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ex_spirit

0.2.1
0.4.0 0.3.5 0.3.4 0.3.3 0.3.2 0.3.1 0.3.0 0.2.7 0.2.6 0.2.5 0.2.4 0.2.3 0.2.2 0.2.1 0.2.0 0.1.3 0.1.2 0.1.1 0.1.0

Spirit-style PEG-like parsing library for Elixir.

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  @@ -11,4 +11,4 @@
11 11 {<<"maintainers">>,[<<"OvermindDL1">>]}.
12 12 {<<"name">>,<<"ex_spirit">>}.
13 13 {<<"requirements">>,[]}.
14 - {<<"version">>,<<"0.2.0">>}.
14 + {<<"version">>,<<"0.2.1">>}.
  @@ -528,6 +528,24 @@ defmodule ExSpirit.Parser do
528 528
529 529 ```
530 530
531 + ## map_context_around
532 +
533 + Runs a function and parser with the both the context before and after the
534 + function call.
535 +
536 + ### Examples
537 +
538 + ```elixir
539 +
540 + iex> import ExSpirit.Tests.Parser
541 + iex> fun = fn {pre, post} -> %{post|result: {pre, post}} end
542 + iex> context = parse("42", map_context_around(fun.(), uint()))
543 + iex> {pre, post} = context.result
544 + iex> {context.error, pre.column, post.column, context.rest}
545 + {nil, 1, 3, ""}
546 +
547 + ```
548 +
531 549 ## skip
532 550
533 551 Runs the skipper now
  @@ -1060,13 +1078,17 @@ defmodule ExSpirit.Parser do
1060 1078 end
1061 1079
1062 1080
1063 - defmacro map_context_around(context_ast, parser_ast, mapper_ast) do
1081 + defmacro map_context_around(context_ast, mapper_ast, parser_ast) do
1064 1082 quote location: :keep do
1065 1083 context = unquote(context_ast)
1066 1084 if !valid_context?(context) do
1067 1085 context
1068 1086 else
1069 - context |> unquote(mapper_ast)
1087 + case context |> unquote(parser_ast) do
1088 + %{error: nil} = new_context ->
1089 + {context, new_context} |> unquote(mapper_ast)
1090 + bad_context -> bad_context
1091 + end
1070 1092 end
1071 1093 end
1072 1094 end
  @@ -1,44 +1,44 @@
1 - defmodule ExSpirit.Mixfile do
2 - use Mix.Project
3 -
4 - def project do
5 - [app: :ex_spirit,
6 - version: "0.2.0",
7 - elixir: "~> 1.4",
8 - description: description(),
9 - package: package(),
10 - docs: [
11 - #logo: "path/to/logo.png",
12 - extras: ["README.md"],
13 - main: "readme",
14 - ],
15 - build_embedded: Mix.env == :prod,
16 - start_permanent: Mix.env == :prod,
17 - deps: deps()]
18 - end
19 -
20 - def application do
21 - [extra_applications: []]
22 - end
23 -
24 - def description do
25 - """
26 - Spirit-style PEG-like parsing library for Elixir.
27 - """
28 - end
29 -
30 - def package do
31 - [
32 - licenses: ["MIT"],
33 - name: :ex_spirit,
34 - maintainers: ["OvermindDL1"],
35 - links: %{"Github" => "https://github.com/OvermindDL1/ex_spirit"}
36 - ]
37 - end
38 -
39 - defp deps do
40 - [
41 - {:ex_doc, "~> 0.14.5", only: [:dev]},
42 - ]
43 - end
44 - end
1 + defmodule ExSpirit.Mixfile do
2 + use Mix.Project
3 +
4 + def project do
5 + [app: :ex_spirit,
6 + version: "0.2.1",
7 + elixir: "~> 1.4",
8 + description: description(),
9 + package: package(),
10 + docs: [
11 + #logo: "path/to/logo.png",
12 + extras: ["README.md"],
13 + main: "readme",
14 + ],
15 + build_embedded: Mix.env == :prod,
16 + start_permanent: Mix.env == :prod,
17 + deps: deps()]
18 + end
19 +
20 + def application do
21 + [extra_applications: []]
22 + end
23 +
24 + def description do
25 + """
26 + Spirit-style PEG-like parsing library for Elixir.
27 + """
28 + end
29 +
30 + def package do
31 + [
32 + licenses: ["MIT"],
33 + name: :ex_spirit,
34 + maintainers: ["OvermindDL1"],
35 + links: %{"Github" => "https://github.com/OvermindDL1/ex_spirit"}
36 + ]
37 + end
38 +
39 + defp deps do
40 + [
41 + {:ex_doc, "~> 0.14.5", only: [:dev]},
42 + ]
43 + end
44 + end