Annotation of parser3/src/main/compile.y, revision 1.242
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:
1.242 ! misha 8: $Id: compile.y,v 1.241 2009-05-20 13:22:59 misha Exp $
1.88 paf 9: */
10:
1.106 paf 11: /**
12: @todo parser4:
13: - cache compiled code from request to request. to do that...
14: -#: make method definitions, @CLASS, @BASE, @USE instructions,
1.88 paf 15: which would be executed afterwards, and actions
16: now performed at compile time would be delayed to run time.
1.106 paf 17: -#: make cache expiration on time and on disk-change of class source
18: -#: in apache use subpools for compiled class storage
19: -#: in iis make up specialized Pool object for that
1.24 paf 20: */
21:
1.206 paf 22: #define YYSTYPE ArrayOperation*
1.9 paf 23: #define YYPARSE_PARAM pc
24: #define YYLEX_PARAM pc
25: #define YYDEBUG 1
1.106 paf 26: #define YYERROR_VERBOSE 1
1.206 paf 27: #define yyerror(msg) real_yyerror((Parse_control *)pc, msg)
1.9 paf 28: #define YYPRINT(file, type, value) yyprint(file, type, value)
1.1 paf 29:
1.206 paf 30: // includes
31:
1.1 paf 32: #include "compile_tools.h"
1.8 paf 33: #include "pa_value.h"
1.12 paf 34: #include "pa_request.h"
1.39 paf 35: #include "pa_vobject.h"
1.52 paf 36: #include "pa_vdouble.h"
1.98 paf 37: #include "pa_globals.h"
1.141 parser 38: #include "pa_vvoid.h"
1.200 paf 39: #include "pa_vmethod_frame.h"
1.39 paf 40:
1.206 paf 41: // defines
42:
1.97 paf 43: #define USE_CONTROL_METHOD_NAME "USE"
1.226 misha 44: #define OPTIONS_CONTROL_METHOD_NAME "OPTIONS"
45: #define OPTION_ALL_VARS_LOCAL_NAME "locals"
1.230 misha 46: #define OPTION_PARTIAL_CLASS "partial"
1.238 misha 47: #define REM_OPERATOR_NAME "rem"
1.1 paf 48:
1.206 paf 49: // forwards
50:
51: static int real_yyerror(Parse_control* pc, char* s);
52: static void yyprint(FILE* file, int type, YYSTYPE value);
53: static int yylex(YYSTYPE* lvalp, void* pc);
1.1 paf 54:
1.216 paf 55: static const VBool vfalse(false);
56: static const VBool vtrue(true);
57: static const VVoid vvoid;
58:
1.8 paf 59: // local convinient inplace typecast & var
1.205 paf 60: #undef PC
1.206 paf 61: #define PC (*(Parse_control *)pc)
62: #undef POOL
1.114 paf 63: #define POOL (*PC.pool)
1.107 paf 64: #ifndef DOXYGEN
1.1 paf 65: %}
66:
67: %pure_parser
68:
1.13 paf 69: %token EON
1.4 paf 70: %token STRING
1.1 paf 71: %token BOGUS
1.55 paf 72:
1.58 paf 73: %token BAD_STRING_COMPARISON_OPERATOR
1.114 paf 74: %token BAD_HEX_LITERAL
1.171 parser 75: %token BAD_METHOD_DECL_START
1.193 paf 76: %token BAD_METHOD_PARAMETER_NAME_CHARACTER
1.209 paf 77: %token BAD_NONWHITESPACE_CHARACTER_IN_EXPLICIT_RESULT_MODE
1.58 paf 78:
1.59 paf 79: %token LAND "&&"
1.58 paf 80: %token LOR "||"
1.193 paf 81: %token LXOR "!||"
82: %token NXOR "!|"
1.58 paf 83:
84: %token NLE "<="
85: %token NGE ">="
86: %token NEQ "=="
87: %token NNE "!="
1.195 paf 88: %token NSL "<<"
89: %token NSR ">>"
1.58 paf 90:
91: %token SLT "lt"
92: %token SGT "gt"
93: %token SLE "le"
94: %token SGE "ge"
95: %token SEQ "eq"
96: %token SNE "ne"
97:
1.67 paf 98: %token DEF "def"
99: %token IN "in"
100: %token FEXISTS "-f"
1.127 paf 101: %token DEXISTS "-d"
1.95 paf 102: %token IS "is"
1.67 paf 103:
1.216 paf 104: %token LITERAL_TRUE "true"
105: %token LITERAL_FALSE "false"
106:
1.57 paf 107: /* logical */
1.193 paf 108: %left "!||"
1.57 paf 109: %left "||"
110: %left "&&"
1.131 paf 111: %left '<' '>' "<=" ">=" "lt" "gt" "le" "ge"
112: %left "==" "!=" "eq" "ne"
113: %left "is" "def" "in" "-f" "-d"
1.57 paf 114:
115: /* bitwise */
1.193 paf 116: %left "!|"
1.131 paf 117: %left '|'
118: %left '&'
1.202 paf 119: %left "<<" ">>"
1.57 paf 120:
1.56 paf 121: /* numerical */
1.202 paf 122: %left '+' '-'
123: %left '*' '/' '\\' '%'
124: %left NUNARY /* unary - + */
125:
126: /* out-of-group */
127: %left '~' /* bitwise */
128: %left '!' /* logical */
1.1 paf 129:
130: %%
1.195 paf 131: all:
1.10 paf 132: one_big_piece {
1.206 paf 133: Method& method=*new Method(Method::CT_ANY,
1.81 paf 134: 0, 0, /*min, max numbered_params_count*/
1.75 paf 135: 0/*param_names*/, 0/*local_names*/,
136: $1/*parser_code*/, 0/*native_code*/);
1.206 paf 137: PC.cclass->add_method(PC.alias_method(main_method_name), method);
1.10 paf 138: }
139: | methods;
140:
141: methods: method | methods method;
142: one_big_piece: maybe_codes;
143:
1.34 paf 144: method: control_method | code_method;
145:
146: control_method: '@' STRING '\n'
1.132 paf 147: maybe_control_strings {
1.206 paf 148: const String& command=*LA2S(*$2);
1.34 paf 149: YYSTYPE strings_code=$4;
1.206 paf 150: if(strings_code->count()<1*OPERATIONS_PER_OPVALUE) {
1.114 paf 151: strcpy(PC.error, "@");
152: strcat(PC.error, command.cstr());
153: strcat(PC.error, " is empty");
1.37 paf 154: YYERROR;
155: }
1.74 paf 156: if(command==CLASS_NAME) {
1.206 paf 157: if(strings_code->count()==1*OPERATIONS_PER_OPVALUE) {
1.73 paf 158: // new class' name
1.206 paf 159: const String& name=*LA2S(*strings_code);
1.73 paf 160: // creating the class
1.206 paf 161: VStateless_class* cclass=new VClass;
1.226 misha 162: PC.cclass_new=cclass;
163: PC.cclass_new->set_name(name);
1.73 paf 164: } else {
1.206 paf 165: strcpy(PC.error, "@"CLASS_NAME" must contain only one line with class name (contains more then one)");
1.34 paf 166: YYERROR;
167: }
1.130 paf 168: } else if(command==USE_CONTROL_METHOD_NAME) {
1.206 paf 169: for(size_t i=0; i<strings_code->count(); i+=OPERATIONS_PER_OPVALUE)
170: PC.request.use_file(PC.request.main_class, *LA2S(*strings_code, i));
1.130 paf 171: } else if(command==BASE_NAME) {
1.226 misha 172: if(PC.append){
173: strcpy(PC.error, "can't set base while appending methods to class '");
174: strncat(PC.error, PC.cclass->name().cstr(), MAX_STRING/2);
175: strcat(PC.error, "'");
176: YYERROR;
177: }
178: PC.class_add();
1.188 paf 179: if(PC.cclass->base_class()) { // already changed from default?
1.130 paf 180: strcpy(PC.error, "class already have a base '");
1.226 misha 181: strncat(PC.error, PC.cclass->base_class()->name().cstr(), MAX_STRING/2);
1.130 paf 182: strcat(PC.error, "'");
183: YYERROR;
184: }
1.206 paf 185: if(strings_code->count()==1*OPERATIONS_PER_OPVALUE) {
186: const String& base_name=*LA2S(*strings_code);
187: if(Value* base_class_value=PC.request.classes().get(base_name)) {
188: // @CLASS == @BASE sanity check
189: if(VStateless_class *base_class=base_class_value->get_class()) {
190: if(PC.cclass==base_class) {
191: strcpy(PC.error, "@"CLASS_NAME" equals @"BASE_NAME);
192: YYERROR;
193: }
194: PC.cclass->get_class()->set_base(base_class);
195: } else { // they asked to derive from a class without methods ['env' & co]
196: strcpy(PC.error, base_name.cstr());
197: strcat(PC.error, ": you can not derive from this class in @"BASE_NAME);
198: YYERROR;
199: }
200: } else {
1.130 paf 201: strcpy(PC.error, base_name.cstr());
202: strcat(PC.error, ": undefined class in @"BASE_NAME);
1.73 paf 203: YYERROR;
204: }
1.34 paf 205: } else {
1.130 paf 206: strcpy(PC.error, "@"BASE_NAME" must contain sole name");
1.34 paf 207: YYERROR;
208: }
1.223 misha 209: } else if(command==OPTIONS_CONTROL_METHOD_NAME) {
210: for(size_t i=0; i<strings_code->count(); i+=OPERATIONS_PER_OPVALUE) {
211: const String& option=*LA2S(*strings_code, i);
1.226 misha 212: if(option==OPTION_ALL_VARS_LOCAL_NAME){
213: PC.set_all_vars_local();
1.230 misha 214: } else if(option==OPTION_PARTIAL_CLASS){
215: if(PC.cclass_new){
216: if(VStateless_class* existed=PC.get_existed_class(PC.cclass_new)){
217: if(!PC.reuse_existed_class(existed)){
218: strcpy(PC.error, "can't append methods to '");
219: strncat(PC.error, PC.cclass_new->name().cstr(), MAX_STRING/2);
220: strcat(PC.error, "' - the class wasn't marked as partial");
221: YYERROR;
222: }
1.226 misha 223: } else {
1.230 misha 224: // mark new class as partial. we can add methods to it later.
