diff options
Diffstat (limited to 'BJC-Utils2')
| -rw-r--r-- | BJC-Utils2/pom.xml | 1 | ||||
| -rw-r--r-- | BJC-Utils2/src/main/java/bjc/utils/funcutils/LambdaLock.java | 98 | ||||
| -rw-r--r-- | BJC-Utils2/src/main/java/bjc/utils/parserutils/TokenUtils.java | 118 |
3 files changed, 160 insertions, 57 deletions
diff --git a/BJC-Utils2/pom.xml b/BJC-Utils2/pom.xml index cd87424..78c251d 100644 --- a/BJC-Utils2/pom.xml +++ b/BJC-Utils2/pom.xml @@ -17,6 +17,7 @@ <directory>data/</directory> <includes> <include>**/*.txt</include> + <include>**/*.sprop</include> </includes> </resource> </resources> diff --git a/BJC-Utils2/src/main/java/bjc/utils/funcutils/LambdaLock.java b/BJC-Utils2/src/main/java/bjc/utils/funcutils/LambdaLock.java new file mode 100644 index 0000000..a021e83 --- /dev/null +++ b/BJC-Utils2/src/main/java/bjc/utils/funcutils/LambdaLock.java @@ -0,0 +1,98 @@ +package bjc.utils.funcutils; + +import java.util.concurrent.locks.Lock; +import java.util.concurrent.locks.ReadWriteLock; +import java.util.function.Supplier; + +/** + * A wrapper around a {@link ReadWriteLock} to ensure that the lock is used + * properly. + * + * @author EVE + * + */ +public class LambdaLock { + private Lock readLock; + private Lock writeLock; + + /** + * Create a new lambda-enabled lock. + * + * @param lck + * The lock to wrap. + */ + public LambdaLock(ReadWriteLock lck) { + readLock = lck.readLock(); + writeLock = lck.writeLock(); + } + + /** + * Execute an action with the read lock taken. + * + * @param supp + * The action to call. + * + * @return The result of the action. + */ + public <T> T read(Supplier<T> supp) { + readLock.lock(); + + try { + return supp.get(); + } finally { + readLock.unlock(); + } + } + + /** + * Execute an action with the write lock taken. + * + * @param supp + * The action to call. + * + * @return The result of the action. + */ + public <T> T write(Supplier<T> supp) { + writeLock.lock(); + + try { + return supp.get(); + } finally { + writeLock.unlock(); + } + } + + /** + * Execute an action with the read lock taken. + * + * @param action + * The action to call. + * + * @return The result of the action. + */ + public void read(Runnable action) { + readLock.lock(); + + try { + action.run(); + } finally { + readLock.unlock(); + } + } + + /** + * Execute an action with the write lock taken. + * + * @param action + * The action to call. + */ + public void write(Runnable action) { + writeLock.lock(); + + try { + action.run(); + } finally { + writeLock.unlock(); + } + } +}
\ No newline at end of file diff --git a/BJC-Utils2/src/main/java/bjc/utils/parserutils/TokenUtils.java b/BJC-Utils2/src/main/java/bjc/utils/parserutils/TokenUtils.java index 4b8cde1..065aa2b 100644 --- a/BJC-Utils2/src/main/java/bjc/utils/parserutils/TokenUtils.java +++ b/BJC-Utils2/src/main/java/bjc/utils/parserutils/TokenUtils.java @@ -5,6 +5,10 @@ import java.util.List; import java.util.regex.Matcher;
import java.util.regex.Pattern;
+import static bjc.utils.PropertyDB.getRegex;
+import static bjc.utils.PropertyDB.getCompiledRegex;
+import static bjc.utils.PropertyDB.applyFormat;
+
/**
* Utilities useful for operating on PL tokens.
*
@@ -15,41 +19,37 @@ public class TokenUtils { /*
* This regex matches potential single character escape sequences.
