Annotation of parser3/src/main/compile.y, revision 1.280
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:
1.280 ! moko 11: volatile const char * IDENT_COMPILE_Y = "$Id: compile.y,v 1.279 2016/05/24 15:42:43 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:
65: #define CLASS_ADD if(PC.class_add()){ \
1.275 moko 66: strncpy(PC.error, PC.cclass->type(), MAX_STRING/2); \
1.265 moko 67: strcat(PC.error, " - class is already defined"); \
68: YYERROR; \
69: }
70:
1.1 paf 71: %}
72:
1.271 moko 73: %pure-parser
74: %lex-param {Parse_control* pc}
75: %parse-param {Parse_control* pc}
1.1 paf 76:
1.13 paf 77: %token EON
1.4 paf 78: %token STRING
1.1 paf 79: %token BOGUS
1.55 paf 80:
1.58 paf 81: %token BAD_STRING_COMPARISON_OPERATOR
1.114 paf 82: %token BAD_HEX_LITERAL
1.171 parser 83: %token BAD_METHOD_DECL_START
1.193 paf 84: %token BAD_METHOD_PARAMETER_NAME_CHARACTER
1.58 paf 85:
1.59 paf 86: %token LAND "&&"
1.58 paf 87: %token LOR "||"
1.193 paf 88: %token LXOR "!||"
89: %token NXOR "!|"
1.58 paf 90:
91: %token NLE "<="
92: %token NGE ">="
93: %token NEQ "=="
94: %token NNE "!="
1.195 paf 95: %token NSL "<<"
96: %token NSR ">>"
1.58 paf 97:
98: %token SLT "lt"
99: %token SGT "gt"
100: %token SLE "le"
101: %token SGE "ge"
102: %token SEQ "eq"
103: %token SNE "ne"
104:
1.67 paf 105: %token DEF "def"
106: %token IN "in"
107: %token FEXISTS "-f"
1.127 paf 108: %token DEXISTS "-d"
1.95 paf 109: %token IS "is"
1.67 paf 110:
1.216 paf 111: %token LITERAL_TRUE "true"
112: %token LITERAL_FALSE "false"
113:
1.57 paf 114: /* logical */
1.193 paf 115: %left "!||"
1.57 paf 116: %left "||"
117: %left "&&"
1.131 paf 118: %left '<' '>' "<=" ">=" "lt" "gt" "le" "ge"
119: %left "==" "!=" "eq" "ne"
120: %left "is" "def" "in" "-f" "-d"
1.57 paf 121:
122: /* bitwise */
1.193 paf 123: %left "!|"
1.131 paf 124: %left '|'
125: %left '&'
1.202 paf 126: %left "<<" ">>"
1.57 paf 127:
1.56 paf 128: /* numerical */
1.202 paf 129: %left '+' '-'
130: %left '*' '/' '\\' '%'
131: %left NUNARY /* unary - + */
132:
133: /* out-of-group */
134: %left '~' /* bitwise */
135: %left '!' /* logical */
1.1 paf 136:
137: %%
1.195 paf 138: all:
1.10 paf 139: one_big_piece {
1.251 misha 140: Method* method=new Method(Method::CT_ANY,
1.81 paf 141: 0, 0, /*min, max numbered_params_count*/
1.75 paf 142: 0/*param_names*/, 0/*local_names*/,
143: $1/*parser_code*/, 0/*native_code*/);
1.251 misha 144: PC.cclass->set_method(PC.alias_method(main_method_name), method);
1.10 paf 145: }
146: | methods;
147:
148: methods: method | methods method;
149: one_big_piece: maybe_codes;
150:
1.34 paf 151: method: control_method | code_method;
152:
153: control_method: '@' STRING '\n'
1.132 paf 154: maybe_control_strings {
1.260 misha 155: const String& command=LA2S(*$2)->trim(String::TRIM_END);
1.34 paf 156: YYSTYPE strings_code=$4;
1.206 paf 157: if(strings_code->count()<1*OPERATIONS_PER_OPVALUE) {
1.114 paf 158: strcpy(PC.error, "@");
159: strcat(PC.error, command.cstr());
160: strcat(PC.error, " is empty");
1.37 paf 161: YYERROR;
162: }
1.74 paf 163: if(command==CLASS_NAME) {
1.206 paf 164: if(strings_code->count()==1*OPERATIONS_PER_OPVALUE) {
1.265 moko 165: CLASS_ADD;
1.73 paf 166: // new class' name
1.260 misha 167: const String& name=LA2S(*strings_code)->trim(String::TRIM_END);
1.73 paf 168: // creating the class
1.206 paf 169: VStateless_class* cclass=new VClass;
1.226 misha 170: PC.cclass_new=cclass;
1.275 moko 171: PC.cclass_new->set_type(name.cstr());
1.266 misha 172: PC.append=false;
1.73 paf 173: } else {
1.268 moko 174: strcpy(PC.error, "@" CLASS_NAME " must contain only one line with class name (contains more then one)");
1.34 paf 175: YYERROR;
176: }
1.130 paf 177: } else if(command==USE_CONTROL_METHOD_NAME) {
1.265 moko 178: CLASS_ADD;
1.273 moko 179: for(size_t i=0; i<strings_code->count(); i+=OPERATIONS_PER_OPVALUE){
180: PC.request.use_file(PC.request.main_class, LA2S(*strings_code, i)->trim(String::TRIM_END),
181: PC.request.get_used_filename(PC.file_no), strings_code->get(i+1).origin);
182: }
1.130 paf 183: } else if(command==BASE_NAME) {
1.226 misha 184: if(PC.append){
185: strcpy(PC.error, "can't set base while appending methods to class '");
1.275 moko 186: strncat(PC.error, PC.cclass->type(), MAX_STRING/2);
1.226 misha 187: strcat(PC.error, "'");
188: YYERROR;
189: }
1.265 moko 190: CLASS_ADD;
1.188 paf 191: if(PC.cclass->base_class()) { // already changed from default?
1.130 paf 192: strcpy(PC.error, "class already have a base '");
1.275 moko 193: strncat(PC.error, PC.cclass->base_class()->type(), MAX_STRING/2);
1.130 paf 194: strcat(PC.error, "'");
195: YYERROR;
196: }
1.206 paf 197: if(strings_code->count()==1*OPERATIONS_PER_OPVALUE) {
1.260 misha 198: const String& base_name=LA2S(*strings_code)->trim(String::TRIM_END);
1.252 misha 199: if(Value* base_class_value=PC.request.get_class(base_name)) {
1.206 paf 200: // @CLASS == @BASE sanity check
201: if(VStateless_class *base_class=base_class_value->get_class()) {
202: if(PC.cclass==base_class) {
1.268 moko 203: strcpy(PC.error, "@" CLASS_NAME " equals @" BASE_NAME);
1.206 paf 204: YYERROR;
205: }
206: PC.cclass->get_class()->set_base(base_class);
207: } else { // they asked to derive from a class without methods ['env' & co]
208: strcpy(PC.error, base_name.cstr());
1.268 moko 209: strcat(PC.error, ": you can not derive from this class in @" BASE_NAME);
1.206 paf 210: YYERROR;
211: }
212: } else {
1.130 paf 213: strcpy(PC.error, base_name.cstr());
1.268 moko 214: strcat(PC.error, ": undefined class in @" BASE_NAME);
1.73 paf 215: YYERROR;
216: }
1.34 paf 217: } else {
1.268 moko 218: strcpy(PC.error, "@" BASE_NAME " must contain sole name");
1.34 paf 219: YYERROR;
220: }
1.223 misha 221: } else if(command==OPTIONS_CONTROL_METHOD_NAME) {
222: for(size_t i=0; i<strings_code->count(); i+=OPERATIONS_PER_OPVALUE) {
1.260 misha 223: const String& option=LA2S(*strings_code, i)->trim(String::TRIM_END);
1.279 moko 224: if(option==Symbols::LOCALS_SYMBOL){
1.226 misha 225: PC.set_all_vars_local();
1.279 moko 226: } else if(option==Symbols::PARTIAL_SYMBOL){
1.230 misha 227: if(PC.cclass_new){
228: if(VStateless_class* existed=PC.get_existed_class(PC.cclass_new)){
229: if(!PC.reuse_existed_class(existed)){
230: strcpy(PC.error, "can't append methods to '");
1.275 moko 231: strncat(PC.error, PC.cclass_new->type(), MAX_STRING/2);
1.230 misha 232: strcat(PC.error, "' - the class wasn't marked as partial");
233: YYERROR;
234: }
1.226 misha 235: } else {
1.256 misha 236: // marks the new class as partial. we will be able to add methods here later.
