| 1 | /****************************************************************************** |
| 2 | * |
| 3 | * LDC2 source code |
| 4 | * |
| 5 | * $Date: 2008/10/01 13:30:14 $ |
| 6 | * $Author: hachti $ |
| 7 | * |
| 8 | * $Log: configuration_manager.cpp,v $ |
| 9 | * Revision 2.4 2008/10/01 13:30:14 hachti |
| 10 | * Added some includes |
| 11 | * |
| 12 | * Revision 2.3 2008-08-25 21:02:24 hachti |
| 13 | * *** empty log message *** |
| 14 | * |
| 15 | * Revision 2.2 2007-06-15 12:46:04 hachti |
| 16 | * Some small changes in configuration_manager output - added (c/f) info. |
| 17 | * Changed order in tool.hh:add_unique.... |
| 18 | * |
| 19 | * Revision 2.1 2007-03-26 04:05:37 hachti |
| 20 | * *** empty log message *** |
| 21 | * |
| 22 | * Revision 2.0 2007-03-26 01:00:38 hachti |
| 23 | * *** empty log message *** |
| 24 | * |
| 25 | * |
| 26 | ******************************************************************************/ |
| 27 | |
| 28 | #include "configuration_manager.hh" |
| 29 | #include <stdio.h> |
| 30 | #include <string.h> |
| 31 | #include <stdlib.h> |
| 32 | #include <fcntl.h> |
| 33 | #include <string.h> |
| 34 | |
| 35 | #define MAX_LINE_LENGTH 80 |
| 36 | |
| 37 | /*! |
| 38 | *\brief Constructor. |
| 39 | * |
| 40 | * This constructor makes a new configuration_manager ready to use. |
| 41 | *\arg name Name of the application as mentioned in the |
| 42 | * "Use: <appname> ..." help message. |
| 43 | */ |
| 44 | configuration_manager::configuration_manager(string name){ |
| 45 | app_name=name; |
| 46 | } |
| 47 | |
| 48 | |
| 49 | /*! |
| 50 | *\brief Add a new configuration value to be searched for. |
| 51 | *\param shortname A character for the short form. |
| 52 | * For example the o in -o |
| 53 | *\param longname The double dash longname. For example |
| 54 | * output_file in --output_file= |
| 55 | *\param description A detailed description of the value. |
| 56 | *\param status Pointer to an integer. Will be set to 1 if arg found. |
| 57 | *\param target Pointer to string to put the value in. |
| 58 | *\param placeholder A placeholder for the documentation. |
| 59 | * For example <filename> in -f<filename> |
| 60 | *\param allow_cmdline Specifies if this value may be specified on the |
| 61 | * command line. |
| 62 | *\param allow_conffile Specifies if this value may be specified in a |
| 63 | * configuration file. |
| 64 | * |
| 65 | */ |
| 66 | void configuration_manager::add_option_value (const string & shortname, |
| 67 | const string & longname, |
| 68 | const string & description, |
| 69 | int * status, |
| 70 | string * target, |
| 71 | const string & placeholder, |
| 72 | const bool & allow_cmdline, |
| 73 | const bool & allow_conffile |
| 74 | ){ |
| 75 | |
| 76 | if(status!=NULL) if (target!=NULL) |
| 77 | option_values.insert(option_values.end(), |
| 78 | opt_value_t(shortname, |
| 79 | longname, |
| 80 | description, |
| 81 | status, |
| 82 | target, |
| 83 | placeholder, |
| 84 | allow_cmdline, |
| 85 | allow_conffile |
| 86 | ) |
| 87 | ); |
| 88 | } |
| 89 | |
| 90 | |
| 91 | |
| 92 | /*! |
| 93 | *\brief Add a new configuration switch to be searched for. |
| 94 | *\param shortname A character for the short form. |
| 95 | * For example the h in -h |
| 96 | *\param longname The double dash longname. For example |
| 97 | * help in --help |
| 98 | *\param description A detailed description of the value. |
| 99 | *\param status Pointer to an integer. Will be set to 1 if arg found. |
