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terminal: wait to concat for continuous data

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This commit is contained in:
Maxim Prokhorov
2022-09-08 01:21:42 +03:00
parent 68c4956948
commit 37028a4fba
1 changed files with 30 additions and 5 deletions
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35
code/espurna/terminal_parsing.cpp
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@@ -224,19 +224,44 @@ private:
bool& _handle;
};
// intermediate storage for ARGV, text value and escaped characters
// (stores the LHS of \x##, because we don't use look-ahead)
// intermediate storage for
// - ARGV resulting list
// - text buffer or intermediate span range
// - escaped character (since we don't look ahead when iterating)
struct Values {
Argv argv;
String chunk;
const char* span_begin { nullptr };
const char* span_end { nullptr };
char byte_lhs { 0 };
};
static void append_span(Values& values, const char* ptr) {
if (!values.span_begin) {
values.span_begin = ptr;
}
values.span_end = !values.span_end
? std::next(values.span_begin)
: std::next(ptr);
}
static void push_span(Values& values) {
if (values.span_begin && values.span_end) {
StringView span(values.span_begin, values.span_end);
values.chunk.concat(span.c_str(), span.length());
values.span_begin = nullptr;
values.span_end = nullptr;
}
}
static void append_chunk(Values& values, char c) {
push_span(values);
values.chunk.concat(&c, 1);
}
static void push_chunk(Values& values) {
push_span(values);
values.argv.push_back(values.chunk);
values.chunk = "";
}
@@ -301,7 +326,7 @@ text:
break;
default:
if (is_printable(*it)) {
append_chunk(values, *it);
append_span(values, it);
} else {
result = Error::UnescapedText;
goto out;
@@ -390,7 +415,7 @@ text:
break;
default:
if (is_printable(*it)) {
append_chunk(values, *it);
append_span(values, it);
} else {
result = Error::UnescapedText;
goto out;
@@ -445,7 +470,7 @@ text:
break;
default:
if (is_printable(*it)) {
append_chunk(values, *it);
append_span(values, it);
} else {
result = Error::UnescapedText;
goto out;