问题
I'm working on a project where the source is organised in the following directory structe:
./source/include
./source/include/analysis
./source/include/tools
./source/include/utils
./source/include/utils/stream
./source/include/utils/string
[...]
./source/src
./source/src/analysis
./source/src/tools
./source/src/utils
./source/src/utils/stream
./source/src/utils/string
[...]
Where each subdirectory of ./source/include/ (including ./source/include/) contains header files. Similarly every subdir of ./source/src/ (including ./source/src/) contains implementation files.
When using ff-find-other-file on files which reside at the "top-level" (i.e. in ./source/include/ or ./source/src/) everything works fine. However I can't figure out how one can configure ff-search-directories to search deeper up and back into the directory tree.
There's already a question on SO (emacs ff-find-other-file and ff-search-directories isn't recursive) but it does not solve my problem since this works only with a static setup.
An ideal solution would be something like this (pseudo-regexp solution, where DIR_REGEXP matches all possible directory names):
"../\(DIR_REGEXP\)/include/\1/"
"../\(DIR_REGEXP\)/\(DIR_REGEXP\)/include/\1/\2/"
Is there any elisp snippet/package out there which can provide a solution?
回答1:
The commentary is pretty comprehensive, I think:
M-x find-library RET find-file RET
The example given for ff-search-directories is:
;; SEARCHING is carried out in a set of directories specified by the
;; ff-search-directories variable:
;;
;; ("." "../../src" "../include/*" "/usr/local/*/src/*" "$PROJECT/src")
;;
;; This means that the corresponding file will be searched for first in
;; the current directory, then in ../../src, then in one of the directories
;; under ../include, and so on. The star is _not_ a general wildcard
;; character: it just indicates that the subdirectories of this directory
;; must each be searched in turn. Environment variables will be expanded in
;; the ff-search-directories variable.
If that's insufficient, ff-other-file-alist can contain function symbols which can act dynamically to "return a list consisting of the possible names of the corresponding file". See the usage of ff-cc-hh-converter (which is defined in the library as a reference).
来源：https://stackoverflow.com/questions/23660637/smarter-ff-find-other-file