Annotation of parser3/src/main/compile.y, revision 1.170
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:
1.170 ! parser 8: $Id: compile.y,v 1.169 2001/10/05 10:06:28 parser 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
1.58 paf 62:
1.59 paf 63: %token LAND "&&"
1.58 paf 64: %token LOR "||"
1.59 paf 65: %token LXOR "##"
1.58 paf 66:
67: %token NLE "<="
68: %token NGE ">="
69: %token NEQ "=="
70: %token NNE "!="
71:
72: %token SLT "lt"
73: %token SGT "gt"
74: %token SLE "le"
75: %token SGE "ge"
76: %token SEQ "eq"
77: %token SNE "ne"
78:
1.67 paf 79: %token DEF "def"
80: %token IN "in"
81: %token FEXISTS "-f"
1.127 paf 82: %token DEXISTS "-d"
1.95 paf 83: %token IS "is"
1.67 paf 84:
1.57 paf 85: /* logical */
1.131 paf 86: %left "##"
1.57 paf 87: %left "||"
88: %left "&&"
1.131 paf 89: %left '<' '>' "<=" ">=" "lt" "gt" "le" "ge"
90: %left "==" "!=" "eq" "ne"
91: %left "is" "def" "in" "-f" "-d"
1.68 paf 92: %left '!'
1.57 paf 93:
94: /* bitwise */
1.59 paf 95: %left '#'
1.131 paf 96: %left '|'
97: %left '&'
1.68 paf 98: %left '~'
1.57 paf 99:
1.56 paf 100: /* numerical */
1.55 paf 101: %left '-' '+'
1.57 paf 102: %left '*' '/' '%'
1.56 paf 103: %left NEG /* negation: unary - */
1.1 paf 104:
105: %%
1.152 parser 106: all:
1.10 paf 107: one_big_piece {
1.75 paf 108: Method& method=*NEW Method(POOL,
1.85 paf 109: *main_method_name,
1.122 paf 110: Method::CT_ANY,
1.81 paf 111: 0, 0, /*min, max numbered_params_count*/
1.75 paf 112: 0/*param_names*/, 0/*local_names*/,
113: $1/*parser_code*/, 0/*native_code*/);
1.114 paf 114: PC.cclass->add_method(*main_method_name, method);
1.10 paf 115: }
116: | methods;
117:
118: methods: method | methods method;
119: one_big_piece: maybe_codes;
120:
1.34 paf 121: method: control_method | code_method;
122:
123: control_method: '@' STRING '\n'
1.132 paf 124: maybe_control_strings {
1.120 paf 125: const String& command=*LA2S($2);
1.34 paf 126: YYSTYPE strings_code=$4;
1.37 paf 127: if(strings_code->size()<1*2) {
1.114 paf 128: strcpy(PC.error, "@");
129: strcat(PC.error, command.cstr());
130: strcat(PC.error, " is empty");
1.37 paf 131: YYERROR;
132: }
1.74 paf 133: if(command==CLASS_NAME) {
1.146 parser 134: if(PC.cclass->base()) { // already changed from default?
1.114 paf 135: strcpy(PC.error, "class already have a name '");
136: strncat(PC.error, PC.cclass->name().cstr(), 100);
137: strcat(PC.error, "'");
1.73 paf 138: YYERROR;
139: }
140: if(strings_code->size()==1*2) {
141: // new class' name
1.120 paf 142: const String *name=LA2S(strings_code);
1.73 paf 143: // creating the class
1.114 paf 144: PC.cclass=NEW VClass(POOL);
145: PC.cclass->set_name(*name);
1.73 paf 146: // append to request's classes
1.114 paf 147: PC.request->classes().put(*name, PC.cclass);
1.73 paf 148: } else {
1.114 paf 149: strcpy(PC.error, "@"CLASS_NAME" must contain sole name");
1.34 paf 150: YYERROR;
151: }
1.130 paf 152: } else if(command==USE_CONTROL_METHOD_NAME) {
153: for(int i=0; i<strings_code->size(); i+=2)
1.159 parser 154: PC.request->use_file(*LA2S(strings_code, i));
1.130 paf 155: } else if(command==BASE_NAME) {
1.146 parser 156: if(PC.cclass->base()) { // already changed from default?
1.130 paf 157: strcpy(PC.error, "class already have a base '");
158: strncat(PC.error, PC.cclass->base()->name().cstr(), 100);
159: strcat(PC.error, "'");
160: YYERROR;
161: }
162: if(strings_code->size()==1*2) {
163: const String& base_name=*LA2S(strings_code);
164: VClass *base=static_cast<VClass *>(
165: PC.request->classes().get(base_name));
166: if(!base) {
167: strcpy(PC.error, base_name.cstr());
168: strcat(PC.error, ": undefined class in @"BASE_NAME);
1.73 paf 169: YYERROR;
170: }
1.130 paf 171: // @CLASS == @BASE sanity check
172: if(PC.cclass==base) {
173: strcpy(PC.error, "@"CLASS_NAME" equals @"BASE_NAME);
1.45 paf 174: YYERROR;
1.34 paf 175: }
1.130 paf 176: PC.cclass->set_base(*base);
1.34 paf 177: } else {
1.130 paf 178: strcpy(PC.error, "@"BASE_NAME" must contain sole name");
1.34 paf 179: YYERROR;
180: }
1.130 paf 181: } else {
182: strcpy(PC.error, "'");
183: strncat(PC.error, command.cstr(), MAX_STRING/2);
184: strcat(PC.error, "' invalid special name. valid names are "
185: "'"CLASS_NAME"', '"USE_CONTROL_METHOD_NAME"' and '"BASE_NAME"'");
186: YYERROR;
1.34 paf 187: }
188: };
1.132 paf 189: maybe_control_strings: empty | control_strings;
1.37 paf 190: control_strings: control_string | control_strings control_string { $$=$1; P($$, $2) };
191: control_string: maybe_string '\n';
192: maybe_string: empty | STRING;
1.34 paf 193:
194: code_method: '@' STRING bracketed_maybe_strings maybe_bracketed_strings maybe_comment '\n'
1.10 paf 195: maybe_codes {
1.120 paf 196: const String *name=LA2S($2);
1.10 paf 197:
198: YYSTYPE params_names_code=$3;
1.75 paf 199: Array *params_names=0;
200: if(int size=params_names_code->size()) {
201: params_names=NEW Array(POOL);
202: for(int i=0; i<size; i+=2)
1.120 paf 203: *params_names+=LA2S(params_names_code, i);
1.75 paf 204: }
1.10 paf 205:
206: YYSTYPE locals_names_code=$4;
1.75 paf 207: Array *locals_names=0;
208: if(int size=locals_names_code->size()) {
209: locals_names=NEW Array(POOL);
210: for(int i=0; i<size; i+=2)
1.120 paf 211: *locals_names+=LA2S(locals_names_code, i);
1.75 paf 212: }
1.10 paf 213:
1.76 paf 214: Method& method=*NEW Method(POOL,
215: *name,
1.122 paf 216: Method::CT_ANY,
1.81 paf 217: 0, 0/*min,max numbered_params_count*/,
1.76 paf 218: params_names, locals_names,
219: $7, 0);
1.114 paf 220: PC.cclass->add_method(*name, method);
1.8 paf 221: };
1.10 paf 222:
