Annotation of parser3/src/main/compile.y, revision 1.193
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:
1.193 ! paf 8: $Id: compile.y,v 1.192 2002/09/13 11:35:13 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"
1.39 paf 37:
1.85 paf 38: #define SELF_ELEMENT_NAME "self"
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 "!="
75:
76: %token SLT "lt"
77: %token SGT "gt"
78: %token SLE "le"
79: %token SGE "ge"
80: %token SEQ "eq"
81: %token SNE "ne"
82:
1.67 paf 83: %token DEF "def"
84: %token IN "in"
85: %token FEXISTS "-f"
1.127 paf 86: %token DEXISTS "-d"
1.95 paf 87: %token IS "is"
1.67 paf 88:
1.57 paf 89: /* logical */
1.193 ! paf 90: %left "!||"
1.57 paf 91: %left "||"
92: %left "&&"
1.131 paf 93: %left '<' '>' "<=" ">=" "lt" "gt" "le" "ge"
94: %left "==" "!=" "eq" "ne"
95: %left "is" "def" "in" "-f" "-d"
1.68 paf 96: %left '!'
1.57 paf 97:
98: /* bitwise */
1.193 ! paf 99: %left "!|"
1.131 paf 100: %left '|'
101: %left '&'
1.68 paf 102: %left '~'
1.57 paf 103:
1.56 paf 104: /* numerical */
1.55 paf 105: %left '-' '+'
1.173 paf 106: %left '*' '/' '%' '\\'
1.56 paf 107: %left NEG /* negation: unary - */
1.1 paf 108:
109: %%
1.152 parser 110: all:
1.10 paf 111: one_big_piece {
1.75 paf 112: Method& method=*NEW Method(POOL,
1.187 paf 113: PC.request->main_method_name,
1.122 paf 114: Method::CT_ANY,
1.81 paf 115: 0, 0, /*min, max numbered_params_count*/
1.75 paf 116: 0/*param_names*/, 0/*local_names*/,
117: $1/*parser_code*/, 0/*native_code*/);
1.187 paf 118: PC.cclass->add_method(PC.request->main_method_name, method);
1.10 paf 119: }
120: | methods;
121:
122: methods: method | methods method;
123: one_big_piece: maybe_codes;
124:
1.34 paf 125: method: control_method | code_method;
126:
127: control_method: '@' STRING '\n'
1.132 paf 128: maybe_control_strings {
1.120 paf 129: const String& command=*LA2S($2);
1.34 paf 130: YYSTYPE strings_code=$4;
1.37 paf 131: if(strings_code->size()<1*2) {
1.114 paf 132: strcpy(PC.error, "@");
133: strcat(PC.error, command.cstr());
134: strcat(PC.error, " is empty");
1.37 paf 135: YYERROR;
136: }
1.74 paf 137: if(command==CLASS_NAME) {
1.188 paf 138: if(PC.cclass->base_class()) { // already changed from default?
1.114 paf 139: strcpy(PC.error, "class already have a name '");
140: strncat(PC.error, PC.cclass->name().cstr(), 100);
141: strcat(PC.error, "'");
1.73 paf 142: YYERROR;
143: }
144: if(strings_code->size()==1*2) {
145: // new class' name
1.120 paf 146: const String *name=LA2S(strings_code);
1.73 paf 147: // creating the class
1.114 paf 148: PC.cclass=NEW VClass(POOL);
149: PC.cclass->set_name(*name);
1.73 paf 150: // append to request's classes
1.114 paf 151: PC.request->classes().put(*name, PC.cclass);
1.73 paf 152: } else {
1.114 paf 153: strcpy(PC.error, "@"CLASS_NAME" must contain sole name");
1.34 paf 154: YYERROR;
155: }
1.130 paf 156: } else if(command==USE_CONTROL_METHOD_NAME) {
157: for(int i=0; i<strings_code->size(); i+=2)
1.159 parser 158: PC.request->use_file(*LA2S(strings_code, i));
1.130 paf 159: } else if(command==BASE_NAME) {
1.188 paf 160: if(PC.cclass->base_class()) { // already changed from default?
1.130 paf 161: strcpy(PC.error, "class already have a base '");
1.188 paf 162: strncat(PC.error, PC.cclass->base_class()->name().cstr(), 100);
1.130 paf 163: strcat(PC.error, "'");
164: YYERROR;
165: }
166: if(strings_code->size()==1*2) {
167: const String& base_name=*LA2S(strings_code);
1.189 paf 168: Value *vbase_class=static_cast<VClass *>(
1.130 paf 169: PC.request->classes().get(base_name));
1.189 paf 170: VStateless_class *base_class=vbase_class?vbase_class->get_class():0;
171: if(!base_class) {
1.130 paf 172: strcpy(PC.error, base_name.cstr());
173: strcat(PC.error, ": undefined class in @"BASE_NAME);
1.73 paf 174: YYERROR;
175: }
1.130 paf 176: // @CLASS == @BASE sanity check
1.189 paf 177: if(PC.cclass==base_class) {
1.130 paf 178: strcpy(PC.error, "@"CLASS_NAME" equals @"BASE_NAME);
1.45 paf 179: YYERROR;
1.34 paf 180: }
1.189 paf 181: PC.cclass->set_base(base_class);
1.34 paf 182: } else {
1.130 paf 183: strcpy(PC.error, "@"BASE_NAME" must contain sole name");
1.34 paf 184: YYERROR;
185: }
1.130 paf 186: } else {
187: strcpy(PC.error, "'");
188: strncat(PC.error, command.cstr(), MAX_STRING/2);
189: strcat(PC.error, "' invalid special name. valid names are "
190: "'"CLASS_NAME"', '"USE_CONTROL_METHOD_NAME"' and '"BASE_NAME"'");
191: YYERROR;
1.34 paf 192: }
193: };
1.132 paf 194: maybe_control_strings: empty | control_strings;
1.37 paf 195: control_strings: control_string | control_strings control_string { $$=$1; P($$, $2) };
196: control_string: maybe_string '\n';
197: maybe_string: empty | STRING;
1.34 paf 198:
199: code_method: '@' STRING bracketed_maybe_strings maybe_bracketed_strings maybe_comment '\n'
1.10 paf 200: maybe_codes {
1.120 paf 201: const String *name=LA2S($2);
1.10 paf 202:
203: YYSTYPE params_names_code=$3;
1.75 paf 204: Array *params_names=0;
205: if(int size=params_names_code->size()) {
206: params_names=NEW Array(POOL);
207: for(int i=0; i<size; i+=2)
1.120 paf 208: *params_names+=LA2S(params_names_code, i);
1.75 paf 209: }
1.10 paf 210:
211: YYSTYPE locals_names_code=$4;
1.75 paf 212: Array *locals_names=0;
213: if(int size=locals_names_code->size()) {
214: locals_names=NEW Array(POOL);
215: for(int i=0; i<size; i+=2)
1.120 paf 216: *locals_names+=LA2S(locals_names_code, i);
1.75 paf 217: }
1.10 paf 218:
1.76 paf 219: Method& method=*NEW Method(POOL,
220: *name,
1.122 paf 221: Method::CT_ANY,
1.81 paf 222: 0, 0/*min,max numbered_params_count*/,
1.76 paf 223: params_names, locals_names,
224: $7, 0);
1.114 paf 225: PC.cclass->add_method(*name, method);
1.8 paf 226: };
1.10 paf 227:
228: maybe_bracketed_strings: empty | bracketed_maybe_strings;
229: bracketed_maybe_strings: '[' maybe_strings ']' {$$=$2};
230: maybe_strings: empty | strings;
231: strings: STRING | strings ';' STRING { $$=$1; P($$, $3) };
232:
233: maybe_comment: empty | STRING;
1.1 paf 234:
235: /* codes */
236:
1.10 paf 237: maybe_codes: empty | codes;
238:
