pullParseSource

Parses an SDL document using StAX/Pull-style. Returns an InputRange with element type ParserEvent.

The pullParseFile version reads a file and parses it, while pullParseSource parses a string passed in. The optional filename parameter in pullParseSource can be included so that the SDLang document's filename (if any) can be displayed with any syntax error messages.

Note: The old FileStartEvent and FileEndEvent events were deemed unnessecary and removed as of SDLang-D v0.10.0.

Note: Previously, in SDLang-D v0.9.x, ParserEvent was a std.variant.Algebraic. As of SDLang-D v0.10.0, it is now a TaggedAlgebraic, so usage has changed somewhat.

auto

pullParseSource

(

string source

string filename = null

)

Examples

parent 12 attr="q" {
	childA 34
	childB 56
}
lastTag

The ParserEvent sequence emitted for that SDL document would be as follows (indented for readability):

TagStartEvent (parent)
	ValueEvent (12)
	AttributeEvent (attr, "q")
	TagStartEvent (childA)
		ValueEvent (34)
	TagEndEvent
	TagStartEvent (childB)
		ValueEvent (56)
	TagEndEvent
TagEndEvent
TagStartEvent (lastTag)
TagEndEvent

t
{
	// stuff.sdl
	immutable stuffSdl = `
		name "sdlang-d"
		description "An SDL (Simple Declarative Language) library for D."
		homepage "http://github.com/Abscissa/SDLang-D"

		configuration "library" {
			targetType "library"
		}
	`;

	import std.stdio;

	foreach(event; pullParseSource(stuffSdl))
	final switch(event.kind)
	{
	case ParserEvent.Kind.tagStart:
		auto e = cast(TagStartEvent) event;
		writeln("TagStartEvent: ", e.namespace, ":", e.name, " @ ", e.location);
		break;

	case ParserEvent.Kind.tagEnd:
		auto e = cast(TagEndEvent) event;
		writeln("TagEndEvent");
		break;

	case ParserEvent.Kind.value:
		auto e = cast(ValueEvent) event;
		writeln("ValueEvent: ", e.value);
		break;

	case ParserEvent.Kind.attribute:
		auto e = cast(AttributeEvent) event;
		writeln("AttributeEvent: ", e.namespace, ":", e.name, "=", e.value);
		break;

pullParseSource

Examples

Meta

Source