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NAME
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complete, freecompletion – file name completion
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SYNOPSIS
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#include <u.h>
#include <libc.h>
#include <complete.h>
typedef struct CompletionCompletion;
struct Completion{
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uchar advance;
uchar complete;
char *string;
int nmatch;
int nfile;
char **filename;
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};
Completion* complete(char *dir, char *s);
void freecompletion(Completion *c);
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DESCRIPTION
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The complete function implements file name completion. Given a
directory dir and a string s, it returns an analysis of the file
names in that directory that begin with the string s. The fields
nmatch and nfile will be set to the number of files that match
the prefix and filename will be filled in with their names. If
the file named is a directory, a slash
character will be appended to it.
If no files match the string, nmatch will be zero, but complete
will return the full set of files in the directory, with nfile
set to their number.
The flag advance reports whether the string s can be extended
without changing the set of files that match. If true, string
will be set to the extension; that is, the value of string may
be appended to s by the caller to extend the embryonic file name
unambiguously.
The flag complete reports whether the extended file name uniquely
identifies a file. If true, string will be suffixed with a blank,
or a slash and a blank, depending on whether the resulting file
name identifies a plain file or a directory.
The freecompletion function frees a Completion structure and its
contents.
In rio(1) and acme(1), file name completion is triggered by a
control-F character or an Insert character.
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SOURCE
SEE ALSO
DIAGNOSTICS
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The complete function returns a null pointer and sets errstr if
the directory is unreadable or there is some other error.
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BUGS
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The behavior of file name completion should be controlled by the
plumber.
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