/[svn]/linuxsampler/trunk/src/scriptvm/parser.y
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Annotation of /linuxsampler/trunk/src/scriptvm/parser.y

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Revision 2942 - (hide annotations) (download)
Wed Jul 13 15:51:06 2016 UTC (7 years, 9 months ago) by schoenebeck
File size: 29737 byte(s) 
* NKSP: Implemented built-in script variable "$KSP_TIMER".
* NKSP: Implemented built-in script variable "$NKSP_REAL_TIMER".
* NKSP: Implemented built-in script variable "$NKSP_PERF_TIMER".
* NKSP: Implemented built-in script variable "$ENGINE_UPTIME".
* Bumped version (2.0.0.svn14).
1 schoenebeck 2581 /*
2 schoenebeck 2888 * Copyright (c) 2014-2016 Christian Schoenebeck and Andreas Persson
3 schoenebeck 2581 *
4     * http://www.linuxsampler.org
5     *
6     * This file is part of LinuxSampler and released under the same terms.
7     * See README file for details.
8     */
9 schoenebeck 2888
10     /* Parser for NKSP real-time instrument script language. */
11 schoenebeck 2581
12     %{
13     #define YYERROR_VERBOSE 1
14     #include "parser_shared.h"
15     #include <string>
16     #include <map>
17     using namespace LinuxSampler;
18    
19     void InstrScript_error(YYLTYPE* locp, LinuxSampler::ParserContext* context, const char* err);
20     void InstrScript_warning(YYLTYPE* locp, LinuxSampler::ParserContext* context, const char* txt);
21     int InstrScript_lex(YYSTYPE* lvalp, YYLTYPE* llocp, void* scanner);
22     #define scanner context->scanner
23 schoenebeck 2888 #define PARSE_ERR(loc,txt) yyerror(&loc, context, txt)
24     #define PARSE_WRN(loc,txt) InstrScript_warning(&loc, context, txt)
25 schoenebeck 2581 %}
26    
27     // generate reentrant safe parser
28     %pure-parser
29     %parse-param { LinuxSampler::ParserContext* context }
30     %lex-param { void* scanner }
31     // avoid symbol collision with other (i.e. future) auto generated (f)lex scanners
32     %name-prefix "InstrScript_"
33     %locations
34     %defines
35     %error-verbose
36    
37     %token <iValue> INTEGER
38     %token <sValue> STRING
39     %token <sValue> IDENTIFIER
40     %token <sValue> VARIABLE
41     %token ON END INIT NOTE DECLARE ASSIGNMENT WHILE IF OR RELEASE AND ELSE
42 schoenebeck 2935 %token BITWISE_OR BITWISE_AND BITWISE_NOT
43 schoenebeck 2585 %token CONTROLLER SELECT CASE TO NOT CONST_ POLYPHONIC MOD
44 schoenebeck 2581 %token LE GE
45    
46     %type <nEventHandlers> script eventhandlers
47     %type <nEventHandler> eventhandler
48 schoenebeck 2911 %type <nStatements> statements body
49 schoenebeck 2581 %type <nStatement> statement assignment
50     %type <nFunctionCall> functioncall
51     %type <nArgs> args
52 schoenebeck 2935 %type <nExpression> arg expr logical_or_expr logical_and_expr bitwise_or_expr bitwise_and_expr rel_expr add_expr mul_expr unary_expr concat_expr
53 schoenebeck 2581 %type <nCaseBranch> caseclause
54     %type <nCaseBranches> caseclauses
55    
56     %start script
57    
58     %%
59    
60     script:
61     eventhandlers {
62     $$ = context->handlers = $1;
63     }
64    
65     eventhandlers:
66     eventhandler {
67     $$ = new EventHandlers();
68     $$->add($1);
69     }
70     | eventhandlers eventhandler {
71     $$ = $1;
72     $$->add($2);
73     }
74    
75     eventhandler:
76 schoenebeck 2911 ON NOTE body END ON {
77 schoenebeck 2581 if (context->onNote)
78 schoenebeck 2888 PARSE_ERR(@2, "Redeclaration of 'note' event handler.");
79 schoenebeck 2581 context->onNote = new OnNote($3);
80     $$ = context->onNote;
81     }
82 schoenebeck 2911 | ON INIT body END ON {
83 schoenebeck 2581 if (context->onInit)
84 schoenebeck 2888 PARSE_ERR(@2, "Redeclaration of 'init' event handler.");
85 schoenebeck 2581 context->onInit = new OnInit($3);
86     $$ = context->onInit;
87     }
88 schoenebeck 2911 | ON RELEASE body END ON {
89 schoenebeck 2581 if (context->onRelease)
90 schoenebeck 2888 PARSE_ERR(@2, "Redeclaration of 'release' event handler.");
91 schoenebeck 2581 context->onRelease = new OnRelease($3);
