eldritch horrors
feebecd60b
otherwise lix may crash when e.g. nix search receives invalid regex. we now also give better error messages for regex errors during eval. fixes #803 Change-Id: Icc7c578ff488ba520efac5d898572ccf4486e9a8
27 lines
737 B
C++
27 lines
737 B
C++
#include "lix/libutil/git.hh"
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#include "regex.hh"
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#include <regex>
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namespace nix {
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namespace git {
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std::optional<LsRemoteRefLine> parseLsRemoteLine(std::string_view line)
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{
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const static std::regex line_regex = regex::parse("^(ref: *)?([^\\s]+)(?:\\t+(.*))?$");
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std::match_results<std::string_view::const_iterator> match;
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if (!std::regex_match(line.cbegin(), line.cend(), match, line_regex))
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return std::nullopt;
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return LsRemoteRefLine {
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.kind = match[1].length() == 0
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? LsRemoteRefLine::Kind::Object
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: LsRemoteRefLine::Kind::Symbolic,
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.target = match[2],
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.reference = match[3].length() == 0 ? std::nullopt : std::optional<std::string>{ match[3] }
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};
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}
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}
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}
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