1.230 misha 237: PC.cclass_new->set_partial();
1.226 misha 238: }
1.230 misha 239: } else {
1.279 moko 240: strcpy(PC.error, "'partial' option should be used straight after @" CLASS_NAME);
1.226 misha 241: YYERROR;
242: }
1.279 moko 243: } else if(option==Symbols::STATIC_SYMBOL){
1.256 misha 244: PC.set_methods_call_type(Method::CT_STATIC);
1.279 moko 245: } else if(option==Symbols::DYNAMIC_SYMBOL){
1.256 misha 246: PC.set_methods_call_type(Method::CT_DYNAMIC);
1.223 misha 247: } else {
1.226 misha 248: strcpy(PC.error, "'");
249: strncat(PC.error, option.cstr(), MAX_STRING/2);
1.279 moko 250: strcat(PC.error, "' invalid option. valid options are 'partial', 'locals', 'static' and 'dynamic'");
1.223 misha 251: YYERROR;
252: }
253: }
1.130 paf 254: } else {
255: strcpy(PC.error, "'");
256: strncat(PC.error, command.cstr(), MAX_STRING/2);
257: strcat(PC.error, "' invalid special name. valid names are "
1.268 moko 258: "'" CLASS_NAME "', '" USE_CONTROL_METHOD_NAME "', '" BASE_NAME "' and '" OPTIONS_CONTROL_METHOD_NAME "'.");
1.130 paf 259: YYERROR;
1.34 paf 260: }
261: };
1.132 paf 262: maybe_control_strings: empty | control_strings;
1.259 misha 263: control_strings: control_string | control_strings control_string { $$=$1; P(*$$, *$2); };
1.37 paf 264: control_string: maybe_string '\n';
265: maybe_string: empty | STRING;
1.34 paf 266:
1.222 misha 267: code_method: '@' STRING bracketed_maybe_strings maybe_bracketed_strings maybe_comment '\n' {
1.265 moko 268: CLASS_ADD;
1.208 paf 269: PC.explicit_result=false;
1.10 paf 270:
271: YYSTYPE params_names_code=$3;
1.206 paf 272: ArrayString* params_names=0;
273: if(int size=params_names_code->count()) {
274: params_names=new ArrayString;
275: for(int i=0; i<size; i+=OPERATIONS_PER_OPVALUE)
276: *params_names+=LA2S(*params_names_code, i);
1.75 paf 277: }
1.10 paf 278:
279: YYSTYPE locals_names_code=$4;
1.206 paf 280: ArrayString* locals_names=0;
1.223 misha 281: bool all_vars_local=false;
1.206 paf 282: if(int size=locals_names_code->count()) {
283: locals_names=new ArrayString;
1.208 paf 284: for(int i=0; i<size; i+=OPERATIONS_PER_OPVALUE) {
285: const String* local_name=LA2S(*locals_names_code, i);
1.279 moko 286: if(SYMBOLS_EQ(*local_name,RESULT_SYMBOL))
1.208 paf 287: PC.explicit_result=true;
1.279 moko 288: else if(SYMBOLS_EQ(*local_name,LOCALS_SYMBOL))
1.223 misha 289: all_vars_local=true;
1.208 paf 290: else
291: *locals_names+=local_name;
292: }
1.75 paf 293: }
1.231 misha 294: if(!all_vars_local && PC.cclass && PC.cclass->is_vars_local())
1.223 misha 295: all_vars_local=true;
1.10 paf 296:
1.208 paf 297: Method* method=new Method(
1.206 paf 298: //name,
1.257 misha 299: GetMethodCallType(PC, *$2),
1.81 paf 300: 0, 0/*min,max numbered_params_count*/,
1.76 paf 301: params_names, locals_names,
1.223 misha 302: 0/*to be filled later in next {} */, 0, all_vars_local);
1.221 misha 303:
1.208 paf 304: *reinterpret_cast<Method**>(&$$)=method;
1.222 misha 305: } maybe_codes {
1.251 misha 306: Method* method=reinterpret_cast<Method*>($7);
1.231 misha 307: // fill in the code
1.251 misha 308: method->parser_code=$8;
1.231 misha 309:
310: // register in class
311: const String& name=*LA2S(*$2);
1.251 misha 312: PC.cclass->set_method(PC.alias_method(name), method);
1.8 paf 313: };
1.10 paf 314:
315: maybe_bracketed_strings: empty | bracketed_maybe_strings;
1.259 misha 316: bracketed_maybe_strings: '[' maybe_strings ']' {$$=$2;};
1.10 paf 317: maybe_strings: empty | strings;
1.259 misha 318: strings: STRING | strings ';' STRING { $$=$1; P(*$$, *$3); };
1.10 paf 319:
320: maybe_comment: empty | STRING;
1.1 paf 321:
322: /* codes */
323:
1.10 paf 324: maybe_codes: empty | codes;
325:
1.259 misha 326: codes: code | codes code { $$=$1; P(*$$, *$2); };
1.81 paf 327: code: write_string | action;
1.209 paf 328: action: get | put | call;
1.1 paf 329:
330: /* get */
331:
1.64 paf 332: get: get_value {
1.238 misha 333: $$=N();
334: YYSTYPE code=$1;
1.247 misha 335: size_t count=code->count();
1.245 misha 336:
1.235 misha 337: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
1.247 misha 338: if(
339: count!=3
1.267 misha 340: || !change_first(*code, OP::OP_VALUE__GET_ELEMENT, /*=>*/OP::OP_VALUE__GET_ELEMENT__WRITE)
1.247 misha 341: )
1.238 misha 342: #endif
1.247 misha 343:
1.245 misha 344: #ifdef OPTIMIZE_BYTECODE_GET_SELF_ELEMENT
1.247 misha 345: if(
346: count!=3
1.267 misha 347: || !change_first(*code, OP::OP_WITH_SELF__VALUE__GET_ELEMENT, /*=>*/OP::OP_WITH_SELF__VALUE__GET_ELEMENT__WRITE)
1.247 misha 348: )
1.245 misha 349: #endif
350:
1.239 misha 351: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_ELEMENT
1.247 misha 352: if(
353: count!=5
1.267 misha 354: || !change_first(*code, OP::OP_GET_OBJECT_ELEMENT, /*=>*/OP::OP_GET_OBJECT_ELEMENT__WRITE)
1.247 misha 355: )
1.239 misha 356: #endif
357:
358: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_VAR_ELEMENT
1.247 misha 359: if(
360: count!=5
1.267 misha 361: || !change_first(*code, OP::OP_GET_OBJECT_VAR_ELEMENT, /*=>*/OP::OP_GET_OBJECT_VAR_ELEMENT__WRITE)
1.247 misha 362: )
1.238 misha 363: #endif
1.267 misha 364:
365: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT__SPECIAL
366: if(
367: !change(*code, count-1/* last */, OP::OP_GET_ELEMENT__SPECIAL, /*=>*/OP::OP_GET_ELEMENT__SPECIAL__WRITE)
368: )
369: #endif
370:
1.247 misha 371: {
1.267 misha 372: change_or_append(*code, count-1 /* last */,
373: OP::OP_GET_ELEMENT, /*=>*/OP::OP_GET_ELEMENT__WRITE,
1.247 misha 374: /*or */OP::OP_WRITE_VALUE
375: ); /* value=pop; wcontext.write(value) */
1.246 misha 376: }
1.247 misha 377:
1.238 misha 378: P(*$$, *code);
1.1 paf 379: };
1.259 misha 380: get_value: '$' get_name_value { $$=$2; };
1.64 paf 381: get_name_value: name_without_curly_rdive EON | name_in_curly_rdive;
1.259 misha 382: name_in_curly_rdive: '{' name_without_curly_rdive '}' { $$=$2; };
1.44 paf 383: name_without_curly_rdive:
384: name_without_curly_rdive_read
385: | name_without_curly_rdive_class;
1.19 paf 386: name_without_curly_rdive_read: name_without_curly_rdive_code {
1.206 paf 387: $$=N();
1.238 misha 388: YYSTYPE diving_code=$1;
1.239 misha 389: size_t count=diving_code->count();
1.247 misha 390:
391: if(maybe_make_self(*$$, *diving_code, count)) {
392: // $self.
393: } else
1.239 misha 394:
395: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_ELEMENT
1.247 misha 396: if(maybe_make_get_object_element(*$$, *diving_code, count)){
1.245 misha 397: // optimization for $object.field + ^object.method[
1.247 misha 398: } else
1.238 misha 399: #endif
1.239 misha 400:
401: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_VAR_ELEMENT
1.247 misha 402: if(maybe_make_get_object_var_element(*$$, *diving_code, count)){
1.245 misha 403: // optimization for $object.$var
1.247 misha 404: } else
1.238 misha 405: #endif
1.239 misha 406:
407: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
1.248 misha 408: if(
409: count>=4
410: && (*diving_code)[0].code==OP::OP_VALUE
411: && (*diving_code)[3].code==OP::OP_GET_ELEMENT
412: ){
413: // optimization
1.239 misha 414: O(*$$,
1.247 misha 415: (PC.in_call_value && count==4)
1.239 misha 416: ? OP::OP_VALUE__GET_ELEMENT_OR_OPERATOR // ^object[ : OP_VALUE+origin+string+OP_GET_ELEMENT => OP_VALUE__GET_ELEMENT_OR_OPERATOR+origin+string
417: : OP::OP_VALUE__GET_ELEMENT // $object : OP_VALUE+origin+string+OP_GET_ELEMENT => OP_VALUE__GET_ELEMENT+origin+string
418: );
419: P(*$$, *diving_code, 1/*offset*/, 2/*limit*/); // copy origin+value
1.247 misha 420: if(count>4)
421: P(*$$, *diving_code, 4); // copy tail
1.239 misha 422: } else {
423: O(*$$, OP::OP_WITH_READ); /* stack: starting context */
424: P(*$$, *diving_code);
425: }
1.233 misha 426: #else
1.247 misha 427: {
1.238 misha 428: O(*$$, OP::OP_WITH_READ); /* stack: starting context */
1.179 paf 429:
1.238 misha 430: // ^if OP_ELEMENT => ^if OP_ELEMENT_OR_OPERATOR
431: // optimized OP_VALUE+origin+string+OP_GET_ELEMENT. => OP_VALUE+origin+string+OP_GET_ELEMENT_OR_OPERATOR.
