Annotation of parser3/src/main/compile.y, revision 1.176
1.168 parser 1: %{
1.105 paf 2: /** @file
1.106 paf 3: Parser: compiler(lexical parser and grammar).
4:
1.87 paf 5: Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com)
1.168 parser 6: Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf)
1.106 paf 7:
1.176 ! paf 8: $Id: compile.y,v 1.175 2002/01/25 13:48:55 paf Exp $
1.88 paf 9: */
10:
1.106 paf 11: /**
12: @todo parser4:
13: - cache compiled code from request to request. to do that...
14: -#: make method definitions, @CLASS, @BASE, @USE instructions,
1.88 paf 15: which would be executed afterwards, and actions
16: now performed at compile time would be delayed to run time.
1.106 paf 17: -#: make cache expiration on time and on disk-change of class source
18: -#: in apache use subpools for compiled class storage
19: -#: in iis make up specialized Pool object for that
1.24 paf 20: */
21:
1.90 paf 22: #define YYSTYPE Array/*<Operation>*/ *
1.9 paf 23: #define YYPARSE_PARAM pc
24: #define YYLEX_PARAM pc
25: #define YYDEBUG 1
1.106 paf 26: #define YYERROR_VERBOSE 1
1.9 paf 27: #define yyerror(msg) real_yyerror((parse_control *)pc, msg)
28: #define YYPRINT(file, type, value) yyprint(file, type, value)
1.1 paf 29:
30: #include "compile_tools.h"
1.8 paf 31: #include "pa_value.h"
1.12 paf 32: #include "pa_request.h"
1.39 paf 33: #include "pa_vobject.h"
1.52 paf 34: #include "pa_vdouble.h"
1.98 paf 35: #include "pa_globals.h"
1.141 parser 36: #include "pa_vvoid.h"
1.39 paf 37:
1.85 paf 38: #define SELF_ELEMENT_NAME "self"
1.97 paf 39: #define USE_CONTROL_METHOD_NAME "USE"
1.1 paf 40:
1.125 paf 41: static int real_yyerror(parse_control *pc, char *s);
1.9 paf 42: static void yyprint(FILE *file, int type, YYSTYPE value);
1.125 paf 43: static int yylex(YYSTYPE *lvalp, void *pc);
1.1 paf 44:
45:
1.8 paf 46: // local convinient inplace typecast & var
1.114 paf 47: #define PC (*(parse_control *)pc)
48: #define POOL (*PC.pool)
1.25 paf 49: #undef NEW
50: #define NEW new(POOL)
1.107 paf 51: #ifndef DOXYGEN
1.1 paf 52: %}
53:
54: %pure_parser
55:
1.13 paf 56: %token EON
1.4 paf 57: %token STRING
1.1 paf 58: %token BOGUS
1.55 paf 59:
1.58 paf 60: %token BAD_STRING_COMPARISON_OPERATOR
1.114 paf 61: %token BAD_HEX_LITERAL
1.171 parser 62: %token BAD_METHOD_DECL_START
1.58 paf 63:
1.59 paf 64: %token LAND "&&"
1.58 paf 65: %token LOR "||"
1.59 paf 66: %token LXOR "##"
1.58 paf 67:
68: %token NLE "<="
69: %token NGE ">="
70: %token NEQ "=="
71: %token NNE "!="
72:
73: %token SLT "lt"
74: %token SGT "gt"
75: %token SLE "le"
76: %token SGE "ge"
77: %token SEQ "eq"
78: %token SNE "ne"
79:
1.67 paf 80: %token DEF "def"
81: %token IN "in"
82: %token FEXISTS "-f"
1.127 paf 83: %token DEXISTS "-d"
1.95 paf 84: %token IS "is"
1.67 paf 85:
1.57 paf 86: /* logical */
1.131 paf 87: %left "##"
1.57 paf 88: %left "||"
89: %left "&&"
1.131 paf 90: %left '<' '>' "<=" ">=" "lt" "gt" "le" "ge"
91: %left "==" "!=" "eq" "ne"
92: %left "is" "def" "in" "-f" "-d"
1.68 paf 93: %left '!'
1.57 paf 94:
95: /* bitwise */
1.59 paf 96: %left '#'
1.131 paf 97: %left '|'
98: %left '&'
1.68 paf 99: %left '~'
1.57 paf 100:
1.56 paf 101: /* numerical */
1.55 paf 102: %left '-' '+'
1.173 paf 103: %left '*' '/' '%' '\\'
1.56 paf 104: %left NEG /* negation: unary - */
1.1 paf 105:
106: %%
1.152 parser 107: all:
1.10 paf 108: one_big_piece {
1.75 paf 109: Method& method=*NEW Method(POOL,
1.85 paf 110: *main_method_name,
1.122 paf 111: Method::CT_ANY,
1.81 paf 112: 0, 0, /*min, max numbered_params_count*/
1.75 paf 113: 0/*param_names*/, 0/*local_names*/,
114: $1/*parser_code*/, 0/*native_code*/);
1.114 paf 115: PC.cclass->add_method(*main_method_name, method);
1.10 paf 116: }
117: | methods;
118:
119: methods: method | methods method;
120: one_big_piece: maybe_codes;
121:
1.34 paf 122: method: control_method | code_method;
123:
124: control_method: '@' STRING '\n'
1.132 paf 125: maybe_control_strings {
1.120 paf 126: const String& command=*LA2S($2);
1.34 paf 127: YYSTYPE strings_code=$4;
1.37 paf 128: if(strings_code->size()<1*2) {
1.114 paf 129: strcpy(PC.error, "@");
130: strcat(PC.error, command.cstr());
131: strcat(PC.error, " is empty");
1.37 paf 132: YYERROR;
133: }
1.74 paf 134: if(command==CLASS_NAME) {
1.146 parser 135: if(PC.cclass->base()) { // already changed from default?
1.114 paf 136: strcpy(PC.error, "class already have a name '");
137: strncat(PC.error, PC.cclass->name().cstr(), 100);
138: strcat(PC.error, "'");
1.73 paf 139: YYERROR;
140: }
141: if(strings_code->size()==1*2) {
142: // new class' name
1.120 paf 143: const String *name=LA2S(strings_code);
1.73 paf 144: // creating the class
1.114 paf 145: PC.cclass=NEW VClass(POOL);
146: PC.cclass->set_name(*name);
1.73 paf 147: // append to request's classes
1.114 paf 148: PC.request->classes().put(*name, PC.cclass);
1.73 paf 149: } else {
1.114 paf 150: strcpy(PC.error, "@"CLASS_NAME" must contain sole name");
1.34 paf 151: YYERROR;
152: }
1.130 paf 153: } else if(command==USE_CONTROL_METHOD_NAME) {
154: for(int i=0; i<strings_code->size(); i+=2)
1.159 parser 155: PC.request->use_file(*LA2S(strings_code, i));
1.130 paf 156: } else if(command==BASE_NAME) {
1.146 parser 157: if(PC.cclass->base()) { // already changed from default?
