-//\r
-// This software is now distributed according to\r
-// the Lesser Gnu Public License. Please see\r
-// http://www.gnu.org/copyleft/lesser.txt for\r
-// the details.\r
-// -- Happy Computing!\r
-//\r
-package com.stevesoft.pat;\r
-\r
-import java.util.*;\r
-\r
-/** If Multi were not split into a second stage, then\r
- a nested Multi would try to re-use the same count\r
- variable and the whole thing would break. */\r
-class Multi_stage2\r
- extends PatternSub\r
-{\r
- Pattern nextRet;\r
- patInt count;\r
- patInt matchMin, matchMax;\r
- public boolean matchFewest = false;\r
- public String toString()\r
- {\r
- String ret = "";\r
- ret += sub.toString();\r
- ret += "{" + matchMin + "," + matchMax + "}";\r
- if (matchFewest)\r
- {\r
- ret += "?";\r
- }\r
- ret += parent.nextString();\r
- return ret;\r
- }\r
-\r
- Multi_stage2(patInt a, patInt b, Pattern p)\r
- throws RegSyntax\r
- {\r
- if (p == null)\r
- {\r
- RegSyntaxError.endItAll(\r
- "Multiple match of Null pattern requested.");\r
- }\r
- sub = p;\r
- nextRet = this;\r
- sub.setParent(this);\r
- matchMin = a;\r
- matchMax = b;\r
- count = new patInt(0);\r
- // we must have b > a > -1 for this\r
- // to make sense.\r
- if (!a.lessEq(b))\r
- {\r
- //throw new BadMultiArgs();\r
- RegSyntaxError.endItAll("Bad Multi Args: " + a + ">" + b);\r
- }\r
- patInt i = new patInt( -1);\r
- if (a.lessEq(i))\r
- {\r
- //throw new BadMultiArgs();\r
- RegSyntaxError.endItAll("Bad Multi Args: " + a + "< 0");\r
- }\r
- }\r
-\r
- public Pattern getNext()\r
- {\r
- return nextRet;\r
- }\r
-\r
- int pos_old = -1;\r
- public int matchInternal(int pos, Pthings pt)\r
- {\r
- sub.setParent(this);\r
-\r
- int canUse = -1;\r
-\r
- // check for some forms of infinite recursion...\r
- if (pos_old >= 0 && pos == pos_old)\r
- {\r
- return -1;\r
- }\r
- pos_old = pos;\r
-\r
- if (matchMin.lessEq(count))\r
- {\r
- canUse = pos;\r
- }\r
- if (!count.lessEq(matchMax) || pos > pt.src.length())\r
- {\r
- return -1;\r
- }\r
-\r
- if ( (matchFewest || count.equals(matchMax)) && canUse >= 0)\r
- {\r
- Pattern n = super.getNext();\r
- if (n == null)\r
- {\r
- return canUse;\r
- }\r
- int ret = testMatch(n, pos, pt);\r
- if (ret >= 0)\r
- {\r
- return ret;\r
- }\r
- else\r
- {\r
- canUse = -1;\r
- }\r
- }\r
-\r
- count.inc();\r
- try\r
- {\r
- if (count.lessEq(matchMax))\r
- {\r
- int r = testMatch(sub, pos, pt);\r
- if (r >= 0)\r
- {\r
- return r;\r
- }\r
- }\r
- }\r
- finally\r
- {\r
- count.dec();\r
- }\r
-\r
- if (!matchFewest && canUse >= 0)\r
- {\r
- Pattern n = super.getNext();\r
- if (n == null)\r
- {\r
- return canUse;\r
- }\r
- int ret = testMatch(n, pos, pt);\r
- return ret;\r
- }\r
- else\r
- {\r
- return canUse;\r
- }\r
- }\r
-\r
- public Pattern clone1(Hashtable h)\r
- {\r
- try\r
- {\r
- Multi_stage2 m = new Multi_stage2(matchMin, matchMax, sub.clone(h));\r
- m.matchFewest = matchFewest;\r
- return m;\r
- }\r
- catch (RegSyntax rs)\r
- {\r
- return null;\r
- }\r
- }\r
-};\r
+//
+// This software is now distributed according to
+// the Lesser Gnu Public License. Please see
+// http://www.gnu.org/copyleft/lesser.txt for
+// the details.
