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1.24 paf 1: /*
1.43 paf 2: $Id: compile.y,v 1.42 2001/02/25 10:11:50 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"
22:
23: #define SELF_NAME "self"
24: #define USES_NAME "USES"
1.1 paf 25:
1.9 paf 26: int real_yyerror(parse_control *pc, char *s);
27: static void yyprint(FILE *file, int type, YYSTYPE value);
1.1 paf 28: int yylex(YYSTYPE *lvalp, void *pc);
29:
30:
1.8 paf 31: // local convinient inplace typecast & var
1.9 paf 32: #define PC ((parse_control *)pc)
1.25 paf 33: #define POOL *PC->pool
34: #undef NEW
35: #define NEW new(POOL)
1.1 paf 36: %}
37:
38: %pure_parser
39:
1.13 paf 40: %token EON
1.4 paf 41: %token STRING
1.1 paf 42: %token BOGUS
43:
44: %%
45:
1.10 paf 46: all:
47: one_big_piece {
1.25 paf 48: String& name_main=*NEW String(POOL);
1.11 paf 49: name_main.APPEND_CONST(MAIN_METHOD_NAME);
1.25 paf 50: Array& param_names=*NEW Array(POOL);
51: Array& local_names=*NEW Array(POOL);
1.34 paf 52: Method& method=*NEW Method(POOL, name_main, param_names, local_names, *$1);
53: PC->vclass->add_method(name_main, method);
1.10 paf 54: }
55: | methods;
56:
57: methods: method | methods method;
58: one_big_piece: maybe_codes;
59:
1.34 paf 60: method: control_method | code_method;
61:
62: control_method: '@' STRING '\n'
63: control_strings {
1.38 paf 64: String& name=*SLA2S($2);
1.34 paf 65: YYSTYPE strings_code=$4;
1.37 paf 66: if(strings_code->size()<1*2) {
67: strcpy(PC->error, "@");
68: strcat(PC->error, name.cstr());
69: strcat(PC->error, " is empty");
70: YYERROR;
71: }
1.36 paf 72: if(name==CLASS_NAME) {
1.34 paf 73: if(strings_code->size()==1*2)
1.38 paf 74: PC->vclass->set_name(*SLA2S(strings_code));
1.34 paf 75: else {
76: strcpy(PC->error, "@"CLASS_NAME" must contain sole name");
77: YYERROR;
78: }
79: } else {
1.36 paf 80: if(name==USES_NAME) {
1.34 paf 81: for(int i=0; i<strings_code->size(); i+=2) {
1.38 paf 82: String *file=SLA2S(strings_code, i);
1.35 paf 83: file->APPEND_CONST(".p");
84: PC->request->use(file->cstr(), 0);
1.34 paf 85: }
1.36 paf 86: } else if(name==PARENTS_NAME) {
1.34 paf 87: for(int i=0; i<strings_code->size(); i+=2) {
1.38 paf 88: String& parent_name=*SLA2S(strings_code, i);
1.34 paf 89: VClass *parent=static_cast<VClass *>(
1.36 paf 90: PC->request->classes().get(parent_name));
1.34 paf 91: if(!parent) {
1.36 paf 92: strcpy(PC->error, parent_name.cstr());
1.38 paf 93: strcat(PC->error, ": undefined class in @"PARENTS_NAME);
1.34 paf 94: YYERROR;
95: }
96: PC->vclass->add_parent(*parent);
97: }
98: } else {
1.36 paf 99: strcpy(PC->error, name.cstr());
1.34 paf 100: strcat(PC->error, ": invalid special name. valid names are "
101: CLASS_NAME", "USES_NAME" and "PARENTS_NAME);
102: YYERROR;
103: }
104: }
105: };
1.37 paf 106: control_strings: control_string | control_strings control_string { $$=$1; P($$, $2) };
107: control_string: maybe_string '\n';
108: maybe_string: empty | STRING;
1.34 paf 109:
110: code_method: '@' STRING bracketed_maybe_strings maybe_bracketed_strings maybe_comment '\n'
