Annotation of parser3/src/main/compile.y, revision 1.274
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:
1.274 ! moko 11: volatile const char * IDENT_COMPILE_Y = "$Id: compile.y,v 1.273 2015/10/21 21:45:25 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:
1.97 paf 44: #define USE_CONTROL_METHOD_NAME "USE"
1.226 misha 45: #define OPTIONS_CONTROL_METHOD_NAME "OPTIONS"
46: #define OPTION_ALL_VARS_LOCAL_NAME "locals"
1.230 misha 47: #define OPTION_PARTIAL_CLASS "partial"
1.238 misha 48: #define REM_OPERATOR_NAME "rem"
1.1 paf 49:
1.206 paf 50: // forwards
51:
1.264 moko 52: static int real_yyerror(Parse_control* pc, const char* s);
1.206 paf 53: static void yyprint(FILE* file, int type, YYSTYPE value);
54: static int yylex(YYSTYPE* lvalp, void* pc);
1.1 paf 55:
1.216 paf 56: static const VBool vfalse(false);
57: static const VBool vtrue(true);
1.261 moko 58: static const VString vempty;
1.216 paf 59:
1.8 paf 60: // local convinient inplace typecast & var
1.205 paf 61: #undef PC
1.271 moko 62: #define PC (*pc)
1.206 paf 63: #undef POOL
1.114 paf 64: #define POOL (*PC.pool)
1.107 paf 65: #ifndef DOXYGEN
1.265 moko 66:
67: #define CLASS_ADD if(PC.class_add()){ \
68: strncpy(PC.error, PC.cclass->name().cstr(), MAX_STRING/2); \
69: strcat(PC.error, " - class is already defined"); \
70: YYERROR; \
71: }
72:
1.1 paf 73: %}
74:
1.271 moko 75: %pure-parser
76: %lex-param {Parse_control* pc}
77: %parse-param {Parse_control* pc}
1.1 paf 78:
1.13 paf 79: %token EON
1.4 paf 80: %token STRING
1.1 paf 81: %token BOGUS
1.55 paf 82:
1.58 paf 83: %token BAD_STRING_COMPARISON_OPERATOR
1.114 paf 84: %token BAD_HEX_LITERAL
1.171 parser 85: %token BAD_METHOD_DECL_START
1.193 paf 86: %token BAD_METHOD_PARAMETER_NAME_CHARACTER
1.209 paf 87: %token BAD_NONWHITESPACE_CHARACTER_IN_EXPLICIT_RESULT_MODE
1.58 paf 88:
1.59 paf 89: %token LAND "&&"
1.58 paf 90: %token LOR "||"
1.193 paf 91: %token LXOR "!||"
92: %token NXOR "!|"
1.58 paf 93:
94: %token NLE "<="
95: %token NGE ">="
96: %token NEQ "=="
97: %token NNE "!="
1.195 paf 98: %token NSL "<<"
99: %token NSR ">>"
1.58 paf 100:
101: %token SLT "lt"
102: %token SGT "gt"
103: %token SLE "le"
104: %token SGE "ge"
105: %token SEQ "eq"
106: %token SNE "ne"
107:
1.67 paf 108: %token DEF "def"
109: %token IN "in"
110: %token FEXISTS "-f"
1.127 paf 111: %token DEXISTS "-d"
1.95 paf 112: %token IS "is"
1.67 paf 113:
1.216 paf 114: %token LITERAL_TRUE "true"
115: %token LITERAL_FALSE "false"
116:
1.57 paf 117: /* logical */
1.193 paf 118: %left "!||"
1.57 paf 119: %left "||"
120: %left "&&"
1.131 paf 121: %left '<' '>' "<=" ">=" "lt" "gt" "le" "ge"
122: %left "==" "!=" "eq" "ne"
123: %left "is" "def" "in" "-f" "-d"
1.57 paf 124:
125: /* bitwise */
1.193 paf 126: %left "!|"
1.131 paf 127: %left '|'
128: %left '&'
1.202 paf 129: %left "<<" ">>"
1.57 paf 130:
1.56 paf 131: /* numerical */
1.202 paf 132: %left '+' '-'
133: %left '*' '/' '\\' '%'
134: %left NUNARY /* unary - + */
135:
136: /* out-of-group */
137: %left '~' /* bitwise */
138: %left '!' /* logical */
1.1 paf 139:
140: %%
1.195 paf 141: all:
1.10 paf 142: one_big_piece {
1.251 misha 143: Method* method=new Method(Method::CT_ANY,
1.81 paf 144: 0, 0, /*min, max numbered_params_count*/
1.75 paf 145: 0/*param_names*/, 0/*local_names*/,
146: $1/*parser_code*/, 0/*native_code*/);
1.251 misha 147: PC.cclass->set_method(PC.alias_method(main_method_name), method);
1.10 paf 148: }
149: | methods;
150:
151: methods: method | methods method;
152: one_big_piece: maybe_codes;
153:
1.34 paf 154: method: control_method | code_method;
155:
156: control_method: '@' STRING '\n'
1.132 paf 157: maybe_control_strings {
1.260 misha 158: const String& command=LA2S(*$2)->trim(String::TRIM_END);
1.34 paf 159: YYSTYPE strings_code=$4;
1.206 paf 160: if(strings_code->count()<1*OPERATIONS_PER_OPVALUE) {
1.114 paf 161: strcpy(PC.error, "@");
162: strcat(PC.error, command.cstr());
163: strcat(PC.error, " is empty");
1.37 paf 164: YYERROR;
165: }
1.74 paf 166: if(command==CLASS_NAME) {
1.206 paf 167: if(strings_code->count()==1*OPERATIONS_PER_OPVALUE) {
1.265 moko 168: CLASS_ADD;
1.73 paf 169: // new class' name
1.260 misha 170: const String& name=LA2S(*strings_code)->trim(String::TRIM_END);
1.73 paf 171: // creating the class
1.206 paf 172: VStateless_class* cclass=new VClass;
1.226 misha 173: PC.cclass_new=cclass;
174: PC.cclass_new->set_name(name);
1.266 misha 175: PC.append=false;
1.73 paf 176: } else {
1.268 moko 177: strcpy(PC.error, "@" CLASS_NAME " must contain only one line with class name (contains more then one)");
1.34 paf 178: YYERROR;
179: }
1.130 paf 180: } else if(command==USE_CONTROL_METHOD_NAME) {
1.265 moko 181: CLASS_ADD;
1.273 moko 182: for(size_t i=0; i<strings_code->count(); i+=OPERATIONS_PER_OPVALUE){
183: PC.request.use_file(PC.request.main_class, LA2S(*strings_code, i)->trim(String::TRIM_END),
184: PC.request.get_used_filename(PC.file_no), strings_code->get(i+1).origin);
185: }
1.130 paf 186: } else if(command==BASE_NAME) {
1.226 misha 187: if(PC.append){
188: strcpy(PC.error, "can't set base while appending methods to class '");
189: strncat(PC.error, PC.cclass->name().cstr(), MAX_STRING/2);
190: strcat(PC.error, "'");
191: YYERROR;
192: }
1.265 moko 193: CLASS_ADD;
1.188 paf 194: if(PC.cclass->base_class()) { // already changed from default?
1.130 paf 195: strcpy(PC.error, "class already have a base '");
1.226 misha 196: strncat(PC.error, PC.cclass->base_class()->name().cstr(), MAX_STRING/2);
1.130 paf 197: strcat(PC.error, "'");
198: YYERROR;
199: }
1.206 paf 200: if(strings_code->count()==1*OPERATIONS_PER_OPVALUE) {
1.260 misha 201: const String& base_name=LA2S(*strings_code)->trim(String::TRIM_END);
1.252 misha 202: if(Value* base_class_value=PC.request.get_class(base_name)) {
1.206 paf 203: // @CLASS == @BASE sanity check
204: if(VStateless_class *base_class=base_class_value->get_class()) {
205: if(PC.cclass==base_class) {
1.268 moko 206: strcpy(PC.error, "@" CLASS_NAME " equals @" BASE_NAME);
1.206 paf 207: YYERROR;
208: }
209: PC.cclass->get_class()->set_base(base_class);
210: } else { // they asked to derive from a class without methods ['env' & co]
211: strcpy(PC.error, base_name.cstr());
1.268 moko 212: strcat(PC.error, ": you can not derive from this class in @" BASE_NAME);
1.206 paf 213: YYERROR;
214: }
215: } else {
1.130 paf 216: strcpy(PC.error, base_name.cstr());
1.268 moko 217: strcat(PC.error, ": undefined class in @" BASE_NAME);
1.73 paf 218: YYERROR;
219: }
1.34 paf 220: } else {
1.268 moko 221: strcpy(PC.error, "@" BASE_NAME " must contain sole name");
1.34 paf 222: YYERROR;
223: }
1.223 misha 224: } else if(command==OPTIONS_CONTROL_METHOD_NAME) {
225: for(size_t i=0; i<strings_code->count(); i+=OPERATIONS_PER_OPVALUE) {
1.260 misha 226: const String& option=LA2S(*strings_code, i)->trim(String::TRIM_END);
1.226 misha 227: if(option==OPTION_ALL_VARS_LOCAL_NAME){
228: PC.set_all_vars_local();
1.230 misha 229: } else if(option==OPTION_PARTIAL_CLASS){
230: if(PC.cclass_new){
231: if(VStateless_class* existed=PC.get_existed_class(PC.cclass_new)){
232: if(!PC.reuse_existed_class(existed)){
233: strcpy(PC.error, "can't append methods to '");
234: strncat(PC.error, PC.cclass_new->name().cstr(), MAX_STRING/2);
235: strcat(PC.error, "' - the class wasn't marked as partial");
236: YYERROR;
237: }
1.226 misha 238: } else {
1.256 misha 239: // marks the new class as partial. we will be able to add methods here later.
