Initial bits to start work on revamping the buildsystem

1 files changed, 78 insertions, 0 deletions

diff --git a/scripts/kconfig/help.l b/scripts/kconfig/help.l
new file mode 100644
index 0000000..5ac4c2f
--- a/dev/null
+++ b/scripts/kconfig/help.l
@@ -0,0 +1,78 @@
+%option nounput nostdinit noyywrap 8bit
+%x ENTRY
+%{
+/*
+ * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
+ * Released under the terms of the GNU GPL v2.0.
+ */
+
+#include <string.h>
+#include <unistd.h>
+#include "cml1.h"
+
+#define YY_DECL void helplex(char *help)
+#undef YY_NULL
+#define YY_NULL
+%}
+
+%%
+	struct symbol *sym = NULL;
+	helpin = fopen(help, "r");
+	if (!helpin)
+		return;
+	//help_flex_debug = 1;
+	yyrestart(helpin);
+	BEGIN(INITIAL);
+
+^#.*\n	/* skip */
+
+^CONFIG_[[:alnum:]_]+ {
+	char name[256];
+	int ch;
+	while ((ch = input()) != '\n' && ch != EOF)
+		;
+	memcpy(name, yytext, yyleng);
+	name[yyleng] = 0;
+	sym = lookup_symbol(name, SYMBOL_UNKNOWN);
+	new_string();
+	BEGIN(ENTRY);
+}
+
+<ENTRY>{
+	[ \t].*\n+/[^ \t\n] |
+	<<EOF>> {
+		append_string(yytext, yyleng);
+		if (sym) {
+			if (sym->help) {
+				//printf("symbol %s has duplicated help?\n", sym->name);
+				free(text);
+			} else
+				sym->help = text;
+			sym = NULL;
+		} else
+			printf("no symbol?\n");
+		BEGIN(INITIAL);
+	}
+	\n/[^ \t\n] {
+		append_string(yytext, yyleng);
+		if (sym) {
+			if (sym->help) {
+				//printf("symbol %s has duplicated help?\n", sym->name);
+				free(text);
+			} else
+				sym->help = text;
+			sym = NULL;
+		} else
+			printf("no symbol?\n");
+		BEGIN(INITIAL);
+	}
+	[ \t].*\n |
+	.	|
+	\n	{
+		append_string(yytext, yyleng);
+	}
+}
+
+.
+\n
+%%