223: maybe_bracketed_strings: empty | bracketed_maybe_strings;
224: bracketed_maybe_strings: '[' maybe_strings ']' {$$=$2};
225: maybe_strings: empty | strings;
226: strings: STRING | strings ';' STRING { $$=$1; P($$, $3) };
227:
228: maybe_comment: empty | STRING;
1.1 paf 229:
230: /* codes */
231:
1.10 paf 232: maybe_codes: empty | codes;
233:
1.90 paf 234: codes: code | codes code { $$=$1; P($$, $2) };
1.81 paf 235: code: write_string | action;
1.149 parser 236: action: get | put | call;
1.1 paf 237:
238: /* get */
239:
1.64 paf 240: get: get_value {
241: $$=$1; /* stack: resulting value */
1.102 paf 242: O($$, OP_WRITE_VALUE); /* value=pop; wcontext.write(value) */
1.1 paf 243: };
1.163 parser 244: get_value: '$' get_name_value { $$=$2 };
1.64 paf 245: get_name_value: name_without_curly_rdive EON | name_in_curly_rdive;
1.1 paf 246: name_in_curly_rdive: '{' name_without_curly_rdive '}' { $$=$2 };
1.44 paf 247: name_without_curly_rdive:
248: name_without_curly_rdive_read
249: | name_without_curly_rdive_class;
1.19 paf 250: name_without_curly_rdive_read: name_without_curly_rdive_code {
1.25 paf 251: $$=N(POOL);
1.22 paf 252: Array *diving_code=$1;
1.120 paf 253: const String *first_name=LA2S(diving_code);
1.85 paf 254: if(first_name && *first_name==SELF_ELEMENT_NAME) {
1.54 paf 255: O($$, OP_WITH_SELF); /* stack: starting context */
1.22 paf 256: P($$, diving_code,
257: /* skip over... */
258: diving_code->size()>2?3/*OP_+string+get_element*/:2/*OP_+string*/);
259: } else {
1.54 paf 260: O($$, OP_WITH_READ); /* stack: starting context */
1.22 paf 261: P($$, diving_code);
262: }
263: /* diving code; stack: current context */
1.1 paf 264: };
1.155 parser 265: name_without_curly_rdive_class: class_prefix name_without_curly_rdive_code { $$=$1; P($$, $2) };
1.19 paf 266: name_without_curly_rdive_code: name_advance2 | name_path name_advance2 { $$=$1; P($$, $2) };
1.1 paf 267:
268: /* put */
269:
1.81 paf 270: put: '$' name_expr_wdive construct {
1.20 paf 271: $$=$2; /* stack: context,name */
1.52 paf 272: P($$, $3); /* stack: context,name,constructor_value */
1.20 paf 273: };
1.44 paf 274: name_expr_wdive:
1.157 parser 275: name_expr_wdive_root
276: | name_expr_wdive_write
1.44 paf 277: | name_expr_wdive_class;
1.157 parser 278: name_expr_wdive_root: name_expr_dive_code {
1.44 paf 279: $$=N(POOL);
1.23 paf 280: Array *diving_code=$1;
1.120 paf 281: const String *first_name=LA2S(diving_code);
1.85 paf 282: if(first_name && *first_name==SELF_ELEMENT_NAME) {
1.54 paf 283: O($$, OP_WITH_SELF); /* stack: starting context */
1.23 paf 284: P($$, diving_code,
285: /* skip over... */
286: diving_code->size()>2?3/*OP_+string+get_element*/:2/*OP_+string*/);
287: } else {
1.157 parser 288: O($$, OP_WITH_ROOT); /* stack: starting context */
1.23 paf 289: P($$, diving_code);
290: }
291: /* diving code; stack: current context */
1.156 parser 292: };
1.157 parser 293: name_expr_wdive_write: '.' name_expr_dive_code {
1.156 parser 294: $$=N(POOL);
1.157 parser 295: O($$, OP_WITH_WRITE); /* stack: starting context */
1.156 parser 296: P($$, $2); /* diving code; stack: context,name */
1.20 paf 297: };
1.155 parser 298: name_expr_wdive_class: class_prefix name_expr_dive_code { $$=$1; P($$, $2) };
1.20 paf 299:
1.149 parser 300: construct:
1.163 parser 301: construct_square
302: | construct_round
303: | construct_curly
1.149 parser 304: ;
305: construct_square: '[' any_constructor_code_value ']' {
306: // stack: context, name
307: $$=$2; // stack: context, name, value
1.81 paf 308: O($$, OP_CONSTRUCT_VALUE); /* value=pop; name=pop; context=pop; construct(context,name,value) */
309: }
310: ;
1.149 parser 311: construct_round: '(' expr_value ')' {
312: // stack: context, name
313: $$=$2; // stack: context, name, value
1.163 parser 314: O($$, OP_CONSTRUCT_EXPR); /* value=pop->as_expr_result; name=pop; context=pop; construct(context,name,value) */
1.81 paf 315: }
1.52 paf 316: ;
1.149 parser 317: construct_curly: '{' maybe_codes '}' {
318: // stack: context, name
319: $$=N(POOL);
320: CCA($$, $2); /* code=pop; name=pop; context=pop; construct(context,name,junction(code)) */
321: };
322:
1.55 paf 323: any_constructor_code_value:
1.157 parser 324: void_value /* optimized $var[] case */
1.52 paf 325: | STRING /* optimized $var[STRING] case */
1.55 paf 326: | constructor_code_value /* $var[something complex] */
1.1 paf 327: ;
1.55 paf 328: constructor_code_value: constructor_code {
1.25 paf 329: $$=N(POOL);
1.54 paf 330: O($$, OP_CREATE_EWPOOL); /* stack: empty write context */
1.69 paf 331: P($$, $1); /* some code that writes to that context */
1.54 paf 332: O($$, OP_REDUCE_EWPOOL); /* context=pop; stack: context.value() */
1.1 paf 333: };
1.55 paf 334: constructor_code: codes__excluding_sole_str_literal;
1.27 paf 335: codes__excluding_sole_str_literal: action | code codes { $$=$1; P($$, $2) };
336:
1.1 paf 337: /* call */
338:
1.66 paf 339: call: call_value {
340: $$=$1; /* stack: value */
1.102 paf 341: O($$, OP_WRITE_VALUE); /* value=pop; wcontext.write(value) */
1.66 paf 342: };
1.154 parser 343: call_value: '^' { PC.object_constructor_allowed=true }
344: call_name { PC.object_constructor_allowed=false }
345: store_params EON { /* ^field.$method{vasya} */
346: $$=$3; /* with_xxx,diving code; stack: context,method_junction */
1.54 paf 347: O($$, OP_GET_METHOD_FRAME); /* stack: context,method_frame */
1.123 paf 348:
1.154 parser 349: YYSTYPE params_code=$5;
1.140 parser 350: if(params_code->size()==3) // probably [] case. [OP_VALUE + Void + STORE_PARAM]
1.123 paf 351: if(Value *value=LA2V(params_code)) // it is OP_VALUE + value?