1.10 paf 111: maybe_codes {
1.38 paf 112: const String *name=SLA2S($2);
1.10 paf 113:
114: YYSTYPE params_names_code=$3;
1.25 paf 115: Array& params_names=*NEW Array(POOL);
1.10 paf 116: for(int i=0; i<params_names_code->size(); i+=2)
1.38 paf 117: params_names+=SLA2S(params_names_code, i);
1.10 paf 118:
119: YYSTYPE locals_names_code=$4;
1.25 paf 120: Array& locals_names=*NEW Array(POOL);
1.10 paf 121: for(int i=0; i<locals_names_code->size(); i+=2)
1.38 paf 122: locals_names+=SLA2S(locals_names_code, i);
1.10 paf 123:
1.34 paf 124: Method& method=*NEW Method(POOL, *name, params_names, locals_names, *$7);
125: PC->vclass->add_method(*name, method);
1.8 paf 126: };
1.10 paf 127:
128: maybe_bracketed_strings: empty | bracketed_maybe_strings;
129: bracketed_maybe_strings: '[' maybe_strings ']' {$$=$2};
130: maybe_strings: empty | strings;
131: strings: STRING | strings ';' STRING { $$=$1; P($$, $3) };
132:
133: maybe_comment: empty | STRING;
1.1 paf 134:
135: /* codes */
136:
1.10 paf 137: maybe_codes: empty | codes;
138:
1.1 paf 139: codes: code | codes code {
140: $$=$1;
1.9 paf 141: P($$, $2);
1.1 paf 142: };
143: code: write_str_literal | action;
144: action: get | put | with | call;
145:
146: /* get */
147:
1.42 paf 148: get: '$' get_name {
1.1 paf 149: $$=$2; /* stack: resulting value */
1.17 paf 150: OP($$, OP_WRITE); /* value=pop; write(value) */
1.1 paf 151: };
1.43 paf 152: get_name: name_without_curly_rdive EON | name_in_curly_rdive;
1.1 paf 153: name_in_curly_rdive: '{' name_without_curly_rdive '}' { $$=$2 };
1.44 ! paf 154: name_without_curly_rdive:
! 155: name_without_curly_rdive_read
! 156: | name_without_curly_rdive_root
! 157: | name_without_curly_rdive_class;
1.19 paf 158: name_without_curly_rdive_read: name_without_curly_rdive_code {
1.25 paf 159: $$=N(POOL);
1.22 paf 160: Array *diving_code=$1;
1.38 paf 161: String *first_name=SLA2S(diving_code);
1.23 paf 162: if(first_name && *first_name==SELF_NAME) {
1.22 paf 163: OP($$, OP_WITH_SELF); /* stack: starting context */
164: P($$, diving_code,
165: /* skip over... */
166: diving_code->size()>2?3/*OP_+string+get_element*/:2/*OP_+string*/);
167: } else {
168: OP($$, OP_WITH_READ); /* stack: starting context */
169: P($$, diving_code);
170: }
171: /* diving code; stack: current context */
1.1 paf 172: };
1.19 paf 173: name_without_curly_rdive_root: ':' name_without_curly_rdive_code {
1.25 paf 174: $$=N(POOL);
1.19 paf 175: OP($$, OP_WITH_ROOT); /* stack: starting context */
176: P($$, $2); /* diving code; stack: current context */
177: };
1.44 ! paf 178: name_without_curly_rdive_class: class_prefix name_without_curly_rdive_code { $$=$1; P($$, $2) };
1.19 paf 179: name_without_curly_rdive_code: name_advance2 | name_path name_advance2 { $$=$1; P($$, $2) };
1.1 paf 180:
181: /* put */
182:
1.28 paf 183: put: '$' name_expr_wdive '(' constructor_value ')' {
1.20 paf 184: $$=$2; /* stack: context,name */
185: P($$, $4); /* stack: context,name,constructor_value */
