HtmlEx: added debug logging

app/src/main/java/eu/faircode/email/HtmlEx.java

@@ -141,15 +141,7 @@ public class HtmlEx {
             int n1 = text.nextSpanTransition(i, end, QuoteSpan.class);
             int n2 = text.nextSpanTransition(i, end, eu.faircode.email.IndentSpan.class);
             next = Math.min(n1, n2);
-            if (next > end) {
-                StringBuilder sb = new StringBuilder();
-                TextUtils.dumpSpans(text, new StringBuilderPrinter(sb), "withinDiv ");
-                sb.append(" next=").append(next);
-                sb.append(" start=").append(start);
-                sb.append(" end=").append(end);
-                eu.faircode.email.Log.e(sb.toString());
-                next = end;
-            }
+            try {
                 List<Object> spans = new ArrayList<>();
                 for (Object span : getSpans(text, i, next, LeadingMarginSpan.class))
                     if (span instanceof QuoteSpan ||
@@ -172,6 +164,11 @@ public class HtmlEx {
                 for (Object span : spans) {
                     out.append("</blockquote>\n");
                 }
+            } catch (Throwable ex) {
+                Log.e("withinDiv " + start + "..." + end + "/" + text.length() +
+                        " i=" + i + " n1=" + n1 + " n2=" + n2);
+                throw ex;
+            }
         }
     }
 
@@ -248,6 +245,7 @@ public class HtmlEx {
         int next;
         for (int i = start; i <= end; i = next) {
             next = TextUtils.indexOf(text, '\n', i, end);
+            try {
                 if (next < 0) {
                     next = end;
                 }
@@ -327,6 +325,11 @@ public class HtmlEx {
                 }
 
                 next++;
+            } catch (Throwable ex) {
+                Log.e("withinBlockquoteIndividual " + start + "..." + end + "/" + text.length() +
+                        " i=" + i + " next=" + next);
+                throw ex;
+            }
         }
     }
 
@@ -371,6 +374,7 @@ public class HtmlEx {
         int next;
         for (int i = start; i < end; i = next) {
             next = text.nextSpanTransition(i, end, CharacterStyle.class);
+            try {
                 CharacterStyle[] style = getSpans(text, i, next, CharacterStyle.class);
 
                 for (int j = 0; j < style.length; j++) {
@@ -521,6 +525,11 @@ public class HtmlEx {
                         }
                     }
                 }
+            } catch (Throwable ex) {
+                Log.e("withinParagraph " + start + "..." + end + "/" + text.length() +
+                        " i=" + i + " next=" + next);
+                throw ex;
+            }
         }
     }
 
@@ -528,6 +537,7 @@ public class HtmlEx {
     private /* static */ void withinStyle(StringBuilder out, CharSequence text,
                                     int start, int end) {
         for (int i = start; i < end; i++) {
+            try {
                 char c = text.charAt(i);
 
                 if (c == '<') {
@@ -557,6 +567,10 @@ public class HtmlEx {
                 } else {
                     out.append(c);
                 }
+            } catch (Throwable ex) {
+                Log.e("withinStyle " + start + "..." + end + "/" + text.length() + " i=" + i);
+                throw ex;
+            }
         }
     }