Annotation of parser3/src/main/compile.y, revision 1.52
1.24 paf 1: /*
1.52 ! paf 2: $Id: compile.y,v 1.51 2001/03/06 13:07:03 paf Exp $
1.24 paf 3: */
4:
1.1 paf 5: %{
1.9 paf 6: #define YYSTYPE Array/*<op>*/ *
7: #define YYPARSE_PARAM pc
8: #define YYLEX_PARAM pc
9: #define YYDEBUG 1
1.1 paf 10: #define YYERROR_VERBOSE
1.9 paf 11: #define yyerror(msg) real_yyerror((parse_control *)pc, msg)
12: #define YYPRINT(file, type, value) yyprint(file, type, value)
1.1 paf 13:
14: #include <stdio.h>
15: #include <string.h>
16: #include <stdlib.h>
17:
18: #include "compile_tools.h"
1.8 paf 19: #include "pa_value.h"
1.12 paf 20: #include "pa_request.h"
1.39 paf 21: #include "pa_vobject.h"
1.52 ! paf 22: #include "pa_vdouble.h"
1.39 paf 23:
24: #define SELF_NAME "self"
25: #define USES_NAME "USES"
1.1 paf 26:
1.9 paf 27: int real_yyerror(parse_control *pc, char *s);
28: static void yyprint(FILE *file, int type, YYSTYPE value);
1.1 paf 29: int yylex(YYSTYPE *lvalp, void *pc);
30:
31:
1.8 paf 32: // local convinient inplace typecast & var
1.9 paf 33: #define PC ((parse_control *)pc)
1.25 paf 34: #define POOL *PC->pool
35: #undef NEW
36: #define NEW new(POOL)
1.1 paf 37: %}
38:
39: %pure_parser
40:
1.13 paf 41: %token EON
1.4 paf 42: %token STRING
1.1 paf 43: %token BOGUS
1.50 paf 44: %token LOGICAL_AND LOGICAL_OR
1.1 paf 45:
46: %%
47:
1.10 paf 48: all:
49: one_big_piece {
1.25 paf 50: String& name_main=*NEW String(POOL);
1.11 paf 51: name_main.APPEND_CONST(MAIN_METHOD_NAME);
1.25 paf 52: Array& param_names=*NEW Array(POOL);
53: Array& local_names=*NEW Array(POOL);
1.34 paf 54: Method& method=*NEW Method(POOL, name_main, param_names, local_names, *$1);
55: PC->vclass->add_method(name_main, method);
1.10 paf 56: }
57: | methods;
58:
59: methods: method | methods method;
60: one_big_piece: maybe_codes;
61:
1.34 paf 62: method: control_method | code_method;
63:
64: control_method: '@' STRING '\n'
65: control_strings {
1.38 paf 66: String& name=*SLA2S($2);
1.34 paf 67: YYSTYPE strings_code=$4;
1.37 paf 68: if(strings_code->size()<1*2) {
69: strcpy(PC->error, "@");
70: strcat(PC->error, name.cstr());
71: strcat(PC->error, " is empty");
72: YYERROR;
73: }
1.36 paf 74: if(name==CLASS_NAME) {
1.34 paf 75: if(strings_code->size()==1*2)
1.38 paf 76: PC->vclass->set_name(*SLA2S(strings_code));
1.34 paf 77: else {
78: strcpy(PC->error, "@"CLASS_NAME" must contain sole name");
79: YYERROR;
80: }
81: } else {
1.36 paf 82: if(name==USES_NAME) {
1.34 paf 83: for(int i=0; i<strings_code->size(); i+=2) {
1.38 paf 84: String *file=SLA2S(strings_code, i);
1.35 paf 85: file->APPEND_CONST(".p");
86: PC->request->use(file->cstr(), 0);
1.34 paf 87: }
1.45 paf 88: } else if(name==BASE_NAME) {
89: if(strings_code->size()==1*2) {
90: String& base_name=*SLA2S(strings_code);
91: VClass *base=static_cast<VClass *>(
92: PC->request->classes().get(base_name));
93: if(!base) {
94: strcpy(PC->error, base_name.cstr());
95: strcat(PC->error, ": undefined class in @"BASE_NAME);
1.34 paf 96: YYERROR;
97: }
1.45 paf 98: PC->vclass->set_base(*base);
99: } else {
100: strcpy(PC->error, "@"BASE_NAME" must contain sole name");
