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%{
/* Icinga 2 | (c) 2012 Icinga GmbH | GPLv2+ */
#include "config/configcompiler.hpp"
#include "config/expression.hpp"
#include "base/exception.hpp"
#include <utility>
using namespace icinga;
#include "config/config_parser.hh"
#include <sstream>
#define YYLTYPE icinga::CompilerDebugInfo
#define YY_EXTRA_TYPE ConfigCompiler *
#define YY_USER_ACTION \
do { \
yylloc->Path = yyextra->GetPath(); \
yylloc->FirstLine = yylineno; \
yylloc->FirstColumn = yycolumn; \
yylloc->LastLine = yylineno; \
yylloc->LastColumn = yycolumn + yyleng - 1; \
yycolumn += yyleng; \
} while (0);
#define YY_INPUT(buf, result, max_size) \
do { \
result = yyextra->ReadInput(buf, max_size); \
} while (0)
%}
%option reentrant noyywrap yylineno
%option bison-bridge bison-locations
%option never-interactive nounistd
%option noinput nounput
%x C_COMMENT
%x STRING
%x HEREDOC
%%
\" {
yyextra->m_LexBuffer.Clear();
yyextra->m_LocationBegin = *yylloc;
BEGIN(STRING);
}
<STRING>\" {
BEGIN(INITIAL);
yylloc->FirstLine = yyextra->m_LocationBegin.FirstLine;
yylloc->FirstColumn = yyextra->m_LocationBegin.FirstColumn;
yylval->text = new String(std::move(yyextra->m_LexBuffer));
return T_STRING;
}
<STRING>\n {
BOOST_THROW_EXCEPTION(ScriptError("Unterminated string literal", DebugInfoRange(yyextra->m_LocationBegin, *yylloc)));
}
<STRING>\\[0-7]{1,3} {
/* octal escape sequence */
int result;
(void) sscanf(yytext + 1, "%o", &result);
if (result > 0xff) {
/* error, constant is out-of-bounds */
BOOST_THROW_EXCEPTION(ScriptError("Constant is out of bounds: " + String(yytext), *yylloc));
}
yyextra->m_LexBuffer += static_cast<char>(result);
}
<STRING>\\[0-9]+ {
/* generate error - bad escape sequence; something
* like '\48' or '\0777777'
*/
BOOST_THROW_EXCEPTION(ScriptError("Bad escape sequence found: " + String(yytext), *yylloc));
}
<STRING>\\n { yyextra->m_LexBuffer += '\n'; }
<STRING>\\\\ { yyextra->m_LexBuffer += '\\'; }
<STRING>\\\" { yyextra->m_LexBuffer += '"'; }
<STRING>\\t { yyextra->m_LexBuffer += '\t'; }
<STRING>\\r { yyextra->m_LexBuffer += '\r'; }
<STRING>\\b { yyextra->m_LexBuffer += '\b'; }
<STRING>\\f { yyextra->m_LexBuffer += '\f'; }
<STRING>\\\n { yyextra->m_LexBuffer += yytext[1]; }
<STRING>\\. {
BOOST_THROW_EXCEPTION(ScriptError("Bad escape sequence found: " + String(yytext), *yylloc));
}
<STRING>[^\\\n\"]+ {
char *yptr = yytext;
while (*yptr)
yyextra->m_LexBuffer += *yptr++;
}
<STRING><<EOF>> {
BOOST_THROW_EXCEPTION(ScriptError("End-of-file while in string literal", DebugInfoRange(yyextra->m_LocationBegin, *yylloc)));
}
\{\{\{ {
yyextra->m_LexBuffer.Clear();
yyextra->m_LocationBegin = *yylloc;
BEGIN(HEREDOC);
}
<HEREDOC><<EOF>> {
BOOST_THROW_EXCEPTION(ScriptError("End-of-file while in string literal", DebugInfoRange(yyextra->m_LocationBegin, *yylloc)));
}
<HEREDOC>\}\}\} {
BEGIN(INITIAL);
yylloc->FirstLine = yyextra->m_LocationBegin.FirstLine;
yylloc->FirstColumn = yyextra->m_LocationBegin.FirstColumn;
yylval->text = new String(std::move(yyextra->m_LexBuffer));
return T_STRING;
}
<HEREDOC>(.|\n) { yyextra->m_LexBuffer += yytext[0]; }
<INITIAL>{
"/*" BEGIN(C_COMMENT);
}
<C_COMMENT>{
"*/" BEGIN(INITIAL);
[^*] /* ignore comment */
"*" /* ignore star */
}
<C_COMMENT><<EOF>> {
BOOST_THROW_EXCEPTION(ScriptError("End-of-file while in comment", *yylloc));
}
\/\/[^\n]* /* ignore C++-style comments */
#[^\n]* /* ignore shell-style comments */
[ \t] /* ignore whitespace */
