Annotation of parser3/src/types/pa_vconsole.h, revision 1.23
1.1 paf 1: /** @file
2: Parser: @b console class decl.
3:
1.22 moko 4: Copyright (c) 2001-2015 Art. Lebedev Studio (http://www.artlebedev.com)
1.1 paf 5: Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)
6: */
7:
8: #ifndef PA_VCONSOLE_H
9: #define PA_VCONSOLE_H
10:
1.23 ! moko 11: #define IDENT_PA_VCONSOLE_H "$Id: pa_vconsole.h,v 1.22 2015/10/26 01:22:01 moko Exp $"
1.1 paf 12:
13: // includes
14:
15: #include "pa_sapi.h"
16: #include "pa_common.h"
1.23 ! moko 17: #include "pa_vstateless_class.h"
1.1 paf 18: #include "pa_string.h"
19:
20: // defines
21:
22: #define CONSOLE_LINE_NAME "line"
23:
24: /// console class
1.23 ! moko 25: class VConsole: public VStateless_class {
1.1 paf 26: public: // Value
27:
1.23 ! moko 28: const char* type() const { return "console"; }
1.1 paf 29:
1.20 misha 30: /// console: line
1.17 misha 31: Value* get_element(const String& aname) {
1.23 ! moko 32: // CLASS, CLASS_NAME or method
! 33: if(Value* result=VStateless_class::get_element(aname))
! 34: return result;
! 35:
1.1 paf 36: // $line
37: if(aname==CONSOLE_LINE_NAME) {
38: char local_value[MAX_STRING];
1.15 misha 39: if(fgets(local_value, sizeof(local_value), stdin))
1.21 moko 40: return new VString(*new String(pa_strdup(local_value), String::L_TAINTED));
1.1 paf 41:
42: return 0; // EOF
43: }
44:
1.23 ! moko 45: throw Exception(PARSER_RUNTIME, &aname, "reading of invalid field");
1.1 paf 46: }
47:
1.14 misha 48: /// console: $line
1.19 moko 49: override const VJunction* put_element(const String& aname, Value* avalue) {
1.1 paf 50: // $line
51: if(aname==CONSOLE_LINE_NAME) {
1.12 misha 52: fused=true;
1.15 misha 53: puts(avalue->as_string().cstr());
1.2 paf 54: fflush(stdout);
1.1 paf 55:
1.6 paf 56: return PUT_ELEMENT_REPLACED_ELEMENT;
1.1 paf 57: }
58:
1.13 misha 59: throw Exception(PARSER_RUNTIME,
1.1 paf 60: &aname,
61: "writing to invalid field");
62: }
63:
1.12 misha 64: bool was_used(){
65: return fused;
66: }
67:
1.1 paf 68: public: // usage
69:
1.12 misha 70: VConsole() {
71: fused=false;
72: }
1.1 paf 73:
1.12 misha 74: private:
75: bool fused;
1.1 paf 76: };
77:
78: #endif
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