Annotation of parser3/src/main/compile.y, revision 1.246
1.168 parser 1: %{
1.105 paf 2: /** @file
1.106 paf 3: Parser: compiler(lexical parser and grammar).
4:
1.239 misha 5: Copyright (c) 2001-2009 ArtLebedev Group (http://www.artlebedev.com)
1.168 parser 6: Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf)
1.217 paf 7:
1.246 ! misha 8: $Id: compile.y,v 1.245 2009-06-04 09:31:37 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: $$=N();
321: YYSTYPE code=$1;
1.245 misha 322:
1.235 misha 323: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
1.239 misha 324: if(!maybe_change_first_opcode(*code, OP::OP_VALUE__GET_ELEMENT, /*=>*/OP::OP_VALUE__GET_ELEMENT__WRITE))
1.238 misha 325: #endif
1.246 ! misha 326: {
! 327: size_t count=code->count();
1.245 misha 328: #ifdef OPTIMIZE_BYTECODE_GET_SELF_ELEMENT
1.246 ! misha 329: if(
! 330: count!=3
! 331: || !maybe_change_first_opcode(*code, OP::OP_WITH_SELF__VALUE__GET_ELEMENT, /*=>*/OP::OP_WITH_SELF__VALUE__GET_ELEMENT__WRITE)
! 332: )
1.245 misha 333: #endif
334:
1.239 misha 335: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_ELEMENT
1.244 misha 336: if(
1.246 ! misha 337: count!=5
1.244 misha 338: || !maybe_change_first_opcode(*code, OP::OP_GET_OBJECT_ELEMENT, /*=>*/OP::OP_GET_OBJECT_ELEMENT__WRITE)
339: )
1.239 misha 340: #endif
341:
342: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_VAR_ELEMENT
1.244 misha 343: if(
1.246 ! misha 344: count!=5
1.244 misha 345: || !maybe_change_first_opcode(*code, OP::OP_GET_OBJECT_VAR_ELEMENT, /*=>*/OP::OP_GET_OBJECT_VAR_ELEMENT__WRITE)
346: )
1.238 misha 347: #endif
1.244 misha 348: {
1.246 ! misha 349: changetail_or_append(*code,
1.244 misha 350: OP::OP_GET_ELEMENT, false, /*=>*/OP::OP_GET_ELEMENT__WRITE,
351: /*or */OP::OP_WRITE_VALUE
352: ); /* value=pop; wcontext.write(value) */
353: }
1.246 ! misha 354: }
1.238 misha 355: P(*$$, *code);
1.1 paf 356: };
1.163 parser 357: get_value: '$' get_name_value { $$=$2 };
1.64 paf 358: get_name_value: name_without_curly_rdive EON | name_in_curly_rdive;
1.1 paf 359: name_in_curly_rdive: '{' name_without_curly_rdive '}' { $$=$2 };
1.44 paf 360: name_without_curly_rdive:
361: name_without_curly_rdive_read
362: | name_without_curly_rdive_class;
1.19 paf 363: name_without_curly_rdive_read: name_without_curly_rdive_code {
1.206 paf 364: $$=N();
1.238 misha 365: YYSTYPE diving_code=$1;
1.206 paf 366: const String* first_name=LA2S(*diving_code);
1.239 misha 367: size_t count=diving_code->count();
1.238 misha 368: // self.xxx... => xxx...
1.206 paf 369: // OP_VALUE+origin+string+OP_GET_ELEMENT+... -> OP_WITH_SELF+...
1.85 paf 370: if(first_name && *first_name==SELF_ELEMENT_NAME) {
1.245 misha 371: #ifdef OPTIMIZE_BYTECODE_GET_SELF_ELEMENT
372: if(maybe_make_with_self_get_element(*$$, *diving_code, count)){
373: // optimization for $self.field and ^self.method
374: } else
375: #endif
376: {
377: O(*$$, OP::OP_WITH_SELF); /* stack: starting context */
378: P(*$$, *diving_code,
379: /* skip over... */
380: count>=4?4/*OP_VALUE+origin+string+OP_GET_ELEMENTx*/:3/*OP::OP_+origin+string*/);
381: }
1.239 misha 382: }
383:
384: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_ELEMENT
1.240 misha 385: else if(maybe_make_get_object_element(*$$, *diving_code, count)){
1.245 misha 386: // optimization for $object.field + ^object.method[
1.239 misha 387: }
1.238 misha 388: #endif
1.239 misha 389:
390: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_VAR_ELEMENT
1.240 misha 391: else if(maybe_make_get_object_var_element(*$$, *diving_code, count)){
1.245 misha 392: // optimization for $object.$var
1.239 misha 393: }
1.238 misha 394: #endif
1.239 misha 395:
396: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
397: else if(count==4){ // optimization
398: O(*$$,
399: (PC.in_call_value)
400: ? OP::OP_VALUE__GET_ELEMENT_OR_OPERATOR // ^object[ : OP_VALUE+origin+string+OP_GET_ELEMENT => OP_VALUE__GET_ELEMENT_OR_OPERATOR+origin+string
401: : OP::OP_VALUE__GET_ELEMENT // $object : OP_VALUE+origin+string+OP_GET_ELEMENT => OP_VALUE__GET_ELEMENT+origin+string
402: );
403: P(*$$, *diving_code, 1/*offset*/, 2/*limit*/); // copy origin+value
404: } else {
405: O(*$$, OP::OP_WITH_READ); /* stack: starting context */
406: P(*$$, *diving_code);
407: }
1.233 misha 408: #else
1.239 misha 409: else {
1.238 misha 410: O(*$$, OP::OP_WITH_READ); /* stack: starting context */
1.179 paf 411:
1.238 misha 412: // ^if OP_ELEMENT => ^if OP_ELEMENT_OR_OPERATOR
413: // optimized OP_VALUE+origin+string+OP_GET_ELEMENT. => OP_VALUE+origin+string+OP_GET_ELEMENT_OR_OPERATOR.
1.239 misha 414: if(PC.in_call_value && count==4)
415: diving_code->put(count-1, OP::OP_GET_ELEMENT_OR_OPERATOR);
1.206 paf 416: P(*$$, *diving_code);
1.239 misha 417: }
1.233 misha 418: #endif
1.22 paf 419: /* diving code; stack: current context */
1.1 paf 420: };
1.206 paf 421: name_without_curly_rdive_class: class_prefix name_without_curly_rdive_code { $$=$1; P(*$$, *$2) };
422: name_without_curly_rdive_code: name_advance2 | name_path name_advance2 { $$=$1; P(*$$, *$2) };
1.1 paf 423:
424: /* put */
425:
1.81 paf 426: put: '$' name_expr_wdive construct {
1.241 misha 427: $$=N();
1.244 misha 428: #ifdef OPTIMIZE_BYTECODE_CONSTRUCT
429: if(maybe_optimize_construct(*$$, *$2, *$3)){
1.246 ! misha 430: // $a(expr), $.a(expr), $a[value], $.a[value], $self.a[value], $self.a(expr)
1.241 misha 431: } else
432: #endif
433: {
434: P(*$$, *$2); /* stack: context,name */
435: P(*$$, *$3); /* stack: context,name,constructor_value */
436: }
1.20 paf 437: };
1.44 paf 438: name_expr_wdive:
1.157 parser 439: name_expr_wdive_root
440: | name_expr_wdive_write
1.44 paf 441: | name_expr_wdive_class;
1.157 parser 442: name_expr_wdive_root: name_expr_dive_code {
1.206 paf 443: $$=N();
1.238 misha 444: YYSTYPE diving_code=$1;
1.206 paf 445: const String* first_name=LA2S(*diving_code);
1.238 misha 446: // $self.xxx... => $xxx...
