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

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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
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@ -9,7 +9,7 @@
* *
* *
* IDENTIFICATION * 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 void
yyerror(const char *message) yyerror(const char *message)
{ {
if(yyleng == 1 && *yytext == YY_END_OF_BUFFER_CHAR) const char *loc = token_start ? token_start : yytext;
elog(ERROR, "parser: %s at end of input",message);
else if (*loc == YY_END_OF_BUFFER_CHAR)
elog(ERROR, "parser: %s at or near \"%s\" at character %i", elog(ERROR, "parser: %s at end of input", message);
message,token_start ? token_start : yytext, else
(unsigned int)(yytext - scanbuf + 1)); 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 */ ' - next line' /* this comment is not allowed here */
' - third line' ' - third line'
AS "Illegal comment within continuation"; 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 -- test conversions between various string types
-- E021-10 implicit casting among the character data types -- E021-10 implicit casting among the character data types