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fluxgen 2003-04-26 18:12:16 +00:00
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commit 3e92ad1010
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141
src/StringUtil.cc
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// StringUtil.cc for fluxbox
// Copyright (c) 2001 - 2002 Henrik Kinnunen (fluxgen@linuxmail.org)
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
// $Id: StringUtil.cc,v 1.14 2002/12/01 13:41:59 rathnor Exp $
#include "StringUtil.hh"
#include <string>
#include <cstdio>
#include <cstdlib>
#include <cctype>
#include <cassert>
#include <memory>
using namespace std;
namespace StringUtil
{
//------- strdup ------------------------
// Takes a pointer to string *s as an argument,
// creates a new string n, copies s to n and
// returns a pointer to n.
//----------------------------------------
char *strdup(const char *s) {
int l = strlen(s) + 1;
char *n = new char[l];
strncpy(n, s, l);
return n;
}
//------- strcasestr --------------
// Tries to find a string in another and
// ignoring the case of the characters
// Returns 0 on success else pointer to str.
//---------------------------------
const char *strcasestr(const char *str, const char *ptn) {
const char *s2, *p2;
for( ; *str; str++) {
for(s2=str, p2=ptn; ; s2++,p2++) {
if (!*p2) return str; // check if we reached the end of ptn, if so, return str
if (toupper(*s2) != toupper(*p2)) break; // check if the chars match(ignoring case)
}
}
return 0;
}
//------------- expandFilename ----------------------
// if ~ then expand it to home of user
// returns expanded filename
//---------------------------------------------------
string expandFilename(const std::string &filename) {
string retval;
size_t pos = filename.find_first_not_of(" \t");
if (pos != std::string::npos && filename[pos] == '~') {
retval = getenv("HOME");
if (pos != filename.size()) {
// copy from the character after '~'
retval += static_cast<const char *>(filename.c_str() + pos + 1);
}
} else
return filename; //return unmodified value
return retval;
}
//------------- getStringBetween -----------
// Parses a string between "first" and "last" characters
// and ignoring ok_chars as whitespaces. The value is
// returned in "out".
// Returns negative value on error and this value is the position
// in the in-string where the error occured.
// Returns positive value on success and this value is
// for the position + 1 in the in-string where the "last"-char value
// was found.
//------------------------------------------
int getStringBetween(std::string& out, const char *instr, const char first, const char last,
const char *ok_chars) {
assert(first);
assert(last);
assert(instr);
std::string::size_type i = 0,
total_add=0; //used to add extra if there is a \last to skip
std::string in(instr);
// eat leading whitespace
i = in.find_first_not_of(ok_chars);
if (i == std::string::npos)
return -in.size(); // nothing left but whitespace
if (in[i]!=first)
return -i; //return position to error
// find the end of the token
std::string::size_type j = i;
while (1) {
j = in.find_first_of(last, j+1);
if (j==std::string::npos)
return -in.size(); //send negative size
//we found the last char, check so it doesn't have a '\' before
if (j>1 && in[j-1] != '\\')
break;
else if (j>1) {
in.erase(j-1, 1); //remove the '\'
j--;
total_add++; //save numchars removed so we can calculate totalpos
}
}
out = in.substr(i+1, j-i-1); //copy the string between first and last
//return value to last character
return (j+1+total_add);
}
void toLower(char * const conv) {
for (size_t byte_pos = 0; byte_pos < strlen(conv); ++byte_pos)
conv[byte_pos] = tolower(conv[byte_pos]);
}
}; //end namespace StringUtil

79
src/StringUtil.hh
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// StringUtil.hh for fluxbox
// Copyright (c) 2001 - 2002 Henrik Kinnunen (fluxgen@linuxmail.org)
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//$Id: StringUtil.hh,v 1.11 2002/12/01 13:41:59 rathnor Exp $
#ifndef STRINGUTIL_HH
#define STRINGUTIL_HH
#include <string>
namespace StringUtil
{
char *strdup(const char *);
//Similar to `strstr' but this function ignores the case of both strings
const char *strcasestr(const char *str, const char *ptn);
std::string expandFilename(const std::string &filename);
int getStringBetween(std::string& out, const char *instr, const char first, const char last,
const char *ok_chars=" \t\n");
void toLower(char * const conv);
//--------- stringtok ----------------------------------
// Breaks a string into tokens
//--------------------------------------------------
template <typename Container>
static void
stringtok (Container &container, std::string const &in,
const char * const delimiters = " \t\n")
{
const std::string::size_type len = in.length();
std::string::size_type i = 0;
while ( i < len ) {
// eat leading whitespace
i = in.find_first_not_of(delimiters, i);
if (i == std::string::npos)
return; // nothing left but white space
// find the end of the token
std::string::size_type j = in.find_first_of(delimiters, i);
// push token
if (j == std::string::npos) {
container.push_back(in.substr(i));
return;
} else
container.push_back(in.substr(i, j-i));
// set up for next loop
i = j + 1;
}
}
};//end namespace StringUtil
#endif // STRINGUTIL_HH