225: PC.cclass_new->set_partial();
1.226 misha 226: }
1.230 misha 227: } else {
228: strcpy(PC.error, "'"OPTION_PARTIAL_CLASS"' option should be used straight after @"CLASS_NAME);
1.226 misha 229: YYERROR;
230: }
1.223 misha 231: } else {
1.226 misha 232: strcpy(PC.error, "'");
233: strncat(PC.error, option.cstr(), MAX_STRING/2);
234: strcat(PC.error, "' invalid option. valid options are "
1.230 misha 235: "'"OPTION_PARTIAL_CLASS"' and '"OPTION_ALL_VARS_LOCAL_NAME"'");
1.223 misha 236: YYERROR;
237: }
238: }
1.130 paf 239: } else {
240: strcpy(PC.error, "'");
241: strncat(PC.error, command.cstr(), MAX_STRING/2);
242: strcat(PC.error, "' invalid special name. valid names are "
1.223 misha 243: "'"CLASS_NAME"', '"USE_CONTROL_METHOD_NAME"', '"BASE_NAME"' and '"OPTIONS_CONTROL_METHOD_NAME"'.");
1.130 paf 244: YYERROR;
1.34 paf 245: }
246: };
1.132 paf 247: maybe_control_strings: empty | control_strings;
1.206 paf 248: control_strings: control_string | control_strings control_string { $$=$1; P(*$$, *$2) };
1.37 paf 249: control_string: maybe_string '\n';
250: maybe_string: empty | STRING;
1.34 paf 251:
1.222 misha 252: code_method: '@' STRING bracketed_maybe_strings maybe_bracketed_strings maybe_comment '\n' {
1.226 misha 253: PC.class_add();
1.208 paf 254: PC.explicit_result=false;
1.10 paf 255:
256: YYSTYPE params_names_code=$3;
1.206 paf 257: ArrayString* params_names=0;
258: if(int size=params_names_code->count()) {
259: params_names=new ArrayString;
260: for(int i=0; i<size; i+=OPERATIONS_PER_OPVALUE)
261: *params_names+=LA2S(*params_names_code, i);
1.75 paf 262: }
1.10 paf 263:
264: YYSTYPE locals_names_code=$4;
1.206 paf 265: ArrayString* locals_names=0;
1.223 misha 266: bool all_vars_local=false;
1.206 paf 267: if(int size=locals_names_code->count()) {
268: locals_names=new ArrayString;
1.208 paf 269: for(int i=0; i<size; i+=OPERATIONS_PER_OPVALUE) {
270: const String* local_name=LA2S(*locals_names_code, i);
271: if(*local_name==RESULT_VAR_NAME)
272: PC.explicit_result=true;
1.226 misha 273: else if(*local_name==OPTION_ALL_VARS_LOCAL_NAME)
1.223 misha 274: all_vars_local=true;
1.208 paf 275: else
276: *locals_names+=local_name;
277: }
1.75 paf 278: }
1.231 misha 279: if(!all_vars_local && PC.cclass && PC.cclass->is_vars_local())
1.223 misha 280: all_vars_local=true;
1.10 paf 281:
1.208 paf 282: Method* method=new Method(
1.206 paf 283: //name,
1.122 paf 284: Method::CT_ANY,
1.81 paf 285: 0, 0/*min,max numbered_params_count*/,
1.76 paf 286: params_names, locals_names,
1.223 misha 287: 0/*to be filled later in next {} */, 0, all_vars_local);
1.221 misha 288:
1.208 paf 289: *reinterpret_cast<Method**>(&$$)=method;
290:
291: // todo: check [][;result;]
1.222 misha 292: } maybe_codes {
1.231 misha 293: Method& method=*reinterpret_cast<Method*>($7);
294: // fill in the code
295: method.parser_code=$8;
296:
297: // register in class
298: const String& name=*LA2S(*$2);
299: PC.cclass->add_method(PC.alias_method(name), method);
1.8 paf 300: };
1.10 paf 301:
302: maybe_bracketed_strings: empty | bracketed_maybe_strings;
303: bracketed_maybe_strings: '[' maybe_strings ']' {$$=$2};
304: maybe_strings: empty | strings;
1.206 paf 305: strings: STRING | strings ';' STRING { $$=$1; P(*$$, *$3) };
1.10 paf 306:
307: maybe_comment: empty | STRING;
1.1 paf 308:
309: /* codes */
310:
1.10 paf 311: maybe_codes: empty | codes;
312:
1.206 paf 313: codes: code | codes code { $$=$1; P(*$$, *$2) };
1.81 paf 314: code: write_string | action;
1.209 paf 315: action: get | put | call;
1.1 paf 316:
317: /* get */
318:
1.64 paf 319: get: get_value {
1.238 misha 320: $$=N();
321: YYSTYPE code=$1;
1.235 misha 322: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
1.239 misha 323: if(!maybe_change_first_opcode(*code, OP::OP_VALUE__GET_ELEMENT, /*=>*/OP::OP_VALUE__GET_ELEMENT__WRITE))
1.238 misha 324: #endif
325: {
326: size_t count=code->count();
1.239 misha 327: size_t len=6;
328:
329: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_ELEMENT
330: if(
331: count==len
332: && maybe_change_first_opcode(*code, OP::OP_GET_OBJECT_ELEMENT, OP::OP_GET_ELEMENT, /*=>*/OP::OP_GET_OBJECT_ELEMENT__WRITE)
333: ){
334: //P(*$$, *code, 0/*offset*/, count-1/*limit*/); // someday skip last OP_GET_ELEMENT
335: //break;
336: } else
337: #endif
338:
339: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_VAR_ELEMENT
340: if(
341: count==len
342: && maybe_change_first_opcode(*code, OP::OP_GET_OBJECT_VAR_ELEMENT, OP::OP_GET_ELEMENT, /*=>*/OP::OP_GET_OBJECT_VAR_ELEMENT__WRITE)
1.238 misha 343: ){
344: //P(*$$, *code, 0/*offset*/, count-1/*limit*/); // someday skip last OP_GET_ELEMENT
345: //break;
346: } else
347: #endif
1.239 misha 348:
1.238 misha 349: changetail_or_append(*code,
350: OP::OP_GET_ELEMENT, false, /*=>*/OP::OP_GET_ELEMENT__WRITE,
351: /*or */OP::OP_WRITE_VALUE
352: ); /* value=pop; wcontext.write(value) */
353: }
354: P(*$$, *code);
1.1 paf 355: };
1.163 parser 356: get_value: '$' get_name_value { $$=$2 };
1.64 paf 357: get_name_value: name_without_curly_rdive EON | name_in_curly_rdive;
1.1 paf 358: name_in_curly_rdive: '{' name_without_curly_rdive '}' { $$=$2 };
1.44 paf 359: name_without_curly_rdive:
360: name_without_curly_rdive_read
361: | name_without_curly_rdive_class;
1.19 paf 362: name_without_curly_rdive_read: name_without_curly_rdive_code {
1.206 paf 363: $$=N();
1.238 misha 364: YYSTYPE diving_code=$1;
1.206 paf 365: const String* first_name=LA2S(*diving_code);
1.239 misha 366: size_t count=diving_code->count();
1.238 misha 367: // self.xxx... => xxx...
1.206 paf 368: // OP_VALUE+origin+string+OP_GET_ELEMENT+... -> OP_WITH_SELF+...
