Annotation of parser3/src/main/compile.y, revision 1.201
1.168 parser 1: %{
1.105 paf 2: /** @file
1.106 paf 3: Parser: compiler(lexical parser and grammar).
4:
1.87 paf 5: Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com)
1.168 parser 6: Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf)
1.106 paf 7:
1.200 paf 8: $Id: compile.y,v 1.199 2002/10/15 08:31:56 paf 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:
1.90 paf 22: #define YYSTYPE Array/*<Operation>*/ *
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
1.9 paf 27: #define yyerror(msg) real_yyerror((parse_control *)pc, msg)
28: #define YYPRINT(file, type, value) yyprint(file, type, value)
1.1 paf 29:
30: #include "compile_tools.h"
1.8 paf 31: #include "pa_value.h"
1.12 paf 32: #include "pa_request.h"
1.39 paf 33: #include "pa_vobject.h"
1.52 paf 34: #include "pa_vdouble.h"
1.98 paf 35: #include "pa_globals.h"
1.141 parser 36: #include "pa_vvoid.h"
1.200 paf 37: #include "pa_vmethod_frame.h"
1.39 paf 38:
1.97 paf 39: #define USE_CONTROL_METHOD_NAME "USE"
1.1 paf 40:
1.125 paf 41: static int real_yyerror(parse_control *pc, char *s);
1.9 paf 42: static void yyprint(FILE *file, int type, YYSTYPE value);
1.125 paf 43: static int yylex(YYSTYPE *lvalp, void *pc);
1.1 paf 44:
45:
1.8 paf 46: // local convinient inplace typecast & var
1.114 paf 47: #define PC (*(parse_control *)pc)
48: #define POOL (*PC.pool)
1.25 paf 49: #undef NEW
50: #define NEW new(POOL)
1.107 paf 51: #ifndef DOXYGEN
1.1 paf 52: %}
53:
54: %pure_parser
55:
1.13 paf 56: %token EON
1.4 paf 57: %token STRING
1.1 paf 58: %token BOGUS
1.55 paf 59:
1.58 paf 60: %token BAD_STRING_COMPARISON_OPERATOR
1.114 paf 61: %token BAD_HEX_LITERAL
1.171 parser 62: %token BAD_METHOD_DECL_START
1.193 paf 63: %token BAD_METHOD_PARAMETER_NAME_CHARACTER
64: %token BAD_MATH_OPERATOR_CHARACTER
1.58 paf 65:
1.59 paf 66: %token LAND "&&"
1.58 paf 67: %token LOR "||"
1.193 paf 68: %token LXOR "!||"
69: %token NXOR "!|"
1.58 paf 70:
71: %token NLE "<="
72: %token NGE ">="
73: %token NEQ "=="
74: %token NNE "!="
1.195 paf 75: %token NSL "<<"
76: %token NSR ">>"
1.58 paf 77:
78: %token SLT "lt"
79: %token SGT "gt"
80: %token SLE "le"
81: %token SGE "ge"
82: %token SEQ "eq"
83: %token SNE "ne"
84:
1.67 paf 85: %token DEF "def"
86: %token IN "in"
87: %token FEXISTS "-f"
1.127 paf 88: %token DEXISTS "-d"
1.95 paf 89: %token IS "is"
1.67 paf 90:
1.57 paf 91: /* logical */
1.193 paf 92: %left "!||"
1.57 paf 93: %left "||"
94: %left "&&"
1.131 paf 95: %left '<' '>' "<=" ">=" "lt" "gt" "le" "ge"
96: %left "==" "!=" "eq" "ne"
97: %left "is" "def" "in" "-f" "-d"
1.68 paf 98: %left '!'
1.57 paf 99:
100: /* bitwise */
1.193 paf 101: %left "!|"
1.131 paf 102: %left '|'
103: %left '&'
1.68 paf 104: %left '~'
1.195 paf 105: %left ">>"
106: %left "<<"
1.57 paf 107:
1.56 paf 108: /* numerical */
1.55 paf 109: %left '-' '+'
1.173 paf 110: %left '*' '/' '%' '\\'
1.56 paf 111: %left NEG /* negation: unary - */
1.1 paf 112:
113: %%
1.195 paf 114: all:
1.10 paf 115: one_big_piece {
1.75 paf 116: Method& method=*NEW Method(POOL,
1.187 paf 117: PC.request->main_method_name,
1.122 paf 118: Method::CT_ANY,
1.81 paf 119: 0, 0, /*min, max numbered_params_count*/
1.75 paf 120: 0/*param_names*/, 0/*local_names*/,
121: $1/*parser_code*/, 0/*native_code*/);
1.187 paf 122: PC.cclass->add_method(PC.request->main_method_name, method);
1.10 paf 123: }
124: | methods;
125:
126: methods: method | methods method;
127: one_big_piece: maybe_codes;
128:
1.34 paf 129: method: control_method | code_method;
130:
131: control_method: '@' STRING '\n'
1.132 paf 132: maybe_control_strings {
1.120 paf 133: const String& command=*LA2S($2);
1.34 paf 134: YYSTYPE strings_code=$4;
1.37 paf 135: if(strings_code->size()<1*2) {
1.114 paf 136: strcpy(PC.error, "@");
137: strcat(PC.error, command.cstr());
138: strcat(PC.error, " is empty");
1.37 paf 139: YYERROR;
140: }
1.74 paf 141: if(command==CLASS_NAME) {
1.188 paf 142: if(PC.cclass->base_class()) { // already changed from default?
1.114 paf 143: strcpy(PC.error, "class already have a name '");
144: strncat(PC.error, PC.cclass->name().cstr(), 100);
145: strcat(PC.error, "'");
1.73 paf 146: YYERROR;
147: }
148: if(strings_code->size()==1*2) {
149: // new class' name
1.120 paf 150: const String *name=LA2S(strings_code);
1.73 paf 151: // creating the class
1.114 paf 152: PC.cclass=NEW VClass(POOL);
153: PC.cclass->set_name(*name);
1.73 paf 154: // append to request's classes
1.114 paf 155: PC.request->classes().put(*name, PC.cclass);
1.73 paf 156: } else {
1.114 paf 157: strcpy(PC.error, "@"CLASS_NAME" must contain sole name");
1.34 paf 158: YYERROR;
159: }
1.130 paf 160: } else if(command==USE_CONTROL_METHOD_NAME) {
161: for(int i=0; i<strings_code->size(); i+=2)
1.198 paf 162: PC.request->use_file(PC.request->main_class, *LA2S(strings_code, i));
1.130 paf 163: } else if(command==BASE_NAME) {
1.188 paf 164: if(PC.cclass->base_class()) { // already changed from default?
