Annotation of parser3/src/main/compile.y, revision 1.286
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:
1.286 ! moko 11: volatile const char * IDENT_COMPILE_Y = "$Id: compile.y,v 1.285 2016/10/11 21:30:16 moko Exp $";
1.262 moko 12:
1.106 paf 13: /**
14: @todo parser4:
15: - cache compiled code from request to request. to do that...
16: -#: make method definitions, @CLASS, @BASE, @USE instructions,
1.88 paf 17: which would be executed afterwards, and actions
18: now performed at compile time would be delayed to run time.
1.106 paf 19: -#: make cache expiration on time and on disk-change of class source
20: -#: in apache use subpools for compiled class storage
21: -#: in iis make up specialized Pool object for that
1.24 paf 22: */
23:
1.206 paf 24: #define YYSTYPE ArrayOperation*
1.9 paf 25: #define YYDEBUG 1
1.271 moko 26: #define YYERROR_VERBOSE 1
27: #define yyerror(pc, msg) real_yyerror(pc, msg)
1.9 paf 28: #define YYPRINT(file, type, value) yyprint(file, type, value)
1.269 moko 29: #define YYMALLOC pa_malloc
30: #define YYFREE pa_free
1.1 paf 31:
1.206 paf 32: // includes
33:
1.1 paf 34: #include "compile_tools.h"
1.8 paf 35: #include "pa_value.h"
1.12 paf 36: #include "pa_request.h"
1.39 paf 37: #include "pa_vobject.h"
1.52 paf 38: #include "pa_vdouble.h"
1.98 paf 39: #include "pa_globals.h"
1.200 paf 40: #include "pa_vmethod_frame.h"
1.39 paf 41:
1.206 paf 42: // defines
43:
1.280 moko 44: #define CLASS_NAME "CLASS"
1.97 paf 45: #define USE_CONTROL_METHOD_NAME "USE"
1.226 misha 46: #define OPTIONS_CONTROL_METHOD_NAME "OPTIONS"
1.1 paf 47:
1.206 paf 48: // forwards
49:
1.264 moko 50: static int real_yyerror(Parse_control* pc, const char* s);
1.206 paf 51: static void yyprint(FILE* file, int type, YYSTYPE value);
52: static int yylex(YYSTYPE* lvalp, void* pc);
1.1 paf 53:
1.216 paf 54: static const VBool vfalse(false);
55: static const VBool vtrue(true);
1.261 moko 56: static const VString vempty;
1.216 paf 57:
1.8 paf 58: // local convinient inplace typecast & var
1.205 paf 59: #undef PC
1.271 moko 60: #define PC (*pc)
1.206 paf 61: #undef POOL
1.114 paf 62: #define POOL (*PC.pool)
1.107 paf 63: #ifndef DOXYGEN
1.265 moko 64:
1.281 moko 65: #define CLASS_ADD if(PC.class_add()){ \
66: strncpy(PC.error, PC.cclass->type(), MAX_STRING/2); \
67: strcat(PC.error, " - class is already defined"); \
68: YYERROR; \
69: }
70:
71: #define PC_ERROR(header, value, footer){ \
72: strcpy(PC.error, header); \
73: strncat(PC.error, value, MAX_STRING/2); \
74: strcat(PC.error, footer); \
1.265 moko 75: }
76:
1.1 paf 77: %}
78:
1.271 moko 79: %pure-parser
80: %lex-param {Parse_control* pc}
81: %parse-param {Parse_control* pc}
1.1 paf 82:
1.13 paf 83: %token EON
1.4 paf 84: %token STRING
1.1 paf 85: %token BOGUS
1.55 paf 86:
1.58 paf 87: %token BAD_STRING_COMPARISON_OPERATOR
1.114 paf 88: %token BAD_HEX_LITERAL
1.171 parser 89: %token BAD_METHOD_DECL_START
1.193 paf 90: %token BAD_METHOD_PARAMETER_NAME_CHARACTER
1.58 paf 91:
1.59 paf 92: %token LAND "&&"
1.58 paf 93: %token LOR "||"
1.193 paf 94: %token LXOR "!||"
95: %token NXOR "!|"
1.58 paf 96:
97: %token NLE "<="
98: %token NGE ">="
99: %token NEQ "=="
100: %token NNE "!="
1.195 paf 101: %token NSL "<<"
102: %token NSR ">>"
1.58 paf 103:
104: %token SLT "lt"
105: %token SGT "gt"
106: %token SLE "le"
107: %token SGE "ge"
108: %token SEQ "eq"
109: %token SNE "ne"
110:
1.67 paf 111: %token DEF "def"
112: %token IN "in"
113: %token FEXISTS "-f"
1.127 paf 114: %token DEXISTS "-d"
1.95 paf 115: %token IS "is"
1.67 paf 116:
1.216 paf 117: %token LITERAL_TRUE "true"
118: %token LITERAL_FALSE "false"
119:
1.57 paf 120: /* logical */
1.193 paf 121: %left "!||"
1.57 paf 122: %left "||"
123: %left "&&"
1.131 paf 124: %left '<' '>' "<=" ">=" "lt" "gt" "le" "ge"
125: %left "==" "!=" "eq" "ne"
126: %left "is" "def" "in" "-f" "-d"
1.57 paf 127:
128: /* bitwise */
1.193 paf 129: %left "!|"
1.131 paf 130: %left '|'
131: %left '&'
1.202 paf 132: %left "<<" ">>"
1.57 paf 133:
1.56 paf 134: /* numerical */
1.202 paf 135: %left '+' '-'
136: %left '*' '/' '\\' '%'
137: %left NUNARY /* unary - + */
138:
139: /* out-of-group */
140: %left '~' /* bitwise */
141: %left '!' /* logical */
1.1 paf 142:
143: %%
1.195 paf 144: all:
1.10 paf 145: one_big_piece {
1.284 moko 146: Method* method=new Method(Method::CT_ANY, 0, 0 /*min, max numbered_params_count*/, 0 /*param_names*/, 0 /*local_names*/, $1 /*parser_code*/, 0 /*native_code*/, PC.cclass->is_vars_local());
1.251 misha 147: PC.cclass->set_method(PC.alias_method(main_method_name), method);
1.10 paf 148: }
149: | methods;
150:
151: methods: method | methods method;
152: one_big_piece: maybe_codes;
153:
1.34 paf 154: method: control_method | code_method;
155:
156: control_method: '@' STRING '\n'
1.132 paf 157: maybe_control_strings {
1.260 misha 158: const String& command=LA2S(*$2)->trim(String::TRIM_END);
1.34 paf 159: YYSTYPE strings_code=$4;
1.206 paf 160: if(strings_code->count()<1*OPERATIONS_PER_OPVALUE) {
1.281 moko 161: PC_ERROR("@", command.cstr(), " is empty");
1.37 paf 162: YYERROR;
163: }
1.74 paf 164: if(command==CLASS_NAME) {
1.206 paf 165: if(strings_code->count()==1*OPERATIONS_PER_OPVALUE) {
1.265 moko 166: CLASS_ADD;
1.73 paf 167: // new class' name
1.260 misha 168: const String& name=LA2S(*strings_code)->trim(String::TRIM_END);
1.73 paf 169: // creating the class
1.206 paf 170: VStateless_class* cclass=new VClass;
1.226 misha 171: PC.cclass_new=cclass;
1.275 moko 172: PC.cclass_new->set_type(name.cstr());
1.266 misha 173: PC.append=false;
1.73 paf 174: } else {
1.268 moko 175: strcpy(PC.error, "@" CLASS_NAME " must contain only one line with class name (contains more then one)");
1.34 paf 176: YYERROR;
177: }
1.130 paf 178: } else if(command==USE_CONTROL_METHOD_NAME) {
1.265 moko 179: CLASS_ADD;
1.273 moko 180: for(size_t i=0; i<strings_code->count(); i+=OPERATIONS_PER_OPVALUE){
1.286 ! moko 181: PC.request.use_file(LA2S(*strings_code, i)->trim(String::TRIM_END), PC.request.get_used_filename(PC.file_no), strings_code->get(i+1).origin);
1.273 moko 182: }
1.130 paf 183: } else if(command==BASE_NAME) {
1.226 misha 184: if(PC.append){
1.281 moko 185: PC_ERROR("can't set base while appending methods to class '", PC.cclass->type(), "'");
1.226 misha 186: YYERROR;
187: }
1.265 moko 188: CLASS_ADD;
1.188 paf 189: if(PC.cclass->base_class()) { // already changed from default?
1.281 moko 190: PC_ERROR("class already have a base '", PC.cclass->base_class()->type(), "'");
1.130 paf 191: YYERROR;
192: }
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
1.283 moko 197: if(PC.cclass==base_class) {
198: strcpy(PC.error, "@" CLASS_NAME " equals @" BASE_NAME);
1.206 paf 199: YYERROR;
200: }
1.283 moko 201: PC.cclass->get_class()->set_base(base_class);
1.206 paf 202: } else {
1.281 moko 203: PC_ERROR("'", base_name.cstr(), "': undefined class in @" BASE_NAME);
1.73 paf 204: YYERROR;
205: }
1.34 paf 206: } else {
1.268 moko 207: strcpy(PC.error, "@" BASE_NAME " must contain sole name");
1.34 paf 208: YYERROR;
209: }
1.223 misha 210: } else if(command==OPTIONS_CONTROL_METHOD_NAME) {
211: for(size_t i=0; i<strings_code->count(); i+=OPERATIONS_PER_OPVALUE) {
1.260 misha 212: const String& option=LA2S(*strings_code, i)->trim(String::TRIM_END);
1.279 moko 213: if(option==Symbols::LOCALS_SYMBOL){
1.226 misha 214: PC.set_all_vars_local();
1.279 moko 215: } else if(option==Symbols::PARTIAL_SYMBOL){
1.230 misha 216: if(PC.cclass_new){
217: if(VStateless_class* existed=PC.get_existed_class(PC.cclass_new)){
218: if(!PC.reuse_existed_class(existed)){
1.281 moko 219: PC_ERROR("can't append methods to '", PC.cclass_new->type(), "' - the class wasn't marked as partial");
1.230 misha 220: YYERROR;
221: }
1.226 misha 222: } else {
1.256 misha 223: // marks the new class as partial. we will be able to add methods here later.
