MODULE Find;
FROM InOut IMPORT Write,WriteCard,WriteString,WriteLn;
FROM Files IMPORT FILE,FileState,Open,Close,Read;
FROM CmdArgs IMPORT Argc,Argv;
FROM FileSearch IMPORT GetFileName,GetNextFile,
FileNameNode,MakeFileList,pFileList;
FROM BasicFileIO IMPORT FileIOStruct,pFileIOStruct,
OpenFile,CloseFile,EOFFile,FileIOStatus;
FROM StdFileIO IMPORT GetLine;
CONST
EOS = 0C;
MAXLINE = 128;
FILENAMESIZE = 14;
EOFMARK = 32C;
VAR
FileName: ARRAY [0..FILENAMESIZE] OF CHAR;
FileMatch: ARRAY [0..FILENAMESIZE] OF CHAR;
Target: ARRAY [0..MAXLINE] OF CHAR;
CPos,FileNumber,LineNumber,nArgc: CARDINAL;
pList: pFileList;
PROCEDURE putLine(FileName:ARRAY OF CHAR;Line:CARDINAL;
Buffer: ARRAY OF CHAR);
BEGIN
WriteString(FileName);
Write(' ');WriteCard(Line,1);Write(':');
WriteString(Buffer);
WriteLn
END putLine;
PROCEDURE findTarget(Target,Line:ARRAY OF CHAR): BOOLEAN;
VAR
t,l: CARDINAL;
found: BOOLEAN;
BEGIN
found := FALSE;
t := 0; l := 0;
WHILE (Line[l] # EOS) AND (NOT found) DO
IF Line[l] = Target[0] THEN
t := 1;
WHILE Line[l+t] = Target[t] DO
INC(t);
END;
IF Target[t] = EOS THEN
found := TRUE;
END;
END;
INC(l);
END;
RETURN found
END findTarget;
PROCEDURE Usage();
BEGIN
WriteString('find');WriteLn;
WriteString(' TargetString File1 File2 FIle3,,,,');WriteLn
END Usage;
PROCEDURE MatchLines(FileName,TargetString: ARRAY OF CHAR);
VAR
pFileIO: pFileIOStruct;
Line: ARRAY [0..MAXLINE-1] OF CHAR;
Chars: CARDINAL;
NLines: CARDINAL;
Junk: FileIOStatus;
BEGIN
IF OpenFile(FileName,pFileIO) = Success THEN
NLines := 1;
WHILE NOT EOFFile(pFileIO) DO
Chars := GetLine(pFileIO,Line);
IF findTarget(TargetString,Line) THEN
putLine(FileName,NLines,Line);
END;
INC(NLines);
END;
Junk := CloseFile(pFileIO)
END
END MatchLines;
BEGIN
nArgc := Argc();
IF nArgc < 1 THEN
Usage();
HALT
END;
Argv(0,Target);
FileNumber := 1;
WHILE FileNumber < nArgc DO
Argv(FileNumber,FileMatch);
pList := MakeFileList(FileMatch);
WHILE pList # NIL DO
GetFileName(pList,FileName);
MatchLines(FileName,Target);
pList := GetNextFile(pList)
END;
INC(FileNumber)
END
END Find.
これで、FileSearchモジュール内部のデータ構造をFindが知る必要がなくなりました。
ｺﾒﾝﾄをする