1.85 paf 369: if(first_name && *first_name==SELF_ELEMENT_NAME) {
1.238 misha 370: O(*$$, OP::OP_WITH_SELF); /* stack: starting context */
371: P(*$$, *diving_code,
1.22 paf 372: /* skip over... */
1.239 misha 373: count>=4?4/*OP_VALUE+origin+string+OP_GET_ELEMENTx*/:3/*OP::OP_+origin+string*/);
374: }
375:
376:
377: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_ELEMENT
1.240 misha 378: else if(maybe_make_get_object_element(*$$, *diving_code, count)){
1.239 misha 379: // optimisation for $object.field + ^object.method[
380: }
1.238 misha 381: #endif
1.239 misha 382:
383:
384: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_VAR_ELEMENT
1.240 misha 385: else if(maybe_make_get_object_var_element(*$$, *diving_code, count)){
1.239 misha 386: // optimisation for $object.$var
387: }
1.238 misha 388: #endif
1.239 misha 389:
390:
391: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
392: else if(count==4){ // optimization
393: O(*$$,
394: (PC.in_call_value)
395: ? OP::OP_VALUE__GET_ELEMENT_OR_OPERATOR // ^object[ : OP_VALUE+origin+string+OP_GET_ELEMENT => OP_VALUE__GET_ELEMENT_OR_OPERATOR+origin+string
396: : OP::OP_VALUE__GET_ELEMENT // $object : OP_VALUE+origin+string+OP_GET_ELEMENT => OP_VALUE__GET_ELEMENT+origin+string
397: );
398: P(*$$, *diving_code, 1/*offset*/, 2/*limit*/); // copy origin+value
399: } else {
400: O(*$$, OP::OP_WITH_READ); /* stack: starting context */
401: P(*$$, *diving_code);
402: }
1.233 misha 403: #else
1.239 misha 404: else {
1.238 misha 405: O(*$$, OP::OP_WITH_READ); /* stack: starting context */
1.179 paf 406:
1.238 misha 407: // ^if OP_ELEMENT => ^if OP_ELEMENT_OR_OPERATOR
408: // optimized OP_VALUE+origin+string+OP_GET_ELEMENT. => OP_VALUE+origin+string+OP_GET_ELEMENT_OR_OPERATOR.
1.239 misha 409: if(PC.in_call_value && count==4)
410: diving_code->put(count-1, OP::OP_GET_ELEMENT_OR_OPERATOR);
1.206 paf 411: P(*$$, *diving_code);
1.239 misha 412: }
1.233 misha 413: #endif
1.22 paf 414: /* diving code; stack: current context */
1.1 paf 415: };
1.206 paf 416: name_without_curly_rdive_class: class_prefix name_without_curly_rdive_code { $$=$1; P(*$$, *$2) };
417: name_without_curly_rdive_code: name_advance2 | name_path name_advance2 { $$=$1; P(*$$, *$2) };
1.1 paf 418:
419: /* put */
420:
1.81 paf 421: put: '$' name_expr_wdive construct {
1.241 misha 422: $$=N();
423: #ifdef OPTIMIZE_BYTECODE_CONSTRUCT
424: if(maybe_make_root_or_write_construct(*$$, *$2, *$3)){
1.242 ! misha 425: // $a(1), $.a(1), $a[b], $.a[b], $a($b), $.a($b), $a[$b], $.a[$b]
1.241 misha 426: } else
427: #endif
428: {
429: P(*$$, *$2); /* stack: context,name */
430: P(*$$, *$3); /* stack: context,name,constructor_value */
431: }
1.20 paf 432: };
1.44 paf 433: name_expr_wdive:
1.157 parser 434: name_expr_wdive_root
435: | name_expr_wdive_write
1.44 paf 436: | name_expr_wdive_class;
1.157 parser 437: name_expr_wdive_root: name_expr_dive_code {
1.206 paf 438: $$=N();
1.238 misha 439: YYSTYPE diving_code=$1;
1.206 paf 440: const String* first_name=LA2S(*diving_code);
1.238 misha 441: // $self.xxx... => $xxx...
442: // OP_VALUE+origin+string+OP_GET_ELEMENT+... => OP_WITH_SELF+...
1.85 paf 443: if(first_name && *first_name==SELF_ELEMENT_NAME) {
1.229 misha 444: O(*$$, OP::OP_WITH_SELF); /* stack: starting context */
1.206 paf 445: P(*$$, *diving_code,
1.23 paf 446: /* skip over... */
1.229 misha 447: diving_code->count()>=4?4/*OP::OP_VALUE+origin+string+OP::OP_GET_ELEMENTx*/:3/*OP::OP_+origin+string*/);
1.23 paf 448: } else {
1.229 misha 449: O(*$$, OP::OP_WITH_ROOT); /* stack: starting context */
1.206 paf 450: P(*$$, *diving_code);
1.23 paf 451: }
452: /* diving code; stack: current context */
1.156 parser 453: };
1.157 parser 454: name_expr_wdive_write: '.' name_expr_dive_code {
1.206 paf 455: $$=N();
1.229 misha 456: O(*$$, OP::OP_WITH_WRITE); /* stack: starting context */
1.206 paf 457: P(*$$, *$2); /* diving code; stack: context,name */
1.20 paf 458: };
1.206 paf 459: name_expr_wdive_class: class_prefix name_expr_dive_code { $$=$1; P(*$$, *$2) };
1.20 paf 460:
1.149 parser 461: construct:
1.163 parser 462: construct_square
463: | construct_round
464: | construct_curly
1.149 parser 465: ;
1.211 paf 466: construct_square: '[' {
467: // allow $result_or_other_variable[ letters here any time ]
468: *reinterpret_cast<bool*>(&$$)=PC.explicit_result; PC.explicit_result=false;
469: } any_constructor_code_value {
1.213 paf 470: PC.explicit_result=*reinterpret_cast<bool*>(&$2);
1.211 paf 471: } ']' {
1.149 parser 472: // stack: context, name
1.211 paf 473: $$=$3; // stack: context, name, value
1.229 misha 474: O(*$$, OP::OP_CONSTRUCT_VALUE); /* value=pop; name=pop; context=pop; construct(context,name,value) */
1.81 paf 475: }
476: ;
1.149 parser 477: construct_round: '(' expr_value ')' {
1.206 paf 478: $$=N();
1.229 misha 479: O(*$$, OP::OP_PREPARE_TO_EXPRESSION);
1.149 parser 480: // stack: context, name
1.206 paf 481: P(*$$, *$2); // stack: context, name, value
1.229 misha 482: O(*$$, OP::OP_CONSTRUCT_EXPR); /* value=pop->as_expr_result; name=pop; context=pop; construct(context,name,value) */
1.81 paf 483: }
1.52 paf 484: ;
1.149 parser 485: construct_curly: '{' maybe_codes '}' {
486: // stack: context, name
1.206 paf 487: $$=N();
1.229 misha 488: OA(*$$, OP::OP_CURLY_CODE__CONSTRUCT, $2); /* code=pop; name=pop; context=pop; construct(context,name,junction(code)) */
1.149 parser 489: };
490:
1.55 paf 491: any_constructor_code_value:
1.157 parser 492: void_value /* optimized $var[] case */
1.52 paf 493: | STRING /* optimized $var[STRING] case */
1.55 paf 494: | constructor_code_value /* $var[something complex] */
1.1 paf 495: ;
1.55 paf 496: constructor_code_value: constructor_code {
1.206 paf 497: $$=N();
1.229 misha 498: OA(*$$, OP::OP_OBJECT_POOL, $1); /* stack: empty write context */
1.183 paf 499: /* some code that writes to that context */
500: /* context=pop; stack: context.value() */
1.1 paf 501: };
1.55 paf 502: constructor_code: codes__excluding_sole_str_literal;
1.206 paf 503: codes__excluding_sole_str_literal: action | code codes { $$=$1; P(*$$, *$2) };
1.27 paf 504:
1.1 paf 505: /* call */
506:
1.66 paf 507: call: call_value {
1.238 misha 508: #ifdef OPTIMIZE_BYTECODE_CUT_REM_OPERATOR
509: if((*$1).count())
510: #endif
511: {
512: $$=$1; /* stack: value */
513: changetail_or_append(*$$,
514: OP::OP_CALL, true, /*=>*/ OP::OP_CALL__WRITE,
515: /*or */OP::OP_WRITE_VALUE); /* value=pop; wcontext.write(value) */
516: }
1.66 paf 517: };
1.177 paf 518: call_value: '^' {
1.180 paf 519: PC.in_call_value=true;
1.177 paf 520: }
521: call_name {
1.180 paf 522: PC.in_call_value=false;
1.177 paf 523: }
1.154 parser 524: store_params EON { /* ^field.$method{vasya} */
1.238 misha 525: #ifdef OPTIMIZE_BYTECODE_CUT_REM_OPERATOR
1.242 ! misha 526: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
1.238 misha 527: const String* operator_name=LA2S(*$3, 0, OP::OP_VALUE__GET_ELEMENT_OR_OPERATOR);
1.242 ! misha 528: #else
! 529: const String* operator_name=LA2S(*$3, 1);
! 530: #endif
1.238 misha 531: if(operator_name && *operator_name == REM_OPERATOR_NAME){
532: $$=N();
533: } else
534: #endif
535: {
536: $$=$3; /* with_xxx,diving code; stack: context,method_junction */
1.123 paf 537:
1.238 misha 538: YYSTYPE params_code=$5;
539: if(params_code->count()==3) { // probably [] case. [OP::OP_VALUE+origin+Void]
540: if(Value* value=LA2V(*params_code)) // it is OP_VALUE+origin+value?
541: if(value->is_void()) // value is VVoid?
542: params_code=0; // ^zzz[] case. don't append lone empty param.
