Annotation of parser3/src/main/compile.y, revision 1.156
1.105 paf 1: /** @file
1.106 paf 2: Parser: compiler(lexical parser and grammar).
3:
1.87 paf 4: Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com)
1.106 paf 5:
1.89 paf 6: Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf)
1.88 paf 7: */
1.144 parser 8: %{
1.156 ! parser 9: static char *RCSId="$Id: compile.y,v 1.155 2001/07/26 12:25:37 parser Exp $";
1.88 paf 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)
154: PC.request->use_file(
155: PC.request->absolute(*LA2S(strings_code, i)));
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($$, OP_WRITE_VALUE); /* value=pop; wcontext.write(value) */
1.1 paf 244: };
1.64 paf 245: get_value: '$' get_name_value { $$=$2 }
246: get_name_value: name_without_curly_rdive EON | name_in_curly_rdive;
1.1 paf 247: name_in_curly_rdive: '{' name_without_curly_rdive '}' { $$=$2 };
1.44 paf 248: name_without_curly_rdive:
249: name_without_curly_rdive_read
250: | name_without_curly_rdive_class;
1.19 paf 251: name_without_curly_rdive_read: name_without_curly_rdive_code {
1.25 paf 252: $$=N(POOL);
1.22 paf 253: Array *diving_code=$1;
1.120 paf 254: const String *first_name=LA2S(diving_code);
1.85 paf 255: if(first_name && *first_name==SELF_ELEMENT_NAME) {
1.54 paf 256: O($$, OP_WITH_SELF); /* stack: starting context */
1.22 paf 257: P($$, diving_code,
258: /* skip over... */
259: diving_code->size()>2?3/*OP_+string+get_element*/:2/*OP_+string*/);
260: } else {
1.54 paf 261: O($$, OP_WITH_READ); /* stack: starting context */
1.22 paf 262: P($$, diving_code);
263: }
264: /* diving code; stack: current context */
1.1 paf 265: };
1.155 parser 266: name_without_curly_rdive_class: class_prefix name_without_curly_rdive_code { $$=$1; P($$, $2) };
1.19 paf 267: name_without_curly_rdive_code: name_advance2 | name_path name_advance2 { $$=$1; P($$, $2) };
1.1 paf 268:
269: /* put */
270:
1.81 paf 271: put: '$' name_expr_wdive construct {
1.20 paf 272: $$=$2; /* stack: context,name */
1.52 paf 273: P($$, $3); /* stack: context,name,constructor_value */
1.20 paf 274: };
1.44 paf 275: name_expr_wdive:
276: name_expr_wdive_write
1.156 ! parser 277: | name_expr_wdive_root
1.44 paf 278: | name_expr_wdive_class;
1.28 paf 279: name_expr_wdive_write: name_expr_dive_code {
1.44 paf 280: $$=N(POOL);
1.23 paf 281: Array *diving_code=$1;
1.120 paf 282: const String *first_name=LA2S(diving_code);
1.85 paf 283: if(first_name && *first_name==SELF_ELEMENT_NAME) {
1.54 paf 284: O($$, OP_WITH_SELF); /* stack: starting context */
1.23 paf 285: P($$, diving_code,
286: /* skip over... */
287: diving_code->size()>2?3/*OP_+string+get_element*/:2/*OP_+string*/);
288: } else {
1.54 paf 289: O($$, OP_WITH_WRITE); /* stack: starting context */
1.23 paf 290: P($$, diving_code);
291: }
292: /* diving code; stack: current context */
1.156 ! parser 293: };
! 294: name_expr_wdive_root: ':' name_expr_dive_code {
! 295: $$=N(POOL);
! 296: O($$, OP_WITH_ROOT); /* stack: starting context */
! 297: P($$, $2); /* diving code; stack: context,name */
1.20 paf 298: };
1.155 parser 299: name_expr_wdive_class: class_prefix name_expr_dive_code { $$=$1; P($$, $2) };
1.20 paf 300:
1.149 parser 301: construct:
302: construct_square |
303: construct_round |
304: construct_curly
305: ;
306: construct_square: '[' any_constructor_code_value ']' {
307: // stack: context, name
308: $$=$2; // stack: context, name, value
1.81 paf 309: O($$, OP_CONSTRUCT_VALUE); /* value=pop; name=pop; context=pop; construct(context,name,value) */
310: }
311: ;
1.149 parser 312: construct_round: '(' expr_value ')' {
313: // stack: context, name
314: $$=$2; // stack: context, name, value