447: // OP_VALUE+origin+string+OP_GET_ELEMENT+... => OP_WITH_SELF+...
1.85 paf 448: if(first_name && *first_name==SELF_ELEMENT_NAME) {
1.229 misha 449: O(*$$, OP::OP_WITH_SELF); /* stack: starting context */
1.206 paf 450: P(*$$, *diving_code,
1.23 paf 451: /* skip over... */
1.229 misha 452: diving_code->count()>=4?4/*OP::OP_VALUE+origin+string+OP::OP_GET_ELEMENTx*/:3/*OP::OP_+origin+string*/);
1.23 paf 453: } else {
1.229 misha 454: O(*$$, OP::OP_WITH_ROOT); /* stack: starting context */
1.206 paf 455: P(*$$, *diving_code);
1.23 paf 456: }
457: /* diving code; stack: current context */
1.156 parser 458: };
1.157 parser 459: name_expr_wdive_write: '.' name_expr_dive_code {
1.206 paf 460: $$=N();
1.229 misha 461: O(*$$, OP::OP_WITH_WRITE); /* stack: starting context */
1.206 paf 462: P(*$$, *$2); /* diving code; stack: context,name */
1.20 paf 463: };
1.206 paf 464: name_expr_wdive_class: class_prefix name_expr_dive_code { $$=$1; P(*$$, *$2) };
1.20 paf 465:
1.244 misha 466: construct:
1.163 parser 467: construct_square
468: | construct_round
469: | construct_curly
1.149 parser 470: ;
1.211 paf 471: construct_square: '[' {
472: // allow $result_or_other_variable[ letters here any time ]
473: *reinterpret_cast<bool*>(&$$)=PC.explicit_result; PC.explicit_result=false;
474: } any_constructor_code_value {
1.213 paf 475: PC.explicit_result=*reinterpret_cast<bool*>(&$2);
1.211 paf 476: } ']' {
1.149 parser 477: // stack: context, name
1.211 paf 478: $$=$3; // stack: context, name, value
1.229 misha 479: O(*$$, OP::OP_CONSTRUCT_VALUE); /* value=pop; name=pop; context=pop; construct(context,name,value) */
1.81 paf 480: }
481: ;
1.149 parser 482: construct_round: '(' expr_value ')' {
1.206 paf 483: $$=N();
1.229 misha 484: O(*$$, OP::OP_PREPARE_TO_EXPRESSION);
1.149 parser 485: // stack: context, name
1.206 paf 486: P(*$$, *$2); // stack: context, name, value
1.229 misha 487: O(*$$, OP::OP_CONSTRUCT_EXPR); /* value=pop->as_expr_result; name=pop; context=pop; construct(context,name,value) */
1.81 paf 488: }
1.52 paf 489: ;
1.149 parser 490: construct_curly: '{' maybe_codes '}' {
491: // stack: context, name
1.206 paf 492: $$=N();
1.229 misha 493: OA(*$$, OP::OP_CURLY_CODE__CONSTRUCT, $2); /* code=pop; name=pop; context=pop; construct(context,name,junction(code)) */
1.149 parser 494: };
495:
1.55 paf 496: any_constructor_code_value:
1.157 parser 497: void_value /* optimized $var[] case */
1.52 paf 498: | STRING /* optimized $var[STRING] case */
1.55 paf 499: | constructor_code_value /* $var[something complex] */
1.1 paf 500: ;
1.55 paf 501: constructor_code_value: constructor_code {
1.206 paf 502: $$=N();
1.229 misha 503: OA(*$$, OP::OP_OBJECT_POOL, $1); /* stack: empty write context */
1.183 paf 504: /* some code that writes to that context */
505: /* context=pop; stack: context.value() */
1.1 paf 506: };
1.55 paf 507: constructor_code: codes__excluding_sole_str_literal;
1.206 paf 508: codes__excluding_sole_str_literal: action | code codes { $$=$1; P(*$$, *$2) };
1.27 paf 509:
1.1 paf 510: /* call */
511:
1.66 paf 512: call: call_value {
1.238 misha 513: #ifdef OPTIMIZE_BYTECODE_CUT_REM_OPERATOR
514: if((*$1).count())
515: #endif
516: {
517: $$=$1; /* stack: value */
518: changetail_or_append(*$$,
519: OP::OP_CALL, true, /*=>*/ OP::OP_CALL__WRITE,
520: /*or */OP::OP_WRITE_VALUE); /* value=pop; wcontext.write(value) */
521: }
1.66 paf 522: };
1.177 paf 523: call_value: '^' {
1.180 paf 524: PC.in_call_value=true;
1.177 paf 525: }
526: call_name {
1.180 paf 527: PC.in_call_value=false;
1.177 paf 528: }
1.154 parser 529: store_params EON { /* ^field.$method{vasya} */
1.238 misha 530: #ifdef OPTIMIZE_BYTECODE_CUT_REM_OPERATOR
1.242 misha 531: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
1.238 misha 532: const String* operator_name=LA2S(*$3, 0, OP::OP_VALUE__GET_ELEMENT_OR_OPERATOR);
1.242 misha 533: #else
534: const String* operator_name=LA2S(*$3, 1);
535: #endif
1.238 misha 536: if(operator_name && *operator_name == REM_OPERATOR_NAME){
537: $$=N();
538: } else
539: #endif
540: {
541: $$=$3; /* with_xxx,diving code; stack: context,method_junction */
1.123 paf 542:
1.238 misha 543: YYSTYPE params_code=$5;
544: if(params_code->count()==3) { // probably [] case. [OP::OP_VALUE+origin+Void]
545: if(Value* value=LA2V(*params_code)) // it is OP_VALUE+origin+value?
546: if(value->is_void()) // value is VVoid?
547: params_code=0; // ^zzz[] case. don't append lone empty param.
