Annotation of parser3/src/main/compile.y, revision 1.185
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:
1.185 ! paf 8: $Id: compile.y,v 1.184 2002/04/15 08:13:09 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($$, $2) };
1.81 paf 236: code: write_string | action;
1.149 parser 237: action: get | put | call;
1.1 paf 238:
239: /* get */
240:
1.64 paf 241: get: get_value {
1.184 paf 242: $$=$1; /* stack: resulting value */
243: changetail_or_append($$,
244: OP_GET_ELEMENT, OP_GET_ELEMENT__WRITE,
245: OP_WRITE_VALUE
246: ); /* value=pop; wcontext.write(value) */
1.1 paf 247: };
1.163 parser 248: get_value: '$' get_name_value { $$=$2 };
1.64 paf 249: get_name_value: name_without_curly_rdive EON | name_in_curly_rdive;
1.1 paf 250: name_in_curly_rdive: '{' name_without_curly_rdive '}' { $$=$2 };
1.44 paf 251: name_without_curly_rdive:
252: name_without_curly_rdive_read
253: | name_without_curly_rdive_class;
1.19 paf 254: name_without_curly_rdive_read: name_without_curly_rdive_code {
1.25 paf 255: $$=N(POOL);
1.22 paf 256: Array *diving_code=$1;
1.120 paf 257: const String *first_name=LA2S(diving_code);
1.179 paf 258: // self.xxx... -> xxx...
259: // OP_VALUE+string+OP_GET_ELEMENT+... -> OP_WITH_SELF+...
1.85 paf 260: if(first_name && *first_name==SELF_ELEMENT_NAME) {
1.54 paf 261: O($$, OP_WITH_SELF); /* stack: starting context */
1.22 paf 262: P($$, diving_code,
263: /* skip over... */
1.179 paf 264: diving_code->size()>=3?3/*OP_VALUE+string+OP_GET_ELEMENTx*/:2/*OP_+string*/);
1.22 paf 265: } else {
1.54 paf 266: O($$, OP_WITH_READ); /* stack: starting context */
1.179 paf 267:
268: // ^if ELEMENT -> ^if ELEMENT_OR_OPERATOR
269: // OP_VALUE+string+OP_GET_ELEMENT. -> OP_VALUE+string+OP_GET_ELEMENT_OR_OPERATOR.
1.180 paf 270: if(PC.in_call_value && diving_code->size()==3)
1.179 paf 271: diving_code->put_int(2, OP_GET_ELEMENT_OR_OPERATOR);
1.22 paf 272: P($$, diving_code);
273: }
274: /* diving code; stack: current context */
1.1 paf 275: };
1.155 parser 276: name_without_curly_rdive_class: class_prefix name_without_curly_rdive_code { $$=$1; P($$, $2) };
1.19 paf 277: name_without_curly_rdive_code: name_advance2 | name_path name_advance2 { $$=$1; P($$, $2) };
1.1 paf 278:
279: /* put */
280:
1.81 paf 281: put: '$' name_expr_wdive construct {
1.20 paf 282: $$=$2; /* stack: context,name */
1.52 paf 283: P($$, $3); /* stack: context,name,constructor_value */
1.20 paf 284: };
1.44 paf 285: name_expr_wdive:
1.157 parser 286: name_expr_wdive_root
287: | name_expr_wdive_write
1.44 paf 288: | name_expr_wdive_class;
1.157 parser 289: name_expr_wdive_root: name_expr_dive_code {
1.44 paf 290: $$=N(POOL);
1.23 paf 291: Array *diving_code=$1;
1.120 paf 292: const String *first_name=LA2S(diving_code);
1.179 paf 293: // $self.xxx... -> $xxx...
294: // OP_VALUE+string+OP_GET_ELEMENT+... -> OP_WITH_SELF+...
1.85 paf 295: if(first_name && *first_name==SELF_ELEMENT_NAME) {
1.54 paf 296: O($$, OP_WITH_SELF); /* stack: starting context */
1.23 paf 297: P($$, diving_code,
298: /* skip over... */
1.179 paf 299: diving_code->size()>=3?3/*OP_VALUE+string+OP_GET_ELEMENTx*/:2/*OP_+string*/);
1.23 paf 300: } else {
1.157 parser 301: O($$, OP_WITH_ROOT); /* stack: starting context */
1.23 paf 302: P($$, diving_code);
303: }
304: /* diving code; stack: current context */
1.156 parser 305: };
1.157 parser 306: name_expr_wdive_write: '.' name_expr_dive_code {
1.156 parser 307: $$=N(POOL);
1.157 parser 308: O($$, OP_WITH_WRITE); /* stack: starting context */
1.156 parser 309: P($$, $2); /* diving code; stack: context,name */
1.20 paf 310: };
1.155 parser 311: name_expr_wdive_class: class_prefix name_expr_dive_code { $$=$1; P($$, $2) };
1.20 paf 312:
1.149 parser 313: construct:
1.163 parser 314: construct_square
315: | construct_round
316: | construct_curly
1.149 parser 317: ;
318: construct_square: '[' any_constructor_code_value ']' {
319: // stack: context, name
320: $$=$2; // stack: context, name, value
1.81 paf 321: O($$, OP_CONSTRUCT_VALUE); /* value=pop; name=pop; context=pop; construct(context,name,value) */
322: }
323: ;
1.149 parser 324: construct_round: '(' expr_value ')' {
1.182 paf 325: $$=N(POOL);
326: O($$, OP_PREPARE_TO_EXPRESSION);
1.149 parser 327: // stack: context, name
1.182 paf 328: P($$, $2); // stack: context, name, value