543: }
544: /* stack: context, method_junction */
545: OA(*$$, OP::OP_CALL, params_code); // method_frame=make frame(pop junction); ncontext=pop; call(ncontext,method_frame) stack: value
546: }
1.1 paf 547: };
548:
1.43 paf 549: call_name: name_without_curly_rdive;
1.38 paf 550:
1.206 paf 551: store_params: store_param | store_params store_param { $$=$1; P(*$$, *$2) };
1.69 paf 552: store_param:
553: store_square_param
554: | store_round_param
555: | store_curly_param
1.31 paf 556: ;
1.210 paf 557: store_square_param: '[' {
1.211 paf 558: // allow ^call[ letters here any time ]
1.210 paf 559: *reinterpret_cast<bool*>(&$$)=PC.explicit_result; PC.explicit_result=false;
560: } store_code_param_parts {
1.213 paf 561: PC.explicit_result=*reinterpret_cast<bool*>(&$2);
1.210 paf 562: } ']' {$$=$3};
1.69 paf 563: store_round_param: '(' store_expr_param_parts ')' {$$=$2};
1.94 paf 564: store_curly_param: '{' store_curly_param_parts '}' {$$=$2};
1.69 paf 565: store_code_param_parts:
566: store_code_param_part
1.206 paf 567: | store_code_param_parts ';' store_code_param_part { $$=$1; P(*$$, *$3) }
1.69 paf 568: ;
569: store_expr_param_parts:
570: store_expr_param_part
1.206 paf 571: | store_expr_param_parts ';' store_expr_param_part { $$=$1; P(*$$, *$3) }
1.69 paf 572: ;
1.94 paf 573: store_curly_param_parts:
574: store_curly_param_part
1.206 paf 575: | store_curly_param_parts ';' store_curly_param_part { $$=$1; P(*$$, *$3) }
1.94 paf 576: ;
1.120 paf 577: store_code_param_part: code_param_value {
1.32 paf 578: $$=$1;
1.120 paf 579: };
1.214 paf 580: store_expr_param_part: expr_value {
581: YYSTYPE expr_code=$1;
1.215 paf 582: if(expr_code->count()==3
1.234 misha 583: && (*expr_code)[0].code==OP::OP_VALUE) { // optimizing (double/bool/incidently 'string' too) case. [OP::OP_VALUE+origin+Double]. no evaluating
1.214 paf 584: $$=expr_code;
585: } else {
1.238 misha 586: YYSTYPE code=N();
1.229 misha 587: O(*code, OP::OP_PREPARE_TO_EXPRESSION);
1.214 paf 588: P(*code, *expr_code);
1.229 misha 589: O(*code, OP::OP_WRITE_EXPR_RESULT);
1.214 paf 590: $$=N();
1.229 misha 591: OA(*$$, OP::OP_EXPR_CODE__STORE_PARAM, code);
1.214 paf 592: }
1.69 paf 593: };
1.94 paf 594: store_curly_param_part: maybe_codes {
1.206 paf 595: $$=N();
1.229 misha 596: OA(*$$, OP::OP_CURLY_CODE__STORE_PARAM, $1);
1.94 paf 597: };
1.120 paf 598: code_param_value:
1.157 parser 599: void_value /* optimized [;...] case */
1.120 paf 600: | STRING /* optimized [STRING] case */
601: | constructor_code_value /* [something complex] */
602: ;
1.1 paf 603:
604: /* name */
605:
1.206 paf 606: name_expr_dive_code: name_expr_value | name_path name_expr_value { $$=$1; P(*$$, *$2) };
1.1 paf 607:
1.206 paf 608: name_path: name_step | name_path name_step { $$=$1; P(*$$, *$2) };
1.1 paf 609: name_step: name_advance1 '.';
610: name_advance1: name_expr_value {
1.177 paf 611: // we know that name_advance1 not called from ^xxx context
612: // so we'll not check for operator call possibility as we do in name_advance2
613:
1.1 paf 614: /* stack: context */
615: $$=$1; /* stack: context,name */
1.229 misha 616: O(*$$, OP::OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */
1.1 paf 617: };
618: name_advance2: name_expr_value {
619: /* stack: context */
620: $$=$1; /* stack: context,name */
1.229 misha 621: O(*$$, OP::OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */
1.1 paf 622: }
1.4 paf 623: | STRING BOGUS
1.1 paf 624: ;
625: name_expr_value:
1.4 paf 626: STRING /* subname_is_const */
1.1 paf 627: | name_expr_subvar_value /* $subname_is_var_value */
1.160 parser 628: | name_expr_with_subvar_value /* xxx$part_of_subname_is_var_value */
1.166 parser 629: | name_square_code_value /* [codes] */
1.1 paf 630: ;
631: name_expr_subvar_value: '$' subvar_ref_name_rdive {
632: $$=$2;
1.229 misha 633: O(*$$, OP::OP_GET_ELEMENT);
1.1 paf 634: };
1.4 paf 635: name_expr_with_subvar_value: STRING subvar_get_writes {
1.238 misha 636: YYSTYPE code;
1.183 paf 637: {
1.206 paf 638: change_string_literal_to_write_string_literal(*(code=$1));
639: P(*code, *$2);
1.183 paf 640: }
1.206 paf 641: $$=N();
1.229 misha 642: OA(*$$, OP::OP_STRING_POOL, code);
1.1 paf 643: };
1.212 paf 644: name_square_code_value: '[' {
645: // allow $result_or_other_variable[ letters here any time ]
646: *reinterpret_cast<bool*>(&$$)=PC.explicit_result; PC.explicit_result=false;
647: } codes {
1.213 paf 648: PC.explicit_result=*reinterpret_cast<bool*>(&$2);
1.212 paf 649: } ']' {
1.206 paf 650: $$=N();
1.229 misha 651: OA(*$$, OP::OP_OBJECT_POOL, $3); /* stack: empty write context */
1.183 paf 652: /* some code that writes to that context */
653: /* context=pop; stack: context.value() */
1.160 parser 654: };
1.154 parser 655: subvar_ref_name_rdive: STRING {
1.206 paf 656: $$=N();
1.229 misha 657: O(*$$, OP::OP_WITH_READ);
1.206 paf 658: P(*$$, *$1);
1.1 paf 659: };
1.206 paf 660: subvar_get_writes: subvar__get_write | subvar_get_writes subvar__get_write { $$=$1; P(*$$, *$2) };
1.1 paf 661: subvar__get_write: '$' subvar_ref_name_rdive {
662: $$=$2;
1.229 misha 663: O(*$$, OP::OP_GET_ELEMENT__WRITE);
1.42 paf 664: };
665:
1.154 parser 666: class_prefix:
667: class_static_prefix
668: | class_constructor_prefix
669: ;
1.155 parser 670: class_static_prefix: STRING ':' {
671: $$=$1; // stack: class name string
1.206 paf 672: if(*LA2S(*$$) == BASE_NAME) { // pseudo BASE class
673: if(VStateless_class* base=PC.cclass->base_class()) {
674: change_string_literal_value(*$$, base->name());
1.189 paf 675: } else {
676: strcpy(PC.error, "no base class declared");
677: YYERROR;
678: }
679: }
1.233 misha 680: #ifdef OPTIMIZE_BYTECODE_GET_CLASS
1.238 misha 681: // optimized OP_VALUE+origin+string+OP_GET_CLASS => OP_VALUE__GET_CLASS+origin+string
1.239 misha 682: maybe_change_first_opcode(*$$, OP::OP_VALUE, OP::OP_VALUE__GET_CLASS, true/*assert if top opcode != OP_VALUE*/)
1.233 misha 683: #else
1.229 misha 684: O(*$$, OP::OP_GET_CLASS);
1.233 misha 685: #endif
1.155 parser 686: };
687: class_constructor_prefix: class_static_prefix ':' {
1.154 parser 688: $$=$1;
1.180 paf 689: if(!PC.in_call_value) {
1.154 parser 690: strcpy(PC.error, ":: not allowed here");
691: YYERROR;
692: }
1.229 misha 693: O(*$$, OP::OP_PREPARE_TO_CONSTRUCT_OBJECT);
1.1 paf 694: };
695:
1.53 paf 696:
1.56 paf 697: /* expr */
1.53 paf 698:
1.214 paf 699: expr_value: expr;
1.56 paf 700: expr:
1.214 paf 701: double_or_STRING
1.216 paf 702: | true_value
703: | false_value
1.64 paf 704: | get_value
1.66 paf 705: | call_value
1.216 paf 706: | '"' string_inside_quotes_value '"' { $$ = $2 }
707: | '\'' string_inside_quotes_value '\'' { $$ = $2 }
1.60 paf 708: | '(' expr ')' { $$ = $2; }
709: /* stack: operand // stack: @operand */
1.229 misha 710: | '-' expr %prec NUNARY { $$=$2; O(*$$, OP::OP_NEG) }
1.202 paf 711: | '+' expr %prec NUNARY { $$=$2 }
1.229 misha 712: | '~' expr { $$=$2; O(*$$, OP::OP_INV) }
713: | '!' expr { $$=$2; O(*$$, OP::OP_NOT) }
714: | "def" expr { $$=$2; O(*$$, OP::OP_DEF) }
715: | "in" expr { $$=$2; O(*$$, OP::OP_IN) }
716: | "-f" expr { $$=$2; O(*$$, OP::OP_FEXISTS) }
717: | "-d" expr { $$=$2; O(*$$, OP::OP_DEXISTS) }
1.60 paf 718: /* stack: a,b // stack: a@b */
1.229 misha 719: | expr '-' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_SUB) }
720: | expr '+' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_ADD) }
721: | expr '*' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_MUL) }
