mirror of
https://github.com/ddnet/ddnet.git
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490 lines
10 KiB
C++
490 lines
10 KiB
C++
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#include <base/system.h>
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#include <engine/shared/protocol.h>
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#include <engine/storage.h>
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#include "console.h"
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#include "config.h"
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#include "engine.h"
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#include "linereader.h"
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const char *CConsole::CResult::GetString(unsigned Index)
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{
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if (Index < 0 || Index >= m_NumArgs)
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return "";
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return m_apArgs[Index];
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}
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int CConsole::CResult::GetInteger(unsigned Index)
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{
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if (Index < 0 || Index >= m_NumArgs)
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return 0;
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return str_toint(m_apArgs[Index]);
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}
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float CConsole::CResult::GetFloat(unsigned Index)
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{
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if (Index < 0 || Index >= m_NumArgs)
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return 0.0f;
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return str_tofloat(m_apArgs[Index]);
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}
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// the maximum number of tokens occurs in a string of length CONSOLE_MAX_STR_LENGTH with tokens size 1 separated by single spaces
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static char *SkipBlanks(char *pStr)
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{
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while(*pStr && (*pStr == ' ' || *pStr == '\t' || *pStr == '\n'))
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pStr++;
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return pStr;
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}
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static char *SkipToBlank(char *pStr)
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{
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while(*pStr && (*pStr != ' ' && *pStr != '\t' && *pStr != '\n'))
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pStr++;
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return pStr;
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}
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int CConsole::ParseStart(CResult *pResult, const char *pString, int Length)
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{
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char *pStr;
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int Len = sizeof(pResult->m_aStringStorage);
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if(Length < Len)
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Len = Length;
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str_copy(pResult->m_aStringStorage, pString, Length);
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pStr = pResult->m_aStringStorage;
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// get command
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pStr = SkipBlanks(pStr);
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pResult->m_pCommand = pStr;
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pStr = SkipToBlank(pStr);
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if(*pStr)
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{
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pStr[0] = 0;
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pStr++;
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}
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pResult->m_pArgsStart = pStr;
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return 0;
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}
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int CConsole::ParseArgs(CResult *pResult, const char *pFormat)
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{
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char Command;
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char *pStr;
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int Optional = 0;
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int Error = 0;
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pStr = pResult->m_pArgsStart;
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while(1)
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{
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// fetch command
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Command = *pFormat;
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pFormat++;
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if(!Command)
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break;
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if(Command == '?')
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Optional = 1;
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else
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{
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pStr = SkipBlanks(pStr);
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if(!(*pStr)) // error, non optional command needs value
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{
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if(!Optional)
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Error = 1;
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break;
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}
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// add token
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if(*pStr == '"')
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{
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char *pDst;
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pStr++;
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pResult->AddArgument(pStr);
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pDst = pStr; // we might have to process escape data
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while(1)
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{
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if(pStr[0] == '"')
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break;
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else if(pStr[0] == '\\')
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{
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if(pStr[1] == '\\')
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pStr++; // skip due to escape
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else if(pStr[1] == '"')
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pStr++; // skip due to escape
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}
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else if(pStr[0] == 0)
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return 1; // return error
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*pDst = *pStr;
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pDst++;
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pStr++;
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}
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// write null termination
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*pDst = 0;
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pStr++;
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}
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else
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{
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pResult->AddArgument(pStr);
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if(Command == 'r') // rest of the string
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break;
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else if(Command == 'i') // validate int
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pStr = SkipToBlank(pStr);
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else if(Command == 'f') // validate float
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pStr = SkipToBlank(pStr);
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else if(Command == 's') // validate string
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pStr = SkipToBlank(pStr);
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if(pStr[0] != 0) // check for end of string
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{
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pStr[0] = 0;
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pStr++;
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}
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}
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}
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}
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return Error;
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}
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void CConsole::RegisterPrintCallback(FPrintCallback pfnPrintCallback, void *pUserData)
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{
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m_pfnPrintCallback = pfnPrintCallback;
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m_pPrintCallbackUserdata = pUserData;
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}
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void CConsole::Print(const char *pStr)