1.163 parser 329: O($$, OP_CONSTRUCT_EXPR); /* value=pop->as_expr_result; name=pop; context=pop; construct(context,name,value) */
1.81 paf 330: }
1.52 paf 331: ;
1.149 parser 332: construct_curly: '{' maybe_codes '}' {
333: // stack: context, name
334: $$=N(POOL);
335: CCA($$, $2); /* code=pop; name=pop; context=pop; construct(context,name,junction(code)) */
336: };
337:
1.55 paf 338: any_constructor_code_value:
1.157 parser 339: void_value /* optimized $var[] case */
1.52 paf 340: | STRING /* optimized $var[STRING] case */
1.55 paf 341: | constructor_code_value /* $var[something complex] */
1.1 paf 342: ;
1.55 paf 343: constructor_code_value: constructor_code {
1.25 paf 344: $$=N(POOL);
1.183 paf 345: PJP($$, $1); /* stack: empty write context */
346: /* some code that writes to that context */
347: /* context=pop; stack: context.value() */
1.1 paf 348: };
1.55 paf 349: constructor_code: codes__excluding_sole_str_literal;
1.27 paf 350: codes__excluding_sole_str_literal: action | code codes { $$=$1; P($$, $2) };
351:
1.1 paf 352: /* call */
353:
1.66 paf 354: call: call_value {
355: $$=$1; /* stack: value */
1.185 ! paf 356: changetail_or_append($$,
! 357: OP_CALL, OP_CALL__WRITE,
! 358: OP_WRITE_VALUE
! 359: ); /* value=pop; wcontext.write(value) */
1.66 paf 360: };
1.177 paf 361: call_value: '^' {
1.180 paf 362: PC.in_call_value=true;
1.177 paf 363: }
364: call_name {
1.180 paf 365: PC.in_call_value=false;
1.177 paf 366: }
1.154 parser 367: store_params EON { /* ^field.$method{vasya} */
368: $$=$3; /* with_xxx,diving code; stack: context,method_junction */
1.54 paf 369: O($$, OP_GET_METHOD_FRAME); /* stack: context,method_frame */
1.123 paf 370:
1.154 parser 371: YYSTYPE params_code=$5;
1.140 parser 372: if(params_code->size()==3) // probably [] case. [OP_VALUE + Void + STORE_PARAM]
1.123 paf 373: if(Value *value=LA2V(params_code)) // it is OP_VALUE + value?
1.140 parser 374: if(!value->is_defined()) // value is VVoid?
1.123 paf 375: params_code=0; // ^zzz[] case. don't append lone empty param.
376: if(params_code)
377: P($$, params_code); // filling method_frame.store_params
1.155 parser 378: O($$, OP_CALL); // method_frame=pop; ncontext=pop; call(ncontext,method_frame) stack: value
1.1 paf 379: };
380:
1.43 paf 381: call_name: name_without_curly_rdive;
1.38 paf 382:
1.9 paf 383: store_params: store_param | store_params store_param { $$=$1; P($$, $2) };
1.69 paf 384: store_param:
385: store_square_param
386: | store_round_param
387: | store_curly_param
1.31 paf 388: ;
1.123 paf 389: store_square_param: '[' store_code_param_parts ']' {$$=$2};
1.69 paf 390: store_round_param: '(' store_expr_param_parts ')' {$$=$2};
1.94 paf 391: store_curly_param: '{' store_curly_param_parts '}' {$$=$2};
1.69 paf 392: store_code_param_parts:
393: store_code_param_part
394: | store_code_param_parts ';' store_code_param_part { $$=$1; P($$, $3) }
395: ;
396: store_expr_param_parts:
397: store_expr_param_part
398: | store_expr_param_parts ';' store_expr_param_part { $$=$1; P($$, $3) }
399: ;
1.94 paf 400: store_curly_param_parts:
401: store_curly_param_part
402: | store_curly_param_parts ';' store_curly_param_part { $$=$1; P($$, $3) }
403: ;
1.120 paf 404: store_code_param_part: code_param_value {
1.32 paf 405: $$=$1;
1.54 paf 406: O($$, OP_STORE_PARAM);
1.120 paf 407: };
1.69 paf 408: store_expr_param_part: write_expr_value {
409: $$=N(POOL);
1.103 paf 410: PEA($$, $1);
1.69 paf 411: };
1.94 paf 412: store_curly_param_part: maybe_codes {
413: $$=N(POOL);
414: PCA($$, $1);
415: };
1.120 paf 416: code_param_value:
1.157 parser 417: void_value /* optimized [;...] case */
1.120 paf 418: | STRING /* optimized [STRING] case */
419: | constructor_code_value /* [something complex] */
420: ;
1.90 paf 421: write_expr_value: expr_value {
1.182 paf 422: $$=N(POOL);
423: O($$, OP_PREPARE_TO_EXPRESSION);
424: P($$, $1);
1.102 paf 425: O($$, OP_WRITE_EXPR_RESULT);
1.69 paf 426: };
1.1 paf 427:
428: /* name */
429:
1.20 paf 430: name_expr_dive_code: name_expr_value | name_path name_expr_value { $$=$1; P($$, $2) };
1.1 paf 431:
1.9 paf 432: name_path: name_step | name_path name_step { $$=$1; P($$, $2) };
1.1 paf 433: name_step: name_advance1 '.';
434: name_advance1: name_expr_value {
1.177 paf 435: // we know that name_advance1 not called from ^xxx context
436: // so we'll not check for operator call possibility as we do in name_advance2
