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Merged
merged 7 commits into from
Dec 3, 2018
Merged

Identify JavaScript function parameters #1446

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5cf3b3d
Identify Javascript function parameters
RexSkz Jun 19, 2018
9ef0c3e
Fix bugs in #1446 and add tests
RexSkz Jul 12, 2018
7205979
JS: Exclude function name from parameter
RexSkz Jul 12, 2018
4e7261e
Strip trailing spaces and fix word boundary in JS regex
RexSkz Jul 12, 2018
685d0db
Some improvment for JS parameters
RexSkz Jul 13, 2018
f90f138
resolve conflict
RexSkz Aug 20, 2018
d2f3c9d
fix: Resolve conflict
RexSkz Dec 3, 2018
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12 changes: 9 additions & 3 deletions components/prism-javascript.js
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Original file line number Diff line number Diff line change
Expand Up @@ -19,16 +19,22 @@ Prism.languages.insertBefore('javascript', 'keyword', {
},
'parameter': [
{
pattern: /(function)(?:\s+[_$a-z\xA0-\uFFFF][$\w\xA0-\uFFFF]*)?\s*(\([^()]*\))/,
pattern: /(function(?:\s+[_$a-z\xA0-\uFFFF][$\w\xA0-\uFFFF]*)?\s*\(\s*)\S[^()]*(?=\s*\))/,
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@RunDevelopment RunDevelopment Jul 12, 2018

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2 Problems here:

  1. You probably don't want trailing spaces, so please make it [^()]*?. Otherwise (?=\s* won't match anything.
  2. This also matches function a()). Not valid JS, I know, but still. Replace \S with [^\s()] and your good to go.

lookbehind: true,
inside: Prism.languages.javascript
},
{
pattern: /(\([^()]*\)|[_$a-z\xA0-\uFFFF][$\w\xA0-\uFFFF]*)(?=\s*=>)/,
pattern: /[_$a-z\xA0-\uFFFF][$\w\xA0-\uFFFF]*(?=\s*=>)/,
inside: Prism.languages.javascript
},
{
pattern: /\b(?!await|delete|export|for|if|new|return|switch|throw|typeof|while|yield)(?:[_$a-z\xA0-\uFFFF][$\w\xA0-\uFFFF]*\s*)(\([^()]*\))(?=\s*\{)/,
pattern: /(\()[^()]+(?=\)\s*=>)/,
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@RunDevelopment RunDevelopment Jul 12, 2018

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Leading and trailing spaces might not be wanted.

lookbehind: true,
inside: Prism.languages.javascript
},
{
pattern: /(\b(?!await|delete|export|for|if|new|return|switch|throw|typeof|while|yield)(?:[_$a-z\xA0-\uFFFF][$\w\xA0-\uFFFF]*\s*)\(\s*)\S[^()]*(?=\s*\)\s*\{)/,
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@RunDevelopment RunDevelopment Jul 12, 2018

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  1. There might be problems with \S again.
  2. Spaces?
  3. awaitSomething(a){} is not matched. Neither is $await(a){} (\b might not have been the best choice).

lookbehind: true,
inside: Prism.languages.javascript
}
],
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2 changes: 1 addition & 1 deletion components/prism-javascript.min.js
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12 changes: 9 additions & 3 deletions prism.js
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Original file line number Diff line number Diff line change
Expand Up @@ -742,16 +742,22 @@ Prism.languages.insertBefore('javascript', 'keyword', {
},
'parameter': [
{
pattern: /(function)(?:\s+[_$a-z\xA0-\uFFFF][$\w\xA0-\uFFFF]*)?\s*(\([^()]*\))/,
pattern: /(function(?:\s+[_$a-z\xA0-\uFFFF][$\w\xA0-\uFFFF]*)?\s*\(\s*)\S[^()]*(?=\s*\))/,
lookbehind: true,
inside: Prism.languages.javascript
},
{
pattern: /(\([^()]*\)|[_$a-z\xA0-\uFFFF][$\w\xA0-\uFFFF]*)(?=\s*=>)/,
pattern: /[_$a-z\xA0-\uFFFF][$\w\xA0-\uFFFF]*(?=\s*=>)/,
inside: Prism.languages.javascript
},
{
pattern: /\b(?!await|delete|export|for|if|new|return|switch|throw|typeof|while|yield)(?:[_$a-z\xA0-\uFFFF][$\w\xA0-\uFFFF]*\s*)(\([^()]*\))(?=\s*\{)/,
pattern: /(\()[^()]+(?=\)\s*=>)/,
lookbehind: true,
inside: Prism.languages.javascript
},
{
pattern: /(\b(?!await|delete|export|for|if|new|return|switch|throw|typeof|while|yield)(?:[_$a-z\xA0-\uFFFF][$\w\xA0-\uFFFF]*\s*)\(\s*)\S[^()]*(?=\s*\)\s*\{)/,
lookbehind: true,
inside: Prism.languages.javascript
}
],
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24 changes: 11 additions & 13 deletions tests/languages/javascript/class-method_feature.test
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Original file line number Diff line number Diff line change
Expand Up @@ -11,38 +11,36 @@ class Test {
["class-name", ["Test"]],
["punctuation", "{"],