548: }
549: /* stack: context, method_junction */
550: OA(*$$, OP::OP_CALL, params_code); // method_frame=make frame(pop junction); ncontext=pop; call(ncontext,method_frame) stack: value
551: }
1.1 paf 552: };
553:
1.43 paf 554: call_name: name_without_curly_rdive;
1.38 paf 555:
1.206 paf 556: store_params: store_param | store_params store_param { $$=$1; P(*$$, *$2) };
1.69 paf 557: store_param:
558: store_square_param
559: | store_round_param
560: | store_curly_param
1.31 paf 561: ;
1.210 paf 562: store_square_param: '[' {
1.211 paf 563: // allow ^call[ letters here any time ]
1.210 paf 564: *reinterpret_cast<bool*>(&$$)=PC.explicit_result; PC.explicit_result=false;
565: } store_code_param_parts {
1.213 paf 566: PC.explicit_result=*reinterpret_cast<bool*>(&$2);
1.210 paf 567: } ']' {$$=$3};
1.69 paf 568: store_round_param: '(' store_expr_param_parts ')' {$$=$2};
1.94 paf 569: store_curly_param: '{' store_curly_param_parts '}' {$$=$2};
1.69 paf 570: store_code_param_parts:
571: store_code_param_part
1.206 paf 572: | store_code_param_parts ';' store_code_param_part { $$=$1; P(*$$, *$3) }
1.69 paf 573: ;
574: store_expr_param_parts:
575: store_expr_param_part
1.206 paf 576: | store_expr_param_parts ';' store_expr_param_part { $$=$1; P(*$$, *$3) }
1.69 paf 577: ;
1.94 paf 578: store_curly_param_parts:
579: store_curly_param_part
1.206 paf 580: | store_curly_param_parts ';' store_curly_param_part { $$=$1; P(*$$, *$3) }
1.94 paf 581: ;
1.120 paf 582: store_code_param_part: code_param_value {
1.32 paf 583: $$=$1;
1.120 paf 584: };
1.214 paf 585: store_expr_param_part: expr_value {
586: YYSTYPE expr_code=$1;
1.215 paf 587: if(expr_code->count()==3
1.234 misha 588: && (*expr_code)[0].code==OP::OP_VALUE) { // optimizing (double/bool/incidently 'string' too) case. [OP::OP_VALUE+origin+Double]. no evaluating
1.214 paf 589: $$=expr_code;
590: } else {
1.238 misha 591: YYSTYPE code=N();
1.229 misha 592: O(*code, OP::OP_PREPARE_TO_EXPRESSION);
1.214 paf 593: P(*code, *expr_code);
1.229 misha 594: O(*code, OP::OP_WRITE_EXPR_RESULT);
1.214 paf 595: $$=N();
1.229 misha 596: OA(*$$, OP::OP_EXPR_CODE__STORE_PARAM, code);
1.214 paf 597: }
1.69 paf 598: };
1.94 paf 599: store_curly_param_part: maybe_codes {
1.206 paf 600: $$=N();
1.229 misha 601: OA(*$$, OP::OP_CURLY_CODE__STORE_PARAM, $1);
1.94 paf 602: };
1.120 paf 603: code_param_value:
1.157 parser 604: void_value /* optimized [;...] case */
1.120 paf 605: | STRING /* optimized [STRING] case */
606: | constructor_code_value /* [something complex] */
607: ;
1.1 paf 608:
609: /* name */
610:
1.206 paf 611: name_expr_dive_code: name_expr_value | name_path name_expr_value { $$=$1; P(*$$, *$2) };
1.1 paf 612:
1.206 paf 613: name_path: name_step | name_path name_step { $$=$1; P(*$$, *$2) };
1.1 paf 614: name_step: name_advance1 '.';
615: name_advance1: name_expr_value {
1.177 paf 616: // we know that name_advance1 not called from ^xxx context
617: // so we'll not check for operator call possibility as we do in name_advance2
618:
1.1 paf 619: /* stack: context */
620: $$=$1; /* stack: context,name */
1.229 misha 621: O(*$$, OP::OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */
1.1 paf 622: };
623: name_advance2: name_expr_value {
624: /* stack: context */
625: $$=$1; /* stack: context,name */
1.229 misha 626: O(*$$, OP::OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */
1.1 paf 627: }
1.4 paf 628: | STRING BOGUS
1.1 paf 629: ;
630: name_expr_value:
1.4 paf 631: STRING /* subname_is_const */
1.1 paf 632: | name_expr_subvar_value /* $subname_is_var_value */
1.160 parser 633: | name_expr_with_subvar_value /* xxx$part_of_subname_is_var_value */
1.166 parser 634: | name_square_code_value /* [codes] */
1.1 paf 635: ;
636: name_expr_subvar_value: '$' subvar_ref_name_rdive {
637: $$=$2;
1.229 misha 638: O(*$$, OP::OP_GET_ELEMENT);
1.1 paf 639: };
1.4 paf 640: name_expr_with_subvar_value: STRING subvar_get_writes {
1.238 misha 641: YYSTYPE code;
1.183 paf 642: {
1.206 paf 643: change_string_literal_to_write_string_literal(*(code=$1));
644: P(*code, *$2);
1.183 paf 645: }
1.206 paf 646: $$=N();
1.229 misha 647: OA(*$$, OP::OP_STRING_POOL, code);
1.1 paf 648: };
1.212 paf 649: name_square_code_value: '[' {
650: // allow $result_or_other_variable[ letters here any time ]
651: *reinterpret_cast<bool*>(&$$)=PC.explicit_result; PC.explicit_result=false;
652: } codes {
1.213 paf 653: PC.explicit_result=*reinterpret_cast<bool*>(&$2);
1.212 paf 654: } ']' {
1.206 paf 655: $$=N();
1.229 misha 656: OA(*$$, OP::OP_OBJECT_POOL, $3); /* stack: empty write context */
1.183 paf 657: /* some code that writes to that context */
658: /* context=pop; stack: context.value() */
1.160 parser 659: };
1.154 parser 660: subvar_ref_name_rdive: STRING {
1.206 paf 661: $$=N();
1.229 misha 662: O(*$$, OP::OP_WITH_READ);
1.206 paf 663: P(*$$, *$1);
1.1 paf 664: };
1.206 paf 665: subvar_get_writes: subvar__get_write | subvar_get_writes subvar__get_write { $$=$1; P(*$$, *$2) };
1.1 paf 666: subvar__get_write: '$' subvar_ref_name_rdive {
667: $$=$2;
1.229 misha 668: O(*$$, OP::OP_GET_ELEMENT__WRITE);
1.42 paf 669: };
670:
1.154 parser 671: class_prefix:
672: class_static_prefix
673: | class_constructor_prefix
674: ;
1.155 parser 675: class_static_prefix: STRING ':' {
676: $$=$1; // stack: class name string
1.206 paf 677: if(*LA2S(*$$) == BASE_NAME) { // pseudo BASE class
678: if(VStateless_class* base=PC.cclass->base_class()) {
679: change_string_literal_value(*$$, base->name());
1.189 paf 680: } else {
681: strcpy(PC.error, "no base class declared");
682: YYERROR;
683: }
684: }
1.233 misha 685: #ifdef OPTIMIZE_BYTECODE_GET_CLASS
1.238 misha 686: // optimized OP_VALUE+origin+string+OP_GET_CLASS => OP_VALUE__GET_CLASS+origin+string
1.245 misha 687: maybe_change_first_opcode(*$$, OP::OP_VALUE, OP::OP_VALUE__GET_CLASS)
1.233 misha 688: #else
1.229 misha 689: O(*$$, OP::OP_GET_CLASS);
1.233 misha 690: #endif
1.155 parser 691: };
692: class_constructor_prefix: class_static_prefix ':' {
1.154 parser 693: $$=$1;
1.180 paf 694: if(!PC.in_call_value) {
1.154 parser 695: strcpy(PC.error, ":: not allowed here");
696: YYERROR;
697: }
1.229 misha 698: O(*$$, OP::OP_PREPARE_TO_CONSTRUCT_OBJECT);
1.1 paf 699: };
700:
1.53 paf 701:
1.56 paf 702: /* expr */
1.53 paf 703:
1.214 paf 704: expr_value: expr;
1.56 paf 705: expr:
1.214 paf 706: double_or_STRING
1.216 paf 707: | true_value
708: | false_value
1.64 paf 709: | get_value
