-/***************************************************************************
- * Copyright (C) 2004 by Gerd v. Egidy *
- * info@intra2net.com *
- * *
- ***************************************************************************/
+/*
+The software in this package is distributed under the GNU General
+Public License version 2 (with a special exception described below).
+
+A copy of GNU General Public License (GPL) is included in this distribution,
+in the file COPYING.GPL.
+
+As a special exception, if other files instantiate templates or use macros
+or inline functions from this file, or you compile this file and link it
+with other works to produce a work based on this file, this file
+does not by itself cause the resulting work to be covered
+by the GNU General Public License.
+
+However the source code for this file must still be made available
+in accordance with section (3) of the GNU General Public License.
+
+This exception does not invalidate any other reasons why a work based
+on this file might be covered by the GNU General Public License.
+*/
+/** @file
+ * @brief collection of string tools (/ functions).
+ *
+ * contains a collection of miscellaneous functions for dealing with strings.
+ *
+ * some functions (like trim, lower case, upper case ...) are available in two versions:
+ * - a modifying one (suffix "Mod") which modifies the given string argument in place.
+ * - a non modifying one which take a constant string reference and returns a new string.
+ * .
+ *
+ *
+ * (c) Copyright 2007-2008 by Intra2net AG
+ */
#ifndef __STRINGFUNC_HXX
#define __STRINGFUNC_HXX
+#include <stdio.h>
+#include <list>
+#include <numeric>
+#include <set>
+#include <vector>
#include <string>
+#include <sstream>
+#include <stdexcept>
+#include <sys/types.h>
+
+namespace I2n
+{
+
+/*
+** some useful constants:
+*/
+
+extern const std::string Whitespaces;
+extern const std::string LineEndings;
+
+
+/*
+** predicates:
+*/
+
+
+bool has_prefix(const std::string& str, const std::string& prefix);
+
+bool has_suffix(const std::string& str, const std::string& suffix);
+
+
+/*
+** tool functions(modifying):
+*/
+
+std::string trim_mod(std::string& str, const std::string& charlist = Whitespaces);
+
+std::string chomp_mod(std::string& str, const std::string& what= LineEndings );
+
+std::string to_lower_mod(std::string& str);
+
+std::string to_upper_mod(std::string& str);
+
+
+/*
+** tool functions (not modifying):
+*/
+
+std::string trim(const std::string& str, const std::string& charlist = Whitespaces);
+
+std::string chomp(const std::string& str, const std::string& what= LineEndings );
+
+std::string to_lower(const std::string& str);
+
+std::string to_upper(const std::string& str);
+
+
+std::string remove_suffix(const std::string& str, const std::string& suffix);
+
+std::string remove_prefix(const std::string& str, const std::string& prefix);
+
+
+
+/*
+** split and join:
+*/
+
+
+bool pair_split(
+ const std::string& str,
+ std::string& key,
+ std::string& value,
+ char delimiter = '=');
+
+
+void split_string(
+ const std::string& str,
+ std::list< std::string >& result,
+ const std::string& delimiter= "\n",
+ bool omit_empty= false,
+ const std::string& trim_list= std::string()
+);
+
+void split_string(
+ const std::string& str,
+ std::vector< std::string >& result,
+ const std::string& delimiter= "\n",
+ bool omit_empty= false,
+ const std::string& trim_list= std::string()
+);
+
+std::list< std::string > split_string(
+ const std::string& str,
+ const std::string& delimiter = "\n",
+ bool omit_empty= false,
+ const std::string& trim_list= std::string()
+);
+
+struct concatenator {
+ std::string delim;
+
+ concatenator (const std::string &delim) : delim (delim) { }
+
+ inline std::string operator() (const std::string &acc, const std::string &elt) const
+ { return acc + delim + elt; }
+};
-std::string to_lower (const std::string &src);
-std::string to_upper (const std::string &src);
+template<typename Iter>
+std::string
+join_string (
+ Iter first,
+ Iter last,
+ const std::string &delimiter = "\n"
+)
+{
+ if (first == last) { return ""; }
+
+ const std::string &init = *first++;
+ if (first == last) { return init; }
+
+ return std::accumulate (first, last, init, concatenator (delimiter));
+}
+
+/**
+ * @brief joins a container of strings into a single string.
+ *
+ * This funtion is (basically) the reverse operation of @a split_string.
+ *
+ * @param parts the container of strings.
+ * @param delimiter the delimiter to insert between the strings.
+ * @return the joined string.
+ */
+template<typename Cont>
+inline std::string join_string(
+ const Cont& parts,
+ const std::string& delimiter = "\n"
+)
+{ return join_string (parts.begin (), parts.end (), delimiter); }
+
+std::string join_string(
+ const char *const parts [],
+ const std::string& delimiter = "\n"
+);
+
+/*
+** conversions:
+*/
+
+
+std::string convert_binary_to_hex(const std::string&str, bool upper_case_digits= false);
+
+std::string convert_hex_to_binary(const std::string& str) throw(std::runtime_error);
+
+
+/*
+** "type conversions":
+*/
+
+
+/**
+ * convert a datatype @a T to a string via string stream.
+ *
+ * This will not report trouble in conversion; for example:
+ * string_to<int>("christian")
+ * will return 0 and not throw an error.
