Also synced the ecpg lexer with the backend lexer.
This commit is contained in:
Michael Meskes
parent
f39cfbe4be
commit
a5fecda550
@ -1945,6 +1945,10 @@ Tue Oct 4 15:23:00 CEST 2005
|
||||
|
||||
- Synced parser.
|
||||
- Fixed another bug in check to report missing varchar pointer implementation.
|
||||
|
||||
Wed Oct 5 16:57:42 CEST 2005
|
||||
|
||||
- Synced lexer.
|
||||
- Set ecpg library version to 5.1.
|
||||
- Set ecpg version to 4.1.1.
|
||||
|
||||
|
||||
@ -12,7 +12,7 @@
|
||||
*
|
||||
*
|
||||
* IDENTIFICATION
|
||||
* $PostgreSQL: pgsql/src/interfaces/ecpg/preproc/pgc.l,v 1.136 2005/06/16 01:43:48 momjian Exp $
|
||||
* $PostgreSQL: pgsql/src/interfaces/ecpg/preproc/pgc.l,v 1.137 2005/10/05 14:58:36 meskes Exp $
|
||||
*
|
||||
*-------------------------------------------------------------------------
|
||||
*/
|
||||
@ -29,6 +29,8 @@ extern YYSTYPE yylval;
|
||||
|
||||
static int xcdepth = 0; /* depth of nesting in slash-star comments */
|
||||
static char *dolqstart; /* current $foo$ quote start string */
|
||||
bool escape_string_warning;
|
||||
static bool warn_on_first_escape;
|
||||
|
||||
/*
|
||||
* literalbuf is used to accumulate literal values when multiple rules
|
||||
@ -44,6 +46,7 @@ static int literalalloc; /* current allocated buffer size */
|
||||
static void addlit(char *ytext, int yleng);
|
||||
static void addlitchar (unsigned char);
|
||||
static void parse_include (void);
|
||||
static void check_escape_warning(void);
|
||||
|
||||
char *token_start;
|
||||
int state_before;
|
||||
@ -111,48 +114,44 @@ static struct _if_value
|
||||
/* Bit string
|
||||
*/
|
||||
xbstart [bB]{quote}
|
||||
xbstop {quote}
|
||||
xbinside [^']*
|
||||
xbcat {quote}{whitespace_with_newline}{quote}
|
||||
|
||||
/* Hexadecimal number
|
||||
*/
|
||||
/* Hexadecimal number */
|
||||
xhstart [xX]{quote}
|
||||
xhstop {quote}
|
||||
xhinside [^']*
|
||||
xhcat {quote}{whitespace_with_newline}{quote}
|
||||
|
||||
/* National character
|
||||
*/
|
||||
/* National character */
|
||||
xnstart [nN]{quote}
|
||||
|
||||
/* C version of hex number
|
||||
*/
|
||||
/* Quoted string that allows backslash escapes */
|
||||
xestart [eE]{quote}
|
||||
|
||||
/* C version of hex number */
|
||||
xch 0[xX][0-9A-Fa-f]*
|
||||
|
||||
/* Extended quote
|
||||
* xqdouble implements embedded quote
|
||||
* xqcat allows strings to cross input lines
|
||||
* xqdouble implements embedded quote, ''''
|
||||
*/
|
||||
quote '
|
||||
xqstart {quote}
|
||||
xqstop {quote}
|
||||
xqdouble {quote}{quote}
|
||||
xqinside [^\\']+
|
||||
xqescape [\\][^0-7]
|
||||
xqoctesc [\\][0-7]{1,3}
|
||||
xqhexesc [\\]x[0-9A-Fa-f]{1,2}
|
||||
xqcat {quote}{whitespace_with_newline}{quote}
|
||||
|
||||
/* $foo$ style quotes ("dollar quoting")
|
||||
* The quoted string starts with $foo$ where "foo" is an optional string
|
||||
* in the form of an identifier, except that it may not contain "$",
|
||||
* and extends to the first occurrence of an identical string.
|
||||
* There is *no* processing of the quoted text.
|
||||
*
|
||||
* {dolqfailed} is an error rule to avoid scanner backup when {dolqdelim}
|
||||
* fails to match its trailing "$".
|
||||
*/
|
||||
dolq_start [A-Za-z\200-\377_]
|
||||
dolq_cont [A-Za-z\200-\377_0-9]
|
||||
dolqdelim \$({dolq_start}{dolq_cont}*)?\$
|
||||
dolqfailed \${dolq_start}{dolq_cont}*
|
||||
dolqinside [^$]+
|
||||
|
||||
/* Double quote
|
||||
@ -218,11 +217,16 @@ operator {op_chars}+
|
||||
/* we no longer allow unary minus in numbers.