1.130 paf 158: strcpy(PC.error, "class already have a base '");
159: strncat(PC.error, PC.cclass->base()->name().cstr(), 100);
160: strcat(PC.error, "'");
161: YYERROR;
162: }
163: if(strings_code->size()==1*2) {
164: const String& base_name=*LA2S(strings_code);
165: VClass *base=static_cast<VClass *>(
166: PC.request->classes().get(base_name));
167: if(!base) {
168: strcpy(PC.error, base_name.cstr());
169: strcat(PC.error, ": undefined class in @"BASE_NAME);
1.73 paf 170: YYERROR;
171: }
1.130 paf 172: // @CLASS == @BASE sanity check
173: if(PC.cclass==base) {
174: strcpy(PC.error, "@"CLASS_NAME" equals @"BASE_NAME);
1.45 paf 175: YYERROR;
1.34 paf 176: }
1.130 paf 177: PC.cclass->set_base(*base);
1.34 paf 178: } else {
1.130 paf 179: strcpy(PC.error, "@"BASE_NAME" must contain sole name");
1.34 paf 180: YYERROR;
181: }
1.130 paf 182: } else {
183: strcpy(PC.error, "'");
184: strncat(PC.error, command.cstr(), MAX_STRING/2);
185: strcat(PC.error, "' invalid special name. valid names are "
186: "'"CLASS_NAME"', '"USE_CONTROL_METHOD_NAME"' and '"BASE_NAME"'");
187: YYERROR;
1.34 paf 188: }
189: };
1.132 paf 190: maybe_control_strings: empty | control_strings;
1.37 paf 191: control_strings: control_string | control_strings control_string { $$=$1; P($$, $2) };
192: control_string: maybe_string '\n';
193: maybe_string: empty | STRING;
1.34 paf 194:
195: code_method: '@' STRING bracketed_maybe_strings maybe_bracketed_strings maybe_comment '\n'
1.10 paf 196: maybe_codes {
1.120 paf 197: const String *name=LA2S($2);
1.10 paf 198:
199: YYSTYPE params_names_code=$3;
1.75 paf 200: Array *params_names=0;
201: if(int size=params_names_code->size()) {
202: params_names=NEW Array(POOL);
203: for(int i=0; i<size; i+=2)
1.120 paf 204: *params_names+=LA2S(params_names_code, i);
1.75 paf 205: }
1.10 paf 206:
207: YYSTYPE locals_names_code=$4;
1.75 paf 208: Array *locals_names=0;
209: if(int size=locals_names_code->size()) {
210: locals_names=NEW Array(POOL);
211: for(int i=0; i<size; i+=2)
1.120 paf 212: *locals_names+=LA2S(locals_names_code, i);
1.75 paf 213: }
1.10 paf 214:
1.76 paf 215: Method& method=*NEW Method(POOL,
216: *name,
1.122 paf 217: Method::CT_ANY,
1.81 paf 218: 0, 0/*min,max numbered_params_count*/,
1.76 paf 219: params_names, locals_names,
220: $7, 0);
1.114 paf 221: PC.cclass->add_method(*name, method);
1.8 paf 222: };
1.10 paf 223:
224: maybe_bracketed_strings: empty | bracketed_maybe_strings;
225: bracketed_maybe_strings: '[' maybe_strings ']' {$$=$2};
226: maybe_strings: empty | strings;
227: strings: STRING | strings ';' STRING { $$=$1; P($$, $3) };
228:
229: maybe_comment: empty | STRING;
1.1 paf 230:
231: /* codes */
232:
1.10 paf 233: maybe_codes: empty | codes;
234:
1.90 paf 235: codes: code | codes code { $$=$1; P($$, $2) };
1.81 paf 236: code: write_string | action;
1.149 parser 237: action: get | put | call;
1.1 paf 238:
239: /* get */
240:
1.64 paf 241: get: get_value {
242: $$=$1; /* stack: resulting value */
1.102 paf 243: O($$, OP_WRITE_VALUE); /* value=pop; wcontext.write(value) */
1.1 paf 244: };
1.163 parser 245: get_value: '$' get_name_value { $$=$2 };
1.64 paf 246: get_name_value: name_without_curly_rdive EON | name_in_curly_rdive;
1.1 paf 247: name_in_curly_rdive: '{' name_without_curly_rdive '}' { $$=$2 };
1.44 paf 248: name_without_curly_rdive:
249: name_without_curly_rdive_read
250: | name_without_curly_rdive_class;
1.19 paf 251: name_without_curly_rdive_read: name_without_curly_rdive_code {
1.25 paf 252: $$=N(POOL);
1.22 paf 253: Array *diving_code=$1;
1.120 paf 254: const String *first_name=LA2S(diving_code);
1.85 paf 255: if(first_name && *first_name==SELF_ELEMENT_NAME) {
1.54 paf 256: O($$, OP_WITH_SELF); /* stack: starting context */
1.22 paf 257: P($$, diving_code,
258: /* skip over... */
259: diving_code->size()>2?3/*OP_+string+get_element*/:2/*OP_+string*/);
260: } else {
1.54 paf 261: O($$, OP_WITH_READ); /* stack: starting context */
1.22 paf 262: P($$, diving_code);
263: }
264: /* diving code; stack: current context */
1.1 paf 265: };
1.155 parser 266: name_without_curly_rdive_class: class_prefix name_without_curly_rdive_code { $$=$1; P($$, $2) };
1.19 paf 267: name_without_curly_rdive_code: name_advance2 | name_path name_advance2 { $$=$1; P($$, $2) };
1.1 paf 268:
269: /* put */
270:
1.81 paf 271: put: '$' name_expr_wdive construct {
1.20 paf 272: $$=$2; /* stack: context,name */
1.52 paf 273: P($$, $3); /* stack: context,name,constructor_value */
1.20 paf 274: };
1.44 paf 275: name_expr_wdive:
1.157 parser 276: name_expr_wdive_root
277: | name_expr_wdive_write
1.44 paf 278: | name_expr_wdive_class;
1.157 parser 279: name_expr_wdive_root: name_expr_dive_code {
1.44 paf 280: $$=N(POOL);
1.23 paf 281: Array *diving_code=$1;
1.120 paf 282: const String *first_name=LA2S(diving_code);
1.85 paf 283: if(first_name && *first_name==SELF_ELEMENT_NAME) {
1.54 paf 284: O($$, OP_WITH_SELF); /* stack: starting context */
1.23 paf 285: P($$, diving_code,
286: /* skip over... */
287: diving_code->size()>2?3/*OP_+string+get_element*/:2/*OP_+string*/);
288: } else {
1.157 parser 289: O($$, OP_WITH_ROOT); /* stack: starting context */
1.23 paf 290: P($$, diving_code);
291: }
292: /* diving code; stack: current context */
1.156 parser 293: };
1.157 parser 294: name_expr_wdive_write: '.' name_expr_dive_code {
1.156 parser 295: $$=N(POOL);
