本文整理汇总了Java中jdk.nashorn.internal.runtime.regexp.joni.constants.AnchorType.LOOK_BEHIND属性的典型用法代码示例。如果您正苦于以下问题:Java AnchorType.LOOK_BEHIND属性的具体用法?Java AnchorType.LOOK_BEHIND怎么用?Java AnchorType.LOOK_BEHIND使用的例子?那么恭喜您, 这里精选的属性代码示例或许可以为您提供帮助。您也可以进一步了解该属性所在类jdk.nashorn.internal.runtime.regexp.joni.constants.AnchorType
的用法示例。
在下文中一共展示了AnchorType.LOOK_BEHIND属性的4个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: compileLengthAnchorNode
private int compileLengthAnchorNode(final AnchorNode node) {
int tlen;
if (node.target != null) {
tlen = compileLengthTree(node.target);
} else {
tlen = 0;
}
int len;
switch (node.type) {
case AnchorType.PREC_READ:
len = OPSize.PUSH_POS + tlen + OPSize.POP_POS;
break;
case AnchorType.PREC_READ_NOT:
len = OPSize.PUSH_POS_NOT + tlen + OPSize.FAIL_POS;
break;
case AnchorType.LOOK_BEHIND:
len = OPSize.LOOK_BEHIND + tlen;
break;
case AnchorType.LOOK_BEHIND_NOT:
len = OPSize.PUSH_LOOK_BEHIND_NOT + tlen + OPSize.FAIL_LOOK_BEHIND_NOT;
break;
default:
len = OPSize.OPCODE;
break;
} // switch
return len;
}
示例2: compileLengthAnchorNode
private int compileLengthAnchorNode(AnchorNode node) {
int tlen;
if (node.target != null) {
tlen = compileLengthTree(node.target);
} else {
tlen = 0;
}
int len;
switch (node.type) {
case AnchorType.PREC_READ:
len = OPSize.PUSH_POS + tlen + OPSize.POP_POS;
break;
case AnchorType.PREC_READ_NOT:
len = OPSize.PUSH_POS_NOT + tlen + OPSize.FAIL_POS;
break;
case AnchorType.LOOK_BEHIND:
len = OPSize.LOOK_BEHIND + tlen;
break;
case AnchorType.LOOK_BEHIND_NOT:
len = OPSize.PUSH_LOOK_BEHIND_NOT + tlen + OPSize.FAIL_LOOK_BEHIND_NOT;
break;
default:
len = OPSize.OPCODE;
break;
} // switch
return len;
}
示例3: compileAnchorNode
@Override
protected void compileAnchorNode(final AnchorNode node) {
int len;
int n;
switch (node.type) {
case AnchorType.BEGIN_BUF: addOpcode(OPCode.BEGIN_BUF); break;
case AnchorType.END_BUF: addOpcode(OPCode.END_BUF); break;
case AnchorType.BEGIN_LINE: addOpcode(OPCode.BEGIN_LINE); break;
case AnchorType.END_LINE: addOpcode(OPCode.END_LINE); break;
case AnchorType.SEMI_END_BUF: addOpcode(OPCode.SEMI_END_BUF); break;
case AnchorType.BEGIN_POSITION: addOpcode(OPCode.BEGIN_POSITION); break;
case AnchorType.WORD_BOUND:
addOpcode(OPCode.WORD_BOUND);
break;
case AnchorType.NOT_WORD_BOUND:
addOpcode(OPCode.NOT_WORD_BOUND);
break;
case AnchorType.WORD_BEGIN:
if (Config.USE_WORD_BEGIN_END) {
addOpcode(OPCode.WORD_BEGIN);
}
break;
case AnchorType.WORD_END:
if (Config.USE_WORD_BEGIN_END) {
addOpcode(OPCode.WORD_END);
}
break;
case AnchorType.PREC_READ:
addOpcode(OPCode.PUSH_POS);
compileTree(node.target);
addOpcode(OPCode.POP_POS);
break;
case AnchorType.PREC_READ_NOT:
len = compileLengthTree(node.target);
addOpcodeRelAddr(OPCode.PUSH_POS_NOT, len + OPSize.FAIL_POS);
