Annotation of parser3/src/main/compile.y, revision 1.182
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:
1.182 ! paf 8: $Id: compile.y,v 1.181 2002/02/18 12:05:02 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);
1.179 paf 255: // self.xxx... -> xxx...
256: // OP_VALUE+string+OP_GET_ELEMENT+... -> OP_WITH_SELF+...
1.85 paf 257: if(first_name && *first_name==SELF_ELEMENT_NAME) {
1.54 paf 258: O($$, OP_WITH_SELF); /* stack: starting context */
1.22 paf 259: P($$, diving_code,
260: /* skip over... */
1.179 paf 261: diving_code->size()>=3?3/*OP_VALUE+string+OP_GET_ELEMENTx*/:2/*OP_+string*/);
1.22 paf 262: } else {
1.54 paf 263: O($$, OP_WITH_READ); /* stack: starting context */
1.179 paf 264:
265: // ^if ELEMENT -> ^if ELEMENT_OR_OPERATOR
266: // OP_VALUE+string+OP_GET_ELEMENT. -> OP_VALUE+string+OP_GET_ELEMENT_OR_OPERATOR.
1.180 paf 267: if(PC.in_call_value && diving_code->size()==3)
1.179 paf 268: diving_code->put_int(2, OP_GET_ELEMENT_OR_OPERATOR);
1.22 paf 269: P($$, diving_code);
270: }
271: /* diving code; stack: current context */
1.1 paf 272: };
1.155 parser 273: name_without_curly_rdive_class: class_prefix name_without_curly_rdive_code { $$=$1; P($$, $2) };
1.19 paf 274: name_without_curly_rdive_code: name_advance2 | name_path name_advance2 { $$=$1; P($$, $2) };
1.1 paf 275:
276: /* put */
277:
1.81 paf 278: put: '$' name_expr_wdive construct {
1.20 paf 279: $$=$2; /* stack: context,name */
1.52 paf 280: P($$, $3); /* stack: context,name,constructor_value */
1.20 paf 281: };
1.44 paf 282: name_expr_wdive:
1.157 parser 283: name_expr_wdive_root
284: | name_expr_wdive_write
1.44 paf 285: | name_expr_wdive_class;
1.157 parser 286: name_expr_wdive_root: name_expr_dive_code {
1.44 paf 287: $$=N(POOL);
1.23 paf 288: Array *diving_code=$1;
1.120 paf 289: const String *first_name=LA2S(diving_code);
1.179 paf 290: // $self.xxx... -> $xxx...
291: // OP_VALUE+string+OP_GET_ELEMENT+... -> OP_WITH_SELF+...
1.85 paf 292: if(first_name && *first_name==SELF_ELEMENT_NAME) {
1.54 paf 293: O($$, OP_WITH_SELF); /* stack: starting context */
1.23 paf 294: P($$, diving_code,
295: /* skip over... */
1.179 paf 296: diving_code->size()>=3?3/*OP_VALUE+string+OP_GET_ELEMENTx*/:2/*OP_+string*/);
1.23 paf 297: } else {
1.157 parser 298: O($$, OP_WITH_ROOT); /* stack: starting context */
1.23 paf 299: P($$, diving_code);
300: }
301: /* diving code; stack: current context */
1.156 parser 302: };
1.157 parser 303: name_expr_wdive_write: '.' name_expr_dive_code {
1.156 parser 304: $$=N(POOL);
1.157 parser 305: O($$, OP_WITH_WRITE); /* stack: starting context */
1.156 parser 306: P($$, $2); /* diving code; stack: context,name */
1.20 paf 307: };
1.155 parser 308: name_expr_wdive_class: class_prefix name_expr_dive_code { $$=$1; P($$, $2) };
1.20 paf 309:
1.149 parser 310: construct:
1.163 parser 311: construct_square
312: | construct_round
313: | construct_curly
1.149 parser 314: ;
315: construct_square: '[' any_constructor_code_value ']' {
316: // stack: context, name
317: $$=$2; // stack: context, name, value
1.81 paf 318: O($$, OP_CONSTRUCT_VALUE); /* value=pop; name=pop; context=pop; construct(context,name,value) */
319: }
320: ;
1.149 parser 321: construct_round: '(' expr_value ')' {
1.182 ! paf 322: $$=N(POOL);
! 323: O($$, OP_PREPARE_TO_EXPRESSION);
1.149 parser 324: // stack: context, name
1.182 ! paf 325: P($$, $2); // stack: context, name, value
1.163 parser 326: O($$, OP_CONSTRUCT_EXPR); /* value=pop->as_expr_result; name=pop; context=pop; construct(context,name,value) */
1.81 paf 327: }
1.52 paf 328: ;
1.149 parser 329: construct_curly: '{' maybe_codes '}' {
330: // stack: context, name
331: $$=N(POOL);
332: CCA($$, $2); /* code=pop; name=pop; context=pop; construct(context,name,junction(code)) */
333: };
334:
1.55 paf 335: any_constructor_code_value:
1.157 parser 336: void_value /* optimized $var[] case */
1.52 paf 337: | STRING /* optimized $var[STRING] case */
1.55 paf 338: | constructor_code_value /* $var[something complex] */
1.1 paf 339: ;
1.55 paf 340: constructor_code_value: constructor_code {
1.25 paf 341: $$=N(POOL);
1.54 paf 342: O($$, OP_CREATE_EWPOOL); /* stack: empty write context */
1.69 paf 343: P($$, $1); /* some code that writes to that context */
1.54 paf 344: O($$, OP_REDUCE_EWPOOL); /* context=pop; stack: context.value() */
1.1 paf 345: };
1.55 paf 346: constructor_code: codes__excluding_sole_str_literal;
1.27 paf 347: codes__excluding_sole_str_literal: action | code codes { $$=$1; P($$, $2) };
348:
1.1 paf 349: /* call */
350:
1.66 paf 351: call: call_value {
352: $$=$1; /* stack: value */
1.102 paf 353: O($$, OP_WRITE_VALUE); /* value=pop; wcontext.write(value) */
1.66 paf 354: };
1.177 paf 355: call_value: '^' {
1.180 paf 356: PC.in_call_value=true;
1.177 paf 357: }
358: call_name {
1.180 paf 359: PC.in_call_value=false;
1.177 paf 360: }
1.154 parser 361: store_params EON { /* ^field.$method{vasya} */
362: $$=$3; /* with_xxx,diving code; stack: context,method_junction */
1.54 paf 363: O($$, OP_GET_METHOD_FRAME); /* stack: context,method_frame */
1.123 paf 364:
1.154 parser 365: YYSTYPE params_code=$5;
1.140 parser 366: if(params_code->size()==3) // probably [] case. [OP_VALUE + Void + STORE_PARAM]
1.123 paf 367: if(Value *value=LA2V(params_code)) // it is OP_VALUE + value?
