bytes.js

'use strict';

var Char = require("./char.js");
var List = require("./list.js");
var Curry = require("./curry.js");
var Caml_obj = require("./caml_obj.js");
var Caml_bytes = require("./caml_bytes.js");
var Caml_int32 = require("./caml_int32.js");
var Caml_primitive = require("./caml_primitive.js");
var Caml_builtin_exceptions = require("./caml_builtin_exceptions.js");

function make(n, c) {
  var s = Caml_bytes.caml_create_bytes(n);
  Caml_bytes.caml_fill_bytes(s, 0, n, c);
  return s;
}

function init(n, f) {
  var s = Caml_bytes.caml_create_bytes(n);
  for(var i = 0 ,i_finish = n - 1 | 0; i <= i_finish; ++i){
    s[i] = Curry._1(f, i);
  }
  return s;
}

var empty = [];

function copy(s) {
  var len = s.length;
  var r = Caml_bytes.caml_create_bytes(len);
  Caml_bytes.caml_blit_bytes(s, 0, r, 0, len);
  return r;
}

function to_string(b) {
  return Caml_bytes.bytes_to_string(copy(b));
}

function of_string(s) {
  return copy(Caml_bytes.bytes_of_string(s));
}

function sub(s, ofs, len) {
  if (ofs < 0 || len < 0 || ofs > (s.length - len | 0)) {
    throw [
          Caml_builtin_exceptions.invalid_argument,
          "String.sub / Bytes.sub"
        ];
  }
  var r = Caml_bytes.caml_create_bytes(len);
  Caml_bytes.caml_blit_bytes(s, ofs, r, 0, len);
  return r;
}

function sub_string(b, ofs, len) {
  return Caml_bytes.bytes_to_string(sub(b, ofs, len));
}

function extend(s, left, right) {
  var len = (s.length + left | 0) + right | 0;
  var r = Caml_bytes.caml_create_bytes(len);
  var match = left < 0 ? /* tuple */[
      -left | 0,
      0
    ] : /* tuple */[
      0,
      left
    ];
  var dstoff = match[1];
  var srcoff = match[0];
  var cpylen = Caml_primitive.caml_int_min(s.length - srcoff | 0, len - dstoff | 0);
  if (cpylen > 0) {
    Caml_bytes.caml_blit_bytes(s, srcoff, r, dstoff, cpylen);
  }
  return r;
}

function fill(s, ofs, len, c) {
  if (ofs < 0 || len < 0 || ofs > (s.length - len | 0)) {
    throw [
          Caml_builtin_exceptions.invalid_argument,
          "String.fill / Bytes.fill"
        ];
  }
  return Caml_bytes.caml_fill_bytes(s, ofs, len, c);
}

function blit(s1, ofs1, s2, ofs2, len) {
  if (len < 0 || ofs1 < 0 || ofs1 > (s1.length - len | 0) || ofs2 < 0 || ofs2 > (s2.length - len | 0)) {
    throw [
          Caml_builtin_exceptions.invalid_argument,
          "Bytes.blit"
        ];
  }
  return Caml_bytes.caml_blit_bytes(s1, ofs1, s2, ofs2, len);
}

function blit_string(s1, ofs1, s2, ofs2, len) {
  if (len < 0 || ofs1 < 0 || ofs1 > (s1.length - len | 0) || ofs2 < 0 || ofs2 > (s2.length - len | 0)) {
    throw [
          Caml_builtin_exceptions.invalid_argument,
          "String.blit / Bytes.blit_string"
        ];
  }
  return Caml_bytes.caml_blit_string(s1, ofs1, s2, ofs2, len);
}

function iter(f, a) {
  for(var i = 0 ,i_finish = a.length - 1 | 0; i <= i_finish; ++i){
    Curry._1(f, a[i]);
  }
  return /* () */0;
}

function iteri(f, a) {
  for(var i = 0 ,i_finish = a.length - 1 | 0; i <= i_finish; ++i){
    Curry._2(f, i, a[i]);
  }
  return /* () */0;
}

