Annotation of parser3/src/main/compile.y, revision 1.177
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:
1.176 paf 8: $Id: compile.y,v 1.175 2002/01/25 13:48:55 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
1.58 paf 63:
1.59 paf 64: %token LAND "&&"
1.58 paf 65: %token LOR "||"
1.59 paf 66: %token LXOR "##"
1.58 paf 67:
68: %token NLE "<="
69: %token NGE ">="
70: %token NEQ "=="
71: %token NNE "!="
72:
73: %token SLT "lt"
74: %token SGT "gt"
75: %token SLE "le"
76: %token SGE "ge"
77: %token SEQ "eq"
78: %token SNE "ne"
79:
1.67 paf 80: %token DEF "def"
81: %token IN "in"
82: %token FEXISTS "-f"
1.127 paf 83: %token DEXISTS "-d"
1.95 paf 84: %token IS "is"
1.67 paf 85:
1.57 paf 86: /* logical */
1.131 paf 87: %left "##"
1.57 paf 88: %left "||"
89: %left "&&"
1.131 paf 90: %left '<' '>' "<=" ">=" "lt" "gt" "le" "ge"
91: %left "==" "!=" "eq" "ne"
92: %left "is" "def" "in" "-f" "-d"
1.68 paf 93: %left '!'
1.57 paf 94:
95: /* bitwise */
1.59 paf 96: %left '#'
1.131 paf 97: %left '|'
98: %left '&'
1.68 paf 99: %left '~'
1.57 paf 100:
1.56 paf 101: /* numerical */
1.55 paf 102: %left '-' '+'
1.173 paf 103: %left '*' '/' '%' '\\'
1.56 paf 104: %left NEG /* negation: unary - */
1.1 paf 105:
106: %%
1.152 parser 107: all:
1.10 paf 108: one_big_piece {
1.75 paf 109: Method& method=*NEW Method(POOL,
1.85 paf 110: *main_method_name,
1.122 paf 111: Method::CT_ANY,
1.81 paf 112: 0, 0, /*min, max numbered_params_count*/
1.75 paf 113: 0/*param_names*/, 0/*local_names*/,
114: $1/*parser_code*/, 0/*native_code*/);
1.114 paf 115: PC.cclass->add_method(*main_method_name, method);
1.10 paf 116: }
117: | methods;
118:
119: methods: method | methods method;
120: one_big_piece: maybe_codes;
121:
1.34 paf 122: method: control_method | code_method;
123:
124: control_method: '@' STRING '\n'
1.132 paf 125: maybe_control_strings {
1.120 paf 126: const String& command=*LA2S($2);
1.34 paf 127: YYSTYPE strings_code=$4;
1.37 paf 128: if(strings_code->size()<1*2) {
1.114 paf 129: strcpy(PC.error, "@");
130: strcat(PC.error, command.cstr());
131: strcat(PC.error, " is empty");
1.37 paf 132: YYERROR;
133: }
1.74 paf 134: if(command==CLASS_NAME) {
1.146 parser 135: if(PC.cclass->base()) { // already changed from default?
1.114 paf 136: strcpy(PC.error, "class already have a name '");
137: strncat(PC.error, PC.cclass->name().cstr(), 100);
138: strcat(PC.error, "'");
1.73 paf 139: YYERROR;
140: }
141: if(strings_code->size()==1*2) {
142: // new class' name
1.120 paf 143: const String *name=LA2S(strings_code);
1.73 paf 144: // creating the class
1.114 paf 145: PC.cclass=NEW VClass(POOL);
146: PC.cclass->set_name(*name);
1.73 paf 147: // append to request's classes
1.114 paf 148: PC.request->classes().put(*name, PC.cclass);
1.73 paf 149: } else {
1.114 paf 150: strcpy(PC.error, "@"CLASS_NAME" must contain sole name");
1.34 paf 151: YYERROR;
152: }
1.130 paf 153: } else if(command==USE_CONTROL_METHOD_NAME) {
154: for(int i=0; i<strings_code->size(); i+=2)
1.159 parser 155: PC.request->use_file(*LA2S(strings_code, i));
1.130 paf 156: } else if(command==BASE_NAME) {
1.146 parser 157: if(PC.cclass->base()) { // already changed from default?
1.130 paf 158: strcpy(PC.error, "class already have a base '");
159: strncat(PC.error, PC.cclass->base()->name().cstr(), 100);
160: strcat(PC.error, "'");
161: YYERROR;
162: }
163: if(strings_code->size()==1*2) {
164: const String& base_name=*LA2S(strings_code);
165: VClass *base=static_cast<VClass *>(
166: PC.request->classes().get(base_name));
167: if(!base) {
168: strcpy(PC.error, base_name.cstr());
169: strcat(PC.error, ": undefined class in @"BASE_NAME);
1.73 paf 170: YYERROR;
171: }
1.130 paf 172: // @CLASS == @BASE sanity check
173: if(PC.cclass==base) {
174: strcpy(PC.error, "@"CLASS_NAME" equals @"BASE_NAME);
1.45 paf 175: YYERROR;
1.34 paf 176: }
1.130 paf 177: PC.cclass->set_base(*base);
1.34 paf 178: } else {
1.130 paf 179: strcpy(PC.error, "@"BASE_NAME" must contain sole name");
1.34 paf 180: YYERROR;
181: }
1.130 paf 182: } else {
183: strcpy(PC.error, "'");
184: strncat(PC.error, command.cstr(), MAX_STRING/2);
185: strcat(PC.error, "' invalid special name. valid names are "
186: "'"CLASS_NAME"', '"USE_CONTROL_METHOD_NAME"' and '"BASE_NAME"'");
187: YYERROR;
1.34 paf 188: }
189: };
1.132 paf 190: maybe_control_strings: empty | control_strings;
1.37 paf 191: control_strings: control_string | control_strings control_string { $$=$1; P($$, $2) };
192: control_string: maybe_string '\n';
193: maybe_string: empty | STRING;
1.34 paf 194:
195: code_method: '@' STRING bracketed_maybe_strings maybe_bracketed_strings maybe_comment '\n'
1.10 paf 196: maybe_codes {
1.120 paf 197: const String *name=LA2S($2);
1.10 paf 198:
199: YYSTYPE params_names_code=$3;
1.75 paf 200: Array *params_names=0;
201: if(int size=params_names_code->size()) {
202: params_names=NEW Array(POOL);
203: for(int i=0; i<size; i+=2)
1.120 paf 204: *params_names+=LA2S(params_names_code, i);
1.75 paf 205: }
1.10 paf 206:
207: YYSTYPE locals_names_code=$4;
1.75 paf 208: Array *locals_names=0;
209: if(int size=locals_names_code->size()) {
210: locals_names=NEW Array(POOL);
211: for(int i=0; i<size; i+=2)
1.120 paf 212: *locals_names+=LA2S(locals_names_code, i);
1.75 paf 213: }
1.10 paf 214:
1.76 paf 215: Method& method=*NEW Method(POOL,
216: *name,
1.122 paf 217: Method::CT_ANY,
1.81 paf 218: 0, 0/*min,max numbered_params_count*/,
1.76 paf 219: params_names, locals_names,
220: $7, 0);
1.114 paf 221: PC.cclass->add_method(*name, method);
1.8 paf 222: };
1.10 paf 223:
224: maybe_bracketed_strings: empty | bracketed_maybe_strings;
