Annotation of parser3/src/main/compile.y, revision 1.279
1.168 parser 1: %{
1.105 paf 2: /** @file
1.106 paf 3: Parser: compiler(lexical parser and grammar).
4:
1.274 moko 5: Copyright (c) 2001-2015 Art. Lebedev Studio (http://www.artlebedev.com)
1.168 parser 6: Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf)
1.217 paf 7:
1.262 moko 8:
1.88 paf 9: */
10:
1.279 ! moko 11: volatile const char * IDENT_COMPILE_Y = "$Id: compile.y,v 1.278 2016/05/24 14:28:24 moko Exp $";
1.262 moko 12:
1.106 paf 13: /**
14: @todo parser4:
15: - cache compiled code from request to request. to do that...
16: -#: make method definitions, @CLASS, @BASE, @USE instructions,
1.88 paf 17: which would be executed afterwards, and actions
18: now performed at compile time would be delayed to run time.
1.106 paf 19: -#: make cache expiration on time and on disk-change of class source
20: -#: in apache use subpools for compiled class storage
21: -#: in iis make up specialized Pool object for that
1.24 paf 22: */
23:
1.206 paf 24: #define YYSTYPE ArrayOperation*
1.9 paf 25: #define YYDEBUG 1
1.271 moko 26: #define YYERROR_VERBOSE 1
27: #define yyerror(pc, msg) real_yyerror(pc, msg)
1.9 paf 28: #define YYPRINT(file, type, value) yyprint(file, type, value)
1.269 moko 29: #define YYMALLOC pa_malloc
30: #define YYFREE pa_free
1.1 paf 31:
1.206 paf 32: // includes
33:
1.1 paf 34: #include "compile_tools.h"
1.8 paf 35: #include "pa_value.h"
1.12 paf 36: #include "pa_request.h"
1.39 paf 37: #include "pa_vobject.h"
1.52 paf 38: #include "pa_vdouble.h"
1.98 paf 39: #include "pa_globals.h"
1.200 paf 40: #include "pa_vmethod_frame.h"
1.39 paf 41:
1.206 paf 42: // defines
43:
1.97 paf 44: #define USE_CONTROL_METHOD_NAME "USE"
1.226 misha 45: #define OPTIONS_CONTROL_METHOD_NAME "OPTIONS"
1.1 paf 46:
1.206 paf 47: // forwards
48:
1.264 moko 49: static int real_yyerror(Parse_control* pc, const char* s);
1.206 paf 50: static void yyprint(FILE* file, int type, YYSTYPE value);
51: static int yylex(YYSTYPE* lvalp, void* pc);
1.1 paf 52:
1.216 paf 53: static const VBool vfalse(false);
54: static const VBool vtrue(true);
1.261 moko 55: static const VString vempty;
1.216 paf 56:
1.8 paf 57: // local convinient inplace typecast & var
1.205 paf 58: #undef PC
1.271 moko 59: #define PC (*pc)
1.206 paf 60: #undef POOL
1.114 paf 61: #define POOL (*PC.pool)
1.107 paf 62: #ifndef DOXYGEN
1.265 moko 63:
64: #define CLASS_ADD if(PC.class_add()){ \
1.275 moko 65: strncpy(PC.error, PC.cclass->type(), MAX_STRING/2); \
1.265 moko 66: strcat(PC.error, " - class is already defined"); \
67: YYERROR; \
68: }
69:
1.1 paf 70: %}
71:
1.271 moko 72: %pure-parser
73: %lex-param {Parse_control* pc}
74: %parse-param {Parse_control* pc}
1.1 paf 75:
1.13 paf 76: %token EON
1.4 paf 77: %token STRING
1.1 paf 78: %token BOGUS
1.55 paf 79:
1.58 paf 80: %token BAD_STRING_COMPARISON_OPERATOR
1.114 paf 81: %token BAD_HEX_LITERAL
1.171 parser 82: %token BAD_METHOD_DECL_START
1.193 paf 83: %token BAD_METHOD_PARAMETER_NAME_CHARACTER
1.58 paf 84:
1.59 paf 85: %token LAND "&&"
1.58 paf 86: %token LOR "||"
1.193 paf 87: %token LXOR "!||"
88: %token NXOR "!|"
1.58 paf 89:
90: %token NLE "<="
91: %token NGE ">="
92: %token NEQ "=="
93: %token NNE "!="
1.195 paf 94: %token NSL "<<"
95: %token NSR ">>"
1.58 paf 96:
97: %token SLT "lt"
98: %token SGT "gt"
99: %token SLE "le"
100: %token SGE "ge"
101: %token SEQ "eq"
102: %token SNE "ne"
103:
1.67 paf 104: %token DEF "def"
105: %token IN "in"
106: %token FEXISTS "-f"
1.127 paf 107: %token DEXISTS "-d"
1.95 paf 108: %token IS "is"
1.67 paf 109:
1.216 paf 110: %token LITERAL_TRUE "true"
111: %token LITERAL_FALSE "false"
112:
1.57 paf 113: /* logical */
1.193 paf 114: %left "!||"
1.57 paf 115: %left "||"
116: %left "&&"
1.131 paf 117: %left '<' '>' "<=" ">=" "lt" "gt" "le" "ge"
118: %left "==" "!=" "eq" "ne"
119: %left "is" "def" "in" "-f" "-d"
1.57 paf 120:
121: /* bitwise */
1.193 paf 122: %left "!|"
1.131 paf 123: %left '|'
124: %left '&'
1.202 paf 125: %left "<<" ">>"
1.57 paf 126:
1.56 paf 127: /* numerical */
1.202 paf 128: %left '+' '-'
129: %left '*' '/' '\\' '%'
130: %left NUNARY /* unary - + */
131:
132: /* out-of-group */
133: %left '~' /* bitwise */
134: %left '!' /* logical */
1.1 paf 135:
136: %%
1.195 paf 137: all:
1.10 paf 138: one_big_piece {
1.251 misha 139: Method* method=new Method(Method::CT_ANY,
1.81 paf 140: 0, 0, /*min, max numbered_params_count*/
1.75 paf 141: 0/*param_names*/, 0/*local_names*/,
142: $1/*parser_code*/, 0/*native_code*/);
1.251 misha 143: PC.cclass->set_method(PC.alias_method(main_method_name), method);
1.10 paf 144: }
145: | methods;
146:
147: methods: method | methods method;
148: one_big_piece: maybe_codes;
149:
1.34 paf 150: method: control_method | code_method;
151:
152: control_method: '@' STRING '\n'
1.132 paf 153: maybe_control_strings {
1.260 misha 154: const String& command=LA2S(*$2)->trim(String::TRIM_END);
1.34 paf 155: YYSTYPE strings_code=$4;
1.206 paf 156: if(strings_code->count()<1*OPERATIONS_PER_OPVALUE) {
1.114 paf 157: strcpy(PC.error, "@");
158: strcat(PC.error, command.cstr());
159: strcat(PC.error, " is empty");
1.37 paf 160: YYERROR;
161: }
1.74 paf 162: if(command==CLASS_NAME) {
1.206 paf 163: if(strings_code->count()==1*OPERATIONS_PER_OPVALUE) {
1.265 moko 164: CLASS_ADD;
1.73 paf 165: // new class' name
1.260 misha 166: const String& name=LA2S(*strings_code)->trim(String::TRIM_END);
1.73 paf 167: // creating the class
1.206 paf 168: VStateless_class* cclass=new VClass;
1.226 misha 169: PC.cclass_new=cclass;
1.275 moko 170: PC.cclass_new->set_type(name.cstr());
1.266 misha 171: PC.append=false;
1.73 paf 172: } else {
1.268 moko 173: strcpy(PC.error, "@" CLASS_NAME " must contain only one line with class name (contains more then one)");
1.34 paf 174: YYERROR;
175: }
1.130 paf 176: } else if(command==USE_CONTROL_METHOD_NAME) {
1.265 moko 177: CLASS_ADD;
1.273 moko 178: for(size_t i=0; i<strings_code->count(); i+=OPERATIONS_PER_OPVALUE){
179: PC.request.use_file(PC.request.main_class, LA2S(*strings_code, i)->trim(String::TRIM_END),
180: PC.request.get_used_filename(PC.file_no), strings_code->get(i+1).origin);
181: }
1.130 paf 182: } else if(command==BASE_NAME) {
1.226 misha 183: if(PC.append){
184: strcpy(PC.error, "can't set base while appending methods to class '");
1.275 moko 185: strncat(PC.error, PC.cclass->type(), MAX_STRING/2);
1.226 misha 186: strcat(PC.error, "'");
187: YYERROR;
188: }
1.265 moko 189: CLASS_ADD;
1.188 paf 190: if(PC.cclass->base_class()) { // already changed from default?
