mirror of
https://github.com/matrix-construct/construct
synced 2024-08-25 02:52:09 +02:00
288 lines
5.8 KiB
C++
288 lines
5.8 KiB
C++
/*
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* charybdis: an advanced ircd.
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* inline/stringops.h: inlined string operations used in a few places
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*
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* Copyright (C) 2005-2016 Charybdis Development Team
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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* USA
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*/
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#include <RB_INC_BOOST_TOKENIZER_HPP
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/*
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* strip_colour - remove colour codes from a string
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* -asuffield (?)
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*/
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char *
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ircd::strip_colour(char *string)
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{
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char *c = string;
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char *c2 = string;
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char *last_non_space = NULL;
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/* c is source, c2 is target */
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for(; c && *c; c++)
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switch (*c)
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{
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case 3:
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if(rfc1459::is_digit(c[1]))
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{
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c++;
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if(rfc1459::is_digit(c[1]))
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c++;
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if(c[1] == ',' && rfc1459::is_digit(c[2]))
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{
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c += 2;
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if(rfc1459::is_digit(c[1]))
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c++;
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}
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}
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break;
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case 2:
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case 4:
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case 6:
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case 7:
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case 15:
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case 22:
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case 23:
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case 27:
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case 29:
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case 31:
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break;
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case 32:
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*c2++ = *c;
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break;
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default:
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*c2++ = *c;
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last_non_space = c2;
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break;
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}
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*c2 = '\0';
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if(last_non_space)
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*last_non_space = '\0';
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return string;
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}
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char *
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ircd::strip_unprintable(char *string)
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{
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char *c = string;
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char *c2 = string;
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char *last_non_space = NULL;
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/* c is source, c2 is target */
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for(; c && *c; c++)
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switch (*c)
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{
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case 3:
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if(rfc1459::is_digit(c[1]))
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{
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c++;
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if(rfc1459::is_digit(c[1]))
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c++;
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if(c[1] == ',' && rfc1459::is_digit(c[2]))
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{
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c += 2;
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if(rfc1459::is_digit(c[1]))
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c++;
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}
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}
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break;
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case 32:
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*c2++ = *c;
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break;
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default:
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if (*c < 32)
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break;
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*c2++ = *c;
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last_non_space = c2;
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break;
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}
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*c2 = '\0';
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if(last_non_space)
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*last_non_space = '\0';
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return string;
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}
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// This is from the old parse.c and does not ensure the trailing :is added
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// NOTE: Deprecated. Use formal grammar.
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char *
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ircd::reconstruct_parv(int parc, const char *parv[])
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{
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static char tmpbuf[BUFSIZE];
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rb_strlcpy(tmpbuf, parv[0], BUFSIZE);
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for (int i = 1; i < parc; i++)
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{
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rb_strlcat(tmpbuf, " ", BUFSIZE);
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rb_strlcat(tmpbuf, parv[i], BUFSIZE);
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}
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return tmpbuf;
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}
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std::string
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ircd::token(const std::string &str,
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const char *const &sep,
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const size_t &at)
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{
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using delim = boost::char_separator<char>;
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const delim d(sep);
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const boost::tokenizer<delim> view(str, d);
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size_t i(0);
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auto it(begin(view));
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for(; it != end(view); ++it, i++)
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if(i == at)
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return *it;
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if(str.empty())
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return str;
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// Moving the iterator may cause a parse, so there is no pre-check on the bounds;
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// the valid token is returned in the loop, and exiting the loop is an error.
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throw std::out_of_range("token out of range");
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}
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std::string
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ircd::token_last(const std::string &str,
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const char *const &sep)
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{
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using delim = boost::char_separator<char>;
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const delim d(sep);
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const boost::tokenizer<delim> view(str, d);
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auto it(begin(view));
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if(it == end(view))
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return str.empty()? str : throw std::out_of_range("token out of range");
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auto ret(it);
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while(it != end(view))
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ret = it++;
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return *ret;
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}
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size_t
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ircd::token_count(const std::string &str,
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const char *const &sep)
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{
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using delim = boost::char_separator<char>;
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const delim d(sep);
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const boost::tokenizer<delim> view(str, d);
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return std::distance(begin(view), end(view));
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}
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std::vector<std::string>
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ircd::tokens(const std::string &str,
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const char *const &sep,
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const size_t &reserve)
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{
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using delim = boost::char_separator<char>;
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std::vector<std::string> ret;
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ret.reserve(reserve);
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const delim d(sep);
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const boost::tokenizer<delim> view(str, d);
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std::copy(begin(view), end(view), std::back_inserter(ret));
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return ret;
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}
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void
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ircd::tokens(const std::string &str,
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const char *const &sep,
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const token_closure_string &closure)
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{
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using delim = boost::char_separator<char>;
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const delim d(sep);
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const boost::tokenizer<delim> view(str, d);
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std::for_each(begin(view), end(view), closure);
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}
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std::vector<char *>
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ircd::tokens(const char *const &str,
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const char *const &sep,
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char *const &buf,
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const size_t &max,
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const size_t &reserve)
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{
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std::vector<char *> ret;
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ret.reserve(reserve);
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rb_strlcpy(buf, str, max);
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tokens(buf, sep, [&ret]
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(char *const &token)
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{
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ret.emplace_back(token);
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});
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return ret;
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}
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void
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ircd::tokensa(const char *const &str,
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const char *const &sep,
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const token_closure_cstr &closure)
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{
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custom_ptr<char> cpy(strdup(str), std::free);
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tokens(cpy.get(), sep, closure);
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}
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void
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ircd::tokens(const char *const &str,
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const char *const &sep,
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const token_closure_cstr &closure)
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{
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const auto len(strlen(str));
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char buf[strlen(str) + 1];
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tokens(str, sep, buf, sizeof(buf), closure);
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}
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void
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ircd::tokens(const char *const &str,
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const char *const &sep,
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char *const &buf,
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const size_t &max,
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const token_closure_cstr &closure)
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{
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rb_strlcpy(buf, str, max);
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tokens(buf, sep, closure);
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}
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void
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ircd::tokens(char *const &str,
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const char *const &sep,
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const token_closure_cstr &closure)
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{
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char *ctx;
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char *tok(strtok_r(str, sep, &ctx)); do
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{
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closure(tok);
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}
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while((tok = strtok_r(NULL, sep, &ctx)) != NULL);
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}
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