Annotation of parser3/src/main/compile.y, revision 1.245
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:
1.245 ! misha 8: $Id: compile.y,v 1.244 2009-06-02 10:08:40 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: $$=N();
321: YYSTYPE code=$1;
1.245 ! misha 322:
1.235 misha 323: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
1.239 misha 324: if(!maybe_change_first_opcode(*code, OP::OP_VALUE__GET_ELEMENT, /*=>*/OP::OP_VALUE__GET_ELEMENT__WRITE))
1.238 misha 325: #endif
1.239 misha 326:
1.245 ! misha 327: #ifdef OPTIMIZE_BYTECODE_GET_SELF_ELEMENT
! 328: if(!maybe_change_first_opcode(*code, OP::OP_WITH_SELF__VALUE__GET_ELEMENT, /*=>*/OP::OP_WITH_SELF__VALUE__GET_ELEMENT__WRITE))
! 329: #endif
! 330:
1.239 misha 331: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_ELEMENT
1.244 misha 332: if(
333: code->count()!=5
334: || !maybe_change_first_opcode(*code, OP::OP_GET_OBJECT_ELEMENT, /*=>*/OP::OP_GET_OBJECT_ELEMENT__WRITE)
335: )
1.239 misha 336: #endif
337:
338: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_VAR_ELEMENT
1.244 misha 339: if(
340: code->count()!=5
341: || !maybe_change_first_opcode(*code, OP::OP_GET_OBJECT_VAR_ELEMENT, /*=>*/OP::OP_GET_OBJECT_VAR_ELEMENT__WRITE)
342: )
1.238 misha 343: #endif
1.244 misha 344: {
345: changetail_or_append(*code,
346: OP::OP_GET_ELEMENT, false, /*=>*/OP::OP_GET_ELEMENT__WRITE,
347: /*or */OP::OP_WRITE_VALUE
348: ); /* value=pop; wcontext.write(value) */
349: }
1.239 misha 350:
1.238 misha 351: P(*$$, *code);
1.1 paf 352: };
1.163 parser 353: get_value: '$' get_name_value { $$=$2 };
1.64 paf 354: get_name_value: name_without_curly_rdive EON | name_in_curly_rdive;
1.1 paf 355: name_in_curly_rdive: '{' name_without_curly_rdive '}' { $$=$2 };
1.44 paf 356: name_without_curly_rdive:
357: name_without_curly_rdive_read
358: | name_without_curly_rdive_class;
1.19 paf 359: name_without_curly_rdive_read: name_without_curly_rdive_code {
1.206 paf 360: $$=N();
1.238 misha 361: YYSTYPE diving_code=$1;
1.206 paf 362: const String* first_name=LA2S(*diving_code);
1.239 misha 363: size_t count=diving_code->count();
1.238 misha 364: // self.xxx... => xxx...
1.206 paf 365: // OP_VALUE+origin+string+OP_GET_ELEMENT+... -> OP_WITH_SELF+...
1.85 paf 366: if(first_name && *first_name==SELF_ELEMENT_NAME) {
1.245 ! misha 367: #ifdef OPTIMIZE_BYTECODE_GET_SELF_ELEMENT
! 368: if(maybe_make_with_self_get_element(*$$, *diving_code, count)){
! 369: // optimization for $self.field and ^self.method
! 370: } else
! 371: #endif
! 372: {
! 373: O(*$$, OP::OP_WITH_SELF); /* stack: starting context */
! 374: P(*$$, *diving_code,
! 375: /* skip over... */
! 376: count>=4?4/*OP_VALUE+origin+string+OP_GET_ELEMENTx*/:3/*OP::OP_+origin+string*/);
! 377: }
1.239 misha 378: }
379:
380: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_ELEMENT
1.240 misha 381: else if(maybe_make_get_object_element(*$$, *diving_code, count)){
1.245 ! misha 382: // optimization for $object.field + ^object.method[
1.239 misha 383: }
1.238 misha 384: #endif
1.239 misha 385:
386: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_VAR_ELEMENT
1.240 misha 387: else if(maybe_make_get_object_var_element(*$$, *diving_code, count)){
1.245 ! misha 388: // optimization for $object.$var
1.239 misha 389: }
1.238 misha 390: #endif
1.239 misha 391:
392: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
393: else if(count==4){ // optimization
394: O(*$$,
395: (PC.in_call_value)
396: ? OP::OP_VALUE__GET_ELEMENT_OR_OPERATOR // ^object[ : OP_VALUE+origin+string+OP_GET_ELEMENT => OP_VALUE__GET_ELEMENT_OR_OPERATOR+origin+string
397: : OP::OP_VALUE__GET_ELEMENT // $object : OP_VALUE+origin+string+OP_GET_ELEMENT => OP_VALUE__GET_ELEMENT+origin+string
398: );
399: P(*$$, *diving_code, 1/*offset*/, 2/*limit*/); // copy origin+value
400: } else {
401: O(*$$, OP::OP_WITH_READ); /* stack: starting context */
402: P(*$$, *diving_code);
403: }
1.233 misha 404: #else
1.239 misha 405: else {
1.238 misha 406: O(*$$, OP::OP_WITH_READ); /* stack: starting context */
1.179 paf 407:
1.238 misha 408: // ^if OP_ELEMENT => ^if OP_ELEMENT_OR_OPERATOR
409: // optimized OP_VALUE+origin+string+OP_GET_ELEMENT. => OP_VALUE+origin+string+OP_GET_ELEMENT_OR_OPERATOR.
1.239 misha 410: if(PC.in_call_value && count==4)
411: diving_code->put(count-1, OP::OP_GET_ELEMENT_OR_OPERATOR);
1.206 paf 412: P(*$$, *diving_code);
1.239 misha 413: }
1.233 misha 414: #endif
1.22 paf 415: /* diving code; stack: current context */
1.1 paf 416: };
1.206 paf 417: name_without_curly_rdive_class: class_prefix name_without_curly_rdive_code { $$=$1; P(*$$, *$2) };
418: name_without_curly_rdive_code: name_advance2 | name_path name_advance2 { $$=$1; P(*$$, *$2) };
1.1 paf 419:
420: /* put */
421:
1.81 paf 422: put: '$' name_expr_wdive construct {
1.241 misha 423: $$=N();
1.244 misha 424: #ifdef OPTIMIZE_BYTECODE_CONSTRUCT
425: if(maybe_optimize_construct(*$$, *$2, *$3)){
426: // $a(expr), $.a(expr), $a[value], $.a[value]
1.241 misha 427: } else
428: #endif
429: {
430: P(*$$, *$2); /* stack: context,name */
431: P(*$$, *$3); /* stack: context,name,constructor_value */
432: }
1.20 paf 433: };
1.44 paf 434: name_expr_wdive:
1.157 parser 435: name_expr_wdive_root
436: | name_expr_wdive_write
1.44 paf 437: | name_expr_wdive_class;
1.157 parser 438: name_expr_wdive_root: name_expr_dive_code {
1.206 paf 439: $$=N();
1.238 misha 440: YYSTYPE diving_code=$1;
1.206 paf 441: const String* first_name=LA2S(*diving_code);
1.238 misha 442: // $self.xxx... => $xxx...
443: // OP_VALUE+origin+string+OP_GET_ELEMENT+... => OP_WITH_SELF+...
