1 files changed, 111 insertions, 0 deletions
diff --git a/users/davidkristoffersen/util/functions.c b/users/davidkristoffersen/util/functions.c
new file mode 100644
index 0000000000..781d8f214d
--- /dev/null
+++ b/users/davidkristoffersen/util/functions.c
@@ -0,0 +1,111 @@
+// Copyright 2022 David Kristoffersen (@davidkristoffersen)
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "functions.h"
+
+#ifndef NO_SPECIAL_SHIFT
+// Code set to swap struct
+typedef struct code_set {
+    uint16_t pre;
+    uint16_t post;
+} code_set_t;
+
+// Shift codes conversion struct
+typedef struct shift_code {
+    int lang;
+    int size;
+    code_set_t* codes;
+} shift_code_t;
+
+#ifdef LAYER_NO
+code_set_t NO_SHIFT_CODES [] = {
+   {NO_QUOT, NO_DQUO},
+   {NO_BSLS, NO_PIPE},
+};
+#endif
+
+code_set_t EN_SHIFT_CODES [] = {
+    {KC_COMM, KC_SCLN},
+    {KC_DOT, KC_COLN},
+};
+
+// Array of shift code conversions
+const shift_code_t SHIFT_CODES [] = {
+#ifdef LAYER_NO
+    {.lang = LAYER_NO,
+     .size = ARR_LEN(NO_SHIFT_CODES),
+     .codes = NO_SHIFT_CODES},
+#endif
+    {.lang = LAYER_EN,
+     .size = ARR_LEN(EN_SHIFT_CODES),
+     .codes = EN_SHIFT_CODES},
+};
+const int SHIFT_CODES_SIZE = ARR_LEN(SHIFT_CODES);
+#endif
+
+#ifdef LAYER_NO
+// Array of English to Norwegian code translations
+const code_set_t EN2NO_CODES [] = {
+    {KC_QUOT, NO_QUOT},
+    {KC_MINS, NO_MINS},
+    {KC_BSLS, NO_BSLS},
+    {KC_LBRC, NO_LBRC},
+    {KC_LCBR, NO_LCBR},
+    {KC_LPRN, NO_LPRN},
+    {KC_LT,   NO_LESS},
+    {KC_GT,   NO_GRTR},
+    {KC_RPRN, NO_RPRN},
+    {KC_RCBR, NO_RCBR},
+    {KC_RBRC, NO_RBRC},
+    {KC_AMPR, NO_AMPR},
+    {KC_EQL,  NO_EQL},
+    {KC_PLUS, NO_PLUS},
+    {KC_ASTR, NO_ASTR},
+    {KC_SLSH, NO_SLSH},
+    {KC_TILD, NO_TILD},
+    {KC_AE,   NO_AE},
+    {KC_OE,   NO_OE},
+    {KC_AA,   NO_AA},
+    {KC_QUES, NO_QUES},
+    {KC_AT,   NO_AT},
+    {KC_CIRC, NO_CIRC},
+    {KC_DLR,  NO_DLR},
+    {KC_GRV,  NO_GRV}
+};
+const int EN2NO_CODES_SIZE = ARR_LEN(EN2NO_CODES);
+#endif
+
+// Check if layer is an active default layer
+bool is_default_on(int layer) {
+    return layer == LAYER_DEFAULT
+        ? true
+        : layer_state_cmp(default_layer_state, layer);
+}
+
+#ifndef NO_SPECIAL_SHIFT
+// Get special shifted code
+uint16_t get_special_shifted_code(uint16_t keycode) {
+    for (int i = 0; i < SHIFT_CODES_SIZE; i++) {
+        if (IS_DEFAULT_OFF(SHIFT_CODES[i].lang)) continue;
+        for (int j = 0; j < SHIFT_CODES[i].size; j++) {
+            if (keycode == SHIFT_CODES[i].codes[j].pre)
+                return SHIFT_CODES[i].codes[j].post;
+        }
+    }
+    return keycode;
+}
+#endif
+
+#ifdef LAYER_NO
+// Get language specific code
+uint16_t get_norwegian_code(uint16_t keycode) {
+    if (IS_DEFAULT_ON(LAYER_NO)) {
+        for (int i = 0; i < EN2NO_CODES_SIZE; i++) {
+            if (keycode == EN2NO_CODES[i].pre) {
+                return EN2NO_CODES[i].post;
+            }
+        }
+    }
+    return keycode;
+}
+#endif