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Fix plpgsql lexer to accept Windows-style and Mac-style newlines as

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newlines.
This commit is contained in:
Tom Lane 2000-08-22 14:59:28 +00:00
parent 84d0865d03
commit f9b2f9bb76
1 changed files with 45 additions and 28 deletions
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43
src/pl/plpgsql/src/scan.l
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@ -4,7 +4,7 @@
* procedural language * procedural language
* *
* IDENTIFICATION * IDENTIFICATION
* $Header: /cvsroot/pgsql/src/pl/plpgsql/src/Attic/scan.l,v 1.4 2000/06/20 16:40:10 petere Exp $ * $Header: /cvsroot/pgsql/src/pl/plpgsql/src/Attic/scan.l,v 1.5 2000/08/22 14:59:28 tgl Exp $
* *
* This software is copyrighted by Jan Wieck - Hamburg. * This software is copyrighted by Jan Wieck - Hamburg.
* *
@ -40,11 +40,13 @@ static char *plpgsql_source;
static int plpgsql_bytes_left; static int plpgsql_bytes_left;
static int scanner_functype; static int scanner_functype;
static int scanner_typereported; static int scanner_typereported;
int plpgsql_SpaceScanned = 0; int plpgsql_SpaceScanned = 0;
extern int yylineno; extern int yylineno;
static void plpgsql_input(char *buf, int *result, int max); static void plpgsql_input(char *buf, int *result, int max);
#define YY_INPUT(buf,res,max) plpgsql_input(buf, &res, max) #define YY_INPUT(buf,res,max) plpgsql_input(buf, &res, max)
#define YY_NO_UNPUT #define YY_NO_UNPUT
%} %}
@ -74,7 +76,8 @@ WC [[:alnum:]_"]
* functions type (T_FUNCTION or T_TRIGGER) * functions type (T_FUNCTION or T_TRIGGER)
* ---------- * ----------
*/ */
if (!scanner_typereported) { if (!scanner_typereported)
{
scanner_typereported = 1; scanner_typereported = 1;
return scanner_functype; return scanner_functype;
} }
@ -143,13 +146,13 @@ dump { return O_DUMP; }
* Ignore whitespaces but remember this happened * Ignore whitespaces but remember this happened
* ---------- * ----------
*/ */
[ \t\n]+ { plpgsql_SpaceScanned = 1; } [ \t\r\n]+ { plpgsql_SpaceScanned = 1; }
/* ---------- /* ----------
* Eat up comments * Eat up comments
* ---------- * ----------
*/ */
--[^\n]* ; --[^\r\n]* ;
\/\* { start_lineno = yylineno; \/\* { start_lineno = yylineno;
BEGIN IN_COMMENT; BEGIN IN_COMMENT;
} }
@ -188,20 +191,23 @@ dump { return O_DUMP; }
%% %%
int yywrap() int
yywrap()
{ {
return 1; return 1;
} }
static void plpgsql_input(char *buf, int *result, int max) static void
plpgsql_input(char *buf, int *result, int max)
{ {
int n = max; int n = max;
if (n > plpgsql_bytes_left) {
n = plpgsql_bytes_left;
}
if (n == 0) { if (n > plpgsql_bytes_left)
n = plpgsql_bytes_left;
if (n == 0)
{
*result = YY_NULL; *result = YY_NULL;
return; return;
} }
@ -213,18 +219,29 @@ static void plpgsql_input(char *buf, int *result, int max)
} }
void plpgsql_setinput(char *source, int functype) void
plpgsql_setinput(char *source, int functype)
{ {
yyrestart(NULL); yyrestart(NULL);
yylineno = 1; yylineno = 1;
plpgsql_source = source; plpgsql_source = source;
/*----------
* Hack: skip any initial newline, so that in the common coding layout
* CREATE FUNCTION ... AS '
* code body
* ' LANGUAGE 'plpgsql';
* we will think "line 1" is what the programmer thinks of as line 1.
*----------
*/
if (*plpgsql_source == '\r')
plpgsql_source++;
if (*plpgsql_source == '\n') if (*plpgsql_source == '\n')
plpgsql_source++; plpgsql_source++;
plpgsql_bytes_left = strlen(plpgsql_source); plpgsql_bytes_left = strlen(plpgsql_source);
scanner_functype = functype; scanner_functype = functype;
scanner_typereported = 0; scanner_typereported = 0;
} }