| 100 | *\param allow_cmdline Specifies whether the switch is acceptable on the |
| 101 | * command line. |
| 102 | *\param allow_conffile Specifies whether the switch is acceptable |
| 103 | * in a configuration file. |
| 104 | */ |
| 105 | void configuration_manager::add_option_switch (const string & shortname, |
| 106 | const string & longname, |
| 107 | const string & description, |
| 108 | int * status, |
| 109 | const bool & allow_cmdline, |
| 110 | const bool & allow_conffile |
| 111 | ){ |
| 112 | |
| 113 | if(status!=NULL) |
| 114 | option_switches.insert(option_switches.end(), |
| 115 | opt_switch_t(shortname, |
| 116 | longname, |
| 117 | description, |
| 118 | status, |
| 119 | allow_cmdline, |
| 120 | allow_conffile) |
| 121 | ); |
| 122 | } |
| 123 | |
| 124 | /*! |
| 125 | *\brief Add an accepted argument to the argument reader. |
| 126 | *\param placeholder Something like "<input-file>". |
| 127 | *\param description Text describing the argument. |
| 128 | *\param status A pointer to a status variable. Will be set to 0 by default. |
| 129 | * If the argument is filled in, it will be set to 1. |
| 130 | *\param target A pointer to a c++ string where the argument goes to. |
| 131 | * |
| 132 | *\note Arguments are filled in the order of adding them to the |
| 133 | * argument reader. |
| 134 | * There would be no other way to determine the order. |
| 135 | */ |
| 136 | void configuration_manager::add_argument(const string & description, |
| 137 | int * status, |
| 138 | string * target, |
| 139 | const string & placeholder){ |
| 140 | |
| 141 | |
| 142 | |
| 143 | if (target!=NULL) if(status!=NULL) |
| 144 | cmd_args.insert(cmd_args.end(),cmd_arg_t(placeholder, |
| 145 | description, |
| 146 | status, |
| 147 | target)); |
| 148 | } |
| 149 | |
| 150 | |
| 151 | /*! |
| 152 | *\brief Read in the args passed to main(). |
| 153 | *\returns empty vector on success or the error messages to be output. |
| 154 | */ |
| 155 | vector<string> configuration_manager::read_args(int argc, char ** args){ |
| 156 | |
| 157 | vector<string> messages; |
| 158 | vector<string> argv; |
| 159 | |
| 160 | // First we make a C++ string vector out of the **argv. |
| 161 | for (char ** akt=args+1; *akt ;akt++) argv.insert(argv.end(),string(*akt)); |
| 162 | |
| 163 | // Counter for the free command line parameters. |
| 164 | unsigned int free_parms_count=0; |
| 165 | |
| 166 | // Loop through the command line arguments |
| 167 | for (unsigned int arg_no=0;arg_no<argv.size();arg_no++){ |
| 168 | bool found=false; |
| 169 | string argstring; |
| 170 | |
| 171 | // Look for long parameters. |
| 172 | // if ((argv[arg_no].substr(0,2)=="--")&&(free_parms_count==0)){ |
| 173 | if ((argv[arg_no].substr(0,2)=="--")){ // Changed for comfort. |
| 174 | argstring=argv[arg_no].substr(2); |
| 175 | |
| 176 | // Look for long switches. |
| 177 | for (unsigned int switch_no=0;switch_no<option_switches.size();switch_no++){ |
| 178 | string switch_name=option_switches[switch_no].longname; |
| 179 | if (argstring.compare(0,switch_name.length(),switch_name,0,switch_name.length())==0){ |
| 180 | string value=analyse_string(argstring); |
| 181 | bool result=analyse_bool(value); |
| 182 | if(option_switches[switch_no].allow_cmdline==true){ |
| 183 | *(option_switches[switch_no].status)=result; |
| 184 | }else{ |
| 185 | messages.insert(messages.end(),"Switch \"--" |
| 186 | +option_switches[switch_no].longname |
