replace the pathetic mutt_parse_rfc822_line function with a really better

[apps/madmutt.git] / lib-mime / rfc822hdrs.sh

diff --git a/lib-mime/rfc822hdrs.sh b/lib-mime/rfc822hdrs.sh
new file mode 100644 (file)
index 0000000..1124536
--- /dev/null
+++ b/lib-mime/rfc822hdrs.sh
@@ -0,0 +1,42 @@
+#! /bin/sh
+
+die() {
+    echo "$@" 1>&2
+    exit 2
+}
+
+do_h() {
+    echo "#ifndef MUTT_LIB_MIME_RFC822HDRS_H"
+    echo "#define MUTT_LIB_MIME_RFC822HDRS_H"
+    echo "/* THIS FILE IS AUTOGENERATED FROM $< DO NOT MODIFY */"
+    echo "enum rfc822hdr {"
+    echo "    HDR_UNKNOWN,"
+    tr 'a-z-' 'A-Z_' | sed -e 's/.*/    HDR_&,/'
+    echo "};"
+    echo
+    echo "enum rfc822hdr rfc822_well_known(const char *s);"
+    echo "#endif /* MUTT_LIB_MIME_RFC822HDRS_H */"
+}
+
+do_c() {
+    echo "%{"
+    echo "#include <string.h>"
+    echo "#include \"rfc822hdrs.h\""
+    echo "%}"
+    echo "struct hdr { const char *name; int val; };"
+    echo "%%"
+    awk '{print $$0 ", " NR }'
+    echo "%%"
+    echo "enum rfc822hdr rfc822_well_known(const char *s) {"
+    echo "    const struct hdr *res = in_word_set(s, strlen(s));"
+    echo "    return res ? res->val : HDR_UNKNOWN;"
+    echo "}"
+}
+
+case "$1" in
+    *.h) do_h > "$1" ;;
+    *.c) do_c | gperf --ignore-case -t -C -F,0 > "$1" ;;
+    *)  die "you must ask for the 'h' or 'c' generation" ;;
+esac
+
+exit 0