Annotation of parser3/src/main/compile.y, revision 1.272
1.168 parser 1: %{
1.105 paf 2: /** @file
1.106 paf 3: Parser: compiler(lexical parser and grammar).
4:
1.262 moko 5: Copyright (c) 2001-2012 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:
1.272 ! moko 11: volatile const char * IDENT_COMPILE_Y = "$Id: compile.y,v 1.271 2015/09/27 20:12:42 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;
1.206 paf 182: for(size_t i=0; i<strings_code->count(); i+=OPERATIONS_PER_OPVALUE)
1.260 misha 183: PC.request.use_file(PC.request.main_class, LA2S(*strings_code, i)->trim(String::TRIM_END), PC.request.get_used_filename(PC.file_no));
1.130 paf 184: } else if(command==BASE_NAME) {
1.226 misha 185: if(PC.append){
186: strcpy(PC.error, "can't set base while appending methods to class '");
187: strncat(PC.error, PC.cclass->name().cstr(), MAX_STRING/2);
188: strcat(PC.error, "'");
189: YYERROR;
190: }
1.265 moko 191: CLASS_ADD;
1.188 paf 192: if(PC.cclass->base_class()) { // already changed from default?
1.130 paf 193: strcpy(PC.error, "class already have a base '");
1.226 misha 194: strncat(PC.error, PC.cclass->base_class()->name().cstr(), MAX_STRING/2);
1.130 paf 195: strcat(PC.error, "'");
196: YYERROR;
197: }
1.206 paf 198: if(strings_code->count()==1*OPERATIONS_PER_OPVALUE) {
1.260 misha 199: const String& base_name=LA2S(*strings_code)->trim(String::TRIM_END);
1.252 misha 200: if(Value* base_class_value=PC.request.get_class(base_name)) {
1.206 paf 201: // @CLASS == @BASE sanity check
202: if(VStateless_class *base_class=base_class_value->get_class()) {
203: if(PC.cclass==base_class) {
1.268 moko 204: strcpy(PC.error, "@" CLASS_NAME " equals @" BASE_NAME);
1.206 paf 205: YYERROR;
206: }
207: PC.cclass->get_class()->set_base(base_class);
208: } else { // they asked to derive from a class without methods ['env' & co]
209: strcpy(PC.error, base_name.cstr());
1.268 moko 210: strcat(PC.error, ": you can not derive from this class in @" BASE_NAME);
1.206 paf 211: YYERROR;
212: }
213: } else {
1.130 paf 214: strcpy(PC.error, base_name.cstr());
1.268 moko 215: strcat(PC.error, ": undefined class in @" BASE_NAME);
1.73 paf 216: YYERROR;
217: }
1.34 paf 218: } else {
1.268 moko 219: strcpy(PC.error, "@" BASE_NAME " must contain sole name");
1.34 paf 220: YYERROR;
221: }
1.223 misha 222: } else if(command==OPTIONS_CONTROL_METHOD_NAME) {
223: for(size_t i=0; i<strings_code->count(); i+=OPERATIONS_PER_OPVALUE) {
1.260 misha 224: const String& option=LA2S(*strings_code, i)->trim(String::TRIM_END);
1.226 misha 225: if(option==OPTION_ALL_VARS_LOCAL_NAME){
226: PC.set_all_vars_local();
1.230 misha 227: } else if(option==OPTION_PARTIAL_CLASS){
228: if(PC.cclass_new){
229: if(VStateless_class* existed=PC.get_existed_class(PC.cclass_new)){
230: if(!PC.reuse_existed_class(existed)){
231: strcpy(PC.error, "can't append methods to '");
232: strncat(PC.error, PC.cclass_new->name().cstr(), MAX_STRING/2);
233: strcat(PC.error, "' - the class wasn't marked as partial");
234: YYERROR;
235: }
1.226 misha 236: } else {
1.256 misha 237: // marks the new class as partial. we will be able to add methods here later.
1.230 misha 238: PC.cclass_new->set_partial();
1.226 misha 239: }
1.230 misha 240: } else {
1.268 moko 241: strcpy(PC.error, "'" OPTION_PARTIAL_CLASS "' option should be used straight after @" CLASS_NAME);
1.226 misha 242: YYERROR;
243: }
1.256 misha 244: } else if(option==method_call_type_static){
245: PC.set_methods_call_type(Method::CT_STATIC);
246: } else if(option==method_call_type_dynamic){
247: PC.set_methods_call_type(Method::CT_DYNAMIC);
1.223 misha 248: } else {
1.226 misha 249: strcpy(PC.error, "'");
250: strncat(PC.error, option.cstr(), MAX_STRING/2);
251: strcat(PC.error, "' invalid option. valid options are "
1.268 moko 252: "'" OPTION_PARTIAL_CLASS "', '" OPTION_ALL_VARS_LOCAL_NAME "'"
253: ", '" METHOD_CALL_TYPE_STATIC "' and '" METHOD_CALL_TYPE_DYNAMIC "'"
1.256 misha 254: );
1.223 misha 255: YYERROR;
256: }
257: }
1.130 paf 258: } else {
259: strcpy(PC.error, "'");
260: strncat(PC.error, command.cstr(), MAX_STRING/2);
261: strcat(PC.error, "' invalid special name. valid names are "
1.268 moko 262: "'" CLASS_NAME "', '" USE_CONTROL_METHOD_NAME "', '" BASE_NAME "' and '" OPTIONS_CONTROL_METHOD_NAME "'.");
1.130 paf 263: YYERROR;
1.34 paf 264: }
265: };
1.132 paf 266: maybe_control_strings: empty | control_strings;
1.259 misha 267: control_strings: control_string | control_strings control_string { $$=$1; P(*$$, *$2); };
1.37 paf 268: control_string: maybe_string '\n';
269: maybe_string: empty | STRING;
1.34 paf 270:
1.222 misha 271: code_method: '@' STRING bracketed_maybe_strings maybe_bracketed_strings maybe_comment '\n' {
1.265 moko 272: CLASS_ADD;
1.208 paf 273: PC.explicit_result=false;
1.10 paf 274:
275: YYSTYPE params_names_code=$3;
1.206 paf 276: ArrayString* params_names=0;
277: if(int size=params_names_code->count()) {
278: params_names=new ArrayString;
279: for(int i=0; i<size; i+=OPERATIONS_PER_OPVALUE)
280: *params_names+=LA2S(*params_names_code, i);
1.75 paf 281: }
1.10 paf 282:
283: YYSTYPE locals_names_code=$4;
1.206 paf 284: ArrayString* locals_names=0;
1.223 misha 285: bool all_vars_local=false;
1.206 paf 286: if(int size=locals_names_code->count()) {
287: locals_names=new ArrayString;
1.208 paf 288: for(int i=0; i<size; i+=OPERATIONS_PER_OPVALUE) {
289: const String* local_name=LA2S(*locals_names_code, i);
290: if(*local_name==RESULT_VAR_NAME)
291: PC.explicit_result=true;
1.226 misha 292: else if(*local_name==OPTION_ALL_VARS_LOCAL_NAME)
1.223 misha 293: all_vars_local=true;
1.208 paf 294: else
295: *locals_names+=local_name;
296: }
1.75 paf 297: }
1.231 misha 298: if(!all_vars_local && PC.cclass && PC.cclass->is_vars_local())
1.223 misha 299: all_vars_local=true;
1.10 paf 300:
1.208 paf 301: Method* method=new Method(
1.206 paf 302: //name,
1.257 misha 303: GetMethodCallType(PC, *$2),
1.81 paf 304: 0, 0/*min,max numbered_params_count*/,
1.76 paf 305: params_names, locals_names,
1.223 misha 306: 0/*to be filled later in next {} */, 0, all_vars_local);
1.221 misha 307:
1.208 paf 308: *reinterpret_cast<Method**>(&$$)=method;
1.222 misha 309: } maybe_codes {
1.251 misha 310: Method* method=reinterpret_cast<Method*>($7);
1.231 misha 311: // fill in the code