92     $$ = context->onRelease;
93     }
94 schoenebeck 2911 | ON CONTROLLER body END ON {
95 schoenebeck 2581 if (context->onController)
96 schoenebeck 2888 PARSE_ERR(@2, "Redeclaration of 'controller' event handler.");
97 schoenebeck 2581 context->onController = new OnController($3);
98     $$ = context->onController;
99     }
100    
101 schoenebeck 2911 body:
102     /* epsilon (empty argument) */ {
103     $$ = new Statements();
104     }
105     | statements {
106     $$ = $1;
107     }
108    
109 schoenebeck 2581 statements:
110     statement {
111     $$ = new Statements();
112     if ($1) {
113     if (!isNoOperation($1)) $$->add($1); // filter out NoOperation statements
114     } else
115 schoenebeck 2888 PARSE_WRN(@1, "Not a statement.");
116 schoenebeck 2581 }
117     | statements statement {
118     $$ = $1;
119     if ($2) {
120     if (!isNoOperation($2)) $$->add($2); // filter out NoOperation statements
121     } else
122 schoenebeck 2888 PARSE_WRN(@2, "Not a statement.");
123 schoenebeck 2581 }
124    
125     statement:
126     functioncall {
127     $$ = $1;
128     }
129     | DECLARE VARIABLE {
130     const char* name = $2;
131     //printf("declared var '%s'\n", name);
132     if (context->variableByName(name))
133 schoenebeck 2888 PARSE_ERR(@2, (String("Redeclaration of variable '") + name + "'.").c_str());
134 schoenebeck 2581 if (name[0] == '@') {
135     context->vartable[name] = new StringVariable(context);
136     $$ = new NoOperation;
137     } else {
138     context->vartable[name] = new IntVariable(context);
139     $$ = new NoOperation;
140     }
141     }
142     | DECLARE POLYPHONIC VARIABLE {
143     const char* name = $3;
144     //printf("declared polyphonic var '%s'\n", name);
145     if (context->variableByName(name))
146 schoenebeck 2888 PARSE_ERR(@3, (String("Redeclaration of variable '") + name + "'.").c_str());
147 schoenebeck 2581 if (name[0] != '$') {
148 schoenebeck 2888 PARSE_ERR(@3, "Polyphonic variables may only be declared as integers.");
149 schoenebeck 2581 $$ = new FunctionCall("nothing", new Args, NULL); // whatever
150     } else {
151     context->vartable[name] = new PolyphonicIntVariable(context);
152     $$ = new NoOperation;
153     }
154     }
155     | DECLARE VARIABLE ASSIGNMENT expr {
156     const char* name = $2;
157     //printf("declared assign var '%s'\n", name);
158     if (context->variableByName(name))
159 schoenebeck 2888 PARSE_ERR(@2, (String("Redeclaration of variable '") + name + "'.").c_str());
160 schoenebeck 2581 if ($4->exprType() == STRING_EXPR) {
161     if (name[0] == '$')
162 schoenebeck 2888 PARSE_WRN(@2, (String("Variable '") + name + "' declared as integer, string expression assigned though.").c_str());
163 schoenebeck 2581 StringExprRef expr = $4;
164     if (expr->isConstExpr()) {
165     const String s = expr->evalStr();
166     StringVariableRef var = new StringVariable(context);
167     context->vartable[name] = var;
168     $$ = new Assignment(var, new StringLiteral(s));
169     } else {
170     StringVariableRef var = new StringVariable(context);
171     context->vartable[name] = var;
172     $$ = new Assignment(var, expr);
173     }
174     } else {
175     if (name[0] == '@')
176 schoenebeck 2888 PARSE_WRN(@2, (String("Variable '") + name + "' declared as string, integer expression assigned though.").c_str());
177 schoenebeck 2581 IntExprRef expr = $4;
178     if (expr->isConstExpr()) {
179     const int i = expr->evalInt();
180     IntVariableRef var = new IntVariable(context);
181     context->vartable[name] = var;
182     $$ = new Assignment(var, new IntLiteral(i));
183     } else {
184     IntVariableRef var = new IntVariable(context);
185     context->vartable[name] = var;
186     $$ = new Assignment(var, expr);
187     }
188     }
189     }
190     | DECLARE VARIABLE '[' expr ']' {
191     //printf("declare array without args\n");
192     const char* name = $2;
193     if (!$4->isConstExpr()) {
194 schoenebeck 2888 PARSE_ERR(@4, (String("Array variable '") + name + "' must be declared with constant array size.").c_str());