1.239 misha 432: if(PC.in_call_value && count==4)
433: diving_code->put(count-1, OP::OP_GET_ELEMENT_OR_OPERATOR);
1.206 paf 434: P(*$$, *diving_code);
1.239 misha 435: }
1.233 misha 436: #endif
1.22 paf 437: /* diving code; stack: current context */
1.1 paf 438: };
1.259 misha 439: name_without_curly_rdive_class: class_prefix name_without_curly_rdive_code { $$=$1; P(*$$, *$2); };
440: name_without_curly_rdive_code: name_advance2 | name_path name_advance2 { $$=$1; P(*$$, *$2); };
1.1 paf 441:
442: /* put */
443:
1.81 paf 444: put: '$' name_expr_wdive construct {
1.241 misha 445: $$=N();
1.244 misha 446: #ifdef OPTIMIZE_BYTECODE_CONSTRUCT
447: if(maybe_optimize_construct(*$$, *$2, *$3)){
1.246 misha 448: // $a(expr), $.a(expr), $a[value], $.a[value], $self.a[value], $self.a(expr)
1.241 misha 449: } else
450: #endif
451: {
452: P(*$$, *$2); /* stack: context,name */
453: P(*$$, *$3); /* stack: context,name,constructor_value */
454: }
1.20 paf 455: };
1.44 paf 456: name_expr_wdive:
1.157 parser 457: name_expr_wdive_root
458: | name_expr_wdive_write
1.44 paf 459: | name_expr_wdive_class;
1.157 parser 460: name_expr_wdive_root: name_expr_dive_code {
1.206 paf 461: $$=N();
1.238 misha 462: YYSTYPE diving_code=$1;
1.247 misha 463: size_t count=diving_code->count();
464:
465: if(maybe_make_self(*$$, *diving_code, count)) {
466: // $self.
467: } else
468: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
469: if(
470: count>=4
471: && (*diving_code)[0].code==OP::OP_VALUE
472: && (*diving_code)[3].code==OP::OP_GET_ELEMENT
473: ){
474: O(*$$, OP::OP_WITH_ROOT__VALUE__GET_ELEMENT);
475: P(*$$, *diving_code, 1/*offset*/, 2/*limit*/); // copy origin+value
476: if(count>4)
477: P(*$$, *diving_code, 4); // tail
478: } else
479: #endif
480: {
1.229 misha 481: O(*$$, OP::OP_WITH_ROOT); /* stack: starting context */
1.206 paf 482: P(*$$, *diving_code);
1.23 paf 483: }
484: /* diving code; stack: current context */
1.156 parser 485: };
1.157 parser 486: name_expr_wdive_write: '.' name_expr_dive_code {
1.206 paf 487: $$=N();
1.229 misha 488: O(*$$, OP::OP_WITH_WRITE); /* stack: starting context */
1.206 paf 489: P(*$$, *$2); /* diving code; stack: context,name */
1.20 paf 490: };
1.259 misha 491: name_expr_wdive_class: class_prefix name_expr_dive_code { $$=$1; P(*$$, *$2); };
1.20 paf 492:
1.244 misha 493: construct:
1.163 parser 494: construct_square
495: | construct_round
496: | construct_curly
1.149 parser 497: ;
1.211 paf 498: construct_square: '[' {
499: // allow $result_or_other_variable[ letters here any time ]
500: *reinterpret_cast<bool*>(&$$)=PC.explicit_result; PC.explicit_result=false;
501: } any_constructor_code_value {
1.213 paf 502: PC.explicit_result=*reinterpret_cast<bool*>(&$2);
1.211 paf 503: } ']' {
1.149 parser 504: // stack: context, name
1.211 paf 505: $$=$3; // stack: context, name, value
1.229 misha 506: O(*$$, OP::OP_CONSTRUCT_VALUE); /* value=pop; name=pop; context=pop; construct(context,name,value) */
1.81 paf 507: }
508: ;
1.149 parser 509: construct_round: '(' expr_value ')' {
1.206 paf 510: $$=N();
1.229 misha 511: O(*$$, OP::OP_PREPARE_TO_EXPRESSION);
1.149 parser 512: // stack: context, name
1.206 paf 513: P(*$$, *$2); // stack: context, name, value
1.229 misha 514: O(*$$, OP::OP_CONSTRUCT_EXPR); /* value=pop->as_expr_result; name=pop; context=pop; construct(context,name,value) */
1.81 paf 515: }
1.52 paf 516: ;
1.149 parser 517: construct_curly: '{' maybe_codes '}' {
518: // stack: context, name
1.206 paf 519: $$=N();
1.229 misha 520: OA(*$$, OP::OP_CURLY_CODE__CONSTRUCT, $2); /* code=pop; name=pop; context=pop; construct(context,name,junction(code)) */
1.149 parser 521: };
522:
1.55 paf 523: any_constructor_code_value:
1.261 moko 524: empty_value /* optimized $var[] case */
1.52 paf 525: | STRING /* optimized $var[STRING] case */
1.55 paf 526: | constructor_code_value /* $var[something complex] */
1.1 paf 527: ;
1.55 paf 528: constructor_code_value: constructor_code {
1.206 paf 529: $$=N();
1.229 misha 530: OA(*$$, OP::OP_OBJECT_POOL, $1); /* stack: empty write context */
1.183 paf 531: /* some code that writes to that context */
532: /* context=pop; stack: context.value() */
1.1 paf 533: };
1.55 paf 534: constructor_code: codes__excluding_sole_str_literal;
1.259 misha 535: codes__excluding_sole_str_literal: action | code codes { $$=$1; P(*$$, *$2); };
1.27 paf 536:
1.1 paf 537: /* call */
538:
1.66 paf 539: call: call_value {
1.267 misha 540: size_t count=$1->count();
1.238 misha 541: #ifdef OPTIMIZE_BYTECODE_CUT_REM_OPERATOR
1.267 misha 542: if(count)
1.238 misha 543: #endif
544: {
545: $$=$1; /* stack: value */
1.267 misha 546: if(!change_first(*$$, OP::OP_CONSTRUCT_OBJECT, /*=>*/OP::OP_CONSTRUCT_OBJECT__WRITE))
547: change_or_append(*$$, count-2 /* second last */,
548: OP::OP_CALL, /*=>*/ OP::OP_CALL__WRITE,
1.249 misha 549: /*or */OP::OP_WRITE_VALUE); /* value=pop; wcontext.write(value) */
1.238 misha 550: }
1.66 paf 551: };
1.177 paf 552: call_value: '^' {
1.180 paf 553: PC.in_call_value=true;
1.177 paf 554: }
555: call_name {
1.180 paf 556: PC.in_call_value=false;
1.177 paf 557: }
1.154 parser 558: store_params EON { /* ^field.$method{vasya} */
1.238 misha 559: #ifdef OPTIMIZE_BYTECODE_CUT_REM_OPERATOR
1.242 misha 560: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
1.238 misha 561: const String* operator_name=LA2S(*$3, 0, OP::OP_VALUE__GET_ELEMENT_OR_OPERATOR);
1.242 misha 562: #else
563: const String* operator_name=LA2S(*$3, 1);
564: #endif
1.279 moko 565: if(operator_name && SYMBOLS_EQ(*operator_name,REM_SYMBOL)){
1.238 misha 566: $$=N();
567: } else
568: #endif
569: {
570: YYSTYPE params_code=$5;
571: if(params_code->count()==3) { // probably [] case. [OP::OP_VALUE+origin+Void]
572: if(Value* value=LA2V(*params_code)) // it is OP_VALUE+origin+value?
1.261 moko 573: if(const String * string=value->get_string())
574: if(string->is_empty()) // value is empty string?
575: params_code=0; // ^zzz[] case. don't append lone empty param.