1.251 misha 312: method->parser_code=$8;
1.231 misha 313:
314: // register in class
315: const String& name=*LA2S(*$2);
1.251 misha 316: PC.cclass->set_method(PC.alias_method(name), method);
1.8 paf 317: };
1.10 paf 318:
319: maybe_bracketed_strings: empty | bracketed_maybe_strings;
1.259 misha 320: bracketed_maybe_strings: '[' maybe_strings ']' {$$=$2;};
1.10 paf 321: maybe_strings: empty | strings;
1.259 misha 322: strings: STRING | strings ';' STRING { $$=$1; P(*$$, *$3); };
1.10 paf 323:
324: maybe_comment: empty | STRING;
1.1 paf 325:
326: /* codes */
327:
1.10 paf 328: maybe_codes: empty | codes;
329:
1.259 misha 330: codes: code | codes code { $$=$1; P(*$$, *$2); };
1.81 paf 331: code: write_string | action;
1.209 paf 332: action: get | put | call;
1.1 paf 333:
334: /* get */
335:
1.64 paf 336: get: get_value {
1.238 misha 337: $$=N();
338: YYSTYPE code=$1;
1.247 misha 339: size_t count=code->count();
1.245 misha 340:
1.235 misha 341: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
1.247 misha 342: if(
343: count!=3
1.267 misha 344: || !change_first(*code, OP::OP_VALUE__GET_ELEMENT, /*=>*/OP::OP_VALUE__GET_ELEMENT__WRITE)
1.247 misha 345: )
1.238 misha 346: #endif
1.247 misha 347:
1.245 misha 348: #ifdef OPTIMIZE_BYTECODE_GET_SELF_ELEMENT
1.247 misha 349: if(
350: count!=3
1.267 misha 351: || !change_first(*code, OP::OP_WITH_SELF__VALUE__GET_ELEMENT, /*=>*/OP::OP_WITH_SELF__VALUE__GET_ELEMENT__WRITE)
1.247 misha 352: )
1.245 misha 353: #endif
354:
1.239 misha 355: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_ELEMENT
1.247 misha 356: if(
357: count!=5
1.267 misha 358: || !change_first(*code, OP::OP_GET_OBJECT_ELEMENT, /*=>*/OP::OP_GET_OBJECT_ELEMENT__WRITE)
1.247 misha 359: )
1.239 misha 360: #endif
361:
362: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_VAR_ELEMENT
1.247 misha 363: if(
364: count!=5
1.267 misha 365: || !change_first(*code, OP::OP_GET_OBJECT_VAR_ELEMENT, /*=>*/OP::OP_GET_OBJECT_VAR_ELEMENT__WRITE)
1.247 misha 366: )
1.238 misha 367: #endif
1.267 misha 368:
369: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT__SPECIAL
370: if(
371: !change(*code, count-1/* last */, OP::OP_GET_ELEMENT__SPECIAL, /*=>*/OP::OP_GET_ELEMENT__SPECIAL__WRITE)
372: )
373: #endif
374:
1.247 misha 375: {
1.267 misha 376: change_or_append(*code, count-1 /* last */,
377: OP::OP_GET_ELEMENT, /*=>*/OP::OP_GET_ELEMENT__WRITE,
1.247 misha 378: /*or */OP::OP_WRITE_VALUE
379: ); /* value=pop; wcontext.write(value) */
1.246 misha 380: }
1.247 misha 381:
1.238 misha 382: P(*$$, *code);
1.1 paf 383: };
1.259 misha 384: get_value: '$' get_name_value { $$=$2; };
1.64 paf 385: get_name_value: name_without_curly_rdive EON | name_in_curly_rdive;
1.259 misha 386: name_in_curly_rdive: '{' name_without_curly_rdive '}' { $$=$2; };
1.44 paf 387: name_without_curly_rdive:
388: name_without_curly_rdive_read
389: | name_without_curly_rdive_class;
1.19 paf 390: name_without_curly_rdive_read: name_without_curly_rdive_code {
1.206 paf 391: $$=N();
1.238 misha 392: YYSTYPE diving_code=$1;
1.239 misha 393: size_t count=diving_code->count();
1.247 misha 394:
395: if(maybe_make_self(*$$, *diving_code, count)) {
396: // $self.
397: } else
1.239 misha 398:
399: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_ELEMENT
1.247 misha 400: if(maybe_make_get_object_element(*$$, *diving_code, count)){
1.245 misha 401: // optimization for $object.field + ^object.method[
1.247 misha 402: } else
1.238 misha 403: #endif
1.239 misha 404:
405: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_VAR_ELEMENT
1.247 misha 406: if(maybe_make_get_object_var_element(*$$, *diving_code, count)){
1.245 misha 407: // optimization for $object.$var
1.247 misha 408: } else
1.238 misha 409: #endif
1.239 misha 410:
411: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
1.248 misha 412: if(
413: count>=4
414: && (*diving_code)[0].code==OP::OP_VALUE
415: && (*diving_code)[3].code==OP::OP_GET_ELEMENT
416: ){
417: // optimization
1.239 misha 418: O(*$$,
1.247 misha 419: (PC.in_call_value && count==4)
1.239 misha 420: ? OP::OP_VALUE__GET_ELEMENT_OR_OPERATOR // ^object[ : OP_VALUE+origin+string+OP_GET_ELEMENT => OP_VALUE__GET_ELEMENT_OR_OPERATOR+origin+string
421: : OP::OP_VALUE__GET_ELEMENT // $object : OP_VALUE+origin+string+OP_GET_ELEMENT => OP_VALUE__GET_ELEMENT+origin+string
422: );
423: P(*$$, *diving_code, 1/*offset*/, 2/*limit*/); // copy origin+value
1.247 misha 424: if(count>4)
425: P(*$$, *diving_code, 4); // copy tail
1.239 misha 426: } else {
427: O(*$$, OP::OP_WITH_READ); /* stack: starting context */
428: P(*$$, *diving_code);
429: }
1.233 misha 430: #else
1.247 misha 431: {
1.238 misha 432: O(*$$, OP::OP_WITH_READ); /* stack: starting context */
1.179 paf 433:
1.238 misha 434: // ^if OP_ELEMENT => ^if OP_ELEMENT_OR_OPERATOR
435: // optimized OP_VALUE+origin+string+OP_GET_ELEMENT. => OP_VALUE+origin+string+OP_GET_ELEMENT_OR_OPERATOR.
1.239 misha 436: if(PC.in_call_value && count==4)
437: diving_code->put(count-1, OP::OP_GET_ELEMENT_OR_OPERATOR);
1.206 paf 438: P(*$$, *diving_code);
1.239 misha 439: }
1.233 misha 440: #endif
1.22 paf 441: /* diving code; stack: current context */
1.1 paf 442: };
1.259 misha 443: name_without_curly_rdive_class: class_prefix name_without_curly_rdive_code { $$=$1; P(*$$, *$2); };
444: name_without_curly_rdive_code: name_advance2 | name_path name_advance2 { $$=$1; P(*$$, *$2); };
1.1 paf 445:
446: /* put */
447:
1.81 paf 448: put: '$' name_expr_wdive construct {
1.241 misha 449: $$=N();
1.244 misha 450: #ifdef OPTIMIZE_BYTECODE_CONSTRUCT
451: if(maybe_optimize_construct(*$$, *$2, *$3)){
1.246 misha 452: // $a(expr), $.a(expr), $a[value], $.a[value], $self.a[value], $self.a(expr)
1.241 misha 453: } else
454: #endif
455: {
456: P(*$$, *$2); /* stack: context,name */
457: P(*$$, *$3); /* stack: context,name,constructor_value */
458: }
1.20 paf 459: };
1.44 paf 460: name_expr_wdive:
1.157 parser 461: name_expr_wdive_root
462: | name_expr_wdive_write
1.44 paf 463: | name_expr_wdive_class;
1.157 parser 464: name_expr_wdive_root: name_expr_dive_code {
1.206 paf 465: $$=N();
1.238 misha 466: YYSTYPE diving_code=$1;
1.247 misha 467: size_t count=diving_code->count();
468:
469: if(maybe_make_self(*$$, *diving_code, count)) {
470: // $self.
