diff options
Diffstat (limited to 'cutl/details/boost/regex/v4/basic_regex_parser.hpp')
| -rw-r--r-- | cutl/details/boost/regex/v4/basic_regex_parser.hpp | 125 |
1 files changed, 91 insertions, 34 deletions
diff --git a/cutl/details/boost/regex/v4/basic_regex_parser.hpp b/cutl/details/boost/regex/v4/basic_regex_parser.hpp index 63475e8..9182da2 100644 --- a/cutl/details/boost/regex/v4/basic_regex_parser.hpp +++ b/cutl/details/boost/regex/v4/basic_regex_parser.hpp @@ -191,6 +191,7 @@ void basic_regex_parser<charT, traits>::fail(regex_constants::error_type error_c this->m_pdata->m_status = error_code; m_position = m_end; // don't bother parsing anything else +#ifndef BOOST_NO_TEMPLATED_ITERATOR_CONSTRUCTORS // // Augment error message with the regular expression text: // @@ -200,9 +201,9 @@ void basic_regex_parser<charT, traits>::fail(regex_constants::error_type error_c if(error_code != regex_constants::error_empty) { if((start_pos != 0) || (end_pos != (m_end - m_base))) - message += " The error occured while parsing the regular expression fragment: '"; + message += " The error occurred while parsing the regular expression fragment: '"; else - message += " The error occured while parsing the regular expression: '"; + message += " The error occurred while parsing the regular expression: '"; if(start_pos != end_pos) { message += std::string(m_base + start_pos, m_base + position); @@ -211,6 +212,7 @@ void basic_regex_parser<charT, traits>::fail(regex_constants::error_type error_c } message += "'."; } +#endif #ifndef BOOST_NO_EXCEPTIONS if(0 == (this->flags() & regex_constants::no_except)) @@ -367,7 +369,7 @@ bool basic_regex_parser<charT, traits>::parse_extended() while((m_position != m_end) && !is_separator(*m_position++)){} return true; } - // Otherwise fall through: + BOOST_FALLTHROUGH; default: result = parse_literal(); break; @@ -621,7 +623,7 @@ bool basic_regex_parser<charT, traits>::parse_basic_escape() { case 'w': negate = false; - // fall through: + BOOST_FALLTHROUGH; case 'W': { basic_char_set<charT, traits> char_set; @@ -638,7 +640,7 @@ bool basic_regex_parser<charT, traits>::parse_basic_escape() } case 's': negate = false; - // fall through: + BOOST_FALLTHROUGH; case 'S': return add_emacs_code(negate); case 'c': @@ -660,17 +662,22 @@ template <class charT, class traits> bool basic_regex_parser<charT, traits>::parse_extended_escape() { ++m_position; + if(m_position == m_end) + { + fail(regex_constants::error_escape, m_position - m_base, "Incomplete escape sequence found."); + return false; + } bool negate = false; // in case this is a character class escape: \w \d etc switch(this->m_traits.escape_syntax_type(*m_position)) { case regex_constants::escape_type_not_class: negate = true; - // fall through: + BOOST_FALLTHROUGH; case regex_constants::escape_type_class: { escape_type_class_jump: - typedef typename traits::char_class_type mask_type; - mask_type m = this->m_traits.lookup_classname(m_position, m_position+1); + typedef typename traits::char_class_type m_type; + m_type m = this->m_traits.lookup_classname(m_position, m_position+1); if(m != 0) { basic_char_set<charT, traits> char_set; @@ -735,7 +742,7 @@ escape_type_class_jump: break; case regex_constants::escape_type_not_property: negate = true; - // fall through: + BOOST_FALLTHROUGH; case regex_constants::escape_type_property: { ++m_position; @@ -894,7 +901,7 @@ escape_type_class_jump: case regex_constants::escape_type_control_v: if(0 == (this->flags() & (regbase::main_option_type | regbase::no_perl_ex))) goto escape_type_class_jump; - // fallthrough: + BOOST_FALLTHROUGH; default: this->append_literal(unescape_character()); break; @@ -941,7 +948,8 @@ bool basic_regex_parser<charT, traits>::parse_repeat(std::size_t low, std::size_ ++m_position; } // for perl regexes only check for pocessive ++ repeats. - if((0 == (this->flags() & regbase::main_option_type)) + if((m_position != m_end) + && (0 == (this->flags() & regbase::main_option_type)) && (this->m_traits.syntax_type(*m_position) == regex_constants::syntax_plus)) { pocessive = true; @@ -1025,13 +1033,14 @@ bool basic_regex_parser<charT, traits>::parse_repeat(std::size_t low, std::size_ { // // Check for illegal following quantifier, we have to do this here, because - // the extra states we insert below circumvents are usual error checking :-( + // the extra states we insert below circumvents our usual error checking :-( // switch(this->m_traits.syntax_type(*m_position)) { case regex_constants::syntax_star: case regex_constants::syntax_plus: case regex_constants::syntax_question: + case regex_constants::syntax_open_brace: fail(regex_constants::error_badrepeat, m_position - m_base); return false; } @@ -1061,26 +1070,46 @@ bool basic_regex_parser<charT, traits>::parse_repeat_range(bool isbasic) // skip whitespace: while((m_position != m_end) && this->m_traits.isctype(*m_position, this->m_mask_space)) ++m_position; - // fail if at end: if(this->m_position == this->m_end) { - fail(regex_constants::error_brace, this->m_position - this->m_base, incomplete_message); - return false; + if(this->flags() & (regbase::main_option_type | regbase::no_perl_ex)) + { + fail(regex_constants::error_brace, this->m_position - this->m_base, incomplete_message); + return false; + } + // Treat the opening '{' as a literal character, rewind to start of error: + --m_position; + while(this->m_traits.syntax_type(*m_position) != regex_constants::syntax_open_brace) --m_position; + return parse_literal(); } // get min: v = this->m_traits.toi(m_position, m_end, 10); // skip whitespace: - while((m_position != m_end) && this->m_traits.isctype(*m_position, this->m_mask_space)) - ++m_position; if(v < 0) { - fail(regex_constants::error_badbrace, this->m_position - this->m_base); - return false; + if(this->flags() & (regbase::main_option_type | regbase::no_perl_ex)) + { + fail(regex_constants::error_brace, this->m_position - this->m_base, incomplete_message); + return false; + } + // Treat the opening '{' as a literal character, rewind to start of error: + --m_position; + while(this->m_traits.syntax_type(*m_position) != regex_constants::syntax_open_brace) --m_position; + return parse_literal(); } - else if(this->m_position == this->m_end) + while((m_position != m_end) && this->m_traits.isctype(*m_position, this->m_mask_space)) + ++m_position; + if(this->m_position == this->m_end) { - fail(regex_constants::error_brace, this->m_position - this->m_base, incomplete_message); - return false; + if(this->flags() & (regbase::main_option_type | regbase::no_perl_ex)) + { + fail(regex_constants::error_brace, this->m_position - this->m_base, incomplete_message); + return false; + } + // Treat the opening '{' as a literal character, rewind to start of error: + --m_position; + while(this->m_traits.syntax_type(*m_position) != regex_constants::syntax_open_brace) --m_position; + return parse_literal(); } min = v; // see if we have a comma: @@ -1093,12 +1122,19 @@ bool basic_regex_parser<charT, traits>::parse_repeat_range(bool isbasic) ++m_position; if(this->m_position == this->m_end) { - fail(regex_constants::error_brace, this->m_position - this->m_base, incomplete_message); - return false; + if(this->flags() & (regbase::main_option_type | regbase::no_perl_ex)) + { + fail(regex_constants::error_brace, this->m_position - this->m_base, incomplete_message); + return false; + } + // Treat the opening '{' as a literal character, rewind to start of error: + --m_position; + while(this->m_traits.syntax_type(*m_position) != regex_constants::syntax_open_brace) --m_position; + return parse_literal(); } // get the value if any: v = this->m_traits.toi(m_position, m_end, 10); - max = (v >= 0) ? v : (std::numeric_limits<std::size_t>::max)(); + max = (v >= 0) ? (std::size_t)v : (std::numeric_limits<std::size_t>::max)(); } else { @@ -1111,8 +1147,15 @@ bool basic_regex_parser<charT, traits>::parse_repeat_range(bool isbasic) // OK now check trailing }: if(this->m_position == this->m_end) { - fail(regex_constants::error_brace, this->m_position - this->m_base, incomplete_message); - return false; + if(this->flags() & (regbase::main_option_type | regbase::no_perl_ex)) + { + fail(regex_constants::error_brace, this->m_position - this->m_base, incomplete_message); + return false; + } + // Treat the opening '{' as a literal character, rewind to start of error: + --m_position; + while(this->m_traits.syntax_type(*m_position) != regex_constants::syntax_open_brace) --m_position; + return parse_literal(); } if(isbasic) { @@ -1135,8 +1178,10 @@ bool basic_regex_parser<charT, traits>::parse_repeat_range(bool isbasic) ++m_position; else { - fail(regex_constants::error_brace, this->m_position - this->m_base, incomplete_message); - return false; + // Treat the opening '{' as a literal character, rewind to start of error: + --m_position; + while(this->m_traits.syntax_type(*m_position) != regex_constants::syntax_open_brace) --m_position; + return parse_literal(); } // // finally go and add the repeat, unless error: @@ -1381,8 +1426,8 @@ bool basic_regex_parser<charT, traits>::parse_inner_set(basic_char_set<charT, tr ++name_first; negated = true; } - typedef typename traits::char_class_type mask_type; - mask_type m = this->m_traits.lookup_classname(name_first, name_last); + typedef typename traits::char_class_type m_type; + m_type m = this->m_traits.lookup_classname(name_first, name_last); if(m == 0) { if(char_set.empty() && (name_last - name_first == 1)) @@ -1950,7 +1995,7 @@ bool basic_regex_parser<charT, traits>::parse_perl_extension() { case regex_constants::syntax_or: m_mark_reset = m_mark_count; - // fall through: + BOOST_FALLTHROUGH; case regex_constants::syntax_colon: // // a non-capturing mark: @@ -2087,6 +2132,14 @@ insert_recursion: return false; } v = this->m_traits.toi(m_position, m_end, 10); + if(m_position == m_end) + { + // Rewind to start of (? sequence: + --m_position; + while(this->m_traits.syntax_type(*m_position) != regex_constants::syntax_open_mark) --m_position; + fail(regex_constants::error_perl_extension, m_position - m_base); + return false; + } if(*m_position == charT('R')) { if(++m_position == m_end) @@ -2490,9 +2543,11 @@ option_group_jump: this->m_pdata->m_data.align(); re_jump* jmp = static_cast<re_jump*>(this->getaddress(jump_offset)); jmp->alt.i = this->m_pdata->m_data.size() - this->getoffset(jmp); - if(this->m_last_state == jmp) + if((this->m_last_state == jmp) && (markid != -2)) { - // Oops... we didn't have anything inside the assertion: + // Oops... we didn't have anything inside the assertion. + // Note we don't get here for negated forward lookahead as (?!) + // does have some uses. // Rewind to start of (? sequence: --m_position; while(this->m_traits.syntax_type(*m_position) != regex_constants::syntax_open_mark) --m_position; @@ -2711,6 +2766,8 @@ regex_constants::syntax_option_type basic_regex_parser<charT, traits>::parse_opt } } while(!breakout); + + breakout = false; if(*m_position == static_cast<charT>('-')) { |