|
||||
* instead we pass it separately to parser. there it gets
|
||||
* coerced via doNegate() -- Leon aug 20 1999
|
||||
*
|
||||
* {realfail1} and {realfail2} are added to prevent the need for scanner
|
||||
* backup when the {real} rule fails to match completely.
|
||||
*/
|
||||
|
||||
integer {digit}+
|
||||
decimal (({digit}*\.{digit}+)|({digit}+\.{digit}*))
|
||||
real ((({digit}*\.{digit}+)|({digit}+\.{digit}*)|({digit}+))([Ee][-+]?{digit}+))
|
||||
real ({integer}|{decimal})[Ee][-+]?{digit}+
|
||||
realfail1 ({integer}|{decimal})[Ee]
|
||||
realfail2 ({integer}|{decimal})[Ee][-+]
|
||||
|
||||
param \${integer}
|
||||
|
||||
@ -262,6 +266,11 @@ whitespace ({space}+|{comment})
|
||||
horiz_whitespace ({horiz_space}|{comment})
|
||||
whitespace_with_newline ({horiz_whitespace}*{newline}{whitespace}*)
|
||||
|
||||
quote '
|
||||
quotestop {quote}{whitespace}*
|
||||
quotecontinue {quote}{whitespace_with_newline}{quote}
|
||||
quotefail {quote}{whitespace}*"-"
|
||||
|
||||
/* special characters for other dbms */
|
||||
/* we have to react differently in compat mode */
|
||||
informix_special [\$]
|
||||
@ -343,6 +352,7 @@ cppline {space}*#(.*\\{space})*.*{newline}
|
||||
|
||||
<xc>{xcinside} { ECHO; }
|
||||
<xc>{op_chars} { ECHO; }
|
||||
<xc>\*+ { ECHO; }
|
||||
|
||||
<xc><<EOF>> { mmerror(PARSE_ERROR, ET_FATAL, "Unterminated /* comment"); }
|
||||
|
||||
@ -352,7 +362,9 @@ cppline {space}*#(.*\\{space})*.*{newline}
|
||||
startlit();
|
||||
addlitchar('b');
|
||||
}
|
||||
<xb>{xbstop} {
|
||||
<xb>{quotestop} |
|
||||
<xb>{quotefail} {
|
||||
yyless(1);
|
||||
BEGIN(SQL);
|
||||
if (literalbuf[strspn(literalbuf, "01") + 1] != '\0')
|
||||
mmerror(PARSE_ERROR, ET_ERROR, "invalid bit string input.");
|
||||
@ -362,8 +374,8 @@ cppline {space}*#(.*\\{space})*.*{newline}
|
||||
|
||||
<xh>{xhinside} |
|
||||
<xb>{xbinside} { addlit(yytext, yyleng); }
|
||||
<xh>{xhcat} |
|
||||
<xb>{xbcat} { /* ignore */ }
|
||||
<xh>{quotecontinue} |
|
||||
<xb>{quotecontinue} { /* ignore */ }
|
||||
<xb><<EOF>> { mmerror(PARSE_ERROR, ET_FATAL, "Unterminated bit string"); }
|
||||
|
||||
<SQL>{xhstart} {
|
||||
@ -371,44 +383,71 @@ cppline {space}*#(.*\\{space})*.*{newline}
|
||||
BEGIN(xh);
|
||||
startlit();
|
||||
addlitchar('x');
|
||||
}
|
||||
<xh>{xhstop} {
|
||||
yylval.str = mm_strdup(literalbuf);
|
||||
return XCONST;
|
||||
}
|
||||
}
|
||||
<xh>{quotestop} |
|
||||
<xh>{quotefail} {
|
||||
yyless(1);
|
||||
BEGIN(SQL);
|
||||
yylval.str = mm_strdup(literalbuf);
|
||||
return XCONST;
|
||||
}
|
||||
|
||||
<xh><<EOF>> { mmerror(PARSE_ERROR, ET_FATAL, "Unterminated hexadecimal integer"); }
|
||||
<SQL>{xnstart} {
|
||||
/* National character.
|
||||
* Need to remember type info to flow it forward into the parser.
|
||||
* Not yet implemented. - thomas 2002-06-17
|
||||
* Transfer it as-is to the backend.
