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Overview
Comment:Apply the logic in/around [ec68aaf42536b4fb] to the chat search so that it does not abort, and generate an error log entry, when given characters which fts5 does not like.
Downloads: Tarball | ZIP archive
Timelines: family | ancestors | descendants | both | fts5-chat-search
Files: files | file ages | folders
SHA3-256: b698ba99427d3a530e2d5ea7a64afd84e27074c93980d75a67d8e7bb0e277250
User & Date: stephan 2024-07-03 10:26:35.923
Context
2024-07-03
12:38
Add /chat history search. ... (check-in: fc853823b2 user: stephan tags: trunk)
10:26
Apply the logic in/around [ec68aaf42536b4fb] to the chat search so that it does not abort, and generate an error log entry, when given characters which fts5 does not like. ... (Closed-Leaf check-in: b698ba9942 user: stephan tags: fts5-chat-search)
2024-07-02
12:04
Chat help text cleanups and add a FIXME regarding connection failure (as opposed to HTTP-level errors) while polling for new chat messages (which is not a new problem, but is one which came up while working on fts5-chat-search). ... (check-in: 4711a8c4dd user: stephan tags: fts5-chat-search)
Changes
Unified Diff Ignore Whitespace Patch
Changes to src/chat.c.
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      blob_append_sql(&sql,
        "SELECT msgid, datetime(mtime), xfrom, "
        "  xmsg, octet_length(file), fname, fmime, mdel, lmtime "
        "  FROM chat WHERE msgid=+%Q",
        zQuery
      );
    }else{

      blob_append_sql(&sql,
        "SELECT * FROM ("
        "SELECT c.msgid, datetime(c.mtime), c.xfrom, "
        "  highlight(chatfts1, 0, '<span class=\"match\">', '</span>'), "
        "  octet_length(c.file), c.fname, c.fmime, c.mdel, c.lmtime "
        "  FROM chatfts1(%Q) f, chat c "
        "  WHERE f.rowid=c.msgid"
        "  ORDER BY f.rowid DESC LIMIT %d"
        ") ORDER BY 1 ASC", zQuery, nLimit
      );

    }
  }else{
    blob_append_sql(&sql,
        "SELECT msgid, datetime(mtime), xfrom, "
        "  xmsg, octet_length(file), fname, fmime, mdel, lmtime"
        "  FROM chat WHERE msgid>=%d LIMIT %d",
        iFirst, nLimit







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      blob_append_sql(&sql,
        "SELECT msgid, datetime(mtime), xfrom, "
        "  xmsg, octet_length(file), fname, fmime, mdel, lmtime "
        "  FROM chat WHERE msgid=+%Q",
        zQuery
      );
    }else{
      char * zPat = search_simplify_pattern(zQuery);
      blob_append_sql(&sql,
        "SELECT * FROM ("
        "SELECT c.msgid, datetime(c.mtime), c.xfrom, "
        "  highlight(chatfts1, 0, '<span class=\"match\">', '</span>'), "
        "  octet_length(c.file), c.fname, c.fmime, c.mdel, c.lmtime "
        "  FROM chatfts1(%Q) f, chat c "
        "  WHERE f.rowid=c.msgid"
        "  ORDER BY f.rowid DESC LIMIT %d"
        ") ORDER BY 1 ASC", zPat, nLimit
      );
      fossil_free(zPat);
    }
  }else{
    blob_append_sql(&sql,
        "SELECT msgid, datetime(mtime), xfrom, "
        "  xmsg, octet_length(file), fname, fmime, mdel, lmtime"
        "  FROM chat WHERE msgid>=%d LIMIT %d",
        iFirst, nLimit
Changes to src/search.c.
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    blob_appendf(&x," r=%g", r);
    sqlite3_result_text(context, blob_str(&x), -1, fossil_free);
  }
#else
  sqlite3_result_double(context, r);
#endif
}
























/*
** When this routine is called, there already exists a table
**
**       x(label,url,score,id,snip).
**
** label:  The "name" of the document containing the match







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    blob_appendf(&x," r=%g", r);
    sqlite3_result_text(context, blob_str(&x), -1, fossil_free);
  }
#else
  sqlite3_result_double(context, r);
#endif
}

/*
** Expects a search pattern string. Makes a copy of the string,
** replaces all non-alphanum ASCII characters with a space, and
** lower-cases all upper-case ASCII characters. The intent is to avoid
** causing errors in FTS5 searches with inputs which contain AND, OR,
** and symbols like #. The caller is responsible for passing the
** result to fossil_free().
*/
char *search_simplify_pattern(const char * zPattern){
  char *zPat = mprintf("%s",zPattern);
  int i;
  for(i=0; zPat[i]; i++){
    if( (zPat[i]&0x80)==0 && !fossil_isalnum(zPat[i]) ) zPat[i] = ' ';
    if( fossil_isupper(zPat[i]) ) zPat[i] = fossil_tolower(zPat[i]);
  }
  for(i--; i>=0 && zPat[i]==' '; i--){}
  if( i<0 ){
    fossil_free(zPat);
    zPat = mprintf("\"\"");
  }
  return zPat;
}

/*
** When this routine is called, there already exists a table
**
**       x(label,url,score,id,snip).
**
** label:  The "name" of the document containing the match
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** The companion full-scan search routine is search_fullscan().
*/
LOCAL void search_indexed(
  const char *zPattern,       /* The query pattern */
  unsigned int srchFlags      /* What to search over */
){
  Blob sql;
  char *zPat = mprintf("%s",zPattern);
  int i;
  static const char *zSnippetCall;
  if( srchFlags==0 ) return;
  sqlite3_create_function(g.db, "rank", 1, SQLITE_UTF8|SQLITE_INNOCUOUS, 0,
     search_rank_sqlfunc, 0, 0);
  for(i=0; zPat[i]; i++){
    if( (zPat[i]&0x80)==0 && !fossil_isalnum(zPat[i]) ) zPat[i] = ' ';
    if( fossil_isupper(zPat[i]) ) zPat[i] = fossil_tolower(zPat[i]);
  }
  for(i--; i>=0 && zPat[i]==' '; i--){}
  if( i<0 ){
    fossil_free(zPat);
    zPat = mprintf("\"\"");
  }
  blob_init(&sql, 0, 0);
  if( search_index_type(0)==4 ){
    /* If this repo is still using the legacy FTS4 search index, then
    ** the snippet() function is slightly different */
    zSnippetCall = "snippet(ftsidx,'<mark>','</mark>',' ... ',-1,35)";
  }else{
    /* This is the common case - Using newer FTS5 search index */







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** The companion full-scan search routine is search_fullscan().
*/
LOCAL void search_indexed(
  const char *zPattern,       /* The query pattern */
  unsigned int srchFlags      /* What to search over */
){
  Blob sql;
  char *zPat;

  static const char *zSnippetCall;
  if( srchFlags==0 ) return;
  sqlite3_create_function(g.db, "rank", 1, SQLITE_UTF8|SQLITE_INNOCUOUS, 0,
     search_rank_sqlfunc, 0, 0);







  zPat = search_simplify_pattern(zPattern);

  blob_init(&sql, 0, 0);
  if( search_index_type(0)==4 ){
    /* If this repo is still using the legacy FTS4 search index, then
    ** the snippet() function is slightly different */
    zSnippetCall = "snippet(ftsidx,'<mark>','</mark>',' ... ',-1,35)";
  }else{
    /* This is the common case - Using newer FTS5 search index */