1.90 paf 239: codes: code | codes code { $$=$1; P($$, $2) };
1.81 paf 240: code: write_string | action;
1.149 parser 241: action: get | put | call;
1.1 paf 242:
243: /* get */
244:
1.64 paf 245: get: get_value {
1.184 paf 246: $$=$1; /* stack: resulting value */
247: changetail_or_append($$,
1.186 paf 248: OP_GET_ELEMENT, false, /*->*/OP_GET_ELEMENT__WRITE,
249: /*or */OP_WRITE_VALUE
1.184 paf 250: ); /* value=pop; wcontext.write(value) */
1.1 paf 251: };
1.163 parser 252: get_value: '$' get_name_value { $$=$2 };
1.64 paf 253: get_name_value: name_without_curly_rdive EON | name_in_curly_rdive;
1.1 paf 254: name_in_curly_rdive: '{' name_without_curly_rdive '}' { $$=$2 };
1.44 paf 255: name_without_curly_rdive:
256: name_without_curly_rdive_read
257: | name_without_curly_rdive_class;
1.19 paf 258: name_without_curly_rdive_read: name_without_curly_rdive_code {
1.25 paf 259: $$=N(POOL);
1.22 paf 260: Array *diving_code=$1;
1.120 paf 261: const String *first_name=LA2S(diving_code);
1.179 paf 262: // self.xxx... -> xxx...
263: // OP_VALUE+string+OP_GET_ELEMENT+... -> OP_WITH_SELF+...
1.85 paf 264: if(first_name && *first_name==SELF_ELEMENT_NAME) {
1.54 paf 265: O($$, OP_WITH_SELF); /* stack: starting context */
1.22 paf 266: P($$, diving_code,
267: /* skip over... */
1.179 paf 268: diving_code->size()>=3?3/*OP_VALUE+string+OP_GET_ELEMENTx*/:2/*OP_+string*/);
1.22 paf 269: } else {
1.54 paf 270: O($$, OP_WITH_READ); /* stack: starting context */
1.179 paf 271:
272: // ^if ELEMENT -> ^if ELEMENT_OR_OPERATOR
273: // OP_VALUE+string+OP_GET_ELEMENT. -> OP_VALUE+string+OP_GET_ELEMENT_OR_OPERATOR.
1.180 paf 274: if(PC.in_call_value && diving_code->size()==3)
1.179 paf 275: diving_code->put_int(2, OP_GET_ELEMENT_OR_OPERATOR);
1.22 paf 276: P($$, diving_code);
277: }
278: /* diving code; stack: current context */
1.1 paf 279: };
1.155 parser 280: name_without_curly_rdive_class: class_prefix name_without_curly_rdive_code { $$=$1; P($$, $2) };
1.19 paf 281: name_without_curly_rdive_code: name_advance2 | name_path name_advance2 { $$=$1; P($$, $2) };
1.1 paf 282:
283: /* put */
284:
1.81 paf 285: put: '$' name_expr_wdive construct {
1.20 paf 286: $$=$2; /* stack: context,name */
1.52 paf 287: P($$, $3); /* stack: context,name,constructor_value */
1.20 paf 288: };
1.44 paf 289: name_expr_wdive:
1.157 parser 290: name_expr_wdive_root
291: | name_expr_wdive_write
1.44 paf 292: | name_expr_wdive_class;
1.157 parser 293: name_expr_wdive_root: name_expr_dive_code {
1.44 paf 294: $$=N(POOL);
1.23 paf 295: Array *diving_code=$1;
1.120 paf 296: const String *first_name=LA2S(diving_code);
1.179 paf 297: // $self.xxx... -> $xxx...
298: // OP_VALUE+string+OP_GET_ELEMENT+... -> OP_WITH_SELF+...
1.85 paf 299: if(first_name && *first_name==SELF_ELEMENT_NAME) {
1.54 paf 300: O($$, OP_WITH_SELF); /* stack: starting context */
1.23 paf 301: P($$, diving_code,
302: /* skip over... */
1.179 paf 303: diving_code->size()>=3?3/*OP_VALUE+string+OP_GET_ELEMENTx*/:2/*OP_+string*/);
1.23 paf 304: } else {
1.157 parser 305: O($$, OP_WITH_ROOT); /* stack: starting context */
1.23 paf 306: P($$, diving_code);
307: }
308: /* diving code; stack: current context */
1.156 parser 309: };
1.157 parser 310: name_expr_wdive_write: '.' name_expr_dive_code {
1.156 parser 311: $$=N(POOL);
1.157 parser 312: O($$, OP_WITH_WRITE); /* stack: starting context */
1.156 parser 313: P($$, $2); /* diving code; stack: context,name */
1.20 paf 314: };
1.155 parser 315: name_expr_wdive_class: class_prefix name_expr_dive_code { $$=$1; P($$, $2) };
1.20 paf 316:
1.149 parser 317: construct:
1.163 parser 318: construct_square
319: | construct_round
320: | construct_curly
1.149 parser 321: ;
322: construct_square: '[' any_constructor_code_value ']' {
323: // stack: context, name
324: $$=$2; // stack: context, name, value
1.81 paf 325: O($$, OP_CONSTRUCT_VALUE); /* value=pop; name=pop; context=pop; construct(context,name,value) */
326: }
327: ;
1.149 parser 328: construct_round: '(' expr_value ')' {
1.182 paf 329: $$=N(POOL);
330: O($$, OP_PREPARE_TO_EXPRESSION);
1.149 parser 331: // stack: context, name
1.182 paf 332: P($$, $2); // stack: context, name, value
1.163 parser 333: O($$, OP_CONSTRUCT_EXPR); /* value=pop->as_expr_result; name=pop; context=pop; construct(context,name,value) */
1.81 paf 334: }
1.52 paf 335: ;
1.149 parser 336: construct_curly: '{' maybe_codes '}' {
337: // stack: context, name
338: $$=N(POOL);
1.186 paf 339: OA($$, OP_CURLY_CODE__CONSTRUCT, $2); /* code=pop; name=pop; context=pop; construct(context,name,junction(code)) */
1.149 parser 340: };
341:
1.55 paf 342: any_constructor_code_value:
1.157 parser 343: void_value /* optimized $var[] case */
1.52 paf 344: | STRING /* optimized $var[STRING] case */
1.55 paf 345: | constructor_code_value /* $var[something complex] */
1.1 paf 346: ;
1.55 paf 347: constructor_code_value: constructor_code {
1.25 paf 348: $$=N(POOL);
1.186 paf 349: OA($$, OP_OBJECT_POOL, $1); /* stack: empty write context */
1.183 paf 350: /* some code that writes to that context */
351: /* context=pop; stack: context.value() */
1.1 paf 352: };
1.55 paf 353: constructor_code: codes__excluding_sole_str_literal;
1.27 paf 354: codes__excluding_sole_str_literal: action | code codes { $$=$1; P($$, $2) };
355:
1.1 paf 356: /* call */
357:
1.66 paf 358: call: call_value {
359: $$=$1; /* stack: value */
1.185 paf 360: changetail_or_append($$,
1.186 paf 361: OP_CALL, true, /*->*/ OP_CALL__WRITE,
362: /*or */OP_WRITE_VALUE); /* value=pop; wcontext.write(value) */
1.66 paf 363: };
1.177 paf 364: call_value: '^' {
1.180 paf 365: PC.in_call_value=true;
1.177 paf 366: }
367: call_name {
1.180 paf 368: PC.in_call_value=false;
1.177 paf 369: }
1.154 parser 370: store_params EON { /* ^field.$method{vasya} */
371: $$=$3; /* with_xxx,diving code; stack: context,method_junction */
1.123 paf 372:
1.154 parser 373: YYSTYPE params_code=$5;
1.186 paf 374: if(params_code->size()==3) { // probably [] case. [OP_VALUE + Void + STORE_PARAM]
1.123 paf 375: if(Value *value=LA2V(params_code)) // it is OP_VALUE + value?