1.157 parser 296: O($$, OP_WITH_WRITE); /* stack: starting context */
1.156 parser 297: P($$, $2); /* diving code; stack: context,name */
1.20 paf 298: };
1.155 parser 299: name_expr_wdive_class: class_prefix name_expr_dive_code { $$=$1; P($$, $2) };
1.20 paf 300:
1.149 parser 301: construct:
1.163 parser 302: construct_square
303: | construct_round
304: | construct_curly
1.149 parser 305: ;
306: construct_square: '[' any_constructor_code_value ']' {
307: // stack: context, name
308: $$=$2; // stack: context, name, value
1.81 paf 309: O($$, OP_CONSTRUCT_VALUE); /* value=pop; name=pop; context=pop; construct(context,name,value) */
310: }
311: ;
1.149 parser 312: construct_round: '(' expr_value ')' {
313: // stack: context, name
1.176 ! paf 314: $$=N(POOL);
! 315: O($$, OP_PREPARE_TO_CONSTRUCT_EXPR); /* drop change execution state */
! 316: P($$, $2); // stack: context, name, value
1.163 parser 317: O($$, OP_CONSTRUCT_EXPR); /* value=pop->as_expr_result; name=pop; context=pop; construct(context,name,value) */
1.81 paf 318: }
1.52 paf 319: ;
1.149 parser 320: construct_curly: '{' maybe_codes '}' {
321: // stack: context, name
322: $$=N(POOL);
323: CCA($$, $2); /* code=pop; name=pop; context=pop; construct(context,name,junction(code)) */
324: };
325:
1.55 paf 326: any_constructor_code_value:
1.157 parser 327: void_value /* optimized $var[] case */
1.52 paf 328: | STRING /* optimized $var[STRING] case */
1.55 paf 329: | constructor_code_value /* $var[something complex] */
1.1 paf 330: ;
1.55 paf 331: constructor_code_value: constructor_code {
1.25 paf 332: $$=N(POOL);
1.54 paf 333: O($$, OP_CREATE_EWPOOL); /* stack: empty write context */
1.69 paf 334: P($$, $1); /* some code that writes to that context */
1.54 paf 335: O($$, OP_REDUCE_EWPOOL); /* context=pop; stack: context.value() */
1.1 paf 336: };
1.55 paf 337: constructor_code: codes__excluding_sole_str_literal;
1.27 paf 338: codes__excluding_sole_str_literal: action | code codes { $$=$1; P($$, $2) };
339:
1.1 paf 340: /* call */
341:
1.66 paf 342: call: call_value {
343: $$=$1; /* stack: value */
1.102 paf 344: O($$, OP_WRITE_VALUE); /* value=pop; wcontext.write(value) */
1.66 paf 345: };
1.154 parser 346: call_value: '^' { PC.object_constructor_allowed=true }
347: call_name { PC.object_constructor_allowed=false }
348: store_params EON { /* ^field.$method{vasya} */
349: $$=$3; /* with_xxx,diving code; stack: context,method_junction */
1.54 paf 350: O($$, OP_GET_METHOD_FRAME); /* stack: context,method_frame */
1.123 paf 351:
1.154 parser 352: YYSTYPE params_code=$5;
1.140 parser 353: if(params_code->size()==3) // probably [] case. [OP_VALUE + Void + STORE_PARAM]
1.123 paf 354: if(Value *value=LA2V(params_code)) // it is OP_VALUE + value?
1.140 parser 355: if(!value->is_defined()) // value is VVoid?
1.123 paf 356: params_code=0; // ^zzz[] case. don't append lone empty param.
357: if(params_code)
358: P($$, params_code); // filling method_frame.store_params
1.155 parser 359: O($$, OP_CALL); // method_frame=pop; ncontext=pop; call(ncontext,method_frame) stack: value
1.1 paf 360: };
361:
1.43 paf 362: call_name: name_without_curly_rdive;
1.38 paf 363:
1.9 paf 364: store_params: store_param | store_params store_param { $$=$1; P($$, $2) };
1.69 paf 365: store_param:
366: store_square_param
367: | store_round_param
368: | store_curly_param
1.31 paf 369: ;
1.123 paf 370: store_square_param: '[' store_code_param_parts ']' {$$=$2};
1.69 paf 371: store_round_param: '(' store_expr_param_parts ')' {$$=$2};
1.94 paf 372: store_curly_param: '{' store_curly_param_parts '}' {$$=$2};
1.69 paf 373: store_code_param_parts:
374: store_code_param_part
375: | store_code_param_parts ';' store_code_param_part { $$=$1; P($$, $3) }
376: ;
377: store_expr_param_parts:
378: store_expr_param_part
379: | store_expr_param_parts ';' store_expr_param_part { $$=$1; P($$, $3) }
380: ;
1.94 paf 381: store_curly_param_parts:
382: store_curly_param_part
383: | store_curly_param_parts ';' store_curly_param_part { $$=$1; P($$, $3) }
384: ;
1.120 paf 385: store_code_param_part: code_param_value {
1.32 paf 386: $$=$1;
1.54 paf 387: O($$, OP_STORE_PARAM);
1.120 paf 388: };
1.69 paf 389: store_expr_param_part: write_expr_value {
390: $$=N(POOL);
1.103 paf 391: PEA($$, $1);
1.69 paf 392: };
1.94 paf 393: store_curly_param_part: maybe_codes {
394: $$=N(POOL);
395: PCA($$, $1);
396: };
1.120 paf 397: code_param_value:
1.157 parser 398: void_value /* optimized [;...] case */
1.120 paf 399: | STRING /* optimized [STRING] case */
400: | constructor_code_value /* [something complex] */
401: ;
1.90 paf 402: write_expr_value: expr_value {
1.69 paf 403: $$=$1;
1.102 paf 404: O($$, OP_WRITE_EXPR_RESULT);
1.69 paf 405: };
1.1 paf 406:
407: /* name */
408:
1.20 paf 409: name_expr_dive_code: name_expr_value | name_path name_expr_value { $$=$1; P($$, $2) };
1.1 paf 410:
1.9 paf 411: name_path: name_step | name_path name_step { $$=$1; P($$, $2) };
1.1 paf 412: name_step: name_advance1 '.';
413: name_advance1: name_expr_value {
414: /* stack: context */
415: $$=$1; /* stack: context,name */
1.54 paf 416: O($$, OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */
1.1 paf 417: };
418: name_advance2: name_expr_value {
419: /* stack: context */
420: $$=$1; /* stack: context,name */
1.54 paf 421: O($$, OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */
1.1 paf 422: }
1.4 paf 423: | STRING BOGUS
1.1 paf 424: ;