1.85 paf 444: if(first_name && *first_name==SELF_ELEMENT_NAME) {
1.229 misha 445: O(*$$, OP::OP_WITH_SELF); /* stack: starting context */
1.206 paf 446: P(*$$, *diving_code,
1.23 paf 447: /* skip over... */
1.229 misha 448: diving_code->count()>=4?4/*OP::OP_VALUE+origin+string+OP::OP_GET_ELEMENTx*/:3/*OP::OP_+origin+string*/);
1.23 paf 449: } else {
1.229 misha 450: O(*$$, OP::OP_WITH_ROOT); /* stack: starting context */
1.206 paf 451: P(*$$, *diving_code);
1.23 paf 452: }
453: /* diving code; stack: current context */
1.156 parser 454: };
1.157 parser 455: name_expr_wdive_write: '.' name_expr_dive_code {
1.206 paf 456: $$=N();
1.229 misha 457: O(*$$, OP::OP_WITH_WRITE); /* stack: starting context */
1.206 paf 458: P(*$$, *$2); /* diving code; stack: context,name */
1.20 paf 459: };
1.206 paf 460: name_expr_wdive_class: class_prefix name_expr_dive_code { $$=$1; P(*$$, *$2) };
1.20 paf 461:
1.244 misha 462: construct:
1.163 parser 463: construct_square
464: | construct_round
465: | construct_curly
1.149 parser 466: ;
1.211 paf 467: construct_square: '[' {
468: // allow $result_or_other_variable[ letters here any time ]
469: *reinterpret_cast<bool*>(&$$)=PC.explicit_result; PC.explicit_result=false;
470: } any_constructor_code_value {
1.213 paf 471: PC.explicit_result=*reinterpret_cast<bool*>(&$2);
1.211 paf 472: } ']' {
1.149 parser 473: // stack: context, name
1.211 paf 474: $$=$3; // stack: context, name, value
1.229 misha 475: O(*$$, OP::OP_CONSTRUCT_VALUE); /* value=pop; name=pop; context=pop; construct(context,name,value) */
1.81 paf 476: }
477: ;
1.149 parser 478: construct_round: '(' expr_value ')' {
1.206 paf 479: $$=N();
1.229 misha 480: O(*$$, OP::OP_PREPARE_TO_EXPRESSION);
1.149 parser 481: // stack: context, name
1.206 paf 482: P(*$$, *$2); // stack: context, name, value
1.229 misha 483: O(*$$, OP::OP_CONSTRUCT_EXPR); /* value=pop->as_expr_result; name=pop; context=pop; construct(context,name,value) */
1.81 paf 484: }
1.52 paf 485: ;
1.149 parser 486: construct_curly: '{' maybe_codes '}' {
487: // stack: context, name
1.206 paf 488: $$=N();
1.229 misha 489: OA(*$$, OP::OP_CURLY_CODE__CONSTRUCT, $2); /* code=pop; name=pop; context=pop; construct(context,name,junction(code)) */
1.149 parser 490: };
491:
1.55 paf 492: any_constructor_code_value:
1.157 parser 493: void_value /* optimized $var[] case */
1.52 paf 494: | STRING /* optimized $var[STRING] case */
1.55 paf 495: | constructor_code_value /* $var[something complex] */
1.1 paf 496: ;
1.55 paf 497: constructor_code_value: constructor_code {
1.206 paf 498: $$=N();
1.229 misha 499: OA(*$$, OP::OP_OBJECT_POOL, $1); /* stack: empty write context */
1.183 paf 500: /* some code that writes to that context */
501: /* context=pop; stack: context.value() */
1.1 paf 502: };
1.55 paf 503: constructor_code: codes__excluding_sole_str_literal;
1.206 paf 504: codes__excluding_sole_str_literal: action | code codes { $$=$1; P(*$$, *$2) };
1.27 paf 505:
1.1 paf 506: /* call */
507:
1.66 paf 508: call: call_value {
1.238 misha 509: #ifdef OPTIMIZE_BYTECODE_CUT_REM_OPERATOR
510: if((*$1).count())
511: #endif
512: {
513: $$=$1; /* stack: value */
514: changetail_or_append(*$$,
515: OP::OP_CALL, true, /*=>*/ OP::OP_CALL__WRITE,
516: /*or */OP::OP_WRITE_VALUE); /* value=pop; wcontext.write(value) */
517: }
1.66 paf 518: };
1.177 paf 519: call_value: '^' {
1.180 paf 520: PC.in_call_value=true;
1.177 paf 521: }
522: call_name {
1.180 paf 523: PC.in_call_value=false;
1.177 paf 524: }
1.154 parser 525: store_params EON { /* ^field.$method{vasya} */
1.238 misha 526: #ifdef OPTIMIZE_BYTECODE_CUT_REM_OPERATOR
1.242 misha 527: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
1.238 misha 528: const String* operator_name=LA2S(*$3, 0, OP::OP_VALUE__GET_ELEMENT_OR_OPERATOR);
1.242 misha 529: #else
530: const String* operator_name=LA2S(*$3, 1);
531: #endif
1.238 misha 532: if(operator_name && *operator_name == REM_OPERATOR_NAME){
533: $$=N();
534: } else
535: #endif
536: {
537: $$=$3; /* with_xxx,diving code; stack: context,method_junction */
1.123 paf 538:
1.238 misha 539: YYSTYPE params_code=$5;
540: if(params_code->count()==3) { // probably [] case. [OP::OP_VALUE+origin+Void]
541: if(Value* value=LA2V(*params_code)) // it is OP_VALUE+origin+value?
542: if(value->is_void()) // value is VVoid?
543: params_code=0; // ^zzz[] case. don't append lone empty param.
