 paf 1565: RC;
1.1 paf 1566: }
1.48 paf 1567: break;
1568: case '{':
1.1 paf 1569: lexical_brackets_nestage++;
1.48 paf 1570: break;
1571: }
1.209 paf 1572: if(pc.explicit_result && c)
1573: switch(c) {
1.276 moko 1574: default:
1575: pc.string.append(c);
1.209 paf 1576: case '\n': case ' ': case '\t':
1577: begin=pc.source;
1578: begin_pos=pc.pos;
1.276 moko 1579: continue;
1.209 paf 1580: }
1.1 paf 1581: break;
1.48 paf 1582:
1.1 paf 1583: case LS_METHOD_AFTER:
1.69 paf 1584: if(c=='[') {/* ][ }[ )[ */
1.206 paf 1585: pc.ls=LS_METHOD_SQUARE;
1.1 paf 1586: lexical_brackets_nestage=1;
1.48 paf 1587: RC;
1.281 moko 1588: }
1.69 paf 1589: if(c=='{') {/* ]{ }{ ){ */
1.206 paf 1590: pc.ls=LS_METHOD_CURLY;
1.69 paf 1591: lexical_brackets_nestage=1;
1592: RC;
1.281 moko 1593: }
1.69 paf 1594: if(c=='(') {/* ]( }( )( */
1.206 paf 1595: pc.ls=LS_METHOD_ROUND;
1.1 paf 1596: lexical_brackets_nestage=1;
1.48 paf 1597: RC;
1.281 moko 1598: }
1.206 paf 1599: pop_LS(pc);
1600: pc.ungetc();
1.13 paf 1601: result=EON;
1.1 paf 1602: goto break2;
1603: }
1.9 paf 1604: if(c==0) {
1.1 paf 1605: result=-1;
1606: break;
1607: }
1608: }
1609:
1610: break2:
1.59 paf 1611: if(end!=begin) { // there is last piece?
1.258 misha 1612: if(c=='@' || c==0) // we are before LS_DEF_NAME or EOF?
1613: while(end!=begin && end[-1]=='\n') // trim all empty lines before LS_DEF_NAME and EOF
1.137 parser 1614: end--;
1.206 paf 1615: if(end!=begin && pc.ls!=LS_USER_COMMENT) { // last piece still alive and not comment?
1616: if(!pc.string_start)
1617: pc.string_start=begin_pos;
1.59 paf 1618: // append it
1.206 paf 1619: pc.string.append_strdup_know_length(begin, end-begin);
1.30 paf 1620: }
1.59 paf 1621: }
1.206 paf 1622: if(!pc.string.is_empty()) { // something accumulated?
1623: // create STRING value: array of OP_VALUE+origin+vstring
1.278 moko 1624: #ifdef SYMBOLS_CACHING
1625: Value *lookup=symbols->get(pc.string);
1626: #else
1627: Value *lookup=0;
1628: #endif
1.281 moko 1629: *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 1630: // new pieces storage
1.206 paf 1631: pc.string.clear();
1632: pc.string_start.clear();
1.58 paf 1633: // make current result be pending for next call, return STRING for now
1.206 paf 1634: pc.pending_state=result; result=STRING;
1.58 paf 1635: }
1.67 paf 1636: if(skip_analized) {
1.206 paf 1637: pc.source+=skip_analized; pc.pos.col+=skip_analized;
1.1 paf 1638: }
1.58 paf 1639: return result;
1.1 paf 1640: }
1641:
1.264 moko 1642: static int real_yyerror(Parse_control *pc, const char *s) { // Called by yyparse on error
1.293 moko 1643: PC.error=pa_strdup(s);
1.281 moko 1644: return 1;
1.110 paf 1645: }
1.1 paf 1646:
1.110 paf 1647: static void yyprint(FILE *file, int type, YYSTYPE value) {
1648: if(type==STRING)
1.206 paf 1649: fprintf(file, " \"%s\"", LA2S(*value)->cstr());
1.110 paf 1650: }
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