425: name_expr_value:
1.4 paf 426: STRING /* subname_is_const */
1.1 paf 427: | name_expr_subvar_value /* $subname_is_var_value */
1.160 parser 428: | name_expr_with_subvar_value /* xxx$part_of_subname_is_var_value */
1.166 parser 429: | name_square_code_value /* [codes] */
1.1 paf 430: ;
431: name_expr_subvar_value: '$' subvar_ref_name_rdive {
432: $$=$2;
1.54 paf 433: O($$, OP_GET_ELEMENT);
1.1 paf 434: };
1.4 paf 435: name_expr_with_subvar_value: STRING subvar_get_writes {
1.25 paf 436: $$=N(POOL);
1.54 paf 437: O($$, OP_CREATE_EWPOOL);
1.9 paf 438: P($$, $1);
1.102 paf 439: O($$, OP_WRITE_VALUE);
1.9 paf 440: P($$, $2);
1.54 paf 441: O($$, OP_REDUCE_EWPOOL);
1.1 paf 442: };
1.166 parser 443: name_square_code_value: '[' codes ']' {
1.160 parser 444: $$=N(POOL);
445: O($$, OP_CREATE_EWPOOL);
446: P($$, $2);
447: O($$, OP_REDUCE_EWPOOL);
448: };
1.154 parser 449: subvar_ref_name_rdive: STRING {
1.25 paf 450: $$=N(POOL);
1.54 paf 451: O($$, OP_WITH_READ);
1.9 paf 452: P($$, $1);
1.1 paf 453: };
1.9 paf 454: subvar_get_writes: subvar__get_write | subvar_get_writes subvar__get_write { $$=$1; P($$, $2) };
1.1 paf 455: subvar__get_write: '$' subvar_ref_name_rdive {
456: $$=$2;
1.54 paf 457: O($$, OP_GET_ELEMENT__WRITE);
1.42 paf 458: };
459:
1.154 parser 460: class_prefix:
461: class_static_prefix
462: | class_constructor_prefix
463: ;
1.155 parser 464: class_static_prefix: STRING ':' {
465: $$=$1; // stack: class name string
466: O($$, OP_GET_CLASS);
467: };
468: class_constructor_prefix: class_static_prefix ':' {
1.154 parser 469: $$=$1;
470: if(!PC.object_constructor_allowed) {
471: strcpy(PC.error, ":: not allowed here");
472: YYERROR;
473: }
1.155 parser 474: O($$, OP_PREPARE_TO_CONSTRUCT_OBJECT);
1.1 paf 475: };
476:
1.53 paf 477:
1.56 paf 478: /* expr */
1.53 paf 479:
1.81 paf 480: expr_value: expr {
481: if(($$=$1)->size()==2) // only one string literal in there?
1.62 paf 482: change_string_literal_to_double_literal($$); // make that string literal Double
483: };
1.56 paf 484: expr:
1.62 paf 485: STRING
1.64 paf 486: | get_value
1.66 paf 487: | call_value
1.64 paf 488: | '"' string_inside_quotes_value '"' { $$ = $2; }
1.145 parser 489: | '\'' string_inside_quotes_value '\'' { $$ = $2; }
1.60 paf 490: | '(' expr ')' { $$ = $2; }
491: /* stack: operand // stack: @operand */
492: | '-' expr %prec NEG { $$=$2; O($$, OP_NEG) }
1.166 parser 493: | '+' expr %prec NEG { $$=$2 }
1.68 paf 494: | '~' expr { $$=$2; O($$, OP_INV) }
495: | '!' expr { $$=$2; O($$, OP_NOT) }
496: | "def" expr { $$=$2; O($$, OP_DEF) }
497: | "in" expr { $$=$2; O($$, OP_IN) }
498: | "-f" expr { $$=$2; O($$, OP_FEXISTS) }
1.127 paf 499: | "-d" expr { $$=$2; O($$, OP_DEXISTS) }
1.60 paf 500: /* stack: a,b // stack: a@b */
501: | expr '-' expr { $$=$1; P($$, $3); O($$, OP_SUB) }
502: | expr '+' expr { $$=$1; P($$, $3); O($$, OP_ADD) }
503: | expr '*' expr { $$=$1; P($$, $3); O($$, OP_MUL) }
504: | expr '/' expr { $$=$1; P($$, $3); O($$, OP_DIV) }
505: | expr '%' expr { $$=$1; P($$, $3); O($$, OP_MOD) }
1.173 paf 506: | expr '\\' expr { $$=$1; P($$, $3); O($$, OP_INTDIV) }
1.60 paf 507: | expr '&' expr { $$=$1; P($$, $3); O($$, OP_BIN_AND) }
508: | expr '|' expr { $$=$1; P($$, $3); O($$, OP_BIN_OR) }
509: | expr '#' expr { $$=$1; P($$, $3); O($$, OP_BIN_XOR) }
1.174 paf 510: | expr "&&" expr { $$=$1; PNC($$, $3); O($$, OP_LOG_AND) }
511: | expr "||" expr { $$=$1; PNC($$, $3); O($$, OP_LOG_OR) }
1.60 paf 512: | expr "##" expr { $$=$1; P($$, $3); O($$, OP_LOG_XOR) }
513: | expr '<' expr { $$=$1; P($$, $3); O($$, OP_NUM_LT) }
514: | expr '>' expr { $$=$1; P($$, $3); O($$, OP_NUM_GT) }
515: | expr "<=" expr { $$=$1; P($$, $3); O($$, OP_NUM_LE) }
516: | expr ">=" expr { $$=$1; P($$, $3); O($$, OP_NUM_GE) }
517: | expr "==" expr { $$=$1; P($$, $3); O($$, OP_NUM_EQ) }
518: | expr "!=" expr { $$=$1; P($$, $3); O($$, OP_NUM_NE) }
1.61 paf 519: | expr "lt" expr { $$=$1; P($$, $3); O($$, OP_STR_LT) }
520: | expr "gt" expr { $$=$1; P($$, $3); O($$, OP_STR_GT) }
521: | expr "le" expr { $$=$1; P($$, $3); O($$, OP_STR_LE) }
522: | expr "ge" expr { $$=$1; P($$, $3); O($$, OP_STR_GE) }
523: | expr "eq" expr { $$=$1; P($$, $3); O($$, OP_STR_EQ) }
524: | expr "ne" expr { $$=$1; P($$, $3); O($$, OP_STR_NE) }
1.95 paf 525: | expr "is" expr { $$=$1; P($$, $3); O($$, OP_IS) }
1.56 paf 526: ;
1.55 paf 527:
1.65 paf 528: string_inside_quotes_value: maybe_codes {
1.64 paf 529: $$=N(POOL);
530: O($$, OP_CREATE_SWPOOL); /* stack: empty write context */
1.69 paf 531: P($$, $1); /* some code that writes to that context */
1.64 paf 532: O($$, OP_REDUCE_SWPOOL); /* context=pop; stack: context.get_string() */
1.53 paf 533: };
1.1 paf 534:
1.27 paf 535: /* basics */
1.1 paf 536:
1.81 paf 537: write_string: STRING {
1.102 paf 538: // optimized from OP_STRING+OP_WRITE_VALUE to OP_STRING__WRITE
1.84 paf 539: change_string_literal_to_write_string_literal($$=$1)
1.54 paf 540: };
541:
1.157 parser 542: void_value: /* empty */ { $$=VL(NEW VVoid(POOL)) };
1.25 paf 543: empty: /* empty */ { $$=N(POOL) };
1.1 paf 544:
545: %%
1.105 paf 546: #endif
1.1 paf 547:
548: /*
549: 000$111(2222)00
550: 000$111{3333}00
1.9 paf 551: $,^: push,=0
1.1 paf 552: 1:( { break=pop
553: 2:( ) pop
554: 3:{ } pop
555:
556: 000^111(2222)4444{33333}4000
1.9 paf 557: $,^: push,=0
1.1 paf 558: 1:( { break=pop
559: 2:( )=4
560: 3:{ }=4
561: 4:[^({]=pop
562: */
563:
1.110 paf 564: static int yylex(YYSTYPE *lvalp, void *pc) {
1.114 paf 565: #define lexical_brackets_nestage PC.brackets_nestages[PC.sp]
1.48 paf 566: #define RC {result=c; goto break2; }
1.1 paf 567:
568: register int c;
569: int result;
570:
1.114 paf 571: if(PC.pending_state) {
572: result=PC.pending_state;
573: PC.pending_state=0;
1.1 paf 574: return result;
575: }
576:
1.114 paf 577: const char *begin=PC.source;
1.91 paf 578: const char *end;
1.114 paf 579: int begin_line=PC.line;
1.67 paf 580: int skip_analized=0;
1.50 paf 581: while(true) {
1.114 paf 582: c=*(end=(PC.source++));
1.166 parser 583: // fprintf(stderr, "\nchar: %c %02X; nestage: %d, sp=%d", c, c, lexical_brackets_nestage, PC.sp);
1.1 paf 584:
1.4 paf 585: if(c=='\n') {
1.114 paf 586: PC.line++;
587: PC.col=0;
1.10 paf 588: } else
1.114 paf 589: PC.col++;
1.73 paf 590:
1.171 parser 591: if(c=='@' && PC.col==0+1) {
1.175 paf 592: if(PC.ls==LS_DEF_SPECIAL_BODY) {
593: // @SPECIAL
594: // ...
595: // @<here =
596: pop_LS(PC); // exiting from LS_DEF_SPECIAL_BODY state
597: } // continuing checks
1.171 parser 598: if(PC.ls==LS_USER) {
599: push_LS(PC, LS_DEF_NAME);
600: RC;
1.175 paf 601: } else // @ in first column inside some code [when could that be?]
1.171 parser 602: result=BAD_METHOD_DECL_START;
603: goto break2;
604: } else if(c=='^')
1.169 parser 605: switch(PC.ls) {
606: case LS_EXPRESSION_VAR_NAME_WITH_COLON:
607: case LS_EXPRESSION_VAR_NAME_WITHOUT_COLON:
608: case LS_VAR_NAME_SIMPLE_WITH_COLON:
609: case LS_VAR_NAME_SIMPLE_WITHOUT_COLON:
610: case LS_VAR_NAME_CURLY:
611: case LS_METHOD_NAME:
612: case LS_COMMENT:
613: case LS_DEF_COMMENT:
614: // no literals in names, please
615: break;
616: default:
1.114 paf 617: switch(*PC.source) {
1.165 parser 618: // ^escaping some punctuators
1.48 paf 619: case '^': case '$': case ';':
1.126 paf 620: case '(': case ')':
1.48 paf 621: case '[': case ']':
622: case '{': case '}':
1.172 parser 623: case '"': case ':':
1.40 paf 624: if(end!=begin) {
625: // append piece till ^
1.121 paf 626: PC.string->APPEND_CLEAN(begin, end-begin, PC.file, begin_line);
1.40 paf 627: }
1.63 paf 628: // reset piece 'begin' position & line
1.164 parser 629: end=begin=PC.source; // ^
1.114 paf 630: begin_line=PC.line;
1.164 parser 631: if(PC.ls==LS_METHOD_AFTER) {
632: pop_LS(PC);
633: result=EON;
1.165 parser 634: skip_analized=-1; // return to ^ afterwards to assure it's literality
1.164 parser 635: goto break2;
636: } else {
637: // skip over _ after ^
638: PC.source++; PC.col++;
639: // skip analysis = forced literal
640: continue;
641: }
1.114 paf 642:
643: // converting ^#HH into char(hex(HH))
644: case '#':
645: if(end!=begin) {
646: // append piece till ^
1.121 paf 647: PC.string->APPEND_CLEAN(begin, end-begin, PC.file, begin_line);
1.114 paf 648: }
649: // #HH ?
650: if(PC.source[0]=='#' && PC.source[1] && PC.source[2]) {
651: char *hex=(char *)POOL.malloc(1);
652: hex[0]=
653: hex_value[(unsigned char)PC.source[1]]*0x10+
654: hex_value[(unsigned char)PC.source[2]];
655: if(hex[0]==0) {
656: result=BAD_HEX_LITERAL;
657: goto break2; // wrong hex value[no ^#00 chars allowed]: bail out
658: }
659: // append char(hex(HH))
1.121 paf 660: PC.string->APPEND_CLEAN(hex, 1, PC.file, begin_line);
1.114 paf 661: // skip over ^#HH
662: PC.source+=3;
663: PC.col+=3;
664: // reset piece 'begin' position & line
665: begin=PC.source; // ^
666: begin_line=PC.line;
667: continue;
668: }
669: break;
1.1 paf 670: }
1.169 parser 671: break;
672: }
1.113 paf 673: // #comment start skipping
1.114 paf 674: if(c=='#' && PC.col==1) {
1.112 paf 675: if(end!=begin) {
676: // append piece till #
1.121 paf 677: PC.string->APPEND_CLEAN(begin, end-begin, PC.file, begin_line);
1.112 paf 678: }
679: // fall into COMMENT lexical state [wait for \n]
680: push_LS(PC, LS_COMMENT);
1.175 paf 681: continue;
1.112 paf 682: }
1.114 paf 683: switch(PC.ls) {
1.10 paf 684:
685: // USER'S = NOT OURS
1.1 paf 686: case LS_USER:
1.166 parser 687: case LS_NAME_SQUARE_PART: // name.[here].xxx
1.153 parser 688: if(PC.trim_bof)
689: switch(c) {
690: case '\n': case ' ': case '\t':
1.152 parser 691: begin=PC.source;
692: begin_line=PC.line;
693: continue; // skip it
1.153 parser 694: default:
695: PC.trim_bof=false;
1.152 parser 696: }
1.48 paf 697: switch(c) {
698: case '$':
1.166 parser 699: push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 700: RC;
701: case '^':
702: push_LS(PC, LS_METHOD_NAME);
703: RC;
1.166 parser 704: case ']':
705: if(PC.ls==LS_NAME_SQUARE_PART)
706: if(--lexical_brackets_nestage==0) {// $name.[co<]?>de<]?>
707: pop_LS(PC); // $name.[co<]>de<]!>
708: RC;
709: }
1.160 parser 710: break;
1.166 parser 711: case '[': // $name.[co<[>de]
712: if(PC.ls==LS_NAME_SQUARE_PART)
713: lexical_brackets_nestage++;
1.161 parser 714: break;
1.112 paf 715: }
716: break;
717:
718: // #COMMENT
719: case LS_COMMENT:
720: if(c=='\n') {
721: // skip comment
1.114 paf 722: begin=PC.source;
723: begin_line=PC.line;
1.112 paf 724:
725: pop_LS(PC);
726: continue;
1.1 paf 727: }
1.48 paf 728: break;
729:
730: // STRING IN EXPRESSION
1.145 parser 731: case LS_EXPRESSION_STRING_QUOTED:
732: case LS_EXPRESSION_STRING_APOSTROFED:
1.48 paf 733: switch(c) {
734: case '"':
1.145 parser 735: case '\'':
736: if(
737: PC.ls == LS_EXPRESSION_STRING_QUOTED && c=='"' ||
738: PC.ls == LS_EXPRESSION_STRING_APOSTROFED && c=='\'') {
739: pop_LS(PC); //"abc". | 'abc'.