101: YYERROR;
1.34 paf 102: }
103: } else {
1.36 paf 104: strcpy(PC->error, name.cstr());
1.34 paf 105: strcat(PC->error, ": invalid special name. valid names are "
1.45 paf 106: CLASS_NAME", "USES_NAME" and "BASE_NAME);
1.34 paf 107: YYERROR;
108: }
109: }
110: };
1.37 paf 111: control_strings: control_string | control_strings control_string { $$=$1; P($$, $2) };
112: control_string: maybe_string '\n';
113: maybe_string: empty | STRING;
1.34 paf 114:
115: code_method: '@' STRING bracketed_maybe_strings maybe_bracketed_strings maybe_comment '\n'
1.10 paf 116: maybe_codes {
1.38 paf 117: const String *name=SLA2S($2);
1.10 paf 118:
119: YYSTYPE params_names_code=$3;
1.25 paf 120: Array& params_names=*NEW Array(POOL);
1.10 paf 121: for(int i=0; i<params_names_code->size(); i+=2)
1.38 paf 122: params_names+=SLA2S(params_names_code, i);
1.10 paf 123:
124: YYSTYPE locals_names_code=$4;
1.25 paf 125: Array& locals_names=*NEW Array(POOL);
1.10 paf 126: for(int i=0; i<locals_names_code->size(); i+=2)
1.38 paf 127: locals_names+=SLA2S(locals_names_code, i);
1.10 paf 128:
1.34 paf 129: Method& method=*NEW Method(POOL, *name, params_names, locals_names, *$7);
130: PC->vclass->add_method(*name, method);
1.8 paf 131: };
1.10 paf 132:
133: maybe_bracketed_strings: empty | bracketed_maybe_strings;
134: bracketed_maybe_strings: '[' maybe_strings ']' {$$=$2};
135: maybe_strings: empty | strings;
136: strings: STRING | strings ';' STRING { $$=$1; P($$, $3) };
137:
138: maybe_comment: empty | STRING;
1.1 paf 139:
140: /* codes */
141:
1.10 paf 142: maybe_codes: empty | codes;
143:
1.1 paf 144: codes: code | codes code {
145: $$=$1;
1.9 paf 146: P($$, $2);
1.1 paf 147: };
148: code: write_str_literal | action;
149: action: get | put | with | call;
150:
151: /* get */
152:
1.42 paf 153: get: '$' get_name {
1.1 paf 154: $$=$2; /* stack: resulting value */
1.17 paf 155: OP($$, OP_WRITE); /* value=pop; write(value) */
1.1 paf 156: };
1.43 paf 157: get_name: name_without_curly_rdive EON | name_in_curly_rdive;
1.1 paf 158: name_in_curly_rdive: '{' name_without_curly_rdive '}' { $$=$2 };
1.44 paf 159: name_without_curly_rdive:
160: name_without_curly_rdive_read
161: | name_without_curly_rdive_root
162: | name_without_curly_rdive_class;
1.19 paf 163: name_without_curly_rdive_read: name_without_curly_rdive_code {
1.25 paf 164: $$=N(POOL);
1.22 paf 165: Array *diving_code=$1;
1.38 paf 166: String *first_name=SLA2S(diving_code);
1.23 paf 167: if(first_name && *first_name==SELF_NAME) {
1.22 paf 168: OP($$, OP_WITH_SELF); /* stack: starting context */
169: P($$, diving_code,
170: /* skip over... */
171: diving_code->size()>2?3/*OP_+string+get_element*/:2/*OP_+string*/);
172: } else {
173: OP($$, OP_WITH_READ); /* stack: starting context */
174: P($$, diving_code);
175: }
176: /* diving code; stack: current context */
1.1 paf 177: };
1.19 paf 178: name_without_curly_rdive_root: ':' name_without_curly_rdive_code {
1.25 paf 179: $$=N(POOL);
1.19 paf 180: OP($$, OP_WITH_ROOT); /* stack: starting context */
181: P($$, $2); /* diving code; stack: current context */
182: };