1.230 misha 240: PC.cclass_new->set_partial();
1.226 misha 241: }
1.230 misha 242: } else {
1.268 moko 243: strcpy(PC.error, "'" OPTION_PARTIAL_CLASS "' option should be used straight after @" CLASS_NAME);
1.226 misha 244: YYERROR;
245: }
1.256 misha 246: } else if(option==method_call_type_static){
247: PC.set_methods_call_type(Method::CT_STATIC);
248: } else if(option==method_call_type_dynamic){
249: PC.set_methods_call_type(Method::CT_DYNAMIC);
1.223 misha 250: } else {
1.226 misha 251: strcpy(PC.error, "'");
252: strncat(PC.error, option.cstr(), MAX_STRING/2);
253: strcat(PC.error, "' invalid option. valid options are "
1.268 moko 254: "'" OPTION_PARTIAL_CLASS "', '" OPTION_ALL_VARS_LOCAL_NAME "'"
255: ", '" METHOD_CALL_TYPE_STATIC "' and '" METHOD_CALL_TYPE_DYNAMIC "'"
1.256 misha 256: );
1.223 misha 257: YYERROR;
258: }
259: }
1.130 paf 260: } else {
261: strcpy(PC.error, "'");
262: strncat(PC.error, command.cstr(), MAX_STRING/2);
263: strcat(PC.error, "' invalid special name. valid names are "
1.268 moko 264: "'" CLASS_NAME "', '" USE_CONTROL_METHOD_NAME "', '" BASE_NAME "' and '" OPTIONS_CONTROL_METHOD_NAME "'.");
1.130 paf 265: YYERROR;
1.34 paf 266: }
267: };
1.132 paf 268: maybe_control_strings: empty | control_strings;
1.259 misha 269: control_strings: control_string | control_strings control_string { $$=$1; P(*$$, *$2); };
1.37 paf 270: control_string: maybe_string '\n';
271: maybe_string: empty | STRING;
1.34 paf 272:
1.222 misha 273: code_method: '@' STRING bracketed_maybe_strings maybe_bracketed_strings maybe_comment '\n' {
1.265 moko 274: CLASS_ADD;
1.208 paf 275: PC.explicit_result=false;
1.10 paf 276:
277: YYSTYPE params_names_code=$3;
1.206 paf 278: ArrayString* params_names=0;
279: if(int size=params_names_code->count()) {
280: params_names=new ArrayString;
281: for(int i=0; i<size; i+=OPERATIONS_PER_OPVALUE)
282: *params_names+=LA2S(*params_names_code, i);
1.75 paf 283: }
1.10 paf 284:
285: YYSTYPE locals_names_code=$4;
1.206 paf 286: ArrayString* locals_names=0;
1.223 misha 287: bool all_vars_local=false;
1.206 paf 288: if(int size=locals_names_code->count()) {
289: locals_names=new ArrayString;
1.208 paf 290: for(int i=0; i<size; i+=OPERATIONS_PER_OPVALUE) {
291: const String* local_name=LA2S(*locals_names_code, i);
292: if(*local_name==RESULT_VAR_NAME)
293: PC.explicit_result=true;
1.226 misha 294: else if(*local_name==OPTION_ALL_VARS_LOCAL_NAME)
1.223 misha 295: all_vars_local=true;
1.208 paf 296: else
297: *locals_names+=local_name;
298: }
1.75 paf 299: }
1.231 misha 300: if(!all_vars_local && PC.cclass && PC.cclass->is_vars_local())
1.223 misha 301: all_vars_local=true;
1.10 paf 302:
1.208 paf 303: Method* method=new Method(
1.206 paf 304: //name,
1.257 misha 305: GetMethodCallType(PC, *$2),
1.81 paf 306: 0, 0/*min,max numbered_params_count*/,
1.76 paf 307: params_names, locals_names,
1.223 misha 308: 0/*to be filled later in next {} */, 0, all_vars_local);
1.221 misha 309:
1.208 paf 310: *reinterpret_cast<Method**>(&$$)=method;
1.222 misha 311: } maybe_codes {
1.251 misha 312: Method* method=reinterpret_cast<Method*>($7);
1.231 misha 313: // fill in the code
1.251 misha 314: method->parser_code=$8;
1.231 misha 315:
316: // register in class
317: const String& name=*LA2S(*$2);
1.251 misha 318: PC.cclass->set_method(PC.alias_method(name), method);
1.8 paf 319: };
1.10 paf 320:
321: maybe_bracketed_strings: empty | bracketed_maybe_strings;
1.259 misha 322: bracketed_maybe_strings: '[' maybe_strings ']' {$$=$2;};
1.10 paf 323: maybe_strings: empty | strings;
1.259 misha 324: strings: STRING | strings ';' STRING { $$=$1; P(*$$, *$3); };
1.10 paf 325:
326: maybe_comment: empty | STRING;
1.1 paf 327:
328: /* codes */
329:
1.10 paf 330: maybe_codes: empty | codes;
331:
1.259 misha 332: codes: code | codes code { $$=$1; P(*$$, *$2); };
1.81 paf 333: code: write_string | action;
1.209 paf 334: action: get | put | call;
1.1 paf 335:
336: /* get */
337:
1.64 paf 338: get: get_value {
1.238 misha 339: $$=N();
340: YYSTYPE code=$1;
1.247 misha 341: size_t count=code->count();
1.245 misha 342:
1.235 misha 343: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
1.247 misha 344: if(
345: count!=3
1.267 misha 346: || !change_first(*code, OP::OP_VALUE__GET_ELEMENT, /*=>*/OP::OP_VALUE__GET_ELEMENT__WRITE)
1.247 misha 347: )
1.238 misha 348: #endif
1.247 misha 349:
1.245 misha 350: #ifdef OPTIMIZE_BYTECODE_GET_SELF_ELEMENT
1.247 misha 351: if(
352: count!=3
1.267 misha 353: || !change_first(*code, OP::OP_WITH_SELF__VALUE__GET_ELEMENT, /*=>*/OP::OP_WITH_SELF__VALUE__GET_ELEMENT__WRITE)
1.247 misha 354: )
1.245 misha 355: #endif
356:
1.239 misha 357: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_ELEMENT
1.247 misha 358: if(
359: count!=5
1.267 misha 360: || !change_first(*code, OP::OP_GET_OBJECT_ELEMENT, /*=>*/OP::OP_GET_OBJECT_ELEMENT__WRITE)
1.247 misha 361: )
1.239 misha 362: #endif
363:
364: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_VAR_ELEMENT
1.247 misha 365: if(
366: count!=5
1.267 misha 367: || !change_first(*code, OP::OP_GET_OBJECT_VAR_ELEMENT, /*=>*/OP::OP_GET_OBJECT_VAR_ELEMENT__WRITE)
1.247 misha 368: )
1.238 misha 369: #endif
1.267 misha 370:
371: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT__SPECIAL
372: if(
373: !change(*code, count-1/* last */, OP::OP_GET_ELEMENT__SPECIAL, /*=>*/OP::OP_GET_ELEMENT__SPECIAL__WRITE)
374: )
375: #endif
376:
1.247 misha 377: {
1.267 misha 378: change_or_append(*code, count-1 /* last */,
379: OP::OP_GET_ELEMENT, /*=>*/OP::OP_GET_ELEMENT__WRITE,
1.247 misha 380: /*or */OP::OP_WRITE_VALUE
381: ); /* value=pop; wcontext.write(value) */
1.246 misha 382: }
1.247 misha 383:
1.238 misha 384: P(*$$, *code);
1.1 paf 385: };
1.259 misha 386: get_value: '$' get_name_value { $$=$2; };
1.64 paf 387: get_name_value: name_without_curly_rdive EON | name_in_curly_rdive;
1.259 misha 388: name_in_curly_rdive: '{' name_without_curly_rdive '}' { $$=$2; };
1.44 paf 389: name_without_curly_rdive:
390: name_without_curly_rdive_read
391: | name_without_curly_rdive_class;
1.19 paf 392: name_without_curly_rdive_read: name_without_curly_rdive_code {
1.206 paf 393: $$=N();
1.238 misha 394: YYSTYPE diving_code=$1;
1.239 misha 395: size_t count=diving_code->count();
1.247 misha 396:
397: if(maybe_make_self(*$$, *diving_code, count)) {
398: // $self.
399: } else
1.239 misha 400:
401: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_ELEMENT
1.247 misha 402: if(maybe_make_get_object_element(*$$, *diving_code, count)){
1.245 misha 403: // optimization for $object.field + ^object.method[
1.247 misha 404: } else
1.238 misha 405: #endif
1.239 misha 406:
407: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_VAR_ELEMENT
1.247 misha 408: if(maybe_make_get_object_var_element(*$$, *diving_code, count)){
1.245 misha 409: // optimization for $object.$var
1.247 misha 410: } else
1.238 misha 411: #endif
1.239 misha 412:
413: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
1.248 misha 414: if(
415: count>=4
416: && (*diving_code)[0].code==OP::OP_VALUE
417: && (*diving_code)[3].code==OP::OP_GET_ELEMENT
418: ){
419: // optimization
1.239 misha 420: O(*$$,
1.247 misha 421: (PC.in_call_value && count==4)
1.239 misha 422: ? OP::OP_VALUE__GET_ELEMENT_OR_OPERATOR // ^object[ : OP_VALUE+origin+string+OP_GET_ELEMENT => OP_VALUE__GET_ELEMENT_OR_OPERATOR+origin+string
423: : OP::OP_VALUE__GET_ELEMENT // $object : OP_VALUE+origin+string+OP_GET_ELEMENT => OP_VALUE__GET_ELEMENT+origin+string
424: );
425: P(*$$, *diving_code, 1/*offset*/, 2/*limit*/); // copy origin+value
1.247 misha 426: if(count>4)
427: P(*$$, *diving_code, 4); // copy tail
1.239 misha 428: } else {
429: O(*$$, OP::OP_WITH_READ); /* stack: starting context */
430: P(*$$, *diving_code);
431: }
1.233 misha 432: #else
1.247 misha 433: {
1.238 misha 434: O(*$$, OP::OP_WITH_READ); /* stack: starting context */
1.179 paf 435:
1.238 misha 436: // ^if OP_ELEMENT => ^if OP_ELEMENT_OR_OPERATOR
437: // optimized OP_VALUE+origin+string+OP_GET_ELEMENT. => OP_VALUE+origin+string+OP_GET_ELEMENT_OR_OPERATOR.
