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const { filter } = require('lodash')
const TreeSitter = require('web-tree-sitter')
const keymapText = `
/*
* Copyright (c) 2020 The ZMK Contributors
*
* SPDX-License-Identifier: MIT
*/
#include <behaviors.dtsi>
#include <dt-bindings/zmk/keys.h>
#include <dt-bindings/zmk/outputs.h>
#include <dt-bindings/zmk/bt.h>
#define DEF 0
#define LWR 1
#define RSE 2
#define ADJ 3
< { quick_tap_ms = <200>; };
&mt { quick_tap_ms = <200>; };
/ {
combos {
compatible = "zmk,combos";
combo_btclr {
timeout-ms = <TIMEOUT>;
key-positions = <1 6>;
bindings = <&bt BT_CLR>;
};
combo_reset {
timeout-ms = <TIMEOUT>;
key-positions = <1 3>;
bindings = <&reset>;
};
};
sensors {
compatible = "zmk,keymap-sensors";
sensors = <&encoder_1 &encoder_2>;
};
keymap {
compatible = "zmk,keymap";
default_layer {
label = "foo";
bindings = <&kp TAB &kp Q &kp W &kp E &kp R &kp T>;
};
layer_fps {
bindings = <&trans &trans &kp Q &kp W &kp E &kp R>;
sensor-bindings = <&inc_dec_kp C_VOL_UP C_VOL_DN &inc_dec_kp PG_UP PG_DN>;
};
layer_numpad {
bindings = <&trans &trans &kp GRAVE &kp MINUS &kp EQUAL &trans>;
};
};
};
`
function findNodeProperty(node, property) {
return node.children.find(node => (
node.type === 'property' &&
node.children[0].text === property
))
}
function findChildrenByIdentifier(node, nameOrMatch) {
const match = typeof nameOrMatch === 'string'
? text => text === nameOrMatch
: nameOrMatch
return node.namedChildren.filter(node => (
node.type === 'node' &&
node.children.find(sub => (
sub.type === 'identifier' &&
match(sub.text)
))
))
}
function findChildByIdentifier(node, nameOrMatch) {
return findChildrenByIdentifier(node, nameOrMatch)[0]
}
function parseLayer(node) {
const identifier = node.children[0].text
const labelNode = node.children.find(node => node.type === 'property' && node.children[0].text === 'label')
const bindingsNode = findNodeProperty(node, 'bindings')
const sensorBindingsNode = findNodeProperty(node, 'sensor-bindings')
function parseBindings(node) {
return node.children[2].children.slice(1, -1)
.map(node => node.text)
.reduce((bindings, node) => {
if (node.startsWith('&')) {
bindings.push([node])
} else {
const last = bindings[bindings.length - 1]
last.push(node)
}
return bindings
}, [])
.map(binding => binding.join(' '))
}
return Object.assign(
{ identifier },
labelNode && { label: labelNode.children[2].text.slice(1, -1) },
bindingsNode && {
bindings: parseBindings(bindingsNode)
},
sensorBindingsNode && {
sensorBindings: parseBindings(sensorBindingsNode)
}
)
}
function listNodes(nodes, opts = {}) {
const { stripNewlines = true, limit = 50 } = opts
for (let node of nodes) {
value = node.text
if (stripNewlines) value = value.replace(/\n/g, '')
if (limit) value = value.slice(0, limit)
console.log(node.id, `[${node.type}]`, '->', value)
}
}
async function main() {
await TreeSitter.init()
const parser = new TreeSitter()
const deviceTree = await TreeSitter.Language.load('./tree-sitter-devicetree.wasm')
parser.setLanguage(deviceTree)
const tree = parser.parse(keymapText)
const root = findChildByIdentifier(tree.rootNode, '/')
const keymap = findChildByIdentifier(root, 'keymap')
const layers = keymap.namedChildren
.filter(node => node.type === 'node')
.map(layer => parseLayer(layer))
const includes = filter(tree.rootNode.children, { type: 'preproc_include' })
const behaviourIncludes = includes.filter(node => node.children[1].text.startsWith('<dt-bindings'))
listNodes(behaviourIncludes)
console.log(layers)
}
main()
|