1.238 misha 576: }
577: /* stack: context, method_junction */
1.249 misha 578:
579: YYSTYPE var_code=$3;
580: if(
581: var_code->count()==8
582: && (*var_code)[0].code==OP::OP_VALUE__GET_CLASS
583: && (*var_code)[3].code==OP::OP_PREPARE_TO_CONSTRUCT_OBJECT
584: && (*var_code)[4].code==OP::OP_VALUE
1.272 moko 585: #ifdef FEATURE_GET_ELEMENT4CALL
586: && (*var_code)[7].code==OP::OP_GET_ELEMENT4CALL
587: #else
1.249 misha 588: && (*var_code)[7].code==OP::OP_GET_ELEMENT
1.272 moko 589: #endif
1.249 misha 590: ){
1.267 misha 591: $$=N();
1.249 misha 592: O(*$$, OP::OP_CONSTRUCT_OBJECT);
593: P(*$$, *var_code, 1/*offset*/, 2/*limit*/); // class name
594: P(*$$, *var_code, 5/*offset*/, 2/*limit*/); // constructor name
595: OA(*$$, params_code);
596: } else
597: {
598: $$=var_code; /* with_xxx,diving code; stack: context,method_junction */
599: OA(*$$, OP::OP_CALL, params_code); // method_frame=make frame(pop junction); ncontext=pop; call(ncontext,method_frame) stack: value
600: }
1.238 misha 601: }
1.1 paf 602: };
603:
1.272 moko 604: call_name: name_without_curly_rdive {
605: #ifdef FEATURE_GET_ELEMENT4CALL
606: size_t count=$1->count();
607: if(count){
608: $$=$1;
609: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_ELEMENT
610: !(count==5 && change_first(*$$, OP::OP_GET_OBJECT_ELEMENT, OP::OP_GET_OBJECT_ELEMENT4CALL)) &&
611: #endif
612: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_VAR_ELEMENT
613: !(count==5 && change_first(*$$, OP::OP_GET_OBJECT_VAR_ELEMENT, OP::OP_GET_OBJECT_VAR_ELEMENT4CALL)) &&
614: #endif
615: !change(*$$, count-1, OP::OP_GET_ELEMENT, OP::OP_GET_ELEMENT4CALL);
616: }
617: #endif
618: };
1.38 paf 619:
1.259 misha 620: store_params: store_param | store_params store_param { $$=$1; P(*$$, *$2); };
1.69 paf 621: store_param:
622: store_square_param
623: | store_round_param
624: | store_curly_param
1.31 paf 625: ;
1.210 paf 626: store_square_param: '[' {
1.211 paf 627: // allow ^call[ letters here any time ]
1.210 paf 628: *reinterpret_cast<bool*>(&$$)=PC.explicit_result; PC.explicit_result=false;
629: } store_code_param_parts {
1.213 paf 630: PC.explicit_result=*reinterpret_cast<bool*>(&$2);
1.259 misha 631: } ']' {$$=$3;};
632: store_round_param: '(' store_expr_param_parts ')' {$$=$2;};
633: store_curly_param: '{' store_curly_param_parts '}' {$$=$2;};
1.69 paf 634: store_code_param_parts:
635: store_code_param_part
1.259 misha 636: | store_code_param_parts ';' store_code_param_part { $$=$1; P(*$$, *$3); }
1.69 paf 637: ;
638: store_expr_param_parts:
639: store_expr_param_part
1.259 misha 640: | store_expr_param_parts ';' store_expr_param_part { $$=$1; P(*$$, *$3); }
1.69 paf 641: ;
1.94 paf 642: store_curly_param_parts:
643: store_curly_param_part
1.259 misha 644: | store_curly_param_parts ';' store_curly_param_part { $$=$1; P(*$$, *$3); }
1.94 paf 645: ;
1.120 paf 646: store_code_param_part: code_param_value {
1.32 paf 647: $$=$1;
1.120 paf 648: };
1.214 paf 649: store_expr_param_part: expr_value {
650: YYSTYPE expr_code=$1;
1.215 paf 651: if(expr_code->count()==3
1.234 misha 652: && (*expr_code)[0].code==OP::OP_VALUE) { // optimizing (double/bool/incidently 'string' too) case. [OP::OP_VALUE+origin+Double]. no evaluating
1.214 paf 653: $$=expr_code;
654: } else {
1.238 misha 655: YYSTYPE code=N();
1.229 misha 656: O(*code, OP::OP_PREPARE_TO_EXPRESSION);
1.214 paf 657: P(*code, *expr_code);
1.229 misha 658: O(*code, OP::OP_WRITE_EXPR_RESULT);
1.214 paf 659: $$=N();
1.229 misha 660: OA(*$$, OP::OP_EXPR_CODE__STORE_PARAM, code);
1.214 paf 661: }
1.69 paf 662: };
1.94 paf 663: store_curly_param_part: maybe_codes {
1.206 paf 664: $$=N();
1.229 misha 665: OA(*$$, OP::OP_CURLY_CODE__STORE_PARAM, $1);
1.94 paf 666: };
1.120 paf 667: code_param_value:
1.261 moko 668: empty_value /* optimized [;...] case */
1.120 paf 669: | STRING /* optimized [STRING] case */
670: | constructor_code_value /* [something complex] */
671: ;
1.1 paf 672:
673: /* name */
674:
1.259 misha 675: name_expr_dive_code: name_expr_value | name_path name_expr_value { $$=$1; P(*$$, *$2); };
1.1 paf 676:
1.259 misha 677: name_path: name_step | name_path name_step { $$=$1; P(*$$, *$2); };
1.1 paf 678: name_step: name_advance1 '.';
679: name_advance1: name_expr_value {
1.177 paf 680: // we know that name_advance1 not called from ^xxx context
681: // so we'll not check for operator call possibility as we do in name_advance2
682:
1.1 paf 683: /* stack: context */
684: $$=$1; /* stack: context,name */
1.267 misha 685: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT__SPECIAL
686: O(*$$, is_special_element(*$$) ? OP::OP_GET_ELEMENT__SPECIAL : OP::OP_GET_ELEMENT);
687: #else
1.229 misha 688: O(*$$, OP::OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */
1.267 misha 689: #endif
1.1 paf 690: };
691: name_advance2: name_expr_value {
692: /* stack: context */
693: $$=$1; /* stack: context,name */
1.267 misha 694: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT__SPECIAL
695: O(*$$, is_special_element(*$$) ? OP::OP_GET_ELEMENT__SPECIAL : OP::OP_GET_ELEMENT);
696: #else
1.229 misha 697: O(*$$, OP::OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */
1.267 misha 698: #endif
1.1 paf 699: }
1.4 paf 700: | STRING BOGUS
1.1 paf 701: ;
702: name_expr_value:
1.4 paf 703: STRING /* subname_is_const */
1.1 paf 704: | name_expr_subvar_value /* $subname_is_var_value */
1.160 parser 705: | name_expr_with_subvar_value /* xxx$part_of_subname_is_var_value */
1.166 parser 706: | name_square_code_value /* [codes] */
1.1 paf 707: ;
708: name_expr_subvar_value: '$' subvar_ref_name_rdive {
709: $$=$2;
1.229 misha 710: O(*$$, OP::OP_GET_ELEMENT);
1.1 paf 711: };
1.4 paf 712: name_expr_with_subvar_value: STRING subvar_get_writes {
1.238 misha 713: YYSTYPE code;
1.183 paf 714: {
1.206 paf 715: change_string_literal_to_write_string_literal(*(code=$1));
716: P(*code, *$2);
1.183 paf 717: }
1.206 paf 718: $$=N();
1.229 misha 719: OA(*$$, OP::OP_STRING_POOL, code);
1.1 paf 720: };
1.212 paf 721: name_square_code_value: '[' {
722: // allow $result_or_other_variable[ letters here any time ]
723: *reinterpret_cast<bool*>(&$$)=PC.explicit_result; PC.explicit_result=false;
724: } codes {
1.213 paf 725: PC.explicit_result=*reinterpret_cast<bool*>(&$2);
1.212 paf 726: } ']' {
1.206 paf 727: $$=N();
1.267 misha 728: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT__SPECIAL
729: if(!maybe_append_simple_diving_code(*$$, *$3))
730: #endif
731: {
1.229 misha 732: OA(*$$, OP::OP_OBJECT_POOL, $3); /* stack: empty write context */
1.183 paf 733: /* some code that writes to that context */
734: /* context=pop; stack: context.value() */
1.267 misha 735: }
1.160 parser 736: };
1.154 parser 737: subvar_ref_name_rdive: STRING {
1.206 paf 738: $$=N();
1.229 misha 739: O(*$$, OP::OP_WITH_READ);
1.206 paf 740: P(*$$, *$1);
1.1 paf 741: };
1.259 misha 742: subvar_get_writes: subvar__get_write | subvar_get_writes subvar__get_write { $$=$1; P(*$$, *$2); };
1.1 paf 743: subvar__get_write: '$' subvar_ref_name_rdive {
744: $$=$2;
1.229 misha 745: O(*$$, OP::OP_GET_ELEMENT__WRITE);
1.42 paf 746: };
747:
1.154 parser 748: class_prefix:
749: class_static_prefix
750: | class_constructor_prefix
751: ;
1.155 parser 752: class_static_prefix: STRING ':' {
753: $$=$1; // stack: class name string
1.206 paf 754: if(*LA2S(*$$) == BASE_NAME) { // pseudo BASE class
755: if(VStateless_class* base=PC.cclass->base_class()) {
1.275 moko 756: change_string_literal_value(*$$, *new String(base->type()));
1.189 paf 757: } else {
758: strcpy(PC.error, "no base class declared");
759: YYERROR;
760: }
761: }
1.238 misha 762: // optimized OP_VALUE+origin+string+OP_GET_CLASS => OP_VALUE__GET_CLASS+origin+string
1.267 misha 763: change_first(*$$, OP::OP_VALUE, OP::OP_VALUE__GET_CLASS);
1.155 parser 764: };
765: class_constructor_prefix: class_static_prefix ':' {
1.154 parser 766: $$=$1;
1.180 paf 767: if(!PC.in_call_value) {
1.154 parser 768: strcpy(PC.error, ":: not allowed here");
769: YYERROR;
770: }
1.229 misha 771: O(*$$, OP::OP_PREPARE_TO_CONSTRUCT_OBJECT);
1.1 paf 772: };
773:
1.53 paf 774:
1.56 paf 775: /* expr */
1.53 paf 776:
1.214 paf 777: expr_value: expr;
1.56 paf 778: expr:
1.214 paf 779: double_or_STRING
1.216 paf 780: | true_value
781: | false_value
1.64 paf 782: | get_value
1.66 paf 783: | call_value
