Annotation of parser3/src/main/compile.y, revision 1.175
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:
1.175 ! paf 8: $Id: compile.y,v 1.174 2002/01/24 17:18:48 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
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: };
1.154 parser 344: call_value: '^' { PC.object_constructor_allowed=true }
345: call_name { PC.object_constructor_allowed=false }
346: store_params EON { /* ^field.$method{vasya} */
347: $$=$3; /* with_xxx,diving code; stack: context,method_junction */
1.54 paf 348: O($$, OP_GET_METHOD_FRAME); /* stack: context,method_frame */
1.123 paf 349:
1.154 parser 350: YYSTYPE params_code=$5;
1.140 parser 351: if(params_code->size()==3) // probably [] case. [OP_VALUE + Void + STORE_PARAM]
1.123 paf 352: if(Value *value=LA2V(params_code)) // it is OP_VALUE + value?
1.140 parser 353: if(!value->is_defined()) // value is VVoid?
1.123 paf 354: params_code=0; // ^zzz[] case. don't append lone empty param.
355: if(params_code)
356: P($$, params_code); // filling method_frame.store_params
1.155 parser 357: O($$, OP_CALL); // method_frame=pop; ncontext=pop; call(ncontext,method_frame) stack: value
1.1 paf 358: };
359:
1.43 paf 360: call_name: name_without_curly_rdive;
1.38 paf 361:
1.9 paf 362: store_params: store_param | store_params store_param { $$=$1; P($$, $2) };
1.69 paf 363: store_param:
364: store_square_param
365: | store_round_param
366: | store_curly_param
1.31 paf 367: ;
1.123 paf 368: store_square_param: '[' store_code_param_parts ']' {$$=$2};
1.69 paf 369: store_round_param: '(' store_expr_param_parts ')' {$$=$2};
1.94 paf 370: store_curly_param: '{' store_curly_param_parts '}' {$$=$2};
1.69 paf 371: store_code_param_parts:
372: store_code_param_part
373: | store_code_param_parts ';' store_code_param_part { $$=$1; P($$, $3) }
374: ;
375: store_expr_param_parts:
376: store_expr_param_part
377: | store_expr_param_parts ';' store_expr_param_part { $$=$1; P($$, $3) }
378: ;
1.94 paf 379: store_curly_param_parts:
380: store_curly_param_part
381: | store_curly_param_parts ';' store_curly_param_part { $$=$1; P($$, $3) }
382: ;
1.120 paf 383: store_code_param_part: code_param_value {
1.32 paf 384: $$=$1;
1.54 paf 385: O($$, OP_STORE_PARAM);
1.120 paf 386: };
1.69 paf 387: store_expr_param_part: write_expr_value {
388: $$=N(POOL);
1.103 paf 389: PEA($$, $1);
1.69 paf 390: };
1.94 paf 391: store_curly_param_part: maybe_codes {
392: $$=N(POOL);
393: PCA($$, $1);
394: };
1.120 paf 395: code_param_value:
1.157 parser 396: void_value /* optimized [;...] case */
1.120 paf 397: | STRING /* optimized [STRING] case */
398: | constructor_code_value /* [something complex] */
399: ;
1.90 paf 400: write_expr_value: expr_value {
1.69 paf 401: $$=$1;
1.102 paf 402: O($$, OP_WRITE_EXPR_RESULT);
1.69 paf 403: };
1.1 paf 404:
405: /* name */
406:
1.20 paf 407: name_expr_dive_code: name_expr_value | name_path name_expr_value { $$=$1; P($$, $2) };
1.1 paf 408:
1.9 paf 409: name_path: name_step | name_path name_step { $$=$1; P($$, $2) };
1.1 paf 410: name_step: name_advance1 '.';
411: name_advance1: name_expr_value {
412: /* stack: context */
413: $$=$1; /* stack: context,name */
1.54 paf 414: O($$, OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */
1.1 paf 415: };
416: name_advance2: name_expr_value {
417: /* stack: context */
418: $$=$1; /* stack: context,name */
