1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
|
/* Project STARS
John DiCamillo Software Consulting
Copyright © 1997-2000. All Rights Reserved.
SUBSYSTEM: obelisk
FILE: reader.cpp
AUTHOR: John DiCamillo
OVERVIEW
========
Implementation of the Reader class
*/
#include "MemDebug.h"
#include "reader.h"
#include <stdio.h>
#include <fstream>
#include <ctype.h>
void Print(const char* fmt, ...);
// +-------------------------------------------------------------------+
Text
ConsoleReader::more()
{
// loop until the user types something
do {
printPrimaryPrompt();
fillInputBuffer();
} while (! *p);
return Text(p);
}
void
ConsoleReader::printPrimaryPrompt()
{
printf("- ");
}
void
ConsoleReader::fillInputBuffer()
{
fgets(buffer, 980, stdin);
p = buffer;
while (isspace(*p)) p++;
}
// +-------------------------------------------------------------------+
FileReader::FileReader(const char* fname)
: filename(fname), done(0)
{ }
Text
FileReader::more()
{
if (done) return Text();
std::fstream fin(filename, std::fstream::in);
if (!fin) {
Print("ERROR(Parse): Could not open file '%s'\n", filename);
return Text();
}
Text result;
char buf[1000], newline;
while (fin.get(buf, 1000)) {
result.append(buf);
fin.get(newline);
result.append(newline);
}
done = 1;
return result;
}
// +-------------------------------------------------------------------+
BlockReader::BlockReader(const char* block)
: data((char*) block), done(0), length(0)
{ }
BlockReader::BlockReader(const char* block, int len)
: data((char*) block), done(0), length(len)
{ }
Text
BlockReader::more()
{
if (done) return Text();
if (length) {
Text result(data, length);
done = 1;
return result;
}
else if (data) {
Text result(data);
done = 1;
return result;
}
done = 1;
return Text();
}
|