+ * Use boost::lexical_cast<T>(string) to get error-checked results.
+ *
+ * @param s the string which should be converted to @a T.
+ * @return the value of type T.
+ */
+template<
+class T
+>
+T string_to(const std::string& s)
+{
+ std::istringstream istr(s);
+ T result;
+ istr >> result;
+ return result;
+} // eo string_to(const std::string&)
+
+
+/**
+ * convert a datatype @a T to a string via string stream.
+ *
+ * @param s the string which should be converted to @a T.
+ * @param result the resulting value of type @a T.
+ * @return @a true iff the internal string stream was EOF after the conversion.
+ *
+ * @attention: does not return if the conversion was successful. So check for empty strings before.
+ */
+template<
+class T
+>
+bool string_to(const std::string& s, T& result)
+{
+ std::istringstream istr(s);
+ istr >> result;
+ return istr.eof();
+} // eo string_to(const std::string&)
+
+
+/**
+ * convert string in hexadecimal notation to a datatype @a T
+ * supports strings with and without "0x" notation, e.g. 0xff and FF are both valid
+ *
+ * @param s the hex string which should be converted to @a T.
+ * @return the value of type T.
+ */
+template<
+class T
+>
+T hex_string_to(const std::string& s)
+{
+ std::istringstream istr(s);
+ T result;
+ istr >> std::hex >> result;
+ return result;
+} // eo string_to(const std::string&)
+
+
+/**
+ * convert string in hexadecimal notation to a datatype @a T
+ * supports strings with and without "0x" notation, e.g. 0xff and FF are both valid
+ *
+ * @param s the hex string which should be converted to @a T.
+ * @param result the resulting value of type @a T.
+ * @return @a true iff the internal string stream was EOF after the conversion.
+ *
+ * @attention: does not return if the conversion was successful. So check for empty strings before.
+ */
+template<
+class T
+>
+bool hex_string_to(const std::string& s, T& result)
+{
+ std::istringstream istr(s);
+ istr >> std::hex >> result;
+ return istr.eof();
+} // eo string_to(const std::string&)
+
+
+/**
+ * convert a string to another datatype @a T via string stream.
+ *
+ * @param v the value (of type @a T) which should be converted to a string.
+ * @return the resulting string.
+ */
+template<
+class T
+>
+std::string to_string(const T& v)
+{
+ std::ostringstream ostr;
+ ostr << v;
+ return ostr.str();
+} // eo to_string(const T&)
+
+
+/**
+ * Create a string with types shortened in texts describing C++ types
+ *
+ * for example: std::list<some_long_type, std::allocator<some_long_type> >
+ * --> std::list<some_long_type, _alloc_>
+ *
+ * and std::basic_string<char, std::char_traits<char>, std::allocator<char> >
+ * --> std::string
+ */
+std::string shorten_stl_types(const std::string &input);
+
+std::string base64_encode(const std::string &input, bool one_line=true);
+std::string base64_decode(const std::string &input, bool one_line=true);
-std::string nice_unit_format (int input);
+} // eo namespace I2n
+
+
+#if 0
+std::string to_lower(const std::string &src);
+std::string to_upper(const std::string &src);
+#else
+// compatibility: import lower/upper funcs from I2n:
+using I2n::to_lower;
+using I2n::to_upper;
+#endif
+
+
+enum UnitBase {
+ UnitBase1000, // SI decimal, composed by multiples of 1000 (KB, MB, etc.)
+ UnitBase1024 // IEC binary, composed by multiples of 1024 (KiB, MiB, etc. )
+};
+
+enum UnitFormat {
+ ShortUnitFormat, // B, KB, MB, ...
+ LongUnitFormat // Byte, KByte, MByte, ...
+};
+
+std::string nice_unit_format(
+ const int64_t input,
+ const UnitFormat format = ShortUnitFormat,
+ const UnitBase base = UnitBase1024
+);
+
+std::string nice_unit_format(
+ const double input,
+ const UnitFormat format = ShortUnitFormat,
+ const UnitBase base = UnitBase1024
+);
bool replace_all(std::string &base, const std::string *ist, const std::string *soll);
bool replace_all(std::string &base, const char *ist, const char *soll);
std::string iso_to_utf8(const std::string& isostring);
std::string utf8_to_iso(const std::string& utf8string);
std::string utf7imap_to_utf8(const std::string &utf7imapstring);
+std::string utf8_to_utf7imap(const std::string &utf8string);
std::string strip_html_tags(const std::string &input);
std::string smart_html_entities(const std::string &input);
std::string html_entities(std::string str);
+std::string html_entities_to_console(std::string str);
+
+typedef std::pair<std::string::size_type, std::string::size_type> CommentZone;
+std::vector<CommentZone> find_html_comments(const std::string &str);
+void remove_html_comments(std::string &str);
+void remove_html_comments(std::string &str, const std::vector<CommentZone> &comments);
+
+std::string sanitize_for_logging(const std::string &str, const char replace_with='?');
std::string escape(const std::string &s);
std::string descape(const std::string &s, int startpos, int &endpos);
inline std::string descape(const std::string &s)
{
- int endpos;
- return descape(s,0,endpos);
+ int endpos;
+ return descape(s,0,endpos);
}
std::string escape_shellarg(const std::string &input);
git://developer.intra2net.com / libi2ncommon / blobdiff