Project

Topics

Namespaces

Public Vars

beowulf.read

This provides the reader required for boostrapping. It’s not a bad reader - it provides feedback on errors found in the input - but it isn’t the real Lisp reader.

Intended deviations from the behaviour of the real Lisp reader are as follows:

  1. It reads the meta-expression language MEXPR in addition to the symbolic expression language SEXPR, which I do not believe the Lisp 1.5 reader ever did;
  2. It treats everything between a double semi-colon and an end of line as a comment, as most modern Lisps do; but I do not believe Lisp 1.5 had this feature.

Both these extensions can be disabled by using the --strict command line switch.

gsp

(gsp s)

Shortcut macro - the internals of read; or, if you like, read-string. Argument s should be a string representation of a valid Lisp expression.

view source

number-lines

(number-lines s)(number-lines s e)

TODO: write docs

view source

READ

(READ)(READ input)

An implementation of a Lisp reader sufficient for bootstrapping; not necessarily the final Lisp reader. input should be either a string representation of a LISP expression, or else an input stream. A single form will be read.

view source

read-from-console

(read-from-console)

Attempt to read a complete lisp expression from the console. NOTE that this will only really work for S-Expressions, not M-Expressions.

view source

strip-line-comments

(strip-line-comments s)

Strip blank lines and comment lines from this string s, expected to be Lisp source.

view source