*/
- private static Pattern possibleEscape = Pattern.compile("\\\\.");
+ private static Pattern possibleEscape = getCompiledRegex("possibleStringEscape");
+
+ private static String shortEscape = getRegex("shortFormStringEscape");
+ private static String octalEscape = getRegex("octalStringEscape");
+ private static String unicodeEscape = getRegex("unicodeStringEscape");
+
/*
* This regex matches java-style string escapes
*/
- private static String escapeString = "\\\\([btnfr\"'\\\\]" // Match
- // shortform
- // escape
- // sequences
- // like \t or \"
- + "|[0-3]?[0-7]{1,2}" // Match octal escape sequences
- + "|u[0-9a-fA-F]{4})"; // Match unicode escape sequences
+ private static String escapeString = applyFormat("stringEscape", shortEscape, octalEscape, unicodeEscape);
private static Pattern escapePatt = Pattern.compile(escapeString);
/*
- * This regular expression matches java style double quoted strings
+ * The regular expression does the following, making sure to capture the
+ * string contents.
+ *
+ * Match one or more characters that aren't quotes or slashes.
+ *
+ * Match escape sequences.
+ *
+ * Match all of those things zero or more times, followed by a closing
+ * quote
*/
- private static Pattern doubleQuotePatt = Pattern.compile("(\"(" + "[^\\\\\"]+" // Match
- // one
- // or
- // more
- // characters
- // that
- // aren't
- // quotes
- // or
- // slashes
- + "|" + escapeString + ")" // Match escape sequences
- + "*\")"); // Match all of those things zero or more times, followed
- // by a closing quote
+ private static Pattern doubleQuotePatt = Pattern
+ .compile("(\"(" + getRegex("nonEscape") + "|" + escapeString + ")*\")");
/*
* This regular expression matches non-escaped quotes.
*/
- private static Pattern quotePatt = Pattern.compile("(?<!\\\\)\"");
+ private static Pattern quotePatt = getCompiledRegex("unescapedQuote");
/**
* Remove double quoted strings from a string.
@@ -57,13 +57,13 @@ public class TokenUtils { * Splits a string around instances of java-style double-quoted strings.
*
* @param inp
- * The string to split.
+ * The string to split.
*
* @return An list containing alternating bits of the string and the
* embedded double-quoted strings that separated them.
*/
public static List<String> removeDQuotedStrings(String inp) {
- if (inp == null) {
+ if(inp == null) {
throw new NullPointerException("inp must not be null");
}
@@ -79,23 +79,24 @@ public class TokenUtils { Matcher mt = doubleQuotePatt.matcher(inp);
Matcher corr = quotePatt.matcher(inp);
- if (corr.find() && !corr.find()) {
+ if(corr.find() && !corr.find()) {
/*
* There's a unmatched opening quote with no strings.
*/
- throw new IllegalArgumentException(String
- .format("Unclosed string literal '%s'. Opening quote was at position %d", inp, inp.indexOf("\"")));
+ throw new IllegalArgumentException(
+ String.format("Unclosed string literal '%s'. Opening quote was at position %d",
+ inp, inp.indexOf("\"")));
}
- while (mt.find()) {
+ while(mt.find()) {
/*
* Remove the string until the quoted string.
*/
mt.appendReplacement(work, "");
/*
- * Add the string preceeeding the double-quoted string and the
- * double-quoted string to the list.
+ * Add the string preceeeding the double-quoted string
+ * and the double-quoted string to the list.
*/
res.add(work.toString());
res.add(mt.group(1));
@@ -112,18 +113,20 @@ public class TokenUtils { mt.appendTail(work);
String tail = work.toString();
- if (tail.contains("\"")) {
+ if(tail.contains("\"")) {
/*
- * There's a unmatched opening quote with at least one string.
+ * There's a unmatched opening quote with at least one
+ * string.
*/
- throw new IllegalArgumentException(String.format(
- "Unclosed string literal '%s'. Opening quote was at position %d", inp, inp.lastIndexOf("\"")));
+ throw new IllegalArgumentException(
+ String.format("Unclosed string literal '%s'. Opening quote was at position %d",
+ inp, inp.lastIndexOf("\"")));
}
/*
* Only add an empty tail if the string was empty.