1.140 parser 376: if(!value->is_defined()) // value is VVoid?
1.123 paf 377: params_code=0; // ^zzz[] case. don't append lone empty param.
1.186 paf 378: }
379: /* stack: context, method_junction */
380: OA($$, OP_CALL, params_code); // method_frame=make frame(pop junction); ncontext=pop; call(ncontext,method_frame) stack: value
1.1 paf 381: };
382:
1.43 paf 383: call_name: name_without_curly_rdive;
1.38 paf 384:
1.9 paf 385: store_params: store_param | store_params store_param { $$=$1; P($$, $2) };
1.69 paf 386: store_param:
387: store_square_param
388: | store_round_param
389: | store_curly_param
1.31 paf 390: ;
1.123 paf 391: store_square_param: '[' store_code_param_parts ']' {$$=$2};
1.69 paf 392: store_round_param: '(' store_expr_param_parts ')' {$$=$2};
1.94 paf 393: store_curly_param: '{' store_curly_param_parts '}' {$$=$2};
1.69 paf 394: store_code_param_parts:
395: store_code_param_part
396: | store_code_param_parts ';' store_code_param_part { $$=$1; P($$, $3) }
397: ;
398: store_expr_param_parts:
399: store_expr_param_part
400: | store_expr_param_parts ';' store_expr_param_part { $$=$1; P($$, $3) }
401: ;
1.94 paf 402: store_curly_param_parts:
403: store_curly_param_part
404: | store_curly_param_parts ';' store_curly_param_part { $$=$1; P($$, $3) }
405: ;
1.120 paf 406: store_code_param_part: code_param_value {
1.32 paf 407: $$=$1;
1.54 paf 408: O($$, OP_STORE_PARAM);
1.120 paf 409: };
1.69 paf 410: store_expr_param_part: write_expr_value {
411: $$=N(POOL);
1.186 paf 412: OA($$, OP_EXPR_CODE__STORE_PARAM, $1);
1.69 paf 413: };
1.94 paf 414: store_curly_param_part: maybe_codes {
415: $$=N(POOL);
1.186 paf 416: OA($$, OP_CURLY_CODE__STORE_PARAM, $1);
1.94 paf 417: };
1.120 paf 418: code_param_value:
1.157 parser 419: void_value /* optimized [;...] case */
1.120 paf 420: | STRING /* optimized [STRING] case */
421: | constructor_code_value /* [something complex] */
422: ;
1.90 paf 423: write_expr_value: expr_value {
1.182 paf 424: $$=N(POOL);
425: O($$, OP_PREPARE_TO_EXPRESSION);
426: P($$, $1);
1.102 paf 427: O($$, OP_WRITE_EXPR_RESULT);
1.69 paf 428: };
1.1 paf 429:
430: /* name */
431:
1.20 paf 432: name_expr_dive_code: name_expr_value | name_path name_expr_value { $$=$1; P($$, $2) };
1.1 paf 433:
1.9 paf 434: name_path: name_step | name_path name_step { $$=$1; P($$, $2) };
1.1 paf 435: name_step: name_advance1 '.';
436: name_advance1: name_expr_value {
1.177 paf 437: // we know that name_advance1 not called from ^xxx context
438: // so we'll not check for operator call possibility as we do in name_advance2
439:
1.1 paf 440: /* stack: context */
441: $$=$1; /* stack: context,name */
1.54 paf 442: O($$, OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */
1.1 paf 443: };
444: name_advance2: name_expr_value {
445: /* stack: context */
446: $$=$1; /* stack: context,name */
1.179 paf 447: O($$, OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */
1.1 paf 448: }
1.4 paf 449: | STRING BOGUS
1.1 paf 450: ;
451: name_expr_value:
1.4 paf 452: STRING /* subname_is_const */
1.1 paf 453: | name_expr_subvar_value /* $subname_is_var_value */
1.160 parser 454: | name_expr_with_subvar_value /* xxx$part_of_subname_is_var_value */
1.166 parser 455: | name_square_code_value /* [codes] */
1.1 paf 456: ;
457: name_expr_subvar_value: '$' subvar_ref_name_rdive {
458: $$=$2;
1.54 paf 459: O($$, OP_GET_ELEMENT);
1.1 paf 460: };
1.4 paf 461: name_expr_with_subvar_value: STRING subvar_get_writes {
1.183 paf 462: Array *code;
463: {
464: change_string_literal_to_write_string_literal(code=$1);
465: P(code, $2);
466: }
1.25 paf 467: $$=N(POOL);
1.186 paf 468: OA($$, OP_STRING_POOL, code);
1.1 paf 469: };
1.166 parser 470: name_square_code_value: '[' codes ']' {
1.160 parser 471: $$=N(POOL);
1.186 paf 472: OA($$, OP_OBJECT_POOL, $2); /* stack: empty write context */
1.183 paf 473: /* some code that writes to that context */
474: /* context=pop; stack: context.value() */
1.160 parser 475: };
1.154 parser 476: subvar_ref_name_rdive: STRING {
1.25 paf 477: $$=N(POOL);
1.54 paf 478: O($$, OP_WITH_READ);
1.9 paf 479: P($$, $1);
1.1 paf 480: };
1.9 paf 481: subvar_get_writes: subvar__get_write | subvar_get_writes subvar__get_write { $$=$1; P($$, $2) };
1.1 paf 482: subvar__get_write: '$' subvar_ref_name_rdive {
483: $$=$2;
1.54 paf 484: O($$, OP_GET_ELEMENT__WRITE);
1.42 paf 485: };
486:
1.154 parser 487: class_prefix:
488: class_static_prefix
489: | class_constructor_prefix
490: ;
1.155 parser 491: class_static_prefix: STRING ':' {
492: $$=$1; // stack: class name string
1.189 paf 493: if(*LA2S($$) == BASE_NAME) { // pseude BASE class
494: if(VStateless_class *base=PC.cclass->base_class()) {
495: change_string_literal_value($$, base->name());
496: } else {
497: strcpy(PC.error, "no base class declared");
498: YYERROR;
499: }
500: }
1.155 parser 501: O($$, OP_GET_CLASS);
502: };
503: class_constructor_prefix: class_static_prefix ':' {
1.154 parser 504: $$=$1;
1.180 paf 505: if(!PC.in_call_value) {
1.154 parser 506: strcpy(PC.error, ":: not allowed here");
507: YYERROR;
508: }
1.155 parser 509: O($$, OP_PREPARE_TO_CONSTRUCT_OBJECT);
1.1 paf 510: };
511:
1.53 paf 512:
1.56 paf 513: /* expr */
1.53 paf 514:
1.81 paf 515: expr_value: expr {
1.182 paf 516: // see OP_PREPARE_TO_EXPRESSION!!
