43 lines
872 B
C++
43 lines
872 B
C++
#pragma once
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#include "buffer/append.h"
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#include "buffer/original.h"
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#include "pch.h"
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#include "shard.h"
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struct Vase {
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OriginalBuffer original;
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AppendBuffer append;
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std::vector<ShardPtr> undo;
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uint8_t top; // of the undo stack.
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uint8_t max; // for redo when no edits have been done after some undo.
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ShardPtr root;
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Vase(char *data, uint32_t length)
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: original(data, length),
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append() {
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root = new Petal(
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length,
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original.newlines.size(),
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&original,
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0
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);
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}
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void insert(uint32_t offset, const char *data, uint32_t len) {
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uint32_t lines = 0;
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uint32_t pos = append.append(data, len, &lines);
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ShardPtr inserted = new Petal(len, lines, &append, pos);
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auto [left, right] = split_shard(root.ptr, offset);
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root = concat_shard(
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concat_shard(left, inserted),
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right
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);
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}
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};
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