1.230 misha 224: PC.cclass_new->set_partial();
1.226 misha 225: }
1.230 misha 226: } else {
1.279 moko 227: strcpy(PC.error, "'partial' option should be used straight after @" CLASS_NAME);
1.226 misha 228: YYERROR;
229: }
1.279 moko 230: } else if(option==Symbols::STATIC_SYMBOL){
1.256 misha 231: PC.set_methods_call_type(Method::CT_STATIC);
1.279 moko 232: } else if(option==Symbols::DYNAMIC_SYMBOL){
1.256 misha 233: PC.set_methods_call_type(Method::CT_DYNAMIC);
1.223 misha 234: } else {
1.281 moko 235: PC_ERROR("'", option.cstr(), "' invalid option. valid options are 'partial', 'locals', 'static' and 'dynamic'");
1.223 misha 236: YYERROR;
237: }
238: }
1.130 paf 239: } else {
1.281 moko 240: 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 241: YYERROR;
1.34 paf 242: }
243: };
1.132 paf 244: maybe_control_strings: empty | control_strings;
1.259 misha 245: control_strings: control_string | control_strings control_string { $$=$1; P(*$$, *$2); };
1.37 paf 246: control_string: maybe_string '\n';
247: maybe_string: empty | STRING;
1.34 paf 248:
1.222 misha 249: code_method: '@' STRING bracketed_maybe_strings maybe_bracketed_strings maybe_comment '\n' {
1.265 moko 250: CLASS_ADD;
1.208 paf 251: PC.explicit_result=false;
1.10 paf 252:
253: YYSTYPE params_names_code=$3;
1.206 paf 254: ArrayString* params_names=0;
255: if(int size=params_names_code->count()) {
256: params_names=new ArrayString;
257: for(int i=0; i<size; i+=OPERATIONS_PER_OPVALUE)
258: *params_names+=LA2S(*params_names_code, i);
1.75 paf 259: }
1.10 paf 260:
261: YYSTYPE locals_names_code=$4;
1.206 paf 262: ArrayString* locals_names=0;
1.284 moko 263: bool all_vars_local=PC.cclass->is_vars_local();
264:
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: }
1.10 paf 277:
1.208 paf 278: Method* method=new Method(
1.206 paf 279: //name,
1.257 misha 280: GetMethodCallType(PC, *$2),
1.81 paf 281: 0, 0/*min,max numbered_params_count*/,
1.76 paf 282: params_names, locals_names,
1.223 misha 283: 0/*to be filled later in next {} */, 0, all_vars_local);
1.221 misha 284:
1.208 paf 285: *reinterpret_cast<Method**>(&$$)=method;
1.222 misha 286: } maybe_codes {
1.251 misha 287: Method* method=reinterpret_cast<Method*>($7);
1.231 misha 288: // fill in the code
1.251 misha 289: method->parser_code=$8;
1.231 misha 290:
291: // register in class
292: const String& name=*LA2S(*$2);
1.251 misha 293: PC.cclass->set_method(PC.alias_method(name), method);
1.8 paf 294: };
1.10 paf 295:
296: maybe_bracketed_strings: empty | bracketed_maybe_strings;
1.259 misha 297: bracketed_maybe_strings: '[' maybe_strings ']' {$$=$2;};
1.10 paf 298: maybe_strings: empty | strings;
1.259 misha 299: strings: STRING | strings ';' STRING { $$=$1; P(*$$, *$3); };
1.10 paf 300:
301: maybe_comment: empty | STRING;
1.1 paf 302:
303: /* codes */
304:
1.10 paf 305: maybe_codes: empty | codes;
306:
1.259 misha 307: codes: code | codes code { $$=$1; P(*$$, *$2); };
1.81 paf 308: code: write_string | action;
1.209 paf 309: action: get | put | call;
1.1 paf 310:
311: /* get */
312:
1.64 paf 313: get: get_value {
1.238 misha 314: $$=N();
315: YYSTYPE code=$1;
1.247 misha 316: size_t count=code->count();
1.245 misha 317:
1.235 misha 318: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
1.281 moko 319: if(count!=3 || !change_first(*code, OP::OP_VALUE__GET_ELEMENT, /*=>*/OP::OP_VALUE__GET_ELEMENT__WRITE) )
1.238 misha 320: #endif
1.247 misha 321:
1.245 misha 322: #ifdef OPTIMIZE_BYTECODE_GET_SELF_ELEMENT
1.281 moko 323: if(count!=3 || !change_first(*code, OP::OP_WITH_SELF__VALUE__GET_ELEMENT, /*=>*/OP::OP_WITH_SELF__VALUE__GET_ELEMENT__WRITE) )
1.245 misha 324: #endif
325:
1.239 misha 326: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_ELEMENT
1.281 moko 327: if(count!=5 || !change_first(*code, OP::OP_GET_OBJECT_ELEMENT, /*=>*/OP::OP_GET_OBJECT_ELEMENT__WRITE) )
1.239 misha 328: #endif
329:
330: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_VAR_ELEMENT
1.281 moko 331: if(count!=5 || !change_first(*code, OP::OP_GET_OBJECT_VAR_ELEMENT, /*=>*/OP::OP_GET_OBJECT_VAR_ELEMENT__WRITE) )
1.238 misha 332: #endif
1.267 misha 333:
334: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT__SPECIAL
1.281 moko 335: if(!change(*code, count-1/* last */, OP::OP_GET_ELEMENT__SPECIAL, /*=>*/OP::OP_GET_ELEMENT__SPECIAL__WRITE) )
1.267 misha 336: #endif
337:
1.247 misha 338: {
1.281 moko 339: change_or_append(*code, count-1 /* last */, OP::OP_GET_ELEMENT, /*=>*/OP::OP_GET_ELEMENT__WRITE, /*or */OP::OP_WRITE_VALUE ); /* value=pop; wcontext.write(value) */
1.246 misha 340: }
1.247 misha 341:
1.238 misha 342: P(*$$, *code);
1.1 paf 343: };
1.259 misha 344: get_value: '$' get_name_value { $$=$2; };
1.64 paf 345: get_name_value: name_without_curly_rdive EON | name_in_curly_rdive;
1.259 misha 346: name_in_curly_rdive: '{' name_without_curly_rdive '}' { $$=$2; };
1.44 paf 347: name_without_curly_rdive:
348: name_without_curly_rdive_read
349: | name_without_curly_rdive_class;
1.19 paf 350: name_without_curly_rdive_read: name_without_curly_rdive_code {
1.206 paf 351: $$=N();
1.238 misha 352: YYSTYPE diving_code=$1;
1.239 misha 353: size_t count=diving_code->count();
1.247 misha 354:
355: if(maybe_make_self(*$$, *diving_code, count)) {
356: // $self.
357: } else
1.239 misha 358:
359: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_ELEMENT
1.247 misha 360: if(maybe_make_get_object_element(*$$, *diving_code, count)){
1.245 misha 361: // optimization for $object.field + ^object.method[
1.247 misha 362: } else
1.238 misha 363: #endif
1.239 misha 364:
365: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_VAR_ELEMENT
1.247 misha 366: if(maybe_make_get_object_var_element(*$$, *diving_code, count)){
1.245 misha 367: // optimization for $object.$var
1.247 misha 368: } else
1.238 misha 369: #endif
1.239 misha 370:
371: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
1.281 moko 372: if(count>=4 && (*diving_code)[0].code==OP::OP_VALUE && (*diving_code)[3].code==OP::OP_GET_ELEMENT ){
1.248 misha 373: // optimization
1.239 misha 374: O(*$$,
1.247 misha 375: (PC.in_call_value && count==4)
1.239 misha 376: ? OP::OP_VALUE__GET_ELEMENT_OR_OPERATOR // ^object[ : OP_VALUE+origin+string+OP_GET_ELEMENT => OP_VALUE__GET_ELEMENT_OR_OPERATOR+origin+string
377: : OP::OP_VALUE__GET_ELEMENT // $object : OP_VALUE+origin+string+OP_GET_ELEMENT => OP_VALUE__GET_ELEMENT+origin+string
378: );
379: P(*$$, *diving_code, 1/*offset*/, 2/*limit*/); // copy origin+value
1.247 misha 380: if(count>4)
381: P(*$$, *diving_code, 4); // copy tail
1.239 misha 382: } else {
383: O(*$$, OP::OP_WITH_READ); /* stack: starting context */
384: P(*$$, *diving_code);
385: }
1.233 misha 386: #else
1.247 misha 387: {
1.238 misha 388: O(*$$, OP::OP_WITH_READ); /* stack: starting context */
1.179 paf 389:
1.238 misha 390: // ^if OP_ELEMENT => ^if OP_ELEMENT_OR_OPERATOR
391: // optimized OP_VALUE+origin+string+OP_GET_ELEMENT. => OP_VALUE+origin+string+OP_GET_ELEMENT_OR_OPERATOR.