740: RC;
741: }
742: break;
1.48 paf 743: case '$':
1.166 parser 744: push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 745: RC;
746: case '^':
1.10 paf 747: push_LS(PC, LS_METHOD_NAME);
1.48 paf 748: RC;
1.10 paf 749: }
750: break;
751:
752: // METHOD DEFINITION
753: case LS_DEF_NAME:
1.48 paf 754: switch(c) {
755: case '[':
1.114 paf 756: PC.ls=LS_DEF_PARAMS;
1.48 paf 757: RC;
758: case '\n':
1.114 paf 759: PC.ls=LS_DEF_SPECIAL_BODY;
1.48 paf 760: RC;
1.10 paf 761: }
762: break;
1.48 paf 763:
1.10 paf 764: case LS_DEF_PARAMS:
1.48 paf 765: switch(c) {
766: case ';':
767: RC;
768: case ']':
1.114 paf 769: PC.ls=*PC.source=='['?LS_DEF_LOCALS:LS_DEF_COMMENT;
1.48 paf 770: RC;
1.49 paf 771: case '\n': // wrong. bailing out
1.10 paf 772: pop_LS(PC);
1.48 paf 773: RC;
1.10 paf 774: }
775: break;
1.48 paf 776:
1.10 paf 777: case LS_DEF_LOCALS:
1.48 paf 778: switch(c) {
779: case '[':
780: case ';':
781: RC;
782: case ']':
1.114 paf 783: PC.ls=LS_DEF_COMMENT;
1.48 paf 784: RC;
785: case '\n': // wrong. bailing out
1.10 paf 786: pop_LS(PC);
1.48 paf 787: RC;
1.10 paf 788: }
789: break;
1.48 paf 790:
1.10 paf 791: case LS_DEF_COMMENT:
792: if(c=='\n') {
793: pop_LS(PC);
1.48 paf 794: RC;
1.37 paf 795: }
796: break;
797:
1.48 paf 798: case LS_DEF_SPECIAL_BODY:
1.175 paf 799: if(c=='\n')
1.48 paf 800: RC;
801: break;
802:
803: // (EXPRESSION)
1.69 paf 804: case LS_VAR_ROUND:
805: case LS_METHOD_ROUND:
1.48 paf 806: switch(c) {
807: case ')':
808: if(--lexical_brackets_nestage==0)
1.114 paf 809: if(PC.ls==LS_METHOD_ROUND) // method round param ended
810: PC.ls=LS_METHOD_AFTER; // look for method end
811: else // PC.ls==LS_VAR_ROUND // variable constructor ended
1.69 paf 812: pop_LS(PC); // return to normal life
1.48 paf 813: RC;
814: case '$':
1.166 parser 815: push_LS(PC, LS_EXPRESSION_VAR_NAME_WITH_COLON);
1.48 paf 816: RC;
817: case '^':
818: push_LS(PC, LS_METHOD_NAME);
819: RC;
820: case '(':
821: lexical_brackets_nestage++;
822: RC;
1.67 paf 823: case '-':
1.127 paf 824: switch(*PC.source) {
825: case 'f': // -f
1.67 paf 826: skip_analized=1;
827: result=FEXISTS;
1.127 paf 828: goto break2;
829: case 'd': // -d
830: skip_analized=1;
831: result=DEXISTS;
832: goto break2;
833: default:
1.67 paf 834: result=c;
1.127 paf 835: goto break2;
836: }
1.67 paf 837: goto break2;
1.173 paf 838: case '+': case '*': case '/': case '%': case '\\':
1.58 paf 839: case '~':
1.48 paf 840: case ';':
841: RC;
1.59 paf 842: case '&': case '|': case '#':
1.114 paf 843: if(*PC.source==c) { // && ||
1.59 paf 844: result=c=='#'?LXOR:c=='&'?LAND:LOR;
1.67 paf 845: skip_analized=1;
1.58 paf 846: } else
847: result=c;
848: goto break2;
849: case '<': case '>': case '=': case '!':
1.114 paf 850: if(*PC.source=='=') { // <= >= == !=
1.67 paf 851: skip_analized=1;
1.58 paf 852: switch(c) {
853: case '<': result=NLE; break;
854: case '>': result=NGE; break;
855: case '=': result=NEQ; break;
856: case '!': result=NNE; break;
857: }
858: } else
859: result=c;
860: goto break2;
1.48 paf 861: case '"':
1.145 parser 862: push_LS(PC, LS_EXPRESSION_STRING_QUOTED);
863: RC;
864: case '\'':
865: push_LS(PC, LS_EXPRESSION_STRING_APOSTROFED);
1.48 paf 866: RC;
1.50 paf 867: case 'l': case 'g': case 'e': case 'n':
1.51 paf 868: if(end==begin) // right after whitespace
1.117 paf 869: if(isspace(PC.source[1])) {
870: switch(*PC.source) {
871: // case '?': // ok [and bad cases, yacc would bark at them]
872: case 't': // lt gt [et nt]
873: result=c=='l'?SLT:c=='g'?SGT:BAD_STRING_COMPARISON_OPERATOR;
874: skip_analized=1;
875: goto break2;
876: case 'e': // le ge ne [ee]
877: result=c=='l'?SLE:c=='g'?SGE:c=='n'?SNE:BAD_STRING_COMPARISON_OPERATOR;
878: skip_analized=1;
879: goto break2;
880: case 'q': // eq [lq gq nq]
881: result=c=='e'?SEQ:BAD_STRING_COMPARISON_OPERATOR;
882: skip_analized=1;
883: goto break2;
884: }
1.67 paf 885: }
886: break;
887: case 'i':
888: if(end==begin) // right after whitespace
1.117 paf 889: if(isspace(PC.source[1])) {
890: switch(PC.source[0]) {
891: case 'n': // in
1.95 paf 892: skip_analized=1;
893: result=IN;
894: goto break2;
1.117 paf 895: case 's': // is
1.95 paf 896: skip_analized=1;
897: result=IS;
898: goto break2;
899: }
1.67 paf 900: }
901: break;
902: case 'd':
903: if(end==begin) // right after whitespace
1.114 paf 904: if(PC.source[0]=='e' && PC.source[1]=='f') { // def
1.67 paf 905: skip_analized=2;
906: result=DEF;
1.58 paf 907: goto break2;
1.50 paf 908: }
1.48 paf 909: break;
910: case ' ': case '\t': case '\n':
1.63 paf 911: if(end!=begin) { // there were a string after previous operator?
