blob: bb18298a02cefd8e34ba6d2f27aa692624e3e699 (
plain) (
blame)
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
|
// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include "tensor_spec.h"
#include <vespa/vespalib/stllike/string.h>
namespace vespalib::eval {
/**
* Helper class used to insert commas on the appropriate places in
* comma-separated textual lists. Can also be used to figure out when
* to expect commas when parsing text.
**/
struct CommaTracker {
bool first;
CommaTracker() noexcept : first(true) {}
CommaTracker(bool first_in) noexcept : first(first_in) {}
bool maybe_add_comma(vespalib::string &dst) {
if (first) {
first = false;
return false;
} else {
dst.push_back(',');
return true;
}
}
template <typename T>
bool maybe_eat_comma(T &ctx) {
if (first) {
first = false;
return false;
} else {
ctx.eat(',');
return true;
}
}
};
/**
* Convert the given string to a quoted string with escaped special characters.
**/
vespalib::string as_quoted_string(const vespalib::string &str);
/**
* Is this string a positive integer (dimension index)
**/
bool is_number(const vespalib::string &str);
/**
* Convert this string to a positive integer (dimension index)
**/
size_t as_number(const vespalib::string &str);
/**
* Convert a tensor spec address into a string on the form:
* '{dim1:label,dim2:index, ...}'
**/
vespalib::string as_string(const TensorSpec::Address &address);
}
|
