Annotation of parser3/src/main/compile.y, revision 1.184
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:
1.184 ! paf 8: $Id: compile.y,v 1.183 2002/04/15 06:45:58 paf Exp $
1.88 paf 9: */
10:
1.106 paf 11: /**
12: @todo parser4:
13: - cache compiled code from request to request. to do that...
14: -#: make method definitions, @CLASS, @BASE, @USE instructions,
1.88 paf 15: which would be executed afterwards, and actions
16: now performed at compile time would be delayed to run time.
1.106 paf 17: -#: make cache expiration on time and on disk-change of class source
18: -#: in apache use subpools for compiled class storage
19: -#: in iis make up specialized Pool object for that
1.24 paf 20: */
21:
1.90 paf 22: #define YYSTYPE Array/*<Operation>*/ *
1.9 paf 23: #define YYPARSE_PARAM pc
24: #define YYLEX_PARAM pc
25: #define YYDEBUG 1
1.106 paf 26: #define YYERROR_VERBOSE 1
1.9 paf 27: #define yyerror(msg) real_yyerror((parse_control *)pc, msg)
28: #define YYPRINT(file, type, value) yyprint(file, type, value)
1.1 paf 29:
30: #include "compile_tools.h"
1.8 paf 31: #include "pa_value.h"
1.12 paf 32: #include "pa_request.h"
1.39 paf 33: #include "pa_vobject.h"
1.52 paf 34: #include "pa_vdouble.h"
1.98 paf 35: #include "pa_globals.h"
1.141 parser 36: #include "pa_vvoid.h"
1.39 paf 37:
1.85 paf 38: #define SELF_ELEMENT_NAME "self"
1.97 paf 39: #define USE_CONTROL_METHOD_NAME "USE"
1.1 paf 40:
1.125 paf 41: static int real_yyerror(parse_control *pc, char *s);
1.9 paf 42: static void yyprint(FILE *file, int type, YYSTYPE value);
1.125 paf 43: static int yylex(YYSTYPE *lvalp, void *pc);
1.1 paf 44:
45:
1.8 paf 46: // local convinient inplace typecast & var
1.114 paf 47: #define PC (*(parse_control *)pc)
48: #define POOL (*PC.pool)
1.25 paf 49: #undef NEW
50: #define NEW new(POOL)
1.107 paf 51: #ifndef DOXYGEN
1.1 paf 52: %}
53:
54: %pure_parser
55:
1.13 paf 56: %token EON
1.4 paf 57: %token STRING
1.1 paf 58: %token BOGUS
1.55 paf 59:
1.58 paf 60: %token BAD_STRING_COMPARISON_OPERATOR
1.114 paf 61: %token BAD_HEX_LITERAL
1.171 parser 62: %token BAD_METHOD_DECL_START
1.58 paf 63:
1.59 paf 64: %token LAND "&&"
1.58 paf 65: %token LOR "||"
1.59 paf 66: %token LXOR "##"
1.58 paf 67:
68: %token NLE "<="
69: %token NGE ">="
70: %token NEQ "=="
71: %token NNE "!="
72:
73: %token SLT "lt"
74: %token SGT "gt"
75: %token SLE "le"
76: %token SGE "ge"
77: %token SEQ "eq"
78: %token SNE "ne"
79:
1.67 paf 80: %token DEF "def"
81: %token IN "in"
82: %token FEXISTS "-f"
1.127 paf 83: %token DEXISTS "-d"
1.95 paf 84: %token IS "is"
1.67 paf 85:
1.57 paf 86: /* logical */
1.131 paf 87: %left "##"
1.57 paf 88: %left "||"
89: %left "&&"
1.131 paf 90: %left '<' '>' "<=" ">=" "lt" "gt" "le" "ge"
91: %left "==" "!=" "eq" "ne"
92: %left "is" "def" "in" "-f" "-d"
1.68 paf 93: %left '!'
1.57 paf 94:
95: /* bitwise */
1.59 paf 96: %left '#'
1.131 paf 97: %left '|'
98: %left '&'
1.68 paf 99: %left '~'
1.57 paf 100:
1.56 paf 101: /* numerical */
1.55 paf 102: %left '-' '+'
1.173 paf 103: %left '*' '/' '%' '\\'
1.56 paf 104: %left NEG /* negation: unary - */
1.1 paf 105:
106: %%
1.152 parser 107: all:
1.10 paf 108: one_big_piece {
1.75 paf 109: Method& method=*NEW Method(POOL,
1.85 paf 110: *main_method_name,
1.122 paf 111: Method::CT_ANY,
1.81 paf 112: 0, 0, /*min, max numbered_params_count*/
1.75 paf 113: 0/*param_names*/, 0/*local_names*/,
114: $1/*parser_code*/, 0/*native_code*/);
1.114 paf 115: PC.cclass->add_method(*main_method_name, method);
1.10 paf 116: }
117: | methods;
118:
119: methods: method | methods method;
120: one_big_piece: maybe_codes;
121:
1.34 paf 122: method: control_method | code_method;
123:
124: control_method: '@' STRING '\n'
1.132 paf 125: maybe_control_strings {
1.120 paf 126: const String& command=*LA2S($2);
1.34 paf 127: YYSTYPE strings_code=$4;
1.37 paf 128: if(strings_code->size()<1*2) {
1.114 paf 129: strcpy(PC.error, "@");
130: strcat(PC.error, command.cstr());
131: strcat(PC.error, " is empty");
1.37 paf 132: YYERROR;
133: }
1.74 paf 134: if(command==CLASS_NAME) {
1.146 parser 135: if(PC.cclass->base()) { // already changed from default?
1.114 paf 136: strcpy(PC.error, "class already have a name '");
137: strncat(PC.error, PC.cclass->name().cstr(), 100);
138: strcat(PC.error, "'");
1.73 paf 139: YYERROR;
140: }
141: if(strings_code->size()==1*2) {
142: // new class' name
1.120 paf 143: const String *name=LA2S(strings_code);
1.73 paf 144: // creating the class
1.114 paf 145: PC.cclass=NEW VClass(POOL);
146: PC.cclass->set_name(*name);
1.73 paf 147: // append to request's classes
1.114 paf 148: PC.request->classes().put(*name, PC.cclass);
1.73 paf 149: } else {
1.114 paf 150: strcpy(PC.error, "@"CLASS_NAME" must contain sole name");
1.34 paf 151: YYERROR;
152: }
1.130 paf 153: } else if(command==USE_CONTROL_METHOD_NAME) {
154: for(int i=0; i<strings_code->size(); i+=2)
1.159 parser 155: PC.request->use_file(*LA2S(strings_code, i));
1.130 paf 156: } else if(command==BASE_NAME) {
1.146 parser 157: if(PC.cclass->base()) { // already changed from default?