544: }
545: /* stack: context, method_junction */
546: OA(*$$, OP::OP_CALL, params_code); // method_frame=make frame(pop junction); ncontext=pop; call(ncontext,method_frame) stack: value
547: }
1.1 paf 548: };
549:
1.43 paf 550: call_name: name_without_curly_rdive;
1.38 paf 551:
1.206 paf 552: store_params: store_param | store_params store_param { $$=$1; P(*$$, *$2) };
1.69 paf 553: store_param:
554: store_square_param
555: | store_round_param
556: | store_curly_param
1.31 paf 557: ;
1.210 paf 558: store_square_param: '[' {
1.211 paf 559: // allow ^call[ letters here any time ]
1.210 paf 560: *reinterpret_cast<bool*>(&$$)=PC.explicit_result; PC.explicit_result=false;
561: } store_code_param_parts {
1.213 paf 562: PC.explicit_result=*reinterpret_cast<bool*>(&$2);
1.210 paf 563: } ']' {$$=$3};
1.69 paf 564: store_round_param: '(' store_expr_param_parts ')' {$$=$2};
1.94 paf 565: store_curly_param: '{' store_curly_param_parts '}' {$$=$2};
1.69 paf 566: store_code_param_parts:
567: store_code_param_part
1.206 paf 568: | store_code_param_parts ';' store_code_param_part { $$=$1; P(*$$, *$3) }
1.69 paf 569: ;
570: store_expr_param_parts:
571: store_expr_param_part
1.206 paf 572: | store_expr_param_parts ';' store_expr_param_part { $$=$1; P(*$$, *$3) }
1.69 paf 573: ;
1.94 paf 574: store_curly_param_parts:
575: store_curly_param_part
1.206 paf 576: | store_curly_param_parts ';' store_curly_param_part { $$=$1; P(*$$, *$3) }
1.94 paf 577: ;
1.120 paf 578: store_code_param_part: code_param_value {
1.32 paf 579: $$=$1;
1.120 paf 580: };
1.214 paf 581: store_expr_param_part: expr_value {
582: YYSTYPE expr_code=$1;
1.215 paf 583: if(expr_code->count()==3
1.234 misha 584: && (*expr_code)[0].code==OP::OP_VALUE) { // optimizing (double/bool/incidently 'string' too) case. [OP::OP_VALUE+origin+Double]. no evaluating
1.214 paf 585: $$=expr_code;
586: } else {
1.238 misha 587: YYSTYPE code=N();
1.229 misha 588: O(*code, OP::OP_PREPARE_TO_EXPRESSION);
1.214 paf 589: P(*code, *expr_code);
1.229 misha 590: O(*code, OP::OP_WRITE_EXPR_RESULT);
1.214 paf 591: $$=N();
1.229 misha 592: OA(*$$, OP::OP_EXPR_CODE__STORE_PARAM, code);
1.214 paf 593: }
1.69 paf 594: };
1.94 paf 595: store_curly_param_part: maybe_codes {
1.206 paf 596: $$=N();
1.229 misha 597: OA(*$$, OP::OP_CURLY_CODE__STORE_PARAM, $1);
1.94 paf 598: };
1.120 paf 599: code_param_value:
1.157 parser 600: void_value /* optimized [;...] case */
1.120 paf 601: | STRING /* optimized [STRING] case */
602: | constructor_code_value /* [something complex] */
603: ;
1.1 paf 604:
605: /* name */
606:
1.206 paf 607: name_expr_dive_code: name_expr_value | name_path name_expr_value { $$=$1; P(*$$, *$2) };
1.1 paf 608:
1.206 paf 609: name_path: name_step | name_path name_step { $$=$1; P(*$$, *$2) };
1.1 paf 610: name_step: name_advance1 '.';
611: name_advance1: name_expr_value {
1.177 paf 612: // we know that name_advance1 not called from ^xxx context
613: // so we'll not check for operator call possibility as we do in name_advance2
614:
1.1 paf 615: /* stack: context */
616: $$=$1; /* stack: context,name */
1.229 misha 617: O(*$$, OP::OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */
1.1 paf 618: };
619: name_advance2: name_expr_value {
620: /* stack: context */
621: $$=$1; /* stack: context,name */
1.229 misha 622: O(*$$, OP::OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */
1.1 paf 623: }
1.4 paf 624: | STRING BOGUS
1.1 paf 625: ;
626: name_expr_value:
1.4 paf 627: STRING /* subname_is_const */
1.1 paf 628: | name_expr_subvar_value /* $subname_is_var_value */
1.160 parser 629: | name_expr_with_subvar_value /* xxx$part_of_subname_is_var_value */
1.166 parser 630: | name_square_code_value /* [codes] */
1.1 paf 631: ;
632: name_expr_subvar_value: '$' subvar_ref_name_rdive {
633: $$=$2;
1.229 misha 634: O(*$$, OP::OP_GET_ELEMENT);
1.1 paf 635: };
1.4 paf 636: name_expr_with_subvar_value: STRING subvar_get_writes {
1.238 misha 637: YYSTYPE code;
1.183 paf 638: {
1.206 paf 639: change_string_literal_to_write_string_literal(*(code=$1));
640: P(*code, *$2);
1.183 paf 641: }
1.206 paf 642: $$=N();
1.229 misha 643: OA(*$$, OP::OP_STRING_POOL, code);
1.1 paf 644: };
1.212 paf 645: name_square_code_value: '[' {
646: // allow $result_or_other_variable[ letters here any time ]
647: *reinterpret_cast<bool*>(&$$)=PC.explicit_result; PC.explicit_result=false;
648: } codes {
1.213 paf 649: PC.explicit_result=*reinterpret_cast<bool*>(&$2);
1.212 paf 650: } ']' {
1.206 paf 651: $$=N();
1.229 misha 652: OA(*$$, OP::OP_OBJECT_POOL, $3); /* stack: empty write context */
1.183 paf 653: /* some code that writes to that context */
654: /* context=pop; stack: context.value() */
1.160 parser 655: };
1.154 parser 656: subvar_ref_name_rdive: STRING {
1.206 paf 657: $$=N();
1.229 misha 658: O(*$$, OP::OP_WITH_READ);
1.206 paf 659: P(*$$, *$1);
1.1 paf 660: };
1.206 paf 661: subvar_get_writes: subvar__get_write | subvar_get_writes subvar__get_write { $$=$1; P(*$$, *$2) };
1.1 paf 662: subvar__get_write: '$' subvar_ref_name_rdive {
663: $$=$2;
1.229 misha 664: O(*$$, OP::OP_GET_ELEMENT__WRITE);
1.42 paf 665: };
666:
1.154 parser 667: class_prefix:
668: class_static_prefix
669: | class_constructor_prefix
670: ;
1.155 parser 671: class_static_prefix: STRING ':' {
672: $$=$1; // stack: class name string
1.206 paf 673: if(*LA2S(*$$) == BASE_NAME) { // pseudo BASE class
674: if(VStateless_class* base=PC.cclass->base_class()) {
675: change_string_literal_value(*$$, base->name());
1.189 paf 676: } else {
677: strcpy(PC.error, "no base class declared");
678: YYERROR;
679: }
680: }
1.233 misha 681: #ifdef OPTIMIZE_BYTECODE_GET_CLASS
1.238 misha 682: // optimized OP_VALUE+origin+string+OP_GET_CLASS => OP_VALUE__GET_CLASS+origin+string
1.245 ! misha 683: maybe_change_first_opcode(*$$, OP::OP_VALUE, OP::OP_VALUE__GET_CLASS)
1.233 misha 684: #else
1.229 misha 685: O(*$$, OP::OP_GET_CLASS);
1.233 misha 686: #endif
1.155 parser 687: };
688: class_constructor_prefix: class_static_prefix ':' {
1.154 parser 689: $$=$1;
1.180 paf 690: if(!PC.in_call_value) {
1.154 parser 691: strcpy(PC.error, ":: not allowed here");
692: YYERROR;
693: }
1.229 misha 694: O(*$$, OP::OP_PREPARE_TO_CONSTRUCT_OBJECT);
1.1 paf 695: };
696:
1.53 paf 697:
1.56 paf 698: /* expr */
1.53 paf 699:
1.214 paf 700: expr_value: expr;
1.56 paf 701: expr:
1.214 paf 702: double_or_STRING
1.216 paf 703: | true_value
704: | false_value
1.64 paf 705: | get_value
1.66 paf 706: | call_value
1.216 paf 707: | '"' string_inside_quotes_value '"' { $$ = $2 }
708: | '\'' string_inside_quotes_value '\'' { $$ = $2 }
1.60 paf 709: | '(' expr ')' { $$ = $2; }
710: /* stack: operand // stack: @operand */
1.229 misha 711: | '-' expr %prec NUNARY { $$=$2; O(*$$, OP::OP_NEG) }
1.202 paf 712: | '+' expr %prec NUNARY { $$=$2 }
1.229 misha 713: | '~' expr { $$=$2; O(*$$, OP::OP_INV) }
714: | '!' expr { $$=$2; O(*$$, OP::OP_NOT) }
715: | "def" expr { $$=$2; O(*$$, OP::OP_DEF) }
716: | "in" expr { $$=$2; O(*$$, OP::OP_IN) }
717: | "-f" expr { $$=$2; O(*$$, OP::OP_FEXISTS) }
718: | "-d" expr { $$=$2; O(*$$, OP::OP_DEXISTS) }
1.60 paf 719: /* stack: a,b // stack: a@b */
1.229 misha 720: | expr '-' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_SUB) }
721: | expr '+' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_ADD) }
722: | expr '*' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_MUL) }