1.54 paf 419: O($$, OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */
1.1 paf 420: }
1.4 paf 421: | STRING BOGUS
1.1 paf 422: ;
423: name_expr_value:
1.4 paf 424: STRING /* subname_is_const */
1.1 paf 425: | name_expr_subvar_value /* $subname_is_var_value */
1.160 parser 426: | name_expr_with_subvar_value /* xxx$part_of_subname_is_var_value */
1.166 parser 427: | name_square_code_value /* [codes] */
1.1 paf 428: ;
429: name_expr_subvar_value: '$' subvar_ref_name_rdive {
430: $$=$2;
1.54 paf 431: O($$, OP_GET_ELEMENT);
1.1 paf 432: };
1.4 paf 433: name_expr_with_subvar_value: STRING subvar_get_writes {
1.25 paf 434: $$=N(POOL);
1.54 paf 435: O($$, OP_CREATE_EWPOOL);
1.9 paf 436: P($$, $1);
1.102 paf 437: O($$, OP_WRITE_VALUE);
1.9 paf 438: P($$, $2);
1.54 paf 439: O($$, OP_REDUCE_EWPOOL);
1.1 paf 440: };
1.166 parser 441: name_square_code_value: '[' codes ']' {
1.160 parser 442: $$=N(POOL);
443: O($$, OP_CREATE_EWPOOL);
444: P($$, $2);
445: O($$, OP_REDUCE_EWPOOL);
446: };
1.154 parser 447: subvar_ref_name_rdive: STRING {
1.25 paf 448: $$=N(POOL);
1.54 paf 449: O($$, OP_WITH_READ);
1.9 paf 450: P($$, $1);
1.1 paf 451: };
1.9 paf 452: subvar_get_writes: subvar__get_write | subvar_get_writes subvar__get_write { $$=$1; P($$, $2) };
1.1 paf 453: subvar__get_write: '$' subvar_ref_name_rdive {
454: $$=$2;
1.54 paf 455: O($$, OP_GET_ELEMENT__WRITE);
1.42 paf 456: };
457:
1.154 parser 458: class_prefix:
459: class_static_prefix
460: | class_constructor_prefix
461: ;
1.155 parser 462: class_static_prefix: STRING ':' {
463: $$=$1; // stack: class name string
464: O($$, OP_GET_CLASS);
465: };
466: class_constructor_prefix: class_static_prefix ':' {
1.154 parser 467: $$=$1;
468: if(!PC.object_constructor_allowed) {
469: strcpy(PC.error, ":: not allowed here");
470: YYERROR;
471: }
1.155 parser 472: O($$, OP_PREPARE_TO_CONSTRUCT_OBJECT);
1.1 paf 473: };
474:
1.53 paf 475:
1.56 paf 476: /* expr */
1.53 paf 477:
1.81 paf 478: expr_value: expr {
479: if(($$=$1)->size()==2) // only one string literal in there?
1.62 paf 480: change_string_literal_to_double_literal($$); // make that string literal Double
481: };
1.56 paf 482: expr:
1.62 paf 483: STRING
1.64 paf 484: | get_value
1.66 paf 485: | call_value
1.64 paf 486: | '"' string_inside_quotes_value '"' { $$ = $2; }
1.145 parser 487: | '\'' string_inside_quotes_value '\'' { $$ = $2; }
1.60 paf 488: | '(' expr ')' { $$ = $2; }
489: /* stack: operand // stack: @operand */
490: | '-' expr %prec NEG { $$=$2; O($$, OP_NEG) }
1.166 parser 491: | '+' expr %prec NEG { $$=$2 }
1.68 paf 492: | '~' expr { $$=$2; O($$, OP_INV) }
493: | '!' expr { $$=$2; O($$, OP_NOT) }
494: | "def" expr { $$=$2; O($$, OP_DEF) }
495: | "in" expr { $$=$2; O($$, OP_IN) }
496: | "-f" expr { $$=$2; O($$, OP_FEXISTS) }
1.127 paf 497: | "-d" expr { $$=$2; O($$, OP_DEXISTS) }
1.60 paf 498: /* stack: a,b // stack: a@b */
499: | expr '-' expr { $$=$1; P($$, $3); O($$, OP_SUB) }
500: | expr '+' expr { $$=$1; P($$, $3); O($$, OP_ADD) }
501: | expr '*' expr { $$=$1; P($$, $3); O($$, OP_MUL) }
502: | expr '/' expr { $$=$1; P($$, $3); O($$, OP_DIV) }
503: | expr '%' expr { $$=$1; P($$, $3); O($$, OP_MOD) }
1.173 paf 504: | expr '\\' expr { $$=$1; P($$, $3); O($$, OP_INTDIV) }
1.60 paf 505: | expr '&' expr { $$=$1; P($$, $3); O($$, OP_BIN_AND) }
506: | expr '|' expr { $$=$1; P($$, $3); O($$, OP_BIN_OR) }
