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package otto
import (
"fmt"
)
// RegExp
func builtinRegExp(call FunctionCall) Value {
pattern := call.Argument(0)
flags := call.Argument(1)
if object := pattern._object(); object != nil {
if object.class == "RegExp" && flags.IsUndefined() {
return pattern
}
}
return toValue_object(call.runtime.newRegExp(pattern, flags))
}
func builtinNewRegExp(self *_object, argumentList []Value) Value {
return toValue_object(self.runtime.newRegExp(
valueOfArrayIndex(argumentList, 0),
valueOfArrayIndex(argumentList, 1),
))
}
func builtinRegExp_toString(call FunctionCall) Value {
thisObject := call.thisObject()
source := thisObject.get("source").string()
flags := []byte{}
if thisObject.get("global").bool() {
flags = append(flags, 'g')
}
if thisObject.get("ignoreCase").bool() {
flags = append(flags, 'i')
}
if thisObject.get("multiline").bool() {
flags = append(flags, 'm')
}
return toValue_string(fmt.Sprintf("/%s/%s", source, flags))
}
func builtinRegExp_exec(call FunctionCall) Value {
thisObject := call.thisObject()
target := call.Argument(0).string()
match, result := execRegExp(thisObject, target)
if !match {
return nullValue
}
return toValue_object(execResultToArray(call.runtime, target, result))
}
func builtinRegExp_test(call FunctionCall) Value {
thisObject := call.thisObject()
target := call.Argument(0).string()
match, _ := execRegExp(thisObject, target)
return toValue_bool(match)
}
func builtinRegExp_compile(call FunctionCall) Value {
// This (useless) function is deprecated, but is here to provide some
// semblance of compatibility.
// Caveat emptor: it may not be around for long.
return Value{}
}
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