1.130 paf 158: strcpy(PC.error, "class already have a base '");
159: strncat(PC.error, PC.cclass->base()->name().cstr(), 100);
160: strcat(PC.error, "'");
161: YYERROR;
162: }
163: if(strings_code->size()==1*2) {
164: const String& base_name=*LA2S(strings_code);
165: VClass *base=static_cast<VClass *>(
166: PC.request->classes().get(base_name));
167: if(!base) {
168: strcpy(PC.error, base_name.cstr());
169: strcat(PC.error, ": undefined class in @"BASE_NAME);
1.73 paf 170: YYERROR;
171: }
1.130 paf 172: // @CLASS == @BASE sanity check
173: if(PC.cclass==base) {
174: strcpy(PC.error, "@"CLASS_NAME" equals @"BASE_NAME);
1.45 paf 175: YYERROR;
1.34 paf 176: }
1.130 paf 177: PC.cclass->set_base(*base);
1.34 paf 178: } else {
1.130 paf 179: strcpy(PC.error, "@"BASE_NAME" must contain sole name");
1.34 paf 180: YYERROR;
181: }
1.130 paf 182: } else {
183: strcpy(PC.error, "'");
184: strncat(PC.error, command.cstr(), MAX_STRING/2);
185: strcat(PC.error, "' invalid special name. valid names are "
186: "'"CLASS_NAME"', '"USE_CONTROL_METHOD_NAME"' and '"BASE_NAME"'");
187: YYERROR;
1.34 paf 188: }
189: };
1.132 paf 190: maybe_control_strings: empty | control_strings;
1.37 paf 191: control_strings: control_string | control_strings control_string { $$=$1; P($$, $2) };
192: control_string: maybe_string '\n';
193: maybe_string: empty | STRING;
1.34 paf 194:
195: code_method: '@' STRING bracketed_maybe_strings maybe_bracketed_strings maybe_comment '\n'
1.10 paf 196: maybe_codes {
1.120 paf 197: const String *name=LA2S($2);
1.10 paf 198:
199: YYSTYPE params_names_code=$3;
1.75 paf 200: Array *params_names=0;
201: if(int size=params_names_code->size()) {
202: params_names=NEW Array(POOL);
203: for(int i=0; i<size; i+=2)
1.120 paf 204: *params_names+=LA2S(params_names_code, i);
1.75 paf 205: }
1.10 paf 206:
207: YYSTYPE locals_names_code=$4;
1.75 paf 208: Array *locals_names=0;
209: if(int size=locals_names_code->size()) {
210: locals_names=NEW Array(POOL);
211: for(int i=0; i<size; i+=2)
1.120 paf 212: *locals_names+=LA2S(locals_names_code, i);
1.75 paf 213: }
1.10 paf 214:
1.76 paf 215: Method& method=*NEW Method(POOL,
216: *name,
1.122 paf 217: Method::CT_ANY,
1.81 paf 218: 0, 0/*min,max numbered_params_count*/,
1.76 paf 219: params_names, locals_names,
220: $7, 0);
1.114 paf 221: PC.cclass->add_method(*name, method);
1.8 paf 222: };
1.10 paf 223:
224: maybe_bracketed_strings: empty | bracketed_maybe_strings;
225: bracketed_maybe_strings: '[' maybe_strings ']' {$$=$2};
226: maybe_strings: empty | strings;
227: strings: STRING | strings ';' STRING { $$=$1; P($$, $3) };
228:
229: maybe_comment: empty | STRING;
1.1 paf 230:
231: /* codes */
232:
1.10 paf 233: maybe_codes: empty | codes;
234:
1.90 paf 235: codes: code | codes code { $$=$1; P($$, $2) };
1.81 paf 236: code: write_string | action;
1.149 parser 237: action: get | put | call;
1.1 paf 238:
239: /* get */
240:
1.64 paf 241: get: get_value {
1.184 ! paf 242: $$=$1; /* stack: resulting value */
! 243: changetail_or_append($$,
! 244: OP_GET_ELEMENT, OP_GET_ELEMENT__WRITE,
! 245: OP_WRITE_VALUE
! 246: ); /* value=pop; wcontext.write(value) */
1.1 paf 247: };
1.163 parser 248: get_value: '$' get_name_value { $$=$2 };
1.64 paf 249: get_name_value: name_without_curly_rdive EON | name_in_curly_rdive;
1.1 paf 250: name_in_curly_rdive: '{' name_without_curly_rdive '}' { $$=$2 };
1.44 paf 251: name_without_curly_rdive:
252: name_without_curly_rdive_read
253: | name_without_curly_rdive_class;
1.19 paf 254: name_without_curly_rdive_read: name_without_curly_rdive_code {
1.25 paf 255: $$=N(POOL);
1.22 paf 256: Array *diving_code=$1;
1.120 paf 257: const String *first_name=LA2S(diving_code);
1.179 paf 258: // self.xxx... -> xxx...
259: // OP_VALUE+string+OP_GET_ELEMENT+... -> OP_WITH_SELF+...
1.85 paf 260: if(first_name && *first_name==SELF_ELEMENT_NAME) {
1.54 paf 261: O($$, OP_WITH_SELF); /* stack: starting context */
1.22 paf 262: P($$, diving_code,
263: /* skip over... */
1.179 paf 264: diving_code->size()>=3?3/*OP_VALUE+string+OP_GET_ELEMENTx*/:2/*OP_+string*/);
1.22 paf 265: } else {
1.54 paf 266: O($$, OP_WITH_READ); /* stack: starting context */
1.179 paf 267:
268: // ^if ELEMENT -> ^if ELEMENT_OR_OPERATOR
269: // OP_VALUE+string+OP_GET_ELEMENT. -> OP_VALUE+string+OP_GET_ELEMENT_OR_OPERATOR.
1.180 paf 270: if(PC.in_call_value && diving_code->size()==3)
1.179 paf 271: diving_code->put_int(2, OP_GET_ELEMENT_OR_OPERATOR);
1.22 paf 272: P($$, diving_code);
273: }
274: /* diving code; stack: current context */
1.1 paf 275: };
1.155 parser 276: name_without_curly_rdive_class: class_prefix name_without_curly_rdive_code { $$=$1; P($$, $2) };
1.19 paf 277: name_without_curly_rdive_code: name_advance2 | name_path name_advance2 { $$=$1; P($$, $2) };
1.1 paf 278:
279: /* put */
280:
1.81 paf 281: put: '$' name_expr_wdive construct {
1.20 paf 282: $$=$2; /* stack: context,name */
1.52 paf 283: P($$, $3); /* stack: context,name,constructor_value */
1.20 paf 284: };
1.44 paf 285: name_expr_wdive:
1.157 parser 286: name_expr_wdive_root
287: | name_expr_wdive_write
1.44 paf 288: | name_expr_wdive_class;
1.157 parser 289: name_expr_wdive_root: name_expr_dive_code {
1.44 paf 290: $$=N(POOL);
1.23 paf 291: Array *diving_code=$1;
1.120 paf 292: const String *first_name=LA2S(diving_code);
1.179 paf 293: // $self.xxx... -> $xxx...
294: // OP_VALUE+string+OP_GET_ELEMENT+... -> OP_WITH_SELF+...
