The SML/NJ Library is a collection of libraries that are distributed with SML/NJ. Due to differences between SML/NJ and MLton, these libraries will not work out-of-the box with MLton.
As of 20200718, MLton includes a port of the SML/NJ Library synchronized with SML/NJ version 110.98.
Usage
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You can import a sub-library of the SML/NJ Library into an MLB file with:
MLB file Description $(SML_LIB)/smlnj-lib/Util/smlnj-lib.mlb
Various utility modules, included collections, simple formating, …
$(SML_LIB)/smlnj-lib/Controls/controls-lib.mlb
A library for managing control flags in an application.
$(SML_LIB)/smlnj-lib/HashCons/hash-cons-lib.mlb
Support for implementing hash-consed data structures.
$(SML_LIB)/smlnj-lib/HTML/html-lib.mlb
HTML 3.2 parsing and pretty-printing library.
$(SML_LIB)/smlnj-lib/HTML4/html4-lib.mlb
HTML 4.01 parsing and pretty-printing library.
$(SML_LIB)/smlnj-lib/INet/inet-lib.mlb
Networking utilities; supported on both Unix and Windows systems.
$(SML_LIB)/smlnj-lib/JSON/json-lib.mlb
JavaScript Object Notation (JSON) reading and writing library.
$(SML_LIB)/smlnj-lib/PP/pp-lib.mlb
Pretty-printing library.
$(SML_LIB)/smlnj-lib/Reactive/reactive-lib.mlb
Reactive scripting library.
$(SML_LIB)/smlnj-lib/RegExp/regexp-lib.mlb
Regular expression library.
$(SML_LIB)/smlnj-lib/SExp/sexp-lib.mlb
S-expression library.
$(SML_LIB)/smlnj-lib/Unix/unix-lib.mlb
Utilities for Unix-based operating systems.
$(SML_LIB)/smlnj-lib/UUID/uuid-lib.mlb
Utilities for Unix-based operating systems.
$(SML_LIB)/smlnj-lib/XML/xml-lib.mlb
XML library.
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If you are porting a project from SML/NJ’s CompilationManager to MLton’s ML Basis system using cm2mlb, note that the following maps are included by default:
# SMLNJ Library $SMLNJ-LIB $(SML_LIB)/smlnj-lib $smlnj-lib.cm $(SML_LIB)/smlnj-lib/Util $controls-lib.cm $(SML_LIB)/smlnj-lib/Controls $hash-cons-lib.cm $(SML_LIB)/smlnj-lib/HashCons $html-lib.cm $(SML_LIB)/smlnj-lib/HTML $html4-lib.cm $(SML_LIB)/smlnj-lib/HTML4 $inet-lib.cm $(SML_LIB)/smlnj-lib/INet $json-lib.cm $(SML_LIB)/smlnj-lib/JSON $pp-lib.cm $(SML_LIB)/smlnj-lib/PP $reactive-lib.cm $(SML_LIB)/smlnj-lib/Reactive $regexp-lib.cm $(SML_LIB)/smlnj-lib/RegExp $sexp-lib.cm $(SML_LIB)/smlnj-lib/SExp $unix-lib.cm $(SML_LIB)/smlnj-lib/Unix $xml-lib.cm $(SML_LIB)/smlnj-lib/XML
This will automatically convert a $/smlnj-lib.cm import in an input .cm file into a $(SML_LIB)/smlnj-lib/Util/smlnj-lib.mlb import in the output .mlb file.
Details
The following changes were made to the SML/NJ Library, in addition to deriving the .mlb files from the .cm files:
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HTML4/pp-init.sml (added): Implements structure PrettyPrint using the SML/NJ PP Library. This implementation is taken from the SML/NJ compiler source, since the SML/NJ HTML4 Library used the structure PrettyPrint provided by the SML/NJ compiler itself.
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PP/mono-buffer (added): Implements signature MONO_BUFFER and structure CharBuffer: MONO_BUFFER.
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SExp/sexp.sml (modified): Fixed non-exhaustive match warning (and latent bug) in compare function.
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Util/dynamic-array.sml (modified): Rewrote use of Array.fromVector.
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Util/base64.sml (modified): Rewrote use of Unsafe.CharVector.create and Unsafe.CharVector.update; MLton assumes that vectors are immutable.
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Util/engine.mlton.sml (added, not exported): Implements structure Engine, providing time-limited, resumable computations using MLtonThread, MLtonSignal, and MLtonItimer.
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Util/graph-scc-fn.sml (modified): Rewrote use of where structure specification.
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Util/redblack-map-fn.sml (modified): Rewrote use of where structure specification.
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Util/redblack-set-fn.sml (modified): Rewrote use of where structure specification.
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Util/time-limit.mlb (added): Exports structure TimeLimit, which is not exported by smlnj-lib.mlb. Since MLton is very conservative in the presence of threads and signals, program performance may be adversely affected by unnecessarily including structure TimeLimit.
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Util/time-limit.mlton.sml (added): Implements structure TimeLimit using structure Engine. The SML/NJ implementation of structure TimeLimit uses SML/NJ’s first-class continuations, signals, and interval timer.
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Util/utf8.sml (modified): Rewrote use of String.implodeRev.