subexpression

subexpression

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• 网络子表达式；子运算式；子表示式

例句

The input and output of every query or subexpression within a query each form an instance of the Query data model.

查询中的每个查询或子表达式的输入和输出都将形成Query数据模型的实例。

Captures the matched subexpression into a group name or number name. The string used for.

将匹配的子字符串捕获到一个组名称或编号名称中。

Each subexpression is identified by number, and is referred to as a back reference.

每个子表达式都由一个编号来标识，并称作反向引用。

where the box indicates that the value is the result of a previously evaluated subexpression.

其中方框表示该值是之前子表达式赋值的结果。

One such trick is the ? : operator at the beginning of a subexpression.

其中一个技巧是子表达式开始处的？：运算符。

Step 1: To avoid dealing with parentheses, W3Eval determines which subexpression lies within the deepest nested pair of parentheses.

步骤1：为避免括号的处理，W3Eval确定哪个子表达式处于嵌套最深的那对括号中。

Marks the beginning and end of a subexpression.

标记子表达式的开始和结束。

Constant folding, common subexpression elimination are effective techniques in optimizing intermediate code.

常量合并、删除公共子表达式是中间代码优化时采用的有效技术。

You can refer to a subexpression from within a regular expression, and from within a replacement string.

可以从正则表达式和替换字符串中引用子表达式。

Continues match only if the subexpression does not match at the position on the left.

仅当子表达式不在此位置的左侧匹配时才继续匹配。

The first parenthetical subexpression captures the protocol part of the Web address.

第一个括号子表达式捕获Web地址的协议部分。

For global common subexpression optimization, the compiler searches entire functions for common subexpressions.

对于全局公共子表达式优化，编译器搜索全部函数中的公共子表达式。

In this optimization, the value of a common subexpression is calculated once.

在此优化中，计算一次公共子表达式的值。

The second parenthetical subexpression captures the domain address part of the address.

第二个括号子表达式捕获地址的域地址部分。

Continues match only if the subexpression does not match at this position on the right.

仅当子表达式不在此位置的右侧匹配时才继续匹配。

To evaluate the larger expression, the subexpression that changes the operand must first be evaluated.

而为了计算更复杂的表达式，改变操作数值的子表达式必须首先计算。

A collection of ranges is returned, one for each matched subexpression, and their properties are read-only.

传回范围的集合（一个集合对一个符合的子运算式），而且它们的属性都是唯读的。

For local common subexpression optimization, the compiler examines short sections of code for common subexpressions.

对于局部公共子表达式优化，编译器检查公共子表达式的一小部分代码。

Matches the preceding character or subexpression zero or more times.

零次或多次匹配前面的字符或子表达式。

You can also refer to a subexpression from within a replacement string.

还可以从替换字符串中引用子表达式。

That subexpression matches any word that precedes a colon and two forward slashes.

该子表达式匹配在冒号和两个正斜杠前面的任何单词。

full-expression is an expression that is not a subexpression of another expression.

不是其他表达式的子表达式的表达式是完整表达式。

The subexpression in this case is everything enclosed in parentheses.

在此情况下，子表达式是括在括号中的所有内容。

The Capture class contains the results from a single subexpression capture.

Capture类包含来自单个子表达式捕获的结果。

Continues match only if the subexpression matches at this position on the right.

仅当子表达式在此位置的右侧匹配时才继续匹配。

Represents the results from a single subexpression capture.

表示单个子表达式捕获中的结果。

Continues match only if the subexpression matches at this position on the left.

仅当子表达式在此位置的左侧匹配时才继续匹配。

Matches the preceding character or subexpression one or more times.

一次或多次匹配前面的字符或子表达式。

More often it simply has the effect of removing a common subexpression.

通常它只是除去公共子表达式。

Otherwise, the third subexpression is evaluated, and that is the value.

否则，将是第三个子表达式的值。

Use ( and ) parentheses (just as you do in mathematics) to apply a modifier to a subexpression. Here's an example: Given text file test. txt

使用（和）圆括号（就像数学中的用法）将修饰符应用到子表达式。

Common Subexpression Elimination and Algebraic Simplification

公共子表达式消除和代数简化

Local and global common subexpression elimination

局部和全局公共子表达式消除

This means "match a subpattern, but don't include the match in the back-references. " So let's examine the subexpression

这表示“查找子模式的匹配字符串，但不包括反向引用中的匹配结果”。

The following regular expression uses a single subexpression to do that

下面的正则表达式使用单个子表达式来实现这一点