创建一个支持字符串的番石榴分割器
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我想为Java创建一个Guava Splitter，可以将Java字符串作为一个块来处理。例如，我希望以下断言为真：
@Test
public void testSplitter() {
String toSplit = \"a,b,\\\"c,d\\\\\\\"\\\",e\";
List<String> expected = ImmutableList.of(\"a\", \"b\", \"c,d\\\"\",\"e\");
Splitter splitter = Splitter.onPattern(...);
List<String> actual = ImmutableList.copyOf(splitter.split(toSplit));
assertEquals(expected, actual);
}
没有找到相关结果
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喷乡顾沥沪
疏腔傻小雹
习让休堂溯
public static Splitter quotableComma() { return on(new CharMatcher() { private boolean inQuotes = false; @Override public boolean matches(char c) { if (\'\"\' == c) { inQuotes = !inQuotes; } if (inQuotes) { return false; } return (\',\' == c); } }); } @Test public void testQuotableComma() throws Exception { String toSplit = \"a,b,\\\"c,d\\\",e\"; List<String> expected = ImmutableList.of(\"a\", \"b\", \"\\\"c,d\\\"\", \"e\"); Splitter splitter = Splitters.quotableComma(); List<String> actual = ImmutableList.copyOf(splitter.split(toSplit)); assertEquals(expected, actual); }扇献隙
与标志看起来（比较友好）：(?x) # enable comments, ignore space-literals \\s*,\\s* # match a comma optionally surrounded by space-chars (?= # start positive look ahead ( # start group 1 ( # start group 2 \\\\[\"\\\\] # match an escaped quote or backslash | # OR [^\"\\\\] # match any char other than a quote or backslash )* # end group 2, and repeat it zero or more times \" # match a quote ( # start group 3 \\\\[\"\\\\] # match an escaped quote or backslash | # OR [^\"\\\\] # match any char other than a quote or backslash )* # end group 3, and repeat it zero or more times \" # match a quote )* # end group 1, and repeat it zero or more times ( # open group 4 \\\\[\"\\\\] # match an escaped quote or backslash | # OR [^\"\\\\] # match any char other than a quote or backslash )* # end group 4, and repeat it zero or more times $ # match the end-of-input ) # end positive look ahead（作为字面量：）将被拆分为以下内容：了驳
final static CharMatcher notQuoted = new CharMatcher() { private boolean inQuotes = false; @Override public boolean matches(char c) { if (\'\"\' == c) { inQuotes = !inQuotes; } return !inQuotes; }; final static Splitter SPLITTER = Splitter.on(notQuoted.and(CharMatcher.anyOf(\" ,;|\"))).trimResults().omitEmptyStrings();public static void main(String[] args) { final String toSplit = \"a=b c=d,kuku=\\\"e=f|g=h something=other\\\"\"; List<String> sputnik = SPLITTER.splitToList(toSplit); for (String s : sputnik) System.out.println(s); }