1.239 misha 392: if(PC.in_call_value && count==4)
393: diving_code->put(count-1, OP::OP_GET_ELEMENT_OR_OPERATOR);
1.206 paf 394: P(*$$, *diving_code);
1.239 misha 395: }
1.233 misha 396: #endif
1.22 paf 397: /* diving code; stack: current context */
1.1 paf 398: };
1.259 misha 399: name_without_curly_rdive_class: class_prefix name_without_curly_rdive_code { $$=$1; P(*$$, *$2); };
400: name_without_curly_rdive_code: name_advance2 | name_path name_advance2 { $$=$1; P(*$$, *$2); };
1.1 paf 401:
402: /* put */
403:
1.81 paf 404: put: '$' name_expr_wdive construct {
1.241 misha 405: $$=N();
1.244 misha 406: #ifdef OPTIMIZE_BYTECODE_CONSTRUCT
407: if(maybe_optimize_construct(*$$, *$2, *$3)){
1.246 misha 408: // $a(expr), $.a(expr), $a[value], $.a[value], $self.a[value], $self.a(expr)
1.241 misha 409: } else
410: #endif
411: {
412: P(*$$, *$2); /* stack: context,name */
413: P(*$$, *$3); /* stack: context,name,constructor_value */
414: }
1.20 paf 415: };
1.44 paf 416: name_expr_wdive:
1.157 parser 417: name_expr_wdive_root
418: | name_expr_wdive_write
1.44 paf 419: | name_expr_wdive_class;
1.157 parser 420: name_expr_wdive_root: name_expr_dive_code {
1.206 paf 421: $$=N();
1.238 misha 422: YYSTYPE diving_code=$1;
1.247 misha 423: size_t count=diving_code->count();
424:
425: if(maybe_make_self(*$$, *diving_code, count)) {
426: // $self.
427: } else
428: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
1.281 moko 429: if(count>=4 && (*diving_code)[0].code==OP::OP_VALUE && (*diving_code)[3].code==OP::OP_GET_ELEMENT ){
1.247 misha 430: O(*$$, OP::OP_WITH_ROOT__VALUE__GET_ELEMENT);
431: P(*$$, *diving_code, 1/*offset*/, 2/*limit*/); // copy origin+value
432: if(count>4)
433: P(*$$, *diving_code, 4); // tail
434: } else
435: #endif
436: {
1.229 misha 437: O(*$$, OP::OP_WITH_ROOT); /* stack: starting context */
1.206 paf 438: P(*$$, *diving_code);
1.23 paf 439: }
440: /* diving code; stack: current context */
1.156 parser 441: };
1.157 parser 442: name_expr_wdive_write: '.' name_expr_dive_code {
1.206 paf 443: $$=N();
1.229 misha 444: O(*$$, OP::OP_WITH_WRITE); /* stack: starting context */
1.206 paf 445: P(*$$, *$2); /* diving code; stack: context,name */
1.20 paf 446: };
1.259 misha 447: name_expr_wdive_class: class_prefix name_expr_dive_code { $$=$1; P(*$$, *$2); };
1.20 paf 448:
1.244 misha 449: construct:
1.163 parser 450: construct_square
451: | construct_round
452: | construct_curly
1.149 parser 453: ;
1.211 paf 454: construct_square: '[' {
455: // allow $result_or_other_variable[ letters here any time ]
456: *reinterpret_cast<bool*>(&$$)=PC.explicit_result; PC.explicit_result=false;
457: } any_constructor_code_value {
1.213 paf 458: PC.explicit_result=*reinterpret_cast<bool*>(&$2);
1.211 paf 459: } ']' {
1.149 parser 460: // stack: context, name
1.211 paf 461: $$=$3; // stack: context, name, value
1.229 misha 462: O(*$$, OP::OP_CONSTRUCT_VALUE); /* value=pop; name=pop; context=pop; construct(context,name,value) */
1.81 paf 463: }
464: ;
1.149 parser 465: construct_round: '(' expr_value ')' {
1.206 paf 466: $$=N();
1.149 parser 467: // stack: context, name
1.206 paf 468: P(*$$, *$2); // stack: context, name, value
1.229 misha 469: O(*$$, OP::OP_CONSTRUCT_EXPR); /* value=pop->as_expr_result; name=pop; context=pop; construct(context,name,value) */
1.81 paf 470: }
1.52 paf 471: ;
1.149 parser 472: construct_curly: '{' maybe_codes '}' {
473: // stack: context, name
1.206 paf 474: $$=N();
1.229 misha 475: OA(*$$, OP::OP_CURLY_CODE__CONSTRUCT, $2); /* code=pop; name=pop; context=pop; construct(context,name,junction(code)) */
1.149 parser 476: };
477:
1.55 paf 478: any_constructor_code_value:
1.261 moko 479: empty_value /* optimized $var[] case */
1.52 paf 480: | STRING /* optimized $var[STRING] case */
1.55 paf 481: | constructor_code_value /* $var[something complex] */
1.1 paf 482: ;
1.55 paf 483: constructor_code_value: constructor_code {
1.206 paf 484: $$=N();
1.229 misha 485: OA(*$$, OP::OP_OBJECT_POOL, $1); /* stack: empty write context */
1.183 paf 486: /* some code that writes to that context */
487: /* context=pop; stack: context.value() */
1.1 paf 488: };
1.55 paf 489: constructor_code: codes__excluding_sole_str_literal;
1.259 misha 490: codes__excluding_sole_str_literal: action | code codes { $$=$1; P(*$$, *$2); };
1.27 paf 491:
1.1 paf 492: /* call */
493:
1.66 paf 494: call: call_value {
1.267 misha 495: size_t count=$1->count();
1.238 misha 496: #ifdef OPTIMIZE_BYTECODE_CUT_REM_OPERATOR
1.267 misha 497: if(count)
1.238 misha 498: #endif
499: {
500: $$=$1; /* stack: value */
1.281 moko 501: if(!change_first(*$$, OP::OP_CONSTRUCT_OBJECT, /*=>*/ OP::OP_CONSTRUCT_OBJECT__WRITE))
502: change_or_append(*$$, count-2 /* second last */, OP::OP_CALL, /*=>*/ OP::OP_CALL__WRITE, /*or */ OP::OP_WRITE_VALUE); /* value=pop; wcontext.write(value) */
1.238 misha 503: }
1.66 paf 504: };
1.177 paf 505: call_value: '^' {
1.281 moko 506: PC.in_call_value=true;
507: }
508: call_name {
509: PC.in_call_value=false;
510: }
511: store_params EON { /* ^field.$method{vasya} */
1.238 misha 512: #ifdef OPTIMIZE_BYTECODE_CUT_REM_OPERATOR
1.242 misha 513: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
1.238 misha 514: const String* operator_name=LA2S(*$3, 0, OP::OP_VALUE__GET_ELEMENT_OR_OPERATOR);
1.242 misha 515: #else
516: const String* operator_name=LA2S(*$3, 1);
517: #endif
1.279 moko 518: if(operator_name && SYMBOLS_EQ(*operator_name,REM_SYMBOL)){
1.238 misha 519: $$=N();
520: } else
521: #endif
522: {
523: YYSTYPE params_code=$5;
524: if(params_code->count()==3) { // probably [] case. [OP::OP_VALUE+origin+Void]
525: if(Value* value=LA2V(*params_code)) // it is OP_VALUE+origin+value?
1.261 moko 526: if(const String * string=value->get_string())
527: if(string->is_empty()) // value is empty string?
528: params_code=0; // ^zzz[] case. don't append lone empty param.