723: | expr '/' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_DIV) }
724: | expr '%' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_MOD) }
725: | expr '\\' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_INTDIV) }
726: | expr "<<" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_SL) }
727: | expr ">>" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_SR) }
728: | expr '&' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_AND) }
729: | expr '|' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_OR) }
730: | expr "!|" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_XOR) }
731: | expr "&&" expr { $$=$1; OA(*$$, OP::OP_NESTED_CODE, $3); O(*$$, OP::OP_LOG_AND) }
732: | expr "||" expr { $$=$1; OA(*$$, OP::OP_NESTED_CODE, $3); O(*$$, OP::OP_LOG_OR) }
733: | expr "!||" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_LOG_XOR) }
734: | expr '<' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_LT) }
735: | expr '>' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_GT) }
736: | expr "<=" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_LE) }
737: | expr ">=" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_GE) }
738: | expr "==" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_EQ) }
739: | expr "!=" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_NE) }
740: | expr "lt" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_LT) }
741: | expr "gt" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_GT) }
742: | expr "le" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_LE) }
743: | expr "ge" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_GE) }
744: | expr "eq" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_EQ) }
745: | expr "ne" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_NE) }
746: | expr "is" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_IS) }
1.56 paf 747: ;
1.214 paf 748:
749: double_or_STRING: STRING {
1.238 misha 750: // optimized OP_STRING => OP_VALUE for doubles
1.214 paf 751: maybe_change_string_literal_to_double_literal(*($$=$1));
752: };
1.55 paf 753:
1.65 paf 754: string_inside_quotes_value: maybe_codes {
1.238 misha 755: #ifdef OPTIMIZE_BYTECODE_STRING_POOL
756: // it brakes ^if(" 09 "){...}
757: YYSTYPE code=$1;
758: $$=N();
1.239 misha 759: if(code->count()==3 && maybe_change_first_opcode(*code, OP::OP_STRING__WRITE, OP::OP_VALUE)){
1.238 misha 760: // optimized OP_STRING__WRITE+origin+value => OP_VALUE+origin+value without starting OP_STRING_POOL
761: P(*$$, *code);
762: } else {
763: OA(*$$, OP::OP_STRING_POOL, code); /* stack: empty write context */
764: }
765: #else
1.206 paf 766: $$=N();
1.229 misha 767: OA(*$$, OP::OP_STRING_POOL, $1); /* stack: empty write context */
1.238 misha 768: #endif
1.183 paf 769: /* some code that writes to that context */
770: /* context=pop; stack: context.get_string() */
1.53 paf 771: };
1.1 paf 772:
1.27 paf 773: /* basics */
1.1 paf 774:
1.81 paf 775: write_string: STRING {
1.238 misha 776: // optimized OP_STRING+OP_WRITE_VALUE => OP_STRING__WRITE
1.209 paf 777: change_string_literal_to_write_string_literal(*($$=$1))
1.54 paf 778: };
779:
1.216 paf 780: void_value: /* empty */ { $$=VL(/*we know that we will not change it*/const_cast<VVoid*>(&vvoid), 0, 0, 0) }
781: true_value: "true" { $$ = VL(/*we know that we will not change it*/const_cast<VBool*>(&vtrue), 0, 0, 0) }
782: false_value: "false" { $$ = VL(/*we know that we will not change it*/const_cast<VBool*>(&vfalse), 0, 0, 0) }
783:
1.206 paf 784: empty: /* empty */ { $$=N() };
1.1 paf 785:
786: %%
1.105 paf 787: #endif
1.1 paf 788:
789: /*
790: 000$111(2222)00
791: 000$111{3333}00
1.9 paf 792: $,^: push,=0
1.1 paf 793: 1:( { break=pop
794: 2:( ) pop
795: 3:{ } pop
796:
797: 000^111(2222)4444{33333}4000
1.9 paf 798: $,^: push,=0
1.1 paf 799: 1:( { break=pop
800: 2:( )=4
801: 3:{ }=4
802: 4:[^({]=pop
803: */
804:
1.206 paf 805: inline void ungetc(Parse_control& pc, uint last_line_end_col) {
806: pc.source--;
807: if(pc.pos.col==0) {
808: --pc.pos.line; pc.pos.col=last_line_end_col;
809: } else
810: --pc.pos.col;
811:
812: }
813: static int yylex(YYSTYPE *lvalp, void *apc) {
814: register Parse_control& pc=*static_cast<Parse_control*>(apc);
815:
816: #define lexical_brackets_nestage pc.brackets_nestages[pc.ls_sp]
1.48 paf 817: #define RC {result=c; goto break2; }
1.1 paf 818:
1.206 paf 819: register int c;
820: int result;
1.1 paf 821:
1.206 paf 822: if(pc.pending_state) {
823: result=pc.pending_state;
824: pc.pending_state=0;
1.1 paf 825: return result;
826: }
827:
1.206 paf 828: const char *begin=pc.source;
829: Pos begin_pos=pc.pos;
1.91 paf 830: const char *end;
1.67 paf 831: int skip_analized=0;
1.50 paf 832: while(true) {
1.206 paf 833: c=*(end=(pc.source++));
834: // fprintf(stderr, "\nchar: %c %02X; nestage: %d, sp=%d", c, c, lexical_brackets_nestage, pc.sp);
1.1 paf 835:
1.208 paf 836: if(c=='\n')
1.206 paf 837: pc.pos_next_line();
1.208 paf 838: else
1.206 paf 839: pc.pos_next_c(c);
1.208 paf 840: // fprintf(stderr, "\nchar: %c file(%d:%d)", c, pc.pos.line, pc.pos.col);
1.73 paf 841:
1.208 paf 842: if(pc.pos.col==0+1 && c=='@') {
1.206 paf 843: if(pc.ls==LS_DEF_SPECIAL_BODY) {
1.175 paf 844: // @SPECIAL
845: // ...
846: // @<here =
1.206 paf 847: pop_LS(pc); // exiting from LS_DEF_SPECIAL_BODY state
1.175 paf 848: } // continuing checks
1.206 paf 849: if(pc.ls==LS_USER) {
850: push_LS(pc, LS_DEF_NAME);
1.171 parser 851: RC;
1.175 paf 852: } else // @ in first column inside some code [when could that be?]
1.171 parser 853: result=BAD_METHOD_DECL_START;
854: goto break2;
1.209 paf 855: }
856: if(c=='^') {
1.206 paf 857: if(pc.ls==LS_METHOD_AFTER) {
1.203 paf 858: // handle after-method situation
1.206 paf 859: pop_LS(pc);
1.203 paf 860: result=EON;
861: skip_analized=-1; // return to punctuation afterwards to assure it's literality
862: goto break2;
863: }
1.206 paf 864: switch(pc.ls) {
1.169 parser 865: case LS_EXPRESSION_VAR_NAME_WITH_COLON:
866: case LS_EXPRESSION_VAR_NAME_WITHOUT_COLON:
867: case LS_VAR_NAME_SIMPLE_WITH_COLON:
868: case LS_VAR_NAME_SIMPLE_WITHOUT_COLON:
869: case LS_VAR_NAME_CURLY:
870: case LS_METHOD_NAME:
1.194 paf 871: case LS_USER_COMMENT:
1.169 parser 872: case LS_DEF_COMMENT:
873: // no literals in names, please
874: break;
875: default:
1.206 paf 876: switch(*pc.source) {
1.165 parser 877: // ^escaping some punctuators
1.228 misha 878: case '^': case '$': case ';': case '@':
1.126 paf 879: case '(': case ')':
1.48 paf 880: case '[': case ']':
881: case '{': case '}':
1.172 parser 882: case '"': case ':':
1.40 paf 883: if(end!=begin) {
1.206 paf 884: if(!pc.string_start)
885: pc.string_start=begin_pos;
1.40 paf 886: // append piece till ^
1.206 paf 887: pc.string.append_strdup_know_length(begin, end-begin);
1.40 paf 888: }
1.63 paf 889: // reset piece 'begin' position & line
1.206 paf 890: begin=pc.source; // ->punctuation
891: begin_pos=pc.pos;
1.203 paf 892: // skip over _ after ^
1.206 paf 893: pc.source++; pc.pos.col++;
1.203 paf 894: // skip analysis = forced literal
895: continue;
1.114 paf 896:
897: // converting ^#HH into char(hex(HH))
898: case '#':
899: if(end!=begin) {
1.206 paf 900: if(!pc.string_start)
901: pc.string_start=begin_pos;
1.114 paf 902: // append piece till ^
1.206 paf 903: pc.string.append_strdup_know_length(begin, end-begin);
1.114 paf 904: }
905: // #HH ?
