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438 lines
9.0 KiB
438 lines
9.0 KiB
/* String.cc
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**
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** Copyright (C) 2000,2001 by Bernhard Rosenkraenzer
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**
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** Contributions by A. Seigo and W. Bastian.
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**
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*/
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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 in a file called COPYING; if not, write to
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** the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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** MA 02110-1301, USA.
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*/
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/*
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** Bug reports and questions can be sent to kde-devel@kde.org
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*/
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#define _GNU_SOURCE 1
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#include <features.h>
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#include <string.h>
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#include <string>
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#include "String.h"
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#include <stdio.h>
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#include <regex.h>
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#include <stdlib.h>
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using namespace std;
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void String::sprintf(const char *format, ...)
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{
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va_list arg;
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va_start(arg, format);
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char *buf=0;
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int size=vsnprintf(buf, 0, format, arg);
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if(size==-1) { /* ARGH!!! */
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cerr << "WARNING: Your C library (libc) does not conform to the ISO C99 standard!" << endl << "Consider upgrading to glibc 2.1 or higher!" << endl;
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int bufsiz=1024;
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while(size==-1) {
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buf=(char *) malloc(bufsiz);
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size=vsnprintf(buf, 0, format, arg);
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bufsiz+=1024;
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free(buf);
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}
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}
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buf=(char *) malloc(size+1);
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vsnprintf(buf, size+1, format, arg);
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string str=buf;
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*this=buf;
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va_end(arg);
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free(buf);
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return;
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}
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bool String::readfile(String filename)
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{
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FILE *f=fopen(filename, "r");
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if(!f)
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return false;
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string str="";
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char *buf=(char *) malloc(1024);
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while(!feof(f) && !ferror(f)) {
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if(!fgets(buf, 1024, f))
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continue;
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str += buf;
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};
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*this=buf;
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free(buf);
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fclose(f);
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return true;
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}
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char *String::cstr() const
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{
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char *a=new char[size()+1];
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a[size()]=0;
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strncpy(a, data(), size());
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return a;
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}
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bool String::cmp(char const * const s) const
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{
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if(size() != strlen(s))
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return false;
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return (strncmp(data(), s, size())==0);
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}
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bool String::casecmp(char const * const s) const
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{
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if(size() != strlen(s))
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return false;
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return (strncasecmp(data(), s, size())==0);
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}
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bool String::contains(String const &s, bool cs) const
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{
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if(cs)
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if(strstr(cstr(), s.cstr()))
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return true;
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else
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return false;
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else
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if(strcasestr(cstr(), s.cstr()))
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return true;
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else
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return false;
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}
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int String::locate(String const &s, bool cs, unsigned int startat) const
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{
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if(startat>=size())
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return -1;
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char *s0=cstr(), *s1=s.cstr(), *s2;
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int r;
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if(cs)
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s2=strstr(s0+startat, s1);
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else
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s2=strcasestr(s0+startat, s1);
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if(s2==NULL) {
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delete [] s0;
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delete [] s1;
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return -1;
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}
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r=(s2-s0);
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if(startat>0) r++;
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delete [] s0;
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delete [] s1;
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return r;
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}
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String const String::operator +(char const &s) {
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char a[2];
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a[0]=s;
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a[1]=0;
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String st=cstr();
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st+=a;
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return st;
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}
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String const String::operator +(char const * const s) {
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String st=cstr();
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st += s;
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return st;
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}
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bool String::operator ==(char s) {
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if(size()==1 && cstr()[0]==s)
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return true;
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else
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return false;
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}
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bool String::operator !=(char s) {
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if(size()!=1 || cstr()[0]!=s)
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return true;
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else
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return false;
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}
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String String::simplifyWhiteSpace() const {
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char *s=cstr();
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for(unsigned int i=0; i<size(); i++)
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if(isspace(s[i]))
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s[i]=' ';
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while(*s==' ')
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strcpy(s, s+1);
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int l = strlen(s);
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while(l && (s[l-1]==' '))
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s[--l]=0;
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while(strstr(s, " "))
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strcpy(strstr(s, " "), strstr(s, " ")+1);
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return s;
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}
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String String::left(unsigned int num) const
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{
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if(num==0) return "";
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char *s=cstr();
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if(size()<=num)
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return s;
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s[num]=0;
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return s;
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}
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String String::right(unsigned int num) const
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{
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if(num==0) return "";
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char *s=cstr();
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if(size()<=num)
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return s;
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strcpy(s, s+strlen(s)-num);
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return s;
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}
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String String::mid(unsigned int start, unsigned int num) const
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{
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if(start>=size())
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return "";
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char *s=cstr();
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start--;
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if(start>0)
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strcpy(s, s+start);
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if(num>0 && num<=strlen(s))
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s[num]=0;
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return s;
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}
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String &String::regex(String const &expr, bool cs) const
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{
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regex_t regexp;
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int err;
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regmatch_t reg[1];
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String *ret=new String("");
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if((err=regcomp(®exp, expr, cs?REG_EXTENDED:REG_EXTENDED|REG_ICASE))) {
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regfree(®exp);
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return *ret;
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}
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err=regexec(®exp, cstr(), 1, reg, 0);
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regfree(®exp);
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if(err)
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return *ret;
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if(reg[0].rm_so!=-1) {
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char *s=strdup(cstr()+reg[0].rm_so);
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s[reg[0].rm_eo-reg[0].rm_so]=0;
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delete ret;
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ret=new String(s);
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free(s);
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}
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return *ret;
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}
