To mark a matched substring for future reference.
记录一个已匹配的子串用作后面的参考引用。
The length argument specifies the length of the desired substring.
长度参数指定了所需子字符串的长度。
To use the value, you have to remove the hash mark: Use the XSLT substring() function.
为使用该值，则必须除去井号：使用XSLTsubstring()函数。
Each regular expression in this example is a substring of one of the test strings.
在这个例子中的每个正规表达式都是测试字符串的子串之一。
The characters in a subsequence, unlike those in a substring, do not need to be contiguous.
子序列中的字符与子字符串中的字符不同，它们不需要是连续的。
The for loop iterates over the list of substrings, printing out each substring and its length.
for 循环迭代子字符串 list，打印每个子字符串及其长度。
Inside a matching-substring instruction, the period (.) represents the string that matched the pattern.
在matching - substring指令内部，句号(.)表示匹配模式的字符串。
Also, passing a non-string argument to a string-oriented function such as substring , contains , and so forth.
以及向面向字符串的函数如substring 、contains传递非字符参数等。
The categories of interest can be any valid Wikipedia category (or even any substring of a Wikipedia category).
感兴趣的类别可以是任何有效的Wikipedia类别(或者甚至某个Wikipedia类别的任何子字符串)。
The * character is used to indicate wildcards, and can be used to support substring matching as in com.infoq.*.*.
“*”是通配符，可用来支持子字符串匹配，比如 com.infoq.*.*。
Rope implementations also often defer evaluation of large substring operations by introducing a substring node.
Rope实现通常也将延迟对大型子串操作的求值，它的作法是引入子串节点。
If only a small substring is needed, then - because the whole character array is retained - some space is wasted.
但是如果只有一小段字符串被使用，那么—由于整个字符数组仍然被保存—就有一些空间被浪费了。
The cut attribute indicates whether to delete the matched substring segment from the request URL before proceeding.
cut属性指出是否在继续之前从请求URL中删除匹配的子字符串片段。
When extracting strings from a set of input data, try to return a substring of the original data, instead of creating a copy.
当从原始的输入数据中提取字符串时，试着从原始字符串返回一个子字符串，而不是创建一份拷贝。
Listing 5 depends on certain behaviors for substring in some edge cases, as well as the conversion of Boolean values to Numbers.
清单5依赖于substring在某些边界情况下的行为以及布尔值到数字的转换。
You saw in Part 1, Figure 13 that the cn attribute type has a field called substr, which defines the matching rules for substring match.
在第1部分的图13可以看到，cn属性类型有一个叫做SUBSTR的字段，它定义了子字符串匹配的匹配规则。
The second command, /usr/local/bin/search --config /usr/local/etc/sphinx.conf wind, found the substring wind in two part descriptions.
第二条命令 /usr/local/bin/search --config /usr/local/etc/sphinx.confwind在两个零件描述中找到了子字符串 wind。
Complex queries are serviced by a combination of direct lookups, convergences against selected parent nodes, and targeted substring searches.
复杂查询是通过组合直接查找和对所选父节点的汇聚及目标子串搜索来完成的。
The first argument is the substring, the second argument is the search string, and an optional starting position can be supplied as a third argument.
第一个参数是子字符串，第二个参数是搜索字符串，可选的起始位置可以提供作为第三个参数。
You'll recognize several parameter expansions, including length, substring, pattern matching, and pattern replacement in even this short piece of script.
即使在这样一小段脚本中，您也可以找到一些参数扩展，包括长度、子字符串、模式匹配和模式替换。
This form of string chopping can come in quite handy; simply specify the character to start from and the length of the substring, all separated by colons.
这种形式的字符串截断非常简便，只需用冒号分开来指定起始字符和子字符串长度。
We can use another form of variable expansion to select a specific substring, based on a specific character offset and length. Try typing in the following lines under bash.
可以根据特定字符偏移和长度，使用另一种形式的变量扩展，来选择特定子字符串。
The second line, the first rewrite condition, indicates that following rules only apply when the user-agent string in the HTTP request header contains the substring MSIE.
第二行的第一个重写条件表明：下面的规则仅适用于HTTP请求报头中的user - agent字符串包含子字符串msie的情形。
Then, bash took MYVAR, found the longest substring from the beginning of the string "foodforthought.jpg" that matched the wildcard "*fo", and chopped it off the beginning of the string.
然后，bash 取得MYVAR，找到从字符串 "foodforthought.jpg"开始处开始、且匹配通配符 "*fo"的最长 子字符串，然后将其从字符串的开始处截去。
Ideally, the string of characters should have a substring such as error or something similar (see the statement in bold blue), which will allow the tester to quickly find the error in the output file.
较理想的做法是，字符串有一个如error或与之相似的子串(见蓝色粗体的语句)，这个子串允许测试者很快地在输出文件中查找到错误。
The Substring function will extract text from a source string.
Substring函数将从源字符串提取文本。
You can use the Substring function by specifying ", "(comma) as the delimiter.
可以通过指定“，”(逗号)作为分隔符来使用substring函数。
We pass Substring a single parameter: the starting position where we want to begin extracting characters.
我们传递给Substring一个参数：我们想要开始提取字符的开始位置。
The Substring function uses a delimiter and index to determine what text to extract from the incoming source string.
Substring函数使用一个分隔符和索引来判断要从进入的源字符串提取哪些文本。
Along with the input string, the SUBSTRING function has three other arguments, which are start position, length, and code unit specification.
除了输入字符串之外，SUBSTRING函数还有其他三个参数，它们分别是：起始位置、长度和代码单元指定。
应用推荐