1.130 paf 191: strcpy(PC.error, "class already have a base '");
1.275 moko 192: strncat(PC.error, PC.cclass->base_class()->type(), MAX_STRING/2);
1.130 paf 193: strcat(PC.error, "'");
194: YYERROR;
195: }
1.206 paf 196: if(strings_code->count()==1*OPERATIONS_PER_OPVALUE) {
1.260 misha 197: const String& base_name=LA2S(*strings_code)->trim(String::TRIM_END);
1.252 misha 198: if(Value* base_class_value=PC.request.get_class(base_name)) {
1.206 paf 199: // @CLASS == @BASE sanity check
200: if(VStateless_class *base_class=base_class_value->get_class()) {
201: if(PC.cclass==base_class) {
1.268 moko 202: strcpy(PC.error, "@" CLASS_NAME " equals @" BASE_NAME);
1.206 paf 203: YYERROR;
204: }
205: PC.cclass->get_class()->set_base(base_class);
206: } else { // they asked to derive from a class without methods ['env' & co]
207: strcpy(PC.error, base_name.cstr());
1.268 moko 208: strcat(PC.error, ": you can not derive from this class in @" BASE_NAME);
1.206 paf 209: YYERROR;
210: }
211: } else {
1.130 paf 212: strcpy(PC.error, base_name.cstr());
1.268 moko 213: strcat(PC.error, ": undefined class in @" BASE_NAME);
1.73 paf 214: YYERROR;
215: }
1.34 paf 216: } else {
1.268 moko 217: strcpy(PC.error, "@" BASE_NAME " must contain sole name");
1.34 paf 218: YYERROR;
219: }
1.223 misha 220: } else if(command==OPTIONS_CONTROL_METHOD_NAME) {
221: for(size_t i=0; i<strings_code->count(); i+=OPERATIONS_PER_OPVALUE) {
1.260 misha 222: const String& option=LA2S(*strings_code, i)->trim(String::TRIM_END);
1.279 ! moko 223: if(option==Symbols::LOCALS_SYMBOL){
1.226 misha 224: PC.set_all_vars_local();
1.279 ! moko 225: } else if(option==Symbols::PARTIAL_SYMBOL){
1.230 misha 226: if(PC.cclass_new){
227: if(VStateless_class* existed=PC.get_existed_class(PC.cclass_new)){
228: if(!PC.reuse_existed_class(existed)){
229: strcpy(PC.error, "can't append methods to '");
1.275 moko 230: strncat(PC.error, PC.cclass_new->type(), MAX_STRING/2);
1.230 misha 231: strcat(PC.error, "' - the class wasn't marked as partial");
232: YYERROR;
233: }
1.226 misha 234: } else {
1.256 misha 235: // marks the new class as partial. we will be able to add methods here later.
1.230 misha 236: PC.cclass_new->set_partial();
1.226 misha 237: }
1.230 misha 238: } else {
1.279 ! moko 239: strcpy(PC.error, "'partial' option should be used straight after @" CLASS_NAME);
1.226 misha 240: YYERROR;
241: }
1.279 ! moko 242: } else if(option==Symbols::STATIC_SYMBOL){
1.256 misha 243: PC.set_methods_call_type(Method::CT_STATIC);
1.279 ! moko 244: } else if(option==Symbols::DYNAMIC_SYMBOL){
1.256 misha 245: PC.set_methods_call_type(Method::CT_DYNAMIC);
1.223 misha 246: } else {
1.226 misha 247: strcpy(PC.error, "'");
248: strncat(PC.error, option.cstr(), MAX_STRING/2);
1.279 ! moko 249: strcat(PC.error, "' invalid option. valid options are 'partial', 'locals', 'static' and 'dynamic'");
1.223 misha 250: YYERROR;
251: }
252: }
1.130 paf 253: } else {
254: strcpy(PC.error, "'");
255: strncat(PC.error, command.cstr(), MAX_STRING/2);
256: strcat(PC.error, "' invalid special name. valid names are "
1.268 moko 257: "'" CLASS_NAME "', '" USE_CONTROL_METHOD_NAME "', '" BASE_NAME "' and '" OPTIONS_CONTROL_METHOD_NAME "'.");
1.130 paf 258: YYERROR;
1.34 paf 259: }
260: };
1.132 paf 261: maybe_control_strings: empty | control_strings;
1.259 misha 262: control_strings: control_string | control_strings control_string { $$=$1; P(*$$, *$2); };
1.37 paf 263: control_string: maybe_string '\n';
264: maybe_string: empty | STRING;
1.34 paf 265:
1.222 misha 266: code_method: '@' STRING bracketed_maybe_strings maybe_bracketed_strings maybe_comment '\n' {
1.265 moko 267: CLASS_ADD;
1.208 paf 268: PC.explicit_result=false;
1.10 paf 269:
270: YYSTYPE params_names_code=$3;
1.206 paf 271: ArrayString* params_names=0;
272: if(int size=params_names_code->count()) {
273: params_names=new ArrayString;
274: for(int i=0; i<size; i+=OPERATIONS_PER_OPVALUE)
275: *params_names+=LA2S(*params_names_code, i);
1.75 paf 276: }
1.10 paf 277:
278: YYSTYPE locals_names_code=$4;
1.206 paf 279: ArrayString* locals_names=0;
1.223 misha 280: bool all_vars_local=false;
1.206 paf 281: if(int size=locals_names_code->count()) {
282: locals_names=new ArrayString;
1.208 paf 283: for(int i=0; i<size; i+=OPERATIONS_PER_OPVALUE) {
284: const String* local_name=LA2S(*locals_names_code, i);
1.279 ! moko 285: if(SYMBOLS_EQ(*local_name,RESULT_SYMBOL))
1.208 paf 286: PC.explicit_result=true;
1.279 ! moko 287: else if(SYMBOLS_EQ(*local_name,LOCALS_SYMBOL))
1.223 misha 288: all_vars_local=true;
1.208 paf 289: else
290: *locals_names+=local_name;
291: }
1.75 paf 292: }
1.231 misha 293: if(!all_vars_local && PC.cclass && PC.cclass->is_vars_local())
1.223 misha 294: all_vars_local=true;
1.10 paf 295:
1.208 paf 296: Method* method=new Method(
1.206 paf 297: //name,
1.257 misha 298: GetMethodCallType(PC, *$2),
1.81 paf 299: 0, 0/*min,max numbered_params_count*/,
1.76 paf 300: params_names, locals_names,
1.223 misha 301: 0/*to be filled later in next {} */, 0, all_vars_local);
1.221 misha 302:
1.208 paf 303: *reinterpret_cast<Method**>(&$$)=method;
1.222 misha 304: } maybe_codes {
1.251 misha 305: Method* method=reinterpret_cast<Method*>($7);
1.231 misha 306: // fill in the code
1.251 misha 307: method->parser_code=$8;
1.231 misha 308:
309: // register in class
310: const String& name=*LA2S(*$2);
1.251 misha 311: PC.cclass->set_method(PC.alias_method(name), method);
1.8 paf 312: };
1.10 paf 313:
314: maybe_bracketed_strings: empty | bracketed_maybe_strings;
1.259 misha 315: bracketed_maybe_strings: '[' maybe_strings ']' {$$=$2;};
1.10 paf 316: maybe_strings: empty | strings;
1.259 misha 317: strings: STRING | strings ';' STRING { $$=$1; P(*$$, *$3); };
1.10 paf 318:
319: maybe_comment: empty | STRING;
1.1 paf 320:
321: /* codes */
322:
1.10 paf 323: maybe_codes: empty | codes;
324:
1.259 misha 325: codes: code | codes code { $$=$1; P(*$$, *$2); };
1.81 paf 326: code: write_string | action;
1.209 paf 327: action: get | put | call;
1.1 paf 328:
329: /* get */
330:
1.64 paf 331: get: get_value {
1.238 misha 332: $$=N();
333: YYSTYPE code=$1;
1.247 misha 334: size_t count=code->count();
1.245 misha 335:
1.235 misha 336: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
1.247 misha 337: if(
338: count!=3
1.267 misha 339: || !change_first(*code, OP::OP_VALUE__GET_ELEMENT, /*=>*/OP::OP_VALUE__GET_ELEMENT__WRITE)
1.247 misha 340: )
1.238 misha 341: #endif
1.247 misha 342:
1.245 misha 343: #ifdef OPTIMIZE_BYTECODE_GET_SELF_ELEMENT
1.247 misha 344: if(
345: count!=3
1.267 misha 346: || !change_first(*code, OP::OP_WITH_SELF__VALUE__GET_ELEMENT, /*=>*/OP::OP_WITH_SELF__VALUE__GET_ELEMENT__WRITE)
1.247 misha 347: )
1.245 misha 348: #endif
349:
1.239 misha 350: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_ELEMENT
1.247 misha 351: if(
352: count!=5
1.267 misha 353: || !change_first(*code, OP::OP_GET_OBJECT_ELEMENT, /*=>*/OP::OP_GET_OBJECT_ELEMENT__WRITE)
1.247 misha 354: )
1.239 misha 355: #endif
356:
357: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_VAR_ELEMENT
1.247 misha 358: if(
359: count!=5
1.267 misha 360: || !change_first(*code, OP::OP_GET_OBJECT_VAR_ELEMENT, /*=>*/OP::OP_GET_OBJECT_VAR_ELEMENT__WRITE)
1.247 misha 361: )
1.238 misha 362: #endif
1.267 misha 363:
364: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT__SPECIAL
365: if(
366: !change(*code, count-1/* last */, OP::OP_GET_ELEMENT__SPECIAL, /*=>*/OP::OP_GET_ELEMENT__SPECIAL__WRITE)
367: )
368: #endif
369:
1.247 misha 370: {
1.267 misha 371: change_or_append(*code, count-1 /* last */,
372: OP::OP_GET_ELEMENT, /*=>*/OP::OP_GET_ELEMENT__WRITE,
1.247 misha 373: /*or */OP::OP_WRITE_VALUE
374: ); /* value=pop; wcontext.write(value) */
1.246 misha 375: }
1.247 misha 376:
1.238 misha 377: P(*$$, *code);
1.1 paf 378: };
1.259 misha 379: get_value: '$' get_name_value { $$=$2; };
1.64 paf 380: get_name_value: name_without_curly_rdive EON | name_in_curly_rdive;
1.259 misha 381: name_in_curly_rdive: '{' name_without_curly_rdive '}' { $$=$2; };
1.44 paf 382: name_without_curly_rdive:
383: name_without_curly_rdive_read
384: | name_without_curly_rdive_class;
1.19 paf 385: name_without_curly_rdive_read: name_without_curly_rdive_code {
1.206 paf 386: $$=N();
1.238 misha 387: YYSTYPE diving_code=$1;
1.239 misha 388: size_t count=diving_code->count();
1.247 misha 389:
390: if(maybe_make_self(*$$, *diving_code, count)) {
391: // $self.