1.140 parser 352: if(!value->is_defined()) // value is VVoid?
1.123 paf 353: params_code=0; // ^zzz[] case. don't append lone empty param.
354: if(params_code)
355: P($$, params_code); // filling method_frame.store_params
1.155 parser 356: O($$, OP_CALL); // method_frame=pop; ncontext=pop; call(ncontext,method_frame) stack: value
1.1 paf 357: };
358:
1.43 paf 359: call_name: name_without_curly_rdive;
1.38 paf 360:
1.9 paf 361: store_params: store_param | store_params store_param { $$=$1; P($$, $2) };
1.69 paf 362: store_param:
363: store_square_param
364: | store_round_param
365: | store_curly_param
1.31 paf 366: ;
1.123 paf 367: store_square_param: '[' store_code_param_parts ']' {$$=$2};
1.69 paf 368: store_round_param: '(' store_expr_param_parts ')' {$$=$2};
1.94 paf 369: store_curly_param: '{' store_curly_param_parts '}' {$$=$2};
1.69 paf 370: store_code_param_parts:
371: store_code_param_part
372: | store_code_param_parts ';' store_code_param_part { $$=$1; P($$, $3) }
373: ;
374: store_expr_param_parts:
375: store_expr_param_part
376: | store_expr_param_parts ';' store_expr_param_part { $$=$1; P($$, $3) }
377: ;
1.94 paf 378: store_curly_param_parts:
379: store_curly_param_part
380: | store_curly_param_parts ';' store_curly_param_part { $$=$1; P($$, $3) }
381: ;
1.120 paf 382: store_code_param_part: code_param_value {
1.32 paf 383: $$=$1;
1.54 paf 384: O($$, OP_STORE_PARAM);
1.120 paf 385: };
1.69 paf 386: store_expr_param_part: write_expr_value {
387: $$=N(POOL);
1.103 paf 388: PEA($$, $1);
1.69 paf 389: };
1.94 paf 390: store_curly_param_part: maybe_codes {
391: $$=N(POOL);
392: PCA($$, $1);
393: };
1.120 paf 394: code_param_value:
1.157 parser 395: void_value /* optimized [;...] case */
1.120 paf 396: | STRING /* optimized [STRING] case */
397: | constructor_code_value /* [something complex] */
398: ;
1.90 paf 399: write_expr_value: expr_value {
1.69 paf 400: $$=$1;
1.102 paf 401: O($$, OP_WRITE_EXPR_RESULT);
1.69 paf 402: };
1.1 paf 403:
404: /* name */
405:
1.20 paf 406: name_expr_dive_code: name_expr_value | name_path name_expr_value { $$=$1; P($$, $2) };
1.1 paf 407:
1.9 paf 408: name_path: name_step | name_path name_step { $$=$1; P($$, $2) };
1.1 paf 409: name_step: name_advance1 '.';
410: name_advance1: name_expr_value {
411: /* stack: context */
412: $$=$1; /* stack: context,name */
1.54 paf 413: O($$, OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */
1.1 paf 414: };
415: name_advance2: name_expr_value {
416: /* stack: context */
417: $$=$1; /* stack: context,name */
1.54 paf 418: O($$, OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */
1.1 paf 419: }
1.4 paf 420: | STRING BOGUS
1.1 paf 421: ;
422: name_expr_value:
1.4 paf 423: STRING /* subname_is_const */
1.1 paf 424: | name_expr_subvar_value /* $subname_is_var_value */
1.160 parser 425: | name_expr_with_subvar_value /* xxx$part_of_subname_is_var_value */
1.166 parser 426: | name_square_code_value /* [codes] */
1.1 paf 427: ;
428: name_expr_subvar_value: '$' subvar_ref_name_rdive {
429: $$=$2;
1.54 paf 430: O($$, OP_GET_ELEMENT);
1.1 paf 431: };
1.4 paf 432: name_expr_with_subvar_value: STRING subvar_get_writes {
1.25 paf 433: $$=N(POOL);
1.54 paf 434: O($$, OP_CREATE_EWPOOL);
1.9 paf 435: P($$, $1);
1.102 paf 436: O($$, OP_WRITE_VALUE);
1.9 paf 437: P($$, $2);
1.54 paf 438: O($$, OP_REDUCE_EWPOOL);
1.1 paf 439: };
1.166 parser 440: name_square_code_value: '[' codes ']' {
1.160 parser 441: $$=N(POOL);
442: O($$, OP_CREATE_EWPOOL);
443: P($$, $2);
444: O($$, OP_REDUCE_EWPOOL);
445: };
1.154 parser 446: subvar_ref_name_rdive: STRING {
1.25 paf 447: $$=N(POOL);
1.54 paf 448: O($$, OP_WITH_READ);
1.9 paf 449: P($$, $1);
1.1 paf 450: };
1.9 paf 451: subvar_get_writes: subvar__get_write | subvar_get_writes subvar__get_write { $$=$1; P($$, $2) };
1.1 paf 452: subvar__get_write: '$' subvar_ref_name_rdive {
453: $$=$2;
1.54 paf 454: O($$, OP_GET_ELEMENT__WRITE);
1.42 paf 455: };
456:
1.154 parser 457: class_prefix:
458: class_static_prefix
459: | class_constructor_prefix
460: ;
1.155 parser 461: class_static_prefix: STRING ':' {
462: $$=$1; // stack: class name string
463: O($$, OP_GET_CLASS);
464: };
465: class_constructor_prefix: class_static_prefix ':' {
1.154 parser 466: $$=$1;
467: if(!PC.object_constructor_allowed) {
468: strcpy(PC.error, ":: not allowed here");
469: YYERROR;
470: }
1.155 parser 471: O($$, OP_PREPARE_TO_CONSTRUCT_OBJECT);
1.1 paf 472: };
473:
1.53 paf 474:
1.56 paf 475: /* expr */
1.53 paf 476:
1.81 paf 477: expr_value: expr {
478: if(($$=$1)->size()==2) // only one string literal in there?