| 187 | +"\" is not allowed on the command line!"); |
| 188 | } |
| 189 | found=true; |
| 190 | break; |
| 191 | } |
| 192 | } |
| 193 | |
| 194 | // Look for long values. |
| 195 | for (unsigned int value_no=0;value_no<option_values.size();value_no++){ |
| 196 | string value_name=option_values[value_no].longname; |
| 197 | if (argstring.compare(0,value_name.length(),value_name,0,value_name.length())==0){ |
| 198 | string value=analyse_string(argstring); |
| 199 | if(option_values[value_no].allow_cmdline==true){ |
| 200 | *(option_values[value_no].status)=1; |
| 201 | *(option_values[value_no].target)=value; |
| 202 | }else{ |
| 203 | messages.insert(messages.end(),"Option value \"--" |
| 204 | +option_values[value_no].longname |
| 205 | +"\" is not allowed on the command line!"); |
| 206 | } |
| 207 | found=true; |
| 208 | break; |
| 209 | } |
| 210 | } |
| 211 | if (! found) { |
| 212 | messages.insert(messages.begin(),"Unknown option: --"+argstring+"!"); |
| 213 | found=true; // Oh! |
| 214 | } |
| 215 | } |
| 216 | |
| 217 | // Look for short parameters |
| 218 | // if ((argv[arg_no].substr(0,1)=="-")&&(free_parms_count==0)&&(!found)){ // Short parameters |
| 219 | if ((argv[arg_no].substr(0,1)=="-")&&(!found)){ // Changed for comfort. |
| 220 | found=true; |
| 221 | argstring=argv[arg_no].substr(1); // Reassign, with one more character now |
| 222 | for (unsigned int pos=0;pos < argstring.length();pos++){ |
| 223 | bool short_found=false; |
| 224 | |
| 225 | // First, find short switches |
| 226 | for (unsigned int switch_no=0;switch_no<option_switches.size();switch_no++){ |
| 227 | string short_name=option_switches[switch_no].shortname; |
| 228 | if (short_name.compare(0,short_name.length(),argstring,pos,short_name.length())==0){ |
| 229 | if(option_switches[switch_no].allow_cmdline==true){ |
| 230 | *(option_switches[switch_no].status)=1; |
| 231 | }else{ |
| 232 | messages.insert(messages.end(),"Switch \"-" |
| 233 | +option_switches[switch_no].shortname |
| 234 | +"\" is not allowed on the command line!"); |
| 235 | } |
| 236 | short_found=true; |
| 237 | pos+=short_name.length()-1; |
| 238 | break; |
| 239 | } |
| 240 | } |
| 241 | |
| 242 | // Now, find short values |
| 243 | if (!short_found){ |
| 244 | for (unsigned int value_no=0;value_no<option_values.size();value_no++){ |
| 245 | string short_name=option_values[value_no].shortname; |
| 246 | |
| 247 | if (short_name.compare(0,short_name.length(),argstring,pos,short_name.length())==0){ |
| 248 | if (pos==argstring.length()-1){ // Last character, where's the value? |
| 249 | if (arg_no<argv.size()-1){ // Take next complete argument as value! |
| 250 | *(option_values[value_no].status)=1; |
| 251 | *(option_values[value_no].target)=argv[arg_no+1]; |
| 252 | arg_no+=1; // Consume the next argument |
| 253 | short_found=true; |
| 254 | } else { // No argument left! |
| 255 | messages.insert(messages.begin(),"Missing value for -"+short_name+"!"); |
| 256 | short_found=true; |
| 257 | } |
| 258 | } else { |
| 259 | if(option_values[value_no].allow_cmdline==true){ |
| 260 | *(option_values[value_no].status)=1; |
| 261 | *(option_values[value_no].target)=argstring.substr(pos+1); |
| 262 | }else{ |
| 263 | messages.insert(messages.end(),"Option value \"-" |
| 264 | +option_values[value_no].shortname |
| 265 | +"\" is not allowed on the command line!"); |
| 266 | } |
| 267 | pos=argstring.length(); // Do not analyse other characters. |
