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-rw-r--r--rvs/wrapper/plugin-parse.c132
1 files changed, 132 insertions, 0 deletions
diff --git a/rvs/wrapper/plugin-parse.c b/rvs/wrapper/plugin-parse.c
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+/* wrapper/plugin-parse.c -- parse rvs plugin config files
+ system depends: <stdio.h> <string.h> <error.h>
+ Copyright (C) 2009 Luke Shumaker
+
+ This file is part of rvs.
+
+ rvs is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your
+ option) any later version.
+
+ rvs is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ See the GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with rvs; see the file COPYING.
+ If not, write to the Free Software Foundation,
+ 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+*/
+
+#include <stdio.h>
+#include <string.h>
+#include <error.h> /* only used in `plugin_parse_escape' for `error' */
+
+#include "rvs.h"
+#include "plugins.h"
+
+#include "plugin-parse.h"
+
+void
+plugin_parse_comment (FILE *file)
+{
+ char c;
+ while ( (c=getc(file)) != EOF ) {
+ if ( c == '\n' ) {
+ ungetc (c, file);
+ break;
+ }
+ }
+}
+
+char
+plugin_parse_escape(FILE *file)
+{
+ char c=getc(file);
+ switch (c) {
+ case 'n':
+ c = '\n';
+ case '\\':
+ case '#':
+ case ':':
+ break;
+ default:
+ error(EXIT_FAILURE,0,"syntax error");
+ break;
+ }
+ return c;
+}
+
+#define _parse_share(string) \
+ case '#':\
+ plugin_parse_comment(file);\
+ break;\
+ case '\\':\
+ c[0]=plugin_parse_escape(file);\
+ default:\
+ stradds(&nbytes,string,(char *)&c);\
+ break;
+
+char *
+plugin_parse_depend (FILE *file)
+{
+ size_t nbytes = 10;
+ char *string = (char *)xmalloc(nbytes);
+ string[0]='\0';
+
+ char c[2] = " \0";
+ while ( (c[0]=getc(file)) != EOF ) {
+ switch (c[0]) {
+ case '\n':
+ ungetc (c[0], file);
+ return string;
+ break;
+ _parse_share(&string)
+ }
+ }
+ return string;
+}
+
+struct plugin_command *
+plugin_parse (struct plugin *plugin, FILE *file)
+{
+ struct plugin_command *command;
+
+ char c[2] = " \0";
+ c[0]=getc(file);
+
+ if (c[0]==EOF)
+ command=NULL;
+ else {
+ ungetc (c[0], file);
+ command=plugin_mk_command();
+ command->plugin=plugin;
+
+ size_t nbytes = 10;
+ command->name = (char *)xmalloc(nbytes);
+ command->name[0]='\0';
+
+ while ( (c[0]=getc(file)) != EOF ) {
+ switch (c[0]) {
+ case '\n':
+ /*if (strlen(command->name)==0) {*/
+ if (command->name[0]=='\0') {
+ plugin_free_command(command);
+ return plugin_parse(plugin,file);
+ } else
+ command->next=plugin_parse(
+ plugin,file);
+ break;
+ case ':':
+ command->depends=plugin_parse_depend(
+ file);
+ break;
+ _parse_share(&(command->name))
+ }
+ }
+ }
+ return command;
+}
+