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String &String::replace(String const &what, String const &with, bool all) const
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{
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String *result;
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if(!contains(what)) {
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result=new String(*this);
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return *result;
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}
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result=new String;
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*result=left(locate(what));
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*result+=with;
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if(!all) {
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*result+=right(size()-locate(what)-what.size());
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} else {
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unsigned int start=locate(what)+what.size()+1;
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int loc;
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while((loc=locate(what, true, start+1))!=-1) {
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*result+=mid(start, loc-start);
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*result+=with;
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start=locate(what, true, start)+what.size();
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}
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if(size()>start)
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*result+=right(size()-start+1);
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}
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return *result;
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}
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String String::escapeForRegExp(String const &s)
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{
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static const char meta[] = "$()*+.?[\\]^{|}";
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String quoted = s;
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int i = 0;
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while ( i < (int) quoted.length() ) {
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if ( strchr(meta, quoted.at(i)) != 0 )
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quoted.insert( i++, "\\" );
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i++;
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}
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return quoted;
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}
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StringList::StringList(String const &s)
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{
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clear();
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char *st=strdup((char const * const)s);
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char *tok;
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char *line=strtok_r(st, "\n", &tok);
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while(line) {
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if(line[strlen(line)-1]=='\r') // Handle sucking OSes
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line[strlen(line)-1]=0;
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insert(end(), line);
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line=strtok_r(NULL, "\n", &tok);
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}
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free(st);
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}
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StringList::StringList(char **strs, int num)
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{
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clear();
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if(num>=0) {
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for(int i=0; i<num; i++)
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insert(end(), strs[i]);
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} else {
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for(int i=0; strs[i]!=NULL; i++)
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insert(end(), strs[i]);
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}
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}
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bool StringList::readfile(String const &filename)
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{
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clear();
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FILE *f=fopen(filename, "r");
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if(!f)
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return false;
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char *buf=(char *) malloc(1024);
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while(!feof(f) && !ferror(f)) {
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if(!fgets(buf, 1024, f))
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continue;
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while(strlen(buf) && (buf[strlen(buf)-1]=='\n' || buf[strlen(buf)-1]=='\r'))
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buf[strlen(buf)-1]=0;
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insert(end(), buf);
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};
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free(buf);
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fclose(f);
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return true;
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}
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bool StringList::writefile(String const &filename) const
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{
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FILE *f=fopen(filename, "w");
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if(!f)
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return false;
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for(const_iterator it=begin(); it!=end(); it++) {
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fputs(*it, f);
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fputs("\n", f);
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}
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fclose(f);
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return true;
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}
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void StringList::operator +=(StringList const &s)
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{
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for(const_iterator it=s.begin(); it!=s.end(); it++)
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insert(end(), *it);
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}
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void StringList::operator +=(StringList const * const s)
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{
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for(const_iterator it=s->begin(); it!=s->end(); it++)
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insert(end(), *it);
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}
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bool StringList::contains(String const &s) const
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{
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for(const_iterator it=begin(); it!=end(); it++)
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if(*it == s)
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return true;
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return false;
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}
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void StringList::remove(String const &s)
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{
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bool done=false;
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for(iterator it=begin(); !done && it!=end(); it++)
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if(*it==s) {
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erase(it);
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done=true;
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}
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}
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String const &StringList::grep(String const &s) const
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{
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for(const_iterator it=begin(); it!=end(); it++)
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if(!(*it).regex(s).empty())
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return *it;
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String *r=new String;
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return *r;
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}
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int __stringlist_compare(const void *a, const void *b)
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{
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if(a==0 && b==0)
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return 0;
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else if(a==0)
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return 1;
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else if(b==0)
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return -1;
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else
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return strcmp((const char *)a,(const char *)b);
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}
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int __stringlist_compare_noncs(const void *a, const void *b)
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{
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if(a==0 && b==0)
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return 0;
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else if(a==0)
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return 1;
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else if(b==0)
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return -1;
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else
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return strcasecmp((const char *)a,(const char *)b);
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}
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void StringList::sort(bool cs)
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{
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unsigned int i=0, s=size();
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char **strings=new char*[s];
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for(const_iterator it=begin(); it!=end(); it++)
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strings[i++]=(*it).cstr();
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if(cs)
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qsort(strings, s, sizeof(char*), __stringlist_compare);
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else
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qsort(strings, s, sizeof(char*), __stringlist_compare_noncs);
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clear();
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for(i=0; i<s; i++) {
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insert(end(), strings[i]);
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delete [] strings[i];
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}
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delete [] strings;
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}
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StringList::operator String() const
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{
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String s="";
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for(const_iterator it=begin(); it!=end(); it++) {
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s+=(*it);
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if(s.right()!=String("\n") && s.right()!=String("\r"))
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s+="\n";
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}
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return s;
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}
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ostream &operator <<(ostream &os, String const &s)
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{
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if(!s.empty())
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os << (char const * const) s;
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return os;
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}
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ostream &operator <<(ostream &os, String const *s)
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{
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if(!s->empty())
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os << (char const * const) *s;
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return os;
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}
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ostream &operator <<(ostream &os, StringList const &s)
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{
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for(StringList::const_iterator it=s.begin(); it!=s.end(); it++) {
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os << *it;
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if((*it).right()!=String("\n") && (*it).right()!=String("\r"))
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os << endl;
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}
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return os;
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}
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ostream &operator <<(ostream &os, StringList const *s)
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{
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for(StringList::const_iterator it=s->begin(); it!=s->end(); it++) {
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os << *it;
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if((*it).right()!=String("\n") && (*it).right()!=String("\r"))
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os << endl;
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}
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return os;
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}
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