722: | expr '/' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_DIV) }
723: | expr '%' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_MOD) }
724: | expr '\\' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_INTDIV) }
725: | expr "<<" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_SL) }
726: | expr ">>" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_SR) }
727: | expr '&' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_AND) }
728: | expr '|' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_OR) }
729: | expr "!|" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_XOR) }
730: | expr "&&" expr { $$=$1; OA(*$$, OP::OP_NESTED_CODE, $3); O(*$$, OP::OP_LOG_AND) }
731: | expr "||" expr { $$=$1; OA(*$$, OP::OP_NESTED_CODE, $3); O(*$$, OP::OP_LOG_OR) }
732: | expr "!||" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_LOG_XOR) }
733: | expr '<' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_LT) }
734: | expr '>' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_GT) }
735: | expr "<=" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_LE) }
736: | expr ">=" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_GE) }
737: | expr "==" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_EQ) }
738: | expr "!=" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_NE) }
739: | expr "lt" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_LT) }
740: | expr "gt" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_GT) }
741: | expr "le" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_LE) }
742: | expr "ge" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_GE) }
743: | expr "eq" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_EQ) }
744: | expr "ne" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_NE) }
745: | expr "is" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_IS) }
1.56 paf 746: ;
1.214 paf 747:
748: double_or_STRING: STRING {
1.238 misha 749: // optimized OP_STRING => OP_VALUE for doubles
1.214 paf 750: maybe_change_string_literal_to_double_literal(*($$=$1));
751: };
1.55 paf 752:
1.65 paf 753: string_inside_quotes_value: maybe_codes {
1.238 misha 754: #ifdef OPTIMIZE_BYTECODE_STRING_POOL
755: // it brakes ^if(" 09 "){...}
756: YYSTYPE code=$1;
757: $$=N();
1.239 misha 758: if(code->count()==3 && maybe_change_first_opcode(*code, OP::OP_STRING__WRITE, OP::OP_VALUE)){
1.238 misha 759: // optimized OP_STRING__WRITE+origin+value => OP_VALUE+origin+value without starting OP_STRING_POOL
760: P(*$$, *code);
761: } else {
762: OA(*$$, OP::OP_STRING_POOL, code); /* stack: empty write context */
763: }
764: #else
1.206 paf 765: $$=N();
1.229 misha 766: OA(*$$, OP::OP_STRING_POOL, $1); /* stack: empty write context */
1.238 misha 767: #endif
1.183 paf 768: /* some code that writes to that context */
769: /* context=pop; stack: context.get_string() */
1.53 paf 770: };
1.1 paf 771:
1.27 paf 772: /* basics */
1.1 paf 773:
1.81 paf 774: write_string: STRING {
1.238 misha 775: // optimized OP_STRING+OP_WRITE_VALUE => OP_STRING__WRITE
1.209 paf 776: change_string_literal_to_write_string_literal(*($$=$1))
1.54 paf 777: };
778:
1.216 paf 779: void_value: /* empty */ { $$=VL(/*we know that we will not change it*/const_cast<VVoid*>(&vvoid), 0, 0, 0) }
780: true_value: "true" { $$ = VL(/*we know that we will not change it*/const_cast<VBool*>(&vtrue), 0, 0, 0) }
781: false_value: "false" { $$ = VL(/*we know that we will not change it*/const_cast<VBool*>(&vfalse), 0, 0, 0) }
782:
1.206 paf 783: empty: /* empty */ { $$=N() };
1.1 paf 784:
785: %%
1.105 paf 786: #endif
1.1 paf 787:
788: /*
789: 000$111(2222)00
790: 000$111{3333}00
1.9 paf 791: $,^: push,=0
1.1 paf 792: 1:( { break=pop
793: 2:( ) pop
794: 3:{ } pop
795:
796: 000^111(2222)4444{33333}4000
1.9 paf 797: $,^: push,=0
1.1 paf 798: 1:( { break=pop
799: 2:( )=4
800: 3:{ }=4
801: 4:[^({]=pop
802: */
803:
1.206 paf 804: inline void ungetc(Parse_control& pc, uint last_line_end_col) {
805: pc.source--;
806: if(pc.pos.col==0) {
807: --pc.pos.line; pc.pos.col=last_line_end_col;
808: } else
809: --pc.pos.col;
810:
811: }
812: static int yylex(YYSTYPE *lvalp, void *apc) {
813: register Parse_control& pc=*static_cast<Parse_control*>(apc);
814:
815: #define lexical_brackets_nestage pc.brackets_nestages[pc.ls_sp]
1.48 paf 816: #define RC {result=c; goto break2; }
1.1 paf 817:
1.206 paf 818: register int c;
819: int result;
1.1 paf 820:
1.206 paf 821: if(pc.pending_state) {
822: result=pc.pending_state;
823: pc.pending_state=0;
1.1 paf 824: return result;
825: }
826:
1.206 paf 827: const char *begin=pc.source;
828: Pos begin_pos=pc.pos;
1.91 paf 829: const char *end;
1.67 paf 830: int skip_analized=0;
1.50 paf 831: while(true) {
1.206 paf 832: c=*(end=(pc.source++));
833: // fprintf(stderr, "\nchar: %c %02X; nestage: %d, sp=%d", c, c, lexical_brackets_nestage, pc.sp);
1.1 paf 834:
1.208 paf 835: if(c=='\n')
1.206 paf 836: pc.pos_next_line();
1.208 paf 837: else
1.206 paf 838: pc.pos_next_c(c);
1.208 paf 839: // fprintf(stderr, "\nchar: %c file(%d:%d)", c, pc.pos.line, pc.pos.col);
1.73 paf 840:
1.208 paf 841: if(pc.pos.col==0+1 && c=='@') {
1.206 paf 842: if(pc.ls==LS_DEF_SPECIAL_BODY) {
1.175 paf 843: // @SPECIAL
844: // ...
845: // @<here =
1.206 paf 846: pop_LS(pc); // exiting from LS_DEF_SPECIAL_BODY state
1.175 paf 847: } // continuing checks
1.206 paf 848: if(pc.ls==LS_USER) {
849: push_LS(pc, LS_DEF_NAME);
1.171 parser 850: RC;
1.175 paf 851: } else // @ in first column inside some code [when could that be?]
1.171 parser 852: result=BAD_METHOD_DECL_START;
853: goto break2;
1.209 paf 854: }
855: if(c=='^') {
1.206 paf 856: if(pc.ls==LS_METHOD_AFTER) {
1.203 paf 857: // handle after-method situation
1.206 paf 858: pop_LS(pc);
1.203 paf 859: result=EON;
860: skip_analized=-1; // return to punctuation afterwards to assure it's literality
861: goto break2;
862: }
1.206 paf 863: switch(pc.ls) {
1.169 parser 864: case LS_EXPRESSION_VAR_NAME_WITH_COLON:
865: case LS_EXPRESSION_VAR_NAME_WITHOUT_COLON:
866: case LS_VAR_NAME_SIMPLE_WITH_COLON:
867: case LS_VAR_NAME_SIMPLE_WITHOUT_COLON:
868: case LS_VAR_NAME_CURLY:
869: case LS_METHOD_NAME:
1.194 paf 870: case LS_USER_COMMENT:
1.169 parser 871: case LS_DEF_COMMENT:
872: // no literals in names, please
873: break;
874: default:
1.206 paf 875: switch(*pc.source) {
1.165 parser 876: // ^escaping some punctuators
1.228 misha 877: case '^': case '$': case ';': case '@':
1.126 paf 878: case '(': case ')':
1.48 paf 879: case '[': case ']':
880: case '{': case '}':
1.172 parser 881: case '"': case ':':
1.40 paf 882: if(end!=begin) {
1.206 paf 883: if(!pc.string_start)
884: pc.string_start=begin_pos;
1.40 paf 885: // append piece till ^
1.206 paf 886: pc.string.append_strdup_know_length(begin, end-begin);
1.40 paf 887: }
1.63 paf 888: // reset piece 'begin' position & line
1.206 paf 889: begin=pc.source; // ->punctuation
890: begin_pos=pc.pos;
1.203 paf 891: // skip over _ after ^
1.206 paf 892: pc.source++; pc.pos.col++;
1.203 paf 893: // skip analysis = forced literal
894: continue;
1.114 paf 895:
896: // converting ^#HH into char(hex(HH))
897: case '#':
898: if(end!=begin) {
1.206 paf 899: if(!pc.string_start)
900: pc.string_start=begin_pos;
1.114 paf 901: // append piece till ^
1.206 paf 902: pc.string.append_strdup_know_length(begin, end-begin);
1.114 paf 903: }
904: // #HH ?