507: | expr '#' expr { $$=$1; P($$, $3); O($$, OP_BIN_XOR) }
1.174 paf 508: | expr "&&" expr { $$=$1; PNC($$, $3); O($$, OP_LOG_AND) }
509: | expr "||" expr { $$=$1; PNC($$, $3); O($$, OP_LOG_OR) }
1.60 paf 510: | expr "##" expr { $$=$1; P($$, $3); O($$, OP_LOG_XOR) }
511: | expr '<' expr { $$=$1; P($$, $3); O($$, OP_NUM_LT) }
512: | expr '>' expr { $$=$1; P($$, $3); O($$, OP_NUM_GT) }
513: | expr "<=" expr { $$=$1; P($$, $3); O($$, OP_NUM_LE) }
514: | expr ">=" expr { $$=$1; P($$, $3); O($$, OP_NUM_GE) }
515: | expr "==" expr { $$=$1; P($$, $3); O($$, OP_NUM_EQ) }
516: | expr "!=" expr { $$=$1; P($$, $3); O($$, OP_NUM_NE) }
1.61 paf 517: | expr "lt" expr { $$=$1; P($$, $3); O($$, OP_STR_LT) }
518: | expr "gt" expr { $$=$1; P($$, $3); O($$, OP_STR_GT) }
519: | expr "le" expr { $$=$1; P($$, $3); O($$, OP_STR_LE) }
520: | expr "ge" expr { $$=$1; P($$, $3); O($$, OP_STR_GE) }
521: | expr "eq" expr { $$=$1; P($$, $3); O($$, OP_STR_EQ) }
522: | expr "ne" expr { $$=$1; P($$, $3); O($$, OP_STR_NE) }
1.95 paf 523: | expr "is" expr { $$=$1; P($$, $3); O($$, OP_IS) }
1.56 paf 524: ;
1.55 paf 525:
1.65 paf 526: string_inside_quotes_value: maybe_codes {
1.64 paf 527: $$=N(POOL);
528: O($$, OP_CREATE_SWPOOL); /* stack: empty write context */
1.69 paf 529: P($$, $1); /* some code that writes to that context */
1.64 paf 530: O($$, OP_REDUCE_SWPOOL); /* context=pop; stack: context.get_string() */
1.53 paf 531: };
1.1 paf 532:
1.27 paf 533: /* basics */
1.1 paf 534:
1.81 paf 535: write_string: STRING {
1.102 paf 536: // optimized from OP_STRING+OP_WRITE_VALUE to OP_STRING__WRITE
1.84 paf 537: change_string_literal_to_write_string_literal($$=$1)
1.54 paf 538: };
539:
1.157 parser 540: void_value: /* empty */ { $$=VL(NEW VVoid(POOL)) };
1.25 paf 541: empty: /* empty */ { $$=N(POOL) };
1.1 paf 542:
543: %%
1.105 paf 544: #endif
1.1 paf 545:
546: /*
547: 000$111(2222)00
548: 000$111{3333}00
1.9 paf 549: $,^: push,=0
1.1 paf 550: 1:( { break=pop
551: 2:( ) pop
552: 3:{ } pop
553:
554: 000^111(2222)4444{33333}4000
1.9 paf 555: $,^: push,=0
1.1 paf 556: 1:( { break=pop
557: 2:( )=4
558: 3:{ }=4
559: 4:[^({]=pop
560: */
561:
1.110 paf 562: static int yylex(YYSTYPE *lvalp, void *pc) {
1.114 paf 563: #define lexical_brackets_nestage PC.brackets_nestages[PC.sp]
1.48 paf 564: #define RC {result=c; goto break2; }
1.1 paf 565:
566: register int c;
567: int result;
568:
1.114 paf 569: if(PC.pending_state) {
570: result=PC.pending_state;
571: PC.pending_state=0;
1.1 paf 572: return result;
573: }
574:
1.114 paf 575: const char *begin=PC.source;
1.91 paf 576: const char *end;
1.114 paf 577: int begin_line=PC.line;
1.67 paf 578: int skip_analized=0;
1.50 paf 579: while(true) {
1.114 paf 580: c=*(end=(PC.source++));
1.166 parser 581: // fprintf(stderr, "\nchar: %c %02X; nestage: %d, sp=%d", c, c, lexical_brackets_nestage, PC.sp);
1.1 paf 582:
1.4 paf 583: if(c=='\n') {
1.114 paf 584: PC.line++;
585: PC.col=0;
1.10 paf 586: } else
1.114 paf 587: PC.col++;
1.73 paf 588:
1.171 parser 589: if(c=='@' && PC.col==0+1) {
1.175 ! paf 590: if(PC.ls==LS_DEF_SPECIAL_BODY) {
! 591: // @SPECIAL
! 592: // ...
! 593: // @<here =
! 594: pop_LS(PC); // exiting from LS_DEF_SPECIAL_BODY state
! 595: } // continuing checks
1.171 parser 596: if(PC.ls==LS_USER) {
597: push_LS(PC, LS_DEF_NAME);
598: RC;
1.175 ! paf 599: } else // @ in first column inside some code [when could that be?]
