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Celestin Apprentice 7
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Small Eiffel 0.4.8
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finder.hlp
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1997-04-13
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finder <Class>
Command `finder' tells you which file is loaded when searching
for an Eiffel <Class>.
When an Eiffel file is found, `finder' prints the full path name.
The exit status is set to a good value.
To see the loading path used by SmallEiffel, you can for example
type the `finder' command using a bad (inexistant) class name.
The default loading path may be updated (see READ_ME file of
the `sys' directory).
Without argument, `finder' command prints this help.
The algorithm used by SmallEiffel to search for an Eiffel
source file has two major steps.
1- First Step - SmallEiffel looks all along the loading path using
<class> name in lower case as tail. If needed, the Eiffel
suffix (".e") is added automatically. SmallEiffel only looks for
suffixed files on the disk. Only the first file encountered
according to the order of the path is taken in account.
File is always supposed to have the same name as the inside
class definition.
2 - Second Step - : is done only when first step has failed to find
a file. SmallEiffel tries to search for files "rename.se" in all
directories of the path.
A file "rename.se" allows the user to put in file "foo" the class
"bar" for example.
Such renaming facilities has been added especially for DOS (file
manes is limited to 8 characters).
Each line of a "rename.se" file is a renaming directive containing
two names, first the full name and then the short name to use in the
directory where the "rename.se" file is.
File "SmallEiffel/misc/rename.se" is an example of a "rename.se" file
to put in SmallEiffel/lib_std/ for DOS.
Thus, knowing the algorithm of SmallEiffel to find a class file, it is
better not to use the renaming facilities to speed up class loading.
-- Changing the default loading path --
To change the default loading path, you need to add a special
file which name is "loadpath.se" in the directoy you type a
command of SmallEiffel (`compile', `finder', `pretty', ...).
Each line of the file "loadpath.se" must be an existing
directory path.
All directories of file "loadpath.se" are prepend to the default
loading path.