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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* vim: set ts=8 sts=2 et sw=2 tw=80:
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/* Regular expression-related operations. */
#ifndef js_RegExp_h
#define js_RegExp_h
#include <stddef.h> // size_t
#include "jstypes.h" // JS_PUBLIC_API
#include "js/RegExpFlags.h" // JS::RegExpFlags
#include "js/TypeDecls.h"
struct JS_PUBLIC_API JSContext;
class JS_PUBLIC_API JSString;
namespace JS {
/**
* Create a new RegExp for the given Latin-1-encoded bytes and flags.
*/
extern JS_PUBLIC_API JSObject* NewRegExpObject(JSContext* cx, const char* bytes,
size_t length,
RegExpFlags flags);
/**
* Create a new RegExp for the given source and flags.
*/
extern JS_PUBLIC_API JSObject* NewUCRegExpObject(JSContext* cx,
const char16_t* chars,
size_t length,
RegExpFlags flags);
extern JS_PUBLIC_API bool SetRegExpInput(JSContext* cx, Handle<JSObject*> obj,
Handle<JSString*> input);
extern JS_PUBLIC_API bool ClearRegExpStatics(JSContext* cx,
Handle<JSObject*> obj);
/**
* Execute a regexp on a given input, starting from |indexp|.
* Returns false on OOM or over-recursion.
*
* On no match, |rval| is set to Null.
* On a match, |indexp| and the RegExp statics are updated.
* Then, if |test| is true, |rval| is set to true.
* Otherwise, |rval| is set to a match result object.
*/
extern JS_PUBLIC_API bool ExecuteRegExp(JSContext* cx, Handle<JSObject*> obj,
Handle<JSObject*> reobj,
const char16_t* chars, size_t length,
size_t* indexp, bool test,
MutableHandle<Value> rval);
/**
* Execute a regexp on a given input, starting from |indexp|.
* This is the same as ExecuteRegExp, except it does not update the RegExp
* statics and can be called without a global object.
*/
extern JS_PUBLIC_API bool ExecuteRegExpNoStatics(
JSContext* cx, Handle<JSObject*> reobj, const char16_t* chars,
size_t length, size_t* indexp, bool test, MutableHandle<Value> rval);
/**
* On success, returns true, setting |*isRegExp| to true if |obj| is a RegExp
* object or a wrapper around one, or to false if not. Returns false on
* failure.
*
* This method returns true with |*isRegExp == false| when passed an ES6 proxy
* whose target is a RegExp, or when passed a revoked proxy.
*/
extern JS_PUBLIC_API bool ObjectIsRegExp(JSContext* cx, Handle<JSObject*> obj,
bool* isRegExp);
/**
* Given a RegExp object (or a wrapper around one), return the set of all
* JS::RegExpFlag::* for it.
*/
extern JS_PUBLIC_API RegExpFlags GetRegExpFlags(JSContext* cx,
Handle<JSObject*> obj);
/**
* Return the source text for a RegExp object (or a wrapper around one), or null
* on failure.
*/
extern JS_PUBLIC_API JSString* GetRegExpSource(JSContext* cx,
Handle<JSObject*> obj);
/**
* Check whether the given source is a valid regexp. If the regexp parses
* successfully, returns true and sets |error| to undefined. If the regexp
* has a syntax error, returns true, sets |error| to that error object, and
* clears the exception. Returns false on OOM or over-recursion.
*/
extern JS_PUBLIC_API bool CheckRegExpSyntax(JSContext* cx,
const char16_t* chars,
size_t length, RegExpFlags flags,
MutableHandle<Value> error);
} // namespace JS
#endif // js_RegExp_h
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