1.85 paf 295: if(first_name && *first_name==SELF_ELEMENT_NAME) {
1.54 paf 296: O($$, OP_WITH_SELF); /* stack: starting context */
1.23 paf 297: P($$, diving_code,
298: /* skip over... */
1.179 paf 299: diving_code->size()>=3?3/*OP_VALUE+string+OP_GET_ELEMENTx*/:2/*OP_+string*/);
1.23 paf 300: } else {
1.157 parser 301: O($$, OP_WITH_ROOT); /* stack: starting context */
1.23 paf 302: P($$, diving_code);
303: }
304: /* diving code; stack: current context */
1.156 parser 305: };
1.157 parser 306: name_expr_wdive_write: '.' name_expr_dive_code {
1.156 parser 307: $$=N(POOL);
1.157 parser 308: O($$, OP_WITH_WRITE); /* stack: starting context */
1.156 parser 309: P($$, $2); /* diving code; stack: context,name */
1.20 paf 310: };
1.155 parser 311: name_expr_wdive_class: class_prefix name_expr_dive_code { $$=$1; P($$, $2) };
1.20 paf 312:
1.149 parser 313: construct:
1.163 parser 314: construct_square
315: | construct_round
316: | construct_curly
1.149 parser 317: ;
318: construct_square: '[' any_constructor_code_value ']' {
319: // stack: context, name
320: $$=$2; // stack: context, name, value
1.81 paf 321: O($$, OP_CONSTRUCT_VALUE); /* value=pop; name=pop; context=pop; construct(context,name,value) */
322: }
323: ;
1.149 parser 324: construct_round: '(' expr_value ')' {
1.182 paf 325: $$=N(POOL);
326: O($$, OP_PREPARE_TO_EXPRESSION);
1.149 parser 327: // stack: context, name
1.182 paf 328: P($$, $2); // stack: context, name, value
1.163 parser 329: O($$, OP_CONSTRUCT_EXPR); /* value=pop->as_expr_result; name=pop; context=pop; construct(context,name,value) */
1.81 paf 330: }
1.52 paf 331: ;
1.149 parser 332: construct_curly: '{' maybe_codes '}' {
333: // stack: context, name
334: $$=N(POOL);
335: CCA($$, $2); /* code=pop; name=pop; context=pop; construct(context,name,junction(code)) */
336: };
337:
1.55 paf 338: any_constructor_code_value:
1.157 parser 339: void_value /* optimized $var[] case */
1.52 paf 340: | STRING /* optimized $var[STRING] case */
1.55 paf 341: | constructor_code_value /* $var[something complex] */
1.1 paf 342: ;
1.55 paf 343: constructor_code_value: constructor_code {
1.25 paf 344: $$=N(POOL);
1.183 paf 345: PJP($$, $1); /* stack: empty write context */
346: /* some code that writes to that context */
347: /* context=pop; stack: context.value() */
1.1 paf 348: };
1.55 paf 349: constructor_code: codes__excluding_sole_str_literal;
1.27 paf 350: codes__excluding_sole_str_literal: action | code codes { $$=$1; P($$, $2) };
351:
1.1 paf 352: /* call */
353:
1.66 paf 354: call: call_value {
355: $$=$1; /* stack: value */
1.102 paf 356: O($$, OP_WRITE_VALUE); /* value=pop; wcontext.write(value) */
1.66 paf 357: };
1.177 paf 358: call_value: '^' {
1.180 paf 359: PC.in_call_value=true;
1.177 paf 360: }
361: call_name {
1.180 paf 362: PC.in_call_value=false;
1.177 paf 363: }
1.154 parser 364: store_params EON { /* ^field.$method{vasya} */
365: $$=$3; /* with_xxx,diving code; stack: context,method_junction */
1.54 paf 366: O($$, OP_GET_METHOD_FRAME); /* stack: context,method_frame */
1.123 paf 367:
1.154 parser 368: YYSTYPE params_code=$5;
1.140 parser 369: if(params_code->size()==3) // probably [] case. [OP_VALUE + Void + STORE_PARAM]
1.123 paf 370: if(Value *value=LA2V(params_code)) // it is OP_VALUE + value?
1.140 parser 371: if(!value->is_defined()) // value is VVoid?
1.123 paf 372: params_code=0; // ^zzz[] case. don't append lone empty param.
373: if(params_code)
374: P($$, params_code); // filling method_frame.store_params
1.155 parser 375: O($$, OP_CALL); // method_frame=pop; ncontext=pop; call(ncontext,method_frame) stack: value
1.1 paf 376: };
377:
1.43 paf 378: call_name: name_without_curly_rdive;
1.38 paf 379:
1.9 paf 380: store_params: store_param | store_params store_param { $$=$1; P($$, $2) };
1.69 paf 381: store_param:
382: store_square_param
383: | store_round_param
384: | store_curly_param
1.31 paf 385: ;
1.123 paf 386: store_square_param: '[' store_code_param_parts ']' {$$=$2};
1.69 paf 387: store_round_param: '(' store_expr_param_parts ')' {$$=$2};
1.94 paf 388: store_curly_param: '{' store_curly_param_parts '}' {$$=$2};
1.69 paf 389: store_code_param_parts:
390: store_code_param_part
391: | store_code_param_parts ';' store_code_param_part { $$=$1; P($$, $3) }
392: ;
393: store_expr_param_parts:
394: store_expr_param_part
395: | store_expr_param_parts ';' store_expr_param_part { $$=$1; P($$, $3) }
396: ;
1.94 paf 397: store_curly_param_parts:
398: store_curly_param_part
399: | store_curly_param_parts ';' store_curly_param_part { $$=$1; P($$, $3) }
400: ;
1.120 paf 401: store_code_param_part: code_param_value {
1.32 paf 402: $$=$1;
1.54 paf 403: O($$, OP_STORE_PARAM);
1.120 paf 404: };
1.69 paf 405: store_expr_param_part: write_expr_value {
406: $$=N(POOL);
1.103 paf 407: PEA($$, $1);
1.69 paf 408: };
1.94 paf 409: store_curly_param_part: maybe_codes {
410: $$=N(POOL);
411: PCA($$, $1);
412: };
1.120 paf 413: code_param_value:
1.157 parser 414: void_value /* optimized [;...] case */
1.120 paf 415: | STRING /* optimized [STRING] case */
416: | constructor_code_value /* [something complex] */
417: ;
1.90 paf 418: write_expr_value: expr_value {
1.182 paf 419: $$=N(POOL);
420: O($$, OP_PREPARE_TO_EXPRESSION);
421: P($$, $1);
1.102 paf 422: O($$, OP_WRITE_EXPR_RESULT);
1.69 paf 423: };
1.1 paf 424:
425: /* name */
426:
1.20 paf 427: name_expr_dive_code: name_expr_value | name_path name_expr_value { $$=$1; P($$, $2) };
1.1 paf 428:
1.9 paf 429: name_path: name_step | name_path name_step { $$=$1; P($$, $2) };
1.1 paf 430: name_step: name_advance1 '.';
431: name_advance1: name_expr_value {
1.177 paf 432: // we know that name_advance1 not called from ^xxx context
