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Code review for 'at character n' patch --- point at proper end of 

a token scanned by multiple lex rules.
This commit is contained in:
Tom Lane 2002-08-18 03:35:08 +00:00
parent 2c6b34d959
commit 2efb8e8070
2 changed files with 9 additions and 8 deletions
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15
src/backend/parser/scan.l
View File

@ -9,7 +9,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/parser/scan.l,v 1.99 2002/08/17 13:06:50 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/parser/scan.l,v 1.100 2002/08/18 03:35:08 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -582,12 +582,13 @@ other .
void
yyerror(const char *message)
{
if(yyleng == 1 && *yytext == YY_END_OF_BUFFER_CHAR)
elog(ERROR, "parser: %s at end of input",message);
else
elog(ERROR, "parser: %s at or near \"%s\" at character %i",
message,token_start ? token_start : yytext,
(unsigned int)(yytext - scanbuf + 1));
const char *loc = token_start ? token_start : yytext;
if (*loc == YY_END_OF_BUFFER_CHAR)
elog(ERROR, "parser: %s at end of input", message);
else
elog(ERROR, "parser: %s at or near \"%s\" at character %d",
message, loc, (loc - scanbuf + 1));
}

2
src/test/regress/expected/strings.out
View File

@ -18,7 +18,7 @@ SELECT 'first line'
' - next line' /* this comment is not allowed here */
' - third line'
AS "Illegal comment within continuation";
ERROR: parser: parse error at or near "' - third line'" at character 89
ERROR: parser: parse error at or near "' - third line'" at character 75
--
-- test conversions between various string types
-- E021-10 implicit casting among the character data types