1 files changed, 0 insertions, 424 deletions
diff --git a/nim/parsecfg.pas b/nim/parsecfg.pas
deleted file mode 100755
index ba6a98679..000000000
--- a/nim/parsecfg.pas
+++ /dev/null
@@ -1,424 +0,0 @@
-//
-//
-//            Nimrod's Runtime Library
-//        (c) Copyright 2009 Andreas Rumpf
-//
-//    See the file "copying.txt", included in this
-//    distribution, for details about the copyright.
-//
-unit parsecfg;
-
-// A HIGH-PERFORMANCE configuration file parser;
-// the Nimrod version of this file is part of the
-// standard library.
-
-interface
-
-{$include 'config.inc'}
-
-uses
-  nsystem, charsets, llstream, sysutils, nhashes, strutils, lexbase;
-
-type
-  TCfgEventKind = (
-    cfgEof,     // end of file reached
-    cfgSectionStart, // a ``[section]`` has been parsed
-    cfgKeyValuePair, // a ``key=value`` pair has been detected
-    cfgOption, // a ``--key=value`` command line option
-    cfgError   // an error ocurred during parsing; msg contains the
-               // error message
-  );
-  TCfgEvent = {@ignore} record
-    kind: TCfgEventKind;
-    section: string;
-    key, value: string;
-    msg: string;
-  end;
-  {@emit object(NObject)
-    case kind: TCfgEventKind of
-      cfgEof: ();
-      cfgSectionStart: (section: string);
-      cfgKeyValuePair, cfgOption: (key, value: string);
-      cfgError: (msg: string);
-  end;}
-  TTokKind = (tkInvalid, tkEof, // order is important here!
-    tkSymbol, tkEquals, tkColon,
-    tkBracketLe, tkBracketRi, tkDashDash
-  );
-  TToken = record       // a token
-    kind: TTokKind;     // the type of the token
-    literal: string;    // the parsed (string) literal
-  end;
-  TParserState = (startState, commaState);
-  TCfgParser = object(TBaseLexer)
-    tok: TToken;
-    state: TParserState;
-    filename: string;
-  end;
-
-procedure Open(var c: TCfgParser; const filename: string;
-               inputStream: PLLStream);
-procedure Close(var c: TCfgParser);
-
-function next(var c: TCfgParser): TCfgEvent;
-
-function getColumn(const c: TCfgParser): int;
-function getLine(const c: TCfgParser): int;
-function getFilename(const c: TCfgParser): string;
-
-function errorStr(const c: TCfgParser; const msg: string): string;
-
-implementation
-
-const
-  SymChars: TCharSet = ['a'..'z', 'A'..'Z', '0'..'9', '_', #128..#255];
-
-// ----------------------------------------------------------------------------
-procedure rawGetTok(var c: TCfgParser; var tok: TToken); forward;
-
-procedure open(var c: TCfgParser; const filename: string;
-               inputStream: PLLStream);
-begin
-{@ignore}
-  FillChar(c, sizeof(c), 0);
-{@emit}
-  openBaseLexer(c, inputStream);
-  c.filename := filename;
-  c.state := startState;
-  c.tok.kind := tkInvalid;
-  c.tok.literal := '';
-  rawGetTok(c, c.tok);
-end;
-
-procedure close(var c: TCfgParser);
-begin
-  closeBaseLexer(c);
-end;
-
-function getColumn(const c: TCfgParser): int;
-begin
-  result := getColNumber(c, c.bufPos)
-end;
-
-function getLine(const c: TCfgParser): int;
-begin
-  result := c.linenumber
-end;
-
-function getFilename(const c: TCfgParser): string;
-begin
-  result := c.filename
-end;
-
-// ----------------------------------------------------------------------------
-
-procedure handleHexChar(var c: TCfgParser; var xi: int);
-begin
-  case c.buf[c.bufpos] of
-    '0'..'9': begin
-      xi := (xi shl 4) or (ord(c.buf[c.bufpos]) - ord('0'));
-      inc(c.bufpos);
-    end;
-    'a'..'f': begin
-      xi := (xi shl 4) or (ord(c.buf[c.bufpos]) - ord('a') + 10);
-      inc(c.bufpos);
-    end;
-    'A'..'F': begin
-      xi := (xi shl 4) or (ord(c.buf[c.bufpos]) - ord('A') + 10);
-      inc(c.bufpos);
-    end;
-    else begin end // do nothing
-  end
-end;
-
-procedure handleDecChars(var c: TCfgParser; var xi: int);
-begin
-  while c.buf[c.bufpos] in ['0'..'9'] do begin
