pleshevskiy/tree-sitter-d2
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grammar: add support of near attribute

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grammar: add more utils

Closes #2
This commit is contained in:
Dmitriy Pleshevskiy 2023-06-16 06:37:19 +03:00
parent d113cea211
commit 8aac147e8e
Signed by: pleshevskiy
GPG key ID: 79C4487B44403985
6 changed files with 233 additions and 98 deletions
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7
examples/chess.d2
View file

@ -1,7 +1,12 @@
# Actors
hans: Hans Niemann
defendants: {
defendants: |md
# Defendants
hello world
| {
shape: text
mc: Magnus Carlsen
playmagnus: Play Magnus Group
chesscom: Chess.com

90
grammar.js
View file

@ -1,15 +1,3 @@
// mkWrapCont :: string -> string -> ($ -> Rule) -> $ -> Rule
const mkWrapCont = (start, end) => (getRule) => ($) =>
seq(
start,
repeat(choice($._eol, seq(getRule($), $._end))),
optional(seq(getRule($), optional($._end))),
end
);
const mkBlock = mkWrapCont("{", "}");
const mkList = mkWrapCont("[", "]");
const PREC = {
COMMENT: -2,
EOL: -1,
@ -25,6 +13,28 @@ const PREC = {
ATTRIBUTE_KEY: 0,
};
// mkWrapCont :: string -> string -> ($ -> Rule) -> $ -> Rule
const mkWrapCont = (start, end) => (onDefinition) => ($) =>
seq(
start,
repeat(choice($._eol, seq(onDefinition($), $._end))),
optional(seq(onDefinition($), optional($._end))),
end
);
const mkBlock = mkWrapCont("{", "}");
const mkList = mkWrapCont("[", "]");
// mkAlias :: ($ -> Rule) -> ($ -> Rule) -> $ -> Rule
const mkAlias = (onAlias) => (onValue) => ($) => alias(onValue($), onAlias($));
const attrKeyAlias = mkAlias(($) => $.attr_key);
const attrAlias = mkAlias(($) => $.attribute);
// mkAttrCont :: ($ -> Rule) -> ($ -> Rule) -> $ -> Rule
const mkAttrCont = (onValue) => (onKey) => ($) =>
seq(onKey($), $._colon, onValue($));
const mkBaseAttr = (onKey) =>
mkAttrCont(($) => $.attr_value)(attrKeyAlias(onKey));
module.exports = grammar({
name: "d2",
@ -49,6 +59,7 @@ module.exports = grammar({
[$._classes_block],
[$._classes_item_block],
[$.class_list],
[$._text_block_attrs],
],
rules: {
@ -126,10 +137,8 @@ module.exports = grammar({
_classes_item_block: mkBlock(($) => $._classes_item_attribute),
_classes_item_attribute: ($) =>
choice(
alias($._base_shape_attribute, $.attribute),
alias($._style_attribute, $.attribute)
_classes_item_attribute: attrAlias(($) =>
choice($._base_shape_attribute, $._style_attribute)
),
// containers
@ -164,7 +173,16 @@ module.exports = grammar({
optional(
choice(
seq($.dot, $._shape_attribute),
seq($._colon, choice($.label, $.text_block))
seq(
$._colon,
choice(
$.label,
seq(
$.text_block,
optional(alias($._text_block_attrs, $.block))
)
)
)
)
)
)
@ -194,12 +212,13 @@ module.exports = grammar({
alias($._text_block_end, "|")
),
_text_block_attrs: mkBlock(attrAlias(($) => $._text_shape_attribute)),
language: ($) => /\w+/,
// attributes
_root_attribute: ($) =>
seq(alias($._root_attr_key, $.attr_key), $._colon, $.attr_value),
_root_attribute: mkBaseAttr(($) => $._root_attr_key),
_root_attr_key: ($) =>
choice(
@ -220,21 +239,19 @@ module.exports = grammar({
)
),
_shape_attribute: ($) =>
alias(
choice($._class_attribute, $._base_shape_attribute, $._style_attribute),
$.attribute
_shape_attribute: attrAlias(($) =>
choice($._class_attribute, $._base_shape_attribute, $._style_attribute)
),
_class_attribute: ($) =>
seq($.keyword_class, $._colon, choice($.class_list, $._class_name)),
_class_attribute: mkAttrCont(($) => choice($.class_list, $._class_name))(
($) => $.keyword_class
),
class_list: mkList(($) => $._class_name),
_class_name: ($) => alias($.shape_key, $.class_name),
_base_shape_attribute: ($) =>
seq(alias($._shape_attr_key, $.attr_key), $._colon, $.attr_value),
_base_shape_attribute: mkBaseAttr(($) => $._shape_attr_key),
_shape_attr_key: ($) =>
prec(
@ -251,6 +268,7 @@ module.exports = grammar({
"icon",
"width",
"height",
$._text_attr_key,
$._grid_attr_key
)
),
@ -267,15 +285,9 @@ module.exports = grammar({
)
),
_style_attribute_block: mkBlock(($) =>
alias($._inner_style_attribute, $.attribute)
),
_style_attribute_block: mkBlock(attrAlias(($) => $._inner_style_attribute)),
_inner_style_attribute: ($) =>
prec(
PREC.ATTRIBUTE,
seq(alias($._style_attr_key, $.attr_key), $._colon, $.attr_value)
),
_inner_style_attribute: mkBaseAttr(($) => $._style_attr_key),
_grid_attr_key: ($) =>
choice(
@ -311,12 +323,12 @@ module.exports = grammar({
"text-transform"
),
_text_shape_attribute: mkBaseAttr(($) => $._text_attr_key),
_text_attr_key: ($) => "near",
_connection_attribute: ($) =>
choice(
alias($._connection_arrowhead_attribute, $.attribute),
alias($._style_attribute, $.attribute)
_connection_attribute: attrAlias(($) =>
choice($._connection_arrowhead_attribute, $._style_attribute)
),
_connection_arrowhead_attribute: ($) =>

