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https://gitee.com/zlgopen/awtk.git
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83 lines
1.8 KiB
C++
83 lines
1.8 KiB
C++
/**
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* File: preprocess_text.c
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* Author: AWTK Develop Team
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* Brief: preprocess_text
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*
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* Copyright (c) 2018 - 2021 Guangzhou ZHIYUAN Electronics Co.,Ltd.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* License file for more details.
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*
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*/
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/**
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* History:
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* ================================================================
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* 2021-12-21 Li XianJing <xianjimli@hotmail.com> created
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*
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*/
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#include "tkc/str.h"
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#include "tkc/utf8.h"
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#include "tkc/utils.h"
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const char* font_gen_expand_one(const char* in, str_t* out) {
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const char* p = in;
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if (p[0] == '\0' || p[1] == '\0' || p[2] == '\0' || p[3] == '\0') {
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return p += strlen(p);
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}
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if (p[1] == '-' && p[3] == ']' && p[4] == ']') {
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/*[[a-z]]*/
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char c = p[0];
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char end = p[2];
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while (c <= end) {
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str_append_char(out, c);
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c++;
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}
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p += 5;
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} else {
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/* [[1000-2000]] */
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char buff[32];
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int c = 0;
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int end = 0;
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int n = 0;
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if (strncmp(p, "0x", 2) == 0) {
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n = tk_sscanf(p, "0x%x-0x%x]]", &c, &end);
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} else if (strncmp(p, "0X", 2) == 0) {
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n = tk_sscanf(p, "0X%x-0X%x]]", &c, &end);
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} else {
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n = tk_sscanf(p, "%d-%d]]", &c, &end);
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}
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return_value_if_fail(n == 2, in);
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p = strstr(p, "]]");
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return_value_if_fail(p != NULL, in);
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p += 2;
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while (c <= end) {
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tk_utf8_from_utf16_ex((const wchar_t *)&c, 1, buff, sizeof(buff));
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str_append(out, buff);
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c++;
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}
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}
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return p;
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}
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const char* font_gen_expand_text(const char* in, str_t* out) {
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const char* p = in;
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while (*p) {
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if (*p == '[' && p[1] == '[') {
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p = font_gen_expand_one(p + 2, out);
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} else {
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str_append_char(out, *p);
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p++;
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}
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}
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return out->str;
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}
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