1.66 paf 710: | call_value
1.216 paf 711: | '"' string_inside_quotes_value '"' { $$ = $2 }
712: | '\'' string_inside_quotes_value '\'' { $$ = $2 }
1.60 paf 713: | '(' expr ')' { $$ = $2; }
714: /* stack: operand // stack: @operand */
1.229 misha 715: | '-' expr %prec NUNARY { $$=$2; O(*$$, OP::OP_NEG) }
1.202 paf 716: | '+' expr %prec NUNARY { $$=$2 }
1.229 misha 717: | '~' expr { $$=$2; O(*$$, OP::OP_INV) }
718: | '!' expr { $$=$2; O(*$$, OP::OP_NOT) }
719: | "def" expr { $$=$2; O(*$$, OP::OP_DEF) }
720: | "in" expr { $$=$2; O(*$$, OP::OP_IN) }
721: | "-f" expr { $$=$2; O(*$$, OP::OP_FEXISTS) }
722: | "-d" expr { $$=$2; O(*$$, OP::OP_DEXISTS) }
1.60 paf 723: /* stack: a,b // stack: a@b */
1.229 misha 724: | expr '-' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_SUB) }
725: | expr '+' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_ADD) }
726: | expr '*' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_MUL) }
727: | expr '/' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_DIV) }
728: | expr '%' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_MOD) }
729: | expr '\\' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_INTDIV) }
730: | expr "<<" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_SL) }
731: | expr ">>" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_SR) }
732: | expr '&' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_AND) }
733: | expr '|' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_OR) }
734: | expr "!|" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_XOR) }
735: | expr "&&" expr { $$=$1; OA(*$$, OP::OP_NESTED_CODE, $3); O(*$$, OP::OP_LOG_AND) }
736: | expr "||" expr { $$=$1; OA(*$$, OP::OP_NESTED_CODE, $3); O(*$$, OP::OP_LOG_OR) }
737: | expr "!||" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_LOG_XOR) }
738: | expr '<' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_LT) }
739: | expr '>' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_GT) }
740: | expr "<=" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_LE) }
741: | expr ">=" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_GE) }
742: | expr "==" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_EQ) }
743: | expr "!=" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_NE) }
744: | expr "lt" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_LT) }
745: | expr "gt" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_GT) }
746: | expr "le" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_LE) }
747: | expr "ge" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_GE) }
748: | expr "eq" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_EQ) }
749: | expr "ne" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_NE) }
750: | expr "is" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_IS) }
1.56 paf 751: ;
1.214 paf 752:
753: double_or_STRING: STRING {
1.238 misha 754: // optimized OP_STRING => OP_VALUE for doubles
1.214 paf 755: maybe_change_string_literal_to_double_literal(*($$=$1));
756: };
1.55 paf 757:
1.65 paf 758: string_inside_quotes_value: maybe_codes {
1.238 misha 759: #ifdef OPTIMIZE_BYTECODE_STRING_POOL
760: // it brakes ^if(" 09 "){...}
761: YYSTYPE code=$1;
762: $$=N();
1.239 misha 763: if(code->count()==3 && maybe_change_first_opcode(*code, OP::OP_STRING__WRITE, OP::OP_VALUE)){
1.238 misha 764: // optimized OP_STRING__WRITE+origin+value => OP_VALUE+origin+value without starting OP_STRING_POOL
765: P(*$$, *code);
766: } else {
767: OA(*$$, OP::OP_STRING_POOL, code); /* stack: empty write context */
768: }
769: #else
1.206 paf 770: $$=N();
1.229 misha 771: OA(*$$, OP::OP_STRING_POOL, $1); /* stack: empty write context */
1.238 misha 772: #endif
1.183 paf 773: /* some code that writes to that context */
774: /* context=pop; stack: context.get_string() */
1.53 paf 775: };
1.1 paf 776:
1.27 paf 777: /* basics */
1.1 paf 778:
1.81 paf 779: write_string: STRING {
1.238 misha 780: // optimized OP_STRING+OP_WRITE_VALUE => OP_STRING__WRITE
1.209 paf 781: change_string_literal_to_write_string_literal(*($$=$1))
1.54 paf 782: };
783:
1.216 paf 784: void_value: /* empty */ { $$=VL(/*we know that we will not change it*/const_cast<VVoid*>(&vvoid), 0, 0, 0) }
785: true_value: "true" { $$ = VL(/*we know that we will not change it*/const_cast<VBool*>(&vtrue), 0, 0, 0) }
786: false_value: "false" { $$ = VL(/*we know that we will not change it*/const_cast<VBool*>(&vfalse), 0, 0, 0) }
787:
1.206 paf 788: empty: /* empty */ { $$=N() };
1.1 paf 789:
790: %%
1.105 paf 791: #endif
1.1 paf 792:
793: /*
794: 000$111(2222)00
795: 000$111{3333}00
1.9 paf 796: $,^: push,=0
1.1 paf 797: 1:( { break=pop
798: 2:( ) pop
799: 3:{ } pop
800:
801: 000^111(2222)4444{33333}4000
1.9 paf 802: $,^: push,=0
1.1 paf 803: 1:( { break=pop
804: 2:( )=4
805: 3:{ }=4
806: 4:[^({]=pop
807: */
808:
1.206 paf 809: inline void ungetc(Parse_control& pc, uint last_line_end_col) {
810: pc.source--;
811: if(pc.pos.col==0) {
812: --pc.pos.line; pc.pos.col=last_line_end_col;
813: } else
814: --pc.pos.col;
815:
816: }
817: static int yylex(YYSTYPE *lvalp, void *apc) {
818: register Parse_control& pc=*static_cast<Parse_control*>(apc);
819:
820: #define lexical_brackets_nestage pc.brackets_nestages[pc.ls_sp]
1.48 paf 821: #define RC {result=c; goto break2; }
1.1 paf 822:
1.206 paf 823: register int c;
824: int result;
1.1 paf 825:
1.206 paf 826: if(pc.pending_state) {
827: result=pc.pending_state;
828: pc.pending_state=0;
1.1 paf 829: return result;
830: }
831:
1.206 paf 832: const char *begin=pc.source;
833: Pos begin_pos=pc.pos;
1.91 paf 834: const char *end;
1.67 paf 835: int skip_analized=0;
1.50 paf 836: while(true) {
1.206 paf 837: c=*(end=(pc.source++));
838: // fprintf(stderr, "\nchar: %c %02X; nestage: %d, sp=%d", c, c, lexical_brackets_nestage, pc.sp);
1.1 paf 839:
1.208 paf 840: if(c=='\n')
1.206 paf 841: pc.pos_next_line();
1.208 paf 842: else
1.206 paf 843: pc.pos_next_c(c);
1.208 paf 844: // fprintf(stderr, "\nchar: %c file(%d:%d)", c, pc.pos.line, pc.pos.col);
1.73 paf 845:
1.208 paf 846: if(pc.pos.col==0+1 && c=='@') {
1.206 paf 847: if(pc.ls==LS_DEF_SPECIAL_BODY) {
1.175 paf 848: // @SPECIAL
849: // ...
850: // @<here =
1.206 paf 851: pop_LS(pc); // exiting from LS_DEF_SPECIAL_BODY state
1.175 paf 852: } // continuing checks
1.206 paf 853: if(pc.ls==LS_USER) {
854: push_LS(pc, LS_DEF_NAME);
1.171 parser 855: RC;
1.175 paf 856: } else // @ in first column inside some code [when could that be?]