1.81 paf 315: O($$, OP_CONSTRUCT_EXPR); /* value=pop; name=pop; context=pop; construct(context,name,value) */
316: }
1.52 paf 317: ;
1.149 parser 318: construct_curly: '{' maybe_codes '}' {
319: // stack: context, name
320: $$=N(POOL);
321: CCA($$, $2); /* code=pop; name=pop; context=pop; construct(context,name,junction(code)) */
322: };
323:
1.55 paf 324: any_constructor_code_value:
1.151 parser 325: empty_string_value /* optimized $var[] case */
1.52 paf 326: | STRING /* optimized $var[STRING] case */
1.55 paf 327: | constructor_code_value /* $var[something complex] */
1.1 paf 328: ;
1.55 paf 329: constructor_code_value: constructor_code {
1.25 paf 330: $$=N(POOL);
1.54 paf 331: O($$, OP_CREATE_EWPOOL); /* stack: empty write context */
1.69 paf 332: P($$, $1); /* some code that writes to that context */
1.54 paf 333: O($$, OP_REDUCE_EWPOOL); /* context=pop; stack: context.value() */
1.1 paf 334: };
1.55 paf 335: constructor_code: codes__excluding_sole_str_literal;
1.27 paf 336: codes__excluding_sole_str_literal: action | code codes { $$=$1; P($$, $2) };
337:
1.1 paf 338: /* call */
339:
1.66 paf 340: call: call_value {
341: $$=$1; /* stack: value */
1.102 paf 342: O($$, OP_WRITE_VALUE); /* value=pop; wcontext.write(value) */
1.66 paf 343: };
1.154 parser 344: call_value: '^' { PC.object_constructor_allowed=true }
345: call_name { PC.object_constructor_allowed=false }
346: store_params EON { /* ^field.$method{vasya} */
347: $$=$3; /* with_xxx,diving code; stack: context,method_junction */
1.54 paf 348: O($$, OP_GET_METHOD_FRAME); /* stack: context,method_frame */
1.123 paf 349:
1.154 parser 350: YYSTYPE params_code=$5;
1.140 parser 351: if(params_code->size()==3) // probably [] case. [OP_VALUE + Void + STORE_PARAM]
1.123 paf 352: if(Value *value=LA2V(params_code)) // it is OP_VALUE + value?
1.140 parser 353: if(!value->is_defined()) // value is VVoid?
1.123 paf 354: params_code=0; // ^zzz[] case. don't append lone empty param.
355: if(params_code)
356: P($$, params_code); // filling method_frame.store_params
1.155 parser 357: O($$, OP_CALL); // method_frame=pop; ncontext=pop; call(ncontext,method_frame) stack: value
1.1 paf 358: };
359:
1.43 paf 360: call_name: name_without_curly_rdive;
1.38 paf 361:
1.9 paf 362: store_params: store_param | store_params store_param { $$=$1; P($$, $2) };
1.69 paf 363: store_param:
364: store_square_param
365: | store_round_param
366: | store_curly_param
1.31 paf 367: ;
1.123 paf 368: store_square_param: '[' store_code_param_parts ']' {$$=$2};
1.69 paf 369: store_round_param: '(' store_expr_param_parts ')' {$$=$2};
1.94 paf 370: store_curly_param: '{' store_curly_param_parts '}' {$$=$2};
1.69 paf 371: store_code_param_parts:
372: store_code_param_part
373: | store_code_param_parts ';' store_code_param_part { $$=$1; P($$, $3) }
374: ;
375: store_expr_param_parts:
376: store_expr_param_part
377: | store_expr_param_parts ';' store_expr_param_part { $$=$1; P($$, $3) }
378: ;
1.94 paf 379: store_curly_param_parts:
380: store_curly_param_part
381: | store_curly_param_parts ';' store_curly_param_part { $$=$1; P($$, $3) }
382: ;
1.120 paf 383: store_code_param_part: code_param_value {
1.32 paf 384: $$=$1;
1.54 paf 385: O($$, OP_STORE_PARAM);
1.120 paf 386: };
1.69 paf 387: store_expr_param_part: write_expr_value {
388: $$=N(POOL);
1.103 paf 389: PEA($$, $1);
1.69 paf 390: };
1.94 paf 391: store_curly_param_part: maybe_codes {
392: $$=N(POOL);
393: PCA($$, $1);
394: };
1.120 paf 395: code_param_value:
1.151 parser 396: empty_void_value /* optimized [;...] case */
1.120 paf 397: | STRING /* optimized [STRING] case */
398: | constructor_code_value /* [something complex] */