471: } else
472: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
473: if(
474: count>=4
475: && (*diving_code)[0].code==OP::OP_VALUE
476: && (*diving_code)[3].code==OP::OP_GET_ELEMENT
477: ){
478: O(*$$, OP::OP_WITH_ROOT__VALUE__GET_ELEMENT);
479: P(*$$, *diving_code, 1/*offset*/, 2/*limit*/); // copy origin+value
480: if(count>4)
481: P(*$$, *diving_code, 4); // tail
482: } else
483: #endif
484: {
1.229 misha 485: O(*$$, OP::OP_WITH_ROOT); /* stack: starting context */
1.206 paf 486: P(*$$, *diving_code);
1.23 paf 487: }
488: /* diving code; stack: current context */
1.156 parser 489: };
1.157 parser 490: name_expr_wdive_write: '.' name_expr_dive_code {
1.206 paf 491: $$=N();
1.229 misha 492: O(*$$, OP::OP_WITH_WRITE); /* stack: starting context */
1.206 paf 493: P(*$$, *$2); /* diving code; stack: context,name */
1.20 paf 494: };
1.259 misha 495: name_expr_wdive_class: class_prefix name_expr_dive_code { $$=$1; P(*$$, *$2); };
1.20 paf 496:
1.244 misha 497: construct:
1.163 parser 498: construct_square
499: | construct_round
500: | construct_curly
1.149 parser 501: ;
1.211 paf 502: construct_square: '[' {
503: // allow $result_or_other_variable[ letters here any time ]
504: *reinterpret_cast<bool*>(&$$)=PC.explicit_result; PC.explicit_result=false;
505: } any_constructor_code_value {
1.213 paf 506: PC.explicit_result=*reinterpret_cast<bool*>(&$2);
1.211 paf 507: } ']' {
1.149 parser 508: // stack: context, name
1.211 paf 509: $$=$3; // stack: context, name, value
1.229 misha 510: O(*$$, OP::OP_CONSTRUCT_VALUE); /* value=pop; name=pop; context=pop; construct(context,name,value) */
1.81 paf 511: }
512: ;
1.149 parser 513: construct_round: '(' expr_value ')' {
1.206 paf 514: $$=N();
1.229 misha 515: O(*$$, OP::OP_PREPARE_TO_EXPRESSION);
1.149 parser 516: // stack: context, name
1.206 paf 517: P(*$$, *$2); // stack: context, name, value
1.229 misha 518: O(*$$, OP::OP_CONSTRUCT_EXPR); /* value=pop->as_expr_result; name=pop; context=pop; construct(context,name,value) */
1.81 paf 519: }
1.52 paf 520: ;
1.149 parser 521: construct_curly: '{' maybe_codes '}' {
522: // stack: context, name
1.206 paf 523: $$=N();
1.229 misha 524: OA(*$$, OP::OP_CURLY_CODE__CONSTRUCT, $2); /* code=pop; name=pop; context=pop; construct(context,name,junction(code)) */
1.149 parser 525: };
526:
1.55 paf 527: any_constructor_code_value:
1.261 moko 528: empty_value /* optimized $var[] case */
1.52 paf 529: | STRING /* optimized $var[STRING] case */
1.55 paf 530: | constructor_code_value /* $var[something complex] */
1.1 paf 531: ;
1.55 paf 532: constructor_code_value: constructor_code {
1.206 paf 533: $$=N();
1.229 misha 534: OA(*$$, OP::OP_OBJECT_POOL, $1); /* stack: empty write context */
1.183 paf 535: /* some code that writes to that context */
536: /* context=pop; stack: context.value() */
1.1 paf 537: };
1.55 paf 538: constructor_code: codes__excluding_sole_str_literal;
1.259 misha 539: codes__excluding_sole_str_literal: action | code codes { $$=$1; P(*$$, *$2); };
1.27 paf 540:
1.1 paf 541: /* call */
542:
1.66 paf 543: call: call_value {
1.267 misha 544: size_t count=$1->count();
1.238 misha 545: #ifdef OPTIMIZE_BYTECODE_CUT_REM_OPERATOR
1.267 misha 546: if(count)
1.238 misha 547: #endif
548: {
549: $$=$1; /* stack: value */
1.267 misha 550: if(!change_first(*$$, OP::OP_CONSTRUCT_OBJECT, /*=>*/OP::OP_CONSTRUCT_OBJECT__WRITE))
551: change_or_append(*$$, count-2 /* second last */,
552: OP::OP_CALL, /*=>*/ OP::OP_CALL__WRITE,
1.249 misha 553: /*or */OP::OP_WRITE_VALUE); /* value=pop; wcontext.write(value) */
1.238 misha 554: }
1.66 paf 555: };
1.177 paf 556: call_value: '^' {
1.180 paf 557: PC.in_call_value=true;
1.177 paf 558: }
559: call_name {
1.180 paf 560: PC.in_call_value=false;
1.177 paf 561: }
1.154 parser 562: store_params EON { /* ^field.$method{vasya} */
1.238 misha 563: #ifdef OPTIMIZE_BYTECODE_CUT_REM_OPERATOR
1.242 misha 564: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
1.238 misha 565: const String* operator_name=LA2S(*$3, 0, OP::OP_VALUE__GET_ELEMENT_OR_OPERATOR);
1.242 misha 566: #else
567: const String* operator_name=LA2S(*$3, 1);
568: #endif
1.249 misha 569: if(operator_name && *operator_name==REM_OPERATOR_NAME){
1.238 misha 570: $$=N();
571: } else
572: #endif
573: {
574: YYSTYPE params_code=$5;
575: if(params_code->count()==3) { // probably [] case. [OP::OP_VALUE+origin+Void]
576: if(Value* value=LA2V(*params_code)) // it is OP_VALUE+origin+value?
1.261 moko 577: if(const String * string=value->get_string())
578: if(string->is_empty()) // value is empty string?
579: params_code=0; // ^zzz[] case. don't append lone empty param.
1.238 misha 580: }
581: /* stack: context, method_junction */
1.249 misha 582:
583: YYSTYPE var_code=$3;
584: if(
585: var_code->count()==8
586: && (*var_code)[0].code==OP::OP_VALUE__GET_CLASS
587: && (*var_code)[3].code==OP::OP_PREPARE_TO_CONSTRUCT_OBJECT
588: && (*var_code)[4].code==OP::OP_VALUE
1.272 ! moko 589: #ifdef FEATURE_GET_ELEMENT4CALL
! 590: && (*var_code)[7].code==OP::OP_GET_ELEMENT4CALL
! 591: #else
1.249 misha 592: && (*var_code)[7].code==OP::OP_GET_ELEMENT
1.272 ! moko 593: #endif
1.249 misha 594: ){
1.267 misha 595: $$=N();
1.249 misha 596: O(*$$, OP::OP_CONSTRUCT_OBJECT);
597: P(*$$, *var_code, 1/*offset*/, 2/*limit*/); // class name
598: P(*$$, *var_code, 5/*offset*/, 2/*limit*/); // constructor name
599: OA(*$$, params_code);
600: } else
601: {
602: $$=var_code; /* with_xxx,diving code; stack: context,method_junction */
603: OA(*$$, OP::OP_CALL, params_code); // method_frame=make frame(pop junction); ncontext=pop; call(ncontext,method_frame) stack: value
604: }
1.238 misha 605: }
1.1 paf 606: };
607:
1.272 ! moko 608: call_name: name_without_curly_rdive {
! 609: #ifdef FEATURE_GET_ELEMENT4CALL
! 610: size_t count=$1->count();
! 611: if(count){
! 612: $$=$1;
! 613: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_ELEMENT
! 614: !(count==5 && change_first(*$$, OP::OP_GET_OBJECT_ELEMENT, OP::OP_GET_OBJECT_ELEMENT4CALL)) &&
! 615: #endif
! 616: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_VAR_ELEMENT
! 617: !(count==5 && change_first(*$$, OP::OP_GET_OBJECT_VAR_ELEMENT, OP::OP_GET_OBJECT_VAR_ELEMENT4CALL)) &&
! 618: #endif
! 619: !change(*$$, count-1, OP::OP_GET_ELEMENT, OP::OP_GET_ELEMENT4CALL);
! 620: }
! 621: #endif
! 622: };
1.38 paf 623:
1.259 misha 624: store_params: store_param | store_params store_param { $$=$1; P(*$$, *$2); };
1.69 paf 625: store_param:
626: store_square_param
627: | store_round_param
628: | store_curly_param
1.31 paf 629: ;
1.210 paf 630: store_square_param: '[' {
1.211 paf 631: // allow ^call[ letters here any time ]
1.210 paf 632: *reinterpret_cast<bool*>(&$$)=PC.explicit_result; PC.explicit_result=false;
633: } store_code_param_parts {
1.213 paf 634: PC.explicit_result=*reinterpret_cast<bool*>(&$2);
1.259 misha 635: } ']' {$$=$3;};
636: store_round_param: '(' store_expr_param_parts ')' {$$=$2;};
637: store_curly_param: '{' store_curly_param_parts '}' {$$=$2;};
1.69 paf 638: store_code_param_parts:
639: store_code_param_part