1.171 parser 857: result=BAD_METHOD_DECL_START;
858: goto break2;
1.209 paf 859: }
860: if(c=='^') {
1.206 paf 861: if(pc.ls==LS_METHOD_AFTER) {
1.203 paf 862: // handle after-method situation
1.206 paf 863: pop_LS(pc);
1.203 paf 864: result=EON;
865: skip_analized=-1; // return to punctuation afterwards to assure it's literality
866: goto break2;
867: }
1.206 paf 868: switch(pc.ls) {
1.169 parser 869: case LS_EXPRESSION_VAR_NAME_WITH_COLON:
870: case LS_EXPRESSION_VAR_NAME_WITHOUT_COLON:
871: case LS_VAR_NAME_SIMPLE_WITH_COLON:
872: case LS_VAR_NAME_SIMPLE_WITHOUT_COLON:
873: case LS_VAR_NAME_CURLY:
874: case LS_METHOD_NAME:
1.194 paf 875: case LS_USER_COMMENT:
1.169 parser 876: case LS_DEF_COMMENT:
877: // no literals in names, please
878: break;
879: default:
1.206 paf 880: switch(*pc.source) {
1.165 parser 881: // ^escaping some punctuators
1.228 misha 882: case '^': case '$': case ';': case '@':
1.126 paf 883: case '(': case ')':
1.48 paf 884: case '[': case ']':
885: case '{': case '}':
1.172 parser 886: case '"': case ':':
1.40 paf 887: if(end!=begin) {
1.206 paf 888: if(!pc.string_start)
889: pc.string_start=begin_pos;
1.40 paf 890: // append piece till ^
1.206 paf 891: pc.string.append_strdup_know_length(begin, end-begin);
1.40 paf 892: }
1.63 paf 893: // reset piece 'begin' position & line
1.206 paf 894: begin=pc.source; // ->punctuation
895: begin_pos=pc.pos;
1.203 paf 896: // skip over _ after ^
1.206 paf 897: pc.source++; pc.pos.col++;
1.203 paf 898: // skip analysis = forced literal
899: continue;
1.114 paf 900:
901: // converting ^#HH into char(hex(HH))
902: case '#':
903: if(end!=begin) {
1.206 paf 904: if(!pc.string_start)
905: pc.string_start=begin_pos;
1.114 paf 906: // append piece till ^
1.206 paf 907: pc.string.append_strdup_know_length(begin, end-begin);
1.114 paf 908: }
909: // #HH ?
1.228 misha 910: if(pc.source[1] && isxdigit(pc.source[1]) && pc.source[2] && isxdigit(pc.source[2])) {
1.218 paf 911: char c=(char)(
1.206 paf 912: hex_value[(unsigned char)pc.source[1]]*0x10+
1.218 paf 913: hex_value[(unsigned char)pc.source[2]]);
1.206 paf 914: if(c==0) {
1.114 paf 915: result=BAD_HEX_LITERAL;
916: goto break2; // wrong hex value[no ^#00 chars allowed]: bail out
917: }
918: // append char(hex(HH))
1.206 paf 919: pc.string.append(c);
1.114 paf 920: // skip over ^#HH
1.206 paf 921: pc.source+=3;
922: pc.pos.col+=3;
1.114 paf 923: // reset piece 'begin' position & line
1.206 paf 924: begin=pc.source; // ->after ^#HH
925: begin_pos=pc.pos;
1.203 paf 926: // skip analysis = forced literal
1.114 paf 927: continue;
928: }
1.228 misha 929: // just escaped char
930: // reset piece 'begin' position & line
931: begin=pc.source;
932: begin_pos=pc.pos;
933: // skip over _ after ^
934: pc.source++; pc.pos.col++;
935: // skip analysis = forced literal
936: continue;
1.1 paf 937: }
1.169 parser 938: break;
1.203 paf 939: }
1.169 parser 940: }
1.113 paf 941: // #comment start skipping
1.206 paf 942: if(c=='#' && pc.pos.col==1) {
1.112 paf 943: if(end!=begin) {
1.206 paf 944: if(!pc.string_start)
945: pc.string_start=begin_pos;
1.112 paf 946: // append piece till #
1.206 paf 947: pc.string.append_strdup_know_length(begin, end-begin);
1.112 paf 948: }
949: // fall into COMMENT lexical state [wait for \n]
1.206 paf 950: push_LS(pc, LS_USER_COMMENT);
1.175 paf 951: continue;
1.112 paf 952: }
1.206 paf 953: switch(pc.ls) {
1.10 paf 954:
955: // USER'S = NOT OURS
1.1 paf 956: case LS_USER:
1.206 paf 957: case LS_NAME_SQUARE_PART: // name.[here].xxx
958: if(pc.trim_bof)
1.153 parser 959: switch(c) {
960: case '\n': case ' ': case '\t':
1.206 paf 961: begin=pc.source;
962: begin_pos=pc.pos;
1.152 parser 963: continue; // skip it
1.153 parser 964: default:
1.206 paf 965: pc.trim_bof=false;
1.152 parser 966: }
1.48 paf 967: switch(c) {
968: case '$':
1.206 paf 969: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 970: RC;
971: case '^':
1.206 paf 972: push_LS(pc, LS_METHOD_NAME);
1.48 paf 973: RC;
1.166 parser 974: case ']':
1.206 paf 975: if(pc.ls==LS_NAME_SQUARE_PART)
1.166 parser 976: if(--lexical_brackets_nestage==0) {// $name.[co<]?>de<]?>
1.206 paf 977: pop_LS(pc); // $name.[co<]>de<]!>
1.166 parser 978: RC;
979: }
1.160 parser 980: break;
1.166 parser 981: case '[': // $name.[co<[>de]
1.206 paf 982: if(pc.ls==LS_NAME_SQUARE_PART)
1.166 parser 983: lexical_brackets_nestage++;
1.161 parser 984: break;
1.112 paf 985: }
1.209 paf 986: if(pc.explicit_result && c)
987: switch(c) {
988: case '\n': case ' ': case '\t':
989: begin=pc.source;
990: begin_pos=pc.pos;
991: continue; // skip it
992: default:
993: result=BAD_NONWHITESPACE_CHARACTER_IN_EXPLICIT_RESULT_MODE;
994: goto break2;
995: }
1.112 paf 996: break;
997:
998: // #COMMENT
1.194 paf 999: case LS_USER_COMMENT:
1.112 paf 1000: if(c=='\n') {
1001: // skip comment
1.206 paf 1002: begin=pc.source;
1003: begin_pos=pc.pos;
1.112 paf 1004:
1.206 paf 1005: pop_LS(pc);
1.112 paf 1006: continue;
1.1 paf 1007: }
1.48 paf 1008: break;
1009:
1010: // STRING IN EXPRESSION
1.145 parser 1011: case LS_EXPRESSION_STRING_QUOTED:
1012: case LS_EXPRESSION_STRING_APOSTROFED:
1.48 paf 1013: switch(c) {
1014: case '"':
1.145 parser 1015: case '\'':
1016: if(
1.206 paf 1017: pc.ls == LS_EXPRESSION_STRING_QUOTED && c=='"' ||
1018: pc.ls == LS_EXPRESSION_STRING_APOSTROFED && c=='\'') {
1019: pop_LS(pc); //"abc". | 'abc'.
