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//
// Fluid C++ Code Writer header for the Fast Light Tool Kit (FLTK).
//
// Copyright 1998-2025 by Bill Spitzak and others.
//
// This library is free software. Distribution and use rights are outlined in
// the file "COPYING" which should have been included with this file. If this
// file is missing or damaged, see the license at:
//
// https://www.fltk.org/COPYING.php
//
// Please see the following page on how to report bugs and issues:
//
// https://www.fltk.org/bugs.php
//
#ifndef FLUID_IO_CODE_WRITER_H
#define FLUID_IO_CODE_WRITER_H
#include "proj/mergeback.h"
#include <FL/fl_attr.h>
#include <stdarg.h>
#include <stdio.h>
#include <string>
#include <set>
#include <map>
class Node;
struct Fd_Identifier_Tree;
struct Fd_Text_Tree;
struct Fd_Pointer_Tree;
int is_id(char c);
namespace fld {
class Project;
namespace io {
class Code_Writer
{
private:
/// Link Code_Writer class to the project.
Project &proj_;
/// file pointer for the C++ code file
FILE *code_file = nullptr;
/// file pointer for the C++ header file
FILE *header_file = nullptr;
/// tree of unique but human-readable identifiers
std::map<std::string, void*> unique_id_list { };
/// searchable text tree for text that is only written once to the header file
std::set<std::string> text_in_header { };
/// searchable text tree for text that is only written once to the code file
std::set<std::string> text_in_code { };
/// searchable tree for pointers that are only written once to the code file
std::set<void*> ptr_in_code { };
/// crc32 for blocks of text written to the code file
unsigned long block_crc_ = 0;
/// if set, we are at the start of a line and can ignore leading spaces in crc
bool block_line_start_ = true;
/// expanding buffer for vsnprintf
char *block_buffer_ = nullptr;
/// size of expanding buffer for vsnprintf
int block_buffer_size_ = 0;
void crc_add(const void *data, int n=-1);
int crc_printf(const char *format, ...);
int crc_vprintf(const char *format, va_list args);
int crc_puts(const char *text);
int crc_putc(int c);
public:
/// current level of source code indentation
int indentation = 0;
/// set if we write abbreviated file for the source code previewer
/// (disables binary data blocks, for example)
bool write_codeview = false;
/// silly thing to prevent declaring unused variables:
/// When this symbol is on, all attempts to write code don't write
/// anything, but set a variable if it looks like the variable "o" is used:
int varused_test = 0;
/// set to 1 if varused_test found that a variable is actually used
int varused = 0;
public:
Code_Writer(Project &proj);
~Code_Writer();
const char* unique_id(void* o, const char*, const char*, const char*);
/// Increment source code indentation level.
void indent_more() { indentation++; }
/// Decrement source code indentation level.
void indent_less() { indentation--; }
const char *indent();
const char *indent(int set);
const char *indent_plus(int offset);
int write_h_once(const char *, ...) __fl_attr((__format__ (__printf__, 2, 3)));
int write_c_once(const char *, ...) __fl_attr((__format__ (__printf__, 2, 3)));
bool c_contains(void* ptr);
void write_cstring(const char *,int length);
void write_cstring(const char *);
void write_cdata(const char *,int length);
void vwrite_c(const char* format, va_list args);
void write_c(const char*, ...) __fl_attr((__format__ (__printf__, 2, 3)));
void write_cc(const char *, int, const char*, const char*);
void write_h(const char*, ...) __fl_attr((__format__ (__printf__, 2, 3)));
void write_hc(const char *, int, const char*, const char*);
void write_c_indented(const char *textlines, int inIndent, char inTrailwWith);
Node* write_static(Node* p);
Node* write_code(Node* p);
int write_code(const char *cfile, const char *hfile, bool to_codeview=false);
void write_public(int state); // writes pubic:/private: as needed
void tag(proj::Mergeback::Tag prev_type, proj::Mergeback::Tag next_type, unsigned short uid);
static unsigned long block_crc(const void *data, int n=-1, unsigned long in_crc=0, bool *inout_line_start=nullptr);
};
} // namespace io
} // namespace fld
#endif // FLUID_IO_CODE_WRITER_H
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