1.228 misha 906: if(pc.source[1] && isxdigit(pc.source[1]) && pc.source[2] && isxdigit(pc.source[2])) {
1.218 paf 907: char c=(char)(
1.206 paf 908: hex_value[(unsigned char)pc.source[1]]*0x10+
1.218 paf 909: hex_value[(unsigned char)pc.source[2]]);
1.206 paf 910: if(c==0) {
1.114 paf 911: result=BAD_HEX_LITERAL;
912: goto break2; // wrong hex value[no ^#00 chars allowed]: bail out
913: }
914: // append char(hex(HH))
1.206 paf 915: pc.string.append(c);
1.114 paf 916: // skip over ^#HH
1.206 paf 917: pc.source+=3;
918: pc.pos.col+=3;
1.114 paf 919: // reset piece 'begin' position & line
1.206 paf 920: begin=pc.source; // ->after ^#HH
921: begin_pos=pc.pos;
1.203 paf 922: // skip analysis = forced literal
1.114 paf 923: continue;
924: }
1.228 misha 925: // just escaped char
926: // reset piece 'begin' position & line
927: begin=pc.source;
928: begin_pos=pc.pos;
929: // skip over _ after ^
930: pc.source++; pc.pos.col++;
931: // skip analysis = forced literal
932: continue;
1.1 paf 933: }
1.169 parser 934: break;
1.203 paf 935: }
1.169 parser 936: }
1.113 paf 937: // #comment start skipping
1.206 paf 938: if(c=='#' && pc.pos.col==1) {
1.112 paf 939: if(end!=begin) {
1.206 paf 940: if(!pc.string_start)
941: pc.string_start=begin_pos;
1.112 paf 942: // append piece till #
1.206 paf 943: pc.string.append_strdup_know_length(begin, end-begin);
1.112 paf 944: }
945: // fall into COMMENT lexical state [wait for \n]
1.206 paf 946: push_LS(pc, LS_USER_COMMENT);
1.175 paf 947: continue;
1.112 paf 948: }
1.206 paf 949: switch(pc.ls) {
1.10 paf 950:
951: // USER'S = NOT OURS
1.1 paf 952: case LS_USER:
1.206 paf 953: case LS_NAME_SQUARE_PART: // name.[here].xxx
954: if(pc.trim_bof)
1.153 parser 955: switch(c) {
956: case '\n': case ' ': case '\t':
1.206 paf 957: begin=pc.source;
958: begin_pos=pc.pos;
1.152 parser 959: continue; // skip it
1.153 parser 960: default:
1.206 paf 961: pc.trim_bof=false;
1.152 parser 962: }
1.48 paf 963: switch(c) {
964: case '$':
1.206 paf 965: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 966: RC;
967: case '^':
1.206 paf 968: push_LS(pc, LS_METHOD_NAME);
1.48 paf 969: RC;
1.166 parser 970: case ']':
1.206 paf 971: if(pc.ls==LS_NAME_SQUARE_PART)
1.166 parser 972: if(--lexical_brackets_nestage==0) {// $name.[co<]?>de<]?>
1.206 paf 973: pop_LS(pc); // $name.[co<]>de<]!>
1.166 parser 974: RC;
975: }
1.160 parser 976: break;
1.166 parser 977: case '[': // $name.[co<[>de]
1.206 paf 978: if(pc.ls==LS_NAME_SQUARE_PART)
1.166 parser 979: lexical_brackets_nestage++;
1.161 parser 980: break;
1.112 paf 981: }
1.209 paf 982: if(pc.explicit_result && c)
983: switch(c) {
984: case '\n': case ' ': case '\t':
985: begin=pc.source;
986: begin_pos=pc.pos;
987: continue; // skip it
988: default:
989: result=BAD_NONWHITESPACE_CHARACTER_IN_EXPLICIT_RESULT_MODE;
990: goto break2;
991: }
1.112 paf 992: break;
993:
994: // #COMMENT
1.194 paf 995: case LS_USER_COMMENT:
1.112 paf 996: if(c=='\n') {
997: // skip comment
1.206 paf 998: begin=pc.source;
999: begin_pos=pc.pos;
1.112 paf 1000:
1.206 paf 1001: pop_LS(pc);
1.112 paf 1002: continue;
1.1 paf 1003: }
1.48 paf 1004: break;
1005:
1006: // STRING IN EXPRESSION
1.145 parser 1007: case LS_EXPRESSION_STRING_QUOTED:
1008: case LS_EXPRESSION_STRING_APOSTROFED:
1.48 paf 1009: switch(c) {
1010: case '"':
1.145 parser 1011: case '\'':
1012: if(
1.206 paf 1013: pc.ls == LS_EXPRESSION_STRING_QUOTED && c=='"' ||
1014: pc.ls == LS_EXPRESSION_STRING_APOSTROFED && c=='\'') {
1015: pop_LS(pc); //"abc". | 'abc'.
