| 14 |
* * |
* * |
| 15 |
***************************************************************************/ |
***************************************************************************/ |
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#include "common.h" |
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#include "lml.h" |
#include "lml.h" |
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#include "log.h" |
#include "log.h" |
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#include <stdio.h> |
#include <stdio.h> |
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#include <string.h> |
#include <string.h> |
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#include <sys/param.h> |
#include <sys/param.h> |
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#define LML_TAG_PARAM_MAX_LEN 20 |
#define LML_TAG_PARAM_BUF_LEN 256 |
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#define LML_TAG_OUTPUT_BUF_LEN 256 |
#define LML_TAG_OUTPUT_BUF_LEN 1024 |
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|
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#define LML_TAG_COUNT 21 |
typedef int (*lml_tag_filter_cb)(const char *tag_name, const char *tag_param_buf, char *tag_output_buf, size_t tag_output_buf_len); |
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const static char *LML_tag_name[][2] = { |
static int lml_tag_color_filter(const char *tag_name, const char *tag_param_buf, char *tag_output_buf, size_t tag_output_buf_len) |
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{"left", "["}, |
{ |
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{"right", "]"}, |
if (strcasecmp(tag_name, "color") == 0) |
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{"underline", "\033[4m"}, |
{ |
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{"/underline", "\033[24m"}, |
if (strcasecmp(tag_param_buf, "red") == 0) |
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{"u", "\033[4m"}, |
{ |
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{"/u", "\033[24m"}, |
return snprintf(tag_output_buf, tag_output_buf_len, "\033[1;31m"); |
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{"url", ""}, |
} |
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{"/url", "(链接: %s)"}, |
else if (strcasecmp(tag_param_buf, "green") == 0) |
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{"link", ""}, |
{ |
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{"/link", "(链接: %s)"}, |
return snprintf(tag_output_buf, tag_output_buf_len, "\033[1;32m"); |
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{"email", ""}, |
} |
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{"/email", "(Email: %s)"}, |
else if (strcasecmp(tag_param_buf, "yellow") == 0) |
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{"user", ""}, |
{ |
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{"/user", "(用户: %s)"}, |
return snprintf(tag_output_buf, tag_output_buf_len, "\033[1;33m"); |
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{"article", ""}, |
} |
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{"/article", "(文章: %s)"}, |
else if (strcasecmp(tag_param_buf, "blue") == 0) |
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{"hide", ""}, |
{ |
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{"/hide", ""}, |
return snprintf(tag_output_buf, tag_output_buf_len, "\033[1;34m"); |
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{"image", "(图片: %s)"}, |
} |
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{"flash", "(Flash: %s)"}, |
else if (strcasecmp(tag_param_buf, "magenta") == 0) |
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{"bwf", "\033[31m****\033[m"}, |
{ |
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return snprintf(tag_output_buf, tag_output_buf_len, "\033[1;35m"); |
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} |
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else if (strcasecmp(tag_param_buf, "cyan") == 0) |
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{ |
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return snprintf(tag_output_buf, tag_output_buf_len, "\033[1;36m"); |
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} |
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else if (strcasecmp(tag_param_buf, "black") == 0) |
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{ |
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return snprintf(tag_output_buf, tag_output_buf_len, "\033[1;30;47m"); |