1.62 paf 479: change_string_literal_to_double_literal($$); // make that string literal Double
480: };
1.56 paf 481: expr:
1.62 paf 482: STRING
1.64 paf 483: | get_value
1.66 paf 484: | call_value
1.64 paf 485: | '"' string_inside_quotes_value '"' { $$ = $2; }
1.145 parser 486: | '\'' string_inside_quotes_value '\'' { $$ = $2; }
1.60 paf 487: | '(' expr ')' { $$ = $2; }
488: /* stack: operand // stack: @operand */
489: | '-' expr %prec NEG { $$=$2; O($$, OP_NEG) }
1.166 parser 490: | '+' expr %prec NEG { $$=$2 }
1.68 paf 491: | '~' expr { $$=$2; O($$, OP_INV) }
492: | '!' expr { $$=$2; O($$, OP_NOT) }
493: | "def" expr { $$=$2; O($$, OP_DEF) }
494: | "in" expr { $$=$2; O($$, OP_IN) }
495: | "-f" expr { $$=$2; O($$, OP_FEXISTS) }
1.127 paf 496: | "-d" expr { $$=$2; O($$, OP_DEXISTS) }
1.60 paf 497: /* stack: a,b // stack: a@b */
498: | expr '-' expr { $$=$1; P($$, $3); O($$, OP_SUB) }
499: | expr '+' expr { $$=$1; P($$, $3); O($$, OP_ADD) }
500: | expr '*' expr { $$=$1; P($$, $3); O($$, OP_MUL) }
501: | expr '/' expr { $$=$1; P($$, $3); O($$, OP_DIV) }
502: | expr '%' expr { $$=$1; P($$, $3); O($$, OP_MOD) }
503: | expr '&' expr { $$=$1; P($$, $3); O($$, OP_BIN_AND) }
504: | expr '|' expr { $$=$1; P($$, $3); O($$, OP_BIN_OR) }
505: | expr '#' expr { $$=$1; P($$, $3); O($$, OP_BIN_XOR) }
506: | expr "&&" expr { $$=$1; P($$, $3); O($$, OP_LOG_AND) }
507: | expr "||" expr { $$=$1; P($$, $3); O($$, OP_LOG_OR) }
508: | expr "##" expr { $$=$1; P($$, $3); O($$, OP_LOG_XOR) }
509: | expr '<' expr { $$=$1; P($$, $3); O($$, OP_NUM_LT) }
510: | expr '>' expr { $$=$1; P($$, $3); O($$, OP_NUM_GT) }
511: | expr "<=" expr { $$=$1; P($$, $3); O($$, OP_NUM_LE) }
512: | expr ">=" expr { $$=$1; P($$, $3); O($$, OP_NUM_GE) }
513: | expr "==" expr { $$=$1; P($$, $3); O($$, OP_NUM_EQ) }
514: | expr "!=" expr { $$=$1; P($$, $3); O($$, OP_NUM_NE) }
1.61 paf 515: | expr "lt" expr { $$=$1; P($$, $3); O($$, OP_STR_LT) }
516: | expr "gt" expr { $$=$1; P($$, $3); O($$, OP_STR_GT) }
517: | expr "le" expr { $$=$1; P($$, $3); O($$, OP_STR_LE) }
518: | expr "ge" expr { $$=$1; P($$, $3); O($$, OP_STR_GE) }
519: | expr "eq" expr { $$=$1; P($$, $3); O($$, OP_STR_EQ) }
520: | expr "ne" expr { $$=$1; P($$, $3); O($$, OP_STR_NE) }
1.95 paf 521: | expr "is" expr { $$=$1; P($$, $3); O($$, OP_IS) }
1.56 paf 522: ;
1.55 paf 523:
1.65 paf 524: string_inside_quotes_value: maybe_codes {
1.64 paf 525: $$=N(POOL);
526: O($$, OP_CREATE_SWPOOL); /* stack: empty write context */
1.69 paf 527: P($$, $1); /* some code that writes to that context */
1.64 paf 528: O($$, OP_REDUCE_SWPOOL); /* context=pop; stack: context.get_string() */
1.53 paf 529: };
1.1 paf 530:
1.27 paf 531: /* basics */
1.1 paf 532:
1.81 paf 533: write_string: STRING {
1.102 paf 534: // optimized from OP_STRING+OP_WRITE_VALUE to OP_STRING__WRITE
1.84 paf 535: change_string_literal_to_write_string_literal($$=$1)
1.54 paf 536: };
537:
1.157 parser 538: void_value: /* empty */ { $$=VL(NEW VVoid(POOL)) };
1.25 paf 539: empty: /* empty */ { $$=N(POOL) };
1.1 paf 540:
541: %%
1.105 paf 542: #endif
1.1 paf 543:
544: /*
545: 000$111(2222)00
546: 000$111{3333}00
1.9 paf 547: $,^: push,=0
1.1 paf 548: 1:( { break=pop
549: 2:( ) pop
550: 3:{ } pop
551:
552: 000^111(2222)4444{33333}4000
1.9 paf 553: $,^: push,=0
1.1 paf 554: 1:( { break=pop
555: 2:( )=4
556: 3:{ }=4
557: 4:[^({]=pop
558: */
559:
1.110 paf 560: static int yylex(YYSTYPE *lvalp, void *pc) {
1.114 paf 561: #define lexical_brackets_nestage PC.brackets_nestages[PC.sp]
1.48 paf 562: #define RC {result=c; goto break2; }
1.1 paf 563:
564: register int c;
565: int result;
566:
1.114 paf 567: if(PC.pending_state) {
568: result=PC.pending_state;
569: PC.pending_state=0;
1.1 paf 570: return result;
571: }
572:
1.114 paf 573: const char *begin=PC.source;
1.91 paf 574: const char *end;
1.114 paf 575: int begin_line=PC.line;
1.67 paf 576: int skip_analized=0;
1.50 paf 577: while(true) {
1.114 paf 578: c=*(end=(PC.source++));
1.166 parser 579: // fprintf(stderr, "\nchar: %c %02X; nestage: %d, sp=%d", c, c, lexical_brackets_nestage, PC.sp);
1.1 paf 580:
1.4 paf 581: if(c=='\n') {
1.114 paf 582: PC.line++;
583: PC.col=0;
1.10 paf 584: } else
1.114 paf 585: PC.col++;