1.145 parser 1016: RC;
1017: }
1018: break;
1.48 paf 1019: case '$':
1.206 paf 1020: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1021: RC;
1022: case '^':
1.206 paf 1023: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1024: RC;
1.10 paf 1025: }
1026: break;
1027:
1028: // METHOD DEFINITION
1029: case LS_DEF_NAME:
1.48 paf 1030: switch(c) {
1031: case '[':
1.206 paf 1032: pc.ls=LS_DEF_PARAMS;
1.48 paf 1033: RC;
1034: case '\n':
1.206 paf 1035: pc.ls=LS_DEF_SPECIAL_BODY;
1.48 paf 1036: RC;
1.10 paf 1037: }
1038: break;
1.48 paf 1039:
1.10 paf 1040: case LS_DEF_PARAMS:
1.48 paf 1041: switch(c) {
1.192 paf 1042: case '$': // common error
1.193 paf 1043: result=BAD_METHOD_PARAMETER_NAME_CHARACTER;
1044: goto break2;
1.48 paf 1045: case ';':
1046: RC;
1047: case ']':
1.206 paf 1048: pc.ls=*pc.source=='['?LS_DEF_LOCALS:LS_DEF_COMMENT;
1.48 paf 1049: RC;
1.49 paf 1050: case '\n': // wrong. bailing out
1.206 paf 1051: pop_LS(pc);
1.48 paf 1052: RC;
1.10 paf 1053: }
1054: break;
1.48 paf 1055:
1.10 paf 1056: case LS_DEF_LOCALS:
1.48 paf 1057: switch(c) {
1058: case '[':
1059: case ';':
1060: RC;
1061: case ']':
1.206 paf 1062: pc.ls=LS_DEF_COMMENT;
1.48 paf 1063: RC;
1064: case '\n': // wrong. bailing out
1.206 paf 1065: pop_LS(pc);
1.48 paf 1066: RC;
1.10 paf 1067: }
1068: break;
1.48 paf 1069:
1.10 paf 1070: case LS_DEF_COMMENT:
1071: if(c=='\n') {
1.206 paf 1072: pop_LS(pc);
1.48 paf 1073: RC;
1.37 paf 1074: }
1075: break;
1076:
1.48 paf 1077: case LS_DEF_SPECIAL_BODY:
1.175 paf 1078: if(c=='\n')
1.48 paf 1079: RC;
1080: break;
1081:
1082: // (EXPRESSION)
1.69 paf 1083: case LS_VAR_ROUND:
1084: case LS_METHOD_ROUND:
1.48 paf 1085: switch(c) {
1086: case ')':
1087: if(--lexical_brackets_nestage==0)
1.206 paf 1088: if(pc.ls==LS_METHOD_ROUND) // method round param ended
1089: pc.ls=LS_METHOD_AFTER; // look for method end
1090: else // pc.ls==LS_VAR_ROUND // variable constructor ended
1091: pop_LS(pc); // return to normal life
1.48 paf 1092: RC;
1.194 paf 1093: case '#': // comment start skipping
1094: if(end!=begin) {
1.206 paf 1095: if(!pc.string_start)
1096: pc.string_start=begin_pos;
1.194 paf 1097: // append piece till #
1.206 paf 1098: pc.string.append_strdup_know_length(begin, end-begin);
1.194 paf 1099: }
1100: // fall into COMMENT lexical state [wait for \n]
1.206 paf 1101: push_LS(pc, LS_EXPRESSION_COMMENT);
1.194 paf 1102: lexical_brackets_nestage=1;
1103: continue;
1.48 paf 1104: case '$':
1.206 paf 1105: push_LS(pc, LS_EXPRESSION_VAR_NAME_WITH_COLON);
1.48 paf 1106: RC;
1107: case '^':
1.206 paf 1108: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1109: RC;
1110: case '(':
1111: lexical_brackets_nestage++;
1112: RC;
1.67 paf 1113: case '-':
1.206 paf 1114: switch(*pc.source) {
1.127 paf 1115: case 'f': // -f
1.67 paf 1116: skip_analized=1;
1117: result=FEXISTS;
1.127 paf 1118: goto break2;
1119: case 'd': // -d
1120: skip_analized=1;
1121: result=DEXISTS;
1122: goto break2;
1.191 paf 1123: default: // minus
1.67 paf 1124: result=c;
1.127 paf 1125: goto break2;
1126: }
1.67 paf 1127: goto break2;
1.173 paf 1128: case '+': case '*': case '/': case '%': case '\\':
1.58 paf 1129: case '~':
1.48 paf 1130: case ';':
1131: RC;
1.193 paf 1132: case '&': case '|':
1.206 paf 1133: if(*pc.source==c) { // && ||
1.193 paf 1134: result=c=='&'?LAND:LOR;
1.67 paf 1135: skip_analized=1;
1.58 paf 1136: } else
1137: result=c;
1138: goto break2;
1.193 paf 1139: case '!':
1.206 paf 1140: switch(pc.source[0]) {
1.193 paf 1141: case '|': // !| !||
1142: skip_analized=1;
1.206 paf 1143: if(pc.source[1]=='|') {
1.193 paf 1144: skip_analized++;
1145: result=LXOR;
1146: } else
1147: result=NXOR;
1148: goto break2;
1149: case '=': // !=
1150: skip_analized=1;
1151: result=NNE;
1152: goto break2;
1153: }
1154: RC;
1.195 paf 1155:
1156: case '<': // <<, <=, <
1.206 paf 1157: switch(*pc.source) {
1.195 paf 1158: case '<': // <[<]
1159: skip_analized=1; result=NSL; break;
1160: case '=': // <[=]
1161: skip_analized=1; result=NLE; break;
1162: default: // <[]
1163: result=c; break;
1164: }
1165: goto break2;
1166: case '>': // >>, >=, >
1.206 paf 1167: switch(*pc.source) {
1.195 paf 1168: case '>': // >[>]
1169: skip_analized=1; result=NSR; break;
1170: case '=': // >[=]
1171: skip_analized=1; result=NGE; break;
1172: default: // >[]
1173: result=c; break;
1174: }
1175: goto break2;
1176: case '=': // ==
1.206 paf 1177: switch(*pc.source) {
1.195 paf 1178: case '=': // =[=]
1179: skip_analized=1; result=NEQ; break;
1180: default: // =[]
1181: result=c; break; // not used now
1182: }
1.58 paf 1183: goto break2;
1.195 paf 1184:
1.48 paf 1185: case '"':
1.206 paf 1186: push_LS(pc, LS_EXPRESSION_STRING_QUOTED);
1.145 parser 1187: RC;
1188: case '\'':
1.206 paf 1189: push_LS(pc, LS_EXPRESSION_STRING_APOSTROFED);
1.48 paf 1190: RC;
1.50 paf 1191: case 'l': case 'g': case 'e': case 'n':
1.51 paf 1192: if(end==begin) // right after whitespace
1.206 paf 1193: if(isspace(pc.source[1])) {
1194: switch(*pc.source) {
1.117 paf 1195: // case '?': // ok [and bad cases, yacc would bark at them]
1196: case 't': // lt gt [et nt]
1197: result=c=='l'?SLT:c=='g'?SGT:BAD_STRING_COMPARISON_OPERATOR;
1198: skip_analized=1;
1199: goto break2;
1200: case 'e': // le ge ne [ee]
1201: result=c=='l'?SLE:c=='g'?SGE:c=='n'?SNE:BAD_STRING_COMPARISON_OPERATOR;
1202: skip_analized=1;
1203: goto break2;
1204: case 'q': // eq [lq gq nq]
1205: result=c=='e'?SEQ:BAD_STRING_COMPARISON_OPERATOR;
1206: skip_analized=1;
1207: goto break2;
1208: }
1.67 paf 1209: }
1210: break;
1211: case 'i':
1212: if(end==begin) // right after whitespace
1.206 paf 1213: if(isspace(pc.source[1])) {
1214: switch(pc.source[0]) {
1.117 paf 1215: case 'n': // in
1.95 paf 1216: skip_analized=1;
1217: result=IN;
1218: goto break2;
1.117 paf 1219: case 's': // is
1.95 paf 1220: skip_analized=1;
1221: result=IS;
1222: goto break2;
1223: }
1.67 paf 1224: }
1225: break;
1226: case 'd':
1227: if(end==begin) // right after whitespace
1.206 paf 1228: if(pc.source[0]=='e' && pc.source[1]=='f') { // def
1.225 misha 1229: switch(pc.source[2]){
1230: case ' ': case '\t': case '\n': case '"': case '\'': case '^': case '$': // non-quoted string without whitespace after 'def' is not allowed
1231: skip_analized=2;
1232: result=DEF;
1233: goto break2;
1234: }
1235: // error: incorrect char after 'def'
1.50 paf 1236: }
1.48 paf 1237: break;
1.216 paf 1238: case 't':
1239: if(end==begin) // right after whitespace
1.225 misha 1240: if(pc.source[0]=='r' && pc.source[1]=='u' && pc.source[2]=='e') { // true
1.216 paf 1241: skip_analized=3;
1242: result=LITERAL_TRUE;
1243: goto break2;
1244: }
1245: break;
1246: case 'f':
1247: if(end==begin) // right after whitespace
1.225 misha 1248: if(pc.source[0]=='a' && pc.source[1]=='l' && pc.source[2]=='s' && pc.source[3]=='e') { // false
1.216 paf 1249: skip_analized=4;
1250: result=LITERAL_FALSE;
1251: goto break2;
1252: }
1253: break;
1.48 paf 1254: case ' ': case '\t': case '\n':
1.63 paf 1255: if(end!=begin) { // there were a string after previous operator?