1.239 misha 438: if(PC.in_call_value && count==4)
439: diving_code->put(count-1, OP::OP_GET_ELEMENT_OR_OPERATOR);
1.206 paf 440: P(*$$, *diving_code);
1.239 misha 441: }
1.233 misha 442: #endif
1.22 paf 443: /* diving code; stack: current context */
1.1 paf 444: };
1.259 misha 445: name_without_curly_rdive_class: class_prefix name_without_curly_rdive_code { $$=$1; P(*$$, *$2); };
446: name_without_curly_rdive_code: name_advance2 | name_path name_advance2 { $$=$1; P(*$$, *$2); };
1.1 paf 447:
448: /* put */
449:
1.81 paf 450: put: '$' name_expr_wdive construct {
1.241 misha 451: $$=N();
1.244 misha 452: #ifdef OPTIMIZE_BYTECODE_CONSTRUCT
453: if(maybe_optimize_construct(*$$, *$2, *$3)){
1.246 misha 454: // $a(expr), $.a(expr), $a[value], $.a[value], $self.a[value], $self.a(expr)
1.241 misha 455: } else
456: #endif
457: {
458: P(*$$, *$2); /* stack: context,name */
459: P(*$$, *$3); /* stack: context,name,constructor_value */
460: }
1.20 paf 461: };
1.44 paf 462: name_expr_wdive:
1.157 parser 463: name_expr_wdive_root
464: | name_expr_wdive_write
1.44 paf 465: | name_expr_wdive_class;
1.157 parser 466: name_expr_wdive_root: name_expr_dive_code {
1.206 paf 467: $$=N();
1.238 misha 468: YYSTYPE diving_code=$1;
1.247 misha 469: size_t count=diving_code->count();
470:
471: if(maybe_make_self(*$$, *diving_code, count)) {
472: // $self.
473: } else
474: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
475: if(
476: count>=4
477: && (*diving_code)[0].code==OP::OP_VALUE
478: && (*diving_code)[3].code==OP::OP_GET_ELEMENT
479: ){
480: O(*$$, OP::OP_WITH_ROOT__VALUE__GET_ELEMENT);
481: P(*$$, *diving_code, 1/*offset*/, 2/*limit*/); // copy origin+value
482: if(count>4)
483: P(*$$, *diving_code, 4); // tail
484: } else
485: #endif
486: {
1.229 misha 487: O(*$$, OP::OP_WITH_ROOT); /* stack: starting context */
1.206 paf 488: P(*$$, *diving_code);
1.23 paf 489: }
490: /* diving code; stack: current context */
1.156 parser 491: };
1.157 parser 492: name_expr_wdive_write: '.' name_expr_dive_code {
1.206 paf 493: $$=N();
1.229 misha 494: O(*$$, OP::OP_WITH_WRITE); /* stack: starting context */
1.206 paf 495: P(*$$, *$2); /* diving code; stack: context,name */
1.20 paf 496: };
1.259 misha 497: name_expr_wdive_class: class_prefix name_expr_dive_code { $$=$1; P(*$$, *$2); };
1.20 paf 498:
1.244 misha 499: construct:
1.163 parser 500: construct_square
501: | construct_round
502: | construct_curly
1.149 parser 503: ;
1.211 paf 504: construct_square: '[' {
505: // allow $result_or_other_variable[ letters here any time ]
506: *reinterpret_cast<bool*>(&$$)=PC.explicit_result; PC.explicit_result=false;
507: } any_constructor_code_value {
1.213 paf 508: PC.explicit_result=*reinterpret_cast<bool*>(&$2);
1.211 paf 509: } ']' {
1.149 parser 510: // stack: context, name
1.211 paf 511: $$=$3; // stack: context, name, value
1.229 misha 512: O(*$$, OP::OP_CONSTRUCT_VALUE); /* value=pop; name=pop; context=pop; construct(context,name,value) */
1.81 paf 513: }
514: ;
1.149 parser 515: construct_round: '(' expr_value ')' {
1.206 paf 516: $$=N();
1.229 misha 517: O(*$$, OP::OP_PREPARE_TO_EXPRESSION);
1.149 parser 518: // stack: context, name
1.206 paf 519: P(*$$, *$2); // stack: context, name, value
1.229 misha 520: O(*$$, OP::OP_CONSTRUCT_EXPR); /* value=pop->as_expr_result; name=pop; context=pop; construct(context,name,value) */
1.81 paf 521: }
1.52 paf 522: ;
1.149 parser 523: construct_curly: '{' maybe_codes '}' {
524: // stack: context, name
1.206 paf 525: $$=N();
1.229 misha 526: OA(*$$, OP::OP_CURLY_CODE__CONSTRUCT, $2); /* code=pop; name=pop; context=pop; construct(context,name,junction(code)) */
1.149 parser 527: };
528:
1.55 paf 529: any_constructor_code_value:
1.261 moko 530: empty_value /* optimized $var[] case */
1.52 paf 531: | STRING /* optimized $var[STRING] case */
1.55 paf 532: | constructor_code_value /* $var[something complex] */
1.1 paf 533: ;
1.55 paf 534: constructor_code_value: constructor_code {
1.206 paf 535: $$=N();
1.229 misha 536: OA(*$$, OP::OP_OBJECT_POOL, $1); /* stack: empty write context */
1.183 paf 537: /* some code that writes to that context */
538: /* context=pop; stack: context.value() */
1.1 paf 539: };
1.55 paf 540: constructor_code: codes__excluding_sole_str_literal;
1.259 misha 541: codes__excluding_sole_str_literal: action | code codes { $$=$1; P(*$$, *$2); };
1.27 paf 542:
1.1 paf 543: /* call */
544:
1.66 paf 545: call: call_value {
1.267 misha 546: size_t count=$1->count();
1.238 misha 547: #ifdef OPTIMIZE_BYTECODE_CUT_REM_OPERATOR
1.267 misha 548: if(count)
1.238 misha 549: #endif
550: {
551: $$=$1; /* stack: value */
1.267 misha 552: if(!change_first(*$$, OP::OP_CONSTRUCT_OBJECT, /*=>*/OP::OP_CONSTRUCT_OBJECT__WRITE))
553: change_or_append(*$$, count-2 /* second last */,
554: OP::OP_CALL, /*=>*/ OP::OP_CALL__WRITE,
1.249 misha 555: /*or */OP::OP_WRITE_VALUE); /* value=pop; wcontext.write(value) */
1.238 misha 556: }
1.66 paf 557: };
1.177 paf 558: call_value: '^' {
1.180 paf 559: PC.in_call_value=true;
1.177 paf 560: }
561: call_name {
1.180 paf 562: PC.in_call_value=false;
1.177 paf 563: }
1.154 parser 564: store_params EON { /* ^field.$method{vasya} */
1.238 misha 565: #ifdef OPTIMIZE_BYTECODE_CUT_REM_OPERATOR
1.242 misha 566: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
1.238 misha 567: const String* operator_name=LA2S(*$3, 0, OP::OP_VALUE__GET_ELEMENT_OR_OPERATOR);
1.242 misha 568: #else
569: const String* operator_name=LA2S(*$3, 1);
570: #endif
1.249 misha 571: if(operator_name && *operator_name==REM_OPERATOR_NAME){
1.238 misha 572: $$=N();
573: } else
574: #endif
575: {
576: YYSTYPE params_code=$5;
577: if(params_code->count()==3) { // probably [] case. [OP::OP_VALUE+origin+Void]
578: if(Value* value=LA2V(*params_code)) // it is OP_VALUE+origin+value?
1.261 moko 579: if(const String * string=value->get_string())
580: if(string->is_empty()) // value is empty string?
581: params_code=0; // ^zzz[] case. don't append lone empty param.
