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-rw-r--r--package/base-files/files/lib/config/template.awk42
1 files changed, 42 insertions, 0 deletions
diff --git a/package/base-files/files/lib/config/template.awk b/package/base-files/files/lib/config/template.awk
new file mode 100644
index 0000000000..faae8b345c
--- /dev/null
+++ b/package/base-files/files/lib/config/template.awk
@@ -0,0 +1,42 @@
+# Copyright (C) 2006 OpenWrt.org
+
+{
+ line=$0
+ gsub(/^[ \t]*/, "")
+ gsub(/[ \t]*$/, "")
+}
+
+$1 == "@define" {
+ v[$2] = $3
+}
+
+$1 == "@ifdef" {
+ if_open = 1
+ if (v[$2] != "") noprint = 0
+ else noprint = 1
+}
+
+$1 == "@ifndef" {
+ if_open = 1
+ if (v[$2] != "") noprint = 1
+ else noprint = 0
+}
+
+$1 == "@else" {
+ if (noprint == 1) noprint = 0
+ else noprint = 1
+}
+
+($1 !~ /^@[a-zA-Z0-9_]/) && (noprint != 1) {
+ n=split(line "@@", a, /@@/)
+ for (i=1; i<=n; i++) {
+ if ((i % 2) == 1) printf "%s" a[i]
+ else printf "%s" v[a[i]]
+ }
+ print ""
+}
+
+$1 == "@endif" {
+ if_open = 0
+ noprint = 0
+}