1.238 misha 529: }
530: /* stack: context, method_junction */
1.249 misha 531:
532: YYSTYPE var_code=$3;
533: if(
534: var_code->count()==8
1.282 moko 535: && ( (*var_code)[0].code==OP::OP_VALUE__GET_CLASS || (*var_code)[0].code==OP::OP_VALUE__GET_BASE_CLASS )
1.249 misha 536: && (*var_code)[3].code==OP::OP_PREPARE_TO_CONSTRUCT_OBJECT
537: && (*var_code)[4].code==OP::OP_VALUE
1.272 moko 538: #ifdef FEATURE_GET_ELEMENT4CALL
539: && (*var_code)[7].code==OP::OP_GET_ELEMENT4CALL
540: #else
1.249 misha 541: && (*var_code)[7].code==OP::OP_GET_ELEMENT
1.272 moko 542: #endif
1.249 misha 543: ){
1.267 misha 544: $$=N();
1.249 misha 545: O(*$$, OP::OP_CONSTRUCT_OBJECT);
546: P(*$$, *var_code, 1/*offset*/, 2/*limit*/); // class name
547: P(*$$, *var_code, 5/*offset*/, 2/*limit*/); // constructor name
548: OA(*$$, params_code);
549: } else
550: {
551: $$=var_code; /* with_xxx,diving code; stack: context,method_junction */
552: OA(*$$, OP::OP_CALL, params_code); // method_frame=make frame(pop junction); ncontext=pop; call(ncontext,method_frame) stack: value
553: }
1.238 misha 554: }
1.1 paf 555: };
556:
1.272 moko 557: call_name: name_without_curly_rdive {
558: #ifdef FEATURE_GET_ELEMENT4CALL
559: size_t count=$1->count();
560: if(count){
561: $$=$1;
562: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_ELEMENT
563: !(count==5 && change_first(*$$, OP::OP_GET_OBJECT_ELEMENT, OP::OP_GET_OBJECT_ELEMENT4CALL)) &&
564: #endif
565: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_VAR_ELEMENT
566: !(count==5 && change_first(*$$, OP::OP_GET_OBJECT_VAR_ELEMENT, OP::OP_GET_OBJECT_VAR_ELEMENT4CALL)) &&
567: #endif
568: !change(*$$, count-1, OP::OP_GET_ELEMENT, OP::OP_GET_ELEMENT4CALL);
569: }
570: #endif
571: };
1.38 paf 572:
1.259 misha 573: store_params: store_param | store_params store_param { $$=$1; P(*$$, *$2); };
1.69 paf 574: store_param:
575: store_square_param
576: | store_round_param
577: | store_curly_param
1.31 paf 578: ;
1.210 paf 579: store_square_param: '[' {
1.211 paf 580: // allow ^call[ letters here any time ]
1.210 paf 581: *reinterpret_cast<bool*>(&$$)=PC.explicit_result; PC.explicit_result=false;
582: } store_code_param_parts {
1.213 paf 583: PC.explicit_result=*reinterpret_cast<bool*>(&$2);
1.259 misha 584: } ']' {$$=$3;};
585: store_round_param: '(' store_expr_param_parts ')' {$$=$2;};
586: store_curly_param: '{' store_curly_param_parts '}' {$$=$2;};
1.69 paf 587: store_code_param_parts:
588: store_code_param_part
1.259 misha 589: | store_code_param_parts ';' store_code_param_part { $$=$1; P(*$$, *$3); }
1.69 paf 590: ;
591: store_expr_param_parts:
592: store_expr_param_part
1.259 misha 593: | store_expr_param_parts ';' store_expr_param_part { $$=$1; P(*$$, *$3); }
1.69 paf 594: ;
1.94 paf 595: store_curly_param_parts:
596: store_curly_param_part
1.259 misha 597: | store_curly_param_parts ';' store_curly_param_part { $$=$1; P(*$$, *$3); }
1.94 paf 598: ;
1.120 paf 599: store_code_param_part: code_param_value {
1.32 paf 600: $$=$1;
1.120 paf 601: };
1.214 paf 602: store_expr_param_part: expr_value {
603: YYSTYPE expr_code=$1;
1.215 paf 604: if(expr_code->count()==3
1.234 misha 605: && (*expr_code)[0].code==OP::OP_VALUE) { // optimizing (double/bool/incidently 'string' too) case. [OP::OP_VALUE+origin+Double]. no evaluating
1.214 paf 606: $$=expr_code;
607: } else {
1.238 misha 608: YYSTYPE code=N();
1.214 paf 609: P(*code, *expr_code);
1.229 misha 610: O(*code, OP::OP_WRITE_EXPR_RESULT);
1.214 paf 611: $$=N();
1.229 misha 612: OA(*$$, OP::OP_EXPR_CODE__STORE_PARAM, code);
1.214 paf 613: }
1.69 paf 614: };
1.94 paf 615: store_curly_param_part: maybe_codes {
1.206 paf 616: $$=N();
1.229 misha 617: OA(*$$, OP::OP_CURLY_CODE__STORE_PARAM, $1);
1.94 paf 618: };
1.120 paf 619: code_param_value:
1.261 moko 620: empty_value /* optimized [;...] case */
1.120 paf 621: | STRING /* optimized [STRING] case */
622: | constructor_code_value /* [something complex] */
623: ;
1.1 paf 624:
625: /* name */
626:
1.259 misha 627: name_expr_dive_code: name_expr_value | name_path name_expr_value { $$=$1; P(*$$, *$2); };
1.1 paf 628:
1.259 misha 629: name_path: name_step | name_path name_step { $$=$1; P(*$$, *$2); };
1.1 paf 630: name_step: name_advance1 '.';
631: name_advance1: name_expr_value {
1.177 paf 632: // we know that name_advance1 not called from ^xxx context
633: // so we'll not check for operator call possibility as we do in name_advance2
634:
1.1 paf 635: /* stack: context */
636: $$=$1; /* stack: context,name */
1.267 misha 637: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT__SPECIAL
638: O(*$$, is_special_element(*$$) ? OP::OP_GET_ELEMENT__SPECIAL : OP::OP_GET_ELEMENT);
639: #else
1.229 misha 640: O(*$$, OP::OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */
1.267 misha 641: #endif
1.1 paf 642: };
643: name_advance2: name_expr_value {
644: /* stack: context */
645: $$=$1; /* stack: context,name */
1.267 misha 646: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT__SPECIAL
647: O(*$$, is_special_element(*$$) ? OP::OP_GET_ELEMENT__SPECIAL : OP::OP_GET_ELEMENT);
648: #else
1.229 misha 649: O(*$$, OP::OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */
1.267 misha 650: #endif
1.1 paf 651: }
1.4 paf 652: | STRING BOGUS
1.1 paf 653: ;
654: name_expr_value:
1.4 paf 655: STRING /* subname_is_const */
1.1 paf 656: | name_expr_subvar_value /* $subname_is_var_value */
1.160 parser 657: | name_expr_with_subvar_value /* xxx$part_of_subname_is_var_value */
1.166 parser 658: | name_square_code_value /* [codes] */
1.1 paf 659: ;
660: name_expr_subvar_value: '$' subvar_ref_name_rdive {
661: $$=$2;
1.229 misha 662: O(*$$, OP::OP_GET_ELEMENT);
1.1 paf 663: };
1.4 paf 664: name_expr_with_subvar_value: STRING subvar_get_writes {
1.238 misha 665: YYSTYPE code;
1.183 paf 666: {
1.206 paf 667: change_string_literal_to_write_string_literal(*(code=$1));
668: P(*code, *$2);
1.183 paf 669: }
1.206 paf 670: $$=N();
1.229 misha 671: OA(*$$, OP::OP_STRING_POOL, code);
1.1 paf 672: };
1.212 paf 673: name_square_code_value: '[' {
674: // allow $result_or_other_variable[ letters here any time ]
675: *reinterpret_cast<bool*>(&$$)=PC.explicit_result; PC.explicit_result=false;
676: } codes {
1.213 paf 677: PC.explicit_result=*reinterpret_cast<bool*>(&$2);
1.212 paf 678: } ']' {
1.206 paf 679: $$=N();
1.267 misha 680: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT__SPECIAL
681: if(!maybe_append_simple_diving_code(*$$, *$3))
682: #endif
683: {
1.281 moko 684: OA(*$$, 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: };
1.154 parser 689: subvar_ref_name_rdive: STRING {
1.206 paf 690: $$=N();
1.229 misha 691: O(*$$, OP::OP_WITH_READ);
1.206 paf 692: P(*$$, *$1);
1.1 paf 693: };
1.259 misha 694: subvar_get_writes: subvar__get_write | subvar_get_writes subvar__get_write { $$=$1; P(*$$, *$2); };
1.1 paf 695: subvar__get_write: '$' subvar_ref_name_rdive {
696: $$=$2;
1.229 misha 697: O(*$$, OP::OP_GET_ELEMENT__WRITE);
1.42 paf 698: };
699:
1.154 parser 700: class_prefix:
701: class_static_prefix
702: | class_constructor_prefix
703: ;
1.155 parser 704: class_static_prefix: STRING ':' {
705: $$=$1; // stack: class name string
1.282 moko 706: OP::OPCODE code = OP::OP_VALUE__GET_CLASS;
1.206 paf 707: if(*LA2S(*$$) == BASE_NAME) { // pseudo BASE class
708: if(VStateless_class* base=PC.cclass->base_class()) {
1.275 moko 709: change_string_literal_value(*$$, *new String(base->type()));
1.189 paf 710: } else {
711: strcpy(PC.error, "no base class declared");
712: YYERROR;
713: }
1.282 moko 714: code = OP::OP_VALUE__GET_BASE_CLASS;
715: } else {
1.283 moko 716: // can't use get_class because it will call @autouse[] if the class wasn't loaded
717: VStateless_class* base=PC.request.classes().get(*LA2S(*$$));
718: if(base && PC.cclass->derived_from(*base))
1.282 moko 719: code = OP::OP_VALUE__GET_BASE_CLASS;
1.189 paf 720: }
1.238 misha 721: // optimized OP_VALUE+origin+string+OP_GET_CLASS => OP_VALUE__GET_CLASS+origin+string
1.282 moko 722: change_first(*$$, OP::OP_VALUE, code);
1.155 parser 723: };
724: class_constructor_prefix: class_static_prefix ':' {
1.154 parser 725: $$=$1;
1.180 paf 726: if(!PC.in_call_value) {
1.154 parser 727: strcpy(PC.error, ":: not allowed here");
728: YYERROR;
729: }
1.229 misha 730: O(*$$, OP::OP_PREPARE_TO_CONSTRUCT_OBJECT);
1.1 paf 731: };
732:
1.53 paf 733:
1.56 paf 734: /* expr */
1.53 paf 735:
1.214 paf 736: expr_value: expr;
1.56 paf 737: expr:
1.214 paf 738: double_or_STRING
1.216 paf 739: | true_value
740: | false_value
1.64 paf 741: | get_value
1.66 paf 742: | call_value
1.259 misha 743: | '"' string_inside_quotes_value '"' { $$ = $2; }
744: | '\'' string_inside_quotes_value '\'' { $$ = $2; }
1.60 paf 745: | '(' expr ')' { $$ = $2; }
746: /* stack: operand // stack: @operand */
1.259 misha 747: | '-' expr %prec NUNARY { $$=$2; O(*$$, OP::OP_NEG); }
748: | '+' expr %prec NUNARY { $$=$2; }
749: | '~' expr { $$=$2; O(*$$, OP::OP_INV); }
750: | '!' expr { $$=$2; O(*$$, OP::OP_NOT); }
751: | "def" expr { $$=$2; O(*$$, OP::OP_DEF); }
752: | "in" expr { $$=$2; O(*$$, OP::OP_IN); }
753: | "-f" expr { $$=$2; O(*$$, OP::OP_FEXISTS); }
754: | "-d" expr { $$=$2; O(*$$, OP::OP_DEXISTS); }
1.60 paf 755: /* stack: a,b // stack: a@b */
1.259 misha 756: | expr '-' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_SUB); }
757: | expr '+' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_ADD); }
758: | expr '*' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_MUL); }
759: | expr '/' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_DIV); }
760: | expr '%' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_MOD); }
761: | expr '\\' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_INTDIV); }
762: | expr "<<" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_SL); }
763: | expr ">>" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_SR); }
764: | expr '&' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_AND); }
765: | expr '|' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_OR); }
766: | expr "!|" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_XOR); }
767: | expr "&&" expr { $$=$1; OA(*$$, OP::OP_NESTED_CODE, $3); O(*$$, OP::OP_LOG_AND); }
768: | expr "||" expr { $$=$1; OA(*$$, OP::OP_NESTED_CODE, $3); O(*$$, OP::OP_LOG_OR); }
769: | expr "!||" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_LOG_XOR); }
770: | expr '<' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_LT); }
771: | expr '>' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_GT); }
772: | expr "<=" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_LE); }
773: | expr ">=" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_GE); }
774: | expr "==" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_EQ); }
775: | expr "!=" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_NE); }
776: | expr "lt" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_LT); }
777: | expr "gt" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_GT); }
778: | expr "le" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_LE); }
779: | expr "ge" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_GE); }
780: | expr "eq" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_EQ); }
781: | expr "ne" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_NE); }
782: | expr "is" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_IS); }
1.56 paf 783: ;
1.214 paf 784:
785: double_or_STRING: STRING {
1.238 misha 786: // optimized OP_STRING => OP_VALUE for doubles
1.214 paf 787: maybe_change_string_literal_to_double_literal(*($$=$1));
788: };
1.55 paf 789:
1.65 paf 790: string_inside_quotes_value: maybe_codes {
1.238 misha 791: #ifdef OPTIMIZE_BYTECODE_STRING_POOL
792: // it brakes ^if(" 09 "){...}
793: YYSTYPE code=$1;
794: $$=N();
1.267 misha 795: if(code->count()==3 && change_first(*code, OP::OP_STRING__WRITE, OP::OP_VALUE)){
1.238 misha 796: // optimized OP_STRING__WRITE+origin+value => OP_VALUE+origin+value without starting OP_STRING_POOL
797: P(*$$, *code);
798: } else {
799: OA(*$$, OP::OP_STRING_POOL, code); /* stack: empty write context */
800: }
801: #else
1.206 paf 802: $$=N();
1.229 misha 803: OA(*$$, OP::OP_STRING_POOL, $1); /* stack: empty write context */
1.238 misha 804: #endif
1.183 paf 805: /* some code that writes to that context */
806: /* context=pop; stack: context.get_string() */
1.53 paf 807: };
1.1 paf 808:
1.27 paf 809: /* basics */
1.1 paf 810:
1.81 paf 811: write_string: STRING {
1.238 misha 812: // optimized OP_STRING+OP_WRITE_VALUE => OP_STRING__WRITE
1.259 misha 813: change_string_literal_to_write_string_literal(*($$=$1));
1.54 paf 814: };
815:
1.261 moko 816: empty_value: /* empty */ { $$=VL(/*we know that we will not change it*/const_cast<VString*>(&vempty), 0, 0, 0); }
1.259 misha 817: true_value: "true" { $$ = VL(/*we know that we will not change it*/const_cast<VBool*>(&vtrue), 0, 0, 0); }
818: false_value: "false" { $$ = VL(/*we know that we will not change it*/const_cast<VBool*>(&vfalse), 0, 0, 0); }
1.216 paf 819:
1.259 misha 820: empty: /* empty */ { $$=N(); };
1.1 paf 821:
822: %%
1.105 paf 823: #endif
1.1 paf 824:
825: /*
826: 000$111(2222)00
827: 000$111{3333}00
1.9 paf 828: $,^: push,=0
1.1 paf 829: 1:( { break=pop
830: 2:( ) pop
831: 3:{ } pop
832:
833: 000^111(2222)4444{33333}4000
1.9 paf 834: $,^: push,=0
1.1 paf 835: 1:( { break=pop
836: 2:( )=4
837: 3:{ }=4
838: 4:[^({]=pop
839: */
840:
1.206 paf 841: inline void ungetc(Parse_control& pc, uint last_line_end_col) {
842: pc.source--;
843: if(pc.pos.col==0) {
844: --pc.pos.line; pc.pos.col=last_line_end_col;
845: } else
846: --pc.pos.col;
847:
848: }
849: static int yylex(YYSTYPE *lvalp, void *apc) {
850: register Parse_control& pc=*static_cast<Parse_control*>(apc);
851:
852: #define lexical_brackets_nestage pc.brackets_nestages[pc.ls_sp]
1.48 paf 853: #define RC {result=c; goto break2; }
1.1 paf 854:
1.206 paf 855: register int c;
856: int result;
1.1 paf 857:
1.206 paf 858: if(pc.pending_state) {
859: result=pc.pending_state;
860: pc.pending_state=0;
1.1 paf 861: return result;
862: }
863:
1.206 paf 864: const char *begin=pc.source;
865: Pos begin_pos=pc.pos;
1.91 paf 866: const char *end;
1.67 paf 867: int skip_analized=0;
1.50 paf 868: while(true) {
1.206 paf 869: c=*(end=(pc.source++));
870: // fprintf(stderr, "\nchar: %c %02X; nestage: %d, sp=%d", c, c, lexical_brackets_nestage, pc.sp);
1.1 paf 871:
1.208 paf 872: if(c=='\n')
1.206 paf 873: pc.pos_next_line();
1.208 paf 874: else
1.206 paf 875: pc.pos_next_c(c);
1.208 paf 876: // fprintf(stderr, "\nchar: %c file(%d:%d)", c, pc.pos.line, pc.pos.col);
1.73 paf 877:
1.208 paf 878: if(pc.pos.col==0+1 && c=='@') {
1.206 paf 879: if(pc.ls==LS_DEF_SPECIAL_BODY) {
1.175 paf 880: // @SPECIAL
881: // ...
882: // @<here =
1.206 paf 883: pop_LS(pc); // exiting from LS_DEF_SPECIAL_BODY state
1.175 paf 884: } // continuing checks
1.206 paf 885: if(pc.ls==LS_USER) {
886: push_LS(pc, LS_DEF_NAME);
1.171 parser 887: RC;
1.175 paf 888: } else // @ in first column inside some code [when could that be?]
1.171 parser 889: result=BAD_METHOD_DECL_START;
890: goto break2;
1.209 paf 891: }
892: if(c=='^') {
1.206 paf 893: if(pc.ls==LS_METHOD_AFTER) {
1.203 paf 894: // handle after-method situation
1.206 paf 895: pop_LS(pc);
1.203 paf 896: result=EON;
897: skip_analized=-1; // return to punctuation afterwards to assure it's literality
898: goto break2;
899: }
1.206 paf 900: switch(pc.ls) {
1.169 parser 901: case LS_EXPRESSION_VAR_NAME_WITH_COLON:
902: case LS_EXPRESSION_VAR_NAME_WITHOUT_COLON:
903: case LS_VAR_NAME_SIMPLE_WITH_COLON:
904: case LS_VAR_NAME_SIMPLE_WITHOUT_COLON:
905: case LS_VAR_NAME_CURLY:
906: case LS_METHOD_NAME:
1.194 paf 907: case LS_USER_COMMENT:
1.169 parser 908: case LS_DEF_COMMENT:
909: // no literals in names, please
910: break;
911: default:
1.206 paf 912: switch(*pc.source) {
1.165 parser 913: // ^escaping some punctuators
1.228 misha 914: case '^': case '$': case ';': case '@':
1.126 paf 915: case '(': case ')':
1.48 paf 916: case '[': case ']':
917: case '{': case '}':
1.172 parser 918: case '"': case ':':
1.40 paf 919: if(end!=begin) {
1.206 paf 920: if(!pc.string_start)
921: pc.string_start=begin_pos;
1.40 paf 922: // append piece till ^
1.206 paf 923: pc.string.append_strdup_know_length(begin, end-begin);
1.40 paf 924: }
1.63 paf 925: // reset piece 'begin' position & line
1.206 paf 926: begin=pc.source; // ->punctuation
927: begin_pos=pc.pos;
1.203 paf 928: // skip over _ after ^
1.206 paf 929: pc.source++; pc.pos.col++;
1.203 paf 930: // skip analysis = forced literal
931: continue;
1.114 paf 932:
933: // converting ^#HH into char(hex(HH))
934: case '#':
935: if(end!=begin) {
1.206 paf 936: if(!pc.string_start)
937: pc.string_start=begin_pos;
1.114 paf 938: // append piece till ^
1.206 paf 939: pc.string.append_strdup_know_length(begin, end-begin);
1.114 paf 940: }
941: // #HH ?
