Move tools out of src (src should be

only code that goes into final binary).

tools/symcharsgen.c

@@ -0,0 +1,63 @@
+/*
+* Copyright (c) 2018 Calvin Rose
+*
+* Permission is hereby granted, free of charge, to any person obtaining a copy
+* of this software and associated documentation files (the "Software"), to
+* deal in the Software without restriction, including without limitation the
+* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+* sell copies of the Software, and to permit persons to whom the Software is
+* furnished to do so, subject to the following conditions:
+*
+* The above copyright notice and this permission notice shall be included in
+* all copies or substantial portions of the Software.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+* IN THE SOFTWARE.
+*/
+
+#include <stdio.h>
+#include <stdint.h>
+
+static int is_symbol_char_gen(uint8_t c) {
+    if (c & 0x80) return 1;
+    if (c >= 'a' && c <= 'z') return 1;
+    if (c >= 'A' && c <= 'Z') return 1;
+    if (c >= '0' && c <= '9') return 1;
+    return (c == '!' ||
+        c == '$' ||
+        c == '%' ||
+        c == '&' ||
+        c == '*' ||
+        c == '+' ||
+        c == '-' ||
+        c == '.' ||
+        c == '/' ||
+        c == ':' ||
+        c == '<' ||
+        c == '?' ||
+        c == '=' ||
+        c == '>' ||
+        c == '@' ||
+        c == '^' ||
+        c == '_' ||
+        c == '|');
+}
+
+int main() {
+    printf("static const uint32_t symchars[8] = {\n    ");
+    for (int i = 0; i < 256; i += 32) {
+        uint32_t block = 0;
+        for (int j = 0; j < 32; j++) {
+            block |= is_symbol_char_gen(i + j) << j;
+        }
+        printf("0x%08x%s", block, (i == (256 - 32)) ? "" : ", ");
+    }
+    printf("\n};\n");
+    return 0;
+}
+