225: bracketed_maybe_strings: '[' maybe_strings ']' {$$=$2};
226: maybe_strings: empty | strings;
227: strings: STRING | strings ';' STRING { $$=$1; P($$, $3) };
228:
229: maybe_comment: empty | STRING;
1.1 paf 230:
231: /* codes */
232:
1.10 paf 233: maybe_codes: empty | codes;
234:
1.90 paf 235: codes: code | codes code { $$=$1; P($$, $2) };
1.81 paf 236: code: write_string | action;
1.149 parser 237: action: get | put | call;
1.1 paf 238:
239: /* get */
240:
1.64 paf 241: get: get_value {
242: $$=$1; /* stack: resulting value */
1.102 paf 243: O($$, OP_WRITE_VALUE); /* value=pop; wcontext.write(value) */
1.1 paf 244: };
1.163 parser 245: get_value: '$' get_name_value { $$=$2 };
1.64 paf 246: get_name_value: name_without_curly_rdive EON | name_in_curly_rdive;
1.1 paf 247: name_in_curly_rdive: '{' name_without_curly_rdive '}' { $$=$2 };
1.44 paf 248: name_without_curly_rdive:
249: name_without_curly_rdive_read
250: | name_without_curly_rdive_class;
1.19 paf 251: name_without_curly_rdive_read: name_without_curly_rdive_code {
1.25 paf 252: $$=N(POOL);
1.22 paf 253: Array *diving_code=$1;
1.120 paf 254: const String *first_name=LA2S(diving_code);
1.85 paf 255: if(first_name && *first_name==SELF_ELEMENT_NAME) {
1.54 paf 256: O($$, OP_WITH_SELF); /* stack: starting context */
1.22 paf 257: P($$, diving_code,
258: /* skip over... */
259: diving_code->size()>2?3/*OP_+string+get_element*/:2/*OP_+string*/);
260: } else {
1.54 paf 261: O($$, OP_WITH_READ); /* stack: starting context */
1.22 paf 262: P($$, diving_code);
263: }
264: /* diving code; stack: current context */
1.1 paf 265: };
1.155 parser 266: name_without_curly_rdive_class: class_prefix name_without_curly_rdive_code { $$=$1; P($$, $2) };
1.19 paf 267: name_without_curly_rdive_code: name_advance2 | name_path name_advance2 { $$=$1; P($$, $2) };
1.1 paf 268:
269: /* put */
270:
1.81 paf 271: put: '$' name_expr_wdive construct {
1.20 paf 272: $$=$2; /* stack: context,name */
1.52 paf 273: P($$, $3); /* stack: context,name,constructor_value */
1.20 paf 274: };
1.44 paf 275: name_expr_wdive:
1.157 parser 276: name_expr_wdive_root
277: | name_expr_wdive_write
1.44 paf 278: | name_expr_wdive_class;
1.157 parser 279: name_expr_wdive_root: name_expr_dive_code {
1.44 paf 280: $$=N(POOL);
1.23 paf 281: Array *diving_code=$1;
1.120 paf 282: const String *first_name=LA2S(diving_code);
1.85 paf 283: if(first_name && *first_name==SELF_ELEMENT_NAME) {
1.54 paf 284: O($$, OP_WITH_SELF); /* stack: starting context */
1.23 paf 285: P($$, diving_code,
286: /* skip over... */
287: diving_code->size()>2?3/*OP_+string+get_element*/:2/*OP_+string*/);
288: } else {
1.157 parser 289: O($$, OP_WITH_ROOT); /* stack: starting context */
1.23 paf 290: P($$, diving_code);
291: }
292: /* diving code; stack: current context */
1.156 parser 293: };
1.157 parser 294: name_expr_wdive_write: '.' name_expr_dive_code {
1.156 parser 295: $$=N(POOL);
1.157 parser 296: O($$, OP_WITH_WRITE); /* stack: starting context */
1.156 parser 297: P($$, $2); /* diving code; stack: context,name */
1.20 paf 298: };
1.155 parser 299: name_expr_wdive_class: class_prefix name_expr_dive_code { $$=$1; P($$, $2) };
1.20 paf 300:
1.149 parser 301: construct:
1.163 parser 302: construct_square
303: | construct_round
304: | construct_curly
1.149 parser 305: ;
306: construct_square: '[' any_constructor_code_value ']' {
307: // stack: context, name
308: $$=$2; // stack: context, name, value
1.81 paf 309: O($$, OP_CONSTRUCT_VALUE); /* value=pop; name=pop; context=pop; construct(context,name,value) */
310: }
311: ;
1.149 parser 312: construct_round: '(' expr_value ')' {
313: // stack: context, name
1.177 ! paf 314: $$=$2; // stack: context, name, value
1.163 parser 315: O($$, OP_CONSTRUCT_EXPR); /* value=pop->as_expr_result; name=pop; context=pop; construct(context,name,value) */
1.81 paf 316: }
1.52 paf 317: ;
1.149 parser 318: construct_curly: '{' maybe_codes '}' {
319: // stack: context, name
320: $$=N(POOL);
321: CCA($$, $2); /* code=pop; name=pop; context=pop; construct(context,name,junction(code)) */
322: };
323:
1.55 paf 324: any_constructor_code_value:
1.157 parser 325: void_value /* optimized $var[] case */
1.52 paf 326: | STRING /* optimized $var[STRING] case */
1.55 paf 327: | constructor_code_value /* $var[something complex] */
1.1 paf 328: ;
1.55 paf 329: constructor_code_value: constructor_code {
1.25 paf 330: $$=N(POOL);
1.54 paf 331: O($$, OP_CREATE_EWPOOL); /* stack: empty write context */
1.69 paf 332: P($$, $1); /* some code that writes to that context */
1.54 paf 333: O($$, OP_REDUCE_EWPOOL); /* context=pop; stack: context.value() */
1.1 paf 334: };
1.55 paf 335: constructor_code: codes__excluding_sole_str_literal;
1.27 paf 336: codes__excluding_sole_str_literal: action | code codes { $$=$1; P($$, $2) };
337:
1.1 paf 338: /* call */
339:
1.66 paf 340: call: call_value {
341: $$=$1; /* stack: value */
1.102 paf 342: O($$, OP_WRITE_VALUE); /* value=pop; wcontext.write(value) */
1.66 paf 343: };
1.177 ! paf 344: call_value: '^' {
! 345: PC.object_constructor_allowed=true;
! 346: push_OCA(PC, true);
! 347: }
! 348: call_name {
! 349: PC.object_constructor_allowed=false;
! 350: pop_OCA(PC);
! 351: }
1.154 parser 352: store_params EON { /* ^field.$method{vasya} */
353: $$=$3; /* with_xxx,diving code; stack: context,method_junction */
1.54 paf 354: O($$, OP_GET_METHOD_FRAME); /* stack: context,method_frame */
1.123 paf 355:
1.154 parser 356: YYSTYPE params_code=$5;
1.140 parser 357: if(params_code->size()==3) // probably [] case. [OP_VALUE + Void + STORE_PARAM]
1.123 paf 358: if(Value *value=LA2V(params_code)) // it is OP_VALUE + value?
