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[skip ci] Make multiline restricted functionality work, fix line numbers update

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This commit is contained in:
ado 2023-08-14 01:12:15 +02:00
parent eb8f205300
commit 397cf21d18
2 changed files with 148 additions and 28 deletions
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174
include/ss/parser.hpp
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@ -14,6 +14,7 @@
#include "restrictions.hpp" #include "restrictions.hpp"
#include <cstdlib> #include <cstdlib>
#include <cstring> #include <cstring>
#include <iostream>
#include <optional> #include <optional>
#include <string> #include <string>
#include <vector> #include <vector>
@ -52,7 +53,8 @@ public:
} }
} else { } else {
handle_error_file_not_open(); handle_error_file_not_open();
eof_ = true; // TODO set within reader
reader_.eof_ = true;
} }
} }
@ -79,11 +81,13 @@ public:
} }
bool eof() const { bool eof() const {
return eof_; return reader_.eof_;
} }
// TODO update
bool ignore_next() { bool ignore_next() {
return reader_.read_next(); reader_.read_next();
return reader_.eof_;
} }
template <typename T, typename... Ts> template <typename T, typename... Ts>
@ -101,7 +105,7 @@ public:
// TODO update // TODO update
reader_.clear_error(); reader_.clear_error();
if (eof_) { if (reader_.eof_) {
handle_error_eof_reached(); handle_error_eof_reached();
return {}; return {};
} }
@ -638,7 +642,7 @@ private:
//////////////// ////////////////
void read_line() { void read_line() {
eof_ = !reader_.read_next(); reader_.read_next();
} }
//////////////// ////////////////
@ -852,6 +856,7 @@ private:
// just spacing // just spacing
// TODO handle \r\n // TODO handle \r\n
if (*curr == '\n' || *curr == '\r') { if (*curr == '\n' || *curr == '\r') {
++line_number_;
return {0, false}; return {0, false};
} }
@ -880,6 +885,18 @@ private:
} }
return; return;
} }
if (curr[1] == '\n') {
// TODO update
++line_number_;
if constexpr (multiline::size > 0) {
handle_line_increment();
if (multiline_limit_reached()) {
return;
}
}
}
shift_and_jump_escape(); shift_and_jump_escape();
} }
} }
@ -914,6 +931,7 @@ private:
} }
shift_and_set_shifted_current(); shift_and_set_shifted_current();
if constexpr (!is_const_line) { if constexpr (!is_const_line) {
++escaped_; ++escaped_;
} }
@ -932,7 +950,7 @@ private:
// TODO check attribute // TODO check attribute
__attribute__((always_inline)) void check_buff_end() { __attribute__((always_inline)) void check_buff_end() {
if (curr_ == end_) { if (curr_ >= end_) {
auto old_buff = buff_; auto old_buff = buff_;
if (last_read_) { if (last_read_) {
@ -954,7 +972,78 @@ private:
} }
} }
void handle_error_empty_line() {
constexpr static auto error_msg = "line empty";
if constexpr (string_error) {
error_.clear();
error_.append(error_msg);
} else if constexpr (throw_on_error) {
throw ss::exception{error_msg};
} else {
error_ = true;
}
}
void handle_error_multiline_limit_reached() {
constexpr static auto error_msg = "multiline limit reached";
if constexpr (string_error) {
error_.clear();
error_.append(error_msg);
} else if constexpr (throw_on_error) {
throw ss::exception{error_msg};
} else {
error_ = true;
}
}
void go_to_next_line() {
while (*curr_ != '\n') {
++curr_;
}
}
bool multiline_limit_reached() {
if constexpr (multiline::size > 0) {
if (new_lines_ > multiline::size) {
return true;
}
}
return false;
}
// TODO update name
void handle_line_increment() {
if constexpr (multiline::size > 0) {
new_lines_++;
if (new_lines_ > multiline::size) {
handle_error_multiline_limit_reached();
}
}
}
void parse_next_line() { void parse_next_line() {
if constexpr (multiline::size > 0) {
new_lines_ = 0;
}
// TODO handle
if (*curr_ == '\n') {
++line_number_;
check_buff_end();
handle_error_empty_line();
return;
}
if (*curr_ == '\r' && *(curr_ + 1) == '\n') {
++line_number_;
++curr_;
check_buff_end();
handle_error_empty_line();
return;
}
while (true) { while (true) {
if constexpr (quote::enabled || escape::enabled) { if constexpr (quote::enabled || escape::enabled) {
escaped_ = 0; escaped_ = 0;
@ -971,10 +1060,20 @@ private:
if (!quote::match(*curr_)) { if (!quote::match(*curr_)) {
// end of line // end of line
if constexpr (!multiline::enabled) { if constexpr (!multiline::enabled) {