1.140 parser 368: if(!value->is_defined()) // value is VVoid?
1.123 paf 369: params_code=0; // ^zzz[] case. don't append lone empty param.
370: if(params_code)
371: P($$, params_code); // filling method_frame.store_params
1.155 parser 372: O($$, OP_CALL); // method_frame=pop; ncontext=pop; call(ncontext,method_frame) stack: value
1.1 paf 373: };
374:
1.43 paf 375: call_name: name_without_curly_rdive;
1.38 paf 376:
1.9 paf 377: store_params: store_param | store_params store_param { $$=$1; P($$, $2) };
1.69 paf 378: store_param:
379: store_square_param
380: | store_round_param
381: | store_curly_param
1.31 paf 382: ;
1.123 paf 383: store_square_param: '[' store_code_param_parts ']' {$$=$2};
1.69 paf 384: store_round_param: '(' store_expr_param_parts ')' {$$=$2};
1.94 paf 385: store_curly_param: '{' store_curly_param_parts '}' {$$=$2};
1.69 paf 386: store_code_param_parts:
387: store_code_param_part
388: | store_code_param_parts ';' store_code_param_part { $$=$1; P($$, $3) }
389: ;
390: store_expr_param_parts:
391: store_expr_param_part
392: | store_expr_param_parts ';' store_expr_param_part { $$=$1; P($$, $3) }
393: ;
1.94 paf 394: store_curly_param_parts:
395: store_curly_param_part
396: | store_curly_param_parts ';' store_curly_param_part { $$=$1; P($$, $3) }
397: ;
1.120 paf 398: store_code_param_part: code_param_value {
1.32 paf 399: $$=$1;
1.54 paf 400: O($$, OP_STORE_PARAM);
1.120 paf 401: };
1.69 paf 402: store_expr_param_part: write_expr_value {
403: $$=N(POOL);
1.103 paf 404: PEA($$, $1);
1.69 paf 405: };
1.94 paf 406: store_curly_param_part: maybe_codes {
407: $$=N(POOL);
408: PCA($$, $1);
409: };
1.120 paf 410: code_param_value:
1.157 parser 411: void_value /* optimized [;...] case */
1.120 paf 412: | STRING /* optimized [STRING] case */
413: | constructor_code_value /* [something complex] */
414: ;
1.90 paf 415: write_expr_value: expr_value {
1.182 ! paf 416: $$=N(POOL);
! 417: O($$, OP_PREPARE_TO_EXPRESSION);
! 418: P($$, $1);
1.102 paf 419: O($$, OP_WRITE_EXPR_RESULT);
1.69 paf 420: };
1.1 paf 421:
422: /* name */
423:
1.20 paf 424: name_expr_dive_code: name_expr_value | name_path name_expr_value { $$=$1; P($$, $2) };
1.1 paf 425:
1.9 paf 426: name_path: name_step | name_path name_step { $$=$1; P($$, $2) };
1.1 paf 427: name_step: name_advance1 '.';
428: name_advance1: name_expr_value {
1.177 paf 429: // we know that name_advance1 not called from ^xxx context
430: // so we'll not check for operator call possibility as we do in name_advance2
431:
1.1 paf 432: /* stack: context */
433: $$=$1; /* stack: context,name */
1.54 paf 434: O($$, OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */
1.1 paf 435: };
436: name_advance2: name_expr_value {
437: /* stack: context */
438: $$=$1; /* stack: context,name */
1.179 paf 439: O($$, OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */
1.1 paf 440: }
1.4 paf 441: | STRING BOGUS
1.1 paf 442: ;
443: name_expr_value:
1.4 paf 444: STRING /* subname_is_const */
1.1 paf 445: | name_expr_subvar_value /* $subname_is_var_value */
1.160 parser 446: | name_expr_with_subvar_value /* xxx$part_of_subname_is_var_value */
1.166 parser 447: | name_square_code_value /* [codes] */
1.1 paf 448: ;
449: name_expr_subvar_value: '$' subvar_ref_name_rdive {
450: $$=$2;
1.54 paf 451: O($$, OP_GET_ELEMENT);
1.1 paf 452: };
1.4 paf 453: name_expr_with_subvar_value: STRING subvar_get_writes {
1.25 paf 454: $$=N(POOL);
1.54 paf 455: O($$, OP_CREATE_EWPOOL);
1.9 paf 456: P($$, $1);
1.102 paf 457: O($$, OP_WRITE_VALUE);
1.9 paf 458: P($$, $2);
1.54 paf 459: O($$, OP_REDUCE_EWPOOL);
1.1 paf 460: };
1.166 parser 461: name_square_code_value: '[' codes ']' {
1.160 parser 462: $$=N(POOL);
463: O($$, OP_CREATE_EWPOOL);
464: P($$, $2);
