141 строка
4.2 KiB
C
141 строка
4.2 KiB
C
%option nounput
|
|
|
|
%{ /* -*- C -*- */
|
|
#include "opal_config.h"
|
|
|
|
#include <stdio.h>
|
|
#ifdef HAVE_UNISTD_H
|
|
#include <unistd.h>
|
|
#endif
|
|
|
|
#include "coll_ml_lex.h"
|
|
|
|
BEGIN_C_DECLS
|
|
|
|
/*
|
|
* local functions
|
|
*/
|
|
static int coll_ml_config_yywrap(void);
|
|
|
|
END_C_DECLS
|
|
|
|
/*
|
|
* global variables
|
|
*/
|
|
int coll_ml_config_yynewlines = 1;
|
|
bool coll_ml_config_parse_done = false;
|
|
char *coll_ml_config_string = NULL;
|
|
|
|
%}
|
|
|
|
WHITE [\f\t\v ]
|
|
CHAR [A-Za-z0-9_\-\.]
|
|
NAME_CHAR [A-Za-z0-9_\-\.\\\/]
|
|
|
|
%x comment
|
|
%x section_name
|
|
%x collective_name
|
|
%x section_end
|
|
%x collective_end
|
|
%x value
|
|
|
|
%%
|
|
|
|
{WHITE}*\n { ++coll_ml_config_yynewlines;
|
|
return COLL_ML_CONFIG_PARSE_NEWLINE; }
|
|
#.*\n { ++coll_ml_config_yynewlines;
|
|
return COLL_ML_CONFIG_PARSE_NEWLINE; }
|
|
"//".*\n { ++coll_ml_config_yynewlines;
|
|
return COLL_ML_CONFIG_PARSE_NEWLINE; }
|
|
|
|
"/*" { BEGIN(comment);
|
|
return COLL_ML_CONFIG_PARSE_NEWLINE; }
|
|
<comment>[^*\n]* ; /* Eat up non '*'s */
|
|
<comment>"*"+[^*/\n]* ; /* Eat '*'s not followed by a '/' */
|
|
<comment>\n { ++coll_ml_config_yynewlines;
|
|
return COLL_ML_CONFIG_PARSE_NEWLINE; }
|
|
<comment>"*"+"/" { BEGIN(INITIAL); /* Done with block comment */
|
|
return COLL_ML_CONFIG_PARSE_NEWLINE; }
|
|
|
|
{WHITE}*\[{WHITE}* { BEGIN(collective_name); }
|
|
<collective_name>({NAME_CHAR}|{WHITE})*{NAME_CHAR}/{WHITE}*\] {
|
|
BEGIN(collective_end);
|
|
return COLL_ML_CONFIG_PARSE_COLLECTIVE; }
|
|
<collective_name>\n { ++coll_ml_config_yynewlines;
|
|
return COLL_ML_CONFIG_PARSE_ERROR; }
|
|
<collective_name>. { return COLL_ML_CONFIG_PARSE_ERROR; }
|
|
<collective_end>{WHITE}*\]{WHITE}*\n {
|
|
BEGIN(INITIAL);
|
|
++coll_ml_config_yynewlines;
|
|
return COLL_ML_CONFIG_PARSE_NEWLINE; }
|
|
|
|
{WHITE}*\<{WHITE}* { BEGIN(section_name); }
|
|
<section_name>({NAME_CHAR}|{WHITE})*{NAME_CHAR}/{WHITE}*\> {
|
|
BEGIN(section_end);
|
|
return COLL_ML_CONFIG_PARSE_SECTION; }
|
|
<section_name>\n { ++coll_ml_config_yynewlines;
|
|
return COLL_ML_CONFIG_PARSE_ERROR; }
|
|
<section_name>. { return COLL_ML_CONFIG_PARSE_ERROR; }
|
|
<section_end>{WHITE}*\>{WHITE}*\n {
|
|
BEGIN(INITIAL);
|
|
++coll_ml_config_yynewlines;
|
|
return COLL_ML_CONFIG_PARSE_NEWLINE; }
|
|
|
|
{WHITE}*"="{WHITE}* { BEGIN(value);
|
|
return COLL_ML_CONFIG_PARSE_EQUAL; }
|
|
{WHITE}+ ; /* whitespace */
|
|
{CHAR}+ { return COLL_ML_CONFIG_PARSE_SINGLE_WORD; }
|
|
|
|
<value>{WHITE}*\n { BEGIN(INITIAL);
|
|
++coll_ml_config_yynewlines;
|
|
return COLL_ML_CONFIG_PARSE_NEWLINE; }
|
|
<value>[^\n]*[^\t \n]/[\t ]* {
|
|
return COLL_ML_CONFIG_PARSE_VALUE; }
|
|
|
|
. { return COLL_ML_CONFIG_PARSE_ERROR; }
|
|
%%
|
|
|
|
/* Old flex (2.5.4a? and older) does not define a destroy function */
|
|
#if !defined(YY_FLEX_SUBMINOR_VERSION)
|
|
#define YY_FLEX_SUBMINOR_VERSION 0
|
|
#endif
|
|
|
|
#if (YY_FLEX_MAJOR_VERSION < 2) || (YY_FLEX_MAJOR_VERSION == 2 && (YY_FLEX_MINOR_VERSION < 5 || (YY_FLEX_MINOR_VERSION == 5 && YY_FLEX_SUBMINOR_VERSION < 5)))
|
|
int coll_ml_config_yylex_destroy(void)
|
|
{
|
|
if (NULL != YY_CURRENT_BUFFER) {
|
|
yy_delete_buffer(YY_CURRENT_BUFFER);
|
|
#if defined(YY_CURRENT_BUFFER_LVALUE)
|
|
YY_CURRENT_BUFFER_LVALUE = NULL;
|
|
#else
|
|
YY_CURRENT_BUFFER = NULL;
|
|
#endif /* YY_CURRENT_BUFFER_LVALUE */
|
|
}
|
|
return YY_NULL;
|
|
}
|
|
#endif
|
|
|
|
static int coll_ml_config_yywrap(void)
|
|
{
|
|
coll_ml_config_parse_done = true;
|
|
return 1;
|
|
}
|
|
|
|
|
|
/*
|
|
* Ensure that we have a valid yybuffer to use. Specifically, if this
|
|
* scanner is invoked a second time, finish_parsing() (above) will
|
|
* have been executed, and the current buffer will have been freed.
|
|
* Flex doesn't recognize this fact because as far as it's concerned,
|
|
* its internal state was already initialized, so it thinks it should
|
|
* have a valid buffer. Hence, here we ensure to give it a valid
|
|
* buffer.
|
|
*/
|
|
int coll_ml_config_init_buffer(FILE *file)
|
|
{
|
|
YY_BUFFER_STATE buf = yy_create_buffer(file, YY_BUF_SIZE);
|
|
yy_switch_to_buffer(buf);
|
|
|
|
return 0;
|
|
}
|