1.81 paf 517: if(($$=$1)->size()==2) // only one string literal in there?
1.62 paf 518: change_string_literal_to_double_literal($$); // make that string literal Double
519: };
1.56 paf 520: expr:
1.62 paf 521: STRING
1.64 paf 522: | get_value
1.66 paf 523: | call_value
1.64 paf 524: | '"' string_inside_quotes_value '"' { $$ = $2; }
1.145 parser 525: | '\'' string_inside_quotes_value '\'' { $$ = $2; }
1.60 paf 526: | '(' expr ')' { $$ = $2; }
527: /* stack: operand // stack: @operand */
528: | '-' expr %prec NEG { $$=$2; O($$, OP_NEG) }
1.166 parser 529: | '+' expr %prec NEG { $$=$2 }
1.68 paf 530: | '~' expr { $$=$2; O($$, OP_INV) }
531: | '!' expr { $$=$2; O($$, OP_NOT) }
532: | "def" expr { $$=$2; O($$, OP_DEF) }
533: | "in" expr { $$=$2; O($$, OP_IN) }
534: | "-f" expr { $$=$2; O($$, OP_FEXISTS) }
1.127 paf 535: | "-d" expr { $$=$2; O($$, OP_DEXISTS) }
1.60 paf 536: /* stack: a,b // stack: a@b */
537: | expr '-' expr { $$=$1; P($$, $3); O($$, OP_SUB) }
538: | expr '+' expr { $$=$1; P($$, $3); O($$, OP_ADD) }
539: | expr '*' expr { $$=$1; P($$, $3); O($$, OP_MUL) }
540: | expr '/' expr { $$=$1; P($$, $3); O($$, OP_DIV) }
541: | expr '%' expr { $$=$1; P($$, $3); O($$, OP_MOD) }
1.173 paf 542: | expr '\\' expr { $$=$1; P($$, $3); O($$, OP_INTDIV) }
1.60 paf 543: | expr '&' expr { $$=$1; P($$, $3); O($$, OP_BIN_AND) }
544: | expr '|' expr { $$=$1; P($$, $3); O($$, OP_BIN_OR) }
1.193 ! paf 545: | expr "!|" expr { $$=$1; P($$, $3); O($$, OP_BIN_XOR) }
1.186 paf 546: | expr "&&" expr { $$=$1; OA($$, OP_NESTED_CODE, $3); O($$, OP_LOG_AND) }
547: | expr "||" expr { $$=$1; OA($$, OP_NESTED_CODE, $3); O($$, OP_LOG_OR) }
1.193 ! paf 548: | expr "!||" expr { $$=$1; P($$, $3); O($$, OP_LOG_XOR) }
1.60 paf 549: | expr '<' expr { $$=$1; P($$, $3); O($$, OP_NUM_LT) }
550: | expr '>' expr { $$=$1; P($$, $3); O($$, OP_NUM_GT) }
551: | expr "<=" expr { $$=$1; P($$, $3); O($$, OP_NUM_LE) }
552: | expr ">=" expr { $$=$1; P($$, $3); O($$, OP_NUM_GE) }
553: | expr "==" expr { $$=$1; P($$, $3); O($$, OP_NUM_EQ) }
554: | expr "!=" expr { $$=$1; P($$, $3); O($$, OP_NUM_NE) }
1.61 paf 555: | expr "lt" expr { $$=$1; P($$, $3); O($$, OP_STR_LT) }
556: | expr "gt" expr { $$=$1; P($$, $3); O($$, OP_STR_GT) }
557: | expr "le" expr { $$=$1; P($$, $3); O($$, OP_STR_LE) }
558: | expr "ge" expr { $$=$1; P($$, $3); O($$, OP_STR_GE) }
559: | expr "eq" expr { $$=$1; P($$, $3); O($$, OP_STR_EQ) }
560: | expr "ne" expr { $$=$1; P($$, $3); O($$, OP_STR_NE) }
1.95 paf 561: | expr "is" expr { $$=$1; P($$, $3); O($$, OP_IS) }
1.56 paf 562: ;
1.55 paf 563:
1.65 paf 564: string_inside_quotes_value: maybe_codes {
1.64 paf 565: $$=N(POOL);
1.186 paf 566: OA($$, OP_STRING_POOL, $1); /* stack: empty write context */
1.183 paf 567: /* some code that writes to that context */
568: /* context=pop; stack: context.get_string() */
1.53 paf 569: };
1.1 paf 570:
1.27 paf 571: /* basics */
1.1 paf 572:
1.81 paf 573: write_string: STRING {
1.102 paf 574: // optimized from OP_STRING+OP_WRITE_VALUE to OP_STRING__WRITE
1.84 paf 575: change_string_literal_to_write_string_literal($$=$1)
1.54 paf 576: };
577:
1.157 parser 578: void_value: /* empty */ { $$=VL(NEW VVoid(POOL)) };
1.25 paf 579: empty: /* empty */ { $$=N(POOL) };
1.1 paf 580:
581: %%
1.105 paf 582: #endif
1.1 paf 583:
584: /*
585: 000$111(2222)00
586: 000$111{3333}00
1.9 paf 587: $,^: push,=0
1.1 paf 588: 1:( { break=pop
589: 2:( ) pop
590: 3:{ } pop
591:
592: 000^111(2222)4444{33333}4000
1.9 paf 593: $,^: push,=0
1.1 paf 594: 1:( { break=pop
595: 2:( )=4
596: 3:{ }=4
597: 4:[^({]=pop
598: */
599:
1.110 paf 600: static int yylex(YYSTYPE *lvalp, void *pc) {
1.177 paf 601: #define lexical_brackets_nestage PC.brackets_nestages[PC.ls_sp]
1.48 paf 602: #define RC {result=c; goto break2; }
1.1 paf 603:
604: register int c;
605: int result;
606:
1.114 paf 607: if(PC.pending_state) {
608: result=PC.pending_state;
609: PC.pending_state=0;
1.1 paf 610: return result;
611: }
612:
1.114 paf 613: const char *begin=PC.source;
1.91 paf 614: const char *end;
1.114 paf 615: int begin_line=PC.line;
1.67 paf 616: int skip_analized=0;
1.50 paf 617: while(true) {
1.114 paf 618: c=*(end=(PC.source++));
1.166 parser 619: // fprintf(stderr, "\nchar: %c %02X; nestage: %d, sp=%d", c, c, lexical_brackets_nestage, PC.sp);
1.1 paf 620:
1.4 paf 621: if(c=='\n') {
1.114 paf 622: PC.line++;
623: PC.col=0;
1.10 paf 624: } else
1.114 paf 625: PC.col++;
1.73 paf 626:
1.171 parser 627: if(c=='@' && PC.col==0+1) {
1.175 paf 628: if(PC.ls==LS_DEF_SPECIAL_BODY) {
629: // @SPECIAL
630: // ...
