Fix Javadoc issues

src/main/java/com/ezylang/evalex/functions/basic/CeilingFunction.java

@@ -22,7 +22,7 @@
 import com.ezylang.evalex.parser.Token;
 import java.math.RoundingMode;
 
-/** Rounds the given value an integer using the rounding mode {@link RoundingMode#CEILING} */
+/** Rounds the given value to an integer using the rounding mode {@link RoundingMode#CEILING} */
 @FunctionParameter(name = "value")
 public class CeilingFunction extends AbstractFunction {
   @Override

src/main/java/com/ezylang/evalex/functions/basic/FloorFunction.java

@@ -22,7 +22,7 @@
 import com.ezylang.evalex.parser.Token;
 import java.math.RoundingMode;
 
-/** Rounds the given value an integer using the rounding mode {@link RoundingMode#FLOOR} */
+/** Rounds the given value to an integer using the rounding mode {@link RoundingMode#FLOOR} */
 @FunctionParameter(name = "value")
 public class FloorFunction extends AbstractFunction {
   @Override

src/main/java/com/ezylang/evalex/functions/datetime/DateTimeFormatFunction.java

@@ -28,7 +28,7 @@
  * Function to format a DATE_TIME vale. Required parameter is the DATE_TIME value to format. First
  * optional parameter is the format to use, using a pattern used by {@link DateTimeFormatter}. If no
  * format is given, the first format defined in the configured formats is used. Second optional
- * parameter is the zone-id to use wit formatting. Default is the configured zone-id.
+ * parameter is the zone-id to use with formatting. Default is the configured zone-id.
  */
 @FunctionParameter(name = "parameters", isVarArg = true)
 public class DateTimeFormatFunction extends AbstractFunction {

src/main/java/com/ezylang/evalex/functions/datetime/DateTimeNewFunction.java

@@ -29,8 +29,8 @@
 import java.util.TimeZone;
 
 /**
- * Creates a new DATE_TIME value with the given parameters. IIf only one parameter is given, it is
- * treated as th time in milliseconds from the epoch of 1970-01-01T00:00:00Z and a corresponding
+ * Creates a new DATE_TIME value with the given parameters. If only one parameter is given, it is
+ * treated as the time in milliseconds from the epoch of 1970-01-01T00:00:00Z and a corresponding
  * date/time value is created. Else, A minimum of three parameters (year, month, day) must be
  * specified. Optionally the hour, minute, second and nanosecond can be specified. If the last
  * parameter is a string value, it is treated as a zone ID. If no zone ID is specified, the

src/main/java/com/ezylang/evalex/functions/datetime/DateTimeParseFunction.java

@@ -17,6 +17,7 @@
 
 import com.ezylang.evalex.EvaluationException;
 import com.ezylang.evalex.Expression;
+import com.ezylang.evalex.config.ExpressionConfiguration;
 import com.ezylang.evalex.data.EvaluationValue;
 import com.ezylang.evalex.data.conversion.DateTimeConverter;
 import com.ezylang.evalex.functions.AbstractFunction;
@@ -31,10 +32,11 @@
 /**
  * Parses a date-time string to a {@link EvaluationValue.DataType#DATE_TIME} value.
  *
- * <p>Optional arguments is the time zone and a list of {@link java.time.format.DateTimeFormatter}
+ * <p>Optional arguments are the time zone and a list of {@link java.time.format.DateTimeFormatter}
  * patterns. Each pattern will be tried to convert the string to a date-time. The first matching
  * pattern will be used. If <code>NULL</code> is specified for the time zone, the currently
- * configured zone is used. If no formatters a
+ * configured zone is used. If no formatter is specified, the function will use the formatters
+ * defined at the {@link ExpressionConfiguration}.
  */
 @FunctionParameter(name = "parameters", isVarArg = true)
 public class DateTimeParseFunction extends AbstractFunction {

src/main/java/com/ezylang/evalex/functions/datetime/DateTimeToEpochFunction.java

@@ -21,7 +21,7 @@
 import com.ezylang.evalex.functions.FunctionParameter;
 import com.ezylang.evalex.parser.Token;
 
-/** Function to convert a DATE_TIME value to milliseconds sind the epoch of 1970-01-01T00:00:00Z. */
+/** Function to convert a DATE_TIME value to milliseconds in the epoch of 1970-01-01T00:00:00Z. */
 @FunctionParameter(name = "value")
 public class DateTimeToEpochFunction extends AbstractFunction {
   @Override

src/main/java/com/ezylang/evalex/functions/datetime/DurationToMillisFunction.java

@@ -21,7 +21,7 @@
 import com.ezylang.evalex.functions.FunctionParameter;
 import com.ezylang.evalex.parser.Token;
 
-/** Converts a DURATION value to teh amount of milliseconds. */
+/** Converts a DURATION value to the amount of milliseconds. */
 @FunctionParameter(name = "value")
 public class DurationToMillisFunction extends AbstractFunction {
   @Override

src/main/java/com/ezylang/evalex/functions/string/StringContains.java

@@ -21,7 +21,7 @@
 import com.ezylang.evalex.functions.FunctionParameter;
 import com.ezylang.evalex.parser.Token;
 
-/** Returns true, if the string contains the substring (case-insensitive). */
+/** Returns true if the string contains the substring (case-insensitive). */
 @FunctionParameter(name = "string")
 @FunctionParameter(name = "substring")
 public class StringContains extends AbstractFunction {

src/main/java/com/ezylang/evalex/parser/Token.java

@@ -23,7 +23,7 @@
 import lombok.Value;
 
 /**
- * A token represents a singe part of an expression, like an operator, number literal, or a brace.
+ * A token represents a single part of an expression, like an operator, number literal, or a brace.
  * Each token has a unique type, a value (its representation) and a position (starting with 1) in
  * the original expression string.
  *