+/**
+ * \file lstrings.C
+ * This file is part of LyX, the document processor.
+ * Licence details can be found in the file COPYING.
+ *
+ * \author Lars Gullik Bjønnes
+ * \author Jean-Marc Lasgouttes
+ *
+ * Full author contact details are available in file CREDITS
+ */
+
#include <config.h>
-#include <algorithm>
-#include <cctype>
-#include <cstdio>
-#include <cstdlib>
+#ifdef __GNUG__
+#pragma implementation
+#endif
#include "LString.h"
#include "lstrings.h"
-#include "LRegex.h"
+#include "LAssert.h"
+#include "debug.h"
+
+#include <boost/regex.hpp>
+#include <boost/tokenizer.hpp>
+
+#include <algorithm>
+
+#include <cctype>
+#include <cstdlib>
using std::count;
using std::transform;
+using std::vector;
+
+#ifndef CXX_GLOBAL_CSTD
+using std::atof;
+using std::isdigit;
+using std::strlen;
+using std::tolower;
+using std::toupper;
+#endif
+
int compare_no_case(string const & s, string const & s2)
{
- // ANSI C
string::const_iterator p = s.begin();
string::const_iterator p2 = s2.begin();
++p;
++p2;
}
-
+
if (s.size() == s2.size())
return 0;
if (s.size() < s2.size())
return 1;
}
+
+namespace {
+ int ascii_tolower(int c) {
+ if (c >= 'A' && c <= 'Z')
+ return c - 'A' + 'a';
+ return c;
+ }
+}
+
+
+int compare_ascii_no_case(string const & s, string const & s2)
+{
+ string::const_iterator p = s.begin();
+ string::const_iterator p2 = s2.begin();
+
+ while (p != s.end() && p2 != s2.end()) {
+ int const lc1 = ascii_tolower(*p);
+ int const lc2 = ascii_tolower(*p2);
+ if (lc1 != lc2)
+ return (lc1 < lc2) ? -1 : 1;
+ ++p;
+ ++p2;
+ }
+
+ if (s.size() == s2.size())
+ return 0;
+ if (s.size() < s2.size())
+ return -1;
+ return 1;
+}
+
+
int compare_no_case(string const & s, string const & s2, unsigned int len)
{
-//#warning verify this func please
string::const_iterator p = s.begin();
string::const_iterator p2 = s2.begin();
unsigned int i = 0;
++p;
++p2;
}
- if (s.size() == s2.size())
+
+ if (s.size() >= len && s2.size() >= len)
return 0;
if (s.size() < s2.size())
return -1;
return 1;
}
+
bool isStrInt(string const & str)
{
if (str.empty()) return false;
-
+
// Remove leading and trailing white space chars.
- string tmpstr = frontStrip(strip(str, ' '), ' ');
+ string const tmpstr = trim(str);
if (tmpstr.empty()) return false;
-
+
string::const_iterator cit = tmpstr.begin();
- if ( (*cit) == '-') ++cit;
- for (; cit != tmpstr.end(); ++cit) {
+ if ((*cit) == '-') ++cit;
+ string::const_iterator end = tmpstr.end();
+ for (; cit != end; ++cit) {
if (!isdigit((*cit))) return false;
}
return true;
}
-int strToInt(string const & str)
+bool isStrUnsignedInt(string const & str)
{
- string tmpstr;
+ if (str.empty()) return false;
+
+ // Remove leading and trailing white space chars.
+ string const tmpstr = trim(str);
+ if (tmpstr.empty()) return false;
+
+ string::const_iterator cit = tmpstr.begin();
+ string::const_iterator end = tmpstr.end();
+ for (; cit != end; ++cit) {
+ if (!isdigit((*cit))) return false;
+ }
+ return true;
+}
+
+int strToInt(string const & str)
+{
if (isStrInt(str)) {
// Remove leading and trailing white space chars.
- tmpstr = frontStrip(strip(str, ' '), ' ');
+ string const tmpstr = trim(str);
// Do the conversion proper.
- return atoi(tmpstr.c_str());
- } else
+ return lyx::atoi(tmpstr);
+ } else {
return 0;
+ }
}
-string lowercase(string const & a)
+unsigned int strToUnsignedInt(string const & str)
{
-#if 0
- string tmp;
- string::const_iterator cit = a.begin();
- for(; cit != a.end(); ++cit) {
- tmp += static_cast<char>(tolower(*cit));
+ if (isStrUnsignedInt(str)) {
+ // Remove leading and trailing white space chars.
+ string const tmpstr = trim(str);
+ // Do the conversion proper.