-    xi := (xi * 10) + (ord(c.buf[c.bufpos]) - ord('0'));
-    inc(c.bufpos);
-  end;
-end;
-
-procedure getEscapedChar(var c: TCfgParser; var tok: TToken);
-var
-  xi: int;
-begin
-  inc(c.bufpos); // skip '\'
-  case c.buf[c.bufpos] of
-    'n', 'N': begin
-      tok.literal := tok.literal +{&} nl;
-      Inc(c.bufpos);
-    end;
-    'r', 'R', 'c', 'C': begin addChar(tok.literal, CR); Inc(c.bufpos); end;
-    'l', 'L': begin addChar(tok.literal, LF); Inc(c.bufpos); end;
-    'f', 'F': begin addChar(tok.literal, FF); inc(c.bufpos); end;
-    'e', 'E': begin addChar(tok.literal, ESC); Inc(c.bufpos); end;
-    'a', 'A': begin addChar(tok.literal, BEL); Inc(c.bufpos); end;
-    'b', 'B': begin addChar(tok.literal, BACKSPACE); Inc(c.bufpos); end;
-    'v', 'V': begin addChar(tok.literal, VT); Inc(c.bufpos); end;
-    't', 'T': begin addChar(tok.literal, Tabulator); Inc(c.bufpos); end;
-    '''', '"': begin addChar(tok.literal, c.buf[c.bufpos]); Inc(c.bufpos); end;
-    '\': begin addChar(tok.literal, '\'); Inc(c.bufpos) end;
-    'x', 'X': begin
-      inc(c.bufpos);
-      xi := 0;
-      handleHexChar(c, xi);
-      handleHexChar(c, xi);
-      addChar(tok.literal, Chr(xi));
-    end;
-    '0'..'9': begin
-      xi := 0;
-      handleDecChars(c, xi);
-      if (xi <= 255) then
-        addChar(tok.literal, Chr(xi))
-      else
-        tok.kind := tkInvalid
-    end
-    else tok.kind := tkInvalid
-  end
-end;
-
-function HandleCRLF(var c: TCfgParser; pos: int): int;
-begin
-  case c.buf[pos] of
-    CR: result := lexbase.HandleCR(c, pos);
-    LF: result := lexbase.HandleLF(c, pos);
-    else result := pos
-  end
-end;
-
-procedure getString(var c: TCfgParser; var tok: TToken; rawMode: Boolean);
-var
-  pos: int;
-  ch: Char;
-  buf: PChar;
-begin
-  pos := c.bufPos + 1; // skip "
-  buf := c.buf; // put `buf` in a register
-  tok.kind := tkSymbol;
-  if (buf[pos] = '"') and (buf[pos+1] = '"') then begin
-    // long string literal:
-    inc(pos, 2); // skip ""
-    // skip leading newline:
-    pos := HandleCRLF(c, pos);
-    buf := c.buf;
-    repeat
-      case buf[pos] of
-        '"': begin
-          if (buf[pos+1] = '"') and (buf[pos+2] = '"') then
-            break;
-          addChar(tok.literal, '"');
-          Inc(pos)
-        end;
-        CR, LF: begin
-          pos := HandleCRLF(c, pos);
-          buf := c.buf;
-          tok.literal := tok.literal +{&} nl;
-        end;
-        lexbase.EndOfFile: begin
-          tok.kind := tkInvalid;
-          break
-        end
-        else begin
-          addChar(tok.literal, buf[pos]);
-          Inc(pos)
-        end
-      end
-    until false;
-    c.bufpos := pos + 3 // skip the three """
-  end
-  else begin // ordinary string literal
-    repeat
-      ch := buf[pos];
-      if ch = '"' then begin
-        inc(pos); // skip '"'
-        break
-      end;
-      if ch in [CR, LF, lexbase.EndOfFile] then begin
-        tok.kind := tkInvalid;
-        break
-      end;
-      if (ch = '\') and not rawMode then begin
-        c.bufPos := pos;
-        getEscapedChar(c, tok);
-        pos := c.bufPos;
-      end
-      else begin
-        addChar(tok.literal, ch);
-        Inc(pos)
-      end
-    until false;
-    c.bufpos := pos;
-  end
-end;
-
-procedure getSymbol(var c: TCfgParser; var tok: TToken);
-var
-  pos: int;
-  buf: pchar;
-begin
-  pos := c.bufpos;
-  buf := c.buf;
-  while true do begin
-    addChar(tok.literal, buf[pos]);
-    Inc(pos);
-    if not (buf[pos] in SymChars) then break;
-  end;
-  c.bufpos := pos;
-  tok.kind := tkSymbol
-end;
-
-procedure skip(var c: TCfgParser);
-var
-  buf: PChar;
-  pos: int;
-begin
-  pos := c.bufpos;
-  buf := c.buf;
-  repeat
-    case buf[pos] of
-      ' ': Inc(pos);
-      Tabulator: inc(pos);
