Create parse_util with some of the non-public functions from pkg_parse.c

[oweals/opkg-lede.git] / libopkg / parse_util.c

diff --git a/libopkg/parse_util.c b/libopkg/parse_util.c
new file mode 100644 (file)
index 0000000..e01b124
--- /dev/null
+++ b/libopkg/parse_util.c
@@ -0,0 +1,88 @@
+/* parse_util.c - the opkg package management system
+
+   Copyright (C) 2009 Ubiq Technologies <graham.gower@gmail.com>
+
+   Steven M. Ayer
+   Copyright (C) 2002 Compaq Computer Corporation
+
+   This program 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.
+
+   This program 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.
+*/
+
+#include <ctype.h>
+
+#include "opkg_utils.h"
+#include "libbb/libbb.h"
+
+#include "parse_util.h"
+
+int
+is_field(const char *type, const char *line)
+{
+       if (!strncmp(line, type, strlen(type)))
+               return 1;
+       return 0;
+}
+
+char *
+parse_simple(const char *type, const char *line)
+{
+       return trim_xstrdup(line + strlen(type) + 1);
+}
+
+/*
+ * Parse a comma separated string into an array.
+ */
+char **
+parse_list(const char *raw, unsigned int *count, const char sep, int skip_field)
+{
+       char **depends = NULL;
+       const char *start, *end;
+       int line_count = 0;
+
+       /* skip past the "Field:" marker */
+       if (!skip_field) {
+       while (*raw && *raw != ':')
+               raw++;
+       raw++;
+       }
+
+       if (line_is_blank(raw)) {
+               *count = line_count;
+               return NULL;
+       }
+
+       while (*raw) {
+               depends = xrealloc(depends, sizeof(char *) * (line_count + 1));
+       
+               while (isspace(*raw))
+                       raw++;
+
+               start = raw;
+               while (*raw != sep && *raw)
+                       raw++;
+               end = raw;
+
+               while (end > start && isspace(*end))
+                       end--;
+
+               if (sep == ' ')
+                       end++;
+
+               depends[line_count] = xstrndup(start, end-start);
+
+               line_count++;
+               if (*raw == sep)
+                   raw++;
+       }
+
+       *count = line_count;
+       return depends;
+}