function concat(sep, l) {
  if (l) {
    var hd = l[0];
    var num = /* record */[/* contents */0];
    var len = /* record */[/* contents */0];
    List.iter((function (s) {
            num[0] = num[0] + 1 | 0;
            len[0] = len[0] + s.length | 0;
            return /* () */0;
          }), l);
    var r = Caml_bytes.caml_create_bytes(len[0] + Caml_int32.imul(sep.length, num[0] - 1 | 0) | 0);
    Caml_bytes.caml_blit_bytes(hd, 0, r, 0, hd.length);
    var pos = /* record */[/* contents */hd.length];
    List.iter((function (s) {
            Caml_bytes.caml_blit_bytes(sep, 0, r, pos[0], sep.length);
            pos[0] = pos[0] + sep.length | 0;
            Caml_bytes.caml_blit_bytes(s, 0, r, pos[0], s.length);
            pos[0] = pos[0] + s.length | 0;
            return /* () */0;
          }), l[1]);
    return r;
  } else {
    return empty;
  }
}

function cat(s1, s2) {
  var l1 = s1.length;
  var l2 = s2.length;
  var r = Caml_bytes.caml_create_bytes(l1 + l2 | 0);
  Caml_bytes.caml_blit_bytes(s1, 0, r, 0, l1);
  Caml_bytes.caml_blit_bytes(s2, 0, r, l1, l2);
  return r;
}

function is_space(param) {
  var switcher = param - 9 | 0;
  if (switcher > 4 || switcher < 0) {
    return switcher === 23;
  } else {
    return switcher !== 2;
  }
}

function trim(s) {
  var len = s.length;
  var i = 0;
  while(i < len && is_space(s[i])) {
    i = i + 1 | 0;
  };
  var j = len - 1 | 0;
  while(j >= i && is_space(s[j])) {
    j = j - 1 | 0;
  };
  if (j >= i) {
    return sub(s, i, (j - i | 0) + 1 | 0);
  } else {
    return empty;
  }
}

function escaped(s) {
  var n = 0;
  for(var i = 0 ,i_finish = s.length - 1 | 0; i <= i_finish; ++i){
    var match = s[i];
    var tmp;
    if (match >= 32) {
      var switcher = match - 34 | 0;
      tmp = switcher > 58 || switcher < 0 ? (
          switcher >= 93 ? 4 : 1
        ) : (
          switcher > 57 || switcher < 1 ? 2 : 1
        );
    } else {
      tmp = match >= 11 ? (
          match !== 13 ? 4 : 2
        ) : (
          match >= 8 ? 2 : 4
        );
    }
    n = n + tmp | 0;
  }
  if (n === s.length) {
    return copy(s);
  } else {
    var s$prime = Caml_bytes.caml_create_bytes(n);
    n = 0;
    for(var i$1 = 0 ,i_finish$1 = s.length - 1 | 0; i$1 <= i_finish$1; ++i$1){
      var c = s[i$1];
      var exit = 0;
      if (c >= 35) {
        if (c !== 92) {
          if (c >= 127) {
            exit = 1;
          } else {
            s$prime[n] = c;
          }
        } else {
          exit = 2;
        }
      } else if (c >= 32) {
        if (c >= 34) {
          exit = 2;
        } else {
          s$prime[n] = c;
        }
      } else if (c >= 14) {
        exit = 1;
      } else {
        switch (c) {
          case 8 :
              s$prime[n] = /* "\\" */92;
              n = n + 1 | 0;
              s$prime[n] = /* "b" */98;
              break;
          case 9 :
              s$prime[n] = /* "\\" */92;
              n = n + 1 | 0;
              s$prime[n] = /* "t" */116;
              break;
          case 10 :
              s$prime[n] = /* "\\" */92;
              n = n + 1 | 0;
              s$prime[n] = /* "n" */110;
              break;
          case 0 :
          case 1 :
          case 2 :
          case 3 :
          case 4 :
          case 5 :
          case 6 :
          case 7 :
          case 11 :
          case 12 :
              exit = 1;
              break;
          case 13 :
              s$prime[n] = /* "\\" */92;
              n = n + 1 | 0;
              s$prime[n] = /* "r" */114;
              break;
          
        }
      }
      switch (exit) {
        case 1 :
            s$prime[n] = /* "\\" */92;
            n = n + 1 | 0;
            s$prime[n] = 48 + (c / 100 | 0) | 0;
            n = n + 1 | 0;
            s$prime[n] = 48 + (c / 10 | 0) % 10 | 0;
            n = n + 1 | 0;
            s$prime[n] = 48 + c % 10 | 0;
            break;
        case 2 :
            s$prime[n] = /* "\\" */92;
            n = n + 1 | 0;
            s$prime[n] = c;
            break;
        