195 schoenebeck 2581 $$ = new FunctionCall("nothing", new Args, NULL); // whatever
196     } else if ($4->exprType() != INT_EXPR) {
197 schoenebeck 2888 PARSE_ERR(@4, (String("Size of array variable '") + name + "' declared with non integer expression.").c_str());
198 schoenebeck 2581 $$ = new FunctionCall("nothing", new Args, NULL); // whatever
199     } else if (context->variableByName(name)) {
200 schoenebeck 2888 PARSE_ERR(@2, (String("Redeclaration of variable '") + name + "'.").c_str());
201 schoenebeck 2581 $$ = new FunctionCall("nothing", new Args, NULL); // whatever
202     } else {
203     IntExprRef expr = $4;
204     int size = expr->evalInt();
205     if (size <= 0) {
206 schoenebeck 2888 PARSE_ERR(@4, (String("Array variable '") + name + "' declared with array size " + ToString(size) + ".").c_str());
207 schoenebeck 2581 $$ = new FunctionCall("nothing", new Args, NULL); // whatever
208     } else {
209     context->vartable[name] = new IntArrayVariable(context, size);
210     $$ = new NoOperation;
211     }
212     }
213     }
214     | DECLARE VARIABLE '[' expr ']' ASSIGNMENT '(' args ')' {
215     const char* name = $2;
216     if (!$4->isConstExpr()) {
217 schoenebeck 2888 PARSE_ERR(@4, (String("Array variable '") + name + "' must be declared with constant array size.").c_str());
218 schoenebeck 2581 $$ = new FunctionCall("nothing", new Args, NULL); // whatever
219     } else if ($4->exprType() != INT_EXPR) {
220 schoenebeck 2888 PARSE_ERR(@4, (String("Size of array variable '") + name + "' declared with non integer expression.").c_str());
221 schoenebeck 2581 $$ = new FunctionCall("nothing", new Args, NULL); // whatever
222     } else if (context->variableByName(name)) {
223 schoenebeck 2888 PARSE_ERR(@2, (String("Redeclaration of variable '") + name + "'.").c_str());
224 schoenebeck 2581 $$ = new FunctionCall("nothing", new Args, NULL); // whatever
225     } else {
226     IntExprRef sizeExpr = $4;
227     ArgsRef args = $8;
228     int size = sizeExpr->evalInt();
229     if (size <= 0) {
230 schoenebeck 2888 PARSE_ERR(@4, (String("Array variable '") + name + "' must be declared with positive array size.").c_str());
231 schoenebeck 2581 $$ = new FunctionCall("nothing", new Args, NULL); // whatever
232     } else if (args->argsCount() > size) {
233 schoenebeck 2888 PARSE_ERR(@8, (String("Variable '") + name +
234 schoenebeck 2581 "' was declared with size " + ToString(size) +
235     " but " + ToString(args->argsCount()) +
236     " values were assigned." ).c_str());
237     $$ = new FunctionCall("nothing", new Args, NULL); // whatever
238     } else {
239     bool argsOK = true;
240     for (int i = 0; i < args->argsCount(); ++i) {
241     if (args->arg(i)->exprType() != INT_EXPR) {
242     PARSE_ERR(
243 schoenebeck 2888 @8,
244 schoenebeck 2581 (String("Array variable '") + name +
245     "' declared with invalid assignment values. Assigned element " +
246     ToString(i+1) + " is not an integer expression.").c_str()
247     );
248     argsOK = false;
249     break;
250     }
251     }
252     if (argsOK)
253     $$ = context->vartable[name] = new IntArrayVariable(context, size, args);
254     else
255     $$ = new FunctionCall("nothing", new Args, NULL); // whatever
256     }
257     }
258     }
259 schoenebeck 2585 | DECLARE CONST_ VARIABLE ASSIGNMENT expr {
260 schoenebeck 2581 const char* name = $3;
261     if ($5->exprType() == STRING_EXPR) {
262     if (name[0] == '$')
263 schoenebeck 2888 PARSE_WRN(@5, "Variable declared as integer, string expression assigned though.");
264 schoenebeck 2581 String s;
265     StringExprRef expr = $5;
266     if (expr->isConstExpr())
267     s = expr->evalStr();
268     else
269 schoenebeck 2888 PARSE_ERR(@5, (String("Assignment to const string variable '") + name + "' requires const expression.").c_str());
270 schoenebeck 2581 ConstStringVariableRef var = new ConstStringVariable(context, s);
271     context->vartable[name] = var;
272     //$$ = new Assignment(var, new StringLiteral(s));
273     $$ = new NoOperation();