631: // @<here =
632: pop_LS(PC); // exiting from LS_DEF_SPECIAL_BODY state
633: } // continuing checks
1.171 parser 634: if(PC.ls==LS_USER) {
635: push_LS(PC, LS_DEF_NAME);
636: RC;
1.175 paf 637: } else // @ in first column inside some code [when could that be?]
1.171 parser 638: result=BAD_METHOD_DECL_START;
639: goto break2;
640: } else if(c=='^')
1.169 parser 641: switch(PC.ls) {
642: case LS_EXPRESSION_VAR_NAME_WITH_COLON:
643: case LS_EXPRESSION_VAR_NAME_WITHOUT_COLON:
644: case LS_VAR_NAME_SIMPLE_WITH_COLON:
645: case LS_VAR_NAME_SIMPLE_WITHOUT_COLON:
646: case LS_VAR_NAME_CURLY:
647: case LS_METHOD_NAME:
648: case LS_COMMENT:
649: case LS_DEF_COMMENT:
650: // no literals in names, please
651: break;
652: default:
1.114 paf 653: switch(*PC.source) {
1.165 parser 654: // ^escaping some punctuators
1.48 paf 655: case '^': case '$': case ';':
1.126 paf 656: case '(': case ')':
1.48 paf 657: case '[': case ']':
658: case '{': case '}':
1.172 parser 659: case '"': case ':':
1.40 paf 660: if(end!=begin) {
661: // append piece till ^
1.121 paf 662: PC.string->APPEND_CLEAN(begin, end-begin, PC.file, begin_line);
1.40 paf 663: }
1.63 paf 664: // reset piece 'begin' position & line
1.164 parser 665: end=begin=PC.source; // ^
1.114 paf 666: begin_line=PC.line;
1.164 parser 667: if(PC.ls==LS_METHOD_AFTER) {
668: pop_LS(PC);
669: result=EON;
1.165 parser 670: skip_analized=-1; // return to ^ afterwards to assure it's literality
1.164 parser 671: goto break2;
672: } else {
673: // skip over _ after ^
674: PC.source++; PC.col++;
675: // skip analysis = forced literal
676: continue;
677: }
1.114 paf 678:
679: // converting ^#HH into char(hex(HH))
680: case '#':
681: if(end!=begin) {
682: // append piece till ^
1.121 paf 683: PC.string->APPEND_CLEAN(begin, end-begin, PC.file, begin_line);
1.114 paf 684: }
685: // #HH ?
686: if(PC.source[0]=='#' && PC.source[1] && PC.source[2]) {
687: char *hex=(char *)POOL.malloc(1);
688: hex[0]=
689: hex_value[(unsigned char)PC.source[1]]*0x10+
690: hex_value[(unsigned char)PC.source[2]];
691: if(hex[0]==0) {
692: result=BAD_HEX_LITERAL;
693: goto break2; // wrong hex value[no ^#00 chars allowed]: bail out
694: }
695: // append char(hex(HH))
1.121 paf 696: PC.string->APPEND_CLEAN(hex, 1, PC.file, begin_line);
1.114 paf 697: // skip over ^#HH
698: PC.source+=3;
699: PC.col+=3;
700: // reset piece 'begin' position & line
701: begin=PC.source; // ^
702: begin_line=PC.line;
703: continue;
704: }
705: break;
1.1 paf 706: }
1.169 parser 707: break;
708: }
1.113 paf 709: // #comment start skipping
1.114 paf 710: if(c=='#' && PC.col==1) {
1.112 paf 711: if(end!=begin) {
712: // append piece till #
1.121 paf 713: PC.string->APPEND_CLEAN(begin, end-begin, PC.file, begin_line);
1.112 paf 714: }
715: // fall into COMMENT lexical state [wait for \n]
716: push_LS(PC, LS_COMMENT);
1.175 paf 717: continue;
1.112 paf 718: }
1.114 paf 719: switch(PC.ls) {
1.10 paf 720:
721: // USER'S = NOT OURS
1.1 paf 722: case LS_USER:
1.166 parser 723: case LS_NAME_SQUARE_PART: // name.[here].xxx
1.153 parser 724: if(PC.trim_bof)
725: switch(c) {
726: case '\n': case ' ': case '\t':
1.152 parser 727: begin=PC.source;
728: begin_line=PC.line;
729: continue; // skip it
1.153 parser 730: default:
731: PC.trim_bof=false;
1.152 parser 732: }
1.48 paf 733: switch(c) {
734: case '$':
1.166 parser 735: push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 736: RC;
737: case '^':
738: push_LS(PC, LS_METHOD_NAME);
739: RC;
1.166 parser 740: case ']':
741: if(PC.ls==LS_NAME_SQUARE_PART)
742: if(--lexical_brackets_nestage==0) {// $name.[co<]?>de<]?>
743: pop_LS(PC); // $name.[co<]>de<]!>
744: RC;
745: }
1.160 parser 746: break;
1.166 parser 747: case '[': // $name.[co<[>de]
748: if(PC.ls==LS_NAME_SQUARE_PART)
749: lexical_brackets_nestage++;
1.161 parser 750: break;
1.112 paf 751: }
752: break;
753:
754: // #COMMENT
755: case LS_COMMENT:
756: if(c=='\n') {
757: // skip comment
1.114 paf 758: begin=PC.source;
759: begin_line=PC.line;
1.112 paf 760:
761: pop_LS(PC);
762: continue;
1.1 paf 763: }
1.48 paf 764: break;
765:
766: // STRING IN EXPRESSION
1.145 parser 767: case LS_EXPRESSION_STRING_QUOTED:
768: case LS_EXPRESSION_STRING_APOSTROFED:
1.48 paf 769: switch(c) {
770: case '"':
1.145 parser 771: case '\'':
772: if(
773: PC.ls == LS_EXPRESSION_STRING_QUOTED && c=='"' ||
774: PC.ls == LS_EXPRESSION_STRING_APOSTROFED && c=='\'') {
775: pop_LS(PC); //"abc". | 'abc'.