1.145 parser 1020: RC;
1021: }
1022: break;
1.48 paf 1023: case '$':
1.206 paf 1024: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1025: RC;
1026: case '^':
1.206 paf 1027: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1028: RC;
1.10 paf 1029: }
1030: break;
1031:
1032: // METHOD DEFINITION
1033: case LS_DEF_NAME:
1.48 paf 1034: switch(c) {
1035: case '[':
1.206 paf 1036: pc.ls=LS_DEF_PARAMS;
1.48 paf 1037: RC;
1038: case '\n':
1.206 paf 1039: pc.ls=LS_DEF_SPECIAL_BODY;
1.48 paf 1040: RC;
1.10 paf 1041: }
1042: break;
1.48 paf 1043:
1.10 paf 1044: case LS_DEF_PARAMS:
1.48 paf 1045: switch(c) {
1.192 paf 1046: case '$': // common error
1.193 paf 1047: result=BAD_METHOD_PARAMETER_NAME_CHARACTER;
1048: goto break2;
1.48 paf 1049: case ';':
1050: RC;
1051: case ']':
1.206 paf 1052: pc.ls=*pc.source=='['?LS_DEF_LOCALS:LS_DEF_COMMENT;
1.48 paf 1053: RC;
1.49 paf 1054: case '\n': // wrong. bailing out
1.206 paf 1055: pop_LS(pc);
1.48 paf 1056: RC;
1.10 paf 1057: }
1058: break;
1.48 paf 1059:
1.10 paf 1060: case LS_DEF_LOCALS:
1.48 paf 1061: switch(c) {
1062: case '[':
1063: case ';':
1064: RC;
1065: case ']':
1.206 paf 1066: pc.ls=LS_DEF_COMMENT;
1.48 paf 1067: RC;
1068: case '\n': // wrong. bailing out
1.206 paf 1069: pop_LS(pc);
1.48 paf 1070: RC;
1.10 paf 1071: }
1072: break;
1.48 paf 1073:
1.10 paf 1074: case LS_DEF_COMMENT:
1075: if(c=='\n') {
1.206 paf 1076: pop_LS(pc);
1.48 paf 1077: RC;
1.37 paf 1078: }
1079: break;
1080:
1.48 paf 1081: case LS_DEF_SPECIAL_BODY:
1.175 paf 1082: if(c=='\n')
1.48 paf 1083: RC;
1084: break;
1085:
1086: // (EXPRESSION)
1.69 paf 1087: case LS_VAR_ROUND:
1088: case LS_METHOD_ROUND:
1.48 paf 1089: switch(c) {
1090: case ')':
1091: if(--lexical_brackets_nestage==0)
1.206 paf 1092: if(pc.ls==LS_METHOD_ROUND) // method round param ended
1093: pc.ls=LS_METHOD_AFTER; // look for method end
1094: else // pc.ls==LS_VAR_ROUND // variable constructor ended
1095: pop_LS(pc); // return to normal life
1.48 paf 1096: RC;
1.194 paf 1097: case '#': // comment start skipping
1098: if(end!=begin) {
1.206 paf 1099: if(!pc.string_start)
1100: pc.string_start=begin_pos;
1.194 paf 1101: // append piece till #
1.206 paf 1102: pc.string.append_strdup_know_length(begin, end-begin);
1.194 paf 1103: }
1104: // fall into COMMENT lexical state [wait for \n]
1.206 paf 1105: push_LS(pc, LS_EXPRESSION_COMMENT);
1.194 paf 1106: lexical_brackets_nestage=1;
1107: continue;
1.48 paf 1108: case '$':
1.206 paf 1109: push_LS(pc, LS_EXPRESSION_VAR_NAME_WITH_COLON);
1.48 paf 1110: RC;
1111: case '^':
1.206 paf 1112: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1113: RC;
1114: case '(':
1115: lexical_brackets_nestage++;
1116: RC;
1.67 paf 1117: case '-':
1.206 paf 1118: switch(*pc.source) {
1.127 paf 1119: case 'f': // -f
1.67 paf 1120: skip_analized=1;
1121: result=FEXISTS;
1.127 paf 1122: goto break2;
1123: case 'd': // -d
1124: skip_analized=1;
1125: result=DEXISTS;
1126: goto break2;
1.191 paf 1127: default: // minus
1.67 paf 1128: result=c;
1.127 paf 1129: goto break2;
1130: }
1.67 paf 1131: goto break2;
1.173 paf 1132: case '+': case '*': case '/': case '%': case '\\':
1.58 paf 1133: case '~':
1.48 paf 1134: case ';':
1135: RC;
1.193 paf 1136: case '&': case '|':
1.206 paf 1137: if(*pc.source==c) { // && ||
1.193 paf 1138: result=c=='&'?LAND:LOR;
1.67 paf 1139: skip_analized=1;
1.58 paf 1140: } else
1141: result=c;
1142: goto break2;
1.193 paf 1143: case '!':
1.206 paf 1144: switch(pc.source[0]) {
1.193 paf 1145: case '|': // !| !||
1146: skip_analized=1;
1.206 paf 1147: if(pc.source[1]=='|') {
1.193 paf 1148: skip_analized++;
1149: result=LXOR;
1150: } else
1151: result=NXOR;
1152: goto break2;
1153: case '=': // !=
1154: skip_analized=1;
1155: result=NNE;
1156: goto break2;
1157: }
1158: RC;
1.195 paf 1159:
1160: case '<': // <<, <=, <
1.206 paf 1161: switch(*pc.source) {
1.195 paf 1162: case '<': // <[<]
1163: skip_analized=1; result=NSL; break;
1164: case '=': // <[=]
1165: skip_analized=1; result=NLE; break;
1166: default: // <[]
1167: result=c; break;
1168: }
1169: goto break2;
1170: case '>': // >>, >=, >
1.206 paf 1171: switch(*pc.source) {
1.195 paf 1172: case '>': // >[>]
1173: skip_analized=1; result=NSR; break;
1174: case '=': // >[=]
1175: skip_analized=1; result=NGE; break;
1176: default: // >[]
1177: result=c; break;
1178: }
1179: goto break2;
1180: case '=': // ==
1.206 paf 1181: switch(*pc.source) {
1.195 paf 1182: case '=': // =[=]
1183: skip_analized=1; result=NEQ; break;
1184: default: // =[]
1185: result=c; break; // not used now
1186: }
1.58 paf 1187: goto break2;
1.195 paf 1188:
1.48 paf 1189: case '"':
1.206 paf 1190: push_LS(pc, LS_EXPRESSION_STRING_QUOTED);
1.145 parser 1191: RC;
1192: case '\'':
1.206 paf 1193: push_LS(pc, LS_EXPRESSION_STRING_APOSTROFED);
1.48 paf 1194: RC;
1.50 paf 1195: case 'l': case 'g': case 'e': case 'n':
1.51 paf 1196: if(end==begin) // right after whitespace
1.206 paf 1197: if(isspace(pc.source[1])) {
1198: switch(*pc.source) {
1.117 paf 1199: // case '?': // ok [and bad cases, yacc would bark at them]
1200: case 't': // lt gt [et nt]
1201: result=c=='l'?SLT:c=='g'?SGT:BAD_STRING_COMPARISON_OPERATOR;
1202: skip_analized=1;
1203: goto break2;
1204: case 'e': // le ge ne [ee]
1205: result=c=='l'?SLE:c=='g'?SGE:c=='n'?SNE:BAD_STRING_COMPARISON_OPERATOR;
1206: skip_analized=1;
1207: goto break2;
1208: case 'q': // eq [lq gq nq]
1209: result=c=='e'?SEQ:BAD_STRING_COMPARISON_OPERATOR;
1210: skip_analized=1;
1211: goto break2;
1212: }
1.67 paf 1213: }
1214: break;
1215: case 'i':
1216: if(end==begin) // right after whitespace
1.206 paf 1217: if(isspace(pc.source[1])) {
1218: switch(pc.source[0]) {
1.117 paf 1219: case 'n': // in
1.95 paf 1220: skip_analized=1;
1221: result=IN;
1222: goto break2;
1.117 paf 1223: case 's': // is
1.95 paf 1224: skip_analized=1;
1225: result=IS;
1226: goto break2;
1227: }
1.67 paf 1228: }
1229: break;
1230: case 'd':
1231: if(end==begin) // right after whitespace
1.206 paf 1232: if(pc.source[0]=='e' && pc.source[1]=='f') { // def
1.225 misha 1233: switch(pc.source[2]){
1234: case ' ': case '\t': case '\n': case '"': case '\'': case '^': case '$': // non-quoted string without whitespace after 'def' is not allowed
1235: skip_analized=2;
1236: result=DEF;
1237: goto break2;
1238: }
1239: // error: incorrect char after 'def'
1.50 paf 1240: }
1.48 paf 1241: break;
1.216 paf 1242: case 't':
1243: if(end==begin) // right after whitespace
1.225 misha 1244: if(pc.source[0]=='r' && pc.source[1]=='u' && pc.source[2]=='e') { // true
1.216 paf 1245: skip_analized=3;
1246: result=LITERAL_TRUE;
1247: goto break2;
1248: }
1249: break;
1250: case 'f':
1251: if(end==begin) // right after whitespace
1.225 misha 1252: if(pc.source[0]=='a' && pc.source[1]=='l' && pc.source[2]=='s' && pc.source[3]=='e') { // false
1.216 paf 1253: skip_analized=4;
1254: result=LITERAL_FALSE;
1255: goto break2;
1256: }
1257: break;
1.48 paf 1258: case ' ': case '\t': case '\n':
1.63 paf 1259: if(end!=begin) { // there were a string after previous operator?