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} |
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} |
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return 0; |
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} |
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#define LML_TAG_QUOTE_MAX_LEVEL 10 |
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#define LML_TAG_QUOTE_LEVEL_LOOP 3 |
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| 68 |
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static const char *lml_tag_quote_color[] = { |
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"\033[33m", // yellow |
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"\033[32m", // green |
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"\033[35m", // magenta |
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}; |
}; |
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| 74 |
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static int lml_tag_quote_level = 0; |
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| 76 |
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static int lml_tag_quote_filter(const char *tag_name, const char *tag_param_buf, char *tag_output_buf, size_t tag_output_buf_len) |
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{ |
| 78 |
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if (strcasecmp(tag_name, "quote") == 0) |
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{ |
| 80 |
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if (lml_tag_quote_level <= LML_TAG_QUOTE_MAX_LEVEL) |
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{ |
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lml_tag_quote_level++; |
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} |
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return snprintf(tag_output_buf, tag_output_buf_len, lml_tag_quote_color[lml_tag_quote_level % LML_TAG_QUOTE_LEVEL_LOOP]); |
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} |
| 86 |
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else if (strcasecmp(tag_name, "/quote") == 0) |
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{ |
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if (lml_tag_quote_level > 0) |
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{ |
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lml_tag_quote_level--; |
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} |
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return snprintf(tag_output_buf, tag_output_buf_len, |
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(lml_tag_quote_level > 0 ? lml_tag_quote_color[lml_tag_quote_level % LML_TAG_QUOTE_LEVEL_LOOP] : "\033[m")); |
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} |
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| 96 |
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return 0; |
| 97 |
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} |
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const static char *LML_tag_def[][3] = { |
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{"left", "[", ""}, |
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{"right", "]", NULL}, |
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{"bold", "\033[1m", ""}, // does not work in Fterm |
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{"/bold", "\033[22m", NULL}, |
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{"b", "\033[1m", ""}, |
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{"/b", "\033[22m", NULL}, |
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{"italic", "\033[5m", ""}, // use blink instead |
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{"/italic", "\033[m", NULL}, // \033[25m does not work in Fterm |
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{"i", "\033[5m", ""}, |
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{"/i", "\033[m", NULL}, |
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{"underline", "\033[4m", ""}, |
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{"/underline", "\033[m", NULL}, // \033[24m does not work in Fterm |
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{"u", "\033[4m", ""}, |
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{"/u", "\033[m", NULL}, |
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{"color", NULL, (const char *)lml_tag_color_filter}, |
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{"/color", "\033[m", NULL}, |