1.140 parser 359: if(!value->is_defined()) // value is VVoid?
1.123 paf 360: params_code=0; // ^zzz[] case. don't append lone empty param.
361: if(params_code)
362: P($$, params_code); // filling method_frame.store_params
1.155 parser 363: O($$, OP_CALL); // method_frame=pop; ncontext=pop; call(ncontext,method_frame) stack: value
1.1 paf 364: };
365:
1.43 paf 366: call_name: name_without_curly_rdive;
1.38 paf 367:
1.9 paf 368: store_params: store_param | store_params store_param { $$=$1; P($$, $2) };
1.69 paf 369: store_param:
370: store_square_param
371: | store_round_param
372: | store_curly_param
1.31 paf 373: ;
1.123 paf 374: store_square_param: '[' store_code_param_parts ']' {$$=$2};
1.69 paf 375: store_round_param: '(' store_expr_param_parts ')' {$$=$2};
1.94 paf 376: store_curly_param: '{' store_curly_param_parts '}' {$$=$2};
1.69 paf 377: store_code_param_parts:
378: store_code_param_part
379: | store_code_param_parts ';' store_code_param_part { $$=$1; P($$, $3) }
380: ;
381: store_expr_param_parts:
382: store_expr_param_part
383: | store_expr_param_parts ';' store_expr_param_part { $$=$1; P($$, $3) }
384: ;
1.94 paf 385: store_curly_param_parts:
386: store_curly_param_part
387: | store_curly_param_parts ';' store_curly_param_part { $$=$1; P($$, $3) }
388: ;
1.120 paf 389: store_code_param_part: code_param_value {
1.32 paf 390: $$=$1;
1.54 paf 391: O($$, OP_STORE_PARAM);
1.120 paf 392: };
1.69 paf 393: store_expr_param_part: write_expr_value {
394: $$=N(POOL);
1.103 paf 395: PEA($$, $1);
1.69 paf 396: };
1.94 paf 397: store_curly_param_part: maybe_codes {
398: $$=N(POOL);
399: PCA($$, $1);
400: };
1.120 paf 401: code_param_value:
1.157 parser 402: void_value /* optimized [;...] case */
1.120 paf 403: | STRING /* optimized [STRING] case */
404: | constructor_code_value /* [something complex] */
405: ;
1.90 paf 406: write_expr_value: expr_value {
1.69 paf 407: $$=$1;
1.102 paf 408: O($$, OP_WRITE_EXPR_RESULT);
1.69 paf 409: };
1.1 paf 410:
411: /* name */
412:
1.20 paf 413: name_expr_dive_code: name_expr_value | name_path name_expr_value { $$=$1; P($$, $2) };
1.1 paf 414:
1.9 paf 415: name_path: name_step | name_path name_step { $$=$1; P($$, $2) };
1.1 paf 416: name_step: name_advance1 '.';
417: name_advance1: name_expr_value {
1.177 ! paf 418: // we know that name_advance1 not called from ^xxx context
! 419: // so we'll not check for operator call possibility as we do in name_advance2
! 420:
1.1 paf 421: /* stack: context */
422: $$=$1; /* stack: context,name */
1.54 paf 423: O($$, OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */
1.1 paf 424: };
425: name_advance2: name_expr_value {
426: /* stack: context */
427: $$=$1; /* stack: context,name */
1.177 ! paf 428: O($$, PC.operator_call_allowed?OP_GET_ELEMENT_OR_OPERATOR:OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */
! 429: // only ^FIRST.part.allowed.to.be.an.operator
! 430: PC.operator_call_allowed=false;
1.1 paf 431: }
1.4 paf 432: | STRING BOGUS
1.1 paf 433: ;
434: name_expr_value:
1.4 paf 435: STRING /* subname_is_const */
1.1 paf 436: | name_expr_subvar_value /* $subname_is_var_value */
1.160 parser 437: | name_expr_with_subvar_value /* xxx$part_of_subname_is_var_value */
1.166 parser 438: | name_square_code_value /* [codes] */
1.1 paf 439: ;
440: name_expr_subvar_value: '$' subvar_ref_name_rdive {
441: $$=$2;
1.54 paf 442: O($$, OP_GET_ELEMENT);
1.1 paf 443: };
1.4 paf 444: name_expr_with_subvar_value: STRING subvar_get_writes {
1.25 paf 445: $$=N(POOL);
1.54 paf 446: O($$, OP_CREATE_EWPOOL);
1.9 paf 447: P($$, $1);
1.102 paf 448: O($$, OP_WRITE_VALUE);
1.9 paf 449: P($$, $2);
1.54 paf 450: O($$, OP_REDUCE_EWPOOL);
1.1 paf 451: };
1.166 parser 452: name_square_code_value: '[' codes ']' {
1.160 parser 453: $$=N(POOL);
454: O($$, OP_CREATE_EWPOOL);
455: P($$, $2);
456: O($$, OP_REDUCE_EWPOOL);
457: };
1.154 parser 458: subvar_ref_name_rdive: STRING {
1.25 paf 459: $$=N(POOL);
1.54 paf 460: O($$, OP_WITH_READ);
1.9 paf 461: P($$, $1);
1.1 paf 462: };
1.9 paf 463: subvar_get_writes: subvar__get_write | subvar_get_writes subvar__get_write { $$=$1; P($$, $2) };
1.1 paf 464: subvar__get_write: '$' subvar_ref_name_rdive {
465: $$=$2;
1.54 paf 466: O($$, OP_GET_ELEMENT__WRITE);
1.42 paf 467: };
468:
1.154 parser 469: class_prefix:
470: class_static_prefix
471: | class_constructor_prefix
472: ;
1.155 parser 473: class_static_prefix: STRING ':' {
474: $$=$1; // stack: class name string
475: O($$, OP_GET_CLASS);
476: };
477: class_constructor_prefix: class_static_prefix ':' {
1.154 parser 478: $$=$1;
479: if(!PC.object_constructor_allowed) {
480: strcpy(PC.error, ":: not allowed here");
481: YYERROR;
482: }
1.155 parser 483: O($$, OP_PREPARE_TO_CONSTRUCT_OBJECT);
1.1 paf 484: };
485:
1.53 paf 486:
1.56 paf 487: /* expr */
1.53 paf 488:
1.81 paf 489: expr_value: expr {
490: if(($$=$1)->size()==2) // only one string literal in there?