1260: result=0; // return that string
1261: goto break2;
1.48 paf 1262: }
1.63 paf 1263: // that's a leading|traling space or after-operator-space
1264: // ignoring it
1265: // reset piece 'begin' position & line
1.206 paf 1266: begin=pc.source; // after whitespace char
1267: begin_pos=pc.pos;
1.48 paf 1268: continue;
1.1 paf 1269: }
1270: break;
1.194 paf 1271: case LS_EXPRESSION_COMMENT:
1272: if(c=='(')
1273: lexical_brackets_nestage++;
1274:
1.206 paf 1275: switch(*pc.source) {
1.194 paf 1276: case '\n': case ')':
1.206 paf 1277: if(*pc.source==')')
1.194 paf 1278: if(--lexical_brackets_nestage!=0)
1279: continue;
1280:
1281: // skip comment
1.206 paf 1282: begin=pc.source;
1283: begin_pos=pc.pos;
1.194 paf 1284:
1.206 paf 1285: pop_LS(pc);
1.194 paf 1286: continue;
1287: }
1288: break;
1.1 paf 1289:
1.10 paf 1290: // VARIABLE GET/PUT/WITH
1.166 parser 1291: case LS_VAR_NAME_SIMPLE_WITH_COLON:
1292: case LS_VAR_NAME_SIMPLE_WITHOUT_COLON:
1293: case LS_EXPRESSION_VAR_NAME_WITH_COLON:
1294: case LS_EXPRESSION_VAR_NAME_WITHOUT_COLON:
1295: if(
1.206 paf 1296: pc.ls==LS_EXPRESSION_VAR_NAME_WITH_COLON ||
1297: pc.ls==LS_EXPRESSION_VAR_NAME_WITHOUT_COLON) {
1.181 paf 1298: // name in expr ends also before
1.48 paf 1299: switch(c) {
1.181 paf 1300: // expression minus
1.92 paf 1301: case '-':
1.181 paf 1302: // expression integer division
1303: case '\\':
1.206 paf 1304: pop_LS(pc);
1305: pc.ungetc();
1.48 paf 1306: result=EON;
1307: goto break2;
1308: }
1309: }
1.166 parser 1310: if(
1.206 paf 1311: pc.ls==LS_VAR_NAME_SIMPLE_WITHOUT_COLON ||
1312: pc.ls==LS_EXPRESSION_VAR_NAME_WITHOUT_COLON) {
1.142 parser 1313: // name already has ':', stop before next
1314: switch(c) {
1315: case ':':
1.206 paf 1316: pop_LS(pc);
1317: pc.ungetc();
1.142 parser 1318: result=EON;
1319: goto break2;
1320: }
1321: }
1.48 paf 1322: switch(c) {
1323: case 0:
1324: case ' ': case '\t': case '\n':
1325: case ';':
1.126 paf 1326: case ']': case '}': case ')':
1327: case '"': case '\'':
1.139 parser 1328: case '<': case '>': // these stand for HTML brackets AND expression binary ops
1.92 paf 1329: case '+': case '*': case '/': case '%':
1330: case '&': case '|':
1331: case '=': case '!':
1.99 paf 1332: // common delimiters
1.190 paf 1333: case ',': case '?': case '#':
1.220 paf 1334: // mysql column separators
1335: case '`':
1.139 parser 1336: // before call
1337: case '^':
1.206 paf 1338: pop_LS(pc);
1339: pc.ungetc();
1.13 paf 1340: result=EON;
1.1 paf 1341: goto break2;
1.48 paf 1342: case '[':
1.162 parser 1343: // $name.<[>code]
1.206 paf 1344: if(pc.pos.col>1/*not first column*/ && (
1.163 parser 1345: end[-1]=='$'/*was start of get*/ ||
1346: end[-1]==':'/*was class name delim */ ||
1347: end[-1]=='.'/*was name delim */
1.162 parser 1348: )) {
1.206 paf 1349: push_LS(pc, LS_NAME_SQUARE_PART);
1.162 parser 1350: lexical_brackets_nestage=1;
1351: RC;
1352: }
1.206 paf 1353: pc.ls=LS_VAR_SQUARE;
1.1 paf 1354: lexical_brackets_nestage=1;
1.48 paf 1355: RC;
1356: case '{':
1357: if(begin==end) { // ${name}, no need of EON, switching LS
1.206 paf 1358: pc.ls=LS_VAR_NAME_CURLY;
1.48 paf 1359: } else {
1.206 paf 1360: pc.ls=LS_VAR_CURLY;
1.48 paf 1361: lexical_brackets_nestage=1;
1362: }
1.69 paf 1363:
1.48 paf 1364: RC;
1365: case '(':
1.206 paf 1366: pc.ls=LS_VAR_ROUND;
1.1 paf 1367: lexical_brackets_nestage=1;
1.48 paf 1368: RC;
1369: case '.': // name part delim
1370: case '$': // name part subvar
1.160 parser 1371: case ':': // class<:>name
1.166 parser 1372: // go to _WITHOUT_COLON state variant...
1.206 paf 1373: if(pc.ls==LS_VAR_NAME_SIMPLE_WITH_COLON)
1374: pc.ls=LS_VAR_NAME_SIMPLE_WITHOUT_COLON;
1375: else if(pc.ls==LS_EXPRESSION_VAR_NAME_WITH_COLON)
1376: pc.ls=LS_EXPRESSION_VAR_NAME_WITHOUT_COLON;
1.166 parser 1377: // ...stop before next ':'
1.48 paf 1378: RC;
1.1 paf 1379: }
1380: break;
1.48 paf 1381:
1.1 paf 1382: case LS_VAR_NAME_CURLY:
1.48 paf 1383: switch(c) {
1.162 parser 1384: case '[':
1.166 parser 1385: // ${name.<[>code]}
1.206 paf 1386: push_LS(pc, LS_NAME_SQUARE_PART);
1.160 parser 1387: lexical_brackets_nestage=1;
1388: RC;
1.48 paf 1389: case '}': // ${name} finished, restoring LS
1.206 paf 1390: pop_LS(pc);
1.48 paf 1391: RC;
1392: case '.': // name part delim
1393: case '$': // name part subvar
1394: case ':': // ':name' or 'class:name'
1395: RC;
1.1 paf 1396: }
1397: break;
1.48 paf 1398:
1399: case LS_VAR_SQUARE:
1400: switch(c) {
1401: case '$':
1.206 paf 1402: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1403: RC;
1404: case '^':
1.206 paf 1405: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1406: RC;
1407: case ']':
1.1 paf 1408: if(--lexical_brackets_nestage==0) {
1.206 paf 1409: pop_LS(pc);
1.48 paf 1410: RC;
1.1 paf 1411: }
1.48 paf 1412: break;
1413: case ';': // operator_or_fmt;value delim
1414: RC;
1415: case '[':
1416: lexical_brackets_nestage++;
1417: break;
1.1 paf 1418: }
1419: break;
1.48 paf 1420:
1.1 paf 1421: case LS_VAR_CURLY:
1.48 paf 1422: switch(c) {
1423: case '$':
1.206 paf 1424: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1425: RC;
1426: case '^':
1.206 paf 1427: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1428: RC;
1429: case '}':
1.1 paf 1430: if(--lexical_brackets_nestage==0) {
1.206 paf 1431: pop_LS(pc);
1.48 paf 1432: RC;
1.1 paf 1433: }
1.48 paf 1434: break;
1435: case '{':
1.1 paf 1436: lexical_brackets_nestage++;
1.48 paf 1437: break;
1438: }
1.1 paf 1439: break;
1440:
1.10 paf 1441: // METHOD CALL
1.1 paf 1442: case LS_METHOD_NAME:
1.48 paf 1443: switch(c) {
1444: case '[':
1.166 parser 1445: // ^name.<[>code].xxx
1.206 paf 1446: if(pc.pos.col>1/*not first column*/ && (
1.163 parser 1447: end[-1]=='^'/*was start of call*/ || // never, ^[ is literal...
