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-rw-r--r--src/main/java/bjc/replpair/ReplPair.java531
1 files changed, 531 insertions, 0 deletions
diff --git a/src/main/java/bjc/replpair/ReplPair.java b/src/main/java/bjc/replpair/ReplPair.java
new file mode 100644
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--- /dev/null
+++ b/src/main/java/bjc/replpair/ReplPair.java
@@ -0,0 +1,531 @@
+package bjc.replpair;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Scanner;
+
+import java.util.function.UnaryOperator;
+
+/**
+ * String pairs for replacements.
+ *
+ * @author Ben Culkin
+ */
+public class ReplPair implements Comparable<ReplPair>, UnaryOperator<String> {
+ private int lno;
+
+ /**
+ * The priority for this replacement.
+ */
+ public int priority;
+
+ /**
+ * The name of this replacement.
+ *
+ * Defaults to the 'find' string.
+ */
+ public String name;
+ /**
+ * The string to look for.
+ */
+ public String find;
+
+ /**
+ * The string to replace it with.
+ */
+ public String replace;
+
+ private StageStatus stat = StageStatus.BOTH;
+
+ /**
+ * Create a new blank replacement pair.
+ */
+ public ReplPair() {
+ this("", "", 1, null);
+ }
+
+ /**
+ * Create a new replacement pair with a priority of 1.
+ *
+ * @param f
+ * The string to find.
+ * @param r
+ * The string to replace.
+ */
+ public ReplPair(String f, String r) {
+ this(f, r, 1);
+ }
+
+ /**
+ * Create a new named replacement pair with a priority of 1.
+ *
+ * @param f
+ * The string to find.
+ * @param r
+ * The string to replace.
+ * @param n
+ * The name of the replacement pair.
+ */
+ public ReplPair(String f, String r, String n) {
+ this(f, r, 1, n);
+ }
+
+ /**
+ * Create a new replacement pair with a set priority.
+ *
+ * @param f
+ * The string to find.
+ * @param r
+ * The string to replace.
+ * @param p
+ * The priority for the replacement.
+ */
+ public ReplPair(String f, String r, int p) {
+ this(f, r, p, f);
+ }
+
+ /**
+ * Create a new replacement pair with a set priority and name.
+ *
+ * @param f
+ * The string to find.
+ * @param r
+ * The string to replace.
+ * @param n
+ * The name of the replacement pair.
+ * @param p
+ * The priority for the replacement.
+ */
+ public ReplPair(String f, String r, int p, String n) {
+ find = f;
+ replace = r;
+
+ name = n;
+
+ priority = p;
+ }
+ /**
+ * Read a list of replacement pairs from an input source.
+ *
+ * @param scn
+ * The source to read the replacements from.
+ * @return
+ * The list of replacements.
+ */
+ public static List<ReplPair> readList(Scanner scn) {
+ List<ReplPair> lst = new ArrayList<>();
+
+ return readList(lst, scn);
+ }
+
+ /**
+ * Read a list of replacement pairs from an input source, adding them to
+ * an existing list.
+ *
+ * @param detals
+ * The list to add the replacements to.
+ * @param scn
+ * The source to read the replacements from.
+ * @return
+ * The list of replacements.
+ */
+ public static List<ReplPair> readList(List<ReplPair> detals, Scanner scn) {
+ List<ReplError> errList = new ArrayList<>();
+
+ List<ReplPair> rplPar = readList(detals, scn, errList);
+
+ if (errList.size() != 0) {
+ String errString;
+ if (errList.size() == 0) errString = "An error";
+ else errString = "Errors";
+
+ throw new IllegalArgumentException(String.format("%s occured parsing replacement pairs:\n%s", errString, errList));
+ }
+
+ return rplPar;
+ }
+
+ /**
+ * Read a list of replacement pairs from an input source, adding them to
+ * an existing list.
+ *
+ * @param detals
+ * The list to add the replacements to.
+ * @param scn
+ * The source to read the replacements from.
+ * @param errs
+ * The list to stick errors in.
+ * @return
+ * The list of replacements.
+ */
+ public static List<ReplPair> readList(List<ReplPair> detals, Scanner scn, List<ReplError> errs) {
+ int lno = 0;
+ int pno = 0;
+
+ int defPrior = 1;
+ int defStage = 1;
+
+ boolean defMulti = false;
+
+ StageStatus defStatus = StageStatus.BOTH;
+
+ List<List<ReplPair>> stages = new ArrayList<>();
+ stages.add(new ArrayList<ReplPair>());
+
+ // For every line in the source...
+ while (scn.hasNextLine()) {
+ String name = scn.nextLine().trim();
+ lno += 1;
+
+ // If its commented or blank, skip it
+ if (name.equals("")) continue;
+ if (name.startsWith("#")) continue;
+
+ // Global control. Process it.
