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/*************************************************************************** |
/* SPDX-License-Identifier: GPL-3.0-or-later */ |
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lml.h - description |
/* |
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------------------- |
* lml |
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Copyright : (C) 2004-2025 by Leaflet |
* - LML render |
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Email : leaflet@leafok.com |
* |
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***************************************************************************/ |
* Copyright (C) 2004-2025 Leaflet <leaflet@leafok.com> |
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*/ |
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/*************************************************************************** |
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* * |
#ifdef HAVE_CONFIG_H |
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* This program is free software; you can redistribute it and/or modify * |
#include "config.h" |
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* it under the terms of the GNU General Public License as published by * |
#endif |
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* the Free Software Foundation; either version 3 of the License, or * |
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* (at your option) any later version. * |
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* * |
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***************************************************************************/ |
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#include "common.h" |
#include "common.h" |
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#include "lml.h" |
#include "lml.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_BUF_LEN 256 |
enum _lml_constant_t |
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#define LML_TAG_OUTPUT_BUF_LEN 1024 |
{ |
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LML_TAG_PARAM_BUF_LEN = 256, |
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LML_TAG_OUTPUT_BUF_LEN = 1024, |
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LML_TAG_QUOTE_MAX_LEVEL = 10, |
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}; |
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clock_t lml_total_exec_duration = 0; |
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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, int quote_mode); |
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, int quote_mode); |
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return 0; |
return 0; |
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} |
} |
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#define LML_TAG_QUOTE_MAX_LEVEL 10 |
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static const char *lml_tag_quote_color[] = { |
static const char *lml_tag_quote_color[] = { |
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"\033[33m", // yellow |
"\033[33m", // yellow |
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"\033[32m", // green |
"\033[32m", // green |
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{"bwf", "\033[1;31m****\033[m", "", "****", NULL}, |
{"bwf", "\033[1;31m****\033[m", "", "****", NULL}, |
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}; |
}; |
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#define LML_TAG_COUNT (sizeof(lml_tag_def) / sizeof(LML_TAG_DEF)) |
static const int lml_tag_count = sizeof(lml_tag_def) / sizeof(LML_TAG_DEF); |
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static int lml_tag_name_len[sizeof(lml_tag_def) / sizeof(LML_TAG_DEF)]; |
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static int lml_tag_name_len[LML_TAG_COUNT]; |
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static int lml_ready = 0; |
static int lml_ready = 0; |
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inline static void lml_init(void) |
inline static void lml_init(void) |
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if (!lml_ready) |
if (!lml_ready) |
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{ |
{ |
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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_def[i].tag_name); |
lml_tag_name_len[i] = (int)strlen(lml_tag_def[i].tag_name); |
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} |
} |
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} |
} |
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#define CHECK_AND_APPEND_OUTPUT(out_buf, out_buf_len, out_buf_offset, tag_out, tag_out_len, line_width) \ |
#define CHECK_AND_APPEND_OUTPUT(out_buf, out_buf_len, out_buf_offset, tag_out, tag_out_len, line_width) \ |
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if ((tag_out_len) > 0) \ |
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{ \ |
{ \ |
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if ((out_buf_offset) + (tag_out_len) >= (out_buf_len)) \ |
if ((out_buf_offset) + (tag_out_len) >= (out_buf_len)) \ |
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{ \ |
{ \ |
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log_error("Buffer is not longer enough for output string %d >= %d\n", (out_buf_offset) + (tag_out_len), (out_buf_len)); \ |
log_error("Buffer is not longer enough for output string %d >= %d", (out_buf_offset) + (tag_out_len), (out_buf_len)); \ |
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out_buf[out_buf_offset] = '\0'; \ |
out_buf[out_buf_offset] = '\0'; \ |
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return (out_buf_offset); \ |
return (out_buf_offset); \ |
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} \ |
} \ |
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int lml_render(const char *str_in, char *str_out, int buf_len, int width, int quote_mode) |
int lml_render(const char *str_in, char *str_out, int buf_len, int width, int quote_mode) |
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{ |
{ |
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clock_t clock_begin; |
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clock_t clock_end; |
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char c; |
char c; |
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char tag_param_buf[LML_TAG_PARAM_BUF_LEN]; |
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]; |
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int fb_quote_level = 0; |
int fb_quote_level = 0; |
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int tag_name_found; |
int tag_name_found; |
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int line_width = 0; |
int line_width = 0; |
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char tab_spaces[TAB_SIZE + 1]; |
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int tab_width = 0; |
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clock_begin = clock(); |
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#ifdef _DEBUG |
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size_t str_in_len = strlen(str_in); |
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#endif |
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lml_init(); |
lml_init(); |
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for (i = 0; str_in[i] != '\0'; i++) |