1256: result=0; // return that string
1257: goto break2;
1.48 paf 1258: }
1.63 paf 1259: // that's a leading|traling space or after-operator-space
1260: // ignoring it
1261: // reset piece 'begin' position & line
1.206 paf 1262: begin=pc.source; // after whitespace char
1263: begin_pos=pc.pos;
1.48 paf 1264: continue;
1.1 paf 1265: }
1266: break;
1.194 paf 1267: case LS_EXPRESSION_COMMENT:
1268: if(c=='(')
1269: lexical_brackets_nestage++;
1270:
1.206 paf 1271: switch(*pc.source) {
1.194 paf 1272: case '\n': case ')':
1.206 paf 1273: if(*pc.source==')')
1.194 paf 1274: if(--lexical_brackets_nestage!=0)
1275: continue;
1276:
1277: // skip comment
1.206 paf 1278: begin=pc.source;
1279: begin_pos=pc.pos;
1.194 paf 1280:
1.206 paf 1281: pop_LS(pc);
1.194 paf 1282: continue;
1283: }
1284: break;
1.1 paf 1285:
1.10 paf 1286: // VARIABLE GET/PUT/WITH
1.166 parser 1287: case LS_VAR_NAME_SIMPLE_WITH_COLON:
1288: case LS_VAR_NAME_SIMPLE_WITHOUT_COLON:
1289: case LS_EXPRESSION_VAR_NAME_WITH_COLON:
1290: case LS_EXPRESSION_VAR_NAME_WITHOUT_COLON:
1291: if(
1.206 paf 1292: pc.ls==LS_EXPRESSION_VAR_NAME_WITH_COLON ||
1293: pc.ls==LS_EXPRESSION_VAR_NAME_WITHOUT_COLON) {
1.181 paf 1294: // name in expr ends also before
1.48 paf 1295: switch(c) {
1.181 paf 1296: // expression minus
1.92 paf 1297: case '-':
1.181 paf 1298: // expression integer division
1299: case '\\':
1.206 paf 1300: pop_LS(pc);
1301: pc.ungetc();
1.48 paf 1302: result=EON;
1303: goto break2;
1304: }
1305: }
1.166 parser 1306: if(
1.206 paf 1307: pc.ls==LS_VAR_NAME_SIMPLE_WITHOUT_COLON ||
1308: pc.ls==LS_EXPRESSION_VAR_NAME_WITHOUT_COLON) {
1.142 parser 1309: // name already has ':', stop before next
1310: switch(c) {
1311: case ':':
1.206 paf 1312: pop_LS(pc);
1313: pc.ungetc();
1.142 parser 1314: result=EON;
1315: goto break2;
1316: }
1317: }
1.48 paf 1318: switch(c) {
1319: case 0:
1320: case ' ': case '\t': case '\n':
1321: case ';':
1.126 paf 1322: case ']': case '}': case ')':
1323: case '"': case '\'':
1.139 parser 1324: case '<': case '>': // these stand for HTML brackets AND expression binary ops
1.92 paf 1325: case '+': case '*': case '/': case '%':
1326: case '&': case '|':
1327: case '=': case '!':
1.99 paf 1328: // common delimiters
1.190 paf 1329: case ',': case '?': case '#':
1.220 paf 1330: // mysql column separators
1331: case '`':
1.139 parser 1332: // before call
1333: case '^':
1.206 paf 1334: pop_LS(pc);
1335: pc.ungetc();
1.13 paf 1336: result=EON;
1.1 paf 1337: goto break2;
1.48 paf 1338: case '[':
1.162 parser 1339: // $name.<[>code]
1.206 paf 1340: if(pc.pos.col>1/*not first column*/ && (
1.163 parser 1341: end[-1]=='$'/*was start of get*/ ||
1342: end[-1]==':'/*was class name delim */ ||
1343: end[-1]=='.'/*was name delim */
1.162 parser 1344: )) {
1.206 paf 1345: push_LS(pc, LS_NAME_SQUARE_PART);
1.162 parser 1346: lexical_brackets_nestage=1;
1347: RC;
1348: }
1.206 paf 1349: pc.ls=LS_VAR_SQUARE;
1.1 paf 1350: lexical_brackets_nestage=1;
1.48 paf 1351: RC;
1352: case '{':
1353: if(begin==end) { // ${name}, no need of EON, switching LS
1.206 paf 1354: pc.ls=LS_VAR_NAME_CURLY;
1.48 paf 1355: } else {
1.206 paf 1356: pc.ls=LS_VAR_CURLY;
1.48 paf 1357: lexical_brackets_nestage=1;
1358: }
1.69 paf 1359:
1.48 paf 1360: RC;
1361: case '(':
1.206 paf 1362: pc.ls=LS_VAR_ROUND;
1.1 paf 1363: lexical_brackets_nestage=1;
1.48 paf 1364: RC;
1365: case '.': // name part delim
1366: case '$': // name part subvar
1.160 parser 1367: case ':': // class<:>name
1.166 parser 1368: // go to _WITHOUT_COLON state variant...
1.206 paf 1369: if(pc.ls==LS_VAR_NAME_SIMPLE_WITH_COLON)
1370: pc.ls=LS_VAR_NAME_SIMPLE_WITHOUT_COLON;
1371: else if(pc.ls==LS_EXPRESSION_VAR_NAME_WITH_COLON)
1372: pc.ls=LS_EXPRESSION_VAR_NAME_WITHOUT_COLON;
1.166 parser 1373: // ...stop before next ':'
1.48 paf 1374: RC;
1.1 paf 1375: }
1376: break;
1.48 paf 1377:
1.1 paf 1378: case LS_VAR_NAME_CURLY:
1.48 paf 1379: switch(c) {
1.162 parser 1380: case '[':
1.166 parser 1381: // ${name.<[>code]}
1.206 paf 1382: push_LS(pc, LS_NAME_SQUARE_PART);
1.160 parser 1383: lexical_brackets_nestage=1;
1384: RC;
1.48 paf 1385: case '}': // ${name} finished, restoring LS
1.206 paf 1386: pop_LS(pc);
1.48 paf 1387: RC;
1388: case '.': // name part delim
1389: case '$': // name part subvar
1390: case ':': // ':name' or 'class:name'
1391: RC;
1.1 paf 1392: }
1393: break;
1.48 paf 1394:
1395: case LS_VAR_SQUARE:
1396: switch(c) {
1397: case '$':
1.206 paf 1398: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1399: RC;
1400: case '^':
1.206 paf 1401: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1402: RC;
1403: case ']':
1.1 paf 1404: if(--lexical_brackets_nestage==0) {
1.206 paf 1405: pop_LS(pc);
1.48 paf 1406: RC;
1.1 paf 1407: }
1.48 paf 1408: break;
1409: case ';': // operator_or_fmt;value delim
1410: RC;
1411: case '[':
1412: lexical_brackets_nestage++;
1413: break;
1.1 paf 1414: }
1415: break;
1.48 paf 1416:
1.1 paf 1417: case LS_VAR_CURLY:
1.48 paf 1418: switch(c) {
1419: case '$':
1.206 paf 1420: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1421: RC;
1422: case '^':
1.206 paf 1423: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1424: RC;
1425: case '}':
1.1 paf 1426: if(--lexical_brackets_nestage==0) {
1.206 paf 1427: pop_LS(pc);
1.48 paf 1428: RC;
1.1 paf 1429: }
1.48 paf 1430: break;
1431: case '{':
1.1 paf 1432: lexical_brackets_nestage++;
1.48 paf 1433: break;
1434: }
1.1 paf 1435: break;
1436:
1.10 paf 1437: // METHOD CALL
1.1 paf 1438: case LS_METHOD_NAME:
1.48 paf 1439: switch(c) {
1440: case '[':
1.166 parser 1441: // ^name.<[>code].xxx
1.206 paf 1442: if(pc.pos.col>1/*not first column*/ && (
1.163 parser 1443: end[-1]=='^'/*was start of call*/ || // never, ^[ is literal...