compileTree(node.target);
addOpcode(OPCode.FAIL_POS);
break;
case AnchorType.LOOK_BEHIND:
addOpcode(OPCode.LOOK_BEHIND);
if (node.charLength < 0) {
n = analyser.getCharLengthTree(node.target);
if (analyser.returnCode != 0) {
newSyntaxException(ERR_INVALID_LOOK_BEHIND_PATTERN);
}
} else {
n = node.charLength;
}
addLength(n);
compileTree(node.target);
break;
case AnchorType.LOOK_BEHIND_NOT:
len = compileLengthTree(node.target);
addOpcodeRelAddr(OPCode.PUSH_LOOK_BEHIND_NOT, len + OPSize.FAIL_LOOK_BEHIND_NOT);
if (node.charLength < 0) {
n = analyser.getCharLengthTree(node.target);
if (analyser.returnCode != 0) {
newSyntaxException(ERR_INVALID_LOOK_BEHIND_PATTERN);
}
} else {
n = node.charLength;
}
addLength(n);
compileTree(node.target);
addOpcode(OPCode.FAIL_LOOK_BEHIND_NOT);
break;
default:
newInternalException(ERR_PARSER_BUG);
} // switch
}
示例4: compileAnchorNode
@Override
protected void compileAnchorNode(AnchorNode node) {
int len;
int n;
switch (node.type) {
case AnchorType.BEGIN_BUF: addOpcode(OPCode.BEGIN_BUF); break;
case AnchorType.END_BUF: addOpcode(OPCode.END_BUF); break;
case AnchorType.BEGIN_LINE: addOpcode(OPCode.BEGIN_LINE); break;
case AnchorType.END_LINE: addOpcode(OPCode.END_LINE); break;
case AnchorType.SEMI_END_BUF: addOpcode(OPCode.SEMI_END_BUF); break;
case AnchorType.BEGIN_POSITION: addOpcode(OPCode.BEGIN_POSITION); break;
case AnchorType.WORD_BOUND:
addOpcode(OPCode.WORD_BOUND);
break;
case AnchorType.NOT_WORD_BOUND:
addOpcode(OPCode.NOT_WORD_BOUND);
break;
case AnchorType.WORD_BEGIN:
if (Config.USE_WORD_BEGIN_END)
addOpcode(OPCode.WORD_BEGIN);
break;
case AnchorType.WORD_END:
if (Config.USE_WORD_BEGIN_END)
addOpcode(OPCode.WORD_END);
break;
case AnchorType.PREC_READ:
addOpcode(OPCode.PUSH_POS);
compileTree(node.target);
addOpcode(OPCode.POP_POS);
break;
case AnchorType.PREC_READ_NOT:
len = compileLengthTree(node.target);
addOpcodeRelAddr(OPCode.PUSH_POS_NOT, len + OPSize.FAIL_POS);
compileTree(node.target);
addOpcode(OPCode.FAIL_POS);
break;
case AnchorType.LOOK_BEHIND:
addOpcode(OPCode.LOOK_BEHIND);
if (node.charLength < 0) {
n = analyser.getCharLengthTree(node.target);
if (analyser.returnCode != 0) newSyntaxException(ERR_INVALID_LOOK_BEHIND_PATTERN);
} else {
n = node.charLength;
}
addLength(n);
compileTree(node.target);
break;
case AnchorType.LOOK_BEHIND_NOT:
len = compileLengthTree(node.target);
addOpcodeRelAddr(OPCode.PUSH_LOOK_BEHIND_NOT, len + OPSize.FAIL_LOOK_BEHIND_NOT);
if (node.charLength < 0) {
n = analyser.getCharLengthTree(node.target);
if (analyser.returnCode != 0) newSyntaxException(ERR_INVALID_LOOK_BEHIND_PATTERN);
} else {
n = node.charLength;
}
addLength(n);
compileTree(node.target);
addOpcode(OPCode.FAIL_LOOK_BEHIND_NOT);
break;
default:
newInternalException(ERR_PARSER_BUG);
} // switch
}