1.228 misha 942: if(pc.source[1] && isxdigit(pc.source[1]) && pc.source[2] && isxdigit(pc.source[2])) {
1.218 paf 943: char c=(char)(
1.206 paf 944: hex_value[(unsigned char)pc.source[1]]*0x10+
1.218 paf 945: hex_value[(unsigned char)pc.source[2]]);
1.206 paf 946: if(c==0) {
1.114 paf 947: result=BAD_HEX_LITERAL;
948: goto break2; // wrong hex value[no ^#00 chars allowed]: bail out
949: }
950: // append char(hex(HH))
1.206 paf 951: pc.string.append(c);
1.114 paf 952: // skip over ^#HH
1.206 paf 953: pc.source+=3;
954: pc.pos.col+=3;
1.114 paf 955: // reset piece 'begin' position & line
1.206 paf 956: begin=pc.source; // ->after ^#HH
957: begin_pos=pc.pos;
1.203 paf 958: // skip analysis = forced literal
1.114 paf 959: continue;
960: }
1.228 misha 961: // just escaped char
962: // reset piece 'begin' position & line
963: begin=pc.source;
964: begin_pos=pc.pos;
965: // skip over _ after ^
966: pc.source++; pc.pos.col++;
967: // skip analysis = forced literal
968: continue;
1.1 paf 969: }
1.169 parser 970: break;
1.203 paf 971: }
1.169 parser 972: }
1.113 paf 973: // #comment start skipping
1.206 paf 974: if(c=='#' && pc.pos.col==1) {
1.112 paf 975: if(end!=begin) {
1.206 paf 976: if(!pc.string_start)
977: pc.string_start=begin_pos;
1.112 paf 978: // append piece till #
1.206 paf 979: pc.string.append_strdup_know_length(begin, end-begin);
1.112 paf 980: }
981: // fall into COMMENT lexical state [wait for \n]
1.206 paf 982: push_LS(pc, LS_USER_COMMENT);
1.175 paf 983: continue;
1.112 paf 984: }
1.206 paf 985: switch(pc.ls) {
1.10 paf 986:
987: // USER'S = NOT OURS
1.1 paf 988: case LS_USER:
1.206 paf 989: case LS_NAME_SQUARE_PART: // name.[here].xxx
990: if(pc.trim_bof)
1.153 parser 991: switch(c) {
992: case '\n': case ' ': case '\t':
1.206 paf 993: begin=pc.source;
994: begin_pos=pc.pos;
1.152 parser 995: continue; // skip it
1.153 parser 996: default:
1.206 paf 997: pc.trim_bof=false;
1.152 parser 998: }
1.48 paf 999: switch(c) {
1000: case '$':
1.206 paf 1001: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1002: RC;
1003: case '^':
1.206 paf 1004: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1005: RC;
1.166 parser 1006: case ']':
1.206 paf 1007: if(pc.ls==LS_NAME_SQUARE_PART)
1.166 parser 1008: if(--lexical_brackets_nestage==0) {// $name.[co<]?>de<]?>
1.206 paf 1009: pop_LS(pc); // $name.[co<]>de<]!>
1.166 parser 1010: RC;
1011: }
1.160 parser 1012: break;
1.166 parser 1013: case '[': // $name.[co<[>de]
1.206 paf 1014: if(pc.ls==LS_NAME_SQUARE_PART)
1.166 parser 1015: lexical_brackets_nestage++;
1.161 parser 1016: break;
1.112 paf 1017: }
1.209 paf 1018: if(pc.explicit_result && c)
1019: switch(c) {
1.276 moko 1020: default:
1021: pc.string.append(c);
1.209 paf 1022: case '\n': case ' ': case '\t':
1023: begin=pc.source;
1024: begin_pos=pc.pos;
1.276 moko 1025: continue;
1.209 paf 1026: }
1.112 paf 1027: break;
1028:
1029: // #COMMENT
1.194 paf 1030: case LS_USER_COMMENT:
1.112 paf 1031: if(c=='\n') {
1032: // skip comment
1.206 paf 1033: begin=pc.source;
1034: begin_pos=pc.pos;
1.112 paf 1035:
1.206 paf 1036: pop_LS(pc);
1.112 paf 1037: continue;
1.1 paf 1038: }
1.48 paf 1039: break;
1040:
1041: // STRING IN EXPRESSION
1.145 parser 1042: case LS_EXPRESSION_STRING_QUOTED:
1043: case LS_EXPRESSION_STRING_APOSTROFED:
1.48 paf 1044: switch(c) {
1045: case '"':
1.145 parser 1046: case '\'':
1047: if(
1.270 moko 1048: (pc.ls == LS_EXPRESSION_STRING_QUOTED && c=='"') ||
1049: (pc.ls == LS_EXPRESSION_STRING_APOSTROFED && c=='\'') ) {
1.206 paf 1050: pop_LS(pc); //"abc". | 'abc'.
1.145 parser 1051: RC;
1052: }
1053: break;
1.48 paf 1054: case '$':
1.206 paf 1055: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1056: RC;
1057: case '^':
1.206 paf 1058: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1059: RC;
1.10 paf 1060: }
1061: break;
1062:
1063: // METHOD DEFINITION
1064: case LS_DEF_NAME:
1.48 paf 1065: switch(c) {
1066: case '[':
1.206 paf 1067: pc.ls=LS_DEF_PARAMS;
1.48 paf 1068: RC;
1069: case '\n':
1.206 paf 1070: pc.ls=LS_DEF_SPECIAL_BODY;
1.48 paf 1071: RC;
1.10 paf 1072: }
1073: break;
1.48 paf 1074:
1.10 paf 1075: case LS_DEF_PARAMS:
1.48 paf 1076: switch(c) {
1.192 paf 1077: case '$': // common error
1.193 paf 1078: result=BAD_METHOD_PARAMETER_NAME_CHARACTER;
1079: goto break2;
1.48 paf 1080: case ';':
1081: RC;
1082: case ']':
1.206 paf 1083: pc.ls=*pc.source=='['?LS_DEF_LOCALS:LS_DEF_COMMENT;
1.48 paf 1084: RC;
1.49 paf 1085: case '\n': // wrong. bailing out
1.206 paf 1086: pop_LS(pc);
1.48 paf 1087: RC;
1.10 paf 1088: }
1089: break;
1.48 paf 1090:
1.10 paf 1091: case LS_DEF_LOCALS:
1.48 paf 1092: switch(c) {
1093: case '[':
1094: case ';':
1095: RC;
1096: case ']':
1.206 paf 1097: pc.ls=LS_DEF_COMMENT;
1.48 paf 1098: RC;
1099: case '\n': // wrong. bailing out
1.206 paf 1100: pop_LS(pc);
1.48 paf 1101: RC;
1.10 paf 1102: }
1103: break;
1.48 paf 1104:
1.10 paf 1105: case LS_DEF_COMMENT:
1106: if(c=='\n') {
1.206 paf 1107: pop_LS(pc);
1.48 paf 1108: RC;
1.37 paf 1109: }
1110: break;
1111:
1.48 paf 1112: case LS_DEF_SPECIAL_BODY:
1.175 paf 1113: if(c=='\n')
1.48 paf 1114: RC;
1115: break;
1116:
1117: // (EXPRESSION)
1.69 paf 1118: case LS_VAR_ROUND:
1119: case LS_METHOD_ROUND:
1.48 paf 1120: switch(c) {
1121: case ')':
1.270 moko 1122: if(--lexical_brackets_nestage==0) {
1.206 paf 1123: if(pc.ls==LS_METHOD_ROUND) // method round param ended
1124: pc.ls=LS_METHOD_AFTER; // look for method end
1125: else // pc.ls==LS_VAR_ROUND // variable constructor ended
1126: pop_LS(pc); // return to normal life
1.270 moko 1127: }
1.48 paf 1128: RC;
1.194 paf 1129: case '#': // comment start skipping
1130: if(end!=begin) {
1.206 paf 1131: if(!pc.string_start)
1132: pc.string_start=begin_pos;
1.194 paf 1133: // append piece till #
1.206 paf 1134: pc.string.append_strdup_know_length(begin, end-begin);
1.194 paf 1135: }
1136: // fall into COMMENT lexical state [wait for \n]
1.206 paf 1137: push_LS(pc, LS_EXPRESSION_COMMENT);
1.194 paf 1138: lexical_brackets_nestage=1;
1139: continue;
1.48 paf 1140: case '$':
1.206 paf 1141: push_LS(pc, LS_EXPRESSION_VAR_NAME_WITH_COLON);
1.48 paf 1142: RC;
1143: case '^':
1.206 paf 1144: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1145: RC;
1146: case '(':
1147: lexical_brackets_nestage++;
1148: RC;
1.67 paf 1149: case '-':
1.206 paf 1150: switch(*pc.source) {
1.127 paf 1151: case 'f': // -f
1.67 paf 1152: skip_analized=1;
1153: result=FEXISTS;
1.127 paf 1154: goto break2;
1155: case 'd': // -d
1156: skip_analized=1;
1157: result=DEXISTS;
1158: goto break2;
1.191 paf 1159: default: // minus
1.67 paf 1160: result=c;
1.127 paf 1161: goto break2;
1162: }
1.67 paf 1163: goto break2;
1.173 paf 1164: case '+': case '*': case '/': case '%': case '\\':
1.58 paf 1165: case '~':
1.48 paf 1166: case ';':
1167: RC;
1.193 paf 1168: case '&': case '|':
1.206 paf 1169: if(*pc.source==c) { // && ||
1.193 paf 1170: result=c=='&'?LAND:LOR;
1.67 paf 1171: skip_analized=1;
1.58 paf 1172: } else
1173: result=c;
1174: goto break2;