1.44 paf 183: name_without_curly_rdive_class: class_prefix name_without_curly_rdive_code { $$=$1; P($$, $2) };
1.19 paf 184: name_without_curly_rdive_code: name_advance2 | name_path name_advance2 { $$=$1; P($$, $2) };
1.1 paf 185:
186: /* put */
187:
1.52 ! paf 188: put: '$' name_expr_wdive constructor_value {
1.20 paf 189: $$=$2; /* stack: context,name */
1.52 ! paf 190: P($$, $3); /* stack: context,name,constructor_value */
1.20 paf 191: OP($$, OP_CONSTRUCT); /* value=pop; name=pop; context=pop; construct(context,name,value) */
192: };
1.44 paf 193: name_expr_wdive:
194: name_expr_wdive_write
195: | name_expr_wdive_root
196: | name_expr_wdive_class;
1.28 paf 197: name_expr_wdive_write: name_expr_dive_code {
1.44 paf 198: $$=N(POOL);
1.23 paf 199: Array *diving_code=$1;
1.38 paf 200: String *first_name=SLA2S(diving_code);
1.23 paf 201: if(first_name && *first_name==SELF_NAME) {
202: OP($$, OP_WITH_SELF); /* stack: starting context */
203: P($$, diving_code,
204: /* skip over... */
205: diving_code->size()>2?3/*OP_+string+get_element*/:2/*OP_+string*/);
206: } else {
207: OP($$, OP_WITH_WRITE); /* stack: starting context */
208: P($$, diving_code);
209: }
210: /* diving code; stack: current context */
1.20 paf 211: };
1.28 paf 212: name_expr_wdive_root: ':' name_expr_dive_code {
1.25 paf 213: $$=N(POOL);
1.20 paf 214: OP($$, OP_WITH_ROOT); /* stack: starting context */
1.9 paf 215: P($$, $2); /* diving code; stack: context,name */
1.1 paf 216: };
1.44 paf 217: name_expr_wdive_class: class_prefix name_expr_dive_code { $$=$1; P($$, $2) };
1.20 paf 218:
1.1 paf 219: constructor_value:
1.52 ! paf 220: '[' constructor_code_value ']' { $$=$2 }
! 221: | '(' constructor_expression_value ')' { $$=$2 }
! 222: ;
! 223: constructor_code_value:
! 224: empty_value /* optimized $var[] case */
! 225: | STRING /* optimized $var[STRING] case */
! 226: | complex_constructor_code_value /* $var[something complex] */
1.1 paf 227: ;
1.52 ! paf 228: complex_constructor_code_value: complex_constructor_code {
1.25 paf 229: $$=N(POOL);
1.3 paf 230: OP($$, OP_CREATE_EWPOOL); /* stack: empty write context */
1.9 paf 231: P($$, $1); /* some codes to that context */
232: OP($$, OP_REDUCE_EWPOOL); /* context=pop; stack: context.value() */
1.1 paf 233: };
1.52 ! paf 234: complex_constructor_code: codes__excluding_sole_str_literal;
1.27 paf 235: codes__excluding_sole_str_literal: action | code codes { $$=$1; P($$, $2) };
236:
1.52 ! paf 237: constructor_expression_value:
! 238: empty_value /* optimized $var() case */
! 239: | STRING /* optimized $var(STRING) case */
! 240: ;/*| complex_constructor_expression_value /* $var(something complex) * /
! 241: ;
! 242: complex_constructor_expression_value: complex_constructor_expression {
! 243: $$=N(POOL);
! 244: OP($$, OP_CREATE_SWPOOL); /* stack: empty write context * /
! 245: P($$, $1); /* some codes to that context * /
! 246: OP($$, OP_REDUCE_SWPOOL); /* context=pop; stack: context.get_string() * /
! 247: };
! 248: complex_constructor_expression:
! 249: ;
! 250: */
! 251:
1.1 paf 252: /* call */
253:
1.38 paf 254: call: '^' call_name store_params EON { /* ^field.$method{vasya} */