1.259 misha 640: | store_code_param_parts ';' store_code_param_part { $$=$1; P(*$$, *$3); }
1.69 paf 641: ;
642: store_expr_param_parts:
643: store_expr_param_part
1.259 misha 644: | store_expr_param_parts ';' store_expr_param_part { $$=$1; P(*$$, *$3); }
1.69 paf 645: ;
1.94 paf 646: store_curly_param_parts:
647: store_curly_param_part
1.259 misha 648: | store_curly_param_parts ';' store_curly_param_part { $$=$1; P(*$$, *$3); }
1.94 paf 649: ;
1.120 paf 650: store_code_param_part: code_param_value {
1.32 paf 651: $$=$1;
1.120 paf 652: };
1.214 paf 653: store_expr_param_part: expr_value {
654: YYSTYPE expr_code=$1;
1.215 paf 655: if(expr_code->count()==3
1.234 misha 656: && (*expr_code)[0].code==OP::OP_VALUE) { // optimizing (double/bool/incidently 'string' too) case. [OP::OP_VALUE+origin+Double]. no evaluating
1.214 paf 657: $$=expr_code;
658: } else {
1.238 misha 659: YYSTYPE code=N();
1.229 misha 660: O(*code, OP::OP_PREPARE_TO_EXPRESSION);
1.214 paf 661: P(*code, *expr_code);
1.229 misha 662: O(*code, OP::OP_WRITE_EXPR_RESULT);
1.214 paf 663: $$=N();
1.229 misha 664: OA(*$$, OP::OP_EXPR_CODE__STORE_PARAM, code);
1.214 paf 665: }
1.69 paf 666: };
1.94 paf 667: store_curly_param_part: maybe_codes {
1.206 paf 668: $$=N();
1.229 misha 669: OA(*$$, OP::OP_CURLY_CODE__STORE_PARAM, $1);
1.94 paf 670: };
1.120 paf 671: code_param_value:
1.261 moko 672: empty_value /* optimized [;...] case */
1.120 paf 673: | STRING /* optimized [STRING] case */
674: | constructor_code_value /* [something complex] */
675: ;
1.1 paf 676:
677: /* name */
678:
1.259 misha 679: name_expr_dive_code: name_expr_value | name_path name_expr_value { $$=$1; P(*$$, *$2); };
1.1 paf 680:
1.259 misha 681: name_path: name_step | name_path name_step { $$=$1; P(*$$, *$2); };
1.1 paf 682: name_step: name_advance1 '.';
683: name_advance1: name_expr_value {
1.177 paf 684: // we know that name_advance1 not called from ^xxx context
685: // so we'll not check for operator call possibility as we do in name_advance2
686:
1.1 paf 687: /* stack: context */
688: $$=$1; /* stack: context,name */
1.267 misha 689: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT__SPECIAL
690: O(*$$, is_special_element(*$$) ? OP::OP_GET_ELEMENT__SPECIAL : OP::OP_GET_ELEMENT);
691: #else
1.229 misha 692: O(*$$, OP::OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */
1.267 misha 693: #endif
1.1 paf 694: };
695: name_advance2: name_expr_value {
696: /* stack: context */
697: $$=$1; /* stack: context,name */
1.267 misha 698: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT__SPECIAL
699: O(*$$, is_special_element(*$$) ? OP::OP_GET_ELEMENT__SPECIAL : OP::OP_GET_ELEMENT);
700: #else
1.229 misha 701: O(*$$, OP::OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */
1.267 misha 702: #endif
1.1 paf 703: }
1.4 paf 704: | STRING BOGUS
1.1 paf 705: ;
706: name_expr_value:
1.4 paf 707: STRING /* subname_is_const */
1.1 paf 708: | name_expr_subvar_value /* $subname_is_var_value */
1.160 parser 709: | name_expr_with_subvar_value /* xxx$part_of_subname_is_var_value */
1.166 parser 710: | name_square_code_value /* [codes] */
1.1 paf 711: ;
712: name_expr_subvar_value: '$' subvar_ref_name_rdive {
713: $$=$2;
1.229 misha 714: O(*$$, OP::OP_GET_ELEMENT);
1.1 paf 715: };
1.4 paf 716: name_expr_with_subvar_value: STRING subvar_get_writes {
1.238 misha 717: YYSTYPE code;
1.183 paf 718: {
1.206 paf 719: change_string_literal_to_write_string_literal(*(code=$1));
720: P(*code, *$2);
1.183 paf 721: }
1.206 paf 722: $$=N();
1.229 misha 723: OA(*$$, OP::OP_STRING_POOL, code);
1.1 paf 724: };
1.212 paf 725: name_square_code_value: '[' {
726: // allow $result_or_other_variable[ letters here any time ]
727: *reinterpret_cast<bool*>(&$$)=PC.explicit_result; PC.explicit_result=false;
728: } codes {
1.213 paf 729: PC.explicit_result=*reinterpret_cast<bool*>(&$2);
1.212 paf 730: } ']' {
1.206 paf 731: $$=N();
1.267 misha 732: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT__SPECIAL
733: if(!maybe_append_simple_diving_code(*$$, *$3))
734: #endif
735: {
1.229 misha 736: OA(*$$, OP::OP_OBJECT_POOL, $3); /* stack: empty write context */
1.183 paf 737: /* some code that writes to that context */
738: /* context=pop; stack: context.value() */
1.267 misha 739: }
1.160 parser 740: };
1.154 parser 741: subvar_ref_name_rdive: STRING {
1.206 paf 742: $$=N();
1.229 misha 743: O(*$$, OP::OP_WITH_READ);
1.206 paf 744: P(*$$, *$1);
1.1 paf 745: };
1.259 misha 746: subvar_get_writes: subvar__get_write | subvar_get_writes subvar__get_write { $$=$1; P(*$$, *$2); };
1.1 paf 747: subvar__get_write: '$' subvar_ref_name_rdive {
748: $$=$2;
1.229 misha 749: O(*$$, OP::OP_GET_ELEMENT__WRITE);
1.42 paf 750: };
751:
1.154 parser 752: class_prefix:
753: class_static_prefix
754: | class_constructor_prefix
755: ;
1.155 parser 756: class_static_prefix: STRING ':' {
757: $$=$1; // stack: class name string
1.206 paf 758: if(*LA2S(*$$) == BASE_NAME) { // pseudo BASE class
759: if(VStateless_class* base=PC.cclass->base_class()) {
760: change_string_literal_value(*$$, base->name());
1.189 paf 761: } else {
762: strcpy(PC.error, "no base class declared");
763: YYERROR;
764: }
765: }
1.238 misha 766: // optimized OP_VALUE+origin+string+OP_GET_CLASS => OP_VALUE__GET_CLASS+origin+string
1.267 misha 767: change_first(*$$, OP::OP_VALUE, OP::OP_VALUE__GET_CLASS);
1.155 parser 768: };
769: class_constructor_prefix: class_static_prefix ':' {
1.154 parser 770: $$=$1;
1.180 paf 771: if(!PC.in_call_value) {
1.154 parser 772: strcpy(PC.error, ":: not allowed here");
773: YYERROR;
774: }
1.229 misha 775: O(*$$, OP::OP_PREPARE_TO_CONSTRUCT_OBJECT);
1.1 paf 776: };
777:
1.53 paf 778:
1.56 paf 779: /* expr */
1.53 paf 780:
1.214 paf 781: expr_value: expr;
1.56 paf 782: expr:
1.214 paf 783: double_or_STRING
1.216 paf 784: | true_value
785: | false_value
1.64 paf 786: | get_value
1.66 paf 787: | call_value
1.259 misha 788: | '"' string_inside_quotes_value '"' { $$ = $2; }
789: | '\'' string_inside_quotes_value '\'' { $$ = $2; }
1.60 paf 790: | '(' expr ')' { $$ = $2; }
791: /* stack: operand // stack: @operand */
1.259 misha 792: | '-' expr %prec NUNARY { $$=$2; O(*$$, OP::OP_NEG); }
793: | '+' expr %prec NUNARY { $$=$2; }
794: | '~' expr { $$=$2; O(*$$, OP::OP_INV); }
795: | '!' expr { $$=$2; O(*$$, OP::OP_NOT); }
796: | "def" expr { $$=$2; O(*$$, OP::OP_DEF); }
797: | "in" expr { $$=$2; O(*$$, OP::OP_IN); }
798: | "-f" expr { $$=$2; O(*$$, OP::OP_FEXISTS); }
799: | "-d" expr { $$=$2; O(*$$, OP::OP_DEXISTS); }
1.60 paf 800: /* stack: a,b // stack: a@b */
1.259 misha 801: | expr '-' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_SUB); }
802: | expr '+' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_ADD); }
803: | expr '*' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_MUL); }
804: | expr '/' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_DIV); }
805: | expr '%' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_MOD); }
806: | expr '\\' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_INTDIV); }
807: | expr "<<" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_SL); }