399: ;
1.90 paf 400: write_expr_value: expr_value {
1.69 paf 401: $$=$1;
1.102 paf 402: O($$, OP_WRITE_EXPR_RESULT);
1.69 paf 403: };
1.1 paf 404:
405: /* name */
406:
1.20 paf 407: name_expr_dive_code: name_expr_value | name_path name_expr_value { $$=$1; P($$, $2) };
1.1 paf 408:
1.9 paf 409: name_path: name_step | name_path name_step { $$=$1; P($$, $2) };
1.1 paf 410: name_step: name_advance1 '.';
411: name_advance1: name_expr_value {
412: /* stack: context */
413: $$=$1; /* stack: context,name */
1.54 paf 414: O($$, OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */
1.1 paf 415: };
416: name_advance2: name_expr_value {
417: /* stack: context */
418: $$=$1; /* stack: context,name */
1.54 paf 419: O($$, OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */
1.1 paf 420: }
1.4 paf 421: | STRING BOGUS
1.1 paf 422: ;
423: name_expr_value:
1.4 paf 424: STRING /* subname_is_const */
1.1 paf 425: | name_expr_subvar_value /* $subname_is_var_value */
426: | name_expr_with_subvar_value /* xxx$part_of_subname_is_var_value[$...] */
427: ;
428: name_expr_subvar_value: '$' subvar_ref_name_rdive {
429: $$=$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($$, OP_REDUCE_EWPOOL);
1.1 paf 439: };
1.154 parser 440: subvar_ref_name_rdive: STRING {
1.25 paf 441: $$=N(POOL);
1.54 paf 442: O($$, OP_WITH_READ);
1.9 paf 443: P($$, $1);
1.1 paf 444: };
1.9 paf 445: subvar_get_writes: subvar__get_write | subvar_get_writes subvar__get_write { $$=$1; P($$, $2) };
1.1 paf 446: subvar__get_write: '$' subvar_ref_name_rdive {
447: $$=$2;
1.54 paf 448: O($$, OP_GET_ELEMENT__WRITE);
1.42 paf 449: };
450:
1.154 parser 451: class_prefix:
452: class_static_prefix
453: | class_constructor_prefix
454: ;
1.155 parser 455: class_static_prefix: STRING ':' {
456: $$=$1; // stack: class name string
457: O($$, OP_GET_CLASS);
458: };
459: class_constructor_prefix: class_static_prefix ':' {
1.154 parser 460: $$=$1;
461: if(!PC.object_constructor_allowed) {
462: strcpy(PC.error, ":: not allowed here");
463: YYERROR;
464: }
1.155 parser 465: O($$, OP_PREPARE_TO_CONSTRUCT_OBJECT);
1.1 paf 466: };
467:
1.53 paf 468:
1.56 paf 469: /* expr */
1.53 paf 470:
1.81 paf 471: expr_value: expr {
472: if(($$=$1)->size()==2) // only one string literal in there?
1.62 paf 473: change_string_literal_to_double_literal($$); // make that string literal Double
474: };
1.56 paf 475: expr:
1.62 paf 476: STRING
1.64 paf 477: | get_value
1.66 paf 478: | call_value
1.64 paf 479: | '"' string_inside_quotes_value '"' { $$ = $2; }
1.145 parser 480: | '\'' string_inside_quotes_value '\'' { $$ = $2; }
1.60 paf 481: | '(' expr ')' { $$ = $2; }
482: /* stack: operand // stack: @operand */
483: | '-' expr %prec NEG { $$=$2; O($$, OP_NEG) }
1.68 paf 484: | '~' expr { $$=$2; O($$, OP_INV) }
485: | '!' expr { $$=$2; O($$, OP_NOT) }
486: | "def" expr { $$=$2; O($$, OP_DEF) }
487: | "in" expr { $$=$2; O($$, OP_IN) }
488: | "-f" expr { $$=$2; O($$, OP_FEXISTS) }
1.127 paf 489: | "-d" expr { $$=$2; O($$, OP_DEXISTS) }
1.60 paf 490: /* stack: a,b // stack: a@b */
491: | expr '-' expr { $$=$1; P($$, $3); O($$, OP_SUB) }
492: | expr '+' expr { $$=$1; P($$, $3); O($$, OP_ADD) }
493: | expr '*' expr { $$=$1; P($$, $3); O($$, OP_MUL) }
494: | expr '/' expr { $$=$1; P($$, $3); O($$, OP_DIV) }
495: | expr '%' expr { $$=$1; P($$, $3); O($$, OP_MOD) }
496: | expr '&' expr { $$=$1; P($$, $3); O($$, OP_BIN_AND) }
497: | expr '|' expr { $$=$1; P($$, $3); O($$, OP_BIN_OR) }
498: | expr '#' expr { $$=$1; P($$, $3); O($$, OP_BIN_XOR) }
499: | expr "&&" expr { $$=$1; P($$, $3); O($$, OP_LOG_AND) }
500: | expr "||" expr { $$=$1; P($$, $3); O($$, OP_LOG_OR) }