<INITIAL>{
object return T_OBJECT;
template return T_TEMPLATE;
include return T_INCLUDE;
include_recursive return T_INCLUDE_RECURSIVE;
include_zones return T_INCLUDE_ZONES;
library return T_LIBRARY;
null return T_NULL;
true { yylval->boolean = 1; return T_BOOLEAN; }
false { yylval->boolean = 0; return T_BOOLEAN; }
const return T_CONST;
var return T_VAR;
this return T_THIS;
globals return T_GLOBALS;
locals return T_LOCALS;
use return T_USE;
using return T_USING;
apply return T_APPLY;
default return T_DEFAULT;
to return T_TO;
where return T_WHERE;
import return T_IMPORT;
assign return T_ASSIGN;
ignore return T_IGNORE;
function return T_FUNCTION;
return return T_RETURN;
break return T_BREAK;
continue return T_CONTINUE;
for return T_FOR;
if return T_IF;
else return T_ELSE;
while return T_WHILE;
throw return T_THROW;
try return T_TRY;
except return T_EXCEPT;
ignore_on_error return T_IGNORE_ON_ERROR;
current_filename return T_CURRENT_FILENAME;
current_line return T_CURRENT_LINE;
debugger return T_DEBUGGER;
namespace return T_NAMESPACE;
=\> return T_FOLLOWS;
\<\< return T_SHIFT_LEFT;
\>\> return T_SHIFT_RIGHT;
\<= return T_LESS_THAN_OR_EQUAL;
\>= return T_GREATER_THAN_OR_EQUAL;
== return T_EQUAL;
!= return T_NOT_EQUAL;
!in return T_NOT_IN;
in return T_IN;
&& return T_LOGICAL_AND;
\|\| return T_LOGICAL_OR;
\{\{ return T_NULLARY_LAMBDA_BEGIN;
\}\} return T_NULLARY_LAMBDA_END;
[a-zA-Z_][a-zA-Z0-9\_]* { yylval->text = new String(yytext); return T_IDENTIFIER; }
@[a-zA-Z_][a-zA-Z0-9\_]* { yylval->text = new String(yytext + 1); return T_IDENTIFIER; }
\<[^ \>]*\> { yytext[yyleng-1] = '\0'; yylval->text = new String(yytext + 1); return T_STRING_ANGLE; }
[0-9]+(\.[0-9]+)?ms { yylval->num = strtod(yytext, NULL) / 1000; return T_NUMBER; }
[0-9]+(\.[0-9]+)?d { yylval->num = strtod(yytext, NULL) * 60 * 60 * 24; return T_NUMBER; }
[0-9]+(\.[0-9]+)?h { yylval->num = strtod(yytext, NULL) * 60 * 60; return T_NUMBER; }
[0-9]+(\.[0-9]+)?m { yylval->num = strtod(yytext, NULL) * 60; return T_NUMBER; }
[0-9]+(\.[0-9]+)?s { yylval->num = strtod(yytext, NULL); return T_NUMBER; }
[0-9]+(\.[0-9]+)? { yylval->num = strtod(yytext, NULL); return T_NUMBER; }
= { yylval->csop = OpSetLiteral; return T_SET; }
\+= { yylval->csop = OpSetAdd; return T_SET_ADD; }
-= { yylval->csop = OpSetSubtract; return T_SET_SUBTRACT; }
\*= { yylval->csop = OpSetMultiply; return T_SET_MULTIPLY; }
\/= { yylval->csop = OpSetDivide; return T_SET_DIVIDE; }
\%= { yylval->csop = OpSetModulo; return T_SET_MODULO; }
\^= { yylval->csop = OpSetXor; return T_SET_XOR; }
\&= { yylval->csop = OpSetBinaryAnd; return T_SET_BINARY_AND; }
\|= { yylval->csop = OpSetBinaryOr; return T_SET_BINARY_OR; }
\+ return T_PLUS;
\- return T_MINUS;
\* return T_MULTIPLY;
\/ return T_DIVIDE_OP;
\% return T_MODULO;
\^ return T_XOR;
\& return T_BINARY_AND;
\| return T_BINARY_OR;
\< return T_LESS_THAN;
\> return T_GREATER_THAN;
}
\( { yyextra->m_IgnoreNewlines.push(true); return '('; }
\) { yyextra->m_IgnoreNewlines.pop(); return ')'; }
[\r\n]+ { yycolumn -= strlen(yytext) - 1; if (!yyextra->m_IgnoreNewlines.top()) { return T_NEWLINE; } }
<<EOF>> { if (!yyextra->m_Eof) { yyextra->m_Eof = true; return T_NEWLINE; } else { yyterminate(); } }
. return yytext[0];
%%
void ConfigCompiler::InitializeScanner()
{
yylex_init(&m_Scanner);
yyset_extra(this, m_Scanner);
}
void ConfigCompiler::DestroyScanner()
{
yylex_destroy(m_Scanner);
}
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