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Code Releases Wiki Activity

Fix String::word_wrap() for long words

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- Changes `TextServer.string_get_word_breaks()`
  - Returns pairs of boundary start and end offsets
  - Accepts `chars_per_line` to return line breaks
- Removes `String::word_wrap()`

Co-authored-by: bruvzg <7645683+bruvzg@users.noreply.github.com>
This commit is contained in:
Haoyu Qiu
2022-08-18 16:20:20 +08:00
parent f18f2740da
commit 207e52c161
16 changed files with 203 additions and 104 deletions
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71
modules/text_server_fb/text_server_fb.cpp
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@@ -4099,26 +4099,69 @@ String TextServerFallback::_string_to_lower(const String &p_string, const String
return lower;
}
PackedInt32Array TextServerFallback::_string_get_word_breaks(const String &p_string, const String &p_language) const {
PackedInt32Array TextServerFallback::_string_get_word_breaks(const String &p_string, const String &p_language, int p_chars_per_line) const {
PackedInt32Array ret;
int line_start = 0;
int line_end = 0; // End of last word on current line.
int word_start = 0; // -1 if no word encountered. Leading spaces are part of a word.
int word_length = 0;
for (int i = 0; i < p_string.length(); i++) {
char32_t c = p_string[i];
if (c == 0xfffc) {
continue;
}
if (is_punct(c) && c != 0x005F) {
ret.push_back(i);
continue;
}
if (is_underscore(c)) {
ret.push_back(i);
continue;
}
if (is_whitespace(c) || is_linebreak(c)) {
const char32_t c = p_string[i];
if (is_linebreak(c)) {
// Force newline.
ret.push_back(line_start);
ret.push_back(i);
line_start = i + 1;
line_end = line_start;
word_start = line_start;
word_length = 0;
} else if (c == 0xfffc) {
continue;
} else if ((is_punct(c) && c != 0x005F) || is_underscore(c) || c == '\t' || is_whitespace(c)) {
// A whitespace ends current word.
if (word_length > 0) {
line_end = i - 1;
word_start = -1;
word_length = 0;
}
} else {
if (word_start == -1) {
word_start = i;
if (p_chars_per_line <= 0) {
ret.push_back(line_start);
ret.push_back(line_end + 1);
line_start = word_start;
line_end = line_start;
}
}
word_length += 1;
if (p_chars_per_line > 0) {
if (word_length > p_chars_per_line) {
// Word too long: wrap before current character.
ret.push_back(line_start);
ret.push_back(i);
line_start = i;
line_end = i;
word_start = i;
word_length = 1;
} else if (i - line_start + 1 > p_chars_per_line) {
// Line too long: wrap after the last word.
ret.push_back(line_start);
ret.push_back(line_end + 1);
line_start = word_start;
line_end = line_start;
}
}
}
}
if (line_start < p_string.length()) {
ret.push_back(line_start);
ret.push_back(p_string.length());
}
return ret;
}