1.62 paf 491: change_string_literal_to_double_literal($$); // make that string literal Double
492: };
1.56 paf 493: expr:
1.62 paf 494: STRING
1.64 paf 495: | get_value
1.66 paf 496: | call_value
1.64 paf 497: | '"' string_inside_quotes_value '"' { $$ = $2; }
1.145 parser 498: | '\'' string_inside_quotes_value '\'' { $$ = $2; }
1.60 paf 499: | '(' expr ')' { $$ = $2; }
500: /* stack: operand // stack: @operand */
501: | '-' expr %prec NEG { $$=$2; O($$, OP_NEG) }
1.166 parser 502: | '+' expr %prec NEG { $$=$2 }
1.68 paf 503: | '~' expr { $$=$2; O($$, OP_INV) }
504: | '!' expr { $$=$2; O($$, OP_NOT) }
505: | "def" expr { $$=$2; O($$, OP_DEF) }
506: | "in" expr { $$=$2; O($$, OP_IN) }
507: | "-f" expr { $$=$2; O($$, OP_FEXISTS) }
1.127 paf 508: | "-d" expr { $$=$2; O($$, OP_DEXISTS) }
1.60 paf 509: /* stack: a,b // stack: a@b */
510: | expr '-' expr { $$=$1; P($$, $3); O($$, OP_SUB) }
511: | expr '+' expr { $$=$1; P($$, $3); O($$, OP_ADD) }
512: | expr '*' expr { $$=$1; P($$, $3); O($$, OP_MUL) }
513: | expr '/' expr { $$=$1; P($$, $3); O($$, OP_DIV) }
514: | expr '%' expr { $$=$1; P($$, $3); O($$, OP_MOD) }
1.173 paf 515: | expr '\\' expr { $$=$1; P($$, $3); O($$, OP_INTDIV) }
1.60 paf 516: | expr '&' expr { $$=$1; P($$, $3); O($$, OP_BIN_AND) }
517: | expr '|' expr { $$=$1; P($$, $3); O($$, OP_BIN_OR) }
518: | expr '#' expr { $$=$1; P($$, $3); O($$, OP_BIN_XOR) }
1.174 paf 519: | expr "&&" expr { $$=$1; PNC($$, $3); O($$, OP_LOG_AND) }
520: | expr "||" expr { $$=$1; PNC($$, $3); O($$, OP_LOG_OR) }
1.60 paf 521: | expr "##" expr { $$=$1; P($$, $3); O($$, OP_LOG_XOR) }
522: | expr '<' expr { $$=$1; P($$, $3); O($$, OP_NUM_LT) }
523: | expr '>' expr { $$=$1; P($$, $3); O($$, OP_NUM_GT) }
524: | expr "<=" expr { $$=$1; P($$, $3); O($$, OP_NUM_LE) }
525: | expr ">=" expr { $$=$1; P($$, $3); O($$, OP_NUM_GE) }
526: | expr "==" expr { $$=$1; P($$, $3); O($$, OP_NUM_EQ) }
527: | expr "!=" expr { $$=$1; P($$, $3); O($$, OP_NUM_NE) }
1.61 paf 528: | expr "lt" expr { $$=$1; P($$, $3); O($$, OP_STR_LT) }
529: | expr "gt" expr { $$=$1; P($$, $3); O($$, OP_STR_GT) }
530: | expr "le" expr { $$=$1; P($$, $3); O($$, OP_STR_LE) }
531: | expr "ge" expr { $$=$1; P($$, $3); O($$, OP_STR_GE) }
532: | expr "eq" expr { $$=$1; P($$, $3); O($$, OP_STR_EQ) }
533: | expr "ne" expr { $$=$1; P($$, $3); O($$, OP_STR_NE) }
1.95 paf 534: | expr "is" expr { $$=$1; P($$, $3); O($$, OP_IS) }
1.56 paf 535: ;
1.55 paf 536:
1.65 paf 537: string_inside_quotes_value: maybe_codes {
1.64 paf 538: $$=N(POOL);
539: O($$, OP_CREATE_SWPOOL); /* stack: empty write context */
1.69 paf 540: P($$, $1); /* some code that writes to that context */
1.64 paf 541: O($$, OP_REDUCE_SWPOOL); /* context=pop; stack: context.get_string() */
1.53 paf 542: };
1.1 paf 543:
1.27 paf 544: /* basics */
1.1 paf 545:
1.81 paf 546: write_string: STRING {
1.102 paf 547: // optimized from OP_STRING+OP_WRITE_VALUE to OP_STRING__WRITE
1.84 paf 548: change_string_literal_to_write_string_literal($$=$1)
1.54 paf 549: };
550:
1.157 parser 551: void_value: /* empty */ { $$=VL(NEW VVoid(POOL)) };
1.25 paf 552: empty: /* empty */ { $$=N(POOL) };
1.1 paf 553:
554: %%
1.105 paf 555: #endif
1.1 paf 556:
557: /*
558: 000$111(2222)00
559: 000$111{3333}00
1.9 paf 560: $,^: push,=0
1.1 paf 561: 1:( { break=pop
562: 2:( ) pop
563: 3:{ } pop
564:
565: 000^111(2222)4444{33333}4000
1.9 paf 566: $,^: push,=0
1.1 paf 567: 1:( { break=pop
568: 2:( )=4
569: 3:{ }=4
570: 4:[^({]=pop
571: */
572:
1.110 paf 573: static int yylex(YYSTYPE *lvalp, void *pc) {
1.177 ! paf 574: #define lexical_brackets_nestage PC.brackets_nestages[PC.ls_sp]
1.48 paf 575: #define RC {result=c; goto break2; }
1.1 paf 576:
577: register int c;
578: int result;
579:
1.114 paf 580: if(PC.pending_state) {
581: result=PC.pending_state;
582: PC.pending_state=0;
1.1 paf 583: return result;
584: }
585:
1.114 paf 586: const char *begin=PC.source;
1.91 paf 587: const char *end;
1.114 paf 588: int begin_line=PC.line;
1.67 paf 589: int skip_analized=0;
1.50 paf 590: while(true) {
1.114 paf 591: c=*(end=(PC.source++));
1.166 parser 592: // fprintf(stderr, "\nchar: %c %02X; nestage: %d, sp=%d", c, c, lexical_brackets_nestage, PC.sp);
1.1 paf 593:
1.4 paf 594: if(c=='\n') {
1.114 paf 595: PC.line++;
596: PC.col=0;
1.10 paf 597: } else
1.114 paf 598: PC.col++;
1.73 paf 599:
1.171 parser 600: if(c=='@' && PC.col==0+1) {
1.175 paf 601: if(PC.ls==LS_DEF_SPECIAL_BODY) {
602: // @SPECIAL
603: // ...