160
src/grammar.json
View file

@ -566,27 +566,22 @@
]
},
"_classes_item_attribute": {
"type": "ALIAS",
"content": {
"type": "CHOICE",
"members": [
{
"type": "ALIAS",
"content": {
"type": "SYMBOL",
"name": "_base_shape_attribute"
},
"named": true,
"value": "attribute"
},
{
"type": "ALIAS",
"content": {
"type": "SYMBOL",
"name": "_style_attribute"
}
]
},
"named": true,
"value": "attribute"
}
]
},
"container": {
"type": "PREC",
@ -815,9 +810,31 @@
"type": "SYMBOL",
"name": "label"
},
{
"type": "SEQ",
"members": [
{
"type": "SYMBOL",
"name": "text_block"
},
{
"type": "CHOICE",
"members": [
{
"type": "ALIAS",
"content": {
"type": "SYMBOL",
"name": "_text_block_attrs"
},
"named": true,
"value": "block"
},
{
"type": "BLANK"
}
]
}
]
}
]
}
@ -959,6 +976,83 @@
}
]
},
"_text_block_attrs": {
"type": "SEQ",
"members": [
{
"type": "STRING",
"value": "{"
},
{
"type": "REPEAT",
"content": {
"type": "CHOICE",
"members": [
{
"type": "SYMBOL",
"name": "_eol"
},
{
"type": "SEQ",
"members": [
{
"type": "ALIAS",
"content": {
"type": "SYMBOL",
"name": "_text_shape_attribute"
},
"named": true,
"value": "attribute"
},
{
"type": "SYMBOL",
"name": "_end"
}
]
}
]
}
},
{
"type": "CHOICE",
"members": [
{
"type": "SEQ",
"members": [
{
"type": "ALIAS",
"content": {
"type": "SYMBOL",
"name": "_text_shape_attribute"
},
"named": true,
"value": "attribute"
},
{
"type": "CHOICE",
"members": [
{
"type": "SYMBOL",
"name": "_end"
},
{
"type": "BLANK"
}
]
}
]
},
{
"type": "BLANK"
}
]
},
{
"type": "STRING",
"value": "}"
}
]
},
"language": {
"type": "PATTERN",
"value": "\\w+"
@ -1224,6 +1318,10 @@
"type": "STRING",
"value": "height"
},
{
"type": "SYMBOL",
"name": "_text_attr_key"
},
{
"type": "SYMBOL",
"name": "_grid_attr_key"
@ -1363,9 +1461,6 @@
]
},
"_inner_style_attribute": {
"type": "PREC",
"value": 0,
"content": {
"type": "SEQ",
"members": [
{
@ -1386,7 +1481,6 @@
"name": "attr_value"
}
]
}
},
"_grid_attr_key": {
"type": "CHOICE",
@ -1507,32 +1601,49 @@
}
]
},
"_text_attr_key": {
"type": "STRING",
"value": "near"
},
"_connection_attribute": {
"type": "CHOICE",
"_text_shape_attribute": {
"type": "SEQ",
"members": [
{
"type": "ALIAS",
"content": {
"type": "SYMBOL",
"name": "_connection_arrowhead_attribute"
"name": "_text_attr_key"
},
"named": true,
"value": "attribute"
"value": "attr_key"
},
{
"type": "SYMBOL",
"name": "_colon"
},
{
"type": "SYMBOL",
"name": "attr_value"
}
]
},
"_text_attr_key": {
"type": "STRING",
"value": "near"
},
"_connection_attribute": {
"type": "ALIAS",
"content": {
"type": "CHOICE",
"members": [
{
"type": "SYMBOL",
"name": "_connection_arrowhead_attribute"
},
{
"type": "SYMBOL",
"name": "_style_attribute"
}
]
},
"named": true,
"value": "attribute"
}
]
},
"_connection_arrowhead_attribute": {
"type": "SEQ",
@ -2055,6 +2166,9 @@
],
[
"class_list"
],
[
"_text_block_attrs"
]
],
"precedences": [],

4
src/node-types.json
View file

@ -357,6 +357,10 @@
"type": "attribute",
"named": true
},
{
"type": "block",
"named": true
},
{
"type": "dot",
"named": true

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src/parser.c
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tree-sitter-d2.wasm
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