1.130 paf 165: strcpy(PC.error, "class already have a base '");
1.188 paf 166: strncat(PC.error, PC.cclass->base_class()->name().cstr(), 100);
1.130 paf 167: strcat(PC.error, "'");
168: YYERROR;
169: }
170: if(strings_code->size()==1*2) {
171: const String& base_name=*LA2S(strings_code);
1.189 paf 172: Value *vbase_class=static_cast<VClass *>(
1.130 paf 173: PC.request->classes().get(base_name));
1.189 paf 174: VStateless_class *base_class=vbase_class?vbase_class->get_class():0;
175: if(!base_class) {
1.130 paf 176: strcpy(PC.error, base_name.cstr());
177: strcat(PC.error, ": undefined class in @"BASE_NAME);
1.73 paf 178: YYERROR;
179: }
1.130 paf 180: // @CLASS == @BASE sanity check
1.189 paf 181: if(PC.cclass==base_class) {
1.130 paf 182: strcpy(PC.error, "@"CLASS_NAME" equals @"BASE_NAME);
1.45 paf 183: YYERROR;
1.34 paf 184: }
1.189 paf 185: PC.cclass->set_base(base_class);
1.34 paf 186: } else {
1.130 paf 187: strcpy(PC.error, "@"BASE_NAME" must contain sole name");
1.34 paf 188: YYERROR;
189: }
1.130 paf 190: } else {
191: strcpy(PC.error, "'");
192: strncat(PC.error, command.cstr(), MAX_STRING/2);
193: strcat(PC.error, "' invalid special name. valid names are "
194: "'"CLASS_NAME"', '"USE_CONTROL_METHOD_NAME"' and '"BASE_NAME"'");
195: YYERROR;
1.34 paf 196: }
197: };
1.132 paf 198: maybe_control_strings: empty | control_strings;
1.37 paf 199: control_strings: control_string | control_strings control_string { $$=$1; P($$, $2) };
200: control_string: maybe_string '\n';
201: maybe_string: empty | STRING;
1.34 paf 202:
203: code_method: '@' STRING bracketed_maybe_strings maybe_bracketed_strings maybe_comment '\n'
1.10 paf 204: maybe_codes {
1.120 paf 205: const String *name=LA2S($2);
1.10 paf 206:
207: YYSTYPE params_names_code=$3;
1.75 paf 208: Array *params_names=0;
209: if(int size=params_names_code->size()) {
210: params_names=NEW Array(POOL);
211: for(int i=0; i<size; i+=2)
1.120 paf 212: *params_names+=LA2S(params_names_code, i);
1.75 paf 213: }
1.10 paf 214:
215: YYSTYPE locals_names_code=$4;
1.75 paf 216: Array *locals_names=0;
217: if(int size=locals_names_code->size()) {
218: locals_names=NEW Array(POOL);
219: for(int i=0; i<size; i+=2)
1.120 paf 220: *locals_names+=LA2S(locals_names_code, i);
1.75 paf 221: }
1.10 paf 222:
1.76 paf 223: Method& method=*NEW Method(POOL,
224: *name,
1.122 paf 225: Method::CT_ANY,
1.81 paf 226: 0, 0/*min,max numbered_params_count*/,
1.76 paf 227: params_names, locals_names,
228: $7, 0);
1.114 paf 229: PC.cclass->add_method(*name, method);
1.8 paf 230: };
1.10 paf 231:
232: maybe_bracketed_strings: empty | bracketed_maybe_strings;
233: bracketed_maybe_strings: '[' maybe_strings ']' {$$=$2};
234: maybe_strings: empty | strings;
235: strings: STRING | strings ';' STRING { $$=$1; P($$, $3) };
236:
237: maybe_comment: empty | STRING;
1.1 paf 238:
239: /* codes */
240:
1.10 paf 241: maybe_codes: empty | codes;
242:
1.90 paf 243: codes: code | codes code { $$=$1; P($$, $2) };
1.81 paf 244: code: write_string | action;
1.149 parser 245: action: get | put | call;
1.1 paf 246:
247: /* get */
248:
1.64 paf 249: get: get_value {
1.184 paf 250: $$=$1; /* stack: resulting value */
251: changetail_or_append($$,
1.186 paf 252: OP_GET_ELEMENT, false, /*->*/OP_GET_ELEMENT__WRITE,
253: /*or */OP_WRITE_VALUE
1.184 paf 254: ); /* value=pop; wcontext.write(value) */
1.1 paf 255: };
1.163 parser 256: get_value: '$' get_name_value { $$=$2 };
1.64 paf 257: get_name_value: name_without_curly_rdive EON | name_in_curly_rdive;
1.1 paf 258: name_in_curly_rdive: '{' name_without_curly_rdive '}' { $$=$2 };
1.44 paf 259: name_without_curly_rdive:
260: name_without_curly_rdive_read
261: | name_without_curly_rdive_class;
1.19 paf 262: name_without_curly_rdive_read: name_without_curly_rdive_code {
1.25 paf 263: $$=N(POOL);
1.22 paf 264: Array *diving_code=$1;
1.120 paf 265: const String *first_name=LA2S(diving_code);
1.179 paf 266: // self.xxx... -> xxx...
267: // OP_VALUE+string+OP_GET_ELEMENT+... -> OP_WITH_SELF+...
1.85 paf 268: if(first_name && *first_name==SELF_ELEMENT_NAME) {
1.54 paf 269: O($$, OP_WITH_SELF); /* stack: starting context */
1.22 paf 270: P($$, diving_code,
271: /* skip over... */
1.179 paf 272: diving_code->size()>=3?3/*OP_VALUE+string+OP_GET_ELEMENTx*/:2/*OP_+string*/);
1.22 paf 273: } else {
1.54 paf 274: O($$, OP_WITH_READ); /* stack: starting context */
1.179 paf 275:
1.201 ! paf 276: // ^if ELEMENT -> ^if ELEMENT_OR_OPERATOR
! 277: // OP_VALUE+string+OP_GET_ELEMENT. -> OP_VALUE+string+OP_GET_ELEMENT_OR_OPERATOR.
! 278: if(PC.in_call_value && diving_code->size()==3)
! 279: diving_code->put_int(2, OP_GET_ELEMENT_OR_OPERATOR);
1.22 paf 280: P($$, diving_code);
281: }
282: /* diving code; stack: current context */
1.1 paf 283: };
1.155 parser 284: name_without_curly_rdive_class: class_prefix name_without_curly_rdive_code { $$=$1; P($$, $2) };
1.19 paf 285: name_without_curly_rdive_code: name_advance2 | name_path name_advance2 { $$=$1; P($$, $2) };
1.1 paf 286:
287: /* put */
288:
1.81 paf 289: put: '$' name_expr_wdive construct {
1.20 paf 290: $$=$2; /* stack: context,name */
1.52 paf 291: P($$, $3); /* stack: context,name,constructor_value */
1.20 paf 292: };
1.44 paf 293: name_expr_wdive:
1.157 parser 294: name_expr_wdive_root
295: | name_expr_wdive_write
1.44 paf 296: | name_expr_wdive_class;
1.157 parser 297: name_expr_wdive_root: name_expr_dive_code {
1.44 paf 298: $$=N(POOL);
1.23 paf 299: Array *diving_code=$1;
1.120 paf 300: const String *first_name=LA2S(diving_code);
1.179 paf 301: // $self.xxx... -> $xxx...
302: // OP_VALUE+string+OP_GET_ELEMENT+... -> OP_WITH_SELF+...
