Dear, An example describes better than words. :-)
guix package --show=tuxpaint And one can read the terms `software` in the synopsis and `tools` in the description. However, `guix search software tools` does not output the package `tuxpaint`. guix search software tools | recsel -C -P name | sort >From the function `relevance` in `guix/ui.scm`, if I understand well, it seems expected. Each field deals with the regexp and the terms `software` and `tools` does not appear both in only one field. Is this behaviour expected? To be more concrete, the manual says "And now for a more elaborate example. The following command searches for cryptographic libraries, filters out Haskell, Perl, Python, and Ruby libraries, and prints the name and synopsis of the matching packages: $ guix search crypto library | \ recsel -e '! (name ~ "^(ghc|perl|python|ruby)")' -p name,synopsis " and the cryptographic library `libb2` is not listed by the previous search command line because the terms `crypto` and `library` does not appear both in the same field. guix package --show=libb2 name: libb2 version: 0.98.1 outputs: out systems: x86_64-linux i686-linux armhf-linux aarch64-linux mips64el-linux dependencies: location: gnu/packages/crypto.scm:648:2 homepage: https://blake2.net/ license: Public Domain synopsis: Library implementing the BLAKE2 family of hash functions description: libb2 is a portable implementation of the BLAKE2 family of + cryptographic hash functions. It includes optimised implementations for IA-32 + and AMD64 processors, and an interface layer that automatically selects the + best implementation for the processor it is run on. + + "BLAKE2" (RFC 7693) is a family of high-speed cryptographic hash functions + that are faster than MD5, SHA-1, SHA-2, and SHA-3, yet are at least as secure + as the latest standard, SHA-3. It is an improved version of the SHA-3 + finalist BLAKE. All the best, simon