501: | expr "##" expr { $$=$1; P($$, $3); O($$, OP_LOG_XOR) }
502: | expr '<' expr { $$=$1; P($$, $3); O($$, OP_NUM_LT) }
503: | expr '>' expr { $$=$1; P($$, $3); O($$, OP_NUM_GT) }
504: | expr "<=" expr { $$=$1; P($$, $3); O($$, OP_NUM_LE) }
505: | expr ">=" expr { $$=$1; P($$, $3); O($$, OP_NUM_GE) }
506: | expr "==" expr { $$=$1; P($$, $3); O($$, OP_NUM_EQ) }
507: | expr "!=" expr { $$=$1; P($$, $3); O($$, OP_NUM_NE) }
1.61 paf 508: | expr "lt" expr { $$=$1; P($$, $3); O($$, OP_STR_LT) }
509: | expr "gt" expr { $$=$1; P($$, $3); O($$, OP_STR_GT) }
510: | expr "le" expr { $$=$1; P($$, $3); O($$, OP_STR_LE) }
511: | expr "ge" expr { $$=$1; P($$, $3); O($$, OP_STR_GE) }
512: | expr "eq" expr { $$=$1; P($$, $3); O($$, OP_STR_EQ) }
513: | expr "ne" expr { $$=$1; P($$, $3); O($$, OP_STR_NE) }
1.95 paf 514: | expr "is" expr { $$=$1; P($$, $3); O($$, OP_IS) }
1.56 paf 515: ;
1.55 paf 516:
1.65 paf 517: string_inside_quotes_value: maybe_codes {
1.64 paf 518: $$=N(POOL);
519: O($$, OP_CREATE_SWPOOL); /* stack: empty write context */
1.69 paf 520: P($$, $1); /* some code that writes to that context */
1.64 paf 521: O($$, OP_REDUCE_SWPOOL); /* context=pop; stack: context.get_string() */
1.53 paf 522: };
1.1 paf 523:
1.27 paf 524: /* basics */
1.1 paf 525:
1.81 paf 526: write_string: STRING {
1.102 paf 527: // optimized from OP_STRING+OP_WRITE_VALUE to OP_STRING__WRITE
1.84 paf 528: change_string_literal_to_write_string_literal($$=$1)
1.54 paf 529: };
530:
1.151 parser 531: empty_void_value: /* empty */ { $$=VL(NEW VVoid(POOL)) };
532: empty_string_value: /* empty */ { $$=VL(NEW VString(POOL)) };
1.25 paf 533: empty: /* empty */ { $$=N(POOL) };
1.1 paf 534:
535: %%
1.105 paf 536: #endif
1.1 paf 537:
538: /*
539: 000$111(2222)00
540: 000$111{3333}00
1.9 paf 541: $,^: push,=0
1.1 paf 542: 1:( { break=pop
543: 2:( ) pop
544: 3:{ } pop
545:
546: 000^111(2222)4444{33333}4000
1.9 paf 547: $,^: push,=0
1.1 paf 548: 1:( { break=pop
549: 2:( )=4
550: 3:{ }=4
551: 4:[^({]=pop
552: */
553:
1.110 paf 554: static int yylex(YYSTYPE *lvalp, void *pc) {
1.114 paf 555: #define lexical_brackets_nestage PC.brackets_nestages[PC.sp]
1.48 paf 556: #define RC {result=c; goto break2; }
1.1 paf 557:
558: register int c;
559: int result;
560:
1.114 paf 561: if(PC.pending_state) {
562: result=PC.pending_state;
563: PC.pending_state=0;
1.1 paf 564: return result;
565: }
566:
1.114 paf 567: const char *begin=PC.source;
1.91 paf 568: const char *end;
1.114 paf 569: int begin_line=PC.line;
1.67 paf 570: int skip_analized=0;
1.50 paf 571: while(true) {
1.114 paf 572: c=*(end=(PC.source++));
1.1 paf 573:
1.4 paf 574: if(c=='\n') {
1.114 paf 575: PC.line++;
576: PC.col=0;
1.10 paf 577: } else
1.114 paf 578: PC.col++;
1.73 paf 579:
1.119 paf 580: if(c=='^' && PC.ls!=LS_COMMENT && PC.ls!=LS_DEF_COMMENT)
1.114 paf 581: switch(*PC.source) {
1.126 paf 582: // escaping: ^^ & co
1.48 paf 583: case '^': case '$': case ';':
1.126 paf 584: case '(': case ')':
1.48 paf 585: case '[': case ']':
586: case '{': case '}':
1.114 paf 587: case '"':
1.40 paf 588: if(end!=begin) {
589: // append piece till ^
1.121 paf 590: PC.string->APPEND_CLEAN(begin, end-begin, PC.file, begin_line);
1.40 paf 591: }
1.63 paf 592: // reset piece 'begin' position & line
1.114 paf 593: begin=PC.source; // ^
594: begin_line=PC.line;
1.40 paf 595: // skip over ^ and _
1.114 paf 596: PC.source++; PC.col++;
1.40 paf 597: // skip analysis = forced literal
1.1 paf 598: continue;
1.114 paf 599:
600: // converting ^#HH into char(hex(HH))
601: case '#':
602: if(end!=begin) {
603: // append piece till ^
1.121 paf 604: PC.string->APPEND_CLEAN(begin, end-begin, PC.file, begin_line);
1.114 paf 605: }
606: // #HH ?