1.85 paf 303: if(first_name && *first_name==SELF_ELEMENT_NAME) {
1.54 paf 304: O($$, OP_WITH_SELF); /* stack: starting context */
1.23 paf 305: P($$, diving_code,
306: /* skip over... */
1.179 paf 307: diving_code->size()>=3?3/*OP_VALUE+string+OP_GET_ELEMENTx*/:2/*OP_+string*/);
1.23 paf 308: } else {
1.157 parser 309: O($$, OP_WITH_ROOT); /* stack: starting context */
1.23 paf 310: P($$, diving_code);
311: }
312: /* diving code; stack: current context */
1.156 parser 313: };
1.157 parser 314: name_expr_wdive_write: '.' name_expr_dive_code {
1.156 parser 315: $$=N(POOL);
1.157 parser 316: O($$, OP_WITH_WRITE); /* stack: starting context */
1.156 parser 317: P($$, $2); /* diving code; stack: context,name */
1.20 paf 318: };
1.155 parser 319: name_expr_wdive_class: class_prefix name_expr_dive_code { $$=$1; P($$, $2) };
1.20 paf 320:
1.149 parser 321: construct:
1.163 parser 322: construct_square
323: | construct_round
324: | construct_curly
1.149 parser 325: ;
326: construct_square: '[' any_constructor_code_value ']' {
327: // stack: context, name
328: $$=$2; // stack: context, name, value
1.81 paf 329: O($$, OP_CONSTRUCT_VALUE); /* value=pop; name=pop; context=pop; construct(context,name,value) */
330: }
331: ;
1.149 parser 332: construct_round: '(' expr_value ')' {
1.182 paf 333: $$=N(POOL);
334: O($$, OP_PREPARE_TO_EXPRESSION);
1.149 parser 335: // stack: context, name
1.182 paf 336: P($$, $2); // stack: context, name, value
1.163 parser 337: O($$, OP_CONSTRUCT_EXPR); /* value=pop->as_expr_result; name=pop; context=pop; construct(context,name,value) */
1.81 paf 338: }
1.52 paf 339: ;
1.149 parser 340: construct_curly: '{' maybe_codes '}' {
341: // stack: context, name
342: $$=N(POOL);
1.186 paf 343: OA($$, OP_CURLY_CODE__CONSTRUCT, $2); /* code=pop; name=pop; context=pop; construct(context,name,junction(code)) */
1.149 parser 344: };
345:
1.55 paf 346: any_constructor_code_value:
1.157 parser 347: void_value /* optimized $var[] case */
1.52 paf 348: | STRING /* optimized $var[STRING] case */
1.55 paf 349: | constructor_code_value /* $var[something complex] */
1.1 paf 350: ;
1.55 paf 351: constructor_code_value: constructor_code {
1.25 paf 352: $$=N(POOL);
1.186 paf 353: OA($$, OP_OBJECT_POOL, $1); /* stack: empty write context */
1.183 paf 354: /* some code that writes to that context */
355: /* context=pop; stack: context.value() */
1.1 paf 356: };
1.55 paf 357: constructor_code: codes__excluding_sole_str_literal;
1.27 paf 358: codes__excluding_sole_str_literal: action | code codes { $$=$1; P($$, $2) };
359:
1.1 paf 360: /* call */
361:
1.66 paf 362: call: call_value {
363: $$=$1; /* stack: value */
1.185 paf 364: changetail_or_append($$,
1.186 paf 365: OP_CALL, true, /*->*/ OP_CALL__WRITE,
366: /*or */OP_WRITE_VALUE); /* value=pop; wcontext.write(value) */
1.66 paf 367: };
1.177 paf 368: call_value: '^' {
1.180 paf 369: PC.in_call_value=true;
1.177 paf 370: }
371: call_name {
1.180 paf 372: PC.in_call_value=false;
1.177 paf 373: }
1.154 parser 374: store_params EON { /* ^field.$method{vasya} */
375: $$=$3; /* with_xxx,diving code; stack: context,method_junction */
1.123 paf 376:
1.154 parser 377: YYSTYPE params_code=$5;
1.186 paf 378: if(params_code->size()==3) { // probably [] case. [OP_VALUE + Void + STORE_PARAM]
1.123 paf 379: if(Value *value=LA2V(params_code)) // it is OP_VALUE + value?
1.140 parser 380: if(!value->is_defined()) // value is VVoid?
1.123 paf 381: params_code=0; // ^zzz[] case. don't append lone empty param.
1.186 paf 382: }
383: /* stack: context, method_junction */
384: OA($$, OP_CALL, params_code); // method_frame=make frame(pop junction); ncontext=pop; call(ncontext,method_frame) stack: value
1.1 paf 385: };
386:
1.43 paf 387: call_name: name_without_curly_rdive;
1.38 paf 388:
1.9 paf 389: store_params: store_param | store_params store_param { $$=$1; P($$, $2) };
1.69 paf 390: store_param:
391: store_square_param
392: | store_round_param
393: | store_curly_param
1.31 paf 394: ;
1.123 paf 395: store_square_param: '[' store_code_param_parts ']' {$$=$2};
1.69 paf 396: store_round_param: '(' store_expr_param_parts ')' {$$=$2};
1.94 paf 397: store_curly_param: '{' store_curly_param_parts '}' {$$=$2};
1.69 paf 398: store_code_param_parts:
399: store_code_param_part
400: | store_code_param_parts ';' store_code_param_part { $$=$1; P($$, $3) }
401: ;
402: store_expr_param_parts:
403: store_expr_param_part
404: | store_expr_param_parts ';' store_expr_param_part { $$=$1; P($$, $3) }
405: ;
1.94 paf 406: store_curly_param_parts:
407: store_curly_param_part
408: | store_curly_param_parts ';' store_curly_param_part { $$=$1; P($$, $3) }
409: ;
1.120 paf 410: store_code_param_part: code_param_value {
1.32 paf 411: $$=$1;
1.54 paf 412: O($$, OP_STORE_PARAM);
1.120 paf 413: };
1.69 paf 414: store_expr_param_part: write_expr_value {
415: $$=N(POOL);
1.186 paf 416: OA($$, OP_EXPR_CODE__STORE_PARAM, $1);
1.69 paf 417: };
1.94 paf 418: store_curly_param_part: maybe_codes {
419: $$=N(POOL);
1.186 paf 420: OA($$, OP_CURLY_CODE__STORE_PARAM, $1);
1.94 paf 421: };
1.120 paf 422: code_param_value:
1.157 parser 423: void_value /* optimized [;...] case */
1.120 paf 424: | STRING /* optimized [STRING] case */
425: | constructor_code_value /* [something complex] */
426: ;
1.90 paf 427: write_expr_value: expr_value {
1.182 paf 428: $$=N(POOL);
429: O($$, OP_PREPARE_TO_EXPRESSION);
430: P($$, $1);
1.102 paf 431: O($$, OP_WRITE_EXPR_RESULT);
1.69 paf 432: };
1.1 paf 433:
434: /* name */
435:
1.20 paf 436: name_expr_dive_code: name_expr_value | name_path name_expr_value { $$=$1; P($$, $2) };
1.1 paf 437:
1.9 paf 438: name_path: name_step | name_path name_step { $$=$1; P($$, $2) };
1.1 paf 439: name_step: name_advance1 '.';
440: name_advance1: name_expr_value {
1.177 paf 441: // we know that name_advance1 not called from ^xxx context
442: // so we'll not check for operator call possibility as we do in name_advance2
443:
1.1 paf 444: /* stack: context */
445: $$=$1; /* stack: context,name */
1.54 paf 446: O($$, OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */
1.1 paf 447: };
448: name_advance2: name_expr_value {
449: /* stack: context */
450: $$=$1; /* stack: context,name */
1.179 paf 451: O($$, OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */
1.1 paf 452: }
1.4 paf 453: | STRING BOGUS
1.1 paf 454: ;
455: name_expr_value:
1.4 paf 456: STRING /* subname_is_const */
1.1 paf 457: | name_expr_subvar_value /* $subname_is_var_value */
1.160 parser 458: | name_expr_with_subvar_value /* xxx$part_of_subname_is_var_value */
1.166 parser 459: | name_square_code_value /* [codes] */
1.1 paf 460: ;
