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prevent using .toLowercase() too often #39

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merged 1 commit into from
Feb 18, 2024
Merged

prevent using .toLowercase() too often #39

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33 changes: 25 additions & 8 deletions index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -15,6 +15,20 @@ function indent(size) {
return TAB.repeat(size)
}

/**
* Check if a string contains uppercase characters
* @param {string} str
*/
function is_uppercase(str) {
for (let char of str) {
let code = char.charCodeAt(0)
if (code >= 65 && code <= 90) {
return true
}
}
return false
}

/**
* @param {import('css-tree').CssNode} node
* @param {string} css
Expand Down Expand Up @@ -254,9 +268,11 @@ function print_block(node, css, indent_level) {
* @returns {string} A formatted Atrule
*/
function print_atrule(node, css, indent_level) {
let buffer = indent(indent_level) + '@' + node.name.toLowerCase()
let buffer = indent(indent_level) + '@'
let name = node.name
let prelude = node.prelude
let block = node.block
buffer += is_uppercase(name) ? name.toLowerCase() : name

// @font-face has no prelude
if (prelude !== null) {
Expand Down Expand Up @@ -301,7 +317,7 @@ function print_prelude(node, css) {
function print_declaration(node, css, indent_level) {
let property = node.property

if (!property.startsWith('--') && /[A-Z]/.test(property)) {
if (!property.startsWith('--') && is_uppercase(property)) {
property = property.toLowerCase()
}

Expand Down Expand Up @@ -351,11 +367,12 @@ function print_list(children, css) {
return buffer
}

/**
* @param {import('css-tree').Dimension} node
*/
/** @param {import('css-tree').Dimension} node */
function print_dimension(node) {
return node.value + node.unit.toLowerCase()
let unit = node.unit
let buffer = node.value
buffer += is_uppercase(unit) ? unit.toLowerCase() : unit;
return buffer
}

/**
Expand All @@ -378,7 +395,7 @@ function print_function(node, css) {
let name = node.name
let buffer = name

if (/[A-Z]/.test(name)) {
if (is_uppercase(name)) {
buffer = name.toLowerCase()
}

Expand All @@ -400,8 +417,8 @@ function print_unknown(node, css, indent_level) {

/**
* @param {import('css-tree').CssNode} node
* @param {number} indent_level
* @param {string} css
* @param {number} [indent_level=0]
* @returns {string} A formatted Stylesheet
*/
function print(node, css, indent_level = 0) {
Expand Down