604: // @<here =
605: pop_LS(PC); // exiting from LS_DEF_SPECIAL_BODY state
606: } // continuing checks
1.171 parser 607: if(PC.ls==LS_USER) {
608: push_LS(PC, LS_DEF_NAME);
609: RC;
1.175 paf 610: } else // @ in first column inside some code [when could that be?]
1.171 parser 611: result=BAD_METHOD_DECL_START;
612: goto break2;
613: } else if(c=='^')
1.169 parser 614: switch(PC.ls) {
615: case LS_EXPRESSION_VAR_NAME_WITH_COLON:
616: case LS_EXPRESSION_VAR_NAME_WITHOUT_COLON:
617: case LS_VAR_NAME_SIMPLE_WITH_COLON:
618: case LS_VAR_NAME_SIMPLE_WITHOUT_COLON:
619: case LS_VAR_NAME_CURLY:
620: case LS_METHOD_NAME:
621: case LS_COMMENT:
622: case LS_DEF_COMMENT:
623: // no literals in names, please
624: break;
625: default:
1.114 paf 626: switch(*PC.source) {
1.165 parser 627: // ^escaping some punctuators
1.48 paf 628: case '^': case '$': case ';':
1.126 paf 629: case '(': case ')':
1.48 paf 630: case '[': case ']':
631: case '{': case '}':
1.172 parser 632: case '"': case ':':
1.40 paf 633: if(end!=begin) {
634: // append piece till ^
1.121 paf 635: PC.string->APPEND_CLEAN(begin, end-begin, PC.file, begin_line);
1.40 paf 636: }
1.63 paf 637: // reset piece 'begin' position & line
1.164 parser 638: end=begin=PC.source; // ^
1.114 paf 639: begin_line=PC.line;
1.164 parser 640: if(PC.ls==LS_METHOD_AFTER) {
641: pop_LS(PC);
642: result=EON;
1.165 parser 643: skip_analized=-1; // return to ^ afterwards to assure it's literality
1.164 parser 644: goto break2;
645: } else {
646: // skip over _ after ^
647: PC.source++; PC.col++;
648: // skip analysis = forced literal
649: continue;
650: }
1.114 paf 651:
652: // converting ^#HH into char(hex(HH))
653: case '#':
654: if(end!=begin) {
655: // append piece till ^
1.121 paf 656: PC.string->APPEND_CLEAN(begin, end-begin, PC.file, begin_line);
1.114 paf 657: }
658: // #HH ?
659: if(PC.source[0]=='#' && PC.source[1] && PC.source[2]) {
660: char *hex=(char *)POOL.malloc(1);
661: hex[0]=
662: hex_value[(unsigned char)PC.source[1]]*0x10+
663: hex_value[(unsigned char)PC.source[2]];
664: if(hex[0]==0) {
665: result=BAD_HEX_LITERAL;
666: goto break2; // wrong hex value[no ^#00 chars allowed]: bail out
667: }
668: // append char(hex(HH))
1.121 paf 669: PC.string->APPEND_CLEAN(hex, 1, PC.file, begin_line);
1.114 paf 670: // skip over ^#HH
671: PC.source+=3;
672: PC.col+=3;
673: // reset piece 'begin' position & line
674: begin=PC.source; // ^
675: begin_line=PC.line;
676: continue;
677: }
678: break;
1.1 paf 679: }
1.169 parser 680: break;
681: }
1.113 paf 682: // #comment start skipping
1.114 paf 683: if(c=='#' && PC.col==1) {
1.112 paf 684: if(end!=begin) {
685: // append piece till #
1.121 paf 686: PC.string->APPEND_CLEAN(begin, end-begin, PC.file, begin_line);
1.112 paf 687: }
688: // fall into COMMENT lexical state [wait for \n]
689: push_LS(PC, LS_COMMENT);
1.175 paf 690: continue;
1.112 paf 691: }
1.114 paf 692: switch(PC.ls) {
1.10 paf 693:
694: // USER'S = NOT OURS
1.1 paf 695: case LS_USER:
1.166 parser 696: case LS_NAME_SQUARE_PART: // name.[here].xxx
1.153 parser 697: if(PC.trim_bof)
698: switch(c) {
699: case '\n': case ' ': case '\t':
1.152 parser 700: begin=PC.source;
701: begin_line=PC.line;
702: continue; // skip it
1.153 parser 703: default:
704: PC.trim_bof=false;
1.152 parser 705: }
1.48 paf 706: switch(c) {
707: case '$':
1.166 parser 708: push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 709: RC;
710: case '^':
711: push_LS(PC, LS_METHOD_NAME);
712: RC;
1.166 parser 713: case ']':
714: if(PC.ls==LS_NAME_SQUARE_PART)
715: if(--lexical_brackets_nestage==0) {// $name.[co<]?>de<]?>
716: pop_LS(PC); // $name.[co<]>de<]!>
717: RC;
718: }
1.160 parser 719: break;
1.166 parser 720: case '[': // $name.[co<[>de]
721: if(PC.ls==LS_NAME_SQUARE_PART)
722: lexical_brackets_nestage++;
1.161 parser 723: break;
1.112 paf 724: }
725: break;
726:
727: // #COMMENT
728: case LS_COMMENT:
729: if(c=='\n') {
730: // skip comment
1.114 paf 731: begin=PC.source;
732: begin_line=PC.line;
1.112 paf 733:
734: pop_LS(PC);
735: continue;
1.1 paf 736: }
1.48 paf 737: break;
738:
739: // STRING IN EXPRESSION
1.145 parser 740: case LS_EXPRESSION_STRING_QUOTED:
741: case LS_EXPRESSION_STRING_APOSTROFED:
1.48 paf 742: switch(c) {
743: case '"':
1.145 parser 744: case '\'':
745: if(
746: PC.ls == LS_EXPRESSION_STRING_QUOTED && c=='"' ||
747: PC.ls == LS_EXPRESSION_STRING_APOSTROFED && c=='\'') {
748: pop_LS(PC); //"abc". | 'abc'.
