clojure.tools.reader — org.clojure/tools.reader 1.5.0

A clojure reader in clojure

*alias-map* clj

Map from ns alias to ns, if non-nil, it will be used to resolve read-time ns aliases instead of (ns-aliases ns).

Defaults to nil

*data-readers* clj

Map from reader tag symbols to data reader Vars. Reader tags without namespace qualifiers are reserved for Clojure. Default reader tags are defined in clojure.tools.reader/default-data-readers and may be overridden by binding this Var.

*default-data-reader-fn* clj

When no data reader is found for a tag and default-data-reader-fn is non-nil, it will be called with two arguments, the tag and the value. If default-data-reader-fn is nil (the default value), an exception will be thrown for the unknown tag.

*read-delim* clj

*read-eval* clj

Defaults to true.

WARNING This setting implies that the full power of the reader is in play, including syntax that can cause code to execute. It should never be used with untrusted sources. See also: clojure.tools.reader.edn/read.

When set to logical false in the thread-local binding, the eval reader (#=) and record/type literal syntax are disabled in read/load. Example (will fail): (binding [read-eval false] (read-string "#=(* 2 21)"))

When set to :unknown all reads will fail in contexts where read-eval has not been explicitly bound to either true or false. This setting can be a useful diagnostic tool to ensure that all of your reads occur in considered contexts.

*suppress-read* clj

default-data-readers clj

Default map of data reader functions provided by Clojure. May be overridden by binding data-readers

map-func clj

(map-func coll)

Decide which map type to use, array-map if less than 16 elements

read clj

(read)

(read reader)

(read opts reader)

(read reader eof-error? eof-value)

Reads the first object from an IPushbackReader or a java.io.PushbackReader. Returns the object read. If EOF, throws if eof-error? is true. Otherwise returns sentinel. If no stream is provided, in will be used.

Opts is a persistent map with valid keys: :read-cond - :allow to process reader conditionals, or :preserve to keep all branches :features - persistent set of feature keywords for reader conditionals :eof - on eof, return value unless :eofthrow, then throw. if not specified, will throw

WARNING Note that read can execute code (controlled by read-eval), and as such should be used only with trusted sources.

To read data structures only, use clojure.tools.reader.edn/read

Note that the function signature of clojure.tools.reader/read and clojure.tools.reader.edn/read is not the same for eof-handling

read+string clj

(read+string)

(read+string stream)

(read+string opts stream)

(read+string stream eof-error? eof-value)

Like read, and taking the same args. reader must be a SourceLoggingPushbackReader. Returns a vector containing the object read and the (whitespace-trimmed) string read.

read-regex clj

(read-regex rdr ch opts pending-forms)

read-string clj

(read-string s)

(read-string opts s)

Reads one object from the string s. Returns nil when s is nil or empty.

WARNING Note that read-string can execute code (controlled by read-eval), and as such should be used only with trusted sources.

To read data structures only, use clojure.tools.reader.edn/read-string

Note that the function signature of clojure.tools.reader/read-string and clojure.tools.reader.edn/read-string is not the same for eof-handling

read-symbol clj

resolve-symbol clj

(resolve-symbol s)

Resolve a symbol s into its fully qualified namespace version

syntax-quote clj macro

(syntax-quote form)

Macro equivalent to the syntax-quote reader macro (`).