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
+%%