+ if (name.startsWith("|//")) {
+ name = name.substring(3);
+
+ // Split out each control
+ String[] bits = name.split(";");
+
+ for (String bit : bits) {
+ String bitHead = bit.toUpperCase();
+ String bitBody = bit;
+
+ int idx = bit.indexOf('/');
+ if (idx != -1) {
+ bitHead = bit.substring(0, idx).toUpperCase();
+ bitBody = bit.substring(idx + 1);
+ }
+
+ switch (bitHead) {
+ case "P":
+ try {
+ defPrior = Integer.parseInt(bitBody);
+ } catch (NumberFormatException nfex) {
+ String errMsg = String.format("'%s' is not a valid priority (must be an integer)", bitBody);
+ errs.add(new ReplError(lno, pno, errMsg, name));
+ }
+ break;
+ case "S":
+ try {
+ int tmpStage = Integer.parseInt(bitBody);
+ if (tmpStage < 0) {
+ String errMsg = String.format("'%s' is not a valid stage (must be a positive integer)", bitBody);
+ errs.add(new ReplError(lno, pno, errMsg, name));
+
+ break;
+ }
+ defStage = tmpStage;
+ } catch (NumberFormatException nfex) {
+ String errMsg = String.format("'%s' is not a valid stage (must be a positive integer)", bitBody);
+ errs.add(new ReplError(lno, pno, errMsg, name));
+ }
+ break;
+ case "MT":
+ defMulti = true;
+ break;
+ case "MF":
+ defMulti = false;
+ break;
+ case "M":
+ defMulti = Boolean.parseBoolean(bitBody);
+ break;
+ case "I":
+ defStatus = StageStatus.INTERNAL;
+ break;
+ case "E":
+ defStatus = StageStatus.EXTERNAL;
+ break;
+ case "B":
+ defStatus = StageStatus.BOTH;
+ break;
+ default:
+ errs.add(new ReplError(lno, pno, String.format("Invalid control name '%s'", bitHead), name));
+ break;
+ }
+ }
+
+ continue;
+ }
+
+ ReplPair rp = new ReplPair();
+ rp.priority = defPrior;
+ rp.stat = defStatus;
+ rp.lno = lno;
+
+ int stage = defStage;
+
+ boolean isMulti = defMulti;
+
+ // Name has attached controls, process them.
+ if (name.startsWith("//")) {
+ name = name.substring(2);
+
+ int idx = name.indexOf("//");
+ if (idx == -1) {
+ String msg = "Did not find control terminator (//) in name where it should be";
+
+ errs.add(new ReplError(lno, pno, msg, name));
+ continue;
+ }
+
+ String contName = name.substring(0, idx);
+ String actName = name.substring(idx + 2);
+
+ // Split out each control
+ String[] bits = contName.split(";");
+
+ for (String bit : bits) {
+ String bitHead = bit.toUpperCase();
+ String bitBody = bit;
+
+ idx = bit.indexOf('/');
+ if (idx != -1) {
+ bitHead = bit.substring(0, idx).toUpperCase();
+ bitBody = bit.substring(idx + 1);
+ }
+
+ switch (bitHead) {
+ case "N":
+ rp.name = bitBody;
+ break;
+ case "P":
+ try {
+ rp.priority = Integer.parseInt(bitBody);
+ } catch (NumberFormatException nfex) {
+ String errMsg = String.format("'%s' is not a valid priority (must be an integer)", bitBody);
+ errs.add(new ReplError(lno, pno, errMsg, name));
+ }
+ break;
+ case "S":
+ try {
+ int tmpStage = Integer.parseInt(bitBody);
+ if (tmpStage < 0) {
+ String errMsg = String.format("'%s' is not a valid stage (must be a positive integer)", bitBody);
+ errs.add(new ReplError(lno, pno, errMsg, name));
+
+ break;
+ }
+ stage = tmpStage;
+ } catch (NumberFormatException nfex) {
+ String errMsg = String.format("'%s' is not a valid stage (must be a positive integer)", bitBody);
+ errs.add(new ReplError(lno, pno, errMsg, name));
+ }
+ break;
+ case "MT":
+ isMulti = true;
+ break;
+ case "MF":
+ isMulti = false;
+ break;
+ case "M":
+ isMulti = Boolean.parseBoolean(bitBody);
+ break;
+ case "I":
+ rp.stat = StageStatus.INTERNAL;
+ break;
+ case "E":
+ rp.stat = StageStatus.EXTERNAL;
+ break;
+ case "B":
+ rp.stat = StageStatus.BOTH;
+ break;
+ default:
+ errs.add(new ReplError(lno, pno, String.format("Unknown control name '%s'", bitHead), name));
+ break;
+ }
+ }
+
+ // Multi-line name with a trailer
+ if (isMulti) {
+ String tmp = actName;
+
+ while (tmp.endsWith("\\")) {
+ boolean incNL = tmp.endsWith("|\\");
+
+ if (!scn.hasNextLine()) break;
+
+ tmp = scn.nextLine().trim();
+
+ if (tmp.equals("")) continue;
+ if (tmp.startsWith("#")) continue;
+
+ actName = String.format("%s%s%s", actName, incNL ? "\n" : "", tmp);
+ }
+ }
+
+ name = actName;
+ }
+
+ rp.find = name;
+ if (rp.name == null) rp.name = name;
+
+ // We started to process the pair, mark it as being
+ // started
+ pno += 1;
+ String body = null;
+
+ // Read in the next uncommented line
+ do {
+ if (!scn.hasNextLine()) {
+ String msg =
+ "Ran out of input looking for replacement body for raw name " + name;
+
+ errs.add(new ReplError(lno, pno, msg, null));
+ break;
+ }
+
+ body = scn.nextLine().trim();
+ lno += 1;
+ } while (body.startsWith("#"));
+
+ isMulti = defMulti;
+
+ // Body has attached controls, process them.
