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add new canonical function

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David Rose 2003-03-05 21:04:13 +00:00
parent 0f3b23ea37
commit 7588017984
1 changed files with 15 additions and 0 deletions
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15
panda/src/doc/ppremake-variables.txt
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@ -231,6 +231,21 @@ value is either the empty string (false) or a nonempty string (true).
standard form by removing consecutive repeated slashes and
collapsing /../ where possible.
$[canonical <filename>] - convert the indicated filename to
canonical form by replacing the directory part with the
fully-qualified directory part. This is done by changing to that
directory and calling getcwd(). The result is similar to that of
$[standardize], above, but it is more likely to be consistent
across different filenames.
This has the effect of (a) converting relative paths to absolute
paths, (b) always resolving a given directory name to the same
string, even if different symbolic links are traversed, and (c)
changing nice symbolic-link paths like /fit/people/drose to ugly
NFS automounter names like /hosts/dimbo/usr2/fit/people/drose.
This can be troubling, but sometimes this is exactly what you
want.
$[length <argument>] - returns the length of the indicated argument
in characters, not counting leading or trailing spaces.