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Added String::dedent() to remove text indentation

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This functions similarly to Python's textwrap.dedent()

It's also been applied to doc_data.cpp to remove extra whitespace while
parsing the XML.
This commit is contained in:
Zher Huei Lee
2017-10-11 16:27:54 +08:00
parent 29ea79e065
commit 0804dd5336
4 changed files with 54 additions and 4 deletions
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42
core/ustring.cpp
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@ -2757,6 +2757,48 @@ CharType String::ord_at(int p_idx) const {
return operator[](p_idx);
}
String String::dedent() const {
String new_string;
String indent;
bool has_indent = false;
bool has_text = false;
int line_start = 0;
int indent_stop = -1;
for (int i = 0; i < length(); i++) {
CharType c = operator[](i);
if (c == '\n') {
if (has_text)
new_string += substr(indent_stop, i - indent_stop);
new_string += "\n";
has_text = false;
line_start = i + 1;
indent_stop = -1;
} else if (!has_text) {
if (c > 32) {
has_text = true;
if (!has_indent) {
has_indent = true;
indent = substr(line_start, i - line_start);
indent_stop = i;
}
}
if (has_indent && indent_stop < 0) {
int j = i - line_start;
if (j >= indent.length() || c != indent[j])
indent_stop = i;
}
}
}
if (has_text)
new_string += substr(indent_stop, length() - indent_stop);
return new_string;
}
String String::strip_edges(bool left, bool right) const {
int len = length();