| 268 | short_found=true; |
| 269 | break; |
| 270 | } |
| 271 | } |
| 272 | } |
| 273 | } |
| 274 | if (!short_found) messages.insert(messages.begin(),"Unknown Option: -"+argstring.substr(pos,1)+"!"); |
| 275 | } |
| 276 | } |
| 277 | |
| 278 | if (!found) { // Must be a free form parameter... |
| 279 | if (free_parms_count<cmd_args.size()){ // Space available |
| 280 | *(cmd_args[free_parms_count].target)=argv[arg_no]; |
| 281 | *(cmd_args[free_parms_count].status)=1; |
| 282 | free_parms_count++; |
| 283 | } else { // No more space for free form parameters! |
| 284 | messages.insert(messages.begin(),"Too many arguments!"); |
| 285 | } |
| 286 | } |
| 287 | } |
| 288 | if (!messages.empty()){ |
| 289 | messages.insert(messages.begin(),"Error!"); |
| 290 | messages.insert(messages.begin(),""); |
| 291 | } |
| 292 | return messages; |
| 293 | } |
| 294 | |
| 295 | |
| 296 | /*! |
| 297 | *\brief Extract a value from a configuration file line or |
| 298 | * a command line argument |
| 299 | */ |
| 300 | string configuration_manager::analyse_string(const string & line){ |
| 301 | string result=""; |
| 302 | unsigned int pos=line.find("="); |
| 303 | if (pos!=string::npos) result=line.substr(pos+1); |
| 304 | return result; |
| 305 | } |
| 306 | |
| 307 | /*! |
| 308 | *\brief Extract a boolean value out of a string, defaulting to true |
| 309 | * |
| 310 | * Used for commandline switches |
| 311 | */ |
| 312 | bool configuration_manager::analyse_bool(const string & data){ |
| 313 | if ((data.find("false",0)!=string::npos)|| |
| 314 | (data.find("0",0)!=string::npos)|| |
| 315 | (data.find("no",0)!=string::npos)) return false; |
| 316 | else return true; |
| 317 | } |
| 318 | |
| 319 | |
| 320 | /*! |
| 321 | *\brief Extract a boolean value out of a string, defaulting to false |
| 322 | * |
| 323 | * Used for configuration file switches |
| 324 | */ |
| 325 | bool configuration_manager::analyse_bool_false(const string & data){ |
| 326 | if ((data.find("true",0)!=string::npos)|| |
| 327 | (data.find("1",0)!=string::npos)|| |
| 328 | (data.find("yes",0)!=string::npos)) return true; |
| 329 | else return false; |
| 330 | } |
| 331 | |
| 332 | |
| 333 | /*! |
| 334 | *brief Read in and parse a configuration file. |
| 335 | *\arg file String containing the filename |
| 336 | *\return Empty Vector or Vector full of strings containing |
| 337 | * the error message(s). |
| 338 | */ |
| 339 | vector<string> configuration_manager::read_file(string filename){ |
| 340 | vector<string>result; |
| 341 | FILE * fp=fopen(filename.c_str(),"r"); |
| 342 | if (! fp) { |
| 343 | result.insert(result.end(),"Could not open file: "+filename); |
| 344 | } else { |
| 345 | char buffer[1000]; |
| 346 | while(fgets(buffer,1000,fp)){ |
| 347 | if (buffer[strlen(buffer)-1]=='\n')// Cut trailing newline |
| 348 | buffer[strlen(buffer)-1]=0; |
| 349 | if (strlen (buffer)){ |
| 350 | char*l2=buffer+strspn(buffer," \t"); |
| 351 | if (l2[0]!='#'){ |
| 352 | string argstring=l2; |
| 353 | unsigned int pos=argstring.find("="); |
| 354 | if (pos==0){ |
| 355 | result.insert(result.end(),"In File "+filename+": Line beginning with '='!"); |
| 356 | } |
| 357 | |
| 358 | bool found=false; |
| 359 | |
| 360 | // Look for long switches. |
| 361 | for (unsigned int switch_no=0;switch_no<option_switches.size();switch_no++){ |
| 362 | string switch_name=option_switches[switch_no].longname; |
