public StrFormWord(string[] s, SubWord[] SWT)
{
strs = s; subwords = SWT;
}
/// <summary>
/// @"などの直後からの開始
/// return時にはendWithの文字がCurrentになっているはず。終端の適切さの検証は呼び出し元が行う。
/// </summary>
/// <returns></returns>
public static StrFormWord AnalyseFormattedString(StringStream st, FormStrEndWith endWith, bool trim)
{
List<string> strs = new List<string>();
List<SubWord> SWTs = new List<SubWord>();
StringBuilder buffer = new StringBuilder(100);
while (true)
{
char cur = st.Current;
switch (cur)
{
case '\n':
case '\0':
goto end;
case '\"':
if (endWith == FormStrEndWith.DoubleQuotation)
goto end;
buffer.Append(cur);
break;
case '#':
if (endWith == FormStrEndWith.Sharp)
goto end;
buffer.Append(cur);
break;
case ',':
if ((endWith == FormStrEndWith.Comma) || (endWith == FormStrEndWith.LeftParenthesis_Bracket_Comma_Semicolon))
goto end;
buffer.Append(cur);
break;
case '(':
case '[':
case ';':
if (endWith == FormStrEndWith.LeftParenthesis_Bracket_Comma_Semicolon)
goto end;
buffer.Append(cur);
break;
case '%':
strs.Add(buffer.ToString());
buffer.Remove(0, buffer.Length);
st.ShiftNext();
SWTs.Add(new PercentSubWord(Analyse(st, LexEndWith.Percent, false, false)));
if (st.Current != '%')
throw new CodeEE("\'%\'が使われましたが対応する\'%\'が見つかりません");
break;
case '{':
strs.Add(buffer.ToString());
buffer.Remove(0, buffer.Length);
st.ShiftNext();
SWTs.Add(new CurlyBraceSubWord(Analyse(st, LexEndWith.RightCurlyBrace, false, false)));
if (st.Current != '}')
throw new CodeEE("\'{\'が使われましたが対応する\'}\'が見つかりません");
break;
case '*':
case '+':
case '=':
case '/':
case '$':
if (st.TripleSymbol())
{
strs.Add(buffer.ToString());
buffer.Remove(0, buffer.Length);
st.Jump(3);
SWTs.Add(new TripleSymbolSubWord(cur));
continue;
}
else
buffer.Append(cur);
break;
case '\\'://エスケープ文字の使用
st.ShiftNext();
cur = st.Current;
switch (cur)
{
case '\0':
throw new CodeEE("エスケープ文字\\の後に文字がありません");
case '\n': break;
case 's': buffer.Append(' '); break;
case 'S': buffer.Append(' '); break;
case 't': buffer.Append('\t'); break;
case 'n': buffer.Append('\n'); break;
case '@'://\@～～?～～#～～\@
{
if ((endWith == FormStrEndWith.YenAt) || (endWith == FormStrEndWith.Sharp))
goto end;
strs.Add(buffer.ToString());
buffer.Remove(0, buffer.Length);
st.ShiftNext();
SWTs.Add(AnalyseYenAt(st));
continue;
}
default:
buffer.Append(cur);
st.ShiftNext();
continue;
}
break;
default:
buffer.Append(cur);
break;
}
st.ShiftNext();
}
end:
strs.Add(buffer.ToString());
string[] retStr = new string[strs.Count];
SubWord[] retSWTs = new SubWord[SWTs.Count];
strs.CopyTo(retStr);
SWTs.CopyTo(retSWTs);
if (trim && retStr.Length > 0)
{
retStr[0] = retStr[0].TrimStart(new char[] { ' ', '\t' });
retStr[retStr.Length - 1] = retStr[retStr.Length - 1].TrimEnd(new char[] { ' ', '\t' });
}
return new StrFormWord(retStr, retSWTs);
}