advanced_search: Advanced CRAN package search

In r-hub/pkgsearch: Search and Query CRAN R Packages

Advanced CRAN package search

Description

See the Elastic documentation for the syntax and features: https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-query-string-query.html

Usage

advanced_search(
  ...,
  json = NULL,
  format = c("short", "long"),
  from = 1,
  size = 10
)

Arguments

...	Search terms. For named terms, the name specifies the field to search for. For unnamed ones, the term is taken as is. The individual terms are combined with the AND operator.
json	A character string that contains the query to send to Elastic. If this is not NULL, then you cannot specify any search terms in ....
format	Default formatting of the results. short only outputs the name and title of the packages, long also prints the author, last version, full description and URLs. Note that this only affects the default printing, and you can still inspect the full results, even if you specify short here.
from	Where to start listing the results, for pagination.
size	The number of results to list.

Value

Search hits.

Examples

# All orphaned packages
advanced_search(Maintainer = "ORPHANED")

# Packages with both Hester and Wickham as authors
advanced_search(Author = "Hester", Author = "Wickham")
advanced_search("Author: Hester AND Author: Wickham")

# Packages with Hester but not Wickham as author
advanced_search(Author = "Hester AND NOT Wickham")

# Packages with Hester as an Author, and Wickham in any field
advanced_search(Author = "Hester", "Wickham")

# Packages with Hester as an Author and Wickham nowhere in the metadata
advanced_search(Author = "Hester", "NOT Wickham")

# Packages for permutation tests and permissive licenses
advanced_search("permutation test AND NOT License: GPL OR GNU")

# Packages that have a certain field
advanced_search("_exists_" = "URL")

# Packages that do not have a certain field:
advanced_search("NOT _exists_: URL")

# The same but as JSON query
query <- '{
"query": {
  "bool": {
    "must_not": {
      "exists": {
        "field": "URL"
      }
    }
  }
}
}'
advanced_search(json = query)

# Regular expressions
advanced_search(Author = "/Joh?nathan/")

# Fuzzy search
advanced_search(Author = "Johnathan~1")

r-hub/pkgsearch documentation built on Sept. 28, 2024, 10:55 p.m.