Annotation of parser3/src/types/pa_vconsole.h, revision 1.18
1.1 paf 1: /** @file
2: Parser: @b console class decl.
3:
1.18 ! moko 4: Copyright (c) 2001-2012 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:
1.18 ! moko 11: #define IDENT_PA_VCONSOLE_H "$Id: 2009-08-08 13:30:21 $"
1.1 paf 12:
13: // includes
14:
15: #include "pa_sapi.h"
16: #include "pa_common.h"
17: #include "pa_value.h"
18: #include "pa_string.h"
19:
20: // defines
21:
22: #define CONSOLE_CLASS_NAME "console"
1.14 misha 23: static const String console_class_name(CONSOLE_CLASS_NAME);
24:
1.1 paf 25: #define CONSOLE_LINE_NAME "line"
26:
27: /// console class
28: class VConsole: public Value {
29: public: // Value
30:
1.11 misha 31: const char* type() const { return CONSOLE_CLASS_NAME; }
1.1 paf 32: /// VConsole: 0
33: VStateless_class *get_class() { return 0; }
34:
1.15 misha 35: /// console: line, CLASS, CLASS_NAME
1.17 misha 36: Value* get_element(const String& aname) {
1.1 paf 37: // $line
38: if(aname==CONSOLE_LINE_NAME) {
39: char local_value[MAX_STRING];
1.15 misha 40: if(fgets(local_value, sizeof(local_value), stdin))
1.16 misha 41: return new VString(*new String(strdup(local_value), String::L_TAINTED));
1.1 paf 42:
43: return 0; // EOF
44: }
45:
1.14 misha 46: // $CLASS
47: if(aname==CLASS_NAME)
48: return this;
49:
50: // $CLASS_NAME
51: if(aname==CLASS_NAMETEXT)
52: return new VString(console_class_name);
53:
1.13 misha 54: throw Exception(PARSER_RUNTIME,
1.1 paf 55: &aname,
56: "reading of invalid field");
57: }
58:
1.14 misha 59: /// console: $line
1.17 misha 60: override const VJunction* put_element(const String& aname, Value* avalue, bool /*areplace*/) {
1.1 paf 61: // $line
62: if(aname==CONSOLE_LINE_NAME) {
1.12 misha 63: fused=true;
1.15 misha 64: puts(avalue->as_string().cstr());
1.2 paf 65: fflush(stdout);
1.1 paf 66:
1.6 paf 67: return PUT_ELEMENT_REPLACED_ELEMENT;
1.1 paf 68: }
69:
1.13 misha 70: throw Exception(PARSER_RUNTIME,
1.1 paf 71: &aname,
72: "writing to invalid field");
73: }
74:
1.12 misha 75: bool was_used(){
76: return fused;
77: }
78:
1.1 paf 79: public: // usage
80:
1.12 misha 81: VConsole() {
82: fused=false;
83: }
1.1 paf 84:
1.12 misha 85: private:
86: bool fused;
1.1 paf 87: };
88:
89: #endif
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