100 lines
3.8 KiB
C
100 lines
3.8 KiB
C
#if !defined(DQN_CPP_FILE_H)
|
|
#define DQN_CPP_FILE_H
|
|
|
|
// NOTE: Dqn_CppFile: Helper functions to generate C++ files
|
|
// =============================================================================
|
|
#include <stdio.h> /// printf, fputc
|
|
#include <stdarg.h> /// va_list...
|
|
#include <assert.h> /// assert
|
|
|
|
struct Dqn_CppFile /// Maintains state for printing C++ style formatted files
|
|
{
|
|
FILE *file; ///< File to print to
|
|
int indent; ///< Current indent level of the printer
|
|
int space_per_indent; ///< Number of spaces per indent
|
|
bool k_and_r_indent; ///< K&R style indenting when opening a block scope, e.g. "{\n" vs "\n{"
|
|
};
|
|
|
|
/// Print the format string indented and terminate the string with a new-line.
|
|
void Dqn_CppFLineV(Dqn_CppFile *cpp, char const *fmt, va_list args);
|
|
void Dqn_CppFLine(Dqn_CppFile *cpp, char const *fmt, ...);
|
|
|
|
/// Print the format string indented
|
|
void Dqn_CppFPrintV(Dqn_CppFile *cpp, char const *fmt, va_list args);
|
|
void Dqn_CppFPrint(Dqn_CppFile *cpp, char const *fmt, ...);
|
|
|
|
/// Print the format string
|
|
#define Dqn_CppFAppend(cpp, fmt, ...) vfprintf(cpp->file, fmt, ##__VAR_ARGS__)
|
|
|
|
/// End the current line, useful after CppFPrint and CppFAppend
|
|
#define Dqn_CppFEndLine(cpp) fputc('\n', (cpp)->file)
|
|
|
|
/// Manually modify the indent level
|
|
#define Dqn_CppFIndent(cpp) (cpp)->indent++;
|
|
#define Dqn_CppFUnindent(cpp) (cpp)->indent--; assert(cpp->indent >= 0)
|
|
|
|
/// Print the format string followed by a "{" and enter a new line whilst
|
|
/// increasing the indent level after the brace.
|
|
void Dqn_CppFBeginBlock(Dqn_CppFile *cpp, char const *fmt, ...);
|
|
void Dqn_CppFEndBlock (Dqn_CppFile *cpp, bool trailing_semicolon, bool new_line_on_next_block);
|
|
|
|
/// End a block, specifically for the following language constructs.
|
|
#define Dqn_CppFEndEnumBlock(cpp) Dqn_CppFEndBlock(cpp, true /*trailing_semicolon*/, true /*new_line_on_next_block*/)
|
|
#define Dqn_CppFEndForBlock(cpp) Dqn_CppFEndBlock(cpp, false /*trailing_semicolon*/, false /*new_line_on_next_block*/)
|
|
#define Dqn_CppFEndIfBlock(cpp) Dqn_CppFEndBlock(cpp, false /*trailing_semicolon*/, false /*new_line_on_next_block*/)
|
|
#define Dqn_CppFEndFuncBlock(cpp) Dqn_CppFEndBlock(cpp, false /*trailing_semicolon*/, true /*new_line_on_next_block*/)
|
|
#define Dqn_CppFEndStructBlock(cpp) Dqn_CppFEndBlock(cpp, true /*trailing_semicolon*/, true /*new_line_on_next_block*/)
|
|
#endif // DQN_CPP_FILE_H
|
|
|
|
#if defined(DQN_CPP_FILE_IMPLEMENTATION)
|
|
// NOTE: Dqn_CppFile Implementation
|
|
// =============================================================================
|
|
void Dqn_CppFLineV(Dqn_CppFile *cpp, char const *fmt, va_list args)
|
|
{
|
|
Dqn_CppFPrintV(cpp, fmt, args);
|
|
Dqn_CppFLineEnd(cpp, nullptr);
|
|
}
|
|
|
|
void Dqn_CppFLine(Dqn_CppFile *cpp, char const *fmt, ...)
|
|
{
|
|
va_list args;
|
|
va_start(args, fmt);
|
|
Dqn_CppFLineV(cpp, fmt, args);
|
|
va_end(args);
|
|
}
|
|
|
|
void Dqn_CppFPrintV(Dqn_CppFile *cpp, char const *fmt, va_list args)
|
|
{
|
|
int space_per_indent = cpp->space_per_indent == 0 ? 4 : cpp->space_per_indent;
|
|
int spaces = fmt ? (cpp->indent * space_per_indent) : 0;
|
|
fprintf(cpp->file, "%*s", spaces, "");
|
|
vfprintf(cpp->file, fmt, args);
|
|
}
|
|
|
|
void Dqn_CppFPrint(Dqn_CppFile *cpp, char const *fmt, ...)
|
|
{
|
|
va_list args;
|
|
va_start(args, fmt);
|
|
Dqn_CppFPrintV(cpp, fmt, args);
|
|
va_end(args);
|
|
}
|
|
|
|
void Dqn_CppFBeginBlock(Dqn_CppFile *cpp, char const *fmt, ...)
|
|
{
|
|
va_list args;
|
|
va_start(args, fmt);
|
|
Dqn_CppFLineV(cpp, fmt, args);
|
|
va_end(args);
|
|
Dqn_CppFPrint(cpp, "%s", cpp->k_and_r_indent ? "{\n" : "\n{");
|
|
Dqn_CppFIndent(cpp);
|
|
}
|
|
|
|
void Dqn_CppFEndBlock(Dqn_CppFile *cpp, bool trailing_semicolon, bool new_line_on_next_block)
|
|
{
|
|
Dqn_CppFUnindent(cpp);
|
|
Dqn_CppFLine(cpp, trailing_semicolon ? "};" : "}");
|
|
if (new_line_on_next_block)
|
|
fputc('\n', cpp->file);
|
|
}
|
|
#endif // DQN_CPP_FILE_IMPLEMENTATION
|