Aegisub/aegisub/src/search_replace_engine.h

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// Copyright (c) 2013, Thomas Goyne <plorkyeran@aegisub.org>
//
// Permission to use, copy, modify, and distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
//
// Aegisub Project http://www.aegisub.org/
#include <functional>
#include <boost/regex/icu.hpp>
#include <string>
namespace agi { struct Context; }
class AssDialogue;
struct MatchState {
boost::u32regex *re;
size_t start, end;
MatchState() : re(nullptr), start(0), end(-1) { }
MatchState(size_t s, size_t e, boost::u32regex *re) : re(re), start(s), end(e) { }
operator bool() const { return end != (size_t)-1; }
};
struct SearchReplaceSettings {
enum class Field {
TEXT = 0,
STYLE,
ACTOR,
EFFECT
};
enum class Limit {
ALL = 0,
SELECTED
};
std::string find;
std::string replace_with;
Field field;
Limit limit_to;
bool match_case;
bool use_regex;
bool ignore_comments;
bool skip_tags;
bool exact_match;
};
class SearchReplaceEngine {
agi::Context *context;
bool initialized;
SearchReplaceSettings settings;
bool FindReplace(bool replace);
void Replace(AssDialogue *line, MatchState &ms);
public:
bool FindNext() { return FindReplace(false); }
bool ReplaceNext() { return FindReplace(true); }
bool ReplaceAll();
void Configure(SearchReplaceSettings const& new_settings);
static std::function<MatchState (const AssDialogue*, size_t)> GetMatcher(SearchReplaceSettings const& settings);
SearchReplaceEngine(agi::Context *c);
};