274     } else {
275     if (name[0] == '@')
276 schoenebeck 2888 PARSE_WRN(@5, "Variable declared as string, integer expression assigned though.");
277 schoenebeck 2581 int i = 0;
278     IntExprRef expr = $5;
279     if (expr->isConstExpr())
280     i = expr->evalInt();
281     else
282 schoenebeck 2888 PARSE_ERR(@5, (String("Assignment to const integer variable '") + name + "' requires const expression.").c_str());
283 schoenebeck 2581 ConstIntVariableRef var = new ConstIntVariable(i);
284     context->vartable[name] = var;
285     //$$ = new Assignment(var, new IntLiteral(i));
286     $$ = new NoOperation();
287     }
288     }
289     | assignment {
290     $$ = $1;
291     }
292     | WHILE '(' expr ')' statements END WHILE {
293     if ($3->exprType() == INT_EXPR) {
294     $$ = new While($3, $5);
295     } else {
296 schoenebeck 2888 PARSE_ERR(@3, "Condition for 'while' loops must be integer expression.");
297 schoenebeck 2581 $$ = new While(new IntLiteral(0), $5);
298     }
299     }
300     | IF '(' expr ')' statements ELSE statements END IF {
301     $$ = new If($3, $5, $7);
302     }
303     | IF '(' expr ')' statements END IF {
304     $$ = new If($3, $5);
305     }
306     | SELECT expr caseclauses END SELECT {
307     if ($2->exprType() == INT_EXPR) {
308     $$ = new SelectCase($2, $3);
309     } else {
310 schoenebeck 2888 PARSE_ERR(@2, "Statement 'select' can only by applied to integer expressions.");
311 schoenebeck 2581 $$ = new SelectCase(new IntLiteral(0), $3);
312     }
313     }
314    
315     caseclauses:
316     caseclause {
317     $$ = CaseBranches();
318     $$.push_back($1);
319     }
320     | caseclauses caseclause {
321     $$ = $1;
322     $$.push_back($2);
323     }
324    
325     caseclause:
326     CASE INTEGER statements {
327     $$ = CaseBranch();
328     $$.from = new IntLiteral($2);
329     $$.statements = $3;
330     }
331     | CASE INTEGER TO INTEGER statements {
332     $$ = CaseBranch();
333     $$.from = new IntLiteral($2);
334     $$.to = new IntLiteral($4);
335     $$.statements = $5;
336     }
337    
338     functioncall:
339     IDENTIFIER '(' args ')' {
340     const char* name = $1;
341     //printf("function call of '%s' with args\n", name);
342     ArgsRef args = $3;
343     VMFunction* fn = context->functionProvider->functionByName(name);
344     if (!fn) {
345 schoenebeck 2888 PARSE_ERR(@1, (String("No built-in function with name '") + name + "'.").c_str());
346 schoenebeck 2581 $$ = new FunctionCall(name, args, NULL);
347     } else if (args->argsCount() < fn->minRequiredArgs()) {
348 schoenebeck 2888 PARSE_ERR(@3, (String("Built-in function '") + name + "' requires at least " + ToString(fn->minRequiredArgs()) + " arguments.").c_str());
349 schoenebeck 2581 $$ = new FunctionCall(name, args, NULL);
350     } else if (args->argsCount() > fn->maxAllowedArgs()) {
351 schoenebeck 2888 PARSE_ERR(@3, (String("Built-in function '") + name + "' accepts max. " + ToString(fn->maxAllowedArgs()) + " arguments.").c_str());
352 schoenebeck 2581 $$ = new FunctionCall(name, args, NULL);
353     } else {
354     bool argsOK = true;
355     for (int i = 0; i < args->argsCount(); ++i) {
356     if (args->arg(i)->exprType() != fn->argType(i) && !fn->acceptsArgType(i, args->arg(i)->exprType())) {
357 schoenebeck 2888 PARSE_ERR(@3, (String("Argument ") + ToString(i+1) + " of built-in function '" + name + "' expects " + typeStr(fn->argType(i)) + " type, but type " + typeStr(args->arg(i)->exprType()) + " was given instead.").c_str());
358 schoenebeck 2581 argsOK = false;
359     break;
360     }
361     }
362     $$ = new FunctionCall(name, args, argsOK ? fn : NULL);
363     }
364     }
365     | IDENTIFIER '(' ')' {
366     const char* name = $1;
367     //printf("function call of '%s' (with empty args)\n", name);
368     ArgsRef args = new Args;
369     VMFunction* fn = context->functionProvider->functionByName(name);
370     if (!fn) {
371 schoenebeck 2888 PARSE_ERR(@1, (String("No built-in function with name '") + name + "'.").c_str());
