mirror of https://github.com/arendst/Tasmota.git
49 lines
1.5 KiB
C++
49 lines
1.5 KiB
C++
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/********************************************************************
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** Copyright (c) 2018-2020 Guan Wenliang
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** This file is part of the Berry default interpreter.
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** skiars@qq.com, https://github.com/Skiars/berry
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** See Copyright Notice in the LICENSE file or at
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** https://github.com/Skiars/berry/blob/master/LICENSE
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********************************************************************/
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#include "coc_string.h"
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#include <map>
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namespace coc {
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uint32_t hashcode(const std::string &string)
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{
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size_t len = string.size();
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const char *str = string.data();
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uint32_t hash = 2166136261u;
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while (len--)
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hash = (hash ^ (unsigned char)*str++) * 16777619u;
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return hash;
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}
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std::string escape_operator(const std::string &string)
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{
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int c = string[0];
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if (string == "..")
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return "opt_connect";
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if (c == '.')
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return "dot_" + string.substr(1);
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if (isalpha(c) || c == '_')
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return string;
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const static std::map<std::string, std::string> tab = {
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{ "+", "opt_add" }, { "-", "opt_sub" },
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{ "*", "opt_mul" }, { "/", "opt_div" },
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{ "%", "opt_mod" }, { "&", "opt_and" },
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{ "^", "opt_xor" }, { "|", "opt_or" },
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{ "<", "opt_lt" }, { ">", "opt_gt" },
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{ "<=", "opt_le" }, { ">=", "opt_ge" },
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{ "==", "opt_eq" }, { "!=", "opt_neq" },
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{ "<<", "opt_shl" }, { ">>", "opt_shr" },
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{ "-*", "opt_neg" }, { "~", "opt_flip" },
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{ "()", "opt_call" }
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};
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auto it = tab.find(string);
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return it != tab.end() ? it->second : string;
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}
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}
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