437:
1.1 paf 438: /* stack: context */
439: $$=$1; /* stack: context,name */
1.54 paf 440: O($$, OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */
1.1 paf 441: };
442: name_advance2: name_expr_value {
443: /* stack: context */
444: $$=$1; /* stack: context,name */
1.179 paf 445: O($$, OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */
1.1 paf 446: }
1.4 paf 447: | STRING BOGUS
1.1 paf 448: ;
449: name_expr_value:
1.4 paf 450: STRING /* subname_is_const */
1.1 paf 451: | name_expr_subvar_value /* $subname_is_var_value */
1.160 parser 452: | name_expr_with_subvar_value /* xxx$part_of_subname_is_var_value */
1.166 parser 453: | name_square_code_value /* [codes] */
1.1 paf 454: ;
455: name_expr_subvar_value: '$' subvar_ref_name_rdive {
456: $$=$2;
1.54 paf 457: O($$, OP_GET_ELEMENT);
1.1 paf 458: };
1.4 paf 459: name_expr_with_subvar_value: STRING subvar_get_writes {
1.183 paf 460: Array *code;
461: {
462: change_string_literal_to_write_string_literal(code=$1);
463: P(code, $2);
464: }
1.25 paf 465: $$=N(POOL);
1.183 paf 466: PSP($$, code);
1.1 paf 467: };
1.166 parser 468: name_square_code_value: '[' codes ']' {
1.160 parser 469: $$=N(POOL);
1.183 paf 470: PJP($$, $2); /* stack: empty write context */
471: /* some code that writes to that context */
472: /* context=pop; stack: context.value() */
1.160 parser 473: };
1.154 parser 474: subvar_ref_name_rdive: STRING {
1.25 paf 475: $$=N(POOL);
1.54 paf 476: O($$, OP_WITH_READ);
1.9 paf 477: P($$, $1);
1.1 paf 478: };
1.9 paf 479: subvar_get_writes: subvar__get_write | subvar_get_writes subvar__get_write { $$=$1; P($$, $2) };
1.1 paf 480: subvar__get_write: '$' subvar_ref_name_rdive {
481: $$=$2;
1.54 paf 482: O($$, OP_GET_ELEMENT__WRITE);
1.42 paf 483: };
484:
1.154 parser 485: class_prefix:
486: class_static_prefix
487: | class_constructor_prefix
488: ;
1.155 parser 489: class_static_prefix: STRING ':' {
490: $$=$1; // stack: class name string
491: O($$, OP_GET_CLASS);
492: };
493: class_constructor_prefix: class_static_prefix ':' {
1.154 parser 494: $$=$1;
1.180 paf 495: if(!PC.in_call_value) {
1.154 parser 496: strcpy(PC.error, ":: not allowed here");
497: YYERROR;
498: }
1.155 parser 499: O($$, OP_PREPARE_TO_CONSTRUCT_OBJECT);
1.1 paf 500: };
501:
1.53 paf 502:
1.56 paf 503: /* expr */
1.53 paf 504:
1.81 paf 505: expr_value: expr {
1.182 paf 506: // see OP_PREPARE_TO_EXPRESSION!!
1.81 paf 507: if(($$=$1)->size()==2) // only one string literal in there?
1.62 paf 508: change_string_literal_to_double_literal($$); // make that string literal Double
509: };
1.56 paf 510: expr:
1.62 paf 511: STRING
1.64 paf 512: | get_value
1.66 paf 513: | call_value
1.64 paf 514: | '"' string_inside_quotes_value '"' { $$ = $2; }
1.145 parser 515: | '\'' string_inside_quotes_value '\'' { $$ = $2; }
1.60 paf 516: | '(' expr ')' { $$ = $2; }
517: /* stack: operand // stack: @operand */
518: | '-' expr %prec NEG { $$=$2; O($$, OP_NEG) }
1.166 parser 519: | '+' expr %prec NEG { $$=$2 }
1.68 paf 520: | '~' expr { $$=$2; O($$, OP_INV) }
521: | '!' expr { $$=$2; O($$, OP_NOT) }
522: | "def" expr { $$=$2; O($$, OP_DEF) }
523: | "in" expr { $$=$2; O($$, OP_IN) }
524: | "-f" expr { $$=$2; O($$, OP_FEXISTS) }
1.127 paf 525: | "-d" expr { $$=$2; O($$, OP_DEXISTS) }
1.60 paf 526: /* stack: a,b // stack: a@b */
527: | expr '-' expr { $$=$1; P($$, $3); O($$, OP_SUB) }
528: | expr '+' expr { $$=$1; P($$, $3); O($$, OP_ADD) }
529: | expr '*' expr { $$=$1; P($$, $3); O($$, OP_MUL) }
530: | expr '/' expr { $$=$1; P($$, $3); O($$, OP_DIV) }
531: | expr '%' expr { $$=$1; P($$, $3); O($$, OP_MOD) }
1.173 paf 532: | expr '\\' expr { $$=$1; P($$, $3); O($$, OP_INTDIV) }
1.60 paf 533: | expr '&' expr { $$=$1; P($$, $3); O($$, OP_BIN_AND) }
534: | expr '|' expr { $$=$1; P($$, $3); O($$, OP_BIN_OR) }
535: | expr '#' expr { $$=$1; P($$, $3); O($$, OP_BIN_XOR) }
1.174 paf 536: | expr "&&" expr { $$=$1; PNC($$, $3); O($$, OP_LOG_AND) }
537: | expr "||" expr { $$=$1; PNC($$, $3); O($$, OP_LOG_OR) }
1.60 paf 538: | expr "##" expr { $$=$1; P($$, $3); O($$, OP_LOG_XOR) }
539: | expr '<' expr { $$=$1; P($$, $3); O($$, OP_NUM_LT) }
540: | expr '>' expr { $$=$1; P($$, $3); O($$, OP_NUM_GT) }
541: | expr "<=" expr { $$=$1; P($$, $3); O($$, OP_NUM_LE) }
542: | expr ">=" expr { $$=$1; P($$, $3); O($$, OP_NUM_GE) }
543: | expr "==" expr { $$=$1; P($$, $3); O($$, OP_NUM_EQ) }