372 schoenebeck 2581 $$ = new FunctionCall(name, args, NULL);
373     } else if (fn->minRequiredArgs() > 0) {
374 schoenebeck 2888 PARSE_ERR(@3, (String("Built-in function '") + name + "' requires at least " + ToString(fn->minRequiredArgs()) + " arguments.").c_str());
375 schoenebeck 2581 $$ = new FunctionCall(name, args, NULL);
376     } else {
377     $$ = new FunctionCall(name, args, fn);
378     }
379     }
380     | IDENTIFIER {
381     const char* name = $1;
382     //printf("function call of '%s' (without args)\n", name);
383     ArgsRef args = new Args;
384     VMFunction* fn = context->functionProvider->functionByName(name);
385     if (!fn) {
386 schoenebeck 2888 PARSE_ERR(@1, (String("No built-in function with name '") + name + "'.").c_str());
387 schoenebeck 2581 $$ = new FunctionCall(name, args, NULL);
388     } else if (fn->minRequiredArgs() > 0) {
389 schoenebeck 2888 PARSE_ERR(@1, (String("Built-in function '") + name + "' requires at least " + ToString(fn->minRequiredArgs()) + " arguments.").c_str());
390 schoenebeck 2581 $$ = new FunctionCall(name, args, NULL);
391     } else {
392     $$ = new FunctionCall(name, args, fn);
393     }
394     }
395    
396     args:
397     arg {
398     $$ = new Args();
399     $$->add($1);
400     }
401     | args ',' arg {
402     $$ = $1;
403     $$->add($3);
404     }
405    
406     arg:
407     expr
408    
409     assignment:
410     VARIABLE ASSIGNMENT expr {
411     //printf("variable lookup with name '%s' as assignment expr\n", $1);
412     const char* name = $1;
413     VariableRef var = context->variableByName(name);
414     if (!var)
415 schoenebeck 2888 PARSE_ERR(@1, (String("Variable assignment: No variable declared with name '") + name + "'.").c_str());
416 schoenebeck 2581 else if (var->isConstExpr())
417 schoenebeck 2888 PARSE_ERR(@2, (String("Variable assignment: Cannot modify const variable '") + name + "'.").c_str());
418 schoenebeck 2942 else if (!var->isAssignable())
419     PARSE_ERR(@2, (String("Variable assignment: Variable '") + name + "' is not assignable.").c_str());
420 schoenebeck 2581 else if (var->exprType() != $3->exprType())
421 schoenebeck 2888 PARSE_ERR(@3, (String("Variable assignment: Variable '") + name + "' is of type " + typeStr(var->exprType()) + ", assignment is of type " + typeStr($3->exprType()) + " though.").c_str());
422 schoenebeck 2581 $$ = new Assignment(var, $3);
423     }
424     | VARIABLE '[' expr ']' ASSIGNMENT expr {
425     const char* name = $1;
426     VariableRef var = context->variableByName(name);
427     if (!var)
428 schoenebeck 2888 PARSE_ERR(@1, (String("No variable declared with name '") + name + "'.").c_str());
429 schoenebeck 2581 else if (var->exprType() != INT_ARR_EXPR)
430 schoenebeck 2888 PARSE_ERR(@2, (String("Variable '") + name + "' is not an array variable.").c_str());
431 schoenebeck 2581 else if ($3->exprType() != INT_EXPR)
432 schoenebeck 2888 PARSE_ERR(@3, (String("Array variable '") + name + "' accessed with non integer expression.").c_str());
433 schoenebeck 2581 else if ($6->exprType() != INT_EXPR)
434 schoenebeck 2888 PARSE_ERR(@5, (String("Value assigned to array variable '") + name + "' must be an integer expression.").c_str());
435 schoenebeck 2581 IntArrayElementRef element = new IntArrayElement(var, $3);
436     $$ = new Assignment(element, $6);
437     }
438    
439     unary_expr:
440     INTEGER {
441     $$ = new IntLiteral($1);
442     }
443     | STRING {
444     $$ = new StringLiteral($1);
445     }
446     | VARIABLE {
447     //printf("variable lookup with name '%s' as unary expr\n", $1);
448     VariableRef var = context->variableByName($1);
449     if (var)
450     $$ = var;
451     else {
452 schoenebeck 2888 PARSE_ERR(@1, (String("No variable declared with name '") + $1 + "'.").c_str());
453 schoenebeck 2581 $$ = new IntLiteral(0);
454     }
455     }
456     | VARIABLE '[' expr ']' {
457     const char* name = $1;
458     VariableRef var = context->variableByName(name);
459     if (!var) {
460 schoenebeck 2888 PARSE_ERR(@1, (String("No variable declared with name '") + name + "'.").c_str());