1.171 parser 600: result=BAD_METHOD_DECL_START;
601: goto break2;
602: } else if(c=='^')
1.169 parser 603: switch(PC.ls) {
604: case LS_EXPRESSION_VAR_NAME_WITH_COLON:
605: case LS_EXPRESSION_VAR_NAME_WITHOUT_COLON:
606: case LS_VAR_NAME_SIMPLE_WITH_COLON:
607: case LS_VAR_NAME_SIMPLE_WITHOUT_COLON:
608: case LS_VAR_NAME_CURLY:
609: case LS_METHOD_NAME:
610: case LS_COMMENT:
611: case LS_DEF_COMMENT:
612: // no literals in names, please
613: break;
614: default:
1.114 paf 615: switch(*PC.source) {
1.165 parser 616: // ^escaping some punctuators
1.48 paf 617: case '^': case '$': case ';':
1.126 paf 618: case '(': case ')':
1.48 paf 619: case '[': case ']':
620: case '{': case '}':
1.172 parser 621: case '"': case ':':
1.40 paf 622: if(end!=begin) {
623: // append piece till ^
1.121 paf 624: PC.string->APPEND_CLEAN(begin, end-begin, PC.file, begin_line);
1.40 paf 625: }
1.63 paf 626: // reset piece 'begin' position & line
1.164 parser 627: end=begin=PC.source; // ^
1.114 paf 628: begin_line=PC.line;
1.164 parser 629: if(PC.ls==LS_METHOD_AFTER) {
630: pop_LS(PC);
631: result=EON;
1.165 parser 632: skip_analized=-1; // return to ^ afterwards to assure it's literality
1.164 parser 633: goto break2;
634: } else {
635: // skip over _ after ^
636: PC.source++; PC.col++;
637: // skip analysis = forced literal
638: continue;
639: }
1.114 paf 640:
641: // converting ^#HH into char(hex(HH))
642: case '#':
643: if(end!=begin) {
644: // append piece till ^
1.121 paf 645: PC.string->APPEND_CLEAN(begin, end-begin, PC.file, begin_line);
1.114 paf 646: }
647: // #HH ?
648: if(PC.source[0]=='#' && PC.source[1] && PC.source[2]) {
649: char *hex=(char *)POOL.malloc(1);
650: hex[0]=
651: hex_value[(unsigned char)PC.source[1]]*0x10+
652: hex_value[(unsigned char)PC.source[2]];
653: if(hex[0]==0) {
654: result=BAD_HEX_LITERAL;
655: goto break2; // wrong hex value[no ^#00 chars allowed]: bail out
656: }
657: // append char(hex(HH))
1.121 paf 658: PC.string->APPEND_CLEAN(hex, 1, PC.file, begin_line);
1.114 paf 659: // skip over ^#HH
660: PC.source+=3;
661: PC.col+=3;
662: // reset piece 'begin' position & line
663: begin=PC.source; // ^
664: begin_line=PC.line;
665: continue;
666: }
667: break;
1.1 paf 668: }
1.169 parser 669: break;
670: }
1.113 paf 671: // #comment start skipping
1.114 paf 672: if(c=='#' && PC.col==1) {
1.112 paf 673: if(end!=begin) {
674: // append piece till #
1.121 paf 675: PC.string->APPEND_CLEAN(begin, end-begin, PC.file, begin_line);
1.112 paf 676: }
677: // fall into COMMENT lexical state [wait for \n]
678: push_LS(PC, LS_COMMENT);
1.175 ! paf 679: continue;
1.112 paf 680: }
1.114 paf 681: switch(PC.ls) {
1.10 paf 682:
683: // USER'S = NOT OURS
1.1 paf 684: case LS_USER:
1.166 parser 685: case LS_NAME_SQUARE_PART: // name.[here].xxx
1.153 parser 686: if(PC.trim_bof)
687: switch(c) {
688: case '\n': case ' ': case '\t':
1.152 parser 689: begin=PC.source;
690: begin_line=PC.line;
691: continue; // skip it
1.153 parser 692: default:
693: PC.trim_bof=false;
1.152 parser 694: }
1.48 paf 695: switch(c) {
696: case '$':
1.166 parser 697: push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 698: RC;
699: case '^':
700: push_LS(PC, LS_METHOD_NAME);
701: RC;
1.166 parser 702: case ']':
703: if(PC.ls==LS_NAME_SQUARE_PART)
704: if(--lexical_brackets_nestage==0) {// $name.[co<]?>de<]?>
705: pop_LS(PC); // $name.[co<]>de<]!>
706: RC;
707: }
1.160 parser 708: break;
1.166 parser 709: case '[': // $name.[co<[>de]
710: if(PC.ls==LS_NAME_SQUARE_PART)
711: lexical_brackets_nestage++;
1.161 parser 712: break;
1.112 paf 713: }
714: break;
715:
716: // #COMMENT
717: case LS_COMMENT:
718: if(c=='\n') {
719: // skip comment
1.114 paf 720: begin=PC.source;
721: begin_line=PC.line;
1.112 paf 722:
723: pop_LS(PC);
724: continue;
1.1 paf 725: }
1.48 paf 726: break;
727:
728: // STRING IN EXPRESSION
1.145 parser 729: case LS_EXPRESSION_STRING_QUOTED:
730: case LS_EXPRESSION_STRING_APOSTROFED:
1.48 paf 731: switch(c) {
732: case '"':
1.145 parser 733: case '\'':
734: if(
735: PC.ls == LS_EXPRESSION_STRING_QUOTED && c=='"' ||
736: PC.ls == LS_EXPRESSION_STRING_APOSTROFED && c=='\'') {
737: pop_LS(PC); //"abc". | 'abc'.