*/
- if (!tail.equals("") || res.isEmpty()) {
+ if(!tail.equals("") || res.isEmpty()) {
res.add(tail);
}
@@ -134,13 +137,13 @@ public class TokenUtils { * Replace escape characters with their actual equivalents.
*
* @param inp
- * The string to replace escape sequences in.
+ * The string to replace escape sequences in.
*
* @return The string with escape sequences replaced by their equivalent
* characters.
*/
public static String descapeString(String inp) {
- if (inp == null) {
+ if(inp == null) {
throw new NullPointerException("inp must not be null");
}
@@ -149,16 +152,17 @@ public class TokenUtils { Matcher possibleEscapeFinder = possibleEscape.matcher(inp);
Matcher escapeFinder = escapePatt.matcher(inp);
- while (possibleEscapeFinder.find()) {
- if (!escapeFinder.find()) {
- throw new IllegalArgumentException(
- String.format("Illegal escape sequence '%s' at position %d", possibleEscapeFinder.group(), possibleEscapeFinder.start()));
+ while(possibleEscapeFinder.find()) {
+ if(!escapeFinder.find()) {
+ throw new IllegalArgumentException(String.format(
+ "Illegal escape sequence '%s' at position %d",
+ possibleEscapeFinder.group(), possibleEscapeFinder.start()));
}
String escapeSeq = escapeFinder.group();
String escapeRep = "";
- switch (escapeSeq) {
+ switch(escapeSeq) {
case "\\b":
escapeRep = "\b";
break;
@@ -188,7 +192,7 @@ public class TokenUtils { escapeRep = "\\";
break;
default:
- if (escapeSeq.startsWith("u")) {
+ if(escapeSeq.startsWith("u")) {
escapeRep = handleUnicodeEscape(escapeSeq.substring(1));
} else {
escapeRep = handleOctalEscape(escapeSeq);
@@ -208,7 +212,7 @@ public class TokenUtils { int codepoint = Integer.parseInt(seq, 16);
return new String(Character.toChars(codepoint));
- } catch (IllegalArgumentException iaex) {
+ } catch(IllegalArgumentException iaex) {
IllegalArgumentException reiaex = new IllegalArgumentException(
String.format("'%s' is not a valid Unicode escape sequence'", seq));
@@ -222,13 +226,13 @@ public class TokenUtils { try {
int codepoint = Integer.parseInt(seq, 8);
- if (codepoint > 255) {
- throw new IllegalArgumentException(
- String.format("'%d' is outside the range of octal escapes', codepoint"));
+ if(codepoint > 255) {
+ throw new IllegalArgumentException(String
+ .format("'%d' is outside the range of octal escapes', codepoint"));
}
return new String(Character.toChars(codepoint));
- } catch (IllegalArgumentException iaex) {
+ } catch(IllegalArgumentException iaex) {
IllegalArgumentException reiaex = new IllegalArgumentException(
String.format("'%s' is not a valid octal escape sequence'", seq));
@@ -239,11 +243,11 @@ public class TokenUtils { }
/**
- * Check if a given string would be successfully converted to a double by
- * {@link Double#parseDouble(String)}.
+ * Check if a given string would be successfully converted to a double
+ * by {@link Double#parseDouble(String)}.
*
* @param inp
- * The string to check.
+ * The string to check.
* @return Whether the string is a valid double or not.
*/
public static boolean isDouble(String inp) {
@@ -253,14 +257,14 @@ public class TokenUtils { private static Pattern intLitPattern = Pattern.compile("\\A[+\\-]?\\d+\\Z");
/**
- * Check if a given string would be successfully converted to a integer by
- * {@link Integer#parseInt(String)}.
+ * Check if a given string would be successfully converted to a integer
+ * by {@link Integer#parseInt(String)}.
*
- * NOTE: This only checks syntax. Using values out of the range of integers
- * will still cause errors.
+ * NOTE: This only checks syntax. Using values out of the range of
+ * integers will still cause errors.
*
* @param inp
- * The input to check.
+ * The input to check.
* @return Whether the string is a valid double or not.
*/
public static boolean isInt(String inp) {
|