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{"quote", NULL, (const char *)lml_tag_quote_filter}, |
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{"/quote", NULL, (const char *)lml_tag_quote_filter}, |
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{"url", "", ""}, |
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{"/url", "(閾炬帴: %s)", NULL}, |
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{"link", "", ""}, |
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{"/link", "(閾炬帴: %s)", NULL}, |
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{"email", "", ""}, |
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{"/email", "(Email: %s)", NULL}, |
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{"user", "", ""}, |
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{"/user", "(鐢ㄦ埛: %s)", NULL}, |
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{"article", "", ""}, |
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{"/article", "(鏂囩珷: %s)", NULL}, |
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{"image", "(鍥剧墖: %s)", ""}, |
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{"flash", "(Flash: %s)", ""}, |
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{"bwf", "\033[1;31m****\033[m", ""}, |
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}; |
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#define LML_TAG_COUNT 31 |
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static int LML_tag_name_len[LML_TAG_COUNT]; |
static int LML_tag_name_len[LML_TAG_COUNT]; |
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static int LML_init = 0; |
static int LML_init = 0; |
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|
| 143 |
{ |
{ |
| 144 |
for (i = 0; i < LML_TAG_COUNT; i++) |
for (i = 0; i < LML_TAG_COUNT; i++) |
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{ |
{ |
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LML_tag_name_len[i] = (int)strlen(LML_tag_name[i][0]); |
LML_tag_name_len[i] = (int)strlen(LML_tag_def[i][0]); |
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} |
} |
| 148 |
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|
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LML_init = 1; |
LML_init = 1; |
| 152 |
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|
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int lml_plain(const char *str_in, char *str_out, int buf_len) |
int lml_plain(const char *str_in, char *str_out, int buf_len) |
| 154 |
{ |
{ |
| 155 |
char tag_param_buf[LML_TAG_PARAM_MAX_LEN + 1]; |
char c; |
| 156 |
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char tag_param_buf[LML_TAG_PARAM_BUF_LEN]; |
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char tag_output_buf[LML_TAG_OUTPUT_BUF_LEN]; |
char tag_output_buf[LML_TAG_OUTPUT_BUF_LEN]; |
| 158 |
int i; |
int i; |
| 159 |
int j = 0; |
int j = 0; |
| 160 |
int k; |
int k; |
| 161 |
int tag_start_pos = -1; |
int tag_start_pos = -1; |
| 162 |
int tag_end_pos = -1; |
int tag_end_pos = -1; |
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int tag_param_pos; |
int tag_param_pos = -1; |
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int tag_output_len; |
int tag_output_len; |
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int new_line = 1; |
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int fb_quote_level = 0; |
| 167 |
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|
| 168 |
lml_init(); |
lml_init(); |
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| 170 |
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lml_tag_quote_level = 0; |
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|
| 172 |
for (i = 0; str_in[i] != '\0'; i++) |
for (i = 0; str_in[i] != '\0'; i++) |
| 173 |
{ |
{ |
| 174 |
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if (new_line) |
| 175 |
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{ |
| 176 |
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if (fb_quote_level > 0) |
| 177 |
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{ |
| 178 |
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lml_tag_quote_level -= fb_quote_level; |
| 179 |
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|
| 180 |
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tag_output_len = snprintf(tag_output_buf, LML_TAG_OUTPUT_BUF_LEN, |
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(lml_tag_quote_level > 0 ? lml_tag_quote_color[lml_tag_quote_level % LML_TAG_QUOTE_LEVEL_LOOP] : "\033[m")); |