738: RC;
739: }
740: break;
1.48 paf 741: case '$':
1.166 parser 742: push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 743: RC;
744: case '^':
1.10 paf 745: push_LS(PC, LS_METHOD_NAME);
1.48 paf 746: RC;
1.10 paf 747: }
748: break;
749:
750: // METHOD DEFINITION
751: case LS_DEF_NAME:
1.48 paf 752: switch(c) {
753: case '[':
1.114 paf 754: PC.ls=LS_DEF_PARAMS;
1.48 paf 755: RC;
756: case '\n':
1.114 paf 757: PC.ls=LS_DEF_SPECIAL_BODY;
1.48 paf 758: RC;
1.10 paf 759: }
760: break;
1.48 paf 761:
1.10 paf 762: case LS_DEF_PARAMS:
1.48 paf 763: switch(c) {
764: case ';':
765: RC;
766: case ']':
1.114 paf 767: PC.ls=*PC.source=='['?LS_DEF_LOCALS:LS_DEF_COMMENT;
1.48 paf 768: RC;
1.49 paf 769: case '\n': // wrong. bailing out
1.10 paf 770: pop_LS(PC);
1.48 paf 771: RC;
1.10 paf 772: }
773: break;
1.48 paf 774:
1.10 paf 775: case LS_DEF_LOCALS:
1.48 paf 776: switch(c) {
777: case '[':
778: case ';':
779: RC;
780: case ']':
1.114 paf 781: PC.ls=LS_DEF_COMMENT;
1.48 paf 782: RC;
783: case '\n': // wrong. bailing out
1.10 paf 784: pop_LS(PC);
1.48 paf 785: RC;
1.10 paf 786: }
787: break;
1.48 paf 788:
1.10 paf 789: case LS_DEF_COMMENT:
790: if(c=='\n') {
791: pop_LS(PC);
1.48 paf 792: RC;
1.37 paf 793: }
794: break;
795:
1.48 paf 796: case LS_DEF_SPECIAL_BODY:
1.175 ! paf 797: if(c=='\n')
1.48 paf 798: RC;
799: break;
800:
801: // (EXPRESSION)
1.69 paf 802: case LS_VAR_ROUND:
803: case LS_METHOD_ROUND:
1.48 paf 804: switch(c) {
805: case ')':
806: if(--lexical_brackets_nestage==0)
1.114 paf 807: if(PC.ls==LS_METHOD_ROUND) // method round param ended
808: PC.ls=LS_METHOD_AFTER; // look for method end
809: else // PC.ls==LS_VAR_ROUND // variable constructor ended
1.69 paf 810: pop_LS(PC); // return to normal life
1.48 paf 811: RC;
812: case '$':
1.166 parser 813: push_LS(PC, LS_EXPRESSION_VAR_NAME_WITH_COLON);
1.48 paf 814: RC;
815: case '^':
816: push_LS(PC, LS_METHOD_NAME);
817: RC;
818: case '(':
819: lexical_brackets_nestage++;
820: RC;
1.67 paf 821: case '-':
1.127 paf 822: switch(*PC.source) {
823: case 'f': // -f
1.67 paf 824: skip_analized=1;
825: result=FEXISTS;
1.127 paf 826: goto break2;
827: case 'd': // -d
828: skip_analized=1;
829: result=DEXISTS;
830: goto break2;
831: default:
1.67 paf 832: result=c;
1.127 paf 833: goto break2;
834: }
1.67 paf 835: goto break2;
1.173 paf 836: case '+': case '*': case '/': case '%': case '\\':
1.58 paf 837: case '~':
1.48 paf 838: case ';':
839: RC;
1.59 paf 840: case '&': case '|': case '#':
1.114 paf 841: if(*PC.source==c) { // && ||
1.59 paf 842: result=c=='#'?LXOR:c=='&'?LAND:LOR;
1.67 paf 843: skip_analized=1;
1.58 paf 844: } else
845: result=c;
846: goto break2;
847: case '<': case '>': case '=': case '!':
1.114 paf 848: if(*PC.source=='=') { // <= >= == !=
1.67 paf 849: skip_analized=1;
1.58 paf 850: switch(c) {
851: case '<': result=NLE; break;
852: case '>': result=NGE; break;
853: case '=': result=NEQ; break;
854: case '!': result=NNE; break;
855: }
856: } else
857: result=c;
858: goto break2;
1.48 paf 859: case '"':
1.145 parser 860: push_LS(PC, LS_EXPRESSION_STRING_QUOTED);
861: RC;
862: case '\'':
863: push_LS(PC, LS_EXPRESSION_STRING_APOSTROFED);
1.48 paf 864: RC;
1.50 paf 865: case 'l': case 'g': case 'e': case 'n':
1.51 paf 866: if(end==begin) // right after whitespace
1.117 paf 867: if(isspace(PC.source[1])) {
868: switch(*PC.source) {
869: // case '?': // ok [and bad cases, yacc would bark at them]
870: case 't': // lt gt [et nt]
871: result=c=='l'?SLT:c=='g'?SGT:BAD_STRING_COMPARISON_OPERATOR;
872: skip_analized=1;
873: goto break2;
874: case 'e': // le ge ne [ee]
875: result=c=='l'?SLE:c=='g'?SGE:c=='n'?SNE:BAD_STRING_COMPARISON_OPERATOR;
876: skip_analized=1;
877: goto break2;
878: case 'q': // eq [lq gq nq]
