feat: support s and d flag (#12)

- `s` means dotAll
- `d` flag is just ignored

Author: azu

src/regexp-parse.ts

@@ -1,4 +1,5 @@
-const REGEXP_LITERAL_PATTERN = /^\/(.*)\/([guimy]*)$/;
+// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_Expressions#advanced_searching_with_flags
+const REGEXP_LITERAL_PATTERN = /^\/(.*)\/([guimysd]*)$/;
 export const parseRegExpString = (str: string): { source: string; flagString: string } | null => {
     const result = str.match(REGEXP_LITERAL_PATTERN);
     if (!result) {

test/snapshots/dotAll-regexp/input-patterns.json

@@ -0,0 +1,3 @@
+[
+  "/.+/s"
+]

test/snapshots/dotAll-regexp/input.txt

@@ -0,0 +1,3 @@
+1
+2
+3

test/snapshots/dotAll-regexp/output-for-human.md

@@ -0,0 +1,16 @@
+
+- match text: **1
+2
+3
+**
+- captures: **[]**
+- startIndex: **0**
+- endIndex: **6**
+
+```
+**1
+2
+3
+**
+```
+

test/snapshots/dotAll-regexp/output-for-machine.json

@@ -0,0 +1,8 @@
+[
+    {
+        "match": "1\n2\n3\n",
+        "captures": [],
+        "startIndex": 0,
+        "endIndex": 6
+    }
+]