392: } else
1.239 misha 393:
394: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_ELEMENT
1.247 misha 395: if(maybe_make_get_object_element(*$$, *diving_code, count)){
1.245 misha 396: // optimization for $object.field + ^object.method[
1.247 misha 397: } else
1.238 misha 398: #endif
1.239 misha 399:
400: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_VAR_ELEMENT
1.247 misha 401: if(maybe_make_get_object_var_element(*$$, *diving_code, count)){
1.245 misha 402: // optimization for $object.$var
1.247 misha 403: } else
1.238 misha 404: #endif
1.239 misha 405:
406: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
1.248 misha 407: if(
408: count>=4
409: && (*diving_code)[0].code==OP::OP_VALUE
410: && (*diving_code)[3].code==OP::OP_GET_ELEMENT
411: ){
412: // optimization
1.239 misha 413: O(*$$,
1.247 misha 414: (PC.in_call_value && count==4)
1.239 misha 415: ? OP::OP_VALUE__GET_ELEMENT_OR_OPERATOR // ^object[ : OP_VALUE+origin+string+OP_GET_ELEMENT => OP_VALUE__GET_ELEMENT_OR_OPERATOR+origin+string
416: : OP::OP_VALUE__GET_ELEMENT // $object : OP_VALUE+origin+string+OP_GET_ELEMENT => OP_VALUE__GET_ELEMENT+origin+string
417: );
418: P(*$$, *diving_code, 1/*offset*/, 2/*limit*/); // copy origin+value
1.247 misha 419: if(count>4)
420: P(*$$, *diving_code, 4); // copy tail
1.239 misha 421: } else {
422: O(*$$, OP::OP_WITH_READ); /* stack: starting context */
423: P(*$$, *diving_code);
424: }
1.233 misha 425: #else
1.247 misha 426: {
1.238 misha 427: O(*$$, OP::OP_WITH_READ); /* stack: starting context */
1.179 paf 428:
1.238 misha 429: // ^if OP_ELEMENT => ^if OP_ELEMENT_OR_OPERATOR
430: // optimized OP_VALUE+origin+string+OP_GET_ELEMENT. => OP_VALUE+origin+string+OP_GET_ELEMENT_OR_OPERATOR.
1.239 misha 431: if(PC.in_call_value && count==4)
432: diving_code->put(count-1, OP::OP_GET_ELEMENT_OR_OPERATOR);
1.206 paf 433: P(*$$, *diving_code);
1.239 misha 434: }
1.233 misha 435: #endif
1.22 paf 436: /* diving code; stack: current context */
1.1 paf 437: };
1.259 misha 438: name_without_curly_rdive_class: class_prefix name_without_curly_rdive_code { $$=$1; P(*$$, *$2); };
439: name_without_curly_rdive_code: name_advance2 | name_path name_advance2 { $$=$1; P(*$$, *$2); };
1.1 paf 440:
441: /* put */
442:
1.81 paf 443: put: '$' name_expr_wdive construct {
1.241 misha 444: $$=N();
1.244 misha 445: #ifdef OPTIMIZE_BYTECODE_CONSTRUCT
446: if(maybe_optimize_construct(*$$, *$2, *$3)){
1.246 misha 447: // $a(expr), $.a(expr), $a[value], $.a[value], $self.a[value], $self.a(expr)
1.241 misha 448: } else
449: #endif
450: {
451: P(*$$, *$2); /* stack: context,name */
452: P(*$$, *$3); /* stack: context,name,constructor_value */
453: }
1.20 paf 454: };
1.44 paf 455: name_expr_wdive:
1.157 parser 456: name_expr_wdive_root
457: | name_expr_wdive_write
1.44 paf 458: | name_expr_wdive_class;
1.157 parser 459: name_expr_wdive_root: name_expr_dive_code {
1.206 paf 460: $$=N();
1.238 misha 461: YYSTYPE diving_code=$1;
1.247 misha 462: size_t count=diving_code->count();
463:
464: if(maybe_make_self(*$$, *diving_code, count)) {
465: // $self.
466: } else
467: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
468: if(
469: count>=4
470: && (*diving_code)[0].code==OP::OP_VALUE
471: && (*diving_code)[3].code==OP::OP_GET_ELEMENT
472: ){
473: O(*$$, OP::OP_WITH_ROOT__VALUE__GET_ELEMENT);
474: P(*$$, *diving_code, 1/*offset*/, 2/*limit*/); // copy origin+value
475: if(count>4)
476: P(*$$, *diving_code, 4); // tail
477: } else
478: #endif
479: {
1.229 misha 480: O(*$$, OP::OP_WITH_ROOT); /* stack: starting context */
1.206 paf 481: P(*$$, *diving_code);
1.23 paf 482: }
483: /* diving code; stack: current context */
1.156 parser 484: };
1.157 parser 485: name_expr_wdive_write: '.' name_expr_dive_code {
1.206 paf 486: $$=N();
1.229 misha 487: O(*$$, OP::OP_WITH_WRITE); /* stack: starting context */
1.206 paf 488: P(*$$, *$2); /* diving code; stack: context,name */
1.20 paf 489: };
1.259 misha 490: name_expr_wdive_class: class_prefix name_expr_dive_code { $$=$1; P(*$$, *$2); };
1.20 paf 491:
1.244 misha 492: construct:
1.163 parser 493: construct_square
494: | construct_round
495: | construct_curly
1.149 parser 496: ;
1.211 paf 497: construct_square: '[' {
498: // allow $result_or_other_variable[ letters here any time ]
499: *reinterpret_cast<bool*>(&$$)=PC.explicit_result; PC.explicit_result=false;
500: } any_constructor_code_value {
1.213 paf 501: PC.explicit_result=*reinterpret_cast<bool*>(&$2);
1.211 paf 502: } ']' {
1.149 parser 503: // stack: context, name
1.211 paf 504: $$=$3; // stack: context, name, value
1.229 misha 505: O(*$$, OP::OP_CONSTRUCT_VALUE); /* value=pop; name=pop; context=pop; construct(context,name,value) */
1.81 paf 506: }
507: ;
1.149 parser 508: construct_round: '(' expr_value ')' {
1.206 paf 509: $$=N();
1.229 misha 510: O(*$$, OP::OP_PREPARE_TO_EXPRESSION);
1.149 parser 511: // stack: context, name
1.206 paf 512: P(*$$, *$2); // stack: context, name, value
1.229 misha 513: O(*$$, OP::OP_CONSTRUCT_EXPR); /* value=pop->as_expr_result; name=pop; context=pop; construct(context,name,value) */
1.81 paf 514: }
1.52 paf 515: ;
1.149 parser 516: construct_curly: '{' maybe_codes '}' {
517: // stack: context, name
1.206 paf 518: $$=N();
1.229 misha 519: OA(*$$, OP::OP_CURLY_CODE__CONSTRUCT, $2); /* code=pop; name=pop; context=pop; construct(context,name,junction(code)) */
1.149 parser 520: };
521:
1.55 paf 522: any_constructor_code_value:
1.261 moko 523: empty_value /* optimized $var[] case */
1.52 paf 524: | STRING /* optimized $var[STRING] case */
1.55 paf 525: | constructor_code_value /* $var[something complex] */
1.1 paf 526: ;
1.55 paf 527: constructor_code_value: constructor_code {
1.206 paf 528: $$=N();
1.229 misha 529: OA(*$$, OP::OP_OBJECT_POOL, $1); /* stack: empty write context */
1.183 paf 530: /* some code that writes to that context */
531: /* context=pop; stack: context.value() */
1.1 paf 532: };
1.55 paf 533: constructor_code: codes__excluding_sole_str_literal;
1.259 misha 534: codes__excluding_sole_str_literal: action | code codes { $$=$1; P(*$$, *$2); };
1.27 paf 535:
1.1 paf 536: /* call */
537:
1.66 paf 538: call: call_value {
1.267 misha 539: size_t count=$1->count();
1.238 misha 540: #ifdef OPTIMIZE_BYTECODE_CUT_REM_OPERATOR
1.267 misha 541: if(count)
1.238 misha 542: #endif
543: {
544: $$=$1; /* stack: value */
1.267 misha 545: if(!change_first(*$$, OP::OP_CONSTRUCT_OBJECT, /*=>*/OP::OP_CONSTRUCT_OBJECT__WRITE))
546: change_or_append(*$$, count-2 /* second last */,
547: OP::OP_CALL, /*=>*/ OP::OP_CALL__WRITE,
1.249 misha 548: /*or */OP::OP_WRITE_VALUE); /* value=pop; wcontext.write(value) */
1.238 misha 549: }
1.66 paf 550: };
1.177 paf 551: call_value: '^' {
1.180 paf 552: PC.in_call_value=true;
1.177 paf 553: }
554: call_name {
1.180 paf 555: PC.in_call_value=false;
1.177 paf 556: }
1.154 parser 557: store_params EON { /* ^field.$method{vasya} */
1.238 misha 558: #ifdef OPTIMIZE_BYTECODE_CUT_REM_OPERATOR
1.242 misha 559: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
1.238 misha 560: const String* operator_name=LA2S(*$3, 0, OP::OP_VALUE__GET_ELEMENT_OR_OPERATOR);
1.242 misha 561: #else
562: const String* operator_name=LA2S(*$3, 1);
563: #endif
1.279 ! moko 564: if(operator_name && SYMBOLS_EQ(*operator_name,REM_SYMBOL)){
1.238 misha 565: $$=N();
566: } else
567: #endif
568: {
569: YYSTYPE params_code=$5;
570: if(params_code->count()==3) { // probably [] case. [OP::OP_VALUE+origin+Void]
571: if(Value* value=LA2V(*params_code)) // it is OP_VALUE+origin+value?
1.261 moko 572: if(const String * string=value->get_string())
573: if(string->is_empty()) // value is empty string?
574: params_code=0; // ^zzz[] case. don't append lone empty param.