879: result=c=='e'?SEQ:BAD_STRING_COMPARISON_OPERATOR;
880: skip_analized=1;
881: goto break2;
882: }
1.67 paf 883: }
884: break;
885: case 'i':
886: if(end==begin) // right after whitespace
1.117 paf 887: if(isspace(PC.source[1])) {
888: switch(PC.source[0]) {
889: case 'n': // in
1.95 paf 890: skip_analized=1;
891: result=IN;
892: goto break2;
1.117 paf 893: case 's': // is
1.95 paf 894: skip_analized=1;
895: result=IS;
896: goto break2;
897: }
1.67 paf 898: }
899: break;
900: case 'd':
901: if(end==begin) // right after whitespace
1.114 paf 902: if(PC.source[0]=='e' && PC.source[1]=='f') { // def
1.67 paf 903: skip_analized=2;
904: result=DEF;
1.58 paf 905: goto break2;
1.50 paf 906: }
1.48 paf 907: break;
908: case ' ': case '\t': case '\n':
1.63 paf 909: if(end!=begin) { // there were a string after previous operator?
910: result=0; // return that string
911: goto break2;
1.48 paf 912: }
1.63 paf 913: // that's a leading|traling space or after-operator-space
914: // ignoring it
915: // reset piece 'begin' position & line
1.114 paf 916: begin=PC.source; // after whitespace char
917: begin_line=PC.line;
1.48 paf 918: continue;
1.1 paf 919: }
920: break;
921:
1.10 paf 922: // VARIABLE GET/PUT/WITH
1.166 parser 923: case LS_VAR_NAME_SIMPLE_WITH_COLON:
924: case LS_VAR_NAME_SIMPLE_WITHOUT_COLON:
925: case LS_EXPRESSION_VAR_NAME_WITH_COLON:
926: case LS_EXPRESSION_VAR_NAME_WITHOUT_COLON:
927: if(
928: PC.ls==LS_EXPRESSION_VAR_NAME_WITH_COLON ||
929: PC.ls==LS_EXPRESSION_VAR_NAME_WITHOUT_COLON) {
1.56 paf 930: // name in expr ends also before binary operators
1.48 paf 931: switch(c) {
1.92 paf 932: case '-':
1.48 paf 933: pop_LS(PC);
1.114 paf 934: PC.source--; if(--PC.col<0) { PC.line--; PC.col=-1; }
1.48 paf 935: result=EON;
936: goto break2;
937: }
938: }
1.166 parser 939: if(
940: PC.ls==LS_VAR_NAME_SIMPLE_WITHOUT_COLON ||
941: PC.ls==LS_EXPRESSION_VAR_NAME_WITHOUT_COLON) {
1.142 parser 942: // name already has ':', stop before next
943: switch(c) {
944: case ':':
945: pop_LS(PC);
946: PC.source--; if(--PC.col<0) { PC.line--; PC.col=-1; }
947: result=EON;
948: goto break2;
949: }
950: }
1.48 paf 951: switch(c) {
952: case 0:
953: case ' ': case '\t': case '\n':
954: case ';':
1.126 paf 955: case ']': case '}': case ')':
956: case '"': case '\'':
1.139 parser 957: case '<': case '>': // these stand for HTML brackets AND expression binary ops
1.92 paf 958: case '+': case '*': case '/': case '%':
959: case '&': case '|':
960: case '=': case '!':
1.99 paf 961: // common delimiters
1.158 parser 962: case ',': case '?':
1.139 parser 963: // before call
964: case '^':
1.1 paf 965: pop_LS(PC);
1.114 paf 966: PC.source--; if(--PC.col<0) { PC.line--; PC.col=-1; }
1.13 paf 967: result=EON;
1.1 paf 968: goto break2;
1.48 paf 969: case '[':
1.162 parser 970: // $name.<[>code]
971: if(PC.col>1/*not first column*/ && (
1.163 parser 972: end[-1]=='$'/*was start of get*/ ||
973: end[-1]==':'/*was class name delim */ ||
974: end[-1]=='.'/*was name delim */
1.162 parser 975: )) {
1.166 parser 976: push_LS(PC, LS_NAME_SQUARE_PART);
1.162 parser 977: lexical_brackets_nestage=1;
978: RC;
979: }
1.114 paf 980: PC.ls=LS_VAR_SQUARE;
1.1 paf 981: lexical_brackets_nestage=1;
1.48 paf 982: RC;
983: case '{':
984: if(begin==end) { // ${name}, no need of EON, switching LS
1.114 paf 985: PC.ls=LS_VAR_NAME_CURLY;
1.48 paf 986: } else {
1.114 paf 987: PC.ls=LS_VAR_CURLY;
1.48 paf 988: lexical_brackets_nestage=1;
989: }
1.69 paf 990:
1.48 paf 991: RC;
992: case '(':
1.114 paf 993: PC.ls=LS_VAR_ROUND;
1.1 paf 994: lexical_brackets_nestage=1;
1.48 paf 995: RC;
996: case '.': // name part delim
997: case '$': // name part subvar
1.160 parser 998: case ':': // class<:>name
1.166 parser 999: // go to _WITHOUT_COLON state variant...
