X-Git-Url: https://feistymeow.org/gitweb/?a=blobdiff_plain;ds=sidebyside;f=core%2Flibrary%2Fapplication%2Fcommand_line.cpp;fp=core%2Flibrary%2Fapplication%2Fcommand_line.cpp;h=0000000000000000000000000000000000000000;hb=457b128b77b5b4a0b7dd3094de543de2ce1477ad;hp=19f61810ce130f4151a510659b85243a950c6af0;hpb=32d7caf45d886d0d24e69eea00511c7815ac15d0;p=feisty_meow.git

diff --git a/core/library/application/command_line.cpp b/core/library/application/command_line.cpp
deleted file mode 100644
index 19f61810..00000000
--- a/core/library/application/command_line.cpp
+++ /dev/null
@@ -1,486 +0,0 @@
-/*****************************************************************************\
-*                                                                             *
-*  Name   : command_line                                                      *
-*  Author : Chris Koeritz                                                     *
-*                                                                             *
-*******************************************************************************
-* Copyright (c) 1992-$now By Author.  This program is free software; you can  *
-* redistribute it and/or modify it under the terms of the GNU General Public  *
-* License as published by the Free Software Foundation; either version 2 of   *
-* the License or (at your option) any later version.  This is online at:      *
-*     http://www.fsf.org/copyleft/gpl.html                                    *
-* Please send any updates to: fred@gruntose.com                               *
-\*****************************************************************************/
-
-#include "command_line.h"
-
-#include <basis/functions.h>
-#include <basis/astring.h>
-#include <basis/mutex.h>
-#include <configuration/application_configuration.h>
-#include <filesystem/directory.h>
-#include <filesystem/filename.h>
-#include <structures/static_memory_gremlin.h>
-#include <structures/string_array.h>
-#include <textual/parser_bits.h>
-#include <loggers/program_wide_logger.h>
-
-#undef LOG
-#define LOG(s) CLASS_EMERGENCY_LOG(program_wide_logger::get(), s)
-
-using namespace basis;
-using namespace configuration;
-using namespace filesystem;
-using namespace loggers;
-using namespace structures;
-using namespace textual;
-
-namespace application {
-
-DEFINE_ARGC_AND_ARGV;
-
-command_parameter::command_parameter(parameter_types type)
-: _type(type), _text(new astring) {}
-
-command_parameter::command_parameter(parameter_types type, const astring &text)
-: _type(type), _text(new astring(text)) {}
-
-command_parameter::command_parameter(const command_parameter &to_copy)
-: _type(VALUE), _text(new astring)
-{ *this = to_copy; }
-
-command_parameter::~command_parameter() { WHACK(_text); }
-
-const astring &command_parameter::text() const { return *_text; }
-
-void command_parameter::text(const astring &new_text) { *_text = new_text; }
-
-command_parameter &command_parameter::operator =
-    (const command_parameter &to_copy)
-{
-  if (this == &to_copy) return *this;
-  _type = to_copy._type;
-  *_text = *to_copy._text;
-  return *this;
-}
-
-//////////////
-
-// option_prefixes: the list of valid prefixes for options on a command line.
-// these are the characters that precede command line arguments.  For Unix,
-// the default is a dash (-), while for DOS most programs use forward-slash
-// (/).  Adding more characters is trivial; just add a character to the list
-// before the sentinel of '\0'.
-#if defined(_MSC_VER) || defined(__MINGW32__)
-  static char option_prefixes[] = { '-', '/', '\0' };
-#elif defined(__UNIX__)
-  static char option_prefixes[] = { '-', '\0' };
-#else
-  #error "I don't know what kind of operating system this is."
-#endif
-
-bool it_is_a_prefix_char(char to_test)
-{
-  for (int i = 0; option_prefixes[i]; i++)
-    if (to_test == option_prefixes[i]) return true;
-  return false;
-}
-
-//////////////
-
-class internal_cmd_line_array_of_parms : public array<command_parameter> {};
-
-//////////////
-
-SAFE_STATIC_CONST(command_parameter, command_line::cmdline_blank_parm, )
-  // our default return for erroneous indices.
-
-command_line::command_line(int argc, char *argv[])
-: _implementation(new internal_cmd_line_array_of_parms),
-  _program_name(new filename(directory::absolute_path(argv[0])))
-{
-  argv++;  // skip command name in argv.
-
-  // loop over the rest of the fields and examine them.
-  string_array string_list;  // accumulated below.