433: // so we'll not check for operator call possibility as we do in name_advance2
434:
1.1 paf 435: /* stack: context */
436: $$=$1; /* stack: context,name */
1.54 paf 437: O($$, OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */
1.1 paf 438: };
439: name_advance2: name_expr_value {
440: /* stack: context */
441: $$=$1; /* stack: context,name */
1.179 paf 442: O($$, OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */
1.1 paf 443: }
1.4 paf 444: | STRING BOGUS
1.1 paf 445: ;
446: name_expr_value:
1.4 paf 447: STRING /* subname_is_const */
1.1 paf 448: | name_expr_subvar_value /* $subname_is_var_value */
1.160 parser 449: | name_expr_with_subvar_value /* xxx$part_of_subname_is_var_value */
1.166 parser 450: | name_square_code_value /* [codes] */
1.1 paf 451: ;
452: name_expr_subvar_value: '$' subvar_ref_name_rdive {
453: $$=$2;
1.54 paf 454: O($$, OP_GET_ELEMENT);
1.1 paf 455: };
1.4 paf 456: name_expr_with_subvar_value: STRING subvar_get_writes {
1.183 paf 457: Array *code;
458: {
459: change_string_literal_to_write_string_literal(code=$1);
460: P(code, $2);
461: }
1.25 paf 462: $$=N(POOL);
1.183 paf 463: PSP($$, code);
1.1 paf 464: };
1.166 parser 465: name_square_code_value: '[' codes ']' {
1.160 parser 466: $$=N(POOL);
1.183 paf 467: PJP($$, $2); /* stack: empty write context */
468: /* some code that writes to that context */
469: /* context=pop; stack: context.value() */
1.160 parser 470: };
1.154 parser 471: subvar_ref_name_rdive: STRING {
1.25 paf 472: $$=N(POOL);
1.54 paf 473: O($$, OP_WITH_READ);
1.9 paf 474: P($$, $1);
1.1 paf 475: };
1.9 paf 476: subvar_get_writes: subvar__get_write | subvar_get_writes subvar__get_write { $$=$1; P($$, $2) };
1.1 paf 477: subvar__get_write: '$' subvar_ref_name_rdive {
478: $$=$2;
1.54 paf 479: O($$, OP_GET_ELEMENT__WRITE);
1.42 paf 480: };
481:
1.154 parser 482: class_prefix:
483: class_static_prefix
484: | class_constructor_prefix
485: ;
1.155 parser 486: class_static_prefix: STRING ':' {
487: $$=$1; // stack: class name string
488: O($$, OP_GET_CLASS);
489: };
490: class_constructor_prefix: class_static_prefix ':' {
1.154 parser 491: $$=$1;
1.180 paf 492: if(!PC.in_call_value) {
1.154 parser 493: strcpy(PC.error, ":: not allowed here");
494: YYERROR;
495: }
1.155 parser 496: O($$, OP_PREPARE_TO_CONSTRUCT_OBJECT);
1.1 paf 497: };
498:
1.53 paf 499:
1.56 paf 500: /* expr */
1.53 paf 501:
1.81 paf 502: expr_value: expr {
1.182 paf 503: // see OP_PREPARE_TO_EXPRESSION!!
1.81 paf 504: if(($$=$1)->size()==2) // only one string literal in there?
1.62 paf 505: change_string_literal_to_double_literal($$); // make that string literal Double
506: };
1.56 paf 507: expr:
1.62 paf 508: STRING
1.64 paf 509: | get_value
1.66 paf 510: | call_value
1.64 paf 511: | '"' string_inside_quotes_value '"' { $$ = $2; }
1.145 parser 512: | '\'' string_inside_quotes_value '\'' { $$ = $2; }
1.60 paf 513: | '(' expr ')' { $$ = $2; }
514: /* stack: operand // stack: @operand */
515: | '-' expr %prec NEG { $$=$2; O($$, OP_NEG) }
1.166 parser 516: | '+' expr %prec NEG { $$=$2 }
1.68 paf 517: | '~' expr { $$=$2; O($$, OP_INV) }
518: | '!' expr { $$=$2; O($$, OP_NOT) }
519: | "def" expr { $$=$2; O($$, OP_DEF) }
520: | "in" expr { $$=$2; O($$, OP_IN) }
521: | "-f" expr { $$=$2; O($$, OP_FEXISTS) }
1.127 paf 522: | "-d" expr { $$=$2; O($$, OP_DEXISTS) }
1.60 paf 523: /* stack: a,b // stack: a@b */
524: | expr '-' expr { $$=$1; P($$, $3); O($$, OP_SUB) }
525: | expr '+' expr { $$=$1; P($$, $3); O($$, OP_ADD) }
526: | expr '*' expr { $$=$1; P($$, $3); O($$, OP_MUL) }
527: | expr '/' expr { $$=$1; P($$, $3); O($$, OP_DIV) }
528: | expr '%' expr { $$=$1; P($$, $3); O($$, OP_MOD) }
1.173 paf 529: | expr '\\' expr { $$=$1; P($$, $3); O($$, OP_INTDIV) }
1.60 paf 530: | expr '&' expr { $$=$1; P($$, $3); O($$, OP_BIN_AND) }
531: | expr '|' expr { $$=$1; P($$, $3); O($$, OP_BIN_OR) }
532: | expr '#' expr { $$=$1; P($$, $3); O($$, OP_BIN_XOR) }
1.174 paf 533: | expr "&&" expr { $$=$1; PNC($$, $3); O($$, OP_LOG_AND) }
534: | expr "||" expr { $$=$1; PNC($$, $3); O($$, OP_LOG_OR) }
1.60 paf 535: | expr "##" expr { $$=$1; P($$, $3); O($$, OP_LOG_XOR) }
536: | expr '<' expr { $$=$1; P($$, $3); O($$, OP_NUM_LT) }
537: | expr '>' expr { $$=$1; P($$, $3); O($$, OP_NUM_GT) }
538: | expr "<=" expr { $$=$1; P($$, $3); O($$, OP_NUM_LE) }
539: | expr ">=" expr { $$=$1; P($$, $3); O($$, OP_NUM_GE) }
540: | expr "==" expr { $$=$1; P($$, $3); O($$, OP_NUM_EQ) }
541: | expr "!=" expr { $$=$1; P($$, $3); O($$, OP_NUM_NE) }
1.61 paf 542: | expr "lt" expr { $$=$1; P($$, $3); O($$, OP_STR_LT) }
543: | expr "gt" expr { $$=$1; P($$, $3); O($$, OP_STR_GT) }
544: | expr "le" expr { $$=$1; P($$, $3); O($$, OP_STR_LE) }
545: | expr "ge" expr { $$=$1; P($$, $3); O($$, OP_STR_GE) }
546: | expr "eq" expr { $$=$1; P($$, $3); O($$, OP_STR_EQ) }
547: | expr "ne" expr { $$=$1; P($$, $3); O($$, OP_STR_NE) }
1.95 paf 548: | expr "is" expr { $$=$1; P($$, $3); O($$, OP_IS) }
1.56 paf 549: ;
1.55 paf 550:
1.65 paf 551: string_inside_quotes_value: maybe_codes {
1.64 paf 552: $$=N(POOL);
1.183 paf 553: PSP($$, $1); /* stack: empty write context */
554: /* some code that writes to that context */
555: /* context=pop; stack: context.get_string() */
1.53 paf 556: };
1.1 paf 557:
1.27 paf 558: /* basics */
1.1 paf 559:
1.81 paf 560: write_string: STRING {
1.102 paf 561: // optimized from OP_STRING+OP_WRITE_VALUE to OP_STRING__WRITE
1.84 paf 562: change_string_literal_to_write_string_literal($$=$1)
1.54 paf 563: };
564:
1.157 parser 565: void_value: /* empty */ { $$=VL(NEW VVoid(POOL)) };
1.25 paf 566: empty: /* empty */ { $$=N(POOL) };
1.1 paf 567:
568: %%
1.105 paf 569: #endif
1.1 paf 570:
571: /*