749: RC;
750: }
751: break;
1.48 paf 752: case '$':
1.166 parser 753: push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 754: RC;
755: case '^':
1.10 paf 756: push_LS(PC, LS_METHOD_NAME);
1.48 paf 757: RC;
1.10 paf 758: }
759: break;
760:
761: // METHOD DEFINITION
762: case LS_DEF_NAME:
1.48 paf 763: switch(c) {
764: case '[':
1.114 paf 765: PC.ls=LS_DEF_PARAMS;
1.48 paf 766: RC;
767: case '\n':
1.114 paf 768: PC.ls=LS_DEF_SPECIAL_BODY;
1.48 paf 769: RC;
1.10 paf 770: }
771: break;
1.48 paf 772:
1.10 paf 773: case LS_DEF_PARAMS:
1.48 paf 774: switch(c) {
775: case ';':
776: RC;
777: case ']':
1.114 paf 778: PC.ls=*PC.source=='['?LS_DEF_LOCALS:LS_DEF_COMMENT;
1.48 paf 779: RC;
1.49 paf 780: case '\n': // wrong. bailing out
1.10 paf 781: pop_LS(PC);
1.48 paf 782: RC;
1.10 paf 783: }
784: break;
1.48 paf 785:
1.10 paf 786: case LS_DEF_LOCALS:
1.48 paf 787: switch(c) {
788: case '[':
789: case ';':
790: RC;
791: case ']':
1.114 paf 792: PC.ls=LS_DEF_COMMENT;
1.48 paf 793: RC;
794: case '\n': // wrong. bailing out
1.10 paf 795: pop_LS(PC);
1.48 paf 796: RC;
1.10 paf 797: }
798: break;
1.48 paf 799:
1.10 paf 800: case LS_DEF_COMMENT:
801: if(c=='\n') {
802: pop_LS(PC);
1.48 paf 803: RC;
1.37 paf 804: }
805: break;
806:
1.48 paf 807: case LS_DEF_SPECIAL_BODY:
1.175 paf 808: if(c=='\n')
1.48 paf 809: RC;
810: break;
811:
812: // (EXPRESSION)
1.69 paf 813: case LS_VAR_ROUND:
814: case LS_METHOD_ROUND:
1.48 paf 815: switch(c) {
816: case ')':
817: if(--lexical_brackets_nestage==0)
1.114 paf 818: if(PC.ls==LS_METHOD_ROUND) // method round param ended
819: PC.ls=LS_METHOD_AFTER; // look for method end
820: else // PC.ls==LS_VAR_ROUND // variable constructor ended
1.69 paf 821: pop_LS(PC); // return to normal life
1.48 paf 822: RC;
823: case '$':
1.166 parser 824: push_LS(PC, LS_EXPRESSION_VAR_NAME_WITH_COLON);
1.48 paf 825: RC;
826: case '^':
827: push_LS(PC, LS_METHOD_NAME);
828: RC;
829: case '(':
830: lexical_brackets_nestage++;
831: RC;
1.67 paf 832: case '-':
1.127 paf 833: switch(*PC.source) {
834: case 'f': // -f
1.67 paf 835: skip_analized=1;
836: result=FEXISTS;
1.127 paf 837: goto break2;
838: case 'd': // -d
839: skip_analized=1;
840: result=DEXISTS;
841: goto break2;
842: default:
1.67 paf 843: result=c;
1.127 paf 844: goto break2;
845: }
1.67 paf 846: goto break2;
1.173 paf 847: case '+': case '*': case '/': case '%': case '\\':
1.58 paf 848: case '~':
1.48 paf 849: case ';':
850: RC;
1.59 paf 851: case '&': case '|': case '#':
1.114 paf 852: if(*PC.source==c) { // && ||
1.59 paf 853: result=c=='#'?LXOR:c=='&'?LAND:LOR;
1.67 paf 854: skip_analized=1;
1.58 paf 855: } else
856: result=c;
857: goto break2;
858: case '<': case '>': case '=': case '!':
1.114 paf 859: if(*PC.source=='=') { // <= >= == !=
1.67 paf 860: skip_analized=1;
1.58 paf 861: switch(c) {
862: case '<': result=NLE; break;
863: case '>': result=NGE; break;
864: case '=': result=NEQ; break;
865: case '!': result=NNE; break;
866: }
867: } else
868: result=c;
869: goto break2;
1.48 paf 870: case '"':
1.145 parser 871: push_LS(PC, LS_EXPRESSION_STRING_QUOTED);
872: RC;
873: case '\'':
874: push_LS(PC, LS_EXPRESSION_STRING_APOSTROFED);
1.48 paf 875: RC;
1.50 paf 876: case 'l': case 'g': case 'e': case 'n':
1.51 paf 877: if(end==begin) // right after whitespace
1.117 paf 878: if(isspace(PC.source[1])) {
879: switch(*PC.source) {
880: // case '?': // ok [and bad cases, yacc would bark at them]
881: case 't': // lt gt [et nt]
882: result=c=='l'?SLT:c=='g'?SGT:BAD_STRING_COMPARISON_OPERATOR;
883: skip_analized=1;
884: goto break2;
885: case 'e': // le ge ne [ee]
886: result=c=='l'?SLE:c=='g'?SGE:c=='n'?SNE:BAD_STRING_COMPARISON_OPERATOR;
887: skip_analized=1;
888: goto break2;
889: case 'q': // eq [lq gq nq]
890: result=c=='e'?SEQ:BAD_STRING_COMPARISON_OPERATOR;
891: skip_analized=1;
892: goto break2;
893: }
1.67 paf 894: }
895: break;
896: case 'i':
897: if(end==begin) // right after whitespace
1.117 paf 898: if(isspace(PC.source[1])) {
899: switch(PC.source[0]) {
900: case 'n': // in
1.95 paf 901: skip_analized=1;
902: result=IN;
903: goto break2;
1.117 paf 904: case 's': // is
1.95 paf 905: skip_analized=1;
906: result=IS;
907: goto break2;
908: }
1.67 paf 909: }
910: break;
911: case 'd':
912: if(end==begin) // right after whitespace
1.114 paf 913: if(PC.source[0]=='e' && PC.source[1]=='f') { // def
1.67 paf 914: skip_analized=2;
915: result=DEF;
1.58 paf 916: goto break2;
1.50 paf 917: }
1.48 paf 918: break;
919: case ' ': case '\t': case '\n':
1.63 paf 920: if(end!=begin) { // there were a string after previous operator?