461: name_expr_subvar_value: '$' subvar_ref_name_rdive {
462: $$=$2;
1.54 paf 463: O($$, OP_GET_ELEMENT);
1.1 paf 464: };
1.4 paf 465: name_expr_with_subvar_value: STRING subvar_get_writes {
1.183 paf 466: Array *code;
467: {
468: change_string_literal_to_write_string_literal(code=$1);
469: P(code, $2);
470: }
1.25 paf 471: $$=N(POOL);
1.186 paf 472: OA($$, OP_STRING_POOL, code);
1.1 paf 473: };
1.166 parser 474: name_square_code_value: '[' codes ']' {
1.160 parser 475: $$=N(POOL);
1.186 paf 476: OA($$, OP_OBJECT_POOL, $2); /* stack: empty write context */
1.183 paf 477: /* some code that writes to that context */
478: /* context=pop; stack: context.value() */
1.160 parser 479: };
1.154 parser 480: subvar_ref_name_rdive: STRING {
1.25 paf 481: $$=N(POOL);
1.54 paf 482: O($$, OP_WITH_READ);
1.9 paf 483: P($$, $1);
1.1 paf 484: };
1.9 paf 485: subvar_get_writes: subvar__get_write | subvar_get_writes subvar__get_write { $$=$1; P($$, $2) };
1.1 paf 486: subvar__get_write: '$' subvar_ref_name_rdive {
487: $$=$2;
1.54 paf 488: O($$, OP_GET_ELEMENT__WRITE);
1.42 paf 489: };
490:
1.154 parser 491: class_prefix:
492: class_static_prefix
493: | class_constructor_prefix
494: ;
1.155 parser 495: class_static_prefix: STRING ':' {
496: $$=$1; // stack: class name string
1.189 paf 497: if(*LA2S($$) == BASE_NAME) { // pseude BASE class
498: if(VStateless_class *base=PC.cclass->base_class()) {
499: change_string_literal_value($$, base->name());
500: } else {
501: strcpy(PC.error, "no base class declared");
502: YYERROR;
503: }
504: }
1.155 parser 505: O($$, OP_GET_CLASS);
506: };
507: class_constructor_prefix: class_static_prefix ':' {
1.154 parser 508: $$=$1;
1.180 paf 509: if(!PC.in_call_value) {
1.154 parser 510: strcpy(PC.error, ":: not allowed here");
511: YYERROR;
512: }
1.155 parser 513: O($$, OP_PREPARE_TO_CONSTRUCT_OBJECT);
1.1 paf 514: };
515:
1.53 paf 516:
1.56 paf 517: /* expr */
1.53 paf 518:
1.81 paf 519: expr_value: expr {
1.182 paf 520: // see OP_PREPARE_TO_EXPRESSION!!
1.81 paf 521: if(($$=$1)->size()==2) // only one string literal in there?
1.62 paf 522: change_string_literal_to_double_literal($$); // make that string literal Double
523: };
1.56 paf 524: expr:
1.62 paf 525: STRING
1.64 paf 526: | get_value
1.66 paf 527: | call_value
1.64 paf 528: | '"' string_inside_quotes_value '"' { $$ = $2; }
1.145 parser 529: | '\'' string_inside_quotes_value '\'' { $$ = $2; }
1.60 paf 530: | '(' expr ')' { $$ = $2; }
531: /* stack: operand // stack: @operand */
532: | '-' expr %prec NEG { $$=$2; O($$, OP_NEG) }
1.166 parser 533: | '+' expr %prec NEG { $$=$2 }
1.68 paf 534: | '~' expr { $$=$2; O($$, OP_INV) }
535: | '!' expr { $$=$2; O($$, OP_NOT) }
536: | "def" expr { $$=$2; O($$, OP_DEF) }
537: | "in" expr { $$=$2; O($$, OP_IN) }
538: | "-f" expr { $$=$2; O($$, OP_FEXISTS) }
1.127 paf 539: | "-d" expr { $$=$2; O($$, OP_DEXISTS) }
1.60 paf 540: /* stack: a,b // stack: a@b */
541: | expr '-' expr { $$=$1; P($$, $3); O($$, OP_SUB) }
542: | expr '+' expr { $$=$1; P($$, $3); O($$, OP_ADD) }
543: | expr '*' expr { $$=$1; P($$, $3); O($$, OP_MUL) }
544: | expr '/' expr { $$=$1; P($$, $3); O($$, OP_DIV) }
545: | expr '%' expr { $$=$1; P($$, $3); O($$, OP_MOD) }
1.173 paf 546: | expr '\\' expr { $$=$1; P($$, $3); O($$, OP_INTDIV) }
1.195 paf 547: | expr "<<" expr { $$=$1; P($$, $3); O($$, OP_BIN_SL) }
548: | expr ">>" expr { $$=$1; P($$, $3); O($$, OP_BIN_SR) }
1.60 paf 549: | expr '&' expr { $$=$1; P($$, $3); O($$, OP_BIN_AND) }
550: | expr '|' expr { $$=$1; P($$, $3); O($$, OP_BIN_OR) }
1.193 paf 551: | expr "!|" expr { $$=$1; P($$, $3); O($$, OP_BIN_XOR) }
1.186 paf 552: | expr "&&" expr { $$=$1; OA($$, OP_NESTED_CODE, $3); O($$, OP_LOG_AND) }
553: | expr "||" expr { $$=$1; OA($$, OP_NESTED_CODE, $3); O($$, OP_LOG_OR) }
1.193 paf 554: | expr "!||" expr { $$=$1; P($$, $3); O($$, OP_LOG_XOR) }
1.60 paf 555: | expr '<' expr { $$=$1; P($$, $3); O($$, OP_NUM_LT) }
556: | expr '>' expr { $$=$1; P($$, $3); O($$, OP_NUM_GT) }
557: | expr "<=" expr { $$=$1; P($$, $3); O($$, OP_NUM_LE) }
558: | expr ">=" expr { $$=$1; P($$, $3); O($$, OP_NUM_GE) }
559: | expr "==" expr { $$=$1; P($$, $3); O($$, OP_NUM_EQ) }
560: | expr "!=" expr { $$=$1; P($$, $3); O($$, OP_NUM_NE) }
1.61 paf 561: | expr "lt" expr { $$=$1; P($$, $3); O($$, OP_STR_LT) }
562: | expr "gt" expr { $$=$1; P($$, $3); O($$, OP_STR_GT) }
563: | expr "le" expr { $$=$1; P($$, $3); O($$, OP_STR_LE) }
564: | expr "ge" expr { $$=$1; P($$, $3); O($$, OP_STR_GE) }
565: | expr "eq" expr { $$=$1; P($$, $3); O($$, OP_STR_EQ) }
566: | expr "ne" expr { $$=$1; P($$, $3); O($$, OP_STR_NE) }
1.95 paf 567: | expr "is" expr { $$=$1; P($$, $3); O($$, OP_IS) }
1.56 paf 568: ;
1.55 paf 569:
1.65 paf 570: string_inside_quotes_value: maybe_codes {
1.64 paf 571: $$=N(POOL);
1.186 paf 572: OA($$, OP_STRING_POOL, $1); /* stack: empty write context */
1.183 paf 573: /* some code that writes to that context */
574: /* context=pop; stack: context.get_string() */
1.53 paf 575: };
1.1 paf 576:
1.27 paf 577: /* basics */
1.1 paf 578:
1.81 paf 579: write_string: STRING {
1.102 paf 580: // optimized from OP_STRING+OP_WRITE_VALUE to OP_STRING__WRITE
1.84 paf 581: change_string_literal_to_write_string_literal($$=$1)
1.54 paf 582: };
583:
1.157 parser 584: void_value: /* empty */ { $$=VL(NEW VVoid(POOL)) };
1.25 paf 585: empty: /* empty */ { $$=N(POOL) };
1.1 paf 586:
587: %%
1.105 paf 588: #endif
1.1 paf 589:
590: /*
591: 000$111(2222)00
592: 000$111{3333}00
1.9 paf 593: $,^: push,=0
1.1 paf 594: 1:( { break=pop
595: 2:( ) pop
596: 3:{ } pop
597:
598: 000^111(2222)4444{33333}4000
1.9 paf 599: $,^: push,=0
1.1 paf 600: 1:( { break=pop
601: 2:( )=4
602: 3:{ }=4
603: 4:[^({]=pop
604: */
605:
1.110 paf 606: static int yylex(YYSTYPE *lvalp, void *pc) {
1.177 paf 607: #define lexical_brackets_nestage PC.brackets_nestages[PC.ls_sp]
1.48 paf 608: #define RC {result=c; goto break2; }
1.1 paf 609:
610: register int c;
611: int result;
612:
1.114 paf 613: if(PC.pending_state) {
614: result=PC.pending_state;
615: PC.pending_state=0;
1.1 paf 616: return result;
617: }
618:
1.114 paf 619: const char *begin=PC.source;
1.91 paf 620: const char *end;
1.114 paf 621: int begin_line=PC.line;
1.67 paf 622: int skip_analized=0;
1.50 paf 623: while(true) {
1.114 paf 624: c=*(end=(PC.source++));
1.166 parser 625: // fprintf(stderr, "\nchar: %c %02X; nestage: %d, sp=%d", c, c, lexical_brackets_nestage, PC.sp);
1.1 paf 626:
1.4 paf 627: if(c=='\n') {
1.114 paf 628: PC.line++;
629: PC.col=0;
1.10 paf 630: } else
1.114 paf 631: PC.col++;
1.73 paf 632:
1.171 parser 633: if(c=='@' && PC.col==0+1) {
1.175 paf 634: if(PC.ls==LS_DEF_SPECIAL_BODY) {
635: // @SPECIAL
636: // ...