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{
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dbg_msg("console" ,"%s", pStr);
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if (m_pfnPrintCallback)
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m_pfnPrintCallback(pStr, m_pPrintCallbackUserdata);
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}
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void CConsole::ExecuteLineStroked(int Stroke, const char *pStr)
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{
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CResult Result;
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char aStrokeStr[2] = {'0', 0};
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if(Stroke)
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aStrokeStr[0] = '1';
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while(pStr && *pStr)
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{
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const char *pEnd = pStr;
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const char *pNextPart = 0;
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int InString = 0;
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while(*pEnd)
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{
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if(*pEnd == '"')
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InString ^= 1;
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else if(*pEnd == '\\') // escape sequences
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{
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if(pEnd[1] == '"')
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pEnd++;
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}
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else if(!InString)
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{
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if(*pEnd == ';') // command separator
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{
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pNextPart = pEnd+1;
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break;
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}
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else if(*pEnd == '#') // comment, no need to do anything more
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break;
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}
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pEnd++;
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}
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if(ParseStart(&Result, pStr, (pEnd-pStr) + 1) != 0)
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return;
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CCommand *pCommand = FindCommand(Result.m_pCommand);
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if(pCommand)
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{
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int IsStrokeCommand = 0;
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if(Result.m_pCommand[0] == '+')
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{
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// insert the stroke direction token
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Result.AddArgument(aStrokeStr);
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IsStrokeCommand = 1;
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}
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if(Stroke || IsStrokeCommand)
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{
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if(ParseArgs(&Result, pCommand->m_pParams))
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{
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char aBuf[256];
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str_format(aBuf, sizeof(aBuf), "Invalid arguments... Usage: %s %s", pCommand->m_pName, pCommand->m_pParams);
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Print(aBuf);
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}
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else
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pCommand->m_pfnCallback(&Result, pCommand->m_pUserData);
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}
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}
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else
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{
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char aBuf[256];
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str_format(aBuf, sizeof(aBuf), "No such command: %s.", Result.m_pCommand);
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Print(aBuf);
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}
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pStr = pNextPart;
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}
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}
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void CConsole::PossibleCommands(const char *pStr, int FlagMask, FPossibleCallback pfnCallback, void *pUser)
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{
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CCommand *pCommand;
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for(pCommand = m_pFirstCommand; pCommand; pCommand = pCommand->m_pNext)
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{
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if(pCommand->m_Flags&FlagMask)
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{
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if(str_find_nocase(pCommand->m_pName, pStr))
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pfnCallback(pCommand->m_pName, pUser);
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}
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}
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}
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// TODO: this should regard the commands flag
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CConsole::CCommand *CConsole::FindCommand(const char *pName)
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{
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CCommand *pCommand;
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for (pCommand = m_pFirstCommand; pCommand; pCommand = pCommand->m_pNext)
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{
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if(str_comp_nocase(pCommand->m_pName, pName) == 0)
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return pCommand;
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}
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return 0x0;
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}
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void CConsole::ExecuteLine(const char *pStr)
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{
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CConsole::ExecuteLineStroked(1, pStr);
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}
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void CConsole::ExecuteFile(const char *pFilename)
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{
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// make sure that this isn't being executed already
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for(CExecFile *pCur = m_pFirstExec; pCur; pCur = pCur->m_pPrev)
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if(str_comp(pFilename, pCur->m_pFilename) == 0)
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return;
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if(!m_pStorage)
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m_pStorage = Kernel()->RequestInterface<IStorage>();
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if(!m_pStorage)
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return;
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// push this one to the stack
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CExecFile ThisFile;
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CExecFile *pPrev = m_pFirstExec;
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ThisFile.m_pFilename = pFilename;
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ThisFile.m_pPrev = m_pFirstExec;
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m_pFirstExec = &ThisFile;
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// exec the file
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IOHANDLE File = m_pStorage->OpenFile(pFilename, IOFLAG_READ);
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if(File)
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{
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char *pLine;
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CLineReader lr;
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dbg_msg("console", "executing '%s'", pFilename);
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lr.Init(File);
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while((pLine = lr.Get()))
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ExecuteLine(pLine);
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io_close(File);
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}
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else
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dbg_msg("console", "failed to open '%s'", pFilename);
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m_pFirstExec = pPrev;
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}
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void CConsole::Con_Echo(IResult *pResult, void *pUserData)
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{
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((CConsole*)pUserData)->Print(pResult->GetString(0));
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}
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void CConsole::Con_Exec(IResult *pResult, void *pUserData)
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{