921: result=0; // return that string
922: goto break2;
1.48 paf 923: }
1.63 paf 924: // that's a leading|traling space or after-operator-space
925: // ignoring it
926: // reset piece 'begin' position & line
1.114 paf 927: begin=PC.source; // after whitespace char
928: begin_line=PC.line;
1.48 paf 929: continue;
1.1 paf 930: }
931: break;
932:
1.10 paf 933: // VARIABLE GET/PUT/WITH
1.166 parser 934: case LS_VAR_NAME_SIMPLE_WITH_COLON:
935: case LS_VAR_NAME_SIMPLE_WITHOUT_COLON:
936: case LS_EXPRESSION_VAR_NAME_WITH_COLON:
937: case LS_EXPRESSION_VAR_NAME_WITHOUT_COLON:
938: if(
939: PC.ls==LS_EXPRESSION_VAR_NAME_WITH_COLON ||
940: PC.ls==LS_EXPRESSION_VAR_NAME_WITHOUT_COLON) {
1.56 paf 941: // name in expr ends also before binary operators
1.48 paf 942: switch(c) {
1.92 paf 943: case '-':
1.48 paf 944: pop_LS(PC);
1.114 paf 945: PC.source--; if(--PC.col<0) { PC.line--; PC.col=-1; }
1.48 paf 946: result=EON;
947: goto break2;
948: }
949: }
1.166 parser 950: if(
951: PC.ls==LS_VAR_NAME_SIMPLE_WITHOUT_COLON ||
952: PC.ls==LS_EXPRESSION_VAR_NAME_WITHOUT_COLON) {
1.142 parser 953: // name already has ':', stop before next
954: switch(c) {
955: case ':':
956: pop_LS(PC);
957: PC.source--; if(--PC.col<0) { PC.line--; PC.col=-1; }
958: result=EON;
959: goto break2;
960: }
961: }
1.48 paf 962: switch(c) {
963: case 0:
964: case ' ': case '\t': case '\n':
965: case ';':
1.126 paf 966: case ']': case '}': case ')':
967: case '"': case '\'':
1.139 parser 968: case '<': case '>': // these stand for HTML brackets AND expression binary ops
1.92 paf 969: case '+': case '*': case '/': case '%':
970: case '&': case '|':
971: case '=': case '!':
1.99 paf 972: // common delimiters
1.158 parser 973: case ',': case '?':
1.139 parser 974: // before call
975: case '^':
1.1 paf 976: pop_LS(PC);
1.114 paf 977: PC.source--; if(--PC.col<0) { PC.line--; PC.col=-1; }
1.13 paf 978: result=EON;
1.1 paf 979: goto break2;
1.48 paf 980: case '[':
1.162 parser 981: // $name.<[>code]
982: if(PC.col>1/*not first column*/ && (
1.163 parser 983: end[-1]=='$'/*was start of get*/ ||
984: end[-1]==':'/*was class name delim */ ||
985: end[-1]=='.'/*was name delim */
1.162 parser 986: )) {
1.166 parser 987: push_LS(PC, LS_NAME_SQUARE_PART);
1.162 parser 988: lexical_brackets_nestage=1;
989: RC;
990: }
1.114 paf 991: PC.ls=LS_VAR_SQUARE;
1.1 paf 992: lexical_brackets_nestage=1;
1.48 paf 993: RC;
994: case '{':
995: if(begin==end) { // ${name}, no need of EON, switching LS
1.114 paf 996: PC.ls=LS_VAR_NAME_CURLY;
1.48 paf 997: } else {
1.114 paf 998: PC.ls=LS_VAR_CURLY;
1.48 paf 999: lexical_brackets_nestage=1;
1000: }
1.69 paf 1001:
1.48 paf 1002: RC;
1003: case '(':
1.114 paf 1004: PC.ls=LS_VAR_ROUND;
1.1 paf 1005: lexical_brackets_nestage=1;
1.48 paf 1006: RC;
1007: case '.': // name part delim
1008: case '$': // name part subvar
1.160 parser 1009: case ':': // class<:>name
1.166 parser 1010: // go to _WITHOUT_COLON state variant...
1011: if(PC.ls==LS_VAR_NAME_SIMPLE_WITH_COLON)
1012: PC.ls=LS_VAR_NAME_SIMPLE_WITHOUT_COLON;
1013: else if(PC.ls==LS_EXPRESSION_VAR_NAME_WITH_COLON)
1014: PC.ls=LS_EXPRESSION_VAR_NAME_WITHOUT_COLON;
1015: // ...stop before next ':'
1.48 paf 1016: RC;
1.1 paf 1017: }
1018: break;
1.48 paf 1019:
1.1 paf 1020: case LS_VAR_NAME_CURLY:
1.48 paf 1021: switch(c) {
1.162 parser 1022: case '[':
1.166 parser 1023: // ${name.<[>code]}
1024: push_LS(PC, LS_NAME_SQUARE_PART);
1.160 parser 1025: lexical_brackets_nestage=1;
1026: RC;
1.48 paf 1027: case '}': // ${name} finished, restoring LS
1.1 paf 1028: pop_LS(PC);
1.48 paf 1029: RC;
1030: case '.': // name part delim
1031: case '$': // name part subvar
1032: case ':': // ':name' or 'class:name'
1033: RC;
1.1 paf 1034: }
1035: break;
1.48 paf 1036:
1037: case LS_VAR_SQUARE:
1038: switch(c) {
1039: case '$':
1.166 parser 1040: push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1041: RC;
1042: case '^':
1.10 paf 1043: push_LS(PC, LS_METHOD_NAME);
1.48 paf 1044: RC;
1045: case ']':
1.1 paf 1046: if(--lexical_brackets_nestage==0) {
1047: pop_LS(PC);
1.48 paf 1048: RC;
1.1 paf 1049: }
1.48 paf 1050: break;
1051: case ';': // operator_or_fmt;value delim
1052: RC;
1053: case '[':
1054: lexical_brackets_nestage++;
1055: break;
1.1 paf 1056: }
1057: break;
1.48 paf 1058:
1.1 paf 1059: case LS_VAR_CURLY:
1.48 paf 1060: switch(c) {
1061: case '$':
1.166 parser 1062: push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1063: RC;
1064: case '^':
1.10 paf 1065: push_LS(PC, LS_METHOD_NAME);
1.48 paf 1066: RC;
1067: case '}':
1.1 paf 1068: if(--lexical_brackets_nestage==0) {
1069: pop_LS(PC);
1.48 paf 1070: RC;
1.1 paf 1071: }
1.48 paf 1072: break;
1073: case '{':
1.1 paf 1074: lexical_brackets_nestage++;
1.48 paf 1075: break;
1076: }
1.1 paf 1077: break;
1078:
1.10 paf 1079: // METHOD CALL
1.1 paf 1080: case LS_METHOD_NAME:
1.48 paf 1081: switch(c) {
1082: case '[':
1.166 parser 1083: // ^name.<[>code].xxx
1.162 parser 1084: if(PC.col>1/*not first column*/ && (
1.163 parser 1085: end[-1]=='^'/*was start of call*/ || // never, ^[ is literal...