1.238 misha 575: }
576: /* stack: context, method_junction */
1.249 misha 577:
578: YYSTYPE var_code=$3;
579: if(
580: var_code->count()==8
581: && (*var_code)[0].code==OP::OP_VALUE__GET_CLASS
582: && (*var_code)[3].code==OP::OP_PREPARE_TO_CONSTRUCT_OBJECT
583: && (*var_code)[4].code==OP::OP_VALUE
1.272 moko 584: #ifdef FEATURE_GET_ELEMENT4CALL
585: && (*var_code)[7].code==OP::OP_GET_ELEMENT4CALL
586: #else
1.249 misha 587: && (*var_code)[7].code==OP::OP_GET_ELEMENT
1.272 moko 588: #endif
1.249 misha 589: ){
1.267 misha 590: $$=N();
1.249 misha 591: O(*$$, OP::OP_CONSTRUCT_OBJECT);
592: P(*$$, *var_code, 1/*offset*/, 2/*limit*/); // class name
593: P(*$$, *var_code, 5/*offset*/, 2/*limit*/); // constructor name
594: OA(*$$, params_code);
595: } else
596: {
597: $$=var_code; /* with_xxx,diving code; stack: context,method_junction */
598: OA(*$$, OP::OP_CALL, params_code); // method_frame=make frame(pop junction); ncontext=pop; call(ncontext,method_frame) stack: value
599: }
1.238 misha 600: }
1.1 paf 601: };
602:
1.272 moko 603: call_name: name_without_curly_rdive {
604: #ifdef FEATURE_GET_ELEMENT4CALL
605: size_t count=$1->count();
606: if(count){
607: $$=$1;
608: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_ELEMENT
609: !(count==5 && change_first(*$$, OP::OP_GET_OBJECT_ELEMENT, OP::OP_GET_OBJECT_ELEMENT4CALL)) &&
610: #endif
611: #ifdef OPTIMIZE_BYTECODE_GET_OBJECT_VAR_ELEMENT
612: !(count==5 && change_first(*$$, OP::OP_GET_OBJECT_VAR_ELEMENT, OP::OP_GET_OBJECT_VAR_ELEMENT4CALL)) &&
613: #endif
614: !change(*$$, count-1, OP::OP_GET_ELEMENT, OP::OP_GET_ELEMENT4CALL);
615: }
616: #endif
617: };
1.38 paf 618:
1.259 misha 619: store_params: store_param | store_params store_param { $$=$1; P(*$$, *$2); };
1.69 paf 620: store_param:
621: store_square_param
622: | store_round_param
623: | store_curly_param
1.31 paf 624: ;
1.210 paf 625: store_square_param: '[' {
1.211 paf 626: // allow ^call[ letters here any time ]
1.210 paf 627: *reinterpret_cast<bool*>(&$$)=PC.explicit_result; PC.explicit_result=false;
628: } store_code_param_parts {
1.213 paf 629: PC.explicit_result=*reinterpret_cast<bool*>(&$2);
1.259 misha 630: } ']' {$$=$3;};
631: store_round_param: '(' store_expr_param_parts ')' {$$=$2;};
632: store_curly_param: '{' store_curly_param_parts '}' {$$=$2;};
1.69 paf 633: store_code_param_parts:
634: store_code_param_part
1.259 misha 635: | store_code_param_parts ';' store_code_param_part { $$=$1; P(*$$, *$3); }
1.69 paf 636: ;
637: store_expr_param_parts:
638: store_expr_param_part
1.259 misha 639: | store_expr_param_parts ';' store_expr_param_part { $$=$1; P(*$$, *$3); }
1.69 paf 640: ;
1.94 paf 641: store_curly_param_parts:
642: store_curly_param_part
1.259 misha 643: | store_curly_param_parts ';' store_curly_param_part { $$=$1; P(*$$, *$3); }
1.94 paf 644: ;
1.120 paf 645: store_code_param_part: code_param_value {
1.32 paf 646: $$=$1;
1.120 paf 647: };
1.214 paf 648: store_expr_param_part: expr_value {
649: YYSTYPE expr_code=$1;
1.215 paf 650: if(expr_code->count()==3
1.234 misha 651: && (*expr_code)[0].code==OP::OP_VALUE) { // optimizing (double/bool/incidently 'string' too) case. [OP::OP_VALUE+origin+Double]. no evaluating
1.214 paf 652: $$=expr_code;
653: } else {
1.238 misha 654: YYSTYPE code=N();
1.229 misha 655: O(*code, OP::OP_PREPARE_TO_EXPRESSION);
1.214 paf 656: P(*code, *expr_code);
1.229 misha 657: O(*code, OP::OP_WRITE_EXPR_RESULT);
1.214 paf 658: $$=N();
1.229 misha 659: OA(*$$, OP::OP_EXPR_CODE__STORE_PARAM, code);
1.214 paf 660: }
1.69 paf 661: };
1.94 paf 662: store_curly_param_part: maybe_codes {
1.206 paf 663: $$=N();
1.229 misha 664: OA(*$$, OP::OP_CURLY_CODE__STORE_PARAM, $1);
1.94 paf 665: };
1.120 paf 666: code_param_value:
1.261 moko 667: empty_value /* optimized [;...] case */
1.120 paf 668: | STRING /* optimized [STRING] case */
669: | constructor_code_value /* [something complex] */
670: ;
1.1 paf 671:
672: /* name */
673:
1.259 misha 674: name_expr_dive_code: name_expr_value | name_path name_expr_value { $$=$1; P(*$$, *$2); };
1.1 paf 675:
1.259 misha 676: name_path: name_step | name_path name_step { $$=$1; P(*$$, *$2); };
1.1 paf 677: name_step: name_advance1 '.';
678: name_advance1: name_expr_value {
1.177 paf 679: // we know that name_advance1 not called from ^xxx context
680: // so we'll not check for operator call possibility as we do in name_advance2
681:
1.1 paf 682: /* stack: context */
683: $$=$1; /* stack: context,name */
1.267 misha 684: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT__SPECIAL
685: O(*$$, is_special_element(*$$) ? OP::OP_GET_ELEMENT__SPECIAL : OP::OP_GET_ELEMENT);
686: #else
1.229 misha 687: O(*$$, OP::OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */
1.267 misha 688: #endif
1.1 paf 689: };
690: name_advance2: name_expr_value {
691: /* stack: context */
692: $$=$1; /* stack: context,name */
1.267 misha 693: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT__SPECIAL
694: O(*$$, is_special_element(*$$) ? OP::OP_GET_ELEMENT__SPECIAL : OP::OP_GET_ELEMENT);
695: #else
1.229 misha 696: O(*$$, OP::OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */
1.267 misha 697: #endif
1.1 paf 698: }
1.4 paf 699: | STRING BOGUS
1.1 paf 700: ;
701: name_expr_value:
1.4 paf 702: STRING /* subname_is_const */
1.1 paf 703: | name_expr_subvar_value /* $subname_is_var_value */
1.160 parser 704: | name_expr_with_subvar_value /* xxx$part_of_subname_is_var_value */
1.166 parser 705: | name_square_code_value /* [codes] */
1.1 paf 706: ;
707: name_expr_subvar_value: '$' subvar_ref_name_rdive {
708: $$=$2;
1.229 misha 709: O(*$$, OP::OP_GET_ELEMENT);
1.1 paf 710: };
1.4 paf 711: name_expr_with_subvar_value: STRING subvar_get_writes {
1.238 misha 712: YYSTYPE code;
1.183 paf 713: {
1.206 paf 714: change_string_literal_to_write_string_literal(*(code=$1));
715: P(*code, *$2);
1.183 paf 716: }
1.206 paf 717: $$=N();
1.229 misha 718: OA(*$$, OP::OP_STRING_POOL, code);
1.1 paf 719: };
1.212 paf 720: name_square_code_value: '[' {
721: // allow $result_or_other_variable[ letters here any time ]
722: *reinterpret_cast<bool*>(&$$)=PC.explicit_result; PC.explicit_result=false;
723: } codes {
1.213 paf 724: PC.explicit_result=*reinterpret_cast<bool*>(&$2);
1.212 paf 725: } ']' {
1.206 paf 726: $$=N();
1.267 misha 727: #ifdef OPTIMIZE_BYTECODE_GET_ELEMENT__SPECIAL
728: if(!maybe_append_simple_diving_code(*$$, *$3))
729: #endif
730: {
1.229 misha 731: OA(*$$, OP::OP_OBJECT_POOL, $3); /* stack: empty write context */
1.183 paf 732: /* some code that writes to that context */
733: /* context=pop; stack: context.value() */
1.267 misha 734: }
1.160 parser 735: };
1.154 parser 736: subvar_ref_name_rdive: STRING {
1.206 paf 737: $$=N();
1.229 misha 738: O(*$$, OP::OP_WITH_READ);
1.206 paf 739: P(*$$, *$1);
1.1 paf 740: };
1.259 misha 741: subvar_get_writes: subvar__get_write | subvar_get_writes subvar__get_write { $$=$1; P(*$$, *$2); };
1.1 paf 742: subvar__get_write: '$' subvar_ref_name_rdive {
743: $$=$2;
1.229 misha 744: O(*$$, OP::OP_GET_ELEMENT__WRITE);
1.42 paf 745: };
746:
1.154 parser 747: class_prefix:
748: class_static_prefix
749: | class_constructor_prefix
750: ;
1.155 parser 751: class_static_prefix: STRING ':' {
752: $$=$1; // stack: class name string
1.206 paf 753: if(*LA2S(*$$) == BASE_NAME) { // pseudo BASE class
754: if(VStateless_class* base=PC.cclass->base_class()) {
1.275 moko 755: change_string_literal_value(*$$, *new String(base->type()));
1.189 paf 756: } else {
757: strcpy(PC.error, "no base class declared");
758: YYERROR;
759: }
760: }
1.238 misha 761: // optimized OP_VALUE+origin+string+OP_GET_CLASS => OP_VALUE__GET_CLASS+origin+string
1.267 misha 762: change_first(*$$, OP::OP_VALUE, OP::OP_VALUE__GET_CLASS);
1.155 parser 763: };
764: class_constructor_prefix: class_static_prefix ':' {
1.154 parser 765: $$=$1;
1.180 paf 766: if(!PC.in_call_value) {
1.154 parser 767: strcpy(PC.error, ":: not allowed here");
768: YYERROR;
769: }
1.229 misha 770: O(*$$, OP::OP_PREPARE_TO_CONSTRUCT_OBJECT);
1.1 paf 771: };
772:
1.53 paf 773:
1.56 paf 774: /* expr */
1.53 paf 775:
1.214 paf 776: expr_value: expr;
1.56 paf 777: expr:
1.214 paf 778: double_or_STRING
1.216 paf 779: | true_value
780: | false_value
1.64 paf 781: | get_value
1.66 paf 782: | call_value