| 182 |
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if (j + tag_output_len >= buf_len) |
| 183 |
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{ |
| 184 |
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log_error("Buffer is not longer enough for output string %d >= %d\n", j + tag_output_len, buf_len); |
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str_out[j] = '\0'; |
| 186 |
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return j; |
| 187 |
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} |
| 188 |
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memcpy(str_out + j, tag_output_buf, (size_t)tag_output_len); |
| 189 |
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j += tag_output_len; |
| 190 |
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|
| 191 |
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fb_quote_level = 0; |
| 192 |
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} |
| 193 |
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|
| 194 |
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while (str_in[i + fb_quote_level * 2] == ':' && str_in[i + fb_quote_level * 2 + 1] == ' ') // FB2000 quote leading str |
| 195 |
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{ |
| 196 |
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fb_quote_level++; |
| 197 |
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} |
| 198 |
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|
| 199 |
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if (fb_quote_level > 0) |
| 200 |
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{ |
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lml_tag_quote_level += fb_quote_level; |
| 202 |
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|
| 203 |
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tag_output_len = snprintf(tag_output_buf, LML_TAG_OUTPUT_BUF_LEN, |
| 204 |
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lml_tag_quote_color[(lml_tag_quote_level) % LML_TAG_QUOTE_LEVEL_LOOP]); |
| 205 |
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if (j + tag_output_len >= buf_len) |
| 206 |
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{ |
| 207 |
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log_error("Buffer is not longer enough for output string %d >= %d\n", j + tag_output_len, buf_len); |
| 208 |
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str_out[j] = '\0'; |
| 209 |
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return j; |
| 210 |
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} |
| 211 |
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memcpy(str_out + j, tag_output_buf, (size_t)tag_output_len); |
| 212 |
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j += tag_output_len; |
| 213 |
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} |
| 214 |
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|
| 215 |
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new_line = 0; |
| 216 |
|
} |
| 217 |
|
|
| 218 |
|
if (str_in[i] == '\033' && str_in[i + 1] == '[') // Escape sequence -- copy directly |
| 219 |
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{ |
| 220 |
|
for (k = i + 2; str_in[k] != '\0' && str_in[k] != 'm'; k++) |
| 221 |
|
; |
| 222 |
|
|
| 223 |
|
if (str_in[k] == 'm') // Valid |
| 224 |
|
{ |
| 225 |
|
if (j + (k - i + 1) >= buf_len) |
| 226 |
|
{ |
| 227 |
|
log_error("Buffer is not longer enough for output string %d >= %d\n", j + (k - i + 1), buf_len); |
| 228 |
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str_out[j] = '\0'; |
| 229 |
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return j; |
| 230 |
|
} |
| 231 |
|
memcpy(str_out + j, str_in + i, (size_t)(k - i + 1)); |
| 232 |
|
j += (k - i + 1); |
| 233 |
|
i = k; |
| 234 |
|
continue; |
| 235 |
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} |
| 236 |
|
else // reach end of string |
| 237 |
|
{ |
| 238 |
|
break; |
| 239 |
|
} |
| 240 |
|
} |
| 241 |
|
|
| 242 |
|
if (str_in[i] == '\n') |
| 243 |
|
{ |
| 244 |
|
tag_start_pos = -1; // jump out of tag at end of line |
| 245 |
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new_line = 1; |
| 246 |
|
} |
| 247 |
|
else if (str_in[i] == '\r') |
| 248 |
|
{ |
| 249 |
|
continue; // ignore '\r' |
| 250 |
|
} |
| 251 |
|
|
| 252 |
if (str_in[i] == '[') |
if (str_in[i] == '[') |
| 253 |
{ |
{ |
| 254 |
tag_start_pos = i + 1; |
tag_start_pos = i + 1; |
