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VerbalExpression.java
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246 lines (209 loc) · 6.17 KB
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import java.util.regex.Pattern;
class VerbalExpression {
private String prefixes, source, suffixes, pattern = "";
private int modifiers = Pattern.MULTILINE;
private String sanitize(String value) {
if(value == null)
return value;
return Pattern.quote(value);
}
public VerbalExpression add(String value) {
this.source = this.source != null ? this.source + value : value;
if (this.source != null) {
Pattern p = Pattern.compile(this.prefixes + this.source + this.suffixes, this.modifiers);
this.pattern = p.pattern();
}
return this;
}
public VerbalExpression startOfLine(boolean enable) {
this.prefixes = enable ? "^" : "";
this.add("");
return this;
}
public VerbalExpression startOfLine() {
return startOfLine(true);
}
public VerbalExpression endOfLine(boolean enable) {
this.suffixes = enable ? "$" : "";
this.add("");
return this;
}
public VerbalExpression endOfLine() {
return endOfLine(true);
}
public VerbalExpression then(String value) {
value = sanitize(value);
this.add("(" + value + ")");
return this;
}
public VerbalExpression find(String value) {
this.then(value);
return this;
}
public VerbalExpression maybe(String value) {
value = sanitize(value);
this.add("(" + value + ")?");
return this;
}
public VerbalExpression anything() {
this.add("(.*)");
return this;
}
public VerbalExpression anythingBut(String value) {
value = sanitize(value);
this.add("([^" + value + "]*)");
return this;
}
public VerbalExpression something() {
this.add("(.+)");
return this;
}
public VerbalExpression somethingBut(String value) {
value = sanitize(value);
this.add("([^" + value + "]+)");
return this;
}
public VerbalExpression replace(String source, String value) {
this.add("");
this.source.replaceAll(pattern,value);
return this;
}
public VerbalExpression lineBreak() {
this.add("(\\n|(\\r\\n))");
return this;
}
public VerbalExpression br() {
this.lineBreak();
return this;
}
public VerbalExpression tab() {
this.add("\\t");
return this;
}
public VerbalExpression word() {
this.add("\\w+");
return this;
}
public VerbalExpression anyOf(String value) {
value = sanitize(value);
this.add("[" + value + "]");
return this;
}
public VerbalExpression any(String value) {
this.anyOf(value);
return this;
}
public VerbalExpression range(Object[] args) {
String value = "[";
for(int _from = 0; _from < args.length; _from += 2) {
int _to = _from+1;
if (args.length <= _to) break;
int from = Integer.getInteger(sanitize((String)args[_from]));
int to = Integer.getInteger(sanitize((String)args[_to]));
value += from + "-" + to;
}
value += "]";
this.add(value);
return this;
}
public VerbalExpression addModifier(char modifier) {
switch (modifier) {
case 'd':
modifiers |= Pattern.UNIX_LINES;
break;
case 'i':
modifiers |= Pattern.CASE_INSENSITIVE;
break;
case 'x':
modifiers |= Pattern.COMMENTS;
break;
case 'm':
modifiers |= Pattern.MULTILINE;
break;
case 's':
modifiers |= Pattern.DOTALL;
break;
case 'u':
modifiers |= Pattern.UNICODE_CASE;
break;
case 'U':
modifiers |= Pattern.UNICODE_CHARACTER_CLASS;
break;
default:
break;
}
this.add("");
return this;
}
public VerbalExpression removeModifier(char modifier) {
switch (modifier) {
case 'd':
modifiers ^= Pattern.UNIX_LINES;
break;
case 'i':
modifiers ^= Pattern.CASE_INSENSITIVE;
break;
case 'x':
modifiers ^= Pattern.COMMENTS;
break;
case 'm':
modifiers ^= Pattern.MULTILINE;
break;
case 's':
modifiers ^= Pattern.DOTALL;
break;
case 'u':
modifiers ^= Pattern.UNICODE_CASE;
break;
case 'U':
modifiers ^= Pattern.UNICODE_CHARACTER_CLASS;
break;
default:
break;
}
this.add("");
return this;
}
public VerbalExpression withAnyCase(boolean enable) {
if (enable) this.addModifier( 'i' );
else this.removeModifier( 'i' );
this.add("");
return this;
}
public VerbalExpression withAnyCase() {
return withAnyCase(true);
}
public VerbalExpression searchOneLine(boolean enable) {
if (enable) this.removeModifier( 'm' );
else this.addModifier( 'm' );
this.add("");
return this;
}
public VerbalExpression multiple(String value) {
value = this.sanitize(value);
switch (value.charAt(0)) {
case '*':
case '+':
break;
default:
value += '+';
}
this.add(value);
return this;
}
public VerbalExpression or(String value) {
if (this.prefixes.indexOf("(") == -1) this.prefixes += "(";
if (this.suffixes.indexOf(")") == -1) this.suffixes = ")" + this.suffixes;
this.add(")|(");
if (value != null) this.then(value);
return this;
}
public boolean test(String toTest) {
this.add("");
return Pattern.matches(this.pattern, toTest);
}
public String toString() {
this.add("");
return this.pattern.toString();
}
}