for (i = 0; str_in[i] != '\0'; i++) |
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{ |
{ |
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#ifdef _DEBUG |
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if (i >= str_in_len) |
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{ |
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log_error("Bug: i(%d) >= str_in_len(%d)", i, str_in_len); |
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break; |
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} |
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#endif |
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if (!lml_tag_disabled && new_line) |
if (!lml_tag_disabled && new_line) |
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{ |
{ |
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while (str_in[i] == ':' && str_in[i + 1] == ' ') // FB2000 quote leading str |
while (str_in[i] == ':' && str_in[i + 1] == ' ') // FB2000 quote leading str |
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CHECK_AND_APPEND_OUTPUT(str_out, buf_len, j, tag_output_buf, tag_output_len, line_width); |
CHECK_AND_APPEND_OUTPUT(str_out, buf_len, j, tag_output_buf, tag_output_len, line_width); |
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new_line = 0; |
new_line = 0; |
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i--; // redo at current i |
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continue; |
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} |
} |
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if (lml_tag_disabled && new_line) |
if (lml_tag_disabled && new_line) |
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new_line = 0; |
new_line = 0; |
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} |
} |
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if (str_in[i] == '\033' && str_in[i + 1] == '[') // Escape sequence |
if (!quote_mode && !lml_tag_disabled && str_in[i] == '\033' && str_in[i + 1] == '[') // Escape sequence |
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{ |
{ |
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for (k = i + 2; isdigit(str_in[k]) || str_in[k] == ';' || str_in[k] == '?'; k++) |
for (k = i + 2; isdigit((int)str_in[k]) || str_in[k] == ';' || str_in[k] == '?'; k++) |
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; |
; |
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if (str_in[k] == 'm') // valid -- copy directly |
if (str_in[k] == 'm') // valid -- copy directly |
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{ |
{ |
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CHECK_AND_APPEND_OUTPUT(str_out, buf_len, j, str_in + i, k - i + 1, line_width); |
CHECK_AND_APPEND_OUTPUT(str_out, buf_len, j, str_in + i, k - i + 1, line_width); |
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} |
} |
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else if (isalpha(str_in[k])) |
else if (isalpha((int)str_in[k])) |
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{ |
{ |
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// unsupported ANSI CSI command |
// unsupported ANSI CSI command |
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} |
} |
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if (str_in[i] == '\n') // jump out of tag at end of line |
if (str_in[i] == '\n') // jump out of tag at end of line |
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{ |
{ |
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if (tag_start_pos != -1) // tag is not closed |
if (!lml_tag_disabled && tag_start_pos != -1) // tag is not closed |
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{ |
{ |
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tag_end_pos = i - 1; |
if (line_width + 1 > width) |
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tag_output_len = tag_end_pos - tag_start_pos + 1; |
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if (line_width + tag_output_len > width) |
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{ |
{ |
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CHECK_AND_APPEND_OUTPUT(str_out, buf_len, j, "\n", 1, line_width); |
CHECK_AND_APPEND_OUTPUT(str_out, buf_len, j, "\n", 1, line_width); |
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new_line = 1; |
new_line = 1; |
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line_width = 0; |
line_width = 0; |
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i--; // redo at current $i |
i--; // redo at current i |
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} |
continue; |
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else |
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{ |
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CHECK_AND_APPEND_OUTPUT(str_out, buf_len, j, str_in + tag_start_pos, tag_output_len, line_width); |
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} |
} |
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CHECK_AND_APPEND_OUTPUT(str_out, buf_len, j, "[", 1, line_width); |
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i = tag_start_pos; // restart from tag_start_pos + 1 |
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tag_start_pos = -1; |
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tag_name_pos = -1; |
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continue; |
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} |
} |
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if (fb_quote_level > 0) |
if (!lml_tag_disabled && fb_quote_level > 0) |
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{ |
{ |
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lml_tag_quote_level -= fb_quote_level; |
lml_tag_quote_level -= fb_quote_level; |
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{ |
{ |
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continue; // Skip special characters |
continue; // Skip special characters |
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} |
} |
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else if (str_in[i] == '\t') |
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{ |
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tab_width = TAB_SIZE - (line_width % TAB_SIZE); |
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if (line_width + tab_width > width) |
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{ |
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CHECK_AND_APPEND_OUTPUT(str_out, buf_len, j, "\n", 1, line_width); |
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new_line = 1; |
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line_width = 0; |
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// skip current Tab |
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continue; |
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} |
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for (k = 0; k < tab_width; k++) |
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{ |
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tab_spaces[k] = ' '; |
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} |
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tab_spaces[tab_width] = '\0'; |
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CHECK_AND_APPEND_OUTPUT(str_out, buf_len, j, tab_spaces, tab_width, line_width); |
