Parsing.hpp

Go to the documentation of this file.

#ifndef _ALEJANDROS_PARSING_LIBRAY
#define _ALEJANDROS_PARSING_LIBRAY
 
#include <regex>
#include <string>
#include <vector>
 
namespace pars {
using Str = std::string;
const Str oneOrMore("+"), newline("\\n"), anyChar("."), tab("\\t"), anyOf("*"),
    optional("?"), eof("$"), orOf("|"), bof("^") // begin of line
    ,
    alnum("[[:alnum:]]") // lowercase letters, uppercase letters, and digits
    ,
    alpha("[[:alpha:]]") // lowercase letters and uppercase letters
    ,
    blank("[[:blank:]]") // space or tab
    ,
    cntrl("[[:cntrl:]]") // the file format escape characters
    ,
    digit("[[:digit:]]") // digits
    // lowercase letters, uppercase letters, digits, and punctuation
    ,
    graph("[[:graph:]]"), lower("[[:lower:]]") // lowercase letters
    ,
    upper("[[:upper:]]") // uppercase characters
    // lowercase letters, uppercase letters, digits, punctuation, and space
    ,
    print("[[:print:]]"), punct("[[:punct:]]") // punctuation
    ,
    space("[[:space:]]") // space
    ,
    xdigit("[[:xdigit:]]") // hexadecimal digits (with upper and lower)
    ,
    realNumber("[-eE+\\d.]+") // real number TODO: improve
    ;
 
const std::function<Str(Str)> capture([](const Str &i) {
  return "(" + i + ")";
}),
    group([](const Str &i) { return "(?:" + i + ")"; });
 
Str oneOf(const std::vector<Str> &);
 
struct Regex {
  const std::string s;
  const std::regex r;
  Regex(const char *s_)
      : s(s_)
      , r(s_) {}
  Regex(const std::string &s_)
      : s(s_)
      , r(s_) {}
};
 
template <typename F>
std::vector<F> parseVector(const std::string &);
 
} // namespace pars
 
#endif