461 schoenebeck 2581 $$ = new IntLiteral(0);
462     } else if (var->exprType() != INT_ARR_EXPR) {
463 schoenebeck 2888 PARSE_ERR(@2, (String("Variable '") + name + "' is not an array variable.").c_str());
464 schoenebeck 2581 $$ = new IntLiteral(0);
465     } else if ($3->exprType() != INT_EXPR) {
466 schoenebeck 2888 PARSE_ERR(@3, (String("Array variable '") + name + "' accessed with non integer expression.").c_str());
467 schoenebeck 2581 $$ = new IntLiteral(0);
468     } else {
469     $$ = new IntArrayElement(var, $3);
470     }
471     }
472     | '(' expr ')' {
473     $$ = $2;
474     }
475     | functioncall {
476     $$ = $1;
477     }
478     | '-' unary_expr {
479     $$ = new Neg($2);
480     }
481 schoenebeck 2935 | BITWISE_NOT unary_expr {
482     if ($2->exprType() != INT_EXPR) {
483     PARSE_ERR(@2, (String("Right operand of bitwise operator '.not.' must be an integer expression, is ") + typeStr($2->exprType()) + " though.").c_str());
484     $$ = new IntLiteral(0);
485     } else {
486     $$ = new BitwiseNot($2);
487     }
488     }
489 schoenebeck 2581 | NOT unary_expr {
490     if ($2->exprType() != INT_EXPR) {
491 schoenebeck 2888 PARSE_ERR(@2, (String("Right operand of operator 'not' must be an integer expression, is ") + typeStr($2->exprType()) + " though.").c_str());
492 schoenebeck 2581 $$ = new IntLiteral(0);
493     } else {
494     $$ = new Not($2);
495     }
496     }
497    
498     expr:
499     concat_expr
500    
501     concat_expr:
502 schoenebeck 2935 logical_or_expr
503     | concat_expr '&' logical_or_expr {
504 schoenebeck 2581 ExpressionRef lhs = $1;
505     ExpressionRef rhs = $3;
506     if (lhs->isConstExpr() && rhs->isConstExpr()) {
507     $$ = new StringLiteral(
508     lhs->evalCastToStr() + rhs->evalCastToStr()
509     );
510     } else {
511     $$ = new ConcatString(lhs, rhs);
512     }
513     }
514    
515 schoenebeck 2935 logical_or_expr:
516     logical_and_expr
517     | logical_or_expr OR logical_and_expr {
518 schoenebeck 2581 ExpressionRef lhs = $1;
519     ExpressionRef rhs = $3;
520     if (lhs->exprType() != INT_EXPR) {
521 schoenebeck 2888 PARSE_ERR(@1, (String("Left operand of operator 'or' must be an integer expression, is ") + typeStr(lhs->exprType()) + " though.").c_str());
522 schoenebeck 2581 $$ = new IntLiteral(0);
523     } else if (rhs->exprType() != INT_EXPR) {
524 schoenebeck 2888 PARSE_ERR(@3, (String("Right operand of operator 'or' must be an integer expression, is ") + typeStr(rhs->exprType()) + " though.").c_str());
525 schoenebeck 2581 $$ = new IntLiteral(0);
526     } else {
527     $$ = new Or(lhs, rhs);
528     }
529     }
530    
531 schoenebeck 2935 logical_and_expr:
532     bitwise_or_expr {
533 schoenebeck 2581 $$ = $1;
534     }
535 schoenebeck 2935 | logical_and_expr AND bitwise_or_expr {
536 schoenebeck 2581 ExpressionRef lhs = $1;
537     ExpressionRef rhs = $3;
538     if (lhs->exprType() != INT_EXPR) {
539 schoenebeck 2888 PARSE_ERR(@1, (String("Left operand of operator 'and' must be an integer expression, is ") + typeStr(lhs->exprType()) + " though.").c_str());
540 schoenebeck 2581 $$ = new IntLiteral(0);
541     } else if (rhs->exprType() != INT_EXPR) {
542 schoenebeck 2888 PARSE_ERR(@3, (String("Right operand of operator 'and' must be an integer expression, is ") + typeStr(rhs->exprType()) + " though.").c_str());
543 schoenebeck 2581 $$ = new IntLiteral(0);
544     } else {
545     $$ = new And(lhs, rhs);
546     }
547     }
548    
549 schoenebeck 2935 bitwise_or_expr:
550     bitwise_and_expr
551     | bitwise_or_expr BITWISE_OR bitwise_and_expr {
552     ExpressionRef lhs = $1;
553     ExpressionRef rhs = $3;
554     if (lhs->exprType() != INT_EXPR) {
555     PARSE_ERR(@1, (String("Left operand of bitwise operator '.or.' must be an integer expression, is ") + typeStr(lhs->exprType()) + " though.").c_str());
556     $$ = new IntLiteral(0);
557     } else if (rhs->exprType() != INT_EXPR) {
558     PARSE_ERR(@3, (String("Right operand of bitwise operator '.or.' must be an integer expression, is ") + typeStr(rhs->exprType()) + " though.").c_str());