+ if (body.startsWith("//")) {
+ body = body.substring(2);
+
+ int idx = body.indexOf("//");
+ if (idx == -1) {
+ String msg = "Did not find control terminator (//) in body where it should be";
+
+ errs.add(new ReplError(lno, pno, msg, body));
+ continue;
+ }
+
+ String contBody = body.substring(0, idx);
+ String actBody = body.substring(idx + 2);
+
+ // Split out each control
+ String[] bits = actBody.split(";");
+
+ for (String bit : bits) {
+ String bitHead = bit.toUpperCase();
+ String bitBody = bit;
+
+ idx = bit.indexOf('/');
+ if (idx != -1) {
+ bitHead = bit.substring(0, idx).toUpperCase();
+ bitBody = bit.substring(idx + 1);
+ }
+
+ switch (bitHead) {
+ case "MT":
+ isMulti = true;
+ break;
+ case "MF":
+ isMulti = false;
+ break;
+ case "M":
+ isMulti = Boolean.parseBoolean(bitBody);
+ break;
+ default:
+ errs.add(new ReplError(lno, pno, String.format("Invalid control name '%s'", bitHead), body));
+ break;
+ }
+ }
+
+ // Multi-line name with a trailer
+ if (isMulti) {
+ String tmp = actBody;
+
+ while (tmp.endsWith("\\")) {
+ boolean incNL = tmp.endsWith("|\\");
+
+ if (!scn.hasNextLine()) break;
+
+ tmp = scn.nextLine().trim();
+
+ if (tmp.startsWith("#")) continue;
+
+ actBody = String.format("%s%s%s", actBody, incNL ? "\n" : "", tmp);
+ }
+ }
+
+ body = actBody;
+ }
+
+ rp.replace = body;
+
+ List<ReplPair> stageList;
+ if (stages.size() < stage) {
+ stageList = stages.get(stage);
+
+ if (stageList == null) {
+ stageList = new ArrayList<>();
+ stages.add(stage, stageList);
+ }
+ } else {
+ stageList = new ArrayList<>();
+ stages.add(stage, stageList);
+ }
+
+ stageList.add(rp);
+ }
+
+ // Special-case one-stage processing.
+ if (stages.size() == 1) {
+ detals.addAll(stages.iterator().next());
+
+ detals.sort(null);
+
+ return detals;
+ }
+
+ // Handle stages
+ List<ReplPair> tmpList = new ArrayList<>();
+ tmpList.addAll(detals);
+
+ for (List<ReplPair> stageList : stages) {
+ List<ReplPair> curStage = new ArrayList<>();
+
+ for (ReplPair rp : stageList) {
+ // Process through every pair in the previous
+ // stages
+ for (ReplPair curPar : tmpList) {
+ rp.replace = rp.replace.replaceAll(curPar.find, curPar.replace);
+ }
+
+ // If we're external; add straight to the output
+ if (rp.stat == StageStatus.EXTERNAL) detals.add(rp);
+ else curStage.add(rp);
+ }
+
+ tmpList.addAll(curStage);
+ tmpList.sort(null);
+ }
+
+ // Copy over to output, excluding internals
+ for (ReplPair rp : tmpList) {
+ if (rp.stat == StageStatus.INTERNAL) continue;
+
+ detals.add(rp);
+ }
+
+ detals.sort(null);
+
+ return detals;
+ }
+
+ @Override
+ public String apply(String inp) {
+ return inp.replaceAll(find, replace);
+ }
+
+ @Override
+ public String toString() {
+ String nameStr = "";
+
+ if (!find.equals(name)) nameStr = String.format("(%s)", name);
+
+ return String.format("%ss/%s/%s/p(%d)", nameStr, find, replace, priority);
+ }
+
+ @Override
+ public int compareTo(ReplPair rp) {
+ if (this.priority == rp.priority) return this.lno - rp.lno;
+
+ return rp.priority - this.priority;
+ }
+}
generated by cgit v1.2.3 (git 2.25.1) at 2026-05-10 10:02:34 +0000