1.42 paf 255: $$=$2; /* with_xxx,diving code; stack: context,method_junction */
1.9 paf 256: OP($$, OP_GET_METHOD_FRAME); /* stack: context,method_frame */
257: P($$, $3); /* filling method_frame.store_params */
258: OP($$, OP_CALL); /* method_frame=pop; ncontext=pop; call(ncontext,method_frame) */
1.1 paf 259: };
260:
1.43 paf 261: call_name: name_without_curly_rdive;
1.38 paf 262:
1.9 paf 263: store_params: store_param | store_params store_param { $$=$1; P($$, $2) };
1.1 paf 264: store_param: store_round_param | store_curly_param;
1.47 paf 265: store_round_param: '[' store_param_parts ']' {$$=$2};
1.31 paf 266: store_param_parts:
1.32 paf 267: store_param_part
268: | store_param_parts ';' store_param_part { $$=$1; P($$, $3) }
1.31 paf 269: ;
1.10 paf 270: store_curly_param: '{' maybe_codes '}' {
1.25 paf 271: $$=N(POOL);
1.29 paf 272: PCA($$, $2);
1.9 paf 273: OP($$, OP_STORE_PARAM);
1.1 paf 274: };
1.32 paf 275: store_param_part:
1.33 paf 276: empty /* optimized () case */
277: | STRING { /* optimized (STRING) case */
1.32 paf 278: $$=$1;
279: OP($$, OP_STORE_PARAM);
280: }
1.52 ! paf 281: | complex_constructor_code_value { /* (something complex) */
1.32 paf 282: $$=$1;
283: OP($$, OP_STORE_PARAM);
284: }
285: ;
1.1 paf 286:
287: /* name */
288:
1.20 paf 289: name_expr_dive_code: name_expr_value | name_path name_expr_value { $$=$1; P($$, $2) };
1.1 paf 290:
1.9 paf 291: name_path: name_step | name_path name_step { $$=$1; P($$, $2) };
1.1 paf 292: name_step: name_advance1 '.';
293: name_advance1: name_expr_value {
294: /* stack: context */
295: $$=$1; /* stack: context,name */
1.9 paf 296: OP($$, OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */
1.1 paf 297: };
298: name_advance2: name_expr_value {
299: /* stack: context */
300: $$=$1; /* stack: context,name */
1.9 paf 301: OP($$, OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */
1.1 paf 302: }
1.4 paf 303: | STRING BOGUS
1.1 paf 304: ;
305: name_expr_value:
1.4 paf 306: STRING /* subname_is_const */
1.1 paf 307: | name_expr_subvar_value /* $subname_is_var_value */
308: | name_expr_with_subvar_value /* xxx$part_of_subname_is_var_value[$...] */
309: ;
310: name_expr_subvar_value: '$' subvar_ref_name_rdive {
311: $$=$2;
1.9 paf 312: OP($$, OP_GET_ELEMENT);
1.1 paf 313: };
1.4 paf 314: name_expr_with_subvar_value: STRING subvar_get_writes {
1.25 paf 315: $$=N(POOL);
1.3 paf 316: OP($$, OP_CREATE_EWPOOL);
1.9 paf 317: P($$, $1);
1.17 paf 318: OP($$, OP_WRITE);
1.9 paf 319: P($$, $2);
320: OP($$, OP_REDUCE_EWPOOL);
1.1 paf 321: };
1.18 paf 322: subvar_ref_name_rdive: subvar_ref_name_rdive_read | subvar_ref_name_rdive_root;
323: subvar_ref_name_rdive_read: STRING {
1.25 paf 324: $$=N(POOL);
1.18 paf 325: OP($$, OP_WITH_READ);
1.9 paf 326: P($$, $1);
1.1 paf 327: };
1.18 paf 328: subvar_ref_name_rdive_root: ':' STRING {
1.25 paf 329: $$=N(POOL);
1.18 paf 330: OP($$, OP_WITH_ROOT);
331: P($$, $2);
332: };
1.9 paf 333: subvar_get_writes: subvar__get_write | subvar_get_writes subvar__get_write { $$=$1; P($$, $2) };
1.1 paf 334: subvar__get_write: '$' subvar_ref_name_rdive {
335: $$=$2;
1.17 paf 336: OP($$, OP_GET_ELEMENT__WRITE);
1.42 paf 337: };
