104 lines
3.1 KiB
Text
104 lines
3.1 KiB
Text
/-
|
|
Copyright (c) 2018 Microsoft Corporation. All rights reserved.
|
|
Released under Apache 2.0 license as described in the file LICENSE.
|
|
Author: Sebastian Ullrich
|
|
|
|
Command parsers
|
|
-/
|
|
prelude
|
|
import init.lean.parser.declaration
|
|
|
|
namespace lean
|
|
namespace parser
|
|
|
|
open combinators monad_parsec
|
|
open parser.has_tokens parser.has_view
|
|
|
|
local postfix `?`:10000 := optional
|
|
local postfix *:10000 := combinators.many
|
|
local postfix +:10000 := combinators.many1
|
|
|
|
set_option class.instance_max_depth 300
|
|
|
|
@[derive parser.has_view parser.has_tokens]
|
|
def command.parser : command_parser :=
|
|
recurse () <?> "command"
|
|
|
|
namespace «command»
|
|
|
|
@[derive parser.has_view parser.has_tokens]
|
|
def open_spec.parser : command_parser :=
|
|
node! open_spec [
|
|
id: ident.parser,
|
|
as: node! open_spec.as ["as", id: ident.parser]?,
|
|
only: node! open_spec.only [try ["(", id: ident.parser], ids: ident.parser*, ")"]?,
|
|
«renaming»: node! open_spec.renaming [try ["(", "renaming"], items: node! open_spec.renaming.item [«from»: ident.parser, "->", to: ident.parser]+, ")"]?,
|
|
«hiding»: node! open_spec.hiding ["(", "hiding", ids: ident.parser+, ")"]?
|
|
]+
|
|
|
|
@[derive parser.has_tokens]
|
|
def open.parser : command_parser :=
|
|
node! «open» ["open", spec: open_spec.parser]
|
|
|
|
@[derive parser.has_tokens]
|
|
def export.parser : command_parser :=
|
|
node! «export» ["export", spec: open_spec.parser]
|
|
|
|
@[derive parser.has_tokens]
|
|
def section.parser : command_parser :=
|
|
node! «section» ["section", name: ident.parser?]
|
|
|
|
@[derive parser.has_tokens]
|
|
def namespace.parser : command_parser :=
|
|
node! «namespace» ["namespace", name: ident.parser]
|
|
|
|
@[derive parser.has_tokens]
|
|
def variable.parser : command_parser :=
|
|
node! «variable» ["variable", binder: term.binder.parser]
|
|
|
|
@[derive parser.has_tokens]
|
|
def variables.parser : command_parser :=
|
|
node! «variables» ["variables", binders: term.bracketed_binder.parser+]
|
|
|
|
@[derive parser.has_tokens]
|
|
def end.parser : command_parser :=
|
|
node! «end» ["end", name: ident.parser?]
|
|
|
|
@[derive parser.has_tokens]
|
|
def universe.parser : command_parser :=
|
|
any_of [
|
|
-- local
|
|
node! universe_variables [try ["universe", "variables"], ids: ident.parser+],
|
|
-- global
|
|
node! «universes» ["universes", ids: ident.parser+],
|
|
node! «universe» ["universe", id: ident.parser]
|
|
]
|
|
|
|
@[derive parser.has_tokens parser.has_view]
|
|
def check.parser : command_parser :=
|
|
node! check ["#check", term: term.parser]
|
|
|
|
@[derive parser.has_tokens parser.has_view]
|
|
def attribute.parser : command_parser :=
|
|
node! «attribute» [
|
|
«local»: (symbol "local ")?,
|
|
"attribute ",
|
|
"[",
|
|
attrs: sep_by1 attr_instance.parser (symbol ", "),
|
|
"] ",
|
|
ids: ident.parser*
|
|
]
|
|
|
|
@[derive has_tokens]
|
|
def builtin_command_parsers : list command_parser := [
|
|
open.parser, section.parser, universe.parser, notation.parser, reserve_notation.parser,
|
|
mixfix.parser, reserve_mixfix.parser, check.parser, declaration.parser, attribute.parser,
|
|
export.parser, namespace.parser, end.parser, variable.parser, variables.parser]
|
|
end «command»
|
|
|
|
def command_parser.run (commands : list command_parser) (p : command_parser)
|
|
: parser_t command_parser_config id syntax :=
|
|
λ cfg, (p.run cfg).run_parsec $ λ _, any_of $ commands.map (λ p, p.run cfg)
|
|
|
|
end parser
|
|
end lean
|