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whitespace - format the source in a more readable way;

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On passing, define the macros as do {... } while (0) to
be free of unwanted side effects.



git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@23175 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Luigi Rizzo
2006-04-28 16:39:25 +00:00
parent c7a892d5f9
commit 8d46a41cb0
2 changed files with 281 additions and 136 deletions
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106
ast_expr2.fl
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@@ -59,9 +59,23 @@ struct val {
#include "ast_expr2.h" /* the o/p of the bison on ast_expr2.y */
#define SET_COLUMNS yylloc_param->first_column = (int)(yyg->yytext_r - YY_CURRENT_BUFFER_LVALUE->yy_ch_buf);yylloc_param->last_column = yylloc_param->last_column + yyleng - 1; yylloc_param->first_line = yylloc_param->last_line = 1
#define SET_STRING yylval_param->val = (struct val *)calloc(sizeof(struct val),1); yylval_param->val->type = AST_EXPR_string; yylval_param->val->u.s = strdup(yytext);
#define SET_NUMERIC_STRING yylval_param->val = (struct val *)calloc(sizeof(struct val),1); yylval_param->val->type = AST_EXPR_numeric_string; yylval_param->val->u.s = strdup(yytext);
#define SET_COLUMNS do { \
yylloc_param->first_column = (int)(yyg->yytext_r - YY_CURRENT_BUFFER_LVALUE->yy_ch_buf); \
yylloc_param->last_column += yyleng - 1; \
yylloc_param->first_line = yylloc_param->last_line = 1; \
} while (0)
#define SET_STRING do { \
yylval_param->val = calloc(1, sizeof(struct val)); \
yylval_param->val->type = AST_EXPR_string; \
yylval_param->val->u.s = strdup(yytext); \
} while (0)
#define SET_NUMERIC_STRING do { \
yylval_param->val = calloc(1, sizeof(struct val)); \
yylval_param->val->type = AST_EXPR_numeric_string; \
yylval_param->val->u.s = strdup(yytext); \
} while (0)
struct parse_io
{
@@ -110,25 +124,81 @@ static char *expr2_token_subst(char *mess);
\:\: { SET_COLUMNS; SET_STRING; return TOK_COLONCOLON;}
\( { SET_COLUMNS; SET_STRING; return TOK_LP;}
\) { SET_COLUMNS; SET_STRING; return TOK_RP;}
\$\{ {/* gather the contents of ${} expressions, with trailing stuff, into a single TOKEN. They are much more complex now than they used to be */
curlycount = 0; BEGIN(var); yymore();}
\$\{ {
/* gather the contents of ${} expressions, with trailing stuff,
* into a single TOKEN.
* They are much more complex now than they used to be
*/
curlycount = 0;
BEGIN(var);
yymore();
}
[ \r] {}
\"[^"]*\" {SET_COLUMNS; SET_STRING; return TOKEN;}
[ \t\r] {}
\"[^"]*\" {SET_COLUMNS; SET_STRING; return TOKEN;}
[\n] {/* what to do with eol */}
[0-9]+ { SET_COLUMNS; /* the original behavior of the expression parser was to bring in numbers as a numeric string */
SET_NUMERIC_STRING;
return TOKEN;}
[\n] {/* what to do with eol */}
[0-9]+ {
SET_COLUMNS;
/* the original behavior of the expression parser was
* to bring in numbers as a numeric string
*/
SET_NUMERIC_STRING;
return TOKEN;
}
[a-zA-Z0-9,.';\\_^$#@]+ {SET_COLUMNS; SET_STRING; return TOKEN;}
[a-zA-Z0-9,.';\\_^$#@]+ {
SET_COLUMNS;
SET_STRING;
return TOKEN;
}
<var>[^{}]*\} {curlycount--; if(curlycount < 0){ BEGIN(trail); yymore();} else { yymore();}}
<var>[^{}]*\{ {curlycount++; yymore(); }
<trail>[^-\t\r \n$():?%/+=*<>!|&]* {BEGIN(0); SET_COLUMNS; SET_STRING; return TOKEN;}
<trail>[-\t\r \n$():?%/+=*<>!|&] {char c = yytext[yyleng-1]; BEGIN(0); unput(c); SET_COLUMNS; SET_STRING; return TOKEN;}
<trail>\$\{ {curlycount = 0; BEGIN(var); yymore(); }
<trail><<EOF>> {BEGIN(0); SET_COLUMNS; SET_STRING; return TOKEN; /*actually, if an expr is only a variable ref, this could happen a LOT */}
<var>[^{}]*\} {
curlycount--;
if (curlycount < 0) {
BEGIN(trail);
yymore();
} else {
yymore();
}
}
<var>[^{}]*\{ {
curlycount++;
yymore();
}
<trail>[^-\t\r \n$():?%/+=*<>!|&]* {
BEGIN(0);
SET_COLUMNS;
SET_STRING;
return TOKEN;
}
<trail>[-\t\r \n$():?%/+=*<>!|&] {
char c = yytext[yyleng-1];
BEGIN(0);
unput(c);
SET_COLUMNS;
SET_STRING;
return TOKEN;
}
<trail>\$\{ {
curlycount = 0;
BEGIN(var);
yymore();
}
<trail><<EOF>> {
BEGIN(0);
SET_COLUMNS;
SET_STRING;
return TOKEN;
/*actually, if an expr is only a variable ref, this could happen a LOT */
}
%%