-  while (--argc > 0) {
-    astring to_store = argv[0];  // retrieve the current string.
-    string_list += to_store;  // put the string in our list.
-    argv++;  // next string.
-  }
-  parse_string_array(string_list);
-}
-
-command_line::command_line(const astring &full_line)
-: _implementation(new internal_cmd_line_array_of_parms),
-  _program_name(new filename)
-{
-  astring accumulator;
-  string_array string_list;
-  bool in_quote = false;
-//hmmm: this is not quote right yet.
-//      use the separate command line method, but get it to run iteratively
-//      so we can keep pulling them apart?  maybe it already does!
-//      separate is better because it handles escaped quotes.
-  for (int i = 0; i < full_line.length(); i++) {
-    char to_examine = full_line.get(i);
-    if (to_examine == '"') {
-      // it's a quote character, so maybe we can start eating spaces.
-      if (!in_quote) {
-        in_quote = true;
-        continue;  // eat the quote character but change modes.
-      }
-      // nope, we're closing a quote.  we assume that the quotes are
-      // around the whole argument.  that's the best win32 can do at least.
-      in_quote = false;
-      to_examine = ' ';  // trick parser into logging the accumulated string.
-      // intentional fall-through to space case.
-    }
-
-    if (parser_bits::white_space(to_examine)) {
-      // if this is a white space, then we start a new string.
-      if (!in_quote && accumulator.t()) {
-        // only grab the accumulator if there are some contents.
-        string_list += accumulator;
-        accumulator = "";
-      } else if (in_quote) {
-        // we're stuffing the spaces into the string since we're quoted.
-        accumulator += to_examine;
-      }
-    } else {
-      // not white space, so save it in the accumulator.
-      accumulator += to_examine;
-    }
-  }
-  if (accumulator.t()) string_list += accumulator;
-    // that partial string wasn't snarfed during the loop.
-  // grab the program name off the list so the parsing occurs as expected.
-  *_program_name = directory::absolute_path(string_list[0]);
-  string_list.zap(0, 0);
-  parse_string_array(string_list);
-}
-
-command_line::~command_line()
-{
-  WHACK(_program_name);
-  WHACK(_implementation);
-}
-
-int command_line::entries() const { return _implementation->length(); }
-
-filename command_line::program_name() const { return *_program_name; }
-
-const command_parameter &command_line::get(int field) const
-{
-  bounds_return(field, 0, entries() - 1, cmdline_blank_parm());
-  return _implementation->get(field);
-}
-
-void command_line::separate_command_line(const astring &cmd_line,
-    astring &app, astring &parms)
-{
-  char to_find = ' ';  // the command separator.
-  if (cmd_line[0] == '\"') to_find = '\"';
-    // if the first character is a quote, then we are seeing a quoted phrase
-    // and need to look for its completing quote.  otherwise, we'll just look
-    // for the next space.
-
-  int seek_posn = 1;  // skip the first character.  we have accounted for it.
-  // skim down the string, looking for the ending of the first phrase.
-  while (seek_posn < cmd_line.length()) {
-    // look for our parameter separator.  this will signify the end of the
-    // first phrase / chunk.  if we don't find it, then it should just mean
-    // there was only one item on the command line.
-    int indy = cmd_line.find(to_find, seek_posn);
-    if (negative(indy)) {
-      // yep, there wasn't a matching separator, so we think this is just
-      // one chunk--the app name.
-      app = cmd_line;
-      break;
-    } else {
-      // now that we know where our separator is, we need to find the right
-      // two parts (app and parms) based on the separator character in use.
-      if (to_find == '\"') {
-        // we are looking for a quote character to complete the app name.
-        if (cmd_line[indy - 1] == '\\') {
-          // we have a backslash escaping this quote!  keep seeking.
-          seek_posn = indy + 1;
-          continue;
-        }
-        app = cmd_line.substring(0, indy);
-        parms = cmd_line.substring(indy + 2, cmd_line.end());
-          // skip the quote and the obligatory space character after it.
-        break;
-      } else {
-        // simple space handling here; no escapes to worry about.
-        app = cmd_line.substring(0, indy - 1);
-        parms = cmd_line.substring(indy + 1, cmd_line.end());
-        break;
-      }
-    }
-  }
-}
-
-bool command_line::zap(int field)
-{
-  bounds_return(field, 0, entries() - 1, false);
-  _implementation->zap(field, field);
-  return true;
-}
-
-// makes a complaint about a failure and sets the hidden commands to have a
-// bogus entry so they aren't queried again.