|
||||
*/
|
||||
token_start = yytext;
|
||||
BEGIN(xq);
|
||||
startlit();
|
||||
}
|
||||
<C,SQL>{xqstart} {
|
||||
token_start = yytext;
|
||||
state_before = YYSTATE;
|
||||
BEGIN(xq);
|
||||
startlit();
|
||||
}
|
||||
<xq>{xqstop} {
|
||||
BEGIN(state_before);
|
||||
yylval.str = mm_strdup(literalbuf);
|
||||
return SCONST;
|
||||
}
|
||||
warn_on_first_escape = true;
|
||||
token_start = yytext;
|
||||
state_before = YYSTATE;
|
||||
BEGIN(xq);
|
||||
startlit();
|
||||
}
|
||||
<C,SQL>{xestart} {
|
||||
warn_on_first_escape = false;
|
||||
token_start = yytext;
|
||||
state_before = YYSTATE;
|
||||
BEGIN(xq);
|
||||
startlit();
|
||||
}
|
||||
<xq>{quotestop} |
|
||||
<xq>{quotefail} {
|
||||
yyless(1);
|
||||
BEGIN(state_before);
|
||||
yylval.str = mm_strdup(literalbuf);
|
||||
return SCONST;
|
||||
}
|
||||
<xq>{xqdouble} { addlitchar('\''); }
|
||||
<xq>{xqinside} { addlit(yytext, yyleng); }
|
||||
<xq>{xqescape} { addlit(yytext, yyleng); }
|
||||
<xq>{xqoctesc} { addlit(yytext, yyleng); }
|
||||
<xq>{xqhexesc} { addlit(yytext, yyleng); }
|
||||
<xq>{xqcat} { /* ignore */ }
|
||||
<xq>{xqescape} {
|
||||
check_escape_warning();
|
||||
addlit(yytext, yyleng);
|
||||
}
|
||||
<xq>{xqoctesc} {
|
||||
check_escape_warning();
|
||||
addlit(yytext, yyleng);
|
||||
}
|
||||
<xq>{xqhexesc} {
|
||||
check_escape_warning();
|
||||
addlit(yytext, yyleng);
|
||||
}
|
||||
<xq>{quotecontinue} { /* ignore */ }
|
||||
<xq>. {
|
||||
/* This is only needed for \ just before EOF */
|
||||
addlitchar(yytext[0]);
|
||||
}
|
||||
<xq><<EOF>> { mmerror(PARSE_ERROR, ET_FATAL, "Unterminated quoted string"); }
|
||||
<SQL>{dolqfailed} {
|
||||
/* throw back all but the initial "$" */
|
||||
yyless(1);
|
||||
/* and treat it as {other} */
|
||||
return yytext[0];
|
||||
}
|
||||
<SQL>{dolqdelim} {
|
||||
token_start = yytext;
|
||||
dolqstart = mm_strdup(yytext);
|
||||
@ -434,9 +473,8 @@ cppline {space}*#(.*\\{space})*.*{newline}
|
||||
yyless(yyleng-1);
|
||||
}
|
||||
}
|
||||
<xdolq>{dolqinside} {
|
||||
addlit(yytext, yyleng);
|
||||
}
|
||||
<xdolq>{dolqinside} { addlit(yytext, yyleng); }
|
||||
<xdolq>{dolqfailed} { addlit(yytext, yyleng); }
|
||||
<xdolq>. {
|
||||
/* This is only needed for $ inside the quoted text */
|
||||
addlitchar(yytext[0]);
|
||||
@ -588,11 +626,21 @@ cppline {space}*#(.*\\{space})*.*{newline}
|
||||
{decimal} {
|
||||
yylval.str = mm_strdup(yytext);
|
||||
return FCONST;
|
||||
}
|
||||
}
|
||||
<C,SQL>{real} {
|
||||
yylval.str = mm_strdup(yytext);
|
||||
return FCONST;
|
||||
}
|
||||
}
|
||||
<SQL>{realfail1} {
|
||||
yyless(yyleng-1);
|
||||
yylval.str = mm_strdup(yytext);
|
||||
return FCONST;
|
||||
}
|
||||
<SQL>{realfail2} {
|
||||
yyless(yyleng-2);
|
||||
yylval.str = mm_strdup(yytext);
|
||||
return FCONST;
|
||||
}
|
||||
<SQL>:{identifier}((("->"|\.){identifier})|(\[{array}\]))* {
|
||||
yylval.str = mm_strdup(yytext+1);
|
||||
return(CVARIABLE);
|
||||
@ -1189,3 +1237,11 @@ parse_include(void)
|
||||
|
||||
BEGIN C;
|
||||
}
|
||||
|
||||
static void
|
||||
check_escape_warning(void)
|
||||
{
|
||||
if (warn_on_first_escape && escape_string_warning)
|
||||
mmerror (PARSE_ERROR, ET_WARNING, "nonstandard use of escape in a string literal");
|
||||
warn_on_first_escape = false; /* warn only once per string */
|
||||
}
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user