1.259 misha 783: | '"' string_inside_quotes_value '"' { $$ = $2; }
784: | '\'' string_inside_quotes_value '\'' { $$ = $2; }
1.60 paf 785: | '(' expr ')' { $$ = $2; }
786: /* stack: operand // stack: @operand */
1.259 misha 787: | '-' expr %prec NUNARY { $$=$2; O(*$$, OP::OP_NEG); }
788: | '+' expr %prec NUNARY { $$=$2; }
789: | '~' expr { $$=$2; O(*$$, OP::OP_INV); }
790: | '!' expr { $$=$2; O(*$$, OP::OP_NOT); }
791: | "def" expr { $$=$2; O(*$$, OP::OP_DEF); }
792: | "in" expr { $$=$2; O(*$$, OP::OP_IN); }
793: | "-f" expr { $$=$2; O(*$$, OP::OP_FEXISTS); }
794: | "-d" expr { $$=$2; O(*$$, OP::OP_DEXISTS); }
1.60 paf 795: /* stack: a,b // stack: a@b */
1.259 misha 796: | expr '-' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_SUB); }
797: | expr '+' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_ADD); }
798: | expr '*' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_MUL); }
799: | expr '/' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_DIV); }
800: | expr '%' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_MOD); }
801: | expr '\\' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_INTDIV); }
802: | expr "<<" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_SL); }
803: | expr ">>" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_SR); }
804: | expr '&' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_AND); }
805: | expr '|' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_OR); }
806: | expr "!|" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_BIN_XOR); }
807: | expr "&&" expr { $$=$1; OA(*$$, OP::OP_NESTED_CODE, $3); O(*$$, OP::OP_LOG_AND); }
808: | expr "||" expr { $$=$1; OA(*$$, OP::OP_NESTED_CODE, $3); O(*$$, OP::OP_LOG_OR); }
809: | expr "!||" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_LOG_XOR); }
810: | expr '<' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_LT); }
811: | expr '>' expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_GT); }
812: | expr "<=" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_LE); }
813: | expr ">=" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_GE); }
814: | expr "==" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_EQ); }
815: | expr "!=" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_NUM_NE); }
816: | expr "lt" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_LT); }
817: | expr "gt" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_GT); }
818: | expr "le" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_LE); }
819: | expr "ge" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_GE); }
820: | expr "eq" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_EQ); }
821: | expr "ne" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_STR_NE); }
822: | expr "is" expr { $$=$1; P(*$$, *$3); O(*$$, OP::OP_IS); }
1.56 paf 823: ;
1.214 paf 824:
825: double_or_STRING: STRING {
1.238 misha 826: // optimized OP_STRING => OP_VALUE for doubles
1.214 paf 827: maybe_change_string_literal_to_double_literal(*($$=$1));
828: };
1.55 paf 829:
1.65 paf 830: string_inside_quotes_value: maybe_codes {
1.238 misha 831: #ifdef OPTIMIZE_BYTECODE_STRING_POOL
832: // it brakes ^if(" 09 "){...}
833: YYSTYPE code=$1;
834: $$=N();
1.267 misha 835: if(code->count()==3 && change_first(*code, OP::OP_STRING__WRITE, OP::OP_VALUE)){
1.238 misha 836: // optimized OP_STRING__WRITE+origin+value => OP_VALUE+origin+value without starting OP_STRING_POOL
837: P(*$$, *code);
838: } else {
839: OA(*$$, OP::OP_STRING_POOL, code); /* stack: empty write context */
840: }
841: #else
1.206 paf 842: $$=N();
1.229 misha 843: OA(*$$, OP::OP_STRING_POOL, $1); /* stack: empty write context */
1.238 misha 844: #endif
1.183 paf 845: /* some code that writes to that context */
846: /* context=pop; stack: context.get_string() */
1.53 paf 847: };
1.1 paf 848:
1.27 paf 849: /* basics */
1.1 paf 850:
1.81 paf 851: write_string: STRING {
1.238 misha 852: // optimized OP_STRING+OP_WRITE_VALUE => OP_STRING__WRITE
1.259 misha 853: change_string_literal_to_write_string_literal(*($$=$1));
1.54 paf 854: };
855:
1.261 moko 856: empty_value: /* empty */ { $$=VL(/*we know that we will not change it*/const_cast<VString*>(&vempty), 0, 0, 0); }
1.259 misha 857: true_value: "true" { $$ = VL(/*we know that we will not change it*/const_cast<VBool*>(&vtrue), 0, 0, 0); }
858: false_value: "false" { $$ = VL(/*we know that we will not change it*/const_cast<VBool*>(&vfalse), 0, 0, 0); }
1.216 paf 859:
1.259 misha 860: empty: /* empty */ { $$=N(); };
1.1 paf 861:
862: %%
1.105 paf 863: #endif
1.1 paf 864:
865: /*
866: 000$111(2222)00
867: 000$111{3333}00
1.9 paf 868: $,^: push,=0
1.1 paf 869: 1:( { break=pop
870: 2:( ) pop
871: 3:{ } pop
872:
873: 000^111(2222)4444{33333}4000
1.9 paf 874: $,^: push,=0
1.1 paf 875: 1:( { break=pop
876: 2:( )=4
877: 3:{ }=4
878: 4:[^({]=pop
879: */
880:
1.206 paf 881: inline void ungetc(Parse_control& pc, uint last_line_end_col) {
882: pc.source--;
883: if(pc.pos.col==0) {
884: --pc.pos.line; pc.pos.col=last_line_end_col;
885: } else
886: --pc.pos.col;
887:
888: }
889: static int yylex(YYSTYPE *lvalp, void *apc) {
890: register Parse_control& pc=*static_cast<Parse_control*>(apc);
891:
892: #define lexical_brackets_nestage pc.brackets_nestages[pc.ls_sp]
1.48 paf 893: #define RC {result=c; goto break2; }
1.1 paf 894:
1.206 paf 895: register int c;
896: int result;
1.1 paf 897:
1.206 paf 898: if(pc.pending_state) {
899: result=pc.pending_state;
900: pc.pending_state=0;
1.1 paf 901: return result;
902: }
903:
1.206 paf 904: const char *begin=pc.source;
905: Pos begin_pos=pc.pos;
1.91 paf 906: const char *end;
1.67 paf 907: int skip_analized=0;
1.50 paf 908: while(true) {
1.206 paf 909: c=*(end=(pc.source++));
910: // fprintf(stderr, "\nchar: %c %02X; nestage: %d, sp=%d", c, c, lexical_brackets_nestage, pc.sp);
1.1 paf 911:
1.208 paf 912: if(c=='\n')
1.206 paf 913: pc.pos_next_line();
1.208 paf 914: else
1.206 paf 915: pc.pos_next_c(c);
1.208 paf 916: // fprintf(stderr, "\nchar: %c file(%d:%d)", c, pc.pos.line, pc.pos.col);
1.73 paf 917:
1.208 paf 918: if(pc.pos.col==0+1 && c=='@') {
1.206 paf 919: if(pc.ls==LS_DEF_SPECIAL_BODY) {
1.175 paf 920: // @SPECIAL
921: // ...
922: // @<here =
1.206 paf 923: pop_LS(pc); // exiting from LS_DEF_SPECIAL_BODY state
1.175 paf 924: } // continuing checks
1.206 paf 925: if(pc.ls==LS_USER) {
926: push_LS(pc, LS_DEF_NAME);
1.171 parser 927: RC;
1.175 paf 928: } else // @ in first column inside some code [when could that be?]
1.171 parser 929: result=BAD_METHOD_DECL_START;
930: goto break2;
1.209 paf 931: }
932: if(c=='^') {
1.206 paf 933: if(pc.ls==LS_METHOD_AFTER) {
1.203 paf 934: // handle after-method situation
1.206 paf 935: pop_LS(pc);
1.203 paf 936: result=EON;
937: skip_analized=-1; // return to punctuation afterwards to assure it's literality
938: goto break2;
939: }
1.206 paf 940: switch(pc.ls) {
1.169 parser 941: case LS_EXPRESSION_VAR_NAME_WITH_COLON:
942: case LS_EXPRESSION_VAR_NAME_WITHOUT_COLON:
943: case LS_VAR_NAME_SIMPLE_WITH_COLON:
944: case LS_VAR_NAME_SIMPLE_WITHOUT_COLON:
945: case LS_VAR_NAME_CURLY:
946: case LS_METHOD_NAME:
1.194 paf 947: case LS_USER_COMMENT:
1.169 parser 948: case LS_DEF_COMMENT:
949: // no literals in names, please
950: break;
951: default:
1.206 paf 952: switch(*pc.source) {
1.165 parser 953: // ^escaping some punctuators
1.228 misha 954: case '^': case '$': case ';': case '@':
1.126 paf 955: case '(': case ')':
1.48 paf 956: case '[': case ']':
957: case '{': case '}':
1.172 parser 958: case '"': case ':':
1.40 paf 959: if(end!=begin) {
1.206 paf 960: if(!pc.string_start)
961: pc.string_start=begin_pos;
1.40 paf 962: // append piece till ^
1.206 paf 963: pc.string.append_strdup_know_length(begin, end-begin);
1.40 paf 964: }
1.63 paf 965: // reset piece 'begin' position & line
1.206 paf 966: begin=pc.source; // ->punctuation
967: begin_pos=pc.pos;
1.203 paf 968: // skip over _ after ^
1.206 paf 969: pc.source++; pc.pos.col++;
1.203 paf 970: // skip analysis = forced literal
971: continue;
1.114 paf 972:
973: // converting ^#HH into char(hex(HH))
974: case '#':
975: if(end!=begin) {
1.206 paf 976: if(!pc.string_start)
977: pc.string_start=begin_pos;
1.114 paf 978: // append piece till ^
1.206 paf 979: pc.string.append_strdup_know_length(begin, end-begin);
1.114 paf 980: }
981: // #HH ?