544: | expr "!=" expr { $$=$1; P($$, $3); O($$, OP_NUM_NE) }
1.61 paf 545: | expr "lt" expr { $$=$1; P($$, $3); O($$, OP_STR_LT) }
546: | expr "gt" expr { $$=$1; P($$, $3); O($$, OP_STR_GT) }
547: | expr "le" expr { $$=$1; P($$, $3); O($$, OP_STR_LE) }
548: | expr "ge" expr { $$=$1; P($$, $3); O($$, OP_STR_GE) }
549: | expr "eq" expr { $$=$1; P($$, $3); O($$, OP_STR_EQ) }
550: | expr "ne" expr { $$=$1; P($$, $3); O($$, OP_STR_NE) }
1.95 paf 551: | expr "is" expr { $$=$1; P($$, $3); O($$, OP_IS) }
1.56 paf 552: ;
1.55 paf 553:
1.65 paf 554: string_inside_quotes_value: maybe_codes {
1.64 paf 555: $$=N(POOL);
1.183 paf 556: PSP($$, $1); /* stack: empty write context */
557: /* some code that writes to that context */
558: /* context=pop; stack: context.get_string() */
1.53 paf 559: };
1.1 paf 560:
1.27 paf 561: /* basics */
1.1 paf 562:
1.81 paf 563: write_string: STRING {
1.102 paf 564: // optimized from OP_STRING+OP_WRITE_VALUE to OP_STRING__WRITE
1.84 paf 565: change_string_literal_to_write_string_literal($$=$1)
1.54 paf 566: };
567:
1.157 parser 568: void_value: /* empty */ { $$=VL(NEW VVoid(POOL)) };
1.25 paf 569: empty: /* empty */ { $$=N(POOL) };
1.1 paf 570:
571: %%
1.105 paf 572: #endif
1.1 paf 573:
574: /*
575: 000$111(2222)00
576: 000$111{3333}00
1.9 paf 577: $,^: push,=0
1.1 paf 578: 1:( { break=pop
579: 2:( ) pop
580: 3:{ } pop
581:
582: 000^111(2222)4444{33333}4000
1.9 paf 583: $,^: push,=0
1.1 paf 584: 1:( { break=pop
585: 2:( )=4
586: 3:{ }=4
587: 4:[^({]=pop
588: */
589:
1.110 paf 590: static int yylex(YYSTYPE *lvalp, void *pc) {
1.177 paf 591: #define lexical_brackets_nestage PC.brackets_nestages[PC.ls_sp]
1.48 paf 592: #define RC {result=c; goto break2; }
1.1 paf 593:
594: register int c;
595: int result;
596:
1.114 paf 597: if(PC.pending_state) {
598: result=PC.pending_state;
599: PC.pending_state=0;
1.1 paf 600: return result;
601: }
602:
1.114 paf 603: const char *begin=PC.source;
1.91 paf 604: const char *end;
1.114 paf 605: int begin_line=PC.line;
1.67 paf 606: int skip_analized=0;
1.50 paf 607: while(true) {
1.114 paf 608: c=*(end=(PC.source++));
1.166 parser 609: // fprintf(stderr, "\nchar: %c %02X; nestage: %d, sp=%d", c, c, lexical_brackets_nestage, PC.sp);
1.1 paf 610:
1.4 paf 611: if(c=='\n') {
1.114 paf 612: PC.line++;
613: PC.col=0;
1.10 paf 614: } else
1.114 paf 615: PC.col++;
1.73 paf 616:
1.171 parser 617: if(c=='@' && PC.col==0+1) {
1.175 paf 618: if(PC.ls==LS_DEF_SPECIAL_BODY) {
619: // @SPECIAL
620: // ...
621: // @<here =
622: pop_LS(PC); // exiting from LS_DEF_SPECIAL_BODY state
623: } // continuing checks
1.171 parser 624: if(PC.ls==LS_USER) {
625: push_LS(PC, LS_DEF_NAME);
626: RC;
1.175 paf 627: } else // @ in first column inside some code [when could that be?]
1.171 parser 628: result=BAD_METHOD_DECL_START;
629: goto break2;
630: } else if(c=='^')
1.169 parser 631: switch(PC.ls) {
632: case LS_EXPRESSION_VAR_NAME_WITH_COLON:
633: case LS_EXPRESSION_VAR_NAME_WITHOUT_COLON:
634: case LS_VAR_NAME_SIMPLE_WITH_COLON:
635: case LS_VAR_NAME_SIMPLE_WITHOUT_COLON:
636: case LS_VAR_NAME_CURLY:
637: case LS_METHOD_NAME:
638: case LS_COMMENT:
639: case LS_DEF_COMMENT:
640: // no literals in names, please
641: break;
642: default:
1.114 paf 643: switch(*PC.source) {
1.165 parser 644: // ^escaping some punctuators
1.48 paf 645: case '^': case '$': case ';':
1.126 paf 646: case '(': case ')':
1.48 paf 647: case '[': case ']':
648: case '{': case '}':
1.172 parser 649: case '"': case ':':
1.40 paf 650: if(end!=begin) {
651: // append piece till ^
1.121 paf 652: PC.string->APPEND_CLEAN(begin, end-begin, PC.file, begin_line);
1.40 paf 653: }
1.63 paf 654: // reset piece 'begin' position & line
1.164 parser 655: end=begin=PC.source; // ^
1.114 paf 656: begin_line=PC.line;
1.164 parser 657: if(PC.ls==LS_METHOD_AFTER) {
658: pop_LS(PC);
659: result=EON;
1.165 parser 660: skip_analized=-1; // return to ^ afterwards to assure it's literality
1.164 parser 661: goto break2;
662: } else {
663: // skip over _ after ^
664: PC.source++; PC.col++;
665: // skip analysis = forced literal
666: continue;
667: }
1.114 paf 668:
669: // converting ^#HH into char(hex(HH))
670: case '#':
671: if(end!=begin) {
672: // append piece till ^
1.121 paf 673: PC.string->APPEND_CLEAN(begin, end-begin, PC.file, begin_line);
1.114 paf 674: }
675: // #HH ?