1.259 misha 784: | '"' string_inside_quotes_value '"' { $$ = $2; }
785: | '\'' string_inside_quotes_value '\'' { $$ = $2; }
1.60 paf 786: | '(' expr ')' { $$ = $2; }
787: /* stack: operand // stack: @operand */
1.259 misha 788: | '-' expr %prec NUNARY { $$=$2; O(*$$, OP::OP_NEG); }
789: | '+' expr %prec NUNARY { $$=$2; }
790: | '~' expr { $$=$2; O(*$$, OP::OP_INV); }
791: | '!' expr { $$=$2; O(*$$, OP::OP_NOT); }
792: | "def" expr { $$=$2; O(*$$, OP::OP_DEF); }
793: | "in" expr { $$=$2; O(*$$, OP::OP_IN); }
794: | "-f" expr { $$=$2; O(*$$, OP::OP_FEXISTS); }
795: | "-d" expr { $$=$2; O(*$$, OP::OP_DEXISTS); }
1.60 paf 796: /* stack: a,b // stack: a@b */
1.259 misha 797: | expr '-' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_SUB); }
798: | expr '+' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_ADD); }
799: | expr '*' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_MUL); }
800: | expr '/' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_DIV); }
801: | expr '%' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_MOD); }
802: | expr '\\' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_INTDIV); }
803: | expr "<<" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_SL); }
804: | expr ">>" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_SR); }
805: | expr '&' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_AND); }
806: | expr '|' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_OR); }
807: | expr "!|" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_XOR); }
808: | expr "&&" expr { $$=$1; OA(*$$, OP::OP_NESTED_CODE, $3); O(*$$, OP::OP_LOG_AND); }
809: | expr "||" expr { $$=$1; OA(*$$, OP::OP_NESTED_CODE, $3); O(*$$, OP::OP_LOG_OR); }
810: | expr "!||" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_LOG_XOR); }
811: | expr '<' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_LT); }
812: | expr '>' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_GT); }
813: | expr "<=" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_LE); }
814: | expr ">=" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_GE); }
815: | expr "==" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_EQ); }
816: | expr "!=" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_NE); }
817: | expr "lt" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_LT); }
818: | expr "gt" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_GT); }
819: | expr "le" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_LE); }
820: | expr "ge" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_GE); }
821: | expr "eq" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_EQ); }
822: | expr "ne" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_NE); }
823: | expr "is" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_IS); }
1.56 paf 824: ;
1.214 paf 825:
826: double_or_STRING: STRING {
1.238 misha 827: // optimized OP_STRING => OP_VALUE for doubles
1.214 paf 828: maybe_change_string_literal_to_double_literal(*($$=$1));
829: };
1.55 paf 830:
1.65 paf 831: string_inside_quotes_value: maybe_codes {
1.238 misha 832: #ifdef OPTIMIZE_BYTECODE_STRING_POOL
833: // it brakes ^if(" 09 "){...}
834: YYSTYPE code=$1;
835: $$=N();
1.267 misha 836: if(code->count()==3 && change_first(*code, OP::OP_STRING__WRITE, OP::OP_VALUE)){
1.238 misha 837: // optimized OP_STRING__WRITE+origin+value => OP_VALUE+origin+value without starting OP_STRING_POOL
838: P(*$$, *code);
839: } else {
840: OA(*$$, OP::OP_STRING_POOL, code); /* stack: empty write context */
841: }
842: #else
1.206 paf 843: $$=N();
1.229 misha 844: OA(*$$, OP::OP_STRING_POOL, $1); /* stack: empty write context */
1.238 misha 845: #endif
1.183 paf 846: /* some code that writes to that context */
847: /* context=pop; stack: context.get_string() */
1.53 paf 848: };
1.1 paf 849:
1.27 paf 850: /* basics */
1.1 paf 851:
1.81 paf 852: write_string: STRING {
1.238 misha 853: // optimized OP_STRING+OP_WRITE_VALUE => OP_STRING__WRITE
1.259 misha 854: change_string_literal_to_write_string_literal(*($$=$1));
1.54 paf 855: };
856:
1.261 moko 857: empty_value: /* empty */ { $$=VL(/*we know that we will not change it*/const_cast<VString*>(&vempty), 0, 0, 0); }
1.259 misha 858: true_value: "true" { $$ = VL(/*we know that we will not change it*/const_cast<VBool*>(&vtrue), 0, 0, 0); }
859: false_value: "false" { $$ = VL(/*we know that we will not change it*/const_cast<VBool*>(&vfalse), 0, 0, 0); }
1.216 paf 860:
1.259 misha 861: empty: /* empty */ { $$=N(); };
1.1 paf 862:
863: %%
1.105 paf 864: #endif
1.1 paf 865:
866: /*
867: 000$111(2222)00
868: 000$111{3333}00
1.9 paf 869: $,^: push,=0
1.1 paf 870: 1:( { break=pop
871: 2:( ) pop
872: 3:{ } pop
873:
874: 000^111(2222)4444{33333}4000
1.9 paf 875: $,^: push,=0
1.1 paf 876: 1:( { break=pop
877: 2:( )=4
878: 3:{ }=4
879: 4:[^({]=pop
880: */
881:
1.206 paf 882: inline void ungetc(Parse_control& pc, uint last_line_end_col) {
883: pc.source--;
884: if(pc.pos.col==0) {
885: --pc.pos.line; pc.pos.col=last_line_end_col;
886: } else
887: --pc.pos.col;
888:
889: }
890: static int yylex(YYSTYPE *lvalp, void *apc) {
891: register Parse_control& pc=*static_cast<Parse_control*>(apc);
892:
893: #define lexical_brackets_nestage pc.brackets_nestages[pc.ls_sp]
1.48 paf 894: #define RC {result=c; goto break2; }
1.1 paf 895:
1.206 paf 896: register int c;
897: int result;
1.1 paf 898:
1.206 paf 899: if(pc.pending_state) {
900: result=pc.pending_state;
901: pc.pending_state=0;
1.1 paf 902: return result;
903: }
904:
1.206 paf 905: const char *begin=pc.source;
906: Pos begin_pos=pc.pos;
1.91 paf 907: const char *end;
1.67 paf 908: int skip_analized=0;
1.50 paf 909: while(true) {
1.206 paf 910: c=*(end=(pc.source++));
911: // fprintf(stderr, "\nchar: %c %02X; nestage: %d, sp=%d", c, c, lexical_brackets_nestage, pc.sp);
1.1 paf 912:
1.208 paf 913: if(c=='\n')
1.206 paf 914: pc.pos_next_line();
1.208 paf 915: else
1.206 paf 916: pc.pos_next_c(c);
1.208 paf 917: // fprintf(stderr, "\nchar: %c file(%d:%d)", c, pc.pos.line, pc.pos.col);
1.73 paf 918:
1.208 paf 919: if(pc.pos.col==0+1 && c=='@') {
1.206 paf 920: if(pc.ls==LS_DEF_SPECIAL_BODY) {
1.175 paf 921: // @SPECIAL
922: // ...
923: // @<here =
1.206 paf 924: pop_LS(pc); // exiting from LS_DEF_SPECIAL_BODY state
1.175 paf 925: } // continuing checks
1.206 paf 926: if(pc.ls==LS_USER) {
927: push_LS(pc, LS_DEF_NAME);
1.171 parser 928: RC;
1.175 paf 929: } else // @ in first column inside some code [when could that be?]
1.171 parser 930: result=BAD_METHOD_DECL_START;
931: goto break2;
1.209 paf 932: }
933: if(c=='^') {
1.206 paf 934: if(pc.ls==LS_METHOD_AFTER) {
1.203 paf 935: // handle after-method situation
1.206 paf 936: pop_LS(pc);
1.203 paf 937: result=EON;
938: skip_analized=-1; // return to punctuation afterwards to assure it's literality
939: goto break2;
940: }
1.206 paf 941: switch(pc.ls) {
1.169 parser 942: case LS_EXPRESSION_VAR_NAME_WITH_COLON:
943: case LS_EXPRESSION_VAR_NAME_WITHOUT_COLON:
944: case LS_VAR_NAME_SIMPLE_WITH_COLON:
945: case LS_VAR_NAME_SIMPLE_WITHOUT_COLON:
946: case LS_VAR_NAME_CURLY:
947: case LS_METHOD_NAME:
1.194 paf 948: case LS_USER_COMMENT:
1.169 parser 949: case LS_DEF_COMMENT:
950: // no literals in names, please
951: break;
952: default:
1.206 paf 953: switch(*pc.source) {
1.165 parser 954: // ^escaping some punctuators
1.228 misha 955: case '^': case '$': case ';': case '@':
1.126 paf 956: case '(': case ')':
1.48 paf 957: case '[': case ']':
958: case '{': case '}':
1.172 parser 959: case '"': case ':':
1.40 paf 960: if(end!=begin) {
1.206 paf 961: if(!pc.string_start)
962: pc.string_start=begin_pos;
1.40 paf 963: // append piece till ^
1.206 paf 964: pc.string.append_strdup_know_length(begin, end-begin);
1.40 paf 965: }
1.63 paf 966: // reset piece 'begin' position & line
1.206 paf 967: begin=pc.source; // ->punctuation
968: begin_pos=pc.pos;
1.203 paf 969: // skip over _ after ^
1.206 paf 970: pc.source++; pc.pos.col++;
1.203 paf 971: // skip analysis = forced literal
972: continue;
1.114 paf 973:
974: // converting ^#HH into char(hex(HH))
975: case '#':
976: if(end!=begin) {
1.206 paf 977: if(!pc.string_start)
978: pc.string_start=begin_pos;
1.114 paf 979: // append piece till ^
1.206 paf 980: pc.string.append_strdup_know_length(begin, end-begin);
1.114 paf 981: }
982: // #HH ?
