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#include <cstdio>
#include "Strings.h"
namespace str {
void wraptext(ostream &out, string const &in, unsigned indent, unsigned initial, unsigned width) {
char const *p = in.c_str();
int ind = indent - initial,
wid = width - initial;
if (initial < indent) wid = width - indent;
while (*p) {
int count;
bool newlines = false;
if (*p && ind > 0) {
out << string(ind, ' ');
ind = indent;
}
for (count = 0; p[count] != 0 && p[count] != '\n' && count < wid; count++) ;
if (p[count] == '\n') newlines = true;
// move back to last space seperation
while (p[count] && !isspace(p[count]) && count) count--;
if (count == 0)
for (count = 0; p[count] != 0 && p[count] != '\n' && count < wid; count++) ;
for (int i = 0; i < count; i++) out << *p++;
// skip spaces
while (*p != 0 && isspace(*p)) {
if (*p == '\n') out << endl;
p++;
}
if (*p && !newlines) out << endl;
initial = 0;
ind = indent;
wid = width - ind;
}
}
string ucfirst(string const &str) {
string out;
bool newword = true;
for (string::const_iterator i = str.begin(); i != str.end(); i++)
if (newword && isalpha(*i)) {
out += toupper(*i);
newword = false;
} else {
if (isspace(*i) || ispunct(*i)) {
newword = true;
}
out += *i;
}
return out;
}
string exec(string const &command) {
FILE *pipe = popen(command.c_str(), "r");
char buffer[1024];
string out;
if (!pipe) throw runtime_error("exec(): failed, " + string(strerror(errno)));
while (fgets(buffer, 1024, pipe))
out += buffer;
fclose(pipe);
return out;
}
string join(string const &delim, vector<string> const &components) {
string out;
vector<string>::const_iterator end = components.end();
end--;
for (vector<string>::const_iterator i = components.begin(); i != components.end(); i++) {
out += (*i);
if (i != end)
out += delim;
}
return out;
}
vector<string> split(string const &delim, string const &text) {
unsigned start = 0;
vector<string> out;
for (unsigned i = start; i < text.size(); i++)
if (!strncmp(text.c_str() + i, delim.c_str(), delim.size())) {
out.push_back(text.substr(start, i - start));
start = i + delim.size();
i += delim.size() - 1;
}
out.push_back(text.substr(start));
return out;
}
string replace(string const &match, string const &repl, string const &in) {
string out;
string::size_type found = 0, lastfound = 0;
while ((found = in.find(match, found)) != string::npos) {
out += in.substr(lastfound, found - lastfound);
out += repl;
found += match.size();
lastfound = found;
}
out += in.substr(lastfound);
return out;
}
string htmlify(string const &_str) {
string out;
char const *str = _str.c_str();
for (unsigned i = 0; i < _str.size(); i++)
switch (str[i]) {
case '<' : out += "<"; break;
case '>' : out += ">"; break;
case '&' : out += "&"; break;
default : out += str[i]; break;
}
return out;
}
string unhtmlify(string const &_str) {
string out;
char const *str = _str.c_str();
for (unsigned i = 0; i < _str.size(); i++)
if (str[i] == '&') {
++i;
if (!strncmp(str + i, "amp;", 4)) { i += 3; out += '&'; }
else if (!strncmp(str + i, "gt;", 3)) { i += 3; out += '>'; }
else if (!strncmp(str + i, "lt;", 3)) { i += 3; out += '<'; }
else {
out += '&';
out += str[i];
}
} else
out += str[i];
return out;
}
string addcslashes(string const &_str) {
string out;
char const *str = _str.c_str();
for (unsigned i = 0; i < _str.size(); ++i)
switch (str[i]) {
case '\n' : out += "\\n"; break;
case '\r' : out += "\\r"; break;
case '\t' : out += "\\t"; break;
case '"' : out += "\\\""; break;
case '\\' : out += "\\\\"; break;
default : out += str[i]; break;
}
return out;
}
string stripcslashes(string const &_str) {
string out;
char const *str = _str.c_str();
for (unsigned i = 0; i < _str.size(); ++i)
if (str[i] == '\\') {
++i;
switch (str[i]) {
case 'n' : out += '\n'; break;
case 'r' : out += '\r'; break;
case 't' : out += '\t'; break;
case '"' : out += '"'; break;
case '\\' : out += '\\'; break;
default : out += str[i]; break;
}
} else
out += str[i];
return out;
}
}
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