1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
|
{ Concatenates a number of text files. This code is in the public domain. }
program concat;
uses
SysUtils, Classes;
var
Dst: TextFile;
FileList: TStringList;
IgnoreNonExisting: boolean;
procedure usage;
begin
Writeln('Usage: concat [-i] <srcfile1> [<srcfile2> ..] <dstfile>');
Writeln;
Writeln('Options:');
Writeln(' -i Ignore non-existent files');
Writeln;
halt(1);
end;
procedure DoConcat;
var
Src: TextFile;
I: Longint;
Line: Ansistring;
OldFilemode: byte;
begin
OldFilemode:=FileMode;
Filemode:=0;
for I:=0 to FileList.Count-1 do
begin
Assign(Src,FileList[i]);
{$i-}
Reset(Src);
while ioresult<>0 do
begin
{ wait for lingering locks to disappear }
Sleep(200);
Reset(Src);
end;
{$i+}
while not Eof(Src) do
begin
ReadLn(Src,Line);
Writeln(Dst,Line);
end;
Close(Src);
end;
Filemode:=OldFilemode;
Close(Dst);
end;
procedure CheckParas;
var
FirstFile,
I: Longint;
Exists: boolean;
begin
{ enough parameters? }
if ParamCount<2 then
Usage;
FirstFile:=1;
if UpperCase(ParamStr(1))='-i' then
begin
IgnoreNonExisting:=true;
Inc(FirstFile);
end;
{ check destination }
if DirectoryExists(ParamStr(ParamCount)) then
begin
Writeln('Destination "',ParamStr(ParamCount),'" is a directory');
halt(2);
end;
Assign(Dst,ParamStr(ParamCount));
{$i-}
Rewrite(Dst);
{$i+}
if IOResult<>0 then
begin
Writeln('Unable to create destination file "',ParamStr(ParamCount),'"');
halt(2);
end;
{ check source(s) }
for I:=FirstFile to ParamCount-1 do
begin
Exists:=True;
if not FileExists(ParamStr(I)) then
begin
if not IgnoreNonExisting then
begin
Writeln('File "',ParamStr(I),'" does not exist');
halt(2);
end;
Exists:=False;
end
else if DirectoryExists(ParamStr(I)) then
begin
Writeln('"',ParamStr(I),'" is a directory');
halt(2);
end
else if Exists then
FileList.Add(ParamStr(I));
end
end;
begin
FileList:=TStringList.Create;
CheckParas;
DoConcat;
FileList.Free;
end.
|