637: // @<here =
638: pop_LS(PC); // exiting from LS_DEF_SPECIAL_BODY state
639: } // continuing checks
1.171 parser 640: if(PC.ls==LS_USER) {
641: push_LS(PC, LS_DEF_NAME);
642: RC;
1.175 paf 643: } else // @ in first column inside some code [when could that be?]
1.171 parser 644: result=BAD_METHOD_DECL_START;
645: goto break2;
646: } else if(c=='^')
1.169 parser 647: switch(PC.ls) {
648: case LS_EXPRESSION_VAR_NAME_WITH_COLON:
649: case LS_EXPRESSION_VAR_NAME_WITHOUT_COLON:
650: case LS_VAR_NAME_SIMPLE_WITH_COLON:
651: case LS_VAR_NAME_SIMPLE_WITHOUT_COLON:
652: case LS_VAR_NAME_CURLY:
653: case LS_METHOD_NAME:
1.194 paf 654: case LS_USER_COMMENT:
1.169 parser 655: case LS_DEF_COMMENT:
656: // no literals in names, please
657: break;
658: default:
1.114 paf 659: switch(*PC.source) {
1.165 parser 660: // ^escaping some punctuators
1.48 paf 661: case '^': case '$': case ';':
1.126 paf 662: case '(': case ')':
1.48 paf 663: case '[': case ']':
664: case '{': case '}':
1.172 parser 665: case '"': case ':':
1.40 paf 666: if(end!=begin) {
667: // append piece till ^
1.121 paf 668: PC.string->APPEND_CLEAN(begin, end-begin, PC.file, begin_line);
1.40 paf 669: }
1.63 paf 670: // reset piece 'begin' position & line
1.164 parser 671: end=begin=PC.source; // ^
1.114 paf 672: begin_line=PC.line;
1.164 parser 673: if(PC.ls==LS_METHOD_AFTER) {
674: pop_LS(PC);
675: result=EON;
1.165 parser 676: skip_analized=-1; // return to ^ afterwards to assure it's literality
1.164 parser 677: goto break2;
678: } else {
679: // skip over _ after ^
680: PC.source++; PC.col++;
681: // skip analysis = forced literal
682: continue;
683: }
1.114 paf 684:
685: // converting ^#HH into char(hex(HH))
686: case '#':
687: if(end!=begin) {
688: // append piece till ^
1.121 paf 689: PC.string->APPEND_CLEAN(begin, end-begin, PC.file, begin_line);
1.114 paf 690: }
691: // #HH ?
692: if(PC.source[0]=='#' && PC.source[1] && PC.source[2]) {
693: char *hex=(char *)POOL.malloc(1);
694: hex[0]=
695: hex_value[(unsigned char)PC.source[1]]*0x10+
696: hex_value[(unsigned char)PC.source[2]];
697: if(hex[0]==0) {
698: result=BAD_HEX_LITERAL;
699: goto break2; // wrong hex value[no ^#00 chars allowed]: bail out
700: }
701: // append char(hex(HH))
1.121 paf 702: PC.string->APPEND_CLEAN(hex, 1, PC.file, begin_line);
1.114 paf 703: // skip over ^#HH
704: PC.source+=3;
705: PC.col+=3;
706: // reset piece 'begin' position & line
707: begin=PC.source; // ^
708: begin_line=PC.line;
709: continue;
710: }
711: break;
1.1 paf 712: }
1.169 parser 713: break;
714: }
1.113 paf 715: // #comment start skipping
1.114 paf 716: if(c=='#' && PC.col==1) {
1.112 paf 717: if(end!=begin) {
718: // append piece till #
1.121 paf 719: PC.string->APPEND_CLEAN(begin, end-begin, PC.file, begin_line);
1.112 paf 720: }
721: // fall into COMMENT lexical state [wait for \n]
1.194 paf 722: push_LS(PC, LS_USER_COMMENT);
1.175 paf 723: continue;
1.112 paf 724: }
1.114 paf 725: switch(PC.ls) {
1.10 paf 726:
727: // USER'S = NOT OURS
1.1 paf 728: case LS_USER:
1.166 parser 729: case LS_NAME_SQUARE_PART: // name.[here].xxx
1.153 parser 730: if(PC.trim_bof)
731: switch(c) {
732: case '\n': case ' ': case '\t':
1.152 parser 733: begin=PC.source;
734: begin_line=PC.line;
735: continue; // skip it
1.153 parser 736: default:
737: PC.trim_bof=false;
1.152 parser 738: }
1.48 paf 739: switch(c) {
740: case '$':
1.166 parser 741: push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 742: RC;
743: case '^':
744: push_LS(PC, LS_METHOD_NAME);
745: RC;
1.166 parser 746: case ']':
747: if(PC.ls==LS_NAME_SQUARE_PART)
748: if(--lexical_brackets_nestage==0) {// $name.[co<]?>de<]?>
749: pop_LS(PC); // $name.[co<]>de<]!>
750: RC;
751: }
1.160 parser 752: break;
1.166 parser 753: case '[': // $name.[co<[>de]
754: if(PC.ls==LS_NAME_SQUARE_PART)
755: lexical_brackets_nestage++;
1.161 parser 756: break;
1.112 paf 757: }
758: break;
759:
760: // #COMMENT
1.194 paf 761: case LS_USER_COMMENT:
1.112 paf 762: if(c=='\n') {
763: // skip comment
1.114 paf 764: begin=PC.source;
765: begin_line=PC.line;
1.112 paf 766:
767: pop_LS(PC);
768: continue;
1.1 paf 769: }
1.48 paf 770: break;
771:
772: // STRING IN EXPRESSION
1.145 parser 773: case LS_EXPRESSION_STRING_QUOTED:
774: case LS_EXPRESSION_STRING_APOSTROFED:
1.48 paf 775: switch(c) {
776: case '"':
1.145 parser 777: case '\'':
778: if(
779: PC.ls == LS_EXPRESSION_STRING_QUOTED && c=='"' ||
780: PC.ls == LS_EXPRESSION_STRING_APOSTROFED && c=='\'') {
781: pop_LS(PC); //"abc". | 'abc'.