1.228 misha 905: if(pc.source[1] && isxdigit(pc.source[1]) && pc.source[2] && isxdigit(pc.source[2])) {
1.218 paf 906: char c=(char)(
1.206 paf 907: hex_value[(unsigned char)pc.source[1]]*0x10+
1.218 paf 908: hex_value[(unsigned char)pc.source[2]]);
1.206 paf 909: if(c==0) {
1.114 paf 910: result=BAD_HEX_LITERAL;
911: goto break2; // wrong hex value[no ^#00 chars allowed]: bail out
912: }
913: // append char(hex(HH))
1.206 paf 914: pc.string.append(c);
1.114 paf 915: // skip over ^#HH
1.206 paf 916: pc.source+=3;
917: pc.pos.col+=3;
1.114 paf 918: // reset piece 'begin' position & line
1.206 paf 919: begin=pc.source; // ->after ^#HH
920: begin_pos=pc.pos;
1.203 paf 921: // skip analysis = forced literal
1.114 paf 922: continue;
923: }
1.228 misha 924: // just escaped char
925: // reset piece 'begin' position & line
926: begin=pc.source;
927: begin_pos=pc.pos;
928: // skip over _ after ^
929: pc.source++; pc.pos.col++;
930: // skip analysis = forced literal
931: continue;
1.1 paf 932: }
1.169 parser 933: break;
1.203 paf 934: }
1.169 parser 935: }
1.113 paf 936: // #comment start skipping
1.206 paf 937: if(c=='#' && pc.pos.col==1) {
1.112 paf 938: if(end!=begin) {
1.206 paf 939: if(!pc.string_start)
940: pc.string_start=begin_pos;
1.112 paf 941: // append piece till #
1.206 paf 942: pc.string.append_strdup_know_length(begin, end-begin);
1.112 paf 943: }
944: // fall into COMMENT lexical state [wait for \n]
1.206 paf 945: push_LS(pc, LS_USER_COMMENT);
1.175 paf 946: continue;
1.112 paf 947: }
1.206 paf 948: switch(pc.ls) {
1.10 paf 949:
950: // USER'S = NOT OURS
1.1 paf 951: case LS_USER:
1.206 paf 952: case LS_NAME_SQUARE_PART: // name.[here].xxx
953: if(pc.trim_bof)
1.153 parser 954: switch(c) {
955: case '\n': case ' ': case '\t':
1.206 paf 956: begin=pc.source;
957: begin_pos=pc.pos;
1.152 parser 958: continue; // skip it
1.153 parser 959: default:
1.206 paf 960: pc.trim_bof=false;
1.152 parser 961: }
1.48 paf 962: switch(c) {
963: case '$':
1.206 paf 964: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 965: RC;
966: case '^':
1.206 paf 967: push_LS(pc, LS_METHOD_NAME);
1.48 paf 968: RC;
1.166 parser 969: case ']':
1.206 paf 970: if(pc.ls==LS_NAME_SQUARE_PART)
1.166 parser 971: if(--lexical_brackets_nestage==0) {// $name.[co<]?>de<]?>
1.206 paf 972: pop_LS(pc); // $name.[co<]>de<]!>
1.166 parser 973: RC;
974: }
1.160 parser 975: break;
1.166 parser 976: case '[': // $name.[co<[>de]
1.206 paf 977: if(pc.ls==LS_NAME_SQUARE_PART)
1.166 parser 978: lexical_brackets_nestage++;
1.161 parser 979: break;
1.112 paf 980: }
1.209 paf 981: if(pc.explicit_result && c)
982: switch(c) {
983: case '\n': case ' ': case '\t':
984: begin=pc.source;
985: begin_pos=pc.pos;
986: continue; // skip it
987: default:
988: result=BAD_NONWHITESPACE_CHARACTER_IN_EXPLICIT_RESULT_MODE;
989: goto break2;
990: }
1.112 paf 991: break;
992:
993: // #COMMENT
1.194 paf 994: case LS_USER_COMMENT:
1.112 paf 995: if(c=='\n') {
996: // skip comment
1.206 paf 997: begin=pc.source;
998: begin_pos=pc.pos;
1.112 paf 999:
1.206 paf 1000: pop_LS(pc);
1.112 paf 1001: continue;
1.1 paf 1002: }
1.48 paf 1003: break;
1004:
1005: // STRING IN EXPRESSION
1.145 parser 1006: case LS_EXPRESSION_STRING_QUOTED:
1007: case LS_EXPRESSION_STRING_APOSTROFED:
1.48 paf 1008: switch(c) {
1009: case '"':
1.145 parser 1010: case '\'':
1011: if(
1.206 paf 1012: pc.ls == LS_EXPRESSION_STRING_QUOTED && c=='"' ||
1013: pc.ls == LS_EXPRESSION_STRING_APOSTROFED && c=='\'') {
1014: pop_LS(pc); //"abc". | 'abc'.
1.145 parser 1015: RC;
1016: }
1017: break;
1.48 paf 1018: case '$':
1.206 paf 1019: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1020: RC;
1021: case '^':
1.206 paf 1022: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1023: RC;
1.10 paf 1024: }
1025: break;
1026:
1027: // METHOD DEFINITION
1028: case LS_DEF_NAME:
1.48 paf 1029: switch(c) {
1030: case '[':
1.206 paf 1031: pc.ls=LS_DEF_PARAMS;
1.48 paf 1032: RC;
1033: case '\n':
1.206 paf 1034: pc.ls=LS_DEF_SPECIAL_BODY;
1.48 paf 1035: RC;
1.10 paf 1036: }
1037: break;
1.48 paf 1038:
1.10 paf 1039: case LS_DEF_PARAMS:
1.48 paf 1040: switch(c) {
1.192 paf 1041: case '$': // common error
1.193 paf 1042: result=BAD_METHOD_PARAMETER_NAME_CHARACTER;
1043: goto break2;
1.48 paf 1044: case ';':
1045: RC;
1046: case ']':
1.206 paf 1047: pc.ls=*pc.source=='['?LS_DEF_LOCALS:LS_DEF_COMMENT;
1.48 paf 1048: RC;
1.49 paf 1049: case '\n': // wrong. bailing out
1.206 paf 1050: pop_LS(pc);
1.48 paf 1051: RC;
1.10 paf 1052: }
1053: break;
1.48 paf 1054:
1.10 paf 1055: case LS_DEF_LOCALS:
1.48 paf 1056: switch(c) {
1057: case '[':
1058: case ';':
1059: RC;
1060: case ']':
1.206 paf 1061: pc.ls=LS_DEF_COMMENT;
1.48 paf 1062: RC;
1063: case '\n': // wrong. bailing out
1.206 paf 1064: pop_LS(pc);
1.48 paf 1065: RC;
1.10 paf 1066: }
1067: break;
1.48 paf 1068:
1.10 paf 1069: case LS_DEF_COMMENT:
1070: if(c=='\n') {
1.206 paf 1071: pop_LS(pc);
1.48 paf 1072: RC;
1.37 paf 1073: }
1074: break;
1075:
1.48 paf 1076: case LS_DEF_SPECIAL_BODY:
1.175 paf 1077: if(c=='\n')
1.48 paf 1078: RC;
1079: break;
1080:
1081: // (EXPRESSION)
1.69 paf 1082: case LS_VAR_ROUND:
1083: case LS_METHOD_ROUND:
1.48 paf 1084: switch(c) {
1085: case ')':
1086: if(--lexical_brackets_nestage==0)
1.206 paf 1087: if(pc.ls==LS_METHOD_ROUND) // method round param ended
1088: pc.ls=LS_METHOD_AFTER; // look for method end
1089: else // pc.ls==LS_VAR_ROUND // variable constructor ended
1090: pop_LS(pc); // return to normal life
1.48 paf 1091: RC;
1.194 paf 1092: case '#': // comment start skipping
1093: if(end!=begin) {
1.206 paf 1094: if(!pc.string_start)
1095: pc.string_start=begin_pos;
1.194 paf 1096: // append piece till #
1.206 paf 1097: pc.string.append_strdup_know_length(begin, end-begin);
1.194 paf 1098: }
1099: // fall into COMMENT lexical state [wait for \n]
1.206 paf 1100: push_LS(pc, LS_EXPRESSION_COMMENT);
1.194 paf 1101: lexical_brackets_nestage=1;
1102: continue;
1.48 paf 1103: case '$':
1.206 paf 1104: push_LS(pc, LS_EXPRESSION_VAR_NAME_WITH_COLON);
1.48 paf 1105: RC;
1106: case '^':
1.206 paf 1107: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1108: RC;
1109: case '(':
1110: lexical_brackets_nestage++;
1111: RC;
1.67 paf 1112: case '-':
1.206 paf 1113: switch(*pc.source) {
1.127 paf 1114: case 'f': // -f
1.67 paf 1115: skip_analized=1;
1116: result=FEXISTS;
1.127 paf 1117: goto break2;
1118: case 'd': // -d
1119: skip_analized=1;
1120: result=DEXISTS;
1121: goto break2;
1.191 paf 1122: default: // minus
1.67 paf 1123: result=c;
1.127 paf 1124: goto break2;
1125: }
1.67 paf 1126: goto break2;
1.173 paf 1127: case '+': case '*': case '/': case '%': case '\\':
1.58 paf 1128: case '~':
1.48 paf 1129: case ';':
1130: RC;
1.193 paf 1131: case '&': case '|':
1.206 paf 1132: if(*pc.source==c) { // && ||
1.193 paf 1133: result=c=='&'?LAND:LOR;
1.67 paf 1134: skip_analized=1;
1.58 paf 1135: } else
1136: result=c;
1137: goto break2;
1.193 paf 1138: case '!':
1.206 paf 1139: switch(pc.source[0]) {
1.193 paf 1140: case '|': // !| !||
1141: skip_analized=1;