1.238 misha 582: }
583: /* stack: context, method_junction */
1.249 misha 584:
585: YYSTYPE var_code=$3;
586: if(
587: var_code->count()==8
588: && (*var_code)[0].code==OP::OP_VALUE__GET_CLASS
589: && (*var_code)[3].code==OP::OP_PREPARE_TO_CONSTRUCT_OBJECT
590: && (*var_code)[4].code==OP::OP_VALUE
1.272 moko 591: #ifdef FEATURE_GET_ELEMENT4CALL
592: && (*var_code)[7].code==OP::OP_GET_ELEMENT4CALL
593: #else
1.249 misha 594: && (*var_code)[7].code==OP::OP_GET_ELEMENT
1.272 moko 595: #endif
1.249 misha 596: ){
1.267 misha 597: $$=N();
1.249 misha 598: O(*$$, OP::OP_CONSTRUCT_OBJECT);
599: P(*$$, *var_code, 1/*offset*/, 2/*limit*/); // class name
600: P(*$$, *var_code, 5/*offset*/, 2/*limit*/); // constructor name
601: OA(*$$, params_code);
602: } else
603: {
604: $$=var_code; /* with_xxx,diving code; stack: context,method_junction */
605: OA(*$$, OP::OP_CALL, params_code); // method_frame=make frame(pop junction); ncontext=pop; call(ncontext,method_frame) stack: value
606: }
1.238 misha 607: }
1.1 paf 608: };
609:
1.272 moko 610: call_name: name_without_curly_rdive {
611: #ifdef FEATURE_GET_ELEMENT4CALL
612: size_t count=$1->count();
613: if(count){
614: $$=$1;
615: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_ELEMENT
616: !(count==5 && change_first(*$$, OP::OP_GET_OBJECT_ELEMENT, OP::OP_GET_OBJECT_ELEMENT4CALL)) &&
617: #endif
618: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_VAR_ELEMENT
619: !(count==5 && change_first(*$$, OP::OP_GET_OBJECT_VAR_ELEMENT, OP::OP_GET_OBJECT_VAR_ELEMENT4CALL)) &&
620: #endif
621: !change(*$$, count-1, OP::OP_GET_ELEMENT, OP::OP_GET_ELEMENT4CALL);
622: }
623: #endif
624: };
1.38 paf 625:
1.259 misha 626: store_params: store_param | store_params store_param { $$=$1; P(*$$, *$2); };
1.69 paf 627: store_param:
628: store_square_param
629: | store_round_param
630: | store_curly_param
1.31 paf 631: ;
1.210 paf 632: store_square_param: '[' {
1.211 paf 633: // allow ^call[ letters here any time ]
1.210 paf 634: *reinterpret_cast<bool*>(&$$)=PC.explicit_result; PC.explicit_result=false;
635: } store_code_param_parts {
1.213 paf 636: PC.explicit_result=*reinterpret_cast<bool*>(&$2);
1.259 misha 637: } ']' {$$=$3;};
638: store_round_param: '(' store_expr_param_parts ')' {$$=$2;};
639: store_curly_param: '{' store_curly_param_parts '}' {$$=$2;};
1.69 paf 640: store_code_param_parts:
641: store_code_param_part
1.259 misha 642: | store_code_param_parts ';' store_code_param_part { $$=$1; P(*$$, *$3); }
1.69 paf 643: ;
644: store_expr_param_parts:
645: store_expr_param_part
1.259 misha 646: | store_expr_param_parts ';' store_expr_param_part { $$=$1; P(*$$, *$3); }
1.69 paf 647: ;
1.94 paf 648: store_curly_param_parts:
649: store_curly_param_part
1.259 misha 650: | store_curly_param_parts ';' store_curly_param_part { $$=$1; P(*$$, *$3); }
1.94 paf 651: ;
1.120 paf 652: store_code_param_part: code_param_value {
1.32 paf 653: $$=$1;
1.120 paf 654: };
1.214 paf 655: store_expr_param_part: expr_value {
656: YYSTYPE expr_code=$1;
1.215 paf 657: if(expr_code->count()==3
1.234 misha 658: && (*expr_code)[0].code==OP::OP_VALUE) { // optimizing (double/bool/incidently 'string' too) case. [OP::OP_VALUE+origin+Double]. no evaluating
1.214 paf 659: $$=expr_code;
660: } else {
1.238 misha 661: YYSTYPE code=N();
1.229 misha 662: O(*code, OP::OP_PREPARE_TO_EXPRESSION);
1.214 paf 663: P(*code, *expr_code);
1.229 misha 664: O(*code, OP::OP_WRITE_EXPR_RESULT);
1.214 paf 665: $$=N();
1.229 misha 666: OA(*$$, OP::OP_EXPR_CODE__STORE_PARAM, code);
1.214 paf 667: }
1.69 paf 668: };
1.94 paf 669: store_curly_param_part: maybe_codes {
1.206 paf 670: $$=N();
1.229 misha 671: OA(*$$, OP::OP_CURLY_CODE__STORE_PARAM, $1);
1.94 paf 672: };
1.120 paf 673: code_param_value:
1.261 moko 674: empty_value /* optimized [;...] case */
1.120 paf 675: | STRING /* optimized [STRING] case */
676: | constructor_code_value /* [something complex] */
677: ;
1.1 paf 678:
679: /* name */
680:
1.259 misha 681: name_expr_dive_code: name_expr_value | name_path name_expr_value { $$=$1; P(*$$, *$2); };
1.1 paf 682:
1.259 misha 683: name_path: name_step | name_path name_step { $$=$1; P(*$$, *$2); };
1.1 paf 684: name_step: name_advance1 '.';
685: name_advance1: name_expr_value {
1.177 paf 686: // we know that name_advance1 not called from ^xxx context
687: // so we'll not check for operator call possibility as we do in name_advance2
688:
1.1 paf 689: /* stack: context */
690: $$=$1; /* stack: context,name */
1.267 misha 691: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT__SPECIAL
692: O(*$$, is_special_element(*$$) ? OP::OP_GET_ELEMENT__SPECIAL : OP::OP_GET_ELEMENT);
693: #else
1.229 misha 694: O(*$$, OP::OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */
1.267 misha 695: #endif
1.1 paf 696: };
697: name_advance2: name_expr_value {
698: /* stack: context */
699: $$=$1; /* stack: context,name */
1.267 misha 700: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT__SPECIAL
701: O(*$$, is_special_element(*$$) ? OP::OP_GET_ELEMENT__SPECIAL : OP::OP_GET_ELEMENT);
702: #else
1.229 misha 703: O(*$$, OP::OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */
1.267 misha 704: #endif
1.1 paf 705: }
1.4 paf 706: | STRING BOGUS
1.1 paf 707: ;
708: name_expr_value:
1.4 paf 709: STRING /* subname_is_const */
1.1 paf 710: | name_expr_subvar_value /* $subname_is_var_value */
1.160 parser 711: | name_expr_with_subvar_value /* xxx$part_of_subname_is_var_value */
1.166 parser 712: | name_square_code_value /* [codes] */
1.1 paf 713: ;
714: name_expr_subvar_value: '$' subvar_ref_name_rdive {
715: $$=$2;
1.229 misha 716: O(*$$, OP::OP_GET_ELEMENT);
1.1 paf 717: };
1.4 paf 718: name_expr_with_subvar_value: STRING subvar_get_writes {
1.238 misha 719: YYSTYPE code;
1.183 paf 720: {
1.206 paf 721: change_string_literal_to_write_string_literal(*(code=$1));
722: P(*code, *$2);
1.183 paf 723: }
1.206 paf 724: $$=N();
1.229 misha 725: OA(*$$, OP::OP_STRING_POOL, code);
1.1 paf 726: };
1.212 paf 727: name_square_code_value: '[' {
728: // allow $result_or_other_variable[ letters here any time ]
729: *reinterpret_cast<bool*>(&$$)=PC.explicit_result; PC.explicit_result=false;
730: } codes {
1.213 paf 731: PC.explicit_result=*reinterpret_cast<bool*>(&$2);
1.212 paf 732: } ']' {
1.206 paf 733: $$=N();
1.267 misha 734: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT__SPECIAL
735: if(!maybe_append_simple_diving_code(*$$, *$3))
736: #endif
737: {
1.229 misha 738: OA(*$$, OP::OP_OBJECT_POOL, $3); /* stack: empty write context */
1.183 paf 739: /* some code that writes to that context */
740: /* context=pop; stack: context.value() */
1.267 misha 741: }
1.160 parser 742: };
1.154 parser 743: subvar_ref_name_rdive: STRING {
1.206 paf 744: $$=N();
1.229 misha 745: O(*$$, OP::OP_WITH_READ);
1.206 paf 746: P(*$$, *$1);
1.1 paf 747: };
1.259 misha 748: subvar_get_writes: subvar__get_write | subvar_get_writes subvar__get_write { $$=$1; P(*$$, *$2); };
1.1 paf 749: subvar__get_write: '$' subvar_ref_name_rdive {
750: $$=$2;
1.229 misha 751: O(*$$, OP::OP_GET_ELEMENT__WRITE);
1.42 paf 752: };
753:
1.154 parser 754: class_prefix:
755: class_static_prefix
756: | class_constructor_prefix
757: ;
1.155 parser 758: class_static_prefix: STRING ':' {
759: $$=$1; // stack: class name string
1.206 paf 760: if(*LA2S(*$$) == BASE_NAME) { // pseudo BASE class
761: if(VStateless_class* base=PC.cclass->base_class()) {
762: change_string_literal_value(*$$, base->name());
1.189 paf 763: } else {
764: strcpy(PC.error, "no base class declared");
765: YYERROR;
766: }
767: }
1.238 misha 768: // optimized OP_VALUE+origin+string+OP_GET_CLASS => OP_VALUE__GET_CLASS+origin+string
1.267 misha 769: change_first(*$$, OP::OP_VALUE, OP::OP_VALUE__GET_CLASS);
1.155 parser 770: };
771: class_constructor_prefix: class_static_prefix ':' {
1.154 parser 772: $$=$1;
1.180 paf 773: if(!PC.in_call_value) {
1.154 parser 774: strcpy(PC.error, ":: not allowed here");
775: YYERROR;
776: }
1.229 misha 777: O(*$$, OP::OP_PREPARE_TO_CONSTRUCT_OBJECT);
1.1 paf 778: };
779:
1.53 paf 780:
1.56 paf 781: /* expr */
1.53 paf 782:
1.214 paf 783: expr_value: expr;
1.56 paf 784: expr:
1.214 paf 785: double_or_STRING
1.216 paf 786: | true_value
787: | false_value
1.64 paf 788: | get_value
1.66 paf 789: | call_value