776: RC;
777: }
778: break;
1.48 paf 779: case '$':
1.166 parser 780: push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 781: RC;
782: case '^':
1.10 paf 783: push_LS(PC, LS_METHOD_NAME);
1.48 paf 784: RC;
1.10 paf 785: }
786: break;
787:
788: // METHOD DEFINITION
789: case LS_DEF_NAME:
1.48 paf 790: switch(c) {
791: case '[':
1.114 paf 792: PC.ls=LS_DEF_PARAMS;
1.48 paf 793: RC;
794: case '\n':
1.114 paf 795: PC.ls=LS_DEF_SPECIAL_BODY;
1.48 paf 796: RC;
1.10 paf 797: }
798: break;
1.48 paf 799:
1.10 paf 800: case LS_DEF_PARAMS:
1.48 paf 801: switch(c) {
1.192 paf 802: case '$': // common error
1.193 ! paf 803: result=BAD_METHOD_PARAMETER_NAME_CHARACTER;
! 804: goto break2;
1.48 paf 805: case ';':
806: RC;
807: case ']':
1.114 paf 808: PC.ls=*PC.source=='['?LS_DEF_LOCALS:LS_DEF_COMMENT;
1.48 paf 809: RC;
1.49 paf 810: case '\n': // wrong. bailing out
1.10 paf 811: pop_LS(PC);
1.48 paf 812: RC;
1.10 paf 813: }
814: break;
1.48 paf 815:
1.10 paf 816: case LS_DEF_LOCALS:
1.48 paf 817: switch(c) {
818: case '[':
819: case ';':
820: RC;
821: case ']':
1.114 paf 822: PC.ls=LS_DEF_COMMENT;
1.48 paf 823: RC;
824: case '\n': // wrong. bailing out
1.10 paf 825: pop_LS(PC);
1.48 paf 826: RC;
1.10 paf 827: }
828: break;
1.48 paf 829:
1.10 paf 830: case LS_DEF_COMMENT:
831: if(c=='\n') {
832: pop_LS(PC);
1.48 paf 833: RC;
1.37 paf 834: }
835: break;
836:
1.48 paf 837: case LS_DEF_SPECIAL_BODY:
1.175 paf 838: if(c=='\n')
1.48 paf 839: RC;
840: break;
841:
842: // (EXPRESSION)
1.69 paf 843: case LS_VAR_ROUND:
844: case LS_METHOD_ROUND:
1.48 paf 845: switch(c) {
846: case ')':
847: if(--lexical_brackets_nestage==0)
1.114 paf 848: if(PC.ls==LS_METHOD_ROUND) // method round param ended
849: PC.ls=LS_METHOD_AFTER; // look for method end
850: else // PC.ls==LS_VAR_ROUND // variable constructor ended
1.69 paf 851: pop_LS(PC); // return to normal life
1.48 paf 852: RC;
853: case '$':
1.166 parser 854: push_LS(PC, LS_EXPRESSION_VAR_NAME_WITH_COLON);
1.48 paf 855: RC;
856: case '^':
857: push_LS(PC, LS_METHOD_NAME);
858: RC;
859: case '(':
860: lexical_brackets_nestage++;
861: RC;
1.67 paf 862: case '-':
1.127 paf 863: switch(*PC.source) {
864: case 'f': // -f
1.67 paf 865: skip_analized=1;
866: result=FEXISTS;
1.127 paf 867: goto break2;
868: case 'd': // -d
869: skip_analized=1;
870: result=DEXISTS;
871: goto break2;
1.191 paf 872: default: // minus
1.67 paf 873: result=c;
1.127 paf 874: goto break2;
875: }
1.67 paf 876: goto break2;
1.173 paf 877: case '+': case '*': case '/': case '%': case '\\':
1.58 paf 878: case '~':
1.48 paf 879: case ';':
880: RC;
1.193 ! paf 881: //case '#': // comment start
! 882: case '&': case '|':
1.114 paf 883: if(*PC.source==c) { // && ||
1.193 ! paf 884: result=c=='&'?LAND:LOR;
1.67 paf 885: skip_analized=1;
1.58 paf 886: } else
887: result=c;
888: goto break2;
1.193 ! paf 889: case '!':
! 890: switch(PC.source[0]) {
! 891: case '|': // !| !||
! 892: skip_analized=1;
! 893: if(PC.source[1]=='|') {
! 894: skip_analized++;
! 895: result=LXOR;
! 896: } else
! 897: result=NXOR;
! 898: goto break2;
! 899: case '=': // !=
! 900: skip_analized=1;
! 901: result=NNE;
! 902: goto break2;
! 903: }
! 904: RC;
! 905: case '<': case '>': case '=':
! 906: if(*PC.source=='=') { // <= >= ==
1.67 paf 907: skip_analized=1;
1.58 paf 908: switch(c) {
909: case '<': result=NLE; break;
910: case '>': result=NGE; break;
911: case '=': result=NEQ; break;
912: }
913: } else
914: result=c;
915: goto break2;
1.48 paf 916: case '"':
1.145 parser 917: push_LS(PC, LS_EXPRESSION_STRING_QUOTED);
918: RC;
919: case '\'':
920: push_LS(PC, LS_EXPRESSION_STRING_APOSTROFED);
1.48 paf 921: RC;
1.50 paf 922: case 'l': case 'g': case 'e': case 'n':
1.51 paf 923: if(end==begin) // right after whitespace
1.117 paf 924: if(isspace(PC.source[1])) {
925: switch(*PC.source) {
926: // case '?': // ok [and bad cases, yacc would bark at them]
927: case 't': // lt gt [et nt]
928: result=c=='l'?SLT:c=='g'?SGT:BAD_STRING_COMPARISON_OPERATOR;
929: skip_analized=1;
930: goto break2;
931: case 'e': // le ge ne [ee]
932: result=c=='l'?SLE:c=='g'?SGE:c=='n'?SNE:BAD_STRING_COMPARISON_OPERATOR;
933: skip_analized=1;
934: goto break2;
935: case 'q': // eq [lq gq nq]
936: result=c=='e'?SEQ:BAD_STRING_COMPARISON_OPERATOR;
937: skip_analized=1;
938: goto break2;
939: }
1.67 paf 940: }
941: break;
942: case 'i':
943: if(end==begin) // right after whitespace
1.117 paf 944: if(isspace(PC.source[1])) {
945: switch(PC.source[0]) {
946: case 'n': // in
1.95 paf 947: skip_analized=1;
948: result=IN;
949: goto break2;
1.117 paf 950: case 's': // is
1.95 paf 951: skip_analized=1;
952: result=IS;
953: goto break2;
954: }
1.67 paf 955: }
956: break;
957: case 'd':
958: if(end==begin) // right after whitespace
1.114 paf 959: if(PC.source[0]=='e' && PC.source[1]=='f') { // def
1.67 paf 960: skip_analized=2;
961: result=DEF;
1.58 paf 962: goto break2;
1.50 paf 963: }
1.48 paf 964: break;
965: case ' ': case '\t': case '\n':
1.63 paf 966: if(end!=begin) { // there were a string after previous operator?