-#define COMPLAIN_CMDS(s) \
-  listo_cmds += "unknown"; \
-  COMPLAIN(s)
-
-string_array command_line::get_command_line()
-{
-//  FUNCDEF("get_command_line");
-  string_array listo_cmds;
-  // the temporary string below can be given a flat formatting of the commands
-  // and it will be popped out into a list of arguments.
-  astring temporary;
-#ifdef __UNIX__
-  if (!_global_argc || !_global_argv) {
-    // our global parameters have not been set, so we must calculate them.
-    temporary = application_configuration::get_cmdline_from_proc();
-  } else {
-    // we have easy access to command line arguments supposedly, so use them.
-    for (int i = 0; i < _global_argc; i++) {
-      // add a string entry for each argument.
-      listo_cmds += _global_argv[i];
-    }
-    // we don't need a long string to be parsed; the list is ready.
-    return listo_cmds;
-  }
-#elif defined(__WIN32__)
-  // we have easy access to the original list of commands.
-  for (int i = 0; i < _global_argc; i++) {
-    // add a string entry for each argument.
-    listo_cmds += _global_argv[i];
-  }
-  return listo_cmds;
-#else
-  COMPLAIN_CMDS("this OS doesn't support getting the command line.");
-  return listo_cmds;
-#endif
-
-  // now that we have our best guess at a flat representation of the command
-  // line arguments, we'll chop it up.
-
-//hmmm: this algorithm doesn't support spaces in filenames currently.
-//hmmm: for windows, we can parse the quotes that should be around cmd name.
-//hmmm: but for unix, the ps command doesn't support spaces either.  how to
-//      get around that to support programs with spaces in the name?
-  int posn = 0;
-  int last_posn = -1;
-  while (posn < temporary.length()) {
-    posn = temporary.find(' ', posn);
-    if (non_negative(posn)) {
-      // found another space to turn into a portion of the command line.
-      listo_cmds += temporary.substring(last_posn + 1, posn - 1);
-        // grab the piece of string between the point just beyond where we
-        // last saw a space and the position just before the space.
-      last_posn = posn;  // save the last space position.
-      posn++;  // push the pointer past the space.
-    } else {
-      // no more spaces in the string.  grab what we can from the last bit
-      // of the string that we see.
-      if (last_posn < temporary.length() - 1) {
-        // there's something worthwhile grabbing after the last place we
-        // saw a space.
-        listo_cmds += temporary.substring(last_posn + 1,
-            temporary.length() - 1);
-      }
-      break;  // we're done finding spaces.
-    }
-  }
-
-  return listo_cmds;
-}
-
-astring command_line::text_form() const
-{
-  astring to_return;
-  const astring EOL = parser_bits::platform_eol_to_chars();
-  for (int i = 0; i < entries(); i++) {
-    const command_parameter &curr = get(i);
-    to_return += a_sprintf("%d: ", i + 1);
-    switch (curr.type()) {
-      case command_parameter::CHAR_FLAG:
-        to_return += astring("<char flag> ") + curr.text() + EOL;
-        break;
-      case command_parameter::STRING_FLAG:
-        to_return += astring("<string flag> ") + curr.text() + EOL;
-        break;
-      case command_parameter::VALUE:  // pass through to default.
-      default:
-        to_return += astring("<value> ") + curr.text() + EOL;
-        break;
-    }
-  }
-  return to_return;
-}
-
-bool command_line::find(char option_character, int &index,
-    bool case_sense) const
-{
-  astring opt(option_character, 1);  // convert to a string once here.
-  if (!case_sense) opt.to_lower();  // no case-sensitivity.
-  for (int i = index; i < entries(); i++) {
-//hmmm: optimize this too.
-    if (get(i).type() == command_parameter::CHAR_FLAG) {
-      bool success = (!case_sense && get(i).text().iequals(opt))
-          || (case_sense && (get(i).text() == opt));
-      if (success) {
-        // the type is appropriate and the value is correct as well...
-        index = i;
-        return true;
-      }
-    }
-  }
-  return false;
-}
-
-bool command_line::find(const astring &option_string, int &index,
-    bool case_sense) const
-{
-  FUNCDEF("find");
-if (option_string.length() && (option_string[0] == '-') )
-LOG(astring("found option string with dash!  string is: ") + option_string);
-
-  for (int i = index; i < entries(); i++) {
-    if (get(i).type() == command_parameter::STRING_FLAG) {
-      bool success = (!case_sense && get(i).text().iequals(option_string))
-          || (case_sense && (get(i).text() == option_string));
-      if (success) {
-        // the type is appropriate and the value is correct as well...