338:
1.44 paf 339: class_prefix: STRING ':' {
1.42 paf 340: String& name=*SLA2S($1);
341: VClass *vclass=static_cast<VClass *>(PC->request->classes().get(name));
342: if(!vclass) {
343: strcpy(PC->error, "'");
344: strcat(PC->error, name.cstr());
345: strcat(PC->error, "' class is undefined in call");
346: YYERROR;
347: }
1.48 paf 348: //TODO: убрать зависимость от статических @USE, сделать имя, а не ссылку
1.42 paf 349: $$=CL(vclass); // vclass
1.1 paf 350: };
351:
352:
353: /* with */
354:
355: with: '$' name_without_curly_rdive '{' codes '}' {
356: $$=$2;
1.9 paf 357: OP($$, OP_CREATE_RWPOOL);
358: P($$, $4);
359: OP($$, OP_REDUCE_RWPOOL);
1.17 paf 360: OP($$, OP_WRITE);
1.1 paf 361: };
362:
1.27 paf 363: /* basics */
1.1 paf 364:
1.4 paf 365: write_str_literal: STRING {
1.38 paf 366: if(SLA2S($1)->size()) {
1.30 paf 367: $$=$1;
368: OP($$, OP_WRITE);
369: } else {
370: // optimized case of special end of macro. see yylex
371: $$=N(POOL);
372: }
1.26 paf 373: };
1.38 paf 374: empty_value: /* empty */ { $$=SL(NEW VString(POOL)) };
1.25 paf 375: empty: /* empty */ { $$=N(POOL) };
1.1 paf 376:
377: %%
378:
379: /*
380: 000$111(2222)00
381: 000$111{3333}00
1.9 paf 382: $,^: push,=0
1.1 paf 383: 1:( { break=pop
384: 2:( ) pop
385: 3:{ } pop
386:
387: 000^111(2222)4444{33333}4000
1.9 paf 388: $,^: push,=0
1.1 paf 389: 1:( { break=pop
390: 2:( )=4
391: 3:{ }=4
392: 4:[^({]=pop
393: */
394:
395: int yylex(YYSTYPE *lvalp, void *pc) {
396: #define lexical_brackets_nestage PC->brackets_nestages[PC->sp]
1.48 paf 397: #define RC {result=c; goto break2; }
1.1 paf 398:
399: register int c;
400: int result;
401:
402: if(PC->pending_state) {
403: result=PC->pending_state;
404: PC->pending_state=0;
405: return result;
406: }
407:
1.9 paf 408: char *begin=PC->source;
409: char *end;
410: int begin_line=PC->line;
1.50 paf 411: while(true) {
1.9 paf 412: c=*(end=(PC->source++));
1.1 paf 413:
1.4 paf 414: if(c=='\n') {
1.1 paf 415: PC->line++;
1.8 paf 416: PC->col=0;
1.10 paf 417: } else
1.4 paf 418: PC->col++;
1.1 paf 419:
1.48 paf 420: // escaping: ^^ ^$ ^; ^) ^} ^( ^{ ^"
421: if(c=='^')
422: switch(*PC->source) {
423: case '^': case '$': case ';':
424: case '[': case ']':
425: case '{': case '}':
426: case '"':
1.40 paf 427: if(end!=begin) {
428: // append piece till ^
429: PC->string->APPEND(begin, end-begin, PC->file, begin_line);
430: }
431: // reset piece 'start' position & line
432: begin=PC->source; // ^
1.9 paf 433: begin_line=PC->line;
1.40 paf 434: // skip over ^ and _
1.50 paf 435: PC->source++; PC->col++;
1.40 paf 436: // skip analysis = forced literal
1.1 paf 437: continue;
438: }
439: switch(PC->ls) {
1.10 paf 440:
441: // USER'S = NOT OURS
1.1 paf 442: case LS_USER:
1.48 paf 443: switch(c) {
444: case '$':
1.10 paf 445: push_LS(PC, LS_VAR_NAME_SIMPLE);
1.48 paf 446: RC;
447: case '^':
448: push_LS(PC, LS_METHOD_NAME);
449: RC;
450: case '@':
451: if(PC->col==0+1) {
452: push_LS(PC, LS_DEF_NAME);
453: RC;
454: }
455: break;
1.1 paf 456: }
1.48 paf 457: break;
458:
459: // STRING IN EXPRESSION
460: case LS_EXPRESSION_STRING:
461: switch(c) {
462: case '"':
463: pop_LS(PC); //"abc".
