Annotation of parser3/src/main/compile.y, revision 1.238
1.168 parser 1: %{
1.105 paf 2: /** @file
1.106 paf 3: Parser: compiler(lexical parser and grammar).
4:
1.215 paf 5: Copyright (c) 2001-2005 ArtLebedev Group (http://www.artlebedev.com)
1.168 parser 6: Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf)
1.217 paf 7:
1.238 ! misha 8: $Id: compile.y,v 1.237 2009-05-09 10:45:43 misha Exp $
1.88 paf 9: */
10:
1.106 paf 11: /**
12: @todo parser4:
13: - cache compiled code from request to request. to do that...
14: -#: make method definitions, @CLASS, @BASE, @USE instructions,
1.88 paf 15: which would be executed afterwards, and actions
16: now performed at compile time would be delayed to run time.
1.106 paf 17: -#: make cache expiration on time and on disk-change of class source
18: -#: in apache use subpools for compiled class storage
19: -#: in iis make up specialized Pool object for that
1.24 paf 20: */
21:
1.206 paf 22: #define YYSTYPE ArrayOperation*
1.9 paf 23: #define YYPARSE_PARAM pc
24: #define YYLEX_PARAM pc
25: #define YYDEBUG 1
1.106 paf 26: #define YYERROR_VERBOSE 1
1.206 paf 27: #define yyerror(msg) real_yyerror((Parse_control *)pc, msg)
1.9 paf 28: #define YYPRINT(file, type, value) yyprint(file, type, value)
1.1 paf 29:
1.206 paf 30: // includes
31:
1.1 paf 32: #include "compile_tools.h"
1.8 paf 33: #include "pa_value.h"
1.12 paf 34: #include "pa_request.h"
1.39 paf 35: #include "pa_vobject.h"
1.52 paf 36: #include "pa_vdouble.h"
1.98 paf 37: #include "pa_globals.h"
1.141 parser 38: #include "pa_vvoid.h"
1.200 paf 39: #include "pa_vmethod_frame.h"
1.39 paf 40:
1.206 paf 41: // defines
42:
1.97 paf 43: #define USE_CONTROL_METHOD_NAME "USE"
1.226 misha 44: #define OPTIONS_CONTROL_METHOD_NAME "OPTIONS"
45: #define OPTION_ALL_VARS_LOCAL_NAME "locals"
1.230 misha 46: #define OPTION_PARTIAL_CLASS "partial"
1.238 ! misha 47: #define REM_OPERATOR_NAME "rem"
1.1 paf 48:
1.206 paf 49: // forwards
50:
51: static int real_yyerror(Parse_control* pc, char* s);
52: static void yyprint(FILE* file, int type, YYSTYPE value);
53: static int yylex(YYSTYPE* lvalp, void* pc);
1.1 paf 54:
1.216 paf 55: static const VBool vfalse(false);
56: static const VBool vtrue(true);
57: static const VVoid vvoid;
58:
1.8 paf 59: // local convinient inplace typecast & var
1.205 paf 60: #undef PC
1.206 paf 61: #define PC (*(Parse_control *)pc)
62: #undef POOL
1.114 paf 63: #define POOL (*PC.pool)
1.107 paf 64: #ifndef DOXYGEN
1.1 paf 65: %}
66:
67: %pure_parser
68:
1.13 paf 69: %token EON
1.4 paf 70: %token STRING
1.1 paf 71: %token BOGUS
1.55 paf 72:
1.58 paf 73: %token BAD_STRING_COMPARISON_OPERATOR
1.114 paf 74: %token BAD_HEX_LITERAL
1.171 parser 75: %token BAD_METHOD_DECL_START
1.193 paf 76: %token BAD_METHOD_PARAMETER_NAME_CHARACTER
1.209 paf 77: %token BAD_NONWHITESPACE_CHARACTER_IN_EXPLICIT_RESULT_MODE
1.58 paf 78:
1.59 paf 79: %token LAND "&&"
1.58 paf 80: %token LOR "||"
1.193 paf 81: %token LXOR "!||"
82: %token NXOR "!|"
1.58 paf 83:
84: %token NLE "<="
85: %token NGE ">="
86: %token NEQ "=="
87: %token NNE "!="
1.195 paf 88: %token NSL "<<"
89: %token NSR ">>"
1.58 paf 90:
91: %token SLT "lt"
92: %token SGT "gt"
93: %token SLE "le"
94: %token SGE "ge"
95: %token SEQ "eq"
96: %token SNE "ne"
97:
1.67 paf 98: %token DEF "def"
99: %token IN "in"
100: %token FEXISTS "-f"
1.127 paf 101: %token DEXISTS "-d"
1.95 paf 102: %token IS "is"
1.67 paf 103:
1.216 paf 104: %token LITERAL_TRUE "true"
105: %token LITERAL_FALSE "false"
106:
1.57 paf 107: /* logical */
1.193 paf 108: %left "!||"
1.57 paf 109: %left "||"
110: %left "&&"
1.131 paf 111: %left '<' '>' "<=" ">=" "lt" "gt" "le" "ge"
112: %left "==" "!=" "eq" "ne"
113: %left "is" "def" "in" "-f" "-d"
1.57 paf 114:
115: /* bitwise */
1.193 paf 116: %left "!|"
1.131 paf 117: %left '|'
118: %left '&'
1.202 paf 119: %left "<<" ">>"
1.57 paf 120:
1.56 paf 121: /* numerical */
1.202 paf 122: %left '+' '-'
123: %left '*' '/' '\\' '%'
124: %left NUNARY /* unary - + */
125:
126: /* out-of-group */
127: %left '~' /* bitwise */
128: %left '!' /* logical */
1.1 paf 129:
130: %%
1.195 paf 131: all:
1.10 paf 132: one_big_piece {
1.206 paf 133: Method& method=*new Method(Method::CT_ANY,
1.81 paf 134: 0, 0, /*min, max numbered_params_count*/
1.75 paf 135: 0/*param_names*/, 0/*local_names*/,
136: $1/*parser_code*/, 0/*native_code*/);
1.206 paf 137: PC.cclass->add_method(PC.alias_method(main_method_name), method);
1.10 paf 138: }
139: | methods;
140:
141: methods: method | methods method;
142: one_big_piece: maybe_codes;
143:
1.34 paf 144: method: control_method | code_method;
145:
146: control_method: '@' STRING '\n'
1.132 paf 147: maybe_control_strings {
1.206 paf 148: const String& command=*LA2S(*$2);
1.34 paf 149: YYSTYPE strings_code=$4;
1.206 paf 150: if(strings_code->count()<1*OPERATIONS_PER_OPVALUE) {
1.114 paf 151: strcpy(PC.error, "@");
152: strcat(PC.error, command.cstr());
153: strcat(PC.error, " is empty");
1.37 paf 154: YYERROR;
155: }
1.74 paf 156: if(command==CLASS_NAME) {
1.206 paf 157: if(strings_code->count()==1*OPERATIONS_PER_OPVALUE) {
1.73 paf 158: // new class' name
1.206 paf 159: const String& name=*LA2S(*strings_code);
1.73 paf 160: // creating the class
1.206 paf 161: VStateless_class* cclass=new VClass;
1.226 misha 162: PC.cclass_new=cclass;
163: PC.cclass_new->set_name(name);
1.73 paf 164: } else {
1.206 paf 165: strcpy(PC.error, "@"CLASS_NAME" must contain only one line with class name (contains more then one)");
1.34 paf 166: YYERROR;
167: }
1.130 paf 168: } else if(command==USE_CONTROL_METHOD_NAME) {
1.206 paf 169: for(size_t i=0; i<strings_code->count(); i+=OPERATIONS_PER_OPVALUE)
170: PC.request.use_file(PC.request.main_class, *LA2S(*strings_code, i));
1.130 paf 171: } else if(command==BASE_NAME) {
1.226 misha 172: if(PC.append){
173: strcpy(PC.error, "can't set base while appending methods to class '");
174: strncat(PC.error, PC.cclass->name().cstr(), MAX_STRING/2);
175: strcat(PC.error, "'");
176: YYERROR;
177: }
178: PC.class_add();
1.188 paf 179: if(PC.cclass->base_class()) { // already changed from default?
1.130 paf 180: strcpy(PC.error, "class already have a base '");
1.226 misha 181: strncat(PC.error, PC.cclass->base_class()->name().cstr(), MAX_STRING/2);
1.130 paf 182: strcat(PC.error, "'");
183: YYERROR;
184: }
1.206 paf 185: if(strings_code->count()==1*OPERATIONS_PER_OPVALUE) {
186: const String& base_name=*LA2S(*strings_code);
187: if(Value* base_class_value=PC.request.classes().get(base_name)) {
188: // @CLASS == @BASE sanity check
189: if(VStateless_class *base_class=base_class_value->get_class()) {
190: if(PC.cclass==base_class) {
191: strcpy(PC.error, "@"CLASS_NAME" equals @"BASE_NAME);
192: YYERROR;
193: }
194: PC.cclass->get_class()->set_base(base_class);
195: } else { // they asked to derive from a class without methods ['env' & co]
196: strcpy(PC.error, base_name.cstr());
197: strcat(PC.error, ": you can not derive from this class in @"BASE_NAME);
198: YYERROR;
199: }
200: } else {
1.130 paf 201: strcpy(PC.error, base_name.cstr());
202: strcat(PC.error, ": undefined class in @"BASE_NAME);
1.73 paf 203: YYERROR;
204: }
1.34 paf 205: } else {
1.130 paf 206: strcpy(PC.error, "@"BASE_NAME" must contain sole name");
1.34 paf 207: YYERROR;
208: }
1.223 misha 209: } else if(command==OPTIONS_CONTROL_METHOD_NAME) {
210: for(size_t i=0; i<strings_code->count(); i+=OPERATIONS_PER_OPVALUE) {
211: const String& option=*LA2S(*strings_code, i);
1.226 misha 212: if(option==OPTION_ALL_VARS_LOCAL_NAME){
213: PC.set_all_vars_local();
1.230 misha 214: } else if(option==OPTION_PARTIAL_CLASS){
215: if(PC.cclass_new){
216: if(VStateless_class* existed=PC.get_existed_class(PC.cclass_new)){
217: if(!PC.reuse_existed_class(existed)){
218: strcpy(PC.error, "can't append methods to '");
219: strncat(PC.error, PC.cclass_new->name().cstr(), MAX_STRING/2);
220: strcat(PC.error, "' - the class wasn't marked as partial");
221: YYERROR;
222: }
1.226 misha 223: } else {
1.230 misha 224: // mark new class as partial. we can add methods to it later.
