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< > BotCompany Repo | #1013521 - javaTokWithExisting

JavaX fragment (include)

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please include function javaTok.
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static List<String> javaTokWithExisting(String s, L<S> existing) {
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  ++javaTok_n;
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  int nExisting = javaTok_opt && existing != null ? existing.size() : 0;
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  ArrayList<String> tok = existing != null ? new ArrayList(nExisting) : new ArrayList();
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  int l = s.length();
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  int i = 0, n = 0;
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  while (i < l) {
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    int j = i;
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    char c, d;
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    // scan for whitespace
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    while (j < l) {
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      c = s.charAt(j);
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      d = j+1 >= l ? '\0' : s.charAt(j+1);
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      if (c == ' ' || c == '\t' || c == '\r' || c == '\n')
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        ++j;
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      else if (c == '/' && d == '*') {
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        do ++j; while (j < l && !s.substring(j, Math.min(j+2, l)).equals("*/"));
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        j = Math.min(j+2, l);
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      } else if (c == '/' && d == '/') {
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        do ++j; while (j < l && "\r\n".indexOf(s.charAt(j)) < 0);
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      } else
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        break;
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    }
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    if (n < nExisting && javaTokWithExisting_isCopyable(existing.get(n), s, i, j))
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      tok.add(existing.get(n));
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    else
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      tok.add(javaTok_substringN(s, i, j));
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    ++n;
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    i = j;
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    if (i >= l) break;
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    c = s.charAt(i);
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    d = i+1 >= l ? '\0' : s.charAt(i+1);
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    // scan for non-whitespace
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    // Special JavaX syntax: 'identifier
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    if (c == '\'' && Character.isJavaIdentifierStart(d) && i+2 < l && "'\\".indexOf(s.charAt(i+2)) < 0) {
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      j += 2;
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      while (j < l && Character.isJavaIdentifierPart(s.charAt(j)))
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        ++j;
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    } else if (c == '\'' || c == '"') {
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      char opener = c;
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      ++j;
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      while (j < l) {
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        if (s.charAt(j) == opener /*|| s.charAt(j) == '\n'*/) { // allow multi-line strings
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          ++j;
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          break;
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        } else if (s.charAt(j) == '\\' && j+1 < l)
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          j += 2;
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        else
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          ++j;
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      }
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    } else if (Character.isJavaIdentifierStart(c))
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      do ++j; while (j < l && (Character.isJavaIdentifierPart(s.charAt(j)) || "'".indexOf(s.charAt(j)) >= 0)); // for stuff like "don't"
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    else if (Character.isDigit(c)) {
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      do ++j; while (j < l && Character.isDigit(s.charAt(j)));
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      if (j < l && s.charAt(j) == 'L') ++j; // Long constants like 1L
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    } else if (c == '[' && d == '[') {
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      do ++j; while (j+1 < l && !s.substring(j, j+2).equals("]]"));
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      j = Math.min(j+2, l);
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    } else if (c == '[' && d == '=' && i+2 < l && s.charAt(i+2) == '[') {
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      do ++j; while (j+2 < l && !s.substring(j, j+3).equals("]=]"));
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      j = Math.min(j+3, l);
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    } else
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      ++j;
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    if (n < nExisting && javaTokWithExisting_isCopyable(existing.get(n), s, i, j))
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      tok.add(existing.get(n));
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    else
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      tok.add(javaTok_substringC(s, i, j));
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    ++n;
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    i = j;
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  }
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  if ((tok.size() % 2) == 0) tok.add("");
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  javaTok_elements += tok.size();
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  return tok;
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}
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static bool javaTokWithExisting_isCopyable(S t, S s, int i, int j) {
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  ret t.length() == j-i
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    && s.regionMatches(i, t, 0, j-i); // << could be left out, but that's brave
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}

Author comment

Began life as a copy of #1000688

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Snippet ID: #1013521
Snippet name: javaTokWithExisting
Eternal ID of this version: #1013521/4
Text MD5: aac89d3011d1086fa365589204239426
Author: stefan
Category:
Type: JavaX fragment (include)
Public (visible to everyone): Yes
Archived (hidden from active list): No
Created/modified: 2018-01-08 03:16:17
Source code size: 2975 bytes / 88 lines
Pitched / IR pitched: No / No
Views / Downloads: 292 / 334
Version history: 3 change(s)
Referenced in: [show references]