1.73 paf 586:
1.169 parser 587: if(c=='^')
588: switch(PC.ls) {
589: case LS_EXPRESSION_VAR_NAME_WITH_COLON:
590: case LS_EXPRESSION_VAR_NAME_WITHOUT_COLON:
591: case LS_VAR_NAME_SIMPLE_WITH_COLON:
592: case LS_VAR_NAME_SIMPLE_WITHOUT_COLON:
593: case LS_VAR_NAME_CURLY:
594: case LS_METHOD_NAME:
595: case LS_COMMENT:
596: case LS_DEF_COMMENT:
597: // no literals in names, please
598: break;
599: default:
1.114 paf 600: switch(*PC.source) {
1.165 parser 601: // ^escaping some punctuators
1.48 paf 602: case '^': case '$': case ';':
1.126 paf 603: case '(': case ')':
1.48 paf 604: case '[': case ']':
605: case '{': case '}':
1.114 paf 606: case '"':
1.40 paf 607: if(end!=begin) {
608: // append piece till ^
1.121 paf 609: PC.string->APPEND_CLEAN(begin, end-begin, PC.file, begin_line);
1.40 paf 610: }
1.63 paf 611: // reset piece 'begin' position & line
1.164 parser 612: end=begin=PC.source; // ^
1.114 paf 613: begin_line=PC.line;
1.164 parser 614: if(PC.ls==LS_METHOD_AFTER) {
615: pop_LS(PC);
616: result=EON;
1.165 parser 617: skip_analized=-1; // return to ^ afterwards to assure it's literality
1.164 parser 618: goto break2;
619: } else {
620: // skip over _ after ^
621: PC.source++; PC.col++;
622: // skip analysis = forced literal
623: continue;
624: }
1.114 paf 625:
626: // converting ^#HH into char(hex(HH))
627: case '#':
628: if(end!=begin) {
629: // append piece till ^
1.121 paf 630: PC.string->APPEND_CLEAN(begin, end-begin, PC.file, begin_line);
1.114 paf 631: }
632: // #HH ?
633: if(PC.source[0]=='#' && PC.source[1] && PC.source[2]) {
634: char *hex=(char *)POOL.malloc(1);
635: hex[0]=
636: hex_value[(unsigned char)PC.source[1]]*0x10+
637: hex_value[(unsigned char)PC.source[2]];
638: if(hex[0]==0) {
639: result=BAD_HEX_LITERAL;
640: goto break2; // wrong hex value[no ^#00 chars allowed]: bail out
641: }
642: // append char(hex(HH))
1.121 paf 643: PC.string->APPEND_CLEAN(hex, 1, PC.file, begin_line);
1.114 paf 644: // skip over ^#HH
645: PC.source+=3;
646: PC.col+=3;
647: // reset piece 'begin' position & line
648: begin=PC.source; // ^
649: begin_line=PC.line;
650: continue;
651: }
652: break;
1.1 paf 653: }
1.169 parser 654: break;
655: }
1.113 paf 656: // #comment start skipping
1.114 paf 657: if(c=='#' && PC.col==1) {
1.112 paf 658: if(end!=begin) {
659: // append piece till #
1.121 paf 660: PC.string->APPEND_CLEAN(begin, end-begin, PC.file, begin_line);
1.112 paf 661: }
662: // fall into COMMENT lexical state [wait for \n]
663: push_LS(PC, LS_COMMENT);
664: }
1.114 paf 665: switch(PC.ls) {
1.10 paf 666:
667: // USER'S = NOT OURS
1.1 paf 668: case LS_USER:
1.166 parser 669: case LS_NAME_SQUARE_PART: // name.[here].xxx
1.153 parser 670: if(PC.trim_bof)
671: switch(c) {
672: case '\n': case ' ': case '\t':
1.152 parser 673: begin=PC.source;
674: begin_line=PC.line;
675: continue; // skip it
1.153 parser 676: default:
677: PC.trim_bof=false;
1.152 parser 678: }
1.48 paf 679: switch(c) {
680: case '$':
1.166 parser 681: push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 682: RC;
683: case '^':
684: push_LS(PC, LS_METHOD_NAME);
685: RC;
686: case '@':
1.114 paf 687: if(PC.col==0+1) {
1.48 paf 688: push_LS(PC, LS_DEF_NAME);
689: RC;
690: }
691: break;
1.166 parser 692: case ']':
693: if(PC.ls==LS_NAME_SQUARE_PART)
694: if(--lexical_brackets_nestage==0) {// $name.[co<]?>de<]?>
695: pop_LS(PC); // $name.[co<]>de<]!>
696: RC;
697: }
1.160 parser 698: break;
1.166 parser 699: case '[': // $name.[co<[>de]
700: if(PC.ls==LS_NAME_SQUARE_PART)
701: lexical_brackets_nestage++;
1.161 parser 702: break;
1.112 paf 703: }
704: break;
705:
706: // #COMMENT
707: case LS_COMMENT:
708: if(c=='\n') {
709: // skip comment
1.114 paf 710: begin=PC.source;
711: begin_line=PC.line;
1.112 paf 712:
713: pop_LS(PC);
714: continue;
1.1 paf 715: }
1.48 paf 716: break;
717:
718: // STRING IN EXPRESSION
1.145 parser 719: case LS_EXPRESSION_STRING_QUOTED:
720: case LS_EXPRESSION_STRING_APOSTROFED:
1.48 paf 721: switch(c) {
722: case '"':
1.145 parser 723: case '\'':
724: if(
725: PC.ls == LS_EXPRESSION_STRING_QUOTED && c=='"' ||
726: PC.ls == LS_EXPRESSION_STRING_APOSTROFED && c=='\'') {
727: pop_LS(PC); //"abc". | 'abc'.