1.193 paf 1175: case '!':
1.206 paf 1176: switch(pc.source[0]) {
1.193 paf 1177: case '|': // !| !||
1178: skip_analized=1;
1.206 paf 1179: if(pc.source[1]=='|') {
1.193 paf 1180: skip_analized++;
1181: result=LXOR;
1182: } else
1183: result=NXOR;
1184: goto break2;
1185: case '=': // !=
1186: skip_analized=1;
1187: result=NNE;
1188: goto break2;
1189: }
1190: RC;
1.195 paf 1191:
1192: case '<': // <<, <=, <
1.206 paf 1193: switch(*pc.source) {
1.195 paf 1194: case '<': // <[<]
1195: skip_analized=1; result=NSL; break;
1196: case '=': // <[=]
1197: skip_analized=1; result=NLE; break;
1198: default: // <[]
1199: result=c; break;
1200: }
1201: goto break2;
1202: case '>': // >>, >=, >
1.206 paf 1203: switch(*pc.source) {
1.195 paf 1204: case '>': // >[>]
1205: skip_analized=1; result=NSR; break;
1206: case '=': // >[=]
1207: skip_analized=1; result=NGE; break;
1208: default: // >[]
1209: result=c; break;
1210: }
1211: goto break2;
1212: case '=': // ==
1.206 paf 1213: switch(*pc.source) {
1.195 paf 1214: case '=': // =[=]
1215: skip_analized=1; result=NEQ; break;
1216: default: // =[]
1217: result=c; break; // not used now
1218: }
1.58 paf 1219: goto break2;
1.195 paf 1220:
1.48 paf 1221: case '"':
1.206 paf 1222: push_LS(pc, LS_EXPRESSION_STRING_QUOTED);
1.145 parser 1223: RC;
1224: case '\'':
1.206 paf 1225: push_LS(pc, LS_EXPRESSION_STRING_APOSTROFED);
1.48 paf 1226: RC;
1.50 paf 1227: case 'l': case 'g': case 'e': case 'n':
1.51 paf 1228: if(end==begin) // right after whitespace
1.206 paf 1229: if(isspace(pc.source[1])) {
1230: switch(*pc.source) {
1.117 paf 1231: // case '?': // ok [and bad cases, yacc would bark at them]
1232: case 't': // lt gt [et nt]
1233: result=c=='l'?SLT:c=='g'?SGT:BAD_STRING_COMPARISON_OPERATOR;
1234: skip_analized=1;
1235: goto break2;
1236: case 'e': // le ge ne [ee]
1237: result=c=='l'?SLE:c=='g'?SGE:c=='n'?SNE:BAD_STRING_COMPARISON_OPERATOR;
1238: skip_analized=1;
1239: goto break2;
1240: case 'q': // eq [lq gq nq]
1241: result=c=='e'?SEQ:BAD_STRING_COMPARISON_OPERATOR;
1242: skip_analized=1;
1243: goto break2;
1244: }
1.67 paf 1245: }
1246: break;
1247: case 'i':
1248: if(end==begin) // right after whitespace
1.206 paf 1249: if(isspace(pc.source[1])) {
1250: switch(pc.source[0]) {
1.117 paf 1251: case 'n': // in
1.95 paf 1252: skip_analized=1;
1253: result=IN;
1254: goto break2;
1.117 paf 1255: case 's': // is
1.95 paf 1256: skip_analized=1;
1257: result=IS;
1258: goto break2;
1259: }
1.67 paf 1260: }
1261: break;
1262: case 'd':
1263: if(end==begin) // right after whitespace
1.206 paf 1264: if(pc.source[0]=='e' && pc.source[1]=='f') { // def
1.225 misha 1265: switch(pc.source[2]){
1266: case ' ': case '\t': case '\n': case '"': case '\'': case '^': case '$': // non-quoted string without whitespace after 'def' is not allowed
1267: skip_analized=2;
1268: result=DEF;
1269: goto break2;
1270: }
1271: // error: incorrect char after 'def'
1.50 paf 1272: }
1.48 paf 1273: break;
1.216 paf 1274: case 't':
1275: if(end==begin) // right after whitespace
1.225 misha 1276: if(pc.source[0]=='r' && pc.source[1]=='u' && pc.source[2]=='e') { // true
1.216 paf 1277: skip_analized=3;
1278: result=LITERAL_TRUE;
1279: goto break2;
1280: }
1281: break;
1282: case 'f':
1283: if(end==begin) // right after whitespace
1.225 misha 1284: if(pc.source[0]=='a' && pc.source[1]=='l' && pc.source[2]=='s' && pc.source[3]=='e') { // false
1.216 paf 1285: skip_analized=4;
1286: result=LITERAL_FALSE;
1287: goto break2;
1288: }
1289: break;
1.48 paf 1290: case ' ': case '\t': case '\n':
1.63 paf 1291: if(end!=begin) { // there were a string after previous operator?
1292: result=0; // return that string
1293: goto break2;
1.48 paf 1294: }
1.63 paf 1295: // that's a leading|traling space or after-operator-space
1296: // ignoring it
1297: // reset piece 'begin' position & line
1.206 paf 1298: begin=pc.source; // after whitespace char
1299: begin_pos=pc.pos;
1.48 paf 1300: continue;
1.1 paf 1301: }
1302: break;
1.194 paf 1303: case LS_EXPRESSION_COMMENT:
1304: if(c=='(')
1305: lexical_brackets_nestage++;
1306:
1.206 paf 1307: switch(*pc.source) {
1.194 paf 1308: case '\n': case ')':
1.206 paf 1309: if(*pc.source==')')
1.194 paf 1310: if(--lexical_brackets_nestage!=0)
1311: continue;
1312:
1313: // skip comment
1.206 paf 1314: begin=pc.source;
1315: begin_pos=pc.pos;
1.194 paf 1316:
1.206 paf 1317: pop_LS(pc);
1.194 paf 1318: continue;
1319: }
1320: break;
1.1 paf 1321:
1.10 paf 1322: // VARIABLE GET/PUT/WITH
1.166 parser 1323: case LS_VAR_NAME_SIMPLE_WITH_COLON:
1324: case LS_VAR_NAME_SIMPLE_WITHOUT_COLON:
1325: case LS_EXPRESSION_VAR_NAME_WITH_COLON:
1326: case LS_EXPRESSION_VAR_NAME_WITHOUT_COLON:
1327: if(
1.206 paf 1328: pc.ls==LS_EXPRESSION_VAR_NAME_WITH_COLON ||
1329: pc.ls==LS_EXPRESSION_VAR_NAME_WITHOUT_COLON) {
1.181 paf 1330: // name in expr ends also before
1.48 paf 1331: switch(c) {
1.181 paf 1332: // expression minus
1.92 paf 1333: case '-':
1.181 paf 1334: // expression integer division
1335: case '\\':
1.206 paf 1336: pop_LS(pc);
1337: pc.ungetc();
1.48 paf 1338: result=EON;
1339: goto break2;
1340: }
1341: }
1.166 parser 1342: if(
1.206 paf 1343: pc.ls==LS_VAR_NAME_SIMPLE_WITHOUT_COLON ||
1344: pc.ls==LS_EXPRESSION_VAR_NAME_WITHOUT_COLON) {
1.142 parser 1345: // name already has ':', stop before next
1346: switch(c) {
1347: case ':':
1.206 paf 1348: pop_LS(pc);
1349: pc.ungetc();
1.142 parser 1350: result=EON;
1351: goto break2;
1352: }
1353: }
1.48 paf 1354: switch(c) {
1355: case 0:
1356: case ' ': case '\t': case '\n':
1357: case ';':
1.126 paf 1358: case ']': case '}': case ')':
1359: case '"': case '\'':
1.139 parser 1360: case '<': case '>': // these stand for HTML brackets AND expression binary ops
1.253 misha 1361: case '+': case '*': case '/': case '\\': case '%':
1.92 paf 1362: case '&': case '|':
1363: case '=': case '!':
1.99 paf 1364: // common delimiters
1.190 paf 1365: case ',': case '?': case '#':
1.220 paf 1366: // mysql column separators
1367: case '`':
1.139 parser 1368: // before call
1369: case '^':
1.206 paf 1370: pop_LS(pc);
1371: pc.ungetc();
1.13 paf 1372: result=EON;
1.1 paf 1373: goto break2;
1.48 paf 1374: case '[':
1.162 parser 1375: // $name.<[>code]
1.206 paf 1376: if(pc.pos.col>1/*not first column*/ && (
1.163 parser 1377: end[-1]=='$'/*was start of get*/ ||
1378: end[-1]==':'/*was class name delim */ ||
1379: end[-1]=='.'/*was name delim */
1.162 parser 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 '{':
1389: if(begin==end) { // ${name}, no need of EON, switching LS
1.206 paf 1390: pc.ls=LS_VAR_NAME_CURLY;
1.48 paf 1391: } else {
1.206 paf 1392: pc.ls=LS_VAR_CURLY;
1.48 paf 1393: lexical_brackets_nestage=1;
1394: }
1.69 paf 1395:
1.48 paf 1396: RC;
1397: case '(':
1.206 paf 1398: pc.ls=LS_VAR_ROUND;
1.1 paf 1399: lexical_brackets_nestage=1;
1.48 paf 1400: RC;
1401: case '.': // name part delim
1402: case '$': // name part subvar
1.160 parser 1403: case ':': // class<:>name
1.166 parser 1404: // go to _WITHOUT_COLON state variant...
