140 lines
3.0 KiB
JavaScript
140 lines
3.0 KiB
JavaScript
const spaces = repeat(" ");
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module.exports = grammar({
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name: "d2",
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extras: ($) => [],
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word: ($) => $._word,
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conflicts: ($) => [[$.identifier], [$.arrow]],
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rules: {
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source_file: ($) => repeat($._definition),
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_definition: ($) =>
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choice($._end, $._root_attribute, $.connection, $.shape),
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connection: ($) =>
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seq(
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$._identifier,
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repeat1(seq($._arrow, $._identifier)),
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optional(
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choice(seq($.dot, $._connection_attribute), seq($._colon, $.label))
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),
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$._end
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),
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shape: ($) =>
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seq(
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$._identifier,
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repeat(seq($.dot, $._identifier)),
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optional(
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choice(seq($.dot, $._shape_attribute), seq($._colon, $.label))
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),
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$._end
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),
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label: ($) => choice($.string, $._unquoted_string),
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attr_value: ($) => choice($.string, $._unquoted_string),
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_root_attribute: ($) =>
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seq(alias($._root_attr_key, $.attr_key), $._colon, $.attr_value, $._end),
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_root_attr_key: ($) => "direction",
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_style_attribute: ($) =>
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seq(
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alias("style", $.attr_key),
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$.dot,
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alias($._style_attr_key, $.attr_key),
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$._colon,
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$.attr_value
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),
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_shape_attribute: ($) =>
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choice(
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seq(alias($._shape_attr_key, $.attr_key), $._colon, $.attr_value),
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$._style_attribute
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),
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_connection_attribute: ($) =>
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seq(alias($._connection_attr_key, $.attr_key), $._colon, $.attr_value),
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_shape_attr_key: ($) =>
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choice(
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"shape",
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"label",
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// sql
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"constraint",
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// image
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"icon",
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"width",
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"height"
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),
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_style_attr_key: ($) =>
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choice(
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"opacity",
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"fill",
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"stroke",
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"stroke-width",
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"stroke-dash",
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"border-radius",
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"font-color",
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"shadow",
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"multiple",
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"animated",
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"3d",
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"link"
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),
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_text_attr_key: ($) => "near",
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_connection_attr_key: ($) => choice("source-arrowhead", "target-arrowhead"),
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_identifier: ($) => seq(spaces, $.identifier),
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identifier: ($) =>
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seq(
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optional($._dash),
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choice(
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$._word,
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repeat1(seq($._word, choice(spaces, $._dash), $._word))
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),
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optional($._dash)
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),
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_colon: ($) => seq(spaces, ":", spaces),
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_arrow: ($) => seq(spaces, $.arrow),
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arrow: ($) =>
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choice(
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seq("--", repeat($._dash)),
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seq("<-", repeat($._dash)),
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seq("<-", repeat($._dash), ">"),
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seq(repeat($._dash), "->")
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),
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_dash: ($) => token.immediate("-"),
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dot: ($) => token.immediate("."),
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_unquoted_string: ($) => token.immediate(/[^'"`\n;{]+/),
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string: ($) =>
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choice(
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seq("'", repeat(token.immediate(/[^'\n]+/)), "'"),
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seq('"', repeat(token.immediate(/[^"\n]+/)), '"'),
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seq("`", repeat(token.immediate(/[^`\n]+/)), "`")
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),
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_word: ($) => /[\w\d]+/,
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_eof: ($) => choice("\n", "\0"),
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_end: ($) => seq(spaces, choice(";", $._eof)),
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},
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});
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