Fossil

void help_page(void){
    const char * zCmd = P("cmd");
    
    style_header("Command line help %s%s",zCmd?" - ":"",zCmd?zCmd:"");
    if( zCmd ){
      int rc, idx;

      @ <h1>%s(zCmd)</h1>
      rc = name_search(zCmd, aCommand, count(aCommand), &idx);
      if( rc==1 ){
        @ <h1>%s(zCmd)</h1>
        @ unknown command: %s(zCmd)
      }else if( rc==2 ){
        @ <h1>%s(zCmd)</h1>
        @ ambiguous command prefix: %s(zCmd)
      }else{
        char *zSrc, *zDest;
        int src,dest,len;

        @ <h1>%s(aCommand[idx].zName)</h1>
        zSrc = (char*)aCmdHelp[idx];
        if( zSrc==0 || *zSrc==0 ){
          @ no help available for the %s(aCommand[idx].zName) command
        }else{
          len = strlen(zSrc);
          zDest = malloc(len+1);
          for(src=dest=0;zSrc[src];){