+// -- Happy Computing!
+//
+package com.stevesoft.pat;
+
+import java.util.*;
+
+/**
+ * If Multi were not split into a second stage, then a nested Multi would try to
+ * re-use the same count variable and the whole thing would break.
+ */
+class Multi_stage2 extends PatternSub
+{
+ Pattern nextRet;
+
+ patInt count;
+
+ patInt matchMin, matchMax;
+
+ public boolean matchFewest = false;
+
+ public String toString()
+ {
+ String ret = "";
+ ret += sub.toString();
+ ret += "{" + matchMin + "," + matchMax + "}";
+ if (matchFewest)
+ {
+ ret += "?";
+ }
+ ret += parent.nextString();
+ return ret;
+ }
+
+ Multi_stage2(patInt a, patInt b, Pattern p) throws RegSyntax
+ {
+ if (p == null)
+ {
+ RegSyntaxError.endItAll("Multiple match of Null pattern requested.");
+ }
+ sub = p;
+ nextRet = this;
+ sub.setParent(this);
+ matchMin = a;
+ matchMax = b;
+ count = new patInt(0);
+ // we must have b > a > -1 for this
+ // to make sense.
+ if (!a.lessEq(b))
+ {
+ // throw new BadMultiArgs();
+ RegSyntaxError.endItAll("Bad Multi Args: " + a + ">" + b);
+ }
+ patInt i = new patInt(-1);
+ if (a.lessEq(i))
+ {
+ // throw new BadMultiArgs();
+ RegSyntaxError.endItAll("Bad Multi Args: " + a + "< 0");
+ }
+ }
+
+ public Pattern getNext()
+ {
+ return nextRet;
+ }
+
+ int pos_old = -1;
+
+ public int matchInternal(int pos, Pthings pt)
+ {
+ sub.setParent(this);
+
+ int canUse = -1;
+
+ // check for some forms of infinite recursion...
+ if (pos_old >= 0 && pos == pos_old)
+ {
+ return -1;
+ }
+ pos_old = pos;
+
+ if (matchMin.lessEq(count))
+ {
+ canUse = pos;
+ }
+ if (!count.lessEq(matchMax) || pos > pt.src.length())
+ {
+ return -1;
+ }
+
+ if ((matchFewest || count.equals(matchMax)) && canUse >= 0)
+ {
+ Pattern n = super.getNext();
+ if (n == null)
+ {
+ return canUse;
+ }
+ int ret = testMatch(n, pos, pt);
+ if (ret >= 0)
+ {
+ return ret;
+ }
+ else
+ {
+ canUse = -1;
+ }
+ }
+
+ count.inc();
+ try
+ {
+ if (count.lessEq(matchMax))
+ {
+ int r = testMatch(sub, pos, pt);
+ if (r >= 0)
+ {
+ return r;
+ }
+ }
+ } finally
+ {
+ count.dec();
+ }
+
+ if (!matchFewest && canUse >= 0)
+ {
+ Pattern n = super.getNext();
+ if (n == null)
+ {
+ return canUse;
+ }
+ int ret = testMatch(n, pos, pt);
+ return ret;
+ }
+ else
+ {
+ return canUse;
+ }
+ }
+
+ public Pattern clone1(Hashtable h)
+ {
+ try
+ {
+ Multi_stage2 m = new Multi_stage2(matchMin, matchMax, sub.clone(h));
+ m.matchFewest = matchFewest;
+ return m;
+ } catch (RegSyntax rs)
+ {
+ return null;
+ }
+ }
+};
git://source.jalview.org / jalview.git / blobdiff