1.259 misha 790: | '"' string_inside_quotes_value '"' { $$ = $2; }
791: | '\'' string_inside_quotes_value '\'' { $$ = $2; }
1.60 paf 792: | '(' expr ')' { $$ = $2; }
793: /* stack: operand // stack: @operand */
1.259 misha 794: | '-' expr %prec NUNARY { $$=$2; O(*$$, OP::OP_NEG); }
795: | '+' expr %prec NUNARY { $$=$2; }
796: | '~' expr { $$=$2; O(*$$, OP::OP_INV); }
797: | '!' expr { $$=$2; O(*$$, OP::OP_NOT); }
798: | "def" expr { $$=$2; O(*$$, OP::OP_DEF); }
799: | "in" expr { $$=$2; O(*$$, OP::OP_IN); }
800: | "-f" expr { $$=$2; O(*$$, OP::OP_FEXISTS); }
801: | "-d" expr { $$=$2; O(*$$, OP::OP_DEXISTS); }
1.60 paf 802: /* stack: a,b // stack: a@b */
1.259 misha 803: | expr '-' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_SUB); }
804: | expr '+' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_ADD); }
805: | expr '*' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_MUL); }
806: | expr '/' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_DIV); }
807: | expr '%' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_MOD); }
808: | expr '\\' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_INTDIV); }
809: | expr "<<" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_SL); }
810: | expr ">>" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_SR); }
811: | expr '&' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_AND); }
812: | expr '|' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_OR); }
813: | expr "!|" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_XOR); }
814: | expr "&&" expr { $$=$1; OA(*$$, OP::OP_NESTED_CODE, $3); O(*$$, OP::OP_LOG_AND); }
815: | expr "||" expr { $$=$1; OA(*$$, OP::OP_NESTED_CODE, $3); O(*$$, OP::OP_LOG_OR); }
816: | expr "!||" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_LOG_XOR); }
817: | expr '<' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_LT); }
818: | expr '>' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_GT); }
819: | expr "<=" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_LE); }
820: | expr ">=" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_GE); }
821: | expr "==" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_EQ); }
822: | expr "!=" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_NE); }
823: | expr "lt" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_LT); }
824: | expr "gt" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_GT); }
825: | expr "le" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_LE); }
826: | expr "ge" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_GE); }
827: | expr "eq" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_EQ); }
828: | expr "ne" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_NE); }
829: | expr "is" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_IS); }
1.56 paf 830: ;
1.214 paf 831:
832: double_or_STRING: STRING {
1.238 misha 833: // optimized OP_STRING => OP_VALUE for doubles
1.214 paf 834: maybe_change_string_literal_to_double_literal(*($$=$1));
835: };
1.55 paf 836:
1.65 paf 837: string_inside_quotes_value: maybe_codes {
1.238 misha 838: #ifdef OPTIMIZE_BYTECODE_STRING_POOL
839: // it brakes ^if(" 09 "){...}
840: YYSTYPE code=$1;
841: $$=N();
1.267 misha 842: if(code->count()==3 && change_first(*code, OP::OP_STRING__WRITE, OP::OP_VALUE)){
1.238 misha 843: // optimized OP_STRING__WRITE+origin+value => OP_VALUE+origin+value without starting OP_STRING_POOL
844: P(*$$, *code);
845: } else {
846: OA(*$$, OP::OP_STRING_POOL, code); /* stack: empty write context */
847: }
848: #else
1.206 paf 849: $$=N();
1.229 misha 850: OA(*$$, OP::OP_STRING_POOL, $1); /* stack: empty write context */
1.238 misha 851: #endif
1.183 paf 852: /* some code that writes to that context */
853: /* context=pop; stack: context.get_string() */
1.53 paf 854: };
1.1 paf 855:
1.27 paf 856: /* basics */
1.1 paf 857:
1.81 paf 858: write_string: STRING {
1.238 misha 859: // optimized OP_STRING+OP_WRITE_VALUE => OP_STRING__WRITE
1.259 misha 860: change_string_literal_to_write_string_literal(*($$=$1));
1.54 paf 861: };
862:
1.261 moko 863: empty_value: /* empty */ { $$=VL(/*we know that we will not change it*/const_cast<VString*>(&vempty), 0, 0, 0); }
1.259 misha 864: true_value: "true" { $$ = VL(/*we know that we will not change it*/const_cast<VBool*>(&vtrue), 0, 0, 0); }
865: false_value: "false" { $$ = VL(/*we know that we will not change it*/const_cast<VBool*>(&vfalse), 0, 0, 0); }
1.216 paf 866:
1.259 misha 867: empty: /* empty */ { $$=N(); };
1.1 paf 868:
869: %%
1.105 paf 870: #endif
1.1 paf 871:
872: /*
873: 000$111(2222)00
874: 000$111{3333}00
1.9 paf 875: $,^: push,=0
1.1 paf 876: 1:( { break=pop
877: 2:( ) pop
878: 3:{ } pop
879:
880: 000^111(2222)4444{33333}4000
1.9 paf 881: $,^: push,=0
1.1 paf 882: 1:( { break=pop
883: 2:( )=4
884: 3:{ }=4
885: 4:[^({]=pop
886: */
887:
1.206 paf 888: inline void ungetc(Parse_control& pc, uint last_line_end_col) {
889: pc.source--;
890: if(pc.pos.col==0) {
891: --pc.pos.line; pc.pos.col=last_line_end_col;
892: } else
893: --pc.pos.col;
894:
895: }
896: static int yylex(YYSTYPE *lvalp, void *apc) {
897: register Parse_control& pc=*static_cast<Parse_control*>(apc);
898:
899: #define lexical_brackets_nestage pc.brackets_nestages[pc.ls_sp]
1.48 paf 900: #define RC {result=c; goto break2; }
1.1 paf 901:
1.206 paf 902: register int c;
903: int result;
1.1 paf 904:
1.206 paf 905: if(pc.pending_state) {
906: result=pc.pending_state;
907: pc.pending_state=0;
1.1 paf 908: return result;
909: }
910:
1.206 paf 911: const char *begin=pc.source;
912: Pos begin_pos=pc.pos;
1.91 paf 913: const char *end;
1.67 paf 914: int skip_analized=0;
1.50 paf 915: while(true) {
1.206 paf 916: c=*(end=(pc.source++));
917: // fprintf(stderr, "\nchar: %c %02X; nestage: %d, sp=%d", c, c, lexical_brackets_nestage, pc.sp);
1.1 paf 918:
1.208 paf 919: if(c=='\n')
1.206 paf 920: pc.pos_next_line();
1.208 paf 921: else
1.206 paf 922: pc.pos_next_c(c);
1.208 paf 923: // fprintf(stderr, "\nchar: %c file(%d:%d)", c, pc.pos.line, pc.pos.col);
1.73 paf 924:
1.208 paf 925: if(pc.pos.col==0+1 && c=='@') {
1.206 paf 926: if(pc.ls==LS_DEF_SPECIAL_BODY) {
1.175 paf 927: // @SPECIAL
928: // ...
929: // @<here =
1.206 paf 930: pop_LS(pc); // exiting from LS_DEF_SPECIAL_BODY state
1.175 paf 931: } // continuing checks
1.206 paf 932: if(pc.ls==LS_USER) {
933: push_LS(pc, LS_DEF_NAME);
1.171 parser 934: RC;
1.175 paf 935: } else // @ in first column inside some code [when could that be?]
1.171 parser 936: result=BAD_METHOD_DECL_START;
937: goto break2;
1.209 paf 938: }
939: if(c=='^') {
1.206 paf 940: if(pc.ls==LS_METHOD_AFTER) {
1.203 paf 941: // handle after-method situation
1.206 paf 942: pop_LS(pc);
1.203 paf 943: result=EON;
944: skip_analized=-1; // return to punctuation afterwards to assure it's literality
945: goto break2;
946: }
1.206 paf 947: switch(pc.ls) {
1.169 parser 948: case LS_EXPRESSION_VAR_NAME_WITH_COLON:
949: case LS_EXPRESSION_VAR_NAME_WITHOUT_COLON:
950: case LS_VAR_NAME_SIMPLE_WITH_COLON:
951: case LS_VAR_NAME_SIMPLE_WITHOUT_COLON:
952: case LS_VAR_NAME_CURLY:
953: case LS_METHOD_NAME:
1.194 paf 954: case LS_USER_COMMENT:
1.169 parser 955: case LS_DEF_COMMENT:
956: // no literals in names, please
957: break;
958: default:
1.206 paf 959: switch(*pc.source) {
1.165 parser 960: // ^escaping some punctuators
1.228 misha 961: case '^': case '$': case ';': case '@':
1.126 paf 962: case '(': case ')':
1.48 paf 963: case '[': case ']':
964: case '{': case '}':
1.172 parser 965: case '"': case ':':
1.40 paf 966: if(end!=begin) {
1.206 paf 967: if(!pc.string_start)
968: pc.string_start=begin_pos;
1.40 paf 969: // append piece till ^
1.206 paf 970: pc.string.append_strdup_know_length(begin, end-begin);
1.40 paf 971: }
1.63 paf 972: // reset piece 'begin' position & line
1.206 paf 973: begin=pc.source; // ->punctuation
974: begin_pos=pc.pos;
1.203 paf 975: // skip over _ after ^
1.206 paf 976: pc.source++; pc.pos.col++;
1.203 paf 977: // skip analysis = forced literal
978: continue;
1.114 paf 979:
980: // converting ^#HH into char(hex(HH))
981: case '#':
982: if(end!=begin) {
1.206 paf 983: if(!pc.string_start)
984: pc.string_start=begin_pos;
1.114 paf 985: // append piece till ^
1.206 paf 986: pc.string.append_strdup_know_length(begin, end-begin);
1.114 paf 987: }
988: // #HH ?