| 363 | if (argstring.compare(0,switch_name.length(),switch_name,0,switch_name.length())==0){ |
| 364 | string value=analyse_string(argstring); |
| 365 | //result.insert(result.end(),"argstring:\""+argstring+"\""); |
| 366 | bool res=analyse_bool_false(value); |
| 367 | if(option_switches[switch_no].allow_conffile==true){ |
| 368 | *(option_switches[switch_no].status)=res; |
| 369 | }else{ |
| 370 | result.insert(result.end(),"In File "+filename+": Switch \"" |
| 371 | +option_switches[switch_no].longname |
| 372 | +"\" is not allowed in config files!"); |
| 373 | } |
| 374 | found=true; |
| 375 | break; |
| 376 | } |
| 377 | } |
| 378 | |
| 379 | // Look for long values. |
| 380 | for (unsigned int value_no=0;value_no<option_values.size();value_no++){ |
| 381 | string value_name=option_values[value_no].longname; |
| 382 | if (argstring.compare(0,value_name.length(),value_name,0,value_name.length())==0){ |
| 383 | string value=analyse_string(argstring); |
| 384 | *(option_values[value_no].status)=1; |
| 385 | |
| 386 | if(option_values[value_no].allow_conffile==true){ |
| 387 | *(option_values[value_no].status)=1; |
| 388 | *(option_values[value_no].target)=value; |
| 389 | }else{ |
| 390 | result.insert(result.end(),"In File "+filename+": Option value \"" |
| 391 | +option_values[value_no].longname |
| 392 | +"\" is not allowed in config files!"); |
| 393 | } |
| 394 | found=true; |
| 395 | break; |
| 396 | } |
| 397 | } |
| 398 | if (! found) { |
| 399 | result.insert(result.end(),"In File "+filename+": Unknown option: "+argstring+"!"); |
| 400 | } |
| 401 | |
| 402 | } // if not # |
| 403 | } // if (strlen()) |
| 404 | } // while(...) |
| 405 | fclose (fp); |
| 406 | } // fp==0 else branch |
| 407 | |
| 408 | if (!result.empty()){ |
| 409 | result.insert(result.begin(),"Error!"); |
| 410 | result.insert(result.begin(),""); |
| 411 | } |
| 412 | return result; |
| 413 | } |
| 414 | |
| 415 | |
| 416 | /*! |
| 417 | *\brief Generate help. |
| 418 | *\arg target Reference to a vector<string> to which lots of helpful |
| 419 | * strings are appended. |
| 420 | */ |
| 421 | void configuration_manager::get_help(vector<string> & target){ |
| 422 | target.insert(target.end(),""); |
| 423 | string line="Usage: "+app_name; |
| 424 | |
| 425 | for (vector<opt_switch_t>::iterator parm_p=option_switches.begin();parm_p<option_switches.end();parm_p++){ |
| 426 | string addstr=" [-"+parm_p->shortname; |
| 427 | addstr+="]"; |
| 428 | if (line.length()+addstr.length()>MAX_LINE_LENGTH){ |
| 429 | target.insert(target.end(),line); |
| 430 | line=string(7+app_name.length(),' '); |
| 431 | } |
| 432 | line+=addstr; |
| 433 | } |
| 434 | |
| 435 | for (vector<opt_value_t>::iterator parm_p=option_values.begin();parm_p<option_values.end();parm_p++){ |
| 436 | string addstr=" [-"+parm_p->shortname; |
| 437 | addstr+=parm_p->placeholder; |
| 438 | addstr+="]"; |
| 439 | if (line.length()+addstr.length()>MAX_LINE_LENGTH){ |
| 440 | target.insert(target.end(),line); |
| 441 | line=string(7+app_name.length(),' '); |
| 442 | } |
| 443 | line+=addstr; |
| 444 | } |
| 445 | |
| 446 | for (vector<cmd_arg_t>::iterator parm_p=cmd_args.begin();parm_p<cmd_args.end();parm_p++){ |
| 447 | if (line.length()+parm_p->placeholder.length()>MAX_LINE_LENGTH){ |
| 448 | target.insert(target.end(),line); |
| 449 | line=string(7+app_name.length(),' '); |
| 450 | } |
| 451 | line+=" ["+parm_p->placeholder+"]"; |
| 452 | } |
| 453 | target.insert(target.end(),line); |
| 454 | |