607: if(PC.source[0]=='#' && PC.source[1] && PC.source[2]) {
608: char *hex=(char *)POOL.malloc(1);
609: hex[0]=
610: hex_value[(unsigned char)PC.source[1]]*0x10+
611: hex_value[(unsigned char)PC.source[2]];
612: if(hex[0]==0) {
613: result=BAD_HEX_LITERAL;
614: goto break2; // wrong hex value[no ^#00 chars allowed]: bail out
615: }
616: // append char(hex(HH))
1.121 paf 617: PC.string->APPEND_CLEAN(hex, 1, PC.file, begin_line);
1.114 paf 618: // skip over ^#HH
619: PC.source+=3;
620: PC.col+=3;
621: // reset piece 'begin' position & line
622: begin=PC.source; // ^
623: begin_line=PC.line;
624: continue;
625: }
626: break;
1.1 paf 627: }
1.113 paf 628: // #comment start skipping
1.114 paf 629: if(c=='#' && PC.col==1) {
1.112 paf 630: if(end!=begin) {
631: // append piece till #
1.121 paf 632: PC.string->APPEND_CLEAN(begin, end-begin, PC.file, begin_line);
1.112 paf 633: }
634: // fall into COMMENT lexical state [wait for \n]
635: push_LS(PC, LS_COMMENT);
636: }
1.114 paf 637: switch(PC.ls) {
1.10 paf 638:
639: // USER'S = NOT OURS
1.1 paf 640: case LS_USER:
1.153 parser 641: if(PC.trim_bof)
642: switch(c) {
643: case '\n': case ' ': case '\t':
1.152 parser 644: begin=PC.source;
645: begin_line=PC.line;
646: continue; // skip it
1.153 parser 647: default:
648: PC.trim_bof=false;
1.152 parser 649: }
1.48 paf 650: switch(c) {
651: case '$':
1.10 paf 652: push_LS(PC, LS_VAR_NAME_SIMPLE);
1.48 paf 653: RC;
654: case '^':
655: push_LS(PC, LS_METHOD_NAME);
656: RC;
657: case '@':
1.114 paf 658: if(PC.col==0+1) {
1.48 paf 659: push_LS(PC, LS_DEF_NAME);
660: RC;
661: }
662: break;
1.112 paf 663: }
664: break;
665:
666: // #COMMENT
667: case LS_COMMENT:
668: if(c=='\n') {
669: // skip comment
1.114 paf 670: begin=PC.source;
671: begin_line=PC.line;
1.112 paf 672:
673: pop_LS(PC);
674: continue;
1.1 paf 675: }
1.48 paf 676: break;
677:
678: // STRING IN EXPRESSION
1.145 parser 679: case LS_EXPRESSION_STRING_QUOTED:
680: case LS_EXPRESSION_STRING_APOSTROFED:
1.48 paf 681: switch(c) {
682: case '"':
1.145 parser 683: case '\'':
684: if(
685: PC.ls == LS_EXPRESSION_STRING_QUOTED && c=='"' ||
686: PC.ls == LS_EXPRESSION_STRING_APOSTROFED && c=='\'') {
687: pop_LS(PC); //"abc". | 'abc'.
688: RC;
689: }
690: break;
1.48 paf 691: case '$':
692: push_LS(PC, LS_VAR_NAME_SIMPLE);
693: RC;
694: case '^':
1.10 paf 695: push_LS(PC, LS_METHOD_NAME);
1.48 paf 696: RC;
1.10 paf 697: }
698: break;
699:
700: // METHOD DEFINITION
701: case LS_DEF_NAME:
1.48 paf 702: switch(c) {
703: case '[':
1.114 paf 704: PC.ls=LS_DEF_PARAMS;
1.48 paf 705: RC;
706: case '\n':
1.114 paf 707: PC.ls=LS_DEF_SPECIAL_BODY;
1.48 paf 708: RC;
1.10 paf 709: }
710: break;
1.48 paf 711:
1.10 paf 712: case LS_DEF_PARAMS:
1.48 paf 713: switch(c) {
714: case ';':
715: RC;
716: case ']':
1.114 paf 717: PC.ls=*PC.source=='['?LS_DEF_LOCALS:LS_DEF_COMMENT;
1.48 paf 718: RC;
1.49 paf 719: case '\n': // wrong. bailing out
1.10 paf 720: pop_LS(PC);
1.48 paf 721: RC;
1.10 paf 722: }
723: break;
1.48 paf 724:
1.10 paf 725: case LS_DEF_LOCALS:
1.48 paf 726: switch(c) {
727: case '[':
728: case ';':
729: RC;
730: case ']':
1.114 paf 731: PC.ls=LS_DEF_COMMENT;
1.48 paf 732: RC;
733: case '\n': // wrong. bailing out
1.10 paf 734: pop_LS(PC);
1.48 paf 735: RC;
1.10 paf 736: }
737: break;
1.48 paf 738:
1.10 paf 739: case LS_DEF_COMMENT:
740: if(c=='\n') {
741: pop_LS(PC);
1.48 paf 742: RC;
1.37 paf 743: }
744: break;
745:
1.48 paf 746: case LS_DEF_SPECIAL_BODY:
1.147 parser 747: // @todo in case
748: // ################
