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isc_lex_setsourcename(), for use when lexing buffers or streams

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This commit is contained in:
Brian Wellington 2002-02-21 00:44:16 +00:00
parent 8cf24d101a
commit 02e5f92113
2 changed files with 38 additions and 4 deletions
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17
lib/isc/include/isc/lex.h
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@ -15,7 +15,7 @@
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: lex.h,v 1.28 2002/02/20 03:35:33 marka Exp $ */
/* $Id: lex.h,v 1.29 2002/02/21 00:44:16 bwelling Exp $ */
#ifndef ISC_LEX_H
#define ISC_LEX_H 1
@ -376,6 +376,21 @@ isc_lex_getsourceline(isc_lex_t *lex);
* Current line number or 0 if no current source.
*/
isc_result_t
isc_lex_setsourcename(isc_lex_t *lex, const char *name);
/*
* Assigns a new name to the input source.
*
* Requires:
*
* 'lex' is a valid lexer.
*
* Returns:
* ISC_R_SUCCESS
* ISC_R_NOMEMORY
* ISC_R_NOTFOUND - there are no sources.
*/
isc_boolean_t
isc_lex_isfile(isc_lex_t *lex);
/*

25
lib/isc/lex.c
View file

@ -15,7 +15,7 @@
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: lex.c,v 1.72 2001/12/13 06:13:44 marka Exp $ */
/* $Id: lex.c,v 1.73 2002/02/21 00:44:14 bwelling Exp $ */
#include <config.h>
@ -869,7 +869,7 @@ isc_lex_getsourcename(isc_lex_t *lex) {
source = HEAD(lex->sources);
if (source == NULL)
return(NULL);
return (NULL);
return (source->name);
}
@ -882,11 +882,30 @@ isc_lex_getsourceline(isc_lex_t *lex) {
source = HEAD(lex->sources);
if (source == NULL)
return(0);
return (0);
return (source->line);
}
isc_result_t
isc_lex_setsourcename(isc_lex_t *lex, const char *name) {
inputsource *source;
char *newname;
REQUIRE(VALID_LEX(lex));
source = HEAD(lex->sources);
if (source == NULL)
return(ISC_R_NOTFOUND);
newname = isc_mem_strdup(lex->mctx, name);
if (newname == NULL)
return (ISC_R_NOMEMORY);
isc_mem_free(lex->mctx, source->name);
source->name = newname;
return (ISC_R_SUCCESS);
}
isc_boolean_t
isc_lex_isfile(isc_lex_t *lex) {
inputsource *source;