186: OP($$, OP_CONSTRUCT); /* value=pop; name=pop; context=pop; construct(context,name,value) */
187: };
1.44 ! paf 188: name_expr_wdive:
! 189: name_expr_wdive_write
! 190: | name_expr_wdive_root
! 191: | name_expr_wdive_class;
1.28 paf 192: name_expr_wdive_write: name_expr_dive_code {
1.44 ! paf 193: $$=N(POOL);
1.23 paf 194: Array *diving_code=$1;
1.38 paf 195: String *first_name=SLA2S(diving_code);
1.23 paf 196: if(first_name && *first_name==SELF_NAME) {
197: OP($$, OP_WITH_SELF); /* stack: starting context */
198: P($$, diving_code,
199: /* skip over... */
200: diving_code->size()>2?3/*OP_+string+get_element*/:2/*OP_+string*/);
201: } else {
202: OP($$, OP_WITH_WRITE); /* stack: starting context */
203: P($$, diving_code);
204: }
205: /* diving code; stack: current context */
1.20 paf 206: };
1.28 paf 207: name_expr_wdive_root: ':' name_expr_dive_code {
1.25 paf 208: $$=N(POOL);
1.20 paf 209: OP($$, OP_WITH_ROOT); /* stack: starting context */
1.9 paf 210: P($$, $2); /* diving code; stack: context,name */
1.1 paf 211: };
1.44 ! paf 212: name_expr_wdive_class: class_prefix name_expr_dive_code { $$=$1; P($$, $2) };
1.20 paf 213:
1.1 paf 214: constructor_value:
1.32 paf 215: constructor_one_param_value
216: | constructor_two_params_value /* $var(=;2*2) $var(%d;2*2) $var(+;1) */
1.1 paf 217: ;
1.27 paf 218:
1.32 paf 219: constructor_one_param_value:
220: empty_value /* optimized $var() case */
221: | STRING /* optimized $var(STRING) case */
222: | complex_constructor_param_value /* $var(something complex) */
1.1 paf 223: ;
224: complex_constructor_param_value: complex_constructor_param_body {
1.25 paf 225: $$=N(POOL);
1.3 paf 226: OP($$, OP_CREATE_EWPOOL); /* stack: empty write context */
1.9 paf 227: P($$, $1); /* some codes to that context */
228: OP($$, OP_REDUCE_EWPOOL); /* context=pop; stack: context.value() */
1.1 paf 229: };
1.27 paf 230: complex_constructor_param_body: codes__excluding_sole_str_literal;
231: codes__excluding_sole_str_literal: action | code codes { $$=$1; P($$, $2) };
232:
1.32 paf 233: constructor_two_params_value: STRING ';' constructor_one_param_value {
1.38 paf 234: char *operator_or_fmt=SLA2S($1)->cstr();
1.25 paf 235: $$=N(POOL);
1.9 paf 236: P($$, $1); /* stack: ncontext name operator_or_fmt */
1.3 paf 237: P($$, $3); /* stack: ncontext name operator_or_fmt expr */
1.1 paf 238: switch(operator_or_fmt[0]) {
239: case '=': case '%':
1.3 paf 240: OP($$, OP_EXPRESSION_EVAL);
1.1 paf 241: break;
242: case '+': case '-': case '*': case '/':
1.3 paf 243: OP($$, OP_MODIFY_EVAL);
1.1 paf 244: break;
245: default:
1.6 paf 246: strcpy(PC->error, "invalid modification operator");
247: YYERROR;
1.1 paf 248: }
249: /* stack: ncontext name value */
250: };
251:
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;
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: }
1.33 paf 281: | complex_constructor_param_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: }
348: $$=CL(vclass); // vclass