572: 000$111(2222)00
573: 000$111{3333}00
1.9 paf 574: $,^: push,=0
1.1 paf 575: 1:( { break=pop
576: 2:( ) pop
577: 3:{ } pop
578:
579: 000^111(2222)4444{33333}4000
1.9 paf 580: $,^: push,=0
1.1 paf 581: 1:( { break=pop
582: 2:( )=4
583: 3:{ }=4
584: 4:[^({]=pop
585: */
586:
1.110 paf 587: static int yylex(YYSTYPE *lvalp, void *pc) {
1.177 paf 588: #define lexical_brackets_nestage PC.brackets_nestages[PC.ls_sp]
1.48 paf 589: #define RC {result=c; goto break2; }
1.1 paf 590:
591: register int c;
592: int result;
593:
1.114 paf 594: if(PC.pending_state) {
595: result=PC.pending_state;
596: PC.pending_state=0;
1.1 paf 597: return result;
598: }
599:
1.114 paf 600: const char *begin=PC.source;
1.91 paf 601: const char *end;
1.114 paf 602: int begin_line=PC.line;
1.67 paf 603: int skip_analized=0;
1.50 paf 604: while(true) {
1.114 paf 605: c=*(end=(PC.source++));
1.166 parser 606: // fprintf(stderr, "\nchar: %c %02X; nestage: %d, sp=%d", c, c, lexical_brackets_nestage, PC.sp);
1.1 paf 607:
1.4 paf 608: if(c=='\n') {
1.114 paf 609: PC.line++;
610: PC.col=0;
1.10 paf 611: } else
1.114 paf 612: PC.col++;
1.73 paf 613:
1.171 parser 614: if(c=='@' && PC.col==0+1) {
1.175 paf 615: if(PC.ls==LS_DEF_SPECIAL_BODY) {
616: // @SPECIAL
617: // ...
618: // @<here =
619: pop_LS(PC); // exiting from LS_DEF_SPECIAL_BODY state
620: } // continuing checks
1.171 parser 621: if(PC.ls==LS_USER) {
622: push_LS(PC, LS_DEF_NAME);
623: RC;
1.175 paf 624: } else // @ in first column inside some code [when could that be?]
1.171 parser 625: result=BAD_METHOD_DECL_START;
626: goto break2;
627: } else if(c=='^')
1.169 parser 628: switch(PC.ls) {
629: case LS_EXPRESSION_VAR_NAME_WITH_COLON:
630: case LS_EXPRESSION_VAR_NAME_WITHOUT_COLON:
631: case LS_VAR_NAME_SIMPLE_WITH_COLON:
632: case LS_VAR_NAME_SIMPLE_WITHOUT_COLON:
633: case LS_VAR_NAME_CURLY:
634: case LS_METHOD_NAME:
635: case LS_COMMENT:
636: case LS_DEF_COMMENT:
637: // no literals in names, please
638: break;
639: default:
1.114 paf 640: switch(*PC.source) {
1.165 parser 641: // ^escaping some punctuators
1.48 paf 642: case '^': case '$': case ';':
1.126 paf 643: case '(': case ')':
1.48 paf 644: case '[': case ']':
645: case '{': case '}':
1.172 parser 646: case '"': case ':':
1.40 paf 647: if(end!=begin) {
648: // append piece till ^
1.121 paf 649: PC.string->APPEND_CLEAN(begin, end-begin, PC.file, begin_line);
1.40 paf 650: }
1.63 paf 651: // reset piece 'begin' position & line
1.164 parser 652: end=begin=PC.source; // ^
1.114 paf 653: begin_line=PC.line;
1.164 parser 654: if(PC.ls==LS_METHOD_AFTER) {
655: pop_LS(PC);
656: result=EON;
1.165 parser 657: skip_analized=-1; // return to ^ afterwards to assure it's literality
1.164 parser 658: goto break2;
659: } else {
660: // skip over _ after ^
661: PC.source++; PC.col++;
662: // skip analysis = forced literal
663: continue;
664: }
1.114 paf 665:
666: // converting ^#HH into char(hex(HH))
667: case '#':
668: if(end!=begin) {
669: // append piece till ^
1.121 paf 670: PC.string->APPEND_CLEAN(begin, end-begin, PC.file, begin_line);
1.114 paf 671: }
672: // #HH ?
673: if(PC.source[0]=='#' && PC.source[1] && PC.source[2]) {
674: char *hex=(char *)POOL.malloc(1);
675: hex[0]=
676: hex_value[(unsigned char)PC.source[1]]*0x10+
677: hex_value[(unsigned char)PC.source[2]];
678: if(hex[0]==0) {
679: result=BAD_HEX_LITERAL;
680: goto break2; // wrong hex value[no ^#00 chars allowed]: bail out
681: }
682: // append char(hex(HH))
1.121 paf 683: PC.string->APPEND_CLEAN(hex, 1, PC.file, begin_line);
1.114 paf 684: // skip over ^#HH
685: PC.source+=3;
686: PC.col+=3;
687: // reset piece 'begin' position & line
688: begin=PC.source; // ^
689: begin_line=PC.line;
690: continue;
691: }
692: break;
1.1 paf 693: }
1.169 parser 694: break;
695: }
1.113 paf 696: // #comment start skipping
1.114 paf 697: if(c=='#' && PC.col==1) {
1.112 paf 698: if(end!=begin) {
699: // append piece till #
1.121 paf 700: PC.string->APPEND_CLEAN(begin, end-begin, PC.file, begin_line);
1.112 paf 701: }
702: // fall into COMMENT lexical state [wait for \n]
703: push_LS(PC, LS_COMMENT);
1.175 paf 704: continue;
1.112 paf 705: }
1.114 paf 706: switch(PC.ls) {
1.10 paf 707:
708: // USER'S = NOT OURS
1.1 paf 709: case LS_USER:
1.166 parser 710: case LS_NAME_SQUARE_PART: // name.[here].xxx
1.153 parser 711: if(PC.trim_bof)
712: switch(c) {
713: case '\n': case ' ': case '\t':
1.152 parser 714: begin=PC.source;
715: begin_line=PC.line;
716: continue; // skip it
1.153 parser 717: default:
718: PC.trim_bof=false;
1.152 parser 719: }
1.48 paf 720: switch(c) {
721: case '$':
1.166 parser 722: push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 723: RC;
724: case '^':
725: push_LS(PC, LS_METHOD_NAME);
726: RC;
1.166 parser 727: case ']':
728: if(PC.ls==LS_NAME_SQUARE_PART)
729: if(--lexical_brackets_nestage==0) {// $name.[co<]?>de<]?>
730: pop_LS(PC); // $name.[co<]>de<]!>
731: RC;
732: }
1.160 parser 733: break;
1.166 parser 734: case '[': // $name.[co<[>de]
735: if(PC.ls==LS_NAME_SQUARE_PART)
736: lexical_brackets_nestage++;
1.161 parser 737: break;
1.112 paf 738: }
739: break;
740:
741: // #COMMENT
742: case LS_COMMENT:
743: if(c=='\n') {
744: // skip comment
1.114 paf 745: begin=PC.source;
746: begin_line=PC.line;
1.112 paf 747:
748: pop_LS(PC);
749: continue;
1.1 paf 750: }
1.48 paf 751: break;
752:
753: // STRING IN EXPRESSION
1.145 parser 754: case LS_EXPRESSION_STRING_QUOTED:
755: case LS_EXPRESSION_STRING_APOSTROFED:
1.48 paf 756: switch(c) {
757: case '"':
1.145 parser 758: case '\'':
759: if(
760: PC.ls == LS_EXPRESSION_STRING_QUOTED && c=='"' ||
761: PC.ls == LS_EXPRESSION_STRING_APOSTROFED && c=='\'') {
762: pop_LS(PC); //"abc". | 'abc'.