1.228 misha 983: if(pc.source[1] && isxdigit(pc.source[1]) && pc.source[2] && isxdigit(pc.source[2])) {
1.218 paf 984: char c=(char)(
1.206 paf 985: hex_value[(unsigned char)pc.source[1]]*0x10+
1.218 paf 986: hex_value[(unsigned char)pc.source[2]]);
1.206 paf 987: if(c==0) {
1.114 paf 988: result=BAD_HEX_LITERAL;
989: goto break2; // wrong hex value[no ^#00 chars allowed]: bail out
990: }
991: // append char(hex(HH))
1.206 paf 992: pc.string.append(c);
1.114 paf 993: // skip over ^#HH
1.206 paf 994: pc.source+=3;
995: pc.pos.col+=3;
1.114 paf 996: // reset piece 'begin' position & line
1.206 paf 997: begin=pc.source; // ->after ^#HH
998: begin_pos=pc.pos;
1.203 paf 999: // skip analysis = forced literal
1.114 paf 1000: continue;
1001: }
1.228 misha 1002: // just escaped char
1003: // reset piece 'begin' position & line
1004: begin=pc.source;
1005: begin_pos=pc.pos;
1006: // skip over _ after ^
1007: pc.source++; pc.pos.col++;
1008: // skip analysis = forced literal
1009: continue;
1.1 paf 1010: }
1.169 parser 1011: break;
1.203 paf 1012: }
1.169 parser 1013: }
1.113 paf 1014: // #comment start skipping
1.206 paf 1015: if(c=='#' && pc.pos.col==1) {
1.112 paf 1016: if(end!=begin) {
1.206 paf 1017: if(!pc.string_start)
1018: pc.string_start=begin_pos;
1.112 paf 1019: // append piece till #
1.206 paf 1020: pc.string.append_strdup_know_length(begin, end-begin);
1.112 paf 1021: }
1022: // fall into COMMENT lexical state [wait for \n]
1.206 paf 1023: push_LS(pc, LS_USER_COMMENT);
1.175 paf 1024: continue;
1.112 paf 1025: }
1.206 paf 1026: switch(pc.ls) {
1.10 paf 1027:
1028: // USER'S = NOT OURS
1.1 paf 1029: case LS_USER:
1.206 paf 1030: case LS_NAME_SQUARE_PART: // name.[here].xxx
1031: if(pc.trim_bof)
1.153 parser 1032: switch(c) {
1033: case '\n': case ' ': case '\t':
1.206 paf 1034: begin=pc.source;
1035: begin_pos=pc.pos;
1.152 parser 1036: continue; // skip it
1.153 parser 1037: default:
1.206 paf 1038: pc.trim_bof=false;
1.152 parser 1039: }
1.48 paf 1040: switch(c) {
1041: case '$':
1.206 paf 1042: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1043: RC;
1044: case '^':
1.206 paf 1045: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1046: RC;
1.166 parser 1047: case ']':
1.206 paf 1048: if(pc.ls==LS_NAME_SQUARE_PART)
1.166 parser 1049: if(--lexical_brackets_nestage==0) {// $name.[co<]?>de<]?>
1.206 paf 1050: pop_LS(pc); // $name.[co<]>de<]!>
1.166 parser 1051: RC;
1052: }
1.160 parser 1053: break;
1.166 parser 1054: case '[': // $name.[co<[>de]
1.206 paf 1055: if(pc.ls==LS_NAME_SQUARE_PART)
1.166 parser 1056: lexical_brackets_nestage++;
1.161 parser 1057: break;
1.112 paf 1058: }
1.209 paf 1059: if(pc.explicit_result && c)
1060: switch(c) {
1.276 moko 1061: default:
1062: pc.string.append(c);
1.209 paf 1063: case '\n': case ' ': case '\t':
1064: begin=pc.source;
1065: begin_pos=pc.pos;
1.276 moko 1066: continue;
1.209 paf 1067: }
1.112 paf 1068: break;
1069:
1070: // #COMMENT
1.194 paf 1071: case LS_USER_COMMENT:
1.112 paf 1072: if(c=='\n') {
1073: // skip comment
1.206 paf 1074: begin=pc.source;
1075: begin_pos=pc.pos;
1.112 paf 1076:
1.206 paf 1077: pop_LS(pc);
1.112 paf 1078: continue;
1.1 paf 1079: }
1.48 paf 1080: break;
1081:
1082: // STRING IN EXPRESSION
1.145 parser 1083: case LS_EXPRESSION_STRING_QUOTED:
1084: case LS_EXPRESSION_STRING_APOSTROFED:
1.48 paf 1085: switch(c) {
1086: case '"':
1.145 parser 1087: case '\'':
1088: if(
1.270 moko 1089: (pc.ls == LS_EXPRESSION_STRING_QUOTED && c=='"') ||
1090: (pc.ls == LS_EXPRESSION_STRING_APOSTROFED && c=='\'') ) {
1.206 paf 1091: pop_LS(pc); //"abc". | 'abc'.
1.145 parser 1092: RC;
1093: }
1094: break;
1.48 paf 1095: case '$':
1.206 paf 1096: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1097: RC;
1098: case '^':
1.206 paf 1099: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1100: RC;
1.10 paf 1101: }
1102: break;
1103:
1104: // METHOD DEFINITION
1105: case LS_DEF_NAME:
1.48 paf 1106: switch(c) {
1107: case '[':
1.206 paf 1108: pc.ls=LS_DEF_PARAMS;
1.48 paf 1109: RC;
1110: case '\n':
1.206 paf 1111: pc.ls=LS_DEF_SPECIAL_BODY;
1.48 paf 1112: RC;
1.10 paf 1113: }
1114: break;
1.48 paf 1115:
1.10 paf 1116: case LS_DEF_PARAMS:
1.48 paf 1117: switch(c) {
1.192 paf 1118: case '$': // common error
1.193 paf 1119: result=BAD_METHOD_PARAMETER_NAME_CHARACTER;
1120: goto break2;
1.48 paf 1121: case ';':
1122: RC;
1123: case ']':
1.206 paf 1124: pc.ls=*pc.source=='['?LS_DEF_LOCALS:LS_DEF_COMMENT;
1.48 paf 1125: RC;
1.49 paf 1126: case '\n': // wrong. bailing out
1.206 paf 1127: pop_LS(pc);
1.48 paf 1128: RC;
1.10 paf 1129: }
1130: break;
1.48 paf 1131:
1.10 paf 1132: case LS_DEF_LOCALS:
1.48 paf 1133: switch(c) {
1134: case '[':
1135: case ';':
1136: RC;
1137: case ']':
1.206 paf 1138: pc.ls=LS_DEF_COMMENT;
1.48 paf 1139: RC;
1140: case '\n': // wrong. bailing out
1.206 paf 1141: pop_LS(pc);
1.48 paf 1142: RC;
1.10 paf 1143: }
1144: break;
1.48 paf 1145:
1.10 paf 1146: case LS_DEF_COMMENT:
1147: if(c=='\n') {
1.206 paf 1148: pop_LS(pc);
1.48 paf 1149: RC;
1.37 paf 1150: }
1151: break;
1152:
1.48 paf 1153: case LS_DEF_SPECIAL_BODY:
1.175 paf 1154: if(c=='\n')
1.48 paf 1155: RC;
1156: break;
1157:
1158: // (EXPRESSION)
1.69 paf 1159: case LS_VAR_ROUND:
1160: case LS_METHOD_ROUND:
1.48 paf 1161: switch(c) {
1162: case ')':
1.270 moko 1163: if(--lexical_brackets_nestage==0) {
1.206 paf 1164: if(pc.ls==LS_METHOD_ROUND) // method round param ended
1165: pc.ls=LS_METHOD_AFTER; // look for method end
1166: else // pc.ls==LS_VAR_ROUND // variable constructor ended
1167: pop_LS(pc); // return to normal life
1.270 moko 1168: }
1.48 paf 1169: RC;
1.194 paf 1170: case '#': // comment start skipping
1171: if(end!=begin) {
1.206 paf 1172: if(!pc.string_start)
1173: pc.string_start=begin_pos;
1.194 paf 1174: // append piece till #
1.206 paf 1175: pc.string.append_strdup_know_length(begin, end-begin);
1.194 paf 1176: }
1177: // fall into COMMENT lexical state [wait for \n]
1.206 paf 1178: push_LS(pc, LS_EXPRESSION_COMMENT);
1.194 paf 1179: lexical_brackets_nestage=1;
1180: continue;
1.48 paf 1181: case '$':
1.206 paf 1182: push_LS(pc, LS_EXPRESSION_VAR_NAME_WITH_COLON);
1.48 paf 1183: RC;
1184: case '^':
1.206 paf 1185: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1186: RC;
1187: case '(':
1188: lexical_brackets_nestage++;
1189: RC;
1.67 paf 1190: case '-':
1.206 paf 1191: switch(*pc.source) {
1.127 paf 1192: case 'f': // -f
1.67 paf 1193: skip_analized=1;
1194: result=FEXISTS;
1.127 paf 1195: goto break2;
1196: case 'd': // -d
1197: skip_analized=1;
1198: result=DEXISTS;
1199: goto break2;
1.191 paf 1200: default: // minus
1.67 paf 1201: result=c;
1.127 paf 1202: goto break2;
1203: }
1.67 paf 1204: goto break2;
1.173 paf 1205: case '+': case '*': case '/': case '%': case '\\':
1.58 paf 1206: case '~':
1.48 paf 1207: case ';':
1208: RC;
1.193 paf 1209: case '&': case '|':
1.206 paf 1210: if(*pc.source==c) { // && ||
1.193 paf 1211: result=c=='&'?LAND:LOR;
1.67 paf 1212: skip_analized=1;
1.58 paf 1213: } else
1214: result=c;
1215: goto break2;
1.193 paf 1216: case '!':
1.206 paf 1217: switch(pc.source[0]) {