782: RC;
783: }
784: break;
1.48 paf 785: case '$':
1.166 parser 786: push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 787: RC;
788: case '^':
1.10 paf 789: push_LS(PC, LS_METHOD_NAME);
1.48 paf 790: RC;
1.10 paf 791: }
792: break;
793:
794: // METHOD DEFINITION
795: case LS_DEF_NAME:
1.48 paf 796: switch(c) {
797: case '[':
1.114 paf 798: PC.ls=LS_DEF_PARAMS;
1.48 paf 799: RC;
800: case '\n':
1.114 paf 801: PC.ls=LS_DEF_SPECIAL_BODY;
1.48 paf 802: RC;
1.10 paf 803: }
804: break;
1.48 paf 805:
1.10 paf 806: case LS_DEF_PARAMS:
1.48 paf 807: switch(c) {
1.192 paf 808: case '$': // common error
1.193 paf 809: result=BAD_METHOD_PARAMETER_NAME_CHARACTER;
810: goto break2;
1.48 paf 811: case ';':
812: RC;
813: case ']':
1.114 paf 814: PC.ls=*PC.source=='['?LS_DEF_LOCALS:LS_DEF_COMMENT;
1.48 paf 815: RC;
1.49 paf 816: case '\n': // wrong. bailing out
1.10 paf 817: pop_LS(PC);
1.48 paf 818: RC;
1.10 paf 819: }
820: break;
1.48 paf 821:
1.10 paf 822: case LS_DEF_LOCALS:
1.48 paf 823: switch(c) {
824: case '[':
825: case ';':
826: RC;
827: case ']':
1.114 paf 828: PC.ls=LS_DEF_COMMENT;
1.48 paf 829: RC;
830: case '\n': // wrong. bailing out
1.10 paf 831: pop_LS(PC);
1.48 paf 832: RC;
1.10 paf 833: }
834: break;
1.48 paf 835:
1.10 paf 836: case LS_DEF_COMMENT:
837: if(c=='\n') {
838: pop_LS(PC);
1.48 paf 839: RC;
1.37 paf 840: }
841: break;
842:
1.48 paf 843: case LS_DEF_SPECIAL_BODY:
1.175 paf 844: if(c=='\n')
1.48 paf 845: RC;
846: break;
847:
848: // (EXPRESSION)
1.69 paf 849: case LS_VAR_ROUND:
850: case LS_METHOD_ROUND:
1.48 paf 851: switch(c) {
852: case ')':
853: if(--lexical_brackets_nestage==0)
1.114 paf 854: if(PC.ls==LS_METHOD_ROUND) // method round param ended
855: PC.ls=LS_METHOD_AFTER; // look for method end
856: else // PC.ls==LS_VAR_ROUND // variable constructor ended
1.69 paf 857: pop_LS(PC); // return to normal life
1.48 paf 858: RC;
1.194 paf 859: case '#': // comment start skipping
860: if(end!=begin) {
861: // append piece till #
862: PC.string->APPEND_CLEAN(begin, end-begin, PC.file, begin_line);
863: }
864: // fall into COMMENT lexical state [wait for \n]
865: push_LS(PC, LS_EXPRESSION_COMMENT);
866: lexical_brackets_nestage=1;
867: continue;
1.48 paf 868: case '$':
1.166 parser 869: push_LS(PC, LS_EXPRESSION_VAR_NAME_WITH_COLON);
1.48 paf 870: RC;
871: case '^':
872: push_LS(PC, LS_METHOD_NAME);
873: RC;
874: case '(':
875: lexical_brackets_nestage++;
876: RC;
1.67 paf 877: case '-':
1.127 paf 878: switch(*PC.source) {
879: case 'f': // -f
1.67 paf 880: skip_analized=1;
881: result=FEXISTS;
1.127 paf 882: goto break2;
883: case 'd': // -d
884: skip_analized=1;
885: result=DEXISTS;
886: goto break2;
1.191 paf 887: default: // minus
1.67 paf 888: result=c;
1.127 paf 889: goto break2;
890: }
1.67 paf 891: goto break2;
1.173 paf 892: case '+': case '*': case '/': case '%': case '\\':
1.58 paf 893: case '~':
1.48 paf 894: case ';':
895: RC;
1.193 paf 896: case '&': case '|':
1.114 paf 897: if(*PC.source==c) { // && ||
1.193 paf 898: result=c=='&'?LAND:LOR;
1.67 paf 899: skip_analized=1;
1.58 paf 900: } else
901: result=c;
902: goto break2;
1.193 paf 903: case '!':
904: switch(PC.source[0]) {
905: case '|': // !| !||
906: skip_analized=1;
907: if(PC.source[1]=='|') {
908: skip_analized++;
909: result=LXOR;
910: } else
911: result=NXOR;
912: goto break2;
913: case '=': // !=
914: skip_analized=1;
915: result=NNE;
916: goto break2;
917: }
918: RC;
1.195 paf 919:
920: case '<': // <<, <=, <
921: switch(*PC.source) {
922: case '<': // <[<]
923: skip_analized=1; result=NSL; break;
924: case '=': // <[=]
925: skip_analized=1; result=NLE; break;
926: default: // <[]
927: result=c; break;
928: }
929: goto break2;
930: case '>': // >>, >=, >
931: switch(*PC.source) {
932: case '>': // >[>]
933: skip_analized=1; result=NSR; break;
934: case '=': // >[=]
935: skip_analized=1; result=NGE; break;
936: default: // >[]
937: result=c; break;
938: }
939: goto break2;
940: case '=': // ==
941: switch(*PC.source) {
942: case '=': // =[=]
943: skip_analized=1; result=NEQ; break;
944: default: // =[]
945: result=c; break; // not used now
946: }
1.58 paf 947: goto break2;
1.195 paf 948:
1.48 paf 949: case '"':
1.145 parser 950: push_LS(PC, LS_EXPRESSION_STRING_QUOTED);
951: RC;
952: case '\'':
953: push_LS(PC, LS_EXPRESSION_STRING_APOSTROFED);
1.48 paf 954: RC;
1.50 paf 955: case 'l': case 'g': case 'e': case 'n':
1.51 paf 956: if(end==begin) // right after whitespace
1.117 paf 957: if(isspace(PC.source[1])) {
958: switch(*PC.source) {
959: // case '?': // ok [and bad cases, yacc would bark at them]
960: case 't': // lt gt [et nt]
961: result=c=='l'?SLT:c=='g'?SGT:BAD_STRING_COMPARISON_OPERATOR;
962: skip_analized=1;
963: goto break2;
964: case 'e': // le ge ne [ee]
965: result=c=='l'?SLE:c=='g'?SGE:c=='n'?SNE:BAD_STRING_COMPARISON_OPERATOR;
966: skip_analized=1;
967: goto break2;
968: case 'q': // eq [lq gq nq]
969: result=c=='e'?SEQ:BAD_STRING_COMPARISON_OPERATOR;
970: skip_analized=1;
971: goto break2;
972: }
1.67 paf 973: }
974: break;
975: case 'i':
976: if(end==begin) // right after whitespace
1.117 paf 977: if(isspace(PC.source[1])) {
978: switch(PC.source[0]) {
979: case 'n': // in
1.95 paf 980: skip_analized=1;
981: result=IN;
982: goto break2;
1.117 paf 983: case 's': // is
1.95 paf 984: skip_analized=1;
985: result=IS;
986: goto break2;
987: }
1.67 paf 988: }
989: break;
990: case 'd':
991: if(end==begin) // right after whitespace
1.114 paf 992: if(PC.source[0]=='e' && PC.source[1]=='f') { // def
1.67 paf 993: skip_analized=2;
994: result=DEF;
1.58 paf 995: goto break2;
1.50 paf 996: }
1.48 paf 997: break;
998: case ' ': case '\t': case '\n':
1.63 paf 999: if(end!=begin) { // there were a string after previous operator?