912: result=0; // return that string
913: goto break2;
1.48 paf 914: }
1.63 paf 915: // that's a leading|traling space or after-operator-space
916: // ignoring it
917: // reset piece 'begin' position & line
1.114 paf 918: begin=PC.source; // after whitespace char
919: begin_line=PC.line;
1.48 paf 920: continue;
1.1 paf 921: }
922: break;
923:
1.10 paf 924: // VARIABLE GET/PUT/WITH
1.166 parser 925: case LS_VAR_NAME_SIMPLE_WITH_COLON:
926: case LS_VAR_NAME_SIMPLE_WITHOUT_COLON:
927: case LS_EXPRESSION_VAR_NAME_WITH_COLON:
928: case LS_EXPRESSION_VAR_NAME_WITHOUT_COLON:
929: if(
930: PC.ls==LS_EXPRESSION_VAR_NAME_WITH_COLON ||
931: PC.ls==LS_EXPRESSION_VAR_NAME_WITHOUT_COLON) {
1.56 paf 932: // name in expr ends also before binary operators
1.48 paf 933: switch(c) {
1.92 paf 934: case '-':
1.48 paf 935: pop_LS(PC);
1.114 paf 936: PC.source--; if(--PC.col<0) { PC.line--; PC.col=-1; }
1.48 paf 937: result=EON;
938: goto break2;
939: }
940: }
1.166 parser 941: if(
942: PC.ls==LS_VAR_NAME_SIMPLE_WITHOUT_COLON ||
943: PC.ls==LS_EXPRESSION_VAR_NAME_WITHOUT_COLON) {
1.142 parser 944: // name already has ':', stop before next
945: switch(c) {
946: case ':':
947: pop_LS(PC);
948: PC.source--; if(--PC.col<0) { PC.line--; PC.col=-1; }
949: result=EON;
950: goto break2;
951: }
952: }
1.48 paf 953: switch(c) {
954: case 0:
955: case ' ': case '\t': case '\n':
956: case ';':
1.126 paf 957: case ']': case '}': case ')':
958: case '"': case '\'':
1.139 parser 959: case '<': case '>': // these stand for HTML brackets AND expression binary ops
1.92 paf 960: case '+': case '*': case '/': case '%':
961: case '&': case '|':
962: case '=': case '!':
1.99 paf 963: // common delimiters
1.158 parser 964: case ',': case '?':
1.139 parser 965: // before call
966: case '^':
1.1 paf 967: pop_LS(PC);
1.114 paf 968: PC.source--; if(--PC.col<0) { PC.line--; PC.col=-1; }
1.13 paf 969: result=EON;
1.1 paf 970: goto break2;
1.48 paf 971: case '[':
1.162 parser 972: // $name.<[>code]
973: if(PC.col>1/*not first column*/ && (
1.163 parser 974: end[-1]=='$'/*was start of get*/ ||
975: end[-1]==':'/*was class name delim */ ||
976: end[-1]=='.'/*was name delim */
1.162 parser 977: )) {
1.166 parser 978: push_LS(PC, LS_NAME_SQUARE_PART);
1.162 parser 979: lexical_brackets_nestage=1;
980: RC;
981: }
1.114 paf 982: PC.ls=LS_VAR_SQUARE;
1.1 paf 983: lexical_brackets_nestage=1;
1.48 paf 984: RC;
985: case '{':
986: if(begin==end) { // ${name}, no need of EON, switching LS
1.114 paf 987: PC.ls=LS_VAR_NAME_CURLY;
1.48 paf 988: } else {
1.114 paf 989: PC.ls=LS_VAR_CURLY;
1.48 paf 990: lexical_brackets_nestage=1;
991: }
1.69 paf 992:
1.48 paf 993: RC;
994: case '(':
1.114 paf 995: PC.ls=LS_VAR_ROUND;
1.1 paf 996: lexical_brackets_nestage=1;
1.48 paf 997: RC;
998: case '.': // name part delim
999: case '$': // name part subvar
1.160 parser 1000: case ':': // class<:>name
1.166 parser 1001: // go to _WITHOUT_COLON state variant...
1002: if(PC.ls==LS_VAR_NAME_SIMPLE_WITH_COLON)
1003: PC.ls=LS_VAR_NAME_SIMPLE_WITHOUT_COLON;
1004: else if(PC.ls==LS_EXPRESSION_VAR_NAME_WITH_COLON)
1005: PC.ls=LS_EXPRESSION_VAR_NAME_WITHOUT_COLON;
1006: // ...stop before next ':'
1.48 paf 1007: RC;
1.1 paf 1008: }
1009: break;
1.48 paf 1010:
1.1 paf 1011: case LS_VAR_NAME_CURLY:
1.48 paf 1012: switch(c) {
1.162 parser 1013: case '[':
1.166 parser 1014: // ${name.<[>code]}
1015: push_LS(PC, LS_NAME_SQUARE_PART);
1.160 parser 1016: lexical_brackets_nestage=1;
1017: RC;
1.48 paf 1018: case '}': // ${name} finished, restoring LS
1.1 paf 1019: pop_LS(PC);
1.48 paf 1020: RC;
1021: case '.': // name part delim
1022: case '$': // name part subvar
1023: case ':': // ':name' or 'class:name'
1024: RC;
1.1 paf 1025: }
1026: break;
1.48 paf 1027:
1028: case LS_VAR_SQUARE:
1029: switch(c) {
1030: case '$':
1.166 parser 1031: push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1032: RC;
1033: case '^':
1.10 paf 1034: push_LS(PC, LS_METHOD_NAME);
1.48 paf 1035: RC;
1036: case ']':
1.1 paf 1037: if(--lexical_brackets_nestage==0) {
1038: pop_LS(PC);
1.48 paf 1039: RC;
1.1 paf 1040: }
1.48 paf 1041: break;
1042: case ';': // operator_or_fmt;value delim
1043: RC;
1044: case '[':
1045: lexical_brackets_nestage++;
1046: break;
1.1 paf 1047: }
1048: break;
1.48 paf 1049:
1.1 paf 1050: case LS_VAR_CURLY:
1.48 paf 1051: switch(c) {
1052: case '$':
1.166 parser 1053: push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1054: RC;
1055: case '^':
1.10 paf 1056: push_LS(PC, LS_METHOD_NAME);
1.48 paf 1057: RC;
1058: case '}':
1.1 paf 1059: if(--lexical_brackets_nestage==0) {
1060: pop_LS(PC);
1.48 paf 1061: RC;
1.1 paf 1062: }
1.48 paf 1063: break;
1064: case '{':
1.1 paf 1065: lexical_brackets_nestage++;
1.48 paf 1066: break;
1067: }
1.1 paf 1068: break;
1069:
1.10 paf 1070: // METHOD CALL
1.1 paf 1071: case LS_METHOD_NAME:
1.48 paf 1072: switch(c) {
1073: case '[':
1.166 parser 1074: // ^name.<[>code].xxx
1.162 parser 1075: if(PC.col>1/*not first column*/ && (
1.163 parser 1076: end[-1]=='^'/*was start of call*/ || // never, ^[ is literal...