1.1 paf 349: };
350:
351:
352: /* with */
353:
354: with: '$' name_without_curly_rdive '{' codes '}' {
355: $$=$2;
1.9 paf 356: OP($$, OP_CREATE_RWPOOL);
357: P($$, $4);
358: OP($$, OP_REDUCE_RWPOOL);
1.17 paf 359: OP($$, OP_WRITE);
1.1 paf 360: };
361:
1.27 paf 362: /* basics */
1.1 paf 363:
1.4 paf 364: write_str_literal: STRING {
1.38 paf 365: if(SLA2S($1)->size()) {
1.30 paf 366: $$=$1;
367: OP($$, OP_WRITE);
368: } else {
369: // optimized case of special end of macro. see yylex
370: $$=N(POOL);
371: }
1.26 paf 372: };
1.38 paf 373: empty_value: /* empty */ { $$=SL(NEW VString(POOL)) };
1.25 paf 374: empty: /* empty */ { $$=N(POOL) };
1.1 paf 375:
376: %%
377:
378: /*
379: 000$111(2222)00
380: 000$111{3333}00
1.9 paf 381: $,^: push,=0
1.1 paf 382: 1:( { break=pop
383: 2:( ) pop
384: 3:{ } pop
385:
386: 000^111(2222)4444{33333}4000
1.9 paf 387: $,^: push,=0
1.1 paf 388: 1:( { break=pop
389: 2:( )=4
390: 3:{ }=4
391: 4:[^({]=pop
392: */
393:
394: int yylex(YYSTYPE *lvalp, void *pc) {
395: #define lexical_brackets_nestage PC->brackets_nestages[PC->sp]
396:
397: register int c;
398: int result;
399:
400: if(PC->pending_state) {
401: result=PC->pending_state;
402: PC->pending_state=0;
403: return result;
404: }
405:
1.9 paf 406: char *begin=PC->source;
407: char *end;
408: int begin_line=PC->line;
1.1 paf 409: while(1) {
1.9 paf 410: c=*(end=(PC->source++));
1.1 paf 411:
1.4 paf 412: if(c=='\n') {
1.1 paf 413: PC->line++;
1.8 paf 414: PC->col=0;
1.10 paf 415: } else
1.4 paf 416: PC->col++;
1.1 paf 417:
1.40 paf 418: // escaping: ^^ ^$ ^; ^) ^} ^( ^{
1.1 paf 419: if(c=='^') {
1.40 paf 420: char next_c=*PC->source;
1.1 paf 421:
1.40 paf 422: if(next_c=='^' || next_c=='$' || next_c==';' ||
423: next_c=='(' || next_c==')' ||
424: next_c=='{' || next_c=='}') {
425: if(end!=begin) {
426: // append piece till ^
427: PC->string->APPEND(begin, end-begin, PC->file, begin_line);
428: }
429: // reset piece 'start' position & line
430: begin=PC->source; // ^
1.9 paf 431: begin_line=PC->line;
1.40 paf 432: // skip over ^ and _
433: PC->source++;
434: // skip analysis = forced literal
1.1 paf 435: continue;
436: }
437: }
438: switch(PC->ls) {
1.10 paf 439:
440: // USER'S = NOT OURS
1.1 paf 441: case LS_USER:
442: if(c=='$') {
1.10 paf 443: push_LS(PC, LS_VAR_NAME_SIMPLE);
1.1 paf 444: result=c;
445: goto break2;
446: }
447: if(c=='^') {
1.10 paf 448: push_LS(PC, LS_METHOD_NAME);
449: result=c;
450: goto break2;
451: }
452: if(c=='@' && PC->col==0+1) {
1.1 paf 453: result=c;
1.10 paf 454: push_LS(PC, LS_DEF_NAME);
455: goto break2;
456: }
457:
458: break;
459:
460: // METHOD DEFINITION
461: case LS_DEF_NAME:
462: if(c=='[') {
463: result=c;
464: PC->ls=LS_DEF_PARAMS;
465: goto break2;
466: }
1.37 paf 467: if(c=='\n') {
1.10 paf 468: result=c;
1.37 paf 469: PC->ls=LS_SPEC_CODE;
1.10 paf 470: goto break2;
471: }
472: break;
473: case LS_DEF_PARAMS:
474: if(c==';') {
475: result=c;
476: goto break2;
477: }
478: if(c==']') {
479: result=c;