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continue; |
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} |
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if (!lml_tag_disabled && str_in[i] == '[') |
if (!lml_tag_disabled && str_in[i] == '[') |
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{ |
{ |
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if (tag_start_pos != -1) // tag is not closed |
if (tag_start_pos != -1) // tag is not closed |
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{ |
{ |
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tag_end_pos = i - 1; |
if (line_width + 1 > width) |
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tag_output_len = tag_end_pos - tag_start_pos + 1; |
{ |
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CHECK_AND_APPEND_OUTPUT(str_out, buf_len, j, str_in + tag_start_pos, tag_output_len, line_width); |
CHECK_AND_APPEND_OUTPUT(str_out, buf_len, j, "\n", 1, line_width); |
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new_line = 1; |
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line_width = 0; |
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i--; // redo at current i |
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continue; |
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} |
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CHECK_AND_APPEND_OUTPUT(str_out, buf_len, j, "[", 1, line_width); |
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i = tag_start_pos; // restart from tag_start_pos + 1 |
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tag_start_pos = -1; |
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tag_name_pos = -1; |
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continue; |
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} |
} |
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tag_start_pos = i; |
tag_start_pos = i; |
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tag_name_pos++; |
tag_name_pos++; |
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} |
} |
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for (tag_name_found = 0, k = 0; k < LML_TAG_COUNT; k++) |
for (tag_name_found = 0, k = 0; k < lml_tag_count; k++) |
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{ |
{ |
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if (strncasecmp(lml_tag_def[k].tag_name, str_in + tag_name_pos, (size_t)lml_tag_name_len[k]) == 0) |
if (strncasecmp(lml_tag_def[k].tag_name, str_in + tag_name_pos, (size_t)lml_tag_name_len[k]) == 0) |
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{ |
{ |
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lml_tag_def[k].tag_name, tag_param_buf, tag_output_buf, LML_TAG_OUTPUT_BUF_LEN, 1); |
lml_tag_def[k].tag_name, tag_param_buf, tag_output_buf, LML_TAG_OUTPUT_BUF_LEN, 1); |
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} |
} |
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} |
} |
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if (line_width + tag_output_len > width) |
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{ |
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CHECK_AND_APPEND_OUTPUT(str_out, buf_len, j, "\n", 1, line_width); |
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new_line = 1; |
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line_width = 0; |
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i--; // redo at current i |
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continue; |
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} |
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CHECK_AND_APPEND_OUTPUT(str_out, buf_len, j, tag_output_buf, tag_output_len, line_width); |
CHECK_AND_APPEND_OUTPUT(str_out, buf_len, j, tag_output_buf, tag_output_len, line_width); |
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break; |
break; |
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default: // tag_name not match |
default: // tag_name not match |
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if (!tag_name_found) |
if (!tag_name_found) |
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{ |
{ |
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tag_output_len = tag_end_pos - tag_start_pos + 1; |
if (line_width + 1 > width) |
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if (line_width + tag_output_len > width) |
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{ |
{ |
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CHECK_AND_APPEND_OUTPUT(str_out, buf_len, j, "\n", 1, line_width); |
CHECK_AND_APPEND_OUTPUT(str_out, buf_len, j, "\n", 1, line_width); |
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new_line = 1; |
new_line = 1; |
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line_width = 0; |
line_width = 0; |
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i--; // redo at current $i |
i--; // redo at current i |
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continue; |
continue; |
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} |
} |
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CHECK_AND_APPEND_OUTPUT(str_out, buf_len, j, str_in + tag_start_pos, tag_output_len, line_width); |
CHECK_AND_APPEND_OUTPUT(str_out, buf_len, j, "[", 1, line_width); |
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i = tag_start_pos; // restart from tag_start_pos + 1 |
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tag_start_pos = -1; |
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tag_name_pos = -1; |
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continue; |
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} |
} |
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tag_start_pos = -1; |
tag_start_pos = -1; |
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CHECK_AND_APPEND_OUTPUT(str_out, buf_len, j, "\n", 1, line_width); |
CHECK_AND_APPEND_OUTPUT(str_out, buf_len, j, "\n", 1, line_width); |
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new_line = 1; |
new_line = 1; |
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line_width = 0; |
line_width = 0; |
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i--; // redo at current $i |
i--; // redo at current i |
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continue; |
continue; |
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} |
} |
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} |
} |
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} |
} |
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if (tag_start_pos != -1) // tag is not closed |
if (!lml_tag_disabled && tag_start_pos != -1) // tag is not closed |
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{ |
{ |
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tag_end_pos = i - 1; |
tag_end_pos = i - 1; |
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tag_output_len = tag_end_pos - tag_start_pos + 1; |
tag_output_len = tag_end_pos - tag_start_pos + 1; |
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str_out[j] = '\0'; |
str_out[j] = '\0'; |
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clock_end = clock(); |
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lml_total_exec_duration += (clock_end - clock_begin); |
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return j; |
return j; |
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} |
} |