# HG changeset patch
# User tuomov
# Date 960051643 -7200
# Node ID 91f0c87b62a732cf78c5dde295a01b705ba7c28b
# Parent  9eb09d246c9fe4e1eac78279711a9e5ac1b7a5f0
trunk: changeset 17
Default include path support

diff -r 9eb09d246c9f -r 91f0c87b62a7 include/libtu/tokenizer.h
--- a/include/libtu/tokenizer.h	Fri May 26 18:34:04 2000 +0200
+++ b/include/libtu/tokenizer.h	Sat Jun 03 19:00:43 2000 +0200
@@ -172,18 +172,22 @@
 
 	int filestack_n;
 	Tokenizer_FInfo *filestack;
+	
+	char **includepaths;
 } Tokenizer;
 
 
 extern Tokenizer *tokz_open(const char *fname);
-extern Tokenizer *tokz_open_file(FILE *file);
+extern Tokenizer *tokz_open_file(FILE *file, const char *fname);
 extern void tokz_close(Tokenizer *tokz);
 extern bool tokz_get_token(Tokenizer *tokz, Token *tok);
 extern void tokz_unget_token(Tokenizer *tokz, Token *tok);
 extern void tokz_warn_error(const Tokenizer *tokz, int line, int e);
 
 extern bool tokz_pushf(Tokenizer *tokz, const char *fname);
-extern bool tokz_pushf_file(Tokenizer *tokz, FILE *file);
+extern bool tokz_pushf_file(Tokenizer *tokz, FILE *file, const char *fname);
 extern bool tokz_popf(Tokenizer *tokz);
 
+extern void tokz_set_includepaths(Tokenizer *tokz, char **paths);
+
 #endif /* LIBTU_TOKENIZER_H */
diff -r 9eb09d246c9f -r 91f0c87b62a7 parser.c
--- a/parser.c	Fri May 26 18:34:04 2000 +0200
+++ b/parser.c	Sat Jun 03 19:00:43 2000 +0200
@@ -6,6 +6,7 @@
  */
 
 #include <string.h>
+#include <errno.h>
 
 #include <libtu/parser.h>
 #include <libtu/misc.h>
@@ -423,7 +424,7 @@
 	Tokenizer *tokz;
 	bool ret;
 	
-	tokz=tokz_open_file(file);
+	tokz=tokz_open_file(file, NULL);
 	
 	if(tokz==NULL)
 		return FALSE;
@@ -581,35 +582,81 @@
 /* */
 
 
-static bool opt_include(Tokenizer *tokz, int n, Token *toks)
+static bool try_include(Tokenizer *tokz, const char *fname)
 {
-	const char *fname=TOK_STRING_VAL(toks+1);
-	const char *lastndx;
+	FILE *f;
+	
+	f=fopen(fname, "r");
+	
+	if(f==NULL)
+		return FALSE;
+	
+	if(!tokz_pushf_file(tokz, f, fname)){
+		fclose(f);
+		return FALSE;
+	}
+	
+	return TRUE;
+}
+
+
+static bool try_include_dir(Tokenizer *tokz, const char *dir, int dlen,
+						const char *file)
+{
 	char *tmpname;
 	bool retval;
 	
-	if(fname[0]=='/' || tokz->name==NULL)
-		goto thisdir;
-	
-	lastndx=strrchr(tokz->name, '/');
-	
-	if(lastndx==NULL)
-		goto thisdir;
-	
-	tmpname=scatn(tokz->name, lastndx-tokz->name+1, fname, -1);
+	tmpname=scatn(dir, dlen, file, -1);
 	
 	if(tmpname==NULL){
 		warn_err();
 		return FALSE;
 	}
 	
-	retval=tokz_pushf(tokz, tmpname);
-	
+	retval=try_include(tokz, tmpname);
+
 	free(tmpname);
-	
+
 	return retval;
-
-thisdir:
-	return tokz_pushf(tokz, fname);
 }
 
+
+static bool opt_include(Tokenizer *tokz, int n, Token *toks)
+{
+	const char *fname=TOK_STRING_VAL(toks+1);
+	const char *lastndx=NULL;
+	bool retval, e;
+	int i=0;
+	
+	if(fname[0]!='/' && tokz->name!=NULL)
+		lastndx=strrchr(tokz->name, '/');
+	
+	if(lastndx==NULL)
+		retval=try_include(tokz, fname);
+	else
+		retval=try_include_dir(tokz, tokz->name, lastndx-tokz->name+1, fname);
+	
+	if(retval==TRUE)
+		return TRUE;
+	
+	e=errno;
+	
+	if(tokz->includepaths!=NULL){
+		while(tokz->includepaths[i]!=NULL){
+			if(try_include_dir(tokz, tokz->includepaths[i], -1, fname))
+				return TRUE;
+			i++;
+		}
+	}
+	
+	warn_obj(fname, "%s", strerror(e));
+	
+	return FALSE;
+}
+
+
+extern void tokz_set_includepaths(Tokenizer *tokz, char **paths)
+{
+	tokz->includepaths=paths;
+}
+
diff -r 9eb09d246c9f -r 91f0c87b62a7 tokenizer.c
--- a/tokenizer.c	Fri May 26 18:34:04 2000 +0200
+++ b/tokenizer.c	Sat Jun 03 19:00:43 2000 +0200
@@ -718,20 +718,32 @@
 }
 
 
-bool tokz_pushf_file(Tokenizer *tokz, FILE *file)
+bool tokz_pushf_file(Tokenizer *tokz, FILE *file, const char *fname)
 {
+	char *fname_copy=NULL;
+	
 	if(file==NULL)
 		return FALSE;
-	
-	if(tokz->file!=NULL){
-		if(!do_tokz_pushf(tokz)){
+
+	if(fname!=NULL){
+		fname_copy=scopy(fname);
+		if(fname_copy==NULL){
 			warn_err();
 			return FALSE;
 		}
 	}
 	
+	if(tokz->file!=NULL){
+		if(!do_tokz_pushf(tokz)){
+			warn_err();
+			if(fname_copy!=NULL)
+				free(fname_copy);
+			return FALSE;
+		}
+	}
+	
 	tokz->file=file;
-	tokz->name=NULL;
+	tokz->name=fname_copy;
 	tokz->line=1;
 	tokz->ungetc=-1;	
 	tokz->ungettok.type=TOK_INVALID;
@@ -743,7 +755,6 @@
 bool tokz_pushf(Tokenizer *tokz, const char *fname)
 {
 	FILE *file;
-	char *fname_copy;
 	
 	file=fopen(fname, "r");
 	
@@ -752,25 +763,12 @@
 		return FALSE;
 	}
 	
-	fname_copy=scopy(fname);
-	
-	if(fname_copy==NULL){
-		warn_err();
-		goto err1;
+	if(!tokz_pushf_file(tokz, file, fname)){
+		fclose(file);
+		return FALSE;
 	}
 
-	if(!tokz_pushf_file(tokz, file))
-		goto err2;
-
-	tokz->name=fname_copy;
-
 	return TRUE;
-	
-err2:
-	free(fname_copy);
-err1:
-	fclose(file);
-	return FALSE;
 }
 
 
@@ -816,13 +814,13 @@
 }
 
 
-Tokenizer *tokz_open_file(FILE *file)
+Tokenizer *tokz_open_file(FILE *file, const char *fname)
 {
 	Tokenizer *tokz;
 	
 	tokz=tokz_create();
 	
-	if(!tokz_pushf_file(tokz, file)){
+	if(!tokz_pushf_file(tokz, file, fname)){
 		free(tokz);
 		return NULL;
 	}