+ return lyx::atoi(tmpstr);
+ } else {
+ return 0;
}
- return tmp;
-#endif
- string tmp(a);
- transform(tmp.begin(), tmp.end(), tmp.begin(), tolower);
- return tmp;
}
-string uppercase(string const & a)
+bool isStrDbl(string const & str)
{
- string tmp(a);
- transform(tmp.begin(), tmp.end(), tmp.begin(), toupper);
- return tmp;
-}
+ if (str.empty()) return false;
+ // Remove leading and trailing white space chars.
+ string const tmpstr = trim(str);
+ if (tmpstr.empty()) return false;
+ // if (1 < tmpstr.count('.')) return false;
-string tostr(long i)
-{
- // should use string stream
- char str[30];
- sprintf(str, "%ld", i);
- return string(str);
+ string::const_iterator cit = tmpstr.begin();
+ bool found_dot(false);
+ if ((*cit) == '-') ++cit;
+ string::const_iterator end = tmpstr.end();
+ for (; cit != end; ++cit) {
+ if (!isdigit((*cit))
+ && '.' != (*cit)) {
+ return false;
+ }
+ if ('.' == (*cit)) {
+ if (found_dot) {
+ return false;
+ } else {
+ found_dot = true;
+ }
+ }
+ }
+ return true;
}
-string tostr(unsigned long i)
+double strToDbl(string const & str)
{
- // should use string stream
- char str[30];
- sprintf(str, "%lu", i);
- return string(str);
+ if (isStrDbl(str)) {
+ // Remove leading and trailing white space chars.
+ string const tmpstr = trim(str);
+ // Do the conversion proper.
+ return ::atof(tmpstr.c_str());
+ } else {
+ return 0.0;
+ }
}
-string tostr(void * v)
+char lowercase(char c)
{
- return tostr(long(v));
+ return char(tolower(c));
}
-string tostr(int i)
+char uppercase(char c)
{
- return tostr(long(i));
+ return char(toupper(c));
}
-string tostr(unsigned int ui)
-{
- return tostr(long(ui));
-}
+namespace {
+// since we cannot use std::tolower and std::toupper directly in the
+// calls to std::transform yet, we use these helper clases. (Lgb)
-string tostr(char c)
-{
- return string(1, c);
-}
+struct local_lowercase {
+ char operator()(char c) const {
+ return tolower(c);
+ }
+};
+struct local_uppercase {
+ char operator()(char c) const {
+ return toupper(c);
+ }
+};
-string tostr(bool b)
+struct local_ascii_lowercase {
+ char operator()(char c) const {
+ return ascii_tolower(c);
+ }
+};
+
+} // end of anon namespace
+
+string const lowercase(string const & a)
{
- return b ? "true" : "false";
+ string tmp(a);
+ transform(tmp.begin(), tmp.end(), tmp.begin(), local_lowercase());
+ return tmp;
}
-
-#if 0
-string tostr(float f)
+string const uppercase(string const & a)
{
- return tostr(double(f));
+ string tmp(a);
+ transform(tmp.begin(), tmp.end(), tmp.begin(), local_uppercase());
+ return tmp;
}
-#endif
-string tostr(double d)
+string const ascii_lowercase(string const & a)
{
- // should use string stream
- char tmp[40];
- sprintf(tmp, "%f", d);
- return string(tmp);
+ string tmp(a);
+ transform(tmp.begin(), tmp.end(), tmp.begin(),
+ local_ascii_lowercase());
+ return tmp;
}
bool prefixIs(string const & a, char const * pre)
{
- unsigned int l = strlen(pre);
- if (l > a.length() || a.empty())
+ lyx::Assert(pre);
+
+ size_t const l = strlen(pre);
+ string::size_type const alen = a.length();
+
+ if (l > alen || a.empty())
return false;
- else
+ else {
+#if !defined(USE_INCLUDED_STRING) && !defined(STD_STRING_IS_GOOD)
+ // Delete this code when the compilers get a bit better.
+ return ::strncmp(a.c_str(), pre, l) == 0;
+#else
+ // This is the code that we really want to use
+ // but until gcc ships with a basic_string that
+ // implements std::string correctly we have to
+ // use the code above.
return a.compare(0, l, pre, l) == 0;
+#endif
+ }
+}
+
+
+bool prefixIs(string const & a, string const & pre)
+{
+ string::size_type const prelen = pre.length();
+ string::size_type const alen = a.length();
+
+ if (prelen > alen || a.empty())
+ return false;
+ else {
+#if !defined(USE_INCLUDED_STRING) && !defined(STD_STRING_IS_GOOD)
+ return ::strncmp(a.c_str(), pre.c_str(), prelen) == 0;
+#else
+ return a.compare(0, prelen, pre) == 0;
+#endif
+ }
}
bool suffixIs(string const & a, char const * suf)
{
- unsigned int suflen = strlen(suf);
- if (suflen > a.length())
+ lyx::Assert(suf);
+
+ size_t const suflen = strlen(suf);
+ string::size_type const alen = a.length();
+
+ if (suflen > alen)
return false;
else {
- return a.compare(a.length() - suflen, suflen, suf) == 0;
+#if !defined(USE_INCLUDED_STRING) && !defined(STD_STRING_IS_GOOD)
+ // Delete this code when the compilers get a bit better.