676: if(PC.source[0]=='#' && PC.source[1] && PC.source[2]) {
677: char *hex=(char *)POOL.malloc(1);
678: hex[0]=
679: hex_value[(unsigned char)PC.source[1]]*0x10+
680: hex_value[(unsigned char)PC.source[2]];
681: if(hex[0]==0) {
682: result=BAD_HEX_LITERAL;
683: goto break2; // wrong hex value[no ^#00 chars allowed]: bail out
684: }
685: // append char(hex(HH))
1.121 paf 686: PC.string->APPEND_CLEAN(hex, 1, PC.file, begin_line);
1.114 paf 687: // skip over ^#HH
688: PC.source+=3;
689: PC.col+=3;
690: // reset piece 'begin' position & line
691: begin=PC.source; // ^
692: begin_line=PC.line;
693: continue;
694: }
695: break;
1.1 paf 696: }
1.169 parser 697: break;
698: }
1.113 paf 699: // #comment start skipping
1.114 paf 700: if(c=='#' && PC.col==1) {
1.112 paf 701: if(end!=begin) {
702: // append piece till #
1.121 paf 703: PC.string->APPEND_CLEAN(begin, end-begin, PC.file, begin_line);
1.112 paf 704: }
705: // fall into COMMENT lexical state [wait for \n]
706: push_LS(PC, LS_COMMENT);
1.175 paf 707: continue;
1.112 paf 708: }
1.114 paf 709: switch(PC.ls) {
1.10 paf 710:
711: // USER'S = NOT OURS
1.1 paf 712: case LS_USER:
1.166 parser 713: case LS_NAME_SQUARE_PART: // name.[here].xxx
1.153 parser 714: if(PC.trim_bof)
715: switch(c) {
716: case '\n': case ' ': case '\t':
1.152 parser 717: begin=PC.source;
718: begin_line=PC.line;
719: continue; // skip it
1.153 parser 720: default:
721: PC.trim_bof=false;
1.152 parser 722: }
1.48 paf 723: switch(c) {
724: case '$':
1.166 parser 725: push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 726: RC;
727: case '^':
728: push_LS(PC, LS_METHOD_NAME);
729: RC;
1.166 parser 730: case ']':
731: if(PC.ls==LS_NAME_SQUARE_PART)
732: if(--lexical_brackets_nestage==0) {// $name.[co<]?>de<]?>
733: pop_LS(PC); // $name.[co<]>de<]!>
734: RC;
735: }
1.160 parser 736: break;
1.166 parser 737: case '[': // $name.[co<[>de]
738: if(PC.ls==LS_NAME_SQUARE_PART)
739: lexical_brackets_nestage++;
1.161 parser 740: break;
1.112 paf 741: }
742: break;
743:
744: // #COMMENT
745: case LS_COMMENT:
746: if(c=='\n') {
747: // skip comment
1.114 paf 748: begin=PC.source;
749: begin_line=PC.line;
1.112 paf 750:
751: pop_LS(PC);
752: continue;
1.1 paf 753: }
1.48 paf 754: break;
755:
756: // STRING IN EXPRESSION
1.145 parser 757: case LS_EXPRESSION_STRING_QUOTED:
758: case LS_EXPRESSION_STRING_APOSTROFED:
1.48 paf 759: switch(c) {
760: case '"':
1.145 parser 761: case '\'':
762: if(
763: PC.ls == LS_EXPRESSION_STRING_QUOTED && c=='"' ||
764: PC.ls == LS_EXPRESSION_STRING_APOSTROFED && c=='\'') {
765: pop_LS(PC); //"abc". | 'abc'.
766: RC;
767: }
768: break;
1.48 paf 769: case '$':
1.166 parser 770: push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 771: RC;
772: case '^':
1.10 paf 773: push_LS(PC, LS_METHOD_NAME);
1.48 paf 774: RC;
1.10 paf 775: }
776: break;
777:
778: // METHOD DEFINITION
779: case LS_DEF_NAME:
1.48 paf 780: switch(c) {
781: case '[':
1.114 paf 782: PC.ls=LS_DEF_PARAMS;
1.48 paf 783: RC;
784: case '\n':
1.114 paf 785: PC.ls=LS_DEF_SPECIAL_BODY;
1.48 paf 786: RC;
1.10 paf 787: }
788: break;
1.48 paf 789:
1.10 paf 790: case LS_DEF_PARAMS:
1.48 paf 791: switch(c) {
792: case ';':
793: RC;
794: case ']':
1.114 paf 795: PC.ls=*PC.source=='['?LS_DEF_LOCALS:LS_DEF_COMMENT;
1.48 paf 796: RC;
1.49 paf 797: case '\n': // wrong. bailing out
1.10 paf 798: pop_LS(PC);
1.48 paf 799: RC;
1.10 paf 800: }
801: break;
1.48 paf 802:
1.10 paf 803: case LS_DEF_LOCALS:
1.48 paf 804: switch(c) {
805: case '[':
806: case ';':
807: RC;
808: case ']':
1.114 paf 809: PC.ls=LS_DEF_COMMENT;
1.48 paf 810: RC;
