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1995-06-29
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LID(1) Unix Programmer's Manual LID(1)
NAME
lid, gid, eid - query id database
SYNOPSIS
lid [-ffile] [-un] [-edoxamse] patterns...
gid [-ffile] [-edoxamse] patterns...
eid [-ffile] [-doxamse] patterns...
aid [-ffile] [-doxams] patterns...
DESCRIPTION
These commands provide a flexible query interface to the id database.
--
Lid does a lookup on patters and prints out lines in this way:
--- -------
idname ../hdir/hfile.h ../cdir/{cfile1,cfile2}.c
Notice that multiple files with the same directory prefix and suffix are
concatenated in the globbing-set-notation of csh(1). Also notice that
---
all of the id database query commands adjust the list of pathnames to be
--
relative to your current working directory, provided that mkid(1) was
----
used to build the database, and your working directory is located within
the sub-tree covered by the id database.
--
If multiple names match on pattern, then there will be one line of output
per name. The mnemonic significance of the name is l(ookup) id.
- ----- --
Gid does a lookup and then searches for the names it matches in the files
---
where they occur. The mnemonic for this name is g(rep)id.
- --- --
Eid does a lookup, and then invokes an editor on all files with the
---
matched name as an initial search string. Of course, this name stands
for e(dit) id.
- --- --
Eid uses four environment variables to control its invocation of the
---
editor. Naturally, EDITOR is used to locate the editing program. EIDARG
is a printf(3S) string used to specify the form of the initial-search-
------
string argument. If the editor does not support such an argument, this
variable may be left unset. EIDLDEL and EIDRDEL specify the form of the
left and right word-delimiters respectively. The best way to explain the
use of these last three variables is with an example. Here are the
proper settings for vi(1):
EIDARG='+/%s/' # initial search argument template
EIDLDEL='\<' # left word-delimiter
EIDRDEL='\>' # right word-delimiter
Patterns may be simple alpha-numeric strings, or regular expressions in
--------
the style of regcmp(3). If the string contains no regular-expression
------
meta-characters, it is searched for as a word. If the string contains
----
meta-characters, or if the -e argument is supplied, it is searched for as
regular-expression.
Aid produces output in the style of lid but its pattern arguments are
--- ---
searched for as substrings within the identifiers in the database. No
regular-expression search is performed, even if the pattern contains
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LID(1) Unix Programmer's Manual LID(1)
meta-characters. The search is conducted in an alphabetic case
insensitive manner. The mnemonic for this name is a(propos) id.
- ------ --
The following options are recognized:
-ffile Use file as the database instead of the default ID.
----
-un Lists all identifiers in the database that are non-unique
within the first n characters. This facility is particularly
-
helpful when porting a program to a system whose compiler or
linker has fewer significant characters for identifiers.
The remaining options are for use in conjunction with numeric patterns:
-doxa These options may be specified in any combination. They limit
numeric matches to specific radixes. The -d, -o, and -x
options limit matches to decimal, octal, and hexadecimal
respectively. The -a option is a shorthand for specifying all
three radixes.
Searches for numbers are conducted numerically rather than lexically, so
that all representations for a given number are potentially available
from a single search.
-m Merge multiple lines of output into a single line.
-s Limit the results of the search to identifiers that occur only
once in the entire set of sources covered by the database.
This option is useful for finding identifiers that are defined
but never used.
SEE ALSO
mkid(1), fid(1).
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