Fossil

Diff
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Differences From Artifact [eced625f40]:

To Artifact [e5eab7694b]:


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*/
char *interwiki_url(const char *zTarget){
  int nCode;
  int i;
  const char *zPage;
  int nPage;
  char *zUrl = 0;
  char *zName;
  Stmt q;
  static Stmt q;
  for(i=0; fossil_isalnum(zTarget[i]); i++){}
  if( zTarget[i]!=':' ) return 0;
  nCode = i;
  if( nCode==4 && strncmp(zTarget,"wiki",4)==0 ) return 0;
  zPage = zTarget + nCode + 1;
  nPage = (int)strlen(zPage);
  db_prepare(&q, 
  db_static_prepare(&q, 
     "SELECT json_extract(value,'$.base'),"
           " json_extract(value,'$.hash'),"
           " json_extract(value,'$.wiki')"
     " FROM config WHERE name=lower('interwiki:%.*q')",
     nCode, zTarget);
     " FROM config WHERE name=lower($name)"
  );
  zName = mprintf("interwiki:%.*s", nCode, zTarget);
  db_bind_text(&q, "$name", zName);
  while( db_step(&q)==SQLITE_ROW ){
    const char *zBase = db_column_text(&q,0);
    if( zBase==0 || zBase[0]==0 ) break;
    if( nPage==0 || zPage[0]=='/' ){
      /* Path */
      zUrl = mprintf("%s%s", zBase, zPage);
    }else if( nPage>=4 && validate16(zPage,nPage) ){
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      const char *zWiki = db_column_text(&q,2);
      if( zWiki && zWiki[0] ){
        zUrl = mprintf("%s%s%s", zBase, zWiki, zPage);
      }
    }
    break;
  }
  db_finalize(&q);
  db_reset(&q);
  free(zName);
  return zUrl;
}

/*
** If hyperlink target zTarget begins with an interwiki tag that ought
** to be excluded from display, then return the number of characters in
** that tag.