+ string tmp(a, alen - suflen);
+ return ::strncmp(tmp.c_str(), suf, suflen) == 0;
+#else
+ // This is the code that we really want to use
+ // but until gcc ships with a basic_string that
+ // implements std::string correctly we have to
+ // use the code above.
+ return a.compare(alen - suflen, suflen, suf) == 0;
+#endif
}
}
-bool contains(char const * a, string const & b)
+bool suffixIs(string const & a, string const & suf)
{
- if (!a || !*a || b.empty()) return false;
- return strstr(a, b.c_str()) != 0;
-}
-
+ string::size_type const suflen = suf.length();
+ string::size_type const alen = a.length();
-bool contains(string const & a, char const * b)
-{
- if (a.empty())
+ if (suflen > alen) {
return false;
- return a.find(b) != string::npos;
+ } else {
+#if !defined(USE_INCLUDED_STRING) && !defined(STD_STRING_IS_GOOD)
+ string tmp(a, alen - suflen);
+ return ::strncmp(tmp.c_str(), suf.c_str(), suflen) == 0;
+#else
+ return a.compare(alen - suflen, suflen, suf) == 0;
+#endif
+ }
}
}
-bool contains(char const * a, char const * b)
+bool contains(string const & a, char b)
{
- if (!a || !b || !*a || !*b) return false;
- return strstr(a, b) != 0;
+ if (a.empty())
+ return false;
+ return a.find(b) != string::npos;
}
-int countChar(string const & a, char const c)
+bool containsOnly(string const & s, string const & cset)
{
- return count(a.begin(), a.end(), c);
+ return s.find_first_not_of(cset) == string::npos;
}
// ale970405+lasgoutt-970425
// rewritten to use new string (Lgb)
-string token(string const & a, char delim, int n)
+string const token(string const & a, char delim, int n)
{
if (a.empty()) return string();
-
+
string::size_type k = 0;
string::size_type i = 0;
int tokenPos(string const & a, char delim, string const & tok)
{
int i = 0;
- string str = a;
+ string str(a);
string tmptok;
while (!str.empty()) {
string regex(pattern);
regex = subst(regex, ".", "\\.");
regex = subst(regex, "*", ".*");
- LRegex reg(regex);
- return reg.exact_match(a);
+ boost::regex reg(STRCONV(regex));
+ return boost::regex_match(STRCONV(a), reg);
}
-string subst(string const & a, char oldchar, char newchar)
+string const subst(string const & a, char oldchar, char newchar)
{
- string tmp = a;
+ string tmp(a);
string::iterator lit = tmp.begin();
- for(; lit != tmp.end(); ++lit)
+ string::iterator end = tmp.end();
+ for (; lit != end; ++lit)
if ((*lit) == oldchar)
(*lit) = newchar;
return tmp;
}
-string subst(string const & a,
- char const * oldstr, string const & newstr)
+string const subst(string const & a,
+ char const * oldstr, string const & newstr)
{
+ lyx::Assert(oldstr);
+
string lstr(a);
string::size_type i = 0;
- int olen = strlen(oldstr);
- while((i = lstr.find(oldstr, i)) != string::npos) {
+ string::size_type olen = strlen(oldstr);
+ while ((i = lstr.find(oldstr, i)) != string::npos) {
lstr.replace(i, olen, newstr);
i += newstr.length(); // We need to be sure that we dont
// use the same i over and over again.
}
-string strip(string const & a, char const c)
+string const subst(string const & a,
+ string const & oldstr, string const & newstr)
{
- if (a.empty()) return a;
- string tmp = a;
- string::size_type i = tmp.find_last_not_of(c);
- if (i == a.length() - 1) return tmp; // no c's at end of a
- if (i != string::npos)
- tmp.erase(i + 1, string::npos);
- else
- tmp.clear(); // only c in the whole string
- return tmp;
+ string lstr(a);
+ string::size_type i = 0;
+ string::size_type const olen = oldstr.length();
+ while ((i = lstr.find(oldstr, i)) != string::npos) {
+ lstr.replace(i, olen, newstr);
+ i += newstr.length(); // We need to be sure that we dont
+ // use the same i over and over again.