1.206 paf 1142: if(pc.source[1]=='|') {
1.193 paf 1143: skip_analized++;
1144: result=LXOR;
1145: } else
1146: result=NXOR;
1147: goto break2;
1148: case '=': // !=
1149: skip_analized=1;
1150: result=NNE;
1151: goto break2;
1152: }
1153: RC;
1.195 paf 1154:
1155: case '<': // <<, <=, <
1.206 paf 1156: switch(*pc.source) {
1.195 paf 1157: case '<': // <[<]
1158: skip_analized=1; result=NSL; break;
1159: case '=': // <[=]
1160: skip_analized=1; result=NLE; break;
1161: default: // <[]
1162: result=c; break;
1163: }
1164: goto break2;
1165: case '>': // >>, >=, >
1.206 paf 1166: switch(*pc.source) {
1.195 paf 1167: case '>': // >[>]
1168: skip_analized=1; result=NSR; break;
1169: case '=': // >[=]
1170: skip_analized=1; result=NGE; break;
1171: default: // >[]
1172: result=c; break;
1173: }
1174: goto break2;
1175: case '=': // ==
1.206 paf 1176: switch(*pc.source) {
1.195 paf 1177: case '=': // =[=]
1178: skip_analized=1; result=NEQ; break;
1179: default: // =[]
1180: result=c; break; // not used now
1181: }
1.58 paf 1182: goto break2;
1.195 paf 1183:
1.48 paf 1184: case '"':
1.206 paf 1185: push_LS(pc, LS_EXPRESSION_STRING_QUOTED);
1.145 parser 1186: RC;
1187: case '\'':
1.206 paf 1188: push_LS(pc, LS_EXPRESSION_STRING_APOSTROFED);
1.48 paf 1189: RC;
1.50 paf 1190: case 'l': case 'g': case 'e': case 'n':
1.51 paf 1191: if(end==begin) // right after whitespace
1.206 paf 1192: if(isspace(pc.source[1])) {
1193: switch(*pc.source) {
1.117 paf 1194: // case '?': // ok [and bad cases, yacc would bark at them]
1195: case 't': // lt gt [et nt]
1196: result=c=='l'?SLT:c=='g'?SGT:BAD_STRING_COMPARISON_OPERATOR;
1197: skip_analized=1;
1198: goto break2;
1199: case 'e': // le ge ne [ee]
1200: result=c=='l'?SLE:c=='g'?SGE:c=='n'?SNE:BAD_STRING_COMPARISON_OPERATOR;
1201: skip_analized=1;
1202: goto break2;
1203: case 'q': // eq [lq gq nq]
1204: result=c=='e'?SEQ:BAD_STRING_COMPARISON_OPERATOR;
1205: skip_analized=1;
1206: goto break2;
1207: }
1.67 paf 1208: }
1209: break;
1210: case 'i':
1211: if(end==begin) // right after whitespace
1.206 paf 1212: if(isspace(pc.source[1])) {
1213: switch(pc.source[0]) {
1.117 paf 1214: case 'n': // in
1.95 paf 1215: skip_analized=1;
1216: result=IN;
1217: goto break2;
1.117 paf 1218: case 's': // is
1.95 paf 1219: skip_analized=1;
1220: result=IS;
1221: goto break2;
1222: }
1.67 paf 1223: }
1224: break;
1225: case 'd':
1226: if(end==begin) // right after whitespace
1.206 paf 1227: if(pc.source[0]=='e' && pc.source[1]=='f') { // def
1.225 misha 1228: switch(pc.source[2]){
1229: case ' ': case '\t': case '\n': case '"': case '\'': case '^': case '$': // non-quoted string without whitespace after 'def' is not allowed
1230: skip_analized=2;
1231: result=DEF;
1232: goto break2;
1233: }
1234: // error: incorrect char after 'def'
1.50 paf 1235: }
1.48 paf 1236: break;
1.216 paf 1237: case 't':
1238: if(end==begin) // right after whitespace
1.225 misha 1239: if(pc.source[0]=='r' && pc.source[1]=='u' && pc.source[2]=='e') { // true
1.216 paf 1240: skip_analized=3;
1241: result=LITERAL_TRUE;
1242: goto break2;
1243: }
1244: break;
1245: case 'f':
1246: if(end==begin) // right after whitespace
1.225 misha 1247: if(pc.source[0]=='a' && pc.source[1]=='l' && pc.source[2]=='s' && pc.source[3]=='e') { // false
1.216 paf 1248: skip_analized=4;
1249: result=LITERAL_FALSE;
1250: goto break2;
1251: }
1252: break;
1.48 paf 1253: case ' ': case '\t': case '\n':
1.63 paf 1254: if(end!=begin) { // there were a string after previous operator?
1255: result=0; // return that string
1256: goto break2;
1.48 paf 1257: }
1.63 paf 1258: // that's a leading|traling space or after-operator-space
1259: // ignoring it
1260: // reset piece 'begin' position & line
1.206 paf 1261: begin=pc.source; // after whitespace char
1262: begin_pos=pc.pos;
1.48 paf 1263: continue;
1.1 paf 1264: }
1265: break;
1.194 paf 1266: case LS_EXPRESSION_COMMENT:
1267: if(c=='(')
1268: lexical_brackets_nestage++;
1269:
1.206 paf 1270: switch(*pc.source) {
1.194 paf 1271: case '\n': case ')':
1.206 paf 1272: if(*pc.source==')')
1.194 paf 1273: if(--lexical_brackets_nestage!=0)
1274: continue;
1275:
1276: // skip comment
1.206 paf 1277: begin=pc.source;
1278: begin_pos=pc.pos;
1.194 paf 1279:
1.206 paf 1280: pop_LS(pc);
1.194 paf 1281: continue;
1282: }
1283: break;
1.1 paf 1284:
1.10 paf 1285: // VARIABLE GET/PUT/WITH
1.166 parser 1286: case LS_VAR_NAME_SIMPLE_WITH_COLON:
1287: case LS_VAR_NAME_SIMPLE_WITHOUT_COLON:
1288: case LS_EXPRESSION_VAR_NAME_WITH_COLON:
1289: case LS_EXPRESSION_VAR_NAME_WITHOUT_COLON:
1290: if(
1.206 paf 1291: pc.ls==LS_EXPRESSION_VAR_NAME_WITH_COLON ||
1292: pc.ls==LS_EXPRESSION_VAR_NAME_WITHOUT_COLON) {
1.181 paf 1293: // name in expr ends also before
1.48 paf 1294: switch(c) {
1.181 paf 1295: // expression minus
1.92 paf 1296: case '-':
1.181 paf 1297: // expression integer division
1298: case '\\':
1.206 paf 1299: pop_LS(pc);
1300: pc.ungetc();
1.48 paf 1301: result=EON;
1302: goto break2;
1303: }
1304: }
1.166 parser 1305: if(
1.206 paf 1306: pc.ls==LS_VAR_NAME_SIMPLE_WITHOUT_COLON ||
1307: pc.ls==LS_EXPRESSION_VAR_NAME_WITHOUT_COLON) {
1.142 parser 1308: // name already has ':', stop before next
1309: switch(c) {
1310: case ':':
1.206 paf 1311: pop_LS(pc);
1312: pc.ungetc();
1.142 parser 1313: result=EON;
1314: goto break2;
1315: }
1316: }
1.48 paf 1317: switch(c) {
1318: case 0:
1319: case ' ': case '\t': case '\n':
1320: case ';':
1.126 paf 1321: case ']': case '}': case ')':
1322: case '"': case '\'':
1.139 parser 1323: case '<': case '>': // these stand for HTML brackets AND expression binary ops
1.92 paf 1324: case '+': case '*': case '/': case '%':
1325: case '&': case '|':
1326: case '=': case '!':
1.99 paf 1327: // common delimiters
1.190 paf 1328: case ',': case '?': case '#':
1.220 paf 1329: // mysql column separators
1330: case '`':
1.139 parser 1331: // before call
1332: case '^':
1.206 paf 1333: pop_LS(pc);
1334: pc.ungetc();
1.13 paf 1335: result=EON;
1.1 paf 1336: goto break2;
1.48 paf 1337: case '[':
1.162 parser 1338: // $name.<[>code]
1.206 paf 1339: if(pc.pos.col>1/*not first column*/ && (
1.163 parser 1340: end[-1]=='$'/*was start of get*/ ||
1341: end[-1]==':'/*was class name delim */ ||
1342: end[-1]=='.'/*was name delim */
1.162 parser 1343: )) {
1.206 paf 1344: push_LS(pc, LS_NAME_SQUARE_PART);
1.162 parser 1345: lexical_brackets_nestage=1;
1346: RC;
1347: }
1.206 paf 1348: pc.ls=LS_VAR_SQUARE;
1.1 paf 1349: lexical_brackets_nestage=1;
1.48 paf 1350: RC;
1351: case '{':
1352: if(begin==end) { // ${name}, no need of EON, switching LS
1.206 paf 1353: pc.ls=LS_VAR_NAME_CURLY;
1.48 paf 1354: } else {
1.206 paf 1355: pc.ls=LS_VAR_CURLY;
1.48 paf 1356: lexical_brackets_nestage=1;
1357: }
1.69 paf 1358:
1.48 paf 1359: RC;
1360: case '(':
1.206 paf 1361: pc.ls=LS_VAR_ROUND;
1.1 paf 1362: lexical_brackets_nestage=1;
1.48 paf 1363: RC;
1364: case '.': // name part delim
1365: case '$': // name part subvar
1.160 parser 1366: case ':': // class<:>name
1.166 parser 1367: // go to _WITHOUT_COLON state variant...