1448: end[-1]==':'/*was class name delim */ ||
1449: end[-1]=='.'/*was name delim */
1.162 parser 1450: )) {
1.206 paf 1451: push_LS(pc, LS_NAME_SQUARE_PART);
1.162 parser 1452: lexical_brackets_nestage=1;
1453: RC;
1454: }
1.206 paf 1455: pc.ls=LS_METHOD_SQUARE;
1.1 paf 1456: lexical_brackets_nestage=1;
1.48 paf 1457: RC;
1458: case '{':
1.206 paf 1459: pc.ls=LS_METHOD_CURLY;
1.1 paf 1460: lexical_brackets_nestage=1;
1.48 paf 1461: RC;
1.69 paf 1462: case '(':
1.206 paf 1463: pc.ls=LS_METHOD_ROUND;
1.69 paf 1464: lexical_brackets_nestage=1;
1465: RC;
1.48 paf 1466: case '.': // name part delim
1467: case '$': // name part subvar
1468: case ':': // ':name' or 'class:name'
1.170 parser 1469: case '^': // ^abc^xxx wrong. bailing out
1470: case ']': case '}': case ')': // ^abc]}) wrong. bailing out
1.207 paf 1471: case ' ': // ^if ( wrong. bailing out
1.48 paf 1472: RC;
1.1 paf 1473: }
1474: break;
1.48 paf 1475:
1476: case LS_METHOD_SQUARE:
1477: switch(c) {
1478: case '$':
1.206 paf 1479: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1480: RC;
1481: case '^':
1.206 paf 1482: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1483: RC;
1484: case ';': // param delim
1485: RC;
1486: case ']':
1.1 paf 1487: if(--lexical_brackets_nestage==0) {
1.206 paf 1488: pc.ls=LS_METHOD_AFTER;
1.48 paf 1489: RC;
1.1 paf 1490: }
1.48 paf 1491: break;
1492: case '[':
1.1 paf 1493: lexical_brackets_nestage++;
1.48 paf 1494: break;
1495: }
1.1 paf 1496: break;
1.48 paf 1497:
1.1 paf 1498: case LS_METHOD_CURLY:
1.48 paf 1499: switch(c) {
1500: case '$':
1.206 paf 1501: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1502: RC;
1503: case '^':
1.206 paf 1504: push_LS(pc, LS_METHOD_NAME);
1.94 paf 1505: RC;
1506: case ';': // param delim
1.48 paf 1507: RC;
1508: case '}':
1.1 paf 1509: if(--lexical_brackets_nestage==0) {
1.206 paf 1510: pc.ls=LS_METHOD_AFTER;
1.48 paf 1511: RC;
1.1 paf 1512: }
1.48 paf 1513: break;
1514: case '{':
1.1 paf 1515: lexical_brackets_nestage++;
1.48 paf 1516: break;
1517: }
1.209 paf 1518: if(pc.explicit_result && c)
1519: switch(c) {
1520: case '\n': case ' ': case '\t':
1521: begin=pc.source;
1522: begin_pos=pc.pos;
1523: continue; // skip it
1524: default:
1525: result=BAD_NONWHITESPACE_CHARACTER_IN_EXPLICIT_RESULT_MODE;
1526: goto break2;
1527: }
1.1 paf 1528: break;
1.48 paf 1529:
1.1 paf 1530: case LS_METHOD_AFTER:
1.69 paf 1531: if(c=='[') {/* ][ }[ )[ */
1.206 paf 1532: pc.ls=LS_METHOD_SQUARE;
1.1 paf 1533: lexical_brackets_nestage=1;
1.48 paf 1534: RC;
1.1 paf 1535: }
1.69 paf 1536: if(c=='{') {/* ]{ }{ ){ */
1.206 paf 1537: pc.ls=LS_METHOD_CURLY;
1.69 paf 1538: lexical_brackets_nestage=1;
1539: RC;
1540: }
1541: if(c=='(') {/* ]( }( )( */
1.206 paf 1542: pc.ls=LS_METHOD_ROUND;
1.1 paf 1543: lexical_brackets_nestage=1;
1.48 paf 1544: RC;
1.1 paf 1545: }
1.206 paf 1546: pop_LS(pc);
1547: pc.ungetc();
1.13 paf 1548: result=EON;
1.1 paf 1549: goto break2;
1550: }
1.9 paf 1551: if(c==0) {
1.1 paf 1552: result=-1;
1553: break;
1554: }
1555: }
1556:
1557: break2:
1.59 paf 1558: if(end!=begin) { // there is last piece?
1559: if((c=='@' || c==0) && end[-1]=='\n') { // we are before LS_DEF_NAME or EOF?
1560: // strip last \n
1.10 paf 1561: end--;
1.137 parser 1562: if(end!=begin && end[-1]=='\n') // allow one empty line before LS_DEF_NAME
1563: end--;
1.59 paf 1564: }
1.206 paf 1565: if(end!=begin && pc.ls!=LS_USER_COMMENT) { // last piece still alive and not comment?
1566: if(!pc.string_start)
1567: pc.string_start=begin_pos;
1.59 paf 1568: // append it
1.206 paf 1569: pc.string.append_strdup_know_length(begin, end-begin);
1.30 paf 1570: }
1.59 paf 1571: }
1.206 paf 1572: if(!pc.string.is_empty()) { // something accumulated?
1573: // create STRING value: array of OP_VALUE+origin+vstring
1574: *lvalp=VL(
1575: new VString(*new String(pc.string, String::L_CLEAN)),
1576: pc.file_no, pc.string_start.line, pc.string_start.col);
1.10 paf 1577: // new pieces storage
1.206 paf 1578: pc.string.clear();
1579: pc.string_start.clear();
1.58 paf 1580: // make current result be pending for next call, return STRING for now
1.206 paf 1581: pc.pending_state=result; result=STRING;
1.58 paf 1582: }
1.67 paf 1583: if(skip_analized) {
1.206 paf 1584: pc.source+=skip_analized; pc.pos.col+=skip_analized;
1.1 paf 1585: }
1.58 paf 1586: return result;
1.1 paf 1587: }
1588:
1.206 paf 1589: static int real_yyerror(Parse_control *pc, char *s) { // Called by yyparse on error
1.114 paf 1590: strncpy(PC.error, s, MAX_STRING);
1.1 paf 1591: return 1;
1.110 paf 1592: }
1.1 paf 1593:
1.110 paf 1594: static void yyprint(FILE *file, int type, YYSTYPE value) {
1595: if(type==STRING)
1.206 paf 1596: fprintf(file, " \"%s\"", LA2S(*value)->cstr());
1.110 paf 1597: }
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