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refactor into a single regular expression with two capture groups

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This commit is contained in:
Erik Krogh Kristensen
2020-10-09 14:50:16 +02:00
parent f6f8bbd1d8
commit 2fb19f0b11
1 changed files with 6 additions and 4 deletions
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10
javascript/ql/src/semmle/javascript/frameworks/ServerLess.qll
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@@ -63,10 +63,12 @@ private module ServerLess {
private predicate hasServerlessHandler(File file, string func) {
exists(File ymlFile, string handler, string codeURI, string fileName |
hasServerlessHandler(ymlFile, handler, codeURI) and
// Captures everything right of the dot in `handler`. E.g. if `handler` is "index.foo" then `func` is "foo".
func = handler.regexpCapture(".*\\.(.*)", 1) and
// Captures everything left of the dot in `handler`. E.g. if `handler` is "index.foo" then `fileName` is "index".
fileName = handler.regexpCapture("([^.]+).*", 1)
// Splits a `handler` into two components. The `fileName` to the left of the dot, and the `func` to the right.
// E.g. if `handler` is "index.foo", then `fileName` is "index" and `func` is "foo".
exists(string pattern | pattern = "(.*)\\.(.*)" |
fileName = handler.regexpCapture(pattern, 1) and
func = handler.regexpCapture(pattern, 2)
)
|
file.getAbsolutePath() =
ymlFile.getParentContainer().getAbsolutePath() + "/" +