| 455 | /* Here comes the documentation output. */ |
| 456 | |
| 457 | vector<string> left,right; |
| 458 | unsigned int max_width; |
| 459 | |
| 460 | /* Output switches? */ |
| 461 | if (option_switches.size()){ |
| 462 | target.insert(target.end(),""); |
| 463 | target.insert(target.end(),"Switches:"); |
| 464 | |
| 465 | left=vector<string>(); |
| 466 | right=vector<string>(); |
| 467 | max_width=0; |
| 468 | |
| 469 | /* Now lets insert switches into left and right */ |
| 470 | for (unsigned int sw=0; sw<option_switches.size();sw++){ |
| 471 | opt_switch_t akt_sw=option_switches[sw]; |
| 472 | string rline="(" ; |
| 473 | if (akt_sw.allow_cmdline) rline+="c/"; |
| 474 | else rline+="-/"; |
| 475 | if (akt_sw.allow_conffile) rline+="f)"; |
| 476 | else rline+="-)"; |
| 477 | rline+=" "+akt_sw.description; |
| 478 | string lline="-"+akt_sw.shortname+", --"+akt_sw.longname; |
| 479 | left.insert(left.end(),lline); |
| 480 | right.insert(right.end(),rline); |
| 481 | } |
| 482 | |
| 483 | // Determine maximal width for left column |
| 484 | max_width=0; |
| 485 | for (unsigned int c=0; c<left.size();c++) |
| 486 | if(left[c].length()>max_width) max_width=left[c].length(); |
| 487 | |
| 488 | /* output all the mess */ |
| 489 | for (unsigned int c=0; c<left.size();c++){ |
| 490 | string nl(max_width,' '); |
| 491 | nl.replace(0,left[c].length(),left[c]); |
| 492 | nl+=" "+right[c]; |
| 493 | while (nl.length()>MAX_LINE_LENGTH){ // Too long??? |
| 494 | int limit=nl.find_last_of(' ',MAX_LINE_LENGTH); |
| 495 | target.insert(target.end(),nl.substr(0,limit)); |
| 496 | nl=string(max_width+2+6,' ')+nl.substr(limit+1); |
| 497 | } |
| 498 | target.insert(target.end(),nl); |
| 499 | } |
| 500 | } |
| 501 | |
| 502 | // Output values |
| 503 | if (option_values.size()){ |
| 504 | target.insert(target.end(),""); |
| 505 | target.insert(target.end(),"Option values:"); |
| 506 | |
| 507 | left=vector<string>(); |
| 508 | right=vector<string>(); |
| 509 | max_width=0; |
| 510 | |
| 511 | for (unsigned int val=0; val<option_values.size();val++){ |
| 512 | opt_value_t akt_val=option_values[val]; |
| 513 | string rline="(" ; |
| 514 | if (akt_val.allow_cmdline) rline+="c/"; |
| 515 | else rline+="-/"; |
| 516 | if (akt_val.allow_conffile) rline+="f)"; |
| 517 | else rline+="-)"; |
| 518 | rline+=" "+akt_val.description; |
| 519 | |
| 520 | string lline="-"+akt_val.shortname+akt_val.placeholder+", --"+ |
| 521 | akt_val.longname+"="+akt_val.placeholder; |
| 522 | left.insert(left.end(),lline); |
| 523 | right.insert(right.end(),rline); |
| 524 | } |
| 525 | |
| 526 | // Determine maximal width for left column |
| 527 | for (unsigned int c=0; c<left.size();c++) |
| 528 | if(left[c].length()>max_width) max_width=left[c].length(); |
| 529 | /* output all the mess */ |
| 530 | for (unsigned int c=0; c<left.size();c++){ |
| 531 | string nl(max_width,' '); // Empty left side. |
| 532 | nl.replace(0,left[c].length(),left[c]); // Print in left side. |
| 533 | nl+=" "+right[c]; // Add right side. |
| 534 | |
| 535 | while (nl.length()>MAX_LINE_LENGTH){ // Too long??? |
| 536 | int limit=nl.find_last_of(' ',MAX_LINE_LENGTH); |
| 537 | target.insert(target.end(),nl.substr(0,limit)); |
| 538 | nl=string(max_width+2+6,' ')+nl.substr(limit+1); |
| 539 | } |
| 540 | target.insert(target.end(),nl); |
| 541 | } |
| 542 | } |
| 543 | |
| 544 | target.insert(target.end(),""); |
| 545 | target.insert(target.end(),"Legend (c/f):"); |