1000: result=0; // return that string
1001: goto break2;
1.48 paf 1002: }
1.63 paf 1003: // that's a leading|traling space or after-operator-space
1004: // ignoring it
1005: // reset piece 'begin' position & line
1.114 paf 1006: begin=PC.source; // after whitespace char
1007: begin_line=PC.line;
1.48 paf 1008: continue;
1.1 paf 1009: }
1010: break;
1.194 paf 1011: case LS_EXPRESSION_COMMENT:
1012: if(c=='(')
1013: lexical_brackets_nestage++;
1014:
1015: switch(*PC.source) {
1016: case '\n': case ')':
1017: if(*PC.source==')')
1018: if(--lexical_brackets_nestage!=0)
1019: continue;
1020:
1021: // skip comment
1022: begin=PC.source;
1023: begin_line=PC.line;
1024:
1025: pop_LS(PC);
1026: continue;
1027: }
1028: break;
1.1 paf 1029:
1.10 paf 1030: // VARIABLE GET/PUT/WITH
1.166 parser 1031: case LS_VAR_NAME_SIMPLE_WITH_COLON:
1032: case LS_VAR_NAME_SIMPLE_WITHOUT_COLON:
1033: case LS_EXPRESSION_VAR_NAME_WITH_COLON:
1034: case LS_EXPRESSION_VAR_NAME_WITHOUT_COLON:
1035: if(
1036: PC.ls==LS_EXPRESSION_VAR_NAME_WITH_COLON ||
1037: PC.ls==LS_EXPRESSION_VAR_NAME_WITHOUT_COLON) {
1.181 paf 1038: // name in expr ends also before
1.48 paf 1039: switch(c) {
1.181 paf 1040: // expression minus
1.92 paf 1041: case '-':
1.181 paf 1042: // expression integer division
1043: case '\\':
1.48 paf 1044: pop_LS(PC);
1.114 paf 1045: PC.source--; if(--PC.col<0) { PC.line--; PC.col=-1; }
1.48 paf 1046: result=EON;
1047: goto break2;
1048: }
1049: }
1.166 parser 1050: if(
1051: PC.ls==LS_VAR_NAME_SIMPLE_WITHOUT_COLON ||
1052: PC.ls==LS_EXPRESSION_VAR_NAME_WITHOUT_COLON) {
1.142 parser 1053: // name already has ':', stop before next
1054: switch(c) {
1055: case ':':
1056: pop_LS(PC);
1057: PC.source--; if(--PC.col<0) { PC.line--; PC.col=-1; }
1058: result=EON;
1059: goto break2;
1060: }
1061: }
1.48 paf 1062: switch(c) {
1063: case 0:
1064: case ' ': case '\t': case '\n':
1065: case ';':
1.126 paf 1066: case ']': case '}': case ')':
1067: case '"': case '\'':
1.139 parser 1068: case '<': case '>': // these stand for HTML brackets AND expression binary ops
1.92 paf 1069: case '+': case '*': case '/': case '%':
1070: case '&': case '|':
1071: case '=': case '!':
1.99 paf 1072: // common delimiters
1.190 paf 1073: case ',': case '?': case '#':
1.139 parser 1074: // before call
1075: case '^':
1.1 paf 1076: pop_LS(PC);
1.114 paf 1077: PC.source--; if(--PC.col<0) { PC.line--; PC.col=-1; }
1.13 paf 1078: result=EON;
1.1 paf 1079: goto break2;
1.48 paf 1080: case '[':
1.162 parser 1081: // $name.<[>code]
1082: if(PC.col>1/*not first column*/ && (
1.163 parser 1083: end[-1]=='$'/*was start of get*/ ||
1084: end[-1]==':'/*was class name delim */ ||
1085: end[-1]=='.'/*was name delim */
1.162 parser 1086: )) {
1.166 parser 1087: push_LS(PC, LS_NAME_SQUARE_PART);
1.162 parser 1088: lexical_brackets_nestage=1;
1089: RC;
1090: }
1.114 paf 1091: PC.ls=LS_VAR_SQUARE;
1.1 paf 1092: lexical_brackets_nestage=1;
1.48 paf 1093: RC;
1094: case '{':
1095: if(begin==end) { // ${name}, no need of EON, switching LS
1.114 paf 1096: PC.ls=LS_VAR_NAME_CURLY;
1.48 paf 1097: } else {
1.114 paf 1098: PC.ls=LS_VAR_CURLY;
1.48 paf 1099: lexical_brackets_nestage=1;
1100: }
1.69 paf 1101:
1.48 paf 1102: RC;
1103: case '(':
1.114 paf 1104: PC.ls=LS_VAR_ROUND;
1.1 paf 1105: lexical_brackets_nestage=1;
1.48 paf 1106: RC;
1107: case '.': // name part delim
1108: case '$': // name part subvar
1.160 parser 1109: case ':': // class<:>name
1.166 parser 1110: // go to _WITHOUT_COLON state variant...
1111: if(PC.ls==LS_VAR_NAME_SIMPLE_WITH_COLON)
1112: PC.ls=LS_VAR_NAME_SIMPLE_WITHOUT_COLON;
1113: else if(PC.ls==LS_EXPRESSION_VAR_NAME_WITH_COLON)
1114: PC.ls=LS_EXPRESSION_VAR_NAME_WITHOUT_COLON;
1115: // ...stop before next ':'
1.48 paf 1116: RC;
1.1 paf 1117: }
1118: break;
1.48 paf 1119:
1.1 paf 1120: case LS_VAR_NAME_CURLY:
1.48 paf 1121: switch(c) {
1.162 parser 1122: case '[':
1.166 parser 1123: // ${name.<[>code]}
1124: push_LS(PC, LS_NAME_SQUARE_PART);
1.160 parser 1125: lexical_brackets_nestage=1;
1126: RC;
1.48 paf 1127: case '}': // ${name} finished, restoring LS
1.1 paf 1128: pop_LS(PC);
1.48 paf 1129: RC;
1130: case '.': // name part delim
1131: case '$': // name part subvar
1132: case ':': // ':name' or 'class:name'
1133: RC;
1.1 paf 1134: }
1135: break;
1.48 paf 1136:
1137: case LS_VAR_SQUARE:
1138: switch(c) {
1139: case '$':
1.166 parser 1140: push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1141: RC;
1142: case '^':
1.10 paf 1143: push_LS(PC, LS_METHOD_NAME);
1.48 paf 1144: RC;
1145: case ']':
1.1 paf 1146: if(--lexical_brackets_nestage==0) {
1147: pop_LS(PC);
1.48 paf 1148: RC;
1.1 paf 1149: }
1.48 paf 1150: break;
1151: case ';': // operator_or_fmt;value delim
1152: RC;
1153: case '[':
1154: lexical_brackets_nestage++;
1155: break;
1.1 paf 1156: }
1157: break;
1.48 paf 1158:
1.1 paf 1159: case LS_VAR_CURLY:
1.48 paf 1160: switch(c) {
1161: case '$':
1.166 parser 1162: push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1163: RC;
1164: case '^':
1.10 paf 1165: push_LS(PC, LS_METHOD_NAME);
1.48 paf 1166: RC;
1167: case '}':
1.1 paf 1168: if(--lexical_brackets_nestage==0) {
1169: pop_LS(PC);
1.48 paf 1170: RC;
1.1 paf 1171: }
1.48 paf 1172: break;
1173: case '{':
1.1 paf 1174: lexical_brackets_nestage++;
1.48 paf 1175: break;
1176: }
1.1 paf 1177: break;
1178:
1.10 paf 1179: // METHOD CALL
1.1 paf 1180: case LS_METHOD_NAME:
1.48 paf 1181: switch(c) {
1182: case '[':
1.166 parser 1183: // ^name.<[>code].xxx
1.162 parser 1184: if(PC.col>1/*not first column*/ && (
1.163 parser 1185: end[-1]=='^'/*was start of call*/ || // never, ^[ is literal...
