diff options
Diffstat (limited to 'src/libs/7zip/win/CPP/Common/CommandLineParser.cpp')
| -rw-r--r-- | src/libs/7zip/win/CPP/Common/CommandLineParser.cpp | 229 |
1 files changed, 229 insertions, 0 deletions
diff --git a/src/libs/7zip/win/CPP/Common/CommandLineParser.cpp b/src/libs/7zip/win/CPP/Common/CommandLineParser.cpp new file mode 100644 index 000000000..80b467fcb --- /dev/null +++ b/src/libs/7zip/win/CPP/Common/CommandLineParser.cpp @@ -0,0 +1,229 @@ +// CommandLineParser.cpp + +#include "StdAfx.h" + +#include "CommandLineParser.h" + +namespace NCommandLineParser { + +bool SplitCommandLine(const UString &src, UString &dest1, UString &dest2) +{ + dest1.Empty(); + dest2.Empty(); + bool quoteMode = false; + int i; + for (i = 0; i < src.Length(); i++) + { + wchar_t c = src[i]; + if (c == L' ' && !quoteMode) + { + dest2 = src.Mid(i + 1); + return i != 0; + } + if (c == L'\"') + quoteMode = !quoteMode; + else + dest1 += c; + } + return i != 0; +} + +void SplitCommandLine(const UString &s, UStringVector &parts) +{ + UString sTemp = s; + sTemp.Trim(); + parts.Clear(); + for (;;) + { + UString s1, s2; + if (SplitCommandLine(sTemp, s1, s2)) + parts.Add(s1); + if (s2.IsEmpty()) + break; + sTemp = s2; + } +} + + +static const wchar_t kSwitchID1 = '-'; +// static const wchar_t kSwitchID2 = '/'; + +static const wchar_t kSwitchMinus = '-'; +static const wchar_t *kStopSwitchParsing = L"--"; + +static bool IsItSwitchChar(wchar_t c) +{ + return (c == kSwitchID1 /*|| c == kSwitchID2 */); +} + +CParser::CParser(int numSwitches): + _numSwitches(numSwitches) +{ + _switches = new CSwitchResult[_numSwitches]; +} + +CParser::~CParser() +{ + delete []_switches; +} + +void CParser::ParseStrings(const CSwitchForm *switchForms, + const UStringVector &commandStrings) +{ + int numCommandStrings = commandStrings.Size(); + bool stopSwitch = false; + for (int i = 0; i < numCommandStrings; i++) + { + const UString &s = commandStrings[i]; + if (stopSwitch) + NonSwitchStrings.Add(s); + else + if (s == kStopSwitchParsing) + stopSwitch = true; + else + if (!ParseString(s, switchForms)) + NonSwitchStrings.Add(s); + } +} + +// if string contains switch then function updates switch structures +// out: (string is a switch) +bool CParser::ParseString(const UString &s, const CSwitchForm *switchForms) +{ + int len = s.Length(); + if (len == 0) + return false; + int pos = 0; + if (!IsItSwitchChar(s[pos])) + return false; + while (pos < len) + { + if (IsItSwitchChar(s[pos])) + pos++; + const int kNoLen = -1; + int matchedSwitchIndex = 0; // GCC Warning + int maxLen = kNoLen; + for (int switchIndex = 0; switchIndex < _numSwitches; switchIndex++) + { + int switchLen = MyStringLen(switchForms[switchIndex].IDString); + if (switchLen <= maxLen || pos + switchLen > len) + continue; + + UString temp = s + pos; + temp = temp.Left(switchLen); + if (temp.CompareNoCase(switchForms[switchIndex].IDString) == 0) + // if (_strnicmp(switchForms[switchIndex].IDString, LPCSTR(s) + pos, switchLen) == 0) + { + matchedSwitchIndex = switchIndex; + maxLen = switchLen; + } + } + if (maxLen == kNoLen) + throw "maxLen == kNoLen"; + CSwitchResult &matchedSwitch = _switches[matchedSwitchIndex]; + const CSwitchForm &switchForm = switchForms[matchedSwitchIndex]; + if ((!switchForm.Multi) && matchedSwitch.ThereIs) + throw "switch must be single"; + matchedSwitch.ThereIs = true; + pos += maxLen; + int tailSize = len - pos; + NSwitchType::EEnum type = switchForm.Type; + switch(type) + { + case NSwitchType::kPostMinus: + { + if (tailSize == 0) + matchedSwitch.WithMinus = false; + else + { + matchedSwitch.WithMinus = (s[pos] == kSwitchMinus); + if (matchedSwitch.WithMinus) + pos++; + } + break; + } + case NSwitchType::kPostChar: + { + if (tailSize < switchForm.MinLen) + throw "switch is not full"; + UString set = switchForm.PostCharSet; + const int kEmptyCharValue = -1; + if (tailSize == 0) + matchedSwitch.PostCharIndex = kEmptyCharValue; + else + { + int index = set.Find(s[pos]); + if (index < 0) + matchedSwitch.PostCharIndex = kEmptyCharValue; + else + { + matchedSwitch.PostCharIndex = index; + pos++; + } + } + break; + } + case NSwitchType::kLimitedPostString: + case NSwitchType::kUnLimitedPostString: + { + int minLen = switchForm.MinLen; + if (tailSize < minLen) + throw "switch is not full"; + if (type == NSwitchType::kUnLimitedPostString) + { + matchedSwitch.PostStrings.Add(s.Mid(pos)); + return true; + } + int maxLen = switchForm.MaxLen; + UString stringSwitch = s.Mid(pos, minLen); + pos += minLen; + for (int i = minLen; i < maxLen && pos < len; i++, pos++) + { + wchar_t c = s[pos]; + if (IsItSwitchChar(c)) + break; + stringSwitch += c; + } + matchedSwitch.PostStrings.Add(stringSwitch); + break; + } + case NSwitchType::kSimple: + break; + } + } + return true; +} + +const CSwitchResult& CParser::operator[](size_t index) const +{ + return _switches[index]; +} + +///////////////////////////////// +// Command parsing procedures + +int ParseCommand(int numCommandForms, const CCommandForm *commandForms, + const UString &commandString, UString &postString) +{ + for (int i = 0; i < numCommandForms; i++) + { + const UString id = commandForms[i].IDString; + if (commandForms[i].PostStringMode) + { + if (commandString.Find(id) == 0) + { + postString = commandString.Mid(id.Length()); + return i; + } + } + else + if (commandString == id) + { + postString.Empty(); + return i; + } + } + return -1; +} + +} |