public void Restore(CppWordReader wr)
{
wr.lreader = this.lreader;
wr.cword = this.cword;
wr.line_count = this.line_count;
wr.wtype = this.wtype;
}
public State(CppWordReader wr)
{
this.lreader = wr.lreader;
this.cword = wr.cword;
this.line_count = wr.line_count;
this.wtype = wr.wtype;
}
public string Instantiate(string[] args, int line, string file)
{
_debug_.PreprocessorAssert(args.Length == parameters.Length, "実引数の長さと仮引数の長さの不整合");
// a. 識別子を置換
// b. #@ → 文字化
// c. #& → 文字列化
// d. ## トークン接続
// ■※■ aa##aa 等には対応する。aa ## aa には対応しない。
System.Text.StringBuilder buf = new System.Text.StringBuilder();
CppWordReader wr = CppWordReader.MacroContentMode(content);
const int MODE_NON = 0;
const int MODE_STR = 1;
const int MODE_CHR = 2;
int mode = MODE_NON;
while (wr.ReadNext())
{
string word = wr.CurrentWord;
switch (wr.CurrentType.value)
{
case WordType.vIdentifier:
int i = IndexOfPrameter(word);
if (i >= 0)
{
word = args[i];
}
goto default;
case WordType.vOperator:
if (mode != MODE_NON)
{
goto default;
}
if (word == "#&")
{
mode = MODE_STR;
break;
}
else if (word == "#@")
{
mode = MODE_CHR;
break;
}
else if (word == "##")
{
break;
}
goto default;
case WordType.vSpace:
case WordType.vComment:
buf.Append(wr.CurrentWord);
break;
default:
if (mode == MODE_CHR)
{
buf.Append(afh.Text.TextUtils.Characterize(word));
}
else if (mode == MODE_STR)
{
buf.Append(afh.Text.TextUtils.Stringize(word));
}
else
{
buf.Append(word);
}
mode = MODE_NON;
break;
}
}
//--------------------------------------------------------
buf.AppendLine();
if (file != null)
{
buf.AppendFormat("#line {0} {1}\r\n", line, file);
}
return(buf.ToString());
}
private void process(string text)
{
CppWordReader wr_orig = this.wr;
this.wr = new CppWordReader(text);
while (wr.ReadNext())
{
switch (wr.CurrentType.value)
{
case WordType.vKeyWord:
// @ マクロ
break;
case WordType.vTag:
// # マクロ
// #line
{
Rgx.Capture c = Rgx.Match(@"#:bline:b((?<line>\d+):b)?(?<filename>:"")", wr.CurrentWord);
if (c != null)
{
filename = c.Groups["filename"].Last.Value;
if (c.Groups["line"].Count > 0)
{
int line;
if (int.TryParse(c.Groups["line"].Last.Value, out line))
{
wr.LineNumber = line - 1;
}
}
buf.AppendFormat("#line {0} {1}", wr.LineNumber + 1, filename);
break;
}
}
// #pragma begin(define)
{
Rgx.Capture c = DefineMacro.REG_DECL.Match(wr.CurrentWord);
if (c != null)
{
DefineMacro macro = this.ReadDefineMacro(c);
if (!macros.ContainsKey(macro.Name))
{
macros.Add(macro.Name, macro);
break;
}
else
{
buf.AppendLine();
buf.AppendLine("#error マクロ " + macro.Name + " は既に定義されています");
buf.AppendFormat("#line {0} {1}", wr.LineNumber + 1, filename);
}
}
}
// #pragma undef
{
Rgx.Capture c = DefineMacro.REG_UNDEF.Match(wr.CurrentWord);
if (c != null)
{
string name = c.Groups["name"].Last.Value;
if (macros.Remove(name))
{
break;
}
buf.AppendLine("#error " + name + " は定義されていないマクロです");
buf.AppendFormat("#line {0} {1}\r\n", wr.LineNumber + 1, filename);
}
}
goto default;
case WordType.vIdentifier:
if (!macros.ContainsKey(wr.CurrentWord))
{
goto default;
}
this.ReadMacroRef(wr.CurrentWord);
break;
case WordType.vComment:
default:
buf.Append(wr.CurrentWord);
break;
}
}
this.wr = wr_orig;
}