-      '#', ';': while not (buf[pos] in [CR, LF, lexbase.EndOfFile]) do inc(pos);
-      CR, LF: begin
-        pos := HandleCRLF(c, pos);
-        buf := c.buf;
-      end
-      else break // EndOfFile also leaves the loop
-    end
-  until false;
-  c.bufpos := pos;
-end;
-
-procedure rawGetTok(var c: TCfgParser; var tok: TToken);
-begin
-  tok.kind := tkInvalid;
-  setLength(tok.literal, 0);
-  skip(c);
-  case c.buf[c.bufpos] of
-    '=': begin
-      tok.kind := tkEquals;
-      inc(c.bufpos);
-      tok.literal := '='+'';
-    end;
-    '-': begin
-      inc(c.bufPos);
-      if c.buf[c.bufPos] = '-' then inc(c.bufPos);
-      tok.kind := tkDashDash;
-      tok.literal := '--';
-    end;
-    ':': begin
-      tok.kind := tkColon;
-      inc(c.bufpos);
-      tok.literal := ':'+'';
-    end;
-    'r', 'R': begin
-      if c.buf[c.bufPos+1] = '"' then begin
-        Inc(c.bufPos);
-        getString(c, tok, true);
-      end
-      else
-        getSymbol(c, tok);
-    end;
-    '[': begin
-      tok.kind := tkBracketLe;
-      inc(c.bufpos);
-      tok.literal := '['+'';
-    end;
-    ']': begin
-      tok.kind := tkBracketRi;
-      Inc(c.bufpos);
-      tok.literal := ']'+'';
-    end;
-    '"': getString(c, tok, false);
-    lexbase.EndOfFile: tok.kind := tkEof;
-    else getSymbol(c, tok);
-  end
-end;
-
-function errorStr(const c: TCfgParser; const msg: string): string;
-begin
-  result := format('$1($2, $3) Error: $4', [
-    c.filename, toString(getLine(c)), toString(getColumn(c)),
-    msg
-  ]);
-end;
-
-function getKeyValPair(var c: TCfgParser; kind: TCfgEventKind): TCfgEvent;
-begin
-  if c.tok.kind = tkSymbol then begin
-    result.kind := kind;
-    result.key := c.tok.literal;
-    result.value := '';
-    rawGetTok(c, c.tok);
-    while c.tok.literal = '.'+'' do begin
-      addChar(result.key, '.');
-      rawGetTok(c, c.tok);
-      if c.tok.kind = tkSymbol then begin
-        add(result.key, c.tok.literal);
-        rawGetTok(c, c.tok);
-      end
-      else begin
-        result.kind := cfgError;
-        result.msg := errorStr(c, 'symbol expected, but found: ' +
-                               c.tok.literal);
-        break
-      end
-    end;
-    if c.tok.kind in [tkEquals, tkColon] then begin
-      rawGetTok(c, c.tok);
-      if c.tok.kind = tkSymbol then begin
-        result.value := c.tok.literal;
-      end
-      else begin
-        result.kind := cfgError;
-        result.msg := errorStr(c, 'symbol expected, but found: '
-                               + c.tok.literal);
-      end;
-      rawGetTok(c, c.tok);
-    end
-  end
-  else begin
-    result.kind := cfgError;
-    result.msg := errorStr(c, 'symbol expected, but found: ' + c.tok.literal);
-    rawGetTok(c, c.tok);
-  end;
-end;
-
-function next(var c: TCfgParser): TCfgEvent;
-begin
-  case c.tok.kind of
-    tkEof: result.kind := cfgEof;
-    tkDashDash: begin
-      rawGetTok(c, c.tok);
-      result := getKeyValPair(c, cfgOption);
-    end;
-    tkSymbol: begin
-      result := getKeyValPair(c, cfgKeyValuePair);
-    end;
-    tkBracketLe: begin
-      rawGetTok(c, c.tok);
-      if c.tok.kind = tkSymbol then begin
-        result.kind := cfgSectionStart;
-        result.section := c.tok.literal;
-      end
-      else begin
-        result.kind := cfgError;
-        result.msg := errorStr(c, 'symbol expected, but found: ' + c.tok.literal);
-      end;
-      rawGetTok(c, c.tok);
-      if c.tok.kind = tkBracketRi then rawGetTok(c, c.tok)
-      else begin
-        result.kind := cfgError;
-        result.msg := errorStr(c, ''']'' expected, but found: ' + c.tok.literal);
-      end
-    end;
-    tkInvalid, tkBracketRi, tkEquals, tkColon: begin
-      result.kind := cfgError;
-      result.msg := errorStr(c, 'invalid token: ' + c.tok.literal);
-      rawGetTok(c, c.tok);
-    end
-  end
-end;
-
-end.