| 267 |
|
|
| 268 |
for (k = 0; k < LML_TAG_COUNT; k++) |
for (k = 0; k < LML_TAG_COUNT; k++) |
| 269 |
{ |
{ |
| 270 |
if (strncasecmp(LML_tag_name[k][0], str_in + tag_start_pos, (size_t)LML_tag_name_len[k]) == 0) |
if (strncasecmp(LML_tag_def[k][0], str_in + tag_start_pos, (size_t)LML_tag_name_len[k]) == 0) |
| 271 |
{ |
{ |
| 272 |
|
tag_param_pos = -1; |
| 273 |
switch (str_in[tag_start_pos + LML_tag_name_len[k]]) |
switch (str_in[tag_start_pos + LML_tag_name_len[k]]) |
| 274 |
{ |
{ |
| 275 |
case ' ': |
case ' ': |
| 278 |
{ |
{ |
| 279 |
tag_param_pos++; |
tag_param_pos++; |
| 280 |
} |
} |
| 281 |
if (tag_end_pos - tag_param_pos > 0) |
strncpy(tag_param_buf, str_in + tag_param_pos, (size_t)MIN(tag_end_pos - tag_param_pos, LML_TAG_PARAM_BUF_LEN)); |
| 282 |
|
tag_param_buf[MIN(tag_end_pos - tag_param_pos, LML_TAG_PARAM_BUF_LEN)] = '\0'; |
| 283 |
|
case ']': |
| 284 |
|
if (tag_param_pos == -1 && LML_tag_def[k][1] != NULL && LML_tag_def[k][2] != NULL) // Apply default param if not defined |
| 285 |
{ |
{ |
| 286 |
strncpy(tag_param_buf, str_in + tag_param_pos, (size_t)MIN(tag_end_pos - tag_param_pos, LML_TAG_PARAM_MAX_LEN)); |
strncpy(tag_param_buf, LML_tag_def[k][2], LML_TAG_PARAM_BUF_LEN - 1); |
| 287 |
tag_param_buf[MIN(tag_end_pos - tag_param_pos, LML_TAG_PARAM_MAX_LEN)] = '\0'; |
tag_param_buf[LML_TAG_PARAM_BUF_LEN - 1] = '\0'; |
| 288 |
} |
} |
| 289 |
case ']': |
if (LML_tag_def[k][1] != NULL) |
| 290 |
tag_output_len = snprintf(tag_output_buf, LML_TAG_OUTPUT_BUF_LEN, LML_tag_name[k][1], tag_param_buf); |
{ |
| 291 |
if (j + tag_output_len >= buf_len - 1) |
tag_output_len = snprintf(tag_output_buf, LML_TAG_OUTPUT_BUF_LEN, LML_tag_def[k][1], tag_param_buf); |
| 292 |
|
} |
| 293 |
|
else |
| 294 |
|
{ |
| 295 |
|
tag_output_len = ((lml_tag_filter_cb)LML_tag_def[k][2])( |
| 296 |
|
LML_tag_def[k][0], tag_param_buf, tag_output_buf, LML_TAG_OUTPUT_BUF_LEN); |
| 297 |
|
} |
| 298 |
|
if (j + tag_output_len >= buf_len) |
| 299 |
{ |
{ |
| 300 |
log_error("Buffer is not longer enough for output string %d >= %d\n", j + tag_output_len, buf_len - 1); |
log_error("Buffer is not longer enough for output string %d >= %d\n", j + tag_output_len, buf_len); |
| 301 |
str_out[j] = '\0'; |
str_out[j] = '\0'; |
| 302 |
return j; |
return j; |
| 303 |
} |
} |
| 316 |
} |
} |
| 317 |
else if (tag_start_pos == -1) // not in LML tag |
else if (tag_start_pos == -1) // not in LML tag |
| 318 |
{ |
{ |
| 319 |
if (str_in[i] < 0 || str_in[i] > 127) // GBK chinese character |
if (str_in[i] & 0b10000000) // head of multi-byte character |
| 320 |
{ |
{ |
| 321 |
if (j + 2 >= buf_len - 1) |
if (j + 4 >= buf_len) // Assuming UTF-8 CJK characters use 4 bytes, though most of them actually use 3 bytes |
| 322 |
{ |
{ |
| 323 |
log_error("Buffer is not longer enough for output string %ld >= %d\n", j + 2, buf_len - 1); |
log_error("Buffer is not longer enough for output string %ld >= %d\n", j + 4, buf_len); |
| 324 |
str_out[j] = '\0'; |
str_out[j] = '\0'; |
| 325 |
return j; |
return j; |
| 326 |
} |
} |
| 327 |
str_out[j++] = str_in[i++]; |
|
| 328 |
if (str_in[i] == '\0') |
c = (str_in[i] & 0b01110000) << 1; |
| 329 |
|
while (c & 0b10000000) |
| 330 |
{ |
{ |
| 331 |
str_out[j] = '\0'; |
str_out[j++] = str_in[i++]; |
| 332 |
return j; |
if (str_in[i] == '\0') |
| 333 |
|
{ |
| 334 |
|
str_out[j] = '\0'; |
| 335 |
|
return j; |
| 336 |
|
} |
| 337 |
|
c = (c & 0b01111111) << 1; |
| 338 |
} |
} |
| 339 |
} |
} |
| 340 |
|
|
| 341 |
if (j + 1 >= buf_len - 1) |
if (j + 1 >= buf_len) |
| 342 |
{ |
{ |
| 343 |
log_error("Buffer is not longer enough for output string %ld >= %d\n", j + 1, buf_len - 1); |
log_error("Buffer is not longer enough for output string %ld >= %d\n", j + 1, buf_len); |
| 344 |
str_out[j] = '\0'; |
str_out[j] = '\0'; |
| 345 |
return j; |
return j; |
| 346 |
} |
} |
| 352 |
} |
} |
| 353 |
} |
} |
| 354 |
|
|
| 355 |
|
if (lml_tag_quote_level > 0) |
| 356 |
|
{ |
| 357 |
|
tag_output_len = snprintf(tag_output_buf, LML_TAG_OUTPUT_BUF_LEN, "\033[m"); |
| 358 |
|
if (j + tag_output_len >= buf_len) |
| 359 |
|
{ |
| 360 |
|
log_error("Buffer is not longer enough for output string %d >= %d\n", j + tag_output_len, buf_len); |
| 361 |
|
str_out[j] = '\0'; |
| 362 |
|
return j; |
| 363 |
|
} |
| 364 |
|
memcpy(str_out + j, tag_output_buf, (size_t)tag_output_len); |
| 365 |
|
j += tag_output_len; |
| 366 |
|
} |
| 367 |
|
|
| 368 |
str_out[j] = '\0'; |
str_out[j] = '\0'; |
| 369 |
|
|
| 370 |
return j; |
return j; |
| 371 |
} |
} |