1.228 misha 982: if(pc.source[1] && isxdigit(pc.source[1]) && pc.source[2] && isxdigit(pc.source[2])) {
1.218 paf 983: char c=(char)(
1.206 paf 984: hex_value[(unsigned char)pc.source[1]]*0x10+
1.218 paf 985: hex_value[(unsigned char)pc.source[2]]);
1.206 paf 986: if(c==0) {
1.114 paf 987: result=BAD_HEX_LITERAL;
988: goto break2; // wrong hex value[no ^#00 chars allowed]: bail out
989: }
990: // append char(hex(HH))
1.206 paf 991: pc.string.append(c);
1.114 paf 992: // skip over ^#HH
1.206 paf 993: pc.source+=3;
994: pc.pos.col+=3;
1.114 paf 995: // reset piece 'begin' position & line
1.206 paf 996: begin=pc.source; // ->after ^#HH
997: begin_pos=pc.pos;
1.203 paf 998: // skip analysis = forced literal
1.114 paf 999: continue;
1000: }
1.228 misha 1001: // just escaped char
1002: // reset piece 'begin' position & line
1003: begin=pc.source;
1004: begin_pos=pc.pos;
1005: // skip over _ after ^
1006: pc.source++; pc.pos.col++;
1007: // skip analysis = forced literal
1008: continue;
1.1 paf 1009: }
1.169 parser 1010: break;
1.203 paf 1011: }
1.169 parser 1012: }
1.113 paf 1013: // #comment start skipping
1.206 paf 1014: if(c=='#' && pc.pos.col==1) {
1.112 paf 1015: if(end!=begin) {
1.206 paf 1016: if(!pc.string_start)
1017: pc.string_start=begin_pos;
1.112 paf 1018: // append piece till #
1.206 paf 1019: pc.string.append_strdup_know_length(begin, end-begin);
1.112 paf 1020: }
1021: // fall into COMMENT lexical state [wait for \n]
1.206 paf 1022: push_LS(pc, LS_USER_COMMENT);
1.175 paf 1023: continue;
1.112 paf 1024: }
1.206 paf 1025: switch(pc.ls) {
1.10 paf 1026:
1027: // USER'S = NOT OURS
1.1 paf 1028: case LS_USER:
1.206 paf 1029: case LS_NAME_SQUARE_PART: // name.[here].xxx
1030: if(pc.trim_bof)
1.153 parser 1031: switch(c) {
1032: case '\n': case ' ': case '\t':
1.206 paf 1033: begin=pc.source;
1034: begin_pos=pc.pos;
1.152 parser 1035: continue; // skip it
1.153 parser 1036: default:
1.206 paf 1037: pc.trim_bof=false;
1.152 parser 1038: }
1.48 paf 1039: switch(c) {
1040: case '$':
1.206 paf 1041: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1042: RC;
1043: case '^':
1.206 paf 1044: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1045: RC;
1.166 parser 1046: case ']':
1.206 paf 1047: if(pc.ls==LS_NAME_SQUARE_PART)
1.166 parser 1048: if(--lexical_brackets_nestage==0) {// $name.[co<]?>de<]?>
1.206 paf 1049: pop_LS(pc); // $name.[co<]>de<]!>
1.166 parser 1050: RC;
1051: }
1.160 parser 1052: break;
1.166 parser 1053: case '[': // $name.[co<[>de]
1.206 paf 1054: if(pc.ls==LS_NAME_SQUARE_PART)
1.166 parser 1055: lexical_brackets_nestage++;
1.161 parser 1056: break;
1.112 paf 1057: }
1.209 paf 1058: if(pc.explicit_result && c)
1059: switch(c) {
1.276 moko 1060: default:
1061: pc.string.append(c);
1.209 paf 1062: case '\n': case ' ': case '\t':
1063: begin=pc.source;
1064: begin_pos=pc.pos;
1.276 moko 1065: continue;
1.209 paf 1066: }
1.112 paf 1067: break;
1068:
1069: // #COMMENT
1.194 paf 1070: case LS_USER_COMMENT:
1.112 paf 1071: if(c=='\n') {
1072: // skip comment
1.206 paf 1073: begin=pc.source;
1074: begin_pos=pc.pos;
1.112 paf 1075:
1.206 paf 1076: pop_LS(pc);
1.112 paf 1077: continue;
1.1 paf 1078: }
1.48 paf 1079: break;
1080:
1081: // STRING IN EXPRESSION
1.145 parser 1082: case LS_EXPRESSION_STRING_QUOTED:
1083: case LS_EXPRESSION_STRING_APOSTROFED:
1.48 paf 1084: switch(c) {
1085: case '"':
1.145 parser 1086: case '\'':
1087: if(
1.270 moko 1088: (pc.ls == LS_EXPRESSION_STRING_QUOTED && c=='"') ||
1089: (pc.ls == LS_EXPRESSION_STRING_APOSTROFED && c=='\'') ) {
1.206 paf 1090: pop_LS(pc); //"abc". | 'abc'.
1.145 parser 1091: RC;
1092: }
1093: break;
1.48 paf 1094: case '$':
1.206 paf 1095: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1096: RC;
1097: case '^':
1.206 paf 1098: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1099: RC;
1.10 paf 1100: }
1101: break;
1102:
1103: // METHOD DEFINITION
1104: case LS_DEF_NAME:
1.48 paf 1105: switch(c) {
1106: case '[':
1.206 paf 1107: pc.ls=LS_DEF_PARAMS;
1.48 paf 1108: RC;
1109: case '\n':
1.206 paf 1110: pc.ls=LS_DEF_SPECIAL_BODY;
1.48 paf 1111: RC;
1.10 paf 1112: }
1113: break;
1.48 paf 1114:
1.10 paf 1115: case LS_DEF_PARAMS:
1.48 paf 1116: switch(c) {
1.192 paf 1117: case '$': // common error
1.193 paf 1118: result=BAD_METHOD_PARAMETER_NAME_CHARACTER;
1119: goto break2;
1.48 paf 1120: case ';':
1121: RC;
1122: case ']':
1.206 paf 1123: pc.ls=*pc.source=='['?LS_DEF_LOCALS:LS_DEF_COMMENT;
1.48 paf 1124: RC;
1.49 paf 1125: case '\n': // wrong. bailing out
1.206 paf 1126: pop_LS(pc);
1.48 paf 1127: RC;
1.10 paf 1128: }
1129: break;
1.48 paf 1130:
1.10 paf 1131: case LS_DEF_LOCALS:
1.48 paf 1132: switch(c) {
1133: case '[':
1134: case ';':
1135: RC;
1136: case ']':
1.206 paf 1137: pc.ls=LS_DEF_COMMENT;
1.48 paf 1138: RC;
1139: case '\n': // wrong. bailing out
1.206 paf 1140: pop_LS(pc);
1.48 paf 1141: RC;
1.10 paf 1142: }
1143: break;
1.48 paf 1144:
1.10 paf 1145: case LS_DEF_COMMENT:
1146: if(c=='\n') {
1.206 paf 1147: pop_LS(pc);
1.48 paf 1148: RC;
1.37 paf 1149: }
1150: break;
1151:
1.48 paf 1152: case LS_DEF_SPECIAL_BODY:
1.175 paf 1153: if(c=='\n')
1.48 paf 1154: RC;
1155: break;
1156:
1157: // (EXPRESSION)
1.69 paf 1158: case LS_VAR_ROUND:
1159: case LS_METHOD_ROUND:
1.48 paf 1160: switch(c) {
1161: case ')':
1.270 moko 1162: if(--lexical_brackets_nestage==0) {
1.206 paf 1163: if(pc.ls==LS_METHOD_ROUND) // method round param ended
1164: pc.ls=LS_METHOD_AFTER; // look for method end
1165: else // pc.ls==LS_VAR_ROUND // variable constructor ended
1166: pop_LS(pc); // return to normal life
1.270 moko 1167: }
1.48 paf 1168: RC;
1.194 paf 1169: case '#': // comment start skipping
1170: if(end!=begin) {
1.206 paf 1171: if(!pc.string_start)
1172: pc.string_start=begin_pos;
1.194 paf 1173: // append piece till #
1.206 paf 1174: pc.string.append_strdup_know_length(begin, end-begin);
1.194 paf 1175: }
1176: // fall into COMMENT lexical state [wait for \n]
1.206 paf 1177: push_LS(pc, LS_EXPRESSION_COMMENT);
1.194 paf 1178: lexical_brackets_nestage=1;
1179: continue;
1.48 paf 1180: case '$':
1.206 paf 1181: push_LS(pc, LS_EXPRESSION_VAR_NAME_WITH_COLON);
1.48 paf 1182: RC;
1183: case '^':
1.206 paf 1184: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1185: RC;
1186: case '(':
1187: lexical_brackets_nestage++;
1188: RC;
1.67 paf 1189: case '-':
1.206 paf 1190: switch(*pc.source) {
1.127 paf 1191: case 'f': // -f
1.67 paf 1192: skip_analized=1;
1193: result=FEXISTS;
1.127 paf 1194: goto break2;
1195: case 'd': // -d
1196: skip_analized=1;
1197: result=DEXISTS;
1198: goto break2;
1.191 paf 1199: default: // minus
1.67 paf 1200: result=c;
1.127 paf 1201: goto break2;
1202: }
1.67 paf 1203: goto break2;
1.173 paf 1204: case '+': case '*': case '/': case '%': case '\\':
1.58 paf 1205: case '~':
1.48 paf 1206: case ';':
1207: RC;
1.193 paf 1208: case '&': case '|':
1.206 paf 1209: if(*pc.source==c) { // && ||
1.193 paf 1210: result=c=='&'?LAND:LOR;
1.67 paf 1211: skip_analized=1;
1.58 paf 1212: } else
1213: result=c;
1214: goto break2;
1.193 paf 1215: case '!':
1.206 paf 1216: switch(pc.source[0]) {