811: case '\n': // wrong. bailing out
1.10 paf 812: pop_LS(PC);
1.48 paf 813: RC;
1.10 paf 814: }
815: break;
1.48 paf 816:
1.10 paf 817: case LS_DEF_COMMENT:
818: if(c=='\n') {
819: pop_LS(PC);
1.48 paf 820: RC;
1.37 paf 821: }
822: break;
823:
1.48 paf 824: case LS_DEF_SPECIAL_BODY:
1.175 paf 825: if(c=='\n')
1.48 paf 826: RC;
827: break;
828:
829: // (EXPRESSION)
1.69 paf 830: case LS_VAR_ROUND:
831: case LS_METHOD_ROUND:
1.48 paf 832: switch(c) {
833: case ')':
834: if(--lexical_brackets_nestage==0)
1.114 paf 835: if(PC.ls==LS_METHOD_ROUND) // method round param ended
836: PC.ls=LS_METHOD_AFTER; // look for method end
837: else // PC.ls==LS_VAR_ROUND // variable constructor ended
1.69 paf 838: pop_LS(PC); // return to normal life
1.48 paf 839: RC;
840: case '$':
1.166 parser 841: push_LS(PC, LS_EXPRESSION_VAR_NAME_WITH_COLON);
1.48 paf 842: RC;
843: case '^':
844: push_LS(PC, LS_METHOD_NAME);
845: RC;
846: case '(':
847: lexical_brackets_nestage++;
848: RC;
1.67 paf 849: case '-':
1.127 paf 850: switch(*PC.source) {
851: case 'f': // -f
1.67 paf 852: skip_analized=1;
853: result=FEXISTS;
1.127 paf 854: goto break2;
855: case 'd': // -d
856: skip_analized=1;
857: result=DEXISTS;
858: goto break2;
859: default:
1.67 paf 860: result=c;
1.127 paf 861: goto break2;
862: }
1.67 paf 863: goto break2;
1.173 paf 864: case '+': case '*': case '/': case '%': case '\\':
1.58 paf 865: case '~':
1.48 paf 866: case ';':
867: RC;
1.59 paf 868: case '&': case '|': case '#':
1.114 paf 869: if(*PC.source==c) { // && ||
1.59 paf 870: result=c=='#'?LXOR:c=='&'?LAND:LOR;
1.67 paf 871: skip_analized=1;
1.58 paf 872: } else
873: result=c;
874: goto break2;
875: case '<': case '>': case '=': case '!':
1.114 paf 876: if(*PC.source=='=') { // <= >= == !=
1.67 paf 877: skip_analized=1;
1.58 paf 878: switch(c) {
879: case '<': result=NLE; break;
880: case '>': result=NGE; break;
881: case '=': result=NEQ; break;
882: case '!': result=NNE; break;
883: }
884: } else
885: result=c;
886: goto break2;
1.48 paf 887: case '"':
1.145 parser 888: push_LS(PC, LS_EXPRESSION_STRING_QUOTED);
889: RC;
890: case '\'':
891: push_LS(PC, LS_EXPRESSION_STRING_APOSTROFED);
1.48 paf 892: RC;
1.50 paf 893: case 'l': case 'g': case 'e': case 'n':
1.51 paf 894: if(end==begin) // right after whitespace
1.117 paf 895: if(isspace(PC.source[1])) {
896: switch(*PC.source) {
897: // case '?': // ok [and bad cases, yacc would bark at them]
898: case 't': // lt gt [et nt]
899: result=c=='l'?SLT:c=='g'?SGT:BAD_STRING_COMPARISON_OPERATOR;
900: skip_analized=1;
901: goto break2;
902: case 'e': // le ge ne [ee]
903: result=c=='l'?SLE:c=='g'?SGE:c=='n'?SNE:BAD_STRING_COMPARISON_OPERATOR;
904: skip_analized=1;
905: goto break2;
906: case 'q': // eq [lq gq nq]
907: result=c=='e'?SEQ:BAD_STRING_COMPARISON_OPERATOR;
908: skip_analized=1;
909: goto break2;
910: }
1.67 paf 911: }
912: break;
913: case 'i':
914: if(end==begin) // right after whitespace
1.117 paf 915: if(isspace(PC.source[1])) {
916: switch(PC.source[0]) {
917: case 'n': // in
1.95 paf 918: skip_analized=1;
919: result=IN;
920: goto break2;
1.117 paf 921: case 's': // is
1.95 paf 922: skip_analized=1;
923: result=IS;
924: goto break2;
925: }
1.67 paf 926: }
927: break;
928: case 'd':
929: if(end==begin) // right after whitespace
1.114 paf 930: if(PC.source[0]=='e' && PC.source[1]=='f') { // def
1.67 paf 931: skip_analized=2;
932: result=DEF;
1.58 paf 933: goto break2;
1.50 paf 934: }
1.48 paf 935: break;
936: case ' ': case '\t': case '\n':
1.63 paf 937: if(end!=begin) { // there were a string after previous operator?