1077: end[-1]==':'/*was class name delim */ ||
1078: end[-1]=='.'/*was name delim */
1.162 parser 1079: )) {
1.166 parser 1080: push_LS(PC, LS_NAME_SQUARE_PART);
1.162 parser 1081: lexical_brackets_nestage=1;
1082: RC;
1083: }
1.114 paf 1084: PC.ls=LS_METHOD_SQUARE;
1.1 paf 1085: lexical_brackets_nestage=1;
1.48 paf 1086: RC;
1087: case '{':
1.114 paf 1088: PC.ls=LS_METHOD_CURLY;
1.1 paf 1089: lexical_brackets_nestage=1;
1.48 paf 1090: RC;
1.69 paf 1091: case '(':
1.114 paf 1092: PC.ls=LS_METHOD_ROUND;
1.69 paf 1093: lexical_brackets_nestage=1;
1094: RC;
1.48 paf 1095: case '.': // name part delim
1096: case '$': // name part subvar
1097: case ':': // ':name' or 'class:name'
1.170 parser 1098: case '^': // ^abc^xxx wrong. bailing out
1099: case ']': case '}': case ')': // ^abc]}) wrong. bailing out
1.48 paf 1100: RC;
1.1 paf 1101: }
1102: break;
1.48 paf 1103:
1104: case LS_METHOD_SQUARE:
1105: switch(c) {
1106: case '$':
1.166 parser 1107: push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1108: RC;
1109: case '^':
1.10 paf 1110: push_LS(PC, LS_METHOD_NAME);
1.48 paf 1111: RC;
1112: case ';': // param delim
1113: RC;
1114: case ']':
1.1 paf 1115: if(--lexical_brackets_nestage==0) {
1.114 paf 1116: PC.ls=LS_METHOD_AFTER;
1.48 paf 1117: RC;
1.1 paf 1118: }
1.48 paf 1119: break;
1120: case '[':
1.1 paf 1121: lexical_brackets_nestage++;
1.48 paf 1122: break;
1123: }
1.1 paf 1124: break;
1.48 paf 1125:
1.1 paf 1126: case LS_METHOD_CURLY:
1.48 paf 1127: switch(c) {
1128: case '$':
1.166 parser 1129: push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1130: RC;
1131: case '^':
1.10 paf 1132: push_LS(PC, LS_METHOD_NAME);
1.94 paf 1133: RC;
1134: case ';': // param delim
1.48 paf 1135: RC;
1136: case '}':
1.1 paf 1137: if(--lexical_brackets_nestage==0) {
1.114 paf 1138: PC.ls=LS_METHOD_AFTER;
1.48 paf 1139: RC;
1.1 paf 1140: }
1.48 paf 1141: break;
1142: case '{':
1.1 paf 1143: lexical_brackets_nestage++;
1.48 paf 1144: break;
1145: }
1.1 paf 1146: break;
1.48 paf 1147:
1.1 paf 1148: case LS_METHOD_AFTER:
1.69 paf 1149: if(c=='[') {/* ][ }[ )[ */
1.114 paf 1150: PC.ls=LS_METHOD_SQUARE;
1.1 paf 1151: lexical_brackets_nestage=1;
1.48 paf 1152: RC;
1.1 paf 1153: }
1.69 paf 1154: if(c=='{') {/* ]{ }{ ){ */
1.114 paf 1155: PC.ls=LS_METHOD_CURLY;
1.69 paf 1156: lexical_brackets_nestage=1;
1157: RC;
1158: }
1159: if(c=='(') {/* ]( }( )( */
1.114 paf 1160: PC.ls=LS_METHOD_ROUND;
1.1 paf 1161: lexical_brackets_nestage=1;
1.48 paf 1162: RC;
1.1 paf 1163: }
1164: pop_LS(PC);
1.114 paf 1165: PC.source--; if(--PC.col<0) { PC.line--; PC.col=-1; }
1.13 paf 1166: result=EON;
1.1 paf 1167: goto break2;
1168: }
1.9 paf 1169: if(c==0) {
1.1 paf 1170: result=-1;
1171: break;
1172: }
1173: }
1174:
1175: break2:
1.59 paf 1176: if(end!=begin) { // there is last piece?
1177: if((c=='@' || c==0) && end[-1]=='\n') { // we are before LS_DEF_NAME or EOF?
1178: // strip last \n
1.10 paf 1179: end--;
1.137 parser 1180: if(end!=begin && end[-1]=='\n') // allow one empty line before LS_DEF_NAME
1181: end--;
1.59 paf 1182: }
1.133 parser 1183: if(end!=begin && PC.ls!=LS_COMMENT) { // last piece still alive and not comment?
1.59 paf 1184: // append it
1.121 paf 1185: PC.string->APPEND_CLEAN(begin, end-begin, PC.file, begin_line/*, start_col*/);
1.30 paf 1186: }
1.59 paf 1187: }
1.114 paf 1188: if(PC.string->size()) { // something accumulated?
1.17 paf 1189: // create STRING value: array of OP_VALUE+vstring
1.114 paf 1190: *lvalp=VL(NEW VString(*PC.string));
1.10 paf 1191: // new pieces storage
1.114 paf 1192: PC.string=NEW String(POOL);
1.58 paf 1193: // make current result be pending for next call, return STRING for now
1.114 paf 1194: PC.pending_state=result; result=STRING;
1.58 paf 1195: }
1.67 paf 1196: if(skip_analized) {
1.114 paf 1197: PC.source+=skip_analized; PC.col+=skip_analized;
1.1 paf 1198: }
1.58 paf 1199: return result;
1.1 paf 1200: }
1201:
1.110 paf 1202: static int real_yyerror(parse_control *pc, char *s) { // Called by yyparse on error
1.114 paf 1203: strncpy(PC.error, s, MAX_STRING);
1.1 paf 1204: return 1;
1.110 paf 1205: }
1.1 paf 1206:
1.110 paf 1207: static void yyprint(FILE *file, int type, YYSTYPE value) {
1208: if(type==STRING)
1.120 paf 1209: fprintf(file, " \"%s\"", LA2S(value)->cstr());
1.110 paf 1210: }
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