1.193 paf 1217: case '|': // !| !||
1218: skip_analized=1;
1.206 paf 1219: if(pc.source[1]=='|') {
1.193 paf 1220: skip_analized++;
1221: result=LXOR;
1222: } else
1223: result=NXOR;
1224: goto break2;
1225: case '=': // !=
1226: skip_analized=1;
1227: result=NNE;
1228: goto break2;
1229: }
1230: RC;
1.195 paf 1231:
1232: case '<': // <<, <=, <
1.206 paf 1233: switch(*pc.source) {
1.195 paf 1234: case '<': // <[<]
1235: skip_analized=1; result=NSL; break;
1236: case '=': // <[=]
1237: skip_analized=1; result=NLE; break;
1238: default: // <[]
1239: result=c; break;
1240: }
1241: goto break2;
1242: case '>': // >>, >=, >
1.206 paf 1243: switch(*pc.source) {
1.195 paf 1244: case '>': // >[>]
1245: skip_analized=1; result=NSR; break;
1246: case '=': // >[=]
1247: skip_analized=1; result=NGE; break;
1248: default: // >[]
1249: result=c; break;
1250: }
1251: goto break2;
1252: case '=': // ==
1.206 paf 1253: switch(*pc.source) {
1.195 paf 1254: case '=': // =[=]
1255: skip_analized=1; result=NEQ; break;
1256: default: // =[]
1257: result=c; break; // not used now
1258: }
1.58 paf 1259: goto break2;
1.195 paf 1260:
1.48 paf 1261: case '"':
1.206 paf 1262: push_LS(pc, LS_EXPRESSION_STRING_QUOTED);
1.145 parser 1263: RC;
1264: case '\'':
1.206 paf 1265: push_LS(pc, LS_EXPRESSION_STRING_APOSTROFED);
1.48 paf 1266: RC;
1.50 paf 1267: case 'l': case 'g': case 'e': case 'n':
1.51 paf 1268: if(end==begin) // right after whitespace
1.206 paf 1269: if(isspace(pc.source[1])) {
1270: switch(*pc.source) {
1.117 paf 1271: // case '?': // ok [and bad cases, yacc would bark at them]
1272: case 't': // lt gt [et nt]
1273: result=c=='l'?SLT:c=='g'?SGT:BAD_STRING_COMPARISON_OPERATOR;
1274: skip_analized=1;
1275: goto break2;
1276: case 'e': // le ge ne [ee]
1277: result=c=='l'?SLE:c=='g'?SGE:c=='n'?SNE:BAD_STRING_COMPARISON_OPERATOR;
1278: skip_analized=1;
1279: goto break2;
1280: case 'q': // eq [lq gq nq]
1281: result=c=='e'?SEQ:BAD_STRING_COMPARISON_OPERATOR;
1282: skip_analized=1;
1283: goto break2;
1284: }
1.67 paf 1285: }
1286: break;
1287: case 'i':
1288: if(end==begin) // right after whitespace
1.206 paf 1289: if(isspace(pc.source[1])) {
1290: switch(pc.source[0]) {
1.117 paf 1291: case 'n': // in
1.95 paf 1292: skip_analized=1;
1293: result=IN;
1294: goto break2;
1.117 paf 1295: case 's': // is
1.95 paf 1296: skip_analized=1;
1297: result=IS;
1298: goto break2;
1299: }
1.67 paf 1300: }
1301: break;
1302: case 'd':
1303: if(end==begin) // right after whitespace
1.206 paf 1304: if(pc.source[0]=='e' && pc.source[1]=='f') { // def
1.225 misha 1305: switch(pc.source[2]){
1306: case ' ': case '\t': case '\n': case '"': case '\'': case '^': case '$': // non-quoted string without whitespace after 'def' is not allowed
1307: skip_analized=2;
1308: result=DEF;
1309: goto break2;
1310: }
1311: // error: incorrect char after 'def'
1.50 paf 1312: }
1.48 paf 1313: break;
1.216 paf 1314: case 't':
1315: if(end==begin) // right after whitespace
1.225 misha 1316: if(pc.source[0]=='r' && pc.source[1]=='u' && pc.source[2]=='e') { // true
1.216 paf 1317: skip_analized=3;
1318: result=LITERAL_TRUE;
1319: goto break2;
1320: }
1321: break;
1322: case 'f':
1323: if(end==begin) // right after whitespace
1.225 misha 1324: if(pc.source[0]=='a' && pc.source[1]=='l' && pc.source[2]=='s' && pc.source[3]=='e') { // false
1.216 paf 1325: skip_analized=4;
1326: result=LITERAL_FALSE;
1327: goto break2;
1328: }
1329: break;
1.48 paf 1330: case ' ': case '\t': case '\n':
1.63 paf 1331: if(end!=begin) { // there were a string after previous operator?
1332: result=0; // return that string
1333: goto break2;
1.48 paf 1334: }
1.63 paf 1335: // that's a leading|traling space or after-operator-space
1336: // ignoring it
1337: // reset piece 'begin' position & line
1.206 paf 1338: begin=pc.source; // after whitespace char
1339: begin_pos=pc.pos;
1.48 paf 1340: continue;
1.1 paf 1341: }
1342: break;
1.194 paf 1343: case LS_EXPRESSION_COMMENT:
1344: if(c=='(')
1345: lexical_brackets_nestage++;
1346:
1.206 paf 1347: switch(*pc.source) {
1.194 paf 1348: case '\n': case ')':
1.206 paf 1349: if(*pc.source==')')
1.194 paf 1350: if(--lexical_brackets_nestage!=0)
1351: continue;
1352:
1353: // skip comment
1.206 paf 1354: begin=pc.source;
1355: begin_pos=pc.pos;
1.194 paf 1356:
1.206 paf 1357: pop_LS(pc);
1.194 paf 1358: continue;
1359: }
1360: break;
1.1 paf 1361:
1.10 paf 1362: // VARIABLE GET/PUT/WITH
1.166 parser 1363: case LS_VAR_NAME_SIMPLE_WITH_COLON:
1364: case LS_VAR_NAME_SIMPLE_WITHOUT_COLON:
1365: case LS_EXPRESSION_VAR_NAME_WITH_COLON:
1366: case LS_EXPRESSION_VAR_NAME_WITHOUT_COLON:
1367: if(
1.206 paf 1368: pc.ls==LS_EXPRESSION_VAR_NAME_WITH_COLON ||
1369: pc.ls==LS_EXPRESSION_VAR_NAME_WITHOUT_COLON) {
1.181 paf 1370: // name in expr ends also before
1.48 paf 1371: switch(c) {
1.181 paf 1372: // expression minus
1.92 paf 1373: case '-':
1.181 paf 1374: // expression integer division
1375: case '\\':
1.206 paf 1376: pop_LS(pc);
1377: pc.ungetc();
1.48 paf 1378: result=EON;
1379: goto break2;
1380: }
1381: }
1.166 parser 1382: if(
1.206 paf 1383: pc.ls==LS_VAR_NAME_SIMPLE_WITHOUT_COLON ||
1384: pc.ls==LS_EXPRESSION_VAR_NAME_WITHOUT_COLON) {
1.142 parser 1385: // name already has ':', stop before next
1386: switch(c) {
1387: case ':':
1.206 paf 1388: pop_LS(pc);
1389: pc.ungetc();
1.142 parser 1390: result=EON;
1391: goto break2;
1392: }
1393: }
1.48 paf 1394: switch(c) {
1395: case 0:
1396: case ' ': case '\t': case '\n':
1397: case ';':
1.126 paf 1398: case ']': case '}': case ')':
1399: case '"': case '\'':
1.139 parser 1400: case '<': case '>': // these stand for HTML brackets AND expression binary ops
1.253 misha 1401: case '+': case '*': case '/': case '\\': case '%':
1.92 paf 1402: case '&': case '|':
1403: case '=': case '!':
1.99 paf 1404: // common delimiters
1.190 paf 1405: case ',': case '?': case '#':
1.220 paf 1406: // mysql column separators
1407: case '`':
1.139 parser 1408: // before call
1409: case '^':
1.206 paf 1410: pop_LS(pc);
1411: pc.ungetc();
1.13 paf 1412: result=EON;
1.1 paf 1413: goto break2;
1.48 paf 1414: case '[':
1.162 parser 1415: // $name.<[>code]
1.206 paf 1416: if(pc.pos.col>1/*not first column*/ && (
1.163 parser 1417: end[-1]=='$'/*was start of get*/ ||
1418: end[-1]==':'/*was class name delim */ ||
1419: end[-1]=='.'/*was name delim */
1.162 parser 1420: )) {
1.206 paf 1421: push_LS(pc, LS_NAME_SQUARE_PART);
1.162 parser 1422: lexical_brackets_nestage=1;
1423: RC;
1424: }
1.206 paf 1425: pc.ls=LS_VAR_SQUARE;
1.1 paf 1426: lexical_brackets_nestage=1;
1.48 paf 1427: RC;
1428: case '{':
1429: if(begin==end) { // ${name}, no need of EON, switching LS
1.206 paf 1430: pc.ls=LS_VAR_NAME_CURLY;
1.48 paf 1431: } else {
1.206 paf 1432: pc.ls=LS_VAR_CURLY;
1.48 paf 1433: lexical_brackets_nestage=1;
1434: }
1.69 paf 1435:
1.48 paf 1436: RC;
1437: case '(':
1.206 paf 1438: pc.ls=LS_VAR_ROUND;
1.1 paf 1439: lexical_brackets_nestage=1;
1.48 paf 1440: RC;
1441: case '.': // name part delim
1442: case '$': // name part subvar
1.160 parser 1443: case ':': // class<:>name
1.166 parser 1444: // go to _WITHOUT_COLON state variant...