1000: if(PC.ls==LS_VAR_NAME_SIMPLE_WITH_COLON)
1001: PC.ls=LS_VAR_NAME_SIMPLE_WITHOUT_COLON;
1002: else if(PC.ls==LS_EXPRESSION_VAR_NAME_WITH_COLON)
1003: PC.ls=LS_EXPRESSION_VAR_NAME_WITHOUT_COLON;
1004: // ...stop before next ':'
1.48 paf 1005: RC;
1.1 paf 1006: }
1007: break;
1.48 paf 1008:
1.1 paf 1009: case LS_VAR_NAME_CURLY:
1.48 paf 1010: switch(c) {
1.162 parser 1011: case '[':
1.166 parser 1012: // ${name.<[>code]}
1013: push_LS(PC, LS_NAME_SQUARE_PART);
1.160 parser 1014: lexical_brackets_nestage=1;
1015: RC;
1.48 paf 1016: case '}': // ${name} finished, restoring LS
1.1 paf 1017: pop_LS(PC);
1.48 paf 1018: RC;
1019: case '.': // name part delim
1020: case '$': // name part subvar
1021: case ':': // ':name' or 'class:name'
1022: RC;
1.1 paf 1023: }
1024: break;
1.48 paf 1025:
1026: case LS_VAR_SQUARE:
1027: switch(c) {
1028: case '$':
1.166 parser 1029: push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1030: RC;
1031: case '^':
1.10 paf 1032: push_LS(PC, LS_METHOD_NAME);
1.48 paf 1033: RC;
1034: case ']':
1.1 paf 1035: if(--lexical_brackets_nestage==0) {
1036: pop_LS(PC);
1.48 paf 1037: RC;
1.1 paf 1038: }
1.48 paf 1039: break;
1040: case ';': // operator_or_fmt;value delim
1041: RC;
1042: case '[':
1043: lexical_brackets_nestage++;
1044: break;
1.1 paf 1045: }
1046: break;
1.48 paf 1047:
1.1 paf 1048: case LS_VAR_CURLY:
1.48 paf 1049: switch(c) {
1050: case '$':
1.166 parser 1051: push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1052: RC;
1053: case '^':
1.10 paf 1054: push_LS(PC, LS_METHOD_NAME);
1.48 paf 1055: RC;
1056: case '}':
1.1 paf 1057: if(--lexical_brackets_nestage==0) {
1058: pop_LS(PC);
1.48 paf 1059: RC;
1.1 paf 1060: }
1.48 paf 1061: break;
1062: case '{':
1.1 paf 1063: lexical_brackets_nestage++;
1.48 paf 1064: break;
1065: }
1.1 paf 1066: break;
1067:
1.10 paf 1068: // METHOD CALL
1.1 paf 1069: case LS_METHOD_NAME:
1.48 paf 1070: switch(c) {
1071: case '[':
1.166 parser 1072: // ^name.<[>code].xxx
1.162 parser 1073: if(PC.col>1/*not first column*/ && (
1.163 parser 1074: end[-1]=='^'/*was start of call*/ || // never, ^[ is literal...