808: | expr ">>" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_SR); }
809: | expr '&' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_AND); }
810: | expr '|' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_OR); }
811: | expr "!|" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_XOR); }
812: | expr "&&" expr { $$=$1; OA(*$$, OP::OP_NESTED_CODE, $3); O(*$$, OP::OP_LOG_AND); }
813: | expr "||" expr { $$=$1; OA(*$$, OP::OP_NESTED_CODE, $3); O(*$$, OP::OP_LOG_OR); }
814: | expr "!||" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_LOG_XOR); }
815: | expr '<' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_LT); }
816: | expr '>' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_GT); }
817: | expr "<=" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_LE); }
818: | expr ">=" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_GE); }
819: | expr "==" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_EQ); }
820: | expr "!=" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_NE); }
821: | expr "lt" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_LT); }
822: | expr "gt" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_GT); }
823: | expr "le" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_LE); }
824: | expr "ge" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_GE); }
825: | expr "eq" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_EQ); }
826: | expr "ne" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_NE); }
827: | expr "is" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_IS); }
1.56 paf 828: ;
1.214 paf 829:
830: double_or_STRING: STRING {
1.238 misha 831: // optimized OP_STRING => OP_VALUE for doubles
1.214 paf 832: maybe_change_string_literal_to_double_literal(*($$=$1));
833: };
1.55 paf 834:
1.65 paf 835: string_inside_quotes_value: maybe_codes {
1.238 misha 836: #ifdef OPTIMIZE_BYTECODE_STRING_POOL
837: // it brakes ^if(" 09 "){...}
838: YYSTYPE code=$1;
839: $$=N();
1.267 misha 840: if(code->count()==3 && change_first(*code, OP::OP_STRING__WRITE, OP::OP_VALUE)){
1.238 misha 841: // optimized OP_STRING__WRITE+origin+value => OP_VALUE+origin+value without starting OP_STRING_POOL
842: P(*$$, *code);
843: } else {
844: OA(*$$, OP::OP_STRING_POOL, code); /* stack: empty write context */
845: }
846: #else
1.206 paf 847: $$=N();
1.229 misha 848: OA(*$$, OP::OP_STRING_POOL, $1); /* stack: empty write context */
1.238 misha 849: #endif
1.183 paf 850: /* some code that writes to that context */
851: /* context=pop; stack: context.get_string() */
1.53 paf 852: };
1.1 paf 853:
1.27 paf 854: /* basics */
1.1 paf 855:
1.81 paf 856: write_string: STRING {
1.238 misha 857: // optimized OP_STRING+OP_WRITE_VALUE => OP_STRING__WRITE
1.259 misha 858: change_string_literal_to_write_string_literal(*($$=$1));
1.54 paf 859: };
860:
1.261 moko 861: empty_value: /* empty */ { $$=VL(/*we know that we will not change it*/const_cast<VString*>(&vempty), 0, 0, 0); }
1.259 misha 862: true_value: "true" { $$ = VL(/*we know that we will not change it*/const_cast<VBool*>(&vtrue), 0, 0, 0); }
863: false_value: "false" { $$ = VL(/*we know that we will not change it*/const_cast<VBool*>(&vfalse), 0, 0, 0); }
1.216 paf 864:
1.259 misha 865: empty: /* empty */ { $$=N(); };
1.1 paf 866:
867: %%
1.105 paf 868: #endif
1.1 paf 869:
870: /*
871: 000$111(2222)00
872: 000$111{3333}00
1.9 paf 873: $,^: push,=0
1.1 paf 874: 1:( { break=pop
875: 2:( ) pop
876: 3:{ } pop
877:
878: 000^111(2222)4444{33333}4000
1.9 paf 879: $,^: push,=0
1.1 paf 880: 1:( { break=pop
881: 2:( )=4
882: 3:{ }=4
883: 4:[^({]=pop
884: */
885:
1.206 paf 886: inline void ungetc(Parse_control& pc, uint last_line_end_col) {
887: pc.source--;
888: if(pc.pos.col==0) {
889: --pc.pos.line; pc.pos.col=last_line_end_col;
890: } else
891: --pc.pos.col;
892:
893: }
894: static int yylex(YYSTYPE *lvalp, void *apc) {
895: register Parse_control& pc=*static_cast<Parse_control*>(apc);
896:
897: #define lexical_brackets_nestage pc.brackets_nestages[pc.ls_sp]
1.48 paf 898: #define RC {result=c; goto break2; }
1.1 paf 899:
1.206 paf 900: register int c;
901: int result;
1.1 paf 902:
1.206 paf 903: if(pc.pending_state) {
904: result=pc.pending_state;
905: pc.pending_state=0;
1.1 paf 906: return result;
907: }
908:
1.206 paf 909: const char *begin=pc.source;
910: Pos begin_pos=pc.pos;
1.91 paf 911: const char *end;
1.67 paf 912: int skip_analized=0;
1.50 paf 913: while(true) {
1.206 paf 914: c=*(end=(pc.source++));
915: // fprintf(stderr, "\nchar: %c %02X; nestage: %d, sp=%d", c, c, lexical_brackets_nestage, pc.sp);
1.1 paf 916:
1.208 paf 917: if(c=='\n')
1.206 paf 918: pc.pos_next_line();
1.208 paf 919: else
1.206 paf 920: pc.pos_next_c(c);
1.208 paf 921: // fprintf(stderr, "\nchar: %c file(%d:%d)", c, pc.pos.line, pc.pos.col);
1.73 paf 922:
1.208 paf 923: if(pc.pos.col==0+1 && c=='@') {
1.206 paf 924: if(pc.ls==LS_DEF_SPECIAL_BODY) {
1.175 paf 925: // @SPECIAL
926: // ...
927: // @<here =
1.206 paf 928: pop_LS(pc); // exiting from LS_DEF_SPECIAL_BODY state
1.175 paf 929: } // continuing checks
1.206 paf 930: if(pc.ls==LS_USER) {
931: push_LS(pc, LS_DEF_NAME);
1.171 parser 932: RC;
1.175 paf 933: } else // @ in first column inside some code [when could that be?]
1.171 parser 934: result=BAD_METHOD_DECL_START;
935: goto break2;
1.209 paf 936: }
937: if(c=='^') {
1.206 paf 938: if(pc.ls==LS_METHOD_AFTER) {
1.203 paf 939: // handle after-method situation
1.206 paf 940: pop_LS(pc);
1.203 paf 941: result=EON;
942: skip_analized=-1; // return to punctuation afterwards to assure it's literality
943: goto break2;
944: }
1.206 paf 945: switch(pc.ls) {
1.169 parser 946: case LS_EXPRESSION_VAR_NAME_WITH_COLON:
947: case LS_EXPRESSION_VAR_NAME_WITHOUT_COLON:
948: case LS_VAR_NAME_SIMPLE_WITH_COLON:
949: case LS_VAR_NAME_SIMPLE_WITHOUT_COLON:
950: case LS_VAR_NAME_CURLY:
951: case LS_METHOD_NAME:
1.194 paf 952: case LS_USER_COMMENT:
1.169 parser 953: case LS_DEF_COMMENT:
954: // no literals in names, please
955: break;
956: default:
1.206 paf 957: switch(*pc.source) {
1.165 parser 958: // ^escaping some punctuators
1.228 misha 959: case '^': case '$': case ';': case '@':
1.126 paf 960: case '(': case ')':
1.48 paf 961: case '[': case ']':
962: case '{': case '}':
1.172 parser 963: case '"': case ':':
1.40 paf 964: if(end!=begin) {
1.206 paf 965: if(!pc.string_start)
966: pc.string_start=begin_pos;
1.40 paf 967: // append piece till ^
1.206 paf 968: pc.string.append_strdup_know_length(begin, end-begin);
1.40 paf 969: }
1.63 paf 970: // reset piece 'begin' position & line
1.206 paf 971: begin=pc.source; // ->punctuation
972: begin_pos=pc.pos;
1.203 paf 973: // skip over _ after ^
1.206 paf 974: pc.source++; pc.pos.col++;
1.203 paf 975: // skip analysis = forced literal
976: continue;
1.114 paf 977:
978: // converting ^#HH into char(hex(HH))
979: case '#':
980: if(end!=begin) {
1.206 paf 981: if(!pc.string_start)
982: pc.string_start=begin_pos;
1.114 paf 983: // append piece till ^
1.206 paf 984: pc.string.append_strdup_know_length(begin, end-begin);
1.114 paf 985: }
986: // #HH ?
