term_html.pl -- Represent Prolog terms as HTML

This file is primarily designed to support running Prolog applications over the web. It provides a replacement for write_term/2 which renders terms as structured HTML.

 term(@Term, +Options)// is det

Render a Prolog term as a structured HTML tree. Options are passed to write_term/3. In addition, the following options are processed:

format(+Format)

Used for atomic values. Typically this is used to render a single value.

float_format(+Format)

If a float is rendered, it is rendered using format(string(S), Format, [Float])

To be done

- Cyclic terms.

- Attributed terms.

- Portray

- Test with Ulrich's write test set.

- Deal with numbervars and canonical.

 compound(+Compound, +Options)// is det[private]

Process a compound term.

 arg_options(+Options, -OptionsOut) is det[private]

 arg_options(+Options, +Extra, -OptionsOut) is det[private]

Increment depth in Options.

 args(+Arg0, +Arity, +Compound, +Options)//[private]

Emit arguments of a compound term.

 list(+List, +Options)//[private]

Emit a list. The List may have an unbound tail.

 is_op1(+Name, -Type, -Priority, -ArgPriority, +Options) is semidet[private]

True if Name is an operator taking one argument of Type.

 operator_module(-Module, +Options) is det[private]

Find the module for evaluating operators.

 op1(+Type, +Pri, +Term, +ArgPri, +Options)// is det[private]

 op2(+Pri, +Term, +Type, +LeftPri, +RightPri, +Options)// is det[private]

 op_arg(+Term, +Options)// is det[private]

 embrace(+HTML)//[private]

Place parenthesis around HTML with a DOM that allows to easily justify the height of the parenthesis.

 space(@T1, @T2, +C1, +C2, +Options)//[private]

Emit a space if omitting a space between T1 and T2 would cause the two terms to join.

 end_code_type(+Term, +Class, -Code, Options)[private]

True when code is the first/last character code that is emitted by printing Term using Options.

 dict(+Term, +Options)//[private]

 primitive(+Term, -Class) is semidet[private]

True if Term is a primitive term, rendered using the CSS class Class.

 primitive_class(+Class0, +Value, -String, -Class) is det[private]

Fixup the CSS class for lexical variations. Used to find quoted atoms.

 finalize_term(+Term, +Dict)// is det[private]

Handle the full_stop(Bool) and nl(Bool) options.