1075: end[-1]==':'/*was class name delim */ ||
1076: end[-1]=='.'/*was name delim */
1.162 parser 1077: )) {
1.166 parser 1078: push_LS(PC, LS_NAME_SQUARE_PART);
1.162 parser 1079: lexical_brackets_nestage=1;
1080: RC;
1081: }
1.114 paf 1082: PC.ls=LS_METHOD_SQUARE;
1.1 paf 1083: lexical_brackets_nestage=1;
1.48 paf 1084: RC;
1085: case '{':
1.114 paf 1086: PC.ls=LS_METHOD_CURLY;
1.1 paf 1087: lexical_brackets_nestage=1;
1.48 paf 1088: RC;
1.69 paf 1089: case '(':
1.114 paf 1090: PC.ls=LS_METHOD_ROUND;
1.69 paf 1091: lexical_brackets_nestage=1;
1092: RC;
1.48 paf 1093: case '.': // name part delim
1094: case '$': // name part subvar
1095: case ':': // ':name' or 'class:name'
1.170 parser 1096: case '^': // ^abc^xxx wrong. bailing out
1097: case ']': case '}': case ')': // ^abc]}) wrong. bailing out
1.48 paf 1098: RC;
1.1 paf 1099: }
1100: break;
1.48 paf 1101:
1102: case LS_METHOD_SQUARE:
1103: switch(c) {
1104: case '$':
1.166 parser 1105: push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1106: RC;
1107: case '^':
1.10 paf 1108: push_LS(PC, LS_METHOD_NAME);
1.48 paf 1109: RC;
1110: case ';': // param delim
1111: RC;
1112: case ']':
1.1 paf 1113: if(--lexical_brackets_nestage==0) {
1.114 paf 1114: PC.ls=LS_METHOD_AFTER;
1.48 paf 1115: RC;
1.1 paf 1116: }
1.48 paf 1117: break;
1118: case '[':
1.1 paf 1119: lexical_brackets_nestage++;
1.48 paf 1120: break;
1121: }
1.1 paf 1122: break;
1.48 paf 1123:
1.1 paf 1124: case LS_METHOD_CURLY:
1.48 paf 1125: switch(c) {
1126: case '$':
1.166 parser 1127: push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1128: RC;
1129: case '^':
1.10 paf 1130: push_LS(PC, LS_METHOD_NAME);
1.94 paf 1131: RC;
1132: case ';': // param delim
1.48 paf 1133: RC;
1134: case '}':
1.1 paf 1135: if(--lexical_brackets_nestage==0) {
1.114 paf 1136: PC.ls=LS_METHOD_AFTER;
1.48 paf 1137: RC;
1.1 paf 1138: }
1.48 paf 1139: break;
1140: case '{':
1.1 paf 1141: lexical_brackets_nestage++;
1.48 paf 1142: break;
1143: }
1.1 paf 1144: break;
1.48 paf 1145:
1.1 paf 1146: case LS_METHOD_AFTER:
1.69 paf 1147: if(c=='[') {/* ][ }[ )[ */
1.114 paf 1148: PC.ls=LS_METHOD_SQUARE;
1.1 paf 1149: lexical_brackets_nestage=1;
1.48 paf 1150: RC;
1.1 paf 1151: }
1.69 paf 1152: if(c=='{') {/* ]{ }{ ){ */
1.114 paf 1153: PC.ls=LS_METHOD_CURLY;
1.69 paf 1154: lexical_brackets_nestage=1;
1155: RC;
1156: }
1157: if(c=='(') {/* ]( }( )( */
1.114 paf 1158: PC.ls=LS_METHOD_ROUND;
1.1 paf 1159: lexical_brackets_nestage=1;
1.48 paf 1160: RC;
1.1 paf 1161: }
1162: pop_LS(PC);
1.114 paf 1163: PC.source--; if(--PC.col<0) { PC.line--; PC.col=-1; }
1.13 paf 1164: result=EON;
1.1 paf 1165: goto break2;
1166: }
1.9 paf 1167: if(c==0) {
1.1 paf 1168: result=-1;
1169: break;
1170: }
1171: }
1172:
1173: break2:
1.59 paf 1174: if(end!=begin) { // there is last piece?
1175: if((c=='@' || c==0) && end[-1]=='\n') { // we are before LS_DEF_NAME or EOF?
1176: // strip last \n
1.10 paf 1177: end--;
1.137 parser 1178: if(end!=begin && end[-1]=='\n') // allow one empty line before LS_DEF_NAME
1179: end--;
1.59 paf 1180: }
1.133 parser 1181: if(end!=begin && PC.ls!=LS_COMMENT) { // last piece still alive and not comment?
1.59 paf 1182: // append it
1.121 paf 1183: PC.string->APPEND_CLEAN(begin, end-begin, PC.file, begin_line/*, start_col*/);
1.30 paf 1184: }
1.59 paf 1185: }
1.114 paf 1186: if(PC.string->size()) { // something accumulated?
1.17 paf 1187: // create STRING value: array of OP_VALUE+vstring
1.114 paf 1188: *lvalp=VL(NEW VString(*PC.string));
1.10 paf 1189: // new pieces storage
1.114 paf 1190: PC.string=NEW String(POOL);
1.58 paf 1191: // make current result be pending for next call, return STRING for now
1.114 paf 1192: PC.pending_state=result; result=STRING;
1.58 paf 1193: }
1.67 paf 1194: if(skip_analized) {
1.114 paf 1195: PC.source+=skip_analized; PC.col+=skip_analized;
1.1 paf 1196: }
1.58 paf 1197: return result;
1.1 paf 1198: }
1199:
1.110 paf 1200: static int real_yyerror(parse_control *pc, char *s) { // Called by yyparse on error
1.114 paf 1201: strncpy(PC.error, s, MAX_STRING);
1.1 paf 1202: return 1;
1.110 paf 1203: }
1.1 paf 1204:
1.110 paf 1205: static void yyprint(FILE *file, int type, YYSTYPE value) {
1206: if(type==STRING)
1.120 paf 1207: fprintf(file, " \"%s\"", LA2S(value)->cstr());
1.110 paf 1208: }
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