1.193 paf 1218: case '|': // !| !||
1219: skip_analized=1;
1.206 paf 1220: if(pc.source[1]=='|') {
1.193 paf 1221: skip_analized++;
1222: result=LXOR;
1223: } else
1224: result=NXOR;
1225: goto break2;
1226: case '=': // !=
1227: skip_analized=1;
1228: result=NNE;
1229: goto break2;
1230: }
1231: RC;
1.195 paf 1232:
1233: case '<': // <<, <=, <
1.206 paf 1234: switch(*pc.source) {
1.195 paf 1235: case '<': // <[<]
1236: skip_analized=1; result=NSL; break;
1237: case '=': // <[=]
1238: skip_analized=1; result=NLE; break;
1239: default: // <[]
1240: result=c; break;
1241: }
1242: goto break2;
1243: case '>': // >>, >=, >
1.206 paf 1244: switch(*pc.source) {
1.195 paf 1245: case '>': // >[>]
1246: skip_analized=1; result=NSR; break;
1247: case '=': // >[=]
1248: skip_analized=1; result=NGE; break;
1249: default: // >[]
1250: result=c; break;
1251: }
1252: goto break2;
1253: case '=': // ==
1.206 paf 1254: switch(*pc.source) {
1.195 paf 1255: case '=': // =[=]
1256: skip_analized=1; result=NEQ; break;
1257: default: // =[]
1258: result=c; break; // not used now
1259: }
1.58 paf 1260: goto break2;
1.195 paf 1261:
1.48 paf 1262: case '"':
1.206 paf 1263: push_LS(pc, LS_EXPRESSION_STRING_QUOTED);
1.145 parser 1264: RC;
1265: case '\'':
1.206 paf 1266: push_LS(pc, LS_EXPRESSION_STRING_APOSTROFED);
1.48 paf 1267: RC;
1.50 paf 1268: case 'l': case 'g': case 'e': case 'n':
1.51 paf 1269: if(end==begin) // right after whitespace
1.206 paf 1270: if(isspace(pc.source[1])) {
1271: switch(*pc.source) {
1.117 paf 1272: // case '?': // ok [and bad cases, yacc would bark at them]
1273: case 't': // lt gt [et nt]
1274: result=c=='l'?SLT:c=='g'?SGT:BAD_STRING_COMPARISON_OPERATOR;
1275: skip_analized=1;
1276: goto break2;
1277: case 'e': // le ge ne [ee]
1278: result=c=='l'?SLE:c=='g'?SGE:c=='n'?SNE:BAD_STRING_COMPARISON_OPERATOR;
1279: skip_analized=1;
1280: goto break2;
1281: case 'q': // eq [lq gq nq]
1282: result=c=='e'?SEQ:BAD_STRING_COMPARISON_OPERATOR;
1283: skip_analized=1;
1284: goto break2;
1285: }
1.67 paf 1286: }
1287: break;
1288: case 'i':
1289: if(end==begin) // right after whitespace
1.206 paf 1290: if(isspace(pc.source[1])) {
1291: switch(pc.source[0]) {
1.117 paf 1292: case 'n': // in
1.95 paf 1293: skip_analized=1;
1294: result=IN;
1295: goto break2;
1.117 paf 1296: case 's': // is
1.95 paf 1297: skip_analized=1;
1298: result=IS;
1299: goto break2;
1300: }
1.67 paf 1301: }
1302: break;
1303: case 'd':
1304: if(end==begin) // right after whitespace
1.206 paf 1305: if(pc.source[0]=='e' && pc.source[1]=='f') { // def
1.225 misha 1306: switch(pc.source[2]){
1307: case ' ': case '\t': case '\n': case '"': case '\'': case '^': case '$': // non-quoted string without whitespace after 'def' is not allowed
1308: skip_analized=2;
1309: result=DEF;
1310: goto break2;
1311: }
1312: // error: incorrect char after 'def'
1.50 paf 1313: }
1.48 paf 1314: break;
1.216 paf 1315: case 't':
1316: if(end==begin) // right after whitespace
1.225 misha 1317: if(pc.source[0]=='r' && pc.source[1]=='u' && pc.source[2]=='e') { // true
1.216 paf 1318: skip_analized=3;
1319: result=LITERAL_TRUE;
1320: goto break2;
1321: }
1322: break;
1323: case 'f':
1324: if(end==begin) // right after whitespace
1.225 misha 1325: if(pc.source[0]=='a' && pc.source[1]=='l' && pc.source[2]=='s' && pc.source[3]=='e') { // false
1.216 paf 1326: skip_analized=4;
1327: result=LITERAL_FALSE;
1328: goto break2;
1329: }
1330: break;
1.48 paf 1331: case ' ': case '\t': case '\n':
1.63 paf 1332: if(end!=begin) { // there were a string after previous operator?
1333: result=0; // return that string
1334: goto break2;
1.48 paf 1335: }
1.63 paf 1336: // that's a leading|traling space or after-operator-space
1337: // ignoring it
1338: // reset piece 'begin' position & line
1.206 paf 1339: begin=pc.source; // after whitespace char
1340: begin_pos=pc.pos;
1.48 paf 1341: continue;
1.1 paf 1342: }
1343: break;
1.194 paf 1344: case LS_EXPRESSION_COMMENT:
1345: if(c=='(')
1346: lexical_brackets_nestage++;
1347:
1.206 paf 1348: switch(*pc.source) {
1.194 paf 1349: case '\n': case ')':
1.206 paf 1350: if(*pc.source==')')
1.194 paf 1351: if(--lexical_brackets_nestage!=0)
1352: continue;
1353:
1354: // skip comment
1.206 paf 1355: begin=pc.source;
1356: begin_pos=pc.pos;
1.194 paf 1357:
1.206 paf 1358: pop_LS(pc);
1.194 paf 1359: continue;
1360: }
1361: break;
1.1 paf 1362:
1.10 paf 1363: // VARIABLE GET/PUT/WITH
1.166 parser 1364: case LS_VAR_NAME_SIMPLE_WITH_COLON:
1365: case LS_VAR_NAME_SIMPLE_WITHOUT_COLON:
1366: case LS_EXPRESSION_VAR_NAME_WITH_COLON:
1367: case LS_EXPRESSION_VAR_NAME_WITHOUT_COLON:
1368: if(
1.206 paf 1369: pc.ls==LS_EXPRESSION_VAR_NAME_WITH_COLON ||
1370: pc.ls==LS_EXPRESSION_VAR_NAME_WITHOUT_COLON) {
1.181 paf 1371: // name in expr ends also before
1.48 paf 1372: switch(c) {
1.181 paf 1373: // expression minus
1.92 paf 1374: case '-':
1.181 paf 1375: // expression integer division
1376: case '\\':
1.206 paf 1377: pop_LS(pc);
1378: pc.ungetc();
1.48 paf 1379: result=EON;
1380: goto break2;
1381: }
1382: }
1.166 parser 1383: if(
1.206 paf 1384: pc.ls==LS_VAR_NAME_SIMPLE_WITHOUT_COLON ||
1385: pc.ls==LS_EXPRESSION_VAR_NAME_WITHOUT_COLON) {
1.142 parser 1386: // name already has ':', stop before next
1387: switch(c) {
1388: case ':':
1.206 paf 1389: pop_LS(pc);
1390: pc.ungetc();
1.142 parser 1391: result=EON;
1392: goto break2;
1393: }
1394: }
1.48 paf 1395: switch(c) {
1396: case 0:
1397: case ' ': case '\t': case '\n':
1398: case ';':
1.126 paf 1399: case ']': case '}': case ')':
1400: case '"': case '\'':
1.139 parser 1401: case '<': case '>': // these stand for HTML brackets AND expression binary ops
1.253 misha 1402: case '+': case '*': case '/': case '\\': case '%':
1.92 paf 1403: case '&': case '|':
1404: case '=': case '!':
1.99 paf 1405: // common delimiters
1.190 paf 1406: case ',': case '?': case '#':
1.220 paf 1407: // mysql column separators
1408: case '`':
1.139 parser 1409: // before call
1410: case '^':
1.206 paf 1411: pop_LS(pc);
1412: pc.ungetc();
1.13 paf 1413: result=EON;
1.1 paf 1414: goto break2;
1.48 paf 1415: case '[':
1.162 parser 1416: // $name.<[>code]
1.206 paf 1417: if(pc.pos.col>1/*not first column*/ && (
1.163 parser 1418: end[-1]=='$'/*was start of get*/ ||
1419: end[-1]==':'/*was class name delim */ ||
1420: end[-1]=='.'/*was name delim */
1.162 parser 1421: )) {
1.206 paf 1422: push_LS(pc, LS_NAME_SQUARE_PART);
1.162 parser 1423: lexical_brackets_nestage=1;
1424: RC;
1425: }
1.206 paf 1426: pc.ls=LS_VAR_SQUARE;
1.1 paf 1427: lexical_brackets_nestage=1;
1.48 paf 1428: RC;
1429: case '{':
1430: if(begin==end) { // ${name}, no need of EON, switching LS
1.206 paf 1431: pc.ls=LS_VAR_NAME_CURLY;
1.48 paf 1432: } else {
1.206 paf 1433: pc.ls=LS_VAR_CURLY;
1.48 paf 1434: lexical_brackets_nestage=1;
1435: }
1.69 paf 1436:
1.48 paf 1437: RC;
1438: case '(':
1.206 paf 1439: pc.ls=LS_VAR_ROUND;
1.1 paf 1440: lexical_brackets_nestage=1;
1.48 paf 1441: RC;
1442: case '.': // name part delim
1443: case '$': // name part subvar
1.160 parser 1444: case ':': // class<:>name
1.166 parser 1445: // go to _WITHOUT_COLON state variant...
