forked from enlightenment/efl
198 lines
4.4 KiB
C
198 lines
4.4 KiB
C
#ifdef HAVE_CONFIG_H
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# include "elementary_config.h"
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#endif
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#include <Elementary.h>
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#include "elm_priv.h"
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static char *
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_str_ncpy(char *dest, const char *src, size_t count)
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{
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if ((!dest) || (!src)) return NULL;
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return strncpy(dest, src, count);
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}
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static char *
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_str_append(char *str, const char *txt, int *len, int *alloc)
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{
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int txt_len = strlen(txt);
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if (txt_len <= 0) return str;
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if ((*len + txt_len) >= *alloc)
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{
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char *str2;
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int alloc2;
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alloc2 = *alloc + txt_len + 128;
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str2 = realloc(str, alloc2);
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if (!str2) return str;
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*alloc = alloc2;
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str = str2;
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}
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strcpy(str + *len, txt);
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*len += txt_len;
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return str;
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}
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char *
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_elm_util_mkup_to_text(const char *mkup)
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{
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char *str = NULL;
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int str_len = 0, str_alloc = 0;
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char *s, *p;
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char *tag_start, *tag_end, *esc_start, *esc_end, *ts;
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if (!mkup) return NULL;
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tag_start = tag_end = esc_start = esc_end = NULL;
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p = (char *)mkup;
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s = p;
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for (;;)
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{
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if ((!*p) ||
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(tag_end) || (esc_end) ||
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(tag_start) || (esc_start))
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{
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if (tag_end)
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{
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char *ttag;
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ttag = malloc(tag_end - tag_start);
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if (ttag)
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{
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_str_ncpy(ttag, tag_start + 1, tag_end - tag_start - 1);
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ttag[tag_end - tag_start - 1] = 0;
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if (!strcmp(ttag, "br"))
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str = _str_append(str, "\n", &str_len, &str_alloc);
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else if (!strcmp(ttag, "\n"))
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str = _str_append(str, "\n", &str_len, &str_alloc);
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else if (!strcmp(ttag, "\\n"))
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str = _str_append(str, "\n", &str_len, &str_alloc);
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else if (!strcmp(ttag, "\t"))
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str = _str_append(str, "\t", &str_len, &str_alloc);
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else if (!strcmp(ttag, "\\t"))
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str = _str_append(str, "\t", &str_len, &str_alloc);
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else if (!strcmp(ttag, "ps")) /* Unicode paragraph separator */
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str = _str_append(str, "\xE2\x80\xA9", &str_len, &str_alloc);
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free(ttag);
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}
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tag_start = tag_end = NULL;
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}
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else if (esc_end)
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{
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ts = malloc(esc_end - esc_start + 1);
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if (ts)
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{
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const char *esc;
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_str_ncpy(ts, esc_start, esc_end - esc_start);
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ts[esc_end - esc_start] = 0;
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esc = evas_textblock_escape_string_get(ts);
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if (esc)
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str = _str_append(str, esc, &str_len, &str_alloc);
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free(ts);
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}
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esc_start = esc_end = NULL;
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}
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else if ((!*p) && (s))
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{
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ts = malloc(p - s + 1);
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if (ts)
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{
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_str_ncpy(ts, s, p - s);
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ts[p - s] = 0;
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str = _str_append(str, ts, &str_len, &str_alloc);
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free(ts);
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}
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break;
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}
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}
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if (*p == '<')
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{
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if ((s) && (!esc_start))
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{
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tag_start = p;
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tag_end = NULL;
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ts = malloc(p - s + 1);
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if (ts)
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{
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_str_ncpy(ts, s, p - s);
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ts[p - s] = 0;
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str = _str_append(str, ts, &str_len, &str_alloc);
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free(ts);
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}
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s = NULL;
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}
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}
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else if (*p == '>')
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{
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if (tag_start)
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{
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tag_end = p;
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s = p + 1;
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}
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}
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else if (*p == '&')
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{
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if ((s) && (!tag_start))
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{
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esc_start = p;
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esc_end = NULL;
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ts = malloc(p - s + 1);
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if (ts)
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{
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_str_ncpy(ts, s, p - s);
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ts[p - s] = 0;
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str = _str_append(str, ts, &str_len, &str_alloc);
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free(ts);
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}
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s = NULL;
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}
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}
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else if (*p == ';')
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{
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if (esc_start)
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{
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esc_end = p;
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s = p + 1;
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}
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}
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p++;
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}
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return str;
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}
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char *
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_elm_util_text_to_mkup(const char *text)
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{
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char *str = NULL;
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int str_len = 0, str_alloc = 0;
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int ch, pos = 0, pos2 = 0;
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if (!text) return NULL;
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for (;;)
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{
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pos = pos2;
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pos2 = evas_string_char_next_get((char *)(text), pos2, &ch);
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if ((ch <= 0) || (pos2 <= 0)) break;
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if (ch == '\n')
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str = _str_append(str, "<br>", &str_len, &str_alloc);
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else if (ch == '\t')
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str = _str_append(str, "<\t>", &str_len, &str_alloc);
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else if (ch == '<')
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str = _str_append(str, "<", &str_len, &str_alloc);
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else if (ch == '>')
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str = _str_append(str, ">", &str_len, &str_alloc);
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else if (ch == '&')
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str = _str_append(str, "&", &str_len, &str_alloc);
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else if (ch == 0x2029) /* PS */
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str = _str_append(str, "<ps>", &str_len, &str_alloc);
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else
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{
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char tstr[16];
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_str_ncpy(tstr, text + pos, pos2 - pos);
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tstr[pos2 - pos] = 0;
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str = _str_append(str, tstr, &str_len, &str_alloc);
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}
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}
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return str;
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}
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