465: O($$, OP_REDUCE_EWPOOL);
466: };
1.154 parser 467: subvar_ref_name_rdive: STRING {
1.25 paf 468: $$=N(POOL);
1.54 paf 469: O($$, OP_WITH_READ);
1.9 paf 470: P($$, $1);
1.1 paf 471: };
1.9 paf 472: subvar_get_writes: subvar__get_write | subvar_get_writes subvar__get_write { $$=$1; P($$, $2) };
1.1 paf 473: subvar__get_write: '$' subvar_ref_name_rdive {
474: $$=$2;
1.54 paf 475: O($$, OP_GET_ELEMENT__WRITE);
1.42 paf 476: };
477:
1.154 parser 478: class_prefix:
479: class_static_prefix
480: | class_constructor_prefix
481: ;
1.155 parser 482: class_static_prefix: STRING ':' {
483: $$=$1; // stack: class name string
484: O($$, OP_GET_CLASS);
485: };
486: class_constructor_prefix: class_static_prefix ':' {
1.154 parser 487: $$=$1;
1.180 paf 488: if(!PC.in_call_value) {
1.154 parser 489: strcpy(PC.error, ":: not allowed here");
490: YYERROR;
491: }
1.155 parser 492: O($$, OP_PREPARE_TO_CONSTRUCT_OBJECT);
1.1 paf 493: };
494:
1.53 paf 495:
1.56 paf 496: /* expr */
1.53 paf 497:
1.81 paf 498: expr_value: expr {
1.182 ! paf 499: // see OP_PREPARE_TO_EXPRESSION!!
1.81 paf 500: if(($$=$1)->size()==2) // only one string literal in there?
1.62 paf 501: change_string_literal_to_double_literal($$); // make that string literal Double
502: };
1.56 paf 503: expr:
1.62 paf 504: STRING
1.64 paf 505: | get_value
1.66 paf 506: | call_value
1.64 paf 507: | '"' string_inside_quotes_value '"' { $$ = $2; }
1.145 parser 508: | '\'' string_inside_quotes_value '\'' { $$ = $2; }
1.60 paf 509: | '(' expr ')' { $$ = $2; }
510: /* stack: operand // stack: @operand */
511: | '-' expr %prec NEG { $$=$2; O($$, OP_NEG) }
1.166 parser 512: | '+' expr %prec NEG { $$=$2 }
1.68 paf 513: | '~' expr { $$=$2; O($$, OP_INV) }
514: | '!' expr { $$=$2; O($$, OP_NOT) }
515: | "def" expr { $$=$2; O($$, OP_DEF) }
516: | "in" expr { $$=$2; O($$, OP_IN) }
517: | "-f" expr { $$=$2; O($$, OP_FEXISTS) }
1.127 paf 518: | "-d" expr { $$=$2; O($$, OP_DEXISTS) }
1.60 paf 519: /* stack: a,b // stack: a@b */
520: | expr '-' expr { $$=$1; P($$, $3); O($$, OP_SUB) }
521: | expr '+' expr { $$=$1; P($$, $3); O($$, OP_ADD) }
522: | expr '*' expr { $$=$1; P($$, $3); O($$, OP_MUL) }
523: | expr '/' expr { $$=$1; P($$, $3); O($$, OP_DIV) }
524: | expr '%' expr { $$=$1; P($$, $3); O($$, OP_MOD) }
1.173 paf 525: | expr '\\' expr { $$=$1; P($$, $3); O($$, OP_INTDIV) }
1.60 paf 526: | expr '&' expr { $$=$1; P($$, $3); O($$, OP_BIN_AND) }
527: | expr '|' expr { $$=$1; P($$, $3); O($$, OP_BIN_OR) }
528: | expr '#' expr { $$=$1; P($$, $3); O($$, OP_BIN_XOR) }
1.174 paf 529: | expr "&&" expr { $$=$1; PNC($$, $3); O($$, OP_LOG_AND) }
530: | expr "||" expr { $$=$1; PNC($$, $3); O($$, OP_LOG_OR) }
1.60 paf 531: | expr "##" expr { $$=$1; P($$, $3); O($$, OP_LOG_XOR) }
532: | expr '<' expr { $$=$1; P($$, $3); O($$, OP_NUM_LT) }
533: | expr '>' expr { $$=$1; P($$, $3); O($$, OP_NUM_GT) }
534: | expr "<=" expr { $$=$1; P($$, $3); O($$, OP_NUM_LE) }
535: | expr ">=" expr { $$=$1; P($$, $3); O($$, OP_NUM_GE) }
536: | expr "==" expr { $$=$1; P($$, $3); O($$, OP_NUM_EQ) }
537: | expr "!=" expr { $$=$1; P($$, $3); O($$, OP_NUM_NE) }
1.61 paf 538: | expr "lt" expr { $$=$1; P($$, $3); O($$, OP_STR_LT) }
539: | expr "gt" expr { $$=$1; P($$, $3); O($$, OP_STR_GT) }
540: | expr "le" expr { $$=$1; P($$, $3); O($$, OP_STR_LE) }
541: | expr "ge" expr { $$=$1; P($$, $3); O($$, OP_STR_GE) }
542: | expr "eq" expr { $$=$1; P($$, $3); O($$, OP_STR_EQ) }
543: | expr "ne" expr { $$=$1; P($$, $3); O($$, OP_STR_NE) }
1.95 paf 544: | expr "is" expr { $$=$1; P($$, $3); O($$, OP_IS) }
1.56 paf 545: ;
1.55 paf 546:
1.65 paf 547: string_inside_quotes_value: maybe_codes {
1.64 paf 548: $$=N(POOL);
549: O($$, OP_CREATE_SWPOOL); /* stack: empty write context */