1.228 misha 987: if(pc.source[1] && isxdigit(pc.source[1]) && pc.source[2] && isxdigit(pc.source[2])) {
1.218 paf 988: char c=(char)(
1.206 paf 989: hex_value[(unsigned char)pc.source[1]]*0x10+
1.218 paf 990: hex_value[(unsigned char)pc.source[2]]);
1.206 paf 991: if(c==0) {
1.114 paf 992: result=BAD_HEX_LITERAL;
993: goto break2; // wrong hex value[no ^#00 chars allowed]: bail out
994: }
995: // append char(hex(HH))
1.206 paf 996: pc.string.append(c);
1.114 paf 997: // skip over ^#HH
1.206 paf 998: pc.source+=3;
999: pc.pos.col+=3;
1.114 paf 1000: // reset piece 'begin' position & line
1.206 paf 1001: begin=pc.source; // ->after ^#HH
1002: begin_pos=pc.pos;
1.203 paf 1003: // skip analysis = forced literal
1.114 paf 1004: continue;
1005: }
1.228 misha 1006: // just escaped char
1007: // reset piece 'begin' position & line
1008: begin=pc.source;
1009: begin_pos=pc.pos;
1010: // skip over _ after ^
1011: pc.source++; pc.pos.col++;
1012: // skip analysis = forced literal
1013: continue;
1.1 paf 1014: }
1.169 parser 1015: break;
1.203 paf 1016: }
1.169 parser 1017: }
1.113 paf 1018: // #comment start skipping
1.206 paf 1019: if(c=='#' && pc.pos.col==1) {
1.112 paf 1020: if(end!=begin) {
1.206 paf 1021: if(!pc.string_start)
1022: pc.string_start=begin_pos;
1.112 paf 1023: // append piece till #
1.206 paf 1024: pc.string.append_strdup_know_length(begin, end-begin);
1.112 paf 1025: }
1026: // fall into COMMENT lexical state [wait for \n]
1.206 paf 1027: push_LS(pc, LS_USER_COMMENT);
1.175 paf 1028: continue;
1.112 paf 1029: }
1.206 paf 1030: switch(pc.ls) {
1.10 paf 1031:
1032: // USER'S = NOT OURS
1.1 paf 1033: case LS_USER:
1.206 paf 1034: case LS_NAME_SQUARE_PART: // name.[here].xxx
1035: if(pc.trim_bof)
1.153 parser 1036: switch(c) {
1037: case '\n': case ' ': case '\t':
1.206 paf 1038: begin=pc.source;
1039: begin_pos=pc.pos;
1.152 parser 1040: continue; // skip it
1.153 parser 1041: default:
1.206 paf 1042: pc.trim_bof=false;
1.152 parser 1043: }
1.48 paf 1044: switch(c) {
1045: case '$':
1.206 paf 1046: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1047: RC;
1048: case '^':
1.206 paf 1049: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1050: RC;
1.166 parser 1051: case ']':
1.206 paf 1052: if(pc.ls==LS_NAME_SQUARE_PART)
1.166 parser 1053: if(--lexical_brackets_nestage==0) {// $name.[co<]?>de<]?>
1.206 paf 1054: pop_LS(pc); // $name.[co<]>de<]!>
1.166 parser 1055: RC;
1056: }
1.160 parser 1057: break;
1.166 parser 1058: case '[': // $name.[co<[>de]
1.206 paf 1059: if(pc.ls==LS_NAME_SQUARE_PART)
1.166 parser 1060: lexical_brackets_nestage++;
1.161 parser 1061: break;
1.112 paf 1062: }
1.209 paf 1063: if(pc.explicit_result && c)
1064: switch(c) {
1065: case '\n': case ' ': case '\t':
1066: begin=pc.source;
1067: begin_pos=pc.pos;
1068: continue; // skip it
1069: default:
1070: result=BAD_NONWHITESPACE_CHARACTER_IN_EXPLICIT_RESULT_MODE;
1071: goto break2;
1072: }
1.112 paf 1073: break;
1074:
1075: // #COMMENT
1.194 paf 1076: case LS_USER_COMMENT:
1.112 paf 1077: if(c=='\n') {
1078: // skip comment
1.206 paf 1079: begin=pc.source;
1080: begin_pos=pc.pos;
1.112 paf 1081:
1.206 paf 1082: pop_LS(pc);
1.112 paf 1083: continue;
1.1 paf 1084: }
1.48 paf 1085: break;
1086:
1087: // STRING IN EXPRESSION
1.145 parser 1088: case LS_EXPRESSION_STRING_QUOTED:
1089: case LS_EXPRESSION_STRING_APOSTROFED:
1.48 paf 1090: switch(c) {
1091: case '"':
1.145 parser 1092: case '\'':
1093: if(
1.270 moko 1094: (pc.ls == LS_EXPRESSION_STRING_QUOTED && c=='"') ||
1095: (pc.ls == LS_EXPRESSION_STRING_APOSTROFED && c=='\'') ) {
1.206 paf 1096: pop_LS(pc); //"abc". | 'abc'.
1.145 parser 1097: RC;
1098: }
1099: break;
1.48 paf 1100: case '$':
1.206 paf 1101: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1102: RC;
1103: case '^':
1.206 paf 1104: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1105: RC;
1.10 paf 1106: }
1107: break;
1108:
1109: // METHOD DEFINITION
1110: case LS_DEF_NAME:
1.48 paf 1111: switch(c) {
1112: case '[':
1.206 paf 1113: pc.ls=LS_DEF_PARAMS;
1.48 paf 1114: RC;
1115: case '\n':
1.206 paf 1116: pc.ls=LS_DEF_SPECIAL_BODY;
1.48 paf 1117: RC;
1.10 paf 1118: }
1119: break;
1.48 paf 1120:
1.10 paf 1121: case LS_DEF_PARAMS:
1.48 paf 1122: switch(c) {
1.192 paf 1123: case '$': // common error
1.193 paf 1124: result=BAD_METHOD_PARAMETER_NAME_CHARACTER;
1125: goto break2;
1.48 paf 1126: case ';':
1127: RC;
1128: case ']':
1.206 paf 1129: pc.ls=*pc.source=='['?LS_DEF_LOCALS:LS_DEF_COMMENT;
1.48 paf 1130: RC;
1.49 paf 1131: case '\n': // wrong. bailing out
1.206 paf 1132: pop_LS(pc);
1.48 paf 1133: RC;
1.10 paf 1134: }
1135: break;
1.48 paf 1136:
1.10 paf 1137: case LS_DEF_LOCALS:
1.48 paf 1138: switch(c) {
1139: case '[':
1140: case ';':
1141: RC;
1142: case ']':
1.206 paf 1143: pc.ls=LS_DEF_COMMENT;
1.48 paf 1144: RC;
1145: case '\n': // wrong. bailing out
1.206 paf 1146: pop_LS(pc);
1.48 paf 1147: RC;
1.10 paf 1148: }
1149: break;
1.48 paf 1150:
1.10 paf 1151: case LS_DEF_COMMENT:
1152: if(c=='\n') {
1.206 paf 1153: pop_LS(pc);
1.48 paf 1154: RC;
1.37 paf 1155: }
1156: break;
1157:
1.48 paf 1158: case LS_DEF_SPECIAL_BODY:
1.175 paf 1159: if(c=='\n')
1.48 paf 1160: RC;
1161: break;
1162:
1163: // (EXPRESSION)
1.69 paf 1164: case LS_VAR_ROUND:
1165: case LS_METHOD_ROUND:
1.48 paf 1166: switch(c) {
1167: case ')':
1.270 moko 1168: if(--lexical_brackets_nestage==0) {
1.206 paf 1169: if(pc.ls==LS_METHOD_ROUND) // method round param ended
1170: pc.ls=LS_METHOD_AFTER; // look for method end
1171: else // pc.ls==LS_VAR_ROUND // variable constructor ended
1172: pop_LS(pc); // return to normal life
1.270 moko 1173: }
1.48 paf 1174: RC;
1.194 paf 1175: case '#': // comment start skipping
1176: if(end!=begin) {
1.206 paf 1177: if(!pc.string_start)
1178: pc.string_start=begin_pos;
1.194 paf 1179: // append piece till #
1.206 paf 1180: pc.string.append_strdup_know_length(begin, end-begin);
1.194 paf 1181: }
1182: // fall into COMMENT lexical state [wait for \n]
1.206 paf 1183: push_LS(pc, LS_EXPRESSION_COMMENT);
1.194 paf 1184: lexical_brackets_nestage=1;
1185: continue;
1.48 paf 1186: case '$':
1.206 paf 1187: push_LS(pc, LS_EXPRESSION_VAR_NAME_WITH_COLON);
1.48 paf 1188: RC;
1189: case '^':
1.206 paf 1190: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1191: RC;
1192: case '(':
1193: lexical_brackets_nestage++;
1194: RC;
1.67 paf 1195: case '-':
1.206 paf 1196: switch(*pc.source) {
1.127 paf 1197: case 'f': // -f
1.67 paf 1198: skip_analized=1;
1199: result=FEXISTS;
1.127 paf 1200: goto break2;
1201: case 'd': // -d
1202: skip_analized=1;
1203: result=DEXISTS;
1204: goto break2;
1.191 paf 1205: default: // minus
1.67 paf 1206: result=c;
1.127 paf 1207: goto break2;
1208: }
1.67 paf 1209: goto break2;
1.173 paf 1210: case '+': case '*': case '/': case '%': case '\\':
1.58 paf 1211: case '~':
1.48 paf 1212: case ';':
1213: RC;
1.193 paf 1214: case '&': case '|':
1.206 paf 1215: if(*pc.source==c) { // && ||
1.193 paf 1216: result=c=='&'?LAND:LOR;
1.67 paf 1217: skip_analized=1;
1.58 paf 1218: } else
1219: result=c;
1220: goto break2;
1.193 paf 1221: case '!':
1.206 paf 1222: switch(pc.source[0]) {