728: RC;
729: }
730: break;
1.48 paf 731: case '$':
1.166 parser 732: push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 733: RC;
734: case '^':
1.10 paf 735: push_LS(PC, LS_METHOD_NAME);
1.48 paf 736: RC;
1.10 paf 737: }
738: break;
739:
740: // METHOD DEFINITION
741: case LS_DEF_NAME:
1.48 paf 742: switch(c) {
743: case '[':
1.114 paf 744: PC.ls=LS_DEF_PARAMS;
1.48 paf 745: RC;
746: case '\n':
1.114 paf 747: PC.ls=LS_DEF_SPECIAL_BODY;
1.48 paf 748: RC;
1.10 paf 749: }
750: break;
1.48 paf 751:
1.10 paf 752: case LS_DEF_PARAMS:
1.48 paf 753: switch(c) {
754: case ';':
755: RC;
756: case ']':
1.114 paf 757: PC.ls=*PC.source=='['?LS_DEF_LOCALS:LS_DEF_COMMENT;
1.48 paf 758: RC;
1.49 paf 759: case '\n': // wrong. bailing out
1.10 paf 760: pop_LS(PC);
1.48 paf 761: RC;
1.10 paf 762: }
763: break;
1.48 paf 764:
1.10 paf 765: case LS_DEF_LOCALS:
1.48 paf 766: switch(c) {
767: case '[':
768: case ';':
769: RC;
770: case ']':
1.114 paf 771: PC.ls=LS_DEF_COMMENT;
1.48 paf 772: RC;
773: case '\n': // wrong. bailing out
1.10 paf 774: pop_LS(PC);
1.48 paf 775: RC;
1.10 paf 776: }
777: break;
1.48 paf 778:
1.10 paf 779: case LS_DEF_COMMENT:
780: if(c=='\n') {
781: pop_LS(PC);
1.48 paf 782: RC;
1.37 paf 783: }
784: break;
785:
1.48 paf 786: case LS_DEF_SPECIAL_BODY:
1.147 parser 787: // @todo in case
788: // ################
789: // @next-method
790: // we are here with c=='@'
791: // which is wrong, and need action
1.37 paf 792: if(c=='\n') {
1.114 paf 793: switch(*PC.source) {
1.48 paf 794: case '@': case 0: // end of special_code
1.37 paf 795: pop_LS(PC);
1.48 paf 796: break;
797: }
798: RC;
799: }
800: break;
801:
802: // (EXPRESSION)
1.69 paf 803: case LS_VAR_ROUND:
804: case LS_METHOD_ROUND:
1.48 paf 805: switch(c) {
806: case ')':
807: if(--lexical_brackets_nestage==0)
1.114 paf 808: if(PC.ls==LS_METHOD_ROUND) // method round param ended
809: PC.ls=LS_METHOD_AFTER; // look for method end
810: else // PC.ls==LS_VAR_ROUND // variable constructor ended
1.69 paf 811: pop_LS(PC); // return to normal life
1.48 paf 812: RC;
813: case '$':
1.166 parser 814: push_LS(PC, LS_EXPRESSION_VAR_NAME_WITH_COLON);
1.48 paf 815: RC;
816: case '^':
817: push_LS(PC, LS_METHOD_NAME);
818: RC;
819: case '(':
820: lexical_brackets_nestage++;
821: RC;
1.67 paf 822: case '-':
1.127 paf 823: switch(*PC.source) {
824: case 'f': // -f
1.67 paf 825: skip_analized=1;
826: result=FEXISTS;
1.127 paf 827: goto break2;
828: case 'd': // -d
829: skip_analized=1;
830: result=DEXISTS;
831: goto break2;
832: default:
1.67 paf 833: result=c;
1.127 paf 834: goto break2;
835: }
1.67 paf 836: goto break2;
837: case '+': case '*': case '/': case '%':
1.58 paf 838: case '~':
1.48 paf 839: case ';':
840: RC;
1.59 paf 841: case '&': case '|': case '#':
1.114 paf 842: if(*PC.source==c) { // && ||
1.59 paf 843: result=c=='#'?LXOR:c=='&'?LAND:LOR;
1.67 paf 844: skip_analized=1;
1.58 paf 845: } else
846: result=c;
847: goto break2;
848: case '<': case '>': case '=': case '!':
1.114 paf 849: if(*PC.source=='=') { // <= >= == !=
1.67 paf 850: skip_analized=1;
1.58 paf 851: switch(c) {
852: case '<': result=NLE; break;
853: case '>': result=NGE; break;
854: case '=': result=NEQ; break;
855: case '!': result=NNE; break;
856: }
857: } else
858: result=c;
859: goto break2;
1.48 paf 860: case '"':
1.145 parser 861: push_LS(PC, LS_EXPRESSION_STRING_QUOTED);
862: RC;
863: case '\'':
864: push_LS(PC, LS_EXPRESSION_STRING_APOSTROFED);
1.48 paf 865: RC;
1.50 paf 866: case 'l': case 'g': case 'e': case 'n':
1.51 paf 867: if(end==begin) // right after whitespace
1.117 paf 868: if(isspace(PC.source[1])) {
869: switch(*PC.source) {
870: // case '?': // ok [and bad cases, yacc would bark at them]
871: case 't': // lt gt [et nt]
872: result=c=='l'?SLT:c=='g'?SGT:BAD_STRING_COMPARISON_OPERATOR;
873: skip_analized=1;
874: goto break2;
875: case 'e': // le ge ne [ee]
876: result=c=='l'?SLE:c=='g'?SGE:c=='n'?SNE:BAD_STRING_COMPARISON_OPERATOR;
877: skip_analized=1;
878: goto break2;
879: case 'q': // eq [lq gq nq]
880: result=c=='e'?SEQ:BAD_STRING_COMPARISON_OPERATOR;
881: skip_analized=1;
882: goto break2;
883: }
1.67 paf 884: }
885: break;
886: case 'i':
887: if(end==begin) // right after whitespace
1.117 paf 888: if(isspace(PC.source[1])) {
889: switch(PC.source[0]) {
890: case 'n': // in
1.95 paf 891: skip_analized=1;
892: result=IN;
893: goto break2;
1.117 paf 894: case 's': // is
1.95 paf 895: skip_analized=1;
896: result=IS;
897: goto break2;
898: }
1.67 paf 899: }
900: break;
901: case 'd':
902: if(end==begin) // right after whitespace
1.114 paf 903: if(PC.source[0]=='e' && PC.source[1]=='f') { // def
1.67 paf 904: skip_analized=2;
905: result=DEF;
1.58 paf 906: goto break2;
1.50 paf 907: }
1.48 paf 908: break;
909: case ' ': case '\t': case '\n':
1.63 paf 910: if(end!=begin) { // there were a string after previous operator?