559     $$ = new IntLiteral(0);
560     } else {
561     $$ = new BitwiseOr(lhs, rhs);
562     }
563     }
564    
565     bitwise_and_expr:
566     rel_expr {
567     $$ = $1;
568     }
569     | bitwise_and_expr BITWISE_AND rel_expr {
570     ExpressionRef lhs = $1;
571     ExpressionRef rhs = $3;
572     if (lhs->exprType() != INT_EXPR) {
573     PARSE_ERR(@1, (String("Left operand of bitwise operator '.and.' must be an integer expression, is ") + typeStr(lhs->exprType()) + " though.").c_str());
574     $$ = new IntLiteral(0);
575     } else if (rhs->exprType() != INT_EXPR) {
576     PARSE_ERR(@3, (String("Right operand of bitwise operator '.and.' must be an integer expression, is ") + typeStr(rhs->exprType()) + " though.").c_str());
577     $$ = new IntLiteral(0);
578     } else {
579     $$ = new BitwiseAnd(lhs, rhs);
580     }
581     }
582    
583 schoenebeck 2581 rel_expr:
584     add_expr
585     | rel_expr '<' add_expr {
586     ExpressionRef lhs = $1;
587     ExpressionRef rhs = $3;
588     if (lhs->exprType() != INT_EXPR) {
589 schoenebeck 2888 PARSE_ERR(@1, (String("Left operand of operator '<' must be an integer expression, is ") + typeStr(lhs->exprType()) + " though.").c_str());
590 schoenebeck 2581 $$ = new IntLiteral(0);
591     } else if (rhs->exprType() != INT_EXPR) {
592 schoenebeck 2888 PARSE_ERR(@3, (String("Right operand of operator '<' must be an integer expression, is ") + typeStr(rhs->exprType()) + " though.").c_str());
593 schoenebeck 2581 $$ = new IntLiteral(0);
594     } else {
595     $$ = new Relation(lhs, Relation::LESS_THAN, rhs);
596     }
597     }
598     | rel_expr '>' add_expr {
599     ExpressionRef lhs = $1;
600     ExpressionRef rhs = $3;
601     if (lhs->exprType() != INT_EXPR) {
602 schoenebeck 2888 PARSE_ERR(@1, (String("Left operand of operator '>' must be an integer expression, is ") + typeStr(lhs->exprType()) + " though.").c_str());
603 schoenebeck 2581 $$ = new IntLiteral(0);
604     } else if (rhs->exprType() != INT_EXPR) {
605 schoenebeck 2888 PARSE_ERR(@3, (String("Right operand of operator '>' must be an integer expression, is ") + typeStr(rhs->exprType()) + " though.").c_str());
606 schoenebeck 2581 $$ = new IntLiteral(0);
607     } else {
608     $$ = new Relation(lhs, Relation::GREATER_THAN, rhs);
609     }
610     }
611     | rel_expr LE add_expr {
612     ExpressionRef lhs = $1;
613     ExpressionRef rhs = $3;
614     if (lhs->exprType() != INT_EXPR) {
615 schoenebeck 2888 PARSE_ERR(@1, (String("Left operand of operator '<=' must be an integer expression, is ") + typeStr(lhs->exprType()) + " though.").c_str());
616 schoenebeck 2581 $$ = new IntLiteral(0);
617     } else if (rhs->exprType() != INT_EXPR) {
618 schoenebeck 2888 PARSE_ERR(@3, (String("Right operand of operator '<=' must be an integer expression, is ") + typeStr(rhs->exprType()) + " though.").c_str());
619 schoenebeck 2581 $$ = new IntLiteral(0);
620     } else {
621     $$ = new Relation(lhs, Relation::LESS_OR_EQUAL, rhs);
622     }
623     }
624     | rel_expr GE add_expr {
625     ExpressionRef lhs = $1;
626     ExpressionRef rhs = $3;
627     if (lhs->exprType() != INT_EXPR) {
628 schoenebeck 2888 PARSE_ERR(@1, (String("Left operand of operator '>=' must be an integer expression, is ") + typeStr(lhs->exprType()) + " though.").c_str());
629 schoenebeck 2581 $$ = new IntLiteral(0);
630     } else if (rhs->exprType() != INT_EXPR) {
631 schoenebeck 2888 PARSE_ERR(@3, (String("Right operand of operator '>=' must be an integer expression, is ") + typeStr(rhs->exprType()) + " though.").c_str());
632 schoenebeck 2581 $$ = new IntLiteral(0);
633     } else {
634     $$ = new Relation(lhs, Relation::GREATER_OR_EQUAL, rhs);
635     }
636     }
637     | rel_expr '=' add_expr {
638     $$ = new Relation($1, Relation::EQUAL, $3);
639     }
640     | rel_expr '#' add_expr {
641     $$ = new Relation($1, Relation::NOT_EQUAL, $3);
642     }
643    
644     add_expr:
645     mul_expr
646     | add_expr '+' mul_expr {
647     ExpressionRef lhs = $1;
