From cf7c06297d04bade9cd04c056f9ed510e64dd7bd Mon Sep 17 00:00:00 2001
From: Uros Majstorovic <majstor@majstor.org>
Date: Wed, 5 Aug 2020 03:39:22 +0200
Subject: code -> fw

---
 code/fe310/eos/unicode.c | 180 -----------------------------------------------
 1 file changed, 180 deletions(-)
 delete mode 100644 code/fe310/eos/unicode.c

(limited to 'code/fe310/eos/unicode.c')

diff --git a/code/fe310/eos/unicode.c b/code/fe310/eos/unicode.c
deleted file mode 100644
index 2915791..0000000
--- a/code/fe310/eos/unicode.c
+++ /dev/null
@@ -1,180 +0,0 @@
-#include "unicode.h"
-
-int utf8_enc(utf32_t ch, utf8_t *str) {
-    if (ch <= 0x7f) {
-        str[0] = ch;
-        return 1;
-    } else if (ch <= 0x7ff) {
-        str[0] = 0xc0 | (ch >> 6);
-        str[1] = 0x80 | (ch & 0x3f);
-        return 2;
-    } else if (ch <= 0xffff) {
-        if ((ch >= 0xd800) && (ch <= 0xdfff)) return UTF_ERR;
-        str[0] = 0xe0 | (ch >> 12);
-        str[1] = 0x80 | ((ch >> 6) & 0x3f);
-        str[2] = 0x80 | (ch & 0x3f);
-        return 3;
-    } else if (ch <= 0x10ffff) {
-        str[0] = 0xf0 | (ch >> 18);
-        str[1] = 0x80 | ((ch >> 12) & 0x3f);
-        str[2] = 0x80 | ((ch >> 6) & 0x3f);
-        str[3] = 0x80 | (ch & 0x3f);
-        return 4;
-    } else {
-        return UTF_ERR;
-    }
-}
-
-int utf8_dec(utf8_t *str, utf32_t *ch) {
-    if ((str[0] & 0x80) == 0x00) {
-        *ch = str[0];
-        return 1;
-    } else if ((str[0] & 0xe0) == 0xc0) {
-        if ((str[1] & 0xc0) != 0x80) return UTF_ERR;
-        *ch  = (utf32_t)(str[0] & 0x1f) << 6;
-        *ch |= (utf32_t)(str[1] & 0x3f);
-        if (*ch < 0x80) return UTF_ERR;
-        return 2;
-    } else if ((str[0] & 0xf0) == 0xe0) {
-        if (((str[1] & 0xc0) != 0x80) || ((str[2] & 0xc0) != 0x80)) return UTF_ERR;
-        *ch  = (utf32_t)(str[0] & 0x0f) << 12;
-        *ch |= (utf32_t)(str[1] & 0x3f) << 6;
-        *ch |= (utf32_t)(str[2] & 0x3f);
-        if ((*ch >= 0xd800) && (*ch <= 0xdfff)) return UTF_ERR;
-        if (*ch < 0x800) return UTF_ERR;
-        return 3;
-    } else if ((str[0] & 0xf8) == 0xf0) {
-        if (((str[1] & 0xc0) != 0x80) || ((str[2] & 0xc0) != 0x80) || ((str[3] & 0xc0) != 0x80)) return UTF_ERR;
-        *ch  = (utf32_t)(str[0] & 0x07) << 18;
-        *ch |= (utf32_t)(str[1] & 0x0f) << 12;
-        *ch |= (utf32_t)(str[2] & 0x3f) << 6;
-        *ch |= (utf32_t)(str[3] & 0x3f);
-        if (*ch < 0x010000) return UTF_ERR;
-        if (*ch > 0x10ffff) return UTF_ERR;
-        return 4;
-    } else {
-        return UTF_ERR;
-    }
-}
-
-int utf8_seek(utf8_t *str, int off, utf32_t *ch) {
-    int i;
-    int len = 0;
-
-    if (off < 0) {
-        off = -off;
-        for (i=0; i<off; i++) {
-            len--;
-            while ((str[len] & 0xc0) == 0x80) len--;
-        }
-    } else {
-        for (i=0; i<off; i++) {
-            if ((str[len] & 0x80) == 0x00) {
-                len += 1;
-            } else if ((str[0] & 0xe0) == 0xc0) {
-                len += 2;
-            } else if ((str[0] & 0xf0) == 0xe0) {
-                len += 3;
-            } else if ((str[0] & 0xf8) == 0xf0) {
-                len += 4;
-            }
-        }
-    }
-    utf8_dec(str + len, ch);
-    return len;
-}
-
-int utf8_verify(utf8_t *str, int str_size, int *str_len) {
-    utf32_t ch;
-    uint8_t ch_l;
-    int len = 0;
-
-    while (len < str_size) {
-        if (str_size - len < 4) {
-            if (((str[len] & 0xf8) == 0xf0) ||
-               (((str[len] & 0xf0) == 0xe0) && (str_size - len < 3)) ||
-               (((str[len] & 0xe0) == 0xc0) && (str_size - len < 2))) {
-                   break;
-               }
-        }
-        ch_l = utf8_dec(str + len, &ch);
-        if (ch_l > 0) {
-            if (ch == 0) {
-                *str_len = len;
-                return UTF_OK;
-            }
-            len += ch_l;
-        } else {
-            break;
-        }
-    }
-    *str_len = len;
-    return UTF_ERR;
-}
-
-int utf16_enc(utf32_t ch, uint8_t *str) {
-    if (ch <= 0xffff) {
-        if ((ch >= 0xd800) && (ch <= 0xdfff)) return UTF_ERR;
-        str[0] = ch >> 8;
-        str[1] = ch & 0xff;
-        return 2;
-    } else if (ch <= 0x10ffff) {
-        uint16_t hi;
-        uint16_t lo;
-
-        ch -= 0x10000;
-        hi = (ch >> 10) + 0xd800;
-        lo = (ch & 0x3ff) + 0xdc00;
-        str[0] = hi >> 8;
-        str[1] = hi & 0xff;
-        str[2] = lo >> 8;
-        str[3] = lo & 0xff;
-        return 4;
-    } else {
-        return UTF_ERR;
-    }
-}
-
-int utf16_dec(uint8_t *str, utf32_t *ch) {
-    *ch = (str[0] << 8) | str[1];
-    if ((*ch >= 0xd800) && (*ch <= 0xdfff)) {
-        uint16_t hi = *ch;
-        uint16_t lo;
-
-        if (hi > 0xdbff) return UTF_ERR;
-        lo = (str[2] << 8) | str[3];
-        if ((lo < 0xdc00) || (lo > 0xdfff)) return UTF_ERR;
-        *ch = (((hi - 0xd800) << 10) | (lo - 0xdc00)) + 0x10000;
-        return 4;
-    } else {
-        return 2;
-    }
-}
-
-int utf16_seek(uint8_t *str, int off, utf32_t *ch) {
-    int i;
-    int len = 0;
-    uint16_t cu;
-
-    if (off < 0) {
-        off = -off;
-        for (i=0; i<off; i++) {
-            len -= 2;
-            cu = (str[len] << 8) | str[len + 1];
-            if ((cu >= 0xdc00) && (cu <= 0xdfff)) {
-                len -= 2;
-            }
-        }
-    } else {
-        for (i=0; i<off; i++) {
-            cu = (str[len] << 8) | str[len + 1];
-            if ((cu >= 0xd800) && (cu <= 0xdbff)) {
-                len += 4;
-            } else {
-                len += 2;
-            }
-        }
-    }
-    utf16_dec(str + len, ch);
-    return len;
-}
-- 
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