1086: end[-1]==':'/*was class name delim */ ||
1087: end[-1]=='.'/*was name delim */
1.162 parser 1088: )) {
1.166 parser 1089: push_LS(PC, LS_NAME_SQUARE_PART);
1.162 parser 1090: lexical_brackets_nestage=1;
1091: RC;
1092: }
1.114 paf 1093: PC.ls=LS_METHOD_SQUARE;
1.1 paf 1094: lexical_brackets_nestage=1;
1.48 paf 1095: RC;
1096: case '{':
1.114 paf 1097: PC.ls=LS_METHOD_CURLY;
1.1 paf 1098: lexical_brackets_nestage=1;
1.48 paf 1099: RC;
1.69 paf 1100: case '(':
1.114 paf 1101: PC.ls=LS_METHOD_ROUND;
1.69 paf 1102: lexical_brackets_nestage=1;
1103: RC;
1.48 paf 1104: case '.': // name part delim
1105: case '$': // name part subvar
1106: case ':': // ':name' or 'class:name'
1.170 parser 1107: case '^': // ^abc^xxx wrong. bailing out
1108: case ']': case '}': case ')': // ^abc]}) wrong. bailing out
1.48 paf 1109: RC;
1.1 paf 1110: }
1111: break;
1.48 paf 1112:
1113: case LS_METHOD_SQUARE:
1114: switch(c) {
1115: case '$':
1.166 parser 1116: push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1117: RC;
1118: case '^':
1.10 paf 1119: push_LS(PC, LS_METHOD_NAME);
1.48 paf 1120: RC;
1121: case ';': // param delim
1122: RC;
1123: case ']':
1.1 paf 1124: if(--lexical_brackets_nestage==0) {
1.114 paf 1125: PC.ls=LS_METHOD_AFTER;
1.48 paf 1126: RC;
1.1 paf 1127: }
1.48 paf 1128: break;
1129: case '[':
1.1 paf 1130: lexical_brackets_nestage++;
1.48 paf 1131: break;
1132: }
1.1 paf 1133: break;
1.48 paf 1134:
1.1 paf 1135: case LS_METHOD_CURLY:
1.48 paf 1136: switch(c) {
1137: case '$':
1.166 parser 1138: push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1139: RC;
1140: case '^':
1.10 paf 1141: push_LS(PC, LS_METHOD_NAME);
1.94 paf 1142: RC;
1143: case ';': // param delim
1.48 paf 1144: RC;
1145: case '}':
1.1 paf 1146: if(--lexical_brackets_nestage==0) {
1.114 paf 1147: PC.ls=LS_METHOD_AFTER;
1.48 paf 1148: RC;
1.1 paf 1149: }
1.48 paf 1150: break;
1151: case '{':
1.1 paf 1152: lexical_brackets_nestage++;
1.48 paf 1153: break;
1154: }
1.1 paf 1155: break;
1.48 paf 1156:
1.1 paf 1157: case LS_METHOD_AFTER:
1.69 paf 1158: if(c=='[') {/* ][ }[ )[ */
1.114 paf 1159: PC.ls=LS_METHOD_SQUARE;
1.1 paf 1160: lexical_brackets_nestage=1;
1.48 paf 1161: RC;
1.1 paf 1162: }
1.69 paf 1163: if(c=='{') {/* ]{ }{ ){ */
1.114 paf 1164: PC.ls=LS_METHOD_CURLY;
1.69 paf 1165: lexical_brackets_nestage=1;
1166: RC;
1167: }
1168: if(c=='(') {/* ]( }( )( */
1.114 paf 1169: PC.ls=LS_METHOD_ROUND;
1.1 paf 1170: lexical_brackets_nestage=1;
1.48 paf 1171: RC;
1.1 paf 1172: }
1173: pop_LS(PC);
1.114 paf 1174: PC.source--; if(--PC.col<0) { PC.line--; PC.col=-1; }
1.13 paf 1175: result=EON;
1.1 paf 1176: goto break2;
1177: }
1.9 paf 1178: if(c==0) {
1.1 paf 1179: result=-1;
1180: break;
1181: }
1182: }
1183:
1184: break2:
1.59 paf 1185: if(end!=begin) { // there is last piece?
1186: if((c=='@' || c==0) && end[-1]=='\n') { // we are before LS_DEF_NAME or EOF?
1187: // strip last \n
1.10 paf 1188: end--;
1.137 parser 1189: if(end!=begin && end[-1]=='\n') // allow one empty line before LS_DEF_NAME
1190: end--;
1.59 paf 1191: }
1.133 parser 1192: if(end!=begin && PC.ls!=LS_COMMENT) { // last piece still alive and not comment?
1.59 paf 1193: // append it
1.121 paf 1194: PC.string->APPEND_CLEAN(begin, end-begin, PC.file, begin_line/*, start_col*/);
1.30 paf 1195: }
1.59 paf 1196: }
1.114 paf 1197: if(PC.string->size()) { // something accumulated?
1.17 paf 1198: // create STRING value: array of OP_VALUE+vstring
1.114 paf 1199: *lvalp=VL(NEW VString(*PC.string));
1.10 paf 1200: // new pieces storage
1.114 paf 1201: PC.string=NEW String(POOL);
1.58 paf 1202: // make current result be pending for next call, return STRING for now
1.114 paf 1203: PC.pending_state=result; result=STRING;
1.58 paf 1204: }
1.67 paf 1205: if(skip_analized) {
1.114 paf 1206: PC.source+=skip_analized; PC.col+=skip_analized;
1.1 paf 1207: }
1.58 paf 1208: return result;
1.1 paf 1209: }
1210:
1.110 paf 1211: static int real_yyerror(parse_control *pc, char *s) { // Called by yyparse on error
1.114 paf 1212: strncpy(PC.error, s, MAX_STRING);
1.1 paf 1213: return 1;
1.110 paf 1214: }
1.1 paf 1215:
1.110 paf 1216: static void yyprint(FILE *file, int type, YYSTYPE value) {
1217: if(type==STRING)
1.120 paf 1218: fprintf(file, " \"%s\"", LA2S(value)->cstr());
1.110 paf 1219: }
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