1.206 paf 1446: if(pc.ls==LS_VAR_NAME_SIMPLE_WITH_COLON)
1447: pc.ls=LS_VAR_NAME_SIMPLE_WITHOUT_COLON;
1448: else if(pc.ls==LS_EXPRESSION_VAR_NAME_WITH_COLON)
1449: pc.ls=LS_EXPRESSION_VAR_NAME_WITHOUT_COLON;
1.166 parser 1450: // ...stop before next ':'
1.48 paf 1451: RC;
1.1 paf 1452: }
1453: break;
1.48 paf 1454:
1.1 paf 1455: case LS_VAR_NAME_CURLY:
1.48 paf 1456: switch(c) {
1.162 parser 1457: case '[':
1.166 parser 1458: // ${name.<[>code]}
1.206 paf 1459: push_LS(pc, LS_NAME_SQUARE_PART);
1.160 parser 1460: lexical_brackets_nestage=1;
1461: RC;
1.48 paf 1462: case '}': // ${name} finished, restoring LS
1.206 paf 1463: pop_LS(pc);
1.48 paf 1464: RC;
1465: case '.': // name part delim
1466: case '$': // name part subvar
1467: case ':': // ':name' or 'class:name'
1468: RC;
1.1 paf 1469: }
1470: break;
1.48 paf 1471:
1472: case LS_VAR_SQUARE:
1473: switch(c) {
1474: case '$':
1.206 paf 1475: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1476: RC;
1477: case '^':
1.206 paf 1478: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1479: RC;
1480: case ']':
1.1 paf 1481: if(--lexical_brackets_nestage==0) {
1.206 paf 1482: pop_LS(pc);
1.48 paf 1483: RC;
1.1 paf 1484: }
1.48 paf 1485: break;
1486: case ';': // operator_or_fmt;value delim
1487: RC;
1488: case '[':
1489: lexical_brackets_nestage++;
1490: break;
1.1 paf 1491: }
1492: break;
1.48 paf 1493:
1.1 paf 1494: case LS_VAR_CURLY:
1.48 paf 1495: switch(c) {
1496: case '$':
1.206 paf 1497: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1498: RC;
1499: case '^':
1.206 paf 1500: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1501: RC;
1502: case '}':
1.1 paf 1503: if(--lexical_brackets_nestage==0) {
1.206 paf 1504: pop_LS(pc);
1.48 paf 1505: RC;
1.1 paf 1506: }
1.48 paf 1507: break;
1508: case '{':
1.1 paf 1509: lexical_brackets_nestage++;
1.48 paf 1510: break;
1511: }
1.1 paf 1512: break;
1513:
1.10 paf 1514: // METHOD CALL
1.1 paf 1515: case LS_METHOD_NAME:
1.48 paf 1516: switch(c) {
1517: case '[':
1.166 parser 1518: // ^name.<[>code].xxx
1.206 paf 1519: if(pc.pos.col>1/*not first column*/ && (
1.163 parser 1520: end[-1]=='^'/*was start of call*/ || // never, ^[ is literal...
1521: end[-1]==':'/*was class name delim */ ||
1522: end[-1]=='.'/*was name delim */
1.162 parser 1523: )) {
1.206 paf 1524: push_LS(pc, LS_NAME_SQUARE_PART);
1.162 parser 1525: lexical_brackets_nestage=1;
1526: RC;
1527: }
1.206 paf 1528: pc.ls=LS_METHOD_SQUARE;
1.1 paf 1529: lexical_brackets_nestage=1;
1.48 paf 1530: RC;
1531: case '{':
1.206 paf 1532: pc.ls=LS_METHOD_CURLY;
1.1 paf 1533: lexical_brackets_nestage=1;
1.48 paf 1534: RC;
1.69 paf 1535: case '(':
1.206 paf 1536: pc.ls=LS_METHOD_ROUND;
1.69 paf 1537: lexical_brackets_nestage=1;
1538: RC;
1.48 paf 1539: case '.': // name part delim
1540: case '$': // name part subvar
1541: case ':': // ':name' or 'class:name'
1.170 parser 1542: case '^': // ^abc^xxx wrong. bailing out
1543: case ']': case '}': case ')': // ^abc]}) wrong. bailing out
1.207 paf 1544: case ' ': // ^if ( wrong. bailing out
1.48 paf 1545: RC;
1.1 paf 1546: }
1547: break;
1.48 paf 1548:
1549: case LS_METHOD_SQUARE:
1550: switch(c) {
1551: case '$':
1.206 paf 1552: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1553: RC;
1554: case '^':
1.206 paf 1555: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1556: RC;
1557: case ';': // param delim
1558: RC;
1559: case ']':
1.1 paf 1560: if(--lexical_brackets_nestage==0) {
1.206 paf 1561: pc.ls=LS_METHOD_AFTER;
1.48 paf 1562: RC;
1.1 paf 1563: }
1.48 paf 1564: break;
1565: case '[':
1.1 paf 1566: lexical_brackets_nestage++;
1.48 paf 1567: break;
1568: }
1.1 paf 1569: break;
1.48 paf 1570:
1.1 paf 1571: case LS_METHOD_CURLY:
1.48 paf 1572: switch(c) {
1573: case '$':
1.206 paf 1574: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1575: RC;
1576: case '^':
1.206 paf 1577: push_LS(pc, LS_METHOD_NAME);
1.94 paf 1578: RC;
1579: case ';': // param delim
1.48 paf 1580: RC;
1581: case '}':
1.1 paf 1582: if(--lexical_brackets_nestage==0) {
1.206 paf 1583: pc.ls=LS_METHOD_AFTER;
1.48 paf 1584: RC;
1.1 paf 1585: }
1.48 paf 1586: break;
1587: case '{':
1.1 paf 1588: lexical_brackets_nestage++;
1.48 paf 1589: break;
1590: }
1.209 paf 1591: if(pc.explicit_result && c)
1592: switch(c) {
1.276 moko 1593: default:
1594: pc.string.append(c);
1.209 paf 1595: case '\n': case ' ': case '\t':
1596: begin=pc.source;
1597: begin_pos=pc.pos;
1.276 moko 1598: continue;
1.209 paf 1599: }
1.1 paf 1600: break;
1.48 paf 1601:
1.1 paf 1602: case LS_METHOD_AFTER:
1.69 paf 1603: if(c=='[') {/* ][ }[ )[ */
1.206 paf 1604: pc.ls=LS_METHOD_SQUARE;
1.1 paf 1605: lexical_brackets_nestage=1;
1.48 paf 1606: RC;
1.1 paf 1607: }
1.69 paf 1608: if(c=='{') {/* ]{ }{ ){ */
1.206 paf 1609: pc.ls=LS_METHOD_CURLY;
1.69 paf 1610: lexical_brackets_nestage=1;
1611: RC;
1612: }
1613: if(c=='(') {/* ]( }( )( */
1.206 paf 1614: pc.ls=LS_METHOD_ROUND;
1.1 paf 1615: lexical_brackets_nestage=1;
1.48 paf 1616: RC;
1.1 paf 1617: }
1.206 paf 1618: pop_LS(pc);
1619: pc.ungetc();
1.13 paf 1620: result=EON;
1.1 paf 1621: goto break2;
1622: }
1.9 paf 1623: if(c==0) {
1.1 paf 1624: result=-1;
1625: break;
1626: }
1627: }
1628:
1629: break2:
1.59 paf 1630: if(end!=begin) { // there is last piece?
1.258 misha 1631: if(c=='@' || c==0) // we are before LS_DEF_NAME or EOF?
1632: while(end!=begin && end[-1]=='\n') // trim all empty lines before LS_DEF_NAME and EOF
1.137 parser 1633: end--;
1.206 paf 1634: if(end!=begin && pc.ls!=LS_USER_COMMENT) { // last piece still alive and not comment?
1635: if(!pc.string_start)
1636: pc.string_start=begin_pos;
1.59 paf 1637: // append it
1.206 paf 1638: pc.string.append_strdup_know_length(begin, end-begin);
1.30 paf 1639: }
1.59 paf 1640: }
1.206 paf 1641: if(!pc.string.is_empty()) { // something accumulated?
1642: // create STRING value: array of OP_VALUE+origin+vstring
1.278 moko 1643: #ifdef SYMBOLS_CACHING
1644: Value *lookup=symbols->get(pc.string);
1645: #else
1646: Value *lookup=0;
1647: #endif
1.206 paf 1648: *lvalp=VL(
1.279 moko 1649: 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 1650: // new pieces storage
1.206 paf 1651: pc.string.clear();
1652: pc.string_start.clear();
1.58 paf 1653: // make current result be pending for next call, return STRING for now
1.206 paf 1654: pc.pending_state=result; result=STRING;
1.58 paf 1655: }
1.67 paf 1656: if(skip_analized) {
1.206 paf 1657: pc.source+=skip_analized; pc.pos.col+=skip_analized;
1.1 paf 1658: }
1.58 paf 1659: return result;
1.1 paf 1660: }
1661:
1.264 moko 1662: static int real_yyerror(Parse_control *pc, const char *s) { // Called by yyparse on error
1.114 paf 1663: strncpy(PC.error, s, MAX_STRING);
1.1 paf 1664: return 1;
1.110 paf 1665: }
1.1 paf 1666:
1.110 paf 1667: static void yyprint(FILE *file, int type, YYSTYPE value) {
1668: if(type==STRING)
1.206 paf 1669: fprintf(file, " \"%s\"", LA2S(*value)->cstr());
1.110 paf 1670: }
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