967: result=0; // return that string
968: goto break2;
1.48 paf 969: }
1.63 paf 970: // that's a leading|traling space or after-operator-space
971: // ignoring it
972: // reset piece 'begin' position & line
1.114 paf 973: begin=PC.source; // after whitespace char
974: begin_line=PC.line;
1.48 paf 975: continue;
1.1 paf 976: }
977: break;
978:
1.10 paf 979: // VARIABLE GET/PUT/WITH
1.166 parser 980: case LS_VAR_NAME_SIMPLE_WITH_COLON:
981: case LS_VAR_NAME_SIMPLE_WITHOUT_COLON:
982: case LS_EXPRESSION_VAR_NAME_WITH_COLON:
983: case LS_EXPRESSION_VAR_NAME_WITHOUT_COLON:
984: if(
985: PC.ls==LS_EXPRESSION_VAR_NAME_WITH_COLON ||
986: PC.ls==LS_EXPRESSION_VAR_NAME_WITHOUT_COLON) {
1.181 paf 987: // name in expr ends also before
1.48 paf 988: switch(c) {
1.181 paf 989: // expression minus
1.92 paf 990: case '-':
1.181 paf 991: // expression integer division
992: case '\\':
1.48 paf 993: pop_LS(PC);
1.114 paf 994: PC.source--; if(--PC.col<0) { PC.line--; PC.col=-1; }
1.48 paf 995: result=EON;
996: goto break2;
997: }
998: }
1.166 parser 999: if(
1000: PC.ls==LS_VAR_NAME_SIMPLE_WITHOUT_COLON ||
1001: PC.ls==LS_EXPRESSION_VAR_NAME_WITHOUT_COLON) {
1.142 parser 1002: // name already has ':', stop before next
1003: switch(c) {
1004: case ':':
1005: pop_LS(PC);
1006: PC.source--; if(--PC.col<0) { PC.line--; PC.col=-1; }
1007: result=EON;
1008: goto break2;
1009: }
1010: }
1.48 paf 1011: switch(c) {
1012: case 0:
1013: case ' ': case '\t': case '\n':
1014: case ';':
1.126 paf 1015: case ']': case '}': case ')':
1016: case '"': case '\'':
1.139 parser 1017: case '<': case '>': // these stand for HTML brackets AND expression binary ops
1.92 paf 1018: case '+': case '*': case '/': case '%':
1019: case '&': case '|':
1020: case '=': case '!':
1.99 paf 1021: // common delimiters
1.190 paf 1022: case ',': case '?': case '#':
1.139 parser 1023: // before call
1024: case '^':
1.1 paf 1025: pop_LS(PC);
1.114 paf 1026: PC.source--; if(--PC.col<0) { PC.line--; PC.col=-1; }
1.13 paf 1027: result=EON;
1.1 paf 1028: goto break2;
1.48 paf 1029: case '[':
1.162 parser 1030: // $name.<[>code]
1031: if(PC.col>1/*not first column*/ && (
1.163 parser 1032: end[-1]=='$'/*was start of get*/ ||
1033: end[-1]==':'/*was class name delim */ ||
1034: end[-1]=='.'/*was name delim */
1.162 parser 1035: )) {
1.166 parser 1036: push_LS(PC, LS_NAME_SQUARE_PART);
1.162 parser 1037: lexical_brackets_nestage=1;
1038: RC;
1039: }
1.114 paf 1040: PC.ls=LS_VAR_SQUARE;
1.1 paf 1041: lexical_brackets_nestage=1;
1.48 paf 1042: RC;
1043: case '{':
1044: if(begin==end) { // ${name}, no need of EON, switching LS
1.114 paf 1045: PC.ls=LS_VAR_NAME_CURLY;
1.48 paf 1046: } else {
1.114 paf 1047: PC.ls=LS_VAR_CURLY;
1.48 paf 1048: lexical_brackets_nestage=1;
1049: }
1.69 paf 1050:
1.48 paf 1051: RC;
1052: case '(':
1.114 paf 1053: PC.ls=LS_VAR_ROUND;
1.1 paf 1054: lexical_brackets_nestage=1;
1.48 paf 1055: RC;
1056: case '.': // name part delim
1057: case '$': // name part subvar
1.160 parser 1058: case ':': // class<:>name
1.166 parser 1059: // go to _WITHOUT_COLON state variant...
1060: if(PC.ls==LS_VAR_NAME_SIMPLE_WITH_COLON)
1061: PC.ls=LS_VAR_NAME_SIMPLE_WITHOUT_COLON;
1062: else if(PC.ls==LS_EXPRESSION_VAR_NAME_WITH_COLON)
1063: PC.ls=LS_EXPRESSION_VAR_NAME_WITHOUT_COLON;
1064: // ...stop before next ':'
1.48 paf 1065: RC;
1.1 paf 1066: }
1067: break;
1.48 paf 1068:
1.1 paf 1069: case LS_VAR_NAME_CURLY:
1.48 paf 1070: switch(c) {
1.162 parser 1071: case '[':
1.166 parser 1072: // ${name.<[>code]}
1073: push_LS(PC, LS_NAME_SQUARE_PART);
1.160 parser 1074: lexical_brackets_nestage=1;
1075: RC;
1.48 paf 1076: case '}': // ${name} finished, restoring LS
1.1 paf 1077: pop_LS(PC);
1.48 paf 1078: RC;
1079: case '.': // name part delim
1080: case '$': // name part subvar
1081: case ':': // ':name' or 'class:name'
1082: RC;
1.1 paf 1083: }
1084: break;
1.48 paf 1085:
1086: case LS_VAR_SQUARE:
1087: switch(c) {
1088: case '$':
1.166 parser 1089: push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1090: RC;
1091: case '^':
1.10 paf 1092: push_LS(PC, LS_METHOD_NAME);
1.48 paf 1093: RC;
1094: case ']':
1.1 paf 1095: if(--lexical_brackets_nestage==0) {
1096: pop_LS(PC);
1.48 paf 1097: RC;
1.1 paf 1098: }
1.48 paf 1099: break;
1100: case ';': // operator_or_fmt;value delim
1101: RC;
1102: case '[':
1103: lexical_brackets_nestage++;
1104: break;
1.1 paf 1105: }
1106: break;
1.48 paf 1107:
1.1 paf 1108: case LS_VAR_CURLY:
1.48 paf 1109: switch(c) {
1110: case '$':
1.166 parser 1111: push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1112: RC;
1113: case '^':
1.10 paf 1114: push_LS(PC, LS_METHOD_NAME);
1.48 paf 1115: RC;
1116: case '}':
1.1 paf 1117: if(--lexical_brackets_nestage==0) {
1118: pop_LS(PC);
1.48 paf 1119: RC;
1.1 paf 1120: }
1.48 paf 1121: break;
1122: case '{':
1.1 paf 1123: lexical_brackets_nestage++;
1.48 paf 1124: break;
1125: }
1.1 paf 1126: break;
1127:
1.10 paf 1128: // METHOD CALL
1.1 paf 1129: case LS_METHOD_NAME:
1.48 paf 1130: switch(c) {
1131: case '[':
1.166 parser 1132: // ^name.<[>code].xxx
1.162 parser 1133: if(PC.col>1/*not first column*/ && (
1.163 parser 1134: end[-1]=='^'/*was start of call*/ || // never, ^[ is literal...
