75 lines
1.5 KiB
Text
75 lines
1.5 KiB
Text
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# ------------------------------------------------------------------------------
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# A C++ like string class (http://en.cppreference.com/w/cpp/string/basic_string)
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# ------------------------------------------------------------------------------
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# capture global string
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var _string = string;
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var string = {
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# public:
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new: func(str)
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{
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return { parents: [string], _str: str };
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},
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find_first_of: func(s, pos = 0)
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{
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return me._find(pos, size(me._str), s, 1);
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},
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find: func(s, pos = 0)
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{
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return me.find_first_of(s, pos);
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},
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find_first_not_of: func(s, pos = 0)
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{
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return me._find(pos, size(me._str), s, 0);
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},
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substr: func(pos, len = nil)
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{
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return substr(me._str, pos, len);
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},
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size: func()
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{
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return size(me._str);
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},
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# private:
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_eq: func(pos, s)
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{
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for(var i = 0; i < size(s); i += 1)
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if( me._str[pos] == s[i] )
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return 1;
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return 0;
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},
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_find: func(first, last, s, eq)
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{
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var sign = first <= last ? 1 : -1;
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for(var i = first; sign * i < last; i += sign)
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if( me._eq(i, s) == eq )
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return i;
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return -1;
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}
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};
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# converts a string to an unsigned integer
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var stoul = func(str, base = 10)
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{
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var val = 0;
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for(var pos = 0; pos < size(str); pos += 1)
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{
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var c = str[pos];
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if( _string.isdigit(c) )
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var digval = c - `0`;
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else if( _string.isalpha(c) )
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var digval = _string.toupper(c) - `A` + 10;
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else
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break;
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if( digval >= base )
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break;
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val = val * base + digval;
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}
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return val;
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};
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