225: PC.cclass_new->set_partial();
1.226 misha 226: }
1.230 misha 227: } else {
228: strcpy(PC.error, "'"OPTION_PARTIAL_CLASS"' option should be used straight after @"CLASS_NAME);
1.226 misha 229: YYERROR;
230: }
1.223 misha 231: } else {
1.226 misha 232: strcpy(PC.error, "'");
233: strncat(PC.error, option.cstr(), MAX_STRING/2);
234: strcat(PC.error, "' invalid option. valid options are "
1.230 misha 235: "'"OPTION_PARTIAL_CLASS"' and '"OPTION_ALL_VARS_LOCAL_NAME"'");
1.223 misha 236: YYERROR;
237: }
238: }
1.130 paf 239: } else {
240: strcpy(PC.error, "'");
241: strncat(PC.error, command.cstr(), MAX_STRING/2);
242: strcat(PC.error, "' invalid special name. valid names are "
1.223 misha 243: "'"CLASS_NAME"', '"USE_CONTROL_METHOD_NAME"', '"BASE_NAME"' and '"OPTIONS_CONTROL_METHOD_NAME"'.");
1.130 paf 244: YYERROR;
1.34 paf 245: }
246: };
1.132 paf 247: maybe_control_strings: empty | control_strings;
1.206 paf 248: control_strings: control_string | control_strings control_string { $$=$1; P(*$$, *$2) };
1.37 paf 249: control_string: maybe_string '\n';
250: maybe_string: empty | STRING;
1.34 paf 251:
1.222 misha 252: code_method: '@' STRING bracketed_maybe_strings maybe_bracketed_strings maybe_comment '\n' {
1.226 misha 253: PC.class_add();
1.208 paf 254: PC.explicit_result=false;
1.10 paf 255:
256: YYSTYPE params_names_code=$3;
1.206 paf 257: ArrayString* params_names=0;
258: if(int size=params_names_code->count()) {
259: params_names=new ArrayString;
260: for(int i=0; i<size; i+=OPERATIONS_PER_OPVALUE)
261: *params_names+=LA2S(*params_names_code, i);
1.75 paf 262: }
1.10 paf 263:
264: YYSTYPE locals_names_code=$4;
1.206 paf 265: ArrayString* locals_names=0;
1.223 misha 266: bool all_vars_local=false;
1.206 paf 267: if(int size=locals_names_code->count()) {
268: locals_names=new ArrayString;
1.208 paf 269: for(int i=0; i<size; i+=OPERATIONS_PER_OPVALUE) {
270: const String* local_name=LA2S(*locals_names_code, i);
271: if(*local_name==RESULT_VAR_NAME)
272: PC.explicit_result=true;
1.226 misha 273: else if(*local_name==OPTION_ALL_VARS_LOCAL_NAME)
1.223 misha 274: all_vars_local=true;
1.208 paf 275: else
276: *locals_names+=local_name;
277: }
1.75 paf 278: }
1.231 misha 279: if(!all_vars_local && PC.cclass && PC.cclass->is_vars_local())
1.223 misha 280: all_vars_local=true;
1.10 paf 281:
1.208 paf 282: Method* method=new Method(
1.206 paf 283: //name,
1.122 paf 284: Method::CT_ANY,
1.81 paf 285: 0, 0/*min,max numbered_params_count*/,
1.76 paf 286: params_names, locals_names,
1.223 misha 287: 0/*to be filled later in next {} */, 0, all_vars_local);
1.221 misha 288:
1.208 paf 289: *reinterpret_cast<Method**>(&$$)=method;
290:
291: // todo: check [][;result;]
1.222 misha 292: } maybe_codes {
1.231 misha 293: Method& method=*reinterpret_cast<Method*>($7);
294: // fill in the code
295: method.parser_code=$8;
296:
297: // register in class
298: const String& name=*LA2S(*$2);
299: PC.cclass->add_method(PC.alias_method(name), method);
1.8 paf 300: };
1.10 paf 301:
302: maybe_bracketed_strings: empty | bracketed_maybe_strings;
303: bracketed_maybe_strings: '[' maybe_strings ']' {$$=$2};
304: maybe_strings: empty | strings;
1.206 paf 305: strings: STRING | strings ';' STRING { $$=$1; P(*$$, *$3) };
1.10 paf 306:
307: maybe_comment: empty | STRING;
1.1 paf 308:
309: /* codes */
310:
1.10 paf 311: maybe_codes: empty | codes;
312:
1.206 paf 313: codes: code | codes code { $$=$1; P(*$$, *$2) };
1.81 paf 314: code: write_string | action;
1.209 paf 315: action: get | put | call;
1.1 paf 316:
317: /* get */
318:
1.64 paf 319: get: get_value {
1.238 ! misha 320: $$=N();
! 321: YYSTYPE code=$1;
1.235 misha 322: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
1.238 ! misha 323: if(!replace_top_opcode(*code, OP::OP_VALUE__GET_ELEMENT, /*=>*/OP::OP_VALUE__GET_ELEMENT__WRITE))
! 324: #endif
! 325: {
! 326: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT_FIELD
! 327: size_t count=code->count();
! 328: if(
! 329: #ifdef OPTIMIZE_BYTECODE_USE_TWO_OPERANDS_INSTRUCTIONS
! 330: count==6
! 331: #else
! 332: count==7
1.235 misha 333: #endif
1.238 ! misha 334: && (*code)[count-1].code==OP::OP_GET_ELEMENT
! 335: && replace_top_opcode(*code, OP::OP_GET_ELEMENT_FIELD, /*=>*/OP::OP_GET_ELEMENT_FIELD__WRITE)
! 336: ){
! 337: //P(*$$, *code, 0/*offset*/, count-1/*limit*/); // someday skip last OP_GET_ELEMENT
! 338: //break;
! 339: } else
! 340: #endif
! 341: changetail_or_append(*code,
! 342: OP::OP_GET_ELEMENT, false, /*=>*/OP::OP_GET_ELEMENT__WRITE,
! 343: /*or */OP::OP_WRITE_VALUE
! 344: ); /* value=pop; wcontext.write(value) */
! 345: }
! 346: P(*$$, *code);
1.1 paf 347: };
1.163 parser 348: get_value: '$' get_name_value { $$=$2 };
1.64 paf 349: get_name_value: name_without_curly_rdive EON | name_in_curly_rdive;
1.1 paf 350: name_in_curly_rdive: '{' name_without_curly_rdive '}' { $$=$2 };
1.44 paf 351: name_without_curly_rdive:
352: name_without_curly_rdive_read
353: | name_without_curly_rdive_class;
1.19 paf 354: name_without_curly_rdive_read: name_without_curly_rdive_code {
1.206 paf 355: $$=N();
1.238 ! misha 356: YYSTYPE diving_code=$1;
1.206 paf 357: const String* first_name=LA2S(*diving_code);
1.238 ! misha 358: // self.xxx... => xxx...
1.206 paf 359: // OP_VALUE+origin+string+OP_GET_ELEMENT+... -> OP_WITH_SELF+...