911: result=0; // return that string
912: goto break2;
1.48 paf 913: }
1.63 paf 914: // that's a leading|traling space or after-operator-space
915: // ignoring it
916: // reset piece 'begin' position & line
1.114 paf 917: begin=PC.source; // after whitespace char
918: begin_line=PC.line;
1.48 paf 919: continue;
1.1 paf 920: }
921: break;
922:
1.10 paf 923: // VARIABLE GET/PUT/WITH
1.166 parser 924: case LS_VAR_NAME_SIMPLE_WITH_COLON:
925: case LS_VAR_NAME_SIMPLE_WITHOUT_COLON:
926: case LS_EXPRESSION_VAR_NAME_WITH_COLON:
927: case LS_EXPRESSION_VAR_NAME_WITHOUT_COLON:
928: if(
929: PC.ls==LS_EXPRESSION_VAR_NAME_WITH_COLON ||
930: PC.ls==LS_EXPRESSION_VAR_NAME_WITHOUT_COLON) {
1.56 paf 931: // name in expr ends also before binary operators
1.48 paf 932: switch(c) {
1.92 paf 933: case '-':
1.48 paf 934: pop_LS(PC);
1.114 paf 935: PC.source--; if(--PC.col<0) { PC.line--; PC.col=-1; }
1.48 paf 936: result=EON;
937: goto break2;
938: }
939: }
1.166 parser 940: if(
941: PC.ls==LS_VAR_NAME_SIMPLE_WITHOUT_COLON ||
942: PC.ls==LS_EXPRESSION_VAR_NAME_WITHOUT_COLON) {
1.142 parser 943: // name already has ':', stop before next
944: switch(c) {
945: case ':':
946: pop_LS(PC);
947: PC.source--; if(--PC.col<0) { PC.line--; PC.col=-1; }
948: result=EON;
949: goto break2;
950: }
951: }
1.48 paf 952: switch(c) {
953: case 0:
954: case ' ': case '\t': case '\n':
955: case ';':
1.126 paf 956: case ']': case '}': case ')':
957: case '"': case '\'':
1.139 parser 958: case '<': case '>': // these stand for HTML brackets AND expression binary ops
1.92 paf 959: case '+': case '*': case '/': case '%':
960: case '&': case '|':
961: case '=': case '!':
1.99 paf 962: // common delimiters
1.158 parser 963: case ',': case '?':
1.139 parser 964: // before call
965: case '^':
1.1 paf 966: pop_LS(PC);
1.114 paf 967: PC.source--; if(--PC.col<0) { PC.line--; PC.col=-1; }
1.13 paf 968: result=EON;
1.1 paf 969: goto break2;
1.48 paf 970: case '[':
1.162 parser 971: // $name.<[>code]
972: if(PC.col>1/*not first column*/ && (
1.163 parser 973: end[-1]=='$'/*was start of get*/ ||
974: end[-1]==':'/*was class name delim */ ||
975: end[-1]=='.'/*was name delim */
1.162 parser 976: )) {
1.166 parser 977: push_LS(PC, LS_NAME_SQUARE_PART);
1.162 parser 978: lexical_brackets_nestage=1;
979: RC;
980: }
1.114 paf 981: PC.ls=LS_VAR_SQUARE;
1.1 paf 982: lexical_brackets_nestage=1;
1.48 paf 983: RC;
984: case '{':
985: if(begin==end) { // ${name}, no need of EON, switching LS
1.114 paf 986: PC.ls=LS_VAR_NAME_CURLY;
1.48 paf 987: } else {
1.114 paf 988: PC.ls=LS_VAR_CURLY;
1.48 paf 989: lexical_brackets_nestage=1;
990: }
1.69 paf 991:
1.48 paf 992: RC;
993: case '(':
1.114 paf 994: PC.ls=LS_VAR_ROUND;
1.1 paf 995: lexical_brackets_nestage=1;
1.48 paf 996: RC;
997: case '.': // name part delim
998: case '$': // name part subvar
1.160 parser 999: case ':': // class<:>name
1.166 parser 1000: // go to _WITHOUT_COLON state variant...
1001: if(PC.ls==LS_VAR_NAME_SIMPLE_WITH_COLON)
1002: PC.ls=LS_VAR_NAME_SIMPLE_WITHOUT_COLON;
1003: else if(PC.ls==LS_EXPRESSION_VAR_NAME_WITH_COLON)
1004: PC.ls=LS_EXPRESSION_VAR_NAME_WITHOUT_COLON;
1005: // ...stop before next ':'
1.48 paf 1006: RC;
1.1 paf 1007: }
1008: break;
1.48 paf 1009:
1.1 paf 1010: case LS_VAR_NAME_CURLY:
1.48 paf 1011: switch(c) {
1.162 parser 1012: case '[':
1.166 parser 1013: // ${name.<[>code]}
1014: push_LS(PC, LS_NAME_SQUARE_PART);
1.160 parser 1015: lexical_brackets_nestage=1;
1016: RC;
1.48 paf 1017: case '}': // ${name} finished, restoring LS
1.1 paf 1018: pop_LS(PC);
1.48 paf 1019: RC;
1020: case '.': // name part delim
1021: case '$': // name part subvar
1022: case ':': // ':name' or 'class:name'
1023: RC;
1.1 paf 1024: }
1025: break;
1.48 paf 1026:
1027: case LS_VAR_SQUARE:
1028: switch(c) {
1029: case '$':
1.166 parser 1030: push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1031: RC;
1032: case '^':
1.10 paf 1033: push_LS(PC, LS_METHOD_NAME);
1.48 paf 1034: RC;
1035: case ']':
1.1 paf 1036: if(--lexical_brackets_nestage==0) {
1037: pop_LS(PC);
1.48 paf 1038: RC;
1.1 paf 1039: }
1.48 paf 1040: break;
1041: case ';': // operator_or_fmt;value delim
1042: RC;
1043: case '[':
1044: lexical_brackets_nestage++;
1045: break;
1.1 paf 1046: }
1047: break;
1.48 paf 1048:
1.1 paf 1049: case LS_VAR_CURLY:
1.48 paf 1050: switch(c) {
1051: case '$':
1.166 parser 1052: push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1053: RC;
1054: case '^':
1.10 paf 1055: push_LS(PC, LS_METHOD_NAME);
1.48 paf 1056: RC;
1057: case '}':
1.1 paf 1058: if(--lexical_brackets_nestage==0) {
1059: pop_LS(PC);
1.48 paf 1060: RC;
1.1 paf 1061: }
1.48 paf 1062: break;
1063: case '{':
1.1 paf 1064: lexical_brackets_nestage++;
1.48 paf 1065: break;
1066: }
1.1 paf 1067: break;
1068:
1.10 paf 1069: // METHOD CALL
1.1 paf 1070: case LS_METHOD_NAME:
1.48 paf 1071: switch(c) {
1072: case '[':
1.166 parser 1073: // ^name.<[>code].xxx
1.162 parser 1074: if(PC.col>1/*not first column*/ && (
1.163 parser 1075: end[-1]=='^'/*was start of call*/ || // never, ^[ is literal...