763: RC;
764: }
765: break;
1.48 paf 766: case '$':
1.166 parser 767: push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 768: RC;
769: case '^':
1.10 paf 770: push_LS(PC, LS_METHOD_NAME);
1.48 paf 771: RC;
1.10 paf 772: }
773: break;
774:
775: // METHOD DEFINITION
776: case LS_DEF_NAME:
1.48 paf 777: switch(c) {
778: case '[':
1.114 paf 779: PC.ls=LS_DEF_PARAMS;
1.48 paf 780: RC;
781: case '\n':
1.114 paf 782: PC.ls=LS_DEF_SPECIAL_BODY;
1.48 paf 783: RC;
1.10 paf 784: }
785: break;
1.48 paf 786:
1.10 paf 787: case LS_DEF_PARAMS:
1.48 paf 788: switch(c) {
789: case ';':
790: RC;
791: case ']':
1.114 paf 792: PC.ls=*PC.source=='['?LS_DEF_LOCALS:LS_DEF_COMMENT;
1.48 paf 793: RC;
1.49 paf 794: case '\n': // wrong. bailing out
1.10 paf 795: pop_LS(PC);
1.48 paf 796: RC;
1.10 paf 797: }
798: break;
1.48 paf 799:
1.10 paf 800: case LS_DEF_LOCALS:
1.48 paf 801: switch(c) {
802: case '[':
803: case ';':
804: RC;
805: case ']':
1.114 paf 806: PC.ls=LS_DEF_COMMENT;
1.48 paf 807: RC;
808: case '\n': // wrong. bailing out
1.10 paf 809: pop_LS(PC);
1.48 paf 810: RC;
1.10 paf 811: }
812: break;
1.48 paf 813:
1.10 paf 814: case LS_DEF_COMMENT:
815: if(c=='\n') {
816: pop_LS(PC);
1.48 paf 817: RC;
1.37 paf 818: }
819: break;
820:
1.48 paf 821: case LS_DEF_SPECIAL_BODY:
1.175 paf 822: if(c=='\n')
1.48 paf 823: RC;
824: break;
825:
826: // (EXPRESSION)
1.69 paf 827: case LS_VAR_ROUND:
828: case LS_METHOD_ROUND:
1.48 paf 829: switch(c) {
830: case ')':
831: if(--lexical_brackets_nestage==0)
1.114 paf 832: if(PC.ls==LS_METHOD_ROUND) // method round param ended
833: PC.ls=LS_METHOD_AFTER; // look for method end
834: else // PC.ls==LS_VAR_ROUND // variable constructor ended
1.69 paf 835: pop_LS(PC); // return to normal life
1.48 paf 836: RC;
837: case '$':
1.166 parser 838: push_LS(PC, LS_EXPRESSION_VAR_NAME_WITH_COLON);
1.48 paf 839: RC;
840: case '^':
841: push_LS(PC, LS_METHOD_NAME);
842: RC;
843: case '(':
844: lexical_brackets_nestage++;
845: RC;
1.67 paf 846: case '-':
1.127 paf 847: switch(*PC.source) {
848: case 'f': // -f
1.67 paf 849: skip_analized=1;
850: result=FEXISTS;
1.127 paf 851: goto break2;
852: case 'd': // -d
853: skip_analized=1;
854: result=DEXISTS;
855: goto break2;
856: default:
1.67 paf 857: result=c;
1.127 paf 858: goto break2;
859: }
1.67 paf 860: goto break2;
1.173 paf 861: case '+': case '*': case '/': case '%': case '\\':
1.58 paf 862: case '~':
1.48 paf 863: case ';':
864: RC;
1.59 paf 865: case '&': case '|': case '#':
1.114 paf 866: if(*PC.source==c) { // && ||
1.59 paf 867: result=c=='#'?LXOR:c=='&'?LAND:LOR;
1.67 paf 868: skip_analized=1;
1.58 paf 869: } else
870: result=c;
871: goto break2;
872: case '<': case '>': case '=': case '!':
1.114 paf 873: if(*PC.source=='=') { // <= >= == !=
1.67 paf 874: skip_analized=1;
1.58 paf 875: switch(c) {
876: case '<': result=NLE; break;
877: case '>': result=NGE; break;
878: case '=': result=NEQ; break;
879: case '!': result=NNE; break;
880: }
881: } else
882: result=c;
883: goto break2;
1.48 paf 884: case '"':
1.145 parser 885: push_LS(PC, LS_EXPRESSION_STRING_QUOTED);
886: RC;
887: case '\'':
888: push_LS(PC, LS_EXPRESSION_STRING_APOSTROFED);
1.48 paf 889: RC;
1.50 paf 890: case 'l': case 'g': case 'e': case 'n':
1.51 paf 891: if(end==begin) // right after whitespace
1.117 paf 892: if(isspace(PC.source[1])) {
893: switch(*PC.source) {
894: // case '?': // ok [and bad cases, yacc would bark at them]
895: case 't': // lt gt [et nt]
896: result=c=='l'?SLT:c=='g'?SGT:BAD_STRING_COMPARISON_OPERATOR;
897: skip_analized=1;
898: goto break2;
899: case 'e': // le ge ne [ee]
900: result=c=='l'?SLE:c=='g'?SGE:c=='n'?SNE:BAD_STRING_COMPARISON_OPERATOR;
901: skip_analized=1;
902: goto break2;
903: case 'q': // eq [lq gq nq]
904: result=c=='e'?SEQ:BAD_STRING_COMPARISON_OPERATOR;
905: skip_analized=1;
906: goto break2;
907: }
1.67 paf 908: }
909: break;
910: case 'i':
911: if(end==begin) // right after whitespace
1.117 paf 912: if(isspace(PC.source[1])) {
913: switch(PC.source[0]) {
914: case 'n': // in
1.95 paf 915: skip_analized=1;
916: result=IN;
917: goto break2;
1.117 paf 918: case 's': // is
1.95 paf 919: skip_analized=1;
920: result=IS;
921: goto break2;
922: }
1.67 paf 923: }
924: break;
925: case 'd':
926: if(end==begin) // right after whitespace
1.114 paf 927: if(PC.source[0]=='e' && PC.source[1]=='f') { // def
1.67 paf 928: skip_analized=2;
929: result=DEF;
1.58 paf 930: goto break2;
1.50 paf 931: }
1.48 paf 932: break;
933: case ' ': case '\t': case '\n':
1.63 paf 934: if(end!=begin) { // there were a string after previous operator?