1.206 paf 1405: if(pc.ls==LS_VAR_NAME_SIMPLE_WITH_COLON)
1406: pc.ls=LS_VAR_NAME_SIMPLE_WITHOUT_COLON;
1407: else if(pc.ls==LS_EXPRESSION_VAR_NAME_WITH_COLON)
1408: pc.ls=LS_EXPRESSION_VAR_NAME_WITHOUT_COLON;
1.166 parser 1409: // ...stop before next ':'
1.48 paf 1410: RC;
1.1 paf 1411: }
1412: break;
1.48 paf 1413:
1.1 paf 1414: case LS_VAR_NAME_CURLY:
1.48 paf 1415: switch(c) {
1.162 parser 1416: case '[':
1.166 parser 1417: // ${name.<[>code]}
1.206 paf 1418: push_LS(pc, LS_NAME_SQUARE_PART);
1.160 parser 1419: lexical_brackets_nestage=1;
1420: RC;
1.48 paf 1421: case '}': // ${name} finished, restoring LS
1.206 paf 1422: pop_LS(pc);
1.48 paf 1423: RC;
1424: case '.': // name part delim
1425: case '$': // name part subvar
1426: case ':': // ':name' or 'class:name'
1427: RC;
1.1 paf 1428: }
1429: break;
1.48 paf 1430:
1431: case LS_VAR_SQUARE:
1432: switch(c) {
1433: case '$':
1.206 paf 1434: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1435: RC;
1436: case '^':
1.206 paf 1437: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1438: RC;
1439: case ']':
1.1 paf 1440: if(--lexical_brackets_nestage==0) {
1.206 paf 1441: pop_LS(pc);
1.48 paf 1442: RC;
1.1 paf 1443: }
1.48 paf 1444: break;
1445: case ';': // operator_or_fmt;value delim
1446: RC;
1447: case '[':
1448: lexical_brackets_nestage++;
1449: break;
1.1 paf 1450: }
1451: break;
1.48 paf 1452:
1.1 paf 1453: case LS_VAR_CURLY:
1.48 paf 1454: switch(c) {
1455: case '$':
1.206 paf 1456: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1457: RC;
1458: case '^':
1.206 paf 1459: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1460: RC;
1461: case '}':
1.1 paf 1462: if(--lexical_brackets_nestage==0) {
1.206 paf 1463: pop_LS(pc);
1.48 paf 1464: RC;
1.1 paf 1465: }
1.48 paf 1466: break;
1467: case '{':
1.1 paf 1468: lexical_brackets_nestage++;
1.48 paf 1469: break;
1470: }
1.1 paf 1471: break;
1472:
1.10 paf 1473: // METHOD CALL
1.1 paf 1474: case LS_METHOD_NAME:
1.48 paf 1475: switch(c) {
1476: case '[':
1.166 parser 1477: // ^name.<[>code].xxx
1.206 paf 1478: if(pc.pos.col>1/*not first column*/ && (
1.163 parser 1479: end[-1]=='^'/*was start of call*/ || // never, ^[ is literal...
1480: end[-1]==':'/*was class name delim */ ||
1481: end[-1]=='.'/*was name delim */
1.162 parser 1482: )) {
1.206 paf 1483: push_LS(pc, LS_NAME_SQUARE_PART);
1.162 parser 1484: lexical_brackets_nestage=1;
1485: RC;
1486: }
1.206 paf 1487: pc.ls=LS_METHOD_SQUARE;
1.1 paf 1488: lexical_brackets_nestage=1;
1.48 paf 1489: RC;
1490: case '{':
1.206 paf 1491: pc.ls=LS_METHOD_CURLY;
1.1 paf 1492: lexical_brackets_nestage=1;
1.48 paf 1493: RC;
1.69 paf 1494: case '(':
1.206 paf 1495: pc.ls=LS_METHOD_ROUND;
1.69 paf 1496: lexical_brackets_nestage=1;
1497: RC;
1.48 paf 1498: case '.': // name part delim
1499: case '$': // name part subvar
1500: case ':': // ':name' or 'class:name'
1.170 parser 1501: case '^': // ^abc^xxx wrong. bailing out
1502: case ']': case '}': case ')': // ^abc]}) wrong. bailing out
1.207 paf 1503: case ' ': // ^if ( wrong. bailing out
1.48 paf 1504: RC;
1.1 paf 1505: }
1506: break;
1.48 paf 1507:
1508: case LS_METHOD_SQUARE:
1509: switch(c) {
1510: case '$':
1.206 paf 1511: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1512: RC;
1513: case '^':
1.206 paf 1514: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1515: RC;
1516: case ';': // param delim
1517: RC;
1518: case ']':
1.1 paf 1519: if(--lexical_brackets_nestage==0) {
1.206 paf 1520: pc.ls=LS_METHOD_AFTER;
1.48 paf 1521: RC;
1.1 paf 1522: }
1.48 paf 1523: break;
1524: case '[':
1.1 paf 1525: lexical_brackets_nestage++;
1.48 paf 1526: break;
1527: }
1.1 paf 1528: break;
1.48 paf 1529:
1.1 paf 1530: case LS_METHOD_CURLY:
1.48 paf 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);
1.94 paf 1537: RC;
1538: case ';': // param delim
1.48 paf 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: }
1.209 paf 1550: if(pc.explicit_result && c)
1551: switch(c) {
1.276 moko 1552: default:
1553: pc.string.append(c);
1.209 paf 1554: case '\n': case ' ': case '\t':
1555: begin=pc.source;
1556: begin_pos=pc.pos;
1.276 moko 1557: continue;
1.209 paf 1558: }
1.1 paf 1559: break;
1.48 paf 1560:
1.1 paf 1561: case LS_METHOD_AFTER:
1.69 paf 1562: if(c=='[') {/* ][ }[ )[ */
1.206 paf 1563: pc.ls=LS_METHOD_SQUARE;
1.1 paf 1564: lexical_brackets_nestage=1;
1.48 paf 1565: RC;
1.281 moko 1566: }
1.69 paf 1567: if(c=='{') {/* ]{ }{ ){ */
1.206 paf 1568: pc.ls=LS_METHOD_CURLY;
1.69 paf 1569: lexical_brackets_nestage=1;
1570: RC;
1.281 moko 1571: }
1.69 paf 1572: if(c=='(') {/* ]( }( )( */
1.206 paf 1573: pc.ls=LS_METHOD_ROUND;
1.1 paf 1574: lexical_brackets_nestage=1;
1.48 paf 1575: RC;
1.281 moko 1576: }
1.206 paf 1577: pop_LS(pc);
1578: pc.ungetc();
1.13 paf 1579: result=EON;
1.1 paf 1580: goto break2;
1581: }
1.9 paf 1582: if(c==0) {
1.1 paf 1583: result=-1;
1584: break;
1585: }
1586: }
1587:
1588: break2:
1.59 paf 1589: if(end!=begin) { // there is last piece?
1.258 misha 1590: if(c=='@' || c==0) // we are before LS_DEF_NAME or EOF?
1591: while(end!=begin && end[-1]=='\n') // trim all empty lines before LS_DEF_NAME and EOF
1.137 parser 1592: end--;
1.206 paf 1593: if(end!=begin && pc.ls!=LS_USER_COMMENT) { // last piece still alive and not comment?
1594: if(!pc.string_start)
1595: pc.string_start=begin_pos;
1.59 paf 1596: // append it
1.206 paf 1597: pc.string.append_strdup_know_length(begin, end-begin);
1.30 paf 1598: }
1.59 paf 1599: }
1.206 paf 1600: if(!pc.string.is_empty()) { // something accumulated?
1601: // create STRING value: array of OP_VALUE+origin+vstring
1.278 moko 1602: #ifdef SYMBOLS_CACHING
1603: Value *lookup=symbols->get(pc.string);
1604: #else
1605: Value *lookup=0;
1606: #endif
1.281 moko 1607: *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 1608: // new pieces storage
1.206 paf 1609: pc.string.clear();
1610: pc.string_start.clear();
1.58 paf 1611: // make current result be pending for next call, return STRING for now
1.206 paf 1612: pc.pending_state=result; result=STRING;
1.58 paf 1613: }
1.67 paf 1614: if(skip_analized) {
1.206 paf 1615: pc.source+=skip_analized; pc.pos.col+=skip_analized;
1.1 paf 1616: }
1.58 paf 1617: return result;
1.1 paf 1618: }
1619:
1.264 moko 1620: static int real_yyerror(Parse_control *pc, const char *s) { // Called by yyparse on error
1.281 moko 1621: strncpy(PC.error, s, MAX_STRING);
1622: return 1;
1.110 paf 1623: }
1.1 paf 1624:
1.110 paf 1625: static void yyprint(FILE *file, int type, YYSTYPE value) {
1626: if(type==STRING)
1.206 paf 1627: fprintf(file, " \"%s\"", LA2S(*value)->cstr());
1.110 paf 1628: }
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