Re: [9fans] samuel

["ozan s. yigit" <oz@cs.yorku.ca>]

rsc@plan9.bell-labs.com (Russ Cox) wrote:

> 			For many acme users, the
> cscope-like tool of choice is grep, especially
> since cscope doesn't compile on Plan 9 (it's too tied
> to curses [sic]).

i have occasionally used a small toolkit named id [later gnufied and
forgotten as idutils; a non-gnu version cleaned up by mark moraes is
still around in ftp.cs.utoronto.ca] it requires an identifier database
be built forehand. even though it has many creaky parts, it did have
a few interesting features; numeric identifiers are searched in all
radixes:

	lid 235

0353           sys/src/cmd/dd.c sys/src/cmd/troff/hytab.c
0x00EB         sys/src/cmd/tcs/tcs.c
0xEB           sys/src/boot/pc/x16.h sys/src/9/boot/key.c

since the database contains proper identifiers, lid regular expressions
apply not to lines but to identifiers:

	lid '^xx'

xxxincoff      sys/src/cmd/troff/n3.c
xxxvers        sys/src/ape/cmd/make/ident.c
xxyy           sys/src/cmd/gs/src/gspaint.c

output is path adjusted relative to the id database:

	lid 'xx$'

errxx          ../ape/cmd/expr/expr.y

and so on.

id tools had the idea of having scanners for different languages, but
only C, assembler and text scanners were implemented.

oz
---
www.cs.yorku.ca/~oz      | don't count your chickens in glass houses
york u. computer science | until the cows come home. -- david vestal