1.85 paf 360: if(first_name && *first_name==SELF_ELEMENT_NAME) {
1.238 ! misha 361: O(*$$, OP::OP_WITH_SELF); /* stack: starting context */
! 362: P(*$$, *diving_code,
1.22 paf 363: /* skip over... */
1.229 misha 364: diving_code->count()>=4?4/*OP::OP_VALUE+origin+string+OP::OP_GET_ELEMENTx*/:3/*OP::OP_+origin+string*/);
1.22 paf 365: } else {
1.233 misha 366: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
1.236 misha 367: size_t count=diving_code->count();
1.238 ! misha 368: if(count==4){ // optimization
! 369: O(*$$,
! 370: (PC.in_call_value)
! 371: ? OP::OP_VALUE__GET_ELEMENT_OR_OPERATOR // ^object[ : OP_VALUE+origin+string+OP_GET_ELEMENT => OP_VALUE__GET_ELEMENT_OR_OPERATOR+origin+string
! 372: : OP::OP_VALUE__GET_ELEMENT // $object : OP_VALUE+origin+string+OP_GET_ELEMENT => OP_VALUE__GET_ELEMENT+origin+string
1.233 misha 373: );
1.236 misha 374: P(*$$, *diving_code, 1/*offset*/, 2/*limit*/); // copy origin+value
1.238 ! misha 375: }
! 376: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT_FIELD
! 377: else if(
! 378: count==8
! 379: && (*diving_code)[7].code==OP::OP_GET_ELEMENT
! 380: && replace_top_opcode(*diving_code, OP::OP_VALUE, /*=>*/OP::OP_GET_ELEMENT_FIELD)
! 381: ){
! 382: // optimisation for ^object.method[ + $object.field
! 383: // OP_VALUE+origin+value+OP_GET_ELEMENT+OP_VALUE+origin+value+OP_GET_ELEMENT => OP_GET_ELEMENT_FIELD+origin+value+OP_VALUE+origin+value+OP_GET_ELEMENT
! 384: // OP_VALUE+origin+value+OP_GET_ELEMENT+OP_VALUE+origin+value+OP_GET_ELEMENT
! 385: // offset 0 1 2 3 4 5 6 7
! 386: P(*$$, *diving_code, 0/*offset*/, 3/*limit*/); // copy OP_GET_ELEMENT_FIELD+origin+value (skip first OP_GET_ELEMENT)
! 387: #ifdef OPTIMIZE_BYTECODE_USE_TWO_OPERANDS_INSTRUCTIONS
! 388: P(*$$, *diving_code, 5/*offset*/, 3/*limit*/); // copy origin+value+OP_GET_ELEMENT (last one is important!)
! 389: #else
! 390: P(*$$, *diving_code, 4/*offset*/, 4/*limit*/); // copy OP_VALUE+origin+value+OP_GET_ELEMENT (last one is important!)
! 391: #endif
! 392: }
! 393: #endif
! 394: else {
! 395: O(*$$, OP::OP_WITH_READ); /* stack: starting context */
1.233 misha 396: P(*$$, *diving_code);
397: }
398: #else
1.238 ! misha 399: O(*$$, OP::OP_WITH_READ); /* stack: starting context */
1.179 paf 400:
1.238 ! misha 401: // ^if OP_ELEMENT => ^if OP_ELEMENT_OR_OPERATOR
! 402: // optimized OP_VALUE+origin+string+OP_GET_ELEMENT. => OP_VALUE+origin+string+OP_GET_ELEMENT_OR_OPERATOR.
1.206 paf 403: if(PC.in_call_value && diving_code->count()==4)
1.229 misha 404: diving_code->put(4-1, OP::OP_GET_ELEMENT_OR_OPERATOR);
1.206 paf 405: P(*$$, *diving_code);
1.233 misha 406: #endif
1.22 paf 407: }
408: /* diving code; stack: current context */
1.1 paf 409: };
1.206 paf 410: name_without_curly_rdive_class: class_prefix name_without_curly_rdive_code { $$=$1; P(*$$, *$2) };
411: name_without_curly_rdive_code: name_advance2 | name_path name_advance2 { $$=$1; P(*$$, *$2) };
1.1 paf 412:
413: /* put */
414:
1.81 paf 415: put: '$' name_expr_wdive construct {
1.20 paf 416: $$=$2; /* stack: context,name */
1.206 paf 417: P(*$$, *$3); /* stack: context,name,constructor_value */
1.20 paf 418: };
1.44 paf 419: name_expr_wdive:
1.157 parser 420: name_expr_wdive_root
421: | name_expr_wdive_write
1.44 paf 422: | name_expr_wdive_class;
1.157 parser 423: name_expr_wdive_root: name_expr_dive_code {
1.206 paf 424: $$=N();
1.238 ! misha 425: YYSTYPE diving_code=$1;
1.206 paf 426: const String* first_name=LA2S(*diving_code);
1.238 ! misha 427: // $self.xxx... => $xxx...
! 428: // OP_VALUE+origin+string+OP_GET_ELEMENT+... => OP_WITH_SELF+...
1.85 paf 429: if(first_name && *first_name==SELF_ELEMENT_NAME) {
1.229 misha 430: O(*$$, OP::OP_WITH_SELF); /* stack: starting context */
1.206 paf 431: P(*$$, *diving_code,
1.23 paf 432: /* skip over... */
1.229 misha 433: diving_code->count()>=4?4/*OP::OP_VALUE+origin+string+OP::OP_GET_ELEMENTx*/:3/*OP::OP_+origin+string*/);
1.23 paf 434: } else {
1.229 misha 435: O(*$$, OP::OP_WITH_ROOT); /* stack: starting context */
1.206 paf 436: P(*$$, *diving_code);
1.23 paf 437: }
438: /* diving code; stack: current context */
1.156 parser 439: };
1.157 parser 440: name_expr_wdive_write: '.' name_expr_dive_code {
1.206 paf 441: $$=N();
1.229 misha 442: O(*$$, OP::OP_WITH_WRITE); /* stack: starting context */
1.206 paf 443: P(*$$, *$2); /* diving code; stack: context,name */
1.20 paf 444: };
1.206 paf 445: name_expr_wdive_class: class_prefix name_expr_dive_code { $$=$1; P(*$$, *$2) };
1.20 paf 446:
1.149 parser 447: construct:
1.163 parser 448: construct_square
449: | construct_round
450: | construct_curly
1.149 parser 451: ;
1.211 paf 452: construct_square: '[' {
453: // allow $result_or_other_variable[ letters here any time ]
454: *reinterpret_cast<bool*>(&$$)=PC.explicit_result; PC.explicit_result=false;
455: } any_constructor_code_value {
1.213 paf 456: PC.explicit_result=*reinterpret_cast<bool*>(&$2);
1.211 paf 457: } ']' {
1.149 parser 458: // stack: context, name
1.211 paf 459: $$=$3; // stack: context, name, value
1.229 misha 460: O(*$$, OP::OP_CONSTRUCT_VALUE); /* value=pop; name=pop; context=pop; construct(context,name,value) */
1.81 paf 461: }
462: ;
1.149 parser 463: construct_round: '(' expr_value ')' {
1.206 paf 464: $$=N();
1.229 misha 465: O(*$$, OP::OP_PREPARE_TO_EXPRESSION);
1.149 parser 466: // stack: context, name
1.206 paf 467: P(*$$, *$2); // stack: context, name, value
1.229 misha 468: O(*$$, OP::OP_CONSTRUCT_EXPR); /* value=pop->as_expr_result; name=pop; context=pop; construct(context,name,value) */
1.81 paf 469: }
1.52 paf 470: ;
1.149 parser 471: construct_curly: '{' maybe_codes '}' {
472: // stack: context, name
1.206 paf 473: $$=N();
1.229 misha 474: OA(*$$, OP::OP_CURLY_CODE__CONSTRUCT, $2); /* code=pop; name=pop; context=pop; construct(context,name,junction(code)) */
1.149 parser 475: };
476:
1.55 paf 477: any_constructor_code_value:
1.157 parser 478: void_value /* optimized $var[] case */
1.52 paf 479: | STRING /* optimized $var[STRING] case */
1.55 paf 480: | constructor_code_value /* $var[something complex] */
1.1 paf 481: ;
1.55 paf 482: constructor_code_value: constructor_code {
1.206 paf 483: $$=N();
1.229 misha 484: OA(*$$, OP::OP_OBJECT_POOL, $1); /* stack: empty write context */
1.183 paf 485: /* some code that writes to that context */
486: /* context=pop; stack: context.value() */
1.1 paf 487: };
1.55 paf 488: constructor_code: codes__excluding_sole_str_literal;
1.206 paf 489: codes__excluding_sole_str_literal: action | code codes { $$=$1; P(*$$, *$2) };
1.27 paf 490:
1.1 paf 491: /* call */
492:
1.66 paf 493: call: call_value {
1.238 ! misha 494: #ifdef OPTIMIZE_BYTECODE_CUT_REM_OPERATOR
! 495: if((*$1).count())
! 496: #endif
! 497: {
! 498: $$=$1; /* stack: value */
! 499: changetail_or_append(*$$,
! 500: OP::OP_CALL, true, /*=>*/ OP::OP_CALL__WRITE,
! 501: /*or */OP::OP_WRITE_VALUE); /* value=pop; wcontext.write(value) */
! 502: }
1.66 paf 503: };
1.177 paf 504: call_value: '^' {
1.180 paf 505: PC.in_call_value=true;
1.177 paf 506: }
507: call_name {
1.180 paf 508: PC.in_call_value=false;
1.177 paf 509: }
1.154 parser 510: store_params EON { /* ^field.$method{vasya} */
1.238 ! misha 511: #ifdef OPTIMIZE_BYTECODE_CUT_REM_OPERATOR
! 512: const String* operator_name=LA2S(*$3, 0, OP::OP_VALUE__GET_ELEMENT_OR_OPERATOR);
! 513: if(operator_name && *operator_name == REM_OPERATOR_NAME){
! 514: $$=N();
! 515: } else
! 516: #endif
! 517: {
! 518: $$=$3; /* with_xxx,diving code; stack: context,method_junction */
1.123 paf 519:
1.238 ! misha 520: YYSTYPE params_code=$5;
! 521: if(params_code->count()==3) { // probably [] case. [OP::OP_VALUE+origin+Void]
! 522: if(Value* value=LA2V(*params_code)) // it is OP_VALUE+origin+value?
! 523: if(value->is_void()) // value is VVoid?
! 524: params_code=0; // ^zzz[] case. don't append lone empty param.