648     ExpressionRef rhs = $3;
649     if (lhs->exprType() != INT_EXPR) {
650 schoenebeck 2888 PARSE_ERR(@1, (String("Left operand of operator '+' must be an integer expression, is ") + typeStr(lhs->exprType()) + " though.").c_str());
651 schoenebeck 2581 $$ = new IntLiteral(0);
652     } else if (rhs->exprType() != INT_EXPR) {
653 schoenebeck 2888 PARSE_ERR(@3, (String("Right operand of operator '+' must be an integer expression, is ") + typeStr(rhs->exprType()) + " though.").c_str());
654 schoenebeck 2581 $$ = new IntLiteral(0);
655     } else {
656     $$ = new Add(lhs,rhs);
657     }
658     }
659     | add_expr '-' mul_expr {
660     ExpressionRef lhs = $1;
661     ExpressionRef rhs = $3;
662     if (lhs->exprType() != INT_EXPR) {
663 schoenebeck 2888 PARSE_ERR(@1, (String("Left operand of operator '-' must be an integer expression, is ") + typeStr(lhs->exprType()) + " though.").c_str());
664 schoenebeck 2581 $$ = new IntLiteral(0);
665     } else if (rhs->exprType() != INT_EXPR) {
666 schoenebeck 2888 PARSE_ERR(@3, (String("Right operand of operator '-' must be an integer expression, is ") + typeStr(rhs->exprType()) + " though.").c_str());
667 schoenebeck 2581 $$ = new IntLiteral(0);
668     } else {
669     $$ = new Sub(lhs,rhs);
670     }
671     }
672    
673     mul_expr:
674     unary_expr
675     | mul_expr '*' unary_expr {
676     ExpressionRef lhs = $1;
677     ExpressionRef rhs = $3;
678     if (lhs->exprType() != INT_EXPR) {
679 schoenebeck 2888 PARSE_ERR(@1, (String("Left operand of operator '*' must be an integer expression, is ") + typeStr(lhs->exprType()) + " though.").c_str());
680 schoenebeck 2581 $$ = new IntLiteral(0);
681     } else if (rhs->exprType() != INT_EXPR) {
682 schoenebeck 2888 PARSE_ERR(@3, (String("Right operand of operator '*' must be an integer expression, is ") + typeStr(rhs->exprType()) + " though.").c_str());
683 schoenebeck 2581 $$ = new IntLiteral(0);
684     } else {
685     $$ = new Mul(lhs,rhs);
686     }
687     }
688     | mul_expr '/' unary_expr {
689     ExpressionRef lhs = $1;
690     ExpressionRef rhs = $3;
691     if (lhs->exprType() != INT_EXPR) {
692 schoenebeck 2888 PARSE_ERR(@1, (String("Left operand of operator '/' must be an integer expression, is ") + typeStr(lhs->exprType()) + " though.").c_str());
693 schoenebeck 2581 $$ = new IntLiteral(0);
694     } else if (rhs->exprType() != INT_EXPR) {
695 schoenebeck 2888 PARSE_ERR(@3, (String("Right operand of operator '/' must be an integer expression, is ") + typeStr(rhs->exprType()) + " though.").c_str());
696 schoenebeck 2581 $$ = new IntLiteral(0);
697     } else {
698     $$ = new Div(lhs,rhs);
699     }
700     }
701     | mul_expr MOD unary_expr {
702     ExpressionRef lhs = $1;
703     ExpressionRef rhs = $3;
704     if (lhs->exprType() != INT_EXPR) {
705 schoenebeck 2888 PARSE_ERR(@1, (String("Left operand of modulo operator must be an integer expression, is ") + typeStr(lhs->exprType()) + " though.").c_str());
706 schoenebeck 2581 $$ = new IntLiteral(0);
707     } else if (rhs->exprType() != INT_EXPR) {
708 schoenebeck 2888 PARSE_ERR(@3, (String("Right operand of modulo operator must be an integer expression, is ") + typeStr(rhs->exprType()) + " though.").c_str());
709 schoenebeck 2581 $$ = new IntLiteral(0);
710     } else {
711     $$ = new Mod(lhs,rhs);
712     }
713     }
714    
715     %%
716    
717     void InstrScript_error(YYLTYPE* locp, LinuxSampler::ParserContext* context, const char* err) {
718     //fprintf(stderr, "%d: %s\n", locp->first_line, err);
719 schoenebeck 2889 context->addErr(locp->first_line, locp->last_line, locp->first_column+1, locp->last_column+1, err);
720 schoenebeck 2581 }
721    
722     void InstrScript_warning(YYLTYPE* locp, LinuxSampler::ParserContext* context, const char* txt) {
723     //fprintf(stderr, "WRN %d: %s\n", locp->first_line, txt);
724 schoenebeck 2889 context->addWrn(locp->first_line, locp->last_line, locp->first_column+1, locp->last_column+1, txt);
725 schoenebeck 2581 }
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