1.193 paf 1223: case '|': // !| !||
1224: skip_analized=1;
1.206 paf 1225: if(pc.source[1]=='|') {
1.193 paf 1226: skip_analized++;
1227: result=LXOR;
1228: } else
1229: result=NXOR;
1230: goto break2;
1231: case '=': // !=
1232: skip_analized=1;
1233: result=NNE;
1234: goto break2;
1235: }
1236: RC;
1.195 paf 1237:
1238: case '<': // <<, <=, <
1.206 paf 1239: switch(*pc.source) {
1.195 paf 1240: case '<': // <[<]
1241: skip_analized=1; result=NSL; break;
1242: case '=': // <[=]
1243: skip_analized=1; result=NLE; break;
1244: default: // <[]
1245: result=c; break;
1246: }
1247: goto break2;
1248: case '>': // >>, >=, >
1.206 paf 1249: switch(*pc.source) {
1.195 paf 1250: case '>': // >[>]
1251: skip_analized=1; result=NSR; break;
1252: case '=': // >[=]
1253: skip_analized=1; result=NGE; break;
1254: default: // >[]
1255: result=c; break;
1256: }
1257: goto break2;
1258: case '=': // ==
1.206 paf 1259: switch(*pc.source) {
1.195 paf 1260: case '=': // =[=]
1261: skip_analized=1; result=NEQ; break;
1262: default: // =[]
1263: result=c; break; // not used now
1264: }
1.58 paf 1265: goto break2;
1.195 paf 1266:
1.48 paf 1267: case '"':
1.206 paf 1268: push_LS(pc, LS_EXPRESSION_STRING_QUOTED);
1.145 parser 1269: RC;
1270: case '\'':
1.206 paf 1271: push_LS(pc, LS_EXPRESSION_STRING_APOSTROFED);
1.48 paf 1272: RC;
1.50 paf 1273: case 'l': case 'g': case 'e': case 'n':
1.51 paf 1274: if(end==begin) // right after whitespace
1.206 paf 1275: if(isspace(pc.source[1])) {
1276: switch(*pc.source) {
1.117 paf 1277: // case '?': // ok [and bad cases, yacc would bark at them]
1278: case 't': // lt gt [et nt]
1279: result=c=='l'?SLT:c=='g'?SGT:BAD_STRING_COMPARISON_OPERATOR;
1280: skip_analized=1;
1281: goto break2;
1282: case 'e': // le ge ne [ee]
1283: result=c=='l'?SLE:c=='g'?SGE:c=='n'?SNE:BAD_STRING_COMPARISON_OPERATOR;
1284: skip_analized=1;
1285: goto break2;
1286: case 'q': // eq [lq gq nq]
1287: result=c=='e'?SEQ:BAD_STRING_COMPARISON_OPERATOR;
1288: skip_analized=1;
1289: goto break2;
1290: }
1.67 paf 1291: }
1292: break;
1293: case 'i':
1294: if(end==begin) // right after whitespace
1.206 paf 1295: if(isspace(pc.source[1])) {
1296: switch(pc.source[0]) {
1.117 paf 1297: case 'n': // in
1.95 paf 1298: skip_analized=1;
1299: result=IN;
1300: goto break2;
1.117 paf 1301: case 's': // is
1.95 paf 1302: skip_analized=1;
1303: result=IS;
1304: goto break2;
1305: }
1.67 paf 1306: }
1307: break;
1308: case 'd':
1309: if(end==begin) // right after whitespace
1.206 paf 1310: if(pc.source[0]=='e' && pc.source[1]=='f') { // def
1.225 misha 1311: switch(pc.source[2]){
1312: case ' ': case '\t': case '\n': case '"': case '\'': case '^': case '$': // non-quoted string without whitespace after 'def' is not allowed
1313: skip_analized=2;
1314: result=DEF;
1315: goto break2;
1316: }
1317: // error: incorrect char after 'def'
1.50 paf 1318: }
1.48 paf 1319: break;
1.216 paf 1320: case 't':
1321: if(end==begin) // right after whitespace
1.225 misha 1322: if(pc.source[0]=='r' && pc.source[1]=='u' && pc.source[2]=='e') { // true
1.216 paf 1323: skip_analized=3;
1324: result=LITERAL_TRUE;
1325: goto break2;
1326: }
1327: break;
1328: case 'f':
1329: if(end==begin) // right after whitespace
1.225 misha 1330: if(pc.source[0]=='a' && pc.source[1]=='l' && pc.source[2]=='s' && pc.source[3]=='e') { // false
1.216 paf 1331: skip_analized=4;
1332: result=LITERAL_FALSE;
1333: goto break2;
1334: }
1335: break;
1.48 paf 1336: case ' ': case '\t': case '\n':
1.63 paf 1337: if(end!=begin) { // there were a string after previous operator?
1338: result=0; // return that string
1339: goto break2;
1.48 paf 1340: }
1.63 paf 1341: // that's a leading|traling space or after-operator-space
1342: // ignoring it
1343: // reset piece 'begin' position & line
1.206 paf 1344: begin=pc.source; // after whitespace char
1345: begin_pos=pc.pos;
1.48 paf 1346: continue;
1.1 paf 1347: }
1348: break;
1.194 paf 1349: case LS_EXPRESSION_COMMENT:
1350: if(c=='(')
1351: lexical_brackets_nestage++;
1352:
1.206 paf 1353: switch(*pc.source) {
1.194 paf 1354: case '\n': case ')':
1.206 paf 1355: if(*pc.source==')')
1.194 paf 1356: if(--lexical_brackets_nestage!=0)
1357: continue;
1358:
1359: // skip comment
1.206 paf 1360: begin=pc.source;
1361: begin_pos=pc.pos;
1.194 paf 1362:
1.206 paf 1363: pop_LS(pc);
1.194 paf 1364: continue;
1365: }
1366: break;
1.1 paf 1367:
1.10 paf 1368: // VARIABLE GET/PUT/WITH
1.166 parser 1369: case LS_VAR_NAME_SIMPLE_WITH_COLON:
1370: case LS_VAR_NAME_SIMPLE_WITHOUT_COLON:
1371: case LS_EXPRESSION_VAR_NAME_WITH_COLON:
1372: case LS_EXPRESSION_VAR_NAME_WITHOUT_COLON:
1373: if(
1.206 paf 1374: pc.ls==LS_EXPRESSION_VAR_NAME_WITH_COLON ||
1375: pc.ls==LS_EXPRESSION_VAR_NAME_WITHOUT_COLON) {
1.181 paf 1376: // name in expr ends also before
1.48 paf 1377: switch(c) {
1.181 paf 1378: // expression minus
1.92 paf 1379: case '-':
1.181 paf 1380: // expression integer division
1381: case '\\':
1.206 paf 1382: pop_LS(pc);
1383: pc.ungetc();
1.48 paf 1384: result=EON;
1385: goto break2;
1386: }
1387: }
1.166 parser 1388: if(
1.206 paf 1389: pc.ls==LS_VAR_NAME_SIMPLE_WITHOUT_COLON ||
1390: pc.ls==LS_EXPRESSION_VAR_NAME_WITHOUT_COLON) {
1.142 parser 1391: // name already has ':', stop before next
1392: switch(c) {
1393: case ':':
1.206 paf 1394: pop_LS(pc);
1395: pc.ungetc();
1.142 parser 1396: result=EON;
1397: goto break2;
1398: }
1399: }
1.48 paf 1400: switch(c) {
1401: case 0:
1402: case ' ': case '\t': case '\n':
1403: case ';':
1.126 paf 1404: case ']': case '}': case ')':
1405: case '"': case '\'':
1.139 parser 1406: case '<': case '>': // these stand for HTML brackets AND expression binary ops
1.253 misha 1407: case '+': case '*': case '/': case '\\': case '%':
1.92 paf 1408: case '&': case '|':
1409: case '=': case '!':
1.99 paf 1410: // common delimiters
1.190 paf 1411: case ',': case '?': case '#':
1.220 paf 1412: // mysql column separators
1413: case '`':
1.139 parser 1414: // before call
1415: case '^':
1.206 paf 1416: pop_LS(pc);
1417: pc.ungetc();
1.13 paf 1418: result=EON;
1.1 paf 1419: goto break2;
1.48 paf 1420: case '[':
1.162 parser 1421: // $name.<[>code]
1.206 paf 1422: if(pc.pos.col>1/*not first column*/ && (
1.163 parser 1423: end[-1]=='$'/*was start of get*/ ||
1424: end[-1]==':'/*was class name delim */ ||
1425: end[-1]=='.'/*was name delim */
1.162 parser 1426: )) {
1.206 paf 1427: push_LS(pc, LS_NAME_SQUARE_PART);
1.162 parser 1428: lexical_brackets_nestage=1;
1429: RC;
1430: }
1.206 paf 1431: pc.ls=LS_VAR_SQUARE;
1.1 paf 1432: lexical_brackets_nestage=1;
1.48 paf 1433: RC;
1434: case '{':
1435: if(begin==end) { // ${name}, no need of EON, switching LS
1.206 paf 1436: pc.ls=LS_VAR_NAME_CURLY;
1.48 paf 1437: } else {
1.206 paf 1438: pc.ls=LS_VAR_CURLY;
1.48 paf 1439: lexical_brackets_nestage=1;
1440: }
1.69 paf 1441:
1.48 paf 1442: RC;
1443: case '(':
1.206 paf 1444: pc.ls=LS_VAR_ROUND;
1.1 paf 1445: lexical_brackets_nestage=1;
1.48 paf 1446: RC;
1447: case '.': // name part delim
1448: case '$': // name part subvar
1.160 parser 1449: case ':': // class<:>name
1.166 parser 1450: // go to _WITHOUT_COLON state variant...