1.228 misha 989: if(pc.source[1] && isxdigit(pc.source[1]) && pc.source[2] && isxdigit(pc.source[2])) {
1.218 paf 990: char c=(char)(
1.206 paf 991: hex_value[(unsigned char)pc.source[1]]*0x10+
1.218 paf 992: hex_value[(unsigned char)pc.source[2]]);
1.206 paf 993: if(c==0) {
1.114 paf 994: result=BAD_HEX_LITERAL;
995: goto break2; // wrong hex value[no ^#00 chars allowed]: bail out
996: }
997: // append char(hex(HH))
1.206 paf 998: pc.string.append(c);
1.114 paf 999: // skip over ^#HH
1.206 paf 1000: pc.source+=3;
1001: pc.pos.col+=3;
1.114 paf 1002: // reset piece 'begin' position & line
1.206 paf 1003: begin=pc.source; // ->after ^#HH
1004: begin_pos=pc.pos;
1.203 paf 1005: // skip analysis = forced literal
1.114 paf 1006: continue;
1007: }
1.228 misha 1008: // just escaped char
1009: // reset piece 'begin' position & line
1010: begin=pc.source;
1011: begin_pos=pc.pos;
1012: // skip over _ after ^
1013: pc.source++; pc.pos.col++;
1014: // skip analysis = forced literal
1015: continue;
1.1 paf 1016: }
1.169 parser 1017: break;
1.203 paf 1018: }
1.169 parser 1019: }
1.113 paf 1020: // #comment start skipping
1.206 paf 1021: if(c=='#' && pc.pos.col==1) {
1.112 paf 1022: if(end!=begin) {
1.206 paf 1023: if(!pc.string_start)
1024: pc.string_start=begin_pos;
1.112 paf 1025: // append piece till #
1.206 paf 1026: pc.string.append_strdup_know_length(begin, end-begin);
1.112 paf 1027: }
1028: // fall into COMMENT lexical state [wait for \n]
1.206 paf 1029: push_LS(pc, LS_USER_COMMENT);
1.175 paf 1030: continue;
1.112 paf 1031: }
1.206 paf 1032: switch(pc.ls) {
1.10 paf 1033:
1034: // USER'S = NOT OURS
1.1 paf 1035: case LS_USER:
1.206 paf 1036: case LS_NAME_SQUARE_PART: // name.[here].xxx
1037: if(pc.trim_bof)
1.153 parser 1038: switch(c) {
1039: case '\n': case ' ': case '\t':
1.206 paf 1040: begin=pc.source;
1041: begin_pos=pc.pos;
1.152 parser 1042: continue; // skip it
1.153 parser 1043: default:
1.206 paf 1044: pc.trim_bof=false;
1.152 parser 1045: }
1.48 paf 1046: switch(c) {
1047: case '$':
1.206 paf 1048: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1049: RC;
1050: case '^':
1.206 paf 1051: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1052: RC;
1.166 parser 1053: case ']':
1.206 paf 1054: if(pc.ls==LS_NAME_SQUARE_PART)
1.166 parser 1055: if(--lexical_brackets_nestage==0) {// $name.[co<]?>de<]?>
1.206 paf 1056: pop_LS(pc); // $name.[co<]>de<]!>
1.166 parser 1057: RC;
1058: }
1.160 parser 1059: break;
1.166 parser 1060: case '[': // $name.[co<[>de]
1.206 paf 1061: if(pc.ls==LS_NAME_SQUARE_PART)
1.166 parser 1062: lexical_brackets_nestage++;
1.161 parser 1063: break;
1.112 paf 1064: }
1.209 paf 1065: if(pc.explicit_result && c)
1066: switch(c) {
1067: case '\n': case ' ': case '\t':
1068: begin=pc.source;
1069: begin_pos=pc.pos;
1070: continue; // skip it
1071: default:
1072: result=BAD_NONWHITESPACE_CHARACTER_IN_EXPLICIT_RESULT_MODE;
1073: goto break2;
1074: }
1.112 paf 1075: break;
1076:
1077: // #COMMENT
1.194 paf 1078: case LS_USER_COMMENT:
1.112 paf 1079: if(c=='\n') {
1080: // skip comment
1.206 paf 1081: begin=pc.source;
1082: begin_pos=pc.pos;
1.112 paf 1083:
1.206 paf 1084: pop_LS(pc);
1.112 paf 1085: continue;
1.1 paf 1086: }
1.48 paf 1087: break;
1088:
1089: // STRING IN EXPRESSION
1.145 parser 1090: case LS_EXPRESSION_STRING_QUOTED:
1091: case LS_EXPRESSION_STRING_APOSTROFED:
1.48 paf 1092: switch(c) {
1093: case '"':
1.145 parser 1094: case '\'':
1095: if(
1.270 moko 1096: (pc.ls == LS_EXPRESSION_STRING_QUOTED && c=='"') ||
1097: (pc.ls == LS_EXPRESSION_STRING_APOSTROFED && c=='\'') ) {
1.206 paf 1098: pop_LS(pc); //"abc". | 'abc'.
1.145 parser 1099: RC;
1100: }
1101: break;
1.48 paf 1102: case '$':
1.206 paf 1103: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1104: RC;
1105: case '^':
1.206 paf 1106: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1107: RC;
1.10 paf 1108: }
1109: break;
1110:
1111: // METHOD DEFINITION
1112: case LS_DEF_NAME:
1.48 paf 1113: switch(c) {
1114: case '[':
1.206 paf 1115: pc.ls=LS_DEF_PARAMS;
1.48 paf 1116: RC;
1117: case '\n':
1.206 paf 1118: pc.ls=LS_DEF_SPECIAL_BODY;
1.48 paf 1119: RC;
1.10 paf 1120: }
1121: break;
1.48 paf 1122:
1.10 paf 1123: case LS_DEF_PARAMS:
1.48 paf 1124: switch(c) {
1.192 paf 1125: case '$': // common error
1.193 paf 1126: result=BAD_METHOD_PARAMETER_NAME_CHARACTER;
1127: goto break2;
1.48 paf 1128: case ';':
1129: RC;
1130: case ']':
1.206 paf 1131: pc.ls=*pc.source=='['?LS_DEF_LOCALS:LS_DEF_COMMENT;
1.48 paf 1132: RC;
1.49 paf 1133: case '\n': // wrong. bailing out
1.206 paf 1134: pop_LS(pc);
1.48 paf 1135: RC;
1.10 paf 1136: }
1137: break;
1.48 paf 1138:
1.10 paf 1139: case LS_DEF_LOCALS:
1.48 paf 1140: switch(c) {
1141: case '[':
1142: case ';':
1143: RC;
1144: case ']':
1.206 paf 1145: pc.ls=LS_DEF_COMMENT;
1.48 paf 1146: RC;
1147: case '\n': // wrong. bailing out
1.206 paf 1148: pop_LS(pc);
1.48 paf 1149: RC;
1.10 paf 1150: }
1151: break;
1.48 paf 1152:
1.10 paf 1153: case LS_DEF_COMMENT:
1154: if(c=='\n') {
1.206 paf 1155: pop_LS(pc);
1.48 paf 1156: RC;
1.37 paf 1157: }
1158: break;
1159:
1.48 paf 1160: case LS_DEF_SPECIAL_BODY:
1.175 paf 1161: if(c=='\n')
1.48 paf 1162: RC;
1163: break;
1164:
1165: // (EXPRESSION)
1.69 paf 1166: case LS_VAR_ROUND:
1167: case LS_METHOD_ROUND:
1.48 paf 1168: switch(c) {
1169: case ')':
1.270 moko 1170: if(--lexical_brackets_nestage==0) {
1.206 paf 1171: if(pc.ls==LS_METHOD_ROUND) // method round param ended
1172: pc.ls=LS_METHOD_AFTER; // look for method end
1173: else // pc.ls==LS_VAR_ROUND // variable constructor ended
1174: pop_LS(pc); // return to normal life
1.270 moko 1175: }
1.48 paf 1176: RC;
1.194 paf 1177: case '#': // comment start skipping
1178: if(end!=begin) {
1.206 paf 1179: if(!pc.string_start)
1180: pc.string_start=begin_pos;
1.194 paf 1181: // append piece till #
1.206 paf 1182: pc.string.append_strdup_know_length(begin, end-begin);
1.194 paf 1183: }
1184: // fall into COMMENT lexical state [wait for \n]
1.206 paf 1185: push_LS(pc, LS_EXPRESSION_COMMENT);
1.194 paf 1186: lexical_brackets_nestage=1;
1187: continue;
1.48 paf 1188: case '$':
1.206 paf 1189: push_LS(pc, LS_EXPRESSION_VAR_NAME_WITH_COLON);
1.48 paf 1190: RC;
1191: case '^':
1.206 paf 1192: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1193: RC;
1194: case '(':
1195: lexical_brackets_nestage++;
1196: RC;
1.67 paf 1197: case '-':
1.206 paf 1198: switch(*pc.source) {
1.127 paf 1199: case 'f': // -f
1.67 paf 1200: skip_analized=1;
1201: result=FEXISTS;
1.127 paf 1202: goto break2;
1203: case 'd': // -d
1204: skip_analized=1;
1205: result=DEXISTS;
1206: goto break2;
1.191 paf 1207: default: // minus
1.67 paf 1208: result=c;
1.127 paf 1209: goto break2;
1210: }
1.67 paf 1211: goto break2;
1.173 paf 1212: case '+': case '*': case '/': case '%': case '\\':
1.58 paf 1213: case '~':
1.48 paf 1214: case ';':
1215: RC;
1.193 paf 1216: case '&': case '|':
1.206 paf 1217: if(*pc.source==c) { // && ||
1.193 paf 1218: result=c=='&'?LAND:LOR;
1.67 paf 1219: skip_analized=1;
1.58 paf 1220: } else
1221: result=c;
1222: goto break2;
1.193 paf 1223: case '!':
1.206 paf 1224: switch(pc.source[0]) {