749: // @next-method
750: // we are here with c=='@'
751: // which is wrong, and need action
1.37 paf 752: if(c=='\n') {
1.114 paf 753: switch(*PC.source) {
1.48 paf 754: case '@': case 0: // end of special_code
1.37 paf 755: pop_LS(PC);
1.48 paf 756: break;
757: }
758: RC;
759: }
760: break;
761:
762: // (EXPRESSION)
1.69 paf 763: case LS_VAR_ROUND:
764: case LS_METHOD_ROUND:
1.48 paf 765: switch(c) {
766: case ')':
767: if(--lexical_brackets_nestage==0)
1.114 paf 768: if(PC.ls==LS_METHOD_ROUND) // method round param ended
769: PC.ls=LS_METHOD_AFTER; // look for method end
770: else // PC.ls==LS_VAR_ROUND // variable constructor ended
1.69 paf 771: pop_LS(PC); // return to normal life
1.48 paf 772: RC;
773: case '$':
1.69 paf 774: push_LS(PC, LS_EXPRESSION_VAR_NAME);
1.48 paf 775: RC;
776: case '^':
777: push_LS(PC, LS_METHOD_NAME);
778: RC;
779: case '(':
780: lexical_brackets_nestage++;
781: RC;
1.67 paf 782: case '-':
1.127 paf 783: switch(*PC.source) {
784: case 'f': // -f
1.67 paf 785: skip_analized=1;
786: result=FEXISTS;
1.127 paf 787: goto break2;
788: case 'd': // -d
789: skip_analized=1;
790: result=DEXISTS;
791: goto break2;
792: default:
1.67 paf 793: result=c;
1.127 paf 794: goto break2;
795: }
1.67 paf 796: goto break2;
797: case '+': case '*': case '/': case '%':
1.58 paf 798: case '~':
1.48 paf 799: case ';':
800: RC;
1.59 paf 801: case '&': case '|': case '#':
1.114 paf 802: if(*PC.source==c) { // && ||
1.59 paf 803: result=c=='#'?LXOR:c=='&'?LAND:LOR;
1.67 paf 804: skip_analized=1;
1.58 paf 805: } else
806: result=c;
807: goto break2;
808: case '<': case '>': case '=': case '!':
1.114 paf 809: if(*PC.source=='=') { // <= >= == !=
1.67 paf 810: skip_analized=1;
1.58 paf 811: switch(c) {
812: case '<': result=NLE; break;
813: case '>': result=NGE; break;
814: case '=': result=NEQ; break;
815: case '!': result=NNE; break;
816: }
817: } else
818: result=c;
819: goto break2;
1.48 paf 820: case '"':
1.145 parser 821: push_LS(PC, LS_EXPRESSION_STRING_QUOTED);
822: RC;
823: case '\'':
824: push_LS(PC, LS_EXPRESSION_STRING_APOSTROFED);
1.48 paf 825: RC;
1.50 paf 826: case 'l': case 'g': case 'e': case 'n':
1.51 paf 827: if(end==begin) // right after whitespace
1.117 paf 828: if(isspace(PC.source[1])) {
829: switch(*PC.source) {
830: // case '?': // ok [and bad cases, yacc would bark at them]
831: case 't': // lt gt [et nt]
832: result=c=='l'?SLT:c=='g'?SGT:BAD_STRING_COMPARISON_OPERATOR;
833: skip_analized=1;
834: goto break2;
835: case 'e': // le ge ne [ee]
836: result=c=='l'?SLE:c=='g'?SGE:c=='n'?SNE:BAD_STRING_COMPARISON_OPERATOR;
837: skip_analized=1;
838: goto break2;
839: case 'q': // eq [lq gq nq]
840: result=c=='e'?SEQ:BAD_STRING_COMPARISON_OPERATOR;
841: skip_analized=1;
842: goto break2;
843: }
1.67 paf 844: }
845: break;
846: case 'i':
847: if(end==begin) // right after whitespace
1.117 paf 848: if(isspace(PC.source[1])) {
849: switch(PC.source[0]) {
850: case 'n': // in
1.95 paf 851: skip_analized=1;
852: result=IN;
853: goto break2;
1.117 paf 854: case 's': // is
1.95 paf 855: skip_analized=1;
856: result=IS;
857: goto break2;
858: }
1.67 paf 859: }
860: break;
861: case 'd':
862: if(end==begin) // right after whitespace
1.114 paf 863: if(PC.source[0]=='e' && PC.source[1]=='f') { // def
1.67 paf 864: skip_analized=2;
865: result=DEF;
1.58 paf 866: goto break2;
1.50 paf 867: }
1.48 paf 868: break;
869: case ' ': case '\t': case '\n':
1.63 paf 870: if(end!=begin) { // there were a string after previous operator?