+ }
+ return lstr;
}
-string frontStrip(string const & a, char const * p)
+string const trim(string const & a, char const * p)
{
- if (a.empty() || !p || !*p) return a;
- string tmp = a;
- string::size_type i = tmp.find_first_not_of(p);
- if (i > 0)
- tmp.erase(0, i);
- return tmp;
+ lyx::Assert(p);
+
+ if (a.empty() || !*p)
+ return a;
+
+ string::size_type r = a.find_last_not_of(p);
+ string::size_type l = a.find_first_not_of(p);
+
+ // Is this the minimal test? (lgb)
+ if (r == string::npos && l == string::npos)
+ return string();
+
+ return a.substr(l, r - l + 1);
}
-string frontStrip(string const & a, char const c)
+string const rtrim(string const & a, char const * p)
{
- if (a.empty()) return a;
- string tmp = a;
- string::size_type i = tmp.find_first_not_of(c);
- if (i > 0)
- tmp.erase(0, i);
- return tmp;
+ lyx::Assert(p);
+
+ if (a.empty() || !*p)
+ return a;
+
+ string::size_type r = a.find_last_not_of(p);
+
+ // Is this test really needed? (Lgb)
+ if (r == string::npos)
+ return string();
+
+ return a.substr(0, r + 1);
+}
+
+
+string const ltrim(string const & a, char const * p)
+{
+ lyx::Assert(p);
+
+ if (a.empty() || !*p)
+ return a;
+
+ string::size_type l = a.find_first_not_of(p);
+
+ if (l == string::npos)
+ return string();
+
+ return a.substr(l, string::npos);
}
-string split(string const & a, string & piece, char delim)
+string const split(string const & a, string & piece, char delim)
{
string tmp;
string::size_type i = a.find(delim);
piece = a.substr(0, i);
tmp = a.substr(i + 1);
} else if (i == 0) {
- piece.clear();
+ piece.erase();
tmp = a.substr(i + 1);
} else {
piece = a;
}
-string split(string const & a, char delim)
+string const split(string const & a, char delim)
{
string tmp;
string::size_type i = a.find(delim);
// ale970521
-string rsplit(string const & a, string & piece, char delim)
+string const rsplit(string const & a, string & piece, char delim)
{
string tmp;
string::size_type i = a.rfind(delim);
piece = a.substr(0, i);
tmp = a.substr(i + 1);
} else { // delimter was not found
- piece.clear();
+ piece.erase();
}
return tmp;
}
+
+
+// This function escapes 8-bit characters and other problematic
+// characters that cause problems in latex labels.
+string const escape(string const & lab)
+{
+ char hexdigit[16] = { '0', '1', '2', '3', '4', '5', '6', '7',
+ '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };
+ string enc;
+ for (string::size_type i = 0; i < lab.length(); ++i) {
+ unsigned char c= lab[i];
+ if (c >= 128 || c == '=' || c == '%') {
+ enc += '=';
+ enc += hexdigit[c>>4];
+ enc += hexdigit[c & 15];
+ } else {
+ enc += c;
+ }
+ }
+ return enc;
+}
+
+
+/// gives a vector of stringparts which have the delimiter delim
+vector<string> const getVectorFromString(string const & str,
+ string const & delim)
+{
+// Lars would like this code to go, but for now his replacement (below)
+// doesn't fullfil the same function. I have, therefore, reactivated the
+// old code for now. Angus 11 Nov 2002.
+#if 1
+ vector<string> vec;
+ if (str.empty())
+ return vec;
+ string keys(rtrim(str));
+ for(;;) {
+ string::size_type const idx = keys.find(delim);
+ if (idx == string::npos) {
+ vec.push_back(ltrim(keys));
+ break;
+ }
+ string const key = trim(keys.substr(0, idx));
+ if (!key.empty())
+ vec.push_back(key);
+ string::size_type const start = idx + delim.size();
+ keys = keys.substr(start);
+ }
+ return vec;
+#else
+ boost::char_separator<char> sep(delim.c_str());
+ boost::tokenizer<boost::char_separator<char> > tokens(str, sep);
+#ifndef USE_INCLUDED_STRING
+ return vector<string>(tokens.begin(), tokens.end());
+#else
+ vector<string> vec;
+ using boost::tokenizer;
+ using boost::char_separator;
+
+ tokenizer<char_separator<char> >::iterator it = tokens.begin();
+ tokenizer<char_separator<char> >::iterator end = tokens.end();
+ for (; it != end; ++it) {
+ vec.push_back(STRCONV((*it)));
+ }
+ return vec;
+#endif
+#endif
+}
+
+
+// the same vice versa
+string const getStringFromVector(vector<string> const & vec,
+ string const & delim)
+{
+ string str;
+ int i = 0;
+ for (vector<string>::const_iterator it = vec.begin();
+ it != vec.end(); ++it) {
+ string item = trim(*it);
+ if (item.empty()) continue;
+
+ if (i++ > 0) str += delim;
+ str += item;
+ }
+ return str;
+}
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