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| -rw-r--r-- | TODO | 28 |
1 files changed, 28 insertions, 0 deletions
@@ -347,3 +347,31 @@ Eric Sandeen pointed out the blktrace tool which is a better way of capturing traces than using patched qemu (see contrib/visualize-alignment). We would still use the same visualization tools in conjunction with blktrace traces. + +guestfish parsing +----------------- + +At the moment guestfish uses an ad hoc parser which has many +shortcomings. We should change to using a lex/yacc-based scanner and +parser (there are better parsers out there, but yacc is sufficient and +very widely available). + +The scanner must deal with the case of parsing a whole command string, +eg. for a command that the user types in: + + ><fs> add-drive-opts "/tmp/foo" readonly:true + +and also with parsing single words from the command line: + + guestfish add-drive-opts /tmp/foo readonly:true + +Note the quotes are for scanning and don't indicate types. + +We should also allow variables and expressions as part of this new +parsing code, eg: + + set roots inspect-os + set product inspect-get-product-name %{roots[0]} + +% is better than $ because of shell escaping and confusion with shell +variables. |