935: result=0; // return that string
936: goto break2;
1.48 paf 937: }
1.63 paf 938: // that's a leading|traling space or after-operator-space
939: // ignoring it
940: // reset piece 'begin' position & line
1.114 paf 941: begin=PC.source; // after whitespace char
942: begin_line=PC.line;
1.48 paf 943: continue;
1.1 paf 944: }
945: break;
946:
1.10 paf 947: // VARIABLE GET/PUT/WITH
1.166 parser 948: case LS_VAR_NAME_SIMPLE_WITH_COLON:
949: case LS_VAR_NAME_SIMPLE_WITHOUT_COLON:
950: case LS_EXPRESSION_VAR_NAME_WITH_COLON:
951: case LS_EXPRESSION_VAR_NAME_WITHOUT_COLON:
952: if(
953: PC.ls==LS_EXPRESSION_VAR_NAME_WITH_COLON ||
954: PC.ls==LS_EXPRESSION_VAR_NAME_WITHOUT_COLON) {
1.181 paf 955: // name in expr ends also before
1.48 paf 956: switch(c) {
1.181 paf 957: // expression minus
1.92 paf 958: case '-':
1.181 paf 959: // expression integer division
960: case '\\':
1.48 paf 961: pop_LS(PC);
1.114 paf 962: PC.source--; if(--PC.col<0) { PC.line--; PC.col=-1; }
1.48 paf 963: result=EON;
964: goto break2;
965: }
966: }
1.166 parser 967: if(
968: PC.ls==LS_VAR_NAME_SIMPLE_WITHOUT_COLON ||
969: PC.ls==LS_EXPRESSION_VAR_NAME_WITHOUT_COLON) {
1.142 parser 970: // name already has ':', stop before next
971: switch(c) {
972: case ':':
973: pop_LS(PC);
974: PC.source--; if(--PC.col<0) { PC.line--; PC.col=-1; }
975: result=EON;
976: goto break2;
977: }
978: }
1.48 paf 979: switch(c) {
980: case 0:
981: case ' ': case '\t': case '\n':
982: case ';':
1.126 paf 983: case ']': case '}': case ')':
984: case '"': case '\'':
1.139 parser 985: case '<': case '>': // these stand for HTML brackets AND expression binary ops
1.92 paf 986: case '+': case '*': case '/': case '%':
987: case '&': case '|':
988: case '=': case '!':
1.99 paf 989: // common delimiters
1.158 parser 990: case ',': case '?':
1.139 parser 991: // before call
992: case '^':
1.1 paf 993: pop_LS(PC);
1.114 paf 994: PC.source--; if(--PC.col<0) { PC.line--; PC.col=-1; }
1.13 paf 995: result=EON;
1.1 paf 996: goto break2;
1.48 paf 997: case '[':
1.162 parser 998: // $name.<[>code]
999: if(PC.col>1/*not first column*/ && (
1.163 parser 1000: end[-1]=='$'/*was start of get*/ ||
1001: end[-1]==':'/*was class name delim */ ||
1002: end[-1]=='.'/*was name delim */
1.162 parser 1003: )) {
1.166 parser 1004: push_LS(PC, LS_NAME_SQUARE_PART);
1.162 parser 1005: lexical_brackets_nestage=1;
1006: RC;
1007: }
1.114 paf 1008: PC.ls=LS_VAR_SQUARE;
1.1 paf 1009: lexical_brackets_nestage=1;
1.48 paf 1010: RC;
1011: case '{':
1012: if(begin==end) { // ${name}, no need of EON, switching LS
1.114 paf 1013: PC.ls=LS_VAR_NAME_CURLY;
1.48 paf 1014: } else {
1.114 paf 1015: PC.ls=LS_VAR_CURLY;
1.48 paf 1016: lexical_brackets_nestage=1;
1017: }
1.69 paf 1018:
1.48 paf 1019: RC;
1020: case '(':
1.114 paf 1021: PC.ls=LS_VAR_ROUND;
1.1 paf 1022: lexical_brackets_nestage=1;
1.48 paf 1023: RC;
1024: case '.': // name part delim
1025: case '$': // name part subvar
1.160 parser 1026: case ':': // class<:>name
1.166 parser 1027: // go to _WITHOUT_COLON state variant...
1028: if(PC.ls==LS_VAR_NAME_SIMPLE_WITH_COLON)
1029: PC.ls=LS_VAR_NAME_SIMPLE_WITHOUT_COLON;
1030: else if(PC.ls==LS_EXPRESSION_VAR_NAME_WITH_COLON)
1031: PC.ls=LS_EXPRESSION_VAR_NAME_WITHOUT_COLON;
1032: // ...stop before next ':'
1.48 paf 1033: RC;
1.1 paf 1034: }
1035: break;
1.48 paf 1036:
1.1 paf 1037: case LS_VAR_NAME_CURLY:
1.48 paf 1038: switch(c) {
1.162 parser 1039: case '[':
1.166 parser 1040: // ${name.<[>code]}
1041: push_LS(PC, LS_NAME_SQUARE_PART);
1.160 parser 1042: lexical_brackets_nestage=1;
1043: RC;
1.48 paf 1044: case '}': // ${name} finished, restoring LS
1.1 paf 1045: pop_LS(PC);
1.48 paf 1046: RC;
1047: case '.': // name part delim
1048: case '$': // name part subvar
1049: case ':': // ':name' or 'class:name'
1050: RC;
1.1 paf 1051: }
1052: break;
1.48 paf 1053:
1054: case LS_VAR_SQUARE:
1055: switch(c) {
1056: case '$':
1.166 parser 1057: push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1058: RC;
1059: case '^':
1.10 paf 1060: push_LS(PC, LS_METHOD_NAME);
1.48 paf 1061: RC;
1062: case ']':
1.1 paf 1063: if(--lexical_brackets_nestage==0) {
1064: pop_LS(PC);
1.48 paf 1065: RC;
1.1 paf 1066: }
1.48 paf 1067: break;
1068: case ';': // operator_or_fmt;value delim
1069: RC;
1070: case '[':
1071: lexical_brackets_nestage++;
1072: break;
1.1 paf 1073: }
1074: break;
1.48 paf 1075:
1.1 paf 1076: case LS_VAR_CURLY:
1.48 paf 1077: switch(c) {
1078: case '$':
1.166 parser 1079: push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1080: RC;
1081: case '^':
1.10 paf 1082: push_LS(PC, LS_METHOD_NAME);
1.48 paf 1083: RC;
1084: case '}':
1.1 paf 1085: if(--lexical_brackets_nestage==0) {
1086: pop_LS(PC);
1.48 paf 1087: RC;
1.1 paf 1088: }
1.48 paf 1089: break;
1090: case '{':
1.1 paf 1091: lexical_brackets_nestage++;
1.48 paf 1092: break;
1093: }
1.1 paf 1094: break;
1095:
1.10 paf 1096: // METHOD CALL
1.1 paf 1097: case LS_METHOD_NAME:
1.48 paf 1098: switch(c) {
1099: case '[':
1.166 parser 1100: // ^name.<[>code].xxx
1.162 parser 1101: if(PC.col>1/*not first column*/ && (
1.163 parser 1102: end[-1]=='^'/*was start of call*/ || // never, ^[ is literal...