1.69 paf 550: P($$, $1); /* some code that writes to that context */
1.64 paf 551: O($$, OP_REDUCE_SWPOOL); /* context=pop; stack: context.get_string() */
1.53 paf 552: };
1.1 paf 553:
1.27 paf 554: /* basics */
1.1 paf 555:
1.81 paf 556: write_string: STRING {
1.102 paf 557: // optimized from OP_STRING+OP_WRITE_VALUE to OP_STRING__WRITE
1.84 paf 558: change_string_literal_to_write_string_literal($$=$1)
1.54 paf 559: };
560:
1.157 parser 561: void_value: /* empty */ { $$=VL(NEW VVoid(POOL)) };
1.25 paf 562: empty: /* empty */ { $$=N(POOL) };
1.1 paf 563:
564: %%
1.105 paf 565: #endif
1.1 paf 566:
567: /*
568: 000$111(2222)00
569: 000$111{3333}00
1.9 paf 570: $,^: push,=0
1.1 paf 571: 1:( { break=pop
572: 2:( ) pop
573: 3:{ } pop
574:
575: 000^111(2222)4444{33333}4000
1.9 paf 576: $,^: push,=0
1.1 paf 577: 1:( { break=pop
578: 2:( )=4
579: 3:{ }=4
580: 4:[^({]=pop
581: */
582:
1.110 paf 583: static int yylex(YYSTYPE *lvalp, void *pc) {
1.177 paf 584: #define lexical_brackets_nestage PC.brackets_nestages[PC.ls_sp]
1.48 paf 585: #define RC {result=c; goto break2; }
1.1 paf 586:
587: register int c;
588: int result;
589:
1.114 paf 590: if(PC.pending_state) {
591: result=PC.pending_state;
592: PC.pending_state=0;
1.1 paf 593: return result;
594: }
595:
1.114 paf 596: const char *begin=PC.source;
1.91 paf 597: const char *end;
1.114 paf 598: int begin_line=PC.line;
1.67 paf 599: int skip_analized=0;
1.50 paf 600: while(true) {
1.114 paf 601: c=*(end=(PC.source++));
1.166 parser 602: // fprintf(stderr, "\nchar: %c %02X; nestage: %d, sp=%d", c, c, lexical_brackets_nestage, PC.sp);
1.1 paf 603:
1.4 paf 604: if(c=='\n') {
1.114 paf 605: PC.line++;
606: PC.col=0;
1.10 paf 607: } else
1.114 paf 608: PC.col++;
1.73 paf 609:
1.171 parser 610: if(c=='@' && PC.col==0+1) {
1.175 paf 611: if(PC.ls==LS_DEF_SPECIAL_BODY) {
612: // @SPECIAL
613: // ...
614: // @<here =
615: pop_LS(PC); // exiting from LS_DEF_SPECIAL_BODY state
616: } // continuing checks
1.171 parser 617: if(PC.ls==LS_USER) {
618: push_LS(PC, LS_DEF_NAME);
619: RC;
1.175 paf 620: } else // @ in first column inside some code [when could that be?]
1.171 parser 621: result=BAD_METHOD_DECL_START;
622: goto break2;
623: } else if(c=='^')
1.169 parser 624: switch(PC.ls) {
625: case LS_EXPRESSION_VAR_NAME_WITH_COLON:
626: case LS_EXPRESSION_VAR_NAME_WITHOUT_COLON:
627: case LS_VAR_NAME_SIMPLE_WITH_COLON:
628: case LS_VAR_NAME_SIMPLE_WITHOUT_COLON:
629: case LS_VAR_NAME_CURLY:
630: case LS_METHOD_NAME:
631: case LS_COMMENT:
632: case LS_DEF_COMMENT:
633: // no literals in names, please
634: break;
635: default:
1.114 paf 636: switch(*PC.source) {
1.165 parser 637: // ^escaping some punctuators
1.48 paf 638: case '^': case '$': case ';':
1.126 paf 639: case '(': case ')':
1.48 paf 640: case '[': case ']':
641: case '{': case '}':
1.172 parser 642: case '"': case ':':
1.40 paf 643: if(end!=begin) {
644: // append piece till ^
1.121 paf 645: PC.string->APPEND_CLEAN(begin, end-begin, PC.file, begin_line);
1.40 paf 646: }
1.63 paf 647: // reset piece 'begin' position & line
1.164 parser 648: end=begin=PC.source; // ^
1.114 paf 649: begin_line=PC.line;
1.164 parser 650: if(PC.ls==LS_METHOD_AFTER) {
651: pop_LS(PC);
652: result=EON;
1.165 parser 653: skip_analized=-1; // return to ^ afterwards to assure it's literality
1.164 parser 654: goto break2;
655: } else {
656: // skip over _ after ^
657: PC.source++; PC.col++;
658: // skip analysis = forced literal
659: continue;
660: }
1.114 paf 661:
662: // converting ^#HH into char(hex(HH))
663: case '#':
664: if(end!=begin) {
665: // append piece till ^
1.121 paf 666: PC.string->APPEND_CLEAN(begin, end-begin, PC.file, begin_line);
1.114 paf 667: }
668: // #HH ?