| 546 | target.insert(target.end()," c: Allowed on command line."); |
| 547 | target.insert(target.end()," f: Allowed in configuration file."); |
| 548 | |
| 549 | /* Output the Arguments */ |
| 550 | if (cmd_args.size()){ |
| 551 | target.insert(target.end(),""); |
| 552 | target.insert(target.end(),"Arguments:"); |
| 553 | |
| 554 | left=vector<string>(); |
| 555 | right=vector<string>(); |
| 556 | max_width=0; |
| 557 | |
| 558 | for (unsigned int arg=0; arg<cmd_args.size();arg++){ |
| 559 | cmd_arg_t akt_arg=cmd_args[arg]; |
| 560 | left.insert(left.end(),akt_arg.placeholder); |
| 561 | right.insert(right.end(),akt_arg.description); |
| 562 | } |
| 563 | |
| 564 | // Determine maximal width for left column |
| 565 | max_width=0; |
| 566 | for (unsigned int c=0; c<left.size();c++) |
| 567 | if(left[c].length()>max_width) max_width=left[c].length(); |
| 568 | |
| 569 | for (unsigned int c=0; c<left.size();c++){ |
| 570 | string nl(max_width,' '); |
| 571 | nl.replace(0,left[c].length(),left[c]); |
| 572 | nl+=" "+right[c]; |
| 573 | while (nl.length()>MAX_LINE_LENGTH){ // Too long??? |
| 574 | int limit=nl.find_last_of(' ',MAX_LINE_LENGTH+1); |
| 575 | target.insert(target.end(),nl.substr(0,limit)); |
| 576 | nl=string(max_width+2,' ')+nl.substr(limit+1); |
| 577 | } |
| 578 | target.insert(target.end(),nl); |
| 579 | } |
| 580 | target.insert(target.end(),""); |
| 581 | } |
| 582 | } |
| 583 | |
| 584 | /*! |
| 585 | *\brief Generate help. |
| 586 | *\return A vector containing many helpful strings for the user. |
| 587 | */ |
| 588 | vector<string> configuration_manager::get_help(){ |
| 589 | vector<string> result; |
| 590 | get_help(result); |
| 591 | return result; |
| 592 | } |
| 593 | |
| 594 | |
| 595 | /**************************************************/ |
| 596 | |
| 597 | |
| 598 | configuration_manager::opt_value_t::opt_value_t(const string & shortname, |
| 599 | const string & longname, |
| 600 | const string & description, |
| 601 | int * status, |
| 602 | string * target, |
| 603 | const string & placeholder, |
| 604 | const bool & allow_conffile, |
| 605 | const bool & allow_cmdline |
| 606 | ){ |
| 607 | this->shortname=shortname; |
| 608 | this->longname=longname; |
| 609 | this->description=description; |
| 610 | this->status=status; |
| 611 | this->target=target; |
| 612 | this->placeholder=placeholder; |
| 613 | this->allow_conffile=allow_conffile; |
| 614 | this->allow_cmdline=allow_cmdline; |
| 615 | if (status) *status=0; |
| 616 | } |
| 617 | |
| 618 | |
| 619 | configuration_manager::opt_switch_t::opt_switch_t(const string & shortname, |
| 620 | const string & longname, |
| 621 | const string & description, |
| 622 | int * status, |
| 623 | const bool & allow_conffile, |
| 624 | const bool & allow_cmdline){ |
| 625 | this->shortname=shortname; |
| 626 | this->longname=longname; |
| 627 | this->description=description; |
| 628 | this->status=status; |
| 629 | this->target=target; |
| 630 | this->placeholder=placeholder; |
| 631 | this->allow_conffile=allow_conffile; |
| 632 | this->allow_cmdline=allow_cmdline; |
| 633 | } |
| 634 | |
| 635 | |
| 636 | configuration_manager::cmd_arg_t::cmd_arg_t(const string & placeholder, |
| 637 | const string & description, |
| 638 | int * status, |
| 639 | string * target){ |
| 640 | this->placeholder=placeholder; |
| 641 | this->description=description; |
| 642 | this->status=status; |
| 643 | this->target=target; |
| 644 | } |