1186: end[-1]==':'/*was class name delim */ ||
1187: end[-1]=='.'/*was name delim */
1.162 parser 1188: )) {
1.166 parser 1189: push_LS(PC, LS_NAME_SQUARE_PART);
1.162 parser 1190: lexical_brackets_nestage=1;
1191: RC;
1192: }
1.114 paf 1193: PC.ls=LS_METHOD_SQUARE;
1.1 paf 1194: lexical_brackets_nestage=1;
1.48 paf 1195: RC;
1196: case '{':
1.114 paf 1197: PC.ls=LS_METHOD_CURLY;
1.1 paf 1198: lexical_brackets_nestage=1;
1.48 paf 1199: RC;
1.69 paf 1200: case '(':
1.114 paf 1201: PC.ls=LS_METHOD_ROUND;
1.69 paf 1202: lexical_brackets_nestage=1;
1203: RC;
1.48 paf 1204: case '.': // name part delim
1205: case '$': // name part subvar
1206: case ':': // ':name' or 'class:name'
1.170 parser 1207: case '^': // ^abc^xxx wrong. bailing out
1208: case ']': case '}': case ')': // ^abc]}) wrong. bailing out
1.48 paf 1209: RC;
1.1 paf 1210: }
1211: break;
1.48 paf 1212:
1213: case LS_METHOD_SQUARE:
1214: switch(c) {
1215: case '$':
1.166 parser 1216: push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1217: RC;
1218: case '^':
1.10 paf 1219: push_LS(PC, LS_METHOD_NAME);
1.48 paf 1220: RC;
1221: case ';': // param delim
1222: RC;
1223: case ']':
1.1 paf 1224: if(--lexical_brackets_nestage==0) {
1.114 paf 1225: PC.ls=LS_METHOD_AFTER;
1.48 paf 1226: RC;
1.1 paf 1227: }
1.48 paf 1228: break;
1229: case '[':
1.1 paf 1230: lexical_brackets_nestage++;
1.48 paf 1231: break;
1232: }
1.1 paf 1233: break;
1.48 paf 1234:
1.1 paf 1235: case LS_METHOD_CURLY:
1.48 paf 1236: switch(c) {
1237: case '$':
1.166 parser 1238: push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1239: RC;
1240: case '^':
1.10 paf 1241: push_LS(PC, LS_METHOD_NAME);
1.94 paf 1242: RC;
1243: case ';': // param delim
1.48 paf 1244: RC;
1245: case '}':
1.1 paf 1246: if(--lexical_brackets_nestage==0) {
1.114 paf 1247: PC.ls=LS_METHOD_AFTER;
1.48 paf 1248: RC;
1.1 paf 1249: }
1.48 paf 1250: break;
1251: case '{':
1.1 paf 1252: lexical_brackets_nestage++;
1.48 paf 1253: break;
1254: }
1.1 paf 1255: break;
1.48 paf 1256:
1.1 paf 1257: case LS_METHOD_AFTER:
1.69 paf 1258: if(c=='[') {/* ][ }[ )[ */
1.114 paf 1259: PC.ls=LS_METHOD_SQUARE;
1.1 paf 1260: lexical_brackets_nestage=1;
1.48 paf 1261: RC;
1.1 paf 1262: }
1.69 paf 1263: if(c=='{') {/* ]{ }{ ){ */
1.114 paf 1264: PC.ls=LS_METHOD_CURLY;
1.69 paf 1265: lexical_brackets_nestage=1;
1266: RC;
1267: }
1268: if(c=='(') {/* ]( }( )( */
1.114 paf 1269: PC.ls=LS_METHOD_ROUND;
1.1 paf 1270: lexical_brackets_nestage=1;
1.48 paf 1271: RC;
1.1 paf 1272: }
1273: pop_LS(PC);
1.114 paf 1274: PC.source--; if(--PC.col<0) { PC.line--; PC.col=-1; }
1.13 paf 1275: result=EON;
1.1 paf 1276: goto break2;
1277: }
1.9 paf 1278: if(c==0) {
1.1 paf 1279: result=-1;
1280: break;
1281: }
1282: }
1283:
1284: break2:
1.59 paf 1285: if(end!=begin) { // there is last piece?
1286: if((c=='@' || c==0) && end[-1]=='\n') { // we are before LS_DEF_NAME or EOF?
1287: // strip last \n
1.10 paf 1288: end--;
1.137 parser 1289: if(end!=begin && end[-1]=='\n') // allow one empty line before LS_DEF_NAME
1290: end--;
1.59 paf 1291: }
1.194 paf 1292: if(end!=begin && PC.ls!=LS_USER_COMMENT) { // last piece still alive and not comment?
1.59 paf 1293: // append it
1.121 paf 1294: PC.string->APPEND_CLEAN(begin, end-begin, PC.file, begin_line/*, start_col*/);
1.30 paf 1295: }
1.59 paf 1296: }
1.114 paf 1297: if(PC.string->size()) { // something accumulated?
1.17 paf 1298: // create STRING value: array of OP_VALUE+vstring
1.114 paf 1299: *lvalp=VL(NEW VString(*PC.string));
1.10 paf 1300: // new pieces storage
1.114 paf 1301: PC.string=NEW String(POOL);
1.58 paf 1302: // make current result be pending for next call, return STRING for now
1.114 paf 1303: PC.pending_state=result; result=STRING;
1.58 paf 1304: }
1.67 paf 1305: if(skip_analized) {
1.114 paf 1306: PC.source+=skip_analized; PC.col+=skip_analized;
1.1 paf 1307: }
1.58 paf 1308: return result;
1.1 paf 1309: }
1310:
1.110 paf 1311: static int real_yyerror(parse_control *pc, char *s) { // Called by yyparse on error
1.114 paf 1312: strncpy(PC.error, s, MAX_STRING);
1.1 paf 1313: return 1;
1.110 paf 1314: }
1.1 paf 1315:
1.110 paf 1316: static void yyprint(FILE *file, int type, YYSTYPE value) {
1317: if(type==STRING)
1.120 paf 1318: fprintf(file, " \"%s\"", LA2S(value)->cstr());
1.110 paf 1319: }
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