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
114
115
116
117
118
119
120
121
122
123
124
|
#include <iostream>
#include <seqan/arg_parse.h>
struct ModifyStringOptions
{
unsigned period;
unsigned rangeBegin, rangeEnd;
bool toUppercase;
bool toLowercase;
seqan2::CharString inputFileName;
ModifyStringOptions() :
period(1), rangeBegin(0), rangeEnd(0),toUppercase(false),
toLowercase(false)
{}
};
seqan2::ArgumentParser::ParseResult
parseCommandLine(ModifyStringOptions & options, int argc, char const ** argv)
{
// Setup ArgumentParser.
seqan2::ArgumentParser parser("modify_string");
// Define Options
addOption(parser, seqan2::ArgParseOption(
"I", "input-file",
"A text file that will printed with the modifications applied.",
seqan2::ArgParseArgument::INPUT_FILE));
setValidValues(parser, "input-file", "txt");
setRequired(parser, "input-file");
addOption(parser, seqan2::ArgParseOption(
"i", "period", "Period to use for the index.",
seqan2::ArgParseArgument::INTEGER, "INT"));
setMinValue(parser, "period", "1");
setDefaultValue(parser, "period", "1");
addOption(parser, seqan2::ArgParseOption(
"U", "uppercase", "Select to-uppercase as operation."));
addOption(parser, seqan2::ArgParseOption(
"L", "lowercase", "Select to-lowercase as operation."));
// Parse command line.
seqan2::ArgumentParser::ParseResult res = seqan2::parse(parser, argc, argv);
// Only extract options if the program will continue after parseCommandLine()
if (res != seqan2::ArgumentParser::PARSE_OK)
return res;
// Extract option values.
getOptionValue(options.period, parser, "period");
options.toUppercase = isSet(parser, "uppercase");
options.toLowercase = isSet(parser, "lowercase");
getOptionValue(options.inputFileName, parser, "input-file");
// If both to-uppercase and to-lowercase were selected then this is an error.
if (options.toUppercase && options.toLowercase)
{
std::cerr << "ERROR: You cannot specify both to-uppercase and to-lowercase!\n";
return seqan2::ArgumentParser::PARSE_ERROR;
}
return seqan2::ArgumentParser::PARSE_OK;
}
seqan2::CharString modifyString(seqan2::CharString const & text,
ModifyStringOptions const & options)
{
seqan2::CharString result;
if (options.toLowercase)
{
for (unsigned i = 0; i < length(text); ++i)
{
if (i % options.period == 0u)
appendValue(result, tolower(text[i]));
else
appendValue(result, text[i]);
}
}
else
{
for (unsigned i = 0; i < length(text); ++i)
{
if (i % options.period == 0u)
appendValue(result, toupper(text[i]));
else
appendValue(result, text[i]);
}
}
return result;
}
int main(int argc, char const ** argv)
{
// Parse the command line.
ModifyStringOptions options;
seqan2::ArgumentParser::ParseResult res = parseCommandLine(options, argc, argv);
// If parsing was not successful then exit with code 1 if there were errors.
// Otherwise, exit with code 0 (e.g. help was printed).
if (res != seqan2::ArgumentParser::PARSE_OK)
return res == seqan2::ArgumentParser::PARSE_ERROR;
std::fstream inFile(toCString(options.inputFileName), std::ios::binary | std::ios::in);
if (inFile.good())
{
std::cerr << "ERROR: Could not open input file " << options.inputFileName << '\n';
return 1;
}
seqan2::CharString text;
while (inFile.good())
{
char c = inFile.get();
if (inFile.good())
appendValue(text, c);
}
std::cout << modifyString(text, options);
return 0;
}
|