1103: end[-1]==':'/*was class name delim */ ||
1104: end[-1]=='.'/*was name delim */
1.162 parser 1105: )) {
1.166 parser 1106: push_LS(PC, LS_NAME_SQUARE_PART);
1.162 parser 1107: lexical_brackets_nestage=1;
1108: RC;
1109: }
1.114 paf 1110: PC.ls=LS_METHOD_SQUARE;
1.1 paf 1111: lexical_brackets_nestage=1;
1.48 paf 1112: RC;
1113: case '{':
1.114 paf 1114: PC.ls=LS_METHOD_CURLY;
1.1 paf 1115: lexical_brackets_nestage=1;
1.48 paf 1116: RC;
1.69 paf 1117: case '(':
1.114 paf 1118: PC.ls=LS_METHOD_ROUND;
1.69 paf 1119: lexical_brackets_nestage=1;
1120: RC;
1.48 paf 1121: case '.': // name part delim
1122: case '$': // name part subvar
1123: case ':': // ':name' or 'class:name'
1.170 parser 1124: case '^': // ^abc^xxx wrong. bailing out
1125: case ']': case '}': case ')': // ^abc]}) wrong. bailing out
1.48 paf 1126: RC;
1.1 paf 1127: }
1128: break;
1.48 paf 1129:
1130: case LS_METHOD_SQUARE:
1131: switch(c) {
1132: case '$':
1.166 parser 1133: push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1134: RC;
1135: case '^':
1.10 paf 1136: push_LS(PC, LS_METHOD_NAME);
1.48 paf 1137: RC;
1138: case ';': // param delim
1139: RC;
1140: case ']':
1.1 paf 1141: if(--lexical_brackets_nestage==0) {
1.114 paf 1142: PC.ls=LS_METHOD_AFTER;
1.48 paf 1143: RC;
1.1 paf 1144: }
1.48 paf 1145: break;
1146: case '[':
1.1 paf 1147: lexical_brackets_nestage++;
1.48 paf 1148: break;
1149: }
1.1 paf 1150: break;
1.48 paf 1151:
1.1 paf 1152: case LS_METHOD_CURLY:
1.48 paf 1153: switch(c) {
1154: case '$':
1.166 parser 1155: push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON);
1.48 paf 1156: RC;
1157: case '^':
1.10 paf 1158: push_LS(PC, LS_METHOD_NAME);
1.94 paf 1159: RC;
1160: case ';': // param delim
1.48 paf 1161: RC;
1162: case '}':
1.1 paf 1163: if(--lexical_brackets_nestage==0) {
1.114 paf 1164: PC.ls=LS_METHOD_AFTER;
1.48 paf 1165: RC;
1.1 paf 1166: }
1.48 paf 1167: break;
1168: case '{':
1.1 paf 1169: lexical_brackets_nestage++;
1.48 paf 1170: break;
1171: }
1.1 paf 1172: break;
1.48 paf 1173:
1.1 paf 1174: case LS_METHOD_AFTER:
1.69 paf 1175: if(c=='[') {/* ][ }[ )[ */
1.114 paf 1176: PC.ls=LS_METHOD_SQUARE;
1.1 paf 1177: lexical_brackets_nestage=1;
1.48 paf 1178: RC;
1.1 paf 1179: }
1.69 paf 1180: if(c=='{') {/* ]{ }{ ){ */
1.114 paf 1181: PC.ls=LS_METHOD_CURLY;
1.69 paf 1182: lexical_brackets_nestage=1;
1183: RC;
1184: }
1185: if(c=='(') {/* ]( }( )( */
1.114 paf 1186: PC.ls=LS_METHOD_ROUND;
1.1 paf 1187: lexical_brackets_nestage=1;
1.48 paf 1188: RC;
1.1 paf 1189: }
1190: pop_LS(PC);
1.114 paf 1191: PC.source--; if(--PC.col<0) { PC.line--; PC.col=-1; }
1.13 paf 1192: result=EON;
1.1 paf 1193: goto break2;
1194: }
1.9 paf 1195: if(c==0) {
1.1 paf 1196: result=-1;
1197: break;
1198: }
1199: }
1200:
1201: break2:
1.59 paf 1202: if(end!=begin) { // there is last piece?
1203: if((c=='@' || c==0) && end[-1]=='\n') { // we are before LS_DEF_NAME or EOF?
1204: // strip last \n
1.10 paf 1205: end--;
1.137 parser 1206: if(end!=begin && end[-1]=='\n') // allow one empty line before LS_DEF_NAME
1207: end--;
1.59 paf 1208: }
1.133 parser 1209: if(end!=begin && PC.ls!=LS_COMMENT) { // last piece still alive and not comment?
1.59 paf 1210: // append it
1.121 paf 1211: PC.string->APPEND_CLEAN(begin, end-begin, PC.file, begin_line/*, start_col*/);
1.30 paf 1212: }
1.59 paf 1213: }
1.114 paf 1214: if(PC.string->size()) { // something accumulated?
1.17 paf 1215: // create STRING value: array of OP_VALUE+vstring
1.114 paf 1216: *lvalp=VL(NEW VString(*PC.string));
1.10 paf 1217: // new pieces storage
1.114 paf 1218: PC.string=NEW String(POOL);
1.58 paf 1219: // make current result be pending for next call, return STRING for now
1.114 paf 1220: PC.pending_state=result; result=STRING;
1.58 paf 1221: }
1.67 paf 1222: if(skip_analized) {
1.114 paf 1223: PC.source+=skip_analized; PC.col+=skip_analized;
1.1 paf 1224: }
1.58 paf 1225: return result;
1.1 paf 1226: }
1227:
1.110 paf 1228: static int real_yyerror(parse_control *pc, char *s) { // Called by yyparse on error
1.114 paf 1229: strncpy(PC.error, s, MAX_STRING);
1.1 paf 1230: return 1;
1.110 paf 1231: }
1.1 paf 1232:
1.110 paf 1233: static void yyprint(FILE *file, int type, YYSTYPE value) {
1234: if(type==STRING)
1.120 paf 1235: fprintf(file, " \"%s\"", LA2S(value)->cstr());
1.110 paf 1236: }
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