      }
      n = n + 1 | 0;
    }
    return s$prime;
  }
}

function map(f, s) {
  var l = s.length;
  if (l === 0) {
    return s;
  } else {
    var r = Caml_bytes.caml_create_bytes(l);
    for(var i = 0 ,i_finish = l - 1 | 0; i <= i_finish; ++i){
      r[i] = Curry._1(f, s[i]);
    }
    return r;
  }
}

function mapi(f, s) {
  var l = s.length;
  if (l === 0) {
    return s;
  } else {
    var r = Caml_bytes.caml_create_bytes(l);
    for(var i = 0 ,i_finish = l - 1 | 0; i <= i_finish; ++i){
      r[i] = Curry._2(f, i, s[i]);
    }
    return r;
  }
}

function uppercase(s) {
  return map(Char.uppercase, s);
}

function lowercase(s) {
  return map(Char.lowercase, s);
}

function apply1(f, s) {
  if (s.length === 0) {
    return s;
  } else {
    var r = copy(s);
    r[0] = Curry._1(f, s[0]);
    return r;
  }
}

function capitalize(s) {
  return apply1(Char.uppercase, s);
}

function uncapitalize(s) {
  return apply1(Char.lowercase, s);
}

function index_rec(s, lim, _i, c) {
  while(true) {
    var i = _i;
    if (i >= lim) {
      throw Caml_builtin_exceptions.not_found;
    }
    if (s[i] === c) {
      return i;
    } else {
      _i = i + 1 | 0;
      continue ;
    }
  };
}

function index(s, c) {
  return index_rec(s, s.length, 0, c);
}

function index_from(s, i, c) {
  var l = s.length;
  if (i < 0 || i > l) {
    throw [
          Caml_builtin_exceptions.invalid_argument,
          "String.index_from / Bytes.index_from"
        ];
  }
  return index_rec(s, l, i, c);
}

function rindex_rec(s, _i, c) {
  while(true) {
    var i = _i;
    if (i < 0) {
      throw Caml_builtin_exceptions.not_found;
    }
    if (s[i] === c) {
      return i;
    } else {
      _i = i - 1 | 0;
      continue ;
    }
  };
}

function rindex(s, c) {
  return rindex_rec(s, s.length - 1 | 0, c);
}

function rindex_from(s, i, c) {
  if (i < -1 || i >= s.length) {
    throw [
          Caml_builtin_exceptions.invalid_argument,
          "String.rindex_from / Bytes.rindex_from"
        ];
  }
  return rindex_rec(s, i, c);
}

function contains_from(s, i, c) {
  var l = s.length;
  if (i < 0 || i > l) {
    throw [
          Caml_builtin_exceptions.invalid_argument,
          "String.contains_from / Bytes.contains_from"
        ];
  }
  try {
    index_rec(s, l, i, c);
    return true;
  }
  catch (exn){
    if (exn === Caml_builtin_exceptions.not_found) {
      return false;
    } else {
      throw exn;
    }
  }
}

function contains(s, c) {
  return contains_from(s, 0, c);
}

function rcontains_from(s, i, c) {
  if (i < 0 || i >= s.length) {
    throw [
          Caml_builtin_exceptions.invalid_argument,
          "String.rcontains_from / Bytes.rcontains_from"
        ];
  }
  try {
    rindex_rec(s, i, c);
    return true;
  }
  catch (exn){
    if (exn === Caml_builtin_exceptions.not_found) {
      return false;
    } else {
      throw exn;
    }
  }
}

var compare = Caml_obj.caml_compare;

var unsafe_to_string = Caml_bytes.bytes_to_string;

var unsafe_of_string = Caml_bytes.bytes_of_string;

exports.make = make;
exports.init = init;
exports.empty = empty;
exports.copy = copy;
exports.of_string = of_string;
exports.to_string = to_string;
exports.sub = sub;
exports.sub_string = sub_string;
exports.extend = extend;
exports.fill = fill;
exports.blit = blit;
exports.blit_string = blit_string;
exports.concat = concat;
exports.cat = cat;
exports.iter = iter;
exports.iteri = iteri;
exports.map = map;
exports.mapi = mapi;
exports.trim = trim;
exports.escaped = escaped;
exports.index = index;
exports.rindex = rindex;
exports.index_from = index_from;
exports.rindex_from = rindex_from;
exports.contains = contains;
exports.contains_from = contains_from;
exports.rcontains_from = rcontains_from;
exports.uppercase = uppercase;
exports.lowercase = lowercase;
exports.capitalize = capitalize;
exports.uncapitalize = uncapitalize;
exports.compare = compare;
exports.unsafe_to_string = unsafe_to_string;
exports.unsafe_of_string = unsafe_of_string;
/* No side effect */