1076: end[-1]==':'/*was class name delim */ ||
1077: end[-1]=='.'/*was name delim */
1.162 parser 1078: )) {
1.166 parser 1079: push_LS(PC, LS_NAME_SQUARE_PART);
1.162 parser 1080: lexical_brackets_nestage=1;
1081: RC;
1082: }
1.114 paf 1083: PC.ls=LS_METHOD_SQUARE;
1.1 paf 1084: lexical_brackets_nestage=1;
1.48 paf 1085: RC;
1086: case '{':
1.114 paf 1087: PC.ls=LS_METHOD_CURLY;
1.1 paf 1088: lexical_brackets_nestage=1;
1.48 paf 1089: RC;
1.69 paf 1090: case '(':
1.114 paf 1091: PC.ls=LS_METHOD_ROUND;
1.69 paf 1092: lexical_brackets_nestage=1;
1093: RC;
1.48 paf 1094: case '.': // name part delim
1095: case '$': // name part subvar
1096: case ':': // ':name' or 'class:name'
1.170 ! parser 1097: case '^': // ^abc^xxx wrong. bailing out
! 1098: case ']': case '}': case ')': // ^abc]}) wrong. bailing out
1.48 paf 1099: RC;
1.1 paf 1100: }
1101: break;
1.48 paf 1102:
1103: case LS_METHOD_SQUARE:
1104: switch(c) {
1105: case '$':
1.166 parser 1106: push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1107: RC;
1108: case '^':
1.10 paf 1109: push_LS(PC, LS_METHOD_NAME);
1.48 paf 1110: RC;
1111: case ';': // param delim
1112: RC;
1113: case ']':
1.1 paf 1114: if(--lexical_brackets_nestage==0) {
1.114 paf 1115: PC.ls=LS_METHOD_AFTER;
1.48 paf 1116: RC;
1.1 paf 1117: }
1.48 paf 1118: break;
1119: case '[':
1.1 paf 1120: lexical_brackets_nestage++;
1.48 paf 1121: break;
1122: }
1.1 paf 1123: break;
1.48 paf 1124:
1.1 paf 1125: case LS_METHOD_CURLY:
1.48 paf 1126: switch(c) {
1127: case '$':
1.166 parser 1128: push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1129: RC;
1130: case '^':
1.10 paf 1131: push_LS(PC, LS_METHOD_NAME);
1.94 paf 1132: RC;
1133: case ';': // param delim
1.48 paf 1134: RC;
1135: case '}':
1.1 paf 1136: if(--lexical_brackets_nestage==0) {
1.114 paf 1137: PC.ls=LS_METHOD_AFTER;
1.48 paf 1138: RC;
1.1 paf 1139: }
1.48 paf 1140: break;
1141: case '{':
1.1 paf 1142: lexical_brackets_nestage++;
1.48 paf 1143: break;
1144: }
1.1 paf 1145: break;
1.48 paf 1146:
1.1 paf 1147: case LS_METHOD_AFTER:
1.69 paf 1148: if(c=='[') {/* ][ }[ )[ */
1.114 paf 1149: PC.ls=LS_METHOD_SQUARE;
1.1 paf 1150: lexical_brackets_nestage=1;
1.48 paf 1151: RC;
1.1 paf 1152: }
1.69 paf 1153: if(c=='{') {/* ]{ }{ ){ */
1.114 paf 1154: PC.ls=LS_METHOD_CURLY;
1.69 paf 1155: lexical_brackets_nestage=1;
1156: RC;
1157: }
1158: if(c=='(') {/* ]( }( )( */
1.114 paf 1159: PC.ls=LS_METHOD_ROUND;
1.1 paf 1160: lexical_brackets_nestage=1;
1.48 paf 1161: RC;
1.1 paf 1162: }
1163: pop_LS(PC);
1.114 paf 1164: PC.source--; if(--PC.col<0) { PC.line--; PC.col=-1; }
1.13 paf 1165: result=EON;
1.1 paf 1166: goto break2;
1167: }
1.9 paf 1168: if(c==0) {
1.1 paf 1169: result=-1;
1170: break;
1171: }
1172: }
1173:
1174: break2:
1.59 paf 1175: if(end!=begin) { // there is last piece?
1176: if((c=='@' || c==0) && end[-1]=='\n') { // we are before LS_DEF_NAME or EOF?
1177: // strip last \n
1.10 paf 1178: end--;
1.137 parser 1179: if(end!=begin && end[-1]=='\n') // allow one empty line before LS_DEF_NAME
1180: end--;
1.59 paf 1181: }
1.133 parser 1182: if(end!=begin && PC.ls!=LS_COMMENT) { // last piece still alive and not comment?
1.59 paf 1183: // append it
1.121 paf 1184: PC.string->APPEND_CLEAN(begin, end-begin, PC.file, begin_line/*, start_col*/);
1.30 paf 1185: }
1.59 paf 1186: }
1.114 paf 1187: if(PC.string->size()) { // something accumulated?
1.17 paf 1188: // create STRING value: array of OP_VALUE+vstring
1.114 paf 1189: *lvalp=VL(NEW VString(*PC.string));
1.10 paf 1190: // new pieces storage
1.114 paf 1191: PC.string=NEW String(POOL);
1.58 paf 1192: // make current result be pending for next call, return STRING for now
1.114 paf 1193: PC.pending_state=result; result=STRING;
1.58 paf 1194: }
1.67 paf 1195: if(skip_analized) {
1.114 paf 1196: PC.source+=skip_analized; PC.col+=skip_analized;
1.1 paf 1197: }
1.58 paf 1198: return result;
1.1 paf 1199: }
1200:
1.110 paf 1201: static int real_yyerror(parse_control *pc, char *s) { // Called by yyparse on error
1.114 paf 1202: strncpy(PC.error, s, MAX_STRING);
1.1 paf 1203: return 1;
1.110 paf 1204: }
1.1 paf 1205:
1.110 paf 1206: static void yyprint(FILE *file, int type, YYSTYPE value) {
1207: if(type==STRING)
1.120 paf 1208: fprintf(file, " \"%s\"", LA2S(value)->cstr());
1.110 paf 1209: }
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