1.206 paf 1368: if(pc.ls==LS_VAR_NAME_SIMPLE_WITH_COLON)
1369: pc.ls=LS_VAR_NAME_SIMPLE_WITHOUT_COLON;
1370: else if(pc.ls==LS_EXPRESSION_VAR_NAME_WITH_COLON)
1371: pc.ls=LS_EXPRESSION_VAR_NAME_WITHOUT_COLON;
1.166 parser 1372: // ...stop before next ':'
1.48 paf 1373: RC;
1.1 paf 1374: }
1375: break;
1.48 paf 1376:
1.1 paf 1377: case LS_VAR_NAME_CURLY:
1.48 paf 1378: switch(c) {
1.162 parser 1379: case '[':
1.166 parser 1380: // ${name.<[>code]}
1.206 paf 1381: push_LS(pc, LS_NAME_SQUARE_PART);
1.160 parser 1382: lexical_brackets_nestage=1;
1383: RC;
1.48 paf 1384: case '}': // ${name} finished, restoring LS
1.206 paf 1385: pop_LS(pc);
1.48 paf 1386: RC;
1387: case '.': // name part delim
1388: case '$': // name part subvar
1389: case ':': // ':name' or 'class:name'
1390: RC;
1.1 paf 1391: }
1392: break;
1.48 paf 1393:
1394: case LS_VAR_SQUARE:
1395: switch(c) {
1396: case '$':
1.206 paf 1397: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1398: RC;
1399: case '^':
1.206 paf 1400: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1401: RC;
1402: case ']':
1.1 paf 1403: if(--lexical_brackets_nestage==0) {
1.206 paf 1404: pop_LS(pc);
1.48 paf 1405: RC;
1.1 paf 1406: }
1.48 paf 1407: break;
1408: case ';': // operator_or_fmt;value delim
1409: RC;
1410: case '[':
1411: lexical_brackets_nestage++;
1412: break;
1.1 paf 1413: }
1414: break;
1.48 paf 1415:
1.1 paf 1416: case LS_VAR_CURLY:
1.48 paf 1417: switch(c) {
1418: case '$':
1.206 paf 1419: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1420: RC;
1421: case '^':
1.206 paf 1422: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1423: RC;
1424: case '}':
1.1 paf 1425: if(--lexical_brackets_nestage==0) {
1.206 paf 1426: pop_LS(pc);
1.48 paf 1427: RC;
1.1 paf 1428: }
1.48 paf 1429: break;
1430: case '{':
1.1 paf 1431: lexical_brackets_nestage++;
1.48 paf 1432: break;
1433: }
1.1 paf 1434: break;
1435:
1.10 paf 1436: // METHOD CALL
1.1 paf 1437: case LS_METHOD_NAME:
1.48 paf 1438: switch(c) {
1439: case '[':
1.166 parser 1440: // ^name.<[>code].xxx
1.206 paf 1441: if(pc.pos.col>1/*not first column*/ && (
1.163 parser 1442: end[-1]=='^'/*was start of call*/ || // never, ^[ is literal...
1443: end[-1]==':'/*was class name delim */ ||
1444: end[-1]=='.'/*was name delim */
1.162 parser 1445: )) {
1.206 paf 1446: push_LS(pc, LS_NAME_SQUARE_PART);
1.162 parser 1447: lexical_brackets_nestage=1;
1448: RC;
1449: }
1.206 paf 1450: pc.ls=LS_METHOD_SQUARE;
1.1 paf 1451: lexical_brackets_nestage=1;
1.48 paf 1452: RC;
1453: case '{':
1.206 paf 1454: pc.ls=LS_METHOD_CURLY;
1.1 paf 1455: lexical_brackets_nestage=1;
1.48 paf 1456: RC;
1.69 paf 1457: case '(':
1.206 paf 1458: pc.ls=LS_METHOD_ROUND;
1.69 paf 1459: lexical_brackets_nestage=1;
1460: RC;
1.48 paf 1461: case '.': // name part delim
1462: case '$': // name part subvar
1463: case ':': // ':name' or 'class:name'
1.170 parser 1464: case '^': // ^abc^xxx wrong. bailing out
1465: case ']': case '}': case ')': // ^abc]}) wrong. bailing out
1.207 paf 1466: case ' ': // ^if ( wrong. bailing out
1.48 paf 1467: RC;
1.1 paf 1468: }
1469: break;
1.48 paf 1470:
1471: case LS_METHOD_SQUARE:
1472: switch(c) {
1473: case '$':
1.206 paf 1474: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1475: RC;
1476: case '^':
1.206 paf 1477: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1478: RC;
1479: case ';': // param delim
1480: RC;
1481: case ']':
1.1 paf 1482: if(--lexical_brackets_nestage==0) {
1.206 paf 1483: pc.ls=LS_METHOD_AFTER;
1.48 paf 1484: RC;
1.1 paf 1485: }
1.48 paf 1486: break;
1487: case '[':
1.1 paf 1488: lexical_brackets_nestage++;
1.48 paf 1489: break;
1490: }
1.1 paf 1491: break;
1.48 paf 1492:
1.1 paf 1493: case LS_METHOD_CURLY:
1.48 paf 1494: switch(c) {
1495: case '$':
1.206 paf 1496: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1497: RC;
1498: case '^':
1.206 paf 1499: push_LS(pc, LS_METHOD_NAME);
1.94 paf 1500: RC;
1501: case ';': // param delim
1.48 paf 1502: RC;
1503: case '}':
1.1 paf 1504: if(--lexical_brackets_nestage==0) {
1.206 paf 1505: pc.ls=LS_METHOD_AFTER;
1.48 paf 1506: RC;
1.1 paf 1507: }
1.48 paf 1508: break;
1509: case '{':
1.1 paf 1510: lexical_brackets_nestage++;
1.48 paf 1511: break;
1512: }
1.209 paf 1513: if(pc.explicit_result && c)
1514: switch(c) {
1515: case '\n': case ' ': case '\t':
1516: begin=pc.source;
1517: begin_pos=pc.pos;
1518: continue; // skip it
1519: default:
1520: result=BAD_NONWHITESPACE_CHARACTER_IN_EXPLICIT_RESULT_MODE;
1521: goto break2;
1522: }
1.1 paf 1523: break;
1.48 paf 1524:
1.1 paf 1525: case LS_METHOD_AFTER:
1.69 paf 1526: if(c=='[') {/* ][ }[ )[ */
1.206 paf 1527: pc.ls=LS_METHOD_SQUARE;
1.1 paf 1528: lexical_brackets_nestage=1;
1.48 paf 1529: RC;
1.1 paf 1530: }
1.69 paf 1531: if(c=='{') {/* ]{ }{ ){ */
1.206 paf 1532: pc.ls=LS_METHOD_CURLY;
1.69 paf 1533: lexical_brackets_nestage=1;
1534: RC;
1535: }
1536: if(c=='(') {/* ]( }( )( */
1.206 paf 1537: pc.ls=LS_METHOD_ROUND;
1.1 paf 1538: lexical_brackets_nestage=1;
1.48 paf 1539: RC;
1.1 paf 1540: }
1.206 paf 1541: pop_LS(pc);
1542: pc.ungetc();
1.13 paf 1543: result=EON;
1.1 paf 1544: goto break2;
1545: }
1.9 paf 1546: if(c==0) {
1.1 paf 1547: result=-1;
1548: break;
1549: }
1550: }
1551:
1552: break2:
1.59 paf 1553: if(end!=begin) { // there is last piece?
1554: if((c=='@' || c==0) && end[-1]=='\n') { // we are before LS_DEF_NAME or EOF?
1555: // strip last \n
1.10 paf 1556: end--;
1.137 parser 1557: if(end!=begin && end[-1]=='\n') // allow one empty line before LS_DEF_NAME
1558: end--;
1.59 paf 1559: }
1.206 paf 1560: if(end!=begin && pc.ls!=LS_USER_COMMENT) { // last piece still alive and not comment?
1561: if(!pc.string_start)
1562: pc.string_start=begin_pos;
1.59 paf 1563: // append it
1.206 paf 1564: pc.string.append_strdup_know_length(begin, end-begin);
1.30 paf 1565: }
1.59 paf 1566: }
1.206 paf 1567: if(!pc.string.is_empty()) { // something accumulated?
1568: // create STRING value: array of OP_VALUE+origin+vstring
1569: *lvalp=VL(
1570: new VString(*new String(pc.string, String::L_CLEAN)),
1571: pc.file_no, pc.string_start.line, pc.string_start.col);
1.10 paf 1572: // new pieces storage
1.206 paf 1573: pc.string.clear();
1574: pc.string_start.clear();
1.58 paf 1575: // make current result be pending for next call, return STRING for now
1.206 paf 1576: pc.pending_state=result; result=STRING;
1.58 paf 1577: }
1.67 paf 1578: if(skip_analized) {
1.206 paf 1579: pc.source+=skip_analized; pc.pos.col+=skip_analized;
1.1 paf 1580: }
1.58 paf 1581: return result;
1.1 paf 1582: }
1583:
1.206 paf 1584: static int real_yyerror(Parse_control *pc, char *s) { // Called by yyparse on error
1.114 paf 1585: strncpy(PC.error, s, MAX_STRING);
1.1 paf 1586: return 1;
1.110 paf 1587: }
1.1 paf 1588:
1.110 paf 1589: static void yyprint(FILE *file, int type, YYSTYPE value) {
1590: if(type==STRING)
1.206 paf 1591: fprintf(file, " \"%s\"", LA2S(*value)->cstr());
1.110 paf 1592: }
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