871: result=0; // return that string
872: goto break2;
1.48 paf 873: }
1.63 paf 874: // that's a leading|traling space or after-operator-space
875: // ignoring it
876: // reset piece 'begin' position & line
1.114 paf 877: begin=PC.source; // after whitespace char
878: begin_line=PC.line;
1.48 paf 879: continue;
1.1 paf 880: }
881: break;
882:
1.10 paf 883: // VARIABLE GET/PUT/WITH
1.1 paf 884: case LS_VAR_NAME_SIMPLE:
1.69 paf 885: case LS_EXPRESSION_VAR_NAME:
1.142 parser 886: case LS_VAR_NAME_NO_COLON:
1.114 paf 887: if(PC.ls==LS_EXPRESSION_VAR_NAME) {
1.56 paf 888: // name in expr ends also before binary operators
1.48 paf 889: switch(c) {
1.92 paf 890: case '-':
1.48 paf 891: pop_LS(PC);
1.114 paf 892: PC.source--; if(--PC.col<0) { PC.line--; PC.col=-1; }
1.48 paf 893: result=EON;
894: goto break2;
895: }
896: }
1.142 parser 897: if(PC.ls==LS_VAR_NAME_NO_COLON) {
898: // name already has ':', stop before next
899: switch(c) {
900: case ':':
901: pop_LS(PC);
902: PC.source--; if(--PC.col<0) { PC.line--; PC.col=-1; }
903: result=EON;
904: goto break2;
905: }
906: }
1.48 paf 907: switch(c) {
908: case 0:
909: case ' ': case '\t': case '\n':
910: case ';':
1.126 paf 911: case ']': case '}': case ')':
912: case '"': case '\'':
1.139 parser 913: case '<': case '>': // these stand for HTML brackets AND expression binary ops
1.92 paf 914: case '+': case '*': case '/': case '%':
915: case '&': case '|':
916: case '=': case '!':
1.99 paf 917: // common delimiters
1.126 paf 918: case ',':
1.139 parser 919: // before call
920: case '^':
1.1 paf 921: pop_LS(PC);
1.114 paf 922: PC.source--; if(--PC.col<0) { PC.line--; PC.col=-1; }
1.13 paf 923: result=EON;
1.1 paf 924: goto break2;
1.48 paf 925: case '[':
1.114 paf 926: PC.ls=LS_VAR_SQUARE;
1.1 paf 927: lexical_brackets_nestage=1;
1.48 paf 928: RC;
929: case '{':
930: if(begin==end) { // ${name}, no need of EON, switching LS
1.114 paf 931: PC.ls=LS_VAR_NAME_CURLY;
1.48 paf 932: } else {
1.114 paf 933: PC.ls=LS_VAR_CURLY;
1.48 paf 934: lexical_brackets_nestage=1;
935: }
1.69 paf 936:
1.48 paf 937: RC;
938: case '(':
1.114 paf 939: PC.ls=LS_VAR_ROUND;
1.1 paf 940: lexical_brackets_nestage=1;
1.48 paf 941: RC;
942: case '.': // name part delim
943: case '$': // name part subvar
944: case ':': // ':name' or 'class:name'
1.142 parser 945: PC.ls=LS_VAR_NAME_NO_COLON; // stop before next ':'
1.48 paf 946: RC;
1.1 paf 947: }
948: break;
1.48 paf 949:
1.1 paf 950: case LS_VAR_NAME_CURLY:
1.48 paf 951: switch(c) {
952: case '}': // ${name} finished, restoring LS
1.1 paf 953: pop_LS(PC);
1.48 paf 954: RC;
955: case '.': // name part delim
956: case '$': // name part subvar
957: case ':': // ':name' or 'class:name'
958: RC;
1.1 paf 959: }
960: break;
1.48 paf 961:
962: case LS_VAR_SQUARE:
963: switch(c) {
964: case '$':
1.10 paf 965: push_LS(PC, LS_VAR_NAME_SIMPLE);
1.48 paf 966: RC;
967: case '^':
1.10 paf 968: push_LS(PC, LS_METHOD_NAME);
1.48 paf 969: RC;
970: case ']':
1.1 paf 971: if(--lexical_brackets_nestage==0) {
972: pop_LS(PC);
1.48 paf 973: RC;
1.1 paf 974: }
1.48 paf 975: break;
976: case ';': // operator_or_fmt;value delim
977: RC;
978: case '[':
979: lexical_brackets_nestage++;
980: break;
1.1 paf 981: }
982: break;
1.48 paf 983:
1.1 paf 984: case LS_VAR_CURLY:
1.48 paf 985: switch(c) {
986: case '$':
1.10 paf 987: push_LS(PC, LS_VAR_NAME_SIMPLE);
1.48 paf 988: RC;
989: case '^':
1.10 paf 990: push_LS(PC, LS_METHOD_NAME);
1.48 paf 991: RC;
992: case '}':
1.1 paf 993: if(--lexical_brackets_nestage==0) {
994: pop_LS(PC);
1.48 paf 995: RC;
1.1 paf 996: }
1.48 paf 997: break;
998: case '{':
1.1 paf 999: lexical_brackets_nestage++;
1.48 paf 1000: break;
1001: }
1.1 paf 1002: break;
1003:
1.10 paf 1004: // METHOD CALL
1.1 paf 1005: case LS_METHOD_NAME:
1.48 paf 1006: switch(c) {
1007: case '[':
1.114 paf 1008: PC.ls=LS_METHOD_SQUARE;
1.1 paf 1009: lexical_brackets_nestage=1;
