|
|
| version 1.28, 2001/03/12 18:19:36 | version 1.31, 2001/03/12 21:18:00 |
|---|---|
| Line 7 | Line 7 |
| */ | */ |
| #include <string.h> | #include <string.h> |
| #include <math.h> | |
| #include "pa_request.h" | #include "pa_request.h" |
| #include "_root.h" | #include "_root.h" |
| #include "pa_vint.h" | |
| static void _if(Request& r, const String&, Array *params) { | static void _if(Request& r, const String&, Array *params) { |
| bool condition= | bool condition= |
| Line 129 static void _use(Request& r, const Strin | Line 131 static void _use(Request& r, const Strin |
| r.use_file(r.absolute(file)); | r.use_file(r.absolute(file)); |
| } | } |
| static void _for(Request& r, const String& method_name, Array *params) { | |
| // ^for[i;from-number;to-number-inclusive]{code}[delim] | |
| Pool& pool=r.pool(); | |
| const String& var_name=r.process(*static_cast<Value *>(params->get(0))).as_string(); | |
| int from=(int)r.process(*static_cast<Value *>(params->get(1))).get_double(); | |
| int to=(int)r.process(*static_cast<Value *>(params->get(2))).get_double(); | |
| Value& body_code=*static_cast<Value *>(params->get(3)); | |
| // forcing ^menu{this param type} | |
| r.fail_if_junction_(false, body_code, | |
| method_name, "body must be junction"); | |
| Value *delim_code=params->size()==3+1+1?static_cast<Value *>(params->get(3+1)):0; | |
| bool need_delim=false; | |
| int endless_loop_count=0; | |
| for(VInt *vint=new(pool) VInt(pool, from); vint->get_int()<=to; vint->inc()) { | |
| if(++endless_loop_count>=2001) // endless loop? | |
| R_THROW(0, 0, | |
| &method_name, | |
| "endless loop detected"); | |
| r.wcontext->put_element(var_name, vint); | |
| Value& processed_body=r.process(body_code); | |
| if(delim_code) { // delimiter set? | |
| const String *string=processed_body.get_string(); | |
| if(need_delim && string && string->size()) // need delim & iteration produced string? | |
| r.write_pass_lang(r.process(*delim_code)); | |
| need_delim=true; | |
| } | |
| r.write_pass_lang(processed_body); | |
| } | |
| } | |
| typedef double (*math_one_double_op_func_ptr)(double); | |
| static double round(double op) { return floor(op+0.5); } | |
| static double sign(double op) { return op > 0 ? 1 : ( op < 0 ? -1 : 0 ); } | |
| static void _math_one_double_op( | |
| Request& r, | |
| const String& method_name, Array *params, | |
| math_one_double_op_func_ptr func) { | |
| Pool& pool=r.pool(); | |
| Value& param=*static_cast<Value *>(params->get(0)); | |
| // forcing ^round(this param type) | |
| r.fail_if_junction_(false, param, | |
| method_name, "parameter must be expression"); | |
| Value& result=*new(pool) VDouble(pool, (*func)(r.process(param).get_double())); | |
| r.wcontext->write(result, String::Untaint_lang::NO /*always object, not string*/); | |
| } | |
| static void _round(Request& r, const String& method_name, Array *params) { | |
| _math_one_double_op(r, method_name, params, &round); | |
| } | |
| static void _floor(Request& r, const String& method_name, Array *params) { | |
| _math_one_double_op(r, method_name, params, &floor); | |
| } | |
| static void _ceiling(Request& r, const String& method_name, Array *params) { | |
| _math_one_double_op(r, method_name, params, &ceil); | |
| } | |
| static void _abs(Request& r, const String& method_name, Array *params) { | |
| _math_one_double_op(r, method_name, params, &fabs); | |
| } | |
| static void _sign(Request& r, const String& method_name, Array *params) { | |
| _math_one_double_op(r, method_name, params, &sign); | |
| } | |
| void initialize_root_class(Pool& pool, VClass& vclass) { | void initialize_root_class(Pool& pool, VClass& vclass) { |
| // ^if(condition){code-when-true} | // ^if(condition){code-when-true} |
| // ^if(condition){code-when-true}{code-when-false} | // ^if(condition){code-when-true}{code-when-false} |
| Line 148 void initialize_root_class(Pool& pool, V | Line 224 void initialize_root_class(Pool& pool, V |
| // ^use[file] | // ^use[file] |
| vclass.add_native_method("use", _use, 1, 1); | vclass.add_native_method("use", _use, 1, 1); |
| // ^for[i;from-number;to-number-inclusive]{code}[delim] | |
| vclass.add_native_method("for", _for, 3+1, 3+1+1); | |
| // math functions | |
| // ^round(expr) | |
| vclass.add_native_method("round", _round, 1, 1); | |
| // ^floor(expr) | |
| vclass.add_native_method("floor", _floor, 1, 1); | |
| // ^ceiling(expr) | |
| vclass.add_native_method("ceiling", _ceiling, 1, 1); | |
| // ^abs(expr) | |
| vclass.add_native_method("abs", _abs, 1, 1); | |
| // ^sign(expr) | |
| vclass.add_native_method("sign", _sign, 1, 1); | |
| } | } |