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-rwxr-xr-xCPP/Common/CommandLineParser.cpp229
1 files changed, 229 insertions, 0 deletions
diff --git a/CPP/Common/CommandLineParser.cpp b/CPP/Common/CommandLineParser.cpp
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+++ b/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;
+}
+
+}