["function", "foo"],
["punctuation", "("],
["parameter", [
["function", "foo"],
["punctuation", "("],
"x",
["punctuation", ","],
" y ",
["operator", "="],
["number", "0"],
["punctuation", ")"]
["number", "0"]
]],
["punctuation", ")"],
["punctuation", "{"],
["punctuation", "}"],

["keyword", "async"],
["function", "bar"],
["punctuation", "("],
["parameter", [
["function", "bar"],
["punctuation", "("],
"x",
["punctuation", ","],
" y ",
["operator", "="],
["number", "0"],
["punctuation", ")"]
["number", "0"]
]],
["punctuation", ")"],
["punctuation", "{"],
["punctuation", "}"],

["parameter", [
["function", "_"],
["punctuation", "("],
["punctuation", ")"]
]],
["function", "_"],
["punctuation", "("],
["punctuation", ")"],
["punctuation", "{"],
["punctuation", "}"],

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40 changes: 19 additions & 21 deletions tests/languages/javascript/function-variable_feature.test
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Original file line number Diff line number Diff line change
Expand Up @@ -12,37 +12,37 @@ fooBar = (x, y) => x
["function-variable", "foo"],
["operator", "="],
["keyword", "function"],
["punctuation", "("],
["parameter", [
["punctuation", "("],
" x",
"x",
["punctuation", ","],
" y",
["punctuation", ")"]
" y"
]],
["punctuation", ")"],
["punctuation", "{"],
["punctuation", "}"],

["function-variable", "bar"],
["operator", "="],
["keyword", "async"],
["keyword", "function"],
["function", "baz"],
["punctuation", "("],
["parameter", [
["function", "baz"],
["punctuation", "("],
"x ",
["punctuation", ")"]
"x "
]],
["punctuation", ")"],
["punctuation", "{"],
["punctuation", "}"],

["function-variable", "baz"],
["operator", "="],
["keyword", "async"],
["punctuation", "("],
["parameter", [
["punctuation", "("],
"x",
["punctuation", ")"]
"x"
]],
["punctuation", ")"],
["operator", "=>"], " x\r\n",

["function-variable", "fooBar"],
Expand All @@ -54,37 +54,35 @@ fooBar = (x, y) => x

["function-variable", "fooBar"],
["operator", "="],
["punctuation", "("],
["parameter", [
["punctuation", "("],
"x",
["punctuation", ","],
" y",
["punctuation", ")"]
" y"
]],
["punctuation", ")"],
["operator", "=>"], " x\r\n",

["function-variable", "ಠ_ಠ"],
["operator", "="],
["parameter", [
["punctuation", "("],
["punctuation", ")"]
]],
["punctuation", "("],
["punctuation", ")"],
["operator", "=>"],
["punctuation", "{"],
["punctuation", "}"],

["function-variable", "Ƞȡ_҇"],
["operator", "="],
["keyword", "async"],
["punctuation", "("],
["parameter", [
["punctuation", "("],
"ಠ",
["punctuation", ","],
" Ƞ ",
["operator", "="],
["number", "2"],
["punctuation", ")"]
["number", "2"]
]],
["punctuation", ")"],
["operator", "=>"],
["punctuation", "{"],
["punctuation", "}"]
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3 changes: 2 additions & 1 deletion tests/languages/jsx/issue1294.test
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Expand Up @@ -13,7 +13,8 @@ export default () => (
[
["keyword", "export"],
["keyword", "default"],
["parameter", [["punctuation", "("], ["punctuation", ")"]]],
["punctuation", "("],
["punctuation", ")"],
["operator", "=>"], ["punctuation", "("],
["tag", [
["tag", [
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6 changes: 3 additions & 3 deletions tests/languages/jsx/issue1335.test
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Expand Up @@ -20,11 +20,11 @@
["script", [
["script-punctuation", "="],
["punctuation", "{"],
["punctuation", "("],
["parameter", [
["punctuation", "("],
"e",
["punctuation", ")"]
"e"
]],
["punctuation", ")"],
["operator", "=>"],
["keyword", "this"],
["punctuation", "."],
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6 changes: 2 additions & 4 deletions tests/languages/jsx/issue1421.test
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Expand Up @@ -17,10 +17,8 @@ class Columns extends React.Component {
["keyword", "extends"],
["class-name", ["React", ["punctuation", "."], "Component"]],
["punctuation", "{"],
["parameter", [
["function", "render"],
["punctuation", "("], ["punctuation", ")"]
]],
["function", "render"],
["punctuation", "("], ["punctuation", ")"],
["punctuation", "{"],
["keyword", "return"], ["punctuation", "("],
["tag", [
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8 changes: 3 additions & 5 deletions tests/languages/tsx/tag_feature.test
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Expand Up @@ -66,11 +66,9 @@ class Test extends Component {
["keyword", "extends"],
["class-name", ["Component"]],
["punctuation", "{"],
["parameter", [
["function", "render"],
["punctuation", "("],
["punctuation", ")"]
]],
["function", "render"],
["punctuation", "("],
["punctuation", ")"],
["punctuation", "{"],
["keyword","return"],
["tag", [
Expand Down