1444: end[-1]==':'/*was class name delim */ ||
1445: end[-1]=='.'/*was name delim */
1.162 parser 1446: )) {
1.206 paf 1447: push_LS(pc, LS_NAME_SQUARE_PART);
1.162 parser 1448: lexical_brackets_nestage=1;
1449: RC;
1450: }
1.206 paf 1451: pc.ls=LS_METHOD_SQUARE;
1.1 paf 1452: lexical_brackets_nestage=1;
1.48 paf 1453: RC;
1454: case '{':
1.206 paf 1455: pc.ls=LS_METHOD_CURLY;
1.1 paf 1456: lexical_brackets_nestage=1;
1.48 paf 1457: RC;
1.69 paf 1458: case '(':
1.206 paf 1459: pc.ls=LS_METHOD_ROUND;
1.69 paf 1460: lexical_brackets_nestage=1;
1461: RC;
1.48 paf 1462: case '.': // name part delim
1463: case '$': // name part subvar
1464: case ':': // ':name' or 'class:name'
1.170 parser 1465: case '^': // ^abc^xxx wrong. bailing out
1466: case ']': case '}': case ')': // ^abc]}) wrong. bailing out
1.207 paf 1467: case ' ': // ^if ( wrong. bailing out
1.48 paf 1468: RC;
1.1 paf 1469: }
1470: break;
1.48 paf 1471:
1472: case LS_METHOD_SQUARE:
1473: switch(c) {
1474: case '$':
1.206 paf 1475: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1476: RC;
1477: case '^':
1.206 paf 1478: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1479: RC;
1480: case ';': // param delim
1481: RC;
1482: case ']':
1.1 paf 1483: if(--lexical_brackets_nestage==0) {
1.206 paf 1484: pc.ls=LS_METHOD_AFTER;
1.48 paf 1485: RC;
1.1 paf 1486: }
1.48 paf 1487: break;
1488: case '[':
1.1 paf 1489: lexical_brackets_nestage++;
1.48 paf 1490: break;
1491: }
1.1 paf 1492: break;
1.48 paf 1493:
1.1 paf 1494: case LS_METHOD_CURLY:
1.48 paf 1495: switch(c) {
1496: case '$':
1.206 paf 1497: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1498: RC;
1499: case '^':
1.206 paf 1500: push_LS(pc, LS_METHOD_NAME);
1.94 paf 1501: RC;
1502: case ';': // param delim
1.48 paf 1503: RC;
1504: case '}':
1.1 paf 1505: if(--lexical_brackets_nestage==0) {
1.206 paf 1506: pc.ls=LS_METHOD_AFTER;
1.48 paf 1507: RC;
1.1 paf 1508: }
1.48 paf 1509: break;
1510: case '{':
1.1 paf 1511: lexical_brackets_nestage++;
1.48 paf 1512: break;
1513: }
1.209 paf 1514: if(pc.explicit_result && c)
1515: switch(c) {
1516: case '\n': case ' ': case '\t':
1517: begin=pc.source;
1518: begin_pos=pc.pos;
1519: continue; // skip it
1520: default:
1521: result=BAD_NONWHITESPACE_CHARACTER_IN_EXPLICIT_RESULT_MODE;
1522: goto break2;
1523: }
1.1 paf 1524: break;
1.48 paf 1525:
1.1 paf 1526: case LS_METHOD_AFTER:
1.69 paf 1527: if(c=='[') {/* ][ }[ )[ */
1.206 paf 1528: pc.ls=LS_METHOD_SQUARE;
1.1 paf 1529: lexical_brackets_nestage=1;
1.48 paf 1530: RC;
1.1 paf 1531: }
1.69 paf 1532: if(c=='{') {/* ]{ }{ ){ */
1.206 paf 1533: pc.ls=LS_METHOD_CURLY;
1.69 paf 1534: lexical_brackets_nestage=1;
1535: RC;
1536: }
1537: if(c=='(') {/* ]( }( )( */
1.206 paf 1538: pc.ls=LS_METHOD_ROUND;
1.1 paf 1539: lexical_brackets_nestage=1;
1.48 paf 1540: RC;
1.1 paf 1541: }
1.206 paf 1542: pop_LS(pc);
1543: pc.ungetc();
1.13 paf 1544: result=EON;
1.1 paf 1545: goto break2;
1546: }
1.9 paf 1547: if(c==0) {
1.1 paf 1548: result=-1;
1549: break;
1550: }
1551: }
1552:
1553: break2:
1.59 paf 1554: if(end!=begin) { // there is last piece?
1555: if((c=='@' || c==0) && end[-1]=='\n') { // we are before LS_DEF_NAME or EOF?
1556: // strip last \n
1.10 paf 1557: end--;
1.137 parser 1558: if(end!=begin && end[-1]=='\n') // allow one empty line before LS_DEF_NAME
1559: end--;
1.59 paf 1560: }
1.206 paf 1561: if(end!=begin && pc.ls!=LS_USER_COMMENT) { // last piece still alive and not comment?
1562: if(!pc.string_start)
1563: pc.string_start=begin_pos;
1.59 paf 1564: // append it
1.206 paf 1565: pc.string.append_strdup_know_length(begin, end-begin);
1.30 paf 1566: }
1.59 paf 1567: }
1.206 paf 1568: if(!pc.string.is_empty()) { // something accumulated?
1569: // create STRING value: array of OP_VALUE+origin+vstring
1570: *lvalp=VL(
1571: new VString(*new String(pc.string, String::L_CLEAN)),
1572: pc.file_no, pc.string_start.line, pc.string_start.col);
1.10 paf 1573: // new pieces storage
1.206 paf 1574: pc.string.clear();
1575: pc.string_start.clear();
1.58 paf 1576: // make current result be pending for next call, return STRING for now
1.206 paf 1577: pc.pending_state=result; result=STRING;
1.58 paf 1578: }
1.67 paf 1579: if(skip_analized) {
1.206 paf 1580: pc.source+=skip_analized; pc.pos.col+=skip_analized;
1.1 paf 1581: }
1.58 paf 1582: return result;
1.1 paf 1583: }
1584:
1.206 paf 1585: static int real_yyerror(Parse_control *pc, char *s) { // Called by yyparse on error
1.114 paf 1586: strncpy(PC.error, s, MAX_STRING);
1.1 paf 1587: return 1;
1.110 paf 1588: }
1.1 paf 1589:
1.110 paf 1590: static void yyprint(FILE *file, int type, YYSTYPE value) {
1591: if(type==STRING)
1.206 paf 1592: fprintf(file, " \"%s\"", LA2S(*value)->cstr());
1.110 paf 1593: }
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