669: if(PC.source[0]=='#' && PC.source[1] && PC.source[2]) {
670: char *hex=(char *)POOL.malloc(1);
671: hex[0]=
672: hex_value[(unsigned char)PC.source[1]]*0x10+
673: hex_value[(unsigned char)PC.source[2]];
674: if(hex[0]==0) {
675: result=BAD_HEX_LITERAL;
676: goto break2; // wrong hex value[no ^#00 chars allowed]: bail out
677: }
678: // append char(hex(HH))
1.121 paf 679: PC.string->APPEND_CLEAN(hex, 1, PC.file, begin_line);
1.114 paf 680: // skip over ^#HH
681: PC.source+=3;
682: PC.col+=3;
683: // reset piece 'begin' position & line
684: begin=PC.source; // ^
685: begin_line=PC.line;
686: continue;
687: }
688: break;
1.1 paf 689: }
1.169 parser 690: break;
691: }
1.113 paf 692: // #comment start skipping
1.114 paf 693: if(c=='#' && PC.col==1) {
1.112 paf 694: if(end!=begin) {
695: // append piece till #
1.121 paf 696: PC.string->APPEND_CLEAN(begin, end-begin, PC.file, begin_line);
1.112 paf 697: }
698: // fall into COMMENT lexical state [wait for \n]
699: push_LS(PC, LS_COMMENT);
1.175 paf 700: continue;
1.112 paf 701: }
1.114 paf 702: switch(PC.ls) {
1.10 paf 703:
704: // USER'S = NOT OURS
1.1 paf 705: case LS_USER:
1.166 parser 706: case LS_NAME_SQUARE_PART: // name.[here].xxx
1.153 parser 707: if(PC.trim_bof)
708: switch(c) {
709: case '\n': case ' ': case '\t':
1.152 parser 710: begin=PC.source;
711: begin_line=PC.line;
712: continue; // skip it
1.153 parser 713: default:
714: PC.trim_bof=false;
1.152 parser 715: }
1.48 paf 716: switch(c) {
717: case '$':
1.166 parser 718: push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 719: RC;
720: case '^':
721: push_LS(PC, LS_METHOD_NAME);
722: RC;
1.166 parser 723: case ']':
724: if(PC.ls==LS_NAME_SQUARE_PART)
725: if(--lexical_brackets_nestage==0) {// $name.[co<]?>de<]?>
726: pop_LS(PC); // $name.[co<]>de<]!>
727: RC;
728: }
1.160 parser 729: break;
1.166 parser 730: case '[': // $name.[co<[>de]
731: if(PC.ls==LS_NAME_SQUARE_PART)
732: lexical_brackets_nestage++;
1.161 parser 733: break;
1.112 paf 734: }
735: break;
736:
737: // #COMMENT
738: case LS_COMMENT:
739: if(c=='\n') {
740: // skip comment
1.114 paf 741: begin=PC.source;
742: begin_line=PC.line;
1.112 paf 743:
744: pop_LS(PC);
745: continue;
1.1 paf 746: }
1.48 paf 747: break;
748:
749: // STRING IN EXPRESSION
1.145 parser 750: case LS_EXPRESSION_STRING_QUOTED:
751: case LS_EXPRESSION_STRING_APOSTROFED:
1.48 paf 752: switch(c) {
753: case '"':
1.145 parser 754: case '\'':
755: if(
756: PC.ls == LS_EXPRESSION_STRING_QUOTED && c=='"' ||
757: PC.ls == LS_EXPRESSION_STRING_APOSTROFED && c=='\'') {
758: pop_LS(PC); //"abc". | 'abc'.
759: RC;
760: }
761: break;
1.48 paf 762: case '$':
1.166 parser 763: push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 764: RC;
765: case '^':
1.10 paf 766: push_LS(PC, LS_METHOD_NAME);
1.48 paf 767: RC;
1.10 paf 768: }
769: break;
770:
771: // METHOD DEFINITION
772: case LS_DEF_NAME:
1.48 paf 773: switch(c) {
774: case '[':
1.114 paf 775: PC.ls=LS_DEF_PARAMS;
1.48 paf 776: RC;
777: case '\n':
1.114 paf 778: PC.ls=LS_DEF_SPECIAL_BODY;
1.48 paf 779: RC;
1.10 paf 780: }
781: break;
1.48 paf 782:
1.10 paf 783: case LS_DEF_PARAMS:
1.48 paf 784: switch(c) {
785: case ';':
786: RC;
787: case ']':
1.114 paf 788: PC.ls=*PC.source=='['?LS_DEF_LOCALS:LS_DEF_COMMENT;
1.48 paf 789: RC;
1.49 paf 790: case '\n': // wrong. bailing out
1.10 paf 791: pop_LS(PC);
1.48 paf 792: RC;
1.10 paf 793: }
794: break;
1.48 paf 795:
1.10 paf 796: case LS_DEF_LOCALS:
1.48 paf 797: switch(c) {
798: case '[':
799: case ';':
800: RC;
801: case ']':
1.114 paf 802: PC.ls=LS_DEF_COMMENT;
1.48 paf 803: RC;