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((CConsole*)pUserData)->ExecuteFile(pResult->GetString(0));
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}
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struct CIntVariableData
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{
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IConsole *m_pConsole;
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int *m_pVariable;
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int m_Min;
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int m_Max;
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};
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struct CStrVariableData
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{
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IConsole *m_pConsole;
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char *m_pStr;
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int m_MaxSize;
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};
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static void IntVariableCommand(IConsole::IResult *pResult, void *pUserData)
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{
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CIntVariableData *pData = (CIntVariableData *)pUserData;
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if(pResult->NumArguments())
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{
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int Val = pResult->GetInteger(0);
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// do clamping
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if(pData->m_Min != pData->m_Max)
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{
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if (Val < pData->m_Min)
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Val = pData->m_Min;
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if (pData->m_Max != 0 && Val > pData->m_Max)
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Val = pData->m_Max;
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}
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*(pData->m_pVariable) = Val;
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}
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else
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{
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char aBuf[1024];
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str_format(aBuf, sizeof(aBuf), "Value: %d", *(pData->m_pVariable));
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pData->m_pConsole->Print(aBuf);
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}
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}
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static void StrVariableCommand(IConsole::IResult *pResult, void *pUserData)
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{
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CStrVariableData *pData = (CStrVariableData *)pUserData;
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if(pResult->NumArguments())
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str_copy(pData->m_pStr, pResult->GetString(0), pData->m_MaxSize);
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else
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{
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char aBuf[1024];
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str_format(aBuf, sizeof(aBuf), "Value: %s", pData->m_pStr);
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pData->m_pConsole->Print(aBuf);
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}
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}
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CConsole::CConsole()
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{
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m_pFirstCommand = 0;
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m_pFirstExec = 0;
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m_pPrintCallbackUserdata = 0;
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m_pfnPrintCallback = 0;
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m_pStorage = 0;
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// register some basic commands
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Register("echo", "r", CFGFLAG_SERVER|CFGFLAG_CLIENT, Con_Echo, this, "Echo the text");
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Register("exec", "r", CFGFLAG_SERVER|CFGFLAG_CLIENT, Con_Exec, this, "Execute the specified file");
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// TODO: this should disappear
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#define MACRO_CONFIG_INT(Name,ScriptName,Def,Min,Max,Flags,Desc) \
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{ \
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static CIntVariableData Data = { this, &g_Config.m_##Name, Min, Max }; \
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Register(#ScriptName, "?i", Flags, IntVariableCommand, &Data, Desc); \
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}
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#define MACRO_CONFIG_STR(Name,ScriptName,Len,Def,Flags,Desc) \
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{ \
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static CStrVariableData Data = { this, g_Config.m_##Name, Len }; \
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Register(#ScriptName, "?r", Flags, StrVariableCommand, &Data, Desc); \
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}
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#include "config_variables.h"
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#undef MACRO_CONFIG_INT
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#undef MACRO_CONFIG_STR
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}
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void CConsole::ParseArguments(int NumArgs, const char **ppArguments)
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{
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for(int i = 0; i < NumArgs; i++)
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{
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// check for scripts to execute
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if(ppArguments[i][0] == '-' && ppArguments[i][1] == 'f' && ppArguments[i][2] == 0 && NumArgs - i > 1)
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{
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ExecuteFile(ppArguments[i+1]);
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i++;
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}
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else
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{
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// search arguments for overrides
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ExecuteLine(ppArguments[i]);
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}
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}
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}
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void CConsole::Register(const char *pName, const char *pParams,
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int Flags, FCommandCallback pfnFunc, void *pUser, const char *pHelp)
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{
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CCommand *pCommand = (CCommand *)mem_alloc(sizeof(CCommand), sizeof(void*));
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pCommand->m_pfnCallback = pfnFunc;
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pCommand->m_pUserData = pUser;
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pCommand->m_pHelp = pHelp;
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pCommand->m_pName = pName;
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pCommand->m_pParams = pParams;
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pCommand->m_Flags = Flags;
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pCommand->m_pNext = m_pFirstCommand;
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m_pFirstCommand = pCommand;
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}
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void CConsole::Con_Chain(IResult *pResult, void *pUserData)
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{
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CChain *pInfo = (CChain *)pUserData;
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pInfo->m_pfnChainCallback(pResult, pInfo->m_pUserData, pInfo->m_pfnCallback, pInfo->m_pCallbackUserData);
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}
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void CConsole::Chain(const char *pName, FChainCommandCallback pfnChainFunc, void *pUser)
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{
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CCommand *pCommand = FindCommand(pName);
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if(!pCommand)
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{
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dbg_msg("console", "failed to chain '%s'", pName);
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return;
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}
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CChain *pChainInfo = (CChain *)mem_alloc(sizeof(CChain), sizeof(void*));
|
||
|
|
||
|
// store info
|
||
|
pChainInfo->m_pfnChainCallback = pfnChainFunc;
|
||
|
pChainInfo->m_pUserData = pUser;
|
||
|
pChainInfo->m_pfnCallback = pCommand->m_pfnCallback;
|
||
|
pChainInfo->m_pCallbackUserData = pCommand->m_pUserData;
|
||
|
|
||
|
// chain
|
||
|
pCommand->m_pfnCallback = Con_Chain;
|
||
|
pCommand->m_pUserData = pChainInfo;
|
||
|
}
|
||
|
|
||
|
|
||
|
IConsole::CCommandInfo *CConsole::GetCommandInfo(const char *pName)
|
||
|
{
|
||
|
return FindCommand(pName);
|
||
|
}
|
||
|
|
||
|
|
||
|
extern IConsole *CreateConsole() { return new CConsole(); }
|