480: PC->ls=*PC->source=='['?LS_DEF_LOCALS:LS_DEF_COMMENT;
481: goto break2;
482: }
483: if(c=='\n') { // wrong. bailing out
484: result=c;
485: pop_LS(PC);
486: goto break2;
487: }
488: break;
489: case LS_DEF_LOCALS:
490: if(c=='[' || c==';') {
491: result=c;
492: goto break2;
493: }
494: if(c==']') {
495: result=c;
496: PC->ls=LS_DEF_COMMENT;
497: goto break2;
498: }
499: if(c=='\n') { // wrong. bailing out
500: result=c;
501: pop_LS(PC);
502: goto break2;
503: }
504: break;
505: case LS_DEF_COMMENT:
506: if(c=='\n') {
507: result=c;
508: pop_LS(PC);
1.37 paf 509: goto break2;
510: }
511: break;
512:
513: case LS_SPEC_CODE:
514: if(c=='\n') {
515: result=c;
516: if(*PC->source=='@' || *PC->source==0) // end of special_code
517: pop_LS(PC);
1.1 paf 518: goto break2;
519: }
520: break;
521:
1.10 paf 522: // VARIABLE GET/PUT/WITH
1.1 paf 523: case LS_VAR_NAME_SIMPLE:
524: if(c==0 ||
525: c==' '|| c=='\t' || c=='\n' ||
526: c==')' || c=='}') {
527: pop_LS(PC);
1.32 paf 528: PC->source--; if(--PC->col<0) { PC->line--; PC->col=-1; }
1.13 paf 529: result=EON;
1.1 paf 530: goto break2;
531: }
1.13 paf 532: if(begin==end && c=='{') { /* ${name}, no need of EON, switching LS */
1.1 paf 533: PC->ls=LS_VAR_NAME_CURLY;
534: result=c;
535: goto break2;
536: }
537: if(c=='(') {
538: PC->ls=LS_VAR_ROUND;
539: lexical_brackets_nestage=1;
540: result=c;
541: goto break2;
542: }
543: if(c=='{') {
544: PC->ls=LS_VAR_CURLY;
545: lexical_brackets_nestage=1;
546: result=c;
547: goto break2;
548: }
1.39 paf 549: if(c=='.'/* name part delim */ ||
550: c=='$'/* name part subvar */ ||
551: c==':'/* ':name' or 'class:name' */) {
1.1 paf 552: result=c;
553: goto break2;
554: }
555: break;
556: case LS_VAR_NAME_CURLY:
557: if(c=='}') { /* ${name} finished, restoring LS */
558: pop_LS(PC);
559: result=c;
560: goto break2;
561: }
1.39 paf 562: if(c=='.'/* name part delim */ ||
563: c=='$'/*name part subvar*/ ||
564: c==':'/* ':name' or 'class:name' */) {
1.1 paf 565: result=c;
566: goto break2;
567: }
568: break;
569: case LS_VAR_ROUND:
570: if(c=='$') {
1.10 paf 571: push_LS(PC, LS_VAR_NAME_SIMPLE);
1.1 paf 572: result=c;
573: goto break2;
574: }
575: if(c=='^') {
1.10 paf 576: push_LS(PC, LS_METHOD_NAME);
1.1 paf 577: result=c;
578: goto break2;
579: }
580: if(c==')') {
581: if(--lexical_brackets_nestage==0) {
582: pop_LS(PC);
583: result=c;
584: goto break2;
585: }
586: }
587: if(c==';'/* operator_or_fmt;value delim */) {
588: result=c;
589: goto break2;
590: }
591: if(c=='(')
592: lexical_brackets_nestage++;
593: break;
594: case LS_VAR_CURLY:
595: if(c=='$') {
1.10 paf 596: push_LS(PC, LS_VAR_NAME_SIMPLE);
1.1 paf 597: result=c;
598: goto break2;
599: }
600: if(c=='^') {
1.10 paf 601: push_LS(PC, LS_METHOD_NAME);
1.1 paf 602: result=c;
603: goto break2;
604: }
605: if(c=='}')
606: if(--lexical_brackets_nestage==0) {
607: pop_LS(PC);
608: result=c;
609: goto break2;
610: }
611: if(c=='{')
612: lexical_brackets_nestage++;
613: break;
614:
1.10 paf 615: // METHOD CALL
1.1 paf 616: case LS_METHOD_NAME:
617: if(c=='(') {
618: PC->ls=LS_METHOD_ROUND;
619: lexical_brackets_nestage=1;
620: result=c;
621: goto break2;
622: }
623: if(c=='{') {
624: PC->ls=LS_METHOD_CURLY;
625: lexical_brackets_nestage=1;
626: result=c;
627: goto break2;
628: }
1.39 paf 629: if(c=='.'/* name part delim */ ||
630: c=='$'/* name part subvar */ ||
631: c==':'/* ':name' or 'class:name' */) {
1.1 paf 632: result=c;
633: goto break2;
634: }
635: break;
636: case LS_METHOD_ROUND:
637: if(c=='$') {
1.10 paf 638: push_LS(PC, LS_VAR_NAME_SIMPLE);
1.1 paf 639: result=c;
640: goto break2;
641: }
642: if(c=='^') {
1.10 paf 643: push_LS(PC, LS_METHOD_NAME);
1.1 paf 644: result=c;
645: goto break2;
646: }
647: if(c==';'/* param delim */) {
648: result=c;
649: goto break2;
650: }
651: if(c==')')
652: if(--lexical_brackets_nestage==0) {
653: PC->ls=LS_METHOD_AFTER;
654: result=c;
655: goto break2;
656: }
657: if(c=='(')
658: lexical_brackets_nestage++;
659: break;
660: case LS_METHOD_CURLY:
661: if(c=='$') {
1.10 paf 662: push_LS(PC, LS_VAR_NAME_SIMPLE);
1.1 paf 663: result=c;
664: goto break2;
665: }
666: if(c=='^') {
1.10 paf 667: push_LS(PC, LS_METHOD_NAME);
1.1 paf 668: result=c;
669: goto break2;
670: }
671: if(c=='}')
672: if(--lexical_brackets_nestage==0) {
673: PC->ls=LS_METHOD_AFTER;
674: result=c;
675: goto break2;
676: }
677: if(c=='{')
678: lexical_brackets_nestage++;
679: break;
680: case LS_METHOD_AFTER:
681: if(c=='(') {/* )( }( */
682: PC->ls=LS_METHOD_ROUND;
683: lexical_brackets_nestage=1;
684: result=c;
685: goto break2;
686: }
687: if(c=='{') {/* ){ }{ */
688: PC->ls=LS_METHOD_CURLY;
689: lexical_brackets_nestage=1;
690: result=c;
691: goto break2;
692: }
693: pop_LS(PC);
1.32 paf 694: PC->source--; if(--PC->col<0) { PC->line--; PC->col=-1; }
1.13 paf 695: result=EON;
1.1 paf 696: goto break2;
697: }
1.9 paf 698: if(c==0) {
1.1 paf 699: result=-1;
700: break;
701: }
702: }
703:
704: break2:
1.9 paf 705: if(begin==end)
1.1 paf 706: return result;
707: else {
708: PC->pending_state=result;
1.10 paf 709: // strip last \n before LS_DEF_NAME or EOF
710: if((c=='@' || c==0) && end[-1]=='\n')
711: end--;
1.30 paf 712: if(end!=begin) {
713: // append last piece
714: PC->string->APPEND(begin, end-begin, PC->file, begin_line/*, start_col*/);
715: }
1.17 paf 716: // create STRING value: array of OP_VALUE+vstring
1.38 paf 717: *lvalp=SL(NEW VString(PC->string));
1.10 paf 718: // new pieces storage
1.25 paf 719: PC->string=NEW String(POOL);
1.10 paf 720: // go!
1.4 paf 721: return STRING;
1.1 paf 722: }
723: }
724:
1.9 paf 725: int real_yyerror(parse_control *pc, char *s) /* Called by yyparse on error */
1.1 paf 726: {
1.16 paf 727: //fprintf(stderr, "[%s]\n", s);
1.6 paf 728:
729: s[MAX_STRING-1]=0; strcpy(pc->error, s);
1.1 paf 730: return 1;
731: }
732:
733: static void
1.9 paf 734: yyprint(
1.1 paf 735: FILE *file,
736: int type,
737: YYSTYPE value)
738: {
1.9 paf 739: if(type==STRING)
1.38 paf 740: fprintf(file, " \"%s\"", SLA2S(value)->cstr());
1.1 paf 741: }
742: