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added help message to vmake if run without arguments

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This commit is contained in:
Norayr Chilingarian 2013-10-31 23:03:06 +04:00
parent 776ccc8b46
commit 6b3baeb47f
1 changed files with 22 additions and 3 deletions
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25
src/tools/vmake/vmake.Mod
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@ -28,6 +28,22 @@ TYPE
next: Import;
END ;
PROCEDURE showhelp;
BEGIN
Out.String ("vmake topologically sorts a set of Oberon source file names according to their import relationships"); Out.Ln;
Out.String ("so that they are in a correct compilation order. The generated list can be prepended with the"); Out.Ln;
Out.String ("command voc and can be compiled"); Out.Ln;
Out.Ln;
Out.String ("vmake {filename} ~"); Out.Ln;
Out.String ("reads a list of file names describing Oberon modules. The import relationships of these"); Out.Ln;
Out.String ("modules are inspected and the modules are sorted accordingly. The sorted list of file names"); Out.Ln;
Out.String ("is written to the standard output."); Out.Ln;
Out.String ("in case modules in different directories must be checked, it is also possible to use MODULES environment variable"); Out.Ln;
Out.String ("which may contain module paths."); Out.Ln
END showhelp;
PROCEDURE Append (VAR name: ModuleName; ext: ARRAY OF CHAR);
VAR i, j: INTEGER;
BEGIN
@ -40,9 +56,12 @@ PROCEDURE ReadModuleList (VAR list: Module);
VAR m: Module; name: ModuleName;
BEGIN
In.Open; list := NIL; In.Name(name);
WHILE In.Done DO
NEW(m); m.name := name; m.imports := NIL; m.ref := 0; m.next := list; list := m;
In.Name(name)
IF ~In.Done THEN showhelp
ELSE
WHILE In.Done DO
NEW(m); m.name := name; m.imports := NIL; m.ref := 0; m.next := list; list := m;
In.Name(name)
END
END
END ReadModuleList;