804: case '\n': // wrong. bailing out
1.10 paf 805: pop_LS(PC);
1.48 paf 806: RC;
1.10 paf 807: }
808: break;
1.48 paf 809:
1.10 paf 810: case LS_DEF_COMMENT:
811: if(c=='\n') {
812: pop_LS(PC);
1.48 paf 813: RC;
1.37 paf 814: }
815: break;
816:
1.48 paf 817: case LS_DEF_SPECIAL_BODY:
1.175 paf 818: if(c=='\n')
1.48 paf 819: RC;
820: break;
821:
822: // (EXPRESSION)
1.69 paf 823: case LS_VAR_ROUND:
824: case LS_METHOD_ROUND:
1.48 paf 825: switch(c) {
826: case ')':
827: if(--lexical_brackets_nestage==0)
1.114 paf 828: if(PC.ls==LS_METHOD_ROUND) // method round param ended
829: PC.ls=LS_METHOD_AFTER; // look for method end
830: else // PC.ls==LS_VAR_ROUND // variable constructor ended
1.69 paf 831: pop_LS(PC); // return to normal life
1.48 paf 832: RC;
833: case '$':
1.166 parser 834: push_LS(PC, LS_EXPRESSION_VAR_NAME_WITH_COLON);
1.48 paf 835: RC;
836: case '^':
837: push_LS(PC, LS_METHOD_NAME);
838: RC;
839: case '(':
840: lexical_brackets_nestage++;
841: RC;
1.67 paf 842: case '-':
1.127 paf 843: switch(*PC.source) {
844: case 'f': // -f
1.67 paf 845: skip_analized=1;
846: result=FEXISTS;
1.127 paf 847: goto break2;
848: case 'd': // -d
849: skip_analized=1;
850: result=DEXISTS;
851: goto break2;
852: default:
1.67 paf 853: result=c;
1.127 paf 854: goto break2;
855: }
1.67 paf 856: goto break2;
1.173 paf 857: case '+': case '*': case '/': case '%': case '\\':
1.58 paf 858: case '~':
1.48 paf 859: case ';':
860: RC;
1.59 paf 861: case '&': case '|': case '#':
1.114 paf 862: if(*PC.source==c) { // && ||
1.59 paf 863: result=c=='#'?LXOR:c=='&'?LAND:LOR;
1.67 paf 864: skip_analized=1;
1.58 paf 865: } else
866: result=c;
867: goto break2;
868: case '<': case '>': case '=': case '!':
1.114 paf 869: if(*PC.source=='=') { // <= >= == !=
1.67 paf 870: skip_analized=1;
1.58 paf 871: switch(c) {
872: case '<': result=NLE; break;
873: case '>': result=NGE; break;
874: case '=': result=NEQ; break;
875: case '!': result=NNE; break;
876: }
877: } else
878: result=c;
879: goto break2;
1.48 paf 880: case '"':
1.145 parser 881: push_LS(PC, LS_EXPRESSION_STRING_QUOTED);
882: RC;
883: case '\'':
884: push_LS(PC, LS_EXPRESSION_STRING_APOSTROFED);
1.48 paf 885: RC;
1.50 paf 886: case 'l': case 'g': case 'e': case 'n':
1.51 paf 887: if(end==begin) // right after whitespace
1.117 paf 888: if(isspace(PC.source[1])) {
889: switch(*PC.source) {
890: // case '?': // ok [and bad cases, yacc would bark at them]
891: case 't': // lt gt [et nt]
892: result=c=='l'?SLT:c=='g'?SGT:BAD_STRING_COMPARISON_OPERATOR;
893: skip_analized=1;
894: goto break2;
895: case 'e': // le ge ne [ee]
896: result=c=='l'?SLE:c=='g'?SGE:c=='n'?SNE:BAD_STRING_COMPARISON_OPERATOR;
897: skip_analized=1;
898: goto break2;
899: case 'q': // eq [lq gq nq]
900: result=c=='e'?SEQ:BAD_STRING_COMPARISON_OPERATOR;
901: skip_analized=1;
902: goto break2;
903: }
1.67 paf 904: }
905: break;
906: case 'i':
907: if(end==begin) // right after whitespace
1.117 paf 908: if(isspace(PC.source[1])) {
909: switch(PC.source[0]) {
910: case 'n': // in
1.95 paf 911: skip_analized=1;
912: result=IN;
913: goto break2;
1.117 paf 914: case 's': // is
1.95 paf 915: skip_analized=1;
916: result=IS;
917: goto break2;
918: }
1.67 paf 919: }
920: break;
921: case 'd':
922: if(end==begin) // right after whitespace
1.114 paf 923: if(PC.source[0]=='e' && PC.source[1]=='f') { // def
1.67 paf 924: skip_analized=2;
925: result=DEF;
1.58 paf 926: goto break2;
1.50 paf 927: }
1.48 paf 928: break;
929: case ' ': case '\t': case '\n':
1.63 paf 930: if(end!=begin) { // there were a string after previous operator?