1135: end[-1]==':'/*was class name delim */ ||
1136: end[-1]=='.'/*was name delim */
1.162 parser 1137: )) {
1.166 parser 1138: push_LS(PC, LS_NAME_SQUARE_PART);
1.162 parser 1139: lexical_brackets_nestage=1;
1140: RC;
1141: }
1.114 paf 1142: PC.ls=LS_METHOD_SQUARE;
1.1 paf 1143: lexical_brackets_nestage=1;
1.48 paf 1144: RC;
1145: case '{':
1.114 paf 1146: PC.ls=LS_METHOD_CURLY;
1.1 paf 1147: lexical_brackets_nestage=1;
1.48 paf 1148: RC;
1.69 paf 1149: case '(':
1.114 paf 1150: PC.ls=LS_METHOD_ROUND;
1.69 paf 1151: lexical_brackets_nestage=1;
1152: RC;
1.48 paf 1153: case '.': // name part delim
1154: case '$': // name part subvar
1155: case ':': // ':name' or 'class:name'
1.170 parser 1156: case '^': // ^abc^xxx wrong. bailing out
1157: case ']': case '}': case ')': // ^abc]}) wrong. bailing out
1.48 paf 1158: RC;
1.1 paf 1159: }
1160: break;
1.48 paf 1161:
1162: case LS_METHOD_SQUARE:
1163: switch(c) {
1164: case '$':
1.166 parser 1165: push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1166: RC;
1167: case '^':
1.10 paf 1168: push_LS(PC, LS_METHOD_NAME);
1.48 paf 1169: RC;
1170: case ';': // param delim
1171: RC;
1172: case ']':
1.1 paf 1173: if(--lexical_brackets_nestage==0) {
1.114 paf 1174: PC.ls=LS_METHOD_AFTER;
1.48 paf 1175: RC;
1.1 paf 1176: }
1.48 paf 1177: break;
1178: case '[':
1.1 paf 1179: lexical_brackets_nestage++;
1.48 paf 1180: break;
1181: }
1.1 paf 1182: break;
1.48 paf 1183:
1.1 paf 1184: case LS_METHOD_CURLY:
1.48 paf 1185: switch(c) {
1186: case '$':
1.166 parser 1187: push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1188: RC;
1189: case '^':
1.10 paf 1190: push_LS(PC, LS_METHOD_NAME);
1.94 paf 1191: RC;
1192: case ';': // param delim
1.48 paf 1193: RC;
1194: case '}':
1.1 paf 1195: if(--lexical_brackets_nestage==0) {
1.114 paf 1196: PC.ls=LS_METHOD_AFTER;
1.48 paf 1197: RC;
1.1 paf 1198: }
1.48 paf 1199: break;
1200: case '{':
1.1 paf 1201: lexical_brackets_nestage++;
1.48 paf 1202: break;
1203: }
1.1 paf 1204: break;
1.48 paf 1205:
1.1 paf 1206: case LS_METHOD_AFTER:
1.69 paf 1207: if(c=='[') {/* ][ }[ )[ */
1.114 paf 1208: PC.ls=LS_METHOD_SQUARE;
1.1 paf 1209: lexical_brackets_nestage=1;
1.48 paf 1210: RC;
1.1 paf 1211: }
1.69 paf 1212: if(c=='{') {/* ]{ }{ ){ */
1.114 paf 1213: PC.ls=LS_METHOD_CURLY;
1.69 paf 1214: lexical_brackets_nestage=1;
1215: RC;
1216: }
1217: if(c=='(') {/* ]( }( )( */
1.114 paf 1218: PC.ls=LS_METHOD_ROUND;
1.1 paf 1219: lexical_brackets_nestage=1;
1.48 paf 1220: RC;
1.1 paf 1221: }
1222: pop_LS(PC);
1.114 paf 1223: PC.source--; if(--PC.col<0) { PC.line--; PC.col=-1; }
1.13 paf 1224: result=EON;
1.1 paf 1225: goto break2;
1226: }
1.9 paf 1227: if(c==0) {
1.1 paf 1228: result=-1;
1229: break;
1230: }
1231: }
1232:
1233: break2:
1.59 paf 1234: if(end!=begin) { // there is last piece?
1235: if((c=='@' || c==0) && end[-1]=='\n') { // we are before LS_DEF_NAME or EOF?
1236: // strip last \n
1.10 paf 1237: end--;
1.137 parser 1238: if(end!=begin && end[-1]=='\n') // allow one empty line before LS_DEF_NAME
1239: end--;
1.59 paf 1240: }
1.133 parser 1241: if(end!=begin && PC.ls!=LS_COMMENT) { // last piece still alive and not comment?
1.59 paf 1242: // append it
1.121 paf 1243: PC.string->APPEND_CLEAN(begin, end-begin, PC.file, begin_line/*, start_col*/);
1.30 paf 1244: }
1.59 paf 1245: }
1.114 paf 1246: if(PC.string->size()) { // something accumulated?
1.17 paf 1247: // create STRING value: array of OP_VALUE+vstring
1.114 paf 1248: *lvalp=VL(NEW VString(*PC.string));
1.10 paf 1249: // new pieces storage
1.114 paf 1250: PC.string=NEW String(POOL);
1.58 paf 1251: // make current result be pending for next call, return STRING for now
1.114 paf 1252: PC.pending_state=result; result=STRING;
1.58 paf 1253: }
1.67 paf 1254: if(skip_analized) {
1.114 paf 1255: PC.source+=skip_analized; PC.col+=skip_analized;
1.1 paf 1256: }
1.58 paf 1257: return result;
1.1 paf 1258: }
1259:
1.110 paf 1260: static int real_yyerror(parse_control *pc, char *s) { // Called by yyparse on error
1.114 paf 1261: strncpy(PC.error, s, MAX_STRING);
1.1 paf 1262: return 1;
1.110 paf 1263: }
1.1 paf 1264:
1.110 paf 1265: static void yyprint(FILE *file, int type, YYSTYPE value) {
1266: if(type==STRING)
1.120 paf 1267: fprintf(file, " \"%s\"", LA2S(value)->cstr());
1.110 paf 1268: }
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