1.206 paf 1445: if(pc.ls==LS_VAR_NAME_SIMPLE_WITH_COLON)
1446: pc.ls=LS_VAR_NAME_SIMPLE_WITHOUT_COLON;
1447: else if(pc.ls==LS_EXPRESSION_VAR_NAME_WITH_COLON)
1448: pc.ls=LS_EXPRESSION_VAR_NAME_WITHOUT_COLON;
1.166 parser 1449: // ...stop before next ':'
1.48 paf 1450: RC;
1.1 paf 1451: }
1452: break;
1.48 paf 1453:
1.1 paf 1454: case LS_VAR_NAME_CURLY:
1.48 paf 1455: switch(c) {
1.162 parser 1456: case '[':
1.166 parser 1457: // ${name.<[>code]}
1.206 paf 1458: push_LS(pc, LS_NAME_SQUARE_PART);
1.160 parser 1459: lexical_brackets_nestage=1;
1460: RC;
1.48 paf 1461: case '}': // ${name} finished, restoring LS
1.206 paf 1462: pop_LS(pc);
1.48 paf 1463: RC;
1464: case '.': // name part delim
1465: case '$': // name part subvar
1466: case ':': // ':name' or 'class:name'
1467: RC;
1.1 paf 1468: }
1469: break;
1.48 paf 1470:
1471: case LS_VAR_SQUARE:
1472: switch(c) {
1473: case '$':
1.206 paf 1474: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1475: RC;
1476: case '^':
1.206 paf 1477: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1478: RC;
1479: case ']':
1.1 paf 1480: if(--lexical_brackets_nestage==0) {
1.206 paf 1481: pop_LS(pc);
1.48 paf 1482: RC;
1.1 paf 1483: }
1.48 paf 1484: break;
1485: case ';': // operator_or_fmt;value delim
1486: RC;
1487: case '[':
1488: lexical_brackets_nestage++;
1489: break;
1.1 paf 1490: }
1491: break;
1.48 paf 1492:
1.1 paf 1493: case LS_VAR_CURLY:
1.48 paf 1494: switch(c) {
1495: case '$':
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);
1.48 paf 1500: RC;
1501: case '}':
1.1 paf 1502: if(--lexical_brackets_nestage==0) {
1.206 paf 1503: pop_LS(pc);
1.48 paf 1504: RC;
1.1 paf 1505: }
1.48 paf 1506: break;
1507: case '{':
1.1 paf 1508: lexical_brackets_nestage++;
1.48 paf 1509: break;
1510: }
1.1 paf 1511: break;
1512:
1.10 paf 1513: // METHOD CALL
1.1 paf 1514: case LS_METHOD_NAME:
1.48 paf 1515: switch(c) {
1516: case '[':
1.166 parser 1517: // ^name.<[>code].xxx
1.206 paf 1518: if(pc.pos.col>1/*not first column*/ && (
1.163 parser 1519: end[-1]=='^'/*was start of call*/ || // never, ^[ is literal...
1520: end[-1]==':'/*was class name delim */ ||
1521: end[-1]=='.'/*was name delim */
1.162 parser 1522: )) {
1.206 paf 1523: push_LS(pc, LS_NAME_SQUARE_PART);
1.162 parser 1524: lexical_brackets_nestage=1;
1525: RC;
1526: }
1.206 paf 1527: pc.ls=LS_METHOD_SQUARE;
1.1 paf 1528: lexical_brackets_nestage=1;
1.48 paf 1529: RC;
1530: case '{':
1.206 paf 1531: pc.ls=LS_METHOD_CURLY;
1.1 paf 1532: lexical_brackets_nestage=1;
1.48 paf 1533: RC;
1.69 paf 1534: case '(':
1.206 paf 1535: pc.ls=LS_METHOD_ROUND;
1.69 paf 1536: lexical_brackets_nestage=1;
1537: RC;
1.48 paf 1538: case '.': // name part delim
1539: case '$': // name part subvar
1540: case ':': // ':name' or 'class:name'
1.170 parser 1541: case '^': // ^abc^xxx wrong. bailing out
1542: case ']': case '}': case ')': // ^abc]}) wrong. bailing out
1.207 paf 1543: case ' ': // ^if ( wrong. bailing out
1.48 paf 1544: RC;
1.1 paf 1545: }
1546: break;
1.48 paf 1547:
1548: case LS_METHOD_SQUARE:
1549: switch(c) {
1550: case '$':
1.206 paf 1551: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1552: RC;
1553: case '^':
1.206 paf 1554: push_LS(pc, LS_METHOD_NAME);
1.48 paf 1555: RC;
1556: case ';': // param delim
1557: RC;
1558: case ']':
1.1 paf 1559: if(--lexical_brackets_nestage==0) {
1.206 paf 1560: pc.ls=LS_METHOD_AFTER;
1.48 paf 1561: RC;
1.1 paf 1562: }
1.48 paf 1563: break;
1564: case '[':
1.1 paf 1565: lexical_brackets_nestage++;
1.48 paf 1566: break;
1567: }
1.1 paf 1568: break;
1.48 paf 1569:
1.1 paf 1570: case LS_METHOD_CURLY:
1.48 paf 1571: switch(c) {
1572: case '$':
1.206 paf 1573: push_LS(pc, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1574: RC;
1575: case '^':
1.206 paf 1576: push_LS(pc, LS_METHOD_NAME);
1.94 paf 1577: RC;
1578: case ';': // param delim
1.48 paf 1579: RC;
1580: case '}':
1.1 paf 1581: if(--lexical_brackets_nestage==0) {
1.206 paf 1582: pc.ls=LS_METHOD_AFTER;
1.48 paf 1583: RC;
1.1 paf 1584: }
1.48 paf 1585: break;
1586: case '{':
1.1 paf 1587: lexical_brackets_nestage++;
1.48 paf 1588: break;
1589: }
1.209 paf 1590: if(pc.explicit_result && c)
1591: switch(c) {
1.276 moko 1592: default:
1593: pc.string.append(c);
1.209 paf 1594: case '\n': case ' ': case '\t':
1595: begin=pc.source;
1596: begin_pos=pc.pos;
1.276 moko 1597: continue;
1.209 paf 1598: }
1.1 paf 1599: break;
1.48 paf 1600:
1.1 paf 1601: case LS_METHOD_AFTER:
1.69 paf 1602: if(c=='[') {/* ][ }[ )[ */
1.206 paf 1603: pc.ls=LS_METHOD_SQUARE;
1.1 paf 1604: lexical_brackets_nestage=1;
1.48 paf 1605: RC;
1.1 paf 1606: }
1.69 paf 1607: if(c=='{') {/* ]{ }{ ){ */
1.206 paf 1608: pc.ls=LS_METHOD_CURLY;
1.69 paf 1609: lexical_brackets_nestage=1;
1610: RC;
1611: }
1612: if(c=='(') {/* ]( }( )( */
1.206 paf 1613: pc.ls=LS_METHOD_ROUND;
1.1 paf 1614: lexical_brackets_nestage=1;
1.48 paf 1615: RC;
1.1 paf 1616: }
1.206 paf 1617: pop_LS(pc);
1618: pc.ungetc();
1.13 paf 1619: result=EON;
1.1 paf 1620: goto break2;
1621: }
1.9 paf 1622: if(c==0) {
1.1 paf 1623: result=-1;
1624: break;
1625: }
1626: }
1627:
1628: break2:
1.59 paf 1629: if(end!=begin) { // there is last piece?
1.258 misha 1630: if(c=='@' || c==0) // we are before LS_DEF_NAME or EOF?
1631: while(end!=begin && end[-1]=='\n') // trim all empty lines before LS_DEF_NAME and EOF
1.137 parser 1632: end--;
1.206 paf 1633: if(end!=begin && pc.ls!=LS_USER_COMMENT) { // last piece still alive and not comment?
1634: if(!pc.string_start)
1635: pc.string_start=begin_pos;
1.59 paf 1636: // append it
1.206 paf 1637: pc.string.append_strdup_know_length(begin, end-begin);
1.30 paf 1638: }
1.59 paf 1639: }
1.206 paf 1640: if(!pc.string.is_empty()) { // something accumulated?
1641: // create STRING value: array of OP_VALUE+origin+vstring
1.278 moko 1642: #ifdef SYMBOLS_CACHING
1643: Value *lookup=symbols->get(pc.string);
1644: #else
1645: Value *lookup=0;
1646: #endif
1.206 paf 1647: *lvalp=VL(
1.279 ! moko 1648: lookup ? lookup : new VString(*new String(pc.string, String::L_CLEAN)), pc.file_no, pc.string_start.line, pc.string_start.col);
1.10 paf 1649: // new pieces storage
1.206 paf 1650: pc.string.clear();
1651: pc.string_start.clear();
1.58 paf 1652: // make current result be pending for next call, return STRING for now
1.206 paf 1653: pc.pending_state=result; result=STRING;
1.58 paf 1654: }
1.67 paf 1655: if(skip_analized) {
1.206 paf 1656: pc.source+=skip_analized; pc.pos.col+=skip_analized;
1.1 paf 1657: }
1.58 paf 1658: return result;
1.1 paf 1659: }
1660:
1.264 moko 1661: static int real_yyerror(Parse_control *pc, const char *s) { // Called by yyparse on error
1.114 paf 1662: strncpy(PC.error, s, MAX_STRING);
1.1 paf 1663: return 1;
1.110 paf 1664: }
1.1 paf 1665:
1.110 paf 1666: static void yyprint(FILE *file, int type, YYSTYPE value) {
1667: if(type==STRING)
1.206 paf 1668: fprintf(file, " \"%s\"", LA2S(*value)->cstr());
1.110 paf 1669: }
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