931: result=0; // return that string
932: goto break2;
1.48 paf 933: }
1.63 paf 934: // that's a leading|traling space or after-operator-space
935: // ignoring it
936: // reset piece 'begin' position & line
1.114 paf 937: begin=PC.source; // after whitespace char
938: begin_line=PC.line;
1.48 paf 939: continue;
1.1 paf 940: }
941: break;
942:
1.10 paf 943: // VARIABLE GET/PUT/WITH
1.166 parser 944: case LS_VAR_NAME_SIMPLE_WITH_COLON:
945: case LS_VAR_NAME_SIMPLE_WITHOUT_COLON:
946: case LS_EXPRESSION_VAR_NAME_WITH_COLON:
947: case LS_EXPRESSION_VAR_NAME_WITHOUT_COLON:
948: if(
949: PC.ls==LS_EXPRESSION_VAR_NAME_WITH_COLON ||
950: PC.ls==LS_EXPRESSION_VAR_NAME_WITHOUT_COLON) {
1.181 paf 951: // name in expr ends also before
1.48 paf 952: switch(c) {
1.181 paf 953: // expression minus
1.92 paf 954: case '-':
1.181 paf 955: // expression integer division
956: case '\\':
1.48 paf 957: pop_LS(PC);
1.114 paf 958: PC.source--; if(--PC.col<0) { PC.line--; PC.col=-1; }
1.48 paf 959: result=EON;
960: goto break2;
961: }
962: }
1.166 parser 963: if(
964: PC.ls==LS_VAR_NAME_SIMPLE_WITHOUT_COLON ||
965: PC.ls==LS_EXPRESSION_VAR_NAME_WITHOUT_COLON) {
1.142 parser 966: // name already has ':', stop before next
967: switch(c) {
968: case ':':
969: pop_LS(PC);
970: PC.source--; if(--PC.col<0) { PC.line--; PC.col=-1; }
971: result=EON;
972: goto break2;
973: }
974: }
1.48 paf 975: switch(c) {
976: case 0:
977: case ' ': case '\t': case '\n':
978: case ';':
1.126 paf 979: case ']': case '}': case ')':
980: case '"': case '\'':
1.139 parser 981: case '<': case '>': // these stand for HTML brackets AND expression binary ops
1.92 paf 982: case '+': case '*': case '/': case '%':
983: case '&': case '|':
984: case '=': case '!':
1.99 paf 985: // common delimiters
1.158 parser 986: case ',': case '?':
1.139 parser 987: // before call
988: case '^':
1.1 paf 989: pop_LS(PC);
1.114 paf 990: PC.source--; if(--PC.col<0) { PC.line--; PC.col=-1; }
1.13 paf 991: result=EON;
1.1 paf 992: goto break2;
1.48 paf 993: case '[':
1.162 parser 994: // $name.<[>code]
995: if(PC.col>1/*not first column*/ && (
1.163 parser 996: end[-1]=='$'/*was start of get*/ ||
997: end[-1]==':'/*was class name delim */ ||
998: end[-1]=='.'/*was name delim */
1.162 parser 999: )) {
1.166 parser 1000: push_LS(PC, LS_NAME_SQUARE_PART);
1.162 parser 1001: lexical_brackets_nestage=1;
1002: RC;
1003: }
1.114 paf 1004: PC.ls=LS_VAR_SQUARE;
1.1 paf 1005: lexical_brackets_nestage=1;
1.48 paf 1006: RC;
1007: case '{':
1008: if(begin==end) { // ${name}, no need of EON, switching LS
1.114 paf 1009: PC.ls=LS_VAR_NAME_CURLY;
1.48 paf 1010: } else {
1.114 paf 1011: PC.ls=LS_VAR_CURLY;
1.48 paf 1012: lexical_brackets_nestage=1;
1013: }
1.69 paf 1014:
1.48 paf 1015: RC;
1016: case '(':
1.114 paf 1017: PC.ls=LS_VAR_ROUND;
1.1 paf 1018: lexical_brackets_nestage=1;
1.48 paf 1019: RC;
1020: case '.': // name part delim
1021: case '$': // name part subvar
1.160 parser 1022: case ':': // class<:>name
1.166 parser 1023: // go to _WITHOUT_COLON state variant...
1024: if(PC.ls==LS_VAR_NAME_SIMPLE_WITH_COLON)
1025: PC.ls=LS_VAR_NAME_SIMPLE_WITHOUT_COLON;
1026: else if(PC.ls==LS_EXPRESSION_VAR_NAME_WITH_COLON)
1027: PC.ls=LS_EXPRESSION_VAR_NAME_WITHOUT_COLON;
1028: // ...stop before next ':'
1.48 paf 1029: RC;
1.1 paf 1030: }
1031: break;
1.48 paf 1032:
1.1 paf 1033: case LS_VAR_NAME_CURLY:
1.48 paf 1034: switch(c) {
1.162 parser 1035: case '[':
1.166 parser 1036: // ${name.<[>code]}
1037: push_LS(PC, LS_NAME_SQUARE_PART);
1.160 parser 1038: lexical_brackets_nestage=1;
1039: RC;
1.48 paf 1040: case '}': // ${name} finished, restoring LS
1.1 paf 1041: pop_LS(PC);
1.48 paf 1042: RC;
1043: case '.': // name part delim
1044: case '$': // name part subvar
1045: case ':': // ':name' or 'class:name'
1046: RC;
1.1 paf 1047: }
1048: break;
1.48 paf 1049:
1050: case LS_VAR_SQUARE:
1051: switch(c) {
1052: case '$':
1.166 parser 1053: push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1054: RC;
1055: case '^':
1.10 paf 1056: push_LS(PC, LS_METHOD_NAME);
1.48 paf 1057: RC;
1058: case ']':
1.1 paf 1059: if(--lexical_brackets_nestage==0) {
1060: pop_LS(PC);
1.48 paf 1061: RC;
1.1 paf 1062: }
1.48 paf 1063: break;
1064: case ';': // operator_or_fmt;value delim
1065: RC;
1066: case '[':
1067: lexical_brackets_nestage++;
1068: break;
1.1 paf 1069: }
1070: break;
1.48 paf 1071:
1.1 paf 1072: case LS_VAR_CURLY:
1.48 paf 1073: switch(c) {
1074: case '$':
1.166 parser 1075: push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1076: RC;
1077: case '^':
1.10 paf 1078: push_LS(PC, LS_METHOD_NAME);
1.48 paf 1079: RC;
1080: case '}':
1.1 paf 1081: if(--lexical_brackets_nestage==0) {
1082: pop_LS(PC);
1.48 paf 1083: RC;
1.1 paf 1084: }
1.48 paf 1085: break;
1086: case '{':
1.1 paf 1087: lexical_brackets_nestage++;
1.48 paf 1088: break;
1089: }
1.1 paf 1090: break;
1091:
1.10 paf 1092: // METHOD CALL
1.1 paf 1093: case LS_METHOD_NAME:
1.48 paf 1094: switch(c) {
1095: case '[':
1.166 parser 1096: // ^name.<[>code].xxx
1.162 parser 1097: if(PC.col>1/*not first column*/ && (
1.163 parser 1098: end[-1]=='^'/*was start of call*/ || // never, ^[ is literal...