1.206 paf 1451: if(pc.ls==LS_VAR_NAME_SIMPLE_WITH_COLON)
1452: pc.ls=LS_VAR_NAME_SIMPLE_WITHOUT_COLON;
1453: else if(pc.ls==LS_EXPRESSION_VAR_NAME_WITH_COLON)
1454: pc.ls=LS_EXPRESSION_VAR_NAME_WITHOUT_COLON;
1.166 parser 1455: // ...stop before next ':'
1.48 paf 1456: RC;
1.1 paf 1457: }
1458: break;
1.48 paf 1459:
1.1 paf 1460: case LS_VAR_NAME_CURLY:
1.48 paf 1461: switch(c) {
1.162 parser 1462: case '[':
1.166 parser 1463: // ${name.<[>code]}
1.206 paf 1464: push_LS(pc, LS_NAME_SQUARE_PART);
1.160 parser 1465: lexical_brackets_nestage=1;
1466: RC;
1.48 paf 1467: case '}': // ${name} finished, restoring LS
1.206 paf 1468: pop_LS(pc);
1.48 paf 1469: RC;
1470: case '.': // name part delim
1471: case '$': // name part subvar
1472: case ':': // ':name' or 'class:name'
1473: RC;
1.1 paf 1474: }
1475: break;
1.48 paf 1476:
1477: case LS_VAR_SQUARE:
1478: switch(c) {
1479: case '$':
1.206 paf 1480: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1481: RC;
1482: case '^':
1.206 paf 1483: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1484: RC;
1485: case ']':
1.1 paf 1486: if(--lexical_brackets_nestage==0) {
1.206 paf 1487: pop_LS(pc);
1.48 paf 1488: RC;
1.1 paf 1489: }
1.48 paf 1490: break;
1491: case ';': // operator_or_fmt;value delim
1492: RC;
1493: case '[':
1494: lexical_brackets_nestage++;
1495: break;
1.1 paf 1496: }
1497: break;
1.48 paf 1498:
1.1 paf 1499: case LS_VAR_CURLY:
1.48 paf 1500: switch(c) {
1501: case '$':
1.206 paf 1502: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1503: RC;
1504: case '^':
1.206 paf 1505: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1506: RC;
1507: case '}':
1.1 paf 1508: if(--lexical_brackets_nestage==0) {
1.206 paf 1509: pop_LS(pc);
1.48 paf 1510: RC;
1.1 paf 1511: }
1.48 paf 1512: break;
1513: case '{':
1.1 paf 1514: lexical_brackets_nestage++;
1.48 paf 1515: break;
1516: }
1.1 paf 1517: break;
1518:
1.10 paf 1519: // METHOD CALL
1.1 paf 1520: case LS_METHOD_NAME:
1.48 paf 1521: switch(c) {
1522: case '[':
1.166 parser 1523: // ^name.<[>code].xxx
1.206 paf 1524: if(pc.pos.col>1/*not first column*/ && (
1.163 parser 1525: end[-1]=='^'/*was start of call*/ || // never, ^[ is literal...
1526: end[-1]==':'/*was class name delim */ ||
1527: end[-1]=='.'/*was name delim */
1.162 parser 1528: )) {
1.206 paf 1529: push_LS(pc, LS_NAME_SQUARE_PART);
1.162 parser 1530: lexical_brackets_nestage=1;
1531: RC;
1532: }
1.206 paf 1533: pc.ls=LS_METHOD_SQUARE;
1.1 paf 1534: lexical_brackets_nestage=1;
1.48 paf 1535: RC;
1536: case '{':
1.206 paf 1537: pc.ls=LS_METHOD_CURLY;
1.1 paf 1538: lexical_brackets_nestage=1;
1.48 paf 1539: RC;
1.69 paf 1540: case '(':
1.206 paf 1541: pc.ls=LS_METHOD_ROUND;
1.69 paf 1542: lexical_brackets_nestage=1;
1543: RC;
1.48 paf 1544: case '.': // name part delim
1545: case '$': // name part subvar
1546: case ':': // ':name' or 'class:name'
1.170 parser 1547: case '^': // ^abc^xxx wrong. bailing out
1548: case ']': case '}': case ')': // ^abc]}) wrong. bailing out
1.207 paf 1549: case ' ': // ^if ( wrong. bailing out
1.48 paf 1550: RC;
1.1 paf 1551: }
1552: break;
1.48 paf 1553:
1554: case LS_METHOD_SQUARE:
1555: switch(c) {
1556: case '$':
1.206 paf 1557: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1558: RC;
1559: case '^':
1.206 paf 1560: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1561: RC;
1562: case ';': // param delim
1563: RC;
1564: case ']':
1.1 paf 1565: if(--lexical_brackets_nestage==0) {
1.206 paf 1566: pc.ls=LS_METHOD_AFTER;
1.48 paf 1567: RC;
1.1 paf 1568: }
1.48 paf 1569: break;
1570: case '[':
1.1 paf 1571: lexical_brackets_nestage++;
1.48 paf 1572: break;
1573: }
1.1 paf 1574: break;
1.48 paf 1575:
1.1 paf 1576: case LS_METHOD_CURLY:
1.48 paf 1577: switch(c) {
1578: case '$':
1.206 paf 1579: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1580: RC;
1581: case '^':
1.206 paf 1582: push_LS(pc, LS_METHOD_NAME);
1.94 paf 1583: RC;
1584: case ';': // param delim
1.48 paf 1585: RC;
1586: case '}':
1.1 paf 1587: if(--lexical_brackets_nestage==0) {
1.206 paf 1588: pc.ls=LS_METHOD_AFTER;
1.48 paf 1589: RC;
1.1 paf 1590: }
1.48 paf 1591: break;
1592: case '{':
1.1 paf 1593: lexical_brackets_nestage++;
1.48 paf 1594: break;
1595: }
1.209 paf 1596: if(pc.explicit_result && c)
1597: switch(c) {
1598: case '\n': case ' ': case '\t':
1599: begin=pc.source;
1600: begin_pos=pc.pos;
1601: continue; // skip it
1602: default:
1603: result=BAD_NONWHITESPACE_CHARACTER_IN_EXPLICIT_RESULT_MODE;
1604: goto break2;
1605: }
1.1 paf 1606: break;
1.48 paf 1607:
1.1 paf 1608: case LS_METHOD_AFTER:
1.69 paf 1609: if(c=='[') {/* ][ }[ )[ */
1.206 paf 1610: pc.ls=LS_METHOD_SQUARE;
1.1 paf 1611: lexical_brackets_nestage=1;
1.48 paf 1612: RC;
1.1 paf 1613: }
1.69 paf 1614: if(c=='{') {/* ]{ }{ ){ */
1.206 paf 1615: pc.ls=LS_METHOD_CURLY;
1.69 paf 1616: lexical_brackets_nestage=1;
1617: RC;
1618: }
1619: if(c=='(') {/* ]( }( )( */
1.206 paf 1620: pc.ls=LS_METHOD_ROUND;
1.1 paf 1621: lexical_brackets_nestage=1;
1.48 paf 1622: RC;
1.1 paf 1623: }
1.206 paf 1624: pop_LS(pc);
1625: pc.ungetc();
1.13 paf 1626: result=EON;
1.1 paf 1627: goto break2;
1628: }
1.9 paf 1629: if(c==0) {
1.1 paf 1630: result=-1;
1631: break;
1632: }
1633: }
1634:
1635: break2:
1.59 paf 1636: if(end!=begin) { // there is last piece?
1.258 misha 1637: if(c=='@' || c==0) // we are before LS_DEF_NAME or EOF?
1638: while(end!=begin && end[-1]=='\n') // trim all empty lines before LS_DEF_NAME and EOF
1.137 parser 1639: end--;
1.206 paf 1640: if(end!=begin && pc.ls!=LS_USER_COMMENT) { // last piece still alive and not comment?
1641: if(!pc.string_start)
1642: pc.string_start=begin_pos;
1.59 paf 1643: // append it
1.206 paf 1644: pc.string.append_strdup_know_length(begin, end-begin);
1.30 paf 1645: }
1.59 paf 1646: }
1.206 paf 1647: if(!pc.string.is_empty()) { // something accumulated?
1648: // create STRING value: array of OP_VALUE+origin+vstring
1649: *lvalp=VL(
1650: new VString(*new String(pc.string, String::L_CLEAN)),
1651: pc.file_no, pc.string_start.line, pc.string_start.col);
1.10 paf 1652: // new pieces storage
1.206 paf 1653: pc.string.clear();
1654: pc.string_start.clear();
1.58 paf 1655: // make current result be pending for next call, return STRING for now
1.206 paf 1656: pc.pending_state=result; result=STRING;
1.58 paf 1657: }
1.67 paf 1658: if(skip_analized) {
1.206 paf 1659: pc.source+=skip_analized; pc.pos.col+=skip_analized;
1.1 paf 1660: }
1.58 paf 1661: return result;
1.1 paf 1662: }
1663:
1.264 moko 1664: static int real_yyerror(Parse_control *pc, const char *s) { // Called by yyparse on error
1.114 paf 1665: strncpy(PC.error, s, MAX_STRING);
1.1 paf 1666: return 1;
1.110 paf 1667: }
1.1 paf 1668:
1.110 paf 1669: static void yyprint(FILE *file, int type, YYSTYPE value) {
1670: if(type==STRING)
1.206 paf 1671: fprintf(file, " \"%s\"", LA2S(*value)->cstr());
1.110 paf 1672: }
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