464: RC;
465: case '$':
466: push_LS(PC, LS_VAR_NAME_SIMPLE);
467: RC;
468: case '^':
1.10 paf 469: push_LS(PC, LS_METHOD_NAME);
1.48 paf 470: RC;
1.10 paf 471: }
472: break;
473:
474: // METHOD DEFINITION
475: case LS_DEF_NAME:
1.48 paf 476: switch(c) {
477: case '[':
1.10 paf 478: PC->ls=LS_DEF_PARAMS;
1.48 paf 479: RC;
480: case '\n':
481: PC->ls=LS_DEF_SPECIAL_BODY;
482: RC;
1.10 paf 483: }
484: break;
1.48 paf 485:
1.10 paf 486: case LS_DEF_PARAMS:
1.48 paf 487: switch(c) {
488: case ';':
489: RC;
490: case ']':
1.10 paf 491: PC->ls=*PC->source=='['?LS_DEF_LOCALS:LS_DEF_COMMENT;
1.48 paf 492: RC;
1.49 paf 493: case '\n': // wrong. bailing out
1.10 paf 494: pop_LS(PC);
1.48 paf 495: RC;
1.10 paf 496: }
497: break;
1.48 paf 498:
1.10 paf 499: case LS_DEF_LOCALS:
1.48 paf 500: switch(c) {
501: case '[':
502: case ';':
503: RC;
504: case ']':
1.10 paf 505: PC->ls=LS_DEF_COMMENT;
1.48 paf 506: RC;
507: case '\n': // wrong. bailing out
1.10 paf 508: pop_LS(PC);
1.48 paf 509: RC;
1.10 paf 510: }
511: break;
1.48 paf 512:
1.10 paf 513: case LS_DEF_COMMENT:
514: if(c=='\n') {
515: pop_LS(PC);
1.48 paf 516: RC;
1.37 paf 517: }
518: break;
519:
1.48 paf 520: case LS_DEF_SPECIAL_BODY:
1.37 paf 521: if(c=='\n') {
1.48 paf 522: switch(*PC->source) {
523: case '@': case 0: // end of special_code
1.37 paf 524: pop_LS(PC);
1.48 paf 525: break;
526: }
527: RC;
528: }
529: break;
530:
531: // (EXPRESSION)
532: case LS_EXPRESSION_BODY:
533: switch(c) {
534: case ')':
535: if(--lexical_brackets_nestage==0)
536: pop_LS(PC); //(EXPRESSION).
537: RC;
538: case '$':
539: push_LS(PC, LS_VAR_NAME_IN_EXPRESSION);
540: RC;
541: case '^':
542: push_LS(PC, LS_METHOD_NAME);
543: RC;
544: case '(':
545: lexical_brackets_nestage++;
546: RC;
547: case '+': case '-': case '*': case '/': case '%':
1.49 paf 548: case '&': case '|':
549: case '<': case '>': case '=': case '!':
1.48 paf 550: case ';':
551: RC;
552: case '"':
553: push_LS(PC, LS_EXPRESSION_STRING);
554: RC;
1.50 paf 555: case 'l': case 'g': case 'e': case 'n':
1.51 paf 556: if(end==begin) // right after whitespace
557: switch(char next_c=*PC->source) {
558: // case '?': // ok [and bad cases, yacc would bark at them]
559: case 't': // lt gt [et nt]
560: case 'e': // le ge ne [ee]
561: case 'q': // eq [lq gq nq]
562: PC->source++; PC->col++;
563: PC->pending_state=next_c;
564: return c;
1.50 paf 565: }
1.48 paf 566: break;
567: case ' ': case '\t': case '\n':
568: if(end!=begin) {
569: // append piece till whitespace
570: PC->string->APPEND(begin, end-begin, PC->file, begin_line);
571: }
572: // reset piece 'start' position & line
1.50 paf 573: begin=PC->source; // after whitespace
1.48 paf 574: begin_line=PC->line;
575: continue;
1.1 paf 576: }
577: break;
578:
1.10 paf 579: // VARIABLE GET/PUT/WITH
1.1 paf 580: case LS_VAR_NAME_SIMPLE:
1.48 paf 581: case LS_VAR_NAME_IN_EXPRESSION:
582: if(PC->ls==LS_VAR_NAME_IN_EXPRESSION) {
583: // name in expression ends also before binary operators
584: switch(c) {
585: case '+': case '-': case '*': case '/': case '%':
586: case '&': case '|':
587: case '<': case '>': case '=': case '!':
588: pop_LS(PC);
589: PC->source--; if(--PC->col<0) { PC->line--; PC->col=-1; }
590: result=EON;
591: goto break2;
592: }
593: }
594: switch(c) {
595: case 0:
596: case ' ': case '\t': case '\n':
597: case ';':
598: case ']': case '}':
1.1 paf 599: pop_LS(PC);
1.32 paf 600: PC->source--; if(--PC->col<0) { PC->line--; PC->col=-1; }
1.13 paf 601: result=EON;
1.1 paf 602: goto break2;
1.48 paf 603: case '[':
604: PC->ls=LS_VAR_SQUARE;
1.1 paf 605: lexical_brackets_nestage=1;
1.48 paf 606: RC;
607: case '{':
608: if(begin==end) { // ${name}, no need of EON, switching LS
609: PC->ls=LS_VAR_NAME_CURLY;
610: } else {
611: PC->ls=LS_VAR_CURLY;
612: lexical_brackets_nestage=1;
613: }
614:
615: RC;
616: case '(':
617: PC->ls=LS_EXPRESSION_BODY;
1.1 paf 618: lexical_brackets_nestage=1;
1.48 paf 619: RC;
620: case '.': // name part delim
621: case '$': // name part subvar
622: case ':': // ':name' or 'class:name'
623: RC;
1.1 paf 624: }
625: break;
1.48 paf 626:
1.1 paf 627: case LS_VAR_NAME_CURLY:
1.48 paf 628: switch(c) {
629: case '}': // ${name} finished, restoring LS
1.1 paf 630: pop_LS(PC);
1.48 paf 631: RC;
632: case '.': // name part delim
633: case '$': // name part subvar
634: case ':': // ':name' or 'class:name'
635: RC;
1.1 paf 636: }
637: break;
1.48 paf 638:
639: case LS_VAR_SQUARE:
640: switch(c) {
641: case '$':
1.10 paf 642: push_LS(PC, LS_VAR_NAME_SIMPLE);
1.48 paf 643: RC;
644: case '^':
1.10 paf 645: push_LS(PC, LS_METHOD_NAME);
1.48 paf 646: RC;
647: case ']':
1.1 paf 648: if(--lexical_brackets_nestage==0) {
649: pop_LS(PC);
1.48 paf 650: RC;
1.1 paf 651: }
1.48 paf 652: break;
653: case ';': // operator_or_fmt;value delim
654: RC;
655: case '[':
656: lexical_brackets_nestage++;
657: break;
1.1 paf 658: }
659: break;
1.48 paf 660:
1.1 paf 661: case LS_VAR_CURLY:
1.48 paf 662: switch(c) {
663: case '$':
1.10 paf 664: push_LS(PC, LS_VAR_NAME_SIMPLE);
1.48 paf 665: RC;
666: case '^':
1.10 paf 667: push_LS(PC, LS_METHOD_NAME);
1.48 paf 668: RC;
669: case '}':
1.1 paf 670: if(--lexical_brackets_nestage==0) {
671: pop_LS(PC);
1.48 paf 672: RC;
1.1 paf 673: }
1.48 paf 674: break;
675: case '{':
1.1 paf 676: lexical_brackets_nestage++;
1.48 paf 677: break;
678: }
1.1 paf 679: break;
680:
1.10 paf 681: // METHOD CALL
1.1 paf 682: case LS_METHOD_NAME:
1.48 paf 683: switch(c) {
684: case '[':
685: PC->ls=LS_METHOD_SQUARE;
1.1 paf 686: lexical_brackets_nestage=1;
1.48 paf 687: RC;
688: case '{':
1.1 paf 689: PC->ls=LS_METHOD_CURLY;
690: lexical_brackets_nestage=1;
1.48 paf 691: RC;
692: case '.': // name part delim