1.48 paf 1010: RC;
1011: case '{':
1.114 paf 1012: PC.ls=LS_METHOD_CURLY;
1.1 paf 1013: lexical_brackets_nestage=1;
1.48 paf 1014: RC;
1.69 paf 1015: case '(':
1.114 paf 1016: PC.ls=LS_METHOD_ROUND;
1.69 paf 1017: lexical_brackets_nestage=1;
1018: RC;
1.48 paf 1019: case '.': // name part delim
1020: case '$': // name part subvar
1021: case ':': // ':name' or 'class:name'
1022: RC;
1.1 paf 1023: }
1024: break;
1.48 paf 1025:
1026: case LS_METHOD_SQUARE:
1027: switch(c) {
1028: case '$':
1.10 paf 1029: push_LS(PC, LS_VAR_NAME_SIMPLE);
1.48 paf 1030: RC;
1031: case '^':
1.10 paf 1032: push_LS(PC, LS_METHOD_NAME);
1.48 paf 1033: RC;
1034: case ';': // param delim
1035: RC;
1036: case ']':
1.1 paf 1037: if(--lexical_brackets_nestage==0) {
1.114 paf 1038: PC.ls=LS_METHOD_AFTER;
1.48 paf 1039: RC;
1.1 paf 1040: }
1.48 paf 1041: break;
1042: case '[':
1.1 paf 1043: lexical_brackets_nestage++;
1.48 paf 1044: break;
1045: }
1.1 paf 1046: break;
1.48 paf 1047:
1.1 paf 1048: case LS_METHOD_CURLY:
1.48 paf 1049: switch(c) {
1050: case '$':
1.10 paf 1051: push_LS(PC, LS_VAR_NAME_SIMPLE);
1.48 paf 1052: RC;
1053: case '^':
1.10 paf 1054: push_LS(PC, LS_METHOD_NAME);
1.94 paf 1055: RC;
1056: case ';': // param delim
1.48 paf 1057: RC;
1058: case '}':
1.1 paf 1059: if(--lexical_brackets_nestage==0) {
1.114 paf 1060: PC.ls=LS_METHOD_AFTER;
1.48 paf 1061: RC;
1.1 paf 1062: }
1.48 paf 1063: break;
1064: case '{':
1.1 paf 1065: lexical_brackets_nestage++;
1.48 paf 1066: break;
1067: }
1.1 paf 1068: break;
1.48 paf 1069:
1.1 paf 1070: case LS_METHOD_AFTER:
1.69 paf 1071: if(c=='[') {/* ][ }[ )[ */
1.114 paf 1072: PC.ls=LS_METHOD_SQUARE;
1.1 paf 1073: lexical_brackets_nestage=1;
1.48 paf 1074: RC;
1.1 paf 1075: }
1.69 paf 1076: if(c=='{') {/* ]{ }{ ){ */
1.114 paf 1077: PC.ls=LS_METHOD_CURLY;
1.69 paf 1078: lexical_brackets_nestage=1;
1079: RC;
1080: }
1081: if(c=='(') {/* ]( }( )( */
1.114 paf 1082: PC.ls=LS_METHOD_ROUND;
1.1 paf 1083: lexical_brackets_nestage=1;
1.48 paf 1084: RC;
1.1 paf 1085: }
1086: pop_LS(PC);
1.114 paf 1087: PC.source--; if(--PC.col<0) { PC.line--; PC.col=-1; }
1.13 paf 1088: result=EON;
1.1 paf 1089: goto break2;
1090: }
1.9 paf 1091: if(c==0) {
1.1 paf 1092: result=-1;
1093: break;
1094: }
1095: }
1096:
1097: break2:
1.59 paf 1098: if(end!=begin) { // there is last piece?
1099: if((c=='@' || c==0) && end[-1]=='\n') { // we are before LS_DEF_NAME or EOF?
1100: // strip last \n
1.10 paf 1101: end--;
1.137 parser 1102: if(end!=begin && end[-1]=='\n') // allow one empty line before LS_DEF_NAME
1103: end--;
1.59 paf 1104: }
1.133 parser 1105: if(end!=begin && PC.ls!=LS_COMMENT) { // last piece still alive and not comment?
1.59 paf 1106: // append it
1.121 paf 1107: PC.string->APPEND_CLEAN(begin, end-begin, PC.file, begin_line/*, start_col*/);
1.30 paf 1108: }
1.59 paf 1109: }
1.114 paf 1110: if(PC.string->size()) { // something accumulated?
1.17 paf 1111: // create STRING value: array of OP_VALUE+vstring
1.114 paf 1112: *lvalp=VL(NEW VString(*PC.string));
1.10 paf 1113: // new pieces storage
1.114 paf 1114: PC.string=NEW String(POOL);
1.58 paf 1115: // make current result be pending for next call, return STRING for now
1.114 paf 1116: PC.pending_state=result; result=STRING;
1.58 paf 1117: }
1.67 paf 1118: if(skip_analized) {
1.114 paf 1119: PC.source+=skip_analized; PC.col+=skip_analized;
1.1 paf 1120: }
1.58 paf 1121: return result;
1.1 paf 1122: }
1123:
1.110 paf 1124: static int real_yyerror(parse_control *pc, char *s) { // Called by yyparse on error
1.114 paf 1125: strncpy(PC.error, s, MAX_STRING);
1.1 paf 1126: return 1;
1.110 paf 1127: }
1.1 paf 1128:
1.110 paf 1129: static void yyprint(FILE *file, int type, YYSTYPE value) {
1130: if(type==STRING)
1.120 paf 1131: fprintf(file, " \"%s\"", LA2S(value)->cstr());
1.110 paf 1132: }
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