1.193 paf 1225: case '|': // !| !||
1226: skip_analized=1;
1.206 paf 1227: if(pc.source[1]=='|') {
1.193 paf 1228: skip_analized++;
1229: result=LXOR;
1230: } else
1231: result=NXOR;
1232: goto break2;
1233: case '=': // !=
1234: skip_analized=1;
1235: result=NNE;
1236: goto break2;
1237: }
1238: RC;
1.195 paf 1239:
1240: case '<': // <<, <=, <
1.206 paf 1241: switch(*pc.source) {
1.195 paf 1242: case '<': // <[<]
1243: skip_analized=1; result=NSL; break;
1244: case '=': // <[=]
1245: skip_analized=1; result=NLE; break;
1246: default: // <[]
1247: result=c; break;
1248: }
1249: goto break2;
1250: case '>': // >>, >=, >
1.206 paf 1251: switch(*pc.source) {
1.195 paf 1252: case '>': // >[>]
1253: skip_analized=1; result=NSR; break;
1254: case '=': // >[=]
1255: skip_analized=1; result=NGE; break;
1256: default: // >[]
1257: result=c; break;
1258: }
1259: goto break2;
1260: case '=': // ==
1.206 paf 1261: switch(*pc.source) {
1.195 paf 1262: case '=': // =[=]
1263: skip_analized=1; result=NEQ; break;
1264: default: // =[]
1265: result=c; break; // not used now
1266: }
1.58 paf 1267: goto break2;
1.195 paf 1268:
1.48 paf 1269: case '"':
1.206 paf 1270: push_LS(pc, LS_EXPRESSION_STRING_QUOTED);
1.145 parser 1271: RC;
1272: case '\'':
1.206 paf 1273: push_LS(pc, LS_EXPRESSION_STRING_APOSTROFED);
1.48 paf 1274: RC;
1.50 paf 1275: case 'l': case 'g': case 'e': case 'n':
1.51 paf 1276: if(end==begin) // right after whitespace
1.206 paf 1277: if(isspace(pc.source[1])) {
1278: switch(*pc.source) {
1.117 paf 1279: // case '?': // ok [and bad cases, yacc would bark at them]
1280: case 't': // lt gt [et nt]
1281: result=c=='l'?SLT:c=='g'?SGT:BAD_STRING_COMPARISON_OPERATOR;
1282: skip_analized=1;
1283: goto break2;
1284: case 'e': // le ge ne [ee]
1285: result=c=='l'?SLE:c=='g'?SGE:c=='n'?SNE:BAD_STRING_COMPARISON_OPERATOR;
1286: skip_analized=1;
1287: goto break2;
1288: case 'q': // eq [lq gq nq]
1289: result=c=='e'?SEQ:BAD_STRING_COMPARISON_OPERATOR;
1290: skip_analized=1;
1291: goto break2;
1292: }
1.67 paf 1293: }
1294: break;
1295: case 'i':
1296: if(end==begin) // right after whitespace
1.206 paf 1297: if(isspace(pc.source[1])) {
1298: switch(pc.source[0]) {
1.117 paf 1299: case 'n': // in
1.95 paf 1300: skip_analized=1;
1301: result=IN;
1302: goto break2;
1.117 paf 1303: case 's': // is
1.95 paf 1304: skip_analized=1;
1305: result=IS;
1306: goto break2;
1307: }
1.67 paf 1308: }
1309: break;
1310: case 'd':
1311: if(end==begin) // right after whitespace
1.206 paf 1312: if(pc.source[0]=='e' && pc.source[1]=='f') { // def
1.225 misha 1313: switch(pc.source[2]){
1314: case ' ': case '\t': case '\n': case '"': case '\'': case '^': case '$': // non-quoted string without whitespace after 'def' is not allowed
1315: skip_analized=2;
1316: result=DEF;
1317: goto break2;
1318: }
1319: // error: incorrect char after 'def'
1.50 paf 1320: }
1.48 paf 1321: break;
1.216 paf 1322: case 't':
1323: if(end==begin) // right after whitespace
1.225 misha 1324: if(pc.source[0]=='r' && pc.source[1]=='u' && pc.source[2]=='e') { // true
1.216 paf 1325: skip_analized=3;
1326: result=LITERAL_TRUE;
1327: goto break2;
1328: }
1329: break;
1330: case 'f':
1331: if(end==begin) // right after whitespace
1.225 misha 1332: if(pc.source[0]=='a' && pc.source[1]=='l' && pc.source[2]=='s' && pc.source[3]=='e') { // false
1.216 paf 1333: skip_analized=4;
1334: result=LITERAL_FALSE;
1335: goto break2;
1336: }
1337: break;
1.48 paf 1338: case ' ': case '\t': case '\n':
1.63 paf 1339: if(end!=begin) { // there were a string after previous operator?
1340: result=0; // return that string
1341: goto break2;
1.48 paf 1342: }
1.63 paf 1343: // that's a leading|traling space or after-operator-space
1344: // ignoring it
1345: // reset piece 'begin' position & line
1.206 paf 1346: begin=pc.source; // after whitespace char
1347: begin_pos=pc.pos;
1.48 paf 1348: continue;
1.1 paf 1349: }
1350: break;
1.194 paf 1351: case LS_EXPRESSION_COMMENT:
1352: if(c=='(')
1353: lexical_brackets_nestage++;
1354:
1.206 paf 1355: switch(*pc.source) {
1.194 paf 1356: case '\n': case ')':
1.206 paf 1357: if(*pc.source==')')
1.194 paf 1358: if(--lexical_brackets_nestage!=0)
1359: continue;
1360:
1361: // skip comment
1.206 paf 1362: begin=pc.source;
1363: begin_pos=pc.pos;
1.194 paf 1364:
1.206 paf 1365: pop_LS(pc);
1.194 paf 1366: continue;
1367: }
1368: break;
1.1 paf 1369:
1.10 paf 1370: // VARIABLE GET/PUT/WITH
1.166 parser 1371: case LS_VAR_NAME_SIMPLE_WITH_COLON:
1372: case LS_VAR_NAME_SIMPLE_WITHOUT_COLON:
1373: case LS_EXPRESSION_VAR_NAME_WITH_COLON:
1374: case LS_EXPRESSION_VAR_NAME_WITHOUT_COLON:
1375: if(
1.206 paf 1376: pc.ls==LS_EXPRESSION_VAR_NAME_WITH_COLON ||
1377: pc.ls==LS_EXPRESSION_VAR_NAME_WITHOUT_COLON) {
1.181 paf 1378: // name in expr ends also before
1.48 paf 1379: switch(c) {
1.181 paf 1380: // expression minus
1.92 paf 1381: case '-':
1.181 paf 1382: // expression integer division
1383: case '\\':
1.206 paf 1384: pop_LS(pc);
1385: pc.ungetc();
1.48 paf 1386: result=EON;
1387: goto break2;
1388: }
1389: }
1.166 parser 1390: if(
1.206 paf 1391: pc.ls==LS_VAR_NAME_SIMPLE_WITHOUT_COLON ||
1392: pc.ls==LS_EXPRESSION_VAR_NAME_WITHOUT_COLON) {
1.142 parser 1393: // name already has ':', stop before next
1394: switch(c) {
1395: case ':':
1.206 paf 1396: pop_LS(pc);
1397: pc.ungetc();
1.142 parser 1398: result=EON;
1399: goto break2;
1400: }
1401: }
1.48 paf 1402: switch(c) {
1403: case 0:
1404: case ' ': case '\t': case '\n':
1405: case ';':
1.126 paf 1406: case ']': case '}': case ')':
1407: case '"': case '\'':
1.139 parser 1408: case '<': case '>': // these stand for HTML brackets AND expression binary ops
1.253 misha 1409: case '+': case '*': case '/': case '\\': case '%':
1.92 paf 1410: case '&': case '|':
1411: case '=': case '!':
1.99 paf 1412: // common delimiters
1.190 paf 1413: case ',': case '?': case '#':
1.220 paf 1414: // mysql column separators
1415: case '`':
1.139 parser 1416: // before call
1417: case '^':
1.206 paf 1418: pop_LS(pc);
1419: pc.ungetc();
1.13 paf 1420: result=EON;
1.1 paf 1421: goto break2;
1.48 paf 1422: case '[':
1.162 parser 1423: // $name.<[>code]
1.206 paf 1424: if(pc.pos.col>1/*not first column*/ && (
1.163 parser 1425: end[-1]=='$'/*was start of get*/ ||
1426: end[-1]==':'/*was class name delim */ ||
1427: end[-1]=='.'/*was name delim */
1.162 parser 1428: )) {
1.206 paf 1429: push_LS(pc, LS_NAME_SQUARE_PART);
1.162 parser 1430: lexical_brackets_nestage=1;
1431: RC;
1432: }
1.206 paf 1433: pc.ls=LS_VAR_SQUARE;
1.1 paf 1434: lexical_brackets_nestage=1;
1.48 paf 1435: RC;
1436: case '{':
1437: if(begin==end) { // ${name}, no need of EON, switching LS
1.206 paf 1438: pc.ls=LS_VAR_NAME_CURLY;
1.48 paf 1439: } else {
1.206 paf 1440: pc.ls=LS_VAR_CURLY;
1.48 paf 1441: lexical_brackets_nestage=1;
1442: }
1.69 paf 1443:
1.48 paf 1444: RC;
1445: case '(':
1.206 paf 1446: pc.ls=LS_VAR_ROUND;
1.1 paf 1447: lexical_brackets_nestage=1;
1.48 paf 1448: RC;
1449: case '.': // name part delim
1450: case '$': // name part subvar
1.160 parser 1451: case ':': // class<:>name
1.166 parser 1452: // go to _WITHOUT_COLON state variant...