938: result=0; // return that string
939: goto break2;
1.48 paf 940: }
1.63 paf 941: // that's a leading|traling space or after-operator-space
942: // ignoring it
943: // reset piece 'begin' position & line
1.114 paf 944: begin=PC.source; // after whitespace char
945: begin_line=PC.line;
1.48 paf 946: continue;
1.1 paf 947: }
948: break;
949:
1.10 paf 950: // VARIABLE GET/PUT/WITH
1.166 parser 951: case LS_VAR_NAME_SIMPLE_WITH_COLON:
952: case LS_VAR_NAME_SIMPLE_WITHOUT_COLON:
953: case LS_EXPRESSION_VAR_NAME_WITH_COLON:
954: case LS_EXPRESSION_VAR_NAME_WITHOUT_COLON:
955: if(
956: PC.ls==LS_EXPRESSION_VAR_NAME_WITH_COLON ||
957: PC.ls==LS_EXPRESSION_VAR_NAME_WITHOUT_COLON) {
1.181 paf 958: // name in expr ends also before
1.48 paf 959: switch(c) {
1.181 paf 960: // expression minus
1.92 paf 961: case '-':
1.181 paf 962: // expression integer division
963: case '\\':
1.48 paf 964: pop_LS(PC);
1.114 paf 965: PC.source--; if(--PC.col<0) { PC.line--; PC.col=-1; }
1.48 paf 966: result=EON;
967: goto break2;
968: }
969: }
1.166 parser 970: if(
971: PC.ls==LS_VAR_NAME_SIMPLE_WITHOUT_COLON ||
972: PC.ls==LS_EXPRESSION_VAR_NAME_WITHOUT_COLON) {
1.142 parser 973: // name already has ':', stop before next
974: switch(c) {
975: case ':':
976: pop_LS(PC);
977: PC.source--; if(--PC.col<0) { PC.line--; PC.col=-1; }
978: result=EON;
979: goto break2;
980: }
981: }
1.48 paf 982: switch(c) {
983: case 0:
984: case ' ': case '\t': case '\n':
985: case ';':
1.126 paf 986: case ']': case '}': case ')':
987: case '"': case '\'':
1.139 parser 988: case '<': case '>': // these stand for HTML brackets AND expression binary ops
1.92 paf 989: case '+': case '*': case '/': case '%':
990: case '&': case '|':
991: case '=': case '!':
1.99 paf 992: // common delimiters
1.158 parser 993: case ',': case '?':
1.139 parser 994: // before call
995: case '^':
1.1 paf 996: pop_LS(PC);
1.114 paf 997: PC.source--; if(--PC.col<0) { PC.line--; PC.col=-1; }
1.13 paf 998: result=EON;
1.1 paf 999: goto break2;
1.48 paf 1000: case '[':
1.162 parser 1001: // $name.<[>code]
1002: if(PC.col>1/*not first column*/ && (
1.163 parser 1003: end[-1]=='$'/*was start of get*/ ||
1004: end[-1]==':'/*was class name delim */ ||
1005: end[-1]=='.'/*was name delim */
1.162 parser 1006: )) {
1.166 parser 1007: push_LS(PC, LS_NAME_SQUARE_PART);
1.162 parser 1008: lexical_brackets_nestage=1;
1009: RC;
1010: }
1.114 paf 1011: PC.ls=LS_VAR_SQUARE;
1.1 paf 1012: lexical_brackets_nestage=1;
1.48 paf 1013: RC;
1014: case '{':
1015: if(begin==end) { // ${name}, no need of EON, switching LS
1.114 paf 1016: PC.ls=LS_VAR_NAME_CURLY;
1.48 paf 1017: } else {
1.114 paf 1018: PC.ls=LS_VAR_CURLY;
1.48 paf 1019: lexical_brackets_nestage=1;
1020: }
1.69 paf 1021:
1.48 paf 1022: RC;
1023: case '(':
1.114 paf 1024: PC.ls=LS_VAR_ROUND;
1.1 paf 1025: lexical_brackets_nestage=1;
1.48 paf 1026: RC;
1027: case '.': // name part delim
1028: case '$': // name part subvar
1.160 parser 1029: case ':': // class<:>name
1.166 parser 1030: // go to _WITHOUT_COLON state variant...
1031: if(PC.ls==LS_VAR_NAME_SIMPLE_WITH_COLON)
1032: PC.ls=LS_VAR_NAME_SIMPLE_WITHOUT_COLON;
1033: else if(PC.ls==LS_EXPRESSION_VAR_NAME_WITH_COLON)
1034: PC.ls=LS_EXPRESSION_VAR_NAME_WITHOUT_COLON;
1035: // ...stop before next ':'
1.48 paf 1036: RC;
1.1 paf 1037: }
1038: break;
1.48 paf 1039:
1.1 paf 1040: case LS_VAR_NAME_CURLY:
1.48 paf 1041: switch(c) {
1.162 parser 1042: case '[':
1.166 parser 1043: // ${name.<[>code]}
1044: push_LS(PC, LS_NAME_SQUARE_PART);
1.160 parser 1045: lexical_brackets_nestage=1;
1046: RC;
1.48 paf 1047: case '}': // ${name} finished, restoring LS
1.1 paf 1048: pop_LS(PC);
1.48 paf 1049: RC;
1050: case '.': // name part delim
1051: case '$': // name part subvar
1052: case ':': // ':name' or 'class:name'
1053: RC;
1.1 paf 1054: }
1055: break;
1.48 paf 1056:
1057: case LS_VAR_SQUARE:
1058: switch(c) {
1059: case '$':
1.166 parser 1060: push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1061: RC;
1062: case '^':
1.10 paf 1063: push_LS(PC, LS_METHOD_NAME);
1.48 paf 1064: RC;
1065: case ']':
1.1 paf 1066: if(--lexical_brackets_nestage==0) {
1067: pop_LS(PC);
1.48 paf 1068: RC;
1.1 paf 1069: }
1.48 paf 1070: break;
1071: case ';': // operator_or_fmt;value delim
1072: RC;
1073: case '[':
1074: lexical_brackets_nestage++;
1075: break;
1.1 paf 1076: }
1077: break;
1.48 paf 1078:
1.1 paf 1079: case LS_VAR_CURLY:
1.48 paf 1080: switch(c) {
1081: case '$':
1.166 parser 1082: push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1083: RC;
1084: case '^':
1.10 paf 1085: push_LS(PC, LS_METHOD_NAME);
1.48 paf 1086: RC;
1087: case '}':
1.1 paf 1088: if(--lexical_brackets_nestage==0) {
1089: pop_LS(PC);
1.48 paf 1090: RC;
1.1 paf 1091: }
1.48 paf 1092: break;
1093: case '{':
1.1 paf 1094: lexical_brackets_nestage++;
1.48 paf 1095: break;
1096: }
1.1 paf 1097: break;
1098:
1.10 paf 1099: // METHOD CALL
1.1 paf 1100: case LS_METHOD_NAME:
1.48 paf 1101: switch(c) {
1102: case '[':
1.166 parser 1103: // ^name.<[>code].xxx
1.162 parser 1104: if(PC.col>1/*not first column*/ && (
1.163 parser 1105: end[-1]=='^'/*was start of call*/ || // never, ^[ is literal...
