source: trunk/FACT++/src/Readline.h@ 19285

Last change on this file since 19285 was 16877, checked in by tbretz, 12 years ago
Removed a stray debug output.
File size: 5.1 KB
Line 
1#ifndef FACT_Readline
2#define FACT_Readline
3
4#include <map>
5#include <string>
6#include <vector>
7#include <fstream>
8#include <iostream>
9
10class Readline
11{
12public:
13 static bool RedirectionWrapper(std::ostream &out, bool (*function)());
14
15protected:
16 /// A pointer to the unique instance of Readline to let the static
17 /// functions used as callback for readline call member function
18 /// with an object. This makes overwriting easier.
19 static Readline *This;
20
21private:
22 std::string fName; /// Filename for the history file compiled in the constructor
23 int fMaxLines; /// Maximum number of lines in the history file
24
25 std::ofstream fCommandLog;
26
27 std::string fLastLine; /// Last line adde to history
28
29 int fLine;
30 int fSection;
31 int fLabel;
32 static int fScriptDepth;
33 static bool fStopScript;
34
35 static std::string fExternalInput;
36
37 /// Static member function which are used to adapt readline to ncurses
38 static int rl_ncurses_getc(FILE *);
39 static int rl_ncurses_startup();
40 static void rl_ncurses_redisplay();
41 static int rl_ncurses_event_hook();
42 static void rl_ncurses_completion_display(char **matches, int num, int max);
43 static char **rl_ncurses_completion_function(const char *text, int start, int end);
44 static char *CompleteImp(const char* text, int state);
45
46
47protected:
48 static std::string fScript;
49
50 /// The non static implementations of the callback funtions above
51 virtual int Getc(FILE *);
52 virtual void Startup();
53 virtual void EventHook(bool newline=false);
54 virtual void Shutdown(const char *buf);
55 virtual void Redisplay();
56 virtual void CompletionDisplay(char **matches, int num, int max);
57
58 /// Functions dealing with auto completion
59 virtual char *Complete(const char* text, int state);
60 virtual char **Completion(const char *text, int start, int end);
61
62 /// Pointer to a list of possible matched for auto-completion
63 const std::vector<std::string> *fCompletion;
64 void SetCompletion(const std::vector<std::string> *v) { fCompletion = v; }
65 char **Complete(const std::vector<std::string> &v, const char *text);
66
67 ///
68 virtual void SetSection(int) { }
69 virtual void PrintReadlineError(const std::string &str);
70
71public:
72 Readline(const char *prgname);
73 virtual ~Readline();
74
75 // Access to readline
76 void BindKeySequence(const char *seq, int (*func)(int, int));
77
78 static bool DumpVariables();
79 static bool DumpFunctions();
80 static bool DumpFunmap();
81 static bool DumpHistory();
82
83 virtual bool PrintGeneralHelp();
84 virtual bool PrintCommands();
85 virtual bool PrintKeyBindings();
86
87 // History functions
88 std::string GetName() const { return fName; }
89
90 void AddToHistory(const std::string &str, int skip=2);
91 static bool ClearHistory();
92 std::vector<const char*> GetHistory() const;
93
94 void SetMaxSize(int lines) { fMaxLines = lines; }
95
96 // Prompting
97 void UpdatePrompt(const std::string &prompt) const;
98 void UpdatePrompt() const { UpdatePrompt(GetUpdatePrompt()); }
99
100 virtual bool PreProcess(const std::string &str);
101 virtual bool Process(const std::string &str);
102 virtual std::string GetUpdatePrompt() const { return ""; }
103 virtual bool PromptEOF(std::string &str);
104 virtual std::string Prompt(const std::string &prompt);
105 virtual void Run(const char *prompt=0);
106 static void Stop();
107 virtual bool ExecuteShellCommand(const std::string &cmd);
108 int Execute(const std::string &fname, const std::map<std::string,std::string> &args=std::map<std::string,std::string>());
109 bool IsStopped() const;
110 void ProcessLine(const std::string &str);
111 void SetLabel(int l) { fLabel = l; }
112 static void StopScript() { fStopScript = true; }
113 static bool IsScriptStopped() { return fStopScript; }
114 static int GetScriptDepth() { return fScriptDepth; }
115 static void SetScriptDepth(unsigned int d) { fScriptDepth=d; }
116 static void SetExternalInput(const std::string &inp) { fExternalInput = inp; }
117
118 static std::string GetScript() { return fScript; }
119 static std::string GetExternalInput() { return fExternalInput; }
120
121 int GetLine() const { return fLine; }
122 virtual std::string GetLinePrompt() const;
123
124 // Helper
125 static char *Compare(const std::string &str, const std::string &txt);
126 static char **CompletionMatches(const char *text, char *(*func)(const char*, int));
127
128 // I/O Streams
129 static FILE *SetStreamOut(FILE *f);
130 static FILE *SetStreamIn(FILE *f);
131
132 // Other global readline variables
133 static std::string GetPrompt();
134 static std::string GetBuffer();
135 static int GetAbsCursor();
136 static int GetCursor();
137 static int GetBufferLength();
138 static int GetLineLength();
139
140 // Screen size
141 static void Resize();
142 static void Resize(int w, int h);
143 int GetCols() const;
144 int GetRows() const;
145
146 static Readline *Instance() { return This; }
147
148 static void StaticPushHistory(const std::string &fname);
149 static std::string StaticPrompt(const std::string &prompt);
150 static void StaticPopHistory(const std::string &fname);
151};
152
153#endif
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