1.206 paf 1453: if(pc.ls==LS_VAR_NAME_SIMPLE_WITH_COLON)
1454: pc.ls=LS_VAR_NAME_SIMPLE_WITHOUT_COLON;
1455: else if(pc.ls==LS_EXPRESSION_VAR_NAME_WITH_COLON)
1456: pc.ls=LS_EXPRESSION_VAR_NAME_WITHOUT_COLON;
1.166 parser 1457: // ...stop before next ':'
1.48 paf 1458: RC;
1.1 paf 1459: }
1460: break;
1.48 paf 1461:
1.1 paf 1462: case LS_VAR_NAME_CURLY:
1.48 paf 1463: switch(c) {
1.162 parser 1464: case '[':
1.166 parser 1465: // ${name.<[>code]}
1.206 paf 1466: push_LS(pc, LS_NAME_SQUARE_PART);
1.160 parser 1467: lexical_brackets_nestage=1;
1468: RC;
1.48 paf 1469: case '}': // ${name} finished, restoring LS
1.206 paf 1470: pop_LS(pc);
1.48 paf 1471: RC;
1472: case '.': // name part delim
1473: case '$': // name part subvar
1474: case ':': // ':name' or 'class:name'
1475: RC;
1.1 paf 1476: }
1477: break;
1.48 paf 1478:
1479: case LS_VAR_SQUARE:
1480: switch(c) {
1481: case '$':
1.206 paf 1482: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1483: RC;
1484: case '^':
1.206 paf 1485: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1486: RC;
1487: case ']':
1.1 paf 1488: if(--lexical_brackets_nestage==0) {
1.206 paf 1489: pop_LS(pc);
1.48 paf 1490: RC;
1.1 paf 1491: }
1.48 paf 1492: break;
1493: case ';': // operator_or_fmt;value delim
1494: RC;
1495: case '[':
1496: lexical_brackets_nestage++;
1497: break;
1.1 paf 1498: }
1499: break;
1.48 paf 1500:
1.1 paf 1501: case LS_VAR_CURLY:
1.48 paf 1502: switch(c) {
1503: case '$':
1.206 paf 1504: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1505: RC;
1506: case '^':
1.206 paf 1507: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1508: RC;
1509: case '}':
1.1 paf 1510: if(--lexical_brackets_nestage==0) {
1.206 paf 1511: pop_LS(pc);
1.48 paf 1512: RC;
1.1 paf 1513: }
1.48 paf 1514: break;
1515: case '{':
1.1 paf 1516: lexical_brackets_nestage++;
1.48 paf 1517: break;
1518: }
1.1 paf 1519: break;
1520:
1.10 paf 1521: // METHOD CALL
1.1 paf 1522: case LS_METHOD_NAME:
1.48 paf 1523: switch(c) {
1524: case '[':
1.166 parser 1525: // ^name.<[>code].xxx
1.206 paf 1526: if(pc.pos.col>1/*not first column*/ && (
1.163 parser 1527: end[-1]=='^'/*was start of call*/ || // never, ^[ is literal...
1528: end[-1]==':'/*was class name delim */ ||
1529: end[-1]=='.'/*was name delim */
1.162 parser 1530: )) {
1.206 paf 1531: push_LS(pc, LS_NAME_SQUARE_PART);
1.162 parser 1532: lexical_brackets_nestage=1;
1533: RC;
1534: }
1.206 paf 1535: pc.ls=LS_METHOD_SQUARE;
1.1 paf 1536: lexical_brackets_nestage=1;
1.48 paf 1537: RC;
1538: case '{':
1.206 paf 1539: pc.ls=LS_METHOD_CURLY;
1.1 paf 1540: lexical_brackets_nestage=1;
1.48 paf 1541: RC;
1.69 paf 1542: case '(':
1.206 paf 1543: pc.ls=LS_METHOD_ROUND;
1.69 paf 1544: lexical_brackets_nestage=1;
1545: RC;
1.48 paf 1546: case '.': // name part delim
1547: case '$': // name part subvar
1548: case ':': // ':name' or 'class:name'
1.170 parser 1549: case '^': // ^abc^xxx wrong. bailing out
1550: case ']': case '}': case ')': // ^abc]}) wrong. bailing out
1.207 paf 1551: case ' ': // ^if ( wrong. bailing out
1.48 paf 1552: RC;
1.1 paf 1553: }
1554: break;
1.48 paf 1555:
1556: case LS_METHOD_SQUARE:
1557: switch(c) {
1558: case '$':
1.206 paf 1559: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1560: RC;
1561: case '^':
1.206 paf 1562: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1563: RC;
1564: case ';': // param delim
1565: RC;
1566: case ']':
1.1 paf 1567: if(--lexical_brackets_nestage==0) {
1.206 paf 1568: pc.ls=LS_METHOD_AFTER;
1.48 paf 1569: RC;
1.1 paf 1570: }
1.48 paf 1571: break;
1572: case '[':
1.1 paf 1573: lexical_brackets_nestage++;
1.48 paf 1574: break;
1575: }
1.1 paf 1576: break;
1.48 paf 1577:
1.1 paf 1578: case LS_METHOD_CURLY:
1.48 paf 1579: switch(c) {
1580: case '$':
1.206 paf 1581: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1582: RC;
1583: case '^':
1.206 paf 1584: push_LS(pc, LS_METHOD_NAME);
1.94 paf 1585: RC;
1586: case ';': // param delim
1.48 paf 1587: RC;
1588: case '}':
1.1 paf 1589: if(--lexical_brackets_nestage==0) {
1.206 paf 1590: pc.ls=LS_METHOD_AFTER;
1.48 paf 1591: RC;
1.1 paf 1592: }
1.48 paf 1593: break;
1594: case '{':
1.1 paf 1595: lexical_brackets_nestage++;
1.48 paf 1596: break;
1597: }
1.209 paf 1598: if(pc.explicit_result && c)
1599: switch(c) {
1600: case '\n': case ' ': case '\t':
1601: begin=pc.source;
1602: begin_pos=pc.pos;
1603: continue; // skip it
1604: default:
1605: result=BAD_NONWHITESPACE_CHARACTER_IN_EXPLICIT_RESULT_MODE;
1606: goto break2;
1607: }
1.1 paf 1608: break;
1.48 paf 1609:
1.1 paf 1610: case LS_METHOD_AFTER:
1.69 paf 1611: if(c=='[') {/* ][ }[ )[ */
1.206 paf 1612: pc.ls=LS_METHOD_SQUARE;
1.1 paf 1613: lexical_brackets_nestage=1;
1.48 paf 1614: RC;
1.1 paf 1615: }
1.69 paf 1616: if(c=='{') {/* ]{ }{ ){ */
1.206 paf 1617: pc.ls=LS_METHOD_CURLY;
1.69 paf 1618: lexical_brackets_nestage=1;
1619: RC;
1620: }
1621: if(c=='(') {/* ]( }( )( */
1.206 paf 1622: pc.ls=LS_METHOD_ROUND;
1.1 paf 1623: lexical_brackets_nestage=1;
1.48 paf 1624: RC;
1.1 paf 1625: }
1.206 paf 1626: pop_LS(pc);
1627: pc.ungetc();
1.13 paf 1628: result=EON;
1.1 paf 1629: goto break2;
1630: }
1.9 paf 1631: if(c==0) {
1.1 paf 1632: result=-1;
1633: break;
1634: }
1635: }
1636:
1637: break2:
1.59 paf 1638: if(end!=begin) { // there is last piece?
1.258 misha 1639: if(c=='@' || c==0) // we are before LS_DEF_NAME or EOF?
1640: while(end!=begin && end[-1]=='\n') // trim all empty lines before LS_DEF_NAME and EOF
1.137 parser 1641: end--;
1.206 paf 1642: if(end!=begin && pc.ls!=LS_USER_COMMENT) { // last piece still alive and not comment?
1643: if(!pc.string_start)
1644: pc.string_start=begin_pos;
1.59 paf 1645: // append it
1.206 paf 1646: pc.string.append_strdup_know_length(begin, end-begin);
1.30 paf 1647: }
1.59 paf 1648: }
1.206 paf 1649: if(!pc.string.is_empty()) { // something accumulated?
1650: // create STRING value: array of OP_VALUE+origin+vstring
1651: *lvalp=VL(
1652: new VString(*new String(pc.string, String::L_CLEAN)),
1653: pc.file_no, pc.string_start.line, pc.string_start.col);
1.10 paf 1654: // new pieces storage
1.206 paf 1655: pc.string.clear();
1656: pc.string_start.clear();
1.58 paf 1657: // make current result be pending for next call, return STRING for now
1.206 paf 1658: pc.pending_state=result; result=STRING;
1.58 paf 1659: }
1.67 paf 1660: if(skip_analized) {
1.206 paf 1661: pc.source+=skip_analized; pc.pos.col+=skip_analized;
1.1 paf 1662: }
1.58 paf 1663: return result;
1.1 paf 1664: }
1665:
1.264 moko 1666: static int real_yyerror(Parse_control *pc, const char *s) { // Called by yyparse on error
1.114 paf 1667: strncpy(PC.error, s, MAX_STRING);
1.1 paf 1668: return 1;
1.110 paf 1669: }
1.1 paf 1670:
1.110 paf 1671: static void yyprint(FILE *file, int type, YYSTYPE value) {
1672: if(type==STRING)
1.206 paf 1673: fprintf(file, " \"%s\"", LA2S(*value)->cstr());
1.110 paf 1674: }
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