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author | Timothy Pearson <kb9vqf@pearsoncomputing.net> | 2011-11-06 15:56:34 -0600 |
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committer | Timothy Pearson <kb9vqf@pearsoncomputing.net> | 2011-11-06 15:56:34 -0600 |
commit | b529f046c9a64ac5fcfa60747af940cf972b3ebc (patch) | |
tree | 83c28cf7fa8fed1960ebd3924b579e7ed8c95cc6 /tdesu/tdesud/lexer.cpp | |
parent | 6508fe4c40c60fd7a43bd3d9e19b762e10ea3f53 (diff) | |
download | tdebase-b529f046c9a64ac5fcfa60747af940cf972b3ebc.tar.gz tdebase-b529f046c9a64ac5fcfa60747af940cf972b3ebc.zip |
Actually move the kde files that were renamed in the last commit
Diffstat (limited to 'tdesu/tdesud/lexer.cpp')
-rw-r--r-- | tdesu/tdesud/lexer.cpp | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/tdesu/tdesud/lexer.cpp b/tdesu/tdesud/lexer.cpp new file mode 100644 index 000000000..f1932f07d --- /dev/null +++ b/tdesu/tdesud/lexer.cpp @@ -0,0 +1,134 @@ +/* vi: ts=8 sts=4 sw=4 + * + * This file is part of the KDE project, module tdesu. + * Copyright (C) 1999,2000 Geert Jansen <jansen@kde.org> + * + * lexer.cpp: A lexer for the tdesud protocol. See tdesud.cpp for a + * description of the protocol. + */ + +#include <ctype.h> +#include <tqcstring.h> +#include "lexer.h" + + +Lexer::Lexer(const TQCString &input) +{ + m_Input = input; + in = 0; +} + +Lexer::~Lexer() +{ + // Erase buffers + m_Input.fill('x'); + m_Output.fill('x'); +} + +TQCString &Lexer::lval() +{ + return m_Output; +} + +/* + * lex() is the lexer. There is no end-of-input check here so that has to be + * done by the caller. + */ + +int Lexer::lex() +{ + char c; + + c = m_Input[in++]; + m_Output.fill('x'); + m_Output.resize(0); + + while (1) + { + // newline? + if (c == '\n') + return '\n'; + + // No control characters + if (iscntrl(c)) + return Tok_none; + + if (isspace(c)) + while (isspace(c = m_Input[in++])); + + // number? + if (isdigit(c)) + { + m_Output += c; + while (isdigit(c = m_Input[in++])) + m_Output += c; + in--; + return Tok_num; + } + + // quoted string? + if (c == '"') + { + c = m_Input[in++]; + while ((c != '"') && !iscntrl(c)) { + // handle escaped characters + if (c == '\\') + m_Output += m_Input[in++]; + else + m_Output += c; + c = m_Input[in++]; + } + if (c == '"') + return Tok_str; + return Tok_none; + } + + // normal string + while (!isspace(c) && !iscntrl(c)) + { + m_Output += c; + c = m_Input[in++]; + } + in--; + + // command? + if (m_Output.length() <= 4) + { + if (m_Output == "EXEC") + return Tok_exec; + if (m_Output == "PASS") + return Tok_pass; + if (m_Output == "DEL") + return Tok_delCmd; + if (m_Output == "PING") + return Tok_ping; + if (m_Output == "EXIT") + return Tok_exit; + if (m_Output == "STOP") + return Tok_stop; + if (m_Output == "SET") + return Tok_set; + if (m_Output == "GET") + return Tok_get; + if (m_Output == "HOST") + return Tok_host; + if (m_Output == "SCHD") + return Tok_sched; + if (m_Output == "PRIO") + return Tok_prio; + if (m_Output == "DELV") + return Tok_delVar; + if (m_Output == "DELG") + return Tok_delGroup; + if (m_Output == "DELS") + return Tok_delSpecialKey; + if (m_Output == "GETK") + return Tok_getKeys; + if (m_Output == "CHKG") + return Tok_chkGroup; + } + + return Tok_str; + } +} + |