-        index = i;
-        return true;
-      }
-    }
-  }
-  return false;
-}
-
-bool command_line::get_value(char option_character, astring &value,
-    bool case_sense) const
-{
-  value = "";
-  int posn = 0;  // where we find the flag.
-  if (!find(option_character, posn, case_sense)) return false;
-
-  // get the value after the flag, if there is such.
-  posn++;  // this is where we think our flag's value lives.
-  if (posn >= entries()) return false;
-
-  // there's still an entry after where we found our flag; grab it.
-  command_parameter cp = get(posn);
-  if (cp.type() != command_parameter::VALUE) return false;
-
-  // finally; we've found an appropriate text value.
-  value = cp.text();
-  return true;
-}
-
-bool command_line::get_value(const astring &option_string, astring &value,
-    bool case_sense) const
-{
-  FUNCDEF("get_value");
-if (option_string.length() && (option_string[0] == '-') )
-LOG(astring("found option string with dash!  string is: ") + option_string);
-
-  value = "";
-  int posn = 0;  // where we find the flag.
-  if (!find(option_string, posn, case_sense)) return false;
-
-  // get the value after the flag, if there is such.
-  posn++;  // this is where we think our flag's value lives.
-  if (posn >= entries()) return false;
-
-  // there's still an entry after where we found our flag; grab it.
-  command_parameter cp = get(posn);
-  if (cp.type() != command_parameter::VALUE) return false;
-
-  // finally; we've found an appropriate text value.
-  value = cp.text();
-  return true;
-}
-
-void command_line::parse_string_array(const string_array &to_parse)
-{
-  bool still_looking_for_flags = true;  // goes to false when only values left.
-  // loop over the fields and examine them.
-  for (int i = 0; i < to_parse.length(); i++) {
-    // retrieve a character from the current string.
-    int index = 0;
-    char c = to_parse[i].get(index++);
-    // we check whether it's a prefix character, and if so, what kind.
-    if (still_looking_for_flags && it_is_a_prefix_char(c)) {
-      // at least one prefix is there, so treat this as a flag.
-      bool gnu_type_of_flag = false;
-      if (it_is_a_prefix_char(to_parse[i].get(index))) {
-        // there's a special GNU double flag beginner.
-        index++;  // skip that extra one.
-        if ( (index >= to_parse[i].length())
-            || parser_bits::white_space(to_parse[i].get(index))) {
-          // special case of '--' (or '//' i suppose) with white space or
-          // nothing else afterwards; indicates that the rest of the items
-          // should just be values, not flags.
-          still_looking_for_flags = false;
-          continue;  // we ate that item.
-        }
-        gnu_type_of_flag = true;
-      }
-      // everything after the prefixes is considered part of the flag; they're
-      // either individual flag characters (on a single prefix) or they're the
-      // full name for the flag (gnu style).
-      c = 1;  // reset to a true bool value.
-      astring gnu_accumulator;  // if processing a gnu flag, it arrives here.
-      while (c) {
-        if (!gnu_type_of_flag) {
-          // add as many flag parameters as possible.
-          c = to_parse[i].get(index++);
-            // c will be zero once we hit the end of the string.
-          if (c) {
-            command_parameter to_add(command_parameter::CHAR_FLAG, astring(c, 1));
-            *_implementation += to_add;
-          }
-        } else {
-          // the gnu flag name is added to here.
-          c = to_parse[i].get(index++);  // zero at end of string.
-          if (c)
-            gnu_accumulator += c;  // one more character.
-        }
-      }
-      if (gnu_accumulator.t()) {
-        // we've accumulated a gnu flag, so store it.
-        command_parameter to_add(command_parameter::STRING_FLAG,
-            gnu_accumulator);
-        *_implementation += to_add;
-      }
-    } else {
-      // add a value type of command_parameter.
-      astring found = to_parse[i];
-      command_parameter to_add(command_parameter::VALUE, found);
-      *_implementation += to_add;
-    }
-  }
-}
-
-astring command_line::gather(int &index) const
-{
-  astring to_return;
-  for (int i = index; i < entries(); i++) {
-    if (get(i).type() == command_parameter::CHAR_FLAG) {
-      index = i;
-      return to_return;
-    } else to_return += get(i).text();
-  }
-  index = entries() - 1;
-  return to_return;
-}
-
-} //namespace.
-