JS_NewRegExpObject 编辑
Create a new RegExp object.
Syntax
JSObject *
JS_NewRegExpObject(JSContext *cx, JS::HandleObject obj,
const char *bytes, size_t length,
unsigned flags);
JSObject *
JS_NewUCRegExpObject(JSContext *cx, JS::HandleObject obj,
const char16_t *chars, size_t length,
unsigned flags);
JSObject *
JS_NewRegExpObjectNoStatics(JSContext *cx, char *bytes, size_t length,
unsigned flags);
JSObject *
JS_NewUCRegExpObjectNoStatics(JSContext *cx, char16_t *chars, size_t length,
unsigned flags);
| Name | Type | Description |
|---|---|---|
cx | JSContext * | The context in which to create the new object. Requires request. In a |
obj | JS::HandleObject | A pointer to a global object. |
bytes or chars | const char * or const char16_t * | A pointer to the string that contains a regular expression. |
length | size_t | The length of bytes or chars, in characters. |
flags | unsigned | Regular expression flags. See below. |
Flags
| Name | Description | RegExp constructor flag |
|---|---|---|
JSREG_FOLD | Fold uppercase to lowercase. | i |
JSREG_GLOB | Global execution, creates array of matches. | g |
JSREG_MULTILINE | Treat ^ and $ as begin and end of line. | m |
JSREG_STICKY | Only match starting at lastIndex. | y |
Description
JS_NewRegExpObject and JS_NewUCRegExpObject create a new RegExp instance. The flags from the built-in RegExp constructor properties ignoreCase, global, multiline, and sticky are OR'd in with the provided flags parameter.
JS_NewRegExpObjectNoStatics and JS_NewUCRegExpObjectNoStatics create a new RegExp instance. They do not OR in any RegExp constructor properties.
See Also
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