| AUTH | Constants for identifying Authentication Schemes |
| base64 | Encode/Decode base64 content |
| basicHeaderGatherer | Functions for processing the response header of a libcurl... |
| basicTextGatherer | Cumulate text across callbacks (from an HTTP response) |
| binaryBuffer | Create internal C-level data structure for collecting binary... |
| CFILE | Create a C-level handle for a file |
| chunkToLineReader | Utility that collects data from the HTTP reply into lines and... |
| clone | Clone/duplicate an object |
| complete | Complete an asynchronous HTTP request |
| curlError | Raise a warning or error about a CURL problem |
| curlEscape | Handle characters in URL that need to be escaped |
| CurlFeatureBits | Constants for libcurl |
| curlGlobalInit | Start and stop the Curl library |
| CURLHandle-class | Class "CURLHandle" for synchronous HTTP requests |
| curlOptions | Constructor and accessors for CURLOptions objects |
| curlPerform | Perform the HTTP query |
| curlSetOpt | Set values for the CURL options |
| curlVersion | Information describing the Curl library |
| dynCurlReader | Dynamically determine content-type of body from HTTP header... |
| enums | Classes and coercion methods for enumerations in libcurl |
| fileUpload | Specify information about a file to upload in an HTTP request |
| findHTTPHeaderEncoding | Find the encoding of the HTTP response from the HTTP header |
| ftpUpload | Upload content via FTP |
| getBinaryURL | Download binary content |
| getBitIndicators | Operate on bit fields |
| getCurlErrorClassNames | Retrieve names of all curl error classes |
| getCurlHandle | Create libcurl handles |
| getCurlInfo | Access information about a CURL request |
| getFormParams | Extract parameters from a form query string |
| getURIAsynchronous | Download multiple URIs concurrently, with inter-leaved... |
| getURL | Download a URI |
| guessMIMEType | Infer the MIME type from a file name |
| httpPUT | Simple high-level functions for HTTP PUT and DELETE |
| HTTP_VERSION_1_0 | Symbolic constants for specifying HTTP and SSL versions in... |
| isBinaryContent | Determines if content appears to be text or binary |
| merge.list | Method for merging two lists by name |
| mimeTypeExtensions | Mapping from extension to MIME type |
| MultiCURLHandle-class | Class "MultiCURLHandle" for asynchronous, concurrent HTTP... |
| postForm | Submit an HTML form |
| RCurl-internal | Internal functions |
| reset | Generic function for resetting an object |
| scp | Retrieve contents of a file from a remote host via SCP... |
| url.exists | Check if URL exists |
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