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add ignore_header setup option, add unit tests for parsing by header, add string_view to possible conversion values

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This commit is contained in:
ado
2022-03-27 21:04:02 +02:00
parent 45d166f93d
commit a8fa5c753c
69 changed files with 4194 additions and 33 deletions
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27
include/ss/parser.hpp
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@@ -25,15 +25,19 @@ class parser {
constexpr static bool quoted_multiline_enabled =
multiline::enabled && setup<Matchers...>::quote::enabled;
constexpr static bool ignore_header = setup<Matchers...>::ignore_header;
public:
parser(const std::string& file_name,
const std::string& delim = ss::default_delimiter)
: file_name_{file_name}, reader_{file_name_, delim} {
if (reader_.file_) {
read_line();
// TODO if header reading enabled
header_ = reader_.get_next_row();
// TODO if ignore_header defined ignore first line
if constexpr (ignore_header) {
ignore_next();
} else {
header_ = reader_.get_next_row();
}
} else {
set_error_file_not_open();
eof_ = true;
@@ -102,6 +106,11 @@ public:
template <typename... Ts>
void use_fields(const Ts&... fields_args) {
if constexpr (ignore_header) {
set_error_header_ignored();
return;
}
if (!valid()) {
return;
}
@@ -449,6 +458,18 @@ private:
}
}
void set_error_header_ignored() {
if constexpr (string_error) {
error_.append(file_name_)
.append(": \"")
.append("the header row is ignored within the setup, it cannot "
"be used")
.append("\"");
} else {
error_ = true;
}
}
void set_error_invalid_field(const std::string& field) {
if constexpr (string_error) {
error_.append(file_name_)