1106: end[-1]==':'/*was class name delim */ ||
1107: end[-1]=='.'/*was name delim */
1.162 parser 1108: )) {
1.166 parser 1109: push_LS(PC, LS_NAME_SQUARE_PART);
1.162 parser 1110: lexical_brackets_nestage=1;
1111: RC;
1112: }
1.114 paf 1113: PC.ls=LS_METHOD_SQUARE;
1.1 paf 1114: lexical_brackets_nestage=1;
1.48 paf 1115: RC;
1116: case '{':
1.114 paf 1117: PC.ls=LS_METHOD_CURLY;
1.1 paf 1118: lexical_brackets_nestage=1;
1.48 paf 1119: RC;
1.69 paf 1120: case '(':
1.114 paf 1121: PC.ls=LS_METHOD_ROUND;
1.69 paf 1122: lexical_brackets_nestage=1;
1123: RC;
1.48 paf 1124: case '.': // name part delim
1125: case '$': // name part subvar
1126: case ':': // ':name' or 'class:name'
1.170 parser 1127: case '^': // ^abc^xxx wrong. bailing out
1128: case ']': case '}': case ')': // ^abc]}) wrong. bailing out
1.48 paf 1129: RC;
1.1 paf 1130: }
1131: break;
1.48 paf 1132:
1133: case LS_METHOD_SQUARE:
1134: switch(c) {
1135: case '$':
1.166 parser 1136: push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1137: RC;
1138: case '^':
1.10 paf 1139: push_LS(PC, LS_METHOD_NAME);
1.48 paf 1140: RC;
1141: case ';': // param delim
1142: RC;
1143: case ']':
1.1 paf 1144: if(--lexical_brackets_nestage==0) {
1.114 paf 1145: PC.ls=LS_METHOD_AFTER;
1.48 paf 1146: RC;
1.1 paf 1147: }
1.48 paf 1148: break;
1149: case '[':
1.1 paf 1150: lexical_brackets_nestage++;
1.48 paf 1151: break;
1152: }
1.1 paf 1153: break;
1.48 paf 1154:
1.1 paf 1155: case LS_METHOD_CURLY:
1.48 paf 1156: switch(c) {
1157: case '$':
1.166 parser 1158: push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1159: RC;
1160: case '^':
1.10 paf 1161: push_LS(PC, LS_METHOD_NAME);
1.94 paf 1162: RC;
1163: case ';': // param delim
1.48 paf 1164: RC;
1165: case '}':
1.1 paf 1166: if(--lexical_brackets_nestage==0) {
1.114 paf 1167: PC.ls=LS_METHOD_AFTER;
1.48 paf 1168: RC;
1.1 paf 1169: }
1.48 paf 1170: break;
1171: case '{':
1.1 paf 1172: lexical_brackets_nestage++;
1.48 paf 1173: break;
1174: }
1.1 paf 1175: break;
1.48 paf 1176:
1.1 paf 1177: case LS_METHOD_AFTER:
1.69 paf 1178: if(c=='[') {/* ][ }[ )[ */
1.114 paf 1179: PC.ls=LS_METHOD_SQUARE;
1.1 paf 1180: lexical_brackets_nestage=1;
1.48 paf 1181: RC;
1.1 paf 1182: }
1.69 paf 1183: if(c=='{') {/* ]{ }{ ){ */
1.114 paf 1184: PC.ls=LS_METHOD_CURLY;
1.69 paf 1185: lexical_brackets_nestage=1;
1186: RC;
1187: }
1188: if(c=='(') {/* ]( }( )( */
1.114 paf 1189: PC.ls=LS_METHOD_ROUND;
1.1 paf 1190: lexical_brackets_nestage=1;
1.48 paf 1191: RC;
1.1 paf 1192: }
1193: pop_LS(PC);
1.114 paf 1194: PC.source--; if(--PC.col<0) { PC.line--; PC.col=-1; }
1.13 paf 1195: result=EON;
1.1 paf 1196: goto break2;
1197: }
1.9 paf 1198: if(c==0) {
1.1 paf 1199: result=-1;
1200: break;
1201: }
1202: }
1203:
1204: break2:
1.59 paf 1205: if(end!=begin) { // there is last piece?
1206: if((c=='@' || c==0) && end[-1]=='\n') { // we are before LS_DEF_NAME or EOF?
1207: // strip last \n
1.10 paf 1208: end--;
1.137 parser 1209: if(end!=begin && end[-1]=='\n') // allow one empty line before LS_DEF_NAME
1210: end--;
1.59 paf 1211: }
1.133 parser 1212: if(end!=begin && PC.ls!=LS_COMMENT) { // last piece still alive and not comment?
1.59 paf 1213: // append it
1.121 paf 1214: PC.string->APPEND_CLEAN(begin, end-begin, PC.file, begin_line/*, start_col*/);
1.30 paf 1215: }
1.59 paf 1216: }
1.114 paf 1217: if(PC.string->size()) { // something accumulated?
1.17 paf 1218: // create STRING value: array of OP_VALUE+vstring
1.114 paf 1219: *lvalp=VL(NEW VString(*PC.string));
1.10 paf 1220: // new pieces storage
1.114 paf 1221: PC.string=NEW String(POOL);
1.58 paf 1222: // make current result be pending for next call, return STRING for now
1.114 paf 1223: PC.pending_state=result; result=STRING;
1.58 paf 1224: }
1.67 paf 1225: if(skip_analized) {
1.114 paf 1226: PC.source+=skip_analized; PC.col+=skip_analized;
1.1 paf 1227: }
1.58 paf 1228: return result;
1.1 paf 1229: }
1230:
1.110 paf 1231: static int real_yyerror(parse_control *pc, char *s) { // Called by yyparse on error
1.114 paf 1232: strncpy(PC.error, s, MAX_STRING);
1.1 paf 1233: return 1;
1.110 paf 1234: }
1.1 paf 1235:
1.110 paf 1236: static void yyprint(FILE *file, int type, YYSTYPE value) {
1237: if(type==STRING)
1.120 paf 1238: fprintf(file, " \"%s\"", LA2S(value)->cstr());
1.110 paf 1239: }
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