// TODO test \r\n // TODO update to \r\n
if (*curr_ == '\n' || *curr_ == '\r') { if (*curr_ == '\n' || *curr_ == '\r') {
++line_number_;
throw "unterminated quote"; throw "unterminated quote";
} }
} else if constexpr (multiline::size > 0) {
// TODO update to \r\n
if (*curr_ == '\n') {
++line_number_;
handle_line_increment();
if (multiline_limit_reached()) {
return;
}
}
} }
if constexpr (escape::enabled) { if constexpr (escape::enabled) {
@ -985,14 +1084,27 @@ private:
curr_[1] == '\r') { curr_[1] == '\r') {
// eol, unterminated escape // eol, unterminated escape
// eg: ... "hel\\n // eg: ... "hel\\n
++line_number_;
break; break;
} }
throw "unterminated escape"; throw "unterminated escape";
} else if constexpr (multiline::size >
0) {
if (curr_[1] == '\n' ||
(curr_[1] == '\r' &&
curr_[2] == '\n')) {
++line_number_;
handle_line_increment();
if (multiline_limit_reached()) {
return;
}
}
} }
// not eol // not eol
shift_and_jump_escape(); shift_and_jump_escape();
check_buff_end(); check_buff_end();
++curr_;
continue; continue;
} }
} }
@ -1005,6 +1117,9 @@ private:
auto [width, is_delim] = auto [width, is_delim] =
match_delimiter(curr_ + 1, delim_char_); match_delimiter(curr_ + 1, delim_char_);
if (multiline_limit_reached()) {
return;
}
// delimiter // delimiter
if (is_delim) { if (is_delim) {
@ -1039,30 +1154,26 @@ private:
// mismatched quote // mismatched quote
// eg: ...,"hel"lo,... -> error // eg: ...,"hel"lo,... -> error
go_to_next_line();
// go to next line, TODO update
while (*curr_ != '\n') {
++curr_;
}
if (throw_on_error) {
++curr_;
}
handle_error_mismatched_quote(); handle_error_mismatched_quote();
return; return;
} }
continue;
} }
} }
// not quoted // not quoted
begin_ = shifted_curr_ = curr_; begin_ = shifted_curr_ = curr_;
while (true) { while (true) {
// std::cout << "* " << *curr_ << std::endl;
auto [width, is_delim] = auto [width, is_delim] =
match_delimiter(curr_, delim_char_); match_delimiter(curr_, delim_char_);
if (multiline_limit_reached()) {
return;
}
if (!is_delim) { if (!is_delim) {
// not a delimiter // not a delimiter
@ -1071,7 +1182,7 @@ private:
shift_and_push(); shift_and_push();
// ++curr_; // ++curr_;
// TODO handle differently // TODO handle differently
if (curr_[0] == '\r') { if (*curr_ == '\r') {
++curr_; ++curr_;
} }
return; return;
@ -1092,7 +1203,7 @@ private:
} }
// read next line each time in order to set eof_ // read next line each time in order to set eof_
bool read_next() { void read_next() {
// TODO update division value // TODO update division value
if (buff_processed_ > buff_filled_ / 2) { if (buff_processed_ > buff_filled_ / 2) {
if (!last_read_) { if (!last_read_) {
@ -1110,19 +1221,27 @@ private:
split_data_.clear(); split_data_.clear();
begin_ = curr_; begin_ = curr_;
parse_next_line(); try {
// TODO check where to put this
// ++line_number_;
parse_next_line();
} catch (...) {
// TODO remove duplicate
++curr_;
buff_processed_ = curr_ - buff_;
if (last_read_ && curr_ >= end_) {
eof_ = true;
}
throw;
}
++curr_; ++curr_;
buff_processed_ = curr_ - buff_; buff_processed_ = curr_ - buff_;
// TODO check where to put this
++line_number_;
if (last_read_ && curr_ >= end_) { if (last_read_ && curr_ >= end_) {
return false; eof_ = true;
} }
return true;
} }
std::string delim_{}; std::string delim_{};
@ -1155,6 +1274,8 @@ private:
bool unterminated_quote_{true}; bool unterminated_quote_{true};
bool unterminated_escape_{true}; bool unterminated_escape_{true};
error_type error_; error_type error_;
size_t new_lines_{0};
bool eof_{false};
}; };
//////////////// ////////////////
@ -1166,7 +1287,6 @@ private:
reader reader_; reader reader_;
std::vector<std::string> header_; std::vector<std::string> header_;
std::string raw_header_; std::string raw_header_;
bool eof_{false};
}; };
} /* ss */ } /* ss */

2
test/test_parser.cpp
View File

@ -897,7 +897,7 @@ void test_multiline_restricted() {
out << "17,18,\"ju\\\n\\\n\\\n\\\\\n\nnk\"" << std::endl; out << "17,18,\"ju\\\n\\\n\\\n\\\\\n\nnk\"" << std::endl;
out << "19,20,just strings" << std::endl; out << "19,20,just strings" << std::endl;
} }
auto bad_lines = 15; auto bad_lines = 19;
auto num_errors = 0; auto num_errors = 0;
ss::parser<ss::multiline_restricted<2>, ss::quote<'"'>, ss::escape<'\\'>, ss::parser<ss::multiline_restricted<2>, ss::quote<'"'>, ss::escape<'\\'>,