693: case '$': // name part subvar
694: case ':': // ':name' or 'class:name'
695: RC;
1.1 paf 696: }
697: break;
1.48 paf 698:
699: case LS_METHOD_SQUARE:
700: switch(c) {
701: case '$':
1.10 paf 702: push_LS(PC, LS_VAR_NAME_SIMPLE);
1.48 paf 703: RC;
704: case '^':
1.10 paf 705: push_LS(PC, LS_METHOD_NAME);
1.48 paf 706: RC;
707: case ';': // param delim
708: RC;
709: case ']':
1.1 paf 710: if(--lexical_brackets_nestage==0) {
711: PC->ls=LS_METHOD_AFTER;
1.48 paf 712: RC;
1.1 paf 713: }
1.48 paf 714: break;
715: case '[':
1.1 paf 716: lexical_brackets_nestage++;
1.48 paf 717: break;
718: }
1.1 paf 719: break;
1.48 paf 720:
1.1 paf 721: case LS_METHOD_CURLY:
1.48 paf 722: switch(c) {
723: case '$':
1.10 paf 724: push_LS(PC, LS_VAR_NAME_SIMPLE);
1.48 paf 725: RC;
726: case '^':
1.10 paf 727: push_LS(PC, LS_METHOD_NAME);
1.48 paf 728: RC;
729: case '}':
1.1 paf 730: if(--lexical_brackets_nestage==0) {
731: PC->ls=LS_METHOD_AFTER;
1.48 paf 732: RC;
1.1 paf 733: }
1.48 paf 734: break;
735: case '{':
1.1 paf 736: lexical_brackets_nestage++;
1.48 paf 737: break;
738: }
1.1 paf 739: break;
1.48 paf 740:
1.1 paf 741: case LS_METHOD_AFTER:
1.47 paf 742: if(c=='[') {/* )( }( */
1.48 paf 743: PC->ls=LS_METHOD_SQUARE;
1.1 paf 744: lexical_brackets_nestage=1;
1.48 paf 745: RC;
1.1 paf 746: }
747: if(c=='{') {/* ){ }{ */
748: PC->ls=LS_METHOD_CURLY;
749: lexical_brackets_nestage=1;
1.48 paf 750: RC;
1.1 paf 751: }
752: pop_LS(PC);
1.32 paf 753: PC->source--; if(--PC->col<0) { PC->line--; PC->col=-1; }
1.13 paf 754: result=EON;
1.1 paf 755: goto break2;
756: }
1.9 paf 757: if(c==0) {
1.1 paf 758: result=-1;
759: break;
760: }
761: }
762:
763: break2:
1.9 paf 764: if(begin==end)
1.1 paf 765: return result;
766: else {
767: PC->pending_state=result;
1.10 paf 768: // strip last \n before LS_DEF_NAME or EOF
769: if((c=='@' || c==0) && end[-1]=='\n')
770: end--;
1.30 paf 771: if(end!=begin) {
772: // append last piece
773: PC->string->APPEND(begin, end-begin, PC->file, begin_line/*, start_col*/);
774: }
1.17 paf 775: // create STRING value: array of OP_VALUE+vstring
1.45 paf 776: *lvalp=SL(NEW VString(*PC->string));
1.10 paf 777: // new pieces storage
1.25 paf 778: PC->string=NEW String(POOL);
1.10 paf 779: // go!
1.4 paf 780: return STRING;
1.1 paf 781: }
782: }
783:
1.9 paf 784: int real_yyerror(parse_control *pc, char *s) /* Called by yyparse on error */
1.1 paf 785: {
1.16 paf 786: //fprintf(stderr, "[%s]\n", s);
1.6 paf 787:
1.46 paf 788: strncpy(pc->error, s, MAX_STRING); // TODO: перепроверить с треклятым последним байтом
1.1 paf 789: return 1;
790: }
791:
792: static void
1.9 paf 793: yyprint(
1.1 paf 794: FILE *file,
795: int type,
796: YYSTYPE value)
797: {
1.9 paf 798: if(type==STRING)
1.38 paf 799: fprintf(file, " \"%s\"", SLA2S(value)->cstr());
1.1 paf 800: }
801:
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