1099: end[-1]==':'/*was class name delim */ ||
1100: end[-1]=='.'/*was name delim */
1.162 parser 1101: )) {
1.166 parser 1102: push_LS(PC, LS_NAME_SQUARE_PART);
1.162 parser 1103: lexical_brackets_nestage=1;
1104: RC;
1105: }
1.114 paf 1106: PC.ls=LS_METHOD_SQUARE;
1.1 paf 1107: lexical_brackets_nestage=1;
1.48 paf 1108: RC;
1109: case '{':
1.114 paf 1110: PC.ls=LS_METHOD_CURLY;
1.1 paf 1111: lexical_brackets_nestage=1;
1.48 paf 1112: RC;
1.69 paf 1113: case '(':
1.114 paf 1114: PC.ls=LS_METHOD_ROUND;
1.69 paf 1115: lexical_brackets_nestage=1;
1116: RC;
1.48 paf 1117: case '.': // name part delim
1118: case '$': // name part subvar
1119: case ':': // ':name' or 'class:name'
1.170 parser 1120: case '^': // ^abc^xxx wrong. bailing out
1121: case ']': case '}': case ')': // ^abc]}) wrong. bailing out
1.48 paf 1122: RC;
1.1 paf 1123: }
1124: break;
1.48 paf 1125:
1126: case LS_METHOD_SQUARE:
1127: switch(c) {
1128: case '$':
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);
1.48 paf 1133: RC;
1134: case ';': // param delim
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_CURLY:
1.48 paf 1149: switch(c) {
1150: case '$':
1.166 parser 1151: push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1152: RC;
1153: case '^':
1.10 paf 1154: push_LS(PC, LS_METHOD_NAME);
1.94 paf 1155: RC;
1156: case ';': // param delim
1.48 paf 1157: RC;
1158: case '}':
1.1 paf 1159: if(--lexical_brackets_nestage==0) {
1.114 paf 1160: PC.ls=LS_METHOD_AFTER;
1.48 paf 1161: RC;
1.1 paf 1162: }
1.48 paf 1163: break;
1164: case '{':
1.1 paf 1165: lexical_brackets_nestage++;
1.48 paf 1166: break;
1167: }
1.1 paf 1168: break;
1.48 paf 1169:
1.1 paf 1170: case LS_METHOD_AFTER:
1.69 paf 1171: if(c=='[') {/* ][ }[ )[ */
1.114 paf 1172: PC.ls=LS_METHOD_SQUARE;
1.1 paf 1173: lexical_brackets_nestage=1;
1.48 paf 1174: RC;
1.1 paf 1175: }
1.69 paf 1176: if(c=='{') {/* ]{ }{ ){ */
1.114 paf 1177: PC.ls=LS_METHOD_CURLY;
1.69 paf 1178: lexical_brackets_nestage=1;
1179: RC;
1180: }
1181: if(c=='(') {/* ]( }( )( */
1.114 paf 1182: PC.ls=LS_METHOD_ROUND;
1.1 paf 1183: lexical_brackets_nestage=1;
1.48 paf 1184: RC;
1.1 paf 1185: }
1186: pop_LS(PC);
1.114 paf 1187: PC.source--; if(--PC.col<0) { PC.line--; PC.col=-1; }
1.13 paf 1188: result=EON;
1.1 paf 1189: goto break2;
1190: }
1.9 paf 1191: if(c==0) {
1.1 paf 1192: result=-1;
1193: break;
1194: }
1195: }
1196:
1197: break2:
1.59 paf 1198: if(end!=begin) { // there is last piece?
1199: if((c=='@' || c==0) && end[-1]=='\n') { // we are before LS_DEF_NAME or EOF?
1200: // strip last \n
1.10 paf 1201: end--;
1.137 parser 1202: if(end!=begin && end[-1]=='\n') // allow one empty line before LS_DEF_NAME
1203: end--;
1.59 paf 1204: }
1.133 parser 1205: if(end!=begin && PC.ls!=LS_COMMENT) { // last piece still alive and not comment?
1.59 paf 1206: // append it
1.121 paf 1207: PC.string->APPEND_CLEAN(begin, end-begin, PC.file, begin_line/*, start_col*/);
1.30 paf 1208: }
1.59 paf 1209: }
1.114 paf 1210: if(PC.string->size()) { // something accumulated?
1.17 paf 1211: // create STRING value: array of OP_VALUE+vstring
1.114 paf 1212: *lvalp=VL(NEW VString(*PC.string));
1.10 paf 1213: // new pieces storage
1.114 paf 1214: PC.string=NEW String(POOL);
1.58 paf 1215: // make current result be pending for next call, return STRING for now
1.114 paf 1216: PC.pending_state=result; result=STRING;
1.58 paf 1217: }
1.67 paf 1218: if(skip_analized) {
1.114 paf 1219: PC.source+=skip_analized; PC.col+=skip_analized;
1.1 paf 1220: }
1.58 paf 1221: return result;
1.1 paf 1222: }
1223:
1.110 paf 1224: static int real_yyerror(parse_control *pc, char *s) { // Called by yyparse on error
1.114 paf 1225: strncpy(PC.error, s, MAX_STRING);
1.1 paf 1226: return 1;
1.110 paf 1227: }
1.1 paf 1228:
1.110 paf 1229: static void yyprint(FILE *file, int type, YYSTYPE value) {
1230: if(type==STRING)
1.120 paf 1231: fprintf(file, " \"%s\"", LA2S(value)->cstr());
1.110 paf 1232: }
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