! 525: }
! 526: /* stack: context, method_junction */
! 527: OA(*$$, OP::OP_CALL, params_code); // method_frame=make frame(pop junction); ncontext=pop; call(ncontext,method_frame) stack: value
! 528: }
1.1 paf 529: };
530:
1.43 paf 531: call_name: name_without_curly_rdive;
1.38 paf 532:
1.206 paf 533: store_params: store_param | store_params store_param { $$=$1; P(*$$, *$2) };
1.69 paf 534: store_param:
535: store_square_param
536: | store_round_param
537: | store_curly_param
1.31 paf 538: ;
1.210 paf 539: store_square_param: '[' {
1.211 paf 540: // allow ^call[ letters here any time ]
1.210 paf 541: *reinterpret_cast<bool*>(&$$)=PC.explicit_result; PC.explicit_result=false;
542: } store_code_param_parts {
1.213 paf 543: PC.explicit_result=*reinterpret_cast<bool*>(&$2);
1.210 paf 544: } ']' {$$=$3};
1.69 paf 545: store_round_param: '(' store_expr_param_parts ')' {$$=$2};
1.94 paf 546: store_curly_param: '{' store_curly_param_parts '}' {$$=$2};
1.69 paf 547: store_code_param_parts:
548: store_code_param_part
1.206 paf 549: | store_code_param_parts ';' store_code_param_part { $$=$1; P(*$$, *$3) }
1.69 paf 550: ;
551: store_expr_param_parts:
552: store_expr_param_part
1.206 paf 553: | store_expr_param_parts ';' store_expr_param_part { $$=$1; P(*$$, *$3) }
1.69 paf 554: ;
1.94 paf 555: store_curly_param_parts:
556: store_curly_param_part
1.206 paf 557: | store_curly_param_parts ';' store_curly_param_part { $$=$1; P(*$$, *$3) }
1.94 paf 558: ;
1.120 paf 559: store_code_param_part: code_param_value {
1.32 paf 560: $$=$1;
1.120 paf 561: };
1.214 paf 562: store_expr_param_part: expr_value {
563: YYSTYPE expr_code=$1;
1.215 paf 564: if(expr_code->count()==3
1.234 misha 565: && (*expr_code)[0].code==OP::OP_VALUE) { // optimizing (double/bool/incidently 'string' too) case. [OP::OP_VALUE+origin+Double]. no evaluating
1.214 paf 566: $$=expr_code;
567: } else {
1.238 ! misha 568: YYSTYPE code=N();
1.229 misha 569: O(*code, OP::OP_PREPARE_TO_EXPRESSION);
1.214 paf 570: P(*code, *expr_code);
1.229 misha 571: O(*code, OP::OP_WRITE_EXPR_RESULT);
1.214 paf 572: $$=N();
1.229 misha 573: OA(*$$, OP::OP_EXPR_CODE__STORE_PARAM, code);
1.214 paf 574: }
1.69 paf 575: };
1.94 paf 576: store_curly_param_part: maybe_codes {
1.206 paf 577: $$=N();
1.229 misha 578: OA(*$$, OP::OP_CURLY_CODE__STORE_PARAM, $1);
1.94 paf 579: };
1.120 paf 580: code_param_value:
1.157 parser 581: void_value /* optimized [;...] case */
1.120 paf 582: | STRING /* optimized [STRING] case */
583: | constructor_code_value /* [something complex] */
584: ;
1.1 paf 585:
586: /* name */
587:
1.206 paf 588: name_expr_dive_code: name_expr_value | name_path name_expr_value { $$=$1; P(*$$, *$2) };
1.1 paf 589:
1.206 paf 590: name_path: name_step | name_path name_step { $$=$1; P(*$$, *$2) };
1.1 paf 591: name_step: name_advance1 '.';
592: name_advance1: name_expr_value {
1.177 paf 593: // we know that name_advance1 not called from ^xxx context
594: // so we'll not check for operator call possibility as we do in name_advance2
595:
1.1 paf 596: /* stack: context */
597: $$=$1; /* stack: context,name */
1.229 misha 598: O(*$$, OP::OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */
1.1 paf 599: };
600: name_advance2: name_expr_value {
601: /* stack: context */
602: $$=$1; /* stack: context,name */
1.229 misha 603: O(*$$, OP::OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */
1.1 paf 604: }
1.4 paf 605: | STRING BOGUS
1.1 paf 606: ;
607: name_expr_value:
1.4 paf 608: STRING /* subname_is_const */
1.1 paf 609: | name_expr_subvar_value /* $subname_is_var_value */
1.160 parser 610: | name_expr_with_subvar_value /* xxx$part_of_subname_is_var_value */
1.166 parser 611: | name_square_code_value /* [codes] */
1.1 paf 612: ;
613: name_expr_subvar_value: '$' subvar_ref_name_rdive {
614: $$=$2;
1.229 misha 615: O(*$$, OP::OP_GET_ELEMENT);
1.1 paf 616: };
1.4 paf 617: name_expr_with_subvar_value: STRING subvar_get_writes {
1.238 ! misha 618: YYSTYPE code;
1.183 paf 619: {
1.206 paf 620: change_string_literal_to_write_string_literal(*(code=$1));
621: P(*code, *$2);
1.183 paf 622: }
1.206 paf 623: $$=N();
1.229 misha 624: OA(*$$, OP::OP_STRING_POOL, code);
1.1 paf 625: };
1.212 paf 626: name_square_code_value: '[' {
627: // allow $result_or_other_variable[ letters here any time ]
628: *reinterpret_cast<bool*>(&$$)=PC.explicit_result; PC.explicit_result=false;
629: } codes {
1.213 paf 630: PC.explicit_result=*reinterpret_cast<bool*>(&$2);
1.212 paf 631: } ']' {
1.206 paf 632: $$=N();
1.229 misha 633: OA(*$$, OP::OP_OBJECT_POOL, $3); /* stack: empty write context */
1.183 paf 634: /* some code that writes to that context */
635: /* context=pop; stack: context.value() */
1.160 parser 636: };
1.154 parser 637: subvar_ref_name_rdive: STRING {
1.206 paf 638: $$=N();
1.229 misha 639: O(*$$, OP::OP_WITH_READ);
1.206 paf 640: P(*$$, *$1);
1.1 paf 641: };
1.206 paf 642: subvar_get_writes: subvar__get_write | subvar_get_writes subvar__get_write { $$=$1; P(*$$, *$2) };
1.1 paf 643: subvar__get_write: '$' subvar_ref_name_rdive {
644: $$=$2;
1.229 misha 645: O(*$$, OP::OP_GET_ELEMENT__WRITE);
1.42 paf 646: };
647:
1.154 parser 648: class_prefix:
649: class_static_prefix
650: | class_constructor_prefix
651: ;
1.155 parser 652: class_static_prefix: STRING ':' {
653: $$=$1; // stack: class name string
1.206 paf 654: if(*LA2S(*$$) == BASE_NAME) { // pseudo BASE class
655: if(VStateless_class* base=PC.cclass->base_class()) {
656: change_string_literal_value(*$$, base->name());
1.189 paf 657: } else {
658: strcpy(PC.error, "no base class declared");
659: YYERROR;
660: }
661: }
1.233 misha 662: #ifdef OPTIMIZE_BYTECODE_GET_CLASS
1.238 ! misha 663: // optimized OP_VALUE+origin+string+OP_GET_CLASS => OP_VALUE__GET_CLASS+origin+string
1.233 misha 664: replace_top_opcode(*$$, OP::OP_VALUE, OP::OP_VALUE__GET_CLASS, true/*assert if top opcode != OP_VALUE*/)
665: #else
1.229 misha 666: O(*$$, OP::OP_GET_CLASS);
1.233 misha 667: #endif
1.155 parser 668: };
669: class_constructor_prefix: class_static_prefix ':' {
1.154 parser 670: $$=$1;
1.180 paf 671: if(!PC.in_call_value) {
1.154 parser 672: strcpy(PC.error, ":: not allowed here");
673: YYERROR;
674: }
1.229 misha 675: O(*$$, OP::OP_PREPARE_TO_CONSTRUCT_OBJECT);
1.1 paf 676: };
677:
1.53 paf 678:
1.56 paf 679: /* expr */
1.53 paf 680:
1.214 paf 681: expr_value: expr;
1.56 paf 682: expr:
1.214 paf 683: double_or_STRING
1.216 paf 684: | true_value
685: | false_value
1.64 paf 686: | get_value
1.66 paf 687: | call_value
1.216 paf 688: | '"' string_inside_quotes_value '"' { $$ = $2 }
689: | '\'' string_inside_quotes_value '\'' { $$ = $2 }
1.60 paf 690: | '(' expr ')' { $$ = $2; }
691: /* stack: operand // stack: @operand */
1.229 misha 692: | '-' expr %prec NUNARY { $$=$2; O(*$$, OP::OP_NEG) }
1.202 paf 693: | '+' expr %prec NUNARY { $$=$2 }
1.229 misha 694: | '~' expr { $$=$2; O(*$$, OP::OP_INV) }
695: | '!' expr { $$=$2; O(*$$, OP::OP_NOT) }
696: | "def" expr { $$=$2; O(*$$, OP::OP_DEF) }
697: | "in" expr { $$=$2; O(*$$, OP::OP_IN) }
698: | "-f" expr { $$=$2; O(*$$, OP::OP_FEXISTS) }
699: | "-d" expr { $$=$2; O(*$$, OP::OP_DEXISTS) }
1.60 paf 700: /* stack: a,b // stack: a@b */
1.229 misha 701: | expr '-' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_SUB) }
702: | expr '+' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_ADD) }
703: | expr '*' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_MUL) }
704: | expr '/' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_DIV) }
705: | expr '%' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_MOD) }
706: | expr '\\' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_INTDIV) }
707: | expr "<<" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_SL) }
708: | expr ">>" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_SR) }
709: | expr '&' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_AND) }
710: | expr '|' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_OR) }
711: | expr "!|" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_XOR) }
712: | expr "&&" expr { $$=$1; OA(*$$, OP::OP_NESTED_CODE, $3); O(*$$, OP::OP_LOG_AND) }
713: | expr "||" expr { $$=$1; OA(*$$, OP::OP_NESTED_CODE, $3); O(*$$, OP::OP_LOG_OR) }
714: | expr "!||" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_LOG_XOR) }
715: | expr '<' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_LT) }
716: | expr '>' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_GT) }
717: | expr "<=" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_LE) }
718: | expr ">=" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_GE) }
719: | expr "==" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_EQ) }
720: | expr "!=" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_NE) }
721: | expr "lt" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_LT) }
722: | expr "gt" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_GT) }
723: | expr "le" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_LE) }
724: | expr "ge" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_GE) }
725: | expr "eq" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_EQ) }
726: | expr "ne" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_NE) }
727: | expr "is" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_IS) }
1.56 paf 728: ;
1.214 paf 729:
730: double_or_STRING: STRING {
1.238 ! misha 731: // optimized OP_STRING => OP_VALUE for doubles
1.214 paf 732: maybe_change_string_literal_to_double_literal(*($$=$1));
733: };
1.55 paf 734:
1.65 paf 735: string_inside_quotes_value: maybe_codes {
1.238 ! misha 736: #ifdef OPTIMIZE_BYTECODE_STRING_POOL
! 737: // it brakes ^if(" 09 "){...}
! 738: YYSTYPE code=$1;
! 739: $$=N();
! 740: if(code->count()==3 && replace_top_opcode(*code, OP::OP_STRING__WRITE, OP::OP_VALUE)){
! 741: // optimized OP_STRING__WRITE+origin+value => OP_VALUE+origin+value without starting OP_STRING_POOL
! 742: P(*$$, *code);
! 743: } else {
! 744: OA(*$$, OP::OP_STRING_POOL, code); /* stack: empty write context */
! 745: }
! 746: #else
1.206 paf 747: $$=N();
1.229 misha 748: OA(*$$, OP::OP_STRING_POOL, $1); /* stack: empty write context */
1.238 ! misha 749: #endif
1.183 paf 750: /* some code that writes to that context */
751: /* context=pop; stack: context.get_string() */
1.53 paf 752: };
1.1 paf 753:
1.27 paf 754: /* basics */
1.1 paf 755:
1.81 paf 756: write_string: STRING {
1.238 ! misha 757: // optimized OP_STRING+OP_WRITE_VALUE => OP_STRING__WRITE
1.209 paf 758: change_string_literal_to_write_string_literal(*($$=$1))
1.54 paf 759: };
760:
1.216 paf 761: void_value: /* empty */ { $$=VL(/*we know that we will not change it*/const_cast<VVoid*>(&vvoid), 0, 0, 0) }
762: true_value: "true" { $$ = VL(/*we know that we will not change it*/const_cast<VBool*>(&vtrue), 0, 0, 0) }
763: false_value: "false" { $$ = VL(/*we know that we will not change it*/const_cast<VBool*>(&vfalse), 0, 0, 0) }
764:
1.206 paf 765: empty: /* empty */ { $$=N() };
1.1 paf 766:
767: %%
1.105 paf 768: #endif
1.1 paf 769:
770: /*
771: 000$111(2222)00
772: 000$111{3333}00
1.9 paf 773: $,^: push,=0
1.1 paf 774: 1:( { break=pop
775: 2:( ) pop
776: 3:{ } pop
777:
778: 000^111(2222)4444{33333}4000
1.9 paf 779: $,^: push,=0
1.1 paf 780: 1:( { break=pop
781: 2:( )=4
782: 3:{ }=4
783: 4:[^({]=pop
784: */
785:
1.206 paf 786: inline void ungetc(Parse_control& pc, uint last_line_end_col) {
787: pc.source--;
788: if(pc.pos.col==0) {
789: --pc.pos.line; pc.pos.col=last_line_end_col;
790: } else
791: --pc.pos.col;
792:
793: }
794: static int yylex(YYSTYPE *lvalp, void *apc) {
795: register Parse_control& pc=*static_cast<Parse_control*>(apc);
796:
797: #define lexical_brackets_nestage pc.brackets_nestages[pc.ls_sp]
1.48 paf 798: #define RC {result=c; goto break2; }
1.1 paf 799:
1.206 paf 800: register int c;
801: int result;
1.1 paf 802:
1.206 paf 803: if(pc.pending_state) {
804: result=pc.pending_state;
805: pc.pending_state=0;
1.1 paf 806: return result;
807: }
808:
1.206 paf 809: const char *begin=pc.source;
810: Pos begin_pos=pc.pos;
1.91 paf 811: const char *end;
1.67 paf 812: int skip_analized=0;
1.50 paf 813: while(true) {
1.206 paf 814: c=*(end=(pc.source++));
815: // fprintf(stderr, "\nchar: %c %02X; nestage: %d, sp=%d", c, c, lexical_brackets_nestage, pc.sp);
1.1 paf 816:
1.208 paf 817: if(c=='\n')
1.206 paf 818: pc.pos_next_line();
1.208 paf 819: else
1.206 paf 820: pc.pos_next_c(c);
1.208 paf 821: // fprintf(stderr, "\nchar: %c file(%d:%d)", c, pc.pos.line, pc.pos.col);
1.73 paf 822:
1.208 paf 823: if(pc.pos.col==0+1 && c=='@') {
1.206 paf 824: if(pc.ls==LS_DEF_SPECIAL_BODY) {
1.175 paf 825: // @SPECIAL
826: // ...
827: // @<here =
1.206 paf 828: pop_LS(pc); // exiting from LS_DEF_SPECIAL_BODY state
1.175 paf 829: } // continuing checks
1.206 paf 830: if(pc.ls==LS_USER) {
831: push_LS(pc, LS_DEF_NAME);
1.171 parser 832: RC;
1.175 paf 833: } else // @ in first column inside some code [when could that be?]
1.171 parser 834: result=BAD_METHOD_DECL_START;
835: goto break2;
1.209 paf 836: }
837: if(c=='^') {
1.206 paf 838: if(pc.ls==LS_METHOD_AFTER) {
1.203 paf 839: // handle after-method situation
1.206 paf 840: pop_LS(pc);
1.203 paf 841: result=EON;
842: skip_analized=-1; // return to punctuation afterwards to assure it's literality
843: goto break2;
844: }
1.206 paf 845: switch(pc.ls) {
1.169 parser 846: case LS_EXPRESSION_VAR_NAME_WITH_COLON:
847: case LS_EXPRESSION_VAR_NAME_WITHOUT_COLON:
848: case LS_VAR_NAME_SIMPLE_WITH_COLON:
849: case LS_VAR_NAME_SIMPLE_WITHOUT_COLON:
850: case LS_VAR_NAME_CURLY:
851: case LS_METHOD_NAME:
1.194 paf 852: case LS_USER_COMMENT:
1.169 parser 853: case LS_DEF_COMMENT:
854: // no literals in names, please
855: break;
856: default:
1.206 paf 857: switch(*pc.source) {
1.165 parser 858: // ^escaping some punctuators
1.228 misha 859: case '^': case '$': case ';': case '@':
1.126 paf 860: case '(': case ')':
1.48 paf 861: case '[': case ']':
862: case '{': case '}':
1.172 parser 863: case '"': case ':':
1.40 paf 864: if(end!=begin) {
1.206 paf 865: if(!pc.string_start)
866: pc.string_start=begin_pos;
1.40 paf 867: // append piece till ^
1.206 paf 868: pc.string.append_strdup_know_length(begin, end-begin);
1.40 paf 869: }
1.63 paf 870: // reset piece 'begin' position & line
1.206 paf 871: begin=pc.source; // ->punctuation
872: begin_pos=pc.pos;
1.203 paf 873: // skip over _ after ^
1.206 paf 874: pc.source++; pc.pos.col++;
1.203 paf 875: // skip analysis = forced literal
876: continue;
1.114 paf 877:
878: // converting ^#HH into char(hex(HH))
879: case '#':
880: if(end!=begin) {
1.206 paf 881: if(!pc.string_start)
882: pc.string_start=begin_pos;
1.114 paf 883: // append piece till ^
1.206 paf 884: pc.string.append_strdup_know_length(begin, end-begin);
1.114 paf 885: }
886: // #HH ?
1.228 misha 887: if(pc.source[1] && isxdigit(pc.source[1]) && pc.source[2] && isxdigit(pc.source[2])) {
1.218 paf 888: char c=(char)(
1.206 paf 889: hex_value[(unsigned char)pc.source[1]]*0x10+
1.218 paf 890: hex_value[(unsigned char)pc.source[2]]);
1.206 paf 891: if(c==0) {
1.114 paf 892: result=BAD_HEX_LITERAL;
893: goto break2; // wrong hex value[no ^#00 chars allowed]: bail out
894: }
895: // append char(hex(HH))
1.206 paf 896: pc.string.append(c);
1.114 paf 897: // skip over ^#HH
1.206 paf 898: pc.source+=3;
899: pc.pos.col+=3;
1.114 paf 900: // reset piece 'begin' position & line
1.206 paf 901: begin=pc.source; // ->after ^#HH
902: begin_pos=pc.pos;
1.203 paf 903: // skip analysis = forced literal
1.114 paf 904: continue;
905: }
1.228 misha 906: // just escaped char
907: // reset piece 'begin' position & line
908: begin=pc.source;
909: begin_pos=pc.pos;
910: // skip over _ after ^
911: pc.source++; pc.pos.col++;
912: // skip analysis = forced literal
913: continue;
1.1 paf 914: }
1.169 parser 915: break;
1.203 paf 916: }
1.169 parser 917: }
1.113 paf 918: // #comment start skipping
1.206 paf 919: if(c=='#' && pc.pos.col==1) {
1.112 paf 920: if(end!=begin) {
1.206 paf 921: if(!pc.string_start)
922: pc.string_start=begin_pos;
1.112 paf 923: // append piece till #
1.206 paf 924: pc.string.append_strdup_know_length(begin, end-begin);
1.112 paf 925: }
926: // fall into COMMENT lexical state [wait for \n]
1.206 paf 927: push_LS(pc, LS_USER_COMMENT);
1.175 paf 928: continue;
1.112 paf 929: }
1.206 paf 930: switch(pc.ls) {
1.10 paf 931:
932: // USER'S = NOT OURS
1.1 paf 933: case LS_USER:
1.206 paf 934: case LS_NAME_SQUARE_PART: // name.[here].xxx
935: if(pc.trim_bof)
1.153 parser 936: switch(c) {
937: case '\n': case ' ': case '\t':
1.206 paf 938: begin=pc.source;
939: begin_pos=pc.pos;
1.152 parser 940: continue; // skip it
1.153 parser 941: default:
1.206 paf 942: pc.trim_bof=false;
1.152 parser 943: }
1.48 paf 944: switch(c) {
945: case '$':
1.206 paf 946: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 947: RC;
948: case '^':
1.206 paf 949: push_LS(pc, LS_METHOD_NAME);
1.48 paf 950: RC;
1.166 parser 951: case ']':
1.206 paf 952: if(pc.ls==LS_NAME_SQUARE_PART)
1.166 parser 953: if(--lexical_brackets_nestage==0) {// $name.[co<]?>de<]?>
1.206 paf 954: pop_LS(pc); // $name.[co<]>de<]!>
1.166 parser 955: RC;
956: }
1.160 parser 957: break;
1.166 parser 958: case '[': // $name.[co<[>de]
1.206 paf 959: if(pc.ls==LS_NAME_SQUARE_PART)
1.166 parser 960: lexical_brackets_nestage++;
1.161 parser 961: break;
1.112 paf 962: }
1.209 paf 963: if(pc.explicit_result && c)
964: switch(c) {
965: case '\n': case ' ': case '\t':
966: begin=pc.source;
967: begin_pos=pc.pos;
968: continue; // skip it
969: default:
970: result=BAD_NONWHITESPACE_CHARACTER_IN_EXPLICIT_RESULT_MODE;
971: goto break2;
972: }
1.112 paf 973: break;
974:
975: // #COMMENT
1.194 paf 976: case LS_USER_COMMENT:
1.112 paf 977: if(c=='\n') {
978: // skip comment
1.206 paf 979: begin=pc.source;
980: begin_pos=pc.pos;
1.112 paf 981:
1.206 paf 982: pop_LS(pc);
1.112 paf 983: continue;
1.1 paf 984: }
1.48 paf 985: break;
986:
987: // STRING IN EXPRESSION
1.145 parser 988: case LS_EXPRESSION_STRING_QUOTED:
989: case LS_EXPRESSION_STRING_APOSTROFED:
1.48 paf 990: switch(c) {
991: case '"':
1.145 parser 992: case '\'':
993: if(
1.206 paf 994: pc.ls == LS_EXPRESSION_STRING_QUOTED && c=='"' ||
995: pc.ls == LS_EXPRESSION_STRING_APOSTROFED && c=='\'') {
996: pop_LS(pc); //"abc". | 'abc'.
1.145 parser 997: RC;
998: }
999: break;
1.48 paf 1000: case '$':
1.206 paf 1001: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1002: RC;
1003: case '^':
1.206 paf 1004: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1005: RC;
1.10 paf 1006: }
1007: break;
1008:
1009: // METHOD DEFINITION
1010: case LS_DEF_NAME:
1.48 paf 1011: switch(c) {
1012: case '[':
1.206 paf 1013: pc.ls=LS_DEF_PARAMS;
1.48 paf 1014: RC;
1015: case '\n':
1.206 paf 1016: pc.ls=LS_DEF_SPECIAL_BODY;
1.48 paf 1017: RC;
1.10 paf 1018: }
1019: break;
1.48 paf 1020:
1.10 paf 1021: case LS_DEF_PARAMS:
1.48 paf 1022: switch(c) {
1.192 paf 1023: case '$': // common error
1.193 paf 1024: result=BAD_METHOD_PARAMETER_NAME_CHARACTER;
1025: goto break2;
1.48 paf 1026: case ';':
1027: RC;
1028: case ']':
1.206 paf 1029: pc.ls=*pc.source=='['?LS_DEF_LOCALS:LS_DEF_COMMENT;
1.48 paf 1030: RC;
1.49 paf 1031: case '\n': // wrong. bailing out
1.206 paf 1032: pop_LS(pc);
1.48 paf 1033: RC;
1.10 paf 1034: }
1035: break;
1.48 paf 1036:
1.10 paf 1037: case LS_DEF_LOCALS:
1.48 paf 1038: switch(c) {
1039: case '[':
1040: case ';':
1041: RC;
1042: case ']':
1.206 paf 1043: pc.ls=LS_DEF_COMMENT;
1.48 paf 1044: RC;
1045: case '\n': // wrong. bailing out
1.206 paf 1046: pop_LS(pc);
1.48 paf 1047: RC;
1.10 paf 1048: }
1049: break;
1.48 paf 1050:
1.10 paf 1051: case LS_DEF_COMMENT:
1052: if(c=='\n') {
1.206 paf 1053: pop_LS(pc);
1.48 paf 1054: RC;
1.37 paf 1055: }
1056: break;
1057:
1.48 paf 1058: case LS_DEF_SPECIAL_BODY:
1.175 paf 1059: if(c=='\n')
1.48 paf 1060: RC;
1061: break;
1062:
1063: // (EXPRESSION)
1.69 paf 1064: case LS_VAR_ROUND:
1065: case LS_METHOD_ROUND:
1.48 paf 1066: switch(c) {
1067: case ')':
1068: if(--lexical_brackets_nestage==0)
1.206 paf 1069: if(pc.ls==LS_METHOD_ROUND) // method round param ended
1070: pc.ls=LS_METHOD_AFTER; // look for method end
1071: else // pc.ls==LS_VAR_ROUND // variable constructor ended
1072: pop_LS(pc); // return to normal life
1.48 paf 1073: RC;
1.194 paf 1074: case '#': // comment start skipping
1075: if(end!=begin) {
1.206 paf 1076: if(!pc.string_start)
1077: pc.string_start=begin_pos;
1.194 paf 1078: // append piece till #
1.206 paf 1079: pc.string.append_strdup_know_length(begin, end-begin);
1.194 paf 1080: }
1081: // fall into COMMENT lexical state [wait for \n]
1.206 paf 1082: push_LS(pc, LS_EXPRESSION_COMMENT);
1.194 paf 1083: lexical_brackets_nestage=1;
1084: continue;
1.48 paf 1085: case '$':
1.206 paf 1086: push_LS(pc, LS_EXPRESSION_VAR_NAME_WITH_COLON);
1.48 paf 1087: RC;
1088: case '^':
1.206 paf 1089: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1090: RC;
1091: case '(':
1092: lexical_brackets_nestage++;
1093: RC;
1.67 paf 1094: case '-':
1.206 paf 1095: switch(*pc.source) {
1.127 paf 1096: case 'f': // -f
1.67 paf 1097: skip_analized=1;
1098: result=FEXISTS;
1.127 paf 1099: goto break2;
1100: case 'd': // -d
1101: skip_analized=1;
1102: result=DEXISTS;
1103: goto break2;
1.191 paf 1104: default: // minus
1.67 paf 1105: result=c;
1.127 paf 1106: goto break2;
1107: }
1.67 paf 1108: goto break2;
1.173 paf 1109: case '+': case '*': case '/': case '%': case '\\':
1.58 paf 1110: case '~':
1.48 paf 1111: case ';':
1112: RC;
1.193 paf 1113: case '&': case '|':
1.206 paf 1114: if(*pc.source==c) { // && ||
1.193 paf 1115: result=c=='&'?LAND:LOR;
1.67 paf 1116: skip_analized=1;
1.58 paf 1117: } else
1118: result=c;
1119: goto break2;
1.193 paf 1120: case '!':
1.206 paf 1121: switch(pc.source[0]) {
1.193 paf 1122: case '|': // !| !||
1123: skip_analized=1;
1.206 paf 1124: if(pc.source[1]=='|') {
1.193 paf 1125: skip_analized++;
1126: result=LXOR;
1127: } else
1128: result=NXOR;
1129: goto break2;
1130: case '=': // !=
1131: skip_analized=1;
1132: result=NNE;
1133: goto break2;
1134: }
1135: RC;
1.195 paf 1136:
1137: case '<': // <<, <=, <
1.206 paf 1138: switch(*pc.source) {
1.195 paf 1139: case '<': // <[<]
1140: skip_analized=1; result=NSL; break;
1141: case '=': // <[=]
1142: skip_analized=1; result=NLE; break;
1143: default: // <[]
1144: result=c; break;
1145: }
1146: goto break2;
1147: case '>': // >>, >=, >
1.206 paf 1148: switch(*pc.source) {
1.195 paf 1149: case '>': // >[>]
1150: skip_analized=1; result=NSR; break;
1151: case '=': // >[=]
1152: skip_analized=1; result=NGE; break;
1153: default: // >[]
1154: result=c; break;
1155: }
1156: goto break2;
1157: case '=': // ==
1.206 paf 1158: switch(*pc.source) {
1.195 paf 1159: case '=': // =[=]
1160: skip_analized=1; result=NEQ; break;
1161: default: // =[]
1162: result=c; break; // not used now
1163: }
1.58 paf 1164: goto break2;
1.195 paf 1165:
1.48 paf 1166: case '"':
1.206 paf 1167: push_LS(pc, LS_EXPRESSION_STRING_QUOTED);
1.145 parser 1168: RC;
1169: case '\'':
1.206 paf 1170: push_LS(pc, LS_EXPRESSION_STRING_APOSTROFED);
1.48 paf 1171: RC;
1.50 paf 1172: case 'l': case 'g': case 'e': case 'n':
1.51 paf 1173: if(end==begin) // right after whitespace
1.206 paf 1174: if(isspace(pc.source[1])) {
1175: switch(*pc.source) {
1.117 paf 1176: // case '?': // ok [and bad cases, yacc would bark at them]
1177: case 't': // lt gt [et nt]
1178: result=c=='l'?SLT:c=='g'?SGT:BAD_STRING_COMPARISON_OPERATOR;
1179: skip_analized=1;
1180: goto break2;
1181: case 'e': // le ge ne [ee]
1182: result=c=='l'?SLE:c=='g'?SGE:c=='n'?SNE:BAD_STRING_COMPARISON_OPERATOR;
1183: skip_analized=1;
1184: goto break2;
1185: case 'q': // eq [lq gq nq]
1186: result=c=='e'?SEQ:BAD_STRING_COMPARISON_OPERATOR;
1187: skip_analized=1;
1188: goto break2;
1189: }
1.67 paf 1190: }
1191: break;
1192: case 'i':
1193: if(end==begin) // right after whitespace
1.206 paf 1194: if(isspace(pc.source[1])) {
1195: switch(pc.source[0]) {
1.117 paf 1196: case 'n': // in
1.95 paf 1197: skip_analized=1;
1198: result=IN;
1199: goto break2;
1.117 paf 1200: case 's': // is
1.95 paf 1201: skip_analized=1;
1202: result=IS;
1203: goto break2;
1204: }
1.67 paf 1205: }
1206: break;
1207: case 'd':
1208: if(end==begin) // right after whitespace
1.206 paf 1209: if(pc.source[0]=='e' && pc.source[1]=='f') { // def
1.225 misha 1210: switch(pc.source[2]){
1211: case ' ': case '\t': case '\n': case '"': case '\'': case '^': case '$': // non-quoted string without whitespace after 'def' is not allowed
1212: skip_analized=2;
1213: result=DEF;
1214: goto break2;
1215: }
1216: // error: incorrect char after 'def'
1.50 paf 1217: }
1.48 paf 1218: break;
1.216 paf 1219: case 't':
1220: if(end==begin) // right after whitespace
1.225 misha 1221: if(pc.source[0]=='r' && pc.source[1]=='u' && pc.source[2]=='e') { // true
1.216 paf 1222: skip_analized=3;
1223: result=LITERAL_TRUE;
1224: goto break2;
1225: }
1226: break;
1227: case 'f':
1228: if(end==begin) // right after whitespace
1.225 misha 1229: if(pc.source[0]=='a' && pc.source[1]=='l' && pc.source[2]=='s' && pc.source[3]=='e') { // false
1.216 paf 1230: skip_analized=4;
1231: result=LITERAL_FALSE;
1232: goto break2;
1233: }
1234: break;
1.48 paf 1235: case ' ': case '\t': case '\n':
1.63 paf 1236: if(end!=begin) { // there were a string after previous operator?
1237: result=0; // return that string
1238: goto break2;
1.48 paf 1239: }
1.63 paf 1240: // that's a leading|traling space or after-operator-space
1241: // ignoring it
1242: // reset piece 'begin' position & line
1.206 paf 1243: begin=pc.source; // after whitespace char
1244: begin_pos=pc.pos;
1.48 paf 1245: continue;
1.1 paf 1246: }
1247: break;
1.194 paf 1248: case LS_EXPRESSION_COMMENT:
1249: if(c=='(')
1250: lexical_brackets_nestage++;
1251:
1.206 paf 1252: switch(*pc.source) {
1.194 paf 1253: case '\n': case ')':
1.206 paf 1254: if(*pc.source==')')
1.194 paf 1255: if(--lexical_brackets_nestage!=0)
1256: continue;
1257:
1258: // skip comment
1.206 paf 1259: begin=pc.source;
1260: begin_pos=pc.pos;
1.194 paf 1261:
1.206 paf 1262: pop_LS(pc);
1.194 paf 1263: continue;
1264: }
1265: break;
1.1 paf 1266:
1.10 paf 1267: // VARIABLE GET/PUT/WITH
1.166 parser 1268: case LS_VAR_NAME_SIMPLE_WITH_COLON:
1269: case LS_VAR_NAME_SIMPLE_WITHOUT_COLON:
1270: case LS_EXPRESSION_VAR_NAME_WITH_COLON:
1271: case LS_EXPRESSION_VAR_NAME_WITHOUT_COLON:
1272: if(
1.206 paf 1273: pc.ls==LS_EXPRESSION_VAR_NAME_WITH_COLON ||
1274: pc.ls==LS_EXPRESSION_VAR_NAME_WITHOUT_COLON) {
1.181 paf 1275: // name in expr ends also before
1.48 paf 1276: switch(c) {
1.181 paf 1277: // expression minus
1.92 paf 1278: case '-':
1.181 paf 1279: // expression integer division
1280: case '\\':
1.206 paf 1281: pop_LS(pc);
1282: pc.ungetc();
1.48 paf 1283: result=EON;
1284: goto break2;
1285: }
1286: }
1.166 parser 1287: if(
1.206 paf 1288: pc.ls==LS_VAR_NAME_SIMPLE_WITHOUT_COLON ||
1289: pc.ls==LS_EXPRESSION_VAR_NAME_WITHOUT_COLON) {
1.142 parser 1290: // name already has ':', stop before next
1291: switch(c) {
1292: case ':':
1.206 paf 1293: pop_LS(pc);
1294: pc.ungetc();
1.142 parser 1295: result=EON;
1296: goto break2;
1297: }
1298: }
1.48 paf 1299: switch(c) {
1300: case 0:
1301: case ' ': case '\t': case '\n':
1302: case ';':
1.126 paf 1303: case ']': case '}': case ')':
1304: case '"': case '\'':
1.139 parser 1305: case '<': case '>': // these stand for HTML brackets AND expression binary ops
1.92 paf 1306: case '+': case '*': case '/': case '%':
1307: case '&': case '|':
1308: case '=': case '!':
1.99 paf 1309: // common delimiters
1.190 paf 1310: case ',': case '?': case '#':
1.220 paf 1311: // mysql column separators
1312: case '`':
1.139 parser 1313: // before call
1314: case '^':
1.206 paf 1315: pop_LS(pc);
1316: pc.ungetc();
1.13 paf 1317: result=EON;
1.1 paf 1318: goto break2;
1.48 paf 1319: case '[':
1.162 parser 1320: // $name.<[>code]
1.206 paf 1321: if(pc.pos.col>1/*not first column*/ && (
1.163 parser 1322: end[-1]=='$'/*was start of get*/ ||
1323: end[-1]==':'/*was class name delim */ ||
1324: end[-1]=='.'/*was name delim */
1.162 parser 1325: )) {
1.206 paf 1326: push_LS(pc, LS_NAME_SQUARE_PART);
1.162 parser 1327: lexical_brackets_nestage=1;
1328: RC;
1329: }
1.206 paf 1330: pc.ls=LS_VAR_SQUARE;
1.1 paf 1331: lexical_brackets_nestage=1;
1.48 paf 1332: RC;
1333: case '{':
1334: if(begin==end) { // ${name}, no need of EON, switching LS
1.206 paf 1335: pc.ls=LS_VAR_NAME_CURLY;
1.48 paf 1336: } else {
1.206 paf 1337: pc.ls=LS_VAR_CURLY;
1.48 paf 1338: lexical_brackets_nestage=1;
1339: }
1.69 paf 1340:
1.48 paf 1341: RC;
1342: case '(':
1.206 paf 1343: pc.ls=LS_VAR_ROUND;
1.1 paf 1344: lexical_brackets_nestage=1;
1.48 paf 1345: RC;
1346: case '.': // name part delim
1347: case '$': // name part subvar
1.160 parser 1348: case ':': // class<:>name
1.166 parser 1349: // go to _WITHOUT_COLON state variant...
1.206 paf 1350: if(pc.ls==LS_VAR_NAME_SIMPLE_WITH_COLON)
1351: pc.ls=LS_VAR_NAME_SIMPLE_WITHOUT_COLON;
1352: else if(pc.ls==LS_EXPRESSION_VAR_NAME_WITH_COLON)
1353: pc.ls=LS_EXPRESSION_VAR_NAME_WITHOUT_COLON;
1.166 parser 1354: // ...stop before next ':'
1.48 paf 1355: RC;
1.1 paf 1356: }
1357: break;
1.48 paf 1358:
1.1 paf 1359: case LS_VAR_NAME_CURLY:
1.48 paf 1360: switch(c) {
1.162 parser 1361: case '[':
1.166 parser 1362: // ${name.<[>code]}
1.206 paf 1363: push_LS(pc, LS_NAME_SQUARE_PART);
1.160 parser 1364: lexical_brackets_nestage=1;
1365: RC;
1.48 paf 1366: case '}': // ${name} finished, restoring LS
1.206 paf 1367: pop_LS(pc);
1.48 paf 1368: RC;
1369: case '.': // name part delim
1370: case '$': // name part subvar
1371: case ':': // ':name' or 'class:name'
1372: RC;
1.1 paf 1373: }
1374: break;
1.48 paf 1375:
1376: case LS_VAR_SQUARE:
1377: switch(c) {
1378: case '$':
1.206 paf 1379: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1380: RC;
1381: case '^':
1.206 paf 1382: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1383: RC;
1384: case ']':
1.1 paf 1385: if(--lexical_brackets_nestage==0) {
1.206 paf 1386: pop_LS(pc);
1.48 paf 1387: RC;
1.1 paf 1388: }
1.48 paf 1389: break;
1390: case ';': // operator_or_fmt;value delim
1391: RC;
1392: case '[':
1393: lexical_brackets_nestage++;
1394: break;
1.1 paf 1395: }
1396: break;
1.48 paf 1397:
1.1 paf 1398: case LS_VAR_CURLY:
1.48 paf 1399: switch(c) {
1400: case '$':
1.206 paf 1401: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1402: RC;
1403: case '^':
1.206 paf 1404: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1405: RC;
1406: case '}':
1.1 paf 1407: if(--lexical_brackets_nestage==0) {
1.206 paf 1408: pop_LS(pc);
1.48 paf 1409: RC;
1.1 paf 1410: }
1.48 paf 1411: break;
1412: case '{':
1.1 paf 1413: lexical_brackets_nestage++;
1.48 paf 1414: break;
1415: }
1.1 paf 1416: break;
1417:
1.10 paf 1418: // METHOD CALL
1.1 paf 1419: case LS_METHOD_NAME:
1.48 paf 1420: switch(c) {
1421: case '[':
1.166 parser 1422: // ^name.<[>code].xxx
1.206 paf 1423: if(pc.pos.col>1/*not first column*/ && (
1.163 parser 1424: end[-1]=='^'/*was start of call*/ || // never, ^[ is literal...
1425: end[-1]==':'/*was class name delim */ ||
1426: end[-1]=='.'/*was name delim */
1.162 parser 1427: )) {
1.206 paf 1428: push_LS(pc, LS_NAME_SQUARE_PART);
1.162 parser 1429: lexical_brackets_nestage=1;
1430: RC;
1431: }
1.206 paf 1432: pc.ls=LS_METHOD_SQUARE;
1.1 paf 1433: lexical_brackets_nestage=1;
1.48 paf 1434: RC;
1435: case '{':
1.206 paf 1436: pc.ls=LS_METHOD_CURLY;
1.1 paf 1437: lexical_brackets_nestage=1;
1.48 paf 1438: RC;
1.69 paf 1439: case '(':
1.206 paf 1440: pc.ls=LS_METHOD_ROUND;
1.69 paf 1441: lexical_brackets_nestage=1;
1442: RC;
1.48 paf 1443: case '.': // name part delim
1444: case '$': // name part subvar
1445: case ':': // ':name' or 'class:name'
1.170 parser 1446: case '^': // ^abc^xxx wrong. bailing out
1447: case ']': case '}': case ')': // ^abc]}) wrong. bailing out
1.207 paf 1448: case ' ': // ^if ( wrong. bailing out
1.48 paf 1449: RC;
1.1 paf 1450: }
1451: break;
1.48 paf 1452:
1453: case LS_METHOD_SQUARE:
1454: switch(c) {
1455: case '$':
1.206 paf 1456: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1457: RC;
1458: case '^':
1.206 paf 1459: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1460: RC;
1461: case ';': // param delim
1462: RC;
1463: case ']':
1.1 paf 1464: if(--lexical_brackets_nestage==0) {
1.206 paf 1465: pc.ls=LS_METHOD_AFTER;
1.48 paf 1466: RC;
1.1 paf 1467: }
1.48 paf 1468: break;
1469: case '[':
1.1 paf 1470: lexical_brackets_nestage++;
1.48 paf 1471: break;
1472: }
1.1 paf 1473: break;
1.48 paf 1474:
1.1 paf 1475: case LS_METHOD_CURLY:
1.48 paf 1476: switch(c) {
1477: case '$':
1.206 paf 1478: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1479: RC;
1480: case '^':
1.206 paf 1481: push_LS(pc, LS_METHOD_NAME);
1.94 paf 1482: RC;
1483: case ';': // param delim
1.48 paf 1484: RC;
1485: case '}':
1.1 paf 1486: if(--lexical_brackets_nestage==0) {
1.206 paf 1487: pc.ls=LS_METHOD_AFTER;
1.48 paf 1488: RC;
1.1 paf 1489: }
1.48 paf 1490: break;
1491: case '{':
1.1 paf 1492: lexical_brackets_nestage++;
1.48 paf 1493: break;
1494: }
1.209 paf 1495: if(pc.explicit_result && c)
1496: switch(c) {
1497: case '\n': case ' ': case '\t':
1498: begin=pc.source;
1499: begin_pos=pc.pos;
1500: continue; // skip it
1501: default:
1502: result=BAD_NONWHITESPACE_CHARACTER_IN_EXPLICIT_RESULT_MODE;
1503: goto break2;
1504: }
1.1 paf 1505: break;
1.48 paf 1506:
1.1 paf 1507: case LS_METHOD_AFTER:
1.69 paf 1508: if(c=='[') {/* ][ }[ )[ */
1.206 paf 1509: pc.ls=LS_METHOD_SQUARE;
1.1 paf 1510: lexical_brackets_nestage=1;
1.48 paf 1511: RC;
1.1 paf 1512: }
1.69 paf 1513: if(c=='{') {/* ]{ }{ ){ */
1.206 paf 1514: pc.ls=LS_METHOD_CURLY;
1.69 paf 1515: lexical_brackets_nestage=1;
1516: RC;
1517: }
1518: if(c=='(') {/* ]( }( )( */
1.206 paf 1519: pc.ls=LS_METHOD_ROUND;
1.1 paf 1520: lexical_brackets_nestage=1;
1.48 paf 1521: RC;
1.1 paf 1522: }
1.206 paf 1523: pop_LS(pc);
1524: pc.ungetc();
1.13 paf 1525: result=EON;
1.1 paf 1526: goto break2;
1527: }
1.9 paf 1528: if(c==0) {
1.1 paf 1529: result=-1;
1530: break;
1531: }
1532: }
1533:
1534: break2:
1.59 paf 1535: if(end!=begin) { // there is last piece?
1536: if((c=='@' || c==0) && end[-1]=='\n') { // we are before LS_DEF_NAME or EOF?
1537: // strip last \n
1.10 paf 1538: end--;
1.137 parser 1539: if(end!=begin && end[-1]=='\n') // allow one empty line before LS_DEF_NAME
1540: end--;
1.59 paf 1541: }
1.206 paf 1542: if(end!=begin && pc.ls!=LS_USER_COMMENT) { // last piece still alive and not comment?
1543: if(!pc.string_start)
1544: pc.string_start=begin_pos;
1.59 paf 1545: // append it
1.206 paf 1546: pc.string.append_strdup_know_length(begin, end-begin);
1.30 paf 1547: }
1.59 paf 1548: }
1.206 paf 1549: if(!pc.string.is_empty()) { // something accumulated?
1550: // create STRING value: array of OP_VALUE+origin+vstring
1551: *lvalp=VL(
1552: new VString(*new String(pc.string, String::L_CLEAN)),
1553: pc.file_no, pc.string_start.line, pc.string_start.col);
1.10 paf 1554: // new pieces storage
1.206 paf 1555: pc.string.clear();
1556: pc.string_start.clear();
1.58 paf 1557: // make current result be pending for next call, return STRING for now
1.206 paf 1558: pc.pending_state=result; result=STRING;
1.58 paf 1559: }
1.67 paf 1560: if(skip_analized) {
1.206 paf 1561: pc.source+=skip_analized; pc.pos.col+=skip_analized;
1.1 paf 1562: }
1.58 paf 1563: return result;
1.1 paf 1564: }
1565:
1.206 paf 1566: static int real_yyerror(Parse_control *pc, char *s) { // Called by yyparse on error
1.114 paf 1567: strncpy(PC.error, s, MAX_STRING);
1.1 paf 1568: return 1;
1.110 paf 1569: }
1.1 paf 1570:
1.110 paf 1571: static void yyprint(FILE *